Annotation of loncom/homework/grades.pm, revision 1.651

1.17      albertel    1: # The LearningOnline Network with CAPA
1.13      albertel    2: # The LON-CAPA Grading handler
1.17      albertel    3: #
1.651   ! raeburn     4: # $Id: grades.pm,v 1.650 2011/09/17 19:01:20 raeburn Exp $
1.17      albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
1.1       albertel   28: 
1.529     jms        29: 
                     30: 
1.1       albertel   31: package Apache::grades;
                     32: use strict;
                     33: use Apache::style;
                     34: use Apache::lonxml;
                     35: use Apache::lonnet;
1.3       albertel   36: use Apache::loncommon;
1.112     ng         37: use Apache::lonhtmlcommon;
1.68      ng         38: use Apache::lonnavmaps;
1.1       albertel   39: use Apache::lonhomework;
1.456     banghart   40: use Apache::lonpickcode;
1.55      matthew    41: use Apache::loncoursedata;
1.362     albertel   42: use Apache::lonmsg();
1.646     raeburn    43: use Apache::Constants qw(:common :http);
1.167     sakharuk   44: use Apache::lonlocal;
1.386     raeburn    45: use Apache::lonenc;
1.622     www        46: use Apache::lonstathelpers;
1.639     www        47: use Apache::lonquickgrades;
1.170     albertel   48: use String::Similarity;
1.359     www        49: use LONCAPA;
                     50: 
1.315     bowersj2   51: use POSIX qw(floor);
1.87      www        52: 
1.435     foxr       53: 
1.513     foxr       54: 
1.435     foxr       55: my %perm=();
1.447     foxr       56: 
1.513     foxr       57: #  These variables are used to recover from ssi errors
                     58: 
                     59: my $ssi_retries = 5;
                     60: my $ssi_error;
                     61: my $ssi_error_resource;
                     62: my $ssi_error_message;
                     63: 
                     64: 
                     65: sub ssi_with_retries {
                     66:     my ($resource, $retries, %form) = @_;
                     67:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
                     68:     if ($response->is_error) {
                     69: 	$ssi_error          = 1;
                     70: 	$ssi_error_resource = $resource;
                     71: 	$ssi_error_message  = $response->code . " " . $response->message;
                     72:     }
                     73: 
                     74:     return $content;
                     75: 
                     76: }
                     77: #
                     78: #  Prodcuces an ssi retry failure error message to the user:
                     79: #
                     80: 
                     81: sub ssi_print_error {
                     82:     my ($r) = @_;
1.516     raeburn    83:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
                     84:     $r->print('
                     85: <br />
                     86: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
                     87: <p>
                     88: '.&mt('Unable to retrieve a resource from a server:').'<br />
                     89: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
                     90: '.&mt('Error:').' '.$ssi_error_message.'
                     91: </p>
                     92: <p>'.
                     93: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
                     94: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
                     95: '</p>');
                     96:     return;
1.513     foxr       97: }
                     98: 
1.44      ng         99: #
1.146     albertel  100: # --- Retrieve the parts from the metadata file.---
1.598     www       101: # Returns an array of everything that the resources stores away
                    102: #
                    103: 
1.44      ng        104: sub getpartlist {
1.582     raeburn   105:     my ($symb,$errorref) = @_;
1.439     albertel  106: 
                    107:     my $navmap   = Apache::lonnavmaps::navmap->new();
1.582     raeburn   108:     unless (ref($navmap)) {
                    109:         if (ref($errorref)) { 
                    110:             $$errorref = 'navmap';
                    111:             return;
                    112:         }
                    113:     }
1.439     albertel  114:     my $res      = $navmap->getBySymb($symb);
                    115:     my $partlist = $res->parts();
                    116:     my $url      = $res->src();
                    117:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
                    118: 
1.146     albertel  119:     my @stores;
1.439     albertel  120:     foreach my $part (@{ $partlist }) {
1.146     albertel  121: 	foreach my $key (@metakeys) {
                    122: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
                    123: 	}
                    124:     }
                    125:     return @stores;
1.2       albertel  126: }
                    127: 
1.129     ng        128: #--- Format fullname, username:domain if different for display
                    129: #--- Use anywhere where the student names are listed
                    130: sub nameUserString {
                    131:     my ($type,$fullname,$uname,$udom) = @_;
                    132:     if ($type eq 'header') {
1.485     albertel  133: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
1.129     ng        134:     } else {
1.398     albertel  135: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
                    136: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
1.129     ng        137:     }
                    138: }
                    139: 
1.44      ng        140: #--- Get the partlist and the response type for a given problem. ---
                    141: #--- Indicate if a response type is coded handgraded or not. ---
1.623     www       142: #--- Sets response_error pointer to "1" if navmaps object broken ---
1.39      ng        143: sub response_type {
1.582     raeburn   144:     my ($symb,$response_error) = @_;
1.377     albertel  145: 
                    146:     my $navmap = Apache::lonnavmaps::navmap->new();
1.582     raeburn   147:     unless (ref($navmap)) {
                    148:         if (ref($response_error)) {
                    149:             $$response_error = 1;
                    150:         }
                    151:         return;
                    152:     }
1.377     albertel  153:     my $res = $navmap->getBySymb($symb);
1.593     raeburn   154:     unless (ref($res)) {
                    155:         $$response_error = 1;
                    156:         return;
                    157:     }
1.377     albertel  158:     my $partlist = $res->parts();
1.392     albertel  159:     my %vPart = 
                    160: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
1.377     albertel  161:     my (%response_types,%handgrade);
                    162:     foreach my $part (@{ $partlist }) {
1.392     albertel  163: 	next if (%vPart && !exists($vPart{$part}));
                    164: 
1.377     albertel  165: 	my @types = $res->responseType($part);
                    166: 	my @ids = $res->responseIds($part);
                    167: 	for (my $i=0; $i < scalar(@ids); $i++) {
                    168: 	    $response_types{$part}{$ids[$i]} = $types[$i];
                    169: 	    $handgrade{$part.'_'.$ids[$i]} = 
                    170: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
                    171: 				     '.handgrade',$symb);
1.41      ng        172: 	}
                    173:     }
1.377     albertel  174:     return ($partlist,\%handgrade,\%response_types);
1.39      ng        175: }
                    176: 
1.375     albertel  177: sub flatten_responseType {
                    178:     my ($responseType) = @_;
                    179:     my @part_response_id =
                    180: 	map { 
                    181: 	    my $part = $_;
                    182: 	    map {
                    183: 		[$part,$_]
                    184: 		} sort(keys(%{ $responseType->{$part} }));
                    185: 	} sort(keys(%$responseType));
                    186:     return @part_response_id;
                    187: }
                    188: 
1.207     albertel  189: sub get_display_part {
1.324     albertel  190:     my ($partID,$symb)=@_;
1.207     albertel  191:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
                    192:     if (defined($display) and $display ne '') {
1.577     bisitz    193:         $display.= ' (<span class="LC_internal_info">'
                    194:                   .&mt('Part ID: [_1]',$partID).'</span>)';
1.207     albertel  195:     } else {
                    196: 	$display=$partID;
                    197:     }
                    198:     return $display;
                    199: }
1.269     raeburn   200: 
1.434     albertel  201: sub reset_caches {
                    202:     &reset_analyze_cache();
                    203:     &reset_perm();
                    204: }
                    205: 
                    206: {
                    207:     my %analyze_cache;
1.557     raeburn   208:     my %analyze_cache_formkeys;
1.148     albertel  209: 
1.434     albertel  210:     sub reset_analyze_cache {
                    211: 	undef(%analyze_cache);
1.557     raeburn   212:         undef(%analyze_cache_formkeys);
1.434     albertel  213:     }
                    214: 
                    215:     sub get_analyze {
1.649     raeburn   216: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
1.434     albertel  217: 	my $key = "$symb\0$uname\0$udom";
1.640     raeburn   218:         if ($type eq 'randomizetry') {
                    219:             if ($trial ne '') {
                    220:                 $key .= "\0".$trial;
                    221:             }
                    222:         }
1.557     raeburn   223: 	if (exists($analyze_cache{$key})) {
                    224:             my $getupdate = 0;
                    225:             if (ref($add_to_hash) eq 'HASH') {
                    226:                 foreach my $item (keys(%{$add_to_hash})) {
                    227:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
                    228:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
                    229:                             $getupdate = 1;
                    230:                             last;
                    231:                         }
                    232:                     } else {
                    233:                         $getupdate = 1;
                    234:                     }
                    235:                 }
                    236:             }
                    237:             if (!$getupdate) {
                    238:                 return $analyze_cache{$key};
                    239:             }
                    240:         }
1.434     albertel  241: 
                    242: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
                    243: 	$url=&Apache::lonnet::clutter($url);
1.557     raeburn   244:         my %form = ('grade_target'      => 'analyze',
                    245:                     'grade_domain'      => $udom,
                    246:                     'grade_symb'        => $symb,
                    247:                     'grade_courseid'    =>  $env{'request.course.id'},
                    248:                     'grade_username'    => $uname,
                    249:                     'grade_noincrement' => $no_increment);
1.649     raeburn   250:         if ($bubbles_per_row ne '') {
                    251:             $form{'bubbles_per_row'} = $bubbles_per_row;
                    252:         }
1.640     raeburn   253:         if ($type eq 'randomizetry') {
                    254:             $form{'grade_questiontype'} = $type;
                    255:             if ($rndseed ne '') {
                    256:                 $form{'grade_rndseed'} = $rndseed;
                    257:             }
                    258:         }
1.557     raeburn   259:         if (ref($add_to_hash)) {
                    260:             %form = (%form,%{$add_to_hash});
1.640     raeburn   261:         }
1.557     raeburn   262: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
1.434     albertel  263: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
                    264: 	my %analyze=&Apache::lonnet::str2hash($subresult);
1.557     raeburn   265:         if (ref($add_to_hash) eq 'HASH') {
                    266:             $analyze_cache_formkeys{$key} = $add_to_hash;
                    267:         } else {
                    268:             $analyze_cache_formkeys{$key} = {};
                    269:         }
1.434     albertel  270: 	return $analyze_cache{$key} = \%analyze;
                    271:     }
                    272: 
                    273:     sub get_order {
1.640     raeburn   274: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
                    275: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
1.434     albertel  276: 	return $analyze->{"$partid.$respid.shown"};
                    277:     }
                    278: 
                    279:     sub get_radiobutton_correct_foil {
1.640     raeburn   280: 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
                    281: 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
                    282:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
1.555     raeburn   283:         if (ref($foils) eq 'ARRAY') {
                    284: 	    foreach my $foil (@{$foils}) {
                    285: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
                    286: 		    return $foil;
                    287: 	        }
1.434     albertel  288: 	    }
                    289: 	}
                    290:     }
1.554     raeburn   291: 
                    292:     sub scantron_partids_tograde {
1.649     raeburn   293:         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row) = @_;
1.554     raeburn   294:         my (%analysis,@parts);
                    295:         if (ref($resource)) {
                    296:             my $symb = $resource->symb();
1.557     raeburn   297:             my $add_to_form;
                    298:             if ($check_for_randomlist) {
                    299:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
                    300:             }
1.649     raeburn   301:             my $analyze = 
                    302:                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
                    303:                              undef,undef,undef,$bubbles_per_row);
1.554     raeburn   304:             if (ref($analyze) eq 'HASH') {
                    305:                 %analysis = %{$analyze};
                    306:             }
                    307:             if (ref($analysis{'parts'}) eq 'ARRAY') {
                    308:                 foreach my $part (@{$analysis{'parts'}}) {
                    309:                     my ($id,$respid) = split(/\./,$part);
                    310:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
                    311:                         push(@parts,$part);
                    312:                     }
                    313:                 }
                    314:             }
                    315:         }
                    316:         return (\%analysis,\@parts);
                    317:     }
                    318: 
1.148     albertel  319: }
1.434     albertel  320: 
1.118     ng        321: #--- Clean response type for display
1.335     albertel  322: #--- Currently filters option/rank/radiobutton/match/essay/Task
                    323: #        response types only.
1.118     ng        324: sub cleanRecord {
1.336     albertel  325:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
1.640     raeburn   326: 	$uname,$udom,$type,$trial,$rndseed) = @_;
1.398     albertel  327:     my $grayFont = '<span class="LC_internal_info">';
1.148     albertel  328:     if ($response =~ /^(option|rank)$/) {
                    329: 	my %answer=&Apache::lonnet::str2hash($answer);
                    330: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
                    331: 	my ($toprow,$bottomrow);
                    332: 	foreach my $foil (@$order) {
                    333: 	    if ($grading{$foil} == 1) {
                    334: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
                    335: 	    } else {
                    336: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
                    337: 	    }
1.398     albertel  338: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
1.148     albertel  339: 	}
                    340: 	return '<blockquote><table border="1">'.
1.466     albertel  341: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
                    342: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
1.148     albertel  343: 	    $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
                    344:     } elsif ($response eq 'match') {
                    345: 	my %answer=&Apache::lonnet::str2hash($answer);
                    346: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
                    347: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
                    348: 	my ($toprow,$middlerow,$bottomrow);
                    349: 	foreach my $foil (@$order) {
                    350: 	    my $item=shift(@items);
                    351: 	    if ($grading{$foil} == 1) {
                    352: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
1.398     albertel  353: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
1.148     albertel  354: 	    } else {
                    355: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
1.398     albertel  356: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
1.148     albertel  357: 	    }
1.398     albertel  358: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
1.118     ng        359: 	}
1.126     ng        360: 	return '<blockquote><table border="1">'.
1.466     albertel  361: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
                    362: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
1.148     albertel  363: 	    $middlerow.'</tr>'.
1.466     albertel  364: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
1.148     albertel  365: 	    $bottomrow.'</tr>'.'</table></blockquote>';
                    366:     } elsif ($response eq 'radiobutton') {
                    367: 	my %answer=&Apache::lonnet::str2hash($answer);
                    368: 	my ($toprow,$bottomrow);
1.434     albertel  369: 	my $correct = 
1.640     raeburn   370: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
1.434     albertel  371: 	foreach my $foil (@$order) {
1.148     albertel  372: 	    if (exists($answer{$foil})) {
1.434     albertel  373: 		if ($foil eq $correct) {
1.466     albertel  374: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
1.148     albertel  375: 		} else {
1.466     albertel  376: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
1.148     albertel  377: 		}
                    378: 	    } else {
1.466     albertel  379: 		$toprow.='<td>'.&mt('false').'</td>';
1.148     albertel  380: 	    }
1.398     albertel  381: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
1.148     albertel  382: 	}
                    383: 	return '<blockquote><table border="1">'.
1.466     albertel  384: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
                    385: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
1.597     wenzelju  386: 	    $bottomrow.'</tr>'.'</table></blockquote>';
1.148     albertel  387:     } elsif ($response eq 'essay') {
1.257     albertel  388: 	if (! exists ($env{'form.'.$symb})) {
1.122     ng        389: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
1.257     albertel  390: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
                    391: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
1.122     ng        392: 
1.257     albertel  393: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
                    394: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
                    395: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
                    396: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
                    397: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
                    398: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
1.122     ng        399: 	}
1.166     albertel  400: 	$answer =~ s-\n-<br />-g;
                    401: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
1.268     albertel  402:     } elsif ( $response eq 'organic') {
                    403: 	my $result='Smile representation: "<tt>'.$answer.'</tt>"';
                    404: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
                    405: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
                    406: 	return $result;
1.335     albertel  407:     } elsif ( $response eq 'Task') {
                    408: 	if ( $answer eq 'SUBMITTED') {
                    409: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
1.336     albertel  410: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
1.335     albertel  411: 	    return $result;
                    412: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
                    413: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
                    414: 			       keys(%{$record}));
                    415: 	    return join('<br />',($version,@matches));
                    416: 			       
                    417: 			       
                    418: 	} else {
                    419: 	    my $result =
                    420: 		'<p>'
                    421: 		.&mt('Overall result: [_1]',
                    422: 		     $record->{$version."resource.$respid.$partid.status"})
                    423: 		.'</p>';
                    424: 	    
                    425: 	    $result .= '<ul>';
                    426: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
                    427: 			     keys(%{$record}));
                    428: 	    foreach my $grade (sort(@grade)) {
                    429: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
                    430: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
                    431: 				     $dim, $record->{$grade}).
                    432: 			  '</li>';
                    433: 	    }
                    434: 	    $result.='</ul>';
                    435: 	    return $result;
                    436: 	}
1.440     albertel  437:     } elsif ( $response =~ m/(?:numerical|formula)/) {
                    438: 	$answer = 
                    439: 	    &Apache::loncommon::format_previous_attempt_value('submission',
                    440: 							      $answer);
1.122     ng        441:     }
1.118     ng        442:     return $answer;
                    443: }
                    444: 
                    445: #-- A couple of common js functions
                    446: sub commonJSfunctions {
                    447:     my $request = shift;
1.597     wenzelju  448:     $request->print(&Apache::lonhtmlcommon::scripttag(<<COMMONJSFUNCTIONS));
1.118     ng        449:     function radioSelection(radioButton) {
                    450: 	var selection=null;
                    451: 	if (radioButton.length > 1) {
                    452: 	    for (var i=0; i<radioButton.length; i++) {
                    453: 		if (radioButton[i].checked) {
                    454: 		    return radioButton[i].value;
                    455: 		}
                    456: 	    }
                    457: 	} else {
                    458: 	    if (radioButton.checked) return radioButton.value;
                    459: 	}
                    460: 	return selection;
                    461:     }
                    462: 
                    463:     function pullDownSelection(selectOne) {
                    464: 	var selection="";
                    465: 	if (selectOne.length > 1) {
                    466: 	    for (var i=0; i<selectOne.length; i++) {
                    467: 		if (selectOne[i].selected) {
                    468: 		    return selectOne[i].value;
                    469: 		}
                    470: 	    }
                    471: 	} else {
1.138     albertel  472:             // only one value it must be the selected one
                    473: 	    return selectOne.value;
1.118     ng        474: 	}
                    475:     }
                    476: COMMONJSFUNCTIONS
                    477: }
                    478: 
1.44      ng        479: #--- Dumps the class list with usernames,list of sections,
                    480: #--- section, ids and fullnames for each user.
                    481: sub getclasslist {
1.449     banghart  482:     my ($getsec,$filterlist,$getgroup) = @_;
1.291     albertel  483:     my @getsec;
1.450     banghart  484:     my @getgroup;
1.442     banghart  485:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
1.291     albertel  486:     if (!ref($getsec)) {
                    487: 	if ($getsec ne '' && $getsec ne 'all') {
                    488: 	    @getsec=($getsec);
                    489: 	}
                    490:     } else {
                    491: 	@getsec=@{$getsec};
                    492:     }
                    493:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
1.450     banghart  494:     if (!ref($getgroup)) {
                    495: 	if ($getgroup ne '' && $getgroup ne 'all') {
                    496: 	    @getgroup=($getgroup);
                    497: 	}
                    498:     } else {
                    499: 	@getgroup=@{$getgroup};
                    500:     }
                    501:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
1.291     albertel  502: 
1.449     banghart  503:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
1.49      albertel  504:     # Bail out if we were unable to get the classlist
1.56      matthew   505:     return if (! defined($classlist));
1.449     banghart  506:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
1.56      matthew   507:     #
                    508:     my %sections;
                    509:     my %fullnames;
1.205     matthew   510:     foreach my $student (keys(%$classlist)) {
                    511:         my $end      = 
                    512:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
                    513:         my $start    = 
                    514:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
                    515:         my $id       = 
                    516:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
                    517:         my $section  = 
                    518:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
                    519:         my $fullname = 
                    520:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
                    521:         my $status   = 
                    522:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
1.449     banghart  523:         my $group   = 
                    524:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
1.76      ng        525: 	# filter students according to status selected
1.442     banghart  526: 	if ($filterlist && (!($stu_status =~ /Any/))) {
                    527: 	    if (!($stu_status =~ $status)) {
1.450     banghart  528: 		delete($classlist->{$student});
1.76      ng        529: 		next;
                    530: 	    }
                    531: 	}
1.450     banghart  532: 	# filter students according to groups selected
1.453     banghart  533: 	my @stu_groups = split(/,/,$group);
1.450     banghart  534: 	if (@getgroup) {
                    535: 	    my $exclude = 1;
1.454     banghart  536: 	    foreach my $grp (@getgroup) {
                    537: 	        foreach my $stu_group (@stu_groups) {
1.453     banghart  538: 	            if ($stu_group eq $grp) {
                    539: 	                $exclude = 0;
                    540:     	            } 
1.450     banghart  541: 	        }
1.453     banghart  542:     	        if (($grp eq 'none') && !$group) {
                    543:         	        $exclude = 0;
                    544:         	}
1.450     banghart  545: 	    }
                    546: 	    if ($exclude) {
                    547: 	        delete($classlist->{$student});
                    548: 	    }
                    549: 	}
1.205     matthew   550: 	$section = ($section ne '' ? $section : 'none');
1.106     albertel  551: 	if (&canview($section)) {
1.291     albertel  552: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
1.103     albertel  553: 		$sections{$section}++;
1.450     banghart  554: 		if ($classlist->{$student}) {
                    555: 		    $fullnames{$student}=$fullname;
                    556: 		}
1.103     albertel  557: 	    } else {
1.205     matthew   558: 		delete($classlist->{$student});
1.103     albertel  559: 	    }
                    560: 	} else {
1.205     matthew   561: 	    delete($classlist->{$student});
1.103     albertel  562: 	}
1.44      ng        563:     }
                    564:     my %seen = ();
1.56      matthew   565:     my @sections = sort(keys(%sections));
                    566:     return ($classlist,\@sections,\%fullnames);
1.44      ng        567: }
                    568: 
1.103     albertel  569: sub canmodify {
                    570:     my ($sec)=@_;
                    571:     if ($perm{'mgr'}) {
                    572: 	if (!defined($perm{'mgr_section'})) {
                    573: 	    # can modify whole class
                    574: 	    return 1;
                    575: 	} else {
                    576: 	    if ($sec eq $perm{'mgr_section'}) {
                    577: 		#can modify the requested section
                    578: 		return 1;
                    579: 	    } else {
                    580: 		# can't modify the request section
                    581: 		return 0;
                    582: 	    }
                    583: 	}
                    584:     }
                    585:     #can't modify
                    586:     return 0;
                    587: }
                    588: 
                    589: sub canview {
                    590:     my ($sec)=@_;
                    591:     if ($perm{'vgr'}) {
                    592: 	if (!defined($perm{'vgr_section'})) {
                    593: 	    # can modify whole class
                    594: 	    return 1;
                    595: 	} else {
                    596: 	    if ($sec eq $perm{'vgr_section'}) {
                    597: 		#can modify the requested section
                    598: 		return 1;
                    599: 	    } else {
                    600: 		# can't modify the request section
                    601: 		return 0;
                    602: 	    }
                    603: 	}
                    604:     }
                    605:     #can't modify
                    606:     return 0;
                    607: }
                    608: 
1.44      ng        609: #--- Retrieve the grade status of a student for all the parts
                    610: sub student_gradeStatus {
1.324     albertel  611:     my ($symb,$udom,$uname,$partlist) = @_;
1.257     albertel  612:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
1.44      ng        613:     my %partstatus = ();
                    614:     foreach (@$partlist) {
1.128     ng        615: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
1.44      ng        616: 	$status              = 'nothing' if ($status eq '');
                    617: 	$partstatus{$_}      = $status;
                    618: 	my $subkey           = "resource.$_.submitted_by";
                    619: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
                    620:     }
                    621:     return %partstatus;
                    622: }
                    623: 
1.45      ng        624: # hidden form and javascript that calls the form
                    625: # Use by verifyscript and viewgrades
                    626: # Shows a student's view of problem and submission
                    627: sub jscriptNform {
1.324     albertel  628:     my ($symb) = @_;
1.442     banghart  629:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
1.597     wenzelju  630:     my $jscript= &Apache::lonhtmlcommon::scripttag(
1.45      ng        631: 	'    function viewOneStudent(user,domain) {'."\n".
                    632: 	'	document.onestudent.student.value = user;'."\n".
                    633: 	'	document.onestudent.userdom.value = domain;'."\n".
                    634: 	'	document.onestudent.submit();'."\n".
                    635: 	'    }'."\n".
1.597     wenzelju  636: 	"\n");
1.45      ng        637:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
1.418     albertel  638: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
1.442     banghart  639: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
1.45      ng        640: 	'<input type="hidden" name="command" value="submission" />'."\n".
                    641: 	'<input type="hidden" name="student" value="" />'."\n".
                    642: 	'<input type="hidden" name="userdom" value="" />'."\n".
                    643: 	'</form>'."\n";
                    644:     return $jscript;
                    645: }
1.39      ng        646: 
1.447     foxr      647: 
                    648: 
1.315     bowersj2  649: # Given the score (as a number [0-1] and the weight) what is the final
                    650: # point value? This function will round to the nearest tenth, third,
                    651: # or quarter if one of those is within the tolerance of .00001.
1.316     albertel  652: sub compute_points {
1.315     bowersj2  653:     my ($score, $weight) = @_;
                    654:     
                    655:     my $tolerance = .00001;
                    656:     my $points = $score * $weight;
                    657: 
                    658:     # Check for nearness to 1/x.
                    659:     my $check_for_nearness = sub {
                    660:         my ($factor) = @_;
                    661:         my $num = ($points * $factor) + $tolerance;
                    662:         my $floored_num = floor($num);
1.316     albertel  663:         if ($num - $floored_num < 2 * $tolerance * $factor) {
1.315     bowersj2  664:             return $floored_num / $factor;
                    665:         }
                    666:         return $points;
                    667:     };
                    668: 
                    669:     $points = $check_for_nearness->(10);
                    670:     $points = $check_for_nearness->(3);
                    671:     $points = $check_for_nearness->(4);
                    672:     
                    673:     return $points;
                    674: }
                    675: 
1.44      ng        676: #------------------ End of general use routines --------------------
1.87      www       677: 
                    678: #
                    679: # Find most similar essay
                    680: #
                    681: 
                    682: sub most_similar {
1.426     albertel  683:     my ($uname,$udom,$uessay,$old_essays)=@_;
1.87      www       684: 
                    685: # ignore spaces and punctuation
                    686: 
                    687:     $uessay=~s/\W+/ /gs;
                    688: 
1.282     www       689: # ignore empty submissions (occuring when only files are sent)
                    690: 
1.598     www       691:     unless ($uessay=~/\w+/s) { return ''; }
1.282     www       692: 
1.87      www       693: # these will be returned. Do not care if not at least 50 percent similar
1.88      www       694:     my $limit=0.6;
1.87      www       695:     my $sname='';
                    696:     my $sdom='';
                    697:     my $scrsid='';
                    698:     my $sessay='';
                    699: # go through all essays ...
1.426     albertel  700:     foreach my $tkey (keys(%$old_essays)) {
                    701: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
1.87      www       702: # ... except the same student
1.426     albertel  703:         next if (($tname eq $uname) && ($tdom eq $udom));
                    704: 	my $tessay=$old_essays->{$tkey};
                    705: 	$tessay=~s/\W+/ /gs;
1.87      www       706: # String similarity gives up if not even limit
1.426     albertel  707: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
1.87      www       708: # Found one
1.426     albertel  709: 	if ($tsimilar>$limit) {
                    710: 	    $limit=$tsimilar;
                    711: 	    $sname=$tname;
                    712: 	    $sdom=$tdom;
                    713: 	    $scrsid=$tcrsid;
                    714: 	    $sessay=$old_essays->{$tkey};
                    715: 	}
1.87      www       716:     }
1.88      www       717:     if ($limit>0.6) {
1.87      www       718:        return ($sname,$sdom,$scrsid,$sessay,$limit);
                    719:     } else {
                    720:        return ('','','','',0);
                    721:     }
                    722: }
                    723: 
1.44      ng        724: #-------------------------------------------------------------------
                    725: 
                    726: #------------------------------------ Receipt Verification Routines
1.45      ng        727: #
1.602     www       728: 
                    729: sub initialverifyreceipt {
1.608     www       730:    my ($request,$symb) = @_;
1.602     www       731:    &commonJSfunctions($request);
1.605     www       732:    return '<form name="gradingMenu"><input type="submit" value="'.&mt('Verify Receipt Number.').'" />'.
1.602     www       733:         &Apache::lonnet::recprefix($env{'request.course.id'}).
                    734:         '-<input type="text" name="receipt" size="4" />'.
1.603     www       735:         '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
                    736:         '<input type="hidden" name="command" value="verify" />'.
                    737:         "</form>\n";
1.602     www       738: }
                    739: 
1.44      ng        740: #--- Check whether a receipt number is valid.---
                    741: sub verifyreceipt {
1.608     www       742:     my ($request,$symb)  = @_;
1.44      ng        743: 
1.257     albertel  744:     my $courseid = $env{'request.course.id'};
1.184     www       745:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
1.257     albertel  746: 	$env{'form.receipt'};
1.44      ng        747:     $receipt     =~ s/[^\-\d]//g;
                    748: 
1.487     albertel  749:     my $title.=
                    750: 	'<h3><span class="LC_info">'.
1.605     www       751: 	&mt('Verifying Receipt Number [_1]',$receipt).
                    752: 	'</span></h3>'."\n";
1.44      ng        753: 
                    754:     my ($string,$contents,$matches) = ('','',0);
1.56      matthew   755:     my (undef,undef,$fullname) = &getclasslist('all','0');
1.177     albertel  756:     
                    757:     my $receiptparts=0;
1.390     albertel  758:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
                    759: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
1.177     albertel  760:     my $parts=['0'];
1.582     raeburn   761:     if ($receiptparts) {
                    762:         my $res_error; 
                    763:         ($parts)=&response_type($symb,\$res_error);
                    764:         if ($res_error) {
                    765:             return &navmap_errormsg();
                    766:         } 
                    767:     }
1.486     albertel  768:     
                    769:     my $header = 
                    770: 	&Apache::loncommon::start_data_table().
                    771: 	&Apache::loncommon::start_data_table_header_row().
1.487     albertel  772: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
                    773: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
                    774: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
1.486     albertel  775:     if ($receiptparts) {
1.487     albertel  776: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
1.486     albertel  777:     }
                    778:     $header.=
                    779: 	&Apache::loncommon::end_data_table_header_row();
                    780: 
1.294     albertel  781:     foreach (sort 
                    782: 	     {
                    783: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
                    784: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
                    785: 		 }
                    786: 		 return $a cmp $b;
                    787: 	     } (keys(%$fullname))) {
1.44      ng        788: 	my ($uname,$udom)=split(/\:/);
1.177     albertel  789: 	foreach my $part (@$parts) {
                    790: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
1.486     albertel  791: 		$contents.=
                    792: 		    &Apache::loncommon::start_data_table_row().
                    793: 		    '<td>&nbsp;'."\n".
1.177     albertel  794: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
1.417     albertel  795: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
1.177     albertel  796: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
                    797: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
                    798: 		if ($receiptparts) {
                    799: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
                    800: 		}
1.486     albertel  801: 		$contents.= 
                    802: 		    &Apache::loncommon::end_data_table_row()."\n";
1.177     albertel  803: 		
                    804: 		$matches++;
                    805: 	    }
1.44      ng        806: 	}
                    807:     }
                    808:     if ($matches == 0) {
1.584     bisitz    809:         $string = $title
                    810:                  .'<p class="LC_warning">'
                    811:                  .&mt('No match found for the above receipt number.')
                    812:                  .'</p>';
1.44      ng        813:     } else {
1.324     albertel  814: 	$string = &jscriptNform($symb).$title.
1.487     albertel  815: 	    '<p>'.
1.584     bisitz    816: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
1.487     albertel  817: 	    '</p>'.
1.486     albertel  818: 	    $header.
                    819: 	    $contents.
                    820: 	    &Apache::loncommon::end_data_table()."\n";
1.44      ng        821:     }
1.614     www       822:     return $string;
1.44      ng        823: }
                    824: 
                    825: #--- This is called by a number of programs.
                    826: #--- Called from the Grading Menu - View/Grade an individual student
                    827: #--- Also called directly when one clicks on the subm button 
                    828: #    on the problem page.
1.30      ng        829: sub listStudents {
1.617     www       830:     my ($request,$symb,$submitonly) = @_;
1.49      albertel  831: 
1.257     albertel  832:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
                    833:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
                    834:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
1.449     banghart  835:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
1.617     www       836:     unless ($submitonly) {
                    837:        $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
                    838:     }
1.49      albertel  839: 
1.632     www       840:     my $result='';
1.623     www       841:     my $res_error;
                    842:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
1.49      albertel  843: 
1.559     raeburn   844:     my %lt = &Apache::lonlocal::texthash (
                    845: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
                    846: 		'single'   => 'Please select the student before clicking on the Next button.',
                    847: 	     );
1.597     wenzelju  848:     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
1.110     ng        849:     function checkSelect(checkBox) {
                    850: 	var ctr=0;
                    851: 	var sense="";
                    852: 	if (checkBox.length > 1) {
                    853: 	    for (var i=0; i<checkBox.length; i++) {
                    854: 		if (checkBox[i].checked) {
                    855: 		    ctr++;
                    856: 		}
                    857: 	    }
1.485     albertel  858: 	    sense = '$lt{'multiple'}';
1.110     ng        859: 	} else {
                    860: 	    if (checkBox.checked) {
                    861: 		ctr = 1;
                    862: 	    }
1.485     albertel  863: 	    sense = '$lt{'single'}';
1.110     ng        864: 	}
                    865: 	if (ctr == 0) {
1.485     albertel  866: 	    alert(sense);
1.110     ng        867: 	    return false;
                    868: 	}
                    869: 	document.gradesub.submit();
                    870:     }
                    871: 
                    872:     function reLoadList(formname) {
1.112     ng        873: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
1.110     ng        874: 	formname.command.value = 'submission';
                    875: 	formname.submit();
                    876:     }
1.45      ng        877: LISTJAVASCRIPT
                    878: 
1.118     ng        879:     &commonJSfunctions($request);
1.41      ng        880:     $request->print($result);
1.39      ng        881: 
1.154     albertel  882:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
1.598     www       883: 	"\n";
1.485     albertel  884: 	
1.561     bisitz    885:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
                    886:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
                    887:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
                    888:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
                    889:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
                    890:                   .&Apache::lonhtmlcommon::row_closure();
                    891:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
                    892:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
                    893:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
                    894:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
                    895:                   .&Apache::lonhtmlcommon::row_closure();
1.485     albertel  896: 
                    897:     my $submission_options;
1.442     banghart  898:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
                    899:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
1.257     albertel  900:     $env{'form.Status'} = $saveStatus;
1.485     albertel  901:     $submission_options.=
1.592     bisitz    902:         '<span class="LC_nobreak">'.
1.624     www       903:         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
1.592     bisitz    904:         &mt('last submission only').' </label></span>'."\n".
                    905:         '<span class="LC_nobreak">'.
                    906:         '<label><input type="radio" name="lastSub" value="last" /> '.
                    907:         &mt('last submission &amp; parts info').' </label></span>'."\n".
                    908:         '<span class="LC_nobreak">'.
1.628     www       909:         '<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.
1.592     bisitz    910:         &mt('by dates and submissions').'</label></span>'."\n".
                    911:         '<span class="LC_nobreak">'.
                    912:         '<label><input type="radio" name="lastSub" value="all" /> '.
                    913:         &mt('all details').'</label></span>';
1.561     bisitz    914:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
                    915:                   .$submission_options
                    916:                   .&Apache::lonhtmlcommon::row_closure();
                    917: 
                    918:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
                    919:                   .'<select name="increment">'
                    920:                   .'<option value="1">'.&mt('Whole Points').'</option>'
                    921:                   .'<option value=".5">'.&mt('Half Points').'</option>'
                    922:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
                    923:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
                    924:                   .'</select>'
                    925:                   .&Apache::lonhtmlcommon::row_closure();
1.485     albertel  926: 
                    927:     $gradeTable .= 
1.432     banghart  928:         &build_section_inputs().
1.45      ng        929: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
1.418     albertel  930: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
1.110     ng        931: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
                    932: 
1.618     www       933:     if (exists($env{'form.Status'})) {
1.561     bisitz    934: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
1.124     ng        935:     } else {
1.561     bisitz    936:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
                    937:                       .&Apache::lonhtmlcommon::StatusOptions(
                    938:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
                    939:                       .&Apache::lonhtmlcommon::row_closure();
1.124     ng        940:     }
1.112     ng        941: 
1.561     bisitz    942:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
                    943:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
                    944:                   .&Apache::lonhtmlcommon::row_closure(1)
                    945:                   .&Apache::lonhtmlcommon::end_pick_box();
                    946: 
                    947:     $gradeTable .= '<p>'
1.618     www       948:                   .&mt("To view/grade/regrade a submission or a group of submissions, click on the check box(es) next to the student's name(s). Then click on the Next button.")."\n"
1.561     bisitz    949:                   .'<input type="hidden" name="command" value="processGroup" />'
                    950:                   .'</p>';
1.249     albertel  951: 
                    952: # checkall buttons
                    953:     $gradeTable.=&check_script('gradesub', 'stuinfo');
1.110     ng        954:     $gradeTable.='<input type="button" '."\n".
1.589     bisitz    955:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
                    956:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
1.249     albertel  957:     $gradeTable.=&check_buttons();
1.450     banghart  958:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
1.474     albertel  959:     $gradeTable.= &Apache::loncommon::start_data_table().
                    960: 	&Apache::loncommon::start_data_table_header_row();
1.110     ng        961:     my $loop = 0;
                    962:     while ($loop < 2) {
1.485     albertel  963: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
                    964: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
1.618     www       965: 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
1.485     albertel  966: 	    foreach my $part (sort(@$partlist)) {
                    967: 		my $display_part=
                    968: 		    &get_display_part((split(/_/,$part))[0],$symb);
                    969: 		$gradeTable.=
                    970: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
1.110     ng        971: 	    }
1.301     albertel  972: 	} elsif ($submitonly eq 'queued') {
1.474     albertel  973: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
1.110     ng        974: 	}
                    975: 	$loop++;
1.126     ng        976: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
1.41      ng        977:     }
1.474     albertel  978:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
1.41      ng        979: 
1.45      ng        980:     my $ctr = 0;
1.294     albertel  981:     foreach my $student (sort 
                    982: 			 {
                    983: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
                    984: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
                    985: 			     }
                    986: 			     return $a cmp $b;
                    987: 			 }
                    988: 			 (keys(%$fullname))) {
1.41      ng        989: 	my ($uname,$udom) = split(/:/,$student);
1.301     albertel  990: 
1.110     ng        991: 	my %status = ();
1.301     albertel  992: 
                    993: 	if ($submitonly eq 'queued') {
                    994: 	    my %queue_status = 
                    995: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
                    996: 							$udom,$uname);
                    997: 	    next if (!defined($queue_status{'gradingqueue'}));
                    998: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
                    999: 	}
                   1000: 
1.618     www      1001: 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
1.324     albertel 1002: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
1.145     albertel 1003: 	    my $submitted = 0;
1.164     albertel 1004: 	    my $graded = 0;
1.248     albertel 1005: 	    my $incorrect = 0;
1.110     ng       1006: 	    foreach (keys(%status)) {
1.145     albertel 1007: 		$submitted = 1 if ($status{$_} ne 'nothing');
1.248     albertel 1008: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
                   1009: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
                   1010: 		
1.110     ng       1011: 		my ($foo,$partid,$foo1) = split(/\./,$_);
                   1012: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
1.145     albertel 1013: 		    $submitted = 0;
1.150     albertel 1014: 		    my ($part)=split(/\./,$partid);
1.110     ng       1015: 		    $gradeTable.='<input type="hidden" name="'.
1.150     albertel 1016: 			$student.':'.$part.':submitted_by" value="'.
1.110     ng       1017: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
                   1018: 		}
1.41      ng       1019: 	    }
1.248     albertel 1020: 	    
1.156     albertel 1021: 	    next if (!$submitted && ($submitonly eq 'yes' ||
                   1022: 				     $submitonly eq 'incorrect' ||
                   1023: 				     $submitonly eq 'graded'));
1.248     albertel 1024: 	    next if (!$graded && ($submitonly eq 'graded'));
                   1025: 	    next if (!$incorrect && $submitonly eq 'incorrect');
1.41      ng       1026: 	}
1.34      ng       1027: 
1.45      ng       1028: 	$ctr++;
1.249     albertel 1029: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
1.452     banghart 1030:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
1.104     albertel 1031: 	if ( $perm{'vgr'} eq 'F' ) {
1.474     albertel 1032: 	    if ($ctr%2 ==1) {
                   1033: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
                   1034: 	    }
1.126     ng       1035: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
1.563     bisitz   1036:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
1.249     albertel 1037:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
                   1038: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
                   1039: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
1.474     albertel 1040: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
1.110     ng       1041: 
1.618     www      1042: 	    if ($submitonly ne 'all') {
1.524     raeburn  1043: 		foreach (sort(keys(%status))) {
1.485     albertel 1044: 		    next if ($_ =~ /^resource.*?submitted_by$/);
                   1045: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
1.110     ng       1046: 		}
1.41      ng       1047: 	    }
1.126     ng       1048: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
1.474     albertel 1049: 	    if ($ctr%2 ==0) {
                   1050: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
                   1051: 	    }
1.41      ng       1052: 	}
                   1053:     }
1.110     ng       1054:     if ($ctr%2 ==1) {
1.126     ng       1055: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
1.618     www      1056: 	    if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
1.110     ng       1057: 		foreach (@$partlist) {
                   1058: 		    $gradeTable.='<td>&nbsp;</td>';
                   1059: 		}
1.301     albertel 1060: 	    } elsif ($submitonly eq 'queued') {
                   1061: 		$gradeTable.='<td>&nbsp;</td>';
1.110     ng       1062: 	    }
1.474     albertel 1063: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
1.110     ng       1064:     }
                   1065: 
1.474     albertel 1066:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
1.589     bisitz   1067:         '<input type="button" '.
                   1068:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
                   1069:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
1.45      ng       1070:     if ($ctr == 0) {
1.96      albertel 1071: 	my $num_students=(scalar(keys(%$fullname)));
                   1072: 	if ($num_students eq 0) {
1.485     albertel 1073: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
1.96      albertel 1074: 	} else {
1.171     albertel 1075: 	    my $submissions='submissions';
                   1076: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
                   1077: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
1.301     albertel 1078: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
1.398     albertel 1079: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
1.485     albertel 1080: 		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
                   1081: 		    $num_students).
                   1082: 		'</span><br />';
1.96      albertel 1083: 	}
1.46      ng       1084:     } elsif ($ctr == 1) {
1.474     albertel 1085: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
1.45      ng       1086:     }
                   1087:     $request->print($gradeTable);
1.44      ng       1088:     return '';
1.10      ng       1089: }
                   1090: 
1.44      ng       1091: #---- Called from the listStudents routine
1.249     albertel 1092: 
                   1093: sub check_script {
                   1094:     my ($form, $type)=@_;
1.597     wenzelju 1095:     my $chkallscript= &Apache::lonhtmlcommon::scripttag('
1.249     albertel 1096:     function checkall() {
                   1097:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
                   1098:             ele = document.forms.'.$form.'.elements[i];
                   1099:             if (ele.name == "'.$type.'") {
                   1100:             document.forms.'.$form.'.elements[i].checked=true;
                   1101:                                        }
                   1102:         }
                   1103:     }
                   1104: 
                   1105:     function checksec() {
                   1106:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
                   1107:             ele = document.forms.'.$form.'.elements[i];
                   1108:            string = document.forms.'.$form.'.chksec.value;
                   1109:            if
                   1110:           (ele.value.indexOf(":::SECTION"+string)>0) {
                   1111:               document.forms.'.$form.'.elements[i].checked=true;
                   1112:             }
                   1113:         }
                   1114:     }
                   1115: 
                   1116: 
                   1117:     function uncheckall() {
                   1118:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
                   1119:             ele = document.forms.'.$form.'.elements[i];
                   1120:             if (ele.name == "'.$type.'") {
                   1121:             document.forms.'.$form.'.elements[i].checked=false;
                   1122:                                        }
                   1123:         }
                   1124:     }
                   1125: 
1.597     wenzelju 1126: '."\n");
1.249     albertel 1127:     return $chkallscript;
                   1128: }
                   1129: 
                   1130: sub check_buttons {
1.485     albertel 1131:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
                   1132:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
                   1133:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
1.249     albertel 1134:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
                   1135:     return $buttons;
                   1136: }
                   1137: 
1.44      ng       1138: #     Displays the submissions for one student or a group of students
1.34      ng       1139: sub processGroup {
1.619     www      1140:     my ($request,$symb)  = @_;
1.41      ng       1141:     my $ctr        = 0;
1.155     albertel 1142:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
1.41      ng       1143:     my $total      = scalar(@stuchecked)-1;
1.45      ng       1144: 
1.396     banghart 1145:     foreach my $student (@stuchecked) {
                   1146: 	my ($uname,$udom,$fullname) = split(/:/,$student);
1.257     albertel 1147: 	$env{'form.student'}        = $uname;
                   1148: 	$env{'form.userdom'}        = $udom;
                   1149: 	$env{'form.fullname'}       = $fullname;
1.619     www      1150: 	&submission($request,$ctr,$total,$symb);
1.41      ng       1151: 	$ctr++;
                   1152:     }
                   1153:     return '';
1.35      ng       1154: }
1.34      ng       1155: 
1.44      ng       1156: #------------------------------------------------------------------------------------
                   1157: #
                   1158: #-------------------------- Next few routines handles grading by student, essentially
                   1159: #                           handles essay response type problem/part
                   1160: #
                   1161: #--- Javascript to handle the submission page functionality ---
                   1162: sub sub_page_js {
                   1163:     my $request = shift;
1.539     riegler  1164: 	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
1.597     wenzelju 1165:     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
1.71      ng       1166:     function updateRadio(formname,id,weight) {
1.125     ng       1167: 	var gradeBox = formname["GD_BOX"+id];
                   1168: 	var radioButton = formname["RADVAL"+id];
                   1169: 	var oldpts = formname["oldpts"+id].value;
1.72      ng       1170: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
1.71      ng       1171: 	gradeBox.value = pts;
                   1172: 	var resetbox = false;
                   1173: 	if (isNaN(pts) || pts < 0) {
1.539     riegler  1174: 	    alert("$alertmsg"+pts);
1.71      ng       1175: 	    for (var i=0; i<radioButton.length; i++) {
                   1176: 		if (radioButton[i].checked) {
                   1177: 		    gradeBox.value = i;
                   1178: 		    resetbox = true;
                   1179: 		}
                   1180: 	    }
                   1181: 	    if (!resetbox) {
                   1182: 		formtextbox.value = "";
                   1183: 	    }
                   1184: 	    return;
1.44      ng       1185: 	}
1.71      ng       1186: 
                   1187: 	if (pts > weight) {
                   1188: 	    var resp = confirm("You entered a value ("+pts+
                   1189: 			       ") greater than the weight for the part. Accept?");
                   1190: 	    if (resp == false) {
1.125     ng       1191: 		gradeBox.value = oldpts;
1.71      ng       1192: 		return;
                   1193: 	    }
1.44      ng       1194: 	}
1.13      albertel 1195: 
1.71      ng       1196: 	for (var i=0; i<radioButton.length; i++) {
                   1197: 	    radioButton[i].checked=false;
                   1198: 	    if (pts == i && pts != "") {
                   1199: 		radioButton[i].checked=true;
                   1200: 	    }
                   1201: 	}
                   1202: 	updateSelect(formname,id);
1.125     ng       1203: 	formname["stores"+id].value = "0";
1.41      ng       1204:     }
1.5       albertel 1205: 
1.72      ng       1206:     function writeBox(formname,id,pts) {
1.125     ng       1207: 	var gradeBox = formname["GD_BOX"+id];
1.71      ng       1208: 	if (checkSolved(formname,id) == 'update') {
                   1209: 	    gradeBox.value = pts;
                   1210: 	} else {
1.125     ng       1211: 	    var oldpts = formname["oldpts"+id].value;
1.72      ng       1212: 	    gradeBox.value = oldpts;
1.125     ng       1213: 	    var radioButton = formname["RADVAL"+id];
1.71      ng       1214: 	    for (var i=0; i<radioButton.length; i++) {
                   1215: 		radioButton[i].checked=false;
1.72      ng       1216: 		if (i == oldpts) {
1.71      ng       1217: 		    radioButton[i].checked=true;
                   1218: 		}
                   1219: 	    }
1.41      ng       1220: 	}
1.125     ng       1221: 	formname["stores"+id].value = "0";
1.71      ng       1222: 	updateSelect(formname,id);
                   1223: 	return;
1.41      ng       1224:     }
1.44      ng       1225: 
1.71      ng       1226:     function clearRadBox(formname,id) {
                   1227: 	if (checkSolved(formname,id) == 'noupdate') {
                   1228: 	    updateSelect(formname,id);
                   1229: 	    return;
                   1230: 	}
1.125     ng       1231: 	gradeSelect = formname["GD_SEL"+id];
1.71      ng       1232: 	for (var i=0; i<gradeSelect.length; i++) {
                   1233: 	    if (gradeSelect[i].selected) {
                   1234: 		var selectx=i;
                   1235: 	    }
                   1236: 	}
1.125     ng       1237: 	var stores = formname["stores"+id];
1.71      ng       1238: 	if (selectx == stores.value) { return };
1.125     ng       1239: 	var gradeBox = formname["GD_BOX"+id];
1.71      ng       1240: 	gradeBox.value = "";
1.125     ng       1241: 	var radioButton = formname["RADVAL"+id];
1.71      ng       1242: 	for (var i=0; i<radioButton.length; i++) {
                   1243: 	    radioButton[i].checked=false;
                   1244: 	}
                   1245: 	stores.value = selectx;
                   1246:     }
1.5       albertel 1247: 
1.71      ng       1248:     function checkSolved(formname,id) {
1.125     ng       1249: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
1.118     ng       1250: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
                   1251: 	    if (!reply) {return "noupdate";}
1.120     ng       1252: 	    formname.overRideScore.value = 'yes';
1.41      ng       1253: 	}
1.71      ng       1254: 	return "update";
1.13      albertel 1255:     }
1.71      ng       1256: 
                   1257:     function updateSelect(formname,id) {
1.125     ng       1258: 	formname["GD_SEL"+id][0].selected = true;
1.71      ng       1259: 	return;
1.41      ng       1260:     }
1.33      ng       1261: 
1.121     ng       1262: //=========== Check that a point is assigned for all the parts  ============
1.71      ng       1263:     function checksubmit(formname,val,total,parttot) {
1.121     ng       1264: 	formname.gradeOpt.value = val;
1.71      ng       1265: 	if (val == "Save & Next") {
                   1266: 	    for (i=0;i<=total;i++) {
                   1267: 		for (j=0;j<parttot;j++) {
1.125     ng       1268: 		    var partid = formname["partid"+i+"_"+j].value;
1.127     ng       1269: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
1.125     ng       1270: 			var points = formname["GD_BOX"+i+"_"+partid].value;
1.71      ng       1271: 			if (points == "") {
1.125     ng       1272: 			    var name = formname["name"+i].value;
1.129     ng       1273: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
                   1274: 			    var resp = confirm("You did not assign a score for "+studentID+
                   1275: 					       ", part "+partid+". Continue?");
1.71      ng       1276: 			    if (resp == false) {
1.125     ng       1277: 				formname["GD_BOX"+i+"_"+partid].focus();
1.71      ng       1278: 				return false;
                   1279: 			    }
                   1280: 			}
                   1281: 		    }
                   1282: 		    
                   1283: 		}
                   1284: 	    }
                   1285: 	    
                   1286: 	}
1.120     ng       1287: 	formname.submit();
                   1288:     }
                   1289: 
1.71      ng       1290: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
                   1291:     function checkSubmitPage(formname,total) {
                   1292: 	noscore = new Array(100);
                   1293: 	var ptr = 0;
                   1294: 	for (i=1;i<total;i++) {
1.125     ng       1295: 	    var partid = formname["q_"+i].value;
1.127     ng       1296: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
1.125     ng       1297: 		var points = formname["GD_BOX"+i+"_"+partid].value;
                   1298: 		var status = formname["solved"+i+"_"+partid].value;
1.71      ng       1299: 		if (points == "" && status != "correct_by_student") {
                   1300: 		    noscore[ptr] = i;
                   1301: 		    ptr++;
                   1302: 		}
                   1303: 	    }
                   1304: 	}
                   1305: 	if (ptr != 0) {
                   1306: 	    var sense = ptr == 1 ? ": " : "s: ";
                   1307: 	    var prolist = "";
                   1308: 	    if (ptr == 1) {
                   1309: 		prolist = noscore[0];
                   1310: 	    } else {
                   1311: 		var i = 0;
                   1312: 		while (i < ptr-1) {
                   1313: 		    prolist += noscore[i]+", ";
                   1314: 		    i++;
                   1315: 		}
                   1316: 		prolist += "and "+noscore[i];
                   1317: 	    }
                   1318: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
                   1319: 	    if (resp == false) {
                   1320: 		return false;
                   1321: 	    }
                   1322: 	}
1.45      ng       1323: 
1.71      ng       1324: 	formname.submit();
                   1325:     }
                   1326: SUBJAVASCRIPT
                   1327: }
1.45      ng       1328: 
1.71      ng       1329: #--- javascript for essay type problem --
                   1330: sub sub_page_kw_js {
                   1331:     my $request = shift;
1.80      ng       1332:     my $iconpath = $request->dir_config('lonIconsURL');
1.118     ng       1333:     &commonJSfunctions($request);
1.350     albertel 1334: 
1.629     www      1335:     my $inner_js_msg_central= (<<INNERJS);
                   1336: <script type="text/javascript">
1.350     albertel 1337:     function checkInput() {
                   1338:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
                   1339:       var nmsg   = opener.document.SCORE.savemsgN.value;
                   1340:       var usrctr = document.msgcenter.usrctr.value;
                   1341:       var newval = opener.document.SCORE["newmsg"+usrctr];
                   1342:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
                   1343: 
                   1344:       var msgchk = "";
                   1345:       if (document.msgcenter.subchk.checked) {
                   1346:          msgchk = "msgsub,";
                   1347:       }
                   1348:       var includemsg = 0;
                   1349:       for (var i=1; i<=nmsg; i++) {
                   1350:           var opnmsg = opener.document.SCORE["savemsg"+i];
                   1351:           var frmmsg = document.msgcenter["msg"+i];
                   1352:           opnmsg.value = opener.checkEntities(frmmsg.value);
                   1353:           var showflg = opener.document.SCORE["shownOnce"+i];
                   1354:           showflg.value = "1";
                   1355:           var chkbox = document.msgcenter["msgn"+i];
                   1356:           if (chkbox.checked) {
                   1357:              msgchk += "savemsg"+i+",";
                   1358:              includemsg = 1;
                   1359:           }
                   1360:       }
                   1361:       if (document.msgcenter.newmsgchk.checked) {
                   1362:          msgchk += "newmsg"+usrctr;
                   1363:          includemsg = 1;
                   1364:       }
                   1365:       imgformname = opener.document.SCORE["mailicon"+usrctr];
                   1366:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
                   1367:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
                   1368:       includemsg.value = msgchk;
                   1369: 
                   1370:       self.close()
                   1371: 
                   1372:     }
1.629     www      1373: </script>
1.350     albertel 1374: INNERJS
                   1375: 
1.629     www      1376:     my $inner_js_highlight_central= (<<INNERJS);
                   1377: <script type="text/javascript">
1.351     albertel 1378:     function updateChoice(flag) {
                   1379:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
                   1380:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
                   1381:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
                   1382:       opener.document.SCORE.refresh.value = "on";
                   1383:       if (opener.document.SCORE.keywords.value!=""){
                   1384:          opener.document.SCORE.submit();
                   1385:       }
                   1386:       self.close()
                   1387:     }
1.629     www      1388: </script>
1.351     albertel 1389: INNERJS
                   1390: 
                   1391:     my $start_page_msg_central = 
                   1392:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
                   1393: 				       {'js_ready'  => 1,
                   1394: 					'only_body' => 1,
                   1395: 					'bgcolor'   =>'#FFFFFF',});
                   1396:     my $end_page_msg_central = 
                   1397: 	&Apache::loncommon::end_page({'js_ready' => 1});
                   1398: 
                   1399: 
                   1400:     my $start_page_highlight_central = 
                   1401:         &Apache::loncommon::start_page('Highlight Central',
                   1402: 				       $inner_js_highlight_central,
1.350     albertel 1403: 				       {'js_ready'  => 1,
                   1404: 					'only_body' => 1,
                   1405: 					'bgcolor'   =>'#FFFFFF',});
1.351     albertel 1406:     my $end_page_highlight_central = 
1.350     albertel 1407: 	&Apache::loncommon::end_page({'js_ready' => 1});
                   1408: 
1.219     www      1409:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
1.236     albertel 1410:     $docopen=~s/^document\.//;
1.539     riegler  1411:     my $alertmsg = &mt('Please select a word or group of words from document and then click this link.');
1.597     wenzelju 1412:     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
1.45      ng       1413: 
1.44      ng       1414: //===================== Show list of keywords ====================
1.122     ng       1415:   function keywords(formname) {
                   1416:     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",formname.keywords.value);
1.44      ng       1417:     if (nret==null) return;
1.122     ng       1418:     formname.keywords.value = nret;
1.44      ng       1419: 
1.122     ng       1420:     if (formname.keywords.value != "") {
1.128     ng       1421: 	formname.refresh.value = "on";
1.122     ng       1422: 	formname.submit();
1.44      ng       1423:     }
                   1424:     return;
                   1425:   }
                   1426: 
                   1427: //===================== Script to view submitted by ==================
                   1428:   function viewSubmitter(submitter) {
                   1429:     document.SCORE.refresh.value = "on";
                   1430:     document.SCORE.NCT.value = "1";
                   1431:     document.SCORE.unamedom0.value = submitter;
                   1432:     document.SCORE.submit();
                   1433:     return;
                   1434:   }
                   1435: 
                   1436: //===================== Script to add keyword(s) ==================
                   1437:   function getSel() {
                   1438:     if (document.getSelection) txt = document.getSelection();
                   1439:     else if (document.selection) txt = document.selection.createRange().text;
                   1440:     else return;
                   1441:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
                   1442:     if (cleantxt=="") {
1.539     riegler  1443: 	alert("$alertmsg");
1.44      ng       1444: 	return;
                   1445:     }
                   1446:     var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
                   1447:     if (nret==null) return;
1.127     ng       1448:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
1.44      ng       1449:     if (document.SCORE.keywords.value != "") {
1.127     ng       1450: 	document.SCORE.refresh.value = "on";
1.44      ng       1451: 	document.SCORE.submit();
                   1452:     }
                   1453:     return;
                   1454:   }
                   1455: 
                   1456: //====================== Script for composing message ==============
1.80      ng       1457:    // preload images
                   1458:    img1 = new Image();
                   1459:    img1.src = "$iconpath/mailbkgrd.gif";
                   1460:    img2 = new Image();
                   1461:    img2.src = "$iconpath/mailto.gif";
                   1462: 
1.44      ng       1463:   function msgCenter(msgform,usrctr,fullname) {
                   1464:     var Nmsg  = msgform.savemsgN.value;
                   1465:     savedMsgHeader(Nmsg,usrctr,fullname);
                   1466:     var subject = msgform.msgsub.value;
1.127     ng       1467:     var msgchk = document.SCORE["includemsg"+usrctr].value;
1.44      ng       1468:     re = /msgsub/;
                   1469:     var shwsel = "";
                   1470:     if (re.test(msgchk)) { shwsel = "checked" }
1.123     ng       1471:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
                   1472:     displaySubject(checkEntities(subject),shwsel);
1.44      ng       1473:     for (var i=1; i<=Nmsg; i++) {
1.123     ng       1474: 	var testmsg = "savemsg"+i+",";
                   1475: 	re = new RegExp(testmsg,"g");
1.44      ng       1476: 	shwsel = "";
                   1477: 	if (re.test(msgchk)) { shwsel = "checked" }
1.125     ng       1478: 	var message = document.SCORE["savemsg"+i].value;
1.126     ng       1479: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
1.123     ng       1480: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
                   1481: 	                                   //any &lt; is already converted to <, etc. However, only once!!
1.44      ng       1482:     }
1.125     ng       1483:     newmsg = document.SCORE["newmsg"+usrctr].value;
1.44      ng       1484:     shwsel = "";
                   1485:     re = /newmsg/;
                   1486:     if (re.test(msgchk)) { shwsel = "checked" }
                   1487:     newMsg(newmsg,shwsel);
                   1488:     msgTail(); 
                   1489:     return;
                   1490:   }
                   1491: 
1.123     ng       1492:   function checkEntities(strx) {
                   1493:     if (strx.length == 0) return strx;
                   1494:     var orgStr = ["&", "<", ">", '"']; 
                   1495:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
                   1496:     var counter = 0;
                   1497:     while (counter < 4) {
                   1498: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
                   1499: 	counter++;
                   1500:     }
                   1501:     return strx;
                   1502:   }
                   1503: 
                   1504:   function strReplace(strx, orgStr, newStr) {
                   1505:     return strx.split(orgStr).join(newStr);
                   1506:   }
                   1507: 
1.44      ng       1508:   function savedMsgHeader(Nmsg,usrctr,fullname) {
1.76      ng       1509:     var height = 70*Nmsg+250;
1.44      ng       1510:     var scrollbar = "no";
                   1511:     if (height > 600) {
                   1512: 	height = 600;
                   1513: 	scrollbar = "yes";
                   1514:     }
1.118     ng       1515:     var xpos = (screen.width-600)/2;
                   1516:     xpos = (xpos < 0) ? '0' : xpos;
                   1517:     var ypos = (screen.height-height)/2-30;
                   1518:     ypos = (ypos < 0) ? '0' : ypos;
                   1519: 
1.647     bisitz   1520:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
1.76      ng       1521:     pWin.focus();
                   1522:     pDoc = pWin.document;
1.219     www      1523:     pDoc.$docopen;
1.351     albertel 1524:     pDoc.write('$start_page_msg_central');
1.76      ng       1525: 
                   1526:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
                   1527:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
1.465     albertel 1528:     pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;Compose Message for \"+fullname+\"<\\/span><\\/h3><br /><br />");
1.76      ng       1529: 
1.564     bisitz   1530:     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
                   1531:     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
1.465     albertel 1532:     pDoc.write("<td><b>Type<\\/b><\\/td><td><b>Include<\\/b><\\/td><td><b>Message<\\/td><\\/tr>");
1.44      ng       1533: }
                   1534:     function displaySubject(msg,shwsel) {
1.76      ng       1535:     pDoc = pWin.document;
                   1536:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
1.465     albertel 1537:     pDoc.write("<td>Subject<\\/td>");
                   1538:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
                   1539:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
1.44      ng       1540: }
                   1541: 
1.72      ng       1542:   function displaySavedMsg(ctr,msg,shwsel) {
1.76      ng       1543:     pDoc = pWin.document;
                   1544:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
1.465     albertel 1545:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
                   1546:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
                   1547:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
1.44      ng       1548: }
                   1549: 
                   1550:   function newMsg(newmsg,shwsel) {
1.76      ng       1551:     pDoc = pWin.document;
                   1552:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
1.465     albertel 1553:     pDoc.write("<td align=\\"center\\">New<\\/td>");
                   1554:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
                   1555:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
1.44      ng       1556: }
                   1557: 
                   1558:   function msgTail() {
1.76      ng       1559:     pDoc = pWin.document;
1.465     albertel 1560:     pDoc.write("<\\/table>");
                   1561:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
1.589     bisitz   1562:     pDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
                   1563:     pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
1.465     albertel 1564:     pDoc.write("<\\/form>");
1.351     albertel 1565:     pDoc.write('$end_page_msg_central');
1.128     ng       1566:     pDoc.close();
1.44      ng       1567: }
                   1568: 
                   1569: //====================== Script for keyword highlight options ==============
                   1570:   function kwhighlight() {
                   1571:     var kwclr    = document.SCORE.kwclr.value;
                   1572:     var kwsize   = document.SCORE.kwsize.value;
                   1573:     var kwstyle  = document.SCORE.kwstyle.value;
                   1574:     var redsel = "";
                   1575:     var grnsel = "";
                   1576:     var blusel = "";
                   1577:     if (kwclr=="red")   {var redsel="checked"};
                   1578:     if (kwclr=="green") {var grnsel="checked"};
                   1579:     if (kwclr=="blue")  {var blusel="checked"};
                   1580:     var sznsel = "";
                   1581:     var sz1sel = "";
                   1582:     var sz2sel = "";
                   1583:     if (kwsize=="0")  {var sznsel="checked"};
                   1584:     if (kwsize=="+1") {var sz1sel="checked"};
                   1585:     if (kwsize=="+2") {var sz2sel="checked"};
                   1586:     var synsel = "";
                   1587:     var syisel = "";
                   1588:     var sybsel = "";
                   1589:     if (kwstyle=="")    {var synsel="checked"};
                   1590:     if (kwstyle=="<i>") {var syisel="checked"};
                   1591:     if (kwstyle=="<b>") {var sybsel="checked"};
                   1592:     highlightCentral();
                   1593:     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
                   1594:     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
                   1595:     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
                   1596:     highlightend();
                   1597:     return;
                   1598:   }
                   1599: 
                   1600:   function highlightCentral() {
1.76      ng       1601: //    if (window.hwdWin) window.hwdWin.close();
1.118     ng       1602:     var xpos = (screen.width-400)/2;
                   1603:     xpos = (xpos < 0) ? '0' : xpos;
                   1604:     var ypos = (screen.height-330)/2-30;
                   1605:     ypos = (ypos < 0) ? '0' : ypos;
                   1606: 
1.206     albertel 1607:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
1.76      ng       1608:     hwdWin.focus();
                   1609:     var hDoc = hwdWin.document;
1.219     www      1610:     hDoc.$docopen;
1.351     albertel 1611:     hDoc.write('$start_page_highlight_central');
1.76      ng       1612:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
1.465     albertel 1613:     hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;Keyword Highlight Options<\\/span><\\/h3><br /><br />");
1.76      ng       1614: 
1.564     bisitz   1615:     hDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
                   1616:     hDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
1.465     albertel 1617:     hDoc.write("<td><b>Text Color<\\/b><\\/td><td><b>Font Size<\\/b><\\/td><td><b>Font Style<\\/td><\\/tr>");
1.44      ng       1618:   }
                   1619: 
                   1620:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
1.76      ng       1621:     var hDoc = hwdWin.document;
                   1622:     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
                   1623:     hDoc.write("<td align=\\"left\\">");
1.465     albertel 1624:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"<\\/td>");
1.76      ng       1625:     hDoc.write("<td align=\\"left\\">");
1.465     albertel 1626:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"<\\/td>");
1.76      ng       1627:     hDoc.write("<td align=\\"left\\">");
1.465     albertel 1628:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"<\\/td>");
                   1629:     hDoc.write("<\\/tr>");
1.44      ng       1630:   }
                   1631: 
                   1632:   function highlightend() { 
1.76      ng       1633:     var hDoc = hwdWin.document;
1.465     albertel 1634:     hDoc.write("<\\/table>");
                   1635:     hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
1.589     bisitz   1636:     hDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
                   1637:     hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
1.465     albertel 1638:     hDoc.write("<\\/form>");
1.351     albertel 1639:     hDoc.write('$end_page_highlight_central');
1.128     ng       1640:     hDoc.close();
1.44      ng       1641:   }
                   1642: 
                   1643: SUBJAVASCRIPT
                   1644: }
                   1645: 
1.349     albertel 1646: sub get_increment {
1.348     bowersj2 1647:     my $increment = $env{'form.increment'};
                   1648:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
                   1649:         $increment != .1) {
                   1650:         $increment = 1;
                   1651:     }
                   1652:     return $increment;
                   1653: }
                   1654: 
1.585     bisitz   1655: sub gradeBox_start {
                   1656:     return (
                   1657:         &Apache::loncommon::start_data_table()
                   1658:        .&Apache::loncommon::start_data_table_header_row()
                   1659:        .'<th>'.&mt('Part').'</th>'
                   1660:        .'<th>'.&mt('Points').'</th>'
                   1661:        .'<th>&nbsp;</th>'
                   1662:        .'<th>'.&mt('Assign Grade').'</th>'
                   1663:        .'<th>'.&mt('Weight').'</th>'
                   1664:        .'<th>'.&mt('Grade Status').'</th>'
                   1665:        .&Apache::loncommon::end_data_table_header_row()
                   1666:     );
                   1667: }
                   1668: 
                   1669: sub gradeBox_end {
                   1670:     return (
                   1671:         &Apache::loncommon::end_data_table()
                   1672:     );
                   1673: }
1.71      ng       1674: #--- displays the grading box, used in essay type problem and grading by page/sequence
                   1675: sub gradeBox {
1.322     albertel 1676:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
1.381     albertel 1677:     my $checkIcon = '<img alt="'.&mt('Check Mark').
1.485     albertel 1678: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
1.71      ng       1679:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
1.466     albertel 1680:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
                   1681:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
1.71      ng       1682:     $wgt       = ($wgt > 0 ? $wgt : '1');
                   1683:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
1.320     albertel 1684: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
1.71      ng       1685:     my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
1.466     albertel 1686:     my $display_part= &get_display_part($partid,$symb);
1.270     albertel 1687:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
                   1688: 				       [$partid]);
                   1689:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
1.269     raeburn  1690:     if ($last_resets{$partid}) {
                   1691:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
                   1692:     }
1.585     bisitz   1693:     $result.=&Apache::loncommon::start_data_table_row();
1.71      ng       1694:     my $ctr = 0;
1.348     bowersj2 1695:     my $thisweight = 0;
1.349     albertel 1696:     my $increment = &get_increment();
1.485     albertel 1697: 
                   1698:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
1.348     bowersj2 1699:     while ($thisweight<=$wgt) {
1.532     bisitz   1700: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
1.589     bisitz   1701:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
1.348     bowersj2 1702: 	    $thisweight.')" value="'.$thisweight.'" '.
1.401     albertel 1703: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
1.485     albertel 1704: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
1.348     bowersj2 1705:         $thisweight += $increment;
1.71      ng       1706: 	$ctr++;
                   1707:     }
1.485     albertel 1708:     $radio.='</tr></table>';
                   1709: 
                   1710:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
1.71      ng       1711: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
1.589     bisitz   1712: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
1.71      ng       1713: 	$wgt.')" /></td>'."\n";
1.485     albertel 1714:     $line.='<td>/'.$wgt.' '.$wgtmsg.
1.71      ng       1715: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
1.585     bisitz   1716: 	' </td>'."\n";
                   1717:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
1.589     bisitz   1718: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
1.71      ng       1719:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
1.485     albertel 1720: 	$line.='<option></option>'.
                   1721: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
1.71      ng       1722:     } else {
1.485     albertel 1723: 	$line.='<option selected="selected"></option>'.
                   1724: 	    '<option value="excused" >'.&mt('excused').'</option>';
1.71      ng       1725:     }
1.485     albertel 1726:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
                   1727: 
                   1728: 
                   1729:     $result .= 
1.585     bisitz   1730: 	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
                   1731:     $result.=&Apache::loncommon::end_data_table_row();
1.71      ng       1732:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
                   1733: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
                   1734: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
1.269     raeburn  1735: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
                   1736:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
                   1737:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
                   1738:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
                   1739:         $aggtries.'" />'."\n";
1.582     raeburn  1740:     my $res_error;
                   1741:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
                   1742:     if ($res_error) {
                   1743:         return &navmap_errormsg();
                   1744:     }
1.318     banghart 1745:     return $result;
                   1746: }
1.322     albertel 1747: 
                   1748: sub handback_box {
1.623     www      1749:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error_pointer) = @_;
                   1750:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error_pointer);
1.323     banghart 1751:     my (@respids);
1.375     albertel 1752:      my @part_response_id = &flatten_responseType($responseType);
                   1753:     foreach my $part_response_id (@part_response_id) {
                   1754:     	my ($part,$resp) = @{ $part_response_id };
1.323     banghart 1755:         if ($part eq $partid) {
1.375     albertel 1756:             push(@respids,$resp);
1.323     banghart 1757:         }
                   1758:     }
1.318     banghart 1759:     my $result;
1.323     banghart 1760:     foreach my $respid (@respids) {
1.322     albertel 1761: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
                   1762: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
                   1763: 	next if (!@$files);
                   1764: 	my $file_counter = 1;
1.313     banghart 1765: 	foreach my $file (@$files) {
1.368     banghart 1766: 	    if ($file =~ /\/portfolio\//) {
                   1767:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
                   1768:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
                   1769:     	        $file_disp = "$name.$ext";
                   1770:     	        $file = $file_path.$file_disp;
                   1771:     	        $result.=&mt('Return commented version of [_1] to student.',
                   1772:     			 '<span class="LC_filename">'.$file_disp.'</span>');
                   1773:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
                   1774:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />';
1.485     albertel 1775:     	        $result.='('.&mt('File will be uploaded when you click on Save &amp; Next below.').')<br />';
1.368     banghart 1776:     	        $file_counter++;
                   1777: 	    }
1.322     albertel 1778: 	}
1.313     banghart 1779:     }
1.318     banghart 1780:     return $result;    
1.71      ng       1781: }
1.44      ng       1782: 
1.58      albertel 1783: sub show_problem {
1.382     albertel 1784:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
1.144     albertel 1785:     my $rendered;
1.382     albertel 1786:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
1.329     albertel 1787:     &Apache::lonxml::remember_problem_counter();
1.144     albertel 1788:     if ($mode eq 'both' or $mode eq 'text') {
                   1789: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
1.382     albertel 1790: 						       $env{'request.course.id'},
                   1791: 						       undef,\%form);
1.144     albertel 1792:     }
1.58      albertel 1793:     if ($removeform) {
                   1794: 	$rendered=~s|<form(.*?)>||g;
                   1795: 	$rendered=~s|</form>||g;
1.374     albertel 1796: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
1.58      albertel 1797:     }
1.144     albertel 1798:     my $companswer;
                   1799:     if ($mode eq 'both' or $mode eq 'answer') {
1.329     albertel 1800: 	&Apache::lonxml::restore_problem_counter();
1.382     albertel 1801: 	$companswer=
                   1802: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
                   1803: 						    $env{'request.course.id'},
                   1804: 						    %form);
1.144     albertel 1805:     }
1.58      albertel 1806:     if ($removeform) {
                   1807: 	$companswer=~s|<form(.*?)>||g;
                   1808: 	$companswer=~s|</form>||g;
1.144     albertel 1809: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
1.58      albertel 1810:     }
1.468     albertel 1811:     $rendered=
1.588     bisitz   1812:         '<div class="LC_Box">'
                   1813:        .'<h3 class="LC_hcell">'.&mt('View of the problem').'</h3>'
                   1814:        .$rendered
                   1815:        .'</div>';
1.468     albertel 1816:     $companswer=
1.588     bisitz   1817:         '<div class="LC_Box">'
                   1818:        .'<h3 class="LC_hcell">'.&mt('Correct answer').'</h3>'
                   1819:        .$companswer
                   1820:        .'</div>';
1.468     albertel 1821:     my $result;
1.144     albertel 1822:     if ($mode eq 'both') {
1.588     bisitz   1823:         $result=$rendered.$companswer;
1.144     albertel 1824:     } elsif ($mode eq 'text') {
1.588     bisitz   1825:         $result=$rendered;
1.144     albertel 1826:     } elsif ($mode eq 'answer') {
1.588     bisitz   1827:         $result=$companswer;
1.144     albertel 1828:     }
1.71      ng       1829:     return $result;
1.58      albertel 1830: }
1.397     albertel 1831: 
1.396     banghart 1832: sub files_exist {
                   1833:     my ($r, $symb) = @_;
                   1834:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
1.397     albertel 1835: 
1.396     banghart 1836:     foreach my $student (@students) {
                   1837:         my ($uname,$udom,$fullname) = split(/:/,$student);
1.397     albertel 1838:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
                   1839: 					      $udom,$uname);
1.396     banghart 1840:         my ($string,$timestamp)= &get_last_submission(\%record);
1.397     albertel 1841:         foreach my $submission (@$string) {
                   1842:             my ($partid,$respid) =
                   1843: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
                   1844:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
                   1845: 					   \%record);
                   1846:             return 1 if (@$files);
1.396     banghart 1847:         }
                   1848:     }
1.397     albertel 1849:     return 0;
1.396     banghart 1850: }
1.397     albertel 1851: 
1.394     banghart 1852: sub download_all_link {
                   1853:     my ($r,$symb) = @_;
1.621     www      1854:     unless (&files_exist($r, $symb)) {
                   1855:        $r->print(&mt('There are currently no submitted documents.'));
                   1856:        return;
                   1857:     }
                   1858: 
1.395     albertel 1859:     my $all_students = 
                   1860: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
                   1861: 
                   1862:     my $parts =
                   1863: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
                   1864: 
1.394     banghart 1865:     my $identifier = &Apache::loncommon::get_cgi_id();
1.514     raeburn  1866:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
                   1867:                              'cgi.'.$identifier.'.symb' => $symb,
                   1868:                              'cgi.'.$identifier.'.parts' => $parts,});
1.395     albertel 1869:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
                   1870: 	      &mt('Download All Submitted Documents').'</a>');
1.621     www      1871:     return;
                   1872: }
                   1873: 
                   1874: sub submit_download_link {
                   1875:     my ($request,$symb) = @_;
                   1876:     if (!$symb) { return ''; }
                   1877: #FIXME: Figure out which type of problem this is and provide appropriate download
                   1878:     &download_all_link($request,$symb);
1.394     banghart 1879: }
1.395     albertel 1880: 
1.432     banghart 1881: sub build_section_inputs {
                   1882:     my $section_inputs;
                   1883:     if ($env{'form.section'} eq '') {
                   1884:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
                   1885:     } else {
                   1886:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
1.434     albertel 1887:         foreach my $section (@sections) {
1.432     banghart 1888:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
                   1889:         }
                   1890:     }
                   1891:     return $section_inputs;
                   1892: }
                   1893: 
1.44      ng       1894: # --------------------------- show submissions of a student, option to grade 
                   1895: sub submission {
1.608     www      1896:     my ($request,$counter,$total,$symb) = @_;
1.257     albertel 1897:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
                   1898:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
                   1899:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
                   1900:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
1.608     www      1901: 
1.605     www      1902:     my $probtitle=&Apache::lonnet::gettitle($symb); 
1.324     albertel 1903:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
1.104     albertel 1904: 
                   1905:     if (!&canview($usec)) {
1.398     albertel 1906: 	$request->print('<span class="LC_warning">Unable to view requested student.('.
                   1907: 			$uname.':'.$udom.' in section '.$usec.' in course id '.
                   1908: 			$env{'request.course.id'}.')</span>');
1.104     albertel 1909: 	return;
                   1910:     }
                   1911: 
1.257     albertel 1912:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
                   1913:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
                   1914:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
                   1915:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
1.381     albertel 1916:     my $checkIcon = '<img alt="'.&mt('Check Mark').
                   1917: 	'" src="'.$request->dir_config('lonIconsURL').
1.122     ng       1918: 	'/check.gif" height="16" border="0" />';
1.41      ng       1919: 
1.426     albertel 1920:     my %old_essays;
1.41      ng       1921:     # header info
                   1922:     if ($counter == 0) {
                   1923: 	&sub_page_js($request);
1.621     www      1924: 	&sub_page_kw_js($request);
1.118     ng       1925: 
1.44      ng       1926: 	# option to display problem, only once else it cause problems 
                   1927:         # with the form later since the problem has a form.
1.257     albertel 1928: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
1.144     albertel 1929: 	    my $mode;
1.257     albertel 1930: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
1.144     albertel 1931: 		$mode='both';
1.257     albertel 1932: 	    } elsif ($env{'form.vProb'} eq 'yes') {
1.144     albertel 1933: 		$mode='text';
1.257     albertel 1934: 	    } elsif ($env{'form.vAns'} eq 'yes') {
1.144     albertel 1935: 		$mode='answer';
                   1936: 	    }
1.329     albertel 1937: 	    &Apache::lonxml::clear_problem_counter();
1.144     albertel 1938: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
1.41      ng       1939: 	}
1.441     www      1940: 
1.44      ng       1941: 	# kwclr is the only variable that is guaranteed to be non blank 
                   1942:         # if this subroutine has been called once.
1.41      ng       1943: 	my %keyhash = ();
1.624     www      1944: #	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
                   1945:         if (1) {
1.41      ng       1946: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
1.257     albertel 1947: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
                   1948: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
1.41      ng       1949: 
1.257     albertel 1950: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
                   1951: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
                   1952: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
                   1953: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
                   1954: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
                   1955: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
1.605     www      1956: 		$keyhash{$symb.'_subject'} : $probtitle;
1.257     albertel 1957: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
1.41      ng       1958: 	}
1.257     albertel 1959: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
1.442     banghart 1960: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
1.303     banghart 1961: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
1.41      ng       1962: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
1.442     banghart 1963: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
1.120     ng       1964: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
1.41      ng       1965: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
1.120     ng       1966: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
                   1967: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
1.418     albertel 1968: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
1.257     albertel 1969: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
                   1970: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
                   1971: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
1.432     banghart 1972: 			&build_section_inputs().
1.326     albertel 1973: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
1.41      ng       1974: 			'<input type="hidden" name="NCT"'.
1.257     albertel 1975: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
1.624     www      1976: #	if ($env{'form.handgrade'} eq 'yes') {
                   1977:         if (1) {
1.257     albertel 1978: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
                   1979: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
                   1980: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
                   1981: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
                   1982: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
1.123     ng       1983: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
1.257     albertel 1984: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
1.154     albertel 1985: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
                   1986: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
                   1987: 	    }
1.123     ng       1988: 	}
1.41      ng       1989: 	
                   1990: 	my ($cts,$prnmsg) = (1,'');
1.257     albertel 1991: 	while ($cts <= $env{'form.savemsgN'}) {
1.41      ng       1992: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
1.123     ng       1993: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
1.257     albertel 1994: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
1.80      ng       1995: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
1.123     ng       1996: 		'" />'."\n".
                   1997: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
1.41      ng       1998: 	    $cts++;
                   1999: 	}
                   2000: 	$request->print($prnmsg);
1.32      ng       2001: 
1.624     www      2002: #	if ($env{'form.handgrade'} eq 'yes') {
                   2003:         if (1) {
1.88      www      2004: #
                   2005: # Print out the keyword options line
                   2006: #
1.41      ng       2007: 	    $request->print(<<KEYWORDS);
1.38      ng       2008: &nbsp;<b>Keyword Options:</b>&nbsp;
1.417     albertel 2009: <a href="javascript:keywords(document.SCORE);" target="_self">List</a>&nbsp; &nbsp;
1.589     bisitz   2010: <a href="#" onmousedown="javascript:getSel(); return false"
1.38      ng       2011:  CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
1.417     albertel 2012: <a href="javascript:kwhighlight();" target="_self">Highlight Attribute</a><br /><br />
1.38      ng       2013: KEYWORDS
1.88      www      2014: #
                   2015: # Load the other essays for similarity check
                   2016: #
1.324     albertel 2017:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
1.384     albertel 2018: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
1.359     www      2019: 	    $apath=&escape($apath);
1.88      www      2020: 	    $apath=~s/\W/\_/gs;
1.426     albertel 2021: 	    %old_essays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
1.41      ng       2022:         }
                   2023:     }
1.44      ng       2024: 
1.441     www      2025: # This is where output for one specific student would start
1.592     bisitz   2026:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
                   2027:     $request->print(
                   2028:         "\n\n"
                   2029:        .'<div class="LC_grade_show_user'.$add_class.'">'
                   2030:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
                   2031:        ."\n"
                   2032:     );
1.441     www      2033: 
1.592     bisitz   2034:     # Show additional functions if allowed
                   2035:     if ($perm{'vgr'}) {
                   2036:         $request->print(
                   2037:             &Apache::loncommon::track_student_link(
                   2038:                 &mt('View recent activity'),
                   2039:                 $uname,$udom,'check')
                   2040:            .' '
                   2041:         );
                   2042:     }
                   2043:     if ($perm{'opa'}) {
                   2044:         $request->print(
                   2045:             &Apache::loncommon::pprmlink(
                   2046:                 &mt('Set/Change parameters'),
                   2047:                 $uname,$udom,$symb,'check'));
                   2048:     }
                   2049: 
                   2050:     # Show Problem
1.257     albertel 2051:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
1.144     albertel 2052: 	my $mode;
1.257     albertel 2053: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
1.144     albertel 2054: 	    $mode='both';
1.257     albertel 2055: 	} elsif ($env{'form.vProb'} eq 'all' ) {
1.144     albertel 2056: 	    $mode='text';
1.257     albertel 2057: 	} elsif ($env{'form.vAns'} eq 'all') {
1.144     albertel 2058: 	    $mode='answer';
                   2059: 	}
1.329     albertel 2060: 	&Apache::lonxml::clear_problem_counter();
1.475     albertel 2061: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
1.58      albertel 2062:     }
1.144     albertel 2063: 
1.257     albertel 2064:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
1.582     raeburn  2065:     my $res_error;
                   2066:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
                   2067:     if ($res_error) {
                   2068:         $request->print(&navmap_errormsg());
                   2069:         return;
                   2070:     }
1.41      ng       2071: 
1.44      ng       2072:     # Display student info
1.41      ng       2073:     $request->print(($counter == 0 ? '' : '<br />'));
1.590     bisitz   2074: 
                   2075:     my $result='<div class="LC_Box">'
                   2076:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
1.45      ng       2077:     $result.='<input type="hidden" name="name'.$counter.
1.588     bisitz   2078:              '" value="'.$env{'form.fullname'}.'" />'."\n";
1.624     www      2079: #    if ($env{'form.handgrade'} eq 'no') {
                   2080:     if (1) {
1.588     bisitz   2081:         $result.='<p class="LC_info">'
                   2082:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
                   2083:                 ."</p>\n";
1.469     albertel 2084:     }
                   2085: 
1.118     ng       2086:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
1.464     albertel 2087:     my $fullname;
                   2088:     my $col_fullnames = [];
1.624     www      2089: #    if ($env{'form.handgrade'} eq 'yes') {
                   2090:     if (1) {
1.464     albertel 2091: 	(my $sub_result,$fullname,$col_fullnames)=
                   2092: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
                   2093: 				 $counter);
                   2094: 	$result.=$sub_result;
1.41      ng       2095:     }
1.44      ng       2096:     $request->print($result."\n");
1.588     bisitz   2097: 
1.44      ng       2098:     # print student answer/submission
1.588     bisitz   2099:     # Options are (1) Handgraded submission only
1.44      ng       2100:     #             (2) Last submission, includes submission that is not handgraded 
                   2101:     #                  (for multi-response type part)
                   2102:     #             (3) Last submission plus the parts info
                   2103:     #             (4) The whole record for this student
1.257     albertel 2104:     if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
1.151     albertel 2105: 	my ($string,$timestamp)= &get_last_submission(\%record);
1.468     albertel 2106: 	
                   2107: 	my $lastsubonly;
                   2108: 
1.588     bisitz   2109:         if ($$timestamp eq '') {
                   2110:             $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
                   2111:         } else {
1.592     bisitz   2112:             $lastsubonly =
                   2113:                 '<div class="LC_grade_submissions_body">'
                   2114:                .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
1.468     albertel 2115: 
1.151     albertel 2116: 	    my %seenparts;
1.375     albertel 2117: 	    my @part_response_id = &flatten_responseType($responseType);
                   2118: 	    foreach my $part (@part_response_id) {
1.393     albertel 2119: 		next if ($env{'form.lastSub'} eq 'hdgrade' 
                   2120: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
                   2121: 
1.375     albertel 2122: 		my ($partid,$respid) = @{ $part };
1.324     albertel 2123: 		my $display_part=&get_display_part($partid,$symb);
1.257     albertel 2124: 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
1.151     albertel 2125: 		    if (exists($seenparts{$partid})) { next; }
                   2126: 		    $seenparts{$partid}=1;
1.207     albertel 2127: 		    my $submitby='<b>Part:</b> '.$display_part.
                   2128: 			' <b>Collaborative submission by:</b> '.
1.151     albertel 2129: 			'<a href="javascript:viewSubmitter(\''.
1.257     albertel 2130: 			$env{"form.$uname:$udom:$partid:submitted_by"}.
1.417     albertel 2131: 			'\');" target="_self">'.
1.257     albertel 2132: 			$$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
1.151     albertel 2133: 		    $request->print($submitby);
                   2134: 		    next;
                   2135: 		}
                   2136: 		my $responsetype = $responseType->{$partid}->{$respid};
                   2137: 		if (!exists($record{"resource.$partid.$respid.submission"})) {
1.577     bisitz   2138:                     $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
                   2139:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
                   2140:                         ' <span class="LC_internal_info">'.
1.623     www      2141:                         '('.&mt('Response ID: [_1]',$respid).')'.
1.577     bisitz   2142:                         '</span>&nbsp; &nbsp;'.
1.539     riegler  2143: 			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
1.151     albertel 2144: 		    next;
                   2145: 		}
1.468     albertel 2146: 		foreach my $submission (@$string) {
                   2147: 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
1.375     albertel 2148: 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
1.596     raeburn  2149: 		    my ($ressub,$hide,$subval) = split(/:/,$submission,3);
1.151     albertel 2150: 		    # Similarity check
                   2151: 		    my $similar='';
1.640     raeburn  2152:                     my ($type,$trial,$rndseed);
                   2153:                     if ($hide eq 'rand') {
                   2154:                         $type = 'randomizetry';
                   2155:                         $trial = $record{"resource.$partid.tries"};
                   2156:                         $rndseed = $record{"resource.$partid.rndseed"};
                   2157:                     }
1.257     albertel 2158: 		    if($env{'form.checkPlag'}){
1.151     albertel 2159: 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
1.426     albertel 2160: 			    &most_similar($uname,$udom,$subval,\%old_essays);
1.151     albertel 2161: 			if ($osim) {
                   2162: 			    $osim=int($osim*100.0);
1.426     albertel 2163: 			    my %old_course_desc = 
                   2164: 				&Apache::lonnet::coursedescription($ocrsid,
                   2165: 								   {'one_time' => 1});
                   2166: 
1.640     raeburn  2167:                             if ($hide eq 'anon') {
1.596     raeburn  2168:                                 $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
                   2169:                                          &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
                   2170:                             } else {
                   2171: 			        $similar="<hr /><h3><span class=\"LC_warning\">".
                   2172: 				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
                   2173: 				        $osim,
                   2174: 				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
                   2175: 				        $old_course_desc{'description'},
                   2176: 				        $old_course_desc{'num'},
                   2177: 				        $old_course_desc{'domain'}).
                   2178: 				    '</span></h3><blockquote><i>'.
                   2179: 				    &keywords_highlight($oessay).
                   2180: 				    '</i></blockquote><hr />';
                   2181:                             }
1.151     albertel 2182: 			}
1.150     albertel 2183: 		    }
1.640     raeburn  2184: 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
                   2185:                                          undef,$type,$trial,$rndseed);
1.257     albertel 2186: 		    if ($env{'form.lastSub'} eq 'lastonly' || 
                   2187: 			($env{'form.lastSub'} eq 'hdgrade' && 
1.377     albertel 2188: 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
1.324     albertel 2189: 			my $display_part=&get_display_part($partid,$symb);
1.577     bisitz   2190:                         $lastsubonly.='<div class="LC_grade_submission_part">'.
                   2191:                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
                   2192:                             ' <span class="LC_internal_info">'.
1.623     www      2193:                             '('.&mt('Response ID: [_1]',$respid).')'.
1.597     wenzelju 2194:                             '</span>&nbsp; &nbsp;';
1.313     banghart 2195: 			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
                   2196: 			if (@$files) {
1.640     raeburn  2197:                             if ($hide eq 'anon') {
1.596     raeburn  2198:                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
                   2199:                             } else {
                   2200:                                 $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
                   2201:                                 foreach my $file (@$files) {
                   2202:                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
                   2203:                                     $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" /> '.$file.'</a>';
                   2204:                                 }
                   2205:                             }
1.236     albertel 2206: 			    $lastsubonly.='<br />';
1.41      ng       2207: 			}
1.640     raeburn  2208:                         if ($hide eq 'anon') {
1.596     raeburn  2209:                             $lastsubonly.='<b>'.&mt('Anonymous Survey').'</b>'; 
                   2210:                         } else {
                   2211: 			    $lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
                   2212: 			        &cleanRecord($subval,$responsetype,$symb,$partid,
1.640     raeburn  2213: 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
1.596     raeburn  2214:                         }
1.151     albertel 2215: 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
1.468     albertel 2216: 			$lastsubonly.='</div>';
1.41      ng       2217: 		    }
                   2218: 		}
                   2219: 	    }
1.588     bisitz   2220: 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
1.151     albertel 2221: 	}
                   2222: 	$request->print($lastsubonly);
1.468     albertel 2223:    } elsif ($env{'form.lastSub'} eq 'datesub') {
1.623     www      2224:         my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
1.148     albertel 2225: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
1.257     albertel 2226:     } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
1.41      ng       2227: 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
1.257     albertel 2228: 								 $env{'request.course.id'},
1.44      ng       2229: 								 $last,'.submission',
                   2230: 								 'Apache::grades::keywords_highlight'));
1.41      ng       2231:     }
1.121     ng       2232:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
                   2233: 	.$udom.'" />'."\n");
1.44      ng       2234:     # return if view submission with no grading option
1.618     www      2235:     if (!&canmodify($usec)) {
1.633     www      2236: 	$request->print('<p><span class="LC_warning">'.&mt('No grading privileges').'</span></p></div>');
1.41      ng       2237: 	return;
1.180     albertel 2238:     } else {
1.468     albertel 2239: 	$request->print('</div>'."\n");
1.41      ng       2240:     }
1.33      ng       2241: 
1.121     ng       2242:     # essay grading message center
1.624     www      2243: #    if ($env{'form.handgrade'} eq 'yes') {
                   2244:     if (1) {
1.468     albertel 2245: 	my $result='<div class="LC_grade_message_center">';
                   2246:     
                   2247: 	$result.='<div class="LC_grade_message_center_header">'.
                   2248: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
1.257     albertel 2249: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
1.118     ng       2250: 	my $msgfor = $givenn.' '.$lastname;
1.464     albertel 2251: 	if (scalar(@$col_fullnames) > 0) {
                   2252: 	    my $lastone = pop(@$col_fullnames);
                   2253: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
1.118     ng       2254: 	}
                   2255: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
1.468     albertel 2256: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
1.121     ng       2257: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
                   2258: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
1.417     albertel 2259: 	    ',\''.$msgfor.'\');" target="_self">'.
1.464     albertel 2260: 	    &mt('Compose message to student').(scalar(@$col_fullnames) >= 1 ? 's' : '').'</a><label> ('.
1.350     albertel 2261: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
1.118     ng       2262: 	    '<img src="'.$request->dir_config('lonIconsURL').
                   2263: 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
1.298     www      2264: 	    '<br />&nbsp;('.
1.468     albertel 2265: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
                   2266: 	$result.='</div></div>';
1.121     ng       2267: 	$request->print($result);
1.118     ng       2268:     }
1.41      ng       2269: 
                   2270:     my %seen = ();
                   2271:     my @partlist;
1.129     ng       2272:     my @gradePartRespid;
1.375     albertel 2273:     my @part_response_id = &flatten_responseType($responseType);
1.585     bisitz   2274:     $request->print(
1.588     bisitz   2275:         '<div class="LC_Box">'
                   2276:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
1.585     bisitz   2277:     );
1.592     bisitz   2278:     $request->print(&gradeBox_start());
1.375     albertel 2279:     foreach my $part_response_id (@part_response_id) {
                   2280:     	my ($partid,$respid) = @{ $part_response_id };
                   2281: 	my $part_resp = join('_',@{ $part_response_id });
1.322     albertel 2282: 	next if ($seen{$partid} > 0);
1.41      ng       2283: 	$seen{$partid}++;
1.393     albertel 2284: 	next if ($$handgrade{$part_resp} ne 'yes' 
                   2285: 		 && $env{'form.lastSub'} eq 'hdgrade');
1.524     raeburn  2286: 	push(@partlist,$partid);
                   2287: 	push(@gradePartRespid,$partid.'.'.$respid);
1.322     albertel 2288: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
1.41      ng       2289:     }
1.585     bisitz   2290:     $request->print(&gradeBox_end()); # </div>
                   2291:     $request->print('</div>');
1.468     albertel 2292: 
                   2293:     $request->print('<div class="LC_grade_info_links">');
                   2294:     $request->print('</div>');
                   2295: 
1.45      ng       2296:     $result='<input type="hidden" name="partlist'.$counter.
                   2297: 	'" value="'.(join ":",@partlist).'" />'."\n";
1.129     ng       2298:     $result.='<input type="hidden" name="gradePartRespid'.
                   2299: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
1.45      ng       2300:     my $ctr = 0;
                   2301:     while ($ctr < scalar(@partlist)) {
                   2302: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
                   2303: 	    $partlist[$ctr].'" />'."\n";
                   2304: 	$ctr++;
                   2305:     }
1.468     albertel 2306:     $request->print($result.''."\n");
1.41      ng       2307: 
1.441     www      2308: # Done with printing info for one student
                   2309: 
1.468     albertel 2310:     $request->print('</div>');#LC_grade_show_user
1.441     www      2311: 
                   2312: 
1.41      ng       2313:     # print end of form
                   2314:     if ($counter == $total) {
1.592     bisitz   2315:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
1.485     albertel 2316: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
1.589     bisitz   2317: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
1.417     albertel 2318: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
1.119     ng       2319: 	my $ntstu ='<select name="NTSTU">'.
                   2320: 	    '<option>1</option><option>2</option>'.
                   2321: 	    '<option>3</option><option>5</option>'.
                   2322: 	    '<option>7</option><option>10</option></select>'."\n";
1.257     albertel 2323: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
1.401     albertel 2324: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
1.578     raeburn  2325:         $endform.=&mt('[_1]student(s)',$ntstu);
1.485     albertel 2326: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
1.589     bisitz   2327: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
1.485     albertel 2328: 	    '<input type="button" value="'.&mt('Next').'" '.
1.589     bisitz   2329: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
1.592     bisitz   2330:         $endform.='<span class="LC_warning">'.
                   2331:                   &mt('(Next and Previous (student) do not save the scores.)').
                   2332:                   '</span>'."\n" ;
1.349     albertel 2333:         $endform.="<input type='hidden' value='".&get_increment().
1.348     bowersj2 2334:             "' name='increment' />";
1.485     albertel 2335: 	$endform.='</td></tr></table></form>';
1.41      ng       2336: 	$request->print($endform);
                   2337:     }
                   2338:     return '';
1.38      ng       2339: }
                   2340: 
1.464     albertel 2341: sub check_collaborators {
                   2342:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
                   2343:     my ($result,@col_fullnames);
                   2344:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
                   2345:     foreach my $part (keys(%$handgrade)) {
                   2346: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
                   2347: 					'.maxcollaborators',
                   2348: 					$symb,$udom,$uname);
                   2349: 	next if ($ncol <= 0);
                   2350: 	$part =~ s/\_/\./g;
                   2351: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
                   2352: 	my (@good_collaborators, @bad_collaborators);
                   2353: 	foreach my $possible_collaborator
1.630     www      2354: 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) { 
1.464     albertel 2355: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
                   2356: 	    next if ($possible_collaborator eq '');
1.631     www      2357: 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
1.464     albertel 2358: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
                   2359: 	    next if ($co_name eq $uname && $co_dom eq $udom);
                   2360: 	    # Doing this grep allows 'fuzzy' specification
                   2361: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
                   2362: 			       keys(%$classlist));
                   2363: 	    if (! scalar(@matches)) {
                   2364: 		push(@bad_collaborators, $possible_collaborator);
                   2365: 	    } else {
                   2366: 		push(@good_collaborators, @matches);
                   2367: 	    }
                   2368: 	}
                   2369: 	if (scalar(@good_collaborators) != 0) {
1.630     www      2370: 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
1.464     albertel 2371: 	    foreach my $name (@good_collaborators) {
                   2372: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
                   2373: 		push(@col_fullnames, $givenn.' '.$lastname);
1.630     www      2374: 		$result.='<li>'.$fullname->{$name}.'</li>';
1.464     albertel 2375: 	    }
1.630     www      2376: 	    $result.='</ol><br />'."\n";
1.466     albertel 2377: 	    my ($part)=split(/\./,$part);
1.464     albertel 2378: 	    $result.='<input type="hidden" name="collaborator'.$counter.
                   2379: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
                   2380: 		"\n";
                   2381: 	}
                   2382: 	if (scalar(@bad_collaborators) > 0) {
1.466     albertel 2383: 	    $result.='<div class="LC_warning">';
1.464     albertel 2384: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
                   2385: 	    $result .= '</div>';
                   2386: 	}         
                   2387: 	if (scalar(@bad_collaborators > $ncol)) {
1.466     albertel 2388: 	    $result .= '<div class="LC_warning">';
1.464     albertel 2389: 	    $result .= &mt('This student has submitted too many '.
                   2390: 		'collaborators.  Maximum is [_1].',$ncol);
                   2391: 	    $result .= '</div>';
                   2392: 	}
                   2393:     }
                   2394:     return ($result,$fullname,\@col_fullnames);
                   2395: }
                   2396: 
1.44      ng       2397: #--- Retrieve the last submission for all the parts
1.38      ng       2398: sub get_last_submission {
1.119     ng       2399:     my ($returnhash)=@_;
1.596     raeburn  2400:     my (@string,$timestamp,%lasthidden);
1.119     ng       2401:     if ($$returnhash{'version'}) {
1.46      ng       2402: 	my %lasthash=();
                   2403: 	my ($version);
1.119     ng       2404: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
1.397     albertel 2405: 	    foreach my $key (sort(split(/\:/,
                   2406: 					$$returnhash{$version.':keys'}))) {
                   2407: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
                   2408: 		$timestamp = 
1.545     raeburn  2409: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
1.46      ng       2410: 	    }
                   2411: 	}
1.640     raeburn  2412:         my (%typeparts,%randombytry);
1.596     raeburn  2413:         my $showsurv = 
                   2414:             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
                   2415:         foreach my $key (sort(keys(%lasthash))) {
                   2416:             if ($key =~ /\.type$/) {
                   2417:                 if (($lasthash{$key} eq 'anonsurvey') || 
1.640     raeburn  2418:                     ($lasthash{$key} eq 'anonsurveycred') ||
                   2419:                     ($lasthash{$key} eq 'randomizetry')) {
1.596     raeburn  2420:                     my ($ign,@parts) = split(/\./,$key);
                   2421:                     pop(@parts);
1.641     raeburn  2422:                     my $id = join('.',@parts);
1.640     raeburn  2423:                     if ($lasthash{$key} eq 'randomizetry') {
                   2424:                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
                   2425:                     } else {
                   2426:                         unless ($showsurv) {
                   2427:                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
                   2428:                         }
1.596     raeburn  2429:                     }
                   2430:                     delete($lasthash{$key});
                   2431:                 }
                   2432:             }
                   2433:         }
                   2434:         my @hidden = keys(%typeparts);
1.640     raeburn  2435:         my @randomize = keys(%randombytry);
1.397     albertel 2436: 	foreach my $key (keys(%lasthash)) {
                   2437: 	    next if ($key !~ /\.submission$/);
1.596     raeburn  2438:             my $hide;
                   2439:             if (@hidden) {
                   2440:                 foreach my $id (@hidden) {
                   2441:                     if ($key =~ /^\Q$id\E/) {
1.640     raeburn  2442:                         $hide = 'anon';
1.596     raeburn  2443:                         last;
                   2444:                     }
                   2445:                 }
                   2446:             }
1.640     raeburn  2447:             unless ($hide) {
                   2448:                 if (@randomize) {
                   2449:                     foreach my $id (@hidden) {
                   2450:                         if ($key =~ /^\Q$id\E/) {
                   2451:                             $hide = 'rand';
                   2452:                             last;
                   2453:                         }
                   2454:                     }
                   2455:                 }
                   2456:             }
1.397     albertel 2457: 	    my ($partid,$foo) = split(/submission$/,$key);
                   2458: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
1.398     albertel 2459: 		'<span class="LC_warning">Draft Copy</span> ' : '';
1.596     raeburn  2460: 	    push(@string, join(':', $key, $hide, $draft.$lasthash{$key}));
1.41      ng       2461: 	}
                   2462:     }
1.397     albertel 2463:     if (!@string) {
                   2464: 	$string[0] =
1.539     riegler  2465: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
1.397     albertel 2466:     }
                   2467:     return (\@string,\$timestamp);
1.38      ng       2468: }
1.35      ng       2469: 
1.44      ng       2470: #--- High light keywords, with style choosen by user.
1.38      ng       2471: sub keywords_highlight {
1.44      ng       2472:     my $string    = shift;
1.257     albertel 2473:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
                   2474:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
1.41      ng       2475:     (my $styleoff = $styleon) =~ s/\</\<\//;
1.257     albertel 2476:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
1.398     albertel 2477:     foreach my $keyword (@keylist) {
                   2478: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
1.41      ng       2479:     }
                   2480:     return $string;
1.38      ng       2481: }
1.36      ng       2482: 
1.44      ng       2483: #--- Called from submission routine
1.38      ng       2484: sub processHandGrade {
1.608     www      2485:     my ($request,$symb) = @_;
1.324     albertel 2486:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
1.257     albertel 2487:     my $button = $env{'form.gradeOpt'};
                   2488:     my $ngrade = $env{'form.NCT'};
                   2489:     my $ntstu  = $env{'form.NTSTU'};
1.301     albertel 2490:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
                   2491:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
                   2492: 
1.44      ng       2493:     if ($button eq 'Save & Next') {
                   2494: 	my $ctr = 0;
                   2495: 	while ($ctr < $ngrade) {
1.257     albertel 2496: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
1.324     albertel 2497: 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$symb,$uname,$udom,$ctr);
1.71      ng       2498: 	    if ($errorflag eq 'no_score') {
                   2499: 		$ctr++;
                   2500: 		next;
                   2501: 	    }
1.104     albertel 2502: 	    if ($errorflag eq 'not_allowed') {
1.398     albertel 2503: 		$request->print("<span class=\"LC_warning\">Not allowed to modify grades for $uname:$udom</span>");
1.104     albertel 2504: 		$ctr++;
                   2505: 		next;
                   2506: 	    }
1.257     albertel 2507: 	    my $includemsg = $env{'form.includemsg'.$ctr};
1.44      ng       2508: 	    my ($subject,$message,$msgstatus) = ('','','');
1.418     albertel 2509: 	    my $restitle = &Apache::lonnet::gettitle($symb);
                   2510:             my ($feedurl,$showsymb) =
                   2511: 		&get_feedurl_and_symb($symb,$uname,$udom);
                   2512: 	    my $messagetail;
1.62      albertel 2513: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
1.298     www      2514: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
1.295     www      2515: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
1.386     raeburn  2516: 		$subject.=' ['.$restitle.']';
1.44      ng       2517: 		my (@msgnum) = split(/,/,$includemsg);
                   2518: 		foreach (@msgnum) {
1.257     albertel 2519: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
1.44      ng       2520: 		}
1.80      ng       2521: 		$message =&Apache::lonfeedback::clear_out_html($message);
1.298     www      2522: 		if ($env{'form.withgrades'.$ctr}) {
                   2523: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
1.386     raeburn  2524: 		    $messagetail = " for <a href=\"".
1.605     www      2525: 		                   $feedurl."?symb=$showsymb\">$restitle</a>";
1.386     raeburn  2526: 		}
                   2527: 		$msgstatus = 
                   2528:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
                   2529: 						     $message.$messagetail,
1.418     albertel 2530:                                                      undef,$feedurl,undef,
1.386     raeburn  2531:                                                      undef,undef,$showsymb,
                   2532:                                                      $restitle);
1.574     bisitz   2533: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
1.296     www      2534: 				$msgstatus);
1.44      ng       2535: 	    }
1.257     albertel 2536: 	    if ($env{'form.collaborator'.$ctr}) {
1.155     albertel 2537: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
1.150     albertel 2538: 		foreach my $collabstr (@collabstrs) {
                   2539: 		    my ($part,@collaborators) = split(/:/,$collabstr);
1.310     banghart 2540: 		    foreach my $collaborator (@collaborators) {
1.150     albertel 2541: 			my ($errorflag,$pts,$wgt) = 
1.324     albertel 2542: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
1.257     albertel 2543: 					   $env{'form.unamedom'.$ctr},$part);
1.150     albertel 2544: 			if ($errorflag eq 'not_allowed') {
1.362     albertel 2545: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
1.150     albertel 2546: 			    next;
1.418     albertel 2547: 			} elsif ($message ne '') {
                   2548: 			    my ($baseurl,$showsymb) = 
                   2549: 				&get_feedurl_and_symb($symb,$collaborator,
                   2550: 						      $udom);
                   2551: 			    if ($env{'form.withgrades'.$ctr}) {
                   2552: 				$messagetail = " for <a href=\"".
1.605     www      2553:                                     $baseurl."?symb=$showsymb\">$restitle</a>";
1.150     albertel 2554: 			    }
1.418     albertel 2555: 			    $msgstatus = 
                   2556: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
1.104     albertel 2557: 			}
1.44      ng       2558: 		    }
                   2559: 		}
                   2560: 	    }
                   2561: 	    $ctr++;
                   2562: 	}
                   2563:     }
                   2564: 
1.624     www      2565: #    if ($env{'form.handgrade'} eq 'yes') {
                   2566:     if (1) {
1.119     ng       2567: 	# Keywords sorted in alphabatical order
1.257     albertel 2568: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
1.119     ng       2569: 	my %keyhash = ();
1.257     albertel 2570: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
                   2571: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
                   2572: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
                   2573: 	$env{'form.keywords'} = join(' ',@keywords);
                   2574: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
                   2575: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
                   2576: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
                   2577: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
                   2578: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
1.119     ng       2579: 
                   2580: 	# message center - Order of message gets changed. Blank line is eliminated.
1.257     albertel 2581: 	# New messages are saved in env for the next student.
1.119     ng       2582: 	# All messages are saved in nohist_handgrade.db
                   2583: 	my ($ctr,$idx) = (1,1);
1.257     albertel 2584: 	while ($ctr <= $env{'form.savemsgN'}) {
                   2585: 	    if ($env{'form.savemsg'.$ctr} ne '') {
                   2586: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
1.119     ng       2587: 		$idx++;
                   2588: 	    }
                   2589: 	    $ctr++;
1.41      ng       2590: 	}
1.119     ng       2591: 	$ctr = 0;
                   2592: 	while ($ctr < $ngrade) {
1.257     albertel 2593: 	    if ($env{'form.newmsg'.$ctr} ne '') {
                   2594: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
                   2595: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
1.119     ng       2596: 		$idx++;
                   2597: 	    }
                   2598: 	    $ctr++;
1.41      ng       2599: 	}
1.257     albertel 2600: 	$env{'form.savemsgN'} = --$idx;
                   2601: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
1.119     ng       2602: 	my $putresult = &Apache::lonnet::put
1.301     albertel 2603: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
1.41      ng       2604:     }
1.44      ng       2605:     # Called by Save & Refresh from Highlight Attribute Window
1.257     albertel 2606:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
                   2607:     if ($env{'form.refresh'} eq 'on') {
1.86      ng       2608: 	my ($ctr,$total) = (0,0);
                   2609: 	while ($ctr < $ngrade) {
1.257     albertel 2610: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
1.86      ng       2611: 	    $ctr++;
                   2612: 	}
1.257     albertel 2613: 	$env{'form.NTSTU'}=$ngrade;
1.86      ng       2614: 	$ctr = 0;
                   2615: 	while ($ctr < $total) {
1.257     albertel 2616: 	    my $processUser = $env{'form.unamedom'.$ctr};
                   2617: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
                   2618: 	    $env{'form.fullname'} = $$fullname{$processUser};
1.625     www      2619: 	    &submission($request,$ctr,$total-1,$symb);
1.41      ng       2620: 	    $ctr++;
                   2621: 	}
                   2622: 	return '';
                   2623:     }
1.36      ng       2624: 
1.44      ng       2625:     # Get the next/previous one or group of students
1.257     albertel 2626:     my $firststu = $env{'form.unamedom0'};
                   2627:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
1.119     ng       2628:     my $ctr = 2;
1.41      ng       2629:     while ($laststu eq '') {
1.257     albertel 2630: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
1.41      ng       2631: 	$ctr++;
                   2632: 	$laststu = $firststu if ($ctr > $ngrade);
                   2633:     }
1.44      ng       2634: 
1.41      ng       2635:     my (@parsedlist,@nextlist);
                   2636:     my ($nextflg) = 0;
1.524     raeburn  2637:     foreach my $item (sort 
1.294     albertel 2638: 	     {
                   2639: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
                   2640: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
                   2641: 		 }
                   2642: 		 return $a cmp $b;
                   2643: 	     } (keys(%$fullname))) {
1.605     www      2644: # FIXME: this is fishy, looks like the button label
1.41      ng       2645: 	if ($nextflg == 1 && $button =~ /Next$/) {
1.524     raeburn  2646: 	    push(@parsedlist,$item);
1.41      ng       2647: 	}
1.524     raeburn  2648: 	$nextflg = 1 if ($item eq $laststu);
1.41      ng       2649: 	if ($button eq 'Previous') {
1.524     raeburn  2650: 	    last if ($item eq $firststu);
                   2651: 	    push(@parsedlist,$item);
1.41      ng       2652: 	}
                   2653:     }
                   2654:     $ctr = 0;
1.605     www      2655: # FIXME: this is fishy, looks like the button label
1.41      ng       2656:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
1.582     raeburn  2657:     my $res_error;
                   2658:     my ($partlist) = &response_type($symb,\$res_error);
                   2659:     if ($res_error) {
                   2660:         $request->print(&navmap_errormsg());
                   2661:         return;
                   2662:     }
1.41      ng       2663:     foreach my $student (@parsedlist) {
1.257     albertel 2664: 	my $submitonly=$env{'form.submitonly'};
1.41      ng       2665: 	my ($uname,$udom) = split(/:/,$student);
1.301     albertel 2666: 	
                   2667: 	if ($submitonly eq 'queued') {
                   2668: 	    my %queue_status = 
                   2669: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
                   2670: 							$udom,$uname);
                   2671: 	    next if (!defined($queue_status{'gradingqueue'}));
                   2672: 	}
                   2673: 
1.156     albertel 2674: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
1.257     albertel 2675: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
1.324     albertel 2676: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
1.145     albertel 2677: 	    my $submitted = 0;
1.248     albertel 2678: 	    my $ungraded = 0;
                   2679: 	    my $incorrect = 0;
1.524     raeburn  2680: 	    foreach my $item (keys(%status)) {
                   2681: 		$submitted = 1 if ($status{$item} ne 'nothing');
                   2682: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
                   2683: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
                   2684: 		my ($foo,$partid,$foo1) = split(/\./,$item);
1.145     albertel 2685: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
                   2686: 		    $submitted = 0;
                   2687: 		}
1.41      ng       2688: 	    }
1.156     albertel 2689: 	    next if (!$submitted && ($submitonly eq 'yes' ||
                   2690: 				     $submitonly eq 'incorrect' ||
                   2691: 				     $submitonly eq 'graded'));
1.248     albertel 2692: 	    next if (!$ungraded && ($submitonly eq 'graded'));
                   2693: 	    next if (!$incorrect && $submitonly eq 'incorrect');
1.41      ng       2694: 	}
1.524     raeburn  2695: 	push(@nextlist,$student) if ($ctr < $ntstu);
1.129     ng       2696: 	last if ($ctr == $ntstu);
1.41      ng       2697: 	$ctr++;
                   2698:     }
1.36      ng       2699: 
1.41      ng       2700:     $ctr = 0;
                   2701:     my $total = scalar(@nextlist)-1;
1.39      ng       2702: 
1.524     raeburn  2703:     foreach (sort(@nextlist)) {
1.41      ng       2704: 	my ($uname,$udom,$submitter) = split(/:/);
1.257     albertel 2705: 	$env{'form.student'}  = $uname;
                   2706: 	$env{'form.userdom'}  = $udom;
                   2707: 	$env{'form.fullname'} = $$fullname{$_};
1.625     www      2708: 	&submission($request,$ctr,$total,$symb);
1.41      ng       2709: 	$ctr++;
                   2710:     }
                   2711:     if ($total < 0) {
1.632     www      2712: 	my $the_end.=&mt('<b>Message: </b> No more students for this section or class.').'<br /><br />'."\n";
1.41      ng       2713: 	$request->print($the_end);
                   2714:     }
                   2715:     return '';
1.38      ng       2716: }
1.36      ng       2717: 
1.44      ng       2718: #---- Save the score and award for each student, if changed
1.38      ng       2719: sub saveHandGrade {
1.324     albertel 2720:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
1.342     banghart 2721:     my @version_parts;
1.104     albertel 2722:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
1.257     albertel 2723: 					   $env{'request.course.id'});
1.104     albertel 2724:     if (!&canmodify($usec)) { return('not_allowed'); }
1.337     banghart 2725:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
1.251     banghart 2726:     my @parts_graded;
1.77      ng       2727:     my %newrecord  = ();
                   2728:     my ($pts,$wgt) = ('','');
1.269     raeburn  2729:     my %aggregate = ();
                   2730:     my $aggregateflag = 0;
1.301     albertel 2731:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
                   2732:     foreach my $new_part (@parts) {
1.337     banghart 2733: 	#collaborator ($submi may vary for different parts
1.259     banghart 2734: 	if ($submitter && $new_part ne $part) { next; }
                   2735: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
1.125     ng       2736: 	if ($dropMenu eq 'excused') {
1.259     banghart 2737: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
                   2738: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
                   2739: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
                   2740: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
1.58      albertel 2741: 		}
1.364     banghart 2742: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
1.58      albertel 2743: 	    }
1.125     ng       2744: 	} elsif ($dropMenu eq 'reset status'
1.259     banghart 2745: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
1.524     raeburn  2746: 	    foreach my $key (keys(%record)) {
1.259     banghart 2747: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
1.197     albertel 2748: 	    }
1.259     banghart 2749: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
1.257     albertel 2750: 		"$env{'user.name'}:$env{'user.domain'}";
1.270     albertel 2751:             my $totaltries = $record{'resource.'.$part.'.tries'};
                   2752: 
                   2753:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
                   2754: 					       [$new_part]);
                   2755:             my $aggtries =$totaltries;
1.269     raeburn  2756:             if ($last_resets{$new_part}) {
1.270     albertel 2757:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
                   2758: 					   $new_part);
1.269     raeburn  2759:             }
1.270     albertel 2760: 
                   2761:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
1.269     raeburn  2762:             if ($aggtries > 0) {
1.327     albertel 2763:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
1.269     raeburn  2764:                 $aggregateflag = 1;
                   2765:             }
1.125     ng       2766: 	} elsif ($dropMenu eq '') {
1.259     banghart 2767: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
                   2768: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
                   2769: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
                   2770: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
1.153     albertel 2771: 		next;
                   2772: 	    }
1.259     banghart 2773: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
                   2774: 		$env{'form.WGT'.$newflg.'_'.$new_part};
1.41      ng       2775: 	    my $partial= $pts/$wgt;
1.259     banghart 2776: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
1.153     albertel 2777: 		#do not update score for part if not changed.
1.346     banghart 2778:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
1.153     albertel 2779: 		next;
1.251     banghart 2780: 	    } else {
1.524     raeburn  2781: 	        push(@parts_graded,$new_part);
1.153     albertel 2782: 	    }
1.259     banghart 2783: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
                   2784: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
1.153     albertel 2785: 	    }
1.259     banghart 2786: 	    my $reckey = 'resource.'.$new_part.'.solved';
1.41      ng       2787: 	    if ($partial == 0) {
1.153     albertel 2788: 		if ($record{$reckey} ne 'incorrect_by_override') {
                   2789: 		    $newrecord{$reckey} = 'incorrect_by_override';
                   2790: 		}
1.41      ng       2791: 	    } else {
1.153     albertel 2792: 		if ($record{$reckey} ne 'correct_by_override') {
                   2793: 		    $newrecord{$reckey} = 'correct_by_override';
                   2794: 		}
                   2795: 	    }	    
                   2796: 	    if ($submitter && 
1.259     banghart 2797: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
                   2798: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
1.41      ng       2799: 	    }
1.259     banghart 2800: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
1.257     albertel 2801: 		"$env{'user.name'}:$env{'user.domain'}";
1.41      ng       2802: 	}
1.259     banghart 2803: 	# unless problem has been graded, set flag to version the submitted files
1.305     banghart 2804: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
                   2805: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
                   2806: 	        $dropMenu eq 'reset status')
                   2807: 	   {
1.524     raeburn  2808: 	    push(@version_parts,$new_part);
1.259     banghart 2809: 	}
1.41      ng       2810:     }
1.301     albertel 2811:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
                   2812:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
                   2813: 
1.344     albertel 2814:     if (%newrecord) {
                   2815:         if (@version_parts) {
1.364     banghart 2816:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
                   2817:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
1.344     albertel 2818: 	    @newrecord{@changed_keys} = @record{@changed_keys};
1.367     albertel 2819: 	    foreach my $new_part (@version_parts) {
                   2820: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
                   2821: 				$new_part,\%newrecord);
                   2822: 	    }
1.259     banghart 2823:         }
1.44      ng       2824: 	&Apache::lonnet::cstore(\%newrecord,$symb,
1.257     albertel 2825: 				$env{'request.course.id'},$domain,$stuname);
1.380     albertel 2826: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
                   2827: 				     $cdom,$cnum,$domain,$stuname);
1.41      ng       2828:     }
1.269     raeburn  2829:     if ($aggregateflag) {
                   2830:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.301     albertel 2831: 			      $cdom,$cnum);
1.269     raeburn  2832:     }
1.301     albertel 2833:     return ('',$pts,$wgt);
1.36      ng       2834: }
1.322     albertel 2835: 
1.380     albertel 2836: sub check_and_remove_from_queue {
                   2837:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
                   2838:     my @ungraded_parts;
                   2839:     foreach my $part (@{$parts}) {
                   2840: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
                   2841: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
                   2842: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
                   2843: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
                   2844: 		) {
                   2845: 	    push(@ungraded_parts, $part);
                   2846: 	}
                   2847:     }
                   2848:     if ( !@ungraded_parts ) {
                   2849: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
                   2850: 					       $cnum,$domain,$stuname);
                   2851:     }
                   2852: }
                   2853: 
1.337     banghart 2854: sub handback_files {
                   2855:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
1.517     raeburn  2856:     my $portfolio_root = '/userfiles/portfolio';
1.582     raeburn  2857:     my $res_error;
                   2858:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
                   2859:     if ($res_error) {
                   2860:         $request->print('<br />'.&navmap_errormsg().'<br />');
                   2861:         return;
                   2862:     }
1.375     albertel 2863:     my @part_response_id = &flatten_responseType($responseType);
                   2864:     foreach my $part_response_id (@part_response_id) {
                   2865:     	my ($part_id,$resp_id) = @{ $part_response_id };
                   2866: 	my $part_resp = join('_',@{ $part_response_id });
1.651   ! raeburn  2867:             if (($env{'form.'.$newflg.'_'.$part_resp.'_returndoc1'}) && ($new_part eq $part_id)) {
1.337     banghart 2868:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
                   2869:                 my $file_counter = 1;
1.367     albertel 2870: 		my $file_msg;
1.337     banghart 2871:                 while ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter}) {
                   2872:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter.'.filename'};
1.338     banghart 2873:                     my ($directory,$answer_file) = 
                   2874:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter} =~ /^(.*?)([^\/]*)$/);
                   2875:                     my ($answer_name,$answer_ver,$answer_ext) =
                   2876: 		        &file_name_version_ext($answer_file);
1.355     banghart 2877: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
1.517     raeburn  2878:                     my $getpropath = 1;
                   2879: 		    my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,$domain,$stuname,$getpropath);
1.338     banghart 2880: 		    my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
1.355     banghart 2881:                     # fix file name
                   2882:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
                   2883:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
                   2884:             	                                $newflg.'_'.$part_resp.'_returndoc'.$file_counter,
                   2885:             	                                $save_file_name);
1.337     banghart 2886:                     if ($result !~ m|^/uploaded/|) {
1.536     raeburn  2887:                         $request->print('<br /><span class="LC_error">'.
                   2888:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
                   2889:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$file_counter).
                   2890:                                         '</span>');
1.356     banghart 2891:                     } else {
1.360     banghart 2892:                         # mark the file as read only
                   2893:                         my @files = ($save_file_name);
1.372     albertel 2894:                         my @what = ($symb,$env{'request.course.id'},'handback');
1.360     banghart 2895:                         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@files,\@what);
1.367     albertel 2896: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
                   2897: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
                   2898: 			}
                   2899:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
                   2900: 			$file_msg.= "\n".'<br /><span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span><br />";
                   2901: 
1.337     banghart 2902:                     }
                   2903:                     $request->print("<br />".$fname." will be the uploaded file name");
1.354     albertel 2904:                     $request->print(" ".$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter});
1.337     banghart 2905:                     $file_counter++;
                   2906:                 }
1.367     albertel 2907: 		my $subject = "File Handed Back by Instructor ";
                   2908: 		my $message = "A file has been returned that was originally submitted in reponse to: <br />";
                   2909: 		$message .= "<strong>".&Apache::lonnet::gettitle($symb)."</strong><br />";
                   2910: 		$message .= ' The returned file(s) are named: '. $file_msg;
                   2911: 		$message .= " and can be found in your portfolio space.";
1.418     albertel 2912: 		my ($feedurl,$showsymb) = 
                   2913: 		    &get_feedurl_and_symb($symb,$domain,$stuname);
1.386     raeburn  2914:                 my $restitle = &Apache::lonnet::gettitle($symb);
                   2915: 		my $msgstatus = 
                   2916:                    &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject.
                   2917: 			 ' (File Returned) ['.$restitle.']',$message,undef,
1.418     albertel 2918:                          $feedurl,undef,undef,undef,$showsymb,$restitle);
1.337     banghart 2919:             }
                   2920:         }
1.338     banghart 2921:     return;
1.337     banghart 2922: }
                   2923: 
1.418     albertel 2924: sub get_feedurl_and_symb {
                   2925:     my ($symb,$uname,$udom) = @_;
                   2926:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
                   2927:     $url = &Apache::lonnet::clutter($url);
                   2928:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
                   2929: 					$symb,$udom,$uname);
                   2930:     if ($encrypturl =~ /^yes$/i) {
                   2931: 	&Apache::lonenc::encrypted(\$url,1);
                   2932: 	&Apache::lonenc::encrypted(\$symb,1);
                   2933:     }
                   2934:     return ($url,$symb);
                   2935: }
                   2936: 
1.313     banghart 2937: sub get_submitted_files {
                   2938:     my ($udom,$uname,$partid,$respid,$record) = @_;
                   2939:     my @files;
                   2940:     if ($$record{"resource.$partid.$respid.portfiles"}) {
                   2941:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
                   2942:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
                   2943:     	    push(@files,$file_url.$file);
                   2944:         }
                   2945:     }
                   2946:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
                   2947:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
                   2948:     }
                   2949:     return (\@files);
                   2950: }
1.322     albertel 2951: 
1.269     raeburn  2952: # ----------- Provides number of tries since last reset.
                   2953: sub get_num_tries {
                   2954:     my ($record,$last_reset,$part) = @_;
                   2955:     my $timestamp = '';
                   2956:     my $num_tries = 0;
                   2957:     if ($$record{'version'}) {
                   2958:         for (my $version=$$record{'version'};$version>=1;$version--) {
                   2959:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
                   2960:                 $timestamp = $$record{$version.':timestamp'};
                   2961:                 if ($timestamp > $last_reset) {
                   2962:                     $num_tries ++;
                   2963:                 } else {
                   2964:                     last;
                   2965:                 }
                   2966:             }
                   2967:         }
                   2968:     }
                   2969:     return $num_tries;
                   2970: }
                   2971: 
                   2972: # ----------- Determine decrements required in aggregate totals 
                   2973: sub decrement_aggs {
                   2974:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
                   2975:     my %decrement = (
                   2976:                         attempts => 0,
                   2977:                         users => 0,
                   2978:                         correct => 0
                   2979:                     );
                   2980:     $decrement{'attempts'} = $aggtries;
                   2981:     if ($solvedstatus =~ /^correct/) {
                   2982:         $decrement{'correct'} = 1;
                   2983:     }
                   2984:     if ($aggtries == $totaltries) {
                   2985:         $decrement{'users'} = 1;
                   2986:     }
1.524     raeburn  2987:     foreach my $type (keys(%decrement)) {
1.269     raeburn  2988:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
                   2989:     }
                   2990:     return;
                   2991: }
                   2992: 
                   2993: # ----------- Determine timestamps for last reset of aggregate totals for parts  
                   2994: sub get_last_resets {
1.270     albertel 2995:     my ($symb,$courseid,$partids) =@_;
                   2996:     my %last_resets;
1.269     raeburn  2997:     my $cdom = $env{'course.'.$courseid.'.domain'};
                   2998:     my $cname = $env{'course.'.$courseid.'.num'};
1.271     albertel 2999:     my @keys;
                   3000:     foreach my $part (@{$partids}) {
                   3001: 	push(@keys,"$symb\0$part\0resettime");
                   3002:     }
                   3003:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
                   3004: 				     $cdom,$cname);
                   3005:     foreach my $part (@{$partids}) {
                   3006: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
1.269     raeburn  3007:     }
1.270     albertel 3008:     return %last_resets;
1.269     raeburn  3009: }
                   3010: 
1.251     banghart 3011: # ----------- Handles creating versions for portfolio files as answers
                   3012: sub version_portfiles {
1.343     banghart 3013:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
1.263     banghart 3014:     my $version_parts = join('|',@$v_flag);
1.343     banghart 3015:     my @returned_keys;
1.255     banghart 3016:     my $parts = join('|', @$parts_graded);
1.517     raeburn  3017:     my $portfolio_root = '/userfiles/portfolio';
1.277     albertel 3018:     foreach my $key (keys(%$record)) {
1.259     banghart 3019:         my $new_portfiles;
1.263     banghart 3020:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
1.342     banghart 3021:             my @versioned_portfiles;
1.367     albertel 3022:             my @portfiles = split(/\s*,\s*/,$$record{$key});
1.252     banghart 3023:             foreach my $file (@portfiles) {
1.306     banghart 3024:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
1.304     albertel 3025:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
                   3026: 		my ($answer_name,$answer_ver,$answer_ext) =
                   3027: 		    &file_name_version_ext($answer_file);
1.517     raeburn  3028:                 my $getpropath = 1;    
                   3029:                 my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,$stu_name,$getpropath);
1.342     banghart 3030:                 my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
1.306     banghart 3031:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
                   3032:                 if ($new_answer ne 'problem getting file') {
1.342     banghart 3033:                     push(@versioned_portfiles, $directory.$new_answer);
1.306     banghart 3034:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
1.367     albertel 3035:                         [$directory.$new_answer],
1.306     banghart 3036:                         [$symb,$env{'request.course.id'},'graded']);
1.259     banghart 3037:                 }
1.252     banghart 3038:             }
1.343     banghart 3039:             $$record{$key} = join(',',@versioned_portfiles);
                   3040:             push(@returned_keys,$key);
1.251     banghart 3041:         }
                   3042:     } 
1.343     banghart 3043:     return (@returned_keys);   
1.305     banghart 3044: }
                   3045: 
1.307     banghart 3046: sub get_next_version {
1.341     banghart 3047:     my ($answer_name, $answer_ext, $dir_list) = @_;
1.307     banghart 3048:     my $version;
                   3049:     foreach my $row (@$dir_list) {
                   3050:         my ($file) = split(/\&/,$row,2);
                   3051:         my ($file_name,$file_version,$file_ext) =
                   3052: 	    &file_name_version_ext($file);
                   3053:         if (($file_name eq $answer_name) && 
                   3054: 	    ($file_ext eq $answer_ext)) {
                   3055:                 # gets here if filename and extension match, regardless of version
                   3056:                 if ($file_version ne '') {
                   3057:                 # a versioned file is found  so save it for later
                   3058:                 if ($file_version > $version) {
                   3059: 		    $version = $file_version;
                   3060: 	        }
                   3061:             }
                   3062:         }
                   3063:     } 
                   3064:     $version ++;
                   3065:     return($version);
                   3066: }
                   3067: 
1.305     banghart 3068: sub version_selected_portfile {
1.306     banghart 3069:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
                   3070:     my ($answer_name,$answer_ver,$answer_ext) =
                   3071:         &file_name_version_ext($file_name);
                   3072:     my $new_answer;
                   3073:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
                   3074:     if($env{'form.copy'} eq '-1') {
                   3075:         $new_answer = 'problem getting file';
                   3076:     } else {
                   3077:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
                   3078:         my $copy_result = &Apache::lonnet::finishuserfileupload(
                   3079:                             $stu_name,$domain,'copy',
                   3080: 		        '/portfolio'.$directory.$new_answer);
                   3081:     }    
                   3082:     return ($new_answer);
1.251     banghart 3083: }
                   3084: 
1.304     albertel 3085: sub file_name_version_ext {
                   3086:     my ($file)=@_;
                   3087:     my @file_parts = split(/\./, $file);
                   3088:     my ($name,$version,$ext);
                   3089:     if (@file_parts > 1) {
                   3090: 	$ext=pop(@file_parts);
                   3091: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
                   3092: 	    $version=pop(@file_parts);
                   3093: 	}
                   3094: 	$name=join('.',@file_parts);
                   3095:     } else {
                   3096: 	$name=join('.',@file_parts);
                   3097:     }
                   3098:     return($name,$version,$ext);
                   3099: }
                   3100: 
1.44      ng       3101: #--------------------------------------------------------------------------------------
                   3102: #
                   3103: #-------------------------- Next few routines handles grading by section or whole class
                   3104: #
                   3105: #--- Javascript to handle grading by section or whole class
1.42      ng       3106: sub viewgrades_js {
                   3107:     my ($request) = shift;
                   3108: 
1.539     riegler  3109:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
1.597     wenzelju 3110:     $request->print(&Apache::lonhtmlcommon::scripttag(<<VIEWJAVASCRIPT));
1.45      ng       3111:    function writePoint(partid,weight,point) {
1.125     ng       3112: 	var radioButton = document.classgrade["RADVAL_"+partid];
                   3113: 	var textbox = document.classgrade["TEXTVAL_"+partid];
1.42      ng       3114: 	if (point == "textval") {
1.125     ng       3115: 	    point = document.classgrade["TEXTVAL_"+partid].value;
1.109     matthew  3116: 	    if (isNaN(point) || parseFloat(point) < 0) {
1.539     riegler  3117: 		alert("$alertmsg"+parseFloat(point));
1.42      ng       3118: 		var resetbox = false;
                   3119: 		for (var i=0; i<radioButton.length; i++) {
                   3120: 		    if (radioButton[i].checked) {
                   3121: 			textbox.value = i;
                   3122: 			resetbox = true;
                   3123: 		    }
                   3124: 		}
                   3125: 		if (!resetbox) {
                   3126: 		    textbox.value = "";
                   3127: 		}
                   3128: 		return;
                   3129: 	    }
1.109     matthew  3130: 	    if (parseFloat(point) > parseFloat(weight)) {
                   3131: 		var resp = confirm("You entered a value ("+parseFloat(point)+
1.44      ng       3132: 				   ") greater than the weight for the part. Accept?");
                   3133: 		if (resp == false) {
                   3134: 		    textbox.value = "";
                   3135: 		    return;
                   3136: 		}
                   3137: 	    }
1.42      ng       3138: 	    for (var i=0; i<radioButton.length; i++) {
                   3139: 		radioButton[i].checked=false;
1.109     matthew  3140: 		if (parseFloat(point) == i) {
1.42      ng       3141: 		    radioButton[i].checked=true;
                   3142: 		}
                   3143: 	    }
1.41      ng       3144: 
1.42      ng       3145: 	} else {
1.125     ng       3146: 	    textbox.value = parseFloat(point);
1.42      ng       3147: 	}
1.41      ng       3148: 	for (i=0;i<document.classgrade.total.value;i++) {
1.125     ng       3149: 	    var user = document.classgrade["ctr"+i].value;
1.289     albertel 3150: 	    user = user.replace(new RegExp(':', 'g'),"_");
1.125     ng       3151: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
                   3152: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
                   3153: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
1.42      ng       3154: 	    if (saveval != "correct") {
                   3155: 		scorename.value = point;
1.43      ng       3156: 		if (selname[0].selected != true) {
                   3157: 		    selname[0].selected = true;
                   3158: 		}
1.42      ng       3159: 	    }
                   3160: 	}
1.125     ng       3161: 	document.classgrade["SELVAL_"+partid][0].selected = true;
1.42      ng       3162:     }
                   3163: 
                   3164:     function writeRadText(partid,weight) {
1.125     ng       3165: 	var selval   = document.classgrade["SELVAL_"+partid];
                   3166: 	var radioButton = document.classgrade["RADVAL_"+partid];
1.265     www      3167:         var override = document.classgrade["FORCE_"+partid].checked;
1.125     ng       3168: 	var textbox = document.classgrade["TEXTVAL_"+partid];
                   3169: 	if (selval[1].selected || selval[2].selected) {
1.42      ng       3170: 	    for (var i=0; i<radioButton.length; i++) {
                   3171: 		radioButton[i].checked=false;
                   3172: 
                   3173: 	    }
                   3174: 	    textbox.value = "";
                   3175: 
                   3176: 	    for (i=0;i<document.classgrade.total.value;i++) {
1.125     ng       3177: 		var user = document.classgrade["ctr"+i].value;
1.289     albertel 3178: 		user = user.replace(new RegExp(':', 'g'),"_");
1.125     ng       3179: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
                   3180: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
                   3181: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
1.265     www      3182: 		if ((saveval != "correct") || override) {
1.42      ng       3183: 		    scorename.value = "";
1.125     ng       3184: 		    if (selval[1].selected) {
                   3185: 			selname[1].selected = true;
                   3186: 		    } else {
                   3187: 			selname[2].selected = true;
                   3188: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
                   3189: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
                   3190: 		    }
1.42      ng       3191: 		}
                   3192: 	    }
1.43      ng       3193: 	} else {
                   3194: 	    for (i=0;i<document.classgrade.total.value;i++) {
1.125     ng       3195: 		var user = document.classgrade["ctr"+i].value;
1.289     albertel 3196: 		user = user.replace(new RegExp(':', 'g'),"_");
1.125     ng       3197: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
                   3198: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
                   3199: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
1.265     www      3200: 		if ((saveval != "correct") || override) {
1.125     ng       3201: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
1.43      ng       3202: 		    selname[0].selected = true;
                   3203: 		}
                   3204: 	    }
                   3205: 	}	    
1.42      ng       3206:     }
                   3207: 
                   3208:     function changeSelect(partid,user) {
1.125     ng       3209: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
                   3210: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
1.44      ng       3211: 	var point  = textbox.value;
1.125     ng       3212: 	var weight = document.classgrade["weight_"+partid].value;
1.44      ng       3213: 
1.109     matthew  3214: 	if (isNaN(point) || parseFloat(point) < 0) {
1.539     riegler  3215: 	    alert("$alertmsg"+parseFloat(point));
1.44      ng       3216: 	    textbox.value = "";
                   3217: 	    return;
                   3218: 	}
1.109     matthew  3219: 	if (parseFloat(point) > parseFloat(weight)) {
                   3220: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
1.44      ng       3221: 			       ") greater than the weight of the part. Accept?");
                   3222: 	    if (resp == false) {
                   3223: 		textbox.value = "";
                   3224: 		return;
                   3225: 	    }
                   3226: 	}
1.42      ng       3227: 	selval[0].selected = true;
                   3228:     }
                   3229: 
                   3230:     function changeOneScore(partid,user) {
1.125     ng       3231: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
                   3232: 	if (selval[1].selected || selval[2].selected) {
                   3233: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
                   3234: 	    if (selval[2].selected) {
                   3235: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
                   3236: 	    }
1.269     raeburn  3237:         }
1.42      ng       3238:     }
                   3239: 
                   3240:     function resetEntry(numpart) {
                   3241: 	for (ctpart=0;ctpart<numpart;ctpart++) {
1.125     ng       3242: 	    var partid = document.classgrade["partid_"+ctpart].value;
                   3243: 	    var radioButton = document.classgrade["RADVAL_"+partid];
                   3244: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
                   3245: 	    var selval  = document.classgrade["SELVAL_"+partid];
1.42      ng       3246: 	    for (var i=0; i<radioButton.length; i++) {
                   3247: 		radioButton[i].checked=false;
                   3248: 
                   3249: 	    }
                   3250: 	    textbox.value = "";
                   3251: 	    selval[0].selected = true;
                   3252: 
                   3253: 	    for (i=0;i<document.classgrade.total.value;i++) {
1.125     ng       3254: 		var user = document.classgrade["ctr"+i].value;
1.289     albertel 3255: 		user = user.replace(new RegExp(':', 'g'),"_");
1.125     ng       3256: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
                   3257: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
                   3258: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
                   3259: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
                   3260: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
                   3261: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
1.42      ng       3262: 		if (saveselval == "excused") {
1.43      ng       3263: 		    if (selname[1].selected == false) { selname[1].selected = true;}
1.42      ng       3264: 		} else {
1.43      ng       3265: 		    if (selname[0].selected == false) {selname[0].selected = true};
1.42      ng       3266: 		}
                   3267: 	    }
1.41      ng       3268: 	}
1.42      ng       3269:     }
                   3270: 
1.41      ng       3271: VIEWJAVASCRIPT
1.42      ng       3272: }
                   3273: 
1.44      ng       3274: #--- show scores for a section or whole class w/ option to change/update a score
1.42      ng       3275: sub viewgrades {
1.608     www      3276:     my ($request,$symb) = @_;
1.42      ng       3277:     &viewgrades_js($request);
1.41      ng       3278: 
1.168     albertel 3279:     #need to make sure we have the correct data for later EXT calls, 
                   3280:     #thus invalidate the cache
                   3281:     &Apache::lonnet::devalidatecourseresdata(
1.257     albertel 3282:                  $env{'course.'.$env{'request.course.id'}.'.num'},
                   3283:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
1.168     albertel 3284:     &Apache::lonnet::clear_EXT_cache_status();
                   3285: 
1.398     albertel 3286:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
1.41      ng       3287: 
                   3288:     #view individual student submission form - called using Javascript viewOneStudent
1.324     albertel 3289:     $result.=&jscriptNform($symb);
1.41      ng       3290: 
1.44      ng       3291:     #beginning of class grading form
1.442     banghart 3292:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
1.41      ng       3293:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
1.418     albertel 3294: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
1.38      ng       3295: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
1.432     banghart 3296: 	&build_section_inputs().
1.442     banghart 3297: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
1.72      ng       3298: 
1.560     raeburn  3299:     my ($common_header,$specific_header);
1.257     albertel 3300:     if ($env{'form.section'} eq 'all') {
1.560     raeburn  3301: 	$common_header = &mt('Assign Common Grade to Class');
                   3302:         $specific_header = &mt('Assign Grade to Specific Students in Class');
1.257     albertel 3303:     } elsif ($env{'form.section'} eq 'none') {
1.560     raeburn  3304:         $common_header = &mt('Assign Common Grade to Students in no Section');
                   3305: 	$specific_header = &mt('Assign Grade to Specific Students in no Section');
1.52      albertel 3306:     } else {
1.560     raeburn  3307:         my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
                   3308:         $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
                   3309: 	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
1.52      albertel 3310:     }
1.560     raeburn  3311:     $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
1.44      ng       3312:     #radio buttons/text box for assigning points for a section or class.
                   3313:     #handles different parts of a problem
1.582     raeburn  3314:     my $res_error;
                   3315:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
                   3316:     if ($res_error) {
                   3317:         return &navmap_errormsg();
                   3318:     }
1.42      ng       3319:     my %weight = ();
                   3320:     my $ctsparts = 0;
1.45      ng       3321:     my %seen = ();
1.375     albertel 3322:     my @part_response_id = &flatten_responseType($responseType);
                   3323:     foreach my $part_response_id (@part_response_id) {
                   3324:     	my ($partid,$respid) = @{ $part_response_id };
                   3325: 	my $part_resp = join('_',@{ $part_response_id });
1.45      ng       3326: 	next if $seen{$partid};
                   3327: 	$seen{$partid}++;
1.375     albertel 3328: 	my $handgrade=$$handgrade{$part_resp};
1.42      ng       3329: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
                   3330: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
                   3331: 
1.324     albertel 3332: 	my $display_part=&get_display_part($partid,$symb);
1.485     albertel 3333: 	my $radio.='<table border="0"><tr>';  
1.41      ng       3334: 	my $ctr = 0;
1.42      ng       3335: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
1.485     albertel 3336: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
1.54      albertel 3337: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
1.288     albertel 3338: 		','.$ctr.')" />'.$ctr."</label></td>\n";
1.41      ng       3339: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
                   3340: 	    $ctr++;
                   3341: 	}
1.485     albertel 3342: 	$radio.='</tr></table>';
                   3343: 	my $line = '<input type="text" name="TEXTVAL_'.
1.589     bisitz   3344: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
1.54      albertel 3345: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
1.539     riegler  3346: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
                   3347: 	$line.= '<td><b>'.&mt('Grade Status').':</b><select name="SELVAL_'.$partid.'"'.
1.589     bisitz   3348: 	    'onchange="javascript:writeRadText(\''.$partid.'\','.
1.59      albertel 3349: 		$weight{$partid}.')"> '.
1.401     albertel 3350: 	    '<option selected="selected"> </option>'.
1.485     albertel 3351: 	    '<option value="excused">'.&mt('excused').'</option>'.
                   3352: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
                   3353: 	    '</select></td>'.
                   3354:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
                   3355: 	$line.='<input type="hidden" name="partid_'.
                   3356: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
                   3357: 	$line.='<input type="hidden" name="weight_'.
                   3358: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
                   3359: 
                   3360: 	$result.=
                   3361: 	    &Apache::loncommon::start_data_table_row()."\n".
1.577     bisitz   3362: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
1.485     albertel 3363: 	    &Apache::loncommon::end_data_table_row()."\n";
1.42      ng       3364: 	$ctsparts++;
1.41      ng       3365:     }
1.474     albertel 3366:     $result.=&Apache::loncommon::end_data_table()."\n".
1.52      albertel 3367: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
1.485     albertel 3368:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
1.589     bisitz   3369: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
1.41      ng       3370: 
1.44      ng       3371:     #table listing all the students in a section/class
                   3372:     #header of table
1.560     raeburn  3373:     $result.= '<h3>'.$specific_header.'</h3>'.
                   3374:               &Apache::loncommon::start_data_table().
                   3375: 	      &Apache::loncommon::start_data_table_header_row().
                   3376: 	      '<th>'.&mt('No.').'</th>'.
                   3377: 	      '<th>'.&nameUserString('header')."</th>\n";
1.582     raeburn  3378:     my $partserror;
                   3379:     my (@parts) = sort(&getpartlist($symb,\$partserror));
                   3380:     if ($partserror) {
                   3381:         return &navmap_errormsg();
                   3382:     }
1.324     albertel 3383:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
1.269     raeburn  3384:     my @partids = ();
1.41      ng       3385:     foreach my $part (@parts) {
                   3386: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
1.539     riegler  3387:         my $narrowtext = &mt('Tries');
                   3388: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
1.41      ng       3389: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
1.207     albertel 3390: 	my ($partid) = &split_part_type($part);
1.524     raeburn  3391:         push(@partids,$partid);
1.628     www      3392: #
                   3393: # FIXME: Looks like $display looks at English text
                   3394: #
1.324     albertel 3395: 	my $display_part=&get_display_part($partid,$symb);
1.41      ng       3396: 	if ($display =~ /^Partial Credit Factor/) {
1.485     albertel 3397: 	    $result.='<th>'.
                   3398: 		&mt('Score Part: [_1]<br /> (weight = [_2])',
                   3399: 		    $display_part,$weight{$partid}).'</th>'."\n";
1.41      ng       3400: 	    next;
1.485     albertel 3401: 	    
1.207     albertel 3402: 	} else {
1.485     albertel 3403: 	    if ($display =~ /Problem Status/) {
                   3404: 		my $grade_status_mt = &mt('Grade Status');
                   3405: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
                   3406: 	    }
                   3407: 	    my $part_mt = &mt('Part:');
                   3408: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
1.41      ng       3409: 	}
1.485     albertel 3410: 
1.474     albertel 3411: 	$result.='<th>'.$display.'</th>'."\n";
1.41      ng       3412:     }
1.474     albertel 3413:     $result.=&Apache::loncommon::end_data_table_header_row();
1.44      ng       3414: 
1.270     albertel 3415:     my %last_resets = 
                   3416: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
1.269     raeburn  3417: 
1.41      ng       3418:     #get info for each student
1.44      ng       3419:     #list all the students - with points and grade status
1.257     albertel 3420:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
1.41      ng       3421:     my $ctr = 0;
1.294     albertel 3422:     foreach (sort 
                   3423: 	     {
                   3424: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
                   3425: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
                   3426: 		 }
                   3427: 		 return $a cmp $b;
                   3428: 	     } (keys(%$fullname))) {
1.126     ng       3429: 	$ctr++;
1.324     albertel 3430: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
1.269     raeburn  3431: 				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
1.41      ng       3432:     }
1.474     albertel 3433:     $result.=&Apache::loncommon::end_data_table();
1.41      ng       3434:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
1.485     albertel 3435:     $result.='<input type="button" value="'.&mt('Save').'" '.
1.589     bisitz   3436: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
1.96      albertel 3437:     if (scalar(%$fullname) eq 0) {
                   3438: 	my $colspan=3+scalar(@parts);
1.433     banghart 3439: 	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
1.442     banghart 3440:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
1.433     banghart 3441: 	$result='<span class="LC_warning">'.
1.485     albertel 3442: 	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
1.442     banghart 3443: 	        $section_display, $stu_status).
1.433     banghart 3444: 	    '</span>';
1.96      albertel 3445:     }
1.41      ng       3446:     return $result;
                   3447: }
                   3448: 
1.44      ng       3449: #--- call by previous routine to display each student
1.41      ng       3450: sub viewstudentgrade {
1.324     albertel 3451:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
1.44      ng       3452:     my ($uname,$udom) = split(/:/,$student);
                   3453:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
1.269     raeburn  3454:     my %aggregates = (); 
1.474     albertel 3455:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
1.233     albertel 3456: 	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
                   3457: 	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
1.44      ng       3458: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
1.417     albertel 3459: 	'\');" target="_self">'.$fullname.'</a> '.
1.398     albertel 3460: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
1.281     albertel 3461:     $student=~s/:/_/; # colon doen't work in javascript for names
1.63      albertel 3462:     foreach my $apart (@$parts) {
                   3463: 	my ($part,$type) = &split_part_type($apart);
1.41      ng       3464: 	my $score=$record{"resource.$part.$type"};
1.276     albertel 3465:         $result.='<td align="center">';
1.269     raeburn  3466:         my ($aggtries,$totaltries);
                   3467:         unless (exists($aggregates{$part})) {
1.270     albertel 3468: 	    $totaltries = $record{'resource.'.$part.'.tries'};
                   3469: 
                   3470: 	    $aggtries = $totaltries;
1.269     raeburn  3471:             if ($$last_resets{$part}) {  
1.270     albertel 3472:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
                   3473: 					   $part);
                   3474:             }
1.269     raeburn  3475:             $result.='<input type="hidden" name="'.
                   3476:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
                   3477:             $result.='<input type="hidden" name="'.
                   3478:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
                   3479:             $aggregates{$part} = 1;
                   3480:         }
1.41      ng       3481: 	if ($type eq 'awarded') {
1.320     albertel 3482: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
1.42      ng       3483: 	    $result.='<input type="hidden" name="'.
1.89      albertel 3484: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
1.233     albertel 3485: 	    $result.='<input type="text" name="'.
1.89      albertel 3486: 		'GD_'.$student.'_'.$part.'_awarded" '.
1.589     bisitz   3487:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
1.44      ng       3488: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
1.41      ng       3489: 	} elsif ($type eq 'solved') {
                   3490: 	    my ($status,$foo)=split(/_/,$score,2);
                   3491: 	    $status = 'nothing' if ($status eq '');
1.89      albertel 3492: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
1.54      albertel 3493: 		$part.'_solved_s" value="'.$status.'" />'."\n";
1.233     albertel 3494: 	    $result.='&nbsp;<select name="'.
1.89      albertel 3495: 		'GD_'.$student.'_'.$part.'_solved" '.
1.589     bisitz   3496:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
1.485     albertel 3497: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
                   3498: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
                   3499: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
1.126     ng       3500: 	    $result.="</select>&nbsp;</td>\n";
1.122     ng       3501: 	} else {
                   3502: 	    $result.='<input type="hidden" name="'.
                   3503: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
                   3504: 		    "\n";
1.233     albertel 3505: 	    $result.='<input type="text" name="'.
1.122     ng       3506: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
                   3507: 		'value="'.$score.'" size="4" /></td>'."\n";
1.41      ng       3508: 	}
                   3509:     }
1.474     albertel 3510:     $result.=&Apache::loncommon::end_data_table_row();
1.41      ng       3511:     return $result;
1.38      ng       3512: }
                   3513: 
1.44      ng       3514: #--- change scores for all the students in a section/class
                   3515: #    record does not get update if unchanged
1.38      ng       3516: sub editgrades {
1.608     www      3517:     my ($request,$symb) = @_;
1.41      ng       3518: 
1.433     banghart 3519:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
1.477     albertel 3520:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
1.433     banghart 3521:     $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
1.126     ng       3522: 
1.477     albertel 3523:     my $result= &Apache::loncommon::start_data_table().
                   3524: 	&Apache::loncommon::start_data_table_header_row().
                   3525: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
                   3526: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
1.43      ng       3527:     my %scoreptr = (
                   3528: 		    'correct'  =>'correct_by_override',
                   3529: 		    'incorrect'=>'incorrect_by_override',
                   3530: 		    'excused'  =>'excused',
                   3531: 		    'ungraded' =>'ungraded_attempted',
1.596     raeburn  3532:                     'credited' =>'credit_attempted',
1.43      ng       3533: 		    'nothing'  => '',
                   3534: 		    );
1.257     albertel 3535:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
1.34      ng       3536: 
1.44      ng       3537:     my (@partid);
                   3538:     my %weight = ();
1.54      albertel 3539:     my %columns = ();
1.44      ng       3540:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
1.54      albertel 3541: 
1.582     raeburn  3542:     my $partserror;
                   3543:     my (@parts) = sort(&getpartlist($symb,\$partserror));
                   3544:     if ($partserror) {
                   3545:         return &navmap_errormsg();
                   3546:     }
1.54      albertel 3547:     my $header;
1.257     albertel 3548:     while ($ctr < $env{'form.totalparts'}) {
                   3549: 	my $partid = $env{'form.partid_'.$ctr};
1.524     raeburn  3550: 	push(@partid,$partid);
1.257     albertel 3551: 	$weight{$partid} = $env{'form.weight_'.$partid};
1.44      ng       3552: 	$ctr++;
1.54      albertel 3553:     }
1.324     albertel 3554:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
1.54      albertel 3555:     foreach my $partid (@partid) {
1.478     albertel 3556: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
                   3557: 	    '<th align="center">'.&mt('New Score').'</th>';
1.54      albertel 3558: 	$columns{$partid}=2;
                   3559: 	foreach my $stores (@parts) {
                   3560: 	    my ($part,$type) = &split_part_type($stores);
                   3561: 	    if ($part !~ m/^\Q$partid\E/) { next;}
                   3562: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
                   3563: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
1.551     raeburn  3564: 	    $display =~ s/\[Part: \Q$part\E\]//;
1.539     riegler  3565:             my $narrowtext = &mt('Tries');
                   3566: 	    $display =~ s/Number of Attempts/$narrowtext/;
                   3567: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
                   3568: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
1.54      albertel 3569: 	    $columns{$partid}+=2;
                   3570: 	}
                   3571:     }
                   3572:     foreach my $partid (@partid) {
1.324     albertel 3573: 	my $display_part=&get_display_part($partid,$symb);
1.478     albertel 3574: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
                   3575: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
                   3576: 	    '</th>';
1.54      albertel 3577: 
1.44      ng       3578:     }
1.477     albertel 3579:     $result .= &Apache::loncommon::end_data_table_header_row().
                   3580: 	&Apache::loncommon::start_data_table_header_row().
                   3581: 	$header.
                   3582: 	&Apache::loncommon::end_data_table_header_row();
                   3583:     my @noupdate;
1.126     ng       3584:     my ($updateCtr,$noupdateCtr) = (1,1);
1.257     albertel 3585:     for ($i=0; $i<$env{'form.total'}; $i++) {
1.93      albertel 3586: 	my $line;
1.257     albertel 3587: 	my $user = $env{'form.ctr'.$i};
1.281     albertel 3588: 	my ($uname,$udom)=split(/:/,$user);
1.44      ng       3589: 	my %newrecord;
                   3590: 	my $updateflag = 0;
1.281     albertel 3591: 	$line .= '<td>'.&nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
1.108     albertel 3592: 	my $usec=$classlist->{"$uname:$udom"}[5];
1.105     albertel 3593: 	if (!&canmodify($usec)) {
1.126     ng       3594: 	    my $numcols=scalar(@partid)*4+2;
1.477     albertel 3595: 	    push(@noupdate,
1.478     albertel 3596: 		 $line."<td colspan=\"$numcols\"><span class=\"LC_warning\">".
                   3597: 		 &mt('Not allowed to modify student')."</span></td></tr>");
1.105     albertel 3598: 	    next;
                   3599: 	}
1.269     raeburn  3600:         my %aggregate = ();
                   3601:         my $aggregateflag = 0;
1.281     albertel 3602: 	$user=~s/:/_/; # colon doen't work in javascript for names
1.44      ng       3603: 	foreach (@partid) {
1.257     albertel 3604: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
1.54      albertel 3605: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
                   3606: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
1.257     albertel 3607: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
                   3608: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
1.54      albertel 3609: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
                   3610: 	    my $partial   = $awarded eq '' ? '' : $pcr;
1.44      ng       3611: 	    my $score;
                   3612: 	    if ($partial eq '') {
1.257     albertel 3613: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
1.44      ng       3614: 	    } elsif ($partial > 0) {
                   3615: 		$score = 'correct_by_override';
                   3616: 	    } elsif ($partial == 0) {
                   3617: 		$score = 'incorrect_by_override';
                   3618: 	    }
1.257     albertel 3619: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
1.125     ng       3620: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
                   3621: 
1.292     albertel 3622: 	    $newrecord{'resource.'.$_.'.regrader'}=
                   3623: 		"$env{'user.name'}:$env{'user.domain'}";
1.125     ng       3624: 	    if ($dropMenu eq 'reset status' &&
                   3625: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
1.299     albertel 3626: 		$newrecord{'resource.'.$_.'.tries'} = '';
1.125     ng       3627: 		$newrecord{'resource.'.$_.'.solved'} = '';
                   3628: 		$newrecord{'resource.'.$_.'.award'} = '';
1.299     albertel 3629: 		$newrecord{'resource.'.$_.'.awarded'} = '';
1.125     ng       3630: 		$updateflag = 1;
1.269     raeburn  3631:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
                   3632:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
                   3633:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
                   3634:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
                   3635:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                   3636:                     $aggregateflag = 1;
                   3637:                 }
1.139     albertel 3638: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
                   3639: 		$updateflag = 1;
                   3640: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
                   3641: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
                   3642: 		$rec_update++;
1.125     ng       3643: 	    }
                   3644: 
1.93      albertel 3645: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
1.44      ng       3646: 		'<td align="center">'.$awarded.
                   3647: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
1.5       albertel 3648: 
1.54      albertel 3649: 
                   3650: 	    my $partid=$_;
                   3651: 	    foreach my $stores (@parts) {
                   3652: 		my ($part,$type) = &split_part_type($stores);
                   3653: 		if ($part !~ m/^\Q$partid\E/) { next;}
                   3654: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
1.257     albertel 3655: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
                   3656: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
1.54      albertel 3657: 		if ($awarded ne '' && $awarded ne $old_aw) {
                   3658: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
1.257     albertel 3659: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
1.54      albertel 3660: 		    $updateflag=1;
                   3661: 		}
1.93      albertel 3662: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
1.54      albertel 3663: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
                   3664: 	    }
1.44      ng       3665: 	}
1.477     albertel 3666: 	$line.="\n";
1.301     albertel 3667: 
                   3668: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
                   3669: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
                   3670: 
1.44      ng       3671: 	if ($updateflag) {
                   3672: 	    $count++;
1.257     albertel 3673: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
1.89      albertel 3674: 				    $udom,$uname);
1.301     albertel 3675: 
                   3676: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
                   3677: 					      $cnum,$udom,$uname)) {
                   3678: 		# need to figure out if should be in queue.
                   3679: 		my %record =  
                   3680: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
                   3681: 					     $udom,$uname);
                   3682: 		my $all_graded = 1;
                   3683: 		my $none_graded = 1;
                   3684: 		foreach my $part (@parts) {
                   3685: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
                   3686: 			$all_graded = 0;
                   3687: 		    } else {
                   3688: 			$none_graded = 0;
                   3689: 		    }
                   3690: 		}
                   3691: 
                   3692: 		if ($all_graded || $none_graded) {
                   3693: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
                   3694: 							   $symb,$cdom,$cnum,
                   3695: 							   $udom,$uname);
                   3696: 		}
                   3697: 	    }
                   3698: 
1.477     albertel 3699: 	    $result.=&Apache::loncommon::start_data_table_row().
                   3700: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
                   3701: 		&Apache::loncommon::end_data_table_row();
1.126     ng       3702: 	    $updateCtr++;
1.93      albertel 3703: 	} else {
1.477     albertel 3704: 	    push(@noupdate,
                   3705: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
1.126     ng       3706: 	    $noupdateCtr++;
1.44      ng       3707: 	}
1.269     raeburn  3708:         if ($aggregateflag) {
                   3709:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.301     albertel 3710: 				  $cdom,$cnum);
1.269     raeburn  3711:         }
1.93      albertel 3712:     }
1.477     albertel 3713:     if (@noupdate) {
1.126     ng       3714: #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
                   3715: 	my $numcols=scalar(@partid)*4+2;
1.477     albertel 3716: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
1.478     albertel 3717: 	    '<td align="center" colspan="'.$numcols.'">'.
                   3718: 	    &mt('No Changes Occurred For the Students Below').
                   3719: 	    '</td>'.
1.477     albertel 3720: 	    &Apache::loncommon::end_data_table_row();
                   3721: 	foreach my $line (@noupdate) {
                   3722: 	    $result.=
                   3723: 		&Apache::loncommon::start_data_table_row().
                   3724: 		$line.
                   3725: 		&Apache::loncommon::end_data_table_row();
                   3726: 	}
1.44      ng       3727:     }
1.614     www      3728:     $result .= &Apache::loncommon::end_data_table();
1.478     albertel 3729:     my $msg = '<p><b>'.
                   3730: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
                   3731: 	    $rec_update,$count).'</b><br />'.
                   3732: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
                   3733: 	'</b></p>';
1.44      ng       3734:     return $title.$msg.$result;
1.5       albertel 3735: }
1.54      albertel 3736: 
                   3737: sub split_part_type {
                   3738:     my ($partstr) = @_;
                   3739:     my ($temp,@allparts)=split(/_/,$partstr);
                   3740:     my $type=pop(@allparts);
1.439     albertel 3741:     my $part=join('_',@allparts);
1.54      albertel 3742:     return ($part,$type);
                   3743: }
                   3744: 
1.44      ng       3745: #------------- end of section for handling grading by section/class ---------
                   3746: #
                   3747: #----------------------------------------------------------------------------
                   3748: 
1.5       albertel 3749: 
1.44      ng       3750: #----------------------------------------------------------------------------
                   3751: #
                   3752: #-------------------------- Next few routines handles grading by csv upload
                   3753: #
                   3754: #--- Javascript to handle csv upload
1.27      albertel 3755: sub csvupload_javascript_reverse_associate {
1.573     bisitz   3756:     my $error1=&mt('You need to specify the username or the student/employee ID');
1.246     albertel 3757:     my $error2=&mt('You need to specify at least one grading field');
1.27      albertel 3758:   return(<<ENDPICK);
                   3759:   function verify(vf) {
                   3760:     var foundsomething=0;
                   3761:     var founduname=0;
1.243     albertel 3762:     var foundID=0;
1.27      albertel 3763:     for (i=0;i<=vf.nfields.value;i++) {
                   3764:       tw=eval('vf.f'+i+'.selectedIndex');
1.243     albertel 3765:       if (i==0 && tw!=0) { foundID=1; }
                   3766:       if (i==1 && tw!=0) { founduname=1; }
                   3767:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
1.27      albertel 3768:     }
1.246     albertel 3769:     if (founduname==0 && foundID==0) {
                   3770: 	alert('$error1');
                   3771: 	return;
1.27      albertel 3772:     }
                   3773:     if (foundsomething==0) {
1.246     albertel 3774: 	alert('$error2');
                   3775: 	return;
1.27      albertel 3776:     }
                   3777:     vf.submit();
                   3778:   }
                   3779:   function flip(vf,tf) {
                   3780:     var nw=eval('vf.f'+tf+'.selectedIndex');
                   3781:     var i;
                   3782:     for (i=0;i<=vf.nfields.value;i++) {
                   3783:       //can not pick the same destination field for both name and domain
                   3784:       if (((i ==0)||(i ==1)) && 
                   3785:           ((tf==0)||(tf==1)) && 
                   3786:           (i!=tf) &&
                   3787:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
                   3788:         eval('vf.f'+i+'.selectedIndex=0;')
                   3789:       }
                   3790:     }
                   3791:   }
                   3792: ENDPICK
                   3793: }
                   3794: 
                   3795: sub csvupload_javascript_forward_associate {
1.573     bisitz   3796:     my $error1=&mt('You need to specify the username or the student/employee ID');
1.246     albertel 3797:     my $error2=&mt('You need to specify at least one grading field');
1.27      albertel 3798:   return(<<ENDPICK);
                   3799:   function verify(vf) {
                   3800:     var foundsomething=0;
                   3801:     var founduname=0;
1.243     albertel 3802:     var foundID=0;
1.27      albertel 3803:     for (i=0;i<=vf.nfields.value;i++) {
                   3804:       tw=eval('vf.f'+i+'.selectedIndex');
1.243     albertel 3805:       if (tw==1) { foundID=1; }
                   3806:       if (tw==2) { founduname=1; }
                   3807:       if (tw>3) { foundsomething=1; }
1.27      albertel 3808:     }
1.246     albertel 3809:     if (founduname==0 && foundID==0) {
                   3810: 	alert('$error1');
                   3811: 	return;
1.27      albertel 3812:     }
                   3813:     if (foundsomething==0) {
1.246     albertel 3814: 	alert('$error2');
                   3815: 	return;
1.27      albertel 3816:     }
                   3817:     vf.submit();
                   3818:   }
                   3819:   function flip(vf,tf) {
                   3820:     var nw=eval('vf.f'+tf+'.selectedIndex');
                   3821:     var i;
                   3822:     //can not pick the same destination field twice
                   3823:     for (i=0;i<=vf.nfields.value;i++) {
                   3824:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
                   3825:         eval('vf.f'+i+'.selectedIndex=0;')
                   3826:       }
                   3827:     }
                   3828:   }
                   3829: ENDPICK
                   3830: }
                   3831: 
1.26      albertel 3832: sub csvuploadmap_header {
1.324     albertel 3833:     my ($request,$symb,$datatoken,$distotal)= @_;
1.41      ng       3834:     my $javascript;
1.257     albertel 3835:     if ($env{'form.upfile_associate'} eq 'reverse') {
1.41      ng       3836: 	$javascript=&csvupload_javascript_reverse_associate();
                   3837:     } else {
                   3838: 	$javascript=&csvupload_javascript_forward_associate();
                   3839:     }
1.45      ng       3840: 
1.418     albertel 3841:     $symb = &Apache::lonenc::check_encrypt($symb);
1.632     www      3842:     $request->print('<form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">'.
                   3843:                     &mt('Total number of records found in file: [_1]',$distotal).'<hr />'.
                   3844:                     &mt('Associate entries from the uploaded file with as many fields as you can.'));
                   3845:     my $reverse=&mt("Reverse Association");
1.41      ng       3846:     $request->print(<<ENDPICK);
1.632     www      3847: <br />
                   3848: <input type="button" value="$reverse" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
1.26      albertel 3849: <input type="hidden" name="associate"  value="" />
                   3850: <input type="hidden" name="phase"      value="three" />
                   3851: <input type="hidden" name="datatoken"  value="$datatoken" />
1.257     albertel 3852: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
                   3853: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
1.26      albertel 3854: <input type="hidden" name="upfile_associate" 
1.257     albertel 3855:                                        value="$env{'form.upfile_associate'}" />
1.26      albertel 3856: <input type="hidden" name="symb"       value="$symb" />
1.246     albertel 3857: <input type="hidden" name="command"    value="csvuploadoptions" />
1.26      albertel 3858: <hr />
                   3859: ENDPICK
1.597     wenzelju 3860:     $request->print(&Apache::lonhtmlcommon::scripttag($javascript));
1.118     ng       3861:     return '';
1.26      albertel 3862: 
                   3863: }
                   3864: 
                   3865: sub csvupload_fields {
1.582     raeburn  3866:     my ($symb,$errorref) = @_;
                   3867:     my (@parts) = &getpartlist($symb,$errorref);
                   3868:     if (ref($errorref)) {
                   3869:         if ($$errorref) {
                   3870:             return;
                   3871:         }
                   3872:     }
                   3873: 
1.556     weissno  3874:     my @fields=(['ID','Student/Employee ID'],
1.243     albertel 3875: 		['username','Student Username'],
                   3876: 		['domain','Student Domain']);
1.324     albertel 3877:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
1.41      ng       3878:     foreach my $part (sort(@parts)) {
                   3879: 	my @datum;
                   3880: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
                   3881: 	my $name=$part;
                   3882: 	if  (!$display) { $display = $name; }
                   3883: 	@datum=($name,$display);
1.244     albertel 3884: 	if ($name=~/^stores_(.*)_awarded/) {
                   3885: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
                   3886: 	}
1.41      ng       3887: 	push(@fields,\@datum);
                   3888:     }
                   3889:     return (@fields);
1.26      albertel 3890: }
                   3891: 
                   3892: sub csvuploadmap_footer {
1.41      ng       3893:     my ($request,$i,$keyfields) =@_;
                   3894:     $request->print(<<ENDPICK);
1.26      albertel 3895: </table>
                   3896: <input type="hidden" name="nfields" value="$i" />
                   3897: <input type="hidden" name="keyfields" value="$keyfields" />
1.589     bisitz   3898: <input type="button" onclick="javascript:verify(this.form)" value="Assign Grades" /><br />
1.26      albertel 3899: </form>
                   3900: ENDPICK
                   3901: }
                   3902: 
1.283     albertel 3903: sub checkforfile_js {
1.638     www      3904:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
1.597     wenzelju 3905:     my $result = &Apache::lonhtmlcommon::scripttag(<<CSVFORMJS);
1.86      ng       3906:     function checkUpload(formname) {
                   3907: 	if (formname.upfile.value == "") {
1.539     riegler  3908: 	    alert("$alertmsg");
1.86      ng       3909: 	    return false;
                   3910: 	}
                   3911: 	formname.submit();
                   3912:     }
                   3913: CSVFORMJS
1.283     albertel 3914:     return $result;
                   3915: }
                   3916: 
                   3917: sub upcsvScores_form {
1.608     www      3918:     my ($request,$symb) = @_;
1.283     albertel 3919:     if (!$symb) {return '';}
                   3920:     my $result=&checkforfile_js();
1.632     www      3921:     $result.=&Apache::loncommon::start_data_table().
                   3922:              &Apache::loncommon::start_data_table_header_row().
                   3923:              '<th>'.&mt('Specify a file containing the class scores for current resource.').'</th>'.
                   3924:              &Apache::loncommon::end_data_table_header_row().
                   3925:              &Apache::loncommon::start_data_table_row().'<td>';
1.370     www      3926:     my $upload=&mt("Upload Scores");
1.86      ng       3927:     my $upfile_select=&Apache::loncommon::upfile_select_html();
1.245     albertel 3928:     my $ignore=&mt('Ignore First Line');
1.418     albertel 3929:     $symb = &Apache::lonenc::check_encrypt($symb);
1.86      ng       3930:     $result.=<<ENDUPFORM;
1.106     albertel 3931: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
1.86      ng       3932: <input type="hidden" name="symb" value="$symb" />
                   3933: <input type="hidden" name="command" value="csvuploadmap" />
                   3934: $upfile_select
1.589     bisitz   3935: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
1.86      ng       3936: </form>
                   3937: ENDUPFORM
1.370     www      3938:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
1.632     www      3939:                            &mt("How do I create a CSV file from a spreadsheet")).
                   3940:              '</td>'.
                   3941:             &Apache::loncommon::end_data_table_row().
                   3942:             &Apache::loncommon::end_data_table();
1.86      ng       3943:     return $result;
                   3944: }
                   3945: 
                   3946: 
1.26      albertel 3947: sub csvuploadmap {
1.608     www      3948:     my ($request,$symb)= @_;
1.41      ng       3949:     if (!$symb) {return '';}
1.72      ng       3950: 
1.41      ng       3951:     my $datatoken;
1.257     albertel 3952:     if (!$env{'form.datatoken'}) {
1.41      ng       3953: 	$datatoken=&Apache::loncommon::upfile_store($request);
1.26      albertel 3954:     } else {
1.257     albertel 3955: 	$datatoken=$env{'form.datatoken'};
1.41      ng       3956: 	&Apache::loncommon::load_tmp_file($request);
1.26      albertel 3957:     }
1.41      ng       3958:     my @records=&Apache::loncommon::upfile_record_sep();
1.324     albertel 3959:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
1.41      ng       3960:     my ($i,$keyfields);
                   3961:     if (@records) {
1.582     raeburn  3962:         my $fieldserror;
                   3963: 	my @fields=&csvupload_fields($symb,\$fieldserror);
                   3964:         if ($fieldserror) {
                   3965:             $request->print(&navmap_errormsg());
                   3966:             return;
                   3967:         }
1.257     albertel 3968: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
1.41      ng       3969: 	    &Apache::loncommon::csv_print_samples($request,\@records);
                   3970: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
                   3971: 							  \@fields);
                   3972: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
                   3973: 	    chop($keyfields);
                   3974: 	} else {
                   3975: 	    unshift(@fields,['none','']);
                   3976: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
                   3977: 							    \@fields);
1.311     banghart 3978:             foreach my $rec (@records) {
                   3979:                 my %temp = &Apache::loncommon::record_sep($rec);
                   3980:                 if (%temp) {
                   3981:                     $keyfields=join(',',sort(keys(%temp)));
                   3982:                     last;
                   3983:                 }
                   3984:             }
1.41      ng       3985: 	}
                   3986:     }
                   3987:     &csvuploadmap_footer($request,$i,$keyfields);
1.72      ng       3988: 
1.41      ng       3989:     return '';
1.27      albertel 3990: }
                   3991: 
1.246     albertel 3992: sub csvuploadoptions {
1.608     www      3993:     my ($request,$symb)= @_;
1.632     www      3994:     my $overwrite=&mt('Overwrite any existing score');
1.246     albertel 3995:     $request->print(<<ENDPICK);
                   3996: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
                   3997: <input type="hidden" name="command"    value="csvuploadassign" />
                   3998: <p>
                   3999: <label>
                   4000:    <input type="checkbox" name="overwite_scores" checked="checked" />
1.632     www      4001:    $overwrite
1.246     albertel 4002: </label>
                   4003: </p>
                   4004: ENDPICK
                   4005:     my %fields=&get_fields();
                   4006:     if (!defined($fields{'domain'})) {
1.257     albertel 4007: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
1.632     www      4008: 	$request->print("\n<p>".&mt('Users are in domain: [_1]',$domform)."</p>\n");
1.246     albertel 4009:     }
1.257     albertel 4010:     foreach my $key (sort(keys(%env))) {
1.246     albertel 4011: 	if ($key !~ /^form\.(.*)$/) { next; }
                   4012: 	my $cleankey=$1;
                   4013: 	if ($cleankey eq 'command') { next; }
                   4014: 	$request->print('<input type="hidden" name="'.$cleankey.
1.257     albertel 4015: 			'"  value="'.$env{$key}.'" />'."\n");
1.246     albertel 4016:     }
                   4017:     # FIXME do a check for any duplicated user ids...
                   4018:     # FIXME do a check for any invalid user ids?...
1.290     albertel 4019:     $request->print('<input type="submit" value="Assign Grades" /><br />
                   4020: <hr /></form>'."\n");
1.246     albertel 4021:     return '';
                   4022: }
                   4023: 
                   4024: sub get_fields {
                   4025:     my %fields;
1.257     albertel 4026:     my @keyfields = split(/\,/,$env{'form.keyfields'});
                   4027:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
                   4028: 	if ($env{'form.upfile_associate'} eq 'reverse') {
                   4029: 	    if ($env{'form.f'.$i} ne 'none') {
                   4030: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
1.41      ng       4031: 	    }
                   4032: 	} else {
1.257     albertel 4033: 	    if ($env{'form.f'.$i} ne 'none') {
                   4034: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
1.41      ng       4035: 	    }
                   4036: 	}
1.27      albertel 4037:     }
1.246     albertel 4038:     return %fields;
                   4039: }
                   4040: 
                   4041: sub csvuploadassign {
1.608     www      4042:     my ($request,$symb)= @_;
1.246     albertel 4043:     if (!$symb) {return '';}
1.345     bowersj2 4044:     my $error_msg = '';
1.246     albertel 4045:     &Apache::loncommon::load_tmp_file($request);
                   4046:     my @gradedata = &Apache::loncommon::upfile_record_sep();
                   4047:     my %fields=&get_fields();
1.257     albertel 4048:     my $courseid=$env{'request.course.id'};
1.97      albertel 4049:     my ($classlist) = &getclasslist('all',0);
1.106     albertel 4050:     my @notallowed;
1.41      ng       4051:     my @skipped;
                   4052:     my $countdone=0;
                   4053:     foreach my $grade (@gradedata) {
                   4054: 	my %entries=&Apache::loncommon::record_sep($grade);
1.246     albertel 4055: 	my $domain;
                   4056: 	if ($entries{$fields{'domain'}}) {
                   4057: 	    $domain=$entries{$fields{'domain'}};
                   4058: 	} else {
1.257     albertel 4059: 	    $domain=$env{'form.default_domain'};
1.246     albertel 4060: 	}
1.243     albertel 4061: 	$domain=~s/\s//g;
1.41      ng       4062: 	my $username=$entries{$fields{'username'}};
1.160     albertel 4063: 	$username=~s/\s//g;
1.243     albertel 4064: 	if (!$username) {
                   4065: 	    my $id=$entries{$fields{'ID'}};
1.247     albertel 4066: 	    $id=~s/\s//g;
1.243     albertel 4067: 	    my %ids=&Apache::lonnet::idget($domain,$id);
                   4068: 	    $username=$ids{$id};
                   4069: 	}
1.41      ng       4070: 	if (!exists($$classlist{"$username:$domain"})) {
1.247     albertel 4071: 	    my $id=$entries{$fields{'ID'}};
                   4072: 	    $id=~s/\s//g;
                   4073: 	    if ($id) {
                   4074: 		push(@skipped,"$id:$domain");
                   4075: 	    } else {
                   4076: 		push(@skipped,"$username:$domain");
                   4077: 	    }
1.41      ng       4078: 	    next;
                   4079: 	}
1.108     albertel 4080: 	my $usec=$classlist->{"$username:$domain"}[5];
1.106     albertel 4081: 	if (!&canmodify($usec)) {
                   4082: 	    push(@notallowed,"$username:$domain");
                   4083: 	    next;
                   4084: 	}
1.244     albertel 4085: 	my %points;
1.41      ng       4086: 	my %grades;
                   4087: 	foreach my $dest (keys(%fields)) {
1.244     albertel 4088: 	    if ($dest eq 'ID' || $dest eq 'username' ||
                   4089: 		$dest eq 'domain') { next; }
                   4090: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
                   4091: 	    if ($dest=~/stores_(.*)_points/) {
                   4092: 		my $part=$1;
                   4093: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
                   4094: 					      $symb,$domain,$username);
1.345     bowersj2 4095:                 if ($wgt) {
                   4096:                     $entries{$fields{$dest}}=~s/\s//g;
                   4097:                     my $pcr=$entries{$fields{$dest}} / $wgt;
1.463     albertel 4098:                     my $award=($pcr == 0) ? 'incorrect_by_override'
                   4099:                                           : 'correct_by_override';
1.638     www      4100:                     if ($pcr>1) {
                   4101:                        push(@skipped,&mt("[_1]: point value larger than weight","$username:$domain"));
                   4102:                     }
1.345     bowersj2 4103:                     $grades{"resource.$part.awarded"}=$pcr;
                   4104:                     $grades{"resource.$part.solved"}=$award;
                   4105:                     $points{$part}=1;
                   4106:                 } else {
                   4107:                     $error_msg = "<br />" .
                   4108:                         &mt("Some point values were assigned"
                   4109:                             ." for problems with a weight "
                   4110:                             ."of zero. These values were "
                   4111:                             ."ignored.");
                   4112:                 }
1.244     albertel 4113: 	    } else {
                   4114: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
                   4115: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
                   4116: 		my $store_key=$dest;
                   4117: 		$store_key=~s/^stores/resource/;
                   4118: 		$store_key=~s/_/\./g;
                   4119: 		$grades{$store_key}=$entries{$fields{$dest}};
                   4120: 	    }
1.41      ng       4121: 	}
1.508     www      4122: 	if (! %grades) { 
                   4123:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
                   4124:         } else {
                   4125: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
                   4126: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
1.302     albertel 4127: 					   $env{'request.course.id'},
                   4128: 					   $domain,$username);
1.508     www      4129: 	   if ($result eq 'ok') {
1.627     www      4130: # Successfully stored
1.508     www      4131: 	      $request->print('.');
1.627     www      4132: # Remove from grading queue
                   4133:               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
                   4134:                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
                   4135:                                              $env{'course.'.$env{'request.course.id'}.'.num'},
                   4136:                                              $domain,$username);
                   4137:               $countdone++;
                   4138:            } else {
1.508     www      4139: 	      $request->print("<p><span class=\"LC_error\">".
                   4140:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
                   4141:                                   "$username:$domain",$result)."</span></p>");
                   4142: 	   }
                   4143: 	   $request->rflush();
                   4144:         }
1.41      ng       4145:     }
1.570     www      4146:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
1.41      ng       4147:     if (@skipped) {
1.571     www      4148: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
                   4149:         $request->print(join(', ',@skipped));
1.106     albertel 4150:     }
                   4151:     if (@notallowed) {
1.571     www      4152: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
                   4153: 	$request->print(join(', ',@notallowed));
1.41      ng       4154:     }
1.106     albertel 4155:     $request->print("<br />\n");
1.345     bowersj2 4156:     return $error_msg;
1.26      albertel 4157: }
1.44      ng       4158: #------------- end of section for handling csv file upload ---------
                   4159: #
                   4160: #-------------------------------------------------------------------
                   4161: #
1.122     ng       4162: #-------------- Next few routines handle grading by page/sequence
1.72      ng       4163: #
                   4164: #--- Select a page/sequence and a student to grade
1.68      ng       4165: sub pickStudentPage {
1.608     www      4166:     my ($request,$symb) = @_;
1.68      ng       4167: 
1.539     riegler  4168:     my $alertmsg = &mt('Please select the student you wish to grade.');
1.597     wenzelju 4169:     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
1.68      ng       4170: 
                   4171: function checkPickOne(formname) {
1.76      ng       4172:     if (radioSelection(formname.student) == null) {
1.539     riegler  4173: 	alert("$alertmsg");
1.68      ng       4174: 	return;
                   4175:     }
1.125     ng       4176:     ptr = pullDownSelection(formname.selectpage);
                   4177:     formname.page.value = formname["page"+ptr].value;
                   4178:     formname.title.value = formname["title"+ptr].value;
1.68      ng       4179:     formname.submit();
                   4180: }
                   4181: 
                   4182: LISTJAVASCRIPT
1.118     ng       4183:     &commonJSfunctions($request);
1.608     www      4184: 
1.257     albertel 4185:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
                   4186:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
                   4187:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
1.68      ng       4188: 
1.398     albertel 4189:     my $result='<h3><span class="LC_info">&nbsp;'.
1.485     albertel 4190: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
1.68      ng       4191: 
1.80      ng       4192:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
1.582     raeburn  4193:     my $map_error;
                   4194:     my ($titles,$symbx) = &getSymbMap($map_error);
                   4195:     if ($map_error) {
                   4196:         $request->print(&navmap_errormsg());
                   4197:         return; 
                   4198:     }
1.137     albertel 4199:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
                   4200: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
                   4201: #    my $type=($curpage =~ /\.(page|sequence)/);
1.485     albertel 4202:     my $select = '<select name="selectpage">'."\n";
1.70      ng       4203:     my $ctr=0;
1.68      ng       4204:     foreach (@$titles) {
                   4205: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
1.485     albertel 4206: 	$select.='<option value="'.$ctr.'" '.
1.401     albertel 4207: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
1.71      ng       4208: 	    '>'.$showtitle.'</option>'."\n";
1.70      ng       4209: 	$ctr++;
1.68      ng       4210:     }
1.485     albertel 4211:     $select.= '</select>';
1.539     riegler  4212:     $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
1.485     albertel 4213: 
1.70      ng       4214:     $ctr=0;
                   4215:     foreach (@$titles) {
                   4216: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
                   4217: 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
                   4218: 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
                   4219: 	$ctr++;
                   4220:     }
1.72      ng       4221:     $result.='<input type="hidden" name="page" />'."\n".
                   4222: 	'<input type="hidden" name="title" />'."\n";
1.68      ng       4223: 
1.485     albertel 4224:     my $options =
                   4225: 	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
                   4226: 	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
1.539     riegler  4227:     $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
1.485     albertel 4228: 
                   4229:     $options =
                   4230: 	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
                   4231: 	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
                   4232: 	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
1.539     riegler  4233:     $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
1.432     banghart 4234:     
                   4235:     $result.=&build_section_inputs();
1.442     banghart 4236:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
                   4237:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
1.72      ng       4238: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
1.613     www      4239: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."<br />\n";
1.72      ng       4240: 
1.539     riegler  4241:     $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
1.382     albertel 4242: 
1.80      ng       4243:     $result.='&nbsp;<input type="button" '.
1.589     bisitz   4244:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
1.72      ng       4245: 
1.68      ng       4246:     $request->print($result);
                   4247: 
1.485     albertel 4248:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
1.484     albertel 4249: 	&Apache::loncommon::start_data_table().
                   4250: 	&Apache::loncommon::start_data_table_header_row().
1.485     albertel 4251: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
1.484     albertel 4252: 	'<th>'.&nameUserString('header').'</th>'.
1.485     albertel 4253: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
1.484     albertel 4254: 	'<th>'.&nameUserString('header').'</th>'.
                   4255: 	&Apache::loncommon::end_data_table_header_row();
1.68      ng       4256:  
1.76      ng       4257:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
1.68      ng       4258:     my $ptr = 1;
1.294     albertel 4259:     foreach my $student (sort 
                   4260: 			 {
                   4261: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
                   4262: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
                   4263: 			     }
                   4264: 			     return $a cmp $b;
                   4265: 			 } (keys(%$fullname))) {
1.68      ng       4266: 	my ($uname,$udom) = split(/:/,$student);
1.484     albertel 4267: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
                   4268:                                   : '</td>');
1.126     ng       4269: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
1.288     albertel 4270: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
                   4271: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
1.484     albertel 4272: 	$studentTable.=
                   4273: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
                   4274:                          : '');
1.68      ng       4275: 	$ptr++;
                   4276:     }
1.484     albertel 4277:     if ($ptr%2 == 0) {
                   4278: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
                   4279: 	    &Apache::loncommon::end_data_table_row();
                   4280:     }
                   4281:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
1.126     ng       4282:     $studentTable.='<input type="button" '.
1.589     bisitz   4283:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
1.68      ng       4284: 
                   4285:     $request->print($studentTable);
                   4286: 
                   4287:     return '';
                   4288: }
                   4289: 
                   4290: sub getSymbMap {
1.582     raeburn  4291:     my ($map_error) = @_;
1.132     bowersj2 4292:     my $navmap = Apache::lonnavmaps::navmap->new();
1.582     raeburn  4293:     unless (ref($navmap)) {
                   4294:         if (ref($map_error)) {
                   4295:             $$map_error = 'navmap';
                   4296:         }
                   4297:         return;
                   4298:     }
1.68      ng       4299:     my %symbx = ();
                   4300:     my @titles = ();
1.117     bowersj2 4301:     my $minder = 0;
                   4302: 
                   4303:     # Gather every sequence that has problems.
1.240     albertel 4304:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
                   4305: 					       1,0,1);
1.117     bowersj2 4306:     for my $sequence ($navmap->getById('0.0'), @sequences) {
1.241     albertel 4307: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
1.381     albertel 4308: 	    my $title = $minder.'.'.
                   4309: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
                   4310: 	    push(@titles, $title); # minder in case two titles are identical
                   4311: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
1.117     bowersj2 4312: 	    $minder++;
1.241     albertel 4313: 	}
1.68      ng       4314:     }
                   4315:     return \@titles,\%symbx;
                   4316: }
                   4317: 
1.72      ng       4318: #
                   4319: #--- Displays a page/sequence w/wo problems, w/wo submissions
1.68      ng       4320: sub displayPage {
1.608     www      4321:     my ($request,$symb) = @_;
1.257     albertel 4322:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
                   4323:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
                   4324:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
                   4325:     my $pageTitle = $env{'form.page'};
1.103     albertel 4326:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
1.257     albertel 4327:     my ($uname,$udom) = split(/:/,$env{'form.student'});
                   4328:     my $usec=$classlist->{$env{'form.student'}}[5];
1.168     albertel 4329: 
                   4330:     #need to make sure we have the correct data for later EXT calls, 
                   4331:     #thus invalidate the cache
                   4332:     &Apache::lonnet::devalidatecourseresdata(
1.257     albertel 4333:                  $env{'course.'.$env{'request.course.id'}.'.num'},
                   4334:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
1.168     albertel 4335:     &Apache::lonnet::clear_EXT_cache_status();
                   4336: 
1.103     albertel 4337:     if (!&canview($usec)) {
1.485     albertel 4338: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested student. ([_1])',$env{'form.student'}).'</span>');
1.103     albertel 4339: 	return;
                   4340:     }
1.398     albertel 4341:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
1.485     albertel 4342:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
1.129     ng       4343: 	'</h3>'."\n";
1.500     albertel 4344:     $env{'form.CODE'} = uc($env{'form.CODE'});
1.501     foxr     4345:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
1.485     albertel 4346: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
1.382     albertel 4347:     } else {
                   4348: 	delete($env{'form.CODE'});
                   4349:     }
1.71      ng       4350:     &sub_page_js($request);
                   4351:     $request->print($result);
                   4352: 
1.132     bowersj2 4353:     my $navmap = Apache::lonnavmaps::navmap->new();
1.582     raeburn  4354:     unless (ref($navmap)) {
                   4355:         $request->print(&navmap_errormsg());
                   4356:         return;
                   4357:     }
1.257     albertel 4358:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
1.68      ng       4359:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
1.288     albertel 4360:     if (!$map) {
1.485     albertel 4361: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
1.288     albertel 4362: 	return; 
                   4363:     }
1.68      ng       4364:     my $iterator = $navmap->getIterator($map->map_start(),
                   4365: 					$map->map_finish());
                   4366: 
1.71      ng       4367:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
1.72      ng       4368: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
1.257     albertel 4369: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
                   4370: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
1.72      ng       4371: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
1.257     albertel 4372: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
1.418     albertel 4373: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
1.613     www      4374: 	'<input type="hidden" name="overRideScore" value="no" />'."\n";
1.71      ng       4375: 
1.382     albertel 4376:     if (defined($env{'form.CODE'})) {
                   4377: 	$studentTable.=
                   4378: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
                   4379:     }
1.381     albertel 4380:     my $checkIcon = '<img alt="'.&mt('Check Mark').
1.485     albertel 4381: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
1.71      ng       4382: 
1.594     bisitz   4383:     $studentTable.='&nbsp;<span class="LC_info">'.
                   4384:         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
                   4385:         '</span>'."\n".
1.484     albertel 4386: 	&Apache::loncommon::start_data_table().
                   4387: 	&Apache::loncommon::start_data_table_header_row().
                   4388: 	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
1.485     albertel 4389: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
1.484     albertel 4390: 	&Apache::loncommon::end_data_table_header_row();
1.71      ng       4391: 
1.329     albertel 4392:     &Apache::lonxml::clear_problem_counter();
1.196     albertel 4393:     my ($depth,$question,$prob) = (1,1,1);
1.68      ng       4394:     $iterator->next(); # skip the first BEGIN_MAP
                   4395:     my $curRes = $iterator->next(); # for "current resource"
1.101     albertel 4396:     while ($depth > 0) {
1.68      ng       4397:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
1.100     bowersj2 4398:         if($curRes == $iterator->END_MAP) { $depth--; }
1.68      ng       4399: 
1.385     albertel 4400:         if (ref($curRes) && $curRes->is_problem()) {
1.91      albertel 4401: 	    my $parts = $curRes->parts();
1.68      ng       4402:             my $title = $curRes->compTitle();
1.71      ng       4403: 	    my $symbx = $curRes->symb();
1.484     albertel 4404: 	    $studentTable.=
                   4405: 		&Apache::loncommon::start_data_table_row().
                   4406: 		'<td align="center" valign="top" >'.$prob.
1.485     albertel 4407: 		(scalar(@{$parts}) == 1 ? '' 
1.640     raeburn  4408: 		                        : '<br />('.&mt('[_1]parts)',
                   4409: 							scalar(@{$parts}).'&nbsp;')
1.485     albertel 4410: 		 ).
                   4411: 		 '</td>';
1.71      ng       4412: 	    $studentTable.='<td valign="top">';
1.382     albertel 4413: 	    my %form = ('CODE' => $env{'form.CODE'},);
1.257     albertel 4414: 	    if ($env{'form.vProb'} eq 'yes' ) {
1.144     albertel 4415: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
1.383     albertel 4416: 					     undef,'both',\%form);
1.71      ng       4417: 	    } else {
1.382     albertel 4418: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
1.80      ng       4419: 		$companswer =~ s|<form(.*?)>||g;
                   4420: 		$companswer =~ s|</form>||g;
1.71      ng       4421: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
1.116     ng       4422: #		    $companswer =~ s/$1/ /ms;
1.326     albertel 4423: #		    $request->print('match='.$1."<br />\n");
1.71      ng       4424: #		}
1.116     ng       4425: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
1.539     riegler  4426: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
1.71      ng       4427: 	    }
                   4428: 
1.257     albertel 4429: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
1.125     ng       4430: 
1.257     albertel 4431: 	    if ($env{'form.lastSub'} eq 'datesub') {
1.71      ng       4432: 		if ($record{'version'} eq '') {
1.485     albertel 4433: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
1.71      ng       4434: 		} else {
1.116     ng       4435: 		    my %responseType = ();
                   4436: 		    foreach my $partid (@{$parts}) {
1.147     albertel 4437: 			my @responseIds =$curRes->responseIds($partid);
                   4438: 			my @responseType =$curRes->responseType($partid);
                   4439: 			my %responseIds;
                   4440: 			for (my $i=0;$i<=$#responseIds;$i++) {
                   4441: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
                   4442: 			}
                   4443: 			$responseType{$partid} = \%responseIds;
1.116     ng       4444: 		    }
1.148     albertel 4445: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
1.147     albertel 4446: 
1.71      ng       4447: 		}
1.257     albertel 4448: 	    } elsif ($env{'form.lastSub'} eq 'all') {
                   4449: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
1.71      ng       4450: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
1.257     albertel 4451: 									$env{'request.course.id'},
1.71      ng       4452: 									'','.submission');
                   4453:  
                   4454: 	    }
1.103     albertel 4455: 	    if (&canmodify($usec)) {
1.585     bisitz   4456:             $studentTable.=&gradeBox_start();
1.103     albertel 4457: 		foreach my $partid (@{$parts}) {
                   4458: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
                   4459: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
                   4460: 		    $question++;
                   4461: 		}
1.585     bisitz   4462:             $studentTable.=&gradeBox_end();
1.196     albertel 4463: 		$prob++;
1.71      ng       4464: 	    }
                   4465: 	    $studentTable.='</td></tr>';
1.68      ng       4466: 
1.103     albertel 4467: 	}
1.68      ng       4468:         $curRes = $iterator->next();
                   4469:     }
                   4470: 
1.589     bisitz   4471:     $studentTable.=
                   4472:         '</table>'."\n".
                   4473:         '<input type="button" value="'.&mt('Save').'" '.
                   4474:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
                   4475:         '</form>'."\n";
1.71      ng       4476:     $request->print($studentTable);
                   4477: 
                   4478:     return '';
1.119     ng       4479: }
                   4480: 
                   4481: sub displaySubByDates {
1.148     albertel 4482:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
1.224     albertel 4483:     my $isCODE=0;
1.335     albertel 4484:     my $isTask = ($symb =~/\.task$/);
1.224     albertel 4485:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
1.467     albertel 4486:     my $studentTable=&Apache::loncommon::start_data_table().
                   4487: 	&Apache::loncommon::start_data_table_header_row().
                   4488: 	'<th>'.&mt('Date/Time').'</th>'.
                   4489: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
                   4490: 	'<th>'.&mt('Submission').'</th>'.
                   4491: 	'<th>'.&mt('Status').'</th>'.
                   4492: 	&Apache::loncommon::end_data_table_header_row();
1.119     ng       4493:     my ($version);
                   4494:     my %mark;
1.148     albertel 4495:     my %orders;
1.119     ng       4496:     $mark{'correct_by_student'} = $checkIcon;
1.147     albertel 4497:     if (!exists($$record{'1:timestamp'})) {
1.539     riegler  4498: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
1.147     albertel 4499:     }
1.335     albertel 4500: 
                   4501:     my $interaction;
1.525     raeburn  4502:     my $no_increment = 1;
1.640     raeburn  4503:     my %lastrndseed;
1.119     ng       4504:     for ($version=1;$version<=$$record{'version'};$version++) {
1.467     albertel 4505: 	my $timestamp = 
                   4506: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
1.335     albertel 4507: 	if (exists($$record{$version.':resource.0.version'})) {
                   4508: 	    $interaction = $$record{$version.':resource.0.version'};
                   4509: 	}
                   4510: 
                   4511: 	my $where = ($isTask ? "$version:resource.$interaction"
                   4512: 		             : "$version:resource");
1.467     albertel 4513: 	$studentTable.=&Apache::loncommon::start_data_table_row().
                   4514: 	    '<td>'.$timestamp.'</td>';
1.224     albertel 4515: 	if ($isCODE) {
                   4516: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
                   4517: 	}
1.119     ng       4518: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
                   4519: 	my @displaySub = ();
                   4520: 	foreach my $partid (@{$parts}) {
1.640     raeburn  4521:             my ($hidden,$type);
                   4522:             $type = $$record{$version.':resource.'.$partid.'.type'};
                   4523:             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
1.596     raeburn  4524:                 $hidden = 1;
                   4525:             }
1.335     albertel 4526: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
                   4527: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
                   4528: 	    
1.122     ng       4529: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
1.324     albertel 4530: 	    my $display_part=&get_display_part($partid,$symb);
1.147     albertel 4531: 	    foreach my $matchKey (@matchKey) {
1.198     albertel 4532: 		if (exists($$record{$version.':'.$matchKey}) &&
                   4533: 		    $$record{$version.':'.$matchKey} ne '') {
1.596     raeburn  4534:                     
1.335     albertel 4535: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
                   4536: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
1.577     bisitz   4537:                     $displaySub[0].='<span class="LC_nobreak"';
                   4538:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
                   4539:                                    .' <span class="LC_internal_info">'
1.625     www      4540:                                    .'('.&mt('Response ID: [_1]',$responseId).')'
1.577     bisitz   4541:                                    .'</span>'
                   4542:                                    .' <b>';
1.596     raeburn  4543:                     if ($hidden) {
                   4544:                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
                   4545:                     } else {
1.640     raeburn  4546:                         my ($trial,$rndseed,$newvariation);
                   4547:                         if ($type eq 'randomizetry') {
                   4548:                             $trial = $$record{"$where.$partid.tries"};
                   4549:                             $rndseed = $$record{"$where.$partid.rndseed"};
                   4550:                         }
1.596     raeburn  4551: 		        if ($$record{"$where.$partid.tries"} eq '') {
                   4552: 			    $displaySub[0].=&mt('Trial not counted');
                   4553: 		        } else {
                   4554: 			    $displaySub[0].=&mt('Trial: [_1]',
1.467     albertel 4555: 					    $$record{"$where.$partid.tries"});
1.640     raeburn  4556:                             if ($rndseed || $lastrndseed{$partid}) {
                   4557:                                 if ($rndseed ne $lastrndseed{$partid}) {
                   4558:                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
                   4559:                                 }
                   4560:                             }
                   4561:                             $lastrndseed{$partid} = $rndseed;
1.596     raeburn  4562: 		        }
                   4563: 		        my $responseType=($isTask ? 'Task'
1.335     albertel 4564:                                               : $responseType->{$partid}->{$responseId});
1.596     raeburn  4565: 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
1.640     raeburn  4566: 		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
1.596     raeburn  4567: 			    $orders{$partid}->{$responseId}=
                   4568: 			        &get_order($partid,$responseId,$symb,$uname,$udom,
1.640     raeburn  4569:                                            $no_increment,$type,$trial,$rndseed);
1.596     raeburn  4570: 		        }
1.640     raeburn  4571: 		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
1.596     raeburn  4572: 		        $displaySub[0].='&nbsp; '.
1.640     raeburn  4573: 			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
1.596     raeburn  4574:                     }
1.147     albertel 4575: 		}
                   4576: 	    }
1.335     albertel 4577: 	    if (exists($$record{"$where.$partid.checkedin"})) {
1.485     albertel 4578: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
                   4579: 				    $$record{"$where.$partid.checkedin"},
                   4580: 				    $$record{"$where.$partid.checkedin.slot"}).
                   4581: 					'<br />';
1.335     albertel 4582: 	    }
                   4583: 	    if (exists $$record{"$where.$partid.award"}) {
1.485     albertel 4584: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
1.335     albertel 4585: 		    lc($$record{"$where.$partid.award"}).' '.
                   4586: 		    $mark{$$record{"$where.$partid.solved"}}.
1.147     albertel 4587: 		    '<br />';
                   4588: 	    }
1.335     albertel 4589: 	    if (exists $$record{"$where.$partid.regrader"}) {
                   4590: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
                   4591: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
                   4592: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
                   4593: 		$displaySub[2].=
                   4594: 		    $$record{"$version:resource.$partid.regrader"}.
1.207     albertel 4595: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
1.147     albertel 4596: 	    }
                   4597: 	}
                   4598: 	# needed because old essay regrader has not parts info
                   4599: 	if (exists $$record{"$version:resource.regrader"}) {
                   4600: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
                   4601: 	}
                   4602: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
                   4603: 	if ($displaySub[2]) {
1.467     albertel 4604: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
1.147     albertel 4605: 	}
1.467     albertel 4606: 	$studentTable.='&nbsp;</td>'.
                   4607: 	    &Apache::loncommon::end_data_table_row();
1.119     ng       4608:     }
1.467     albertel 4609:     $studentTable.=&Apache::loncommon::end_data_table();
1.119     ng       4610:     return $studentTable;
1.71      ng       4611: }
                   4612: 
                   4613: sub updateGradeByPage {
1.608     www      4614:     my ($request,$symb) = @_;
1.71      ng       4615: 
1.257     albertel 4616:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
                   4617:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
                   4618:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
                   4619:     my $pageTitle = $env{'form.page'};
1.103     albertel 4620:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
1.257     albertel 4621:     my ($uname,$udom) = split(/:/,$env{'form.student'});
                   4622:     my $usec=$classlist->{$env{'form.student'}}[5];
1.103     albertel 4623:     if (!&canmodify($usec)) {
1.526     raeburn  4624: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
1.103     albertel 4625: 	return;
                   4626:     }
1.398     albertel 4627:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
1.526     raeburn  4628:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
1.129     ng       4629: 	'</h3>'."\n";
1.70      ng       4630: 
1.68      ng       4631:     $request->print($result);
                   4632: 
1.582     raeburn  4633: 
1.132     bowersj2 4634:     my $navmap = Apache::lonnavmaps::navmap->new();
1.582     raeburn  4635:     unless (ref($navmap)) {
                   4636:         $request->print(&navmap_errormsg());
                   4637:         return;
                   4638:     }
1.257     albertel 4639:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
1.71      ng       4640:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
1.288     albertel 4641:     if (!$map) {
1.527     raeburn  4642: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
1.288     albertel 4643: 	return; 
                   4644:     }
1.71      ng       4645:     my $iterator = $navmap->getIterator($map->map_start(),
                   4646: 					$map->map_finish());
1.70      ng       4647: 
1.484     albertel 4648:     my $studentTable=
                   4649: 	&Apache::loncommon::start_data_table().
                   4650: 	&Apache::loncommon::start_data_table_header_row().
1.485     albertel 4651: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
                   4652: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
                   4653: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
                   4654: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
1.484     albertel 4655: 	&Apache::loncommon::end_data_table_header_row();
1.71      ng       4656: 
                   4657:     $iterator->next(); # skip the first BEGIN_MAP
                   4658:     my $curRes = $iterator->next(); # for "current resource"
1.196     albertel 4659:     my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
1.101     albertel 4660:     while ($depth > 0) {
1.71      ng       4661:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
1.100     bowersj2 4662:         if($curRes == $iterator->END_MAP) { $depth--; }
1.71      ng       4663: 
1.385     albertel 4664:         if (ref($curRes) && $curRes->is_problem()) {
1.91      albertel 4665: 	    my $parts = $curRes->parts();
1.71      ng       4666:             my $title = $curRes->compTitle();
                   4667: 	    my $symbx = $curRes->symb();
1.484     albertel 4668: 	    $studentTable.=
                   4669: 		&Apache::loncommon::start_data_table_row().
                   4670: 		'<td align="center" valign="top" >'.$prob.
1.485     albertel 4671: 		(scalar(@{$parts}) == 1 ? '' 
1.640     raeburn  4672:                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
1.526     raeburn  4673: 		.')').'</td>';
1.71      ng       4674: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
                   4675: 
                   4676: 	    my %newrecord=();
                   4677: 	    my @displayPts=();
1.269     raeburn  4678:             my %aggregate = ();
                   4679:             my $aggregateflag = 0;
1.71      ng       4680: 	    foreach my $partid (@{$parts}) {
1.257     albertel 4681: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
                   4682: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
1.71      ng       4683: 
1.257     albertel 4684: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
                   4685: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
1.71      ng       4686: 		my $partial = $newpts/$wgt;
                   4687: 		my $score;
                   4688: 		if ($partial > 0) {
                   4689: 		    $score = 'correct_by_override';
1.125     ng       4690: 		} elsif ($newpts ne '') { #empty is taken as 0
1.71      ng       4691: 		    $score = 'incorrect_by_override';
                   4692: 		}
1.257     albertel 4693: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
1.125     ng       4694: 		if ($dropMenu eq 'excused') {
1.71      ng       4695: 		    $partial = '';
                   4696: 		    $score = 'excused';
1.125     ng       4697: 		} elsif ($dropMenu eq 'reset status'
1.257     albertel 4698: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
1.125     ng       4699: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
                   4700: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
                   4701: 		    $newrecord{'resource.'.$partid.'.award'} = '';
                   4702: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
1.257     albertel 4703: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
1.125     ng       4704: 		    $changeflag++;
                   4705: 		    $newpts = '';
1.269     raeburn  4706:                     
                   4707:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
                   4708:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
                   4709:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
                   4710:                     if ($aggtries > 0) {
                   4711:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
                   4712:                         $aggregateflag = 1;
                   4713:                     }
1.71      ng       4714: 		}
1.324     albertel 4715: 		my $display_part=&get_display_part($partid,$curRes->symb());
1.257     albertel 4716: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
1.526     raeburn  4717: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
1.71      ng       4718: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
1.326     albertel 4719: 		    '&nbsp;<br />';
1.526     raeburn  4720: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
1.125     ng       4721: 		     (($score eq 'excused') ? 'excused' : $newpts).
1.326     albertel 4722: 		    '&nbsp;<br />';
1.71      ng       4723: 		$question++;
1.380     albertel 4724: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
1.125     ng       4725: 
1.71      ng       4726: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
1.125     ng       4727: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
1.257     albertel 4728: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
1.125     ng       4729: 		    if (scalar(keys(%newrecord)) > 0);
1.71      ng       4730: 
                   4731: 		$changeflag++;
                   4732: 	    }
                   4733: 	    if (scalar(keys(%newrecord)) > 0) {
1.382     albertel 4734: 		my %record = 
                   4735: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
                   4736: 					     $udom,$uname);
                   4737: 
                   4738: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
                   4739: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
                   4740: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
                   4741: 		    $newrecord{'resource.CODE'} = '';
                   4742: 		}
1.257     albertel 4743: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
1.71      ng       4744: 					$udom,$uname);
1.382     albertel 4745: 		%record = &Apache::lonnet::restore($symbx,
                   4746: 						   $env{'request.course.id'},
                   4747: 						   $udom,$uname);
1.380     albertel 4748: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
                   4749: 					     $cdom,$cnum,$udom,$uname);
1.71      ng       4750: 	    }
1.380     albertel 4751: 	    
1.269     raeburn  4752:             if ($aggregateflag) {
                   4753:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
                   4754:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
                   4755:                       $env{'course.'.$env{'request.course.id'}.'.num'});
                   4756:             }
1.125     ng       4757: 
1.71      ng       4758: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
                   4759: 		'<td valign="top">'.$displayPts[1].'</td>'.
1.484     albertel 4760: 		&Apache::loncommon::end_data_table_row();
1.68      ng       4761: 
1.196     albertel 4762: 	    $prob++;
1.68      ng       4763: 	}
1.71      ng       4764:         $curRes = $iterator->next();
1.68      ng       4765:     }
1.98      albertel 4766: 
1.484     albertel 4767:     $studentTable.=&Apache::loncommon::end_data_table();
1.526     raeburn  4768:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
                   4769: 		  &mt('The scores were changed for [quant,_1,problem].',
                   4770: 		  $changeflag));
1.76      ng       4771:     $request->print($grademsg.$studentTable);
1.68      ng       4772: 
1.70      ng       4773:     return '';
                   4774: }
                   4775: 
1.72      ng       4776: #-------- end of section for handling grading by page/sequence ---------
                   4777: #
                   4778: #-------------------------------------------------------------------
                   4779: 
1.581     www      4780: #-------------------- Bubblesheet (Scantron) Grading -------------------
1.75      albertel 4781: #
                   4782: #------ start of section for handling grading by page/sequence ---------
                   4783: 
1.423     albertel 4784: =pod
                   4785: 
                   4786: =head1 Bubble sheet grading routines
                   4787: 
1.424     albertel 4788:   For this documentation:
                   4789: 
                   4790:    'scanline' refers to the full line of characters
                   4791:    from the file that we are parsing that represents one entire sheet
                   4792: 
                   4793:    'bubble line' refers to the data
                   4794:    representing the line of bubbles that are on the physical bubble sheet
                   4795: 
                   4796: 
                   4797: The overall process is that a scanned in bubble sheet data is uploaded
                   4798: into a course. When a user wants to grade, they select a
                   4799: sequence/folder of resources, a file of bubble sheet info, and pick
                   4800: one of the predefined configurations for what each scanline looks
                   4801: like.
                   4802: 
                   4803: Next each scanline is checked for any errors of either 'missing
1.435     foxr     4804: bubbles' (it's an error because it may have been mis-scanned
1.424     albertel 4805: because too light bubbling), 'double bubble' (each bubble line should
                   4806: have no more that one letter picked), invalid or duplicated CODE,
1.556     weissno  4807: invalid student/employee ID
1.424     albertel 4808: 
                   4809: If the CODE option is used that determines the randomization of the
1.556     weissno  4810: homework problems, either way the student/employee ID is looked up into a
1.424     albertel 4811: username:domain.
                   4812: 
                   4813: During the validation phase the instructor can choose to skip scanlines. 
                   4814: 
1.435     foxr     4815: After the validation phase, there are now 3 bubble sheet files
1.424     albertel 4816: 
                   4817:   scantron_original_filename (unmodified original file)
                   4818:   scantron_corrected_filename (file where the corrected information has replaced the original information)
                   4819:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
                   4820: 
                   4821: Also there is a separate hash nohist_scantrondata that contains extra
                   4822: correction information that isn't representable in the bubble sheet
                   4823: file (see &scantron_getfile() for more information)
                   4824: 
                   4825: After all scanlines are either valid, marked as valid or skipped, then
                   4826: foreach line foreach problem in the picked sequence, an ssi request is
                   4827: made that simulates a user submitting their selected letter(s) against
                   4828: the homework problem.
1.423     albertel 4829: 
                   4830: =over 4
                   4831: 
                   4832: 
                   4833: 
                   4834: =item defaultFormData
                   4835: 
                   4836:   Returns html hidden inputs used to hold context/default values.
                   4837: 
                   4838:  Arguments:
                   4839:   $symb - $symb of the current resource 
                   4840: 
                   4841: =cut
1.422     foxr     4842: 
1.81      albertel 4843: sub defaultFormData {
1.324     albertel 4844:     my ($symb)=@_;
1.613     www      4845:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />';
1.81      albertel 4846: }
                   4847: 
1.447     foxr     4848: 
1.423     albertel 4849: =pod 
                   4850: 
                   4851: =item getSequenceDropDown
                   4852: 
                   4853:    Return html dropdown of possible sequences to grade
                   4854:  
                   4855:  Arguments:
1.582     raeburn  4856:    $symb - $symb of the current resource
                   4857:    $map_error - ref to scalar which will container error if
                   4858:                 $navmap object is unavailable in &getSymbMap().
1.423     albertel 4859: 
                   4860: =cut
1.422     foxr     4861: 
1.75      albertel 4862: sub getSequenceDropDown {
1.582     raeburn  4863:     my ($symb,$map_error)=@_;
1.75      albertel 4864:     my $result='<select name="selectpage">'."\n";
1.582     raeburn  4865:     my ($titles,$symbx) = &getSymbMap($map_error);
                   4866:     if (ref($map_error)) {
                   4867:         return if ($$map_error);
                   4868:     }
1.137     albertel 4869:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
1.75      albertel 4870:     my $ctr=0;
                   4871:     foreach (@$titles) {
                   4872: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
                   4873: 	$result.='<option value="'.$$symbx{$_}.'" '.
1.401     albertel 4874: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
1.75      albertel 4875: 	    '>'.$showtitle.'</option>'."\n";
                   4876: 	$ctr++;
                   4877:     }
                   4878:     $result.= '</select>';
                   4879:     return $result;
                   4880: }
                   4881: 
1.495     albertel 4882: my %bubble_lines_per_response;     # no. bubble lines for each response.
1.554     raeburn  4883:                                    # key is zero-based index - 0, 1, 2 ...
1.495     albertel 4884: 
                   4885: my %first_bubble_line;             # First bubble line no. for each bubble.
                   4886: 
1.509     raeburn  4887: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
                   4888:                                    # matchresponse or rankresponse, where 
                   4889:                                    # an individual response can have multiple 
                   4890:                                    # lines
1.503     raeburn  4891: 
                   4892: my %responsetype_per_response;     # responsetype for each response
                   4893: 
1.495     albertel 4894: # Save and restore the bubble lines array to the form env.
                   4895: 
                   4896: 
                   4897: sub save_bubble_lines {
                   4898:     foreach my $line (keys(%bubble_lines_per_response)) {
                   4899: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
                   4900: 	$env{"form.scantron.first_bubble_line.$line"} =
                   4901: 	    $first_bubble_line{$line};
1.503     raeburn  4902:         $env{"form.scantron.sub_bubblelines.$line"} = 
                   4903:             $subdivided_bubble_lines{$line};
                   4904:         $env{"form.scantron.responsetype.$line"} =
                   4905:             $responsetype_per_response{$line};
1.495     albertel 4906:     }
                   4907: }
                   4908: 
                   4909: 
                   4910: sub restore_bubble_lines {
                   4911:     my $line = 0;
                   4912:     %bubble_lines_per_response = ();
                   4913:     while ($env{"form.scantron.bubblelines.$line"}) {
                   4914: 	my $value = $env{"form.scantron.bubblelines.$line"};
                   4915: 	$bubble_lines_per_response{$line} = $value;
                   4916: 	$first_bubble_line{$line}  =
                   4917: 	    $env{"form.scantron.first_bubble_line.$line"};
1.503     raeburn  4918:         $subdivided_bubble_lines{$line} =
                   4919:             $env{"form.scantron.sub_bubblelines.$line"};
                   4920:         $responsetype_per_response{$line} =
                   4921:             $env{"form.scantron.responsetype.$line"};
1.495     albertel 4922: 	$line++;
                   4923:     }
                   4924: }
                   4925: 
                   4926: #  Given the parsed scanline, get the response for 
                   4927: #  'answer' number n:
                   4928: 
                   4929: sub get_response_bubbles {
                   4930:     my ($parsed_line, $response)  = @_;
                   4931: 
                   4932:     my $bubble_line = $first_bubble_line{$response-1} +1;
                   4933:     my $bubble_lines= $bubble_lines_per_response{$response-1};
                   4934:     
                   4935:     my $selected = "";
                   4936: 
                   4937:     for (my $bline = 0; $bline < $bubble_lines; $bline++) {
                   4938: 	$selected .= $$parsed_line{"scantron.$bubble_line.answer"}.":";
                   4939: 	$bubble_line++;
                   4940:     }
                   4941:     return $selected;
                   4942: }
1.423     albertel 4943: 
                   4944: =pod 
                   4945: 
                   4946: =item scantron_filenames
                   4947: 
                   4948:    Returns a list of the scantron files in the current course 
                   4949: 
                   4950: =cut
1.422     foxr     4951: 
1.202     albertel 4952: sub scantron_filenames {
1.257     albertel 4953:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
                   4954:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
1.517     raeburn  4955:     my $getpropath = 1;
1.157     albertel 4956:     my @files=&Apache::lonnet::dirlist('userfiles',$cdom,$cname,
1.517     raeburn  4957:                                        $getpropath);
1.202     albertel 4958:     my @possiblenames;
1.201     albertel 4959:     foreach my $filename (sort(@files)) {
1.157     albertel 4960: 	($filename)=split(/&/,$filename);
                   4961: 	if ($filename!~/^scantron_orig_/) { next ; }
                   4962: 	$filename=~s/^scantron_orig_//;
1.202     albertel 4963: 	push(@possiblenames,$filename);
                   4964:     }
                   4965:     return @possiblenames;
                   4966: }
                   4967: 
1.423     albertel 4968: =pod 
                   4969: 
                   4970: =item scantron_uploads
                   4971: 
                   4972:    Returns  html drop-down list of scantron files in current course.
                   4973: 
                   4974:  Arguments:
                   4975:    $file2grade - filename to set as selected in the dropdown
                   4976: 
                   4977: =cut
1.422     foxr     4978: 
1.202     albertel 4979: sub scantron_uploads {
1.209     ng       4980:     my ($file2grade) = @_;
1.202     albertel 4981:     my $result=	'<select name="scantron_selectfile">';
                   4982:     $result.="<option></option>";
                   4983:     foreach my $filename (sort(&scantron_filenames())) {
1.401     albertel 4984: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
1.81      albertel 4985:     }
                   4986:     $result.="</select>";
                   4987:     return $result;
                   4988: }
                   4989: 
1.423     albertel 4990: =pod 
                   4991: 
                   4992: =item scantron_scantab
                   4993: 
                   4994:   Returns html drop down of the scantron formats in the scantronformat.tab
                   4995:   file.
                   4996: 
                   4997: =cut
1.422     foxr     4998: 
1.82      albertel 4999: sub scantron_scantab {
                   5000:     my $result='<select name="scantron_format">'."\n";
1.191     albertel 5001:     $result.='<option></option>'."\n";
1.518     raeburn  5002:     my @lines = &get_scantronformat_file();
                   5003:     if (@lines > 0) {
                   5004:         foreach my $line (@lines) {
                   5005:             next if (($line =~ /^\#/) || ($line eq ''));
                   5006: 	    my ($name,$descrip)=split(/:/,$line);
                   5007: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
                   5008:         }
1.82      albertel 5009:     }
                   5010:     $result.='</select>'."\n";
1.518     raeburn  5011:     return $result;
                   5012: }
                   5013: 
                   5014: =pod
                   5015: 
                   5016: =item get_scantronformat_file
                   5017: 
                   5018:   Returns an array containing lines from the scantron format file for
                   5019:   the domain of the course.
                   5020: 
                   5021:   If a url for a custom.tab file is listed in domain's configuration.db, 
                   5022:   lines are from this file.
                   5023: 
                   5024:   Otherwise, if a default.tab has been published in RES space by the 
                   5025:   domainconfig user, lines are from this file.
                   5026: 
                   5027:   Otherwise, fall back to getting lines from the legacy file on the
1.519     raeburn  5028:   local server:  /home/httpd/lonTabs/default_scantronformat.tab    
1.82      albertel 5029: 
1.518     raeburn  5030: =cut
                   5031: 
                   5032: sub get_scantronformat_file {
                   5033:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
                   5034:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$cdom);
                   5035:     my $gottab = 0;
                   5036:     my @lines;
                   5037:     if (ref($domconfig{'scantron'}) eq 'HASH') {
                   5038:         if ($domconfig{'scantron'}{'scantronformat'} ne '') {
                   5039:             my $formatfile = &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
                   5040:             if ($formatfile ne '-1') {
                   5041:                 @lines = split("\n",$formatfile,-1);
                   5042:                 $gottab = 1;
                   5043:             }
                   5044:         }
                   5045:     }
                   5046:     if (!$gottab) {
                   5047:         my $confname = $cdom.'-domainconfig';
                   5048:         my $default = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
                   5049:         my $formatfile =  &Apache::lonnet::getfile($default);
                   5050:         if ($formatfile ne '-1') {
                   5051:             @lines = split("\n",$formatfile,-1);
                   5052:             $gottab = 1;
                   5053:         }
                   5054:     }
                   5055:     if (!$gottab) {
1.519     raeburn  5056:         my @domains = &Apache::lonnet::current_machine_domains();
                   5057:         if (grep(/^\Q$cdom\E$/,@domains)) {
                   5058:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
                   5059:             @lines = <$fh>;
                   5060:             close($fh);
                   5061:         } else {
                   5062:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab');
                   5063:             @lines = <$fh>;
                   5064:             close($fh);
                   5065:         }
1.518     raeburn  5066:     }
                   5067:     return @lines;
1.82      albertel 5068: }
                   5069: 
1.423     albertel 5070: =pod 
                   5071: 
                   5072: =item scantron_CODElist
                   5073: 
                   5074:   Returns html drop down of the saved CODE lists from current course,
                   5075:   generated from earlier printings.
                   5076: 
                   5077: =cut
1.422     foxr     5078: 
1.186     albertel 5079: sub scantron_CODElist {
1.257     albertel 5080:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
                   5081:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
1.186     albertel 5082:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
                   5083:     my $namechoice='<option></option>';
1.225     albertel 5084:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
1.191     albertel 5085: 	if ($name =~ /^error: 2 /) { next; }
1.278     albertel 5086: 	if ($name =~ /^type\0/) { next; }
1.186     albertel 5087: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
                   5088:     }
                   5089:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
                   5090:     return $namechoice;
                   5091: }
                   5092: 
1.423     albertel 5093: =pod 
                   5094: 
                   5095: =item scantron_CODEunique
                   5096: 
                   5097:   Returns the html for "Each CODE to be used once" radio.
                   5098: 
                   5099: =cut
1.422     foxr     5100: 
1.186     albertel 5101: sub scantron_CODEunique {
1.532     bisitz   5102:     my $result='<span class="LC_nobreak">
1.272     albertel 5103:                  <label><input type="radio" name="scantron_CODEunique"
1.423     albertel 5104:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
1.381     albertel 5105:                 </span>
1.532     bisitz   5106:                 <span class="LC_nobreak">
1.272     albertel 5107:                  <label><input type="radio" name="scantron_CODEunique"
1.423     albertel 5108:                         value="no" />'.&mt('No').' </label>
1.381     albertel 5109:                 </span>';
1.186     albertel 5110:     return $result;
                   5111: }
1.423     albertel 5112: 
                   5113: =pod 
                   5114: 
                   5115: =item scantron_selectphase
                   5116: 
                   5117:   Generates the initial screen to start the bubble sheet process.
                   5118:   Allows for - starting a grading run.
1.424     albertel 5119:              - downloading existing scan data (original, corrected
1.423     albertel 5120:                                                 or skipped info)
                   5121: 
                   5122:              - uploading new scan data
                   5123: 
                   5124:  Arguments:
                   5125:   $r          - The Apache request object
                   5126:   $file2grade - name of the file that contain the scanned data to score
                   5127: 
                   5128: =cut
1.186     albertel 5129: 
1.75      albertel 5130: sub scantron_selectphase {
1.608     www      5131:     my ($r,$file2grade,$symb) = @_;
1.75      albertel 5132:     if (!$symb) {return '';}
1.582     raeburn  5133:     my $map_error;
                   5134:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
                   5135:     if ($map_error) {
                   5136:         $r->print('<br />'.&navmap_errormsg().'<br />');
                   5137:         return;
                   5138:     }
1.324     albertel 5139:     my $default_form_data=&defaultFormData($symb);
1.209     ng       5140:     my $file_selector=&scantron_uploads($file2grade);
1.82      albertel 5141:     my $format_selector=&scantron_scantab();
1.186     albertel 5142:     my $CODE_selector=&scantron_CODElist();
                   5143:     my $CODE_unique=&scantron_CODEunique();
1.75      albertel 5144:     my $result;
1.422     foxr     5145: 
1.513     foxr     5146:     $ssi_error = 0;
                   5147: 
1.606     wenzelju 5148:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
                   5149:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
                   5150: 
                   5151: 	# Chunk of form to prompt for a scantron file upload.
                   5152: 
                   5153:         $r->print('
                   5154:     <br />
                   5155:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
                   5156:        '.&Apache::loncommon::start_data_table_header_row().'
                   5157:             <th>
                   5158:               &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
                   5159:             </th>
                   5160:        '.&Apache::loncommon::end_data_table_header_row().'
                   5161:        '.&Apache::loncommon::start_data_table_row().'
                   5162:             <td>
                   5163: ');
1.608     www      5164:     my $default_form_data=&defaultFormData($symb);
1.606     wenzelju 5165:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
                   5166:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
                   5167:     $r->print(&Apache::lonhtmlcommon::scripttag('
                   5168:     function checkUpload(formname) {
                   5169: 	if (formname.upfile.value == "") {
                   5170: 	    alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
                   5171: 	    return false;
                   5172: 	}
                   5173: 	formname.submit();
                   5174:     }'));
                   5175:     $r->print('
                   5176:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
                   5177:                 '.$default_form_data.'
                   5178:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
                   5179:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
                   5180:                 <input name="command" value="scantronupload_save" type="hidden" />
                   5181:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'
                   5182:                 <br />
                   5183:                 <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
                   5184:               </form>
                   5185: ');
                   5186: 
                   5187:         $r->print('
                   5188:             </td>
                   5189:        '.&Apache::loncommon::end_data_table_row().'
                   5190:        '.&Apache::loncommon::end_data_table().'
                   5191: ');
                   5192:     }
                   5193: 
1.422     foxr     5194:     # Chunk of form to prompt for a file to grade and how:
                   5195: 
1.489     albertel 5196:     $result.= '
                   5197:     <br />
                   5198:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
                   5199:     <input type="hidden" name="command" value="scantron_warning" />
                   5200:     '.$default_form_data.'
                   5201:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
                   5202:        '.&Apache::loncommon::start_data_table_header_row().'
                   5203:             <th colspan="2">
1.492     albertel 5204:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
1.489     albertel 5205:             </th>
                   5206:        '.&Apache::loncommon::end_data_table_header_row().'
                   5207:        '.&Apache::loncommon::start_data_table_row().'
1.492     albertel 5208:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
1.489     albertel 5209:        '.&Apache::loncommon::end_data_table_row().'
                   5210:        '.&Apache::loncommon::start_data_table_row().'
1.572     www      5211:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
1.489     albertel 5212:        '.&Apache::loncommon::end_data_table_row().'
                   5213:        '.&Apache::loncommon::start_data_table_row().'
1.572     www      5214:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
1.489     albertel 5215:        '.&Apache::loncommon::end_data_table_row().'
                   5216:        '.&Apache::loncommon::start_data_table_row().'
1.492     albertel 5217:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
1.489     albertel 5218:        '.&Apache::loncommon::end_data_table_row().'
                   5219:        '.&Apache::loncommon::start_data_table_row().'
1.492     albertel 5220:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
1.489     albertel 5221:        '.&Apache::loncommon::end_data_table_row().'
                   5222:        '.&Apache::loncommon::start_data_table_row().'
1.492     albertel 5223: 	    <td> '.&mt('Options:').' </td>
1.187     albertel 5224:             <td>
1.492     albertel 5225: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
                   5226:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
                   5227:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
1.187     albertel 5228: 	    </td>
1.489     albertel 5229:        '.&Apache::loncommon::end_data_table_row().'
                   5230:        '.&Apache::loncommon::start_data_table_row().'
1.174     albertel 5231:             <td colspan="2">
1.572     www      5232:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
1.162     albertel 5233:             </td>
1.489     albertel 5234:        '.&Apache::loncommon::end_data_table_row().'
                   5235:     '.&Apache::loncommon::end_data_table().'
                   5236:     </form>
                   5237: ';
1.162     albertel 5238:    
                   5239:     $r->print($result);
                   5240: 
1.422     foxr     5241: 
                   5242: 
                   5243:     # Chunk of the form that prompts to view a scoring office file,
                   5244:     # corrected file, skipped records in a file.
                   5245: 
1.489     albertel 5246:     $r->print('
                   5247:    <br />
                   5248:    <form action="/adm/grades" name="scantron_download">
                   5249:      '.$default_form_data.'
                   5250:      <input type="hidden" name="command" value="scantron_download" />
                   5251:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
                   5252:        '.&Apache::loncommon::start_data_table_header_row().'
                   5253:               <th>
1.492     albertel 5254:                 &nbsp;'.&mt('Download a scoring office file').'
1.489     albertel 5255:               </th>
                   5256:        '.&Apache::loncommon::end_data_table_header_row().'
                   5257:        '.&Apache::loncommon::start_data_table_row().'
1.492     albertel 5258:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
1.489     albertel 5259:                 <br />
1.492     albertel 5260:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
1.489     albertel 5261:        '.&Apache::loncommon::end_data_table_row().'
                   5262:      '.&Apache::loncommon::end_data_table().'
                   5263:    </form>
                   5264:    <br />
                   5265: ');
1.162     albertel 5266: 
1.457     banghart 5267:     &Apache::lonpickcode::code_list($r,2);
1.523     raeburn  5268: 
1.528     raeburn  5269:     $r->print('<br /><form method="post" name="checkscantron">'.
1.523     raeburn  5270:              $default_form_data."\n".
                   5271:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
                   5272:              &Apache::loncommon::start_data_table_header_row()."\n".
                   5273:              '<th colspan="2">
1.572     www      5274:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
1.523     raeburn  5275:              '</th>'."\n".
                   5276:               &Apache::loncommon::end_data_table_header_row()."\n".
                   5277:               &Apache::loncommon::start_data_table_row()."\n".
                   5278:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
                   5279:               '<td> '.$sequence_selector.' </td>'.
                   5280:               &Apache::loncommon::end_data_table_row()."\n".
                   5281:               &Apache::loncommon::start_data_table_row()."\n".
                   5282:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
                   5283:               '<td> '.$file_selector.' </td>'."\n".
                   5284:               &Apache::loncommon::end_data_table_row()."\n".
                   5285:               &Apache::loncommon::start_data_table_row()."\n".
                   5286:               '<td> '.&mt('Format of data file:').' </td>'."\n".
                   5287:               '<td> '.$format_selector.' </td>'."\n".
                   5288:               &Apache::loncommon::end_data_table_row()."\n".
                   5289:               &Apache::loncommon::start_data_table_row()."\n".
1.557     raeburn  5290:               '<td> '.&mt('Options').' </td>'."\n".
                   5291:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
                   5292:               &Apache::loncommon::end_data_table_row()."\n".
                   5293:               &Apache::loncommon::start_data_table_row()."\n".
1.523     raeburn  5294:               '<td colspan="2">'."\n".
                   5295:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
1.575     www      5296:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
1.523     raeburn  5297:               '</td>'."\n".
                   5298:               &Apache::loncommon::end_data_table_row()."\n".
                   5299:               &Apache::loncommon::end_data_table()."\n".
                   5300:               '</form><br />');
                   5301:     return;
1.75      albertel 5302: }
                   5303: 
1.423     albertel 5304: =pod
                   5305: 
                   5306: =item get_scantron_config
                   5307: 
                   5308:    Parse and return the scantron configuration line selected as a
                   5309:    hash of configuration file fields.
                   5310: 
                   5311:  Arguments:
                   5312:     which - the name of the configuration to parse from the file.
                   5313: 
                   5314: 
                   5315:  Returns:
                   5316:             If the named configuration is not in the file, an empty
                   5317:             hash is returned.
                   5318:     a hash with the fields
                   5319:       name         - internal name for the this configuration setup
                   5320:       description  - text to display to operator that describes this config
                   5321:       CODElocation - if 0 or the string 'none'
                   5322:                           - no CODE exists for this config
                   5323:                      if -1 || the string 'letter'
                   5324:                           - a CODE exists for this config and is
                   5325:                             a string of letters
                   5326:                      Unsupported value (but planned for future support)
                   5327:                           if a positive integer
                   5328:                                - The CODE exists as the first n items from
                   5329:                                  the question section of the form
                   5330:                           if the string 'number'
                   5331:                                - The CODE exists for this config and is
                   5332:                                  a string of numbers
                   5333:       CODEstart   - (only matter if a CODE exists) column in the line where
                   5334:                      the CODE starts
                   5335:       CODElength  - length of the CODE
1.573     bisitz   5336:       IDstart     - column where the student/employee ID starts
1.556     weissno  5337:       IDlength    - length of the student/employee ID info
1.423     albertel 5338:       Qstart      - column where the information from the bubbled
                   5339:                     'questions' start
                   5340:       Qlength     - number of columns comprising a single bubble line from
                   5341:                     the sheet. (usually either 1 or 10)
1.424     albertel 5342:       Qon         - either a single character representing the character used
1.423     albertel 5343:                     to signal a bubble was chosen in the positional setup, or
                   5344:                     the string 'letter' if the letter of the chosen bubble is
                   5345:                     in the final, or 'number' if a number representing the
                   5346:                     chosen bubble is in the file (1->A 0->J)
1.424     albertel 5347:       Qoff        - the character used to represent that a bubble was
                   5348:                     left blank
1.423     albertel 5349:       PaperID     - if the scanning process generates a unique number for each
                   5350:                     sheet scanned the column that this ID number starts in
                   5351:       PaperIDlength - number of columns that comprise the unique ID number
                   5352:                       for the sheet of paper
1.424     albertel 5353:       FirstName   - column that the first name starts in
1.423     albertel 5354:       FirstNameLength - number of columns that the first name spans
                   5355:  
                   5356:       LastName    - column that the last name starts in
                   5357:       LastNameLength - number of columns that the last name spans
1.649     raeburn  5358:       BubblesPerRow - number of bubbles available in each row used to 
                   5359:                       bubble an answer. (If not specified, 10 assumed).
1.423     albertel 5360: =cut
1.422     foxr     5361: 
1.82      albertel 5362: sub get_scantron_config {
                   5363:     my ($which) = @_;
1.518     raeburn  5364:     my @lines = &get_scantronformat_file();
1.82      albertel 5365:     my %config;
1.157     albertel 5366:     #FIXME probably should move to XML it has already gotten a bit much now
1.518     raeburn  5367:     foreach my $line (@lines) {
1.82      albertel 5368: 	my ($name,$descrip)=split(/:/,$line);
                   5369: 	if ($name ne $which ) { next; }
                   5370: 	chomp($line);
                   5371: 	my @config=split(/:/,$line);
                   5372: 	$config{'name'}=$config[0];
                   5373: 	$config{'description'}=$config[1];
                   5374: 	$config{'CODElocation'}=$config[2];
                   5375: 	$config{'CODEstart'}=$config[3];
                   5376: 	$config{'CODElength'}=$config[4];
                   5377: 	$config{'IDstart'}=$config[5];
                   5378: 	$config{'IDlength'}=$config[6];
                   5379: 	$config{'Qstart'}=$config[7];
1.497     foxr     5380:  	$config{'Qlength'}=$config[8];
1.82      albertel 5381: 	$config{'Qoff'}=$config[9];
                   5382: 	$config{'Qon'}=$config[10];
1.157     albertel 5383: 	$config{'PaperID'}=$config[11];
                   5384: 	$config{'PaperIDlength'}=$config[12];
                   5385: 	$config{'FirstName'}=$config[13];
                   5386: 	$config{'FirstNamelength'}=$config[14];
                   5387: 	$config{'LastName'}=$config[15];
                   5388: 	$config{'LastNamelength'}=$config[16];
1.649     raeburn  5389:         $config{'BubblesPerRow'}=$config[17];
1.82      albertel 5390: 	last;
                   5391:     }
                   5392:     return %config;
                   5393: }
                   5394: 
1.423     albertel 5395: =pod 
                   5396: 
                   5397: =item username_to_idmap
                   5398: 
1.556     weissno  5399:     creates a hash keyed by student/employee ID with values of the corresponding
1.423     albertel 5400:     student username:domain.
                   5401: 
                   5402:   Arguments:
                   5403: 
                   5404:     $classlist - reference to the class list hash. This is a hash
                   5405:                  keyed by student name:domain  whose elements are references
1.424     albertel 5406:                  to arrays containing various chunks of information
1.423     albertel 5407:                  about the student. (See loncoursedata for more info).
                   5408: 
                   5409:   Returns
                   5410:     %idmap - the constructed hash
                   5411: 
                   5412: =cut
                   5413: 
1.82      albertel 5414: sub username_to_idmap {
                   5415:     my ($classlist)= @_;
                   5416:     my %idmap;
                   5417:     foreach my $student (keys(%$classlist)) {
                   5418: 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
                   5419: 	    $student;
                   5420:     }
                   5421:     return %idmap;
                   5422: }
1.423     albertel 5423: 
                   5424: =pod
                   5425: 
1.424     albertel 5426: =item scantron_fixup_scanline
1.423     albertel 5427: 
                   5428:    Process a requested correction to a scanline.
                   5429: 
                   5430:   Arguments:
                   5431:     $scantron_config   - hash from &get_scantron_config()
                   5432:     $scan_data         - hash of correction information 
                   5433:                           (see &scantron_getfile())
                   5434:     $line              - existing scanline
                   5435:     $whichline         - line number of the passed in scanline
                   5436:     $field             - type of change to process 
                   5437:                          (either 
1.573     bisitz   5438:                           'ID'     -> correct the student/employee ID
1.423     albertel 5439:                           'CODE'   -> correct the CODE
                   5440:                           'answer' -> fixup the submitted answers)
                   5441:     
                   5442:    $args               - hash of additional info,
                   5443:                           - 'ID' 
                   5444:                                'newid' -> studentID to use in replacement
1.424     albertel 5445:                                           of existing one
1.423     albertel 5446:                           - 'CODE' 
                   5447:                                'CODE_ignore_dup' - set to true if duplicates
                   5448:                                                    should be ignored.
                   5449: 	                       'CODE' - is new code or 'use_unfound'
1.424     albertel 5450:                                         if the existing unfound code should
1.423     albertel 5451:                                         be used as is
                   5452:                           - 'answer'
                   5453:                                'response' - new answer or 'none' if blank
                   5454:                                'question' - the bubble line to change
1.503     raeburn  5455:                                'questionnum' - the question identifier,
                   5456:                                                may include subquestion. 
1.423     albertel 5457: 
                   5458:   Returns:
                   5459:     $line - the modified scanline
                   5460: 
                   5461:   Side effects: 
                   5462:     $scan_data - may be updated
                   5463: 
                   5464: =cut
                   5465: 
1.82      albertel 5466: 
1.157     albertel 5467: sub scantron_fixup_scanline {
                   5468:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
                   5469:     if ($field eq 'ID') {
                   5470: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
1.186     albertel 5471: 	    return ($line,1,'New value too large');
1.157     albertel 5472: 	}
                   5473: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
                   5474: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
                   5475: 				     $args->{'newid'});
                   5476: 	}
                   5477: 	substr($line,$$scantron_config{'IDstart'}-1,
                   5478: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
                   5479: 	if ($args->{'newid'}=~/^\s*$/) {
                   5480: 	    &scan_data($scan_data,"$whichline.user",
                   5481: 		       $args->{'username'}.':'.$args->{'domain'});
                   5482: 	}
1.186     albertel 5483:     } elsif ($field eq 'CODE') {
1.192     albertel 5484: 	if ($args->{'CODE_ignore_dup'}) {
                   5485: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
                   5486: 	}
                   5487: 	&scan_data($scan_data,"$whichline.useCODE",'1');
                   5488: 	if ($args->{'CODE'} ne 'use_unfound') {
1.191     albertel 5489: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
                   5490: 		return ($line,1,'New CODE value too large');
                   5491: 	    }
                   5492: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
                   5493: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
                   5494: 	    }
                   5495: 	    substr($line,$$scantron_config{'CODEstart'}-1,
                   5496: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
1.186     albertel 5497: 	}
1.157     albertel 5498:     } elsif ($field eq 'answer') {
1.497     foxr     5499: 	my $length=$scantron_config->{'Qlength'};
1.157     albertel 5500: 	my $off=$scantron_config->{'Qoff'};
                   5501: 	my $on=$scantron_config->{'Qon'};
1.497     foxr     5502: 	my $answer=${off}x$length;
                   5503: 	if ($args->{'response'} eq 'none') {
                   5504: 	    &scan_data($scan_data,
1.503     raeburn  5505: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
1.497     foxr     5506: 	} else {
                   5507: 	    if ($on eq 'letter') {
                   5508: 		my @alphabet=('A'..'Z');
                   5509: 		$answer=$alphabet[$args->{'response'}];
                   5510: 	    } elsif ($on eq 'number') {
                   5511: 		$answer=$args->{'response'}+1;
                   5512: 		if ($answer == 10) { $answer = '0'; }
1.274     albertel 5513: 	    } else {
1.497     foxr     5514: 		substr($answer,$args->{'response'},1)=$on;
1.274     albertel 5515: 	    }
1.497     foxr     5516: 	    &scan_data($scan_data,
1.503     raeburn  5517: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
1.157     albertel 5518: 	}
1.497     foxr     5519: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
                   5520: 	substr($line,$where-1,$length)=$answer;
1.157     albertel 5521:     }
                   5522:     return $line;
                   5523: }
1.423     albertel 5524: 
                   5525: =pod
                   5526: 
                   5527: =item scan_data
                   5528: 
                   5529:     Edit or look up  an item in the scan_data hash.
                   5530: 
                   5531:   Arguments:
                   5532:     $scan_data  - The hash (see scantron_getfile)
                   5533:     $key        - shorthand of the key to edit (actual key is
1.424     albertel 5534:                   scantronfilename_key).
1.423     albertel 5535:     $data        - New value of the hash entry.
                   5536:     $delete      - If true, the entry is removed from the hash.
                   5537: 
                   5538:   Returns:
                   5539:     The new value of the hash table field (undefined if deleted).
                   5540: 
                   5541: =cut
                   5542: 
                   5543: 
1.157     albertel 5544: sub scan_data {
                   5545:     my ($scan_data,$key,$value,$delete)=@_;
1.257     albertel 5546:     my $filename=$env{'form.scantron_selectfile'};
1.157     albertel 5547:     if (defined($value)) {
                   5548: 	$scan_data->{$filename.'_'.$key} = $value;
                   5549:     }
                   5550:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
                   5551:     return $scan_data->{$filename.'_'.$key};
                   5552: }
1.423     albertel 5553: 
1.495     albertel 5554: # ----- These first few routines are general use routines.----
                   5555: 
                   5556: # Return the number of occurences of a pattern in a string.
                   5557: 
                   5558: sub occurence_count {
                   5559:     my ($string, $pattern) = @_;
                   5560: 
                   5561:     my @matches = ($string =~ /$pattern/g);
                   5562: 
                   5563:     return scalar(@matches);
                   5564: }
                   5565: 
                   5566: 
                   5567: # Take a string known to have digits and convert all the
                   5568: # digits into letters in the range J,A..I.
                   5569: 
                   5570: sub digits_to_letters {
                   5571:     my ($input) = @_;
                   5572: 
                   5573:     my @alphabet = ('J', 'A'..'I');
                   5574: 
                   5575:     my @input    = split(//, $input);
                   5576:     my $output ='';
                   5577:     for (my $i = 0; $i < scalar(@input); $i++) {
                   5578: 	if ($input[$i] =~ /\d/) {
                   5579: 	    $output .= $alphabet[$input[$i]];
                   5580: 	} else {
                   5581: 	    $output .= $input[$i];
                   5582: 	}
                   5583:     }
                   5584:     return $output;
                   5585: }
                   5586: 
1.423     albertel 5587: =pod 
                   5588: 
                   5589: =item scantron_parse_scanline
                   5590: 
                   5591:   Decodes a scanline from the selected scantron file
                   5592: 
                   5593:  Arguments:
                   5594:     line             - The text of the scantron file line to process
                   5595:     whichline        - Line number
                   5596:     scantron_config  - Hash describing the format of the scantron lines.
                   5597:     scan_data        - Hash of extra information about the scanline
                   5598:                        (see scantron_getfile for more information)
                   5599:     just_header      - True if should not process question answers but only
                   5600:                        the stuff to the left of the answers.
                   5601:  Returns:
                   5602:    Hash containing the result of parsing the scanline
                   5603: 
                   5604:    Keys are all proceeded by the string 'scantron.'
                   5605: 
                   5606:        CODE    - the CODE in use for this scanline
                   5607:        useCODE - 1 if the CODE is invalid but it usage has been forced
                   5608:                  by the operator
                   5609:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
                   5610:                             CODEs were selected, but the usage has been
                   5611:                             forced by the operator
1.556     weissno  5612:        ID  - student/employee ID
1.423     albertel 5613:        PaperID - if used, the ID number printed on the sheet when the 
                   5614:                  paper was scanned
                   5615:        FirstName - first name from the sheet
                   5616:        LastName  - last name from the sheet
                   5617: 
                   5618:      if just_header was not true these key may also exist
                   5619: 
1.447     foxr     5620:        missingerror - a list of bubble ranges that are considered to be answers
                   5621:                       to a single question that don't have any bubbles filled in.
                   5622:                       Of the form questionnumber:firstbubblenumber:count.
                   5623:        doubleerror  - a list of bubble ranges that are considered to be answers
                   5624:                       to a single question that have more than one bubble filled in.
                   5625:                       Of the form questionnumber::firstbubblenumber:count
                   5626:    
                   5627:                 In the above, count is the number of bubble responses in the
                   5628:                 input line needed to represent the possible answers to the question.
                   5629:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
                   5630:                 per line would have count = 2.
                   5631: 
1.423     albertel 5632:        maxquest     - the number of the last bubble line that was parsed
                   5633: 
                   5634:        (<number> starts at 1)
                   5635:        <number>.answer - zero or more letters representing the selected
                   5636:                          letters from the scanline for the bubble line 
                   5637:                          <number>.
                   5638:                          if blank there was either no bubble or there where
                   5639:                          multiple bubbles, (consult the keys missingerror and
                   5640:                          doubleerror if this is an error condition)
                   5641: 
                   5642: =cut
                   5643: 
1.82      albertel 5644: sub scantron_parse_scanline {
1.423     albertel 5645:     my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
1.470     foxr     5646: 
1.82      albertel 5647:     my %record;
1.550     raeburn  5648:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
                   5649:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
1.422     foxr     5650:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
1.278     albertel 5651:     if (!($$scantron_config{'CODElocation'} eq 0 ||
                   5652: 	  $$scantron_config{'CODElocation'} eq 'none')) {
                   5653: 	if ($$scantron_config{'CODElocation'} < 0 ||
                   5654: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
                   5655: 	    $$scantron_config{'CODElocation'} eq 'number') {
1.191     albertel 5656: 	    $record{'scantron.CODE'}=substr($data,
                   5657: 					    $$scantron_config{'CODEstart'}-1,
1.83      albertel 5658: 					    $$scantron_config{'CODElength'});
1.191     albertel 5659: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
                   5660: 		$record{'scantron.useCODE'}=1;
                   5661: 	    }
1.192     albertel 5662: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
                   5663: 		$record{'scantron.CODE_ignore_dup'}=1;
                   5664: 	    }
1.82      albertel 5665: 	} else {
                   5666: 	    #FIXME interpret first N questions
                   5667: 	}
                   5668:     }
1.83      albertel 5669:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
                   5670: 				  $$scantron_config{'IDlength'});
1.157     albertel 5671:     $record{'scantron.PaperID'}=
                   5672: 	substr($data,$$scantron_config{'PaperID'}-1,
                   5673: 	       $$scantron_config{'PaperIDlength'});
                   5674:     $record{'scantron.FirstName'}=
                   5675: 	substr($data,$$scantron_config{'FirstName'}-1,
                   5676: 	       $$scantron_config{'FirstNamelength'});
                   5677:     $record{'scantron.LastName'}=
                   5678: 	substr($data,$$scantron_config{'LastName'}-1,
                   5679: 	       $$scantron_config{'LastNamelength'});
1.423     albertel 5680:     if ($just_header) { return \%record; }
1.194     albertel 5681: 
1.82      albertel 5682:     my @alphabet=('A'..'Z');
                   5683:     my $questnum=0;
1.447     foxr     5684:     my $ansnum  =1;		# Multiple 'answer lines'/question.
                   5685: 
1.470     foxr     5686:     chomp($questions);		# Get rid of any trailing \n.
                   5687:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
                   5688:     while (length($questions)) {
1.447     foxr     5689: 	my $answers_needed = $bubble_lines_per_response{$questnum};
1.503     raeburn  5690:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
                   5691:                              || 1;
                   5692:         $questnum++;
                   5693:         my $quest_id = $questnum;
                   5694:         my $currentquest = substr($questions,0,$answer_length);
                   5695:         $questions       = substr($questions,$answer_length);
                   5696:         if (length($currentquest) < $answer_length) { next; }
                   5697: 
                   5698:         if ($subdivided_bubble_lines{$questnum-1} =~ /,/) {
                   5699:             my $subquestnum = 1;
                   5700:             my $subquestions = $currentquest;
                   5701:             my @subanswers_needed = 
                   5702:                 split(/,/,$subdivided_bubble_lines{$questnum-1});  
                   5703:             foreach my $subans (@subanswers_needed) {
                   5704:                 my $subans_length =
                   5705:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
                   5706:                 my $currsubquest = substr($subquestions,0,$subans_length);
                   5707:                 $subquestions   = substr($subquestions,$subans_length);
                   5708:                 $quest_id = "$questnum.$subquestnum";
                   5709:                 if (($$scantron_config{'Qon'} eq 'letter') ||
                   5710:                     ($$scantron_config{'Qon'} eq 'number')) {
                   5711:                     $ansnum = &scantron_validator_lettnum($ansnum, 
                   5712:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
                   5713:                         \@alphabet,\%record,$scantron_config,$scan_data);
                   5714:                 } else {
                   5715:                     $ansnum = &scantron_validator_positional($ansnum,
                   5716:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,                        \@alphabet,\%record,$scantron_config,$scan_data);
                   5717:                 }
                   5718:                 $subquestnum ++;
                   5719:             }
                   5720:         } else {
                   5721:             if (($$scantron_config{'Qon'} eq 'letter') ||
                   5722:                 ($$scantron_config{'Qon'} eq 'number')) {
                   5723:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
                   5724:                     $quest_id,$answers_needed,$currentquest,$whichline,
                   5725:                     \@alphabet,\%record,$scantron_config,$scan_data);
                   5726:             } else {
                   5727:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
                   5728:                     $quest_id,$answers_needed,$currentquest,$whichline,
                   5729:                     \@alphabet,\%record,$scantron_config,$scan_data);
                   5730:             }
                   5731:         }
                   5732:     }
                   5733:     $record{'scantron.maxquest'}=$questnum;
                   5734:     return \%record;
                   5735: }
1.447     foxr     5736: 
1.503     raeburn  5737: sub scantron_validator_lettnum {
                   5738:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
                   5739:         $alphabet,$record,$scantron_config,$scan_data) = @_;
                   5740: 
                   5741:     # Qon 'letter' implies for each slot in currquest we have:
                   5742:     #    ? or * for doubles, a letter in A-Z for a bubble, and
                   5743:     #    about anything else (esp. a value of Qoff) for missing
                   5744:     #    bubbles.
                   5745:     #
                   5746:     # Qon 'number' implies each slot gives a digit that indexes the
                   5747:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
                   5748:     #    and * or ? for double bubbles on a single line.
                   5749:     #
1.447     foxr     5750: 
1.503     raeburn  5751:     my $matchon;
                   5752:     if ($$scantron_config{'Qon'} eq 'letter') {
                   5753:         $matchon = '[A-Z]';
                   5754:     } elsif ($$scantron_config{'Qon'} eq 'number') {
                   5755:         $matchon = '\d';
                   5756:     }
                   5757:     my $occurrences = 0;
                   5758:     if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
                   5759:         ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
1.510     raeburn  5760:         ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
                   5761:         ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
                   5762:         ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
                   5763:         ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
1.503     raeburn  5764:         my @singlelines = split('',$currquest);
                   5765:         foreach my $entry (@singlelines) {
                   5766:             $occurrences = &occurence_count($entry,$matchon);
                   5767:             if ($occurrences > 1) {
                   5768:                 last;
                   5769:             }
                   5770:         } 
                   5771:     } else {
                   5772:         $occurrences = &occurence_count($currquest,$matchon); 
                   5773:     }
                   5774:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
                   5775:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
                   5776:         for (my $ans=0; $ans<$answers_needed; $ans++) {
                   5777:             my $bubble = substr($currquest,$ans,1);
                   5778:             if ($bubble =~ /$matchon/ ) {
                   5779:                 if ($$scantron_config{'Qon'} eq 'number') {
                   5780:                     if ($bubble == 0) {
                   5781:                         $bubble = 10; 
                   5782:                     }
                   5783:                     $record->{"scantron.$ansnum.answer"} = 
                   5784:                         $alphabet->[$bubble-1];
                   5785:                 } else {
                   5786:                     $record->{"scantron.$ansnum.answer"} = $bubble;
                   5787:                 }
                   5788:             } else {
                   5789:                 $record->{"scantron.$ansnum.answer"}='';
                   5790:             }
                   5791:             $ansnum++;
                   5792:         }
                   5793:     } elsif (!defined($currquest)
                   5794:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
                   5795:             || (&occurence_count($currquest,$matchon) == 0)) {
                   5796:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
                   5797:             $record->{"scantron.$ansnum.answer"}='';
                   5798:             $ansnum++;
                   5799:         }
                   5800:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
                   5801:             push(@{$record->{'scantron.missingerror'}},$quest_id);
                   5802:         }
                   5803:     } else {
                   5804:         if ($$scantron_config{'Qon'} eq 'number') {
                   5805:             $currquest = &digits_to_letters($currquest);            
                   5806:         }
                   5807:         for (my $ans=0; $ans<$answers_needed; $ans++) {
                   5808:             my $bubble = substr($currquest,$ans,1);
                   5809:             $record->{"scantron.$ansnum.answer"} = $bubble;
                   5810:             $ansnum++;
                   5811:         }
                   5812:     }
                   5813:     return $ansnum;
                   5814: }
1.447     foxr     5815: 
1.503     raeburn  5816: sub scantron_validator_positional {
                   5817:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
                   5818:         $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_;
1.447     foxr     5819: 
1.503     raeburn  5820:     # Otherwise there's a positional notation;
                   5821:     # each bubble line requires Qlength items, and there are filled in
                   5822:     # bubbles for each case where there 'Qon' characters.
                   5823:     #
1.447     foxr     5824: 
1.503     raeburn  5825:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
1.447     foxr     5826: 
1.503     raeburn  5827:     # If the split only gives us one element.. the full length of the
                   5828:     # answer string, no bubbles are filled in:
1.447     foxr     5829: 
1.507     raeburn  5830:     if ($answers_needed eq '') {
                   5831:         return;
                   5832:     }
                   5833: 
1.503     raeburn  5834:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
                   5835:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
                   5836:             $record->{"scantron.$ansnum.answer"}='';
                   5837:             $ansnum++;
                   5838:         }
                   5839:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
                   5840:             push(@{$record->{"scantron.missingerror"}},$quest_id);
                   5841:         }
                   5842:     } elsif (scalar(@array) == 2) {
                   5843:         my $location = length($array[0]);
                   5844:         my $line_num = int($location / $$scantron_config{'Qlength'});
                   5845:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
                   5846:         for (my $ans=0; $ans<$answers_needed; $ans++) {
                   5847:             if ($ans eq $line_num) {
                   5848:                 $record->{"scantron.$ansnum.answer"} = $bubble;
                   5849:             } else {
                   5850:                 $record->{"scantron.$ansnum.answer"} = ' ';
                   5851:             }
                   5852:             $ansnum++;
                   5853:          }
                   5854:     } else {
                   5855:         #  If there's more than one instance of a bubble character
                   5856:         #  That's a double bubble; with positional notation we can
                   5857:         #  record all the bubbles filled in as well as the
                   5858:         #  fact this response consists of multiple bubbles.
                   5859:         #
                   5860:         if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
                   5861:             ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
1.510     raeburn  5862:             ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
                   5863:             ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
                   5864:             ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
                   5865:             ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
1.503     raeburn  5866:             my $doubleerror = 0;
                   5867:             while (($currquest >= $$scantron_config{'Qlength'}) && 
                   5868:                    (!$doubleerror)) {
                   5869:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
                   5870:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
                   5871:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
                   5872:                if (length(@currarray) > 2) {
                   5873:                    $doubleerror = 1;
                   5874:                } 
                   5875:             }
                   5876:             if ($doubleerror) {
                   5877:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
                   5878:             }
                   5879:         } else {
                   5880:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
                   5881:         }
                   5882:         my $item = $ansnum;
                   5883:         for (my $ans=0; $ans<$answers_needed; $ans++) {
                   5884:             $record->{"scantron.$item.answer"} = '';
                   5885:             $item ++;
                   5886:         }
1.447     foxr     5887: 
1.503     raeburn  5888:         my @ans=@array;
                   5889:         my $i=0;
                   5890:         my $increment = 0;
                   5891:         while ($#ans) {
                   5892:             $i+=length($ans[0]) + $increment;
                   5893:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
                   5894:             my $bubble = $i%$$scantron_config{'Qlength'};
                   5895:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
                   5896:             shift(@ans);
                   5897:             $increment = 1;
                   5898:         }
                   5899:         $ansnum += $answers_needed;
1.82      albertel 5900:     }
1.503     raeburn  5901:     return $ansnum;
1.82      albertel 5902: }
                   5903: 
1.423     albertel 5904: =pod
                   5905: 
                   5906: =item scantron_add_delay
                   5907: 
                   5908:    Adds an error message that occurred during the grading phase to a
                   5909:    queue of messages to be shown after grading pass is complete
                   5910: 
                   5911:  Arguments:
1.424     albertel 5912:    $delayqueue  - arrary ref of hash ref of error messages
1.423     albertel 5913:    $scanline    - the scanline that caused the error
                   5914:    $errormesage - the error message
                   5915:    $errorcode   - a numeric code for the error
                   5916: 
                   5917:  Side Effects:
1.424     albertel 5918:    updates the $delayqueue to have a new hash ref of the error
1.423     albertel 5919: 
                   5920: =cut
                   5921: 
1.82      albertel 5922: sub scantron_add_delay {
1.140     albertel 5923:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
                   5924:     push(@$delayqueue,
                   5925: 	 {'line' => $scanline, 'emsg' => $errormessage,
                   5926: 	  'ecode' => $errorcode }
                   5927: 	 );
1.82      albertel 5928: }
                   5929: 
1.423     albertel 5930: =pod
                   5931: 
                   5932: =item scantron_find_student
                   5933: 
1.424     albertel 5934:    Finds the username for the current scanline
                   5935: 
                   5936:   Arguments:
                   5937:    $scantron_record - hash result from scantron_parse_scanline
                   5938:    $scan_data       - hash of correction information 
                   5939:                       (see &scantron_getfile() form more information)
                   5940:    $idmap           - hash from &username_to_idmap()
                   5941:    $line            - number of current scanline
                   5942:  
                   5943:   Returns:
                   5944:    Either 'username:domain' or undef if unknown
                   5945: 
1.423     albertel 5946: =cut
                   5947: 
1.82      albertel 5948: sub scantron_find_student {
1.157     albertel 5949:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
1.83      albertel 5950:     my $scanID=$$scantron_record{'scantron.ID'};
1.157     albertel 5951:     if ($scanID =~ /^\s*$/) {
                   5952:  	return &scan_data($scan_data,"$line.user");
                   5953:     }
1.83      albertel 5954:     foreach my $id (keys(%$idmap)) {
1.157     albertel 5955:  	if (lc($id) eq lc($scanID)) {
                   5956:  	    return $$idmap{$id};
                   5957:  	}
1.83      albertel 5958:     }
                   5959:     return undef;
                   5960: }
                   5961: 
1.423     albertel 5962: =pod
                   5963: 
                   5964: =item scantron_filter
                   5965: 
1.424     albertel 5966:    Filter sub for lonnavmaps, filters out hidden resources if ignore
                   5967:    hidden resources was selected
                   5968: 
1.423     albertel 5969: =cut
                   5970: 
1.83      albertel 5971: sub scantron_filter {
                   5972:     my ($curres)=@_;
1.331     albertel 5973: 
                   5974:     if (ref($curres) && $curres->is_problem()) {
                   5975: 	# if the user has asked to not have either hidden
                   5976: 	# or 'randomout' controlled resources to be graded
                   5977: 	# don't include them
                   5978: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
                   5979: 	    && $curres->randomout) {
                   5980: 	    return 0;
                   5981: 	}
1.83      albertel 5982: 	return 1;
                   5983:     }
                   5984:     return 0;
1.82      albertel 5985: }
                   5986: 
1.423     albertel 5987: =pod
                   5988: 
                   5989: =item scantron_process_corrections
                   5990: 
1.424     albertel 5991:    Gets correction information out of submitted form data and corrects
                   5992:    the scanline
                   5993: 
1.423     albertel 5994: =cut
                   5995: 
1.157     albertel 5996: sub scantron_process_corrections {
                   5997:     my ($r) = @_;
1.257     albertel 5998:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.157     albertel 5999:     my ($scanlines,$scan_data)=&scantron_getfile();
                   6000:     my $classlist=&Apache::loncoursedata::get_classlist();
1.257     albertel 6001:     my $which=$env{'form.scantron_line'};
1.200     albertel 6002:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
1.157     albertel 6003:     my ($skip,$err,$errmsg);
1.257     albertel 6004:     if ($env{'form.scantron_skip_record'}) {
1.157     albertel 6005: 	$skip=1;
1.257     albertel 6006:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
                   6007: 	my $newstudent=$env{'form.scantron_username'}.':'.
                   6008: 	    $env{'form.scantron_domain'};
1.157     albertel 6009: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
                   6010: 	($line,$err,$errmsg)=
                   6011: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
                   6012: 				     'ID',{'newid'=>$newid,
1.257     albertel 6013: 				    'username'=>$env{'form.scantron_username'},
                   6014: 				    'domain'=>$env{'form.scantron_domain'}});
                   6015:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
                   6016: 	my $resolution=$env{'form.scantron_CODE_resolution'};
1.190     albertel 6017: 	my $newCODE;
1.192     albertel 6018: 	my %args;
1.190     albertel 6019: 	if      ($resolution eq 'use_unfound') {
1.191     albertel 6020: 	    $newCODE='use_unfound';
1.190     albertel 6021: 	} elsif ($resolution eq 'use_found') {
1.257     albertel 6022: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
1.190     albertel 6023: 	} elsif ($resolution eq 'use_typed') {
1.257     albertel 6024: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
1.194     albertel 6025: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
1.257     albertel 6026: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
1.190     albertel 6027: 	}
1.257     albertel 6028: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
1.192     albertel 6029: 	    $args{'CODE_ignore_dup'}=1;
                   6030: 	}
                   6031: 	$args{'CODE'}=$newCODE;
1.186     albertel 6032: 	($line,$err,$errmsg)=
                   6033: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
1.192     albertel 6034: 				     'CODE',\%args);
1.257     albertel 6035:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
                   6036: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
1.157     albertel 6037: 	    ($line,$err,$errmsg)=
                   6038: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
                   6039: 					 $which,'answer',
                   6040: 					 { 'question'=>$question,
1.503     raeburn  6041: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
                   6042:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
1.157     albertel 6043: 	    if ($err) { last; }
                   6044: 	}
                   6045:     }
                   6046:     if ($err) {
1.398     albertel 6047: 	$r->print("<span class=\"LC_warning\">Unable to accept last correction, an error occurred :$errmsg:</span>");
1.157     albertel 6048:     } else {
1.200     albertel 6049: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
1.157     albertel 6050: 	&scantron_putfile($scanlines,$scan_data);
                   6051:     }
                   6052: }
                   6053: 
1.423     albertel 6054: =pod
                   6055: 
                   6056: =item reset_skipping_status
                   6057: 
1.424     albertel 6058:    Forgets the current set of remember skipped scanlines (and thus
                   6059:    reverts back to considering all lines in the
                   6060:    scantron_skipped_<filename> file)
                   6061: 
1.423     albertel 6062: =cut
                   6063: 
1.200     albertel 6064: sub reset_skipping_status {
                   6065:     my ($scanlines,$scan_data)=&scantron_getfile();
                   6066:     &scan_data($scan_data,'remember_skipping',undef,1);
                   6067:     &scantron_putfile(undef,$scan_data);
                   6068: }
                   6069: 
1.423     albertel 6070: =pod
                   6071: 
                   6072: =item start_skipping
                   6073: 
1.424     albertel 6074:    Marks a scanline to be skipped. 
                   6075: 
1.423     albertel 6076: =cut
                   6077: 
1.376     albertel 6078: sub start_skipping {
1.200     albertel 6079:     my ($scan_data,$i)=@_;
                   6080:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
1.376     albertel 6081:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
                   6082: 	$remembered{$i}=2;
                   6083:     } else {
                   6084: 	$remembered{$i}=1;
                   6085:     }
1.200     albertel 6086:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
                   6087: }
                   6088: 
1.423     albertel 6089: =pod
                   6090: 
                   6091: =item should_be_skipped
                   6092: 
1.424     albertel 6093:    Checks whether a scanline should be skipped.
                   6094: 
1.423     albertel 6095: =cut
                   6096: 
1.200     albertel 6097: sub should_be_skipped {
1.376     albertel 6098:     my ($scanlines,$scan_data,$i)=@_;
1.257     albertel 6099:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
1.200     albertel 6100: 	# not redoing old skips
1.376     albertel 6101: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
1.200     albertel 6102: 	return 0;
                   6103:     }
                   6104:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
1.376     albertel 6105: 
                   6106:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
                   6107: 	return 0;
                   6108:     }
1.200     albertel 6109:     return 1;
                   6110: }
                   6111: 
1.423     albertel 6112: =pod
                   6113: 
                   6114: =item remember_current_skipped
                   6115: 
1.424     albertel 6116:    Discovers what scanlines are in the scantron_skipped_<filename>
                   6117:    file and remembers them into scan_data for later use.
                   6118: 
1.423     albertel 6119: =cut
                   6120: 
1.200     albertel 6121: sub remember_current_skipped {
                   6122:     my ($scanlines,$scan_data)=&scantron_getfile();
                   6123:     my %to_remember;
                   6124:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
                   6125: 	if ($scanlines->{'skipped'}[$i]) {
                   6126: 	    $to_remember{$i}=1;
                   6127: 	}
                   6128:     }
1.376     albertel 6129: 
1.200     albertel 6130:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
                   6131:     &scantron_putfile(undef,$scan_data);
                   6132: }
                   6133: 
1.423     albertel 6134: =pod
                   6135: 
                   6136: =item check_for_error
                   6137: 
1.424     albertel 6138:     Checks if there was an error when attempting to remove a specific
                   6139:     scantron_.. bubble sheet data file. Prints out an error if
                   6140:     something went wrong.
                   6141: 
1.423     albertel 6142: =cut
                   6143: 
1.200     albertel 6144: sub check_for_error {
                   6145:     my ($r,$result)=@_;
                   6146:     if ($result ne 'ok' && $result ne 'not_found' ) {
1.492     albertel 6147: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
1.200     albertel 6148:     }
                   6149: }
1.157     albertel 6150: 
1.423     albertel 6151: =pod
                   6152: 
                   6153: =item scantron_warning_screen
                   6154: 
1.424     albertel 6155:    Interstitial screen to make sure the operator has selected the
                   6156:    correct options before we start the validation phase.
                   6157: 
1.423     albertel 6158: =cut
                   6159: 
1.203     albertel 6160: sub scantron_warning_screen {
1.650     raeburn  6161:     my ($button_text,$symb)=@_;
1.257     albertel 6162:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
1.284     albertel 6163:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.373     albertel 6164:     my $CODElist;
1.284     albertel 6165:     if ($scantron_config{'CODElocation'} &&
                   6166: 	$scantron_config{'CODEstart'} &&
                   6167: 	$scantron_config{'CODElength'}) {
                   6168: 	$CODElist=$env{'form.scantron_CODElist'};
1.398     albertel 6169: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">None</span>'; }
1.284     albertel 6170: 	$CODElist=
1.492     albertel 6171: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
1.373     albertel 6172: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
1.284     albertel 6173:     }
1.492     albertel 6174:     return ('
1.203     albertel 6175: <p>
1.492     albertel 6176: <span class="LC_warning">
                   6177: '.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
1.203     albertel 6178: </p>
                   6179: <table>
1.492     albertel 6180: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
                   6181: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
                   6182: '.$CODElist.'
1.203     albertel 6183: </table>
1.650     raeburn  6184: <p> '.&mt('If this information is correct, please click on \'[_1]\'.',&mt($button_text)).'<br />
                   6185: '.&mt('If something is incorrect, please return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>
1.203     albertel 6186: 
                   6187: <br />
1.492     albertel 6188: ');
1.203     albertel 6189: }
                   6190: 
1.423     albertel 6191: =pod
                   6192: 
                   6193: =item scantron_do_warning
                   6194: 
1.424     albertel 6195:    Check if the operator has picked something for all required
                   6196:    fields. Error out if something is missing.
                   6197: 
1.423     albertel 6198: =cut
                   6199: 
1.203     albertel 6200: sub scantron_do_warning {
1.608     www      6201:     my ($r,$symb)=@_;
1.203     albertel 6202:     if (!$symb) {return '';}
1.324     albertel 6203:     my $default_form_data=&defaultFormData($symb);
1.203     albertel 6204:     $r->print(&scantron_form_start().$default_form_data);
1.257     albertel 6205:     if ( $env{'form.selectpage'} eq '' ||
                   6206: 	 $env{'form.scantron_selectfile'} eq '' ||
                   6207: 	 $env{'form.scantron_format'} eq '' ) {
1.642     raeburn  6208: 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
1.257     albertel 6209: 	if ( $env{'form.selectpage'} eq '') {
1.492     albertel 6210: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
1.237     albertel 6211: 	} 
1.257     albertel 6212: 	if ( $env{'form.scantron_selectfile'} eq '') {
1.642     raeburn  6213: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
1.237     albertel 6214: 	} 
1.257     albertel 6215: 	if ( $env{'form.scantron_format'} eq '') {
1.642     raeburn  6216: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
1.237     albertel 6217: 	} 
                   6218:     } else {
1.650     raeburn  6219: 	my $warning=&scantron_warning_screen('Grading: Validate Records',$symb);
1.492     albertel 6220: 	$r->print('
                   6221: '.$warning.'
                   6222: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
1.203     albertel 6223: <input type="hidden" name="command" value="scantron_validate" />
1.492     albertel 6224: ');
1.237     albertel 6225:     }
1.614     www      6226:     $r->print("</form><br />");
1.203     albertel 6227:     return '';
                   6228: }
                   6229: 
1.423     albertel 6230: =pod
                   6231: 
                   6232: =item scantron_form_start
                   6233: 
1.424     albertel 6234:     html hidden input for remembering all selected grading options
                   6235: 
1.423     albertel 6236: =cut
                   6237: 
1.203     albertel 6238: sub scantron_form_start {
                   6239:     my ($max_bubble)=@_;
                   6240:     my $result= <<SCANTRONFORM;
                   6241: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
1.257     albertel 6242:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
                   6243:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
                   6244:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
1.218     albertel 6245:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
1.257     albertel 6246:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
                   6247:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
                   6248:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
                   6249:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
1.331     albertel 6250:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
1.203     albertel 6251: SCANTRONFORM
1.447     foxr     6252: 
                   6253:   my $line = 0;
                   6254:     while (defined($env{"form.scantron.bubblelines.$line"})) {
                   6255:        my $chunk =
                   6256: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
1.448     foxr     6257:        $chunk .=
                   6258: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
1.503     raeburn  6259:        $chunk .= 
                   6260:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
1.504     raeburn  6261:        $chunk .=
                   6262:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
1.447     foxr     6263:        $result .= $chunk;
                   6264:        $line++;
                   6265:    }
1.203     albertel 6266:     return $result;
                   6267: }
                   6268: 
1.423     albertel 6269: =pod
                   6270: 
                   6271: =item scantron_validate_file
                   6272: 
1.424     albertel 6273:     Dispatch routine for doing validation of a bubble sheet data file.
                   6274: 
                   6275:     Also processes any necessary information resets that need to
                   6276:     occur before validation begins (ignore previous corrections,
                   6277:     restarting the skipped records processing)
                   6278: 
1.423     albertel 6279: =cut
                   6280: 
1.157     albertel 6281: sub scantron_validate_file {
1.608     www      6282:     my ($r,$symb) = @_;
1.157     albertel 6283:     if (!$symb) {return '';}
1.324     albertel 6284:     my $default_form_data=&defaultFormData($symb);
1.200     albertel 6285:     
                   6286:     # do the detection of only doing skipped records first befroe we delete
1.424     albertel 6287:     # them when doing the corrections reset
1.257     albertel 6288:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
1.200     albertel 6289: 	&reset_skipping_status();
                   6290:     }
1.257     albertel 6291:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
1.200     albertel 6292: 	&remember_current_skipped();
1.257     albertel 6293: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
1.200     albertel 6294:     }
                   6295: 
1.257     albertel 6296:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
1.200     albertel 6297: 	&check_for_error($r,&scantron_remove_file('corrected'));
                   6298: 	&check_for_error($r,&scantron_remove_file('skipped'));
                   6299: 	&check_for_error($r,&scantron_remove_scan_data());
1.257     albertel 6300: 	$env{'form.scantron_options_ignore'}='done';
1.192     albertel 6301:     }
1.200     albertel 6302: 
1.257     albertel 6303:     if ($env{'form.scantron_corrections'}) {
1.157     albertel 6304: 	&scantron_process_corrections($r);
                   6305:     }
1.503     raeburn  6306:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
1.157     albertel 6307:     #get the student pick code ready
                   6308:     $r->print(&Apache::loncommon::studentbrowser_javascript());
1.582     raeburn  6309:     my $nav_error;
1.649     raeburn  6310:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
                   6311:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
1.582     raeburn  6312:     if ($nav_error) {
                   6313:         $r->print(&navmap_errormsg());
                   6314:         return '';
                   6315:     }
1.203     albertel 6316:     my $result=&scantron_form_start($max_bubble).$default_form_data;
1.157     albertel 6317:     $r->print($result);
                   6318:     
1.334     albertel 6319:     my @validate_phases=( 'sequence',
                   6320: 			  'ID',
1.157     albertel 6321: 			  'CODE',
                   6322: 			  'doublebubble',
                   6323: 			  'missingbubbles');
1.257     albertel 6324:     if (!$env{'form.validatepass'}) {
                   6325: 	$env{'form.validatepass'} = 0;
1.157     albertel 6326:     }
1.257     albertel 6327:     my $currentphase=$env{'form.validatepass'};
1.157     albertel 6328: 
1.448     foxr     6329: 
1.157     albertel 6330:     my $stop=0;
                   6331:     while (!$stop && $currentphase < scalar(@validate_phases)) {
1.503     raeburn  6332: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
1.157     albertel 6333: 	$r->rflush();
                   6334: 	my $which="scantron_validate_".$validate_phases[$currentphase];
                   6335: 	{
                   6336: 	    no strict 'refs';
                   6337: 	    ($stop,$currentphase)=&$which($r,$currentphase);
                   6338: 	}
                   6339:     }
                   6340:     if (!$stop) {
1.650     raeburn  6341: 	my $warning=&scantron_warning_screen('Start Grading',$symb);
1.542     raeburn  6342: 	$r->print(&mt('Validation process complete.').'<br />'.
                   6343:                   $warning.
                   6344:                   &mt('Perform verification for each student after storage of submissions?').
                   6345:                   '&nbsp;<span class="LC_nobreak"><label>'.
                   6346:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
                   6347:                   ('&nbsp;'x3).'<label>'.
                   6348:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
                   6349:                   '</label></span><br />'.
                   6350:                   &mt('Grading will take longer if you use verification.').'<br />'.
1.650     raeburn  6351:                   &mt('Otherwise, Grade/Manage/Review Bubblesheets [_1] Review bubblesheet data can be used once grading is complete.','&raquo;').'<br /><br />'.
1.542     raeburn  6352:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
                   6353:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
1.157     albertel 6354:     } else {
                   6355: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
                   6356: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
                   6357:     }
                   6358:     if ($stop) {
1.334     albertel 6359: 	if ($validate_phases[$currentphase] eq 'sequence') {
1.539     riegler  6360: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
1.492     albertel 6361: 	    $r->print(' '.&mt('this error').' <br />');
1.334     albertel 6362: 
1.650     raeburn  6363: 	    $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>');
1.334     albertel 6364: 	} else {
1.503     raeburn  6365:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
1.539     riegler  6366: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
1.503     raeburn  6367:             } else {
1.539     riegler  6368:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
1.503     raeburn  6369:             }
1.492     albertel 6370: 	    $r->print(' '.&mt('using corrected info').' <br />');
                   6371: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
                   6372: 	    $r->print(" ".&mt("this scanline saving it for later."));
1.334     albertel 6373: 	}
1.157     albertel 6374:     }
1.614     www      6375:     $r->print(" </form><br />");
1.157     albertel 6376:     return '';
                   6377: }
                   6378: 
1.423     albertel 6379: 
                   6380: =pod
                   6381: 
                   6382: =item scantron_remove_file
                   6383: 
1.424     albertel 6384:    Removes the requested bubble sheet data file, makes sure that
                   6385:    scantron_original_<filename> is never removed
                   6386: 
                   6387: 
1.423     albertel 6388: =cut
                   6389: 
1.200     albertel 6390: sub scantron_remove_file {
1.192     albertel 6391:     my ($which)=@_;
1.257     albertel 6392:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   6393:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.192     albertel 6394:     my $file='scantron_';
1.200     albertel 6395:     if ($which eq 'corrected' || $which eq 'skipped') {
                   6396: 	$file.=$which.'_';
1.192     albertel 6397:     } else {
                   6398: 	return 'refused';
                   6399:     }
1.257     albertel 6400:     $file.=$env{'form.scantron_selectfile'};
1.200     albertel 6401:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
                   6402: }
                   6403: 
1.423     albertel 6404: 
                   6405: =pod
                   6406: 
                   6407: =item scantron_remove_scan_data
                   6408: 
1.424     albertel 6409:    Removes all scan_data correction for the requested bubble sheet
                   6410:    data file.  (In the case that both the are doing skipped records we need
                   6411:    to remember the old skipped lines for the time being so that element
                   6412:    persists for a while.)
                   6413: 
1.423     albertel 6414: =cut
                   6415: 
1.200     albertel 6416: sub scantron_remove_scan_data {
1.257     albertel 6417:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   6418:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.192     albertel 6419:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
                   6420:     my @todelete;
1.257     albertel 6421:     my $filename=$env{'form.scantron_selectfile'};
1.192     albertel 6422:     foreach my $key (@keys) {
                   6423: 	if ($key=~/^\Q$filename\E_/) {
1.257     albertel 6424: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
1.200     albertel 6425: 		$key=~/remember_skipping/) {
                   6426: 		next;
                   6427: 	    }
1.192     albertel 6428: 	    push(@todelete,$key);
                   6429: 	}
                   6430:     }
1.200     albertel 6431:     my $result;
1.192     albertel 6432:     if (@todelete) {
1.491     albertel 6433: 	$result = &Apache::lonnet::del('nohist_scantrondata',
                   6434: 				       \@todelete,$cdom,$cname);
                   6435:     } else {
                   6436: 	$result = 'ok';
1.192     albertel 6437:     }
                   6438:     return $result;
                   6439: }
                   6440: 
1.423     albertel 6441: 
                   6442: =pod
                   6443: 
                   6444: =item scantron_getfile
                   6445: 
1.424     albertel 6446:     Fetches the requested bubble sheet data file (all 3 versions), and
                   6447:     the scan_data hash
                   6448:   
                   6449:   Arguments:
                   6450:     None
                   6451: 
                   6452:   Returns:
                   6453:     2 hash references
                   6454: 
                   6455:      - first one has 
                   6456:          orig      -
                   6457:          corrected -
                   6458:          skipped   -  each of which points to an array ref of the specified
                   6459:                       file broken up into individual lines
                   6460:          count     - number of scanlines
                   6461:  
                   6462:      - second is the scan_data hash possible keys are
1.425     albertel 6463:        ($number refers to scanline numbered $number and thus the key affects
                   6464:         only that scanline
                   6465:         $bubline refers to the specific bubble line element and the aspects
                   6466:         refers to that specific bubble line element)
                   6467: 
                   6468:        $number.user - username:domain to use
                   6469:        $number.CODE_ignore_dup 
                   6470:                     - ignore the duplicate CODE error 
                   6471:        $number.useCODE
                   6472:                     - use the CODE in the scanline as is
                   6473:        $number.no_bubble.$bubline
                   6474:                     - it is valid that there is no bubbled in bubble
                   6475:                       at $number $bubline
                   6476:        remember_skipping
                   6477:                     - a frozen hash containing keys of $number and values
                   6478:                       of either 
                   6479:                         1 - we are on a 'do skipped records pass' and plan
                   6480:                             on processing this line
                   6481:                         2 - we are on a 'do skipped records pass' and this
                   6482:                             scanline has been marked to skip yet again
1.424     albertel 6483: 
1.423     albertel 6484: =cut
                   6485: 
1.157     albertel 6486: sub scantron_getfile {
1.200     albertel 6487:     #FIXME really would prefer a scantron directory
1.257     albertel 6488:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   6489:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.157     albertel 6490:     my $lines;
                   6491:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
1.257     albertel 6492: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
1.157     albertel 6493:     my %scanlines;
                   6494:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
                   6495:     my $temp=$scanlines{'orig'};
                   6496:     $scanlines{'count'}=$#$temp;
                   6497: 
                   6498:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
1.257     albertel 6499: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
1.157     albertel 6500:     if ($lines eq '-1') {
                   6501: 	$scanlines{'corrected'}=[];
                   6502:     } else {
                   6503: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
                   6504:     }
                   6505:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
1.257     albertel 6506: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
1.157     albertel 6507:     if ($lines eq '-1') {
                   6508: 	$scanlines{'skipped'}=[];
                   6509:     } else {
                   6510: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
                   6511:     }
1.175     albertel 6512:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
1.157     albertel 6513:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
                   6514:     my %scan_data = @tmp;
                   6515:     return (\%scanlines,\%scan_data);
                   6516: }
                   6517: 
1.423     albertel 6518: =pod
                   6519: 
                   6520: =item lonnet_putfile
                   6521: 
1.424     albertel 6522:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
                   6523: 
                   6524:  Arguments:
                   6525:    $contents - data to store
                   6526:    $filename - filename to store $contents into
                   6527: 
                   6528:  Returns:
                   6529:    result value from &Apache::lonnet::finishuserfileupload
                   6530: 
1.423     albertel 6531: =cut
                   6532: 
1.157     albertel 6533: sub lonnet_putfile {
                   6534:     my ($contents,$filename)=@_;
1.257     albertel 6535:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   6536:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
                   6537:     $env{'form.sillywaytopassafilearound'}=$contents;
1.275     albertel 6538:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
1.157     albertel 6539: 
                   6540: }
                   6541: 
1.423     albertel 6542: =pod
                   6543: 
                   6544: =item scantron_putfile
                   6545: 
1.424     albertel 6546:     Stores the current version of the bubble sheet data files, and the
                   6547:     scan_data hash. (Does not modify the original version only the
                   6548:     corrected and skipped versions.
                   6549: 
                   6550:  Arguments:
                   6551:     $scanlines - hash ref that looks like the first return value from
                   6552:                  &scantron_getfile()
                   6553:     $scan_data - hash ref that looks like the second return value from
                   6554:                  &scantron_getfile()
                   6555: 
1.423     albertel 6556: =cut
                   6557: 
1.157     albertel 6558: sub scantron_putfile {
                   6559:     my ($scanlines,$scan_data) = @_;
1.200     albertel 6560:     #FIXME really would prefer a scantron directory
1.257     albertel 6561:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   6562:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
1.200     albertel 6563:     if ($scanlines) {
                   6564: 	my $prefix='scantron_';
1.157     albertel 6565: # no need to update orig, shouldn't change
                   6566: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
1.257     albertel 6567: #		    $env{'form.scantron_selectfile'});
1.200     albertel 6568: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
                   6569: 			$prefix.'corrected_'.
1.257     albertel 6570: 			$env{'form.scantron_selectfile'});
1.200     albertel 6571: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
                   6572: 			$prefix.'skipped_'.
1.257     albertel 6573: 			$env{'form.scantron_selectfile'});
1.200     albertel 6574:     }
1.175     albertel 6575:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
1.157     albertel 6576: }
                   6577: 
1.423     albertel 6578: =pod
                   6579: 
                   6580: =item scantron_get_line
                   6581: 
1.424     albertel 6582:    Returns the correct version of the scanline
                   6583: 
                   6584:  Arguments:
                   6585:     $scanlines - hash ref that looks like the first return value from
                   6586:                  &scantron_getfile()
                   6587:     $scan_data - hash ref that looks like the second return value from
                   6588:                  &scantron_getfile()
                   6589:     $i         - number of the requested line (starts at 0)
                   6590: 
                   6591:  Returns:
                   6592:    A scanline, (either the original or the corrected one if it
                   6593:    exists), or undef if the requested scanline should be
                   6594:    skipped. (Either because it's an skipped scanline, or it's an
                   6595:    unskipped scanline and we are not doing a 'do skipped scanlines'
                   6596:    pass.
                   6597: 
1.423     albertel 6598: =cut
                   6599: 
1.157     albertel 6600: sub scantron_get_line {
1.200     albertel 6601:     my ($scanlines,$scan_data,$i)=@_;
1.376     albertel 6602:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
                   6603:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
1.157     albertel 6604:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
                   6605:     return $scanlines->{'orig'}[$i]; 
                   6606: }
                   6607: 
1.423     albertel 6608: =pod
                   6609: 
                   6610: =item scantron_todo_count
                   6611: 
1.424     albertel 6612:     Counts the number of scanlines that need processing.
                   6613: 
                   6614:  Arguments:
                   6615:     $scanlines - hash ref that looks like the first return value from
                   6616:                  &scantron_getfile()
                   6617:     $scan_data - hash ref that looks like the second return value from
                   6618:                  &scantron_getfile()
                   6619: 
                   6620:  Returns:
                   6621:     $count - number of scanlines to process
                   6622: 
1.423     albertel 6623: =cut
                   6624: 
1.200     albertel 6625: sub get_todo_count {
                   6626:     my ($scanlines,$scan_data)=@_;
                   6627:     my $count=0;
                   6628:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
                   6629: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
                   6630: 	if ($line=~/^[\s\cz]*$/) { next; }
                   6631: 	$count++;
                   6632:     }
                   6633:     return $count;
                   6634: }
                   6635: 
1.423     albertel 6636: =pod
                   6637: 
                   6638: =item scantron_put_line
                   6639: 
1.424     albertel 6640:     Updates the 'corrected' or 'skipped' versions of the bubble sheet
                   6641:     data file.
                   6642: 
                   6643:  Arguments:
                   6644:     $scanlines - hash ref that looks like the first return value from
                   6645:                  &scantron_getfile()
                   6646:     $scan_data - hash ref that looks like the second return value from
                   6647:                  &scantron_getfile()
                   6648:     $i         - line number to update
                   6649:     $newline   - contents of the updated scanline
                   6650:     $skip      - if true make the line for skipping and update the
                   6651:                  'skipped' file
                   6652: 
1.423     albertel 6653: =cut
                   6654: 
1.157     albertel 6655: sub scantron_put_line {
1.200     albertel 6656:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
1.157     albertel 6657:     if ($skip) {
                   6658: 	$scanlines->{'skipped'}[$i]=$newline;
1.376     albertel 6659: 	&start_skipping($scan_data,$i);
1.157     albertel 6660: 	return;
                   6661:     }
                   6662:     $scanlines->{'corrected'}[$i]=$newline;
                   6663: }
                   6664: 
1.423     albertel 6665: =pod
                   6666: 
                   6667: =item scantron_clear_skip
                   6668: 
1.424     albertel 6669:    Remove a line from the 'skipped' file
                   6670: 
                   6671:  Arguments:
                   6672:     $scanlines - hash ref that looks like the first return value from
                   6673:                  &scantron_getfile()
                   6674:     $scan_data - hash ref that looks like the second return value from
                   6675:                  &scantron_getfile()
                   6676:     $i         - line number to update
                   6677: 
1.423     albertel 6678: =cut
                   6679: 
1.376     albertel 6680: sub scantron_clear_skip {
                   6681:     my ($scanlines,$scan_data,$i)=@_;
                   6682:     if (exists($scanlines->{'skipped'}[$i])) {
                   6683: 	undef($scanlines->{'skipped'}[$i]);
                   6684: 	return 1;
                   6685:     }
                   6686:     return 0;
                   6687: }
                   6688: 
1.423     albertel 6689: =pod
                   6690: 
                   6691: =item scantron_filter_not_exam
                   6692: 
1.424     albertel 6693:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
                   6694:    filter out resources that are not marked as 'exam' mode
                   6695: 
1.423     albertel 6696: =cut
                   6697: 
1.334     albertel 6698: sub scantron_filter_not_exam {
                   6699:     my ($curres)=@_;
                   6700:     
                   6701:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
                   6702: 	# if the user has asked to not have either hidden
                   6703: 	# or 'randomout' controlled resources to be graded
                   6704: 	# don't include them
                   6705: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
                   6706: 	    && $curres->randomout) {
                   6707: 	    return 0;
                   6708: 	}
                   6709: 	return 1;
                   6710:     }
                   6711:     return 0;
                   6712: }
                   6713: 
1.423     albertel 6714: =pod
                   6715: 
                   6716: =item scantron_validate_sequence
                   6717: 
1.424     albertel 6718:     Validates the selected sequence, checking for resource that are
                   6719:     not set to exam mode.
                   6720: 
1.423     albertel 6721: =cut
                   6722: 
1.334     albertel 6723: sub scantron_validate_sequence {
                   6724:     my ($r,$currentphase) = @_;
                   6725: 
                   6726:     my $navmap=Apache::lonnavmaps::navmap->new();
1.582     raeburn  6727:     unless (ref($navmap)) {
                   6728:         $r->print(&navmap_errormsg());
                   6729:         return (1,$currentphase);
                   6730:     }
1.334     albertel 6731:     my (undef,undef,$sequence)=
                   6732: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
                   6733: 
                   6734:     my $map=$navmap->getResourceByUrl($sequence);
                   6735: 
                   6736:     $r->print('<input type="hidden" name="validate_sequence_exam"
                   6737:                                     value="ignore" />');
                   6738:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
                   6739: 	my @resources=
                   6740: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
                   6741: 	if (@resources) {
1.357     banghart 6742: 	    $r->print("<p>".&mt('Some resources in the sequence currently are not set to exam mode. Grading these resources currently may not work correctly.')."</p>");
1.334     albertel 6743: 	    return (1,$currentphase);
                   6744: 	}
                   6745:     }
                   6746: 
                   6747:     return (0,$currentphase+1);
                   6748: }
                   6749: 
1.423     albertel 6750: 
                   6751: 
1.157     albertel 6752: sub scantron_validate_ID {
                   6753:     my ($r,$currentphase) = @_;
                   6754:     
                   6755:     #get student info
                   6756:     my $classlist=&Apache::loncoursedata::get_classlist();
                   6757:     my %idmap=&username_to_idmap($classlist);
                   6758: 
                   6759:     #get scantron line setup
1.257     albertel 6760:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.157     albertel 6761:     my ($scanlines,$scan_data)=&scantron_getfile();
1.582     raeburn  6762: 
                   6763:     my $nav_error;
1.649     raeburn  6764:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
1.582     raeburn  6765:     if ($nav_error) {
                   6766:         $r->print(&navmap_errormsg());
                   6767:         return(1,$currentphase);
                   6768:     }
1.157     albertel 6769: 
                   6770:     my %found=('ids'=>{},'usernames'=>{});
                   6771:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
1.200     albertel 6772: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
1.157     albertel 6773: 	if ($line=~/^[\s\cz]*$/) { next; }
                   6774: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
                   6775: 						 $scan_data);
                   6776: 	my $id=$$scan_record{'scantron.ID'};
                   6777: 	my $found;
                   6778: 	foreach my $checkid (keys(%idmap)) {
                   6779: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
                   6780: 	}
                   6781: 	if ($found) {
                   6782: 	    my $username=$idmap{$found};
                   6783: 	    if ($found{'ids'}{$found}) {
                   6784: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
                   6785: 					 $line,'duplicateID',$found);
1.194     albertel 6786: 		return(1,$currentphase);
1.157     albertel 6787: 	    } elsif ($found{'usernames'}{$username}) {
                   6788: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
                   6789: 					 $line,'duplicateID',$username);
1.194     albertel 6790: 		return(1,$currentphase);
1.157     albertel 6791: 	    }
1.186     albertel 6792: 	    #FIXME store away line we previously saw the ID on to use above
1.157     albertel 6793: 	    $found{'ids'}{$found}++;
                   6794: 	    $found{'usernames'}{$username}++;
                   6795: 	} else {
                   6796: 	    if ($id =~ /^\s*$/) {
1.158     albertel 6797: 		my $username=&scan_data($scan_data,"$i.user");
1.157     albertel 6798: 		if (defined($username) && $found{'usernames'}{$username}) {
                   6799: 		    &scantron_get_correction($r,$i,$scan_record,
                   6800: 					     \%scantron_config,
                   6801: 					     $line,'duplicateID',$username);
1.194     albertel 6802: 		    return(1,$currentphase);
1.157     albertel 6803: 		} elsif (!defined($username)) {
                   6804: 		    &scantron_get_correction($r,$i,$scan_record,
                   6805: 					     \%scantron_config,
                   6806: 					     $line,'incorrectID');
1.194     albertel 6807: 		    return(1,$currentphase);
1.157     albertel 6808: 		}
                   6809: 		$found{'usernames'}{$username}++;
                   6810: 	    } else {
                   6811: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
                   6812: 					 $line,'incorrectID');
1.194     albertel 6813: 		return(1,$currentphase);
1.157     albertel 6814: 	    }
                   6815: 	}
                   6816:     }
                   6817: 
                   6818:     return (0,$currentphase+1);
                   6819: }
                   6820: 
1.423     albertel 6821: 
1.157     albertel 6822: sub scantron_get_correction {
                   6823:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
1.454     banghart 6824: #FIXME in the case of a duplicated ID the previous line, probably need
1.157     albertel 6825: #to show both the current line and the previous one and allow skipping
                   6826: #the previous one or the current one
                   6827: 
1.333     albertel 6828:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
1.492     albertel 6829: 	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
                   6830: 			    " for PaperID <tt>[_1]</tt>",
                   6831: 			    $$scan_record{'scantron.PaperID'})."</p> \n");
1.157     albertel 6832:     } else {
1.492     albertel 6833: 	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
                   6834: 			    " in scanline [_1] <pre>[_2]</pre>",
                   6835: 			    $i,$line)."</p> \n");
                   6836:     }
                   6837:     my $message="<p>".&mt("The ID on the form is  <tt>[_1]</tt><br />".
                   6838: 			  "The name on the paper is [_2],[_3]",
                   6839: 			  $$scan_record{'scantron.ID'},
                   6840: 			  $$scan_record{'scantron.LastName'},
                   6841: 			  $$scan_record{'scantron.FirstName'})."</p>";
1.242     albertel 6842: 
1.157     albertel 6843:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
                   6844:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
1.503     raeburn  6845:                            # Array populated for doublebubble or
                   6846:     my @lines_to_correct;  # missingbubble errors to build javascript
                   6847:                            # to validate radio button checking   
                   6848: 
1.157     albertel 6849:     if ($error =~ /ID$/) {
1.186     albertel 6850: 	if ($error eq 'incorrectID') {
1.492     albertel 6851: 	    $r->print("<p>".&mt("The encoded ID is not in the classlist").
                   6852: 		      "</p>\n");
1.157     albertel 6853: 	} elsif ($error eq 'duplicateID') {
1.492     albertel 6854: 	    $r->print("<p>".&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
1.157     albertel 6855: 	}
1.242     albertel 6856: 	$r->print($message);
1.492     albertel 6857: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
1.157     albertel 6858: 	$r->print("\n<ul><li> ");
                   6859: 	#FIXME it would be nice if this sent back the user ID and
                   6860: 	#could do partial userID matches
                   6861: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
                   6862: 				       'scantron_username','scantron_domain'));
                   6863: 	$r->print(": <input type='text' name='scantron_username' value='' />");
                   6864: 	$r->print("\n@".
1.257     albertel 6865: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
1.157     albertel 6866: 
                   6867: 	$r->print('</li>');
1.186     albertel 6868:     } elsif ($error =~ /CODE$/) {
                   6869: 	if ($error eq 'incorrectCODE') {
1.492     albertel 6870: 	    $r->print("<p>".&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
1.186     albertel 6871: 	} elsif ($error eq 'duplicateCODE') {
1.492     albertel 6872: 	    $r->print("<p>".&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
1.186     albertel 6873: 	}
1.492     albertel 6874: 	$r->print("<p>".&mt("The CODE on the form is  <tt>'[_1]'</tt>",
                   6875: 			    $$scan_record{'scantron.CODE'})."<br />\n");
1.242     albertel 6876: 	$r->print($message);
1.492     albertel 6877: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
1.187     albertel 6878: 	$r->print("\n<br /> ");
1.194     albertel 6879: 	my $i=0;
1.273     albertel 6880: 	if ($error eq 'incorrectCODE' 
                   6881: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
1.194     albertel 6882: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
1.278     albertel 6883: 	    if ($closest > 0) {
                   6884: 		foreach my $testcode (@{$closest}) {
                   6885: 		    my $checked='';
1.569     bisitz   6886: 		    if (!$i) { $checked=' checked="checked"'; }
1.492     albertel 6887: 		    $r->print("
                   6888:    <label>
1.569     bisitz   6889:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
1.492     albertel 6890:        ".&mt("Use the similar CODE [_1] instead.",
                   6891: 	    "<b><tt>".$testcode."</tt></b>")."
                   6892:     </label>
                   6893:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
1.278     albertel 6894: 		    $r->print("\n<br />");
                   6895: 		    $i++;
                   6896: 		}
1.194     albertel 6897: 	    }
                   6898: 	}
1.273     albertel 6899: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
1.569     bisitz   6900: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
1.492     albertel 6901: 	    $r->print("
                   6902:     <label>
1.569     bisitz   6903:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
1.492     albertel 6904:        ".&mt("Use the CODE [_1] that is was on the paper, ignoring the error.",
                   6905: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
                   6906:     </label>");
1.273     albertel 6907: 	    $r->print("\n<br />");
                   6908: 	}
1.194     albertel 6909: 
1.597     wenzelju 6910: 	$r->print(&Apache::lonhtmlcommon::scripttag(<<ENDSCRIPT));
1.188     albertel 6911: function change_radio(field) {
1.190     albertel 6912:     var slct=document.scantronupload.scantron_CODE_resolution;
1.188     albertel 6913:     var i;
                   6914:     for (i=0;i<slct.length;i++) {
                   6915:         if (slct[i].value==field) { slct[i].checked=true; }
                   6916:     }
                   6917: }
                   6918: ENDSCRIPT
1.187     albertel 6919: 	my $href="/adm/pickcode?".
1.359     www      6920: 	   "form=".&escape("scantronupload").
                   6921: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
                   6922: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
                   6923: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
                   6924: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
1.332     albertel 6925: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
1.492     albertel 6926: 	    $r->print("
                   6927:     <label>
                   6928:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
                   6929:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
                   6930: 	     "<a target='_blank' href='$href'>","</a>")."
                   6931:     </label> 
1.558     bisitz   6932:     ".&mt("Selected CODE is [_1]",'<input readonly="readonly" type="text" size="8" name="scantron_CODE_selectedvalue" onfocus="javascript:change_radio(\'use_found\')" onchange="javascript:change_radio(\'use_found\')" />'));
1.332     albertel 6933: 	    $r->print("\n<br />");
                   6934: 	}
1.492     albertel 6935: 	$r->print("
                   6936:     <label>
                   6937:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
                   6938:        ".&mt("Use [_1] as the CODE.",
                   6939: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
1.187     albertel 6940: 	$r->print("\n<br /><br />");
1.157     albertel 6941:     } elsif ($error eq 'doublebubble') {
1.503     raeburn  6942: 	$r->print("<p>".&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
1.497     foxr     6943: 
                   6944: 	# The form field scantron_questions is acutally a list of line numbers.
                   6945: 	# represented by this form so:
                   6946: 
                   6947: 	my $line_list = &questions_to_line_list($arg);
                   6948: 
1.157     albertel 6949: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
1.497     foxr     6950: 		  $line_list.'" />');
1.242     albertel 6951: 	$r->print($message);
1.492     albertel 6952: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
1.157     albertel 6953: 	foreach my $question (@{$arg}) {
1.503     raeburn  6954: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
                   6955:                                                    $scan_record, $error);
1.524     raeburn  6956:             push(@lines_to_correct,@linenums);
1.157     albertel 6957: 	}
1.503     raeburn  6958:         $r->print(&verify_bubbles_checked(@lines_to_correct));
1.157     albertel 6959:     } elsif ($error eq 'missingbubble') {
1.492     albertel 6960: 	$r->print("<p>".&mt("There have been <b>no</b> bubbles scanned for some question(s)")."</p>\n");
1.242     albertel 6961: 	$r->print($message);
1.492     albertel 6962: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
1.503     raeburn  6963: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
1.497     foxr     6964: 
1.503     raeburn  6965: 	# The form field scantron_questions is actually a list of line numbers not
1.497     foxr     6966: 	# a list of question numbers. Therefore:
                   6967: 	#
                   6968: 	
                   6969: 	my $line_list = &questions_to_line_list($arg);
                   6970: 
1.157     albertel 6971: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
1.497     foxr     6972: 		  $line_list.'" />');
1.157     albertel 6973: 	foreach my $question (@{$arg}) {
1.503     raeburn  6974: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
                   6975:                                                    $scan_record, $error);
1.524     raeburn  6976:             push(@lines_to_correct,@linenums);
1.157     albertel 6977: 	}
1.503     raeburn  6978:         $r->print(&verify_bubbles_checked(@lines_to_correct));
1.157     albertel 6979:     } else {
                   6980: 	$r->print("\n<ul>");
                   6981:     }
                   6982:     $r->print("\n</li></ul>");
1.497     foxr     6983: }
                   6984: 
1.503     raeburn  6985: sub verify_bubbles_checked {
                   6986:     my (@ansnums) = @_;
                   6987:     my $ansnumstr = join('","',@ansnums);
                   6988:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
1.597     wenzelju 6989:     my $output = &Apache::lonhtmlcommon::scripttag((<<ENDSCRIPT));
1.503     raeburn  6990: function verify_bubble_radio(form) {
                   6991:     var ansnumArray = new Array ("$ansnumstr");
                   6992:     var need_bubble_count = 0;
                   6993:     for (var i=0; i<ansnumArray.length; i++) {
                   6994:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
                   6995:             var bubble_picked = 0; 
                   6996:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
                   6997:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
                   6998:                     bubble_picked = 1;
                   6999:                 }
                   7000:             }
                   7001:             if (bubble_picked == 0) {
                   7002:                 need_bubble_count ++;
                   7003:             }
                   7004:         }
                   7005:     }
                   7006:     if (need_bubble_count) {
                   7007:         alert("$warning");
                   7008:         return;
                   7009:     }
                   7010:     form.submit(); 
                   7011: }
                   7012: ENDSCRIPT
                   7013:     return $output;
                   7014: }
                   7015: 
1.497     foxr     7016: =pod
                   7017: 
                   7018: =item  questions_to_line_list
1.157     albertel 7019: 
1.497     foxr     7020: Converts a list of questions into a string of comma separated
                   7021: line numbers in the answer sheet used by the questions.  This is
                   7022: used to fill in the scantron_questions form field.
                   7023: 
                   7024:   Arguments:
                   7025:      questions    - Reference to an array of questions.
                   7026: 
                   7027: =cut
                   7028: 
                   7029: 
                   7030: sub questions_to_line_list {
                   7031:     my ($questions) = @_;
                   7032:     my @lines;
                   7033: 
1.503     raeburn  7034:     foreach my $item (@{$questions}) {
                   7035:         my $question = $item;
                   7036:         my ($first,$count,$last);
                   7037:         if ($item =~ /^(\d+)\.(\d+)$/) {
                   7038:             $question = $1;
                   7039:             my $subquestion = $2;
                   7040:             $first = $first_bubble_line{$question-1} + 1;
                   7041:             my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
                   7042:             my $subcount = 1;
                   7043:             while ($subcount<$subquestion) {
                   7044:                 $first += $subans[$subcount-1];
                   7045:                 $subcount ++;
                   7046:             }
                   7047:             $count = $subans[$subquestion-1];
                   7048:         } else {
                   7049: 	    $first   = $first_bubble_line{$question-1} + 1;
                   7050: 	    $count   = $bubble_lines_per_response{$question-1};
                   7051:         }
1.506     raeburn  7052:         $last = $first+$count-1;
1.503     raeburn  7053:         push(@lines, ($first..$last));
1.497     foxr     7054:     }
                   7055:     return join(',', @lines);
                   7056: }
                   7057: 
                   7058: =pod 
                   7059: 
                   7060: =item prompt_for_corrections
                   7061: 
                   7062: Prompts for a potentially multiline correction to the
                   7063: user's bubbling (factors out common code from scantron_get_correction
                   7064: for multi and missing bubble cases).
                   7065: 
                   7066:  Arguments:
                   7067:    $r           - Apache request object.
                   7068:    $question    - The question number to prompt for.
                   7069:    $scan_config - The scantron file configuration hash.
                   7070:    $scan_record - Reference to the hash that has the the parsed scanlines.
1.503     raeburn  7071:    $error       - Type of error
1.497     foxr     7072: 
                   7073:  Implicit inputs:
                   7074:    %bubble_lines_per_response   - Starting line numbers for each question.
                   7075:                                   Numbered from 0 (but question numbers are from
                   7076:                                   1.
                   7077:    %first_bubble_line           - Starting bubble line for each question.
1.509     raeburn  7078:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
                   7079:                                   type problems render as separate sub-questions, 
1.503     raeburn  7080:                                   in exam mode. This hash contains a 
                   7081:                                   comma-separated list of the lines per 
                   7082:                                   sub-question.
1.510     raeburn  7083:    %responsetype_per_response   - essayresponse, formularesponse,
                   7084:                                   stringresponse, imageresponse, reactionresponse,
                   7085:                                   and organicresponse type problem parts can have
1.503     raeburn  7086:                                   multiple lines per response if the weight
                   7087:                                   assigned exceeds 10.  In this case, only
                   7088:                                   one bubble per line is permitted, but more 
                   7089:                                   than one line might contain bubbles, e.g.
                   7090:                                   bubbling of: line 1 - J, line 2 - J, 
                   7091:                                   line 3 - B would assign 22 points.  
1.497     foxr     7092: 
                   7093: =cut
                   7094: 
                   7095: sub prompt_for_corrections {
1.503     raeburn  7096:     my ($r, $question, $scan_config, $scan_record, $error) = @_;
                   7097:     my ($current_line,$lines);
                   7098:     my @linenums;
                   7099:     my $questionnum = $question;
                   7100:     if ($question =~ /^(\d+)\.(\d+)$/) {
                   7101:         $question = $1;
                   7102:         $current_line = $first_bubble_line{$question-1} + 1 ;
                   7103:         my $subquestion = $2;
                   7104:         my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
                   7105:         my $subcount = 1;
                   7106:         while ($subcount<$subquestion) {
                   7107:             $current_line += $subans[$subcount-1];
                   7108:             $subcount ++;
                   7109:         }
                   7110:         $lines = $subans[$subquestion-1];
                   7111:     } else {
                   7112:         $current_line = $first_bubble_line{$question-1} + 1 ;
                   7113:         $lines        = $bubble_lines_per_response{$question-1};
                   7114:     }
1.497     foxr     7115:     if ($lines > 1) {
1.503     raeburn  7116:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
                   7117:         if (($responsetype_per_response{$question-1} eq 'essayresponse') ||
                   7118:             ($responsetype_per_response{$question-1} eq 'formularesponse') ||
1.510     raeburn  7119:             ($responsetype_per_response{$question-1} eq 'stringresponse') ||
                   7120:             ($responsetype_per_response{$question-1} eq 'imageresponse') ||
                   7121:             ($responsetype_per_response{$question-1} eq 'reactionresponse') ||
                   7122:             ($responsetype_per_response{$question-1} eq 'organicresponse')) {
1.572     www      7123:             $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
1.503     raeburn  7124:         } else {
                   7125:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
                   7126:         }
1.497     foxr     7127:     }
                   7128:     for (my $i =0; $i < $lines; $i++) {
1.503     raeburn  7129:         my $selected = $$scan_record{"scantron.$current_line.answer"};
                   7130: 	&scantron_bubble_selector($r,$scan_config,$current_line, 
                   7131: 	        		  $questionnum,$error,split('', $selected));
1.524     raeburn  7132:         push(@linenums,$current_line);
1.497     foxr     7133: 	$current_line++;
                   7134:     }
                   7135:     if ($lines > 1) {
                   7136: 	$r->print("<hr /><br />");
                   7137:     }
1.503     raeburn  7138:     return @linenums;
1.157     albertel 7139: }
1.423     albertel 7140: 
                   7141: =pod
                   7142: 
                   7143: =item scantron_bubble_selector
                   7144:   
                   7145:    Generates the html radiobuttons to correct a single bubble line
1.424     albertel 7146:    possibly showing the existing the selected bubbles if known
1.423     albertel 7147: 
                   7148:  Arguments:
                   7149:     $r           - Apache request object
                   7150:     $scan_config - hash from &get_scantron_config()
1.497     foxr     7151:     $line        - Number of the line being displayed.
1.503     raeburn  7152:     $questionnum - Question number (may include subquestion)
                   7153:     $error       - Type of error.
1.497     foxr     7154:     @selected    - Array of bubbles picked on this line.
1.423     albertel 7155: 
                   7156: =cut
                   7157: 
1.157     albertel 7158: sub scantron_bubble_selector {
1.503     raeburn  7159:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
1.157     albertel 7160:     my $max=$$scan_config{'Qlength'};
1.274     albertel 7161: 
                   7162:     my $scmode=$$scan_config{'Qon'};
1.649     raeburn  7163:     if ($scmode eq 'number' || $scmode eq 'letter') { 
                   7164:         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
                   7165:             ($$scan_config{'BubblesPerRow'} > 0)) {
                   7166:             $max=$$scan_config{'BubblesPerRow'};
                   7167:             if (($scmode eq 'number') && ($max > 10)) {
                   7168:                 $max = 10;
                   7169:             } elsif (($scmode eq 'letter') && $max > 26) {
                   7170:                 $max = 26;
                   7171:             }
                   7172:         } else {
                   7173:             $max = 10;
                   7174:         }
                   7175:     }
1.274     albertel 7176: 
1.157     albertel 7177:     my @alphabet=('A'..'Z');
1.503     raeburn  7178:     $r->print(&Apache::loncommon::start_data_table().
                   7179:               &Apache::loncommon::start_data_table_row());
                   7180:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
1.497     foxr     7181:     for (my $i=0;$i<$max+1;$i++) {
                   7182: 	$r->print("\n".'<td align="center">');
                   7183: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
                   7184: 	else { $r->print('&nbsp;'); }
                   7185: 	$r->print('</td>');
                   7186:     }
1.503     raeburn  7187:     $r->print(&Apache::loncommon::end_data_table_row().
                   7188:               &Apache::loncommon::start_data_table_row());
1.497     foxr     7189:     for (my $i=0;$i<$max;$i++) {
                   7190: 	$r->print("\n".
                   7191: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
                   7192: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
                   7193:     }
1.503     raeburn  7194:     my $nobub_checked = ' ';
                   7195:     if ($error eq 'missingbubble') {
                   7196:         $nobub_checked = ' checked = "checked" ';
                   7197:     }
                   7198:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
                   7199: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
                   7200:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
                   7201:               $line.'" value="'.$questionnum.'" /></td>');
                   7202:     $r->print(&Apache::loncommon::end_data_table_row().
                   7203:               &Apache::loncommon::end_data_table());
1.157     albertel 7204: }
                   7205: 
1.423     albertel 7206: =pod
                   7207: 
                   7208: =item num_matches
                   7209: 
1.424     albertel 7210:    Counts the number of characters that are the same between the two arguments.
                   7211: 
                   7212:  Arguments:
                   7213:    $orig - CODE from the scanline
                   7214:    $code - CODE to match against
                   7215: 
                   7216:  Returns:
                   7217:    $count - integer count of the number of same characters between the
                   7218:             two arguments
                   7219: 
1.423     albertel 7220: =cut
                   7221: 
1.194     albertel 7222: sub num_matches {
                   7223:     my ($orig,$code) = @_;
                   7224:     my @code=split(//,$code);
                   7225:     my @orig=split(//,$orig);
                   7226:     my $same=0;
                   7227:     for (my $i=0;$i<scalar(@code);$i++) {
                   7228: 	if ($code[$i] eq $orig[$i]) { $same++; }
                   7229:     }
                   7230:     return $same;
                   7231: }
                   7232: 
1.423     albertel 7233: =pod
                   7234: 
                   7235: =item scantron_get_closely_matching_CODEs
                   7236: 
1.424     albertel 7237:    Cycles through all CODEs and finds the set that has the greatest
                   7238:    number of same characters as the provided CODE
                   7239: 
                   7240:  Arguments:
                   7241:    $allcodes - hash ref returned by &get_codes()
                   7242:    $CODE     - CODE from the current scanline
                   7243: 
                   7244:  Returns:
                   7245:    2 element list
                   7246:     - first elements is number of how closely matching the best fit is 
                   7247:       (5 means best set has 5 matching characters)
                   7248:     - second element is an arrary ref containing the set of valid CODEs
                   7249:       that best fit the passed in CODE
                   7250: 
1.423     albertel 7251: =cut
                   7252: 
1.194     albertel 7253: sub scantron_get_closely_matching_CODEs {
                   7254:     my ($allcodes,$CODE)=@_;
                   7255:     my @CODEs;
                   7256:     foreach my $testcode (sort(keys(%{$allcodes}))) {
                   7257: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
                   7258:     }
                   7259: 
                   7260:     return ($#CODEs,$CODEs[-1]);
                   7261: }
                   7262: 
1.423     albertel 7263: =pod
                   7264: 
                   7265: =item get_codes
                   7266: 
1.424     albertel 7267:    Builds a hash which has keys of all of the valid CODEs from the selected
                   7268:    set of remembered CODEs.
                   7269: 
                   7270:  Arguments:
                   7271:   $old_name - name of the set of remembered CODEs
                   7272:   $cdom     - domain of the course
                   7273:   $cnum     - internal course name
                   7274: 
                   7275:  Returns:
                   7276:   %allcodes - keys are the valid CODEs, values are all 1
                   7277: 
1.423     albertel 7278: =cut
                   7279: 
1.194     albertel 7280: sub get_codes {
1.280     foxr     7281:     my ($old_name, $cdom, $cnum) = @_;
                   7282:     if (!$old_name) {
                   7283: 	$old_name=$env{'form.scantron_CODElist'};
                   7284:     }
                   7285:     if (!$cdom) {
                   7286: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
                   7287:     }
                   7288:     if (!$cnum) {
                   7289: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
                   7290:     }
1.278     albertel 7291:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
                   7292: 				    $cdom,$cnum);
                   7293:     my %allcodes;
                   7294:     if ($result{"type\0$old_name"} eq 'number') {
                   7295: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
                   7296:     } else {
                   7297: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
                   7298:     }
1.194     albertel 7299:     return %allcodes;
                   7300: }
                   7301: 
1.423     albertel 7302: =pod
                   7303: 
                   7304: =item scantron_validate_CODE
                   7305: 
1.424     albertel 7306:    Validates all scanlines in the selected file to not have any
                   7307:    invalid or underspecified CODEs and that none of the codes are
                   7308:    duplicated if this was requested.
                   7309: 
1.423     albertel 7310: =cut
                   7311: 
1.157     albertel 7312: sub scantron_validate_CODE {
                   7313:     my ($r,$currentphase) = @_;
1.257     albertel 7314:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.186     albertel 7315:     if ($scantron_config{'CODElocation'} &&
                   7316: 	$scantron_config{'CODEstart'} &&
                   7317: 	$scantron_config{'CODElength'}) {
1.257     albertel 7318: 	if (!defined($env{'form.scantron_CODElist'})) {
1.186     albertel 7319: 	    &FIXME_blow_up()
                   7320: 	}
                   7321:     } else {
                   7322: 	return (0,$currentphase+1);
                   7323:     }
                   7324:     
                   7325:     my %usedCODEs;
                   7326: 
1.194     albertel 7327:     my %allcodes=&get_codes();
1.186     albertel 7328: 
1.582     raeburn  7329:     my $nav_error;
1.649     raeburn  7330:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
1.582     raeburn  7331:     if ($nav_error) {
                   7332:         $r->print(&navmap_errormsg());
                   7333:         return(1,$currentphase);
                   7334:     }
1.447     foxr     7335: 
1.186     albertel 7336:     my ($scanlines,$scan_data)=&scantron_getfile();
                   7337:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
1.200     albertel 7338: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
1.186     albertel 7339: 	if ($line=~/^[\s\cz]*$/) { next; }
                   7340: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
                   7341: 						 $scan_data);
                   7342: 	my $CODE=$$scan_record{'scantron.CODE'};
                   7343: 	my $error=0;
1.224     albertel 7344: 	if (!&Apache::lonnet::validCODE($CODE)) {
                   7345: 	    &scantron_get_correction($r,$i,$scan_record,
                   7346: 				     \%scantron_config,
                   7347: 				     $line,'incorrectCODE',\%allcodes);
                   7348: 	    return(1,$currentphase);
                   7349: 	}
1.221     albertel 7350: 	if (%allcodes && !exists($allcodes{$CODE}) 
                   7351: 	    && !$$scan_record{'scantron.useCODE'}) {
1.186     albertel 7352: 	    &scantron_get_correction($r,$i,$scan_record,
                   7353: 				     \%scantron_config,
1.194     albertel 7354: 				     $line,'incorrectCODE',\%allcodes);
                   7355: 	    return(1,$currentphase);
1.186     albertel 7356: 	}
1.214     albertel 7357: 	if (exists($usedCODEs{$CODE}) 
1.257     albertel 7358: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
1.192     albertel 7359: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
1.186     albertel 7360: 	    &scantron_get_correction($r,$i,$scan_record,
                   7361: 				     \%scantron_config,
1.194     albertel 7362: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
                   7363: 	    return(1,$currentphase);
1.186     albertel 7364: 	}
1.524     raeburn  7365: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
1.186     albertel 7366:     }
1.157     albertel 7367:     return (0,$currentphase+1);
                   7368: }
                   7369: 
1.423     albertel 7370: =pod
                   7371: 
                   7372: =item scantron_validate_doublebubble
                   7373: 
1.424     albertel 7374:    Validates all scanlines in the selected file to not have any
                   7375:    bubble lines with multiple bubbles marked.
                   7376: 
1.423     albertel 7377: =cut
                   7378: 
1.157     albertel 7379: sub scantron_validate_doublebubble {
                   7380:     my ($r,$currentphase) = @_;
                   7381:     #get student info
                   7382:     my $classlist=&Apache::loncoursedata::get_classlist();
                   7383:     my %idmap=&username_to_idmap($classlist);
                   7384: 
                   7385:     #get scantron line setup
1.257     albertel 7386:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.157     albertel 7387:     my ($scanlines,$scan_data)=&scantron_getfile();
1.583     raeburn  7388:     my $nav_error;
1.649     raeburn  7389:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
1.583     raeburn  7390:     if ($nav_error) {
                   7391:         $r->print(&navmap_errormsg());
                   7392:         return(1,$currentphase);
                   7393:     }
1.447     foxr     7394: 
1.157     albertel 7395:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
1.200     albertel 7396: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
1.157     albertel 7397: 	if ($line=~/^[\s\cz]*$/) { next; }
                   7398: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
                   7399: 						 $scan_data);
                   7400: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
                   7401: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
                   7402: 				 'doublebubble',
                   7403: 				 $$scan_record{'scantron.doubleerror'});
                   7404:     	return (1,$currentphase);
                   7405:     }
                   7406:     return (0,$currentphase+1);
                   7407: }
                   7408: 
1.423     albertel 7409: 
1.503     raeburn  7410: sub scantron_get_maxbubble {
1.649     raeburn  7411:     my ($nav_error,$scantron_config) = @_;
1.257     albertel 7412:     if (defined($env{'form.scantron_maxbubble'}) &&
                   7413: 	$env{'form.scantron_maxbubble'}) {
1.447     foxr     7414: 	&restore_bubble_lines();
1.257     albertel 7415: 	return $env{'form.scantron_maxbubble'};
1.191     albertel 7416:     }
1.330     albertel 7417: 
1.447     foxr     7418:     my (undef, undef, $sequence) =
1.257     albertel 7419: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
1.330     albertel 7420: 
1.447     foxr     7421:     my $navmap=Apache::lonnavmaps::navmap->new();
1.582     raeburn  7422:     unless (ref($navmap)) {
                   7423:         if (ref($nav_error)) {
                   7424:             $$nav_error = 1;
                   7425:         }
1.591     raeburn  7426:         return;
1.582     raeburn  7427:     }
1.191     albertel 7428:     my $map=$navmap->getResourceByUrl($sequence);
                   7429:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
1.649     raeburn  7430:     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
1.330     albertel 7431: 
                   7432:     &Apache::lonxml::clear_problem_counter();
                   7433: 
1.557     raeburn  7434:     my $uname       = $env{'user.name'};
                   7435:     my $udom        = $env{'user.domain'};
1.435     foxr     7436:     my $cid         = $env{'request.course.id'};
                   7437:     my $total_lines = 0;
                   7438:     %bubble_lines_per_response = ();
1.447     foxr     7439:     %first_bubble_line         = ();
1.503     raeburn  7440:     %subdivided_bubble_lines   = ();
                   7441:     %responsetype_per_response = ();
1.554     raeburn  7442: 
1.447     foxr     7443:     my $response_number = 0;
                   7444:     my $bubble_line     = 0;
1.191     albertel 7445:     foreach my $resource (@resources) {
1.649     raeburn  7446:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,$udom,undef,$bubbles_per_row);
1.542     raeburn  7447:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
                   7448: 	    foreach my $part_id (@{$parts}) {
                   7449:                 my $lines;
                   7450: 
                   7451: 	        # TODO - make this a persistent hash not an array.
                   7452: 
                   7453:                 # optionresponse, matchresponse and rankresponse type items 
                   7454:                 # render as separate sub-questions in exam mode.
                   7455:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
                   7456:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
                   7457:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
                   7458:                     my ($numbub,$numshown);
                   7459:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
                   7460:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
                   7461:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
                   7462:                         }
                   7463:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
                   7464:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
                   7465:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
                   7466:                         }
                   7467:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
                   7468:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
                   7469:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
                   7470:                         }
                   7471:                     }
                   7472:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
                   7473:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
                   7474:                     }
1.649     raeburn  7475:                     my $bubbles_per_row =
                   7476:                         &bubblesheet_bubbles_per_row($scantron_config);
                   7477:                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
                   7478:                     if (($numbub % $bubbles_per_row) != 0) {
1.542     raeburn  7479:                         $inner_bubble_lines++;
                   7480:                     }
                   7481:                     for (my $i=0; $i<$numshown; $i++) {
                   7482:                         $subdivided_bubble_lines{$response_number} .= 
                   7483:                             $inner_bubble_lines.',';
                   7484:                     }
                   7485:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
                   7486:                     $lines = $numshown * $inner_bubble_lines;
                   7487:                 } else {
                   7488:                     $lines = $analysis->{"$part_id.bubble_lines"};
1.649     raeburn  7489:                 }
1.542     raeburn  7490: 
                   7491:                 $first_bubble_line{$response_number} = $bubble_line;
                   7492: 	        $bubble_lines_per_response{$response_number} = $lines;
                   7493:                 $responsetype_per_response{$response_number} = 
                   7494:                     $analysis->{$part_id.'.type'};
                   7495: 	        $response_number++;
                   7496: 
                   7497: 	        $bubble_line +=  $lines;
                   7498: 	        $total_lines +=  $lines;
                   7499: 	    }
                   7500:         }
                   7501:     }
1.552     raeburn  7502:     &Apache::lonnet::delenv('scantron.');
1.542     raeburn  7503: 
                   7504:     &save_bubble_lines();
                   7505:     $env{'form.scantron_maxbubble'} =
                   7506: 	$total_lines;
                   7507:     return $env{'form.scantron_maxbubble'};
                   7508: }
1.523     raeburn  7509: 
1.649     raeburn  7510: sub bubblesheet_bubbles_per_row {
                   7511:     my ($scantron_config) = @_;
                   7512:     my $bubbles_per_row;
                   7513:     if (ref($scantron_config) eq 'HASH') {
                   7514:         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
                   7515:     }
                   7516:     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
                   7517:         $bubbles_per_row = 10;
                   7518:     }
                   7519:     return $bubbles_per_row;
                   7520: }
                   7521: 
1.157     albertel 7522: sub scantron_validate_missingbubbles {
                   7523:     my ($r,$currentphase) = @_;
                   7524:     #get student info
                   7525:     my $classlist=&Apache::loncoursedata::get_classlist();
                   7526:     my %idmap=&username_to_idmap($classlist);
                   7527: 
                   7528:     #get scantron line setup
1.257     albertel 7529:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.157     albertel 7530:     my ($scanlines,$scan_data)=&scantron_getfile();
1.582     raeburn  7531:     my $nav_error;
1.649     raeburn  7532:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
1.582     raeburn  7533:     if ($nav_error) {
                   7534:         return(1,$currentphase);
                   7535:     }
1.157     albertel 7536:     if (!$max_bubble) { $max_bubble=2**31; }
                   7537:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
1.200     albertel 7538: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
1.157     albertel 7539: 	if ($line=~/^[\s\cz]*$/) { next; }
                   7540: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
                   7541: 						 $scan_data);
                   7542: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
                   7543: 	my @to_correct;
1.470     foxr     7544: 	
                   7545: 	# Probably here's where the error is...
                   7546: 
1.157     albertel 7547: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
1.505     raeburn  7548:             my $lastbubble;
                   7549:             if ($missing =~ /^(\d+)\.(\d+)$/) {
                   7550:                my $question = $1;
                   7551:                my $subquestion = $2;
                   7552:                if (!defined($first_bubble_line{$question -1})) { next; }
                   7553:                my $first = $first_bubble_line{$question-1};
                   7554:                my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
                   7555:                my $subcount = 1;
                   7556:                while ($subcount<$subquestion) {
                   7557:                    $first += $subans[$subcount-1];
                   7558:                    $subcount ++;
                   7559:                }
                   7560:                my $count = $subans[$subquestion-1];
                   7561:                $lastbubble = $first + $count;
                   7562:             } else {
                   7563:                 if (!defined($first_bubble_line{$missing - 1})) { next; }
                   7564:                 $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1};
                   7565:             }
                   7566:             if ($lastbubble > $max_bubble) { next; }
1.157     albertel 7567: 	    push(@to_correct,$missing);
                   7568: 	}
                   7569: 	if (@to_correct) {
                   7570: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
                   7571: 				     $line,'missingbubble',\@to_correct);
                   7572: 	    return (1,$currentphase);
                   7573: 	}
                   7574: 
                   7575:     }
                   7576:     return (0,$currentphase+1);
                   7577: }
                   7578: 
1.423     albertel 7579: 
1.82      albertel 7580: sub scantron_process_students {
1.608     www      7581:     my ($r,$symb) = @_;
1.513     foxr     7582: 
1.257     albertel 7583:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
1.513     foxr     7584:     if (!$symb) {
                   7585: 	return '';
                   7586:     }
1.324     albertel 7587:     my $default_form_data=&defaultFormData($symb);
1.82      albertel 7588: 
1.257     albertel 7589:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
1.649     raeburn  7590:     my $bubbles_per_row =
                   7591:         &bubblesheet_bubbles_per_row(\%scantron_config);
1.157     albertel 7592:     my ($scanlines,$scan_data)=&scantron_getfile();
1.82      albertel 7593:     my $classlist=&Apache::loncoursedata::get_classlist();
                   7594:     my %idmap=&username_to_idmap($classlist);
1.132     bowersj2 7595:     my $navmap=Apache::lonnavmaps::navmap->new();
1.582     raeburn  7596:     unless (ref($navmap)) {
                   7597:         $r->print(&navmap_errormsg());
                   7598:         return '';
                   7599:     }  
1.83      albertel 7600:     my $map=$navmap->getResourceByUrl($sequence);
                   7601:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
1.557     raeburn  7602:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
                   7603:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
1.649     raeburn  7604:                             \%grader_randomlists_by_symb,$bubbles_per_row);
1.586     raeburn  7605:     my $resource_error;
1.557     raeburn  7606:     foreach my $resource (@resources) {
1.586     raeburn  7607:         my $ressymb;
                   7608:         if (ref($resource)) {
                   7609:             $ressymb = $resource->symb();
                   7610:         } else {
                   7611:             $resource_error = 1;
                   7612:             last;
                   7613:         }
1.557     raeburn  7614:         my ($analysis,$parts) =
                   7615:             &scantron_partids_tograde($resource,$env{'request.course.id'},
1.649     raeburn  7616:                                       $env{'user.name'},$env{'user.domain'},1,$bubbles_per_row);
1.557     raeburn  7617:         $grader_partids_by_symb{$ressymb} = $parts;
                   7618:         if (ref($analysis) eq 'HASH') {
                   7619:             if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
                   7620:                 $grader_randomlists_by_symb{$ressymb} = 
                   7621:                     $analysis->{'parts_withrandomlist'};
                   7622:             }
                   7623:         }
                   7624:     }
1.586     raeburn  7625:     if ($resource_error) {
                   7626:         $r->print(&navmap_errormsg());
                   7627:         return '';
                   7628:     }
1.557     raeburn  7629: 
1.554     raeburn  7630:     my ($uname,$udom);
1.82      albertel 7631:     my $result= <<SCANTRONFORM;
1.81      albertel 7632: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
                   7633:   <input type="hidden" name="command" value="scantron_configphase" />
                   7634:   $default_form_data
                   7635: SCANTRONFORM
1.82      albertel 7636:     $r->print($result);
                   7637: 
                   7638:     my @delayqueue;
1.542     raeburn  7639:     my (%completedstudents,%scandata);
1.140     albertel 7640:     
1.520     www      7641:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
1.200     albertel 7642:     my $count=&get_todo_count($scanlines,$scan_data);
1.575     www      7643:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet Status',
                   7644:  				    'Bubblesheet Progress',$count,
1.195     albertel 7645: 				    'inline',undef,'scantronupload');
1.140     albertel 7646:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   7647: 					  'Processing first student');
1.542     raeburn  7648:     $r->print('<br />');
1.140     albertel 7649:     my $start=&Time::HiRes::time();
1.158     albertel 7650:     my $i=-1;
1.542     raeburn  7651:     my $started;
1.447     foxr     7652: 
1.582     raeburn  7653:     my $nav_error;
1.649     raeburn  7654:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
1.582     raeburn  7655:     if ($nav_error) {
                   7656:         $r->print(&navmap_errormsg());
                   7657:         return '';
                   7658:     }
                   7659: 
1.513     foxr     7660:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
                   7661:     # the user and return.
                   7662: 
                   7663:     if ($ssi_error) {
                   7664: 	$r->print("</form>");
                   7665: 	&ssi_print_error($r);
1.520     www      7666:         &Apache::lonnet::remove_lock($lock);
1.513     foxr     7667: 	return '';		# Dunno why the other returns return '' rather than just returning.
                   7668:     }
1.447     foxr     7669: 
1.542     raeburn  7670:     my %lettdig = &letter_to_digits();
                   7671:     my $numletts = scalar(keys(%lettdig));
                   7672: 
1.157     albertel 7673:     while ($i<$scanlines->{'count'}) {
                   7674:  	($uname,$udom)=('','');
                   7675:  	$i++;
1.200     albertel 7676:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
1.157     albertel 7677:  	if ($line=~/^[\s\cz]*$/) { next; }
1.200     albertel 7678: 	if ($started) {
                   7679: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                   7680: 						     'last student');
                   7681: 	}
                   7682: 	$started=1;
1.157     albertel 7683:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
                   7684:  						 $scan_data);
                   7685:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
                   7686:  					      \%idmap,$i)) {
                   7687:   	    &scantron_add_delay(\@delayqueue,$line,
                   7688:  				'Unable to find a student that matches',1);
                   7689:  	    next;
                   7690:   	}
                   7691:  	if (exists $completedstudents{$uname}) {
                   7692:  	    &scantron_add_delay(\@delayqueue,$line,
                   7693:  				'Student '.$uname.' has multiple sheets',2);
                   7694:  	    next;
                   7695:  	}
                   7696:   	($uname,$udom)=split(/:/,$uname);
1.330     albertel 7697: 
1.586     raeburn  7698:         my (%partids_by_symb,$res_error);
1.554     raeburn  7699:         foreach my $resource (@resources) {
1.586     raeburn  7700:             my $ressymb;
                   7701:             if (ref($resource)) {
                   7702:                 $ressymb = $resource->symb();
                   7703:             } else {
                   7704:                 $res_error = 1;
                   7705:                 last;
                   7706:             }
1.557     raeburn  7707:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
                   7708:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
                   7709:                 my ($analysis,$parts) =
1.649     raeburn  7710:                     &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom,undef,$bubbles_per_row);
1.557     raeburn  7711:                 $partids_by_symb{$ressymb} = $parts;
                   7712:             } else {
                   7713:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
                   7714:             }
1.554     raeburn  7715:         }
                   7716: 
1.586     raeburn  7717:         if ($res_error) {
                   7718:             &scantron_add_delay(\@delayqueue,$line,
                   7719:                                 'An error occurred while grading student '.$uname,2);
                   7720:             next;
                   7721:         }
                   7722: 
1.330     albertel 7723: 	&Apache::lonxml::clear_problem_counter();
1.514     raeburn  7724:   	&Apache::lonnet::appenv($scan_record);
1.376     albertel 7725: 
                   7726: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
                   7727: 	    &scantron_putfile($scanlines,$scan_data);
                   7728: 	}
1.161     albertel 7729: 	
1.542     raeburn  7730:         my $scancode;
                   7731:         if ((exists($scan_record->{'scantron.CODE'})) &&
                   7732:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
                   7733:             $scancode = $scan_record->{'scantron.CODE'};
                   7734:         } else {
                   7735:             $scancode = '';
                   7736:         }
                   7737: 
                   7738:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
1.649     raeburn  7739:                                    \@resources,\%partids_by_symb,
                   7740:                                    $bubbles_per_row) eq 'ssi_error') {
1.542     raeburn  7741:             $ssi_error = 0; # So end of handler error message does not trigger.
                   7742:             $r->print("</form>");
                   7743:             &ssi_print_error($r);
                   7744:             &Apache::lonnet::remove_lock($lock);
                   7745:             return '';      # Why return ''?  Beats me.
                   7746:         }
1.513     foxr     7747: 
1.140     albertel 7748: 	$completedstudents{$uname}={'line'=>$line};
1.542     raeburn  7749:         if ($env{'form.verifyrecord'}) {
                   7750:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
                   7751:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
                   7752:             chomp($studentdata);
                   7753:             $studentdata =~ s/\r$//;
                   7754:             my $studentrecord = '';
                   7755:             my $counter = -1;
                   7756:             foreach my $resource (@resources) {
1.554     raeburn  7757:                 my $ressymb = $resource->symb();
1.542     raeburn  7758:                 ($counter,my $recording) =
                   7759:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
1.554     raeburn  7760:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
1.542     raeburn  7761:                                              \%scantron_config,\%lettdig,$numletts);
                   7762:                 $studentrecord .= $recording;
                   7763:             }
                   7764:             if ($studentrecord ne $studentdata) {
1.554     raeburn  7765:                 &Apache::lonxml::clear_problem_counter();
                   7766:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
1.649     raeburn  7767:                                            \@resources,\%partids_by_symb,
                   7768:                                            $bubbles_per_row) eq 'ssi_error') {
1.554     raeburn  7769:                     $ssi_error = 0; # So end of handler error message does not trigger.
                   7770:                     $r->print("</form>");
                   7771:                     &ssi_print_error($r);
                   7772:                     &Apache::lonnet::remove_lock($lock);
                   7773:                     delete($completedstudents{$uname});
                   7774:                     return '';
                   7775:                 }
1.542     raeburn  7776:                 $counter = -1;
                   7777:                 $studentrecord = '';
                   7778:                 foreach my $resource (@resources) {
1.554     raeburn  7779:                     my $ressymb = $resource->symb();
1.542     raeburn  7780:                     ($counter,my $recording) =
                   7781:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
1.554     raeburn  7782:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
1.542     raeburn  7783:                                                  \%scantron_config,\%lettdig,$numletts);
                   7784:                     $studentrecord .= $recording;
                   7785:                 }
                   7786:                 if ($studentrecord ne $studentdata) {
                   7787:                     $r->print('<p><span class="LC_error">');
                   7788:                     if ($scancode eq '') {
                   7789:                         $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2].',
                   7790:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
                   7791:                     } else {
                   7792:                         $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2] and CODE: [_3].',
                   7793:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
                   7794:                     }
                   7795:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
                   7796:                               &Apache::loncommon::start_data_table_header_row()."\n".
                   7797:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
                   7798:                               &Apache::loncommon::end_data_table_header_row()."\n".
                   7799:                               &Apache::loncommon::start_data_table_row().
                   7800:                               '<td>'.&mt('Bubble Sheet').'</td>'.
                   7801:                               '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
                   7802:                               &Apache::loncommon::end_data_table_row().
                   7803:                               &Apache::loncommon::start_data_table_row().
                   7804:                               '<td>Stored submissions</td>'.
                   7805:                               '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
                   7806:                               &Apache::loncommon::end_data_table_row().
                   7807:                               &Apache::loncommon::end_data_table().'</p>');
                   7808:                 } else {
                   7809:                     $r->print('<br /><span class="LC_warning">'.
                   7810:                              &mt('A second grading pass was needed for user: [_1] with ID: [_2], because a mismatch was seen on the first pass.',$uname.':'.$udom,$scan_record->{'scantron.ID'}).'<br />'.
                   7811:                              &mt("As a consequence, this user's submission history records two tries.").
                   7812:                                  '</span><br />');
                   7813:                 }
                   7814:             }
                   7815:         }
1.543     raeburn  7816:         if (&Apache::loncommon::connection_aborted($r)) { last; }
1.140     albertel 7817:     } continue {
1.330     albertel 7818: 	&Apache::lonxml::clear_problem_counter();
1.552     raeburn  7819: 	&Apache::lonnet::delenv('scantron.');
1.82      albertel 7820:     }
1.140     albertel 7821:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
1.520     www      7822:     &Apache::lonnet::remove_lock($lock);
1.172     albertel 7823: #    my $lasttime = &Time::HiRes::time()-$start;
                   7824: #    $r->print("<p>took $lasttime</p>");
1.140     albertel 7825: 
1.200     albertel 7826:     $r->print("</form>");
1.157     albertel 7827:     return '';
1.75      albertel 7828: }
1.157     albertel 7829: 
1.557     raeburn  7830: sub graders_resources_pass {
1.649     raeburn  7831:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
                   7832:         $bubbles_per_row) = @_;
1.557     raeburn  7833:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
                   7834:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
                   7835:         foreach my $resource (@{$resources}) {
                   7836:             my $ressymb = $resource->symb();
                   7837:             my ($analysis,$parts) =
                   7838:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
1.649     raeburn  7839:                                           $env{'user.name'},$env{'user.domain'},1,$bubbles_per_row);
1.557     raeburn  7840:             $grader_partids_by_symb->{$ressymb} = $parts;
                   7841:             if (ref($analysis) eq 'HASH') {
                   7842:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
                   7843:                     $grader_randomlists_by_symb->{$ressymb} =
                   7844:                         $analysis->{'parts_withrandomlist'};
                   7845:                 }
                   7846:             }
                   7847:         }
                   7848:     }
                   7849:     return;
                   7850: }
                   7851: 
1.542     raeburn  7852: sub grade_student_bubbles {
1.649     raeburn  7853:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row) = @_;
                   7854: # Walk folder as student here to get resources in order student sees.
1.554     raeburn  7855:     if (ref($resources) eq 'ARRAY') {
                   7856:         my $count = 0;
                   7857:         foreach my $resource (@{$resources}) {
                   7858:             my $ressymb = $resource->symb();
                   7859:             my %form = ('submitted'      => 'scantron',
                   7860:                         'grade_target'   => 'grade',
                   7861:                         'grade_username' => $uname,
                   7862:                         'grade_domain'   => $udom,
                   7863:                         'grade_courseid' => $env{'request.course.id'},
                   7864:                         'grade_symb'     => $ressymb,
                   7865:                         'CODE'           => $scancode
                   7866:                        );
1.649     raeburn  7867:             if ($bubbles_per_row ne '') {
                   7868:                 $form{'bubbles_per_row'} = $bubbles_per_row;
                   7869:             }
1.554     raeburn  7870:             if (ref($parts) eq 'HASH') {
                   7871:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
                   7872:                     foreach my $part (@{$parts->{$ressymb}}) {
                   7873:                         $form{'scantron_questnum_start.'.$part} =
                   7874:                             1+$env{'form.scantron.first_bubble_line.'.$count};
                   7875:                         $count++;
                   7876:                     }
                   7877:                 }
                   7878:             }
                   7879:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
                   7880:             return 'ssi_error' if ($ssi_error);
                   7881:             last if (&Apache::loncommon::connection_aborted($r));
                   7882:         }
1.542     raeburn  7883:     }
                   7884:     return;
                   7885: }
                   7886: 
1.157     albertel 7887: sub scantron_upload_scantron_data {
1.608     www      7888:     my ($r,$symb)=@_;
1.565     raeburn  7889:     my $dom = $env{'request.role.domain'};
                   7890:     my $domdesc = &Apache::lonnet::domain($dom,'description');
                   7891:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
1.157     albertel 7892:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
1.181     albertel 7893: 							  'domainid',
1.565     raeburn  7894: 							  'coursename',$dom);
                   7895:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
                   7896:                        ('&nbsp'x2).&mt('(shows course personnel)'); 
1.608     www      7897:     my $default_form_data=&defaultFormData($symb);
1.579     raeburn  7898:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
                   7899:     my $nocourseid_alert = &mt("Please use the 'Select Course' link to open a separate window where you can search for a course to which a file can be uploaded.");
1.597     wenzelju 7900:     $r->print(&Apache::lonhtmlcommon::scripttag('
1.157     albertel 7901:     function checkUpload(formname) {
                   7902: 	if (formname.upfile.value == "") {
1.579     raeburn  7903: 	    alert("'.$nofile_alert.'");
1.157     albertel 7904: 	    return false;
                   7905: 	}
1.565     raeburn  7906:         if (formname.courseid.value == "") {
1.579     raeburn  7907:             alert("'.$nocourseid_alert.'");
1.565     raeburn  7908:             return false;
                   7909:         }
1.157     albertel 7910: 	formname.submit();
                   7911:     }
1.565     raeburn  7912: 
                   7913:     function ToSyllabus() {
                   7914:         var cdom = '."'$dom'".';
                   7915:         var cnum = document.rules.courseid.value;
                   7916:         if (cdom == "" || cdom == null) {
                   7917:             return;
                   7918:         }
                   7919:         if (cnum == "" || cnum == null) {
                   7920:            return;
                   7921:         }
                   7922:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
                   7923:                             "height=350,width=350,scrollbars=yes,menubar=no");
                   7924:         return;
                   7925:     }
                   7926: 
1.597     wenzelju 7927: '));
                   7928:     $r->print('
1.648     bisitz   7929: <h3>'.&mt('Send bubblesheet data to a course').'</h3>
1.566     raeburn  7930: 
1.492     albertel 7931: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
1.565     raeburn  7932: '.$default_form_data.
                   7933:   &Apache::lonhtmlcommon::start_pick_box().
                   7934:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
                   7935:   '<input name="courseid" type="text" size="30" />'.$select_link.
                   7936:   &Apache::lonhtmlcommon::row_closure().
                   7937:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
                   7938:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
                   7939:   &Apache::lonhtmlcommon::row_closure().
                   7940:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
                   7941:   '<input name="domainid" type="hidden" />'.$domdesc.
                   7942:   &Apache::lonhtmlcommon::row_closure().
                   7943:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
                   7944:   '<input type="file" name="upfile" size="50" />'.
                   7945:   &Apache::lonhtmlcommon::row_closure(1).
                   7946:   &Apache::lonhtmlcommon::end_pick_box().'<br />
                   7947: 
1.492     albertel 7948: <input name="command" value="scantronupload_save" type="hidden" />
1.589     bisitz   7949: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
1.157     albertel 7950: </form>
1.492     albertel 7951: ');
1.157     albertel 7952:     return '';
                   7953: }
                   7954: 
1.423     albertel 7955: 
1.157     albertel 7956: sub scantron_upload_scantron_data_save {
1.608     www      7957:     my($r,$symb)=@_;
1.182     albertel 7958:     my $doanotherupload=
                   7959: 	'<br /><form action="/adm/grades" method="post">'."\n".
                   7960: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
1.492     albertel 7961: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
1.182     albertel 7962: 	'</form>'."\n";
1.257     albertel 7963:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
1.162     albertel 7964: 	!&Apache::lonnet::allowed('usc',
1.257     albertel 7965: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
1.575     www      7966: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
1.614     www      7967: 	unless ($symb) {
1.182     albertel 7968: 	    $r->print($doanotherupload);
                   7969: 	}
1.162     albertel 7970: 	return '';
                   7971:     }
1.257     albertel 7972:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
1.568     raeburn  7973:     my $uploadedfile;
1.567     raeburn  7974:     $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
1.257     albertel 7975:     if (length($env{'form.upfile'}) < 2) {
1.568     raeburn  7976:         $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','<span class="LC_error">','</span>','<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
1.183     albertel 7977:     } else {
1.568     raeburn  7978:         my $result = 
                   7979:             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
                   7980:                                             $env{'form.courseid'},$env{'form.domainid'});
                   7981: 	if ($result =~ m{^/uploaded/}) {
1.567     raeburn  7982: 	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
                   7983:                           '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
                   7984: 			  '<span class="LC_filename">'.$result.'</span>'));
1.568     raeburn  7985:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
1.567     raeburn  7986:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
1.568     raeburn  7987:                                                        $env{'form.courseid'},$uploadedfile));
1.210     albertel 7988: 	} else {
1.567     raeburn  7989: 	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
                   7990:                           '<span class="LC_error">','</span>',$result,
1.568     raeburn  7991: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
1.183     albertel 7992: 	}
                   7993:     }
1.174     albertel 7994:     if ($symb) {
1.612     www      7995: 	$r->print(&scantron_selectphase($r,$uploadedfile,$symb));
1.174     albertel 7996:     } else {
1.182     albertel 7997: 	$r->print($doanotherupload);
1.174     albertel 7998:     }
1.157     albertel 7999:     return '';
                   8000: }
                   8001: 
1.567     raeburn  8002: sub validate_uploaded_scantron_file {
                   8003:     my ($cdom,$cname,$fname) = @_;
                   8004:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
                   8005:     my @lines;
                   8006:     if ($scanlines ne '-1') {
                   8007:         @lines=split("\n",$scanlines,-1);
                   8008:     }
                   8009:     my $output;
                   8010:     if (@lines) {
                   8011:         my (%counts,$max_match_format);
                   8012:         my ($max_match_count,$max_match_pct) = (0,0);
                   8013:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
                   8014:         my %idmap = &username_to_idmap($classlist);
                   8015:         foreach my $key (keys(%idmap)) {
                   8016:             my $lckey = lc($key);
                   8017:             $idmap{$lckey} = $idmap{$key};
                   8018:         }
                   8019:         my %unique_formats;
                   8020:         my @formatlines = &get_scantronformat_file();
                   8021:         foreach my $line (@formatlines) {
                   8022:             chomp($line);
                   8023:             my @config = split(/:/,$line);
                   8024:             my $idstart = $config[5];
                   8025:             my $idlength = $config[6];
                   8026:             if (($idstart ne '') && ($idlength > 0)) {
                   8027:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
                   8028:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
                   8029:                 } else {
                   8030:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
                   8031:                 }
                   8032:             }
                   8033:         }
                   8034:         foreach my $key (keys(%unique_formats)) {
                   8035:             my ($idstart,$idlength) = split(':',$key);
                   8036:             %{$counts{$key}} = (
                   8037:                                'found'   => 0,
                   8038:                                'total'   => 0,
                   8039:                               );
                   8040:             foreach my $line (@lines) {
                   8041:                 next if ($line =~ /^#/);
                   8042:                 next if ($line =~ /^[\s\cz]*$/);
                   8043:                 my $id = substr($line,$idstart-1,$idlength);
                   8044:                 $id = lc($id);
                   8045:                 if (exists($idmap{$id})) {
                   8046:                     $counts{$key}{'found'} ++;
                   8047:                 }
                   8048:                 $counts{$key}{'total'} ++;
                   8049:             }
                   8050:             if ($counts{$key}{'total'}) {
                   8051:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
                   8052:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
                   8053:                     $max_match_pct = $percent_match;
                   8054:                     $max_match_format = $key;
                   8055:                     $max_match_count = $counts{$key}{'total'};
                   8056:                 }
                   8057:             }
                   8058:         }
                   8059:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
                   8060:             my $format_descs;
                   8061:             my $numwithformat = @{$unique_formats{$max_match_format}};
                   8062:             for (my $i=0; $i<$numwithformat; $i++) {
                   8063:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
                   8064:                 if ($i<$numwithformat-2) {
                   8065:                     $format_descs .= '"<i>'.$desc.'</i>", ';
                   8066:                 } elsif ($i==$numwithformat-2) {
                   8067:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
                   8068:                 } elsif ($i==$numwithformat-1) {
                   8069:                     $format_descs .= '"<i>'.$desc.'</i>"';
                   8070:                 }
                   8071:             }
                   8072:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
                   8073:             $output .= '<br />'.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).','<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
                   8074:                        '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
                   8075:                        '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
                   8076:                        '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
                   8077:                                   '<i>'.$cdom.'</i>').'</li>'.
                   8078:                        '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
                   8079:                        '<li>'.&mt('The course roster is not up to date').'</li>'.
                   8080:                        '</ul>';
                   8081:         }
                   8082:     } else {
                   8083:         $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
                   8084:     }
                   8085:     return $output;
                   8086: }
                   8087: 
1.202     albertel 8088: sub valid_file {
                   8089:     my ($requested_file)=@_;
                   8090:     foreach my $filename (sort(&scantron_filenames())) {
                   8091: 	if ($requested_file eq $filename) { return 1; }
                   8092:     }
                   8093:     return 0;
                   8094: }
                   8095: 
                   8096: sub scantron_download_scantron_data {
1.608     www      8097:     my ($r,$symb)=@_;
                   8098:     my $default_form_data=&defaultFormData($symb);
1.257     albertel 8099:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
                   8100:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
                   8101:     my $file=$env{'form.scantron_selectfile'};
1.202     albertel 8102:     if (! &valid_file($file)) {
1.492     albertel 8103: 	$r->print('
1.202     albertel 8104: 	<p>
1.492     albertel 8105: 	    '.&mt('The requested file name was invalid.').'
1.202     albertel 8106:         </p>
1.492     albertel 8107: ');
1.202     albertel 8108: 	return;
                   8109:     }
                   8110:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
                   8111:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
                   8112:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
                   8113:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
                   8114:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
                   8115:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
1.492     albertel 8116:     $r->print('
1.202     albertel 8117:     <p>
1.492     albertel 8118: 	'.&mt('[_1]Original[_2] file as uploaded by the scantron office.',
                   8119: 	      '<a href="'.$orig.'">','</a>').'
1.202     albertel 8120:     </p>
                   8121:     <p>
1.492     albertel 8122: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
                   8123: 	      '<a href="'.$corrected.'">','</a>').'
1.202     albertel 8124:     </p>
                   8125:     <p>
1.492     albertel 8126: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
                   8127: 	      '<a href="'.$skipped.'">','</a>').'
1.202     albertel 8128:     </p>
1.492     albertel 8129: ');
1.202     albertel 8130:     return '';
                   8131: }
1.157     albertel 8132: 
1.523     raeburn  8133: sub checkscantron_results {
1.608     www      8134:     my ($r,$symb) = @_;
1.523     raeburn  8135:     if (!$symb) {return '';}
                   8136:     my $cid = $env{'request.course.id'};
1.542     raeburn  8137:     my %lettdig = &letter_to_digits();
1.523     raeburn  8138:     my $numletts = scalar(keys(%lettdig));
                   8139:     my $cnum = $env{'course.'.$cid.'.num'};
                   8140:     my $cdom = $env{'course.'.$cid.'.domain'};
                   8141:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
                   8142:     my %record;
                   8143:     my %scantron_config =
                   8144:         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
1.649     raeburn  8145:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
1.523     raeburn  8146:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
                   8147:     my $classlist=&Apache::loncoursedata::get_classlist();
                   8148:     my %idmap=&Apache::grades::username_to_idmap($classlist);
                   8149:     my $navmap=Apache::lonnavmaps::navmap->new();
1.582     raeburn  8150:     unless (ref($navmap)) {
                   8151:         $r->print(&navmap_errormsg());
                   8152:         return '';
                   8153:     }
1.523     raeburn  8154:     my $map=$navmap->getResourceByUrl($sequence);
1.557     raeburn  8155:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
                   8156:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
                   8157:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,                             \%grader_randomlists_by_symb);
                   8158: 
1.554     raeburn  8159:     my ($uname,$udom);
1.523     raeburn  8160:     my (%scandata,%lastname,%bylast);
                   8161:     $r->print('
                   8162: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
                   8163: 
                   8164:     my @delayqueue;
                   8165:     my %completedstudents;
                   8166: 
                   8167:     my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
1.581     www      8168:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet/Submissions Comparison Status',
                   8169:                                     'Progress of Bubblesheet Data/Submission Records Comparison',$count,
1.523     raeburn  8170:                                     'inline',undef,'checkscantron');
1.546     raeburn  8171:     my ($username,$domain,$started);
1.582     raeburn  8172:     my $nav_error;
1.649     raeburn  8173:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
1.582     raeburn  8174:     if ($nav_error) {
                   8175:         $r->print(&navmap_errormsg());
                   8176:         return '';
                   8177:     }
1.523     raeburn  8178: 
                   8179:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
                   8180:                                           'Processing first student');
                   8181:     my $start=&Time::HiRes::time();
                   8182:     my $i=-1;
                   8183: 
                   8184:     while ($i<$scanlines->{'count'}) {
                   8185:         ($username,$domain,$uname)=('','','');
                   8186:         $i++;
                   8187:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
                   8188:         if ($line=~/^[\s\cz]*$/) { next; }
                   8189:         if ($started) {
                   8190:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                   8191:                                                      'last student');
                   8192:         }
                   8193:         $started=1;
                   8194:         my $scan_record=
                   8195:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
                   8196:                                                      $scan_data);
                   8197:         unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data,
                   8198:                                                               \%idmap,$i)) {
                   8199:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
                   8200:                                 'Unable to find a student that matches',1);
                   8201:             next;
                   8202:         }
                   8203:         if (exists $completedstudents{$uname}) {
                   8204:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
                   8205:                                 'Student '.$uname.' has multiple sheets',2);
                   8206:             next;
                   8207:         }
                   8208:         my $pid = $scan_record->{'scantron.ID'};
                   8209:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
                   8210:         push(@{$bylast{$lastname{$pid}}},$pid);
                   8211:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
                   8212:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
                   8213:         chomp($scandata{$pid});
                   8214:         $scandata{$pid} =~ s/\r$//;
                   8215:         ($username,$domain)=split(/:/,$uname);
                   8216:         my $counter = -1;
                   8217:         foreach my $resource (@resources) {
1.557     raeburn  8218:             my $parts;
1.554     raeburn  8219:             my $ressymb = $resource->symb();
1.557     raeburn  8220:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
                   8221:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
                   8222:                 (my $analysis,$parts) =
1.649     raeburn  8223:                     &scantron_partids_tograde($resource,$env{'request.course.id'},$username,$domain,undef,$bubbles_per_row);
1.557     raeburn  8224:             } else {
                   8225:                 $parts = $grader_partids_by_symb{$ressymb};
                   8226:             }
1.542     raeburn  8227:             ($counter,my $recording) =
                   8228:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
1.554     raeburn  8229:                                          $scandata{$pid},$parts,
1.542     raeburn  8230:                                          \%scantron_config,\%lettdig,$numletts);
                   8231:             $record{$pid} .= $recording;
1.523     raeburn  8232:         }
                   8233:     }
                   8234:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
                   8235:     $r->print('<br />');
                   8236:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
                   8237:     $passed = 0;
                   8238:     $failed = 0;
                   8239:     $numstudents = 0;
                   8240:     foreach my $last (sort(keys(%bylast))) {
                   8241:         if (ref($bylast{$last}) eq 'ARRAY') {
                   8242:             foreach my $pid (sort(@{$bylast{$last}})) {
                   8243:                 my $showscandata = $scandata{$pid};
                   8244:                 my $showrecord = $record{$pid};
                   8245:                 $showscandata =~ s/\s/&nbsp;/g;
                   8246:                 $showrecord =~ s/\s/&nbsp;/g;
                   8247:                 if ($scandata{$pid} eq $record{$pid}) {
                   8248:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
                   8249:                     $okstudents .= '<tr class="'.$css_class.'">'.
1.581     www      8250: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
1.523     raeburn  8251: '</tr>'."\n".
                   8252: '<tr class="'.$css_class.'">'."\n".
                   8253: '<td>Submissions</td><td>'.$showrecord.'</td></tr>'."\n";
                   8254:                     $passed ++;
                   8255:                 } else {
                   8256:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
1.581     www      8257:                     $badstudents .= '<tr class="'.$css_class.'"><td>'.&mt('Bubblesheet').'</td><td><span class="LC_nobreak">'.$scandata{$pid}.'</span></td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
1.523     raeburn  8258: '</tr>'."\n".
                   8259: '<tr class="'.$css_class.'">'."\n".
                   8260: '<td>Submissions</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
                   8261: '</tr>'."\n";
                   8262:                     $failed ++;
                   8263:                 }
                   8264:                 $numstudents ++;
                   8265:             }
                   8266:         }
                   8267:     }
1.648     bisitz   8268:     $r->print(
                   8269:         '<p>'
                   8270:        .&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for [_1][quant,_2,student][_3] ([quant,_4,bubblesheet line] per student).',
                   8271:             '<b>',
                   8272:             $numstudents,
                   8273:             '</b>',
                   8274:             $env{'form.scantron_maxbubble'})
                   8275:        .'</p>'
                   8276:     );
1.523     raeburn  8277:     $r->print('<p>'.&mt('Exact matches for <b>[quant,_1,student]</b>.',$passed).'<br />'.&mt('Discrepancies detected for <b>[quant,_1,student]</b>.',$failed).'</p>');
                   8278:     if ($passed) {
1.572     www      8279:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
1.523     raeburn  8280:         $r->print(&Apache::loncommon::start_data_table()."\n".
                   8281:                  &Apache::loncommon::start_data_table_header_row()."\n".
                   8282:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
                   8283:                  &Apache::loncommon::end_data_table_header_row()."\n".
                   8284:                  $okstudents."\n".
                   8285:                  &Apache::loncommon::end_data_table().'<br />');
                   8286:     }
                   8287:     if ($failed) {
1.572     www      8288:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
1.523     raeburn  8289:         $r->print(&Apache::loncommon::start_data_table()."\n".
                   8290:                  &Apache::loncommon::start_data_table_header_row()."\n".
                   8291:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
                   8292:                  &Apache::loncommon::end_data_table_header_row()."\n".
                   8293:                  $badstudents."\n".
                   8294:                  &Apache::loncommon::end_data_table()).'<br />'.
1.572     www      8295:                  &mt('Differences can occur if submissions were modified using manual grading after a bubblesheet grading pass.').'<br />'.&mt('If unexpected discrepancies were detected, it is recommended that you inspect the original bubblesheets.');  
1.523     raeburn  8296:     }
1.614     www      8297:     $r->print('</form><br />');
1.523     raeburn  8298:     return;
                   8299: }
                   8300: 
1.542     raeburn  8301: sub verify_scantron_grading {
1.554     raeburn  8302:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
1.542     raeburn  8303:         $scantron_config,$lettdig,$numletts) = @_;
                   8304:     my ($record,%expected,%startpos);
                   8305:     return ($counter,$record) if (!ref($resource));
                   8306:     return ($counter,$record) if (!$resource->is_problem());
                   8307:     my $symb = $resource->symb();
1.554     raeburn  8308:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
                   8309:     foreach my $part_id (@{$partids}) {
1.542     raeburn  8310:         $counter ++;
                   8311:         $expected{$part_id} = 0;
                   8312:         if ($env{"form.scantron.sub_bubblelines.$counter"}) {
                   8313:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"});
                   8314:             foreach my $item (@sub_lines) {
                   8315:                 $expected{$part_id} += $item;
                   8316:             }
                   8317:         } else {
                   8318:             $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"};
                   8319:         }
                   8320:         $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
                   8321:     }
                   8322:     if ($symb) {
                   8323:         my %recorded;
                   8324:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
                   8325:         if ($returnhash{'version'}) {
                   8326:             my %lasthash=();
                   8327:             my $version;
                   8328:             for ($version=1;$version<=$returnhash{'version'};$version++) {
                   8329:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
                   8330:                     $lasthash{$key}=$returnhash{$version.':'.$key};
                   8331:                 }
                   8332:             }
                   8333:             foreach my $key (keys(%lasthash)) {
                   8334:                 if ($key =~ /\.scantron$/) {
                   8335:                     my $value = &unescape($lasthash{$key});
                   8336:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
                   8337:                     if ($value eq '') {
                   8338:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
                   8339:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
                   8340:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
                   8341:                             }
                   8342:                         }
                   8343:                     } else {
                   8344:                         my @tocheck;
                   8345:                         my @items = split(//,$value);
                   8346:                         if (($scantron_config->{'Qon'} eq 'letter') ||
                   8347:                             ($scantron_config->{'Qon'} eq 'number')) {
                   8348:                             if (@items < $expected{$part_id}) {
                   8349:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
                   8350:                                 my @singles = split(//,$fragment);
                   8351:                                 foreach my $pos (@singles) {
                   8352:                                     if ($pos eq ' ') {
                   8353:                                         push(@tocheck,$pos);
                   8354:                                     } else {
                   8355:                                         my $next = shift(@items);
                   8356:                                         push(@tocheck,$next);
                   8357:                                     }
                   8358:                                 }
                   8359:                             } else {
                   8360:                                 @tocheck = @items;
                   8361:                             }
                   8362:                             foreach my $letter (@tocheck) {
                   8363:                                 if ($scantron_config->{'Qon'} eq 'letter') {
                   8364:                                     if ($letter !~ /^[A-J]$/) {
                   8365:                                         $letter = $scantron_config->{'Qoff'};
                   8366:                                     }
                   8367:                                     $recorded{$part_id} .= $letter;
                   8368:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
                   8369:                                     my $digit;
                   8370:                                     if ($letter !~ /^[A-J]$/) {
                   8371:                                         $digit = $scantron_config->{'Qoff'};
                   8372:                                     } else {
                   8373:                                         $digit = $lettdig->{$letter};
                   8374:                                     }
                   8375:                                     $recorded{$part_id} .= $digit;
                   8376:                                 }
                   8377:                             }
                   8378:                         } else {
                   8379:                             @tocheck = @items;
                   8380:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
                   8381:                                 my $curr_sub = shift(@tocheck);
                   8382:                                 my $digit;
                   8383:                                 if ($curr_sub =~ /^[A-J]$/) {
                   8384:                                     $digit = $lettdig->{$curr_sub}-1;
                   8385:                                 }
                   8386:                                 if ($curr_sub eq 'J') {
                   8387:                                     $digit += scalar($numletts);
                   8388:                                 }
                   8389:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
                   8390:                                     if ($j == $digit) {
                   8391:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
                   8392:                                     } else {
                   8393:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
                   8394:                                     }
                   8395:                                 }
                   8396:                             }
                   8397:                         }
                   8398:                     }
                   8399:                 }
                   8400:             }
                   8401:         }
1.554     raeburn  8402:         foreach my $part_id (@{$partids}) {
1.542     raeburn  8403:             if ($recorded{$part_id} eq '') {
                   8404:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
                   8405:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
                   8406:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
                   8407:                     }
                   8408:                 }
                   8409:             }
                   8410:             $record .= $recorded{$part_id};
                   8411:         }
                   8412:     }
                   8413:     return ($counter,$record);
                   8414: }
                   8415: 
                   8416: sub letter_to_digits { 
                   8417:     my %lettdig = (
                   8418:                     A => 1,
                   8419:                     B => 2,
                   8420:                     C => 3,
                   8421:                     D => 4,
                   8422:                     E => 5,
                   8423:                     F => 6,
                   8424:                     G => 7,
                   8425:                     H => 8,
                   8426:                     I => 9,
                   8427:                     J => 0,
                   8428:                   );
                   8429:     return %lettdig;
                   8430: }
                   8431: 
1.423     albertel 8432: 
1.75      albertel 8433: #-------- end of section for handling grading scantron forms -------
                   8434: #
                   8435: #-------------------------------------------------------------------
                   8436: 
1.72      ng       8437: #-------------------------- Menu interface -------------------------
                   8438: #
1.614     www      8439: #--- Href with symb and command ---
                   8440: 
                   8441: sub href_symb_cmd {
                   8442:     my ($symb,$cmd)=@_;
                   8443:     return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&command='.$cmd;
1.72      ng       8444: }
                   8445: 
1.443     banghart 8446: sub grading_menu {
1.608     www      8447:     my ($request,$symb) = @_;
1.443     banghart 8448:     if (!$symb) {return '';}
                   8449: 
                   8450:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
1.618     www      8451:                   'command'=>'individual');
1.538     schulted 8452:     
1.598     www      8453:     my $url1a = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8454: 
                   8455:     $fields{'command'}='ungraded';
                   8456:     my $url1b=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8457: 
                   8458:     $fields{'command'}='table';
                   8459:     my $url1c=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8460: 
                   8461:     $fields{'command'}='all_for_one';
                   8462:     my $url1d=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8463: 
1.621     www      8464:     $fields{'command'}='downloadfilesselect';
                   8465:     my $url1e=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8466: 
1.443     banghart 8467:     $fields{'command'} = 'csvform';
1.538     schulted 8468:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8469:     
1.443     banghart 8470:     $fields{'command'} = 'processclicker';
1.538     schulted 8471:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
                   8472:     
1.443     banghart 8473:     $fields{'command'} = 'scantron_selectphase';
1.538     schulted 8474:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
1.602     www      8475: 
                   8476:     $fields{'command'} = 'initialverifyreceipt';
                   8477:     my $url5 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
1.538     schulted 8478:     
1.598     www      8479:     my @menu = ({	categorytitle=>'Hand Grading',
1.538     schulted 8480:             items =>[
1.598     www      8481:                         {	linktext => 'Select individual students to grade',
                   8482:                     		url => $url1a,
1.538     schulted 8483:                     		permission => 'F',
1.636     wenzelju 8484:                     		icon => 'grade_students.png',
1.598     www      8485:                     		linktitle => 'Grade current resource for a selection of students.'
                   8486:                         }, 
                   8487:                         {       linktext => 'Grade ungraded submissions.',
                   8488:                                 url => $url1b,
                   8489:                                 permission => 'F',
1.636     wenzelju 8490:                                 icon => 'ungrade_sub.png',
1.598     www      8491:                                 linktitle => 'Grade all submissions that have not been graded yet.'
1.538     schulted 8492:                         },
1.598     www      8493: 
                   8494:                         {       linktext => 'Grading table',
                   8495:                                 url => $url1c,
                   8496:                                 permission => 'F',
1.636     wenzelju 8497:                                 icon => 'grading_table.png',
1.598     www      8498:                                 linktitle => 'Grade current resource for all students.'
                   8499:                         },
1.615     www      8500:                         {       linktext => 'Grade page/folder for one student',
1.598     www      8501:                                 url => $url1d,
                   8502:                                 permission => 'F',
1.636     wenzelju 8503:                                 icon => 'grade_PageFolder.png',
1.598     www      8504:                                 linktitle => 'Grade all resources in current page/sequence/folder for one student.'
1.621     www      8505:                         },
                   8506:                         {       linktext => 'Download submissions',
                   8507:                                 url => $url1e,
                   8508:                                 permission => 'F',
1.636     wenzelju 8509:                                 icon => 'download_sub.png',
1.621     www      8510:                                 linktitle => 'Download all students submissions.'
1.598     www      8511:                         }]},
                   8512:                          { categorytitle=>'Automated Grading',
                   8513:                items =>[
                   8514: 
1.538     schulted 8515:                 	    {	linktext => 'Upload Scores',
                   8516:                     		url => $url2,
                   8517:                     		permission => 'F',
                   8518:                     		icon => 'uploadscores.png',
                   8519:                     		linktitle => 'Specify a file containing the class scores for current resource.'
                   8520:                 	    },
                   8521:                 	    {	linktext => 'Process Clicker',
                   8522:                     		url => $url3,
                   8523:                     		permission => 'F',
                   8524:                     		icon => 'addClickerInfoFile.png',
                   8525:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
                   8526:                 	    },
1.587     raeburn  8527:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
1.538     schulted 8528:                     		url => $url4,
                   8529:                     		permission => 'F',
1.636     wenzelju 8530:                     		icon => 'bubblesheet.png',
1.648     bisitz   8531:                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
1.602     www      8532:                 	    },
1.616     www      8533:                             {   linktext => 'Verify Receipt Number',
1.602     www      8534:                                 url => $url5,
                   8535:                                 permission => 'F',
1.636     wenzelju 8536:                                 icon => 'receipt_number.png',
1.602     www      8537:                                 linktitle => 'Verify a system-generated receipt number for correct problem solution.'
                   8538:                             }
                   8539: 
1.538     schulted 8540:                     ]
                   8541:             });
                   8542: 
1.443     banghart 8543:     # Create the menu
                   8544:     my $Str;
1.445     banghart 8545:     $Str .= '<form method="post" action="" name="gradingMenu">';
                   8546:     $Str .= '<input type="hidden" name="command" value="" />'.
1.618     www      8547:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
1.445     banghart 8548: 
1.602     www      8549:     $Str .= &Apache::lonhtmlcommon::generate_menu(@menu);
1.443     banghart 8550:     return $Str;    
                   8551: }
                   8552: 
1.598     www      8553: 
                   8554: sub ungraded {
                   8555:     my ($request)=@_;
                   8556:     &submit_options($request);
                   8557: }
                   8558: 
1.599     www      8559: sub submit_options_sequence {
1.608     www      8560:     my ($request,$symb) = @_;
1.599     www      8561:     if (!$symb) {return '';}
1.600     www      8562:     &commonJSfunctions($request);
                   8563:     my $result;
1.599     www      8564: 
1.600     www      8565:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
1.618     www      8566:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
1.632     www      8567:     $result.=&selectfield(0).
1.601     www      8568:             '<input type="hidden" name="command" value="pickStudentPage" />
1.600     www      8569:             <div>
                   8570:               <input type="submit" value="'.&mt('Next').' &rarr;" />
                   8571:             </div>
                   8572:         </div>
                   8573:   </form>';
                   8574:     return $result;
                   8575: }
                   8576: 
                   8577: sub submit_options_table {
1.608     www      8578:     my ($request,$symb) = @_;
1.600     www      8579:     if (!$symb) {return '';}
1.599     www      8580:     &commonJSfunctions($request);
                   8581:     my $result;
                   8582: 
                   8583:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
1.618     www      8584:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
1.599     www      8585: 
1.632     www      8586:     $result.=&selectfield(0).
1.601     www      8587:             '<input type="hidden" name="command" value="viewgrades" />
1.599     www      8588:             <div>
                   8589:               <input type="submit" value="'.&mt('Next').' &rarr;" />
                   8590:             </div>
                   8591:         </div>
                   8592:   </form>';
                   8593:     return $result;
                   8594: }
1.443     banghart 8595: 
1.621     www      8596: sub submit_options_download {
                   8597:     my ($request,$symb) = @_;
                   8598:     if (!$symb) {return '';}
                   8599: 
                   8600:     &commonJSfunctions($request);
                   8601: 
                   8602:     my $result='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
                   8603:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
                   8604:     $result.='
                   8605: <h2>
                   8606:   '.&mt('Select Students for Which to Download Submissions').'
                   8607: </h2>'.&selectfield(1).'
                   8608:                 <input type="hidden" name="command" value="downloadfileslink" /> 
                   8609:               <input type="submit" value="'.&mt('Next').' &rarr;" />
                   8610:             </div>
                   8611:           </div>
1.600     www      8612: 
                   8613: 
1.621     www      8614:   </form>';
                   8615:     return $result;
                   8616: }
                   8617: 
1.443     banghart 8618: #--- Displays the submissions first page -------
                   8619: sub submit_options {
1.608     www      8620:     my ($request,$symb) = @_;
1.72      ng       8621:     if (!$symb) {return '';}
                   8622: 
1.118     ng       8623:     &commonJSfunctions($request);
1.473     albertel 8624:     my $result;
1.533     bisitz   8625: 
1.72      ng       8626:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
1.618     www      8627: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
1.632     www      8628:     $result.=&selectfield(1).'
1.601     www      8629:                 <input type="hidden" name="command" value="submission" /> 
                   8630: 	      <input type="submit" value="'.&mt('Next').' &rarr;" />
                   8631:             </div>
                   8632:           </div>
                   8633: 
                   8634: 
                   8635:   </form>';
                   8636:     return $result;
                   8637: }
1.533     bisitz   8638: 
1.601     www      8639: sub selectfield {
                   8640:    my ($full)=@_;
1.635     raeburn  8641:    my %options = 
                   8642:           (&Apache::lonlocal::texthash(
                   8643:              'yes'       => 'with submissions',
                   8644:              'queued'    => 'in grading queue',
                   8645:              'graded'    => 'with ungraded submissions',
                   8646:              'incorrect' => 'with incorrect submissions',
                   8647:              'all'       => 'with any status'),
                   8648:              'select_form_order' => ['yes','queued','graded','incorrect','all']);
1.601     www      8649:    my $result='<div class="LC_columnSection">
1.537     harmsja  8650:   
1.533     bisitz   8651:     <fieldset>
                   8652:       <legend>
                   8653:        '.&mt('Sections').'
                   8654:       </legend>
1.601     www      8655:       '.&Apache::lonstatistics::SectionSelect('section','multiple',5).'
1.533     bisitz   8656:     </fieldset>
1.537     harmsja  8657:   
1.533     bisitz   8658:     <fieldset>
                   8659:       <legend>
                   8660:         '.&mt('Groups').'
                   8661:       </legend>
                   8662:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
                   8663:     </fieldset>
1.537     harmsja  8664:   
1.533     bisitz   8665:     <fieldset>
                   8666:       <legend>
                   8667:         '.&mt('Access Status').'
                   8668:       </legend>
1.601     www      8669:       '.&Apache::lonhtmlcommon::StatusOptions(undef,undef,5,undef,'mult').'
                   8670:     </fieldset>';
                   8671:     if ($full) {
                   8672:        $result.='
1.533     bisitz   8673:     <fieldset>
                   8674:       <legend>
                   8675:         '.&mt('Submission Status').'
1.601     www      8676:       </legend>'.
1.635     raeburn  8677:        &Apache::loncommon::select_form('all','submitonly',\%options).
1.601     www      8678:    '</fieldset>';
                   8679:     }
                   8680:     $result.='</div><br />';
1.44      ng       8681:     return $result;
1.2       albertel 8682: }
                   8683: 
1.285     albertel 8684: sub reset_perm {
                   8685:     undef(%perm);
                   8686: }
                   8687: 
                   8688: sub init_perm {
                   8689:     &reset_perm();
1.300     albertel 8690:     foreach my $test_perm ('vgr','mgr','opa') {
                   8691: 
                   8692: 	my $scope = $env{'request.course.id'};
                   8693: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
                   8694: 
                   8695: 	    $scope .= '/'.$env{'request.course.sec'};
                   8696: 	    if ( $perm{$test_perm}=
                   8697: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
                   8698: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
                   8699: 	    } else {
                   8700: 		delete($perm{$test_perm});
                   8701: 	    }
1.285     albertel 8702: 	}
                   8703:     }
                   8704: }
                   8705: 
1.400     www      8706: sub gather_clicker_ids {
1.408     albertel 8707:     my %clicker_ids;
1.400     www      8708: 
                   8709:     my $classlist = &Apache::loncoursedata::get_classlist();
                   8710: 
                   8711:     # Set up a couple variables.
1.407     albertel 8712:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
                   8713:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
1.438     www      8714:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
1.400     www      8715: 
1.407     albertel 8716:     foreach my $student (keys(%$classlist)) {
1.438     www      8717:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
1.407     albertel 8718:         my $username = $classlist->{$student}->[$username_idx];
                   8719:         my $domain   = $classlist->{$student}->[$domain_idx];
1.400     www      8720:         my $clickers =
1.408     albertel 8721: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
1.400     www      8722:         foreach my $id (split(/\,/,$clickers)) {
1.414     www      8723:             $id=~s/^[\#0]+//;
1.421     www      8724:             $id=~s/[\-\:]//g;
1.407     albertel 8725:             if (exists($clicker_ids{$id})) {
1.408     albertel 8726: 		$clicker_ids{$id}.=','.$username.':'.$domain;
1.400     www      8727:             } else {
1.408     albertel 8728: 		$clicker_ids{$id}=$username.':'.$domain;
1.400     www      8729:             }
                   8730:         }
                   8731:     }
1.407     albertel 8732:     return %clicker_ids;
1.400     www      8733: }
                   8734: 
1.402     www      8735: sub gather_adv_clicker_ids {
1.408     albertel 8736:     my %clicker_ids;
1.402     www      8737:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
                   8738:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
                   8739:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
1.409     albertel 8740:     foreach my $element (sort(keys(%coursepersonnel))) {
1.402     www      8741:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
                   8742:             my ($puname,$pudom)=split(/\:/,$person);
                   8743:             my $clickers =
1.408     albertel 8744: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
1.405     www      8745:             foreach my $id (split(/\,/,$clickers)) {
1.414     www      8746: 		$id=~s/^[\#0]+//;
1.421     www      8747:                 $id=~s/[\-\:]//g;
1.408     albertel 8748: 		if (exists($clicker_ids{$id})) {
                   8749: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
                   8750: 		} else {
                   8751: 		    $clicker_ids{$id}=$puname.':'.$pudom;
                   8752: 		}
1.405     www      8753:             }
1.402     www      8754:         }
                   8755:     }
1.407     albertel 8756:     return %clicker_ids;
1.402     www      8757: }
                   8758: 
1.413     www      8759: sub clicker_grading_parameters {
                   8760:     return ('gradingmechanism' => 'scalar',
                   8761:             'upfiletype' => 'scalar',
                   8762:             'specificid' => 'scalar',
                   8763:             'pcorrect' => 'scalar',
                   8764:             'pincorrect' => 'scalar');
                   8765: }
                   8766: 
1.400     www      8767: sub process_clicker {
1.608     www      8768:     my ($r,$symb)=@_;
1.400     www      8769:     if (!$symb) {return '';}
                   8770:     my $result=&checkforfile_js();
1.632     www      8771:     $result.=&Apache::loncommon::start_data_table().
                   8772:              &Apache::loncommon::start_data_table_header_row().
                   8773:              '<th>'.&mt('Specify a file containing clicker information and set grading options.').'</th>'.
                   8774:              &Apache::loncommon::end_data_table_header_row().
                   8775:              &Apache::loncommon::start_data_table_row()."<td>\n";
1.413     www      8776: # Attempt to restore parameters from last session, set defaults if not present
                   8777:     my %Saveable_Parameters=&clicker_grading_parameters();
                   8778:     &Apache::loncommon::restore_course_settings('grades_clicker',
                   8779:                                                  \%Saveable_Parameters);
                   8780:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
                   8781:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
                   8782:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
                   8783:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
                   8784: 
                   8785:     my %checked;
1.521     www      8786:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
1.413     www      8787:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
1.569     bisitz   8788:           $checked{$gradingmechanism}=' checked="checked"';
1.413     www      8789:        }
                   8790:     }
                   8791: 
1.632     www      8792:     my $upload=&mt("Evaluate File");
1.400     www      8793:     my $type=&mt("Type");
1.402     www      8794:     my $attendance=&mt("Award points just for participation");
                   8795:     my $personnel=&mt("Correctness determined from response by course personnel");
1.414     www      8796:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
1.521     www      8797:     my $given=&mt("Correctness determined from given list of answers").' '.
                   8798:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
1.402     www      8799:     my $pcorrect=&mt("Percentage points for correct solution");
                   8800:     my $pincorrect=&mt("Percentage points for incorrect solution");
1.413     www      8801:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
1.635     raeburn  8802: 						   {'iclicker' => 'i>clicker',
                   8803:                                                     'interwrite' => 'interwrite PRS'});
1.418     albertel 8804:     $symb = &Apache::lonenc::check_encrypt($symb);
1.597     wenzelju 8805:     $result.= &Apache::lonhtmlcommon::scripttag(<<ENDUPFORM);
1.402     www      8806: function sanitycheck() {
                   8807: // Accept only integer percentages
                   8808:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
                   8809:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
                   8810: // Find out grading choice
                   8811:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
                   8812:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
                   8813:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
                   8814:       }
                   8815:    }
                   8816: // By default, new choice equals user selection
                   8817:    newgradingchoice=gradingchoice;
                   8818: // Not good to give more points for false answers than correct ones
                   8819:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
                   8820:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
                   8821:    }
                   8822: // If new choice is attendance only, and old choice was correctness-based, restore defaults
                   8823:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
                   8824:       document.forms.gradesupload.pcorrect.value=100;
                   8825:       document.forms.gradesupload.pincorrect.value=100;
                   8826:    }
                   8827: // If the values are different, cannot be attendance only
                   8828:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
                   8829:        (gradingchoice=='attendance')) {
                   8830:        newgradingchoice='personnel';
                   8831:    }
                   8832: // Change grading choice to new one
                   8833:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
                   8834:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
                   8835:          document.forms.gradesupload.gradingmechanism[i].checked=true;
                   8836:       } else {
                   8837:          document.forms.gradesupload.gradingmechanism[i].checked=false;
                   8838:       }
                   8839:    }
                   8840: // Remember the old state
                   8841:    document.forms.gradesupload.waschecked.value=newgradingchoice;
                   8842: }
1.597     wenzelju 8843: ENDUPFORM
                   8844:     $result.= <<ENDUPFORM;
1.400     www      8845: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
                   8846: <input type="hidden" name="symb" value="$symb" />
                   8847: <input type="hidden" name="command" value="processclickerfile" />
                   8848: <input type="file" name="upfile" size="50" />
                   8849: <br /><label>$type: $selectform</label>
1.632     www      8850: ENDUPFORM
                   8851:     $result.='</td>'.&Apache::loncommon::end_data_table_row().
                   8852:                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDGRADINGFORM);
                   8853:       <label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
1.589     bisitz   8854: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
                   8855: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
1.414     www      8856: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
1.589     bisitz   8857: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
1.521     www      8858: <br />&nbsp;&nbsp;&nbsp;
                   8859: <input type="text" name="givenanswer" size="50" />
1.413     www      8860: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
1.632     www      8861: ENDGRADINGFORM
                   8862:          $result.='</td>'.&Apache::loncommon::end_data_table_row().
                   8863:                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDPERCFORM);
                   8864:       <label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
1.589     bisitz   8865: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
                   8866: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
1.597     wenzelju 8867: </form>'
1.632     www      8868: ENDPERCFORM
                   8869:     $result.='</td>'.
                   8870:              &Apache::loncommon::end_data_table_row().
                   8871:              &Apache::loncommon::end_data_table();
1.400     www      8872:     return $result;
                   8873: }
                   8874: 
                   8875: sub process_clicker_file {
1.608     www      8876:     my ($r,$symb)=@_;
1.400     www      8877:     if (!$symb) {return '';}
1.413     www      8878: 
                   8879:     my %Saveable_Parameters=&clicker_grading_parameters();
                   8880:     &Apache::loncommon::store_course_settings('grades_clicker',
                   8881:                                               \%Saveable_Parameters);
1.598     www      8882:     my $result='';
1.404     www      8883:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
1.408     albertel 8884: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
1.614     www      8885: 	return $result;
1.404     www      8886:     }
1.522     www      8887:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
1.521     www      8888:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
1.614     www      8889:         return $result;
1.521     www      8890:     }
1.522     www      8891:     my $foundgiven=0;
1.521     www      8892:     if ($env{'form.gradingmechanism'} eq 'given') {
                   8893:         $env{'form.givenanswer'}=~s/^\s*//gs;
                   8894:         $env{'form.givenanswer'}=~s/\s*$//gs;
1.644     www      8895:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
1.521     www      8896:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
1.522     www      8897:         my @answers=split(/\,/,$env{'form.givenanswer'});
                   8898:         $foundgiven=$#answers+1;
1.521     www      8899:     }
1.407     albertel 8900:     my %clicker_ids=&gather_clicker_ids();
1.408     albertel 8901:     my %correct_ids;
1.404     www      8902:     if ($env{'form.gradingmechanism'} eq 'personnel') {
1.408     albertel 8903: 	%correct_ids=&gather_adv_clicker_ids();
1.404     www      8904:     }
                   8905:     if ($env{'form.gradingmechanism'} eq 'specific') {
1.414     www      8906: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
                   8907: 	   $correct_id=~tr/a-z/A-Z/;
                   8908: 	   $correct_id=~s/\s//gs;
                   8909: 	   $correct_id=~s/^[\#0]+//;
1.421     www      8910:            $correct_id=~s/[\-\:]//g;
1.414     www      8911:            if ($correct_id) {
                   8912: 	      $correct_ids{$correct_id}='specified';
                   8913:            }
                   8914:         }
1.400     www      8915:     }
1.404     www      8916:     if ($env{'form.gradingmechanism'} eq 'attendance') {
1.408     albertel 8917: 	$result.=&mt('Score based on attendance only');
1.521     www      8918:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
1.522     www      8919:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
1.404     www      8920:     } else {
1.408     albertel 8921: 	my $number=0;
1.411     www      8922: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
1.408     albertel 8923: 	foreach my $id (sort(keys(%correct_ids))) {
1.411     www      8924: 	    $result.='<br /><tt>'.$id.'</tt> - ';
1.408     albertel 8925: 	    if ($correct_ids{$id} eq 'specified') {
                   8926: 		$result.=&mt('specified');
                   8927: 	    } else {
                   8928: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
                   8929: 		$result.=&Apache::loncommon::plainname($uname,$udom);
                   8930: 	    }
                   8931: 	    $number++;
                   8932: 	}
1.411     www      8933:         $result.="</p>\n";
1.408     albertel 8934: 	if ($number==0) {
                   8935: 	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
1.614     www      8936: 	    return $result;
1.408     albertel 8937: 	}
1.404     www      8938:     }
1.405     www      8939:     if (length($env{'form.upfile'}) < 2) {
1.407     albertel 8940:         $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
                   8941: 		     '<span class="LC_error">',
                   8942: 		     '</span>',
                   8943: 		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
1.614     www      8944:         return $result;
1.405     www      8945:     }
1.410     www      8946: 
                   8947: # Were able to get all the info needed, now analyze the file
                   8948: 
1.411     www      8949:     $result.=&Apache::loncommon::studentbrowser_javascript();
1.418     albertel 8950:     $symb = &Apache::lonenc::check_encrypt($symb);
1.632     www      8951:     $result.=&Apache::loncommon::start_data_table().
                   8952:              &Apache::loncommon::start_data_table_header_row().
                   8953:              '<th>'.&mt('Evaluate clicker file').'</th>'.
                   8954:              &Apache::loncommon::end_data_table_header_row().
                   8955:              &Apache::loncommon::start_data_table_row().(<<ENDHEADER);
                   8956: <td>
1.410     www      8957: <form method="post" action="/adm/grades" name="clickeranalysis">
                   8958: <input type="hidden" name="symb" value="$symb" />
                   8959: <input type="hidden" name="command" value="assignclickergrades" />
1.411     www      8960: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
                   8961: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
                   8962: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
1.410     www      8963: ENDHEADER
1.522     www      8964:     if ($env{'form.gradingmechanism'} eq 'given') {
                   8965:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
                   8966:     } 
1.408     albertel 8967:     my %responses;
                   8968:     my @questiontitles;
1.405     www      8969:     my $errormsg='';
                   8970:     my $number=0;
                   8971:     if ($env{'form.upfiletype'} eq 'iclicker') {
1.408     albertel 8972: 	($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
1.406     www      8973:     }
1.419     www      8974:     if ($env{'form.upfiletype'} eq 'interwrite') {
                   8975:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
                   8976:     }
1.411     www      8977:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
                   8978:              '<input type="hidden" name="number" value="'.$number.'" />'.
                   8979:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
                   8980:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
                   8981:              '<br />';
1.522     www      8982:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
                   8983:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
1.614     www      8984:        return $result;
1.522     www      8985:     } 
1.414     www      8986: # Remember Question Titles
                   8987: # FIXME: Possibly need delimiter other than ":"
                   8988:     for (my $i=0;$i<$number;$i++) {
                   8989:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
                   8990:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
                   8991:     }
1.411     www      8992:     my $correct_count=0;
                   8993:     my $student_count=0;
                   8994:     my $unknown_count=0;
1.414     www      8995: # Match answers with usernames
                   8996: # FIXME: Possibly need delimiter other than ":"
1.409     albertel 8997:     foreach my $id (keys(%responses)) {
1.410     www      8998:        if ($correct_ids{$id}) {
1.414     www      8999:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
1.411     www      9000:           $correct_count++;
1.410     www      9001:        } elsif ($clicker_ids{$id}) {
1.437     www      9002:           if ($clicker_ids{$id}=~/\,/) {
                   9003: # More than one user with the same clicker!
1.632     www      9004:              $result.="</td>".&Apache::loncommon::end_data_table_row().
                   9005:                            &Apache::loncommon::start_data_table_row()."<td>".
                   9006:                        &mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
1.437     www      9007:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
                   9008:                            "<select name='multi".$id."'>";
                   9009:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
                   9010:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
                   9011:              }
                   9012:              $result.='</select>';
                   9013:              $unknown_count++;
                   9014:           } else {
                   9015: # Good: found one and only one user with the right clicker
                   9016:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
                   9017:              $student_count++;
                   9018:           }
1.410     www      9019:        } else {
1.632     www      9020:           $result.="</td>".&Apache::loncommon::end_data_table_row().
                   9021:                            &Apache::loncommon::start_data_table_row()."<td>".
                   9022:                     &mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
1.411     www      9023:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
                   9024:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
                   9025:                    "\n".&mt("Domain").": ".
                   9026:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
1.643     www      9027:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
1.411     www      9028:           $unknown_count++;
1.410     www      9029:        }
1.405     www      9030:     }
1.412     www      9031:     $result.='<hr />'.
                   9032:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
1.521     www      9033:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
1.412     www      9034:        if ($correct_count==0) {
                   9035:           $errormsg.="Found no correct answers answers for grading!";
                   9036:        } elsif ($correct_count>1) {
1.414     www      9037:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
1.412     www      9038:        }
                   9039:     }
1.428     www      9040:     if ($number<1) {
                   9041:        $errormsg.="Found no questions.";
                   9042:     }
1.412     www      9043:     if ($errormsg) {
                   9044:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
                   9045:     } else {
                   9046:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
                   9047:     }
1.632     www      9048:     $result.='</form></td>'.
                   9049:              &Apache::loncommon::end_data_table_row().
                   9050:              &Apache::loncommon::end_data_table();
1.614     www      9051:     return $result;
1.400     www      9052: }
                   9053: 
1.405     www      9054: sub iclicker_eval {
1.406     www      9055:     my ($questiontitles,$responses)=@_;
1.405     www      9056:     my $number=0;
                   9057:     my $errormsg='';
                   9058:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
1.410     www      9059:         my %components=&Apache::loncommon::record_sep($line);
                   9060:         my @entries=map {$components{$_}} (sort(keys(%components)));
1.408     albertel 9061: 	if ($entries[0] eq 'Question') {
                   9062: 	    for (my $i=3;$i<$#entries;$i+=6) {
                   9063: 		$$questiontitles[$number]=$entries[$i];
                   9064: 		$number++;
                   9065: 	    }
                   9066: 	}
                   9067: 	if ($entries[0]=~/^\#/) {
                   9068: 	    my $id=$entries[0];
                   9069: 	    my @idresponses;
                   9070: 	    $id=~s/^[\#0]+//;
                   9071: 	    for (my $i=0;$i<$number;$i++) {
                   9072: 		my $idx=3+$i*6;
1.644     www      9073:                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
1.408     albertel 9074: 		push(@idresponses,$entries[$idx]);
                   9075: 	    }
                   9076: 	    $$responses{$id}=join(',',@idresponses);
                   9077: 	}
1.405     www      9078:     }
                   9079:     return ($errormsg,$number);
                   9080: }
                   9081: 
1.419     www      9082: sub interwrite_eval {
                   9083:     my ($questiontitles,$responses)=@_;
                   9084:     my $number=0;
                   9085:     my $errormsg='';
1.420     www      9086:     my $skipline=1;
                   9087:     my $questionnumber=0;
                   9088:     my %idresponses=();
1.419     www      9089:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
                   9090:         my %components=&Apache::loncommon::record_sep($line);
                   9091:         my @entries=map {$components{$_}} (sort(keys(%components)));
1.420     www      9092:         if ($entries[1] eq 'Time') { $skipline=0; next; }
                   9093:         if ($entries[1] eq 'Response') { $skipline=1; }
                   9094:         next if $skipline;
                   9095:         if ($entries[0]!=$questionnumber) {
                   9096:            $questionnumber=$entries[0];
                   9097:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
                   9098:            $number++;
1.419     www      9099:         }
1.420     www      9100:         my $id=$entries[4];
                   9101:         $id=~s/^[\#0]+//;
1.421     www      9102:         $id=~s/^v\d*\://i;
                   9103:         $id=~s/[\-\:]//g;
1.420     www      9104:         $idresponses{$id}[$number]=$entries[6];
                   9105:     }
1.524     raeburn  9106:     foreach my $id (keys(%idresponses)) {
1.420     www      9107:        $$responses{$id}=join(',',@{$idresponses{$id}});
                   9108:        $$responses{$id}=~s/^\s*\,//;
1.419     www      9109:     }
                   9110:     return ($errormsg,$number);
                   9111: }
                   9112: 
1.414     www      9113: sub assign_clicker_grades {
1.608     www      9114:     my ($r,$symb)=@_;
1.414     www      9115:     if (!$symb) {return '';}
1.416     www      9116: # See which part we are saving to
1.582     raeburn  9117:     my $res_error;
                   9118:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
                   9119:     if ($res_error) {
                   9120:         return &navmap_errormsg();
                   9121:     }
1.416     www      9122: # FIXME: This should probably look for the first handgradeable part
                   9123:     my $part=$$partlist[0];
                   9124: # Start screen output
1.632     www      9125:     my $result=&Apache::loncommon::start_data_table().
                   9126:              &Apache::loncommon::start_data_table_header_row().
                   9127:              '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
                   9128:              &Apache::loncommon::end_data_table_header_row().
                   9129:              &Apache::loncommon::start_data_table_row().'<td>';
1.414     www      9130: # Get correct result
                   9131: # FIXME: Possibly need delimiter other than ":"
                   9132:     my @correct=();
1.415     www      9133:     my $gradingmechanism=$env{'form.gradingmechanism'};
                   9134:     my $number=$env{'form.number'};
                   9135:     if ($gradingmechanism ne 'attendance') {
1.414     www      9136:        foreach my $key (keys(%env)) {
                   9137:           if ($key=~/^form\.correct\:/) {
                   9138:              my @input=split(/\,/,$env{$key});
                   9139:              for (my $i=0;$i<=$#input;$i++) {
                   9140:                  if (($correct[$i]) && ($input[$i]) &&
                   9141:                      ($correct[$i] ne $input[$i])) {
                   9142:                     $result.='<br /><span class="LC_warning">'.
                   9143:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
                   9144:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
1.644     www      9145:                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
1.414     www      9146:                     $correct[$i]=$input[$i];
                   9147:                  }
                   9148:              }
                   9149:           }
                   9150:        }
1.415     www      9151:        for (my $i=0;$i<$number;$i++) {
1.644     www      9152:           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
1.414     www      9153:              $result.='<br /><span class="LC_error">'.
                   9154:                       &mt('No correct result given for question "[_1]"!',
                   9155:                           $env{'form.question:'.$i}).'</span>';
                   9156:           }
                   9157:        }
1.644     www      9158:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
1.414     www      9159:     }
                   9160: # Start grading
1.415     www      9161:     my $pcorrect=$env{'form.pcorrect'};
                   9162:     my $pincorrect=$env{'form.pincorrect'};
1.416     www      9163:     my $storecount=0;
1.632     www      9164:     my %users=();
1.415     www      9165:     foreach my $key (keys(%env)) {
1.420     www      9166:        my $user='';
1.415     www      9167:        if ($key=~/^form\.student\:(.*)$/) {
1.420     www      9168:           $user=$1;
                   9169:        }
                   9170:        if ($key=~/^form\.unknown\:(.*)$/) {
                   9171:           my $id=$1;
                   9172:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
                   9173:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
1.437     www      9174:           } elsif ($env{'form.multi'.$id}) {
                   9175:              $user=$env{'form.multi'.$id};
1.420     www      9176:           }
                   9177:        }
1.632     www      9178:        if ($user) {
                   9179:           if ($users{$user}) {
                   9180:              $result.='<br /><span class="LC_warning">'.
                   9181:                       &mt("More than one entry found for <tt>[_1]</tt>!",$user).
                   9182:                       '</span><br />';
                   9183:           }
                   9184:           $users{$user}=1; 
1.415     www      9185:           my @answer=split(/\,/,$env{$key});
                   9186:           my $sum=0;
1.522     www      9187:           my $realnumber=$number;
1.415     www      9188:           for (my $i=0;$i<$number;$i++) {
1.576     www      9189:              if  ($correct[$i] eq '-') {
                   9190:                 $realnumber--;
1.644     www      9191:              } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/))  {
1.415     www      9192:                 if ($gradingmechanism eq 'attendance') {
                   9193:                    $sum+=$pcorrect;
1.576     www      9194:                 } elsif ($correct[$i] eq '*') {
1.522     www      9195:                    $sum+=$pcorrect;
1.415     www      9196:                 } else {
1.644     www      9197: # We actually grade if correct or not
                   9198:                    my $increment=$pincorrect;
                   9199: # Special case: numerical answer "0"
                   9200:                    if ($correct[$i] eq '0') {
                   9201:                       if ($answer[$i]=~/^[0\.]+$/) {
                   9202:                          $increment=$pcorrect;
                   9203:                       }
                   9204: # General numerical answer, both evaluate to something non-zero
                   9205:                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
                   9206:                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
                   9207:                          $increment=$pcorrect;
                   9208:                       }
                   9209: # Must be just alphanumeric
                   9210:                    } elsif ($answer[$i] eq $correct[$i]) {
                   9211:                       $increment=$pcorrect;
1.415     www      9212:                    }
1.644     www      9213:                    $sum+=$increment;
1.415     www      9214:                 }
                   9215:              }
                   9216:           }
1.522     www      9217:           my $ave=$sum/(100*$realnumber);
1.416     www      9218: # Store
                   9219:           my ($username,$domain)=split(/\:/,$user);
                   9220:           my %grades=();
                   9221:           $grades{"resource.$part.solved"}='correct_by_override';
                   9222:           $grades{"resource.$part.awarded"}=$ave;
                   9223:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
                   9224:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
                   9225:                                                  $env{'request.course.id'},
                   9226:                                                  $domain,$username);
                   9227:           if ($returncode ne 'ok') {
                   9228:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
                   9229:           } else {
                   9230:              $storecount++;
                   9231:           }
1.415     www      9232:        }
                   9233:     }
                   9234: # We are done
1.549     hauer    9235:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
1.632     www      9236:              '</td>'.
                   9237:              &Apache::loncommon::end_data_table_row().
                   9238:              &Apache::loncommon::end_data_table();
1.614     www      9239:     return $result;
1.414     www      9240: }
                   9241: 
1.582     raeburn  9242: sub navmap_errormsg {
                   9243:     return '<div class="LC_error">'.
                   9244:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
1.595     raeburn  9245:            &mt('It is recommended that you [_1]re-initialize the course[_2] and then return to this grading page.','<a href="/adm/roles?selectrole=1&newrole='.$env{'request.role'}.'">','</a>').
1.582     raeburn  9246:            '</div>';
                   9247: }
1.607     droeschl 9248: 
1.609     www      9249: sub startpage {
1.613     www      9250:     my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag) = @_;
1.614     www      9251:     unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
1.607     droeschl 9252:     $r->print(&Apache::loncommon::start_page('Grading',undef,
1.610     www      9253:                                           {'bread_crumbs' => $crumbs}));
1.645     www      9254:     &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
1.613     www      9255:     unless ($nodisplayflag) {
                   9256:        $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag));
                   9257:     }
1.607     droeschl 9258: }
1.582     raeburn  9259: 
1.622     www      9260: sub select_problem {
                   9261:     my ($r)=@_;
1.632     www      9262:     $r->print('<h3>'.&mt('Select the problem or one of the problems you want to grade').'</h3><form action="/adm/grades">');
1.622     www      9263:     $r->print(&Apache::lonstathelpers::problem_selector('.',undef,1));
                   9264:     $r->print('<input type="hidden" name="command" value="gradingmenu" />');
                   9265:     $r->print('<input type="submit" value="'.&mt('Next').' &rarr;" /></form>');
                   9266: }
                   9267: 
1.1       albertel 9268: sub handler {
1.41      ng       9269:     my $request=$_[0];
1.434     albertel 9270:     &reset_caches();
1.646     raeburn  9271:     if ($request->header_only) {
                   9272:         &Apache::loncommon::content_type($request,'text/html');
                   9273:         $request->send_http_header;
                   9274:         return OK;
                   9275:     }
                   9276:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
                   9277: 
                   9278:     &init_perm();
                   9279:     if (!$env{'request.course.id'}) {
                   9280:         # Not in a course.
                   9281:         $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
                   9282:         return HTTP_NOT_ACCEPTABLE;
                   9283:     } elsif (!%perm) {
                   9284:         $request->internal_redirect('/adm/quickgrades');
1.41      ng       9285:     }
1.646     raeburn  9286:     &Apache::loncommon::content_type($request,'text/html');
1.41      ng       9287:     $request->send_http_header;
1.646     raeburn  9288: 
1.608     www      9289: 
                   9290: # see what command we need to execute
                   9291: 
1.160     albertel 9292:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
                   9293:     my $command=$commands[0];
1.447     foxr     9294: 
1.160     albertel 9295:     if ($#commands > 0) {
                   9296: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
                   9297:     }
1.608     www      9298: 
                   9299: # see what the symb is
                   9300: 
                   9301:     my $symb=$env{'form.symb'};
                   9302:     unless ($symb) {
                   9303:        (my $url=$env{'form.url'}) =~ s-^https*://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
                   9304:        $symb=&Apache::lonnet::symbread($url);
                   9305:     }
1.646     raeburn  9306:     &Apache::lonenc::check_decrypt(\$symb);
1.608     www      9307: 
1.513     foxr     9308:     $ssi_error = 0;
1.637     www      9309:     if (($symb eq '' || $command eq '') && ($env{'request.course.id'})) {
1.601     www      9310: #
1.637     www      9311: # Not called from a resource, but inside a course
1.601     www      9312: #    
1.622     www      9313:         &startpage($request,undef,[],1,1);
                   9314:         &select_problem($request);
1.41      ng       9315:     } else {
1.104     albertel 9316: 	if ($command eq 'submission' && $perm{'vgr'}) {
1.608     www      9317:             &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}]);
1.611     www      9318: 	    ($env{'form.student'} eq '' ? &listStudents($request,$symb) : &submission($request,0,0,$symb));
1.103     albertel 9319: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
1.615     www      9320:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                   9321:                                        {href=>'',text=>'Select student'}],1,1);
1.608     www      9322: 	    &pickStudentPage($request,$symb);
1.103     albertel 9323: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
1.615     www      9324:             &startpage($request,$symb,
                   9325:                                       [{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                   9326:                                        {href=>'',text=>'Select student'},
                   9327:                                        {href=>'',text=>'Grade student'}],1,1);
1.608     www      9328: 	    &displayPage($request,$symb);
1.104     albertel 9329: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
1.616     www      9330:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
                   9331:                                        {href=>'',text=>'Select student'},
                   9332:                                        {href=>'',text=>'Grade student'},
                   9333:                                        {href=>'',text=>'Store grades'}],1,1);
1.608     www      9334: 	    &updateGradeByPage($request,$symb);
1.104     albertel 9335: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
1.619     www      9336:             &startpage($request,$symb,[{href=>'',text=>'...'},
                   9337:                                        {href=>'',text=>'Modify grades'}]);
1.608     www      9338: 	    &processGroup($request,$symb);
1.104     albertel 9339: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
1.608     www      9340:             &startpage($request,$symb);
                   9341: 	    $request->print(&grading_menu($request,$symb));
1.598     www      9342: 	} elsif ($command eq 'individual' && $perm{'vgr'}) {
1.617     www      9343:             &startpage($request,$symb,[{href=>'',text=>'Select individual students to grade'}]);
1.608     www      9344: 	    $request->print(&submit_options($request,$symb));
1.598     www      9345:         } elsif ($command eq 'ungraded' && $perm{'vgr'}) {
1.617     www      9346:             &startpage($request,$symb,[{href=>'',text=>'Grade ungraded submissions'}]);
                   9347:             $request->print(&listStudents($request,$symb,'graded'));
1.598     www      9348:         } elsif ($command eq 'table' && $perm{'vgr'}) {
1.614     www      9349:             &startpage($request,$symb,[{href=>"", text=>"Grading table"}]);
1.611     www      9350:             $request->print(&submit_options_table($request,$symb));
1.598     www      9351:         } elsif ($command eq 'all_for_one' && $perm{'vgr'}) {
1.615     www      9352:             &startpage($request,$symb,[{href=>'',text=>'Grade page/folder for one student'}],1,1);
1.608     www      9353:             $request->print(&submit_options_sequence($request,$symb));
1.104     albertel 9354: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
1.614     www      9355:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},{href=>'', text=>"Modify grades"}]);
1.608     www      9356: 	    $request->print(&viewgrades($request,$symb));
1.104     albertel 9357: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
1.620     www      9358:             &startpage($request,$symb,[{href=>'',text=>'...'},
                   9359:                                        {href=>'',text=>'Store grades'}]);
1.608     www      9360: 	    $request->print(&processHandGrade($request,$symb));
1.106     albertel 9361: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
1.614     www      9362:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},
                   9363:                                        {href=>&href_symb_cmd($symb,'viewgrades').'&group=all&section=all&Status=Active',
                   9364:                                                                              text=>"Modify grades"},
                   9365:                                        {href=>'', text=>"Store grades"}]);
1.608     www      9366: 	    $request->print(&editgrades($request,$symb));
1.602     www      9367:         } elsif ($command eq 'initialverifyreceipt' && $perm{'vgr'}) {
1.616     www      9368:             &startpage($request,$symb,[{href=>'',text=>'Verify Receipt Number'}]);
1.611     www      9369:             $request->print(&initialverifyreceipt($request,$symb));
1.106     albertel 9370: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
1.616     www      9371:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"initialverifyreceipt"),text=>'Verify Receipt Number'},
                   9372:                                        {href=>'',text=>'Verification Result'}]);
1.608     www      9373: 	    $request->print(&verifyreceipt($request,$symb));
1.400     www      9374:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
1.615     www      9375:             &startpage($request,$symb,[{href=>'', text=>'Process clicker'}]);
1.608     www      9376:             $request->print(&process_clicker($request,$symb));
1.400     www      9377:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
1.615     www      9378:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
                   9379:                                        {href=>'', text=>'Process clicker file'}]);
1.608     www      9380:             $request->print(&process_clicker_file($request,$symb));
1.414     www      9381:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
1.615     www      9382:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
                   9383:                                        {href=>'', text=>'Process clicker file'},
                   9384:                                        {href=>'', text=>'Store grades'}]);
1.608     www      9385:             $request->print(&assign_clicker_grades($request,$symb));
1.106     albertel 9386: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
1.627     www      9387:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9388: 	    $request->print(&upcsvScores_form($request,$symb));
1.106     albertel 9389: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
1.627     www      9390:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9391: 	    $request->print(&csvupload($request,$symb));
1.106     albertel 9392: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
1.627     www      9393:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9394: 	    $request->print(&csvuploadmap($request,$symb));
1.246     albertel 9395: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
1.257     albertel 9396: 	    if ($env{'form.associate'} ne 'Reverse Association') {
1.627     www      9397:                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9398: 		$request->print(&csvuploadoptions($request,$symb));
1.41      ng       9399: 	    } else {
1.257     albertel 9400: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
                   9401: 		    $env{'form.upfile_associate'} = 'reverse';
1.41      ng       9402: 		} else {
1.257     albertel 9403: 		    $env{'form.upfile_associate'} = 'forward';
1.41      ng       9404: 		}
1.627     www      9405:                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9406: 		$request->print(&csvuploadmap($request,$symb));
1.41      ng       9407: 	    }
1.246     albertel 9408: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
1.627     www      9409:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
1.608     www      9410: 	    $request->print(&csvuploadassign($request,$symb));
1.106     albertel 9411: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
1.616     www      9412:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.612     www      9413: 	    $request->print(&scantron_selectphase($request,undef,$symb));
1.203     albertel 9414:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
1.616     www      9415:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9416:  	    $request->print(&scantron_do_warning($request,$symb));
1.142     albertel 9417: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
1.616     www      9418:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9419: 	    $request->print(&scantron_validate_file($request,$symb));
1.106     albertel 9420: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
1.616     www      9421:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9422: 	    $request->print(&scantron_process_students($request,$symb));
1.157     albertel 9423:  	} elsif ($command eq 'scantronupload' && 
1.257     albertel 9424:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
                   9425: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
1.616     www      9426:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9427:  	    $request->print(&scantron_upload_scantron_data($request,$symb)); 
1.157     albertel 9428:  	} elsif ($command eq 'scantronupload_save' &&
1.257     albertel 9429:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
                   9430: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
1.616     www      9431:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9432:  	    $request->print(&scantron_upload_scantron_data_save($request,$symb));
1.202     albertel 9433:  	} elsif ($command eq 'scantron_download' &&
1.257     albertel 9434: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
1.616     www      9435:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.608     www      9436:  	    $request->print(&scantron_download_scantron_data($request,$symb));
1.523     raeburn  9437:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
1.616     www      9438:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
1.621     www      9439:             $request->print(&checkscantron_results($request,$symb));
                   9440:         } elsif ($command eq 'downloadfilesselect' && $perm{'vgr'}) {
                   9441:             &startpage($request,$symb,[{href=>'', text=>'Select which submissions to download'}]);
                   9442:             $request->print(&submit_options_download($request,$symb));
                   9443:          } elsif ($command eq 'downloadfileslink' && $perm{'vgr'}) {
                   9444:             &startpage($request,$symb,
                   9445:    [{href=>&href_symb_cmd($symb,'downloadfilesselect'), text=>'Select which submissions to download'},
                   9446:     {href=>'', text=>'Download submissions'}]);
                   9447:             &submit_download_link($request,$symb);
1.106     albertel 9448: 	} elsif ($command) {
1.620     www      9449:             &startpage($request,$symb,[{href=>'', text=>'Access denied'}]);
1.562     bisitz   9450: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
1.26      albertel 9451: 	}
1.2       albertel 9452:     }
1.513     foxr     9453:     if ($ssi_error) {
                   9454: 	&ssi_print_error($request);
                   9455:     }
1.639     www      9456:     &Apache::lonquickgrades::endGradeScreen($request);
1.353     albertel 9457:     $request->print(&Apache::loncommon::end_page());
1.434     albertel 9458:     &reset_caches();
1.646     raeburn  9459:     return OK;
1.44      ng       9460: }
                   9461: 
1.1       albertel 9462: 1;
                   9463: 
1.13      albertel 9464: __END__;
1.531     jms      9465: 
                   9466: 
                   9467: =head1 NAME
                   9468: 
                   9469: Apache::grades
                   9470: 
                   9471: =head1 SYNOPSIS
                   9472: 
                   9473: Handles the viewing of grades.
                   9474: 
                   9475: This is part of the LearningOnline Network with CAPA project
                   9476: described at http://www.lon-capa.org.
                   9477: 
                   9478: =head1 OVERVIEW
                   9479: 
                   9480: Do an ssi with retries:
                   9481: While I'd love to factor out this with the vesrion in lonprintout,
                   9482: that would either require a data coupling between modules, which I refuse to perpetuate (there's quite enough of that already), or would require the invention of another infrastructure
                   9483: I'm not quite ready to invent (e.g. an ssi_with_retry object).
                   9484: 
                   9485: At least the logic that drives this has been pulled out into loncommon.
                   9486: 
                   9487: 
                   9488: 
                   9489: ssi_with_retries - Does the server side include of a resource.
                   9490:                      if the ssi call returns an error we'll retry it up to
                   9491:                      the number of times requested by the caller.
                   9492:                      If we still have a proble, no text is appended to the
                   9493:                      output and we set some global variables.
                   9494:                      to indicate to the caller an SSI error occurred.  
                   9495:                      All of this is supposed to deal with the issues described
                   9496:                      in LonCAPA BZ 5631 see:
                   9497:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
                   9498:                      by informing the user that this happened.
                   9499: 
                   9500: Parameters:
                   9501:   resource   - The resource to include.  This is passed directly, without
                   9502:                interpretation to lonnet::ssi.
                   9503:   form       - The form hash parameters that guide the interpretation of the resource
                   9504:                
                   9505:   retries    - Number of retries allowed before giving up completely.
                   9506: Returns:
                   9507:   On success, returns the rendered resource identified by the resource parameter.
                   9508: Side Effects:
                   9509:   The following global variables can be set:
                   9510:    ssi_error                - If an unrecoverable error occurred this becomes true.
                   9511:                               It is up to the caller to initialize this to false
                   9512:                               if desired.
                   9513:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
                   9514:                               of the resource that could not be rendered by the ssi
                   9515:                               call.
                   9516:    ssi_error_message   - The error string fetched from the ssi response
                   9517:                               in the event of an error.
                   9518: 
                   9519: 
                   9520: =head1 HANDLER SUBROUTINE
                   9521: 
                   9522: ssi_with_retries()
                   9523: 
                   9524: =head1 SUBROUTINES
                   9525: 
                   9526: =over
                   9527: 
                   9528: =item scantron_get_correction() : 
                   9529: 
                   9530:    Builds the interface screen to interact with the operator to fix a
                   9531:    specific error condition in a specific scanline
                   9532: 
                   9533:  Arguments:
                   9534:     $r           - Apache request object
                   9535:     $i           - number of the current scanline
                   9536:     $scan_record - hash ref as returned from &scantron_parse_scanline()
                   9537:     $scan_config - hash ref as returned from &get_scantron_config()
                   9538:     $line        - full contents of the current scanline
                   9539:     $error       - error condition, valid values are
                   9540:                    'incorrectCODE', 'duplicateCODE',
                   9541:                    'doublebubble', 'missingbubble',
                   9542:                    'duplicateID', 'incorrectID'
                   9543:     $arg         - extra information needed
                   9544:        For errors:
                   9545:          - duplicateID   - paper number that this studentID was seen before on
                   9546:          - duplicateCODE - array ref of the paper numbers this CODE was
                   9547:                            seen on before
                   9548:          - incorrectCODE - current incorrect CODE 
                   9549:          - doublebubble  - array ref of the bubble lines that have double
                   9550:                            bubble errors
                   9551:          - missingbubble - array ref of the bubble lines that have missing
                   9552:                            bubble errors
                   9553: 
                   9554: =item  scantron_get_maxbubble() : 
                   9555: 
1.582     raeburn  9556:    Arguments:
                   9557:        $nav_error  - Reference to scalar which is a flag to indicate a
                   9558:                       failure to retrieve a navmap object.
                   9559:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
                   9560:        calling routine should trap the error condition and display the warning
                   9561:        found in &navmap_errormsg().
                   9562: 
1.649     raeburn  9563:        $scantron_config - Reference to bubblesheet format configuration hash.
                   9564: 
1.531     jms      9565:    Returns the maximum number of bubble lines that are expected to
                   9566:    occur. Does this by walking the selected sequence rendering the
                   9567:    resource and then checking &Apache::lonxml::get_problem_counter()
                   9568:    for what the current value of the problem counter is.
                   9569: 
                   9570:    Caches the results to $env{'form.scantron_maxbubble'},
                   9571:    $env{'form.scantron.bubble_lines.n'}, 
                   9572:    $env{'form.scantron.first_bubble_line.n'} and
                   9573:    $env{"form.scantron.sub_bubblelines.n"}
                   9574:    which are the total number of bubble, lines, the number of bubble
                   9575:    lines for response n and number of the first bubble line for response n,
                   9576:    and a comma separated list of numbers of bubble lines for sub-questions
                   9577:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
                   9578: 
                   9579: 
                   9580: =item  scantron_validate_missingbubbles() : 
                   9581: 
                   9582:    Validates all scanlines in the selected file to not have any
                   9583:     answers that don't have bubbles that have not been verified
                   9584:     to be bubble free.
                   9585: 
                   9586: =item  scantron_process_students() : 
                   9587: 
                   9588:    Routine that does the actual grading of the bubble sheet information.
                   9589: 
                   9590:    The parsed scanline hash is added to %env 
                   9591: 
                   9592:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
                   9593:    foreach resource , with the form data of
                   9594: 
                   9595: 	'submitted'     =>'scantron' 
                   9596: 	'grade_target'  =>'grade',
                   9597: 	'grade_username'=> username of student
                   9598: 	'grade_domain'  => domain of student
                   9599: 	'grade_courseid'=> of course
                   9600: 	'grade_symb'    => symb of resource to grade
                   9601: 
                   9602:     This triggers a grading pass. The problem grading code takes care
                   9603:     of converting the bubbled letter information (now in %env) into a
                   9604:     valid submission.
                   9605: 
                   9606: =item  scantron_upload_scantron_data() :
                   9607: 
                   9608:     Creates the screen for adding a new bubble sheet data file to a course.
                   9609: 
                   9610: =item  scantron_upload_scantron_data_save() : 
                   9611: 
                   9612:    Adds a provided bubble information data file to the course if user
                   9613:    has the correct privileges to do so. 
                   9614: 
                   9615: =item  valid_file() :
                   9616: 
                   9617:    Validates that the requested bubble data file exists in the course.
                   9618: 
                   9619: =item  scantron_download_scantron_data() : 
                   9620: 
                   9621:    Shows a list of the three internal files (original, corrected,
                   9622:    skipped) for a specific bubble sheet data file that exists in the
                   9623:    course.
                   9624: 
                   9625: =item  scantron_validate_ID() : 
                   9626: 
                   9627:    Validates all scanlines in the selected file to not have any
1.556     weissno  9628:    invalid or underspecified student/employee IDs
1.531     jms      9629: 
1.582     raeburn  9630: =item navmap_errormsg() :
                   9631: 
                   9632:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
                   9633:    Should be called whenever the request to instantiate a navmap object fails.  
                   9634: 
1.531     jms      9635: =back
                   9636: 
                   9637: =cut

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