File:  [LON-CAPA] / loncom / homework / grades.pm
Revision 1.596.2.12.2.41.2.6: download - view: text, annotated - select for diffs
Sat Feb 23 17:34:59 2019 UTC (5 years, 2 months ago) by raeburn
Branches: version_2_11_2_msu
- For 2.11.2 (modified)
  - Include changes in 1.596.2.12.2.47

    1: # The LearningOnline Network with CAPA
    2: # The LON-CAPA Grading handler
    3: #
    4: # $Id: grades.pm,v 1.596.2.12.2.41.2.6 2019/02/23 17:34:59 raeburn Exp $
    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: #
   28: 
   29: 
   30: 
   31: package Apache::grades;
   32: use strict;
   33: use Apache::style;
   34: use Apache::lonxml;
   35: use Apache::lonnet;
   36: use Apache::loncommon;
   37: use Apache::lonhtmlcommon;
   38: use Apache::lonnavmaps;
   39: use Apache::lonhomework;
   40: use Apache::lonpickcode;
   41: use Apache::loncoursedata;
   42: use Apache::lonmsg();
   43: use Apache::Constants qw(:common :http);
   44: use Apache::lonlocal;
   45: use Apache::lonenc;
   46: use Apache::bridgetask();
   47: use HTML::Parser();
   48: use File::MMagic;
   49: use String::Similarity;
   50: use LONCAPA;
   51: 
   52: use POSIX qw(floor);
   53: 
   54: 
   55: 
   56: my %perm=();
   57: my %old_essays=();
   58: 
   59: #  These variables are used to recover from ssi errors
   60: 
   61: my $ssi_retries = 5;
   62: my $ssi_error;
   63: my $ssi_error_resource;
   64: my $ssi_error_message;
   65: 
   66: 
   67: sub ssi_with_retries {
   68:     my ($resource, $retries, %form) = @_;
   69:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
   70:     if ($response->is_error) {
   71: 	$ssi_error          = 1;
   72: 	$ssi_error_resource = $resource;
   73: 	$ssi_error_message  = $response->code . " " . $response->message;
   74:     }
   75: 
   76:     return $content;
   77: 
   78: }
   79: #
   80: #  Prodcuces an ssi retry failure error message to the user:
   81: #
   82: 
   83: sub ssi_print_error {
   84:     my ($r) = @_;
   85:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
   86:     $r->print('
   87: <br />
   88: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   89: <p>
   90: '.&mt('Unable to retrieve a resource from a server:').'<br />
   91: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   92: '.&mt('Error:').' '.$ssi_error_message.'
   93: </p>
   94: <p>'.
   95: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   96: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   97: '</p>');
   98:     return;
   99: }
  100: 
  101: #
  102: # --- Retrieve the parts from the metadata file.---
  103: sub getpartlist {
  104:     my ($symb,$errorref) = @_;
  105: 
  106:     my $navmap   = Apache::lonnavmaps::navmap->new();
  107:     unless (ref($navmap)) {
  108:         if (ref($errorref)) { 
  109:             $$errorref = 'navmap';
  110:             return;
  111:         }
  112:     }
  113:     my $res      = $navmap->getBySymb($symb);
  114:     my $partlist = $res->parts();
  115:     my $url      = $res->src();
  116:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
  117: 
  118:     my @stores;
  119:     foreach my $part (@{ $partlist }) {
  120: 	foreach my $key (@metakeys) {
  121: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
  122: 	}
  123:     }
  124:     return @stores;
  125: }
  126: 
  127: # --- Get the symbolic name of a problem and the url
  128: sub get_symb {
  129:     my ($request,$silent) = @_;
  130:     my $symb=$env{'form.symb'};
  131:     unless ($symb) {
  132:         (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
  133:         $symb = &Apache::lonnet::symbread($url);
  134:         if ($symb eq '') { 
  135: 	    if (!$silent) {
  136:                 $request->print(&mt("Unable to handle ambiguous references: [_1].",$url));
  137: 	        return ();
  138: 	    }
  139:         }
  140:     }
  141:     &Apache::lonenc::check_decrypt(\$symb);
  142:     return ($symb);
  143: }
  144: 
  145: #--- Format fullname, username:domain if different for display
  146: #--- Use anywhere where the student names are listed
  147: sub nameUserString {
  148:     my ($type,$fullname,$uname,$udom) = @_;
  149:     if ($type eq 'header') {
  150: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
  151:     } else {
  152: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
  153: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
  154:     }
  155: }
  156: 
  157: #--- Get the partlist and the response type for a given problem. ---
  158: #--- Indicate if a response type is coded handgraded or not. ---
  159: sub response_type {
  160:     my ($symb,$response_error) = @_;
  161: 
  162:     my $navmap = Apache::lonnavmaps::navmap->new();
  163:     unless (ref($navmap)) {
  164:         if (ref($response_error)) {
  165:             $$response_error = 1;
  166:         }
  167:         return;
  168:     }
  169:     my $res = $navmap->getBySymb($symb);
  170:     unless (ref($res)) {
  171:         $$response_error = 1;
  172:         return;
  173:     }
  174:     my $partlist = $res->parts();
  175:     my %vPart = 
  176: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
  177:     my (%response_types,%handgrade);
  178:     foreach my $part (@{ $partlist }) {
  179: 	next if (%vPart && !exists($vPart{$part}));
  180: 
  181: 	my @types = $res->responseType($part);
  182: 	my @ids = $res->responseIds($part);
  183: 	for (my $i=0; $i < scalar(@ids); $i++) {
  184: 	    $response_types{$part}{$ids[$i]} = $types[$i];
  185: 	    $handgrade{$part.'_'.$ids[$i]} = 
  186: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
  187: 				     '.handgrade',$symb);
  188: 	}
  189:     }
  190:     return ($partlist,\%handgrade,\%response_types);
  191: }
  192: 
  193: sub flatten_responseType {
  194:     my ($responseType) = @_;
  195:     my @part_response_id =
  196: 	map { 
  197: 	    my $part = $_;
  198: 	    map {
  199: 		[$part,$_]
  200: 		} sort(keys(%{ $responseType->{$part} }));
  201: 	} sort(keys(%$responseType));
  202:     return @part_response_id;
  203: }
  204: 
  205: sub get_display_part {
  206:     my ($partID,$symb)=@_;
  207:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
  208:     if (defined($display) and $display ne '') {
  209:         $display.= ' (<span class="LC_internal_info">'
  210:                   .&mt('Part ID: [_1]',$partID).'</span>)';
  211:     } else {
  212: 	$display=$partID;
  213:     }
  214:     return $display;
  215: }
  216: 
  217: #--- Show resource title
  218: #--- and parts and response type
  219: sub showResourceInfo {
  220:     my ($symb,$probTitle,$checkboxes,$res_error) = @_;
  221:     my $result = '<h3>'.&mt('Current Resource').': '.$probTitle.'</h3>'."\n";
  222:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
  223:     if (ref($res_error)) {
  224:         if ($$res_error) {
  225:             return;
  226:         }
  227:     }
  228:     $result.=&Apache::loncommon::start_data_table()
  229:             .&Apache::loncommon::start_data_table_header_row();
  230:     if ($checkboxes) {
  231:         $result.='<th>&nbsp;</th>';
  232:     }
  233:     $result.='<th>'.&mt('Problem Part').'</th>'
  234:             .'<th>'.&mt('Res. ID').'</th>'
  235:             .'<th>'.&mt('Type').'</th>'
  236:             .&Apache::loncommon::end_data_table_header_row();
  237:     my %resptype = ();
  238:     my $hdgrade='no';
  239:     my %partsseen;
  240:     foreach my $partID (sort(keys(%$responseType))) {
  241:         foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) {
  242:             my $handgrade=$$handgrade{$partID.'_'.$resID};
  243:             my $responsetype = $responseType->{$partID}->{$resID};
  244:             $hdgrade = $handgrade if ($handgrade eq 'yes');
  245:             $result.=&Apache::loncommon::start_data_table_row();
  246:             if ($checkboxes) {
  247:                 if (exists($partsseen{$partID})) {
  248:                     $result.="<td>&nbsp;</td>";
  249:                 } else {
  250:                     $result.="<td><input type='checkbox' name='vPart' value='$partID' checked='checked' /></td>";
  251:                 }
  252:                 $partsseen{$partID}=1;
  253:             }
  254:             my $display_part=&get_display_part($partID,$symb);
  255:             $result.='<td>'.$display_part.'</td>'
  256:                     .'<td>'.'<span class="LC_internal_info">'.$resID.'</span></td>'
  257:                     .'<td>'.&mt($responsetype).'</td>'
  258: #                   .'<td><b>'.&mt('Handgrade: [_1]',$handgrade).'</b></td>'
  259:                     .&Apache::loncommon::end_data_table_row();
  260:         }
  261:     }
  262:     $result.=&Apache::loncommon::end_data_table();
  263:     return $result,$responseType,$hdgrade,$partlist,$handgrade;
  264: }
  265: 
  266: sub reset_caches {
  267:     &reset_analyze_cache();
  268:     &reset_perm();
  269:     &reset_old_essays();
  270: }
  271: 
  272: {
  273:     my %analyze_cache;
  274:     my %analyze_cache_formkeys;
  275: 
  276:     sub reset_analyze_cache {
  277: 	undef(%analyze_cache);
  278:         undef(%analyze_cache_formkeys);
  279:     }
  280: 
  281:     sub get_analyze {
  282: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
  283: 	my $key = "$symb\0$uname\0$udom";
  284:         if ($type eq 'randomizetry') {
  285:             if ($trial ne '') {
  286:                 $key .= "\0".$trial;
  287:             }
  288:         }
  289: 	if (exists($analyze_cache{$key})) {
  290:             my $getupdate = 0;
  291:             if (ref($add_to_hash) eq 'HASH') {
  292:                 foreach my $item (keys(%{$add_to_hash})) {
  293:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
  294:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
  295:                             $getupdate = 1;
  296:                             last;
  297:                         }
  298:                     } else {
  299:                         $getupdate = 1;
  300:                     }
  301:                 }
  302:             }
  303:             if (!$getupdate) {
  304:                 return $analyze_cache{$key};
  305:             }
  306:         }
  307: 
  308: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  309: 	$url=&Apache::lonnet::clutter($url);
  310:         my %form = ('grade_target'      => 'analyze',
  311:                     'grade_domain'      => $udom,
  312:                     'grade_symb'        => $symb,
  313:                     'grade_courseid'    =>  $env{'request.course.id'},
  314:                     'grade_username'    => $uname,
  315:                     'grade_noincrement' => $no_increment);
  316:         if ($bubbles_per_row ne '') {
  317:             $form{'bubbles_per_row'} = $bubbles_per_row;
  318:         }
  319:         if ($type eq 'randomizetry') {
  320:             $form{'grade_questiontype'} = $type;
  321:             if ($rndseed ne '') {
  322:                 $form{'grade_rndseed'} = $rndseed;
  323:             }
  324:         }
  325:         if (ref($add_to_hash)) {
  326:             %form = (%form,%{$add_to_hash});
  327:         }
  328: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
  329: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  330: 	my %analyze=&Apache::lonnet::str2hash($subresult);
  331:         if (ref($add_to_hash) eq 'HASH') {
  332:             $analyze_cache_formkeys{$key} = $add_to_hash;
  333:         } else {
  334:             $analyze_cache_formkeys{$key} = {};
  335:         }
  336: 	return $analyze_cache{$key} = \%analyze;
  337:     }
  338: 
  339:     sub get_order {
  340: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
  341: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
  342: 	return $analyze->{"$partid.$respid.shown"};
  343:     }
  344: 
  345:     sub get_radiobutton_correct_foil {
  346: 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
  347: 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
  348:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
  349:         if (ref($foils) eq 'ARRAY') {
  350: 	    foreach my $foil (@{$foils}) {
  351: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
  352: 		    return $foil;
  353: 	        }
  354: 	    }
  355: 	}
  356:     }
  357: 
  358:     sub scantron_partids_tograde {
  359:         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row,$scancode) = @_;
  360:         my (%analysis,@parts);
  361:         if (ref($resource)) {
  362:             my $symb = $resource->symb();
  363:             my $add_to_form;
  364:             if ($check_for_randomlist) {
  365:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
  366:             }
  367:             if ($scancode) {
  368:                 if (ref($add_to_form) eq 'HASH') {
  369:                     $add_to_form->{'code_for_randomlist'} = $scancode;
  370:                 } else {
  371:                     $add_to_form = { 'code_for_randomlist' => $scancode,};
  372:                 }
  373:             }
  374:             my $analyze =
  375:                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
  376:                              undef,undef,undef,$bubbles_per_row);
  377:             if (ref($analyze) eq 'HASH') {
  378:                 %analysis = %{$analyze};
  379:             }
  380:             if (ref($analysis{'parts'}) eq 'ARRAY') {
  381:                 foreach my $part (@{$analysis{'parts'}}) {
  382:                     my ($id,$respid) = split(/\./,$part);
  383:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
  384:                         push(@parts,$part);
  385:                     }
  386:                 }
  387:             }
  388:         }
  389:         return (\%analysis,\@parts);
  390:     }
  391: 
  392: }
  393: 
  394: #--- Clean response type for display
  395: #--- Currently filters option/rank/radiobutton/match/essay/Task
  396: #        response types only.
  397: sub cleanRecord {
  398:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
  399: 	$uname,$udom,$type,$trial,$rndseed) = @_;
  400:     my $grayFont = '<span class="LC_internal_info">';
  401:     if ($response =~ /^(option|rank)$/) {
  402: 	my %answer=&Apache::lonnet::str2hash($answer);
  403:         my @answer = %answer;
  404:         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
  405: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  406: 	my ($toprow,$bottomrow);
  407: 	foreach my $foil (@$order) {
  408: 	    if ($grading{$foil} == 1) {
  409: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
  410: 	    } else {
  411: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
  412: 	    }
  413: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  414: 	}
  415: 	return '<blockquote><table border="1">'.
  416: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  417: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  418: 	    $bottomrow.'</tr></table></blockquote>';
  419:     } elsif ($response eq 'match') {
  420: 	my %answer=&Apache::lonnet::str2hash($answer);
  421:         my @answer = %answer;
  422:         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
  423: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  424: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
  425: 	my ($toprow,$middlerow,$bottomrow);
  426: 	foreach my $foil (@$order) {
  427: 	    my $item=shift(@items);
  428: 	    if ($grading{$foil} == 1) {
  429: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
  430: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
  431: 	    } else {
  432: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
  433: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
  434: 	    }
  435: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  436: 	}
  437: 	return '<blockquote><table border="1">'.
  438: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  439: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
  440: 	    $middlerow.'</tr>'.
  441: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  442: 	    $bottomrow.'</tr></table></blockquote>';
  443:     } elsif ($response eq 'radiobutton') {
  444: 	my %answer=&Apache::lonnet::str2hash($answer);
  445: 	my ($toprow,$bottomrow);
  446: 	my $correct = 
  447: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
  448: 	foreach my $foil (@$order) {
  449: 	    if (exists($answer{$foil})) {
  450: 		if ($foil eq $correct) {
  451: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
  452: 		} else {
  453: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
  454: 		}
  455: 	    } else {
  456: 		$toprow.='<td>'.&mt('false').'</td>';
  457: 	    }
  458: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  459: 	}
  460: 	return '<blockquote><table border="1">'.
  461: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  462: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  463: 	    $bottomrow.'</tr></table></blockquote>';
  464:     } elsif ($response eq 'essay') {
  465: 	if (! exists ($env{'form.'.$symb})) {
  466: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
  467: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
  468: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
  469: 
  470: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  471: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
  472: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
  473: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
  474: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
  475: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
  476: 	}
  477: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
  478:     } elsif ( $response eq 'organic') {
  479:         my $result=&mt('Smile representation: [_1]',
  480:                            '"<tt>'.&HTML::Entities::encode($answer, '"<>&').'</tt>"');
  481: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
  482: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
  483: 	return $result;
  484:     } elsif ( $response eq 'Task') {
  485: 	if ( $answer eq 'SUBMITTED') {
  486: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
  487: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
  488: 	    return $result;
  489: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
  490: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
  491: 			       keys(%{$record}));
  492: 	    return join('<br />',($version,@matches));
  493: 			       
  494: 			       
  495: 	} else {
  496: 	    my $result =
  497: 		'<p>'
  498: 		.&mt('Overall result: [_1]',
  499: 		     $record->{$version."resource.$respid.$partid.status"})
  500: 		.'</p>';
  501: 	    
  502: 	    $result .= '<ul>';
  503: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
  504: 			     keys(%{$record}));
  505: 	    foreach my $grade (sort(@grade)) {
  506: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
  507: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
  508: 				     $dim, $record->{$grade}).
  509: 			  '</li>';
  510: 	    }
  511: 	    $result.='</ul>';
  512: 	    return $result;
  513: 	}
  514:     } elsif ( $response =~ m/(?:numerical|formula|custom)/) {
  515:         # Respect multiple input fields, see Bug #5409 
  516: 	$answer = 
  517: 	    &Apache::loncommon::format_previous_attempt_value('submission',
  518: 							      $answer);
  519:         return $answer;
  520:     }
  521:     return &HTML::Entities::encode($answer, '"<>&');
  522: }
  523: 
  524: #-- A couple of common js functions
  525: sub commonJSfunctions {
  526:     my $request = shift;
  527:     $request->print(<<COMMONJSFUNCTIONS);
  528: <script type="text/javascript" language="javascript">
  529:     function radioSelection(radioButton) {
  530: 	var selection=null;
  531: 	if (radioButton.length > 1) {
  532: 	    for (var i=0; i<radioButton.length; i++) {
  533: 		if (radioButton[i].checked) {
  534: 		    return radioButton[i].value;
  535: 		}
  536: 	    }
  537: 	} else {
  538: 	    if (radioButton.checked) return radioButton.value;
  539: 	}
  540: 	return selection;
  541:     }
  542: 
  543:     function pullDownSelection(selectOne) {
  544: 	var selection="";
  545: 	if (selectOne.length > 1) {
  546: 	    for (var i=0; i<selectOne.length; i++) {
  547: 		if (selectOne[i].selected) {
  548: 		    return selectOne[i].value;
  549: 		}
  550: 	    }
  551: 	} else {
  552:             // only one value it must be the selected one
  553: 	    return selectOne.value;
  554: 	}
  555:     }
  556: </script>
  557: COMMONJSFUNCTIONS
  558: }
  559: 
  560: #--- Dumps the class list with usernames,list of sections,
  561: #--- section, ids and fullnames for each user.
  562: sub getclasslist {
  563:     my ($getsec,$filterlist,$getgroup) = @_;
  564:     my @getsec;
  565:     my @getgroup;
  566:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  567:     if (!ref($getsec)) {
  568: 	if ($getsec ne '' && $getsec ne 'all') {
  569: 	    @getsec=($getsec);
  570: 	}
  571:     } else {
  572: 	@getsec=@{$getsec};
  573:     }
  574:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
  575:     if (!ref($getgroup)) {
  576: 	if ($getgroup ne '' && $getgroup ne 'all') {
  577: 	    @getgroup=($getgroup);
  578: 	}
  579:     } else {
  580: 	@getgroup=@{$getgroup};
  581:     }
  582:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
  583: 
  584:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
  585:     # Bail out if we were unable to get the classlist
  586:     return if (! defined($classlist));
  587:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
  588:     #
  589:     my %sections;
  590:     my %fullnames;
  591:     foreach my $student (keys(%$classlist)) {
  592:         my $end      = 
  593:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
  594:         my $start    = 
  595:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
  596:         my $id       = 
  597:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
  598:         my $section  = 
  599:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
  600:         my $fullname = 
  601:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
  602:         my $status   = 
  603:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
  604:         my $group   = 
  605:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  606: 	# filter students according to status selected
  607: 	if ($filterlist && (!($stu_status =~ /Any/))) {
  608: 	    if (!($stu_status =~ $status)) {
  609: 		delete($classlist->{$student});
  610: 		next;
  611: 	    }
  612: 	}
  613: 	# filter students according to groups selected
  614: 	my @stu_groups = split(/,/,$group);
  615: 	if (@getgroup) {
  616: 	    my $exclude = 1;
  617: 	    foreach my $grp (@getgroup) {
  618: 	        foreach my $stu_group (@stu_groups) {
  619: 	            if ($stu_group eq $grp) {
  620: 	                $exclude = 0;
  621:     	            } 
  622: 	        }
  623:     	        if (($grp eq 'none') && !$group) {
  624:         	        $exclude = 0;
  625:         	}
  626: 	    }
  627: 	    if ($exclude) {
  628: 	        delete($classlist->{$student});
  629: 	    }
  630: 	}
  631: 	$section = ($section ne '' ? $section : 'none');
  632: 	if (&canview($section)) {
  633: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  634: 		$sections{$section}++;
  635: 		if ($classlist->{$student}) {
  636: 		    $fullnames{$student}=$fullname;
  637: 		}
  638: 	    } else {
  639: 		delete($classlist->{$student});
  640: 	    }
  641: 	} else {
  642: 	    delete($classlist->{$student});
  643: 	}
  644:     }
  645:     my %seen = ();
  646:     my @sections = sort(keys(%sections));
  647:     return ($classlist,\@sections,\%fullnames);
  648: }
  649: 
  650: sub canmodify {
  651:     my ($sec)=@_;
  652:     if ($perm{'mgr'}) {
  653: 	if (!defined($perm{'mgr_section'})) {
  654: 	    # can modify whole class
  655: 	    return 1;
  656: 	} else {
  657: 	    if ($sec eq $perm{'mgr_section'}) {
  658: 		#can modify the requested section
  659: 		return 1;
  660: 	    } else {
  661: 		# can't modify the request section
  662: 		return 0;
  663: 	    }
  664: 	}
  665:     }
  666:     #can't modify
  667:     return 0;
  668: }
  669: 
  670: sub canview {
  671:     my ($sec)=@_;
  672:     if ($perm{'vgr'}) {
  673: 	if (!defined($perm{'vgr_section'})) {
  674: 	    # can modify whole class
  675: 	    return 1;
  676: 	} else {
  677: 	    if ($sec eq $perm{'vgr_section'}) {
  678: 		#can modify the requested section
  679: 		return 1;
  680: 	    } else {
  681: 		# can't modify the request section
  682: 		return 0;
  683: 	    }
  684: 	}
  685:     }
  686:     #can't modify
  687:     return 0;
  688: }
  689: 
  690: #--- Retrieve the grade status of a student for all the parts
  691: sub student_gradeStatus {
  692:     my ($symb,$udom,$uname,$partlist) = @_;
  693:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
  694:     my %partstatus = ();
  695:     foreach (@$partlist) {
  696: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  697: 	$status              = 'nothing' if ($status eq '');
  698: 	$partstatus{$_}      = $status;
  699: 	my $subkey           = "resource.$_.submitted_by";
  700: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
  701:     }
  702:     return %partstatus;
  703: }
  704: 
  705: # hidden form and javascript that calls the form
  706: # Use by verifyscript and viewgrades
  707: # Shows a student's view of problem and submission
  708: sub jscriptNform {
  709:     my ($symb) = @_;
  710:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  711:     my $jscript='<script type="text/javascript" language="javascript">'."\n".
  712: 	'    function viewOneStudent(user,domain) {'."\n".
  713: 	'	document.onestudent.student.value = user;'."\n".
  714: 	'	document.onestudent.userdom.value = domain;'."\n".
  715: 	'	document.onestudent.submit();'."\n".
  716: 	'    }'."\n".
  717: 	'</script>'."\n";
  718:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
  719: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  720: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
  721: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n".
  722: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
  723: 	'<input type="hidden" name="command" value="submission" />'."\n".
  724: 	'<input type="hidden" name="student" value="" />'."\n".
  725: 	'<input type="hidden" name="userdom" value="" />'."\n".
  726: 	'</form>'."\n";
  727:     return $jscript;
  728: }
  729: 
  730: 
  731: 
  732: # Given the score (as a number [0-1] and the weight) what is the final
  733: # point value? This function will round to the nearest tenth, third,
  734: # or quarter if one of those is within the tolerance of .00001.
  735: sub compute_points {
  736:     my ($score, $weight) = @_;
  737:     
  738:     my $tolerance = .00001;
  739:     my $points = $score * $weight;
  740: 
  741:     # Check for nearness to 1/x.
  742:     my $check_for_nearness = sub {
  743:         my ($factor) = @_;
  744:         my $num = ($points * $factor) + $tolerance;
  745:         my $floored_num = floor($num);
  746:         if ($num - $floored_num < 2 * $tolerance * $factor) {
  747:             return $floored_num / $factor;
  748:         }
  749:         return $points;
  750:     };
  751: 
  752:     $points = $check_for_nearness->(10);
  753:     $points = $check_for_nearness->(3);
  754:     $points = $check_for_nearness->(4);
  755:     
  756:     return $points;
  757: }
  758: 
  759: #------------------ End of general use routines --------------------
  760: 
  761: #
  762: # Find most similar essay
  763: #
  764: 
  765: sub most_similar {
  766:     my ($uname,$udom,$symb,$uessay)=@_;
  767: 
  768:     unless ($symb) { return ''; }
  769: 
  770:     unless (ref($old_essays{$symb}) eq 'HASH') { return ''; }
  771: 
  772: # ignore spaces and punctuation
  773: 
  774:     $uessay=~s/\W+/ /gs;
  775: 
  776: # ignore empty submissions (occuring when only files are sent)
  777: 
  778:     unless ($uessay=~/\w+/s) { return ''; }
  779: 
  780: # these will be returned. Do not care if not at least 50 percent similar
  781:     my $limit=0.6;
  782:     my $sname='';
  783:     my $sdom='';
  784:     my $scrsid='';
  785:     my $sessay='';
  786: # go through all essays ...
  787:     foreach my $tkey (keys(%{$old_essays{$symb}})) {
  788: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  789: # ... except the same student
  790:         next if (($tname eq $uname) && ($tdom eq $udom));
  791: 	my $tessay=$old_essays{$symb}{$tkey};
  792: 	$tessay=~s/\W+/ /gs;
  793: # String similarity gives up if not even limit
  794: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  795: # Found one
  796: 	if ($tsimilar>$limit) {
  797: 	    $limit=$tsimilar;
  798: 	    $sname=$tname;
  799: 	    $sdom=$tdom;
  800: 	    $scrsid=$tcrsid;
  801: 	    $sessay=$old_essays{$symb}{$tkey};
  802: 	}
  803:     }
  804:     if ($limit>0.6) {
  805:        return ($sname,$sdom,$scrsid,$sessay,$limit);
  806:     } else {
  807:        return ('','','','',0);
  808:     }
  809: }
  810: 
  811: #-------------------------------------------------------------------
  812: 
  813: #------------------------------------ Receipt Verification Routines
  814: #
  815: #--- Check whether a receipt number is valid.---
  816: sub verifyreceipt {
  817:     my $request  = shift;
  818: 
  819:     my $courseid = $env{'request.course.id'};
  820:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
  821: 	$env{'form.receipt'};
  822:     $receipt     =~ s/[^\-\d]//g;
  823:     my ($symb)   = &get_symb($request);
  824: 
  825:     my $title.=
  826: 	'<h3><span class="LC_info">'.
  827: 	&mt('Verifying Receipt No. [_1]',$receipt).
  828: 	'</span></h3>'."\n".
  829: 	'<h4>'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).
  830: 	'</h4>'."\n";
  831: 
  832:     my ($string,$contents,$matches) = ('','',0);
  833:     my (undef,undef,$fullname) = &getclasslist('all','0');
  834:     
  835:     my $receiptparts=0;
  836:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
  837: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
  838:     my $parts=['0'];
  839:     if ($receiptparts) {
  840:         my $res_error; 
  841:         ($parts)=&response_type($symb,\$res_error);
  842:         if ($res_error) {
  843:             return &navmap_errormsg();
  844:         } 
  845:     }
  846:     
  847:     my $header = 
  848: 	&Apache::loncommon::start_data_table().
  849: 	&Apache::loncommon::start_data_table_header_row().
  850: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
  851: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
  852: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
  853:     if ($receiptparts) {
  854: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
  855:     }
  856:     $header.=
  857: 	&Apache::loncommon::end_data_table_header_row();
  858: 
  859:     foreach (sort 
  860: 	     {
  861: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  862: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  863: 		 }
  864: 		 return $a cmp $b;
  865: 	     } (keys(%$fullname))) {
  866: 	my ($uname,$udom)=split(/\:/);
  867: 	foreach my $part (@$parts) {
  868: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
  869: 		$contents.=
  870: 		    &Apache::loncommon::start_data_table_row().
  871: 		    '<td>&nbsp;'."\n".
  872: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
  873: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
  874: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
  875: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
  876: 		if ($receiptparts) {
  877: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
  878: 		}
  879: 		$contents.= 
  880: 		    &Apache::loncommon::end_data_table_row()."\n";
  881: 		
  882: 		$matches++;
  883: 	    }
  884: 	}
  885:     }
  886:     if ($matches == 0) {
  887:         $string = $title
  888:                  .'<p class="LC_warning">'
  889:                  .&mt('No match found for the above receipt number.')
  890:                  .'</p>';
  891:     } else {
  892: 	$string = &jscriptNform($symb).$title.
  893: 	    '<p>'.
  894: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
  895: 	    '</p>'.
  896: 	    $header.
  897: 	    $contents.
  898: 	    &Apache::loncommon::end_data_table()."\n";
  899:     }
  900:     return $string.&show_grading_menu_form($symb);
  901: }
  902: 
  903: #--- This is called by a number of programs.
  904: #--- Called from the Grading Menu - View/Grade an individual student
  905: #--- Also called directly when one clicks on the subm button 
  906: #    on the problem page.
  907: sub listStudents {
  908:     my ($request) = shift;
  909: 
  910:     my ($symb) = &get_symb($request);
  911:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
  912:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
  913:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
  914:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
  915:     my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  916:     my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
  917:     $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
  918: 	&Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
  919: 
  920:     my $result='<h3><span class="LC_info">&nbsp;'
  921: 	.&mt("$viewgrade Submissions for a Student or a Group of Students")
  922: 	.'</span></h3>';
  923: 
  924:     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($symb,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
  925: 
  926:     my %js_lt = &Apache::lonlocal::texthash (
  927: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
  928: 		'single'   => 'Please select the student before clicking on the Next button.',
  929: 	     );
  930:     &js_escape(\%js_lt);
  931:     $request->print(<<LISTJAVASCRIPT);
  932: <script type="text/javascript" language="javascript">
  933:     function checkSelect(checkBox) {
  934: 	var ctr=0;
  935: 	var sense="";
  936: 	if (checkBox.length > 1) {
  937: 	    for (var i=0; i<checkBox.length; i++) {
  938: 		if (checkBox[i].checked) {
  939: 		    ctr++;
  940: 		}
  941: 	    }
  942: 	    sense = '$js_lt{'multiple'}';
  943: 	} else {
  944: 	    if (checkBox.checked) {
  945: 		ctr = 1;
  946: 	    }
  947: 	    sense = '$js_lt{'single'}';
  948: 	}
  949: 	if (ctr == 0) {
  950: 	    alert(sense);
  951: 	    return false;
  952: 	}
  953: 	document.gradesub.submit();
  954:     }
  955: 
  956:     function reLoadList(formname) {
  957: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
  958: 	formname.command.value = 'submission';
  959: 	formname.submit();
  960:     }
  961: </script>
  962: LISTJAVASCRIPT
  963: 
  964:     &commonJSfunctions($request);
  965:     $request->print($result);
  966: 
  967:     my $checkhdgrade = ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked="checked"' : '';
  968:     my $checklastsub = $checkhdgrade eq '' ? 'checked="checked"' : '';
  969:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
  970: 	"\n".$table;
  971: 	
  972:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
  973:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
  974:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
  975:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
  976:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
  977:                   .&Apache::lonhtmlcommon::row_closure();
  978:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
  979:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
  980:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
  981:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
  982:                   .&Apache::lonhtmlcommon::row_closure();
  983: 
  984:     my $submission_options;
  985:     if ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
  986: 	$submission_options.=
  987: 	    '<label><input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> '.&mt('essay part only').' </label>'."\n";
  988:     }
  989:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  990:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
  991:     $env{'form.Status'} = $saveStatus;
  992:     $submission_options.=
  993:         '<span class="LC_nobreak">'.
  994:         '<label><input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> '.
  995:         &mt('last submission only').' </label></span>'."\n".
  996:         '<span class="LC_nobreak">'.
  997:         '<label><input type="radio" name="lastSub" value="last" /> '.
  998:         &mt('last submission &amp; parts info').' </label></span>'."\n".
  999:         '<span class="LC_nobreak">'.
 1000:         '<label><input type="radio" name="lastSub" value="datesub" /> '.
 1001:         &mt('by dates and submissions').'</label></span>'."\n".
 1002:         '<span class="LC_nobreak">'.
 1003:         '<label><input type="radio" name="lastSub" value="all" /> '.
 1004:         &mt('all details').'</label></span>';
 1005:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
 1006:                   .$submission_options
 1007:                   .&Apache::lonhtmlcommon::row_closure();
 1008: 
 1009:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
 1010:                   .'<select name="increment">'
 1011:                   .'<option value="1">'.&mt('Whole Points').'</option>'
 1012:                   .'<option value=".5">'.&mt('Half Points').'</option>'
 1013:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
 1014:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
 1015:                   .'</select>'
 1016:                   .&Apache::lonhtmlcommon::row_closure();
 1017: 
 1018:     $gradeTable .= 
 1019:         &build_section_inputs().
 1020: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
 1021: 	'<input type="hidden" name="handgrade"   value="'.$env{'form.handgrade'}.'" /><br />'."\n".
 1022: 	'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" /><br />'."\n".
 1023: 	'<input type="hidden" name="saveState"   value="'.$env{'form.saveState'}.'" />'."\n".
 1024: 	'<input type="hidden" name="probTitle"   value="'.$env{'form.probTitle'}.'" />'."\n".
 1025: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 1026: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
 1027: 
 1028:     if (exists($env{'form.gradingMenu'}) && exists($env{'form.Status'})) {
 1029: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
 1030:     } else {
 1031:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
 1032:                       .&Apache::lonhtmlcommon::StatusOptions(
 1033:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
 1034:                       .&Apache::lonhtmlcommon::row_closure();
 1035:     }
 1036: 
 1037:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
 1038:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
 1039:                   .&Apache::lonhtmlcommon::row_closure(1)
 1040:                   .&Apache::lonhtmlcommon::end_pick_box();
 1041: 
 1042:     $gradeTable .= '<p>'
 1043:                   .&mt('To '.lc($viewgrade)." 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"
 1044:                   .'<input type="hidden" name="command" value="processGroup" />'
 1045:                   .'</p>';
 1046: 
 1047: # checkall buttons
 1048:     $gradeTable.=&check_script('gradesub', 'stuinfo');
 1049:     $gradeTable.='<input type="button" '."\n".
 1050:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
 1051:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
 1052:     $gradeTable.=&check_buttons();
 1053:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
 1054:     $gradeTable.= &Apache::loncommon::start_data_table().
 1055: 	&Apache::loncommon::start_data_table_header_row();
 1056:     my $loop = 0;
 1057:     while ($loop < 2) {
 1058: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
 1059: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
 1060: 	if ($env{'form.showgrading'} eq 'yes' 
 1061: 	    && $submitonly ne 'queued'
 1062: 	    && $submitonly ne 'all') {
 1063: 	    foreach my $part (sort(@$partlist)) {
 1064: 		my $display_part=
 1065: 		    &get_display_part((split(/_/,$part))[0],$symb);
 1066: 		$gradeTable.=
 1067: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
 1068: 	    }
 1069: 	} elsif ($submitonly eq 'queued') {
 1070: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
 1071: 	}
 1072: 	$loop++;
 1073: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
 1074:     }
 1075:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
 1076: 
 1077:     my $ctr = 0;
 1078:     foreach my $student (sort 
 1079: 			 {
 1080: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 1081: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 1082: 			     }
 1083: 			     return $a cmp $b;
 1084: 			 }
 1085: 			 (keys(%$fullname))) {
 1086: 	my ($uname,$udom) = split(/:/,$student);
 1087: 
 1088: 	my %status = ();
 1089: 
 1090: 	if ($submitonly eq 'queued') {
 1091: 	    my %queue_status = 
 1092: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 1093: 							$udom,$uname);
 1094: 	    next if (!defined($queue_status{'gradingqueue'}));
 1095: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
 1096: 	}
 1097: 
 1098: 	if ($env{'form.showgrading'} eq 'yes' 
 1099: 	    && $submitonly ne 'queued'
 1100: 	    && $submitonly ne 'all') {
 1101: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
 1102: 	    my $submitted = 0;
 1103: 	    my $graded = 0;
 1104: 	    my $incorrect = 0;
 1105: 	    foreach (keys(%status)) {
 1106: 		$submitted = 1 if ($status{$_} ne 'nothing');
 1107: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
 1108: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
 1109: 		
 1110: 		my ($foo,$partid,$foo1) = split(/\./,$_);
 1111: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 1112: 		    $submitted = 0;
 1113: 		    my ($part)=split(/\./,$partid);
 1114: 		    $gradeTable.='<input type="hidden" name="'.
 1115: 			$student.':'.$part.':submitted_by" value="'.
 1116: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
 1117: 		}
 1118: 	    }
 1119: 	    
 1120: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 1121: 				     $submitonly eq 'incorrect' ||
 1122: 				     $submitonly eq 'graded'));
 1123: 	    next if (!$graded && ($submitonly eq 'graded'));
 1124: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 1125: 	}
 1126: 
 1127: 	$ctr++;
 1128: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
 1129:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
 1130: 	if ( $perm{'vgr'} eq 'F' ) {
 1131: 	    if ($ctr%2 ==1) {
 1132: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
 1133: 	    }
 1134: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
 1135:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
 1136:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
 1137: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
 1138: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
 1139: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
 1140: 
 1141: 	    if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
 1142: 		foreach (sort(keys(%status))) {
 1143: 		    next if ($_ =~ /^resource.*?submitted_by$/);
 1144: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
 1145: 		}
 1146: 	    }
 1147: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
 1148: 	    if ($ctr%2 ==0) {
 1149: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
 1150: 	    }
 1151: 	}
 1152:     }
 1153:     if ($ctr%2 ==1) {
 1154: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
 1155: 	    if ($env{'form.showgrading'} eq 'yes' 
 1156: 		&& $submitonly ne 'queued'
 1157: 		&& $submitonly ne 'all') {
 1158: 		foreach (@$partlist) {
 1159: 		    $gradeTable.='<td>&nbsp;</td>';
 1160: 		}
 1161: 	    } elsif ($submitonly eq 'queued') {
 1162: 		$gradeTable.='<td>&nbsp;</td>';
 1163: 	    }
 1164: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
 1165:     }
 1166: 
 1167:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
 1168:         '<input type="button" '.
 1169:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
 1170:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
 1171:     if ($ctr == 0) {
 1172: 	my $num_students=(scalar(keys(%$fullname)));
 1173: 	if ($num_students eq 0) {
 1174: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
 1175: 	} else {
 1176: 	    my $submissions='submissions';
 1177: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
 1178: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 1179: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 1180: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
 1181: 		&mt('No '.$submissions.' found for this resource for any students. ([quant,_1,student] checked for '.$submissions.')',
 1182: 		    $num_students).
 1183: 		'</span><br />';
 1184: 	}
 1185:     } elsif ($ctr == 1) {
 1186: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
 1187:     }
 1188:     $gradeTable.=&show_grading_menu_form($symb);
 1189:     $request->print($gradeTable);
 1190:     return '';
 1191: }
 1192: 
 1193: #---- Called from the listStudents routine
 1194: 
 1195: sub check_script {
 1196:     my ($form, $type)=@_;
 1197:     my $chkallscript='<script type="text/javascript">
 1198:     function checkall() {
 1199:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1200:             ele = document.forms.'.$form.'.elements[i];
 1201:             if (ele.name == "'.$type.'") {
 1202:             document.forms.'.$form.'.elements[i].checked=true;
 1203:                                        }
 1204:         }
 1205:     }
 1206: 
 1207:     function checksec() {
 1208:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1209:             ele = document.forms.'.$form.'.elements[i];
 1210:            string = document.forms.'.$form.'.chksec.value;
 1211:            if
 1212:           (ele.value.indexOf(":::SECTION"+string)>0) {
 1213:               document.forms.'.$form.'.elements[i].checked=true;
 1214:             }
 1215:         }
 1216:     }
 1217: 
 1218: 
 1219:     function uncheckall() {
 1220:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1221:             ele = document.forms.'.$form.'.elements[i];
 1222:             if (ele.name == "'.$type.'") {
 1223:             document.forms.'.$form.'.elements[i].checked=false;
 1224:                                        }
 1225:         }
 1226:     }
 1227: 
 1228: </script>'."\n";
 1229:     return $chkallscript;
 1230: }
 1231: 
 1232: sub check_buttons {
 1233:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
 1234:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
 1235:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
 1236:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
 1237:     return $buttons;
 1238: }
 1239: 
 1240: #     Displays the submissions for one student or a group of students
 1241: sub processGroup {
 1242:     my ($request)  = shift;
 1243:     my $ctr        = 0;
 1244:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1245:     my $total      = scalar(@stuchecked)-1;
 1246: 
 1247:     foreach my $student (@stuchecked) {
 1248: 	my ($uname,$udom,$fullname) = split(/:/,$student);
 1249: 	$env{'form.student'}        = $uname;
 1250: 	$env{'form.userdom'}        = $udom;
 1251: 	$env{'form.fullname'}       = $fullname;
 1252: 	&submission($request,$ctr,$total);
 1253: 	$ctr++;
 1254:     }
 1255:     return '';
 1256: }
 1257: 
 1258: #------------------------------------------------------------------------------------
 1259: #
 1260: #-------------------------- Next few routines handles grading by student, essentially
 1261: #                           handles essay response type problem/part
 1262: #
 1263: #--- Javascript to handle the submission page functionality ---
 1264: sub sub_page_js {
 1265:     my $request = shift;
 1266:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 1267:     &js_escape(\$alertmsg);
 1268:     $request->print(<<SUBJAVASCRIPT);
 1269: <script type="text/javascript" language="javascript">
 1270:     function updateRadio(formname,id,weight) {
 1271: 	var gradeBox = formname["GD_BOX"+id];
 1272: 	var radioButton = formname["RADVAL"+id];
 1273: 	var oldpts = formname["oldpts"+id].value;
 1274: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
 1275: 	gradeBox.value = pts;
 1276: 	var resetbox = false;
 1277: 	if (isNaN(pts) || pts < 0) {
 1278: 	    alert("$alertmsg"+pts);
 1279: 	    for (var i=0; i<radioButton.length; i++) {
 1280: 		if (radioButton[i].checked) {
 1281: 		    gradeBox.value = i;
 1282: 		    resetbox = true;
 1283: 		}
 1284: 	    }
 1285: 	    if (!resetbox) {
 1286: 		formtextbox.value = "";
 1287: 	    }
 1288: 	    return;
 1289: 	}
 1290: 
 1291: 	if (pts > weight) {
 1292: 	    var resp = confirm("You entered a value ("+pts+
 1293: 			       ") greater than the weight for the part. Accept?");
 1294: 	    if (resp == false) {
 1295: 		gradeBox.value = oldpts;
 1296: 		return;
 1297: 	    }
 1298: 	}
 1299: 
 1300: 	for (var i=0; i<radioButton.length; i++) {
 1301: 	    radioButton[i].checked=false;
 1302: 	    if (pts == i && pts != "") {
 1303: 		radioButton[i].checked=true;
 1304: 	    }
 1305: 	}
 1306: 	updateSelect(formname,id);
 1307: 	formname["stores"+id].value = "0";
 1308:     }
 1309: 
 1310:     function writeBox(formname,id,pts) {
 1311: 	var gradeBox = formname["GD_BOX"+id];
 1312: 	if (checkSolved(formname,id) == 'update') {
 1313: 	    gradeBox.value = pts;
 1314: 	} else {
 1315: 	    var oldpts = formname["oldpts"+id].value;
 1316: 	    gradeBox.value = oldpts;
 1317: 	    var radioButton = formname["RADVAL"+id];
 1318: 	    for (var i=0; i<radioButton.length; i++) {
 1319: 		radioButton[i].checked=false;
 1320: 		if (i == oldpts) {
 1321: 		    radioButton[i].checked=true;
 1322: 		}
 1323: 	    }
 1324: 	}
 1325: 	formname["stores"+id].value = "0";
 1326: 	updateSelect(formname,id);
 1327: 	return;
 1328:     }
 1329: 
 1330:     function clearRadBox(formname,id) {
 1331: 	if (checkSolved(formname,id) == 'noupdate') {
 1332: 	    updateSelect(formname,id);
 1333: 	    return;
 1334: 	}
 1335: 	gradeSelect = formname["GD_SEL"+id];
 1336: 	for (var i=0; i<gradeSelect.length; i++) {
 1337: 	    if (gradeSelect[i].selected) {
 1338: 		var selectx=i;
 1339: 	    }
 1340: 	}
 1341: 	var stores = formname["stores"+id];
 1342: 	if (selectx == stores.value) { return };
 1343: 	var gradeBox = formname["GD_BOX"+id];
 1344: 	gradeBox.value = "";
 1345: 	var radioButton = formname["RADVAL"+id];
 1346: 	for (var i=0; i<radioButton.length; i++) {
 1347: 	    radioButton[i].checked=false;
 1348: 	}
 1349: 	stores.value = selectx;
 1350:     }
 1351: 
 1352:     function checkSolved(formname,id) {
 1353: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
 1354: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
 1355: 	    if (!reply) {return "noupdate";}
 1356: 	    formname.overRideScore.value = 'yes';
 1357: 	}
 1358: 	return "update";
 1359:     }
 1360: 
 1361:     function updateSelect(formname,id) {
 1362: 	formname["GD_SEL"+id][0].selected = true;
 1363: 	return;
 1364:     }
 1365: 
 1366: //=========== Check that a point is assigned for all the parts  ============
 1367:     function checksubmit(formname,val,total,parttot) {
 1368: 	formname.gradeOpt.value = val;
 1369: 	if (val == "Save & Next") {
 1370: 	    for (i=0;i<=total;i++) {
 1371: 		for (j=0;j<parttot;j++) {
 1372: 		    var partid = formname["partid"+i+"_"+j].value;
 1373: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1374: 			var points = formname["GD_BOX"+i+"_"+partid].value;
 1375: 			if (points == "") {
 1376: 			    var name = formname["name"+i].value;
 1377: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
 1378: 			    var resp = confirm("You did not assign a score for "+studentID+
 1379: 					       ", part "+partid+". Continue?");
 1380: 			    if (resp == false) {
 1381: 				formname["GD_BOX"+i+"_"+partid].focus();
 1382: 				return false;
 1383: 			    }
 1384: 			}
 1385: 		    }
 1386: 		}
 1387: 	    }
 1388: 	}
 1389: 	if (val == "Grade Student") {
 1390: 	    formname.showgrading.value = "yes";
 1391: 	    if (formname.Status.value == "") {
 1392: 		formname.Status.value = "Active";
 1393: 	    }
 1394: 	    formname.studentNo.value = total;
 1395: 	}
 1396: 	formname.submit();
 1397:     }
 1398: 
 1399: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
 1400:     function checkSubmitPage(formname,total) {
 1401: 	noscore = new Array(100);
 1402: 	var ptr = 0;
 1403: 	for (i=1;i<total;i++) {
 1404: 	    var partid = formname["q_"+i].value;
 1405: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1406: 		var points = formname["GD_BOX"+i+"_"+partid].value;
 1407: 		var status = formname["solved"+i+"_"+partid].value;
 1408: 		if (points == "" && status != "correct_by_student") {
 1409: 		    noscore[ptr] = i;
 1410: 		    ptr++;
 1411: 		}
 1412: 	    }
 1413: 	}
 1414: 	if (ptr != 0) {
 1415: 	    var sense = ptr == 1 ? ": " : "s: ";
 1416: 	    var prolist = "";
 1417: 	    if (ptr == 1) {
 1418: 		prolist = noscore[0];
 1419: 	    } else {
 1420: 		var i = 0;
 1421: 		while (i < ptr-1) {
 1422: 		    prolist += noscore[i]+", ";
 1423: 		    i++;
 1424: 		}
 1425: 		prolist += "and "+noscore[i];
 1426: 	    }
 1427: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
 1428: 	    if (resp == false) {
 1429: 		return false;
 1430: 	    }
 1431: 	}
 1432: 
 1433: 	formname.submit();
 1434:     }
 1435: </script>
 1436: SUBJAVASCRIPT
 1437: }
 1438: 
 1439: #--- javascript for essay type problem --
 1440: sub sub_page_kw_js {
 1441:     my $request = shift;
 1442:     my $iconpath = $request->dir_config('lonIconsURL');
 1443:     &commonJSfunctions($request);
 1444: 
 1445:     my $inner_js_msg_central=<<INNERJS;
 1446:     <script text="text/javascript">
 1447:     function checkInput() {
 1448:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
 1449:       var nmsg   = opener.document.SCORE.savemsgN.value;
 1450:       var usrctr = document.msgcenter.usrctr.value;
 1451:       var newval = opener.document.SCORE["newmsg"+usrctr];
 1452:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
 1453: 
 1454:       var msgchk = "";
 1455:       if (document.msgcenter.subchk.checked) {
 1456:          msgchk = "msgsub,";
 1457:       }
 1458:       var includemsg = 0;
 1459:       for (var i=1; i<=nmsg; i++) {
 1460:           var opnmsg = opener.document.SCORE["savemsg"+i];
 1461:           var frmmsg = document.msgcenter["msg"+i];
 1462:           opnmsg.value = opener.checkEntities(frmmsg.value);
 1463:           var showflg = opener.document.SCORE["shownOnce"+i];
 1464:           showflg.value = "1";
 1465:           var chkbox = document.msgcenter["msgn"+i];
 1466:           if (chkbox.checked) {
 1467:              msgchk += "savemsg"+i+",";
 1468:              includemsg = 1;
 1469:           }
 1470:       }
 1471:       if (document.msgcenter.newmsgchk.checked) {
 1472:          msgchk += "newmsg"+usrctr;
 1473:          includemsg = 1;
 1474:       }
 1475:       imgformname = opener.document.SCORE["mailicon"+usrctr];
 1476:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
 1477:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
 1478:       includemsg.value = msgchk;
 1479: 
 1480:       self.close()
 1481: 
 1482:     }
 1483:     </script>
 1484: INNERJS
 1485: 
 1486:     my $inner_js_highlight_central=<<INNERJS;
 1487:  <script type="text/javascript">
 1488:     function updateChoice(flag) {
 1489:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
 1490:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
 1491:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
 1492:       opener.document.SCORE.refresh.value = "on";
 1493:       if (opener.document.SCORE.keywords.value!=""){
 1494:          opener.document.SCORE.submit();
 1495:       }
 1496:       self.close()
 1497:     }
 1498: </script>
 1499: INNERJS
 1500: 
 1501:     my $start_page_msg_central = 
 1502:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 1503: 				       {'js_ready'  => 1,
 1504: 					'only_body' => 1,
 1505: 					'bgcolor'   =>'#FFFFFF',});
 1506:     my $end_page_msg_central = 
 1507: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1508: 
 1509: 
 1510:     my $start_page_highlight_central = 
 1511:         &Apache::loncommon::start_page('Highlight Central',
 1512: 				       $inner_js_highlight_central,
 1513: 				       {'js_ready'  => 1,
 1514: 					'only_body' => 1,
 1515: 					'bgcolor'   =>'#FFFFFF',});
 1516:     my $end_page_highlight_central = 
 1517: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1518: 
 1519:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
 1520:     $docopen=~s/^document\.//;
 1521:     my %js_lt = &Apache::lonlocal::texthash(
 1522:                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
 1523:                 plse => 'Please select a word or group of words from document and then click this link.',
 1524:                 adds => 'Add selection to keyword list? Edit if desired.',
 1525:                 col1 => 'red',
 1526:                 col2 => 'green',
 1527:                 col3 => 'blue',
 1528:                 siz1 => 'normal',
 1529:                 siz2 => '+1',
 1530:                 siz3 => '+2',
 1531:                 sty1 => 'normal',
 1532:                 sty2 => 'italic',
 1533:                 sty3 => 'bold',
 1534:              );
 1535:     my %html_js_lt = &Apache::lonlocal::texthash(
 1536:                 comp => 'Compose Message for: ',
 1537:                 incl => 'Include',
 1538:                 type => 'Type',
 1539:                 subj => 'Subject',
 1540:                 mesa => 'Message',
 1541:                 new  => 'New',
 1542:                 save => 'Save',
 1543:                 canc => 'Cancel',
 1544:                 kehi => 'Keyword Highlight Options',
 1545:                 txtc => 'Text Color',
 1546:                 font => 'Font Size',
 1547:                 fnst => 'Font Style',
 1548:              );
 1549:     &js_escape(\%js_lt);
 1550:     &html_escape(\%html_js_lt);
 1551:     &js_escape(\%html_js_lt);
 1552:     $request->print(<<SUBJAVASCRIPT);
 1553: <script type="text/javascript" language="javascript">
 1554: 
 1555: //===================== Show list of keywords ====================
 1556:   function keywords(formname) {
 1557:     var nret = prompt("$js_lt{'keyw'}",formname.keywords.value);
 1558:     if (nret==null) return;
 1559:     formname.keywords.value = nret;
 1560: 
 1561:     if (formname.keywords.value != "") {
 1562: 	formname.refresh.value = "on";
 1563: 	formname.submit();
 1564:     }
 1565:     return;
 1566:   }
 1567: 
 1568: //===================== Script to view submitted by ==================
 1569:   function viewSubmitter(submitter) {
 1570:     document.SCORE.refresh.value = "on";
 1571:     document.SCORE.NCT.value = "1";
 1572:     document.SCORE.unamedom0.value = submitter;
 1573:     document.SCORE.submit();
 1574:     return;
 1575:   }
 1576: 
 1577: //===================== Script to add keyword(s) ==================
 1578:   function getSel() {
 1579:     if (document.getSelection) txt = document.getSelection();
 1580:     else if (document.selection) txt = document.selection.createRange().text;
 1581:     else return;
 1582:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
 1583:     if (cleantxt=="") {
 1584: 	alert("$js_lt{'plse'}");
 1585: 	return;
 1586:     }
 1587:     var nret = prompt("$js_lt{'adds'}",cleantxt);
 1588:     if (nret==null) return;
 1589:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
 1590:     if (document.SCORE.keywords.value != "") {
 1591: 	document.SCORE.refresh.value = "on";
 1592: 	document.SCORE.submit();
 1593:     }
 1594:     return;
 1595:   }
 1596: 
 1597: //====================== Script for composing message ==============
 1598:    // preload images
 1599:    img1 = new Image();
 1600:    img1.src = "$iconpath/mailbkgrd.gif";
 1601:    img2 = new Image();
 1602:    img2.src = "$iconpath/mailto.gif";
 1603: 
 1604:   function msgCenter(msgform,usrctr,fullname) {
 1605:     var Nmsg  = msgform.savemsgN.value;
 1606:     savedMsgHeader(Nmsg,usrctr,fullname);
 1607:     var subject = msgform.msgsub.value;
 1608:     var msgchk = document.SCORE["includemsg"+usrctr].value;
 1609:     re = /msgsub/;
 1610:     var shwsel = "";
 1611:     if (re.test(msgchk)) { shwsel = "checked" }
 1612:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
 1613:     displaySubject(checkEntities(subject),shwsel);
 1614:     for (var i=1; i<=Nmsg; i++) {
 1615: 	var testmsg = "savemsg"+i+",";
 1616: 	re = new RegExp(testmsg,"g");
 1617: 	shwsel = "";
 1618: 	if (re.test(msgchk)) { shwsel = "checked" }
 1619: 	var message = document.SCORE["savemsg"+i].value;
 1620: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
 1621: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
 1622: 	                                   //any &lt; is already converted to <, etc. However, only once!!
 1623:     }
 1624:     newmsg = document.SCORE["newmsg"+usrctr].value;
 1625:     shwsel = "";
 1626:     re = /newmsg/;
 1627:     if (re.test(msgchk)) { shwsel = "checked" }
 1628:     newMsg(newmsg,shwsel);
 1629:     msgTail(); 
 1630:     return;
 1631:   }
 1632: 
 1633:   function checkEntities(strx) {
 1634:     if (strx.length == 0) return strx;
 1635:     var orgStr = ["&", "<", ">", '"']; 
 1636:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
 1637:     var counter = 0;
 1638:     while (counter < 4) {
 1639: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
 1640: 	counter++;
 1641:     }
 1642:     return strx;
 1643:   }
 1644: 
 1645:   function strReplace(strx, orgStr, newStr) {
 1646:     return strx.split(orgStr).join(newStr);
 1647:   }
 1648: 
 1649:   function savedMsgHeader(Nmsg,usrctr,fullname) {
 1650:     var height = 70*Nmsg+250;
 1651:     if (height > 600) {
 1652: 	height = 600;
 1653:     }
 1654:     var xpos = (screen.width-600)/2;
 1655:     xpos = (xpos < 0) ? '0' : xpos;
 1656:     var ypos = (screen.height-height)/2-30;
 1657:     ypos = (ypos < 0) ? '0' : ypos;
 1658: 
 1659:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars=yes,screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
 1660:     pWin.focus();
 1661:     pDoc = pWin.document;
 1662:     pDoc.$docopen;
 1663:     pDoc.write('$start_page_msg_central');
 1664: 
 1665:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
 1666:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
 1667:     pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$html_js_lt{'comp'}\"+fullname+\"<\\/span><\\/h3><br /><br />");
 1668: 
 1669:     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1670:     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1671:     pDoc.write("<td><b>$html_js_lt{'type'}<\\/b><\\/td><td><b>$html_js_lt{'incl'}<\\/b><\\/td><td><b>$html_js_lt{'mesa'}<\\/td><\\/tr>");
 1672: }
 1673:     function displaySubject(msg,shwsel) {
 1674:     pDoc = pWin.document;
 1675:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1676:     pDoc.write("<td>$html_js_lt{'subj'}<\\/td>");
 1677:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1678:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 1679: }
 1680: 
 1681:   function displaySavedMsg(ctr,msg,shwsel) {
 1682:     pDoc = pWin.document;
 1683:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1684:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
 1685:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1686:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 1687: }
 1688: 
 1689:   function newMsg(newmsg,shwsel) {
 1690:     pDoc = pWin.document;
 1691:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1692:     pDoc.write("<td align=\\"center\\">$html_js_lt{'new'}<\\/td>");
 1693:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1694:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 1695: }
 1696: 
 1697:   function msgTail() {
 1698:     pDoc = pWin.document;
 1699:     pDoc.write("<\\/table>");
 1700:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1701:     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
 1702:     pDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1703:     pDoc.write("<\\/form>");
 1704:     pDoc.write('$end_page_msg_central');
 1705:     pDoc.close();
 1706: }
 1707: 
 1708: //====================== Script for keyword highlight options ==============
 1709:   function kwhighlight() {
 1710:     var kwclr    = document.SCORE.kwclr.value;
 1711:     var kwsize   = document.SCORE.kwsize.value;
 1712:     var kwstyle  = document.SCORE.kwstyle.value;
 1713:     var redsel = "";
 1714:     var grnsel = "";
 1715:     var blusel = "";
 1716:     var txtcol1 = "$js_lt{'col1'}";
 1717:     var txtcol2 = "$js_lt{'col2'}";
 1718:     var txtcol3 = "$js_lt{'col3'}";
 1719:     var txtsiz1 = "$js_lt{'siz1'}";
 1720:     var txtsiz2 = "$js_lt{'siz2'}";
 1721:     var txtsiz3 = "$js_lt{'siz3'}";
 1722:     var txtsty1 = "$js_lt{'sty1'}";
 1723:     var txtsty2 = "$js_lt{'sty2'}";
 1724:     var txtsty3 = "$js_lt{'sty3'}";
 1725:     if (kwclr=="red")   {var redsel="checked='checked'"};
 1726:     if (kwclr=="green") {var grnsel="checked='checked'"};
 1727:     if (kwclr=="blue")  {var blusel="checked='checked'"};
 1728:     var sznsel = "";
 1729:     var sz1sel = "";
 1730:     var sz2sel = "";
 1731:     if (kwsize=="0")  {var sznsel="checked='checked'"};
 1732:     if (kwsize=="+1") {var sz1sel="checked='checked'"};
 1733:     if (kwsize=="+2") {var sz2sel="checked='checked'"};
 1734:     var synsel = "";
 1735:     var syisel = "";
 1736:     var sybsel = "";
 1737:     if (kwstyle=="")    {var synsel="checked='checked'"};
 1738:     if (kwstyle=="<i>") {var syisel="checked='checked'"};
 1739:     if (kwstyle=="<b>") {var sybsel="checked='checked'"};
 1740:     highlightCentral();
 1741:     highlightbody('red',txtcol1,redsel,'0',txtsiz1,sznsel,'',txtsty1,synsel);
 1742:     highlightbody('green',txtcol2,grnsel,'+1',txtsiz2,sz1sel,'<i>',txtsty2,syisel);
 1743:     highlightbody('blue',txtcol3,blusel,'+2',txtsiz3,sz2sel,'<b>',txtsty3,sybsel);
 1744:     highlightend();
 1745:     return;
 1746:   }
 1747: 
 1748:   function highlightCentral() {
 1749: //    if (window.hwdWin) window.hwdWin.close();
 1750:     var xpos = (screen.width-400)/2;
 1751:     xpos = (xpos < 0) ? '0' : xpos;
 1752:     var ypos = (screen.height-330)/2-30;
 1753:     ypos = (ypos < 0) ? '0' : ypos;
 1754: 
 1755:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
 1756:     hwdWin.focus();
 1757:     var hDoc = hwdWin.document;
 1758:     hDoc.$docopen;
 1759:     hDoc.write('$start_page_highlight_central');
 1760:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
 1761:     hDoc.write("<h1>$html_js_lt{'kehi'}<\\/h1>");
 1762: 
 1763:     hDoc.write('<table border="0" width="100%"><tr style="background-color:#A1D676">');
 1764:     hDoc.write("<th>$html_js_lt{'txtc'}<\\/th><th>$html_js_lt{'font'}<\\/th><th>$html_js_lt{'fnst'}<\\/th><\\/tr>");
 1765:   }
 1766: 
 1767:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
 1768:     var hDoc = hwdWin.document;
 1769:     hDoc.write("<tr>");
 1770:     hDoc.write("<td align=\\"left\\">");
 1771:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+" \\/>&nbsp;"+clrtxt+"<\\/td>");
 1772:     hDoc.write("<td align=\\"left\\">");
 1773:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+" \\/>&nbsp;"+sztxt+"<\\/td>");
 1774:     hDoc.write("<td align=\\"left\\">");
 1775:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+" \\/>&nbsp;"+sytxt+"<\\/td>");
 1776:     hDoc.write("<\\/tr>");
 1777:   }
 1778: 
 1779:   function highlightend() { 
 1780:     var hDoc = hwdWin.document;
 1781:     hDoc.write("<\\/table><br \\/>");
 1782:     hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\" \\/>&nbsp;&nbsp;");
 1783:     hDoc.write("<input type=\\"button\\" value=\\"$html_js_lt{'canc'}\\" onclick=\\"self.close()\\" \\/><br /><br />");
 1784:     hDoc.write("<\\/form>");
 1785:     hDoc.write('$end_page_highlight_central');
 1786:     hDoc.close();
 1787:   }
 1788: 
 1789: </script>
 1790: SUBJAVASCRIPT
 1791: }
 1792: 
 1793: sub get_increment {
 1794:     my $increment = $env{'form.increment'};
 1795:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
 1796:         $increment != .1) {
 1797:         $increment = 1;
 1798:     }
 1799:     return $increment;
 1800: }
 1801: 
 1802: sub gradeBox_start {
 1803:     return (
 1804:         &Apache::loncommon::start_data_table()
 1805:        .&Apache::loncommon::start_data_table_header_row()
 1806:        .'<th>'.&mt('Part').'</th>'
 1807:        .'<th>'.&mt('Points').'</th>'
 1808:        .'<th>&nbsp;</th>'
 1809:        .'<th>'.&mt('Assign Grade').'</th>'
 1810:        .'<th>'.&mt('Weight').'</th>'
 1811:        .'<th>'.&mt('Grade Status').'</th>'
 1812:        .&Apache::loncommon::end_data_table_header_row()
 1813:     );
 1814: }
 1815: 
 1816: sub gradeBox_end {
 1817:     return (
 1818:         &Apache::loncommon::end_data_table()
 1819:     );
 1820: }
 1821: #--- displays the grading box, used in essay type problem and grading by page/sequence
 1822: sub gradeBox {
 1823:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
 1824:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1825: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 1826:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
 1827:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
 1828:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
 1829:     $wgt       = ($wgt > 0 ? $wgt : '1');
 1830:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 1831: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
 1832:     my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
 1833:     my $display_part= &get_display_part($partid,$symb);
 1834:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 1835: 				       [$partid]);
 1836:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
 1837:     if ($last_resets{$partid}) {
 1838:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
 1839:     }
 1840:     my $result=&Apache::loncommon::start_data_table_row();
 1841:     my $ctr = 0;
 1842:     my $thisweight = 0;
 1843:     my $increment = &get_increment();
 1844: 
 1845:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
 1846:     while ($thisweight<=$wgt) {
 1847: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
 1848:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
 1849: 	    $thisweight.')" value="'.$thisweight.'" '.
 1850: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
 1851: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 1852:         $thisweight += $increment;
 1853: 	$ctr++;
 1854:     }
 1855:     $radio.='</tr></table>';
 1856: 
 1857:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
 1858: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
 1859: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
 1860: 	$wgt.')" /></td>'."\n";
 1861:     $line.='<td>/'.$wgt.' '.$wgtmsg.
 1862: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
 1863: 	' </td>'."\n";
 1864:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
 1865: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
 1866:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
 1867: 	$line.='<option></option>'.
 1868: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
 1869:     } else {
 1870: 	$line.='<option selected="selected"></option>'.
 1871: 	    '<option value="excused" >'.&mt('excused').'</option>';
 1872:     }
 1873:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
 1874: 
 1875: 
 1876:     $result .= 
 1877: 	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
 1878:     $result.=&Apache::loncommon::end_data_table_row().'<td colspan="6">';
 1879:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 1880: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 1881: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
 1882: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
 1883:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
 1884:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
 1885:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
 1886:         $aggtries.'" />'."\n";
 1887:     my $res_error;
 1888:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
 1889:     $result.='</td>'.&Apache::loncommon::end_data_table_row();
 1890:     if ($res_error) {
 1891:         return &navmap_errormsg();
 1892:     }
 1893:     return $result;
 1894: }
 1895: 
 1896: sub handback_box {
 1897:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error) = @_;
 1898:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
 1899:     my (@respids);
 1900:     my @part_response_id = &flatten_responseType($responseType);
 1901:     foreach my $part_response_id (@part_response_id) {
 1902:     	my ($part,$resp) = @{ $part_response_id };
 1903:         if ($part eq $partid) {
 1904:             push(@respids,$resp);
 1905:         }
 1906:     }
 1907:     my $result;
 1908:     foreach my $respid (@respids) {
 1909: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 1910: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 1911: 	next if (!@$files);
 1912: 	my $file_counter = 0;
 1913: 	foreach my $file (@$files) {
 1914: 	    if ($file =~ /\/portfolio\//) {
 1915:                 $file_counter++;
 1916:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
 1917:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
 1918:     	        $file_disp = "$name.$ext";
 1919:     	        $file = $file_path.$file_disp;
 1920:     	        $result.=&mt('Return commented version of [_1] to student.',
 1921:     			 '<span class="LC_filename">'.$file_disp.'</span>');
 1922:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
 1923:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
 1924: 	    }
 1925: 	}
 1926:         if ($file_counter) {
 1927:             $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
 1928:                        '<span class="LC_info">'.
 1929:                        '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
 1930:         }
 1931:     }
 1932:     return $result;    
 1933: }
 1934: 
 1935: sub show_problem {
 1936:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
 1937:     my $rendered;
 1938:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
 1939:     &Apache::lonxml::remember_problem_counter();
 1940:     if ($mode eq 'both' or $mode eq 'text') {
 1941: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
 1942: 						       $env{'request.course.id'},
 1943: 						       undef,\%form);
 1944:     }
 1945:     if ($removeform) {
 1946: 	$rendered=~s|<form(.*?)>||g;
 1947: 	$rendered=~s|</form>||g;
 1948: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
 1949:     }
 1950:     my $companswer;
 1951:     if ($mode eq 'both' or $mode eq 'answer') {
 1952: 	&Apache::lonxml::restore_problem_counter();
 1953: 	$companswer=
 1954: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
 1955: 						    $env{'request.course.id'},
 1956: 						    %form);
 1957:     }
 1958:     if ($removeform) {
 1959: 	$companswer=~s|<form(.*?)>||g;
 1960: 	$companswer=~s|</form>||g;
 1961: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
 1962:     }
 1963:     my $renderheading = &mt('View of the problem');
 1964:     my $answerheading = &mt('Correct answer');
 1965:     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
 1966:         my $stu_fullname = $env{'form.fullname'};
 1967:         if ($stu_fullname eq '') {
 1968:             $stu_fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
 1969:         }
 1970:         my $forwhom = &nameUserString(undef,$stu_fullname,$uname,$udom);
 1971:         if ($forwhom ne '') {
 1972:             $renderheading = &mt('View of the problem for[_1]',$forwhom);
 1973:             $answerheading = &mt('Correct answer for[_1]',$forwhom);
 1974:         }
 1975:     }
 1976:     $rendered=
 1977:         '<div class="LC_Box">'
 1978:        .'<h3 class="LC_hcell">'.$renderheading.'</h3>'
 1979:        .$rendered
 1980:        .'</div>';
 1981:     $companswer=
 1982:         '<div class="LC_Box">'
 1983:        .'<h3 class="LC_hcell">'.$answerheading.'</h3>'
 1984:        .$companswer
 1985:        .'</div>';
 1986:     my $result;
 1987:     if ($mode eq 'both') {
 1988:         $result=$rendered.$companswer;
 1989:     } elsif ($mode eq 'text') {
 1990:         $result=$rendered;
 1991:     } elsif ($mode eq 'answer') {
 1992:         $result=$companswer;
 1993:     }
 1994:     return $result;
 1995: }
 1996: 
 1997: sub files_exist {
 1998:     my ($r, $symb) = @_;
 1999:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
 2000: 
 2001:     foreach my $student (@students) {
 2002:         my ($uname,$udom,$fullname) = split(/:/,$student);
 2003:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 2004: 					      $udom,$uname);
 2005:         my ($string,$timestamp)= &get_last_submission(\%record);
 2006:         foreach my $submission (@$string) {
 2007:             my ($partid,$respid) =
 2008: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2009:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
 2010: 					   \%record);
 2011:             return 1 if (@$files);
 2012:         }
 2013:     }
 2014:     return 0;
 2015: }
 2016: 
 2017: sub download_all_link {
 2018:     my ($r,$symb) = @_;
 2019:     my $all_students = 
 2020: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
 2021: 
 2022:     my $parts =
 2023: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
 2024: 
 2025:     my $identifier = &Apache::loncommon::get_cgi_id();
 2026:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
 2027:                              'cgi.'.$identifier.'.symb' => $symb,
 2028:                              'cgi.'.$identifier.'.parts' => $parts,});
 2029:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
 2030: 	      &mt('Download All Submitted Documents').'</a>');
 2031:     return
 2032: }
 2033: 
 2034: sub build_section_inputs {
 2035:     my $section_inputs;
 2036:     if ($env{'form.section'} eq '') {
 2037:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
 2038:     } else {
 2039:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
 2040:         foreach my $section (@sections) {
 2041:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
 2042:         }
 2043:     }
 2044:     return $section_inputs;
 2045: }
 2046: 
 2047: # --------------------------- show submissions of a student, option to grade 
 2048: sub submission {
 2049:     my ($request,$counter,$total) = @_;
 2050:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
 2051:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
 2052:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 2053:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 2054:     my ($symb) = &get_symb($request); 
 2055:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 2056: 
 2057:     if (!&canview($usec)) {
 2058:         $request->print(
 2059:             '<span class="LC_warning">'.
 2060:             &mt('Unable to view requested student.').
 2061:             ' '.&mt('([_1] in section [_2] in course id [_3])',
 2062:                         $uname.':'.$udom,$usec,$env{'request.course.id'}).
 2063:             '</span>');
 2064: 	$request->print(&show_grading_menu_form($symb));
 2065: 	return;
 2066:     }
 2067: 
 2068:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
 2069:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
 2070:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
 2071:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 2072:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 2073: 	'" src="'.$request->dir_config('lonIconsURL').
 2074: 	'/check.gif" height="16" border="0" />';
 2075: 
 2076:     # header info
 2077:     if ($counter == 0) {
 2078: 	&sub_page_js($request);
 2079: 	&sub_page_kw_js($request) if ($env{'form.handgrade'} eq 'yes');
 2080: 	$env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
 2081: 	    &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
 2082: 	if ($env{'form.handgrade'} eq 'yes' && &files_exist($request, $symb)) {
 2083: 	    &download_all_link($request, $symb);
 2084: 	}
 2085: 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
 2086: 			'<h4>&nbsp;'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).'</h4>'."\n");
 2087: 
 2088: 	# option to display problem, only once else it cause problems 
 2089:         # with the form later since the problem has a form.
 2090: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
 2091: 	    my $mode;
 2092: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
 2093: 		$mode='both';
 2094: 	    } elsif ($env{'form.vProb'} eq 'yes') {
 2095: 		$mode='text';
 2096: 	    } elsif ($env{'form.vAns'} eq 'yes') {
 2097: 		$mode='answer';
 2098: 	    }
 2099: 	    &Apache::lonxml::clear_problem_counter();
 2100: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 2101: 	}
 2102: 
 2103: 	# kwclr is the only variable that is guaranteed not to be blank 
 2104:         # if this subroutine has been called once.
 2105: 	my %keyhash = ();
 2106: 	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
 2107: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 2108: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 2109: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
 2110: 
 2111: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2112: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 2113: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 2114: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 2115: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 2116: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
 2117: 		$keyhash{$symb.'_subject'} : $env{'form.probTitle'};
 2118: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 2119: 	}
 2120: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 2121: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 2122: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
 2123: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
 2124: 			'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 2125: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
 2126: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
 2127: 			'<input type="hidden" name="probTitle"  value="'.$env{'form.probTitle'}.'" />'."\n".
 2128: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
 2129: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
 2130: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
 2131: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 2132: 			'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" />'."\n".
 2133: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 2134: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 2135: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
 2136: 			&build_section_inputs().
 2137: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 2138: 			'<input type="hidden" name="handgrade"  value="'.$env{'form.handgrade'}.'" />'."\n".
 2139: 			'<input type="hidden" name="NCT"'.
 2140: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
 2141: 	if ($env{'form.handgrade'} eq 'yes') {
 2142: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 2143: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 2144: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
 2145: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
 2146: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
 2147: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
 2148: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
 2149: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
 2150: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
 2151: 	    }
 2152: 	}
 2153: 	
 2154: 	my ($cts,$prnmsg) = (1,'');
 2155: 	while ($cts <= $env{'form.savemsgN'}) {
 2156: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
 2157: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
 2158: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
 2159: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
 2160: 		'" />'."\n".
 2161: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
 2162: 	    $cts++;
 2163: 	}
 2164: 	$request->print($prnmsg);
 2165: 
 2166: 	if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
 2167: 
 2168:             my %lt = &Apache::lonlocal::texthash(
 2169:                           keyh => 'Keyword Highlighting for Essays',
 2170:                           keyw => 'Keyword Options',
 2171:                           list => 'List',
 2172:                           past => 'Paste Selection to List',
 2173:                           high => 'Highlight Attribute',
 2174:                      );
 2175: #
 2176: # Print out the keyword options line
 2177: #
 2178:             $request->print(
 2179:                 '<div class="LC_columnSection">'
 2180:                .'<fieldset><legend>'.$lt{'keyh'}.'</legend>'
 2181:                .&Apache::lonhtmlcommon::funclist_from_array(
 2182:                     ['<a href="javascript:keywords(document.SCORE);" target="_self">'.$lt{'list'}.'</a>',
 2183:                      '<a href="#" onmousedown="javascript:getSel(); return false"
 2184:  class="page">'.$lt{'past'}.'</a>',
 2185:                      '<a href="javascript:kwhighlight();" target="_self">'.$lt{'high'}.'</a>'],
 2186:                     {legend => $lt{'keyw'}})
 2187:                .'</fieldset></div>'
 2188:             );
 2189: 
 2190: #
 2191: # Load the other essays for similarity check
 2192: #
 2193:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
 2194: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 2195: 	    $apath=&escape($apath);
 2196: 	    $apath=~s/\W/\_/gs;
 2197:             &init_old_essays($symb,$apath,$adom,$aname);
 2198:         }
 2199:     }
 2200: 
 2201: # This is where output for one specific student would start
 2202:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
 2203:     $request->print(
 2204:         "\n\n"
 2205:        .'<div class="LC_grade_show_user'.$add_class.'">'
 2206:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
 2207:        ."\n"
 2208:     );
 2209: 
 2210:     # Show additional functions if allowed
 2211:     if ($perm{'vgr'}) {
 2212:         $request->print(
 2213:             &Apache::loncommon::track_student_link(
 2214:                 'View recent activity',
 2215:                 $uname,$udom,'check')
 2216:            .' '
 2217:         );
 2218:     }
 2219:     if ($perm{'opa'}) {
 2220:         $request->print(
 2221:             &Apache::loncommon::pprmlink(
 2222:                 &mt('Set/Change parameters'),
 2223:                 $uname,$udom,$symb,'check'));
 2224:     }
 2225: 
 2226:     # Show Problem
 2227:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
 2228: 	my $mode;
 2229: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
 2230: 	    $mode='both';
 2231: 	} elsif ($env{'form.vProb'} eq 'all' ) {
 2232: 	    $mode='text';
 2233: 	} elsif ($env{'form.vAns'} eq 'all') {
 2234: 	    $mode='answer';
 2235: 	}
 2236: 	&Apache::lonxml::clear_problem_counter();
 2237: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
 2238:     }
 2239: 
 2240:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2241:     my $res_error;
 2242:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2243:     if ($res_error) {
 2244:         $request->print(&navmap_errormsg());
 2245:         return;
 2246:     }
 2247: 
 2248:     # Display student info
 2249:     $request->print(($counter == 0 ? '' : '<br />'));
 2250: 
 2251:     my $result='<div class="LC_Box">'
 2252:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
 2253:     $result.='<input type="hidden" name="name'.$counter.
 2254:              '" value="'.$env{'form.fullname'}.'" />'."\n";
 2255:     if ($env{'form.handgrade'} eq 'no') {
 2256:         $result.='<p class="LC_info">'
 2257:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
 2258:                 ."</p>\n";
 2259:     }
 2260: 
 2261:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
 2262:     my $fullname;
 2263:     my $col_fullnames = [];
 2264:     if ($env{'form.handgrade'} eq 'yes') {
 2265: 	(my $sub_result,$fullname,$col_fullnames)=
 2266: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 2267: 				 $counter);
 2268: 	$result.=$sub_result;
 2269:     }
 2270:     $request->print($result."\n");
 2271: 
 2272:     # print student answer/submission
 2273:     # Options are (1) Handgraded submission only
 2274:     #             (2) Last submission, includes submission that is not handgraded 
 2275:     #                  (for multi-response type part)
 2276:     #             (3) Last submission plus the parts info
 2277:     #             (4) The whole record for this student
 2278: 
 2279: 	my ($string,$timestamp)= &get_last_submission(\%record);
 2280: 	
 2281: 	my $lastsubonly;
 2282: 
 2283:         if ($$timestamp eq '') {
 2284:             $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
 2285:         } else {
 2286:             $lastsubonly =
 2287:                 '<div class="LC_grade_submissions_body">'
 2288:                .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
 2289: 
 2290: 	    my %seenparts;
 2291: 	    my @part_response_id = &flatten_responseType($responseType);
 2292: 	    foreach my $part (@part_response_id) {
 2293: 		next if ($env{'form.lastSub'} eq 'hdgrade' 
 2294: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 2295: 
 2296: 		my ($partid,$respid) = @{ $part };
 2297: 		my $display_part=&get_display_part($partid,$symb);
 2298: 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 2299: 		    if (exists($seenparts{$partid})) { next; }
 2300: 		    $seenparts{$partid}=1;
 2301:                     $request->print(
 2302:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2303:                         ' <b>'.&mt('Collaborative submission by: [_1]',
 2304:                                    '<a href="javascript:viewSubmitter(\''.
 2305:                                    $env{"form.$uname:$udom:$partid:submitted_by"}.
 2306:                                    '\');" target="_self">'.
 2307:                                    $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
 2308:                         '<br />');
 2309: 		    next;
 2310: 		}
 2311: 		my $responsetype = $responseType->{$partid}->{$respid};
 2312: 		if (!exists($record{"resource.$partid.$respid.submission"})) {
 2313:                     $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
 2314:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2315:                         ' <span class="LC_internal_info">'.
 2316:                         '('.&mt('Response ID: [_1]',$respid).')'.
 2317:                         '</span>&nbsp; &nbsp;'.
 2318: 			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 2319: 		    next;
 2320: 		}
 2321: 		foreach my $submission (@$string) {
 2322: 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2323: 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
 2324: 		    my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
 2325: 		    # Similarity check
 2326: 		    my $similar='';
 2327:                     my ($type,$trial,$rndseed);
 2328:                     if ($hide eq 'rand') {
 2329:                         $type = 'randomizetry';
 2330:                         $trial = $record{"resource.$partid.tries"};
 2331:                         $rndseed = $record{"resource.$partid.rndseed"};
 2332:                     }
 2333: 		    if ($env{'form.checkPlag'}) {
 2334: 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 2335: 			    &most_similar($uname,$udom,$symb,$subval);
 2336: 			if ($osim) {
 2337: 			    $osim=int($osim*100.0);
 2338: 			    my %old_course_desc = 
 2339: 				&Apache::lonnet::coursedescription($ocrsid,
 2340: 								   {'one_time' => 1});
 2341: 
 2342:                             if ($hide eq 'anon') {
 2343:                                 $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
 2344:                                          &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
 2345:                             } else {
 2346: 			        $similar="<hr /><h3><span class=\"LC_warning\">".
 2347: 				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
 2348: 				        $osim,
 2349: 				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 2350: 				        $old_course_desc{'description'},
 2351: 				        $old_course_desc{'num'},
 2352: 				        $old_course_desc{'domain'}).
 2353: 				    '</span></h3><blockquote><i>'.
 2354: 				    &keywords_highlight($oessay).
 2355: 				    '</i></blockquote><hr />';
 2356:                             }
 2357: 			}
 2358: 		    }
 2359: 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
 2360:                                          undef,$type,$trial,$rndseed);
 2361:                     if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' &&
 2362:                          $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 2363: 			my $display_part=&get_display_part($partid,$symb);
 2364:                         $lastsubonly.='<div class="LC_grade_submission_part">'.
 2365:                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2366:                             ' <span class="LC_internal_info">'.
 2367:                             '('.&mt('Response ID: [_1]',$respid).')'.
 2368:                             '</span>&nbsp; &nbsp;';
 2369: 			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
 2370: 			if (@$files) {
 2371:                             if ($hide eq 'anon') {
 2372:                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
 2373:                             } else {
 2374:                                 $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
 2375:                                             .'<br /><span class="LC_warning">';
 2376:                                 if(@$files == 1) {
 2377:                                     $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
 2378:                                 } else {
 2379:                                     $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
 2380:                                 }
 2381:                                 $lastsubonly .= '</span>';
 2382: 
 2383:                                 foreach my $file (@$files) {
 2384:                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
 2385:                                     $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
 2386:                                 }
 2387:                             }
 2388: 			    $lastsubonly.='<br />';
 2389: 			}
 2390:                         if ($hide eq 'anon') {
 2391:                             $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
 2392:                         } else {
 2393: 			    $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
 2394:                             if ($draft) {
 2395:                                 $lastsubonly.= ' <span class="LC_warning">'.&mt('Draft Copy').'</span>';
 2396:                             }
 2397:                             $subval =
 2398: 			        &cleanRecord($subval,$responsetype,$symb,$partid,
 2399: 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
 2400:                             if ($responsetype eq 'essay') {
 2401:                                 $subval =~ s{\n}{<br />}g;
 2402:                             }
 2403:                             $lastsubonly.=$subval."\n";
 2404:                         }
 2405: 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 2406: 			$lastsubonly.='</div>';
 2407: 		    }
 2408: 		}
 2409: 	    }
 2410: 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 2411: 	}
 2412: 	$request->print($lastsubonly);
 2413:    if ($env{'form.lastSub'} eq 'datesub') {
 2414: 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 2415: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
 2416:     }
 2417:     if ($env{'form.lastSub'} =~ /^(last|all)$/) {
 2418:         my $identifier = (&canmodify($usec)? $counter : '');
 2419: 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 2420: 								 $env{'request.course.id'},
 2421: 								 $last,'.submission',
 2422: 								 'Apache::grades::keywords_highlight',
 2423:                                                                  $usec,$identifier));
 2424:     }
 2425: 
 2426:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
 2427: 	.$udom.'" />'."\n");
 2428:     # return if view submission with no grading option
 2429:     if ($env{'form.showgrading'} eq '' || (!&canmodify($usec))) {
 2430: 	my $toGrade.='<input type="button" value="Grade Student" '.
 2431: 	    'onclick="javascript:checksubmit(this.form,\'Grade Student\',\''
 2432: 	    .$counter.'\');" target="_self" /> &nbsp;'."\n" if (&canmodify($usec));
 2433: 	$toGrade.='</div>'."\n";
 2434: 	if (($env{'form.command'} eq 'submission') || 
 2435: 	    ($env{'form.command'} eq 'processGroup' && $counter == $total)) {
 2436: 	    $toGrade.='</form>'.&show_grading_menu_form($symb); 
 2437: 	}
 2438: 	$request->print($toGrade);
 2439: 	return;
 2440:     } else {
 2441: 	$request->print('</div>'."\n");
 2442:     }
 2443: 
 2444:     # essay grading message center
 2445:     if ($env{'form.handgrade'} eq 'yes') {
 2446: 	my $result='<div class="LC_grade_message_center">';
 2447:     
 2448: 	$result.='<div class="LC_grade_message_center_header">'.
 2449: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
 2450: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
 2451: 	my $msgfor = $givenn.' '.$lastname;
 2452: 	if (scalar(@$col_fullnames) > 0) {
 2453: 	    my $lastone = pop(@$col_fullnames);
 2454: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
 2455: 	}
 2456: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
 2457: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
 2458: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 2459: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 2460: 	    ',\''.$msgfor.'\');" target="_self">'.
 2461: 	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
 2462: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
 2463: 	    ' <img src="'.$request->dir_config('lonIconsURL').
 2464: 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 2465: 	    '<br />&nbsp;('.
 2466: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 2467: 	$result.='</div></div>';
 2468: 	$request->print($result);
 2469:     }
 2470: 
 2471:     my %seen = ();
 2472:     my @partlist;
 2473:     my @gradePartRespid;
 2474:     my @part_response_id = &flatten_responseType($responseType);
 2475:     $request->print(
 2476:         '<div class="LC_Box">'
 2477:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
 2478:     );
 2479:     $request->print(&gradeBox_start());
 2480:     foreach my $part_response_id (@part_response_id) {
 2481:     	my ($partid,$respid) = @{ $part_response_id };
 2482: 	my $part_resp = join('_',@{ $part_response_id });
 2483: 	next if ($seen{$partid} > 0);
 2484: 	$seen{$partid}++;
 2485: 	next if ($$handgrade{$part_resp} ne 'yes' 
 2486: 		 && $env{'form.lastSub'} eq 'hdgrade');
 2487: 	push(@partlist,$partid);
 2488: 	push(@gradePartRespid,$partid.'.'.$respid);
 2489: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
 2490:     }
 2491:     $request->print(&gradeBox_end()); # </div>
 2492:     $request->print('</div>');
 2493: 
 2494:     $request->print('<div class="LC_grade_info_links">');
 2495:     $request->print('</div>');
 2496: 
 2497:     $result='<input type="hidden" name="partlist'.$counter.
 2498: 	'" value="'.(join ":",@partlist).'" />'."\n";
 2499:     $result.='<input type="hidden" name="gradePartRespid'.
 2500: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
 2501:     my $ctr = 0;
 2502:     while ($ctr < scalar(@partlist)) {
 2503: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
 2504: 	    $partlist[$ctr].'" />'."\n";
 2505: 	$ctr++;
 2506:     }
 2507:     $request->print($result.''."\n");
 2508: 
 2509: # Done with printing info for one student
 2510: 
 2511:     $request->print('</div>');#LC_grade_show_user
 2512: 
 2513: 
 2514:     # print end of form
 2515:     if ($counter == $total) {
 2516:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
 2517: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
 2518: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
 2519: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
 2520: 	my $ntstu ='<select name="NTSTU">'.
 2521: 	    '<option>1</option><option>2</option>'.
 2522: 	    '<option>3</option><option>5</option>'.
 2523: 	    '<option>7</option><option>10</option></select>'."\n";
 2524: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
 2525: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
 2526:         $endform.=&mt('[_1]student(s)',$ntstu);
 2527: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
 2528: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
 2529: 	    '<input type="button" value="'.&mt('Next').'" '.
 2530: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
 2531:         $endform.='<span class="LC_warning">'.
 2532:                   &mt('(Next and Previous (student) do not save the scores.)').
 2533:                   '</span>'."\n" ;
 2534:         $endform.="<input type='hidden' value='".&get_increment().
 2535:             "' name='increment' />";
 2536: 	$endform.='</td></tr></table></form>';
 2537: 	$endform.=&show_grading_menu_form($symb);
 2538: 	$request->print($endform);
 2539:     }
 2540:     return '';
 2541: }
 2542: 
 2543: sub check_collaborators {
 2544:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
 2545:     my ($result,@col_fullnames);
 2546:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
 2547:     foreach my $part (keys(%$handgrade)) {
 2548: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
 2549: 					'.maxcollaborators',
 2550: 					$symb,$udom,$uname);
 2551: 	next if ($ncol <= 0);
 2552: 	$part =~ s/\_/\./g;
 2553: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
 2554: 	my (@good_collaborators, @bad_collaborators);
 2555: 	foreach my $possible_collaborator
 2556: 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) { 
 2557: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
 2558: 	    next if ($possible_collaborator eq '');
 2559: 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
 2560: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
 2561: 	    next if ($co_name eq $uname && $co_dom eq $udom);
 2562: 	    # Doing this grep allows 'fuzzy' specification
 2563: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
 2564: 			       keys(%$classlist));
 2565: 	    if (! scalar(@matches)) {
 2566: 		push(@bad_collaborators, $possible_collaborator);
 2567: 	    } else {
 2568: 		push(@good_collaborators, @matches);
 2569: 	    }
 2570: 	}
 2571: 	if (scalar(@good_collaborators) != 0) {
 2572: 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
 2573: 	    foreach my $name (@good_collaborators) {
 2574: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
 2575: 		push(@col_fullnames, $givenn.' '.$lastname);
 2576: 		$result.='<li>'.$fullname->{$name}.'</li>';
 2577: 	    }
 2578: 	    $result.='</ol><br />'."\n";
 2579: 	    my ($part)=split(/\./,$part);
 2580: 	    $result.='<input type="hidden" name="collaborator'.$counter.
 2581: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
 2582: 		"\n";
 2583: 	}
 2584: 	if (scalar(@bad_collaborators) > 0) {
 2585: 	    $result.='<div class="LC_warning">';
 2586: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
 2587: 	    $result .= '</div>';
 2588: 	}         
 2589: 	if (scalar(@bad_collaborators > $ncol)) {
 2590: 	    $result .= '<div class="LC_warning">';
 2591: 	    $result .= &mt('This student has submitted too many '.
 2592: 		'collaborators.  Maximum is [_1].',$ncol);
 2593: 	    $result .= '</div>';
 2594: 	}
 2595:     }
 2596:     return ($result,$fullname,\@col_fullnames);
 2597: }
 2598: 
 2599: #--- Retrieve the last submission for all the parts
 2600: sub get_last_submission {
 2601:     my ($returnhash)=@_;
 2602:     my (@string,$timestamp,%lasthidden);
 2603:     if ($$returnhash{'version'}) {
 2604: 	my %lasthash=();
 2605: 	my ($version);
 2606: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
 2607: 	    foreach my $key (sort(split(/\:/,
 2608: 					$$returnhash{$version.':keys'}))) {
 2609: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
 2610: 		$timestamp = 
 2611: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 2612: 	    }
 2613: 	}
 2614:         my (%typeparts,%randombytry);
 2615:         my $showsurv = 
 2616:             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
 2617:         foreach my $key (sort(keys(%lasthash))) {
 2618:             if ($key =~ /\.type$/) {
 2619:                 if (($lasthash{$key} eq 'anonsurvey') || 
 2620:                     ($lasthash{$key} eq 'anonsurveycred') ||
 2621:                     ($lasthash{$key} eq 'randomizetry')) {
 2622:                     my ($ign,@parts) = split(/\./,$key);
 2623:                     pop(@parts);
 2624:                     my $id = join('.',@parts);
 2625:                     if ($lasthash{$key} eq 'randomizetry') {
 2626:                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
 2627:                     } else {
 2628:                         unless ($showsurv) {
 2629:                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
 2630:                         }
 2631:                     }
 2632:                     delete($lasthash{$key});
 2633:                 }
 2634:             }
 2635:         }
 2636:         my @hidden = keys(%typeparts);
 2637:         my @randomize = keys(%randombytry);
 2638: 	foreach my $key (keys(%lasthash)) {
 2639: 	    next if ($key !~ /\.submission$/);
 2640:             my $hide;
 2641:             if (@hidden) {
 2642:                 foreach my $id (@hidden) {
 2643:                     if ($key =~ /^\Q$id\E/) {
 2644:                         $hide = 'anon';
 2645:                         last;
 2646:                     }
 2647:                 }
 2648:             }
 2649:             unless ($hide) {
 2650:                 if (@randomize) {
 2651:                     foreach my $id (@randomize) {
 2652:                         if ($key =~ /^\Q$id\E/) {
 2653:                             $hide = 'rand';
 2654:                             last;
 2655:                         }
 2656:                     }
 2657:                 }
 2658:             }
 2659: 	    my ($partid,$foo) = split(/submission$/,$key);
 2660: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ? 1: 0;
 2661:             push(@string, join(':', $key, $hide, $draft, (
 2662:                 ref($lasthash{$key}) eq 'ARRAY' ?
 2663:                     join(',', @{$lasthash{$key}}) : $lasthash{$key}) ));
 2664: 	}
 2665:     }
 2666:     if (!@string) {
 2667: 	$string[0] =
 2668: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
 2669:     }
 2670:     return (\@string,\$timestamp);
 2671: }
 2672: 
 2673: #--- High light keywords, with style choosen by user.
 2674: sub keywords_highlight {
 2675:     my $string    = shift;
 2676:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
 2677:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
 2678:     (my $styleoff = $styleon) =~ s/\</\<\//;
 2679:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
 2680:     foreach my $keyword (@keylist) {
 2681: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
 2682:     }
 2683:     return $string;
 2684: }
 2685: 
 2686: # For Tasks provide a mechanism to display previous version for one specific student
 2687: 
 2688: sub show_previous_task_version {
 2689:     my ($request,$symb) = @_;
 2690:     if ($symb eq '') {
 2691:         $request->print(
 2692:             '<span class="LC_error">'.
 2693:             &mt('Unable to handle ambiguous references.').
 2694:             '</span>');
 2695:         return '';
 2696:     }
 2697:     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
 2698:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 2699:     if (!&canview($usec)) {
 2700:         $request->print('<span class="LC_warning">'.
 2701:                         &mt('Unable to view previous version for requested student.').
 2702:                         ' '.&mt('([_1] in section [_2] in course id [_3])',
 2703:                                 $uname.':'.$udom,$usec,$env{'request.course.id'}).
 2704:                         '</span>');
 2705:         return;
 2706:     }
 2707:     my $mode = 'both';
 2708:     my $isTask = ($symb =~/\.task$/);
 2709:     if ($isTask) {
 2710:         if ($env{'form.previousversion'} =~ /^\d+$/) {
 2711:             if ($env{'form.fullname'} eq '') {
 2712:                 $env{'form.fullname'} =
 2713:                     &Apache::loncommon::plainname($uname,$udom,'lastname');
 2714:             }
 2715:             my $probtitle=&Apache::lonnet::gettitle($symb);
 2716:             $request->print("\n\n".
 2717:                             '<div class="LC_grade_show_user">'.
 2718:                             '<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 2719:                             '</h2>'."\n");
 2720:             &Apache::lonxml::clear_problem_counter();
 2721:             $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,
 2722:                             {'previousversion' => $env{'form.previousversion'} }));
 2723:             $request->print("\n</div>");
 2724:         }
 2725:     }
 2726:     return;
 2727: }
 2728: 
 2729: sub choose_task_version_form {
 2730:     my ($symb,$uname,$udom,$nomenu) = @_;
 2731:     my $isTask = ($symb =~/\.task$/);
 2732:     my ($current,$version,$result,$js,$displayed,$rowtitle);
 2733:     if ($isTask) {
 2734:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 2735:                                               $udom,$uname);
 2736:         if (($record{'resource.0.version'} eq '') ||
 2737:             ($record{'resource.0.version'} < 2)) {
 2738:             return ($record{'resource.0.version'},
 2739:                     $record{'resource.0.version'},$result,$js);
 2740:         } else {
 2741:             $current = $record{'resource.0.version'};
 2742:         }
 2743:         if ($env{'form.previousversion'}) {
 2744:             $displayed = $env{'form.previousversion'};
 2745:             $rowtitle = &mt('Choose another version:')
 2746:         } else {
 2747:             $displayed = $current;
 2748:             $rowtitle = &mt('Show earlier version:');
 2749:         }
 2750:         $result = '<div class="LC_left_float">';
 2751:         my $list;
 2752:         my $numversions = 0;
 2753:         for (my $i=1; $i<=$record{'resource.0.version'}; $i++) {
 2754:             if ($i == $current) {
 2755:                 if (!$env{'form.previousversion'} || $nomenu) {
 2756:                     next;
 2757:                 } else {
 2758:                     $list .= '<option value="'.$i.'">'.&mt('Current').'</option>'."\n";
 2759:                     $numversions ++;
 2760:                 }
 2761:             } elsif (defined($record{'resource.'.$i.'.0.status'})) {
 2762:                 unless ($i == $env{'form.previousversion'}) {
 2763:                     $numversions ++;
 2764:                 }
 2765:                 $list .= '<option value="'.$i.'">'.$i.'</option>'."\n";
 2766:             }
 2767:         }
 2768:         if ($numversions) {
 2769:             $symb = &HTML::Entities::encode($symb,'<>"&');
 2770:             $result .=
 2771:                 '<form name="getprev" method="post" action=""'.
 2772:                 ' onsubmit="return previousVersion('."'$uname','$udom','$symb','$displayed'".');">'.
 2773:                 &Apache::loncommon::start_data_table().
 2774:                 &Apache::loncommon::start_data_table_row().
 2775:                 '<th align="left">'.$rowtitle.'</th>'.
 2776:                 '<td><select name="version">'.
 2777:                 '<option>'.&mt('Select').'</option>'.
 2778:                 $list.
 2779:                 '</select></td>'.
 2780:                 &Apache::loncommon::end_data_table_row();
 2781:             unless ($nomenu) {
 2782:                 $result .= &Apache::loncommon::start_data_table_row().
 2783:                 '<th align="left">'.&mt('Open in new window').'</th>'.
 2784:                 '<td><span class="LC_nobreak">'.
 2785:                 '<label><input type="radio" name="prevwin" value="1" />'.
 2786:                 &mt('Yes').'</label>'.
 2787:                 '<label><input type="radio" name="prevwin" value="0" checked="checked" />'.&mt('No').'</label>'.
 2788:                 '</span></td>'.
 2789:                 &Apache::loncommon::end_data_table_row();
 2790:             }
 2791:             $result .=
 2792:                 &Apache::loncommon::start_data_table_row().
 2793:                 '<th align="left">&nbsp;</th>'.
 2794:                 '<td>'.
 2795:                 '<input type="submit" name="prevsub" value="'.&mt('Display').'" />'.
 2796:                 '</td>'.
 2797:                 &Apache::loncommon::end_data_table_row().
 2798:                 &Apache::loncommon::end_data_table().
 2799:                 '</form>';
 2800:             $js = &previous_display_javascript($nomenu,$current);
 2801:         } elsif ($displayed && $nomenu) {
 2802:             $result .= '<a href="javascript:window.close()">'.&mt('Close window').'</a>';
 2803:         } else {
 2804:             $result .= &mt('No previous versions to show for this student');
 2805:         }
 2806:         $result .= '</div>';
 2807:     }
 2808:     return ($current,$displayed,$result,$js);
 2809: }
 2810: 
 2811: sub previous_display_javascript {
 2812:     my ($nomenu,$current) = @_;
 2813:     my $js = <<"JSONE";
 2814: <script type="text/javascript">
 2815: // <![CDATA[
 2816: function previousVersion(uname,udom,symb) {
 2817:     var current = '$current';
 2818:     var version = document.getprev.version.options[document.getprev.version.selectedIndex].value;
 2819:     var prevstr = new RegExp("^\\\\d+\$");
 2820:     if (!prevstr.test(version)) {
 2821:         return false;
 2822:     }
 2823:     var url = '';
 2824:     if (version == current) {
 2825:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=submission';
 2826:     } else {
 2827:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=versionsub&previousversion='+version;
 2828:     }
 2829: JSONE
 2830:     if ($nomenu) {
 2831:         $js .= <<"JSTWO";
 2832:     document.location.href = url;
 2833: JSTWO
 2834:     } else {
 2835:         $js .= <<"JSTHREE";
 2836:     var newwin = 0;
 2837:     for (var i=0; i<document.getprev.prevwin.length; i++) {
 2838:         if (document.getprev.prevwin[i].checked == true) {
 2839:             newwin = document.getprev.prevwin[i].value;
 2840:         }
 2841:     }
 2842:     if (newwin == 1) {
 2843:         var options = 'height=600,width=800,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no';
 2844:         url = url+'&inhibitmenu=yes';
 2845:         if (typeof(previousWin) == 'undefined' || previousWin.closed) {
 2846:             previousWin = window.open(url,'',options,1);
 2847:         } else {
 2848:             previousWin.location.href = url;
 2849:         }
 2850:         previousWin.focus();
 2851:         return false;
 2852:     } else {
 2853:         document.location.href = url;
 2854:         return false;
 2855:     }
 2856: JSTHREE
 2857:     }
 2858:     $js .= <<"ENDJS";
 2859:     return false;
 2860: }
 2861: // ]]>
 2862: </script>
 2863: ENDJS
 2864: 
 2865: }
 2866: 
 2867: #--- Called from submission routine
 2868: sub processHandGrade {
 2869:     my ($request) = shift;
 2870:     my ($symb)   = &get_symb($request);
 2871:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2872:     my $button = $env{'form.gradeOpt'};
 2873:     my $ngrade = $env{'form.NCT'};
 2874:     my $ntstu  = $env{'form.NTSTU'};
 2875:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2876:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
 2877: 
 2878:     if ($button eq 'Save & Next') {
 2879: 	my $ctr = 0;
 2880: 	while ($ctr < $ngrade) {
 2881: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 2882: 	    my ($errorflag,$pts,$wgt,$numhidden) = 
 2883:                 &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 2884: 	    if ($errorflag eq 'no_score') {
 2885: 		$ctr++;
 2886: 		next;
 2887: 	    }
 2888: 	    if ($errorflag eq 'not_allowed') {
 2889:                 $request->print(
 2890:                     '<span class="LC_error">'
 2891:                    .&mt('Not allowed to modify grades for [_1]',"$uname:$udom")
 2892:                    .'</span>');
 2893: 		$ctr++;
 2894: 		next;
 2895: 	    }
 2896:             if ($numhidden) {
 2897:                 $request->print(
 2898:                     '<span class="LC_info">'
 2899:                    .&mt('For [_1]: [quant,_2,transaction] hidden',"$uname:$udom",$numhidden)
 2900:                    .'</span><br />');
 2901:             }
 2902: 	    my $includemsg = $env{'form.includemsg'.$ctr};
 2903: 	    my ($subject,$message,$msgstatus) = ('','','');
 2904: 	    my $restitle = &Apache::lonnet::gettitle($symb);
 2905:             my ($feedurl,$showsymb) =
 2906: 		&get_feedurl_and_symb($symb,$uname,$udom);
 2907: 	    my $messagetail;
 2908: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
 2909: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
 2910: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
 2911: 		$subject.=' ['.$restitle.']';
 2912: 		my (@msgnum) = split(/,/,$includemsg);
 2913: 		foreach (@msgnum) {
 2914: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
 2915: 		}
 2916: 		$message =&Apache::lonfeedback::clear_out_html($message);
 2917: 		if ($env{'form.withgrades'.$ctr}) {
 2918: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
 2919: 		    $messagetail = " for <a href=\"".
 2920: 		                   $feedurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2921: 		}
 2922: 		$msgstatus = 
 2923:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
 2924: 						     $message.$messagetail,
 2925:                                                      undef,$feedurl,undef,
 2926:                                                      undef,undef,$showsymb,
 2927:                                                      $restitle);
 2928: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
 2929: 				$msgstatus.'<br />');
 2930: 	    }
 2931: 	    if ($env{'form.collaborator'.$ctr}) {
 2932: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
 2933: 		foreach my $collabstr (@collabstrs) {
 2934: 		    my ($part,@collaborators) = split(/:/,$collabstr);
 2935: 		    foreach my $collaborator (@collaborators) {
 2936: 			my ($errorflag,$pts,$wgt) = 
 2937: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
 2938: 					   $env{'form.unamedom'.$ctr},$part);
 2939: 			if ($errorflag eq 'not_allowed') {
 2940: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 2941: 			    next;
 2942: 			} elsif ($message ne '') {
 2943: 			    my ($baseurl,$showsymb) = 
 2944: 				&get_feedurl_and_symb($symb,$collaborator,
 2945: 						      $udom);
 2946: 			    if ($env{'form.withgrades'.$ctr}) {
 2947: 				$messagetail = " for <a href=\"".
 2948:                                     $baseurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2949: 			    }
 2950: 			    $msgstatus = 
 2951: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 2952: 			}
 2953: 		    }
 2954: 		}
 2955: 	    }
 2956: 	    $ctr++;
 2957: 	}
 2958:     }
 2959: 
 2960:     if ($env{'form.handgrade'} eq 'yes') {
 2961: 	# Keywords sorted in alphabatical order
 2962: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2963: 	my %keyhash = ();
 2964: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
 2965: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
 2966: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 2967: 	$env{'form.keywords'} = join(' ',@keywords);
 2968: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
 2969: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
 2970: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 2971: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 2972: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
 2973: 
 2974: 	# message center - Order of message gets changed. Blank line is eliminated.
 2975: 	# New messages are saved in env for the next student.
 2976: 	# All messages are saved in nohist_handgrade.db
 2977: 	my ($ctr,$idx) = (1,1);
 2978: 	while ($ctr <= $env{'form.savemsgN'}) {
 2979: 	    if ($env{'form.savemsg'.$ctr} ne '') {
 2980: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
 2981: 		$idx++;
 2982: 	    }
 2983: 	    $ctr++;
 2984: 	}
 2985: 	$ctr = 0;
 2986: 	while ($ctr < $ngrade) {
 2987: 	    if ($env{'form.newmsg'.$ctr} ne '') {
 2988: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2989: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2990: 		$idx++;
 2991: 	    }
 2992: 	    $ctr++;
 2993: 	}
 2994: 	$env{'form.savemsgN'} = --$idx;
 2995: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
 2996: 	my $putresult = &Apache::lonnet::put
 2997: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
 2998:     }
 2999:     # Called by Save & Refresh from Highlight Attribute Window
 3000:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 3001:     if ($env{'form.refresh'} eq 'on') {
 3002: 	my ($ctr,$total) = (0,0);
 3003: 	while ($ctr < $ngrade) {
 3004: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
 3005: 	    $ctr++;
 3006: 	}
 3007: 	$env{'form.NTSTU'}=$ngrade;
 3008: 	$ctr = 0;
 3009: 	while ($ctr < $total) {
 3010: 	    my $processUser = $env{'form.unamedom'.$ctr};
 3011: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 3012: 	    $env{'form.fullname'} = $$fullname{$processUser};
 3013: 	    &submission($request,$ctr,$total-1);
 3014: 	    $ctr++;
 3015: 	}
 3016: 	return '';
 3017:     }
 3018: 
 3019: # Go directly to grade student - from submission or link from chart page
 3020:     if ($button eq 'Grade Student') {
 3021: 	(undef,undef,$env{'form.handgrade'},undef,undef) = &showResourceInfo($symb);
 3022: 	my $processUser = $env{'form.unamedom'.$env{'form.studentNo'}};
 3023: 	($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 3024: 	$env{'form.fullname'} = $$fullname{$processUser};
 3025: 	&submission($request,0,0);
 3026: 	return '';
 3027:     }
 3028: 
 3029:     # Get the next/previous one or group of students
 3030:     my $firststu = $env{'form.unamedom0'};
 3031:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
 3032:     my $ctr = 2;
 3033:     while ($laststu eq '') {
 3034: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
 3035: 	$ctr++;
 3036: 	$laststu = $firststu if ($ctr > $ngrade);
 3037:     }
 3038: 
 3039:     my (@parsedlist,@nextlist);
 3040:     my ($nextflg) = 0;
 3041:     foreach my $item (sort 
 3042: 	     {
 3043: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3044: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3045: 		 }
 3046: 		 return $a cmp $b;
 3047: 	     } (keys(%$fullname))) {
 3048: 	if ($nextflg == 1 && $button =~ /Next$/) {
 3049: 	    push(@parsedlist,$item);
 3050: 	}
 3051: 	$nextflg = 1 if ($item eq $laststu);
 3052: 	if ($button eq 'Previous') {
 3053: 	    last if ($item eq $firststu);
 3054: 	    push(@parsedlist,$item);
 3055: 	}
 3056:     }
 3057:     $ctr = 0;
 3058:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
 3059:     my $res_error;
 3060:     my ($partlist) = &response_type($symb,\$res_error);
 3061:     if ($res_error) {
 3062:         $request->print(&navmap_errormsg());
 3063:         return;
 3064:     }
 3065:     foreach my $student (@parsedlist) {
 3066: 	my $submitonly=$env{'form.submitonly'};
 3067: 	my ($uname,$udom) = split(/:/,$student);
 3068: 	
 3069: 	if ($submitonly eq 'queued') {
 3070: 	    my %queue_status = 
 3071: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 3072: 							$udom,$uname);
 3073: 	    next if (!defined($queue_status{'gradingqueue'}));
 3074: 	}
 3075: 
 3076: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
 3077: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 3078: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
 3079: 	    my $submitted = 0;
 3080: 	    my $ungraded = 0;
 3081: 	    my $incorrect = 0;
 3082: 	    foreach my $item (keys(%status)) {
 3083: 		$submitted = 1 if ($status{$item} ne 'nothing');
 3084: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
 3085: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
 3086: 		my ($foo,$partid,$foo1) = split(/\./,$item);
 3087: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 3088: 		    $submitted = 0;
 3089: 		}
 3090: 	    }
 3091: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 3092: 				     $submitonly eq 'incorrect' ||
 3093: 				     $submitonly eq 'graded'));
 3094: 	    next if (!$ungraded && ($submitonly eq 'graded'));
 3095: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 3096: 	}
 3097: 	push(@nextlist,$student) if ($ctr < $ntstu);
 3098: 	last if ($ctr == $ntstu);
 3099: 	$ctr++;
 3100:     }
 3101: 
 3102:     $ctr = 0;
 3103:     my $total = scalar(@nextlist)-1;
 3104: 
 3105:     foreach (sort(@nextlist)) {
 3106: 	my ($uname,$udom,$submitter) = split(/:/);
 3107: 	$env{'form.student'}  = $uname;
 3108: 	$env{'form.userdom'}  = $udom;
 3109: 	$env{'form.fullname'} = $$fullname{$_};
 3110: 	&submission($request,$ctr,$total);
 3111: 	$ctr++;
 3112:     }
 3113:     if ($total < 0) {
 3114: 	my $the_end = '<h3><span class="LC_info">'.&mt('LON-CAPA User Message').'</span></h3><br />'."\n";
 3115: 	$the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
 3116: 	$the_end.=&mt('Click on the button below to return to the grading menu.').'<br /><br />'."\n";
 3117: 	$the_end.=&show_grading_menu_form($symb);
 3118: 	$request->print($the_end);
 3119:     }
 3120:     return '';
 3121: }
 3122: 
 3123: #---- Save the score and award for each student, if changed
 3124: sub saveHandGrade {
 3125:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 3126:     my @version_parts;
 3127:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 3128: 					   $env{'request.course.id'});
 3129:     if (!&canmodify($usec)) { return('not_allowed'); }
 3130:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
 3131:     my @parts_graded;
 3132:     my %newrecord  = ();
 3133:     my ($pts,$wgt,$totchg) = ('','',0);
 3134:     my %aggregate = ();
 3135:     my $aggregateflag = 0;
 3136:     if ($env{'form.HIDE'.$newflg}) {
 3137:         my ($version,$parts) = split(/:/,$env{'form.HIDE'.$newflg},2);
 3138:         my $numchgs = &makehidden($version,$parts,\%record,$symb,$domain,$stuname,1);
 3139:         $totchg += $numchgs;
 3140:     }
 3141:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
 3142:     foreach my $new_part (@parts) {
 3143: 	#collaborator ($submi may vary for different parts
 3144: 	if ($submitter && $new_part ne $part) { next; }
 3145: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
 3146: 	if ($dropMenu eq 'excused') {
 3147: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 3148: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 3149: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 3150: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 3151: 		}
 3152: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 3153: 	    }
 3154: 	} elsif ($dropMenu eq 'reset status'
 3155: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
 3156: 	    foreach my $key (keys(%record)) {
 3157: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
 3158: 	    }
 3159: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 3160: 		"$env{'user.name'}:$env{'user.domain'}";
 3161:             my $totaltries = $record{'resource.'.$part.'.tries'};
 3162: 
 3163:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 3164: 					       [$new_part]);
 3165:             my $aggtries =$totaltries;
 3166:             if ($last_resets{$new_part}) {
 3167:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
 3168: 					   $new_part);
 3169:             }
 3170: 
 3171:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
 3172:             if ($aggtries > 0) {
 3173:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 3174:                 $aggregateflag = 1;
 3175:             }
 3176: 	} elsif ($dropMenu eq '') {
 3177: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 3178: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
 3179: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
 3180: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
 3181: 		next;
 3182: 	    }
 3183: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 3184: 		$env{'form.WGT'.$newflg.'_'.$new_part};
 3185: 	    my $partial= $pts/$wgt;
 3186: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 3187: 		#do not update score for part if not changed.
 3188:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 3189: 		next;
 3190: 	    } else {
 3191: 	        push(@parts_graded,$new_part);
 3192: 	    }
 3193: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 3194: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
 3195: 	    }
 3196: 	    my $reckey = 'resource.'.$new_part.'.solved';
 3197: 	    if ($partial == 0) {
 3198: 		if ($record{$reckey} ne 'incorrect_by_override') {
 3199: 		    $newrecord{$reckey} = 'incorrect_by_override';
 3200: 		}
 3201: 	    } else {
 3202: 		if ($record{$reckey} ne 'correct_by_override') {
 3203: 		    $newrecord{$reckey} = 'correct_by_override';
 3204: 		}
 3205: 	    }	    
 3206: 	    if ($submitter && 
 3207: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
 3208: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
 3209: 	    }
 3210: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 3211: 		"$env{'user.name'}:$env{'user.domain'}";
 3212: 	}
 3213: 	# unless problem has been graded, set flag to version the submitted files
 3214: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
 3215: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
 3216: 	        $dropMenu eq 'reset status')
 3217: 	   {
 3218: 	    push(@version_parts,$new_part);
 3219: 	}
 3220:     }
 3221:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3222:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3223: 
 3224:     if (%newrecord) {
 3225:         if (@version_parts) {
 3226:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
 3227:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
 3228: 	    @newrecord{@changed_keys} = @record{@changed_keys};
 3229: 	    foreach my $new_part (@version_parts) {
 3230: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
 3231: 				$new_part,\%newrecord);
 3232: 	    }
 3233:         }
 3234: 	&Apache::lonnet::cstore(\%newrecord,$symb,
 3235: 				$env{'request.course.id'},$domain,$stuname);
 3236: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
 3237: 				     $cdom,$cnum,$domain,$stuname);
 3238:     }
 3239:     if ($aggregateflag) {
 3240:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3241: 			      $cdom,$cnum);
 3242:     }
 3243:     return ('',$pts,$wgt,$totchg);
 3244: }
 3245: 
 3246: sub makehidden {
 3247:     my ($version,$parts,$record,$symb,$domain,$stuname,$tolog) = @_;
 3248:     return unless (ref($record) eq 'HASH');
 3249:     my %modified;
 3250:     my $numchanged = 0;
 3251:     if (exists($record->{$version.':keys'})) {
 3252:         my $partsregexp = $parts;
 3253:         $partsregexp =~ s/,/|/g;
 3254:         foreach my $key (split(/\:/,$record->{$version.':keys'})) {
 3255:             if ($key =~ /^resource\.(?:$partsregexp)\.([^\.]+)$/) {
 3256:                  my $item = $1;
 3257:                  unless (($item eq 'solved') || ($item =~ /^award(|msg|ed)$/)) {
 3258:                      $modified{$key} = $record->{$version.':'.$key};
 3259:                  }
 3260:             } elsif ($key =~ m{^(resource\.(?:$partsregexp)\.[^\.]+\.)(.+)$}) {
 3261:                 $modified{$1.'hidden'.$2} = $record->{$version.':'.$key};
 3262:             } elsif ($key =~ /^(ip|timestamp|host)$/) {
 3263:                 $modified{$key} = $record->{$version.':'.$key};
 3264:             }
 3265:         }
 3266:         if (keys(%modified)) {
 3267:             if (&Apache::lonnet::putstore($env{'request.course.id'},$symb,$version,\%modified,
 3268:                                           $domain,$stuname,$tolog) eq 'ok') {
 3269:                 $numchanged ++;
 3270:             }
 3271:         }
 3272:     }
 3273:     return $numchanged;
 3274: }
 3275: 
 3276: sub check_and_remove_from_queue {
 3277:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
 3278:     my @ungraded_parts;
 3279:     foreach my $part (@{$parts}) {
 3280: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
 3281: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
 3282: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 3283: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 3284: 		) {
 3285: 	    push(@ungraded_parts, $part);
 3286: 	}
 3287:     }
 3288:     if ( !@ungraded_parts ) {
 3289: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
 3290: 					       $cnum,$domain,$stuname);
 3291:     }
 3292: }
 3293: 
 3294: sub handback_files {
 3295:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
 3296:     my $portfolio_root = '/userfiles/portfolio';
 3297:     my $res_error;
 3298:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3299:     if ($res_error) {
 3300:         $request->print('<br />'.&navmap_errormsg().'<br />');
 3301:         return;
 3302:     }
 3303:     my @handedback;
 3304:     my $file_msg;
 3305:     my @part_response_id = &flatten_responseType($responseType);
 3306:     foreach my $part_response_id (@part_response_id) {
 3307:     	my ($part_id,$resp_id) = @{ $part_response_id };
 3308: 	my $part_resp = join('_',@{ $part_response_id });
 3309:         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
 3310:             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
 3311:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
 3312: 		if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
 3313:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
 3314:                     my ($directory,$answer_file) = 
 3315:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
 3316:                     my ($answer_name,$answer_ver,$answer_ext) =
 3317: 		        &file_name_version_ext($answer_file);
 3318: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
 3319:                     my $getpropath = 1;
 3320:                     my ($dir_list,$listerror) =
 3321:                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
 3322:                                                  $domain,$stuname,$getpropath);
 3323: 		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3324:                     # fix filename
 3325:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
 3326:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
 3327:             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
 3328:             	                                $save_file_name);
 3329:                     if ($result !~ m|^/uploaded/|) {
 3330:                         $request->print('<br /><span class="LC_error">'.
 3331:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
 3332:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
 3333:                                         '</span>');
 3334:                     } else {
 3335:                         # mark the file as read only
 3336:                         push(@handedback,$save_file_name);
 3337: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 3338: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 3339: 			}
 3340:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
 3341: 			$file_msg.='<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
 3342: 
 3343:                     }
 3344:                     $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
 3345:                 }
 3346:             }
 3347:         }
 3348:     }
 3349:     if (@handedback > 0) {
 3350:         $request->print('<br />');
 3351:         my @what = ($symb,$env{'request.course.id'},'handback');
 3352:         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
 3353:         my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});
 3354:         my ($subject,$message);
 3355:         if (scalar(@handedback) == 1) {
 3356:             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
 3357:         } else {
 3358:             $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
 3359:             $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
 3360:         }
 3361:         $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
 3362:         $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
 3363:                     &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
 3364:         my ($feedurl,$showsymb) =
 3365:             &get_feedurl_and_symb($symb,$domain,$stuname);
 3366:         my $restitle = &Apache::lonnet::gettitle($symb);
 3367:         $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
 3368:         my $msgstatus =
 3369:              &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
 3370:                  $message,undef,$feedurl,undef,undef,undef,$showsymb,
 3371:                  $restitle);
 3372:         if ($msgstatus) {
 3373:             $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
 3374:         }
 3375:     }
 3376:     return;
 3377: }
 3378: 
 3379: sub get_feedurl_and_symb {
 3380:     my ($symb,$uname,$udom) = @_;
 3381:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3382:     $url = &Apache::lonnet::clutter($url);
 3383:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
 3384: 					$symb,$udom,$uname);
 3385:     if ($encrypturl =~ /^yes$/i) {
 3386: 	&Apache::lonenc::encrypted(\$url,1);
 3387: 	&Apache::lonenc::encrypted(\$symb,1);
 3388:     }
 3389:     return ($url,$symb);
 3390: }
 3391: 
 3392: sub get_submitted_files {
 3393:     my ($udom,$uname,$partid,$respid,$record) = @_;
 3394:     my @files;
 3395:     if ($$record{"resource.$partid.$respid.portfiles"}) {
 3396:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
 3397:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
 3398:     	    push(@files,$file_url.$file);
 3399:         }
 3400:     }
 3401:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
 3402:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
 3403:     }
 3404:     return (\@files);
 3405: }
 3406: 
 3407: # ----------- Provides number of tries since last reset.
 3408: sub get_num_tries {
 3409:     my ($record,$last_reset,$part) = @_;
 3410:     my $timestamp = '';
 3411:     my $num_tries = 0;
 3412:     if ($$record{'version'}) {
 3413:         for (my $version=$$record{'version'};$version>=1;$version--) {
 3414:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
 3415:                 $timestamp = $$record{$version.':timestamp'};
 3416:                 if ($timestamp > $last_reset) {
 3417:                     $num_tries ++;
 3418:                 } else {
 3419:                     last;
 3420:                 }
 3421:             }
 3422:         }
 3423:     }
 3424:     return $num_tries;
 3425: }
 3426: 
 3427: # ----------- Determine decrements required in aggregate totals 
 3428: sub decrement_aggs {
 3429:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
 3430:     my %decrement = (
 3431:                         attempts => 0,
 3432:                         users => 0,
 3433:                         correct => 0
 3434:                     );
 3435:     $decrement{'attempts'} = $aggtries;
 3436:     if ($solvedstatus =~ /^correct/) {
 3437:         $decrement{'correct'} = 1;
 3438:     }
 3439:     if ($aggtries == $totaltries) {
 3440:         $decrement{'users'} = 1;
 3441:     }
 3442:     foreach my $type (keys(%decrement)) {
 3443:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
 3444:     }
 3445:     return;
 3446: }
 3447: 
 3448: # ----------- Determine timestamps for last reset of aggregate totals for parts  
 3449: sub get_last_resets {
 3450:     my ($symb,$courseid,$partids) =@_;
 3451:     my %last_resets;
 3452:     my $cdom = $env{'course.'.$courseid.'.domain'};
 3453:     my $cname = $env{'course.'.$courseid.'.num'};
 3454:     my @keys;
 3455:     foreach my $part (@{$partids}) {
 3456: 	push(@keys,"$symb\0$part\0resettime");
 3457:     }
 3458:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
 3459: 				     $cdom,$cname);
 3460:     foreach my $part (@{$partids}) {
 3461: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
 3462:     }
 3463:     return %last_resets;
 3464: }
 3465: 
 3466: # ----------- Handles creating versions for portfolio files as answers
 3467: sub version_portfiles {
 3468:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
 3469:     my $version_parts = join('|',@$v_flag);
 3470:     my @returned_keys;
 3471:     my $parts = join('|', @$parts_graded);
 3472:     my $portfolio_root = '/userfiles/portfolio';
 3473:     foreach my $key (keys(%$record)) {
 3474:         my $new_portfiles;
 3475:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
 3476:             my @versioned_portfiles;
 3477:             my @portfiles = split(/\s*,\s*/,$$record{$key});
 3478:             foreach my $file (@portfiles) {
 3479:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
 3480:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
 3481: 		my ($answer_name,$answer_ver,$answer_ext) =
 3482: 		    &file_name_version_ext($answer_file);
 3483:                 my $getpropath = 1;
 3484:                 my ($dir_list,$listerror) =
 3485:                     &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
 3486:                                              $stu_name,$getpropath);
 3487:                 my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3488:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
 3489:                 if ($new_answer ne 'problem getting file') {
 3490:                     push(@versioned_portfiles, $directory.$new_answer);
 3491:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
 3492:                         [$directory.$new_answer],
 3493:                         [$symb,$env{'request.course.id'},'graded']);
 3494:                 }
 3495:             }
 3496:             $$record{$key} = join(',',@versioned_portfiles);
 3497:             push(@returned_keys,$key);
 3498:         }
 3499:     } 
 3500:     return (@returned_keys);   
 3501: }
 3502: 
 3503: sub get_next_version {
 3504:     my ($answer_name, $answer_ext, $dir_list) = @_;
 3505:     my $version;
 3506:     if (ref($dir_list) eq 'ARRAY') {
 3507:         foreach my $row (@{$dir_list}) {
 3508:             my ($file) = split(/\&/,$row,2);
 3509:             my ($file_name,$file_version,$file_ext) =
 3510: 	        &file_name_version_ext($file);
 3511:             if (($file_name eq $answer_name) && 
 3512: 	        ($file_ext eq $answer_ext)) {
 3513:                 # gets here if filename and extension match, 
 3514:                 # regardless of version
 3515:                 if ($file_version ne '') {
 3516:                     # a versioned file is found  so save it for later
 3517:                     if ($file_version > $version) {
 3518: 		        $version = $file_version;
 3519:                     }
 3520: 	        }
 3521:             }
 3522:         }
 3523:     }
 3524:     $version ++;
 3525:     return($version);
 3526: }
 3527: 
 3528: sub version_selected_portfile {
 3529:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
 3530:     my ($answer_name,$answer_ver,$answer_ext) =
 3531:         &file_name_version_ext($file_name);
 3532:     my $new_answer;
 3533:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
 3534:     if($env{'form.copy'} eq '-1') {
 3535:         $new_answer = 'problem getting file';
 3536:     } else {
 3537:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
 3538:         my $copy_result = &Apache::lonnet::finishuserfileupload(
 3539:                             $stu_name,$domain,'copy',
 3540: 		        '/portfolio'.$directory.$new_answer);
 3541:     }    
 3542:     return ($new_answer);
 3543: }
 3544: 
 3545: sub file_name_version_ext {
 3546:     my ($file)=@_;
 3547:     my @file_parts = split(/\./, $file);
 3548:     my ($name,$version,$ext);
 3549:     if (@file_parts > 1) {
 3550: 	$ext=pop(@file_parts);
 3551: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
 3552: 	    $version=pop(@file_parts);
 3553: 	}
 3554: 	$name=join('.',@file_parts);
 3555:     } else {
 3556: 	$name=join('.',@file_parts);
 3557:     }
 3558:     return($name,$version,$ext);
 3559: }
 3560: 
 3561: #--------------------------------------------------------------------------------------
 3562: #
 3563: #-------------------------- Next few routines handles grading by section or whole class
 3564: #
 3565: #--- Javascript to handle grading by section or whole class
 3566: sub viewgrades_js {
 3567:     my ($request) = shift;
 3568: 
 3569:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 3570:     &js_escape(\$alertmsg);
 3571:     $request->print(<<VIEWJAVASCRIPT);
 3572: <script type="text/javascript" language="javascript">
 3573:    function writePoint(partid,weight,point) {
 3574: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3575: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3576: 	if (point == "textval") {
 3577: 	    point = document.classgrade["TEXTVAL_"+partid].value;
 3578: 	    if (isNaN(point) || parseFloat(point) < 0) {
 3579: 		alert("$alertmsg"+parseFloat(point));
 3580: 		var resetbox = false;
 3581: 		for (var i=0; i<radioButton.length; i++) {
 3582: 		    if (radioButton[i].checked) {
 3583: 			textbox.value = i;
 3584: 			resetbox = true;
 3585: 		    }
 3586: 		}
 3587: 		if (!resetbox) {
 3588: 		    textbox.value = "";
 3589: 		}
 3590: 		return;
 3591: 	    }
 3592: 	    if (parseFloat(point) > parseFloat(weight)) {
 3593: 		var resp = confirm("You entered a value ("+parseFloat(point)+
 3594: 				   ") greater than the weight for the part. Accept?");
 3595: 		if (resp == false) {
 3596: 		    textbox.value = "";
 3597: 		    return;
 3598: 		}
 3599: 	    }
 3600: 	    for (var i=0; i<radioButton.length; i++) {
 3601: 		radioButton[i].checked=false;
 3602: 		if (parseFloat(point) == i) {
 3603: 		    radioButton[i].checked=true;
 3604: 		}
 3605: 	    }
 3606: 
 3607: 	} else {
 3608: 	    textbox.value = parseFloat(point);
 3609: 	}
 3610: 	for (i=0;i<document.classgrade.total.value;i++) {
 3611: 	    var user = document.classgrade["ctr"+i].value;
 3612: 	    user = user.replace(new RegExp(':', 'g'),"_");
 3613: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3614: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3615: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3616: 	    if (saveval != "correct") {
 3617: 		scorename.value = point;
 3618: 		if (selname[0].selected != true) {
 3619: 		    selname[0].selected = true;
 3620: 		}
 3621: 	    }
 3622: 	}
 3623: 	document.classgrade["SELVAL_"+partid][0].selected = true;
 3624:     }
 3625: 
 3626:     function writeRadText(partid,weight) {
 3627: 	var selval   = document.classgrade["SELVAL_"+partid];
 3628: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3629:         var override = document.classgrade["FORCE_"+partid].checked;
 3630: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3631: 	if (selval[1].selected || selval[2].selected) {
 3632: 	    for (var i=0; i<radioButton.length; i++) {
 3633: 		radioButton[i].checked=false;
 3634: 
 3635: 	    }
 3636: 	    textbox.value = "";
 3637: 
 3638: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3639: 		var user = document.classgrade["ctr"+i].value;
 3640: 		user = user.replace(new RegExp(':', 'g'),"_");
 3641: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3642: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3643: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3644: 		if ((saveval != "correct") || override) {
 3645: 		    scorename.value = "";
 3646: 		    if (selval[1].selected) {
 3647: 			selname[1].selected = true;
 3648: 		    } else {
 3649: 			selname[2].selected = true;
 3650: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
 3651: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
 3652: 		    }
 3653: 		}
 3654: 	    }
 3655: 	} else {
 3656: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3657: 		var user = document.classgrade["ctr"+i].value;
 3658: 		user = user.replace(new RegExp(':', 'g'),"_");
 3659: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3660: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3661: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3662: 		if ((saveval != "correct") || override) {
 3663: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3664: 		    selname[0].selected = true;
 3665: 		}
 3666: 	    }
 3667: 	}	    
 3668:     }
 3669: 
 3670:     function changeSelect(partid,user) {
 3671: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3672: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
 3673: 	var point  = textbox.value;
 3674: 	var weight = document.classgrade["weight_"+partid].value;
 3675: 
 3676: 	if (isNaN(point) || parseFloat(point) < 0) {
 3677: 	    alert("$alertmsg"+parseFloat(point));
 3678: 	    textbox.value = "";
 3679: 	    return;
 3680: 	}
 3681: 	if (parseFloat(point) > parseFloat(weight)) {
 3682: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
 3683: 			       ") greater than the weight of the part. Accept?");
 3684: 	    if (resp == false) {
 3685: 		textbox.value = "";
 3686: 		return;
 3687: 	    }
 3688: 	}
 3689: 	selval[0].selected = true;
 3690:     }
 3691: 
 3692:     function changeOneScore(partid,user) {
 3693: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3694: 	if (selval[1].selected || selval[2].selected) {
 3695: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
 3696: 	    if (selval[2].selected) {
 3697: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
 3698: 	    }
 3699:         }
 3700:     }
 3701: 
 3702:     function resetEntry(numpart) {
 3703: 	for (ctpart=0;ctpart<numpart;ctpart++) {
 3704: 	    var partid = document.classgrade["partid_"+ctpart].value;
 3705: 	    var radioButton = document.classgrade["RADVAL_"+partid];
 3706: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
 3707: 	    var selval  = document.classgrade["SELVAL_"+partid];
 3708: 	    for (var i=0; i<radioButton.length; i++) {
 3709: 		radioButton[i].checked=false;
 3710: 
 3711: 	    }
 3712: 	    textbox.value = "";
 3713: 	    selval[0].selected = true;
 3714: 
 3715: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3716: 		var user = document.classgrade["ctr"+i].value;
 3717: 		user = user.replace(new RegExp(':', 'g'),"_");
 3718: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3719: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3720: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
 3721: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
 3722: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3723: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3724: 		if (saveselval == "excused") {
 3725: 		    if (selname[1].selected == false) { selname[1].selected = true;}
 3726: 		} else {
 3727: 		    if (selname[0].selected == false) {selname[0].selected = true};
 3728: 		}
 3729: 	    }
 3730: 	}
 3731:     }
 3732: 
 3733: </script>
 3734: VIEWJAVASCRIPT
 3735: }
 3736: 
 3737: #--- show scores for a section or whole class w/ option to change/update a score
 3738: sub viewgrades {
 3739:     my ($request) = shift;
 3740:     &viewgrades_js($request);
 3741: 
 3742:     my ($symb) = &get_symb($request);
 3743:     #need to make sure we have the correct data for later EXT calls, 
 3744:     #thus invalidate the cache
 3745:     &Apache::lonnet::devalidatecourseresdata(
 3746:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 3747:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 3748:     &Apache::lonnet::clear_EXT_cache_status();
 3749: 
 3750:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
 3751:     $result.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 3752: 
 3753:     #view individual student submission form - called using Javascript viewOneStudent
 3754:     $result.=&jscriptNform($symb);
 3755: 
 3756:     #beginning of class grading form
 3757:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 3758:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
 3759: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 3760: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
 3761: 	&build_section_inputs().
 3762: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 3763: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 3764: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 3765: 
 3766:     #retrieve selected groups
 3767:     my (@groups,$group_display);
 3768:     @groups = &Apache::loncommon::get_env_multiple('form.group');
 3769:     if (grep(/^all$/,@groups)) {
 3770:         @groups = ('all');
 3771:     } elsif (grep(/^none$/,@groups)) {
 3772:         @groups = ('none');
 3773:     } elsif (@groups > 0) {
 3774:         $group_display = join(', ',@groups);
 3775:     }
 3776: 
 3777:     my ($common_header,$specific_header,@sections,$section_display);
 3778:     @sections = &Apache::loncommon::get_env_multiple('form.section');
 3779:     if (grep(/^all$/,@sections)) {
 3780:         @sections = ('all');
 3781:         if ($group_display) {
 3782:             $common_header = &mt('Assign Common Grade to Students in Group(s) [_1]',$group_display);
 3783:             $specific_header = &mt('Assign Grade to Specific Students in Group(s) [_1]',$group_display);
 3784:         } elsif (grep(/^none$/,@groups)) {
 3785:             $common_header = &mt('Assign Common Grade to Students not assigned to any groups');
 3786:             $specific_header = &mt('Assign Grade to Specific Students not assigned to any groups');
 3787:         } else {
 3788:             $common_header = &mt('Assign Common Grade to Class');
 3789:             $specific_header = &mt('Assign Grade to Specific Students in Class');
 3790:         }
 3791:     } elsif (grep(/^none$/,@sections)) {
 3792:         @sections = ('none');
 3793:         if ($group_display) {
 3794:             $common_header = &mt('Assign Common Grade to Students in no Section and in Group(s) [_1]',$group_display);
 3795:             $specific_header = &mt('Assign Grade to Specific Students in no Section and in Group(s)',$group_display);
 3796:         } elsif (grep(/^none$/,@groups)) {
 3797:             $common_header = &mt('Assign Common Grade to Students in no Section and in no Group');
 3798:             $specific_header = &mt('Assign Grade to Specific Students in no Section and in no Group');
 3799:         } else {
 3800:             $common_header = &mt('Assign Common Grade to Students in no Section');
 3801:             $specific_header = &mt('Assign Grade to Specific Students in no Section');
 3802:         }
 3803:     } else {
 3804:         $section_display = join (", ",@sections);
 3805:         if ($group_display) {
 3806:             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1], and in Group(s) [_2]',
 3807:                                  $section_display,$group_display);
 3808:             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1], and in Group(s) [_2]',
 3809:                                    $section_display,$group_display);
 3810:         } elsif (grep(/^none$/,@groups)) {
 3811:             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1] and no Group',$section_display);
 3812:             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1] and no Group',$section_display);
 3813:         } else {
 3814:             $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
 3815:             $specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
 3816:         }
 3817:     }
 3818:     my %submit_types = &substatus_options();
 3819:     my $submission_status = $submit_types{$env{'form.submitonly'}};
 3820: 
 3821:     if ($env{'form.submitonly'} eq 'all') {
 3822:         $result.= '<h3>'.$common_header.'</h3>';
 3823:     } else {
 3824:         $result.= '<h3>'.$common_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>'; 
 3825:     }
 3826:     $result .= &Apache::loncommon::start_data_table();
 3827:     #radio buttons/text box for assigning points for a section or class.
 3828:     #handles different parts of a problem
 3829:     my $res_error;
 3830:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3831:     if ($res_error) {
 3832:         return &navmap_errormsg();
 3833:     }
 3834:     my %weight = ();
 3835:     my $ctsparts = 0;
 3836:     my %seen = ();
 3837:     my @part_response_id = &flatten_responseType($responseType);
 3838:     foreach my $part_response_id (@part_response_id) {
 3839:     	my ($partid,$respid) = @{ $part_response_id };
 3840: 	my $part_resp = join('_',@{ $part_response_id });
 3841: 	next if $seen{$partid};
 3842: 	$seen{$partid}++;
 3843: 	my $handgrade=$$handgrade{$part_resp};
 3844: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 3845: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 3846: 
 3847: 	my $display_part=&get_display_part($partid,$symb);
 3848: 	my $radio.='<table border="0"><tr>';  
 3849: 	my $ctr = 0;
 3850: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
 3851: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
 3852: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
 3853: 		','.$ctr.')" />'.$ctr."</label></td>\n";
 3854: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 3855: 	    $ctr++;
 3856: 	}
 3857: 	$radio.='</tr></table>';
 3858: 	my $line = '<input type="text" name="TEXTVAL_'.
 3859: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 3860: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 3861: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
 3862: 	$line.= '<td><b>'.&mt('Grade Status').':</b>'.
 3863:                 '<select name="SELVAL_'.$partid.'" '.
 3864: 	        'onchange="javascript:writeRadText(\''.$partid.'\','.
 3865: 		$weight{$partid}.')"> '.
 3866: 	    '<option selected="selected"> </option>'.
 3867: 	    '<option value="excused">'.&mt('excused').'</option>'.
 3868: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
 3869: 	    '</select></td>'.
 3870:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
 3871: 	$line.='<input type="hidden" name="partid_'.
 3872: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
 3873: 	$line.='<input type="hidden" name="weight_'.
 3874: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
 3875: 
 3876: 	$result.=
 3877: 	    &Apache::loncommon::start_data_table_row()."\n".
 3878: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
 3879: 	    &Apache::loncommon::end_data_table_row()."\n";
 3880: 	$ctsparts++;
 3881:     }
 3882:     $result.=&Apache::loncommon::end_data_table()."\n".
 3883: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
 3884:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
 3885: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
 3886: 
 3887:     #table listing all the students in a section/class
 3888:     #header of table
 3889:     if ($env{'form.submitonly'} eq 'all') { 
 3890:         $result.= '<h3>'.$specific_header.'</h3>';
 3891:     } else {
 3892:         $result.= '<h3>'.$specific_header.'&nbsp;'.&mt('(submission status: "[_1]")',$submission_status).'</h3>';
 3893:     }
 3894:     $result.= &Apache::loncommon::start_data_table().
 3895: 	      &Apache::loncommon::start_data_table_header_row().
 3896: 	      '<th>'.&mt('No.').'</th>'.
 3897: 	      '<th>'.&nameUserString('header')."</th>\n";
 3898:     my $partserror;
 3899:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3900:     if ($partserror) {
 3901:         return &navmap_errormsg();
 3902:     }
 3903:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
 3904:     my @partids = ();
 3905:     foreach my $part (@parts) {
 3906: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3907:         my $narrowtext = &mt('Tries');
 3908: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
 3909: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
 3910: 	my ($partid) = &split_part_type($part);
 3911:         push(@partids,$partid);
 3912: 	my $display_part=&get_display_part($partid,$symb);
 3913: 	if ($display =~ /^Partial Credit Factor/) {
 3914: 	    $result.='<th>'.
 3915:                 &mt('Score Part: [_1][_2](weight = [_3])',
 3916:                     $display_part,'<br />',$weight{$partid}).'</th>'."\n";
 3917: 	    next;
 3918: 	    
 3919: 	} else {
 3920: 	    if ($display =~ /Problem Status/) {
 3921: 		my $grade_status_mt = &mt('Grade Status');
 3922: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
 3923: 	    }
 3924: 	    my $part_mt = &mt('Part:');
 3925: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
 3926: 	}
 3927: 
 3928: 	$result.='<th>'.$display.'</th>'."\n";
 3929:     }
 3930:     $result.=&Apache::loncommon::end_data_table_header_row();
 3931: 
 3932:     my %last_resets = 
 3933: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
 3934: 
 3935:     #get info for each student
 3936:     #list all the students - with points and grade status
 3937:     my (undef,undef,$fullname) = &getclasslist(\@sections,'1',\@groups);
 3938:     my $ctr = 0;
 3939:     foreach (sort 
 3940: 	     {
 3941: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3942: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3943: 		 }
 3944: 		 return $a cmp $b;
 3945: 	     } (keys(%$fullname))) {
 3946: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
 3947: 				   $_,$$fullname{$_},\@parts,\%weight,\$ctr,\%last_resets);
 3948:     }
 3949:     $result.=&Apache::loncommon::end_data_table();
 3950:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
 3951:     $result.='<input type="button" value="'.&mt('Save').'" '.
 3952: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
 3953:     if ($ctr == 0) {
 3954:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
 3955:         $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>'.
 3956:                 '<span class="LC_warning">';
 3957:         if ($env{'form.submitonly'} eq 'all') {
 3958:             if (grep(/^all$/,@sections)) {
 3959:                 if (grep(/^all$/,@groups)) {
 3960:                     $result .= &mt('There are no students with enrollment status [_1] to modify or grade.',
 3961:                                    $stu_status);
 3962:                 } elsif (grep(/^none$/,@groups)) {
 3963:                     $result .= &mt('There are no students with no group assigned and with enrollment status [_1] to modify or grade.',
 3964:                                    $stu_status);
 3965:                 } else {
 3966:                     $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] to modify or grade.',
 3967:                                    $group_display,$stu_status);
 3968:                 }
 3969:             } elsif (grep(/^none$/,@sections)) {
 3970:                 if (grep(/^all$/,@groups)) {
 3971:                     $result .= &mt('There are no students in no section with enrollment status [_1] to modify or grade.',
 3972:                                    $stu_status);
 3973:                 } elsif (grep(/^none$/,@groups)) {
 3974:                     $result .= &mt('There are no students in no section and no group with enrollment status [_1] to modify or grade.',
 3975:                                    $stu_status);
 3976:                 } else {
 3977:                     $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] to modify or grade.',
 3978:                                    $group_display,$stu_status);
 3979:                 }
 3980:             } else {
 3981:                 if (grep(/^all$/,@groups)) {
 3982:                     $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
 3983:                                    $section_display,$stu_status);
 3984:                 } elsif (grep(/^none$/,@groups)) {
 3985:                     $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] to modify or grade.',
 3986:                                    $section_display,$stu_status);
 3987:                 } else {
 3988:                     $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] to modify or grade.',
 3989:                                    $section_display,$group_display,$stu_status);
 3990:                 }
 3991:             }
 3992:         } else {
 3993:             if (grep(/^all$/,@sections)) {
 3994:                 if (grep(/^all$/,@groups)) {
 3995:                     $result .= &mt('There are no students with enrollment status [_1] and submission status "[_2]" to modify or grade.',
 3996:                                    $stu_status,$submission_status);
 3997:                 } elsif (grep(/^none$/,@groups)) {
 3998:                     $result .= &mt('There are no students with no group assigned with enrollment status [_1] and submission status "[_2]" to modify or grade.',
 3999:                                    $stu_status,$submission_status);
 4000:                 } else {
 4001:                     $result .= &mt('There are no students in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
 4002:                                    $group_display,$stu_status,$submission_status);
 4003:                 }
 4004:             } elsif (grep(/^none$/,@sections)) {
 4005:                 if (grep(/^all$/,@groups)) {
 4006:                     $result .= &mt('There are no students in no section with enrollment status [_1] and submission status "[_2]" to modify or grade.',
 4007:                                    $stu_status,$submission_status);
 4008:                 } elsif (grep(/^none$/,@groups)) {
 4009:                     $result .= &mt('There are no students in no section and no group with enrollment status [_1] and submission status "[_2]" to modify or grade.',
 4010:                                    $stu_status,$submission_status);
 4011:                 } else {
 4012:                     $result .= &mt('There are no students in no section in group(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
 4013:                                    $group_display,$stu_status,$submission_status);
 4014:                 }
 4015:             } else {
 4016:                 if (grep(/^all$/,@groups)) {
 4017:                     $result .= &mt('There are no students in section(s) [_1] with enrollment status [_2] and submission status "[_3]" to modify or grade.',
 4018:                                    $section_display,$stu_status,$submission_status);
 4019:                 } elsif (grep(/^none$/,@groups)) {
 4020:                     $result .= &mt('There are no students in section(s) [_1] and no group with enrollment status [_2] and submission status "[_3]" to modify or grade.',
 4021:                                    $section_display,$stu_status,$submission_status);
 4022:                 } else {
 4023:                     $result .= &mt('There are no students in section(s) [_1] and group(s) [_2] with enrollment status [_3] and submission status "[_4]" to modify or grade.',
 4024:                                    $section_display,$group_display,$stu_status,$submission_status);
 4025:                 }
 4026:             }
 4027: 	}
 4028: 	$result .= '</span><br />';
 4029:     }
 4030:     $result.=&show_grading_menu_form($symb);
 4031:     return $result;
 4032: }
 4033: 
 4034: #--- call by previous routine to display each student who satisfies submission filter.
 4035: sub viewstudentgrade {
 4036:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
 4037:     my ($uname,$udom) = split(/:/,$student);
 4038:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
 4039:     my $submitonly = $env{'form.submitonly'};
 4040:     unless (($submitonly eq 'all') || ($submitonly eq 'queued')) {
 4041:         my %partstatus = ();
 4042:         if (ref($parts) eq 'ARRAY') {
 4043:             foreach my $apart (@{$parts}) {
 4044:                 my ($part,$type) = &split_part_type($apart);
 4045:                 my ($status,undef) = split(/_/,$record{"resource.$part.solved"},2);
 4046:                 $status = 'nothing' if ($status eq '');
 4047:                 $partstatus{$part}      = $status;
 4048:                 my $subkey = "resource.$part.submitted_by";
 4049:                 $partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
 4050:             }
 4051:             my $submitted = 0;
 4052:             my $graded = 0;
 4053:             my $incorrect = 0;
 4054:             foreach my $key (keys(%partstatus)) {
 4055:                 $submitted = 1 if ($partstatus{$key} ne 'nothing');
 4056:                 $graded = 1 if ($partstatus{$key} =~ /^ungraded/);
 4057:                 $incorrect = 1 if ($partstatus{$key} =~ /^incorrect/);
 4058: 
 4059:                 my $partid = (split(/\./,$key))[1];
 4060:                 if ($partstatus{'resource.'.$partid.'.'.$key.'.submitted_by'} ne '') {
 4061:                     $submitted = 0;
 4062:                 }
 4063:             }
 4064:             return if (!$submitted && ($submitonly eq 'yes' ||
 4065:                                        $submitonly eq 'incorrect' ||
 4066:                                        $submitonly eq 'graded'));
 4067:             return if (!$graded && ($submitonly eq 'graded'));
 4068:             return if (!$incorrect && $submitonly eq 'incorrect');
 4069:         }
 4070:     }
 4071:     if ($submitonly eq 'queued') {
 4072:         my ($cdom,$cnum) = split(/_/,$courseid);
 4073:         my %queue_status =
 4074:             &Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 4075:                                                     $udom,$uname);
 4076:         return if (!defined($queue_status{'gradingqueue'}));
 4077:     }
 4078:     $$ctr++;
 4079:     my %aggregates = ();
 4080:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
 4081: 	'<input type="hidden" name="ctr'.($$ctr-1).'" value="'.$student.'" />'.
 4082: 	"\n".$$ctr.'&nbsp;</td><td>&nbsp;'.
 4083: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 4084: 	'\');" target="_self">'.$fullname.'</a> '.
 4085: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
 4086:     $student=~s/:/_/; # colon doen't work in javascript for names
 4087:     foreach my $apart (@$parts) {
 4088: 	my ($part,$type) = &split_part_type($apart);
 4089: 	my $score=$record{"resource.$part.$type"};
 4090:         $result.='<td align="center">';
 4091:         my ($aggtries,$totaltries);
 4092:         unless (exists($aggregates{$part})) {
 4093: 	    $totaltries = $record{'resource.'.$part.'.tries'};
 4094: 
 4095: 	    $aggtries = $totaltries;
 4096:             if ($$last_resets{$part}) {  
 4097:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
 4098: 					   $part);
 4099:             }
 4100:             $result.='<input type="hidden" name="'.
 4101:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
 4102:             $result.='<input type="hidden" name="'.
 4103:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
 4104:             $aggregates{$part} = 1;
 4105:         }
 4106: 	if ($type eq 'awarded') {
 4107: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
 4108: 	    $result.='<input type="hidden" name="'.
 4109: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
 4110: 	    $result.='<input type="text" name="'.
 4111: 		'GD_'.$student.'_'.$part.'_awarded" '.
 4112:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
 4113: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
 4114: 	} elsif ($type eq 'solved') {
 4115: 	    my ($status,$foo)=split(/_/,$score,2);
 4116: 	    $status = 'nothing' if ($status eq '');
 4117: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
 4118: 		$part.'_solved_s" value="'.$status.'" />'."\n";
 4119: 	    $result.='&nbsp;<select name="'.
 4120: 		'GD_'.$student.'_'.$part.'_solved" '.
 4121:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
 4122: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
 4123: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
 4124: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
 4125: 	    $result.="</select>&nbsp;</td>\n";
 4126: 	} else {
 4127: 	    $result.='<input type="hidden" name="'.
 4128: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
 4129: 		    "\n";
 4130: 	    $result.='<input type="text" name="'.
 4131: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
 4132: 		'value="'.$score.'" size="4" /></td>'."\n";
 4133: 	}
 4134:     }
 4135:     $result.=&Apache::loncommon::end_data_table_row();
 4136:     return $result;
 4137: }
 4138: 
 4139: #--- change scores for all the students in a section/class
 4140: #    record does not get update if unchanged
 4141: sub editgrades {
 4142:     my ($request) = @_;
 4143: 
 4144:     my ($symb)=&get_symb($request);
 4145:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 4146:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
 4147:     $title.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 4148:     $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
 4149: 
 4150:     my $result= &Apache::loncommon::start_data_table().
 4151: 	&Apache::loncommon::start_data_table_header_row().
 4152: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
 4153: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
 4154:     my %scoreptr = (
 4155: 		    'correct'  =>'correct_by_override',
 4156: 		    'incorrect'=>'incorrect_by_override',
 4157: 		    'excused'  =>'excused',
 4158: 		    'ungraded' =>'ungraded_attempted',
 4159:                     'credited' =>'credit_attempted',
 4160: 		    'nothing'  => '',
 4161: 		    );
 4162:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 4163: 
 4164:     my (@partid);
 4165:     my %weight = ();
 4166:     my %columns = ();
 4167:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
 4168: 
 4169:     my $partserror;
 4170:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 4171:     if ($partserror) {
 4172:         return &navmap_errormsg();
 4173:     }
 4174:     my $header;
 4175:     while ($ctr < $env{'form.totalparts'}) {
 4176: 	my $partid = $env{'form.partid_'.$ctr};
 4177: 	push(@partid,$partid);
 4178: 	$weight{$partid} = $env{'form.weight_'.$partid};
 4179: 	$ctr++;
 4180:     }
 4181:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4182:     my $totcolspan = 0;
 4183:     foreach my $partid (@partid) {
 4184: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
 4185: 	    '<th align="center">'.&mt('New Score').'</th>';
 4186: 	$columns{$partid}=2;
 4187: 	foreach my $stores (@parts) {
 4188: 	    my ($part,$type) = &split_part_type($stores);
 4189: 	    if ($part !~ m/^\Q$partid\E/) { next;}
 4190: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
 4191: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
 4192: 	    $display =~ s/\[Part: \Q$part\E\]//;
 4193:             my $narrowtext = &mt('Tries');
 4194: 	    $display =~ s/Number of Attempts/$narrowtext/;
 4195: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
 4196: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
 4197: 	    $columns{$partid}+=2;
 4198: 	}
 4199:         $totcolspan += $columns{$partid};
 4200:     }
 4201:     foreach my $partid (@partid) {
 4202: 	my $display_part=&get_display_part($partid,$symb);
 4203: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
 4204: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
 4205: 	    '</th>';
 4206: 
 4207:     }
 4208:     $result .= &Apache::loncommon::end_data_table_header_row().
 4209: 	&Apache::loncommon::start_data_table_header_row().
 4210: 	$header.
 4211: 	&Apache::loncommon::end_data_table_header_row();
 4212:     my @noupdate;
 4213:     my ($updateCtr,$noupdateCtr) = (1,1);
 4214:     for ($i=0; $i<$env{'form.total'}; $i++) {
 4215: 	my $user = $env{'form.ctr'.$i};
 4216: 	my ($uname,$udom)=split(/:/,$user);
 4217: 	my %newrecord;
 4218: 	my $updateflag = 0;
 4219: 	my $usec=$classlist->{"$uname:$udom"}[5];
 4220:         my $canmodify = &canmodify($usec);
 4221:         my $line = '<td'.($canmodify?'':' colspan="2"').'>'.
 4222:                    &nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
 4223:         if (!$canmodify) {
 4224:             push(@noupdate,
 4225:                  $line."<td colspan=\"$totcolspan\"><span class=\"LC_warning\">".
 4226:                  &mt('Not allowed to modify student')."</span></td>");
 4227:             next;
 4228:         }
 4229:         my %aggregate = ();
 4230:         my $aggregateflag = 0;
 4231: 	$user=~s/:/_/; # colon doen't work in javascript for names
 4232: 	foreach (@partid) {
 4233: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 4234: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
 4235: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
 4236: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 4237: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 4238: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 4239: 	    my $partial   = $awarded eq '' ? '' : $pcr;
 4240: 	    my $score;
 4241: 	    if ($partial eq '') {
 4242: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 4243: 	    } elsif ($partial > 0) {
 4244: 		$score = 'correct_by_override';
 4245: 	    } elsif ($partial == 0) {
 4246: 		$score = 'incorrect_by_override';
 4247: 	    }
 4248: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
 4249: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
 4250: 
 4251: 	    $newrecord{'resource.'.$_.'.regrader'}=
 4252: 		"$env{'user.name'}:$env{'user.domain'}";
 4253: 	    if ($dropMenu eq 'reset status' &&
 4254: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
 4255: 		$newrecord{'resource.'.$_.'.tries'} = '';
 4256: 		$newrecord{'resource.'.$_.'.solved'} = '';
 4257: 		$newrecord{'resource.'.$_.'.award'} = '';
 4258: 		$newrecord{'resource.'.$_.'.awarded'} = '';
 4259: 		$updateflag = 1;
 4260:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
 4261:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
 4262:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
 4263:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
 4264:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 4265:                     $aggregateflag = 1;
 4266:                 }
 4267: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
 4268: 		$updateflag = 1;
 4269: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
 4270: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
 4271: 		$rec_update++;
 4272: 	    }
 4273: 
 4274: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 4275: 		'<td align="center">'.$awarded.
 4276: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
 4277: 
 4278: 
 4279: 	    my $partid=$_;
 4280: 	    foreach my $stores (@parts) {
 4281: 		my ($part,$type) = &split_part_type($stores);
 4282: 		if ($part !~ m/^\Q$partid\E/) { next;}
 4283: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
 4284: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
 4285: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
 4286: 		if ($awarded ne '' && $awarded ne $old_aw) {
 4287: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
 4288: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 4289: 		    $updateflag=1;
 4290: 		}
 4291: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 4292: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
 4293: 	    }
 4294: 	}
 4295: 	$line.="\n";
 4296: 
 4297: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 4298: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 4299: 
 4300: 	if ($updateflag) {
 4301: 	    $count++;
 4302: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
 4303: 				    $udom,$uname);
 4304: 
 4305: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
 4306: 					      $cnum,$udom,$uname)) {
 4307: 		# need to figure out if should be in queue.
 4308: 		my %record =  
 4309: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
 4310: 					     $udom,$uname);
 4311: 		my $all_graded = 1;
 4312: 		my $none_graded = 1;
 4313: 		foreach my $part (@parts) {
 4314: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
 4315: 			$all_graded = 0;
 4316: 		    } else {
 4317: 			$none_graded = 0;
 4318: 		    }
 4319: 		}
 4320: 
 4321: 		if ($all_graded || $none_graded) {
 4322: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 4323: 							   $symb,$cdom,$cnum,
 4324: 							   $udom,$uname);
 4325: 		}
 4326: 	    }
 4327: 
 4328: 	    $result.=&Apache::loncommon::start_data_table_row().
 4329: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 4330: 		&Apache::loncommon::end_data_table_row();
 4331: 	    $updateCtr++;
 4332: 	} else {
 4333: 	    push(@noupdate,
 4334: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
 4335: 	    $noupdateCtr++;
 4336: 	}
 4337:         if ($aggregateflag) {
 4338:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 4339: 				  $cdom,$cnum);
 4340:         }
 4341:     }
 4342:     if (@noupdate) {
 4343:         my $numcols=$totcolspan+2;
 4344: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
 4345: 	    '<td align="center" colspan="'.$numcols.'">'.
 4346: 	    &mt('No Changes Occurred For the Students Below').
 4347: 	    '</td>'.
 4348: 	    &Apache::loncommon::end_data_table_row();
 4349: 	foreach my $line (@noupdate) {
 4350: 	    $result.=
 4351: 		&Apache::loncommon::start_data_table_row().
 4352: 		$line.
 4353: 		&Apache::loncommon::end_data_table_row();
 4354: 	}
 4355:     }
 4356:     $result .= &Apache::loncommon::end_data_table().
 4357: 	&show_grading_menu_form($symb);
 4358:     my $msg = '<p><b>'.
 4359: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
 4360: 	    $rec_update,$count).'</b><br />'.
 4361: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
 4362: 	'</b></p>';
 4363:     return $title.$msg.$result;
 4364: }
 4365: 
 4366: sub split_part_type {
 4367:     my ($partstr) = @_;
 4368:     my ($temp,@allparts)=split(/_/,$partstr);
 4369:     my $type=pop(@allparts);
 4370:     my $part=join('_',@allparts);
 4371:     return ($part,$type);
 4372: }
 4373: 
 4374: #------------- end of section for handling grading by section/class ---------
 4375: #
 4376: #----------------------------------------------------------------------------
 4377: 
 4378: 
 4379: #----------------------------------------------------------------------------
 4380: #
 4381: #-------------------------- Next few routines handles grading by csv upload
 4382: #
 4383: #--- Javascript to handle csv upload
 4384: sub csvupload_javascript_reverse_associate {
 4385:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4386:     my $error2=&mt('You need to specify at least one grading field');
 4387:   &js_escape(\$error1);
 4388:   &js_escape(\$error2);
 4389:   return(<<ENDPICK);
 4390:   function verify(vf) {
 4391:     var foundsomething=0;
 4392:     var founduname=0;
 4393:     var foundID=0;
 4394:     for (i=0;i<=vf.nfields.value;i++) {
 4395:       tw=eval('vf.f'+i+'.selectedIndex');
 4396:       if (i==0 && tw!=0) { foundID=1; }
 4397:       if (i==1 && tw!=0) { founduname=1; }
 4398:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
 4399:     }
 4400:     if (founduname==0 && foundID==0) {
 4401: 	alert('$error1');
 4402: 	return;
 4403:     }
 4404:     if (foundsomething==0) {
 4405: 	alert('$error2');
 4406: 	return;
 4407:     }
 4408:     vf.submit();
 4409:   }
 4410:   function flip(vf,tf) {
 4411:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4412:     var i;
 4413:     for (i=0;i<=vf.nfields.value;i++) {
 4414:       //can not pick the same destination field for both name and domain
 4415:       if (((i ==0)||(i ==1)) && 
 4416:           ((tf==0)||(tf==1)) && 
 4417:           (i!=tf) &&
 4418:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4419:         eval('vf.f'+i+'.selectedIndex=0;')
 4420:       }
 4421:     }
 4422:   }
 4423: ENDPICK
 4424: }
 4425: 
 4426: sub csvupload_javascript_forward_associate {
 4427:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4428:     my $error2=&mt('You need to specify at least one grading field');
 4429:   &js_escape(\$error1);
 4430:   &js_escape(\$error2);
 4431:   return(<<ENDPICK);
 4432:   function verify(vf) {
 4433:     var foundsomething=0;
 4434:     var founduname=0;
 4435:     var foundID=0;
 4436:     for (i=0;i<=vf.nfields.value;i++) {
 4437:       tw=eval('vf.f'+i+'.selectedIndex');
 4438:       if (tw==1) { foundID=1; }
 4439:       if (tw==2) { founduname=1; }
 4440:       if (tw>3) { foundsomething=1; }
 4441:     }
 4442:     if (founduname==0 && foundID==0) {
 4443: 	alert('$error1');
 4444: 	return;
 4445:     }
 4446:     if (foundsomething==0) {
 4447: 	alert('$error2');
 4448: 	return;
 4449:     }
 4450:     vf.submit();
 4451:   }
 4452:   function flip(vf,tf) {
 4453:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4454:     var i;
 4455:     //can not pick the same destination field twice
 4456:     for (i=0;i<=vf.nfields.value;i++) {
 4457:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4458:         eval('vf.f'+i+'.selectedIndex=0;')
 4459:       }
 4460:     }
 4461:   }
 4462: ENDPICK
 4463: }
 4464: 
 4465: sub csvuploadmap_header {
 4466:     my ($request,$symb,$datatoken,$distotal)= @_;
 4467:     my $javascript;
 4468:     if ($env{'form.upfile_associate'} eq 'reverse') {
 4469: 	$javascript=&csvupload_javascript_reverse_associate();
 4470:     } else {
 4471: 	$javascript=&csvupload_javascript_forward_associate();
 4472:     }
 4473: 
 4474:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 4475:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
 4476:     my $ignore=&mt('Ignore First Line');
 4477:     $symb = &Apache::lonenc::check_encrypt($symb);
 4478:     $request->print(<<ENDPICK);
 4479: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4480: <h3><span class="LC_info">Uploading Class Grades</span></h3>
 4481: $result
 4482: <hr />
 4483: <h3>Identify fields</h3>
 4484: Total number of records found in file: $distotal <hr />
 4485: Enter as many fields as you can. The system will inform you and bring you back
 4486: to this page if the data selected is insufficient to run your class.<hr />
 4487: <input type="button" value="Reverse Association" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
 4488: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 4489: <input type="hidden" name="associate"  value="" />
 4490: <input type="hidden" name="phase"      value="three" />
 4491: <input type="hidden" name="datatoken"  value="$datatoken" />
 4492: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 4493: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 4494: <input type="hidden" name="upfile_associate" 
 4495:                                        value="$env{'form.upfile_associate'}" />
 4496: <input type="hidden" name="symb"       value="$symb" />
 4497: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4498: <input type="hidden" name="probTitle"  value="$env{'form.probTitle'}" />
 4499: <input type="hidden" name="command"    value="csvuploadoptions" />
 4500: <hr />
 4501: <script type="text/javascript" language="Javascript">
 4502: $javascript
 4503: </script>
 4504: ENDPICK
 4505:     return '';
 4506: 
 4507: }
 4508: 
 4509: sub csvupload_fields {
 4510:     my ($symb,$errorref) = @_;
 4511:     my (@parts) = &getpartlist($symb,$errorref);
 4512:     if (ref($errorref)) {
 4513:         if ($$errorref) {
 4514:             return;
 4515:         }
 4516:     }
 4517: 
 4518:     my @fields=(['ID','Student/Employee ID'],
 4519: 		['username','Student Username'],
 4520: 		['domain','Student Domain']);
 4521:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4522:     foreach my $part (sort(@parts)) {
 4523: 	my @datum;
 4524: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 4525: 	my $name=$part;
 4526: 	if  (!$display) { $display = $name; }
 4527: 	@datum=($name,$display);
 4528: 	if ($name=~/^stores_(.*)_awarded/) {
 4529: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
 4530: 	}
 4531: 	push(@fields,\@datum);
 4532:     }
 4533:     return (@fields);
 4534: }
 4535: 
 4536: sub csvuploadmap_footer {
 4537:     my ($request,$i,$keyfields) =@_;
 4538:     my $buttontext = &mt('Assign Grades');
 4539:     $request->print(<<ENDPICK);
 4540: </table>
 4541: <input type="hidden" name="nfields" value="$i" />
 4542: <input type="hidden" name="keyfields" value="$keyfields" />
 4543: <input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
 4544: </form>
 4545: ENDPICK
 4546: }
 4547: 
 4548: sub checkforfile_js {
 4549:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 4550:     &js_escape(\$alertmsg);
 4551:     my $result =<<CSVFORMJS;
 4552: <script type="text/javascript" language="javascript">
 4553:     function checkUpload(formname) {
 4554: 	if (formname.upfile.value == "") {
 4555: 	    alert("$alertmsg");
 4556: 	    return false;
 4557: 	}
 4558: 	formname.submit();
 4559:     }
 4560:     </script>
 4561: CSVFORMJS
 4562:     return $result;
 4563: }
 4564: 
 4565: sub upcsvScores_form {
 4566:     my ($request) = shift;
 4567:     my ($symb)=&get_symb($request);
 4568:     if (!$symb) {return '';}
 4569:     my $result=&checkforfile_js();
 4570:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 4571:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 4572:     $result.=$table;
 4573:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 4574:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 4575:     $result.='&nbsp;<b>'.&mt('Specify a file containing the class scores for current resource.').
 4576: 	'</b></td></tr>'."\n";
 4577:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
 4578:     my $upload=&mt("Upload Scores");
 4579:     my $upfile_select=&Apache::loncommon::upfile_select_html();
 4580:     my $ignore=&mt('Ignore First Line');
 4581:     $symb = &Apache::lonenc::check_encrypt($symb);
 4582:     $result.=<<ENDUPFORM;
 4583: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4584: <input type="hidden" name="symb" value="$symb" />
 4585: <input type="hidden" name="command" value="csvuploadmap" />
 4586: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 4587: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4588: $upfile_select
 4589: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 4590: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
 4591: </form>
 4592: ENDUPFORM
 4593:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 4594:                            &mt("How do I create a CSV file from a spreadsheet"))
 4595:     .'</td></tr></table>'."\n";
 4596:     $result.='</td></tr></table><br /><br />'."\n";
 4597:     $result.=&show_grading_menu_form($symb);
 4598:     return $result;
 4599: }
 4600: 
 4601: 
 4602: sub csvuploadmap {
 4603:     my ($request)= @_;
 4604:     my ($symb)=&get_symb($request);
 4605:     if (!$symb) {return '';}
 4606: 
 4607:     my $datatoken;
 4608:     if (!$env{'form.datatoken'}) {
 4609: 	$datatoken=&Apache::loncommon::upfile_store($request);
 4610:     } else {
 4611:         $datatoken=&Apache::loncommon::valid_datatoken($env{'form.datatoken'});
 4612:         if ($datatoken ne '') {
 4613:             &Apache::loncommon::load_tmp_file($request,$datatoken);
 4614:         }
 4615:     }
 4616:     my @records=&Apache::loncommon::upfile_record_sep();
 4617:     if ($env{'form.noFirstLine'}) { shift(@records); }
 4618:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
 4619:     my ($i,$keyfields);
 4620:     if (@records) {
 4621:         my $fieldserror;
 4622: 	my @fields=&csvupload_fields($symb,\$fieldserror);
 4623:         if ($fieldserror) {
 4624:             $request->print(&navmap_errormsg());
 4625:             return;
 4626:         }
 4627: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 4628: 	    &Apache::loncommon::csv_print_samples($request,\@records);
 4629: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
 4630: 							  \@fields);
 4631: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 4632: 	    chop($keyfields);
 4633: 	} else {
 4634: 	    unshift(@fields,['none','']);
 4635: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
 4636: 							    \@fields);
 4637:             foreach my $rec (@records) {
 4638:                 my %temp = &Apache::loncommon::record_sep($rec);
 4639:                 if (%temp) {
 4640:                     $keyfields=join(',',sort(keys(%temp)));
 4641:                     last;
 4642:                 }
 4643:             }
 4644: 	}
 4645:     }
 4646:     &csvuploadmap_footer($request,$i,$keyfields);
 4647:     $request->print(&show_grading_menu_form($symb));
 4648: 
 4649:     return '';
 4650: }
 4651: 
 4652: sub csvuploadoptions {
 4653:     my ($request)= @_;
 4654:     my ($symb)=&get_symb($request);
 4655:     my $checked=(($env{'form.noFirstLine'})?'1':'0');
 4656:     my $ignore=&mt('Ignore First Line');
 4657:     $request->print(<<ENDPICK);
 4658: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4659: <h3><span class="LC_info">Uploading Class Grade Options</span></h3>
 4660: <input type="hidden" name="command"    value="csvuploadassign" />
 4661: <!--
 4662: <p>
 4663: <label>
 4664:    <input type="checkbox" name="show_full_results" />
 4665:    Show a table of all changes
 4666: </label>
 4667: </p>
 4668: -->
 4669: <p>
 4670: <label>
 4671:    <input type="checkbox" name="overwite_scores" checked="checked" />
 4672:    Overwrite any existing score
 4673: </label>
 4674: </p>
 4675: ENDPICK
 4676:     my %fields=&get_fields();
 4677:     if (!defined($fields{'domain'})) {
 4678: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
 4679: 	$request->print("\n<p> Users are in domain: ".$domform."</p>\n");
 4680:     }
 4681:     foreach my $key (sort(keys(%env))) {
 4682: 	if ($key !~ /^form\.(.*)$/) { next; }
 4683: 	my $cleankey=$1;
 4684: 	if ($cleankey eq 'command') { next; }
 4685: 	$request->print('<input type="hidden" name="'.$cleankey.
 4686: 			'"  value="'.$env{$key}.'" />'."\n");
 4687:     }
 4688:     # FIXME do a check for any duplicated user ids...
 4689:     # FIXME do a check for any invalid user ids?...
 4690:     $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
 4691: <hr /></form>'."\n");
 4692:     $request->print(&show_grading_menu_form($symb));
 4693:     return '';
 4694: }
 4695: 
 4696: sub get_fields {
 4697:     my %fields;
 4698:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 4699:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 4700: 	if ($env{'form.upfile_associate'} eq 'reverse') {
 4701: 	    if ($env{'form.f'.$i} ne 'none') {
 4702: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
 4703: 	    }
 4704: 	} else {
 4705: 	    if ($env{'form.f'.$i} ne 'none') {
 4706: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
 4707: 	    }
 4708: 	}
 4709:     }
 4710:     return %fields;
 4711: }
 4712: 
 4713: sub csvuploadassign {
 4714:     my ($request)= @_;
 4715:     my ($symb)=&get_symb($request);
 4716:     if (!$symb) {return '';}
 4717:     my $error_msg = '';
 4718:     my $datatoken = &Apache::loncommon::valid_datatoken($env{'form.datatoken'});
 4719:     if ($datatoken ne '') {
 4720:         &Apache::loncommon::load_tmp_file($request,$datatoken);
 4721:     }
 4722:     my @gradedata = &Apache::loncommon::upfile_record_sep();
 4723:     if ($env{'form.noFirstLine'}) { shift(@gradedata); }
 4724:     my %fields=&get_fields();
 4725:     $request->print('<h3>Assigning Grades</h3>');
 4726:     my $courseid=$env{'request.course.id'};
 4727:     my ($classlist) = &getclasslist('all',0);
 4728:     my @notallowed;
 4729:     my @skipped;
 4730:     my @warnings;
 4731:     my $countdone=0;
 4732:     foreach my $grade (@gradedata) {
 4733: 	my %entries=&Apache::loncommon::record_sep($grade);
 4734: 	my $domain;
 4735: 	if ($entries{$fields{'domain'}}) {
 4736: 	    $domain=$entries{$fields{'domain'}};
 4737: 	} else {
 4738: 	    $domain=$env{'form.default_domain'};
 4739: 	}
 4740: 	$domain=~s/\s//g;
 4741: 	my $username=$entries{$fields{'username'}};
 4742: 	$username=~s/\s//g;
 4743: 	if (!$username) {
 4744: 	    my $id=$entries{$fields{'ID'}};
 4745: 	    $id=~s/\s//g;
 4746: 	    my %ids=&Apache::lonnet::idget($domain,$id);
 4747: 	    $username=$ids{$id};
 4748: 	}
 4749: 	if (!exists($$classlist{"$username:$domain"})) {
 4750: 	    my $id=$entries{$fields{'ID'}};
 4751: 	    $id=~s/\s//g;
 4752: 	    if ($id) {
 4753: 		push(@skipped,"$id:$domain");
 4754: 	    } else {
 4755: 		push(@skipped,"$username:$domain");
 4756: 	    }
 4757: 	    next;
 4758: 	}
 4759: 	my $usec=$classlist->{"$username:$domain"}[5];
 4760: 	if (!&canmodify($usec)) {
 4761: 	    push(@notallowed,"$username:$domain");
 4762: 	    next;
 4763: 	}
 4764: 	my %points;
 4765: 	my %grades;
 4766: 	foreach my $dest (keys(%fields)) {
 4767: 	    if ($dest eq 'ID' || $dest eq 'username' ||
 4768: 		$dest eq 'domain') { next; }
 4769: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
 4770: 	    if ($dest=~/stores_(.*)_points/) {
 4771: 		my $part=$1;
 4772: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 4773: 					      $symb,$domain,$username);
 4774:                 if ($wgt) {
 4775:                     $entries{$fields{$dest}}=~s/\s//g;
 4776:                     my $pcr=$entries{$fields{$dest}} / $wgt;
 4777:                     my $award=($pcr == 0) ? 'incorrect_by_override'
 4778:                                           : 'correct_by_override';
 4779:                     if ($pcr>1) {
 4780:                         push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
 4781:                     }
 4782:                     $grades{"resource.$part.awarded"}=$pcr;
 4783:                     $grades{"resource.$part.solved"}=$award;
 4784:                     $points{$part}=1;
 4785:                 } else {
 4786:                     $error_msg = "<br />" .
 4787:                         &mt("Some point values were assigned"
 4788:                             ." for problems with a weight "
 4789:                             ."of zero. These values were "
 4790:                             ."ignored.");
 4791:                 }
 4792: 	    } else {
 4793: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 4794: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 4795: 		my $store_key=$dest;
 4796: 		$store_key=~s/^stores/resource/;
 4797: 		$store_key=~s/_/\./g;
 4798: 		$grades{$store_key}=$entries{$fields{$dest}};
 4799: 	    }
 4800: 	}
 4801: 	if (! %grades) { 
 4802:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
 4803:         } else {
 4804: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 4805: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
 4806: 					   $env{'request.course.id'},
 4807: 					   $domain,$username);
 4808: 	   if ($result eq 'ok') {
 4809: 	      $request->print('.');
 4810: # Remove from grading queue
 4811:               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
 4812:                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
 4813:                                              $env{'course.'.$env{'request.course.id'}.'.num'},
 4814:                                              $domain,$username);
 4815: 	   } else {
 4816: 	      $request->print("<p><span class=\"LC_error\">".
 4817:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
 4818:                                   "$username:$domain",$result)."</span></p>");
 4819: 	   }
 4820: 	   $request->rflush();
 4821: 	   $countdone++;
 4822:         }
 4823:     }
 4824:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
 4825:     if (@warnings) {
 4826:         $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
 4827:         $request->print(join(', ',@warnings));
 4828:     }
 4829:     if (@skipped) {
 4830: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
 4831:         $request->print(join(', ',@skipped));
 4832:     }
 4833:     if (@notallowed) {
 4834: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
 4835: 	$request->print(join(', ',@notallowed));
 4836:     }
 4837:     $request->print("<br />\n");
 4838:     $request->print(&show_grading_menu_form($symb));
 4839:     return $error_msg;
 4840: }
 4841: #------------- end of section for handling csv file upload ---------
 4842: #
 4843: #-------------------------------------------------------------------
 4844: #
 4845: #-------------- Next few routines handle grading by page/sequence
 4846: #
 4847: #--- Select a page/sequence and a student to grade
 4848: sub pickStudentPage {
 4849:     my ($request) = shift;
 4850: 
 4851:     my $alertmsg = &mt('Please select the student you wish to grade.');
 4852:     &js_escape(\$alertmsg);
 4853:     $request->print(<<LISTJAVASCRIPT);
 4854: <script type="text/javascript" language="javascript">
 4855: 
 4856: function checkPickOne(formname) {
 4857:     if (radioSelection(formname.student) == null) {
 4858: 	alert("$alertmsg");
 4859: 	return;
 4860:     }
 4861:     ptr = pullDownSelection(formname.selectpage);
 4862:     formname.page.value = formname["page"+ptr].value;
 4863:     formname.title.value = formname["title"+ptr].value;
 4864:     formname.submit();
 4865: }
 4866: 
 4867: </script>
 4868: LISTJAVASCRIPT
 4869:     &commonJSfunctions($request);
 4870:     my ($symb) = &get_symb($request);
 4871:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4872:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4873:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4874: 
 4875:     my $result='<h3><span class="LC_info">&nbsp;'.
 4876: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
 4877: 
 4878:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
 4879:     my $map_error;
 4880:     my ($titles,$symbx) = &getSymbMap($map_error);
 4881:     if ($map_error) {
 4882:         $request->print(&navmap_errormsg());
 4883:         return; 
 4884:     }
 4885:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 4886: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 4887: #    my $type=($curpage =~ /\.(page|sequence)/);
 4888:     my $select = '<select name="selectpage">'."\n";
 4889:     my $ctr=0;
 4890:     foreach (@$titles) {
 4891: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4892: 	$select.='<option value="'.$ctr.'" '.
 4893: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 4894: 	    '>'.$showtitle.'</option>'."\n";
 4895: 	$ctr++;
 4896:     }
 4897:     $select.= '</select>';
 4898:     $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
 4899: 
 4900:     $ctr=0;
 4901:     foreach (@$titles) {
 4902: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4903: 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
 4904: 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
 4905: 	$ctr++;
 4906:     }
 4907:     $result.='<input type="hidden" name="page" />'."\n".
 4908: 	'<input type="hidden" name="title" />'."\n";
 4909: 
 4910:     my $options =
 4911: 	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
 4912: 	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
 4913:     $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
 4914: 
 4915:     $options =
 4916: 	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
 4917: 	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
 4918: 	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
 4919:     $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
 4920:     
 4921:     $result.=&build_section_inputs();
 4922:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 4923:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
 4924: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
 4925: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4926: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."<br />\n";
 4927: 
 4928:     $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
 4929: 
 4930:     $result.='&nbsp;<input type="button" '.
 4931:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 4932: 
 4933:     $request->print($result);
 4934: 
 4935:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
 4936: 	&Apache::loncommon::start_data_table().
 4937: 	&Apache::loncommon::start_data_table_header_row().
 4938: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4939: 	'<th>'.&nameUserString('header').'</th>'.
 4940: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4941: 	'<th>'.&nameUserString('header').'</th>'.
 4942: 	&Apache::loncommon::end_data_table_header_row();
 4943:  
 4944:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
 4945:     my $ptr = 1;
 4946:     foreach my $student (sort 
 4947: 			 {
 4948: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 4949: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 4950: 			     }
 4951: 			     return $a cmp $b;
 4952: 			 } (keys(%$fullname))) {
 4953: 	my ($uname,$udom) = split(/:/,$student);
 4954: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
 4955:                                   : '</td>');
 4956: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
 4957: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
 4958: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
 4959: 	$studentTable.=
 4960: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
 4961:                          : '');
 4962: 	$ptr++;
 4963:     }
 4964:     if ($ptr%2 == 0) {
 4965: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
 4966: 	    &Apache::loncommon::end_data_table_row();
 4967:     }
 4968:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
 4969:     $studentTable.='<input type="button" '.
 4970:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
 4971: 
 4972:     $studentTable.=&show_grading_menu_form($symb);
 4973:     $request->print($studentTable);
 4974: 
 4975:     return '';
 4976: }
 4977: 
 4978: sub getSymbMap {
 4979:     my ($map_error) = @_;
 4980:     my $navmap = Apache::lonnavmaps::navmap->new();
 4981:     unless (ref($navmap)) {
 4982:         if (ref($map_error)) {
 4983:             $$map_error = 'navmap';
 4984:         }
 4985:         return;
 4986:     }
 4987:     my %symbx = ();
 4988:     my @titles = ();
 4989:     my $minder = 0;
 4990: 
 4991:     # Gather every sequence that has problems.
 4992:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 4993: 					       1,0,1);
 4994:     for my $sequence ($navmap->getById('0.0'), @sequences) {
 4995: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
 4996: 	    my $title = $minder.'.'.
 4997: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 4998: 	    push(@titles, $title); # minder in case two titles are identical
 4999: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
 5000: 	    $minder++;
 5001: 	}
 5002:     }
 5003:     return \@titles,\%symbx;
 5004: }
 5005: 
 5006: #
 5007: #--- Displays a page/sequence w/wo problems, w/wo submissions
 5008: sub displayPage {
 5009:     my ($request) = shift;
 5010: 
 5011:     my ($symb) = &get_symb($request);
 5012:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 5013:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 5014:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 5015:     my $pageTitle = $env{'form.page'};
 5016:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 5017:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 5018:     my $usec=$classlist->{$env{'form.student'}}[5];
 5019: 
 5020:     #need to make sure we have the correct data for later EXT calls, 
 5021:     #thus invalidate the cache
 5022:     &Apache::lonnet::devalidatecourseresdata(
 5023:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 5024:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 5025:     &Apache::lonnet::clear_EXT_cache_status();
 5026: 
 5027:     if (!&canview($usec)) {
 5028: 	$request->print('<span class="LC_warning">'.
 5029:                         &mt('Unable to view requested student. ([_1])',
 5030:                             $env{'form.student'}).
 5031:                         '</span>');
 5032:         $request->print(&show_grading_menu_form($symb));
 5033:         return;
 5034:     }
 5035:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 5036:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
 5037: 	'</h3>'."\n";
 5038:     $env{'form.CODE'} = uc($env{'form.CODE'});
 5039:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
 5040: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
 5041:     } else {
 5042: 	delete($env{'form.CODE'});
 5043:     }
 5044:     &sub_page_js($request);
 5045:     $request->print($result);
 5046: 
 5047:     my $navmap = Apache::lonnavmaps::navmap->new();
 5048:     unless (ref($navmap)) {
 5049:         $request->print(&navmap_errormsg());
 5050:         $request->print(&show_grading_menu_form($symb));
 5051:         return;
 5052:     }
 5053:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
 5054:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 5055:     if (!$map) {
 5056: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
 5057: 	$request->print(&show_grading_menu_form($symb));
 5058: 	return; 
 5059:     }
 5060:     my $iterator = $navmap->getIterator($map->map_start(),
 5061: 					$map->map_finish());
 5062: 
 5063:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
 5064: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
 5065: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
 5066: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
 5067: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
 5068: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
 5069: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 5070: 	'<input type="hidden" name="overRideScore" value="no" />'."\n".
 5071: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n";
 5072: 
 5073:     if (defined($env{'form.CODE'})) {
 5074: 	$studentTable.=
 5075: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
 5076:     }
 5077:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 5078: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 5079: 
 5080:     $studentTable.='&nbsp;<span class="LC_info">'.
 5081:         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
 5082:         '</span>'."\n".
 5083: 	&Apache::loncommon::start_data_table().
 5084: 	&Apache::loncommon::start_data_table_header_row().
 5085: 	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
 5086: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 5087: 	&Apache::loncommon::end_data_table_header_row();
 5088: 
 5089:     &Apache::lonxml::clear_problem_counter();
 5090:     my ($depth,$question,$prob) = (1,1,1);
 5091:     $iterator->next(); # skip the first BEGIN_MAP
 5092:     my $curRes = $iterator->next(); # for "current resource"
 5093:     while ($depth > 0) {
 5094:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 5095:         if($curRes == $iterator->END_MAP) { $depth--; }
 5096: 
 5097:         if (ref($curRes) && $curRes->is_problem()) {
 5098: 	    my $parts = $curRes->parts();
 5099:             my $title = $curRes->compTitle();
 5100: 	    my $symbx = $curRes->symb();
 5101: 	    $studentTable.=
 5102: 		&Apache::loncommon::start_data_table_row().
 5103: 		'<td align="center" valign="top" >'.$prob.
 5104: 		(scalar(@{$parts}) == 1 ? '' 
 5105: 		                        : '<br />('.&mt('[_1]parts',
 5106: 							scalar(@{$parts}).'&nbsp;').')'
 5107: 		 ).
 5108: 		 '</td>';
 5109: 	    $studentTable.='<td valign="top">';
 5110: 	    my %form = ('CODE' => $env{'form.CODE'},);
 5111: 	    if ($env{'form.vProb'} eq 'yes' ) {
 5112: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
 5113: 					     undef,'both',\%form);
 5114: 	    } else {
 5115: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
 5116: 		$companswer =~ s|<form(.*?)>||g;
 5117: 		$companswer =~ s|</form>||g;
 5118: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
 5119: #		    $companswer =~ s/$1/ /ms;
 5120: #		    $request->print('match='.$1."<br />\n");
 5121: #		}
 5122: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
 5123: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
 5124: 	    }
 5125: 
 5126: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 5127: 
 5128: 	    if ($env{'form.lastSub'} eq 'datesub') {
 5129: 		if ($record{'version'} eq '') {
 5130: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
 5131: 		} else {
 5132: 		    my %responseType = ();
 5133: 		    foreach my $partid (@{$parts}) {
 5134: 			my @responseIds =$curRes->responseIds($partid);
 5135: 			my @responseType =$curRes->responseType($partid);
 5136: 			my %responseIds;
 5137: 			for (my $i=0;$i<=$#responseIds;$i++) {
 5138: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
 5139: 			}
 5140: 			$responseType{$partid} = \%responseIds;
 5141: 		    }
 5142: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
 5143: 
 5144: 		}
 5145: 	    } elsif ($env{'form.lastSub'} eq 'all') {
 5146: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 5147:                 my $identifier = (&canmodify($usec)? $prob : '');
 5148: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 5149: 									$env{'request.course.id'},
 5150: 									'','.submission',undef,
 5151:                                                                         $usec,$identifier);
 5152:  
 5153: 	    }
 5154: 	    if (&canmodify($usec)) {
 5155:             $studentTable.=&gradeBox_start();
 5156: 		foreach my $partid (@{$parts}) {
 5157: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
 5158: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
 5159: 		    $question++;
 5160: 		}
 5161:             $studentTable.=&gradeBox_end();
 5162: 		$prob++;
 5163: 	    }
 5164: 	    $studentTable.='</td></tr>';
 5165: 
 5166: 	}
 5167:         $curRes = $iterator->next();
 5168:     }
 5169: 
 5170:     $studentTable.=
 5171:         '</table>'."\n".
 5172:         '<input type="button" value="'.&mt('Save').'" '.
 5173:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
 5174:         '</form>'."\n";
 5175:     $studentTable.=&show_grading_menu_form($symb);
 5176:     $request->print($studentTable);
 5177: 
 5178:     return '';
 5179: }
 5180: 
 5181: sub displaySubByDates {
 5182:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
 5183:     my $isCODE=0;
 5184:     my $isTask = ($symb =~/\.task$/);
 5185:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
 5186:     my $studentTable=&Apache::loncommon::start_data_table().
 5187: 	&Apache::loncommon::start_data_table_header_row().
 5188: 	'<th>'.&mt('Date/Time').'</th>'.
 5189: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
 5190:         ($isTask?'<th>'.&mt('Version').'</th>':'').
 5191: 	'<th>'.&mt('Submission').'</th>'.
 5192: 	'<th>'.&mt('Status').'</th>'.
 5193: 	&Apache::loncommon::end_data_table_header_row();
 5194:     my ($version);
 5195:     my %mark;
 5196:     my %orders;
 5197:     $mark{'correct_by_student'} = $checkIcon;
 5198:     if (!exists($$record{'1:timestamp'})) {
 5199: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
 5200:     }
 5201: 
 5202:     my $interaction;
 5203:     my $no_increment = 1;
 5204:     my (%lastrndseed,%lasttype);
 5205:     for ($version=1;$version<=$$record{'version'};$version++) {
 5206: 	my $timestamp = 
 5207: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 5208: 	if (exists($$record{$version.':resource.0.version'})) {
 5209: 	    $interaction = $$record{$version.':resource.0.version'};
 5210: 	}
 5211:         if ($isTask && $env{'form.previousversion'}) {
 5212:             next unless ($interaction == $env{'form.previousversion'});
 5213:         }
 5214: 	my $where = ($isTask ? "$version:resource.$interaction"
 5215: 		             : "$version:resource");
 5216: 	$studentTable.=&Apache::loncommon::start_data_table_row().
 5217: 	    '<td>'.$timestamp.'</td>';
 5218: 	if ($isCODE) {
 5219: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 5220: 	}
 5221:         if ($isTask) {
 5222:             $studentTable.='<td>'.$interaction.'</td>';
 5223:         }
 5224: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 5225: 	my @displaySub = ();
 5226: 	foreach my $partid (@{$parts}) {
 5227:             my ($hidden,$type);
 5228:             $type = $$record{$version.':resource.'.$partid.'.type'};
 5229:             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
 5230:                 $hidden = 1;
 5231:             }
 5232: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
 5233: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
 5234: 	    
 5235: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 5236: 	    my $display_part=&get_display_part($partid,$symb);
 5237: 	    foreach my $matchKey (@matchKey) {
 5238: 		if (exists($$record{$version.':'.$matchKey}) &&
 5239: 		    $$record{$version.':'.$matchKey} ne '') {
 5240:                     
 5241: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 5242: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
 5243:                     $displaySub[0].='<span class="LC_nobreak">';
 5244:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
 5245:                                    .' <span class="LC_internal_info">'
 5246:                                    .'('.&mt('Response ID: [_1]',$responseId).')'
 5247:                                    .'</span>'
 5248:                                    .' <b>';
 5249:                     if ($hidden) {
 5250:                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
 5251:                     } else {
 5252:                         my ($trial,$rndseed,$newvariation);
 5253:                         if ($type eq 'randomizetry') {
 5254:                             $trial = $$record{"$where.$partid.tries"};
 5255:                             $rndseed = $$record{"$where.$partid.rndseed"};
 5256:                         }
 5257: 		        if ($$record{"$where.$partid.tries"} eq '') {
 5258: 			    $displaySub[0].=&mt('Trial not counted');
 5259: 		        } else {
 5260: 			    $displaySub[0].=&mt('Trial: [_1]',
 5261: 					    $$record{"$where.$partid.tries"});
 5262:                             if (($rndseed ne '')  && ($lastrndseed{$partid} ne '')) {
 5263:                                 if (($rndseed ne $lastrndseed{$partid}) &&
 5264:                                     (($type eq 'randomizetry') || ($lasttype{$partid} eq 'randomizetry'))) {
 5265:                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
 5266:                                 }
 5267:                             }
 5268:                             $lastrndseed{$partid} = $rndseed;
 5269:                             $lasttype{$partid} = $type;
 5270: 		        }
 5271: 		        my $responseType=($isTask ? 'Task'
 5272:                                               : $responseType->{$partid}->{$responseId});
 5273: 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
 5274: 		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
 5275: 			    $orders{$partid}->{$responseId}=
 5276: 			        &get_order($partid,$responseId,$symb,$uname,$udom,
 5277:                                            $no_increment,$type,$trial,$rndseed);
 5278: 		        }
 5279: 		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
 5280: 		        $displaySub[0].='&nbsp; '.
 5281: 			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
 5282:                     }
 5283: 		}
 5284: 	    }
 5285: 	    if (exists($$record{"$where.$partid.checkedin"})) {
 5286: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
 5287: 				    $$record{"$where.$partid.checkedin"},
 5288: 				    $$record{"$where.$partid.checkedin.slot"}).
 5289: 					'<br />';
 5290: 	    }
 5291: 	    if (exists $$record{"$where.$partid.award"}) {
 5292: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
 5293: 		    lc($$record{"$where.$partid.award"}).' '.
 5294: 		    $mark{$$record{"$where.$partid.solved"}}.
 5295: 		    '<br />';
 5296: 	    }
 5297: 	    if (exists $$record{"$where.$partid.regrader"}) {
 5298: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
 5299: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 5300: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 5301: 		$displaySub[2].=
 5302: 		    $$record{"$version:resource.$partid.regrader"}.
 5303: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 5304: 	    }
 5305: 	}
 5306: 	# needed because old essay regrader has not parts info
 5307: 	if (exists $$record{"$version:resource.regrader"}) {
 5308: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
 5309: 	}
 5310: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
 5311: 	if ($displaySub[2]) {
 5312: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
 5313: 	}
 5314: 	$studentTable.='&nbsp;</td>'.
 5315: 	    &Apache::loncommon::end_data_table_row();
 5316:     }
 5317:     $studentTable.=&Apache::loncommon::end_data_table();
 5318:     return $studentTable;
 5319: }
 5320: 
 5321: sub updateGradeByPage {
 5322:     my ($request) = shift;
 5323: 
 5324:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 5325:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 5326:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 5327:     my $pageTitle = $env{'form.page'};
 5328:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 5329:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 5330:     my $usec=$classlist->{$env{'form.student'}}[5];
 5331:     if (!&canmodify($usec)) {
 5332: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
 5333: 	$request->print(&show_grading_menu_form($env{'form.symb'}));
 5334: 	return;
 5335:     }
 5336:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 5337:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 5338: 	'</h3>'."\n";
 5339: 
 5340:     $request->print($result);
 5341: 
 5342: 
 5343:     my $navmap = Apache::lonnavmaps::navmap->new();
 5344:     unless (ref($navmap)) {
 5345:         $request->print(&navmap_errormsg());
 5346:         return;
 5347:     }
 5348:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
 5349:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 5350:     if (!$map) {
 5351: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
 5352: 	my ($symb)=&get_symb($request);
 5353: 	$request->print(&show_grading_menu_form($symb));
 5354: 	return; 
 5355:     }
 5356:     my $iterator = $navmap->getIterator($map->map_start(),
 5357: 					$map->map_finish());
 5358: 
 5359:     my $studentTable=
 5360: 	&Apache::loncommon::start_data_table().
 5361: 	&Apache::loncommon::start_data_table_header_row().
 5362: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
 5363: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
 5364: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
 5365: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
 5366: 	&Apache::loncommon::end_data_table_header_row();
 5367: 
 5368:     $iterator->next(); # skip the first BEGIN_MAP
 5369:     my $curRes = $iterator->next(); # for "current resource"
 5370:     my ($depth,$question,$prob,$changeflag,$hideflag)= (1,1,1,0,0);
 5371:     while ($depth > 0) {
 5372:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 5373:         if($curRes == $iterator->END_MAP) { $depth--; }
 5374: 
 5375:         if (ref($curRes) && $curRes->is_problem()) {
 5376: 	    my $parts = $curRes->parts();
 5377:             my $title = $curRes->compTitle();
 5378: 	    my $symbx = $curRes->symb();
 5379: 	    $studentTable.=
 5380: 		&Apache::loncommon::start_data_table_row().
 5381: 		'<td align="center" valign="top" >'.$prob.
 5382: 		(scalar(@{$parts}) == 1 ? '' 
 5383:                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
 5384: 		.')').'</td>';
 5385: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 5386: 
 5387: 	    my %newrecord=();
 5388: 	    my @displayPts=();
 5389:             my %aggregate = ();
 5390:             my $aggregateflag = 0;
 5391:             if ($env{'form.HIDE'.$prob}) {
 5392:                 my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 5393:                 my ($version,$parts) = split(/:/,$env{'form.HIDE'.$prob},2);
 5394:                 my $numchgs = &makehidden($version,$parts,\%record,$symbx,$udom,$uname,1);
 5395:                 $hideflag += $numchgs;
 5396:             }
 5397: 	    foreach my $partid (@{$parts}) {
 5398: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 5399: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
 5400: 
 5401: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 5402: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
 5403: 		my $partial = $newpts/$wgt;
 5404: 		my $score;
 5405: 		if ($partial > 0) {
 5406: 		    $score = 'correct_by_override';
 5407: 		} elsif ($newpts ne '') { #empty is taken as 0
 5408: 		    $score = 'incorrect_by_override';
 5409: 		}
 5410: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
 5411: 		if ($dropMenu eq 'excused') {
 5412: 		    $partial = '';
 5413: 		    $score = 'excused';
 5414: 		} elsif ($dropMenu eq 'reset status'
 5415: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 5416: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
 5417: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
 5418: 		    $newrecord{'resource.'.$partid.'.award'} = '';
 5419: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
 5420: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
 5421: 		    $changeflag++;
 5422: 		    $newpts = '';
 5423:                     
 5424:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
 5425:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
 5426:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
 5427:                     if ($aggtries > 0) {
 5428:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 5429:                         $aggregateflag = 1;
 5430:                     }
 5431: 		}
 5432: 		my $display_part=&get_display_part($partid,$curRes->symb());
 5433: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
 5434: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5435: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
 5436: 		    '&nbsp;<br />';
 5437: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5438: 		     (($score eq 'excused') ? 'excused' : $newpts).
 5439: 		    '&nbsp;<br />';
 5440: 		$question++;
 5441: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 5442: 
 5443: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
 5444: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
 5445: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
 5446: 		    if (scalar(keys(%newrecord)) > 0);
 5447: 
 5448: 		$changeflag++;
 5449: 	    }
 5450: 	    if (scalar(keys(%newrecord)) > 0) {
 5451: 		my %record = 
 5452: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
 5453: 					     $udom,$uname);
 5454: 
 5455: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
 5456: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
 5457: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
 5458: 		    $newrecord{'resource.CODE'} = '';
 5459: 		}
 5460: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
 5461: 					$udom,$uname);
 5462: 		%record = &Apache::lonnet::restore($symbx,
 5463: 						   $env{'request.course.id'},
 5464: 						   $udom,$uname);
 5465: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
 5466: 					     $cdom,$cnum,$udom,$uname);
 5467: 	    }
 5468: 	    
 5469:             if ($aggregateflag) {
 5470:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 5471:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
 5472:                       $env{'course.'.$env{'request.course.id'}.'.num'});
 5473:             }
 5474: 
 5475: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
 5476: 		'<td valign="top">'.$displayPts[1].'</td>'.
 5477: 		&Apache::loncommon::end_data_table_row();
 5478: 
 5479: 	    $prob++;
 5480: 	}
 5481:         $curRes = $iterator->next();
 5482:     }
 5483: 
 5484:     $studentTable.=&Apache::loncommon::end_data_table();
 5485:     $studentTable.=&show_grading_menu_form($env{'form.symb'});
 5486:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 5487: 		  &mt('The scores were changed for [quant,_1,problem].',
 5488: 		  $changeflag).'<br />');
 5489:     my $hidemsg=($hideflag == 0 ? '' :
 5490:                  &mt('Submissions were marked "hidden" for [quant,_1,transaction].',
 5491:                      $hideflag).'<br />');
 5492:     $request->print($hidemsg.$grademsg.$studentTable);
 5493: 
 5494:     return '';
 5495: }
 5496: 
 5497: #-------- end of section for handling grading by page/sequence ---------
 5498: #
 5499: #-------------------------------------------------------------------
 5500: 
 5501: #-------------------- Bubblesheet (Scantron) Grading -------------------
 5502: #
 5503: #------ start of section for handling grading by page/sequence ---------
 5504: 
 5505: =pod
 5506: 
 5507: =head1 Bubble sheet grading routines
 5508: 
 5509:   For this documentation:
 5510: 
 5511:    'scanline' refers to the full line of characters
 5512:    from the file that we are parsing that represents one entire sheet
 5513: 
 5514:    'bubble line' refers to the data
 5515:    representing the line of bubbles that are on the physical bubblesheet
 5516: 
 5517: 
 5518: The overall process is that a scanned in bubblesheet data is uploaded
 5519: into a course. When a user wants to grade, they select a
 5520: sequence/folder of resources, a file of bubblesheet info, and pick
 5521: one of the predefined configurations for what each scanline looks
 5522: like.
 5523: 
 5524: Next each scanline is checked for any errors of either 'missing
 5525: bubbles' (it's an error because it may have been mis-scanned
 5526: because too light bubbling), 'double bubble' (each bubble line should
 5527: have no more than one letter picked), invalid or duplicated CODE,
 5528: invalid student/employee ID
 5529: 
 5530: If the CODE option is used that determines the randomization of the
 5531: homework problems, either way the student/employee ID is looked up into a
 5532: username:domain.
 5533: 
 5534: During the validation phase the instructor can choose to skip scanlines. 
 5535: 
 5536: After the validation phase, there are now 3 bubblesheet files
 5537: 
 5538:   scantron_original_filename (unmodified original file)
 5539:   scantron_corrected_filename (file where the corrected information has replaced the original information)
 5540:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 5541: 
 5542: Also there is a separate hash nohist_scantrondata that contains extra
 5543: correction information that isn't representable in the bubblesheet
 5544: file (see &scantron_getfile() for more information)
 5545: 
 5546: After all scanlines are either valid, marked as valid or skipped, then
 5547: foreach line foreach problem in the picked sequence, an ssi request is
 5548: made that simulates a user submitting their selected letter(s) against
 5549: the homework problem.
 5550: 
 5551: =over 4
 5552: 
 5553: 
 5554: 
 5555: =item defaultFormData
 5556: 
 5557:   Returns html hidden inputs used to hold context/default values.
 5558: 
 5559:  Arguments:
 5560:   $symb - $symb of the current resource 
 5561: 
 5562: =cut
 5563: 
 5564: sub defaultFormData {
 5565:     my ($symb)=@_;
 5566:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 5567:      '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 5568:      '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 5569: }
 5570: 
 5571: 
 5572: =pod 
 5573: 
 5574: =item getSequenceDropDown
 5575: 
 5576:    Return html dropdown of possible sequences to grade
 5577:  
 5578:  Arguments:
 5579:    $symb - $symb of the current resource
 5580:    $map_error - ref to scalar which will container error if
 5581:                 $navmap object is unavailable in &getSymbMap().
 5582: 
 5583: =cut
 5584: 
 5585: sub getSequenceDropDown {
 5586:     my ($symb,$map_error)=@_;
 5587:     my $result='<select name="selectpage">'."\n";
 5588:     my ($titles,$symbx) = &getSymbMap($map_error);
 5589:     if (ref($map_error)) {
 5590:         return if ($$map_error);
 5591:     }
 5592:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
 5593:     my $ctr=0;
 5594:     foreach (@$titles) {
 5595: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 5596: 	$result.='<option value="'.$$symbx{$_}.'" '.
 5597: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 5598: 	    '>'.$showtitle.'</option>'."\n";
 5599: 	$ctr++;
 5600:     }
 5601:     $result.= '</select>';
 5602:     return $result;
 5603: }
 5604: 
 5605: my %bubble_lines_per_response;     # no. bubble lines for each response.
 5606:                                    # key is zero-based index - 0, 1, 2 ...
 5607: 
 5608: my %first_bubble_line;             # First bubble line no. for each bubble.
 5609: 
 5610: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
 5611:                                    # matchresponse or rankresponse, where 
 5612:                                    # an individual response can have multiple 
 5613:                                    # lines
 5614: 
 5615: my %responsetype_per_response;     # responsetype for each response
 5616: 
 5617: my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
 5618:                                    # numbered response. Needed when randomorder
 5619:                                    # or randompick are in use. Key is ID, value 
 5620:                                    # is response number.
 5621: 
 5622: # Save and restore the bubble lines array to the form env.
 5623: 
 5624: 
 5625: sub save_bubble_lines {
 5626:     foreach my $line (keys(%bubble_lines_per_response)) {
 5627: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
 5628: 	$env{"form.scantron.first_bubble_line.$line"} =
 5629: 	    $first_bubble_line{$line};
 5630:         $env{"form.scantron.sub_bubblelines.$line"} = 
 5631:             $subdivided_bubble_lines{$line};
 5632:         $env{"form.scantron.responsetype.$line"} =
 5633:             $responsetype_per_response{$line};
 5634:     }
 5635:     foreach my $resid (keys(%masterseq_id_responsenum)) {
 5636:         my $line = $masterseq_id_responsenum{$resid};
 5637:         $env{"form.scantron.residpart.$line"} = $resid;
 5638:     }
 5639: }
 5640: 
 5641: 
 5642: sub restore_bubble_lines {
 5643:     my $line = 0;
 5644:     %bubble_lines_per_response = ();
 5645:     %masterseq_id_responsenum = ();
 5646:     while ($env{"form.scantron.bubblelines.$line"}) {
 5647: 	my $value = $env{"form.scantron.bubblelines.$line"};
 5648: 	$bubble_lines_per_response{$line} = $value;
 5649: 	$first_bubble_line{$line}  =
 5650: 	    $env{"form.scantron.first_bubble_line.$line"};
 5651:         $subdivided_bubble_lines{$line} =
 5652:             $env{"form.scantron.sub_bubblelines.$line"};
 5653:         $responsetype_per_response{$line} =
 5654:             $env{"form.scantron.responsetype.$line"};
 5655:         my $id = $env{"form.scantron.residpart.$line"};
 5656:         $masterseq_id_responsenum{$id} = $line;
 5657: 	$line++;
 5658:     }
 5659: }
 5660: 
 5661: =pod 
 5662: 
 5663: =item scantron_filenames
 5664: 
 5665:    Returns a list of the scantron files in the current course 
 5666: 
 5667: =cut
 5668: 
 5669: sub scantron_filenames {
 5670:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 5671:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 5672:     my $getpropath = 1;
 5673:     my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
 5674:                                                         $cname,$getpropath);
 5675:     my @possiblenames;
 5676:     if (ref($dirlist) eq 'ARRAY') {
 5677:         foreach my $filename (sort(@{$dirlist})) {
 5678: 	    ($filename)=split(/&/,$filename);
 5679: 	    if ($filename!~/^scantron_orig_/) { next ; }
 5680: 	    $filename=~s/^scantron_orig_//;
 5681: 	    push(@possiblenames,$filename);
 5682:         }
 5683:     }
 5684:     return @possiblenames;
 5685: }
 5686: 
 5687: =pod 
 5688: 
 5689: =item scantron_uploads
 5690: 
 5691:    Returns  html drop-down list of scantron files in current course.
 5692: 
 5693:  Arguments:
 5694:    $file2grade - filename to set as selected in the dropdown
 5695: 
 5696: =cut
 5697: 
 5698: sub scantron_uploads {
 5699:     my ($file2grade) = @_;
 5700:     my $result=	'<select name="scantron_selectfile">';
 5701:     $result.="<option></option>";
 5702:     foreach my $filename (sort(&scantron_filenames())) {
 5703: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
 5704:     }
 5705:     $result.="</select>";
 5706:     return $result;
 5707: }
 5708: 
 5709: =pod 
 5710: 
 5711: =item scantron_scantab
 5712: 
 5713:   Returns html drop down of the scantron formats in the scantronformat.tab
 5714:   file.
 5715: 
 5716: =cut
 5717: 
 5718: sub scantron_scantab {
 5719:     my $result='<select name="scantron_format">'."\n";
 5720:     $result.='<option></option>'."\n";
 5721:     my @lines = &Apache::lonnet::get_scantronformat_file();
 5722:     if (@lines > 0) {
 5723:         foreach my $line (@lines) {
 5724:             next if (($line =~ /^\#/) || ($line eq ''));
 5725: 	    my ($name,$descrip)=split(/:/,$line);
 5726: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
 5727:         }
 5728:     }
 5729:     $result.='</select>'."\n";
 5730:     return $result;
 5731: }
 5732: 
 5733: =pod 
 5734: 
 5735: =item scantron_CODElist
 5736: 
 5737:   Returns html drop down of the saved CODE lists from current course,
 5738:   generated from earlier printings.
 5739: 
 5740: =cut
 5741: 
 5742: sub scantron_CODElist {
 5743:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 5744:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 5745:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 5746:     my $namechoice='<option></option>';
 5747:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 5748: 	if ($name =~ /^error: 2 /) { next; }
 5749: 	if ($name =~ /^type\0/) { next; }
 5750: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
 5751:     }
 5752:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
 5753:     return $namechoice;
 5754: }
 5755: 
 5756: =pod 
 5757: 
 5758: =item scantron_CODEunique
 5759: 
 5760:   Returns the html for "Each CODE to be used once" radio.
 5761: 
 5762: =cut
 5763: 
 5764: sub scantron_CODEunique {
 5765:     my $result='<span class="LC_nobreak">
 5766:                  <label><input type="radio" name="scantron_CODEunique"
 5767:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
 5768:                 </span>
 5769:                 <span class="LC_nobreak">
 5770:                  <label><input type="radio" name="scantron_CODEunique"
 5771:                         value="no" />'.&mt('No').' </label>
 5772:                 </span>';
 5773:     return $result;
 5774: }
 5775: 
 5776: =pod 
 5777: 
 5778: =item scantron_selectphase
 5779: 
 5780:   Generates the initial screen to start the bubblesheet process.
 5781:   Allows for - starting a grading run.
 5782:              - downloading existing scan data (original, corrected
 5783:                                                 or skipped info)
 5784: 
 5785:              - uploading new scan data
 5786: 
 5787:  Arguments:
 5788:   $r          - The Apache request object
 5789:   $file2grade - name of the file that contain the scanned data to score
 5790: 
 5791: =cut
 5792: 
 5793: sub scantron_selectphase {
 5794:     my ($r,$file2grade) = @_;
 5795:     my ($symb)=&get_symb($r);
 5796:     if (!$symb) {return '';}
 5797:     my $map_error;
 5798:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
 5799:     if ($map_error) {
 5800:         $r->print('<br />'.&navmap_errormsg().'<br />');
 5801:         return;
 5802:     }
 5803:     my $default_form_data=&defaultFormData($symb);
 5804:     my $grading_menu_button=&show_grading_menu_form($symb);
 5805:     my $file_selector=&scantron_uploads($file2grade);
 5806:     my $format_selector=&scantron_scantab();
 5807:     my $CODE_selector=&scantron_CODElist();
 5808:     my $CODE_unique=&scantron_CODEunique();
 5809:     my $result;
 5810: 
 5811:     $ssi_error = 0;
 5812: 
 5813:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
 5814:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 5815: 
 5816:         # Chunk of form to prompt for a scantron file upload.
 5817: 
 5818:         $r->print('
 5819:     <br />');
 5820:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5821:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
 5822:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 5823:     &js_escape(\$alertmsg);
 5824:     my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($cdom);
 5825:     $r->print(&Apache::lonhtmlcommon::scripttag('
 5826:     function checkUpload(formname) {
 5827:         if (formname.upfile.value == "") {
 5828:             alert("'.$alertmsg.'");
 5829:             return false;
 5830:         }
 5831:         formname.submit();
 5832:     }'."\n".$formatjs));
 5833:     $r->print('
 5834:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 5835:                 '.$default_form_data.'
 5836:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
 5837:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
 5838:                 <input name="command" value="scantronupload_save" type="hidden" />
 5839:               '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5840:               '.&Apache::loncommon::start_data_table_header_row().'
 5841:                 <th>
 5842:                 &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
 5843:                 </th>
 5844:               '.&Apache::loncommon::end_data_table_header_row().'
 5845:               '.&Apache::loncommon::start_data_table_row().'
 5846:             <td>
 5847:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'<br />'."\n");
 5848:     if ($formatoptions) {
 5849:         $r->print('</td>
 5850:                  '.&Apache::loncommon::end_data_table_row().'
 5851:                  '.&Apache::loncommon::start_data_table_row().'
 5852:                  <td>'.$formattitle.('&nbsp;'x2).$formatoptions.'
 5853:                  </td>
 5854:                  '.&Apache::loncommon::end_data_table_row().'
 5855:                  '.&Apache::loncommon::start_data_table_row().'
 5856:                  <td>'
 5857:         );
 5858:     } else {
 5859:         $r->print(' <br />');
 5860:     }
 5861:     $r->print('<input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 5862:               </td>
 5863:              '.&Apache::loncommon::end_data_table_row().'
 5864:              '.&Apache::loncommon::end_data_table().'
 5865:              </form>'
 5866:     );
 5867: 
 5868:     }
 5869: 
 5870:     # Chunk of form to prompt for a file to grade and how:
 5871: 
 5872:     $result.= '
 5873:     <br />
 5874:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
 5875:     <input type="hidden" name="command" value="scantron_warning" />
 5876:     '.$default_form_data.'
 5877:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5878:        '.&Apache::loncommon::start_data_table_header_row().'
 5879:             <th colspan="2">
 5880:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
 5881:             </th>
 5882:        '.&Apache::loncommon::end_data_table_header_row().'
 5883:        '.&Apache::loncommon::start_data_table_row().'
 5884:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
 5885:        '.&Apache::loncommon::end_data_table_row().'
 5886:        '.&Apache::loncommon::start_data_table_row().'
 5887:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
 5888:        '.&Apache::loncommon::end_data_table_row().'
 5889:        '.&Apache::loncommon::start_data_table_row().'
 5890:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
 5891:        '.&Apache::loncommon::end_data_table_row().'
 5892:        '.&Apache::loncommon::start_data_table_row().'
 5893:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
 5894:        '.&Apache::loncommon::end_data_table_row().'
 5895:        '.&Apache::loncommon::start_data_table_row().'
 5896:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
 5897:        '.&Apache::loncommon::end_data_table_row().'
 5898:        '.&Apache::loncommon::start_data_table_row().'
 5899: 	    <td> '.&mt('Options:').' </td>
 5900:             <td>
 5901: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
 5902:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
 5903:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
 5904: 	    </td>
 5905:        '.&Apache::loncommon::end_data_table_row().'
 5906:        '.&Apache::loncommon::start_data_table_row().'
 5907:             <td colspan="2">
 5908:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
 5909:             </td>
 5910:        '.&Apache::loncommon::end_data_table_row().'
 5911:     '.&Apache::loncommon::end_data_table().'
 5912:     </form>
 5913: ';
 5914:    
 5915:     $r->print($result);
 5916: 
 5917:     # Chunk of the form that prompts to view a scoring office file,
 5918:     # corrected file, skipped records in a file.
 5919: 
 5920:     $r->print('
 5921:    <br />
 5922:    <form action="/adm/grades" name="scantron_download">
 5923:      '.$default_form_data.'
 5924:      <input type="hidden" name="command" value="scantron_download" />
 5925:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5926:        '.&Apache::loncommon::start_data_table_header_row().'
 5927:               <th>
 5928:                 &nbsp;'.&mt('Download a scoring office file').'
 5929:               </th>
 5930:        '.&Apache::loncommon::end_data_table_header_row().'
 5931:        '.&Apache::loncommon::start_data_table_row().'
 5932:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
 5933:                 <br />
 5934:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
 5935:        '.&Apache::loncommon::end_data_table_row().'
 5936:      '.&Apache::loncommon::end_data_table().'
 5937:    </form>
 5938:    <br />
 5939: ');
 5940: 
 5941:     &Apache::lonpickcode::code_list($r,2);
 5942: 
 5943:     $r->print('<br /><form method="post" name="checkscantron" action="">'.
 5944:              $default_form_data."\n".
 5945:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
 5946:              &Apache::loncommon::start_data_table_header_row()."\n".
 5947:              '<th colspan="2">
 5948:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
 5949:              '</th>'."\n".
 5950:               &Apache::loncommon::end_data_table_header_row()."\n".
 5951:               &Apache::loncommon::start_data_table_row()."\n".
 5952:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
 5953:               '<td> '.$sequence_selector.' </td>'.
 5954:               &Apache::loncommon::end_data_table_row()."\n".
 5955:               &Apache::loncommon::start_data_table_row()."\n".
 5956:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
 5957:               '<td> '.$file_selector.' </td>'."\n".
 5958:               &Apache::loncommon::end_data_table_row()."\n".
 5959:               &Apache::loncommon::start_data_table_row()."\n".
 5960:               '<td> '.&mt('Format of data file:').' </td>'."\n".
 5961:               '<td> '.$format_selector.' </td>'."\n".
 5962:               &Apache::loncommon::end_data_table_row()."\n".
 5963:               &Apache::loncommon::start_data_table_row()."\n".
 5964:               '<td> '.&mt('Options').' </td>'."\n".
 5965:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
 5966:               &Apache::loncommon::end_data_table_row()."\n".
 5967:               &Apache::loncommon::start_data_table_row()."\n".
 5968:               '<td colspan="2">'."\n".
 5969:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
 5970:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
 5971:               '</td>'."\n".
 5972:               &Apache::loncommon::end_data_table_row()."\n".
 5973:               &Apache::loncommon::end_data_table()."\n".
 5974:               '</form><br />');
 5975:     $r->print($grading_menu_button);
 5976:     return;
 5977: }
 5978: 
 5979: =pod 
 5980: 
 5981: =item username_to_idmap
 5982: 
 5983:     creates a hash keyed by student/employee ID with values of the corresponding
 5984:     student username:domain.
 5985: 
 5986:   Arguments:
 5987: 
 5988:     $classlist - reference to the class list hash. This is a hash
 5989:                  keyed by student name:domain  whose elements are references
 5990:                  to arrays containing various chunks of information
 5991:                  about the student. (See loncoursedata for more info).
 5992: 
 5993:   Returns
 5994:     %idmap - the constructed hash
 5995: 
 5996: =cut
 5997: 
 5998: sub username_to_idmap {
 5999:     my ($classlist)= @_;
 6000:     my %idmap;
 6001:     foreach my $student (keys(%$classlist)) {
 6002:         my $id = $classlist->{$student}->[&Apache::loncoursedata::CL_ID];
 6003:         unless ($id eq '') {
 6004:             if (!exists($idmap{$id})) {
 6005:                 $idmap{$id} = $student;
 6006:             } else {
 6007:                 my $status = $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS];
 6008:                 if ($status eq 'Active') {
 6009:                     $idmap{$id} = $student;
 6010:                 }
 6011:             }
 6012:         }
 6013:     }
 6014:     return %idmap;
 6015: }
 6016: 
 6017: =pod
 6018: 
 6019: =item scantron_fixup_scanline
 6020: 
 6021:    Process a requested correction to a scanline.
 6022: 
 6023:   Arguments:
 6024:     $scantron_config   - hash from &Apache::lonnet::get_scantron_config()
 6025:     $scan_data         - hash of correction information 
 6026:                           (see &scantron_getfile())
 6027:     $line              - existing scanline
 6028:     $whichline         - line number of the passed in scanline
 6029:     $field             - type of change to process 
 6030:                          (either 
 6031:                           'ID'     -> correct the student/employee ID
 6032:                           'CODE'   -> correct the CODE
 6033:                           'answer' -> fixup the submitted answers)
 6034:     
 6035:    $args               - hash of additional info,
 6036:                           - 'ID' 
 6037:                                'newid' -> studentID to use in replacement
 6038:                                           of existing one
 6039:                           - 'CODE' 
 6040:                                'CODE_ignore_dup' - set to true if duplicates
 6041:                                                    should be ignored.
 6042: 	                       'CODE' - is new code or 'use_unfound'
 6043:                                         if the existing unfound code should
 6044:                                         be used as is
 6045:                           - 'answer'
 6046:                                'response' - new answer or 'none' if blank
 6047:                                'question' - the bubble line to change
 6048:                                'questionnum' - the question identifier,
 6049:                                                may include subquestion. 
 6050: 
 6051:   Returns:
 6052:     $line - the modified scanline
 6053: 
 6054:   Side effects: 
 6055:     $scan_data - may be updated
 6056: 
 6057: =cut
 6058: 
 6059: 
 6060: sub scantron_fixup_scanline {
 6061:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
 6062:     if ($field eq 'ID') {
 6063: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
 6064: 	    return ($line,1,'New value too large');
 6065: 	}
 6066: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
 6067: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
 6068: 				     $args->{'newid'});
 6069: 	}
 6070: 	substr($line,$$scantron_config{'IDstart'}-1,
 6071: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
 6072: 	if ($args->{'newid'}=~/^\s*$/) {
 6073: 	    &scan_data($scan_data,"$whichline.user",
 6074: 		       $args->{'username'}.':'.$args->{'domain'});
 6075: 	}
 6076:     } elsif ($field eq 'CODE') {
 6077: 	if ($args->{'CODE_ignore_dup'}) {
 6078: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
 6079: 	}
 6080: 	&scan_data($scan_data,"$whichline.useCODE",'1');
 6081: 	if ($args->{'CODE'} ne 'use_unfound') {
 6082: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
 6083: 		return ($line,1,'New CODE value too large');
 6084: 	    }
 6085: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
 6086: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
 6087: 	    }
 6088: 	    substr($line,$$scantron_config{'CODEstart'}-1,
 6089: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
 6090: 	}
 6091:     } elsif ($field eq 'answer') {
 6092: 	my $length=$scantron_config->{'Qlength'};
 6093: 	my $off=$scantron_config->{'Qoff'};
 6094: 	my $on=$scantron_config->{'Qon'};
 6095: 	my $answer=${off}x$length;
 6096: 	if ($args->{'response'} eq 'none') {
 6097: 	    &scan_data($scan_data,
 6098: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
 6099: 	} else {
 6100: 	    if ($on eq 'letter') {
 6101: 		my @alphabet=('A'..'Z');
 6102: 		$answer=$alphabet[$args->{'response'}];
 6103: 	    } elsif ($on eq 'number') {
 6104: 		$answer=$args->{'response'}+1;
 6105: 		if ($answer == 10) { $answer = '0'; }
 6106: 	    } else {
 6107: 		substr($answer,$args->{'response'},1)=$on;
 6108: 	    }
 6109: 	    &scan_data($scan_data,
 6110: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
 6111: 	}
 6112: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
 6113: 	substr($line,$where-1,$length)=$answer;
 6114:     }
 6115:     return $line;
 6116: }
 6117: 
 6118: =pod
 6119: 
 6120: =item scan_data
 6121: 
 6122:     Edit or look up  an item in the scan_data hash.
 6123: 
 6124:   Arguments:
 6125:     $scan_data  - The hash (see scantron_getfile)
 6126:     $key        - shorthand of the key to edit (actual key is
 6127:                   scantronfilename_key).
 6128:     $data        - New value of the hash entry.
 6129:     $delete      - If true, the entry is removed from the hash.
 6130: 
 6131:   Returns:
 6132:     The new value of the hash table field (undefined if deleted).
 6133: 
 6134: =cut
 6135: 
 6136: 
 6137: sub scan_data {
 6138:     my ($scan_data,$key,$value,$delete)=@_;
 6139:     my $filename=$env{'form.scantron_selectfile'};
 6140:     if (defined($value)) {
 6141: 	$scan_data->{$filename.'_'.$key} = $value;
 6142:     }
 6143:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
 6144:     return $scan_data->{$filename.'_'.$key};
 6145: }
 6146: 
 6147: # ----- These first few routines are general use routines.----
 6148: 
 6149: # Return the number of occurences of a pattern in a string.
 6150: 
 6151: sub occurence_count {
 6152:     my ($string, $pattern) = @_;
 6153: 
 6154:     my @matches = ($string =~ /$pattern/g);
 6155: 
 6156:     return scalar(@matches);
 6157: }
 6158: 
 6159: 
 6160: # Take a string known to have digits and convert all the
 6161: # digits into letters in the range J,A..I.
 6162: 
 6163: sub digits_to_letters {
 6164:     my ($input) = @_;
 6165: 
 6166:     my @alphabet = ('J', 'A'..'I');
 6167: 
 6168:     my @input    = split(//, $input);
 6169:     my $output ='';
 6170:     for (my $i = 0; $i < scalar(@input); $i++) {
 6171: 	if ($input[$i] =~ /\d/) {
 6172: 	    $output .= $alphabet[$input[$i]];
 6173: 	} else {
 6174: 	    $output .= $input[$i];
 6175: 	}
 6176:     }
 6177:     return $output;
 6178: }
 6179: 
 6180: =pod 
 6181: 
 6182: =item scantron_parse_scanline
 6183: 
 6184:   Decodes a scanline from the selected scantron file
 6185: 
 6186:  Arguments:
 6187:     line             - The text of the scantron file line to process
 6188:     whichline        - Line number
 6189:     scantron_config  - Hash describing the format of the scantron lines.
 6190:     scan_data        - Hash of extra information about the scanline
 6191:                        (see scantron_getfile for more information)
 6192:     just_header      - True if should not process question answers but only
 6193:                        the stuff to the left of the answers.
 6194:     randomorder      - True if randomorder in use
 6195:     randompick       - True if randompick in use
 6196:     sequence         - Exam folder URL
 6197:     master_seq       - Ref to array containing symbs in exam folder
 6198:     symb_to_resource - Ref to hash of symbs for resources in exam folder
 6199:                        (corresponding values are resource objects)
 6200:     partids_by_symb  - Ref to hash of symb -> array ref of partIDs
 6201:     orderedforcode   - Ref to hash of arrays. keys are CODEs and values
 6202:                        are refs to an array of resource objects, ordered
 6203:                        according to order used for CODE, when randomorder
 6204:                        and or randompick are in use.
 6205:     respnumlookup    - Ref to hash mapping question numbers in bubble lines
 6206:                        for current line to question number used for same question
 6207:                         in "Master Sequence" (as seen by Course Coordinator).
 6208:     startline        - Ref to hash where key is question number (0 is first)
 6209:                        and value is number of first bubble line for current 
 6210:                        student or code-based randompick and/or randomorder.
 6211:     totalref         - Ref of scalar used to score total number of bubble
 6212:                        lines needed for responses in a scan line (used when
 6213:                        randompick in use. 
 6214: 
 6215:  Returns:
 6216:    Hash containing the result of parsing the scanline
 6217: 
 6218:    Keys are all proceeded by the string 'scantron.'
 6219: 
 6220:        CODE    - the CODE in use for this scanline
 6221:        useCODE - 1 if the CODE is invalid but it usage has been forced
 6222:                  by the operator
 6223:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
 6224:                             CODEs were selected, but the usage has been
 6225:                             forced by the operator
 6226:        ID  - student/employee ID
 6227:        PaperID - if used, the ID number printed on the sheet when the 
 6228:                  paper was scanned
 6229:        FirstName - first name from the sheet
 6230:        LastName  - last name from the sheet
 6231: 
 6232:      if just_header was not true these key may also exist
 6233: 
 6234:        missingerror - a list of bubble ranges that are considered to be answers
 6235:                       to a single question that don't have any bubbles filled in.
 6236:                       Of the form questionnumber:firstbubblenumber:count.
 6237:        doubleerror  - a list of bubble ranges that are considered to be answers
 6238:                       to a single question that have more than one bubble filled in.
 6239:                       Of the form questionnumber::firstbubblenumber:count
 6240:    
 6241:                 In the above, count is the number of bubble responses in the
 6242:                 input line needed to represent the possible answers to the question.
 6243:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
 6244:                 per line would have count = 2.
 6245: 
 6246:        maxquest     - the number of the last bubble line that was parsed
 6247: 
 6248:        (<number> starts at 1)
 6249:        <number>.answer - zero or more letters representing the selected
 6250:                          letters from the scanline for the bubble line 
 6251:                          <number>.
 6252:                          if blank there was either no bubble or there where
 6253:                          multiple bubbles, (consult the keys missingerror and
 6254:                          doubleerror if this is an error condition)
 6255: 
 6256: =cut
 6257: 
 6258: sub scantron_parse_scanline {
 6259:     my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
 6260:         $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
 6261:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
 6262: 
 6263:     my %record;
 6264:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
 6265:     if (!($$scantron_config{'CODElocation'} eq 0 ||
 6266: 	  $$scantron_config{'CODElocation'} eq 'none')) {
 6267: 	if ($$scantron_config{'CODElocation'} < 0 ||
 6268: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
 6269: 	    $$scantron_config{'CODElocation'} eq 'number') {
 6270: 	    $record{'scantron.CODE'}=substr($data,
 6271: 					    $$scantron_config{'CODEstart'}-1,
 6272: 					    $$scantron_config{'CODElength'});
 6273: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
 6274: 		$record{'scantron.useCODE'}=1;
 6275: 	    }
 6276: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
 6277: 		$record{'scantron.CODE_ignore_dup'}=1;
 6278: 	    }
 6279: 	} else {
 6280: 	    #FIXME interpret first N questions
 6281: 	}
 6282:     }
 6283:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
 6284: 				  $$scantron_config{'IDlength'});
 6285:     $record{'scantron.PaperID'}=
 6286: 	substr($data,$$scantron_config{'PaperID'}-1,
 6287: 	       $$scantron_config{'PaperIDlength'});
 6288:     $record{'scantron.FirstName'}=
 6289: 	substr($data,$$scantron_config{'FirstName'}-1,
 6290: 	       $$scantron_config{'FirstNamelength'});
 6291:     $record{'scantron.LastName'}=
 6292: 	substr($data,$$scantron_config{'LastName'}-1,
 6293: 	       $$scantron_config{'LastNamelength'});
 6294:     if ($just_header) { return \%record; }
 6295: 
 6296:     my @alphabet=('A'..'Z');
 6297:     my $questnum=0;
 6298:     my $ansnum  =1;		# Multiple 'answer lines'/question.
 6299: 
 6300:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
 6301:     if ($randompick || $randomorder) {
 6302:         my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
 6303:                                          $master_seq,$symb_to_resource,
 6304:                                          $partids_by_symb,$orderedforcode,
 6305:                                          $respnumlookup,$startline);
 6306:         if ($total) {
 6307:             $lastpos = $total*$$scantron_config{'Qlength'};
 6308:         }
 6309:         if (ref($totalref)) {
 6310:             $$totalref = $total;
 6311:         }
 6312:     }
 6313:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
 6314:     chomp($questions);		# Get rid of any trailing \n.
 6315:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
 6316:     while (length($questions)) {
 6317:         my $answers_needed;
 6318:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6319:             $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
 6320:         } else {
 6321:             $answers_needed = $bubble_lines_per_response{$questnum};
 6322:         }
 6323:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
 6324:                              || 1;
 6325:         $questnum++;
 6326:         my $quest_id = $questnum;
 6327:         my $currentquest = substr($questions,0,$answer_length);
 6328:         $questions       = substr($questions,$answer_length);
 6329:         if (length($currentquest) < $answer_length) { next; }
 6330: 
 6331:         my $subdivided;
 6332:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6333:             $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
 6334:         } else {
 6335:             $subdivided = $subdivided_bubble_lines{$questnum-1};
 6336:         }
 6337:         if ($subdivided =~ /,/) {
 6338:             my $subquestnum = 1;
 6339:             my $subquestions = $currentquest;
 6340:             my @subanswers_needed = split(/,/,$subdivided);
 6341:             foreach my $subans (@subanswers_needed) {
 6342:                 my $subans_length =
 6343:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
 6344:                 my $currsubquest = substr($subquestions,0,$subans_length);
 6345:                 $subquestions   = substr($subquestions,$subans_length);
 6346:                 $quest_id = "$questnum.$subquestnum";
 6347:                 if (($$scantron_config{'Qon'} eq 'letter') ||
 6348:                     ($$scantron_config{'Qon'} eq 'number')) {
 6349:                     $ansnum = &scantron_validator_lettnum($ansnum, 
 6350:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6351:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6352:                         $randomorder,$randompick,$respnumlookup);
 6353:                 } else {
 6354:                     $ansnum = &scantron_validator_positional($ansnum,
 6355:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6356:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6357:                         $randomorder,$randompick,$respnumlookup);
 6358:                 }
 6359:                 $subquestnum ++;
 6360:             }
 6361:         } else {
 6362:             if (($$scantron_config{'Qon'} eq 'letter') ||
 6363:                 ($$scantron_config{'Qon'} eq 'number')) {
 6364:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
 6365:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6366:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6367:                     $randomorder,$randompick,$respnumlookup);
 6368:             } else {
 6369:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
 6370:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6371:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6372:                     $randomorder,$randompick,$respnumlookup);
 6373:             }
 6374:         }
 6375:     }
 6376:     $record{'scantron.maxquest'}=$questnum;
 6377:     return \%record;
 6378: }
 6379: 
 6380: sub get_master_seq {
 6381:     my ($resources,$master_seq,$symb_to_resource) = @_;
 6382:     return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
 6383:                    (ref($symb_to_resource) eq 'HASH'));
 6384:     my $resource_error;
 6385:     foreach my $resource (@{$resources}) {
 6386:         my $ressymb;
 6387:         if (ref($resource)) {
 6388:             $ressymb = $resource->symb();
 6389:             push(@{$master_seq},$ressymb);
 6390:             $symb_to_resource->{$ressymb} = $resource;
 6391:         } else {
 6392:             $resource_error = 1;
 6393:             last;
 6394:         }
 6395:     }
 6396:     return $resource_error;
 6397: }
 6398: 
 6399: sub get_respnum_lookups {
 6400:     my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
 6401:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
 6402:     return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
 6403:                    (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
 6404:                    (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
 6405:                    (ref($startline) eq 'HASH'));
 6406:     my ($user,$scancode);
 6407:     if ((exists($record->{'scantron.CODE'})) &&
 6408:         (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
 6409:         $scancode = $record->{'scantron.CODE'};
 6410:     } else {
 6411:         $user = &scantron_find_student($record,$scan_data,$idmap,$line);
 6412:     }
 6413:     my @mapresources =
 6414:         &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
 6415:                      $orderedforcode);
 6416:     my $total = 0;
 6417:     my $count = 0;
 6418:     foreach my $resource (@mapresources) {
 6419:         my $id = $resource->id();
 6420:         my $symb = $resource->symb();
 6421:         if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
 6422:             foreach my $partid (@{$partids_by_symb->{$symb}}) {
 6423:                 my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
 6424:                 if ($respnum ne '') {
 6425:                     $respnumlookup->{$count} = $respnum;
 6426:                     $startline->{$count} = $total;
 6427:                     $total += $bubble_lines_per_response{$respnum};
 6428:                     $count ++;
 6429:                 }
 6430:             }
 6431:         }
 6432:     }
 6433:     return $total;
 6434: }
 6435: 
 6436: sub scantron_validator_lettnum {
 6437:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
 6438:         $alphabet,$record,$scantron_config,$scan_data,$randomorder,
 6439:         $randompick,$respnumlookup) = @_;
 6440: 
 6441:     # Qon 'letter' implies for each slot in currquest we have:
 6442:     #    ? or * for doubles, a letter in A-Z for a bubble, and
 6443:     #    about anything else (esp. a value of Qoff) for missing
 6444:     #    bubbles.
 6445:     #
 6446:     # Qon 'number' implies each slot gives a digit that indexes the
 6447:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
 6448:     #    and * or ? for double bubbles on a single line.
 6449:     #
 6450: 
 6451:     my $matchon;
 6452:     if ($$scantron_config{'Qon'} eq 'letter') {
 6453:         $matchon = '[A-Z]';
 6454:     } elsif ($$scantron_config{'Qon'} eq 'number') {
 6455:         $matchon = '\d';
 6456:     }
 6457:     my $occurrences = 0;
 6458:     my $responsenum = $questnum-1;
 6459:     if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6460:        $responsenum = $respnumlookup->{$questnum-1}
 6461:     }
 6462:     if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6463:         ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6464:         ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6465:         ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6466:         ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6467:         ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6468:         my @singlelines = split('',$currquest);
 6469:         foreach my $entry (@singlelines) {
 6470:             $occurrences = &occurence_count($entry,$matchon);
 6471:             if ($occurrences > 1) {
 6472:                 last;
 6473:             }
 6474:         }
 6475:     } else {
 6476:         $occurrences = &occurence_count($currquest,$matchon); 
 6477:     }
 6478:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
 6479:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6480:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6481:             my $bubble = substr($currquest,$ans,1);
 6482:             if ($bubble =~ /$matchon/ ) {
 6483:                 if ($$scantron_config{'Qon'} eq 'number') {
 6484:                     if ($bubble == 0) {
 6485:                         $bubble = 10; 
 6486:                     }
 6487:                     $record->{"scantron.$ansnum.answer"} = 
 6488:                         $alphabet->[$bubble-1];
 6489:                 } else {
 6490:                     $record->{"scantron.$ansnum.answer"} = $bubble;
 6491:                 }
 6492:             } else {
 6493:                 $record->{"scantron.$ansnum.answer"}='';
 6494:             }
 6495:             $ansnum++;
 6496:         }
 6497:     } elsif (!defined($currquest)
 6498:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
 6499:             || (&occurence_count($currquest,$matchon) == 0)) {
 6500:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6501:             $record->{"scantron.$ansnum.answer"}='';
 6502:             $ansnum++;
 6503:         }
 6504:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6505:             push(@{$record->{'scantron.missingerror'}},$quest_id);
 6506:         }
 6507:     } else {
 6508:         if ($$scantron_config{'Qon'} eq 'number') {
 6509:             $currquest = &digits_to_letters($currquest);            
 6510:         }
 6511:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6512:             my $bubble = substr($currquest,$ans,1);
 6513:             $record->{"scantron.$ansnum.answer"} = $bubble;
 6514:             $ansnum++;
 6515:         }
 6516:     }
 6517:     return $ansnum;
 6518: }
 6519: 
 6520: sub scantron_validator_positional {
 6521:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
 6522:         $whichline,$alphabet,$record,$scantron_config,$scan_data,
 6523:         $randomorder,$randompick,$respnumlookup) = @_;
 6524: 
 6525:     # Otherwise there's a positional notation;
 6526:     # each bubble line requires Qlength items, and there are filled in
 6527:     # bubbles for each case where there 'Qon' characters.
 6528:     #
 6529: 
 6530:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
 6531: 
 6532:     # If the split only gives us one element.. the full length of the
 6533:     # answer string, no bubbles are filled in:
 6534: 
 6535:     if ($answers_needed eq '') {
 6536:         return;
 6537:     }
 6538: 
 6539:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
 6540:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6541:             $record->{"scantron.$ansnum.answer"}='';
 6542:             $ansnum++;
 6543:         }
 6544:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6545:             push(@{$record->{"scantron.missingerror"}},$quest_id);
 6546:         }
 6547:     } elsif (scalar(@array) == 2) {
 6548:         my $location = length($array[0]);
 6549:         my $line_num = int($location / $$scantron_config{'Qlength'});
 6550:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
 6551:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6552:             if ($ans eq $line_num) {
 6553:                 $record->{"scantron.$ansnum.answer"} = $bubble;
 6554:             } else {
 6555:                 $record->{"scantron.$ansnum.answer"} = ' ';
 6556:             }
 6557:             $ansnum++;
 6558:          }
 6559:     } else {
 6560:         #  If there's more than one instance of a bubble character
 6561:         #  That's a double bubble; with positional notation we can
 6562:         #  record all the bubbles filled in as well as the
 6563:         #  fact this response consists of multiple bubbles.
 6564:         #
 6565:         my $responsenum = $questnum-1;
 6566:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6567:             $responsenum = $respnumlookup->{$questnum-1}
 6568:         }
 6569:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6570:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6571:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6572:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6573:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6574:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6575:             my $doubleerror = 0;
 6576:             while (($currquest >= $$scantron_config{'Qlength'}) && 
 6577:                    (!$doubleerror)) {
 6578:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
 6579:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
 6580:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
 6581:                if (length(@currarray) > 2) {
 6582:                    $doubleerror = 1;
 6583:                } 
 6584:             }
 6585:             if ($doubleerror) {
 6586:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6587:             }
 6588:         } else {
 6589:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6590:         }
 6591:         my $item = $ansnum;
 6592:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6593:             $record->{"scantron.$item.answer"} = '';
 6594:             $item ++;
 6595:         }
 6596: 
 6597:         my @ans=@array;
 6598:         my $i=0;
 6599:         my $increment = 0;
 6600:         while ($#ans) {
 6601:             $i+=length($ans[0]) + $increment;
 6602:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
 6603:             my $bubble = $i%$$scantron_config{'Qlength'};
 6604:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
 6605:             shift(@ans);
 6606:             $increment = 1;
 6607:         }
 6608:         $ansnum += $answers_needed;
 6609:     }
 6610:     return $ansnum;
 6611: }
 6612: 
 6613: =pod
 6614: 
 6615: =item scantron_add_delay
 6616: 
 6617:    Adds an error message that occurred during the grading phase to a
 6618:    queue of messages to be shown after grading pass is complete
 6619: 
 6620:  Arguments:
 6621:    $delayqueue  - arrary ref of hash ref of error messages
 6622:    $scanline    - the scanline that caused the error
 6623:    $errormesage - the error message
 6624:    $errorcode   - a numeric code for the error
 6625: 
 6626:  Side Effects:
 6627:    updates the $delayqueue to have a new hash ref of the error
 6628: 
 6629: =cut
 6630: 
 6631: sub scantron_add_delay {
 6632:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
 6633:     push(@$delayqueue,
 6634: 	 {'line' => $scanline, 'emsg' => $errormessage,
 6635: 	  'ecode' => $errorcode }
 6636: 	 );
 6637: }
 6638: 
 6639: =pod
 6640: 
 6641: =item scantron_find_student
 6642: 
 6643:    Finds the username for the current scanline
 6644: 
 6645:   Arguments:
 6646:    $scantron_record - hash result from scantron_parse_scanline
 6647:    $scan_data       - hash of correction information 
 6648:                       (see &scantron_getfile() form more information)
 6649:    $idmap           - hash from &username_to_idmap()
 6650:    $line            - number of current scanline
 6651:  
 6652:   Returns:
 6653:    Either 'username:domain' or undef if unknown
 6654: 
 6655: =cut
 6656: 
 6657: sub scantron_find_student {
 6658:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
 6659:     my $scanID=$$scantron_record{'scantron.ID'};
 6660:     if ($scanID =~ /^\s*$/) {
 6661:  	return &scan_data($scan_data,"$line.user");
 6662:     }
 6663:     foreach my $id (keys(%$idmap)) {
 6664:  	if (lc($id) eq lc($scanID)) {
 6665:  	    return $$idmap{$id};
 6666:  	}
 6667:     }
 6668:     return undef;
 6669: }
 6670: 
 6671: =pod
 6672: 
 6673: =item scantron_filter
 6674: 
 6675:    Filter sub for lonnavmaps, filters out hidden resources if ignore
 6676:    hidden resources was selected
 6677: 
 6678: =cut
 6679: 
 6680: sub scantron_filter {
 6681:     my ($curres)=@_;
 6682: 
 6683:     if (ref($curres) && $curres->is_problem()) {
 6684: 	# if the user has asked to not have either hidden
 6685: 	# or 'randomout' controlled resources to be graded
 6686: 	# don't include them
 6687: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6688: 	    && $curres->randomout) {
 6689: 	    return 0;
 6690: 	}
 6691: 	return 1;
 6692:     }
 6693:     return 0;
 6694: }
 6695: 
 6696: =pod
 6697: 
 6698: =item scantron_process_corrections
 6699: 
 6700:    Gets correction information out of submitted form data and corrects
 6701:    the scanline
 6702: 
 6703: =cut
 6704: 
 6705: sub scantron_process_corrections {
 6706:     my ($r) = @_;
 6707:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 6708:     my ($scanlines,$scan_data)=&scantron_getfile();
 6709:     my $classlist=&Apache::loncoursedata::get_classlist();
 6710:     my $which=$env{'form.scantron_line'};
 6711:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
 6712:     my ($skip,$err,$errmsg);
 6713:     if ($env{'form.scantron_skip_record'}) {
 6714: 	$skip=1;
 6715:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
 6716: 	my $newstudent=$env{'form.scantron_username'}.':'.
 6717: 	    $env{'form.scantron_domain'};
 6718: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
 6719: 	($line,$err,$errmsg)=
 6720: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6721: 				     'ID',{'newid'=>$newid,
 6722: 				    'username'=>$env{'form.scantron_username'},
 6723: 				    'domain'=>$env{'form.scantron_domain'}});
 6724:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
 6725: 	my $resolution=$env{'form.scantron_CODE_resolution'};
 6726: 	my $newCODE;
 6727: 	my %args;
 6728: 	if      ($resolution eq 'use_unfound') {
 6729: 	    $newCODE='use_unfound';
 6730: 	} elsif ($resolution eq 'use_found') {
 6731: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
 6732: 	} elsif ($resolution eq 'use_typed') {
 6733: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
 6734: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
 6735: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
 6736: 	}
 6737: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
 6738: 	    $args{'CODE_ignore_dup'}=1;
 6739: 	}
 6740: 	$args{'CODE'}=$newCODE;
 6741: 	($line,$err,$errmsg)=
 6742: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6743: 				     'CODE',\%args);
 6744:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
 6745: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
 6746: 	    ($line,$err,$errmsg)=
 6747: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
 6748: 					 $which,'answer',
 6749: 					 { 'question'=>$question,
 6750: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
 6751:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
 6752: 	    if ($err) { last; }
 6753: 	}
 6754:     }
 6755:     if ($err) {
 6756: 	$r->print(
 6757:             '<p class="LC_error">'
 6758:            .&mt('Unable to accept last correction, an error occurred: [_1]',
 6759:                 $errmsg)
 6760:            .'</p>');
 6761:     } else {
 6762: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 6763: 	&scantron_putfile($scanlines,$scan_data);
 6764:     }
 6765: }
 6766: 
 6767: =pod
 6768: 
 6769: =item reset_skipping_status
 6770: 
 6771:    Forgets the current set of remember skipped scanlines (and thus
 6772:    reverts back to considering all lines in the
 6773:    scantron_skipped_<filename> file)
 6774: 
 6775: =cut
 6776: 
 6777: sub reset_skipping_status {
 6778:     my ($scanlines,$scan_data)=&scantron_getfile();
 6779:     &scan_data($scan_data,'remember_skipping',undef,1);
 6780:     &scantron_putfile(undef,$scan_data);
 6781: }
 6782: 
 6783: =pod
 6784: 
 6785: =item start_skipping
 6786: 
 6787:    Marks a scanline to be skipped. 
 6788: 
 6789: =cut
 6790: 
 6791: sub start_skipping {
 6792:     my ($scan_data,$i)=@_;
 6793:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6794:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
 6795: 	$remembered{$i}=2;
 6796:     } else {
 6797: 	$remembered{$i}=1;
 6798:     }
 6799:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
 6800: }
 6801: 
 6802: =pod
 6803: 
 6804: =item should_be_skipped
 6805: 
 6806:    Checks whether a scanline should be skipped.
 6807: 
 6808: =cut
 6809: 
 6810: sub should_be_skipped {
 6811:     my ($scanlines,$scan_data,$i)=@_;
 6812:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
 6813: 	# not redoing old skips
 6814: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
 6815: 	return 0;
 6816:     }
 6817:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6818: 
 6819:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
 6820: 	return 0;
 6821:     }
 6822:     return 1;
 6823: }
 6824: 
 6825: =pod
 6826: 
 6827: =item remember_current_skipped
 6828: 
 6829:    Discovers what scanlines are in the scantron_skipped_<filename>
 6830:    file and remembers them into scan_data for later use.
 6831: 
 6832: =cut
 6833: 
 6834: sub remember_current_skipped {
 6835:     my ($scanlines,$scan_data)=&scantron_getfile();
 6836:     my %to_remember;
 6837:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6838: 	if ($scanlines->{'skipped'}[$i]) {
 6839: 	    $to_remember{$i}=1;
 6840: 	}
 6841:     }
 6842: 
 6843:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
 6844:     &scantron_putfile(undef,$scan_data);
 6845: }
 6846: 
 6847: =pod
 6848: 
 6849: =item check_for_error
 6850: 
 6851:     Checks if there was an error when attempting to remove a specific
 6852:     scantron_.. bubblesheet data file. Prints out an error if
 6853:     something went wrong.
 6854: 
 6855: =cut
 6856: 
 6857: sub check_for_error {
 6858:     my ($r,$result)=@_;
 6859:     if ($result ne 'ok' && $result ne 'not_found' ) {
 6860: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
 6861:     }
 6862: }
 6863: 
 6864: =pod
 6865: 
 6866: =item scantron_warning_screen
 6867: 
 6868:    Interstitial screen to make sure the operator has selected the
 6869:    correct options before we start the validation phase.
 6870: 
 6871: =cut
 6872: 
 6873: sub scantron_warning_screen {
 6874:     my ($button_text)=@_;
 6875:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
 6876:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 6877:     my $CODElist;
 6878:     if ($scantron_config{'CODElocation'} &&
 6879: 	$scantron_config{'CODEstart'} &&
 6880: 	$scantron_config{'CODElength'}) {
 6881: 	$CODElist=$env{'form.scantron_CODElist'};
 6882: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">'.&mt('None').'</span>'; }
 6883: 	$CODElist=
 6884: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 6885: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
 6886:     }
 6887:     my $lastbubblepoints;
 6888:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 6889:         $lastbubblepoints =
 6890:             '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
 6891:             $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
 6892:     }
 6893:     return ('
 6894: <p>
 6895: <span class="LC_warning">
 6896: '.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
 6897: </p>
 6898: <table>
 6899: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 6900: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
 6901: '.$CODElist.$lastbubblepoints.'
 6902: </table>
 6903: <br />
 6904: <p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'</p>
 6905: <p> '.&mt("If something is incorrect, please click the 'Grading Menu' button to start over.").'</p>
 6906: 
 6907: <br />
 6908: ');
 6909: }
 6910: 
 6911: =pod
 6912: 
 6913: =item scantron_do_warning
 6914: 
 6915:    Check if the operator has picked something for all required
 6916:    fields. Error out if something is missing.
 6917: 
 6918: =cut
 6919: 
 6920: sub scantron_do_warning {
 6921:     my ($r)=@_;
 6922:     my ($symb)=&get_symb($r);
 6923:     if (!$symb) {return '';}
 6924:     my $default_form_data=&defaultFormData($symb);
 6925:     $r->print(&scantron_form_start().$default_form_data);
 6926:     if ( $env{'form.selectpage'} eq '' ||
 6927: 	 $env{'form.scantron_selectfile'} eq '' ||
 6928: 	 $env{'form.scantron_format'} eq '' ) {
 6929: 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
 6930: 	if ( $env{'form.selectpage'} eq '') {
 6931: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 6932: 	} 
 6933: 	if ( $env{'form.scantron_selectfile'} eq '') {
 6934: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
 6935: 	} 
 6936: 	if ( $env{'form.scantron_format'} eq '') {
 6937: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
 6938: 	} 
 6939:     } else {
 6940: 	my $warning=&scantron_warning_screen('Grading: Validate Records');
 6941:         my $bubbledbyhand=&hand_bubble_option();
 6942: 	$r->print('
 6943: '.$warning.$bubbledbyhand.'
 6944: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 6945: <input type="hidden" name="command" value="scantron_validate" />
 6946: ');
 6947:     }
 6948:     $r->print("</form><br />".&show_grading_menu_form($symb));
 6949:     return '';
 6950: }
 6951: 
 6952: =pod
 6953: 
 6954: =item scantron_form_start
 6955: 
 6956:     html hidden input for remembering all selected grading options
 6957: 
 6958: =cut
 6959: 
 6960: sub scantron_form_start {
 6961:     my ($max_bubble)=@_;
 6962:     my $result= <<SCANTRONFORM;
 6963: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 6964:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
 6965:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
 6966:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
 6967:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
 6968:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
 6969:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
 6970:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
 6971:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
 6972:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
 6973: SCANTRONFORM
 6974: 
 6975:   my $line = 0;
 6976:     while (defined($env{"form.scantron.bubblelines.$line"})) {
 6977:        my $chunk =
 6978: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
 6979:        $chunk .=
 6980: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
 6981:        $chunk .= 
 6982:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
 6983:        $chunk .=
 6984:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
 6985:        $chunk .=
 6986:            '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
 6987:        $result .= $chunk;
 6988:        $line++;
 6989:     }
 6990:     return $result;
 6991: }
 6992: 
 6993: =pod
 6994: 
 6995: =item scantron_validate_file
 6996: 
 6997:     Dispatch routine for doing validation of a bubblesheet data file.
 6998: 
 6999:     Also processes any necessary information resets that need to
 7000:     occur before validation begins (ignore previous corrections,
 7001:     restarting the skipped records processing)
 7002: 
 7003: =cut
 7004: 
 7005: sub scantron_validate_file {
 7006:     my ($r) = @_;
 7007:     my ($symb)=&get_symb($r);
 7008:     if (!$symb) {return '';}
 7009:     my $default_form_data=&defaultFormData($symb);
 7010:     
 7011:     # do the detection of only doing skipped records first before we delete
 7012:     # them when doing the corrections reset
 7013:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 7014: 	&reset_skipping_status();
 7015:     }
 7016:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
 7017: 	&remember_current_skipped();
 7018: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
 7019:     }
 7020: 
 7021:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
 7022: 	&check_for_error($r,&scantron_remove_file('corrected'));
 7023: 	&check_for_error($r,&scantron_remove_file('skipped'));
 7024: 	&check_for_error($r,&scantron_remove_scan_data());
 7025: 	$env{'form.scantron_options_ignore'}='done';
 7026:     }
 7027: 
 7028:     if ($env{'form.scantron_corrections'}) {
 7029: 	&scantron_process_corrections($r);
 7030:     }
 7031:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
 7032:     #get the student pick code ready
 7033:     $r->print(&Apache::loncommon::studentbrowser_javascript());
 7034:     my $nav_error;
 7035:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 7036:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 7037:     if ($nav_error) {
 7038:         $r->print(&navmap_errormsg());
 7039:         return '';
 7040:     }
 7041:     my $result=&scantron_form_start($max_bubble).$default_form_data;
 7042:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 7043:         $result .= '<input type="hidden" name="scantron_lastbubblepoints" value="'.$env{'form.scantron_lastbubblepoints'}.'" />';
 7044:     }
 7045:     $r->print($result);
 7046:     
 7047:     my @validate_phases=( 'sequence',
 7048: 			  'ID',
 7049: 			  'CODE',
 7050: 			  'doublebubble',
 7051: 			  'missingbubbles');
 7052:     if (!$env{'form.validatepass'}) {
 7053: 	$env{'form.validatepass'} = 0;
 7054:     }
 7055:     my $currentphase=$env{'form.validatepass'};
 7056: 
 7057: 
 7058:     my $stop=0;
 7059:     while (!$stop && $currentphase < scalar(@validate_phases)) {
 7060: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 7061: 	$r->rflush();
 7062: 
 7063: 	my $which="scantron_validate_".$validate_phases[$currentphase];
 7064: 	{
 7065: 	    no strict 'refs';
 7066: 	    ($stop,$currentphase)=&$which($r,$currentphase);
 7067: 	}
 7068:     }
 7069:     if (!$stop) {
 7070: 	my $warning=&scantron_warning_screen('Start Grading');
 7071: 	$r->print(&mt('Validation process complete.').'<br />'.
 7072:                   $warning.
 7073:                   &mt('Perform verification for each student after storage of submissions?').
 7074:                   '&nbsp;<span class="LC_nobreak"><label>'.
 7075:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
 7076:                   ('&nbsp;'x3).'<label>'.
 7077:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
 7078:                   '</label></span><br />'.
 7079:                   &mt('Grading will take longer if you use verification.').'<br />'.
 7080:                   &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'<br /><br />'.
 7081:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
 7082:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
 7083:     } else {
 7084: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
 7085: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
 7086:     }
 7087:     if ($stop) {
 7088: 	if ($validate_phases[$currentphase] eq 'sequence') {
 7089: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 7090: 	    $r->print(' '.&mt('this error').' <br />');
 7091: 
 7092: 	    $r->print(" <p>".&mt("Or click the 'Grading Menu' button to start over.")."</p>");
 7093: 	} else {
 7094:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 7095: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
 7096:             } else {
 7097:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
 7098:             }
 7099: 	    $r->print(' '.&mt('using corrected info').' <br />');
 7100: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
 7101: 	    $r->print(" ".&mt("this scanline saving it for later."));
 7102: 	}
 7103:     }
 7104:     $r->print(" </form><br />".&show_grading_menu_form($symb));
 7105:     return '';
 7106: }
 7107: 
 7108: 
 7109: =pod
 7110: 
 7111: =item scantron_remove_file
 7112: 
 7113:    Removes the requested bubblesheet data file, makes sure that
 7114:    scantron_original_<filename> is never removed
 7115: 
 7116: 
 7117: =cut
 7118: 
 7119: sub scantron_remove_file {
 7120:     my ($which)=@_;
 7121:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7122:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7123:     my $file='scantron_';
 7124:     if ($which eq 'corrected' || $which eq 'skipped') {
 7125: 	$file.=$which.'_';
 7126:     } else {
 7127: 	return 'refused';
 7128:     }
 7129:     $file.=$env{'form.scantron_selectfile'};
 7130:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
 7131: }
 7132: 
 7133: 
 7134: =pod
 7135: 
 7136: =item scantron_remove_scan_data
 7137: 
 7138:    Removes all scan_data correction for the requested bubblesheet
 7139:    data file.  (In the case that both the are doing skipped records we need
 7140:    to remember the old skipped lines for the time being so that element
 7141:    persists for a while.)
 7142: 
 7143: =cut
 7144: 
 7145: sub scantron_remove_scan_data {
 7146:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7147:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7148:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
 7149:     my @todelete;
 7150:     my $filename=$env{'form.scantron_selectfile'};
 7151:     foreach my $key (@keys) {
 7152: 	if ($key=~/^\Q$filename\E_/) {
 7153: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
 7154: 		$key=~/remember_skipping/) {
 7155: 		next;
 7156: 	    }
 7157: 	    push(@todelete,$key);
 7158: 	}
 7159:     }
 7160:     my $result;
 7161:     if (@todelete) {
 7162: 	$result = &Apache::lonnet::del('nohist_scantrondata',
 7163: 				       \@todelete,$cdom,$cname);
 7164:     } else {
 7165: 	$result = 'ok';
 7166:     }
 7167:     return $result;
 7168: }
 7169: 
 7170: 
 7171: =pod
 7172: 
 7173: =item scantron_getfile
 7174: 
 7175:     Fetches the requested bubblesheet data file (all 3 versions), and
 7176:     the scan_data hash
 7177:   
 7178:   Arguments:
 7179:     None
 7180: 
 7181:   Returns:
 7182:     2 hash references
 7183: 
 7184:      - first one has 
 7185:          orig      -
 7186:          corrected -
 7187:          skipped   -  each of which points to an array ref of the specified
 7188:                       file broken up into individual lines
 7189:          count     - number of scanlines
 7190:  
 7191:      - second is the scan_data hash possible keys are
 7192:        ($number refers to scanline numbered $number and thus the key affects
 7193:         only that scanline
 7194:         $bubline refers to the specific bubble line element and the aspects
 7195:         refers to that specific bubble line element)
 7196: 
 7197:        $number.user - username:domain to use
 7198:        $number.CODE_ignore_dup 
 7199:                     - ignore the duplicate CODE error 
 7200:        $number.useCODE
 7201:                     - use the CODE in the scanline as is
 7202:        $number.no_bubble.$bubline
 7203:                     - it is valid that there is no bubbled in bubble
 7204:                       at $number $bubline
 7205:        remember_skipping
 7206:                     - a frozen hash containing keys of $number and values
 7207:                       of either 
 7208:                         1 - we are on a 'do skipped records pass' and plan
 7209:                             on processing this line
 7210:                         2 - we are on a 'do skipped records pass' and this
 7211:                             scanline has been marked to skip yet again
 7212: 
 7213: =cut
 7214: 
 7215: sub scantron_getfile {
 7216:     #FIXME really would prefer a scantron directory
 7217:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7218:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7219:     my $lines;
 7220:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7221: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
 7222:     my %scanlines;
 7223:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
 7224:     my $temp=$scanlines{'orig'};
 7225:     $scanlines{'count'}=$#$temp;
 7226: 
 7227:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7228: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
 7229:     if ($lines eq '-1') {
 7230: 	$scanlines{'corrected'}=[];
 7231:     } else {
 7232: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
 7233:     }
 7234:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7235: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
 7236:     if ($lines eq '-1') {
 7237: 	$scanlines{'skipped'}=[];
 7238:     } else {
 7239: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
 7240:     }
 7241:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
 7242:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
 7243:     my %scan_data = @tmp;
 7244:     return (\%scanlines,\%scan_data);
 7245: }
 7246: 
 7247: =pod
 7248: 
 7249: =item lonnet_putfile
 7250: 
 7251:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
 7252: 
 7253:  Arguments:
 7254:    $contents - data to store
 7255:    $filename - filename to store $contents into
 7256: 
 7257:  Returns:
 7258:    result value from &Apache::lonnet::finishuserfileupload
 7259: 
 7260: =cut
 7261: 
 7262: sub lonnet_putfile {
 7263:     my ($contents,$filename)=@_;
 7264:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7265:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7266:     $env{'form.sillywaytopassafilearound'}=$contents;
 7267:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
 7268: 
 7269: }
 7270: 
 7271: =pod
 7272: 
 7273: =item scantron_putfile
 7274: 
 7275:     Stores the current version of the bubblesheet data files, and the
 7276:     scan_data hash. (Does not modify the original version only the
 7277:     corrected and skipped versions.
 7278: 
 7279:  Arguments:
 7280:     $scanlines - hash ref that looks like the first return value from
 7281:                  &scantron_getfile()
 7282:     $scan_data - hash ref that looks like the second return value from
 7283:                  &scantron_getfile()
 7284: 
 7285: =cut
 7286: 
 7287: sub scantron_putfile {
 7288:     my ($scanlines,$scan_data) = @_;
 7289:     #FIXME really would prefer a scantron directory
 7290:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7291:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7292:     if ($scanlines) {
 7293: 	my $prefix='scantron_';
 7294: # no need to update orig, shouldn't change
 7295: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
 7296: #		    $env{'form.scantron_selectfile'});
 7297: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
 7298: 			$prefix.'corrected_'.
 7299: 			$env{'form.scantron_selectfile'});
 7300: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
 7301: 			$prefix.'skipped_'.
 7302: 			$env{'form.scantron_selectfile'});
 7303:     }
 7304:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
 7305: }
 7306: 
 7307: =pod
 7308: 
 7309: =item scantron_get_line
 7310: 
 7311:    Returns the correct version of the scanline
 7312: 
 7313:  Arguments:
 7314:     $scanlines - hash ref that looks like the first return value from
 7315:                  &scantron_getfile()
 7316:     $scan_data - hash ref that looks like the second return value from
 7317:                  &scantron_getfile()
 7318:     $i         - number of the requested line (starts at 0)
 7319: 
 7320:  Returns:
 7321:    A scanline, (either the original or the corrected one if it
 7322:    exists), or undef if the requested scanline should be
 7323:    skipped. (Either because it's an skipped scanline, or it's an
 7324:    unskipped scanline and we are not doing a 'do skipped scanlines'
 7325:    pass.
 7326: 
 7327: =cut
 7328: 
 7329: sub scantron_get_line {
 7330:     my ($scanlines,$scan_data,$i)=@_;
 7331:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
 7332:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
 7333:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
 7334:     return $scanlines->{'orig'}[$i]; 
 7335: }
 7336: 
 7337: =pod
 7338: 
 7339: =item scantron_todo_count
 7340: 
 7341:     Counts the number of scanlines that need processing.
 7342: 
 7343:  Arguments:
 7344:     $scanlines - hash ref that looks like the first return value from
 7345:                  &scantron_getfile()
 7346:     $scan_data - hash ref that looks like the second return value from
 7347:                  &scantron_getfile()
 7348: 
 7349:  Returns:
 7350:     $count - number of scanlines to process
 7351: 
 7352: =cut
 7353: 
 7354: sub get_todo_count {
 7355:     my ($scanlines,$scan_data)=@_;
 7356:     my $count=0;
 7357:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7358: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7359: 	if ($line=~/^[\s\cz]*$/) { next; }
 7360: 	$count++;
 7361:     }
 7362:     return $count;
 7363: }
 7364: 
 7365: =pod
 7366: 
 7367: =item scantron_put_line
 7368: 
 7369:     Updates the 'corrected' or 'skipped' versions of the bubblesheet
 7370:     data file.
 7371: 
 7372:  Arguments:
 7373:     $scanlines - hash ref that looks like the first return value from
 7374:                  &scantron_getfile()
 7375:     $scan_data - hash ref that looks like the second return value from
 7376:                  &scantron_getfile()
 7377:     $i         - line number to update
 7378:     $newline   - contents of the updated scanline
 7379:     $skip      - if true make the line for skipping and update the
 7380:                  'skipped' file
 7381: 
 7382: =cut
 7383: 
 7384: sub scantron_put_line {
 7385:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
 7386:     if ($skip) {
 7387: 	$scanlines->{'skipped'}[$i]=$newline;
 7388: 	&start_skipping($scan_data,$i);
 7389: 	return;
 7390:     }
 7391:     $scanlines->{'corrected'}[$i]=$newline;
 7392: }
 7393: 
 7394: =pod
 7395: 
 7396: =item scantron_clear_skip
 7397: 
 7398:    Remove a line from the 'skipped' file
 7399: 
 7400:  Arguments:
 7401:     $scanlines - hash ref that looks like the first return value from
 7402:                  &scantron_getfile()
 7403:     $scan_data - hash ref that looks like the second return value from
 7404:                  &scantron_getfile()
 7405:     $i         - line number to update
 7406: 
 7407: =cut
 7408: 
 7409: sub scantron_clear_skip {
 7410:     my ($scanlines,$scan_data,$i)=@_;
 7411:     if (exists($scanlines->{'skipped'}[$i])) {
 7412: 	undef($scanlines->{'skipped'}[$i]);
 7413: 	return 1;
 7414:     }
 7415:     return 0;
 7416: }
 7417: 
 7418: =pod
 7419: 
 7420: =item scantron_filter_not_exam
 7421: 
 7422:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
 7423:    filter out resources that are not marked as 'exam' mode
 7424: 
 7425: =cut
 7426: 
 7427: sub scantron_filter_not_exam {
 7428:     my ($curres)=@_;
 7429:     
 7430:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
 7431: 	# if the user has asked to not have either hidden
 7432: 	# or 'randomout' controlled resources to be graded
 7433: 	# don't include them
 7434: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 7435: 	    && $curres->randomout) {
 7436: 	    return 0;
 7437: 	}
 7438: 	return 1;
 7439:     }
 7440:     return 0;
 7441: }
 7442: 
 7443: =pod
 7444: 
 7445: =item scantron_validate_sequence
 7446: 
 7447:     Validates the selected sequence, checking for resource that are
 7448:     not set to exam mode.
 7449: 
 7450: =cut
 7451: 
 7452: sub scantron_validate_sequence {
 7453:     my ($r,$currentphase) = @_;
 7454: 
 7455:     my $navmap=Apache::lonnavmaps::navmap->new();
 7456:     unless (ref($navmap)) {
 7457:         $r->print(&navmap_errormsg());
 7458:         return (1,$currentphase);
 7459:     }
 7460:     my (undef,undef,$sequence)=
 7461: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7462: 
 7463:     my $map=$navmap->getResourceByUrl($sequence);
 7464: 
 7465:     $r->print('<input type="hidden" name="validate_sequence_exam"
 7466:                                     value="ignore" />');
 7467:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
 7468: 	my @resources=
 7469: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 7470: 	if (@resources) {
 7471: 	    $r->print('<p class="LC_warning">'
 7472:                .&mt('Some resources in the sequence currently are not set to'
 7473:                    .' exam mode. Grading these resources currently may not'
 7474:                    .' work correctly.')
 7475:                .'</p>'
 7476:             );
 7477: 	    return (1,$currentphase);
 7478: 	}
 7479:     }
 7480: 
 7481:     return (0,$currentphase+1);
 7482: }
 7483: 
 7484: 
 7485: 
 7486: sub scantron_validate_ID {
 7487:     my ($r,$currentphase) = @_;
 7488:     
 7489:     #get student info
 7490:     my $classlist=&Apache::loncoursedata::get_classlist();
 7491:     my %idmap=&username_to_idmap($classlist);
 7492: 
 7493:     #get scantron line setup
 7494:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 7495:     my ($scanlines,$scan_data)=&scantron_getfile();
 7496: 
 7497:     my $nav_error;
 7498:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
 7499:     if ($nav_error) {
 7500:         $r->print(&navmap_errormsg());
 7501:         return(1,$currentphase);
 7502:     }
 7503: 
 7504:     my %found=('ids'=>{},'usernames'=>{});
 7505:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7506: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7507: 	if ($line=~/^[\s\cz]*$/) { next; }
 7508: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7509: 						 $scan_data);
 7510: 	my $id=$$scan_record{'scantron.ID'};
 7511: 	my $found;
 7512: 	foreach my $checkid (keys(%idmap)) {
 7513: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
 7514: 	}
 7515: 	if ($found) {
 7516: 	    my $username=$idmap{$found};
 7517: 	    if ($found{'ids'}{$found}) {
 7518: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7519: 					 $line,'duplicateID',$found);
 7520: 		return(1,$currentphase);
 7521: 	    } elsif ($found{'usernames'}{$username}) {
 7522: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7523: 					 $line,'duplicateID',$username);
 7524: 		return(1,$currentphase);
 7525: 	    }
 7526: 	    #FIXME store away line we previously saw the ID on to use above
 7527: 	    $found{'ids'}{$found}++;
 7528: 	    $found{'usernames'}{$username}++;
 7529: 	} else {
 7530: 	    if ($id =~ /^\s*$/) {
 7531: 		my $username=&scan_data($scan_data,"$i.user");
 7532: 		if (defined($username) && $found{'usernames'}{$username}) {
 7533: 		    &scantron_get_correction($r,$i,$scan_record,
 7534: 					     \%scantron_config,
 7535: 					     $line,'duplicateID',$username);
 7536: 		    return(1,$currentphase);
 7537: 		} elsif (!defined($username)) {
 7538: 		    &scantron_get_correction($r,$i,$scan_record,
 7539: 					     \%scantron_config,
 7540: 					     $line,'incorrectID');
 7541: 		    return(1,$currentphase);
 7542: 		}
 7543: 		$found{'usernames'}{$username}++;
 7544: 	    } else {
 7545: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7546: 					 $line,'incorrectID');
 7547: 		return(1,$currentphase);
 7548: 	    }
 7549: 	}
 7550:     }
 7551: 
 7552:     return (0,$currentphase+1);
 7553: }
 7554: 
 7555: 
 7556: sub scantron_get_correction {
 7557:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
 7558:         $randomorder,$randompick,$respnumlookup,$startline)=@_;
 7559: #FIXME in the case of a duplicated ID the previous line, probably need
 7560: #to show both the current line and the previous one and allow skipping
 7561: #the previous one or the current one
 7562: 
 7563:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
 7564:         $r->print(
 7565:             '<p class="LC_warning">'
 7566:            .&mt('An error was detected ([_1]) for PaperID [_2]',
 7567:                 "<b>$error</b>",
 7568:                 '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
 7569:            ."</p> \n");
 7570:     } else {
 7571:         $r->print(
 7572:             '<p class="LC_warning">'
 7573:            .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
 7574:                 "<b>$error</b>", $i, "<pre>$line</pre>")
 7575:            ."</p> \n");
 7576:     }
 7577:     my $message =
 7578:         '<p>'
 7579:        .&mt('The ID on the form is [_1]',
 7580:             "<tt>$$scan_record{'scantron.ID'}</tt>")
 7581:        .'<br />'
 7582:        .&mt('The name on the paper is [_1], [_2]',
 7583:             $$scan_record{'scantron.LastName'},
 7584:             $$scan_record{'scantron.FirstName'})
 7585:        .'</p>';
 7586: 
 7587:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
 7588:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
 7589:                            # Array populated for doublebubble or
 7590:     my @lines_to_correct;  # missingbubble errors to build javascript
 7591:                            # to validate radio button checking   
 7592: 
 7593:     if ($error =~ /ID$/) {
 7594: 	if ($error eq 'incorrectID') {
 7595: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
 7596: 		      "</p>\n");
 7597: 	} elsif ($error eq 'duplicateID') {
 7598: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 7599: 	}
 7600: 	$r->print($message);
 7601: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 7602: 	$r->print("\n<ul><li> ");
 7603: 	#FIXME it would be nice if this sent back the user ID and
 7604: 	#could do partial userID matches
 7605: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 7606: 				       'scantron_username','scantron_domain'));
 7607: 	$r->print(": <input type='text' name='scantron_username' value='' />");
 7608: 	$r->print("\n:\n".
 7609: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 7610: 
 7611: 	$r->print('</li>');
 7612:     } elsif ($error =~ /CODE$/) {
 7613: 	if ($error eq 'incorrectCODE') {
 7614: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 7615: 	} elsif ($error eq 'duplicateCODE') {
 7616: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 7617: 	}
 7618:         $r->print("<p>".&mt('The CODE on the form is [_1]',
 7619:                             "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
 7620:                  ."</p>\n");
 7621: 	$r->print($message);
 7622: 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
 7623: 	$r->print("\n<br /> ");
 7624: 	my $i=0;
 7625: 	if ($error eq 'incorrectCODE' 
 7626: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
 7627: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
 7628: 	    if ($closest > 0) {
 7629: 		foreach my $testcode (@{$closest}) {
 7630: 		    my $checked='';
 7631: 		    if (!$i) { $checked=' checked="checked"'; }
 7632: 		    $r->print("
 7633:    <label>
 7634:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
 7635:        ".&mt("Use the similar CODE [_1] instead.",
 7636: 	    "<b><tt>".$testcode."</tt></b>")."
 7637:     </label>
 7638:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
 7639: 		    $r->print("\n<br />");
 7640: 		    $i++;
 7641: 		}
 7642: 	    }
 7643: 	}
 7644: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
 7645: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
 7646: 	    $r->print("
 7647:     <label>
 7648:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
 7649:        ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
 7650: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
 7651:     </label>");
 7652: 	    $r->print("\n<br />");
 7653: 	}
 7654: 
 7655: 	$r->print(<<ENDSCRIPT);
 7656: <script type="text/javascript">
 7657: function change_radio(field) {
 7658:     var slct=document.scantronupload.scantron_CODE_resolution;
 7659:     var i;
 7660:     for (i=0;i<slct.length;i++) {
 7661:         if (slct[i].value==field) { slct[i].checked=true; }
 7662:     }
 7663: }
 7664: </script>
 7665: ENDSCRIPT
 7666: 	my $href="/adm/pickcode?".
 7667: 	   "form=".&escape("scantronupload").
 7668: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
 7669: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
 7670: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
 7671: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
 7672: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
 7673: 	    $r->print("
 7674:     <label>
 7675:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
 7676:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
 7677: 	     "<a target='_blank' href='$href'>","</a>")."
 7678:     </label> 
 7679:     ".&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\')" />'));
 7680: 	    $r->print("\n<br />");
 7681: 	}
 7682: 	$r->print("
 7683:     <label>
 7684:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
 7685:        ".&mt("Use [_1] as the CODE.",
 7686: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 7687: 	$r->print("\n<br /><br />");
 7688:     } elsif ($error eq 'doublebubble') {
 7689: 	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 7690: 
 7691: 	# The form field scantron_questions is acutally a list of line numbers.
 7692: 	# represented by this form so:
 7693: 
 7694: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7695:                                                 $respnumlookup,$startline);
 7696: 
 7697: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7698: 		  $line_list.'" />');
 7699: 	$r->print($message);
 7700: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 7701: 	foreach my $question (@{$arg}) {
 7702: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7703:                                                    $scan_record, $error,
 7704:                                                    $randomorder,$randompick,
 7705:                                                    $respnumlookup,$startline);
 7706:             push(@lines_to_correct,@linenums);
 7707: 	}
 7708:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7709:     } elsif ($error eq 'missingbubble') {
 7710: 	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
 7711: 	$r->print($message);
 7712: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 7713: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
 7714: 
 7715: 	# The form field scantron_questions is actually a list of line numbers not
 7716: 	# a list of question numbers. Therefore:
 7717: 	#
 7718: 	
 7719: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7720:                                                 $respnumlookup,$startline);
 7721: 
 7722: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7723: 		  $line_list.'" />');
 7724: 	foreach my $question (@{$arg}) {
 7725: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7726:                                                    $scan_record, $error,
 7727:                                                    $randomorder,$randompick,
 7728:                                                    $respnumlookup,$startline);
 7729:             push(@lines_to_correct,@linenums);
 7730: 	}
 7731:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7732:     } else {
 7733: 	$r->print("\n<ul>");
 7734:     }
 7735:     $r->print("\n</li></ul>");
 7736: }
 7737: 
 7738: sub verify_bubbles_checked {
 7739:     my (@ansnums) = @_;
 7740:     my $ansnumstr = join('","',@ansnums);
 7741:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
 7742:     &js_escape(\$warning);
 7743:     my $output = (<<ENDSCRIPT);
 7744: <script type="text/javascript">
 7745: function verify_bubble_radio(form) {
 7746:     var ansnumArray = new Array ("$ansnumstr");
 7747:     var need_bubble_count = 0;
 7748:     for (var i=0; i<ansnumArray.length; i++) {
 7749:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
 7750:             var bubble_picked = 0; 
 7751:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
 7752:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
 7753:                     bubble_picked = 1;
 7754:                 }
 7755:             }
 7756:             if (bubble_picked == 0) {
 7757:                 need_bubble_count ++;
 7758:             }
 7759:         }
 7760:     }
 7761:     if (need_bubble_count) {
 7762:         alert("$warning");
 7763:         return;
 7764:     }
 7765:     form.submit(); 
 7766: }
 7767: </script>
 7768: ENDSCRIPT
 7769:     return $output;
 7770: }
 7771: 
 7772: =pod
 7773: 
 7774: =item  questions_to_line_list
 7775: 
 7776: Converts a list of questions into a string of comma separated
 7777: line numbers in the answer sheet used by the questions.  This is
 7778: used to fill in the scantron_questions form field.
 7779: 
 7780:   Arguments:
 7781:      questions    - Reference to an array of questions.
 7782:      randomorder  - True if randomorder in use.
 7783:      randompick   - True if randompick in use.
 7784:      respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7785:                      for current line to question number used for same question
 7786:                      in "Master Seqence" (as seen by Course Coordinator).
 7787:      startline    - Reference to hash where key is question number (0 is first)
 7788:                     and key is number of first bubble line for current student
 7789:                     or code-based randompick and/or randomorder.
 7790: 
 7791: =cut
 7792: 
 7793: 
 7794: sub questions_to_line_list {
 7795:     my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
 7796:     my @lines;
 7797: 
 7798:     foreach my $item (@{$questions}) {
 7799:         my $question = $item;
 7800:         my ($first,$count,$last);
 7801:         if ($item =~ /^(\d+)\.(\d+)$/) {
 7802:             $question = $1;
 7803:             my $subquestion = $2;
 7804:             my $responsenum = $question-1;
 7805:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7806:                 $responsenum = $respnumlookup->{$question-1};
 7807:                 if (ref($startline) eq 'HASH') {
 7808:                     $first = $startline->{$question-1} + 1;
 7809:                 }
 7810:             } else {
 7811:                 $first = $first_bubble_line{$responsenum} + 1;
 7812:             }
 7813:             my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7814:             my $subcount = 1;
 7815:             while ($subcount<$subquestion) {
 7816:                 $first += $subans[$subcount-1];
 7817:                 $subcount ++;
 7818:             }
 7819:             $count = $subans[$subquestion-1];
 7820:         } else {
 7821:             my $responsenum = $question-1;
 7822:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7823:                 $responsenum = $respnumlookup->{$question-1};
 7824:                 if (ref($startline) eq 'HASH') {
 7825:                     $first = $startline->{$question-1} + 1;
 7826:                 }
 7827:             } else {
 7828:                 $first = $first_bubble_line{$responsenum} + 1;
 7829:             }
 7830:             $count   = $bubble_lines_per_response{$responsenum};
 7831:         }
 7832:         $last = $first+$count-1;
 7833:         push(@lines, ($first..$last));
 7834:     }
 7835:     return join(',', @lines);
 7836: }
 7837: 
 7838: =pod 
 7839: 
 7840: =item prompt_for_corrections
 7841: 
 7842: Prompts for a potentially multiline correction to the
 7843: user's bubbling (factors out common code from scantron_get_correction
 7844: for multi and missing bubble cases).
 7845: 
 7846:  Arguments:
 7847:    $r           - Apache request object.
 7848:    $question    - The question number to prompt for.
 7849:    $scan_config - The scantron file configuration hash.
 7850:    $scan_record - Reference to the hash that has the the parsed scanlines.
 7851:    $error       - Type of error
 7852:    $randomorder - True if randomorder in use.
 7853:    $randompick  - True if randompick in use.
 7854:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7855:                     for current line to question number used for same question
 7856:                     in "Master Seqence" (as seen by Course Coordinator).
 7857:    $startline   - Reference to hash where key is question number (0 is first)
 7858:                   and value is number of first bubble line for current student
 7859:                   or code-based randompick and/or randomorder.
 7860: 
 7861:  Implicit inputs:
 7862:    %bubble_lines_per_response   - Starting line numbers for each question.
 7863:                                   Numbered from 0 (but question numbers are from
 7864:                                   1.
 7865:    %first_bubble_line           - Starting bubble line for each question.
 7866:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
 7867:                                   type problems render as separate sub-questions, 
 7868:                                   in exam mode. This hash contains a 
 7869:                                   comma-separated list of the lines per 
 7870:                                   sub-question.
 7871:    %responsetype_per_response   - essayresponse, formularesponse,
 7872:                                   stringresponse, imageresponse, reactionresponse,
 7873:                                   and organicresponse type problem parts can have
 7874:                                   multiple lines per response if the weight
 7875:                                   assigned exceeds 10.  In this case, only
 7876:                                   one bubble per line is permitted, but more 
 7877:                                   than one line might contain bubbles, e.g.
 7878:                                   bubbling of: line 1 - J, line 2 - J, 
 7879:                                   line 3 - B would assign 22 points.  
 7880: 
 7881: =cut
 7882: 
 7883: sub prompt_for_corrections {
 7884:     my ($r, $question, $scan_config, $scan_record, $error, $randomorder,
 7885:         $randompick, $respnumlookup, $startline) = @_;
 7886:     my ($current_line,$lines);
 7887:     my @linenums;
 7888:     my $questionnum = $question;
 7889:     my ($first,$responsenum);
 7890:     if ($question =~ /^(\d+)\.(\d+)$/) {
 7891:         $question = $1;
 7892:         my $subquestion = $2;
 7893:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7894:             $responsenum = $respnumlookup->{$question-1};
 7895:             if (ref($startline) eq 'HASH') {
 7896:                 $first = $startline->{$question-1};
 7897:             }
 7898:         } else {
 7899:             $responsenum = $question-1;
 7900:             $first = $first_bubble_line{$responsenum};
 7901:         }
 7902:         $current_line = $first + 1 ;
 7903:         my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7904:         my $subcount = 1;
 7905:         while ($subcount<$subquestion) {
 7906:             $current_line += $subans[$subcount-1];
 7907:             $subcount ++;
 7908:         }
 7909:         $lines = $subans[$subquestion-1];
 7910:     } else {
 7911:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7912:             $responsenum = $respnumlookup->{$question-1};
 7913:             if (ref($startline) eq 'HASH') {
 7914:                 $first = $startline->{$question-1};
 7915:             }
 7916:         } else {
 7917:             $responsenum = $question-1;
 7918:             $first = $first_bubble_line{$responsenum};
 7919:         }
 7920:         $current_line = $first + 1;
 7921:         $lines        = $bubble_lines_per_response{$responsenum};
 7922:     }
 7923:     if ($lines > 1) {
 7924:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
 7925:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 7926:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 7927:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 7928:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 7929:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 7930:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 7931:             $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$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 />');
 7932:         } else {
 7933:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
 7934:         }
 7935:     }
 7936:     for (my $i =0; $i < $lines; $i++) {
 7937:         my $selected = $$scan_record{"scantron.$current_line.answer"};
 7938: 	&scantron_bubble_selector($r,$scan_config,$current_line,
 7939: 	        		  $questionnum,$error,split('', $selected));
 7940:         push(@linenums,$current_line);
 7941: 	$current_line++;
 7942:     }
 7943:     if ($lines > 1) {
 7944: 	$r->print("<hr /><br />");
 7945:     }
 7946:     return @linenums;
 7947: }
 7948: 
 7949: =pod
 7950: 
 7951: =item scantron_bubble_selector
 7952:   
 7953:    Generates the html radiobuttons to correct a single bubble line
 7954:    possibly showing the existing the selected bubbles if known
 7955: 
 7956:  Arguments:
 7957:     $r           - Apache request object
 7958:     $scan_config - hash from &Apache::lonnet::get_scantron_config()
 7959:     $line        - Number of the line being displayed.
 7960:     $questionnum - Question number (may include subquestion)
 7961:     $error       - Type of error.
 7962:     @selected    - Array of bubbles picked on this line.
 7963: 
 7964: =cut
 7965: 
 7966: sub scantron_bubble_selector {
 7967:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
 7968:     my $max=$$scan_config{'Qlength'};
 7969: 
 7970:     my $scmode=$$scan_config{'Qon'};
 7971:     if ($scmode eq 'number' || $scmode eq 'letter') {
 7972:         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
 7973:             ($$scan_config{'BubblesPerRow'} > 0)) {
 7974:             $max=$$scan_config{'BubblesPerRow'};
 7975:             if (($scmode eq 'number') && ($max > 10)) {
 7976:                 $max = 10;
 7977:             } elsif (($scmode eq 'letter') && $max > 26) {
 7978:                 $max = 26;
 7979:             }
 7980:         } else {
 7981:             $max = 10;
 7982:         }
 7983:     }
 7984: 
 7985:     my @alphabet=('A'..'Z');
 7986:     $r->print(&Apache::loncommon::start_data_table().
 7987:               &Apache::loncommon::start_data_table_row());
 7988:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
 7989:     for (my $i=0;$i<$max+1;$i++) {
 7990: 	$r->print("\n".'<td align="center">');
 7991: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
 7992: 	else { $r->print('&nbsp;'); }
 7993: 	$r->print('</td>');
 7994:     }
 7995:     $r->print(&Apache::loncommon::end_data_table_row().
 7996:               &Apache::loncommon::start_data_table_row());
 7997:     for (my $i=0;$i<$max;$i++) {
 7998: 	$r->print("\n".
 7999: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
 8000: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
 8001:     }
 8002:     my $nobub_checked = ' ';
 8003:     if ($error eq 'missingbubble') {
 8004:         $nobub_checked = ' checked = "checked" ';
 8005:     }
 8006:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
 8007: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
 8008:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
 8009:               $line.'" value="'.$questionnum.'" /></td>');
 8010:     $r->print(&Apache::loncommon::end_data_table_row().
 8011:               &Apache::loncommon::end_data_table());
 8012: }
 8013: 
 8014: =pod
 8015: 
 8016: =item num_matches
 8017: 
 8018:    Counts the number of characters that are the same between the two arguments.
 8019: 
 8020:  Arguments:
 8021:    $orig - CODE from the scanline
 8022:    $code - CODE to match against
 8023: 
 8024:  Returns:
 8025:    $count - integer count of the number of same characters between the
 8026:             two arguments
 8027: 
 8028: =cut
 8029: 
 8030: sub num_matches {
 8031:     my ($orig,$code) = @_;
 8032:     my @code=split(//,$code);
 8033:     my @orig=split(//,$orig);
 8034:     my $same=0;
 8035:     for (my $i=0;$i<scalar(@code);$i++) {
 8036: 	if ($code[$i] eq $orig[$i]) { $same++; }
 8037:     }
 8038:     return $same;
 8039: }
 8040: 
 8041: =pod
 8042: 
 8043: =item scantron_get_closely_matching_CODEs
 8044: 
 8045:    Cycles through all CODEs and finds the set that has the greatest
 8046:    number of same characters as the provided CODE
 8047: 
 8048:  Arguments:
 8049:    $allcodes - hash ref returned by &get_codes()
 8050:    $CODE     - CODE from the current scanline
 8051: 
 8052:  Returns:
 8053:    2 element list
 8054:     - first elements is number of how closely matching the best fit is 
 8055:       (5 means best set has 5 matching characters)
 8056:     - second element is an arrary ref containing the set of valid CODEs
 8057:       that best fit the passed in CODE
 8058: 
 8059: =cut
 8060: 
 8061: sub scantron_get_closely_matching_CODEs {
 8062:     my ($allcodes,$CODE)=@_;
 8063:     my @CODEs;
 8064:     foreach my $testcode (sort(keys(%{$allcodes}))) {
 8065: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
 8066:     }
 8067: 
 8068:     return ($#CODEs,$CODEs[-1]);
 8069: }
 8070: 
 8071: =pod
 8072: 
 8073: =item get_codes
 8074: 
 8075:    Builds a hash which has keys of all of the valid CODEs from the selected
 8076:    set of remembered CODEs.
 8077: 
 8078:  Arguments:
 8079:   $old_name - name of the set of remembered CODEs
 8080:   $cdom     - domain of the course
 8081:   $cnum     - internal course name
 8082: 
 8083:  Returns:
 8084:   %allcodes - keys are the valid CODEs, values are all 1
 8085: 
 8086: =cut
 8087: 
 8088: sub get_codes {
 8089:     my ($old_name, $cdom, $cnum) = @_;
 8090:     if (!$old_name) {
 8091: 	$old_name=$env{'form.scantron_CODElist'};
 8092:     }
 8093:     if (!$cdom) {
 8094: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
 8095:     }
 8096:     if (!$cnum) {
 8097: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
 8098:     }
 8099:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
 8100: 				    $cdom,$cnum);
 8101:     my %allcodes;
 8102:     if ($result{"type\0$old_name"} eq 'number') {
 8103: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
 8104:     } else {
 8105: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
 8106:     }
 8107:     return %allcodes;
 8108: }
 8109: 
 8110: =pod
 8111: 
 8112: =item scantron_validate_CODE
 8113: 
 8114:    Validates all scanlines in the selected file to not have any
 8115:    invalid or underspecified CODEs and that none of the codes are
 8116:    duplicated if this was requested.
 8117: 
 8118: =cut
 8119: 
 8120: sub scantron_validate_CODE {
 8121:     my ($r,$currentphase) = @_;
 8122:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 8123:     if ($scantron_config{'CODElocation'} &&
 8124: 	$scantron_config{'CODEstart'} &&
 8125: 	$scantron_config{'CODElength'}) {
 8126: 	if (!defined($env{'form.scantron_CODElist'})) {
 8127: 	    &FIXME_blow_up()
 8128: 	}
 8129:     } else {
 8130: 	return (0,$currentphase+1);
 8131:     }
 8132:     
 8133:     my %usedCODEs;
 8134: 
 8135:     my %allcodes=&get_codes();
 8136: 
 8137:     my $nav_error;
 8138:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
 8139:     if ($nav_error) {
 8140:         $r->print(&navmap_errormsg());
 8141:         return(1,$currentphase);
 8142:     }
 8143: 
 8144:     my ($scanlines,$scan_data)=&scantron_getfile();
 8145:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8146: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8147: 	if ($line=~/^[\s\cz]*$/) { next; }
 8148: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8149: 						 $scan_data);
 8150: 	my $CODE=$$scan_record{'scantron.CODE'};
 8151: 	my $error=0;
 8152: 	if (!&Apache::lonnet::validCODE($CODE)) {
 8153: 	    &scantron_get_correction($r,$i,$scan_record,
 8154: 				     \%scantron_config,
 8155: 				     $line,'incorrectCODE',\%allcodes);
 8156: 	    return(1,$currentphase);
 8157: 	}
 8158: 	if (%allcodes && !exists($allcodes{$CODE}) 
 8159: 	    && !$$scan_record{'scantron.useCODE'}) {
 8160: 	    &scantron_get_correction($r,$i,$scan_record,
 8161: 				     \%scantron_config,
 8162: 				     $line,'incorrectCODE',\%allcodes);
 8163: 	    return(1,$currentphase);
 8164: 	}
 8165: 	if (exists($usedCODEs{$CODE}) 
 8166: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
 8167: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
 8168: 	    &scantron_get_correction($r,$i,$scan_record,
 8169: 				     \%scantron_config,
 8170: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
 8171: 	    return(1,$currentphase);
 8172: 	}
 8173: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
 8174:     }
 8175:     return (0,$currentphase+1);
 8176: }
 8177: 
 8178: =pod
 8179: 
 8180: =item scantron_validate_doublebubble
 8181: 
 8182:    Validates all scanlines in the selected file to not have any
 8183:    bubble lines with multiple bubbles marked.
 8184: 
 8185: =cut
 8186: 
 8187: sub scantron_validate_doublebubble {
 8188:     my ($r,$currentphase) = @_;
 8189:     #get student info
 8190:     my $classlist=&Apache::loncoursedata::get_classlist();
 8191:     my %idmap=&username_to_idmap($classlist);
 8192:     my (undef,undef,$sequence)=
 8193:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8194: 
 8195:     #get scantron line setup
 8196:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 8197:     my ($scanlines,$scan_data)=&scantron_getfile();
 8198: 
 8199:     my $navmap = Apache::lonnavmaps::navmap->new();
 8200:     unless (ref($navmap)) {
 8201:         $r->print(&navmap_errormsg());
 8202:         return(1,$currentphase);
 8203:     }
 8204:     my $map=$navmap->getResourceByUrl($sequence);
 8205:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8206:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8207:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 8208:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8209: 
 8210:     my $nav_error;
 8211:     if (ref($map)) {
 8212:         $randomorder = $map->randomorder();
 8213:         $randompick = $map->randompick();
 8214:         if ($randomorder || $randompick) {
 8215:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8216:             if ($nav_error) {
 8217:                 $r->print(&navmap_errormsg());
 8218:                 return(1,$currentphase);
 8219:             }
 8220:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8221:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 8222:         }
 8223:     } else {
 8224:         $r->print(&navmap_errormsg());
 8225:         return(1,$currentphase);
 8226:     }
 8227: 
 8228:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
 8229:     if ($nav_error) {
 8230:         $r->print(&navmap_errormsg());
 8231:         return(1,$currentphase);
 8232:     }
 8233: 
 8234:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8235: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8236: 	if ($line=~/^[\s\cz]*$/) { next; }
 8237: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8238: 						 $scan_data,undef,\%idmap,$randomorder,
 8239:                                                  $randompick,$sequence,\@master_seq,
 8240:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 8241:                                                  \%orderedforcode,\%respnumlookup,\%startline);
 8242: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 8243: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 8244: 				 'doublebubble',
 8245: 				 $$scan_record{'scantron.doubleerror'},
 8246:                                  $randomorder,$randompick,\%respnumlookup,\%startline);
 8247:     	return (1,$currentphase);
 8248:     }
 8249:     return (0,$currentphase+1);
 8250: }
 8251: 
 8252: 
 8253: sub scantron_get_maxbubble {
 8254:     my ($nav_error,$scantron_config) = @_;
 8255:     if (defined($env{'form.scantron_maxbubble'}) &&
 8256: 	$env{'form.scantron_maxbubble'}) {
 8257: 	&restore_bubble_lines();
 8258: 	return $env{'form.scantron_maxbubble'};
 8259:     }
 8260: 
 8261:     my (undef, undef, $sequence) =
 8262: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 8263: 
 8264:     my $navmap=Apache::lonnavmaps::navmap->new();
 8265:     unless (ref($navmap)) {
 8266:         if (ref($nav_error)) {
 8267:             $$nav_error = 1;
 8268:         }
 8269:         return;
 8270:     }
 8271:     my $map=$navmap->getResourceByUrl($sequence);
 8272:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8273:     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
 8274: 
 8275:     &Apache::lonxml::clear_problem_counter();
 8276: 
 8277:     my $uname       = $env{'user.name'};
 8278:     my $udom        = $env{'user.domain'};
 8279:     my $cid         = $env{'request.course.id'};
 8280:     my $total_lines = 0;
 8281:     %bubble_lines_per_response = ();
 8282:     %first_bubble_line         = ();
 8283:     %subdivided_bubble_lines   = ();
 8284:     %responsetype_per_response = ();
 8285:     %masterseq_id_responsenum  = ();
 8286: 
 8287:     my $response_number = 0;
 8288:     my $bubble_line     = 0;
 8289:     foreach my $resource (@resources) {
 8290:         my $resid = $resource->id();
 8291:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
 8292:                                                           $udom,undef,$bubbles_per_row);
 8293:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 8294: 	    foreach my $part_id (@{$parts}) {
 8295:                 my $lines;
 8296: 
 8297: 	        # TODO - make this a persistent hash not an array.
 8298: 
 8299:                 # optionresponse, matchresponse and rankresponse type items 
 8300:                 # render as separate sub-questions in exam mode.
 8301:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
 8302:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
 8303:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
 8304:                     my ($numbub,$numshown);
 8305:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
 8306:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
 8307:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
 8308:                         }
 8309:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
 8310:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
 8311:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
 8312:                         }
 8313:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
 8314:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
 8315:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
 8316:                         }
 8317:                     }
 8318:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
 8319:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
 8320:                     }
 8321:                     my $bubbles_per_row =
 8322:                         &bubblesheet_bubbles_per_row($scantron_config);
 8323:                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
 8324:                     if (($numbub % $bubbles_per_row) != 0) {
 8325:                         $inner_bubble_lines++;
 8326:                     }
 8327:                     for (my $i=0; $i<$numshown; $i++) {
 8328:                         $subdivided_bubble_lines{$response_number} .= 
 8329:                             $inner_bubble_lines.',';
 8330:                     }
 8331:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
 8332:                     $lines = $numshown * $inner_bubble_lines;
 8333:                 } else {
 8334:                     $lines = $analysis->{"$part_id.bubble_lines"};
 8335:                 }
 8336: 
 8337:                 $first_bubble_line{$response_number} = $bubble_line;
 8338: 	        $bubble_lines_per_response{$response_number} = $lines;
 8339:                 $responsetype_per_response{$response_number} = 
 8340:                     $analysis->{$part_id.'.type'};
 8341:                 $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;
 8342: 	        $response_number++;
 8343: 
 8344: 	        $bubble_line +=  $lines;
 8345: 	        $total_lines +=  $lines;
 8346: 	    }
 8347:         }
 8348:     }
 8349:     &Apache::lonnet::delenv('scantron.');
 8350: 
 8351:     &save_bubble_lines();
 8352:     $env{'form.scantron_maxbubble'} =
 8353: 	$total_lines;
 8354:     return $env{'form.scantron_maxbubble'};
 8355: }
 8356: 
 8357: sub bubblesheet_bubbles_per_row {
 8358:     my ($scantron_config) = @_;
 8359:     my $bubbles_per_row;
 8360:     if (ref($scantron_config) eq 'HASH') {
 8361:         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
 8362:     }
 8363:     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
 8364:         $bubbles_per_row = 10;
 8365:     }
 8366:     return $bubbles_per_row;
 8367: }
 8368: 
 8369: sub scantron_validate_missingbubbles {
 8370:     my ($r,$currentphase) = @_;
 8371:     #get student info
 8372:     my $classlist=&Apache::loncoursedata::get_classlist();
 8373:     my %idmap=&username_to_idmap($classlist);
 8374:     my (undef,undef,$sequence)=
 8375:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8376: 
 8377:     #get scantron line setup
 8378:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 8379:     my ($scanlines,$scan_data)=&scantron_getfile();
 8380: 
 8381:     my $navmap = Apache::lonnavmaps::navmap->new();
 8382:     unless (ref($navmap)) {
 8383:         $r->print(&navmap_errormsg());
 8384:         return(1,$currentphase);
 8385:     }
 8386: 
 8387:     my $map=$navmap->getResourceByUrl($sequence);
 8388:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8389:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8390:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 8391:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8392: 
 8393:     my $nav_error;
 8394:     if (ref($map)) {
 8395:         $randomorder = $map->randomorder();
 8396:         $randompick = $map->randompick();
 8397:         if ($randomorder || $randompick) {
 8398:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8399:             if ($nav_error) {
 8400:                 $r->print(&navmap_errormsg());
 8401:                 return(1,$currentphase);
 8402:             }
 8403:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8404:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 8405:         }
 8406:     } else {
 8407:         $r->print(&navmap_errormsg());
 8408:         return(1,$currentphase);
 8409:     }
 8410: 
 8411: 
 8412:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 8413:     if ($nav_error) {
 8414:         $r->print(&navmap_errormsg());
 8415:         return(1,$currentphase);
 8416:     }
 8417: 
 8418:     if (!$max_bubble) { $max_bubble=2**31; }
 8419:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8420: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8421: 	if ($line=~/^[\s\cz]*$/) { next; }
 8422:         my $scan_record =
 8423:             &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
 8424:                                      $randomorder,$randompick,$sequence,\@master_seq,
 8425:                                      \%symb_to_resource,\%grader_partids_by_symb,
 8426:                                      \%orderedforcode,\%respnumlookup,\%startline);
 8427: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 8428: 	my @to_correct;
 8429: 	
 8430: 	# Probably here's where the error is...
 8431: 
 8432: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
 8433:             my $lastbubble;
 8434:             if ($missing =~ /^(\d+)\.(\d+)$/) {
 8435:                 my $question = $1;
 8436:                 my $subquestion = $2;
 8437:                 my ($first,$responsenum);
 8438:                 if ($randomorder || $randompick) {
 8439:                     $responsenum = $respnumlookup{$question-1};
 8440:                     $first = $startline{$question-1};
 8441:                 } else {
 8442:                     $responsenum = $question-1;
 8443:                     $first = $first_bubble_line{$responsenum};
 8444:                 }
 8445:                 if (!defined($first)) { next; }
 8446:                 my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 8447:                 my $subcount = 1;
 8448:                 while ($subcount<$subquestion) {
 8449:                     $first += $subans[$subcount-1];
 8450:                     $subcount ++;
 8451:                 }
 8452:                 my $count = $subans[$subquestion-1];
 8453:                 $lastbubble = $first + $count;
 8454:             } else {
 8455:                 my ($first,$responsenum);
 8456:                 if ($randomorder || $randompick) {
 8457:                     $responsenum = $respnumlookup{$missing-1};
 8458:                     $first = $startline{$missing-1};
 8459:                 } else {
 8460:                     $responsenum = $missing-1;
 8461:                     $first = $first_bubble_line{$responsenum};
 8462:                 }
 8463:                 if (!defined($first)) { next; }
 8464:                 $lastbubble = $first + $bubble_lines_per_response{$responsenum};
 8465:             }
 8466:             if ($lastbubble > $max_bubble) { next; }
 8467: 	    push(@to_correct,$missing);
 8468: 	}
 8469: 	if (@to_correct) {
 8470: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 8471: 				     $line,'missingbubble',\@to_correct,
 8472:                                      $randomorder,$randompick,\%respnumlookup,
 8473:                                      \%startline);
 8474: 	    return (1,$currentphase);
 8475: 	}
 8476: 
 8477:     }
 8478:     return (0,$currentphase+1);
 8479: }
 8480: 
 8481: sub hand_bubble_option {
 8482:     my (undef, undef, $sequence) =
 8483:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8484:     return if ($sequence eq '');
 8485:     my $navmap = Apache::lonnavmaps::navmap->new();
 8486:     unless (ref($navmap)) {
 8487:         return;
 8488:     }
 8489:     my $needs_hand_bubbles;
 8490:     my $map=$navmap->getResourceByUrl($sequence);
 8491:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8492:     foreach my $res (@resources) {
 8493:         if (ref($res)) {
 8494:             if ($res->is_problem()) {
 8495:                 my $partlist = $res->parts();
 8496:                 foreach my $part (@{ $partlist }) {
 8497:                     my @types = $res->responseType($part);
 8498:                     if (grep(/^(chem|essay|image|formula|math|string|functionplot)$/,@types)) {
 8499:                         $needs_hand_bubbles = 1;
 8500:                         last;
 8501:                     }
 8502:                 }
 8503:             }
 8504:         }
 8505:     }
 8506:     if ($needs_hand_bubbles) {
 8507:         my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 8508:         my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8509:         return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
 8510:                &mt('If you have already graded these by bubbling sheets to indicate points awarded, [_1]what point value is assigned to a filled last bubble in each row?','<br />').
 8511:                '<label><input type="radio" name="scantron_lastbubblepoints" value="'.$bubbles_per_row.'" checked="checked" />'.&mt('[quant,_1,point]',$bubbles_per_row).'</label>&nbsp;'.&mt('or').'&nbsp;'.
 8512:                '<label><input type="radio" name="scantron_lastbubblepoints" value="0" />'.&mt('0 points').'</label></p>';
 8513:     }
 8514:     return;
 8515: }
 8516: 
 8517: sub scantron_process_students {
 8518:     my ($r) = @_;
 8519: 
 8520:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
 8521:     my ($symb)=&get_symb($r);
 8522:     if (!$symb) {
 8523: 	return '';
 8524:     }
 8525:     my $default_form_data=&defaultFormData($symb);
 8526: 
 8527:     my %scantron_config=&Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 8528:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8529:     my ($scanlines,$scan_data)=&scantron_getfile();
 8530:     my $classlist=&Apache::loncoursedata::get_classlist();
 8531:     my %idmap=&username_to_idmap($classlist);
 8532:     my $navmap=Apache::lonnavmaps::navmap->new();
 8533:     unless (ref($navmap)) {
 8534:         $r->print(&navmap_errormsg());
 8535:         return '';
 8536:     }
 8537:     my $map=$navmap->getResourceByUrl($sequence);
 8538:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8539:         %grader_randomlists_by_symb);
 8540:     if (ref($map)) {
 8541:         $randomorder = $map->randomorder();
 8542:         $randompick = $map->randompick();
 8543:     } else {
 8544:         $r->print(&navmap_errormsg());
 8545:         return '';
 8546:     }
 8547:     my $nav_error;
 8548:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8549:     if ($randomorder || $randompick) {
 8550:         $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8551:         if ($nav_error) {
 8552:             $r->print(&navmap_errormsg());
 8553:             return '';
 8554:         }
 8555:     }
 8556:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8557:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 8558: 
 8559:     my ($uname,$udom);
 8560:     my $result= <<SCANTRONFORM;
 8561: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 8562:   <input type="hidden" name="command" value="scantron_configphase" />
 8563:   $default_form_data
 8564: SCANTRONFORM
 8565:     $r->print($result);
 8566: 
 8567:     my @delayqueue;
 8568:     my (%completedstudents,%scandata);
 8569:     
 8570:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
 8571:     my $count=&get_todo_count($scanlines,$scan_data);
 8572:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 8573:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 8574: 					  'Processing first student');
 8575:     $r->print('<br />');
 8576:     my $start=&Time::HiRes::time();
 8577:     my $i=-1;
 8578:     my $started;
 8579: 
 8580:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 8581:     if ($nav_error) {
 8582:         $r->print(&navmap_errormsg());
 8583:         return '';
 8584:     }
 8585: 
 8586:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
 8587:     # the user and return.
 8588: 
 8589:     if ($ssi_error) {
 8590: 	$r->print("</form>");
 8591: 	&ssi_print_error($r);
 8592: 	$r->print(&show_grading_menu_form($symb));
 8593:         &Apache::lonnet::remove_lock($lock);
 8594: 	return '';		# Dunno why the other returns return '' rather than just returning.
 8595:     }
 8596: 
 8597:     my %lettdig = &Apache::lonnet::letter_to_digits();
 8598:     my $numletts = scalar(keys(%lettdig));
 8599:     my %orderedforcode;
 8600: 
 8601:     while ($i<$scanlines->{'count'}) {
 8602:  	($uname,$udom)=('','');
 8603:  	$i++;
 8604:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8605:  	if ($line=~/^[\s\cz]*$/) { next; }
 8606: 	if ($started) {
 8607: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 8608: 						     'last student');
 8609: 	}
 8610: 	$started=1;
 8611:         my %respnumlookup = ();
 8612:         my %startline = ();
 8613:         my $total;
 8614:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8615:  						 $scan_data,undef,\%idmap,$randomorder,
 8616:                                                  $randompick,$sequence,\@master_seq,
 8617:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 8618:                                                  \%orderedforcode,\%respnumlookup,\%startline,
 8619:                                                  \$total);
 8620:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
 8621:  					      \%idmap,$i)) {
 8622:   	    &scantron_add_delay(\@delayqueue,$line,
 8623:  				'Unable to find a student that matches',1);
 8624:  	    next;
 8625:   	}
 8626:  	if (exists $completedstudents{$uname}) {
 8627:  	    &scantron_add_delay(\@delayqueue,$line,
 8628:  				'Student '.$uname.' has multiple sheets',2);
 8629:  	    next;
 8630:  	}
 8631:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 8632:         my $user = $uname.':'.$usec;
 8633:   	($uname,$udom)=split(/:/,$uname);
 8634: 
 8635:         my $scancode;
 8636:         if ((exists($scan_record->{'scantron.CODE'})) &&
 8637:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 8638:             $scancode = $scan_record->{'scantron.CODE'};
 8639:         } else {
 8640:             $scancode = '';
 8641:         }
 8642: 
 8643:         my @mapresources = @resources;
 8644:         if ($randomorder || $randompick) {
 8645:             @mapresources =
 8646:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 8647:                              \%orderedforcode);
 8648:         }
 8649:         my (%partids_by_symb,$res_error);
 8650:         foreach my $resource (@mapresources) {
 8651:             my $ressymb;
 8652:             if (ref($resource)) {
 8653:                 $ressymb = $resource->symb();
 8654:             } else {
 8655:                 $res_error = 1;
 8656:                 last;
 8657:             }
 8658:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8659:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8660:                 my $currcode;
 8661:                 if (exists($grader_randomlists_by_symb{$ressymb})) {
 8662:                     $currcode = $scancode;
 8663:                 }
 8664:                 my ($analysis,$parts) =
 8665:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 8666:                                               $uname,$udom,undef,$bubbles_per_row,
 8667:                                               $currcode);
 8668:                 $partids_by_symb{$ressymb} = $parts;
 8669:             } else {
 8670:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
 8671:             }
 8672:         }
 8673: 
 8674:         if ($res_error) {
 8675:             &scantron_add_delay(\@delayqueue,$line,
 8676:                                 'An error occurred while grading student '.$uname,2);
 8677:             next;
 8678:         }
 8679: 
 8680: 	&Apache::lonxml::clear_problem_counter();
 8681:   	&Apache::lonnet::appenv($scan_record);
 8682: 
 8683: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
 8684: 	    &scantron_putfile($scanlines,$scan_data);
 8685: 	}
 8686: 	
 8687:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8688:                                    \@mapresources,\%partids_by_symb,
 8689:                                    $bubbles_per_row,$randomorder,$randompick,
 8690:                                    \%respnumlookup,\%startline) 
 8691:             eq 'ssi_error') {
 8692:             $ssi_error = 0; # So end of handler error message does not trigger.
 8693:             $r->print("</form>");
 8694:             &ssi_print_error($r);
 8695:             $r->print(&show_grading_menu_form($symb));
 8696:             &Apache::lonnet::remove_lock($lock);
 8697:             return '';      # Why return ''?  Beats me.
 8698:         }
 8699: 
 8700:         if (($scancode) && ($randomorder || $randompick)) {
 8701:             my $parmresult =
 8702:                 &Apache::lonparmset::storeparm_by_symb($symb,
 8703:                                                        '0_examcode',2,$scancode,
 8704:                                                        'string_examcode',$uname,
 8705:                                                        $udom);
 8706:         }
 8707: 	$completedstudents{$uname}={'line'=>$line};
 8708:         if ($env{'form.verifyrecord'}) {
 8709:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8710:             if ($randompick) {
 8711:                 if ($total) {
 8712:                     $lastpos = $total*$scantron_config{'Qlength'};
 8713:                 }
 8714:             }
 8715: 
 8716:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8717:             chomp($studentdata);
 8718:             $studentdata =~ s/\r$//;
 8719:             my $studentrecord = '';
 8720:             my $counter = -1;
 8721:             foreach my $resource (@mapresources) {
 8722:                 my $ressymb = $resource->symb();
 8723:                 ($counter,my $recording) =
 8724:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8725:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
 8726:                                              \%scantron_config,\%lettdig,$numletts,$randomorder,
 8727:                                              $randompick,\%respnumlookup,\%startline);
 8728:                 $studentrecord .= $recording;
 8729:             }
 8730:             if ($studentrecord ne $studentdata) {
 8731:                 &Apache::lonxml::clear_problem_counter();
 8732:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8733:                                            \@mapresources,\%partids_by_symb,
 8734:                                            $bubbles_per_row,$randomorder,$randompick,
 8735:                                            \%respnumlookup,\%startline)
 8736:                     eq 'ssi_error') {
 8737:                     $ssi_error = 0; # So end of handler error message does not trigger.
 8738:                     $r->print("</form>");
 8739:                     &ssi_print_error($r);
 8740:                     $r->print(&show_grading_menu_form($symb));
 8741:                     &Apache::lonnet::remove_lock($lock);
 8742:                     delete($completedstudents{$uname});
 8743:                     return '';
 8744:                 }
 8745:                 $counter = -1;
 8746:                 $studentrecord = '';
 8747:                 foreach my $resource (@mapresources) {
 8748:                     my $ressymb = $resource->symb();
 8749:                     ($counter,my $recording) =
 8750:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8751:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
 8752:                                                  \%scantron_config,\%lettdig,$numletts,
 8753:                                                  $randomorder,$randompick,\%respnumlookup,
 8754:                                                  \%startline);
 8755:                     $studentrecord .= $recording;
 8756:                 }
 8757:                 if ($studentrecord ne $studentdata) {
 8758:                     $r->print('<p><span class="LC_warning">');
 8759:                     if ($scancode eq '') {
 8760:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
 8761:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
 8762:                     } else {
 8763:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
 8764:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
 8765:                     }
 8766:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
 8767:                               &Apache::loncommon::start_data_table_header_row()."\n".
 8768:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
 8769:                               &Apache::loncommon::end_data_table_header_row()."\n".
 8770:                               &Apache::loncommon::start_data_table_row().
 8771:                               '<td>'.&mt('Bubblesheet').'</td>'.
 8772:                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
 8773:                               &Apache::loncommon::end_data_table_row().
 8774:                               &Apache::loncommon::start_data_table_row().
 8775:                               '<td>'.&mt('Stored submissions').'</td>'.
 8776:                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
 8777:                               &Apache::loncommon::end_data_table_row().
 8778:                               &Apache::loncommon::end_data_table().'</p>');
 8779:                 } else {
 8780:                     $r->print('<br /><span class="LC_warning">'.
 8781:                              &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 />'.
 8782:                              &mt("As a consequence, this user's submission history records two tries.").
 8783:                                  '</span><br />');
 8784:                 }
 8785:             }
 8786:         }
 8787:         if (&Apache::loncommon::connection_aborted($r)) { last; }
 8788:     } continue {
 8789: 	&Apache::lonxml::clear_problem_counter();
 8790: 	&Apache::lonnet::delenv('scantron.');
 8791:     }
 8792:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8793:     &Apache::lonnet::remove_lock($lock);
 8794: #    my $lasttime = &Time::HiRes::time()-$start;
 8795: #    $r->print("<p>took $lasttime</p>");
 8796: 
 8797:     $r->print("</form>");
 8798:     $r->print(&show_grading_menu_form($symb));
 8799:     return '';
 8800: }
 8801: 
 8802: sub graders_resources_pass {
 8803:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
 8804:         $bubbles_per_row) = @_;
 8805:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
 8806:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
 8807:         foreach my $resource (@{$resources}) {
 8808:             my $ressymb = $resource->symb();
 8809:             my ($analysis,$parts) =
 8810:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
 8811:                                           $env{'user.name'},$env{'user.domain'},
 8812:                                           1,$bubbles_per_row);
 8813:             $grader_partids_by_symb->{$ressymb} = $parts;
 8814:             if (ref($analysis) eq 'HASH') {
 8815:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 8816:                     $grader_randomlists_by_symb->{$ressymb} =
 8817:                         $analysis->{'parts_withrandomlist'};
 8818:                 }
 8819:             }
 8820:         }
 8821:     }
 8822:     return;
 8823: }
 8824: 
 8825: =pod
 8826: 
 8827: =item users_order
 8828: 
 8829:   Returns array of resources in current map, ordered based on either CODE,
 8830:   if this is a CODEd exam, or based on student's identity if this is a
 8831:   "NAMEd" exam.
 8832: 
 8833:   Should be used when randomorder and/or randompick applied when the 
 8834:   corresponding exam was printed, prior to students completing bubblesheets 
 8835:   for the version of the exam the student received.
 8836: 
 8837: =cut
 8838: 
 8839: sub users_order  {
 8840:     my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
 8841:     my @mapresources;
 8842:     unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
 8843:         return @mapresources;
 8844:     }
 8845:     if ($scancode) {
 8846:         if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
 8847:             @mapresources = @{$orderedforcode->{$scancode}};
 8848:         } else {
 8849:             $env{'form.CODE'} = $scancode;
 8850:             my $actual_seq =
 8851:                 &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8852:                                                                $master_seq,
 8853:                                                                $user,$scancode,1);
 8854:             if (ref($actual_seq) eq 'ARRAY') {
 8855:                 @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
 8856:                 if (ref($orderedforcode) eq 'HASH') {
 8857:                     if (@mapresources > 0) {
 8858:                         $orderedforcode->{$scancode} = \@mapresources;
 8859:                     }
 8860:                 }
 8861:             }
 8862:             delete($env{'form.CODE'});
 8863:         }
 8864:     } else {
 8865:         my $actual_seq =
 8866:             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8867:                                                            $master_seq,
 8868:                                                            $user,undef,1);
 8869:         if (ref($actual_seq) eq 'ARRAY') {
 8870:             @mapresources =
 8871:                 map { $symb_to_resource->{$_}; } @{$actual_seq};
 8872:         }
 8873:     }
 8874:     return @mapresources;
 8875: }
 8876: 
 8877: sub grade_student_bubbles {
 8878:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
 8879:         $randomorder,$randompick,$respnumlookup,$startline) = @_;
 8880:     my $uselookup = 0;
 8881:     if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
 8882:         (ref($startline) eq 'HASH')) {
 8883:         $uselookup = 1;
 8884:     }
 8885: 
 8886:     if (ref($resources) eq 'ARRAY') {
 8887:         my $count = 0;
 8888:         foreach my $resource (@{$resources}) {
 8889:             my $ressymb = $resource->symb();
 8890:             my %form = ('submitted'      => 'scantron',
 8891:                         'grade_target'   => 'grade',
 8892:                         'grade_username' => $uname,
 8893:                         'grade_domain'   => $udom,
 8894:                         'grade_courseid' => $env{'request.course.id'},
 8895:                         'grade_symb'     => $ressymb,
 8896:                         'CODE'           => $scancode
 8897:                        );
 8898:             if ($bubbles_per_row ne '') {
 8899:                 $form{'bubbles_per_row'} = $bubbles_per_row;
 8900:             }
 8901:             if ($env{'form.scantron_lastbubblepoints'} ne '') {
 8902:                 $form{'scantron_lastbubblepoints'} = $env{'form.scantron_lastbubblepoints'};
 8903:             }
 8904:             if (ref($parts) eq 'HASH') {
 8905:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
 8906:                     foreach my $part (@{$parts->{$ressymb}}) {
 8907:                         if ($uselookup) {
 8908:                             $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
 8909:                         } else {
 8910:                             $form{'scantron_questnum_start.'.$part} =
 8911:                                 1+$env{'form.scantron.first_bubble_line.'.$count};
 8912:                         }
 8913:                         $count++;
 8914:                     }
 8915:                 }
 8916:             }
 8917:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
 8918:             return 'ssi_error' if ($ssi_error);
 8919:             last if (&Apache::loncommon::connection_aborted($r));
 8920:         }
 8921:     }
 8922:     return;
 8923: }
 8924: 
 8925: sub scantron_upload_scantron_data {
 8926:     my ($r)=@_;
 8927:     my $dom = $env{'request.role.domain'};
 8928:     my ($formatoptions,$formattitle,$formatjs) = &scantron_upload_dataformat($dom);
 8929:     my $domdesc = &Apache::lonnet::domain($dom,'description');
 8930:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
 8931:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
 8932: 							  'domainid',
 8933: 							  'coursename',$dom);
 8934:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
 8935:                        ('&nbsp'x2).&mt('(shows course personnel)');
 8936:     my ($symb) = &get_symb($r,1);
 8937:     my $default_form_data=&defaultFormData($symb);
 8938:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
 8939:     &js_escape(\$nofile_alert);
 8940:     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.");
 8941:     &js_escape(\$nocourseid_alert);
 8942:     $r->print(&Apache::lonhtmlcommon::scripttag('
 8943:     function checkUpload(formname) {
 8944: 	if (formname.upfile.value == "") {
 8945: 	    alert("'.$nofile_alert.'");
 8946: 	    return false;
 8947: 	}
 8948:         if (formname.courseid.value == "") {
 8949:             alert("'.$nocourseid_alert.'");
 8950:             return false;
 8951:         }
 8952: 	formname.submit();
 8953:     }
 8954: 
 8955:     function ToSyllabus() {
 8956:         var cdom = '."'$dom'".';
 8957:         var cnum = document.rules.courseid.value;
 8958:         if (cdom == "" || cdom == null) {
 8959:             return;
 8960:         }
 8961:         if (cnum == "" || cnum == null) {
 8962:            return;
 8963:         }
 8964:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
 8965:                             "height=350,width=350,scrollbars=yes,menubar=no");
 8966:         return;
 8967:     }
 8968: 
 8969:     '.$formatjs.'
 8970: '));
 8971:     $r->print('
 8972: <h3>'.&mt('Send bubblesheet data to a course').'</h3>
 8973: 
 8974: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 8975: '.$default_form_data.
 8976:   &Apache::lonhtmlcommon::start_pick_box().
 8977:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
 8978:   '<input name="courseid" type="text" size="30" />'.$select_link.
 8979:   &Apache::lonhtmlcommon::row_closure().
 8980:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
 8981:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
 8982:   &Apache::lonhtmlcommon::row_closure().
 8983:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
 8984:   '<input name="domainid" type="hidden" />'.$domdesc.
 8985:   &Apache::lonhtmlcommon::row_closure());
 8986:     if ($formatoptions) {
 8987:         $r->print(&Apache::lonhtmlcommon::row_title($formattitle).$formatoptions.
 8988:                   &Apache::lonhtmlcommon::row_closure());
 8989:     }
 8990:     $r->print(
 8991:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
 8992:   '<input type="file" name="upfile" size="50" />'.
 8993:   &Apache::lonhtmlcommon::row_closure(1).
 8994:   &Apache::lonhtmlcommon::end_pick_box().'<br />
 8995: 
 8996: <input name="command" value="scantronupload_save" type="hidden" />
 8997: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 8998: </form>
 8999: ');
 9000:     return '';
 9001: }
 9002: 
 9003: sub scantron_upload_dataformat {
 9004:     my ($dom) = @_;
 9005:     my ($formatoptions,$formattitle,$formatjs);
 9006:     $formatjs = <<'END';
 9007: function toggleScantab(form) {
 9008:    return;
 9009: }
 9010: END
 9011:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$dom);
 9012:     if (ref($domconfig{'scantron'}) eq 'HASH') {
 9013:         if (ref($domconfig{'scantron'}{'config'}) eq 'HASH') {
 9014:             if (keys(%{$domconfig{'scantron'}{'config'}}) > 1) {
 9015:                 if (($domconfig{'scantron'}{'config'}{'dat'}) &&
 9016:                     (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH')) {
 9017:                     if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
 9018:                         if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}})) {
 9019:                             my ($onclick,$formatextra,$singleline);
 9020:                             my @lines = &Apache::lonnet::get_scantronformat_file();
 9021:                             my $count = 0;
 9022:                             foreach my $line (@lines) {
 9023:                                 next if ($line =~ /^#/);
 9024:                                 $singleline = $line;
 9025:                                 $count ++;
 9026:                             }
 9027:                             if ($count > 1) {
 9028:                                 $formatextra = '<div style="display:none" id="bubbletype">'.
 9029:                                                '<span class="LC_nobreak">'.
 9030:                                                &mt('Bubblesheet type:').'&nbsp;'.
 9031:                                                &scantron_scantab().'</span></div>';
 9032:                                 $onclick = ' onclick="toggleScantab(this.form);"';
 9033:                                 $formatjs = <<"END";
 9034: function toggleScantab(form) {
 9035:     var divid = 'bubbletype';
 9036:     if (document.getElementById(divid)) {
 9037:         var radioname = 'fileformat';
 9038:         var num = form.elements[radioname].length;
 9039:         if (num) {
 9040:             for (var i=0; i<num; i++) {
 9041:                 if (form.elements[radioname][i].checked) {
 9042:                     var chosen = form.elements[radioname][i].value;
 9043:                     if (chosen == 'dat') {
 9044:                         document.getElementById(divid).style.display = 'none';
 9045:                     } else if (chosen == 'csv') {
 9046:                         document.getElementById(divid).style.display = 'block';
 9047:                     }
 9048:                 }
 9049:             }
 9050:         }
 9051:     }
 9052:     return;
 9053: }
 9054: 
 9055: END
 9056:                             } elsif ($count == 1) {
 9057:                                 my $formatname = (split(/:/,$singleline,2))[0];
 9058:                                 $formatextra = '<input type="hidden" name="scantron_format" value="'.$formatname.'" />';
 9059:                             }
 9060:                             $formattitle = &mt('File format');
 9061:                             $formatoptions = '<label><input name="fileformat" type="radio" value="dat" checked="checked"'.$onclick.' />'.
 9062:                                              &mt('Plain Text (no delimiters)').
 9063:                                              '</label>'.('&nbsp;'x2).
 9064:                                              '<label><input name="fileformat" type="radio" value="csv"'.$onclick.' />'.
 9065:                                              &mt('Comma separated values').'</label>'.$formatextra;
 9066:                         }
 9067:                     }
 9068:                 }
 9069:             } elsif (keys(%{$domconfig{'scantron'}{'config'}}) == 1) {
 9070:                 if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
 9071:                     if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}})) {
 9072:                         $formattitle = &mt('Bubblesheet type');
 9073:                         $formatoptions = &scantron_scantab();
 9074:                     }
 9075:                 }
 9076:             }
 9077:         }
 9078:     }
 9079:     return ($formatoptions,$formattitle,$formatjs);
 9080: }
 9081: 
 9082: sub scantron_upload_scantron_data_save {
 9083:     my($r)=@_;
 9084:     my ($symb)=&get_symb($r,1);
 9085:     my $doanotherupload=
 9086: 	'<br /><form action="/adm/grades" method="post">'."\n".
 9087: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
 9088: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
 9089: 	'</form>'."\n";
 9090:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 9091: 	!&Apache::lonnet::allowed('usc',
 9092: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
 9093: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
 9094: 	if ($symb) {
 9095: 	    $r->print(&show_grading_menu_form($symb));
 9096: 	} else {
 9097: 	    $r->print($doanotherupload);
 9098: 	}
 9099: 	return '';
 9100:     }
 9101:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
 9102:     my $uploadedfile;
 9103:     $r->print('<p>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</p>');
 9104:     if (length($env{'form.upfile'}) < 2) {
 9105:         $r->print(
 9106:             &Apache::lonhtmlcommon::confirm_success(
 9107:                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
 9108:                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1));
 9109:     } else {
 9110:         my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$env{'form.domainid'});
 9111:         my $parser;
 9112:         if (ref($domconfig{'scantron'}) eq 'HASH') {
 9113:             if (ref($domconfig{'scantron'}{'config'}) eq 'HASH') {
 9114:                 my $is_csv;
 9115:                 my @possibles = keys(%{$domconfig{'scantron'}{'config'}});
 9116:                 if (@possibles > 1) {
 9117:                     if ($env{'form.fileformat'} eq 'csv') {
 9118:                         if (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH') {
 9119:                             if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
 9120:                                 if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}}) > 1) {
 9121:                                     $is_csv = 1;
 9122:                                 }
 9123:                             }
 9124:                         }
 9125:                     }
 9126:                 } elsif (@possibles == 1) {
 9127:                     if (ref($domconfig{'scantron'}{'config'}{'csv'}) eq 'HASH') {
 9128:                         if (ref($domconfig{'scantron'}{'config'}{'csv'}{'fields'}) eq 'HASH') {
 9129:                             if (keys(%{$domconfig{'scantron'}{'config'}{'csv'}{'fields'}}) > 1) {
 9130:                                 $is_csv = 1;
 9131:                             }
 9132:                         }
 9133:                     }
 9134:                 }
 9135:                 if ($is_csv) {
 9136:                    $parser = $domconfig{'scantron'}{'config'}{'csv'};
 9137:                 }
 9138:             }
 9139:         }
 9140:         my $result =
 9141:             &Apache::lonnet::userfileupload('upfile','scantron','scantron',$parser,'','',
 9142:                                             $env{'form.courseid'},$env{'form.domainid'});
 9143: 	if ($result =~ m{^/uploaded/}) {
 9144:             $r->print(
 9145:                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
 9146:                 &mt('Uploaded [_1] bytes of data into location: [_2]',
 9147:                         (length($env{'form.upfile'})-1),
 9148:                         '<span class="LC_filename">'.$result.'</span>'));
 9149:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
 9150:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
 9151:                                                        $env{'form.courseid'},$uploadedfile));
 9152: 	} else {
 9153:             $r->print(
 9154:                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
 9155:                     &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
 9156:                           $result,
 9157: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 9158: 	}
 9159:     }
 9160:     if ($symb) {
 9161: 	$r->print(&scantron_selectphase($r,$uploadedfile));
 9162:     } else {
 9163: 	$r->print($doanotherupload);
 9164:     }
 9165:     return '';
 9166: }
 9167: 
 9168: sub validate_uploaded_scantron_file {
 9169:     my ($cdom,$cname,$fname) = @_;
 9170:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
 9171:     my @lines;
 9172:     if ($scanlines ne '-1') {
 9173:         @lines=split("\n",$scanlines,-1);
 9174:     }
 9175:     my $output;
 9176:     if (@lines) {
 9177:         my (%counts,$max_match_format);
 9178:         my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
 9179:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
 9180:         my %idmap = &username_to_idmap($classlist);
 9181:         foreach my $key (keys(%idmap)) {
 9182:             my $lckey = lc($key);
 9183:             $idmap{$lckey} = $idmap{$key};
 9184:         }
 9185:         my %unique_formats;
 9186:         my @formatlines = &Apache::lonnet::get_scantronformat_file();
 9187:         foreach my $line (@formatlines) {
 9188:             chomp($line);
 9189:             my @config = split(/:/,$line);
 9190:             my $idstart = $config[5];
 9191:             my $idlength = $config[6];
 9192:             if (($idstart ne '') && ($idlength > 0)) {
 9193:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
 9194:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
 9195:                 } else {
 9196:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
 9197:                 }
 9198:             }
 9199:         }
 9200:         foreach my $key (keys(%unique_formats)) {
 9201:             my ($idstart,$idlength) = split(':',$key);
 9202:             %{$counts{$key}} = (
 9203:                                'found'   => 0,
 9204:                                'total'   => 0,
 9205:                               );
 9206:             foreach my $line (@lines) {
 9207:                 next if ($line =~ /^#/);
 9208:                 next if ($line =~ /^[\s\cz]*$/);
 9209:                 my $id = substr($line,$idstart-1,$idlength);
 9210:                 $id = lc($id);
 9211:                 if (exists($idmap{$id})) {
 9212:                     $counts{$key}{'found'} ++;
 9213:                 }
 9214:                 $counts{$key}{'total'} ++;
 9215:             }
 9216:             if ($counts{$key}{'total'}) {
 9217:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
 9218:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
 9219:                     $max_match_pct = $percent_match;
 9220:                     $max_match_format = $key;
 9221:                     $found_match_count = $counts{$key}{'found'};
 9222:                     $max_match_count = $counts{$key}{'total'};
 9223:                 }
 9224:             }
 9225:         }
 9226:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
 9227:             my $format_descs;
 9228:             my $numwithformat = @{$unique_formats{$max_match_format}};
 9229:             for (my $i=0; $i<$numwithformat; $i++) {
 9230:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
 9231:                 if ($i<$numwithformat-2) {
 9232:                     $format_descs .= '"<i>'.$desc.'</i>", ';
 9233:                 } elsif ($i==$numwithformat-2) {
 9234:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
 9235:                 } elsif ($i==$numwithformat-1) {
 9236:                     $format_descs .= '"<i>'.$desc.'</i>"';
 9237:                 }
 9238:             }
 9239:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
 9240:             $output .= '<br />';
 9241:             if ($found_match_count == $max_match_count) {
 9242:                 # 100% matching entries
 9243:                 $output .= &Apache::lonhtmlcommon::confirm_success(
 9244:                      &mt('Comparison of student IDs: [_1] matching ([quant,_2,entry,entries])',
 9245:                             '<b>'.$showpct.'</b>',$found_match_count)).'<br />'.
 9246:                 &mt('Comparison of student IDs in the uploaded file with'.
 9247:                     ' the course roster found matches for [_1] of the [_2] entries'.
 9248:                     ' in the file (for the format defined for [_3]).',
 9249:                         '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs);
 9250:             } else {
 9251:                 # Not all entries matching? -> Show warning and additional info
 9252:                 $output .=
 9253:                     &Apache::lonhtmlcommon::confirm_success(
 9254:                         &mt('Comparison of student IDs: [_1] matching ([_2]/[quant,_3,entry,entries])',
 9255:                                 '<b>'.$showpct.'</b>',$found_match_count,$max_match_count).'<br />'.
 9256:                         &mt('Not all entries could be matched!'),1).'<br />'.
 9257:                     &mt('Comparison of student IDs in the uploaded file with'.
 9258:                         ' the course roster found matches for [_1] of the [_2] entries'.
 9259:                         ' in the file (for the format defined for [_3]).',
 9260:                             '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
 9261:                     '<p class="LC_info">'.
 9262:                     &mt('A low percentage of matches results from one of the following:').
 9263:                     '</p><ul>'.
 9264:                     '<li>'.&mt('The file was uploaded to the wrong course.').'</li>'.
 9265:                     '<li>'.&mt('The data is not in the format expected for the domain: [_1]',
 9266:                                '<i>'.$cdom.'</i>').'</li>'.
 9267:                     '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
 9268:                     '<li>'.&mt('The course roster is not up to date.').'</li>'.
 9269:                     '</ul>';
 9270:             }
 9271:         }
 9272:     } else {
 9273:         $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
 9274:     }
 9275:     return $output;
 9276: }
 9277: 
 9278: sub valid_file {
 9279:     my ($requested_file)=@_;
 9280:     foreach my $filename (sort(&scantron_filenames())) {
 9281: 	if ($requested_file eq $filename) { return 1; }
 9282:     }
 9283:     return 0;
 9284: }
 9285: 
 9286: sub scantron_download_scantron_data {
 9287:     my ($r)=@_;
 9288:     my ($symb) = &get_symb($r,1);
 9289:     my $default_form_data=&defaultFormData($symb);
 9290:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 9291:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 9292:     my $file=$env{'form.scantron_selectfile'};
 9293:     if (! &valid_file($file)) {
 9294: 	$r->print('
 9295: 	<p>
 9296: 	    '.&mt('The requested filename was invalid.').'
 9297:         </p>
 9298: ');
 9299: 	$r->print(&show_grading_menu_form($symb));
 9300: 	return;
 9301:     }
 9302:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
 9303:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
 9304:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
 9305:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
 9306:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
 9307:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
 9308:     $r->print('
 9309:     <p>
 9310: 	'.&mt('[_1]Original[_2] file as uploaded by bubblesheet scanning office.',
 9311: 	      '<a href="'.$orig.'">','</a>').'
 9312:     </p>
 9313:     <p>
 9314: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
 9315: 	      '<a href="'.$corrected.'">','</a>').'
 9316:     </p>
 9317:     <p>
 9318: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
 9319: 	      '<a href="'.$skipped.'">','</a>').'
 9320:     </p>
 9321: ');
 9322:     $r->print(&show_grading_menu_form($symb));
 9323:     return '';
 9324: }
 9325: 
 9326: sub checkscantron_results {
 9327:     my ($r) = @_;
 9328:     my ($symb)=&get_symb($r);
 9329:     if (!$symb) {return '';}
 9330:     my $grading_menu_button=&show_grading_menu_form($symb);
 9331:     my $cid = $env{'request.course.id'};
 9332:     my %lettdig = &Apache::lonnet::letter_to_digits();
 9333:     my $numletts = scalar(keys(%lettdig));
 9334:     my $cnum = $env{'course.'.$cid.'.num'};
 9335:     my $cdom = $env{'course.'.$cid.'.domain'};
 9336:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
 9337:     my %record;
 9338:     my %scantron_config =
 9339:         &Apache::lonnet::get_scantron_config($env{'form.scantron_format'});
 9340:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 9341:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
 9342:     my $classlist=&Apache::loncoursedata::get_classlist();
 9343:     my %idmap=&Apache::grades::username_to_idmap($classlist);
 9344:     my $navmap=Apache::lonnavmaps::navmap->new();
 9345:     unless (ref($navmap)) {
 9346:         $r->print(&navmap_errormsg());
 9347:         return '';
 9348:     }
 9349:     my $map=$navmap->getResourceByUrl($sequence);
 9350:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 9351:         %grader_randomlists_by_symb,%orderedforcode);
 9352:     if (ref($map)) {
 9353:         $randomorder=$map->randomorder();
 9354:         $randompick=$map->randompick();
 9355:     }
 9356:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 9357:     my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 9358:     if ($nav_error) {
 9359:         $r->print(&navmap_errormsg());
 9360:         return '';
 9361:     }
 9362:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 9363:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 9364:     my ($uname,$udom);
 9365:     my (%scandata,%lastname,%bylast);
 9366:     $r->print('
 9367: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
 9368: 
 9369:     my @delayqueue;
 9370:     my %completedstudents;
 9371: 
 9372:     my $count=&get_todo_count($scanlines,$scan_data);
 9373:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 9374:     my ($username,$domain,$started);
 9375:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 9376:     if ($nav_error) {
 9377:         $r->print(&navmap_errormsg());
 9378:         return '';
 9379:     }
 9380: 
 9381:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 9382:                                           'Processing first student');
 9383:     my $start=&Time::HiRes::time();
 9384:     my $i=-1;
 9385: 
 9386:     while ($i<$scanlines->{'count'}) {
 9387:         ($username,$domain,$uname)=('','','');
 9388:         $i++;
 9389:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
 9390:         if ($line=~/^[\s\cz]*$/) { next; }
 9391:         if ($started) {
 9392:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 9393:                                                      'last student');
 9394:         }
 9395:         $started=1;
 9396:         my $scan_record=
 9397:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
 9398:                                                      $scan_data);
 9399:         unless ($uname=&scantron_find_student($scan_record,$scan_data,
 9400:                                               \%idmap,$i)) {
 9401:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 9402:                                 'Unable to find a student that matches',1);
 9403:             next;
 9404:         }
 9405:         if (exists $completedstudents{$uname}) {
 9406:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 9407:                                 'Student '.$uname.' has multiple sheets',2);
 9408:             next;
 9409:         }
 9410:         my $pid = $scan_record->{'scantron.ID'};
 9411:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
 9412:         push(@{$bylast{$lastname{$pid}}},$pid);
 9413:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 9414:         my $user = $uname.':'.$usec;
 9415:         ($username,$domain)=split(/:/,$uname);
 9416: 
 9417:         my $scancode;
 9418:         if ((exists($scan_record->{'scantron.CODE'})) &&
 9419:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 9420:             $scancode = $scan_record->{'scantron.CODE'};
 9421:         } else {
 9422:             $scancode = '';
 9423:         }
 9424: 
 9425:         my @mapresources = @resources;
 9426:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 9427:         my %respnumlookup=();
 9428:         my %startline=();
 9429:         if ($randomorder || $randompick) {
 9430:             @mapresources =
 9431:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 9432:                              \%orderedforcode);
 9433:             my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
 9434:                                              $scan_record,\@master_seq,\%symb_to_resource,
 9435:                                              \%grader_partids_by_symb,\%orderedforcode,
 9436:                                              \%respnumlookup,\%startline);
 9437:             if ($randompick && $total) {
 9438:                 $lastpos = $total*$scantron_config{'Qlength'};
 9439:             }
 9440:         }
 9441:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 9442:         chomp($scandata{$pid});
 9443:         $scandata{$pid} =~ s/\r$//;
 9444: 
 9445:         my $counter = -1;
 9446:         foreach my $resource (@mapresources) {
 9447:             my $parts;
 9448:             my $ressymb = $resource->symb();
 9449:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 9450:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 9451:                 my $currcode;
 9452:                 if (exists($grader_randomlists_by_symb{$ressymb})) {
 9453:                     $currcode = $scancode;
 9454:                 }
 9455:                 (my $analysis,$parts) =
 9456:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 9457:                                               $username,$domain,undef,
 9458:                                               $bubbles_per_row,$currcode);
 9459:             } else {
 9460:                 $parts = $grader_partids_by_symb{$ressymb};
 9461:             }
 9462:             ($counter,my $recording) =
 9463:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
 9464:                                          $scandata{$pid},$parts,
 9465:                                          \%scantron_config,\%lettdig,$numletts,
 9466:                                          $randomorder,$randompick,
 9467:                                          \%respnumlookup,\%startline);
 9468:             $record{$pid} .= $recording;
 9469:         }
 9470:     }
 9471:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 9472:     $r->print('<br />');
 9473:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
 9474:     $passed = 0;
 9475:     $failed = 0;
 9476:     $numstudents = 0;
 9477:     foreach my $last (sort(keys(%bylast))) {
 9478:         if (ref($bylast{$last}) eq 'ARRAY') {
 9479:             foreach my $pid (sort(@{$bylast{$last}})) {
 9480:                 my $showscandata = $scandata{$pid};
 9481:                 my $showrecord = $record{$pid};
 9482:                 $showscandata =~ s/\s/&nbsp;/g;
 9483:                 $showrecord =~ s/\s/&nbsp;/g;
 9484:                 if ($scandata{$pid} eq $record{$pid}) {
 9485:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
 9486:                     $okstudents .= '<tr class="'.$css_class.'">'.
 9487: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 9488: '</tr>'."\n".
 9489: '<tr class="'.$css_class.'">'."\n".
 9490: '<td>'.&mt('Submissions').'</td><td>'.$showrecord.'</td></tr>'."\n";
 9491:                     $passed ++;
 9492:                 } else {
 9493:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
 9494:                     $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".
 9495: '</tr>'."\n".
 9496: '<tr class="'.$css_class.'">'."\n".
 9497: '<td>'.&mt('Submissions').'</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 9498: '</tr>'."\n";
 9499:                     $failed ++;
 9500:                 }
 9501:                 $numstudents ++;
 9502:             }
 9503:         }
 9504:     }
 9505:     $r->print('<p>'.
 9506:               &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).',
 9507:                   '<b>',
 9508:                   $numstudents,
 9509:                   '</b>',
 9510:                   $env{'form.scantron_maxbubble'}).
 9511:               '</p>'
 9512:     );
 9513:     $r->print('<p>'
 9514:              .&mt('Exact matches for [_1][quant,_2,student][_3].','<b>',$passed,'</b>')
 9515:              .'<br />'
 9516:              .&mt('Discrepancies detected for [_1][quant,_2,student][_3].','<b>',$failed,'</b>')
 9517:              .'</p>');
 9518:     if ($passed) {
 9519:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
 9520:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9521:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9522:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9523:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9524:                  $okstudents."\n".
 9525:                  &Apache::loncommon::end_data_table().'<br />');
 9526:     }
 9527:     if ($failed) {
 9528:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
 9529:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9530:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9531:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9532:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9533:                  $badstudents."\n".
 9534:                  &Apache::loncommon::end_data_table()).'<br />'.
 9535:                  &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.');  
 9536:     }
 9537:     $r->print('</form><br />'.$grading_menu_button);
 9538:     return;
 9539: }
 9540: 
 9541: sub verify_scantron_grading {
 9542:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
 9543:         $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
 9544:         $respnumlookup,$startline) = @_;
 9545:     my ($record,%expected,%startpos);
 9546:     return ($counter,$record) if (!ref($resource));
 9547:     return ($counter,$record) if (!$resource->is_problem());
 9548:     my $symb = $resource->symb();
 9549:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
 9550:     foreach my $part_id (@{$partids}) {
 9551:         $counter ++;
 9552:         $expected{$part_id} = 0;
 9553:         my $respnum = $counter;
 9554:         if ($randomorder || $randompick) {
 9555:             $respnum = $respnumlookup->{$counter};
 9556:             $startpos{$part_id} = $startline->{$counter} + 1;
 9557:         } else {
 9558:             $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
 9559:         }
 9560:         if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
 9561:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
 9562:             foreach my $item (@sub_lines) {
 9563:                 $expected{$part_id} += $item;
 9564:             }
 9565:         } else {
 9566:             $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
 9567:         }
 9568:     }
 9569:     if ($symb) {
 9570:         my %recorded;
 9571:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
 9572:         if ($returnhash{'version'}) {
 9573:             my %lasthash=();
 9574:             my $version;
 9575:             for ($version=1;$version<=$returnhash{'version'};$version++) {
 9576:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
 9577:                     $lasthash{$key}=$returnhash{$version.':'.$key};
 9578:                 }
 9579:             }
 9580:             foreach my $key (keys(%lasthash)) {
 9581:                 if ($key =~ /\.scantron$/) {
 9582:                     my $value = &unescape($lasthash{$key});
 9583:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
 9584:                     if ($value eq '') {
 9585:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
 9586:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
 9587:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9588:                             }
 9589:                         }
 9590:                     } else {
 9591:                         my @tocheck;
 9592:                         my @items = split(//,$value);
 9593:                         if (($scantron_config->{'Qon'} eq 'letter') ||
 9594:                             ($scantron_config->{'Qon'} eq 'number')) {
 9595:                             if (@items < $expected{$part_id}) {
 9596:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
 9597:                                 my @singles = split(//,$fragment);
 9598:                                 foreach my $pos (@singles) {
 9599:                                     if ($pos eq ' ') {
 9600:                                         push(@tocheck,$pos);
 9601:                                     } else {
 9602:                                         my $next = shift(@items);
 9603:                                         push(@tocheck,$next);
 9604:                                     }
 9605:                                 }
 9606:                             } else {
 9607:                                 @tocheck = @items;
 9608:                             }
 9609:                             foreach my $letter (@tocheck) {
 9610:                                 if ($scantron_config->{'Qon'} eq 'letter') {
 9611:                                     if ($letter !~ /^[A-J]$/) {
 9612:                                         $letter = $scantron_config->{'Qoff'};
 9613:                                     }
 9614:                                     $recorded{$part_id} .= $letter;
 9615:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
 9616:                                     my $digit;
 9617:                                     if ($letter !~ /^[A-J]$/) {
 9618:                                         $digit = $scantron_config->{'Qoff'};
 9619:                                     } else {
 9620:                                         $digit = $lettdig->{$letter};
 9621:                                     }
 9622:                                     $recorded{$part_id} .= $digit;
 9623:                                 }
 9624:                             }
 9625:                         } else {
 9626:                             @tocheck = @items;
 9627:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
 9628:                                 my $curr_sub = shift(@tocheck);
 9629:                                 my $digit;
 9630:                                 if ($curr_sub =~ /^[A-J]$/) {
 9631:                                     $digit = $lettdig->{$curr_sub}-1;
 9632:                                 }
 9633:                                 if ($curr_sub eq 'J') {
 9634:                                     $digit += scalar($numletts);
 9635:                                 }
 9636:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9637:                                     if ($j == $digit) {
 9638:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
 9639:                                     } else {
 9640:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9641:                                     }
 9642:                                 }
 9643:                             }
 9644:                         }
 9645:                     }
 9646:                 }
 9647:             }
 9648:         }
 9649:         foreach my $part_id (@{$partids}) {
 9650:             if ($recorded{$part_id} eq '') {
 9651:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
 9652:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9653:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9654:                     }
 9655:                 }
 9656:             }
 9657:             $record .= $recorded{$part_id};
 9658:         }
 9659:     }
 9660:     return ($counter,$record);
 9661: }
 9662: 
 9663: #-------- end of section for handling grading scantron forms -------
 9664: #
 9665: #-------------------------------------------------------------------
 9666: 
 9667: #-------------------------- Menu interface -------------------------
 9668: #
 9669: #--- Show a Grading Menu button - Calls the next routine ---
 9670: sub show_grading_menu_form {
 9671:     my ($symb)=@_;
 9672:     my $result.='<br /><form action="/adm/grades" method="post">'."\n".
 9673: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9674: 	'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 9675: 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
 9676: 	'<input type="submit" name="submit" value="'.&mt('Grading Menu').'" />'."\n".
 9677: 	'</form>'."\n";
 9678:     return $result;
 9679: }
 9680: 
 9681: # -- Retrieve choices for grading form
 9682: sub savedState {
 9683:     my %savedState = ();
 9684:     if ($env{'form.saveState'}) {
 9685: 	foreach (split(/:/,$env{'form.saveState'})) {
 9686: 	    my ($key,$value) = split(/=/,$_,2);
 9687: 	    $savedState{$key} = $value;
 9688: 	}
 9689:     }
 9690:     return \%savedState;
 9691: }
 9692: 
 9693: #--- Href with symb and command ---
 9694: 
 9695: sub href_symb_cmd {
 9696:     my ($symb,$cmd)=@_;
 9697:     return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
 9698: }
 9699: 
 9700: sub grading_menu {
 9701:     my ($request) = @_;
 9702:     my ($symb)=&get_symb($request);
 9703:     if (!$symb) {return '';}
 9704:     my $probTitle = &Apache::lonnet::gettitle($symb);
 9705:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 9706: 
 9707:     $request->print($table);
 9708:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
 9709:                   'handgrade'=>$hdgrade,
 9710:                   'probTitle'=>$probTitle,
 9711:                   'command'=>'submit_options',
 9712:                   'saveState'=>"",
 9713:                   'gradingMenu'=>1,
 9714:                   'showgrading'=>"yes");
 9715:     
 9716:     my $url1 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9717:     
 9718:     $fields{'command'} = 'csvform';
 9719:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9720:     
 9721:     $fields{'command'} = 'processclicker';
 9722:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9723:     
 9724:     $fields{'command'} = 'scantron_selectphase';
 9725:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9726:     
 9727:     my @menu = ({	categorytitle=>'Course Grading',
 9728:             items =>[
 9729:                         {	linktext => 'Manual Grading/View Submissions',
 9730:                     		url => $url1,
 9731:                     		permission => 'F',
 9732:                     		icon => 'edit-find-replace.png',
 9733:                     		linktitle => 'Start the process of hand grading submissions.'
 9734:                         },
 9735:                 	    {	linktext => 'Upload Scores',
 9736:                     		url => $url2,
 9737:                     		permission => 'F',
 9738:                     		icon => 'uploadscores.png',
 9739:                     		linktitle => 'Specify a file containing the class scores for current resource.'
 9740:                 	    },
 9741:                 	    {	linktext => 'Process Clicker',
 9742:                     		url => $url3,
 9743:                     		permission => 'F',
 9744:                     		icon => 'addClickerInfoFile.png',
 9745:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
 9746:                 	    },
 9747:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
 9748:                     		url => $url4,
 9749:                     		permission => 'F',
 9750:                     		icon => 'stat.png',
 9751:                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
 9752:                 	    }
 9753:                     ]
 9754:             });
 9755: 
 9756:     #$fields{'command'} = 'verify';
 9757:     #$url = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9758:     #
 9759:     # Create the menu
 9760:     my $Str;
 9761:     # $Str .= '<h2>'.&mt('Please select a grading task').'</h2>';
 9762:     $Str .= '<form method="post" action="" name="gradingMenu">';
 9763:     $Str .= '<input type="hidden" name="command" value="" />'.
 9764:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9765: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 9766: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 9767: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 9768: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 9769: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 9770: 
 9771:     $Str .= Apache::lonhtmlcommon::generate_menu(@menu);
 9772:     #$menudata->{'jscript'}
 9773:     $Str .='<hr /><input type="button" value="'.&mt('Verify Receipt No.').'" '.
 9774:         ' onclick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.
 9775:         ' /> '.
 9776:         &Apache::lonnet::recprefix($env{'request.course.id'}).
 9777:         '-<input type="text" name="receipt" size="4" onchange="javascript:checkReceiptNo(this.form,\'OK\')" />';
 9778: 
 9779:     $Str .="</form>\n";
 9780:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box.");
 9781:     $request->print(<<GRADINGMENUJS);
 9782: <script type="text/javascript" language="javascript">
 9783:     function checkChoice(formname,val,cmdx) {
 9784: 	if (val <= 2) {
 9785: 	    var cmd = radioSelection(formname.radioChoice);
 9786: 	    var cmdsave = cmd;
 9787: 	} else {
 9788: 	    cmd = cmdx;
 9789: 	    cmdsave = 'submission';
 9790: 	}
 9791: 	formname.command.value = cmd;
 9792: 	if (val < 5) formname.submit();
 9793: 	if (val == 5) {
 9794: 	    if (!checkReceiptNo(formname,'notOK')) { 
 9795: 	        return false;
 9796: 	    } else {
 9797: 	        formname.submit();
 9798: 	    }
 9799: 	}
 9800:     }
 9801: 
 9802:     function checkReceiptNo(formname,nospace) {
 9803: 	var receiptNo = formname.receipt.value;
 9804: 	var checkOpt = false;
 9805: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 9806: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 9807: 	if (checkOpt) {
 9808: 	    alert("$receiptalert");
 9809: 	    formname.receipt.value = "";
 9810: 	    formname.receipt.focus();
 9811: 	    return false;
 9812: 	}
 9813: 	return true;
 9814:     }
 9815: </script>
 9816: GRADINGMENUJS
 9817:     &commonJSfunctions($request);
 9818:     return $Str;    
 9819: }
 9820: 
 9821: 
 9822: #--- Displays the submissions first page -------
 9823: sub submit_options {
 9824:     my ($request) = @_;
 9825:     my ($symb)=&get_symb($request);
 9826:     if (!$symb) {return '';}
 9827:     my $probTitle = &Apache::lonnet::gettitle($symb);
 9828: 
 9829:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); 
 9830:     $request->print(<<GRADINGMENUJS);
 9831: <script type="text/javascript" language="javascript">
 9832:     function checkChoice(formname,val,cmdx) {
 9833: 	if (val <= 2) {
 9834: 	    var cmd = radioSelection(formname.radioChoice);
 9835: 	    var cmdsave = cmd;
 9836: 	} else {
 9837: 	    cmd = cmdx;
 9838: 	    cmdsave = 'submission';
 9839: 	}
 9840: 	formname.command.value = cmd;
 9841: 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
 9842: 	    ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
 9843: 	if (val < 5) formname.submit();
 9844: 	if (val == 5) {
 9845: 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
 9846: 	    formname.submit();
 9847: 	}
 9848: 	if (val < 7) formname.submit();
 9849:     }
 9850: 
 9851:     function checkReceiptNo(formname,nospace) {
 9852: 	var receiptNo = formname.receipt.value;
 9853: 	var checkOpt = false;
 9854: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 9855: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 9856: 	if (checkOpt) {
 9857: 	    alert("$receiptalert");
 9858: 	    formname.receipt.value = "";
 9859: 	    formname.receipt.focus();
 9860: 	    return false;
 9861: 	}
 9862: 	return true;
 9863:     }
 9864: </script>
 9865: GRADINGMENUJS
 9866:     &commonJSfunctions($request);
 9867:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 9868:     my $result;
 9869:     my (undef,$sections) = &getclasslist('all','0');
 9870:     my $savedState = &savedState();
 9871:     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
 9872:     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
 9873:     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
 9874:     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
 9875: 
 9876:     # Preselect sections
 9877:     my $selsec="";
 9878:     if (ref($sections)) {
 9879:         foreach my $section (sort(@$sections)) {
 9880:             $selsec.='<option value="'.$section.'" '.
 9881:                 ($saveSec eq $section ? 'selected="selected"':'').'>'.$section.'</option>'."\n";
 9882:         }
 9883:     }
 9884: 
 9885:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9886: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9887: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 9888: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 9889: 	'<input type="hidden" name="command"     value="" />'."\n".
 9890: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 9891: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 9892: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 9893: 
 9894:     $result.='
 9895: <h2>
 9896:   '.&mt('Grade Current Resource').'
 9897: </h2>
 9898: <div>
 9899:   '.$table.'
 9900: </div>
 9901: 
 9902: <div class="LC_columnSection">
 9903:   
 9904:     <fieldset>
 9905:       <legend>
 9906:        '.&mt('Sections').'
 9907:       </legend>
 9908:       <select name="section" multiple="multiple" size="5">'."\n";
 9909:     $result.= $selsec;
 9910:     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="selected"' : ''). '>all</option></select> &nbsp; ';
 9911:     $result.='
 9912:     </fieldset>
 9913:   
 9914:     <fieldset>
 9915:       <legend>
 9916:         '.&mt('Groups').'
 9917:       </legend>
 9918:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
 9919:     </fieldset>
 9920:   
 9921:     <fieldset>
 9922:       <legend>
 9923:         '.&mt('Access Status').'
 9924:       </legend>
 9925:       '.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,5,undef,'mult').'
 9926:     </fieldset>
 9927:   
 9928:     <fieldset>
 9929:       <legend>
 9930:         '.&mt('Submission Status').'
 9931:       </legend>
 9932:       <select name="submitonly" size="5">
 9933: 	         <option value="yes" '.      ($saveSub eq 'yes'       ? 'selected="selected"' : '').'>'.&mt('with submissions').'</option>
 9934: 	         <option value="queued" '.   ($saveSub eq 'queued'    ? 'selected="selected"' : '').'>'.&mt('in grading queue').'</option>
 9935: 	         <option value="graded" '.   ($saveSub eq 'graded'    ? 'selected="selected"' : '').'>'.&mt('with ungraded submissions').'</option>
 9936: 	         <option value="incorrect" '.($saveSub eq 'incorrect' ? 'selected="selected"' : '').'>'.&mt('with incorrect submissions').'</option>
 9937:                  <option value="all" '.      ($saveSub eq 'all'       ? 'selected="selected"' : '').'>'.&mt('with any status').'</option>
 9938:       </select>
 9939:     </fieldset>
 9940:   
 9941: </div>
 9942: 
 9943: <br />
 9944:           <div>
 9945:             <div>
 9946:               <label>
 9947:                 <input type="radio" name="radioChoice" value="submission" '.
 9948:                   ($saveCmd eq 'submission' ? 'checked="checked"' : '').' /> '.
 9949:              &mt('Select individual students to grade and view submissions.').'
 9950: 	      </label> 
 9951:             </div>
 9952:             <div>
 9953: 	      <label>
 9954:                 <input type="radio" name="radioChoice" value="viewgrades" '.
 9955:                   ($saveCmd eq 'viewgrades' ? 'checked="checked"' : '').' /> '.
 9956:                     &mt('Grade all selected students in a grading table.').'
 9957:               </label>
 9958:             </div>
 9959:             <div>
 9960: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 9961:             </div>
 9962:           </div>
 9963: 
 9964: 
 9965:         <h2>
 9966:          '.&mt('Grade Complete Folder for One Student').'
 9967:         </h2>
 9968:         <div>
 9969:             <div>
 9970:               <label>
 9971:                 <input type="radio" name="radioChoice" value="pickStudentPage" '.
 9972: 	  ($saveCmd eq 'pickStudentPage' ? 'checked="checked"' : '').' /> '.
 9973:   &mt('The <b>complete</b> page/sequence/folder: For one student').'
 9974:               </label>
 9975:             </div>
 9976:             <div>
 9977: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 9978:             </div>
 9979:         </div>
 9980:   </form>';
 9981:     $result .= &show_grading_menu_form($symb);
 9982:     return $result;
 9983: }
 9984: 
 9985: sub substatus_options {
 9986:     return &Apache::lonlocal::texthash(
 9987:                                       'yes'       => 'with submissions',
 9988:                                       'queued'    => 'in grading queue',
 9989:                                       'graded'    => 'with ungraded submissions',
 9990:                                       'incorrect' => 'with incorrect submissions',
 9991:                                       'all'       => 'with any status',
 9992:                                       );
 9993: }
 9994: 
 9995: sub reset_perm {
 9996:     undef(%perm);
 9997: }
 9998: 
 9999: sub init_perm {
10000:     &reset_perm();
10001:     foreach my $test_perm ('vgr','mgr','opa') {
10002: 
10003: 	my $scope = $env{'request.course.id'};
10004: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
10005: 
10006: 	    $scope .= '/'.$env{'request.course.sec'};
10007: 	    if ( $perm{$test_perm}=
10008: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
10009: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
10010: 	    } else {
10011: 		delete($perm{$test_perm});
10012: 	    }
10013: 	}
10014:     }
10015: }
10016: 
10017: sub init_old_essays {
10018:     my ($symb,$apath,$adom,$aname) = @_;
10019:     if ($symb ne '') {
10020:         my %essays = &Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
10021:         if (keys(%essays) > 0) {
10022:             $old_essays{$symb} = \%essays;
10023:         }
10024:     }
10025:     return;
10026: }
10027: 
10028: sub reset_old_essays {
10029:     undef(%old_essays);
10030: }
10031: 
10032: sub gather_clicker_ids {
10033:     my %clicker_ids;
10034: 
10035:     my $classlist = &Apache::loncoursedata::get_classlist();
10036: 
10037:     # Set up a couple variables.
10038:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
10039:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
10040:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
10041: 
10042:     foreach my $student (keys(%$classlist)) {
10043:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
10044:         my $username = $classlist->{$student}->[$username_idx];
10045:         my $domain   = $classlist->{$student}->[$domain_idx];
10046:         my $clickers =
10047: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
10048:         foreach my $id (split(/\,/,$clickers)) {
10049:             $id=~s/^[\#0]+//;
10050:             $id=~s/[\-\:]//g;
10051:             if (exists($clicker_ids{$id})) {
10052: 		$clicker_ids{$id}.=','.$username.':'.$domain;
10053:             } else {
10054: 		$clicker_ids{$id}=$username.':'.$domain;
10055:             }
10056:         }
10057:     }
10058:     return %clicker_ids;
10059: }
10060: 
10061: sub gather_adv_clicker_ids {
10062:     my %clicker_ids;
10063:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
10064:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
10065:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
10066:     foreach my $element (sort(keys(%coursepersonnel))) {
10067:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
10068:             my ($puname,$pudom)=split(/\:/,$person);
10069:             my $clickers =
10070: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
10071:             foreach my $id (split(/\,/,$clickers)) {
10072: 		$id=~s/^[\#0]+//;
10073:                 $id=~s/[\-\:]//g;
10074: 		if (exists($clicker_ids{$id})) {
10075: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
10076: 		} else {
10077: 		    $clicker_ids{$id}=$puname.':'.$pudom;
10078: 		}
10079:             }
10080:         }
10081:     }
10082:     return %clicker_ids;
10083: }
10084: 
10085: sub clicker_grading_parameters {
10086:     return ('gradingmechanism' => 'scalar',
10087:             'upfiletype' => 'scalar',
10088:             'specificid' => 'scalar',
10089:             'pcorrect' => 'scalar',
10090:             'pincorrect' => 'scalar');
10091: }
10092: 
10093: sub process_clicker {
10094:     my ($r)=@_;
10095:     my ($symb)=&get_symb($r);
10096:     if (!$symb) {return '';}
10097:     my $result=&checkforfile_js();
10098:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
10099:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
10100:     $result.=$table;
10101:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
10102:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
10103:     $result.='&nbsp;<b>'.&mt('Specify a file containing the clicker information for this resource.').
10104:         '</b></td></tr>'."\n";
10105:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
10106: # Attempt to restore parameters from last session, set defaults if not present
10107:     my %Saveable_Parameters=&clicker_grading_parameters();
10108:     &Apache::loncommon::restore_course_settings('grades_clicker',
10109:                                                  \%Saveable_Parameters);
10110:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
10111:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
10112:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
10113:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
10114: 
10115:     my %checked;
10116:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
10117:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
10118:           $checked{$gradingmechanism}=' checked="checked"';
10119:        }
10120:     }
10121: 
10122:     my $upload=&mt("Upload File");
10123:     my $type=&mt("Type");
10124:     my $attendance=&mt("Award points just for participation");
10125:     my $personnel=&mt("Correctness determined from response by course personnel");
10126:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
10127:     my $given=&mt("Correctness determined from given list of answers").' '.
10128:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
10129:     my $pcorrect=&mt("Percentage points for correct solution");
10130:     my $pincorrect=&mt("Percentage points for incorrect solution");
10131:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
10132:                                                    {'iclicker' => 'i>clicker',
10133:                                                     'interwrite' => 'interwrite PRS',
10134:                                                     'turning' => 'Turning Technologies'});
10135:     $symb = &Apache::lonenc::check_encrypt($symb);
10136:     $result.=<<ENDUPFORM;
10137: <script type="text/javascript">
10138: function sanitycheck() {
10139: // Accept only integer percentages
10140:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
10141:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
10142: // Find out grading choice
10143:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
10144:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
10145:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
10146:       }
10147:    }
10148: // By default, new choice equals user selection
10149:    newgradingchoice=gradingchoice;
10150: // Not good to give more points for false answers than correct ones
10151:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
10152:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
10153:    }
10154: // If new choice is attendance only, and old choice was correctness-based, restore defaults
10155:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
10156:       document.forms.gradesupload.pcorrect.value=100;
10157:       document.forms.gradesupload.pincorrect.value=100;
10158:    }
10159: // If the values are different, cannot be attendance only
10160:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
10161:        (gradingchoice=='attendance')) {
10162:        newgradingchoice='personnel';
10163:    }
10164: // Change grading choice to new one
10165:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
10166:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
10167:          document.forms.gradesupload.gradingmechanism[i].checked=true;
10168:       } else {
10169:          document.forms.gradesupload.gradingmechanism[i].checked=false;
10170:       }
10171:    }
10172: // Remember the old state
10173:    document.forms.gradesupload.waschecked.value=newgradingchoice;
10174: }
10175: </script>
10176: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
10177: <input type="hidden" name="symb" value="$symb" />
10178: <input type="hidden" name="command" value="processclickerfile" />
10179: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
10180: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
10181: <input type="file" name="upfile" size="50" />
10182: <br /><label>$type: $selectform</label>
10183: <br /><label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
10184: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
10185: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
10186: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
10187: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
10188: <br />&nbsp;&nbsp;&nbsp;
10189: <input type="text" name="givenanswer" size="50" />
10190: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
10191: <br /><label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
10192: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
10193: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
10194: </form>
10195: ENDUPFORM
10196:     $result.='</td></tr></table>'."\n".
10197:              '</td></tr></table><br /><br />'."\n";
10198:     $result.=&show_grading_menu_form($symb);
10199:     return $result;
10200: }
10201: 
10202: sub process_clicker_file {
10203:     my ($r)=@_;
10204:     my ($symb)=&get_symb($r);
10205:     if (!$symb) {return '';}
10206: 
10207:     my %Saveable_Parameters=&clicker_grading_parameters();
10208:     &Apache::loncommon::store_course_settings('grades_clicker',
10209:                                               \%Saveable_Parameters);
10210: 
10211:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
10212:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
10213: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
10214: 	return $result.&show_grading_menu_form($symb);
10215:     }
10216:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
10217:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
10218:         return $result.&show_grading_menu_form($symb);
10219:     }
10220:     my $foundgiven=0;
10221:     if ($env{'form.gradingmechanism'} eq 'given') {
10222:         $env{'form.givenanswer'}=~s/^\s*//gs;
10223:         $env{'form.givenanswer'}=~s/\s*$//gs;
10224:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
10225:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
10226:         my @answers=split(/\,/,$env{'form.givenanswer'});
10227:         $foundgiven=$#answers+1;
10228:     }
10229:     my %clicker_ids=&gather_clicker_ids();
10230:     my %correct_ids;
10231:     if ($env{'form.gradingmechanism'} eq 'personnel') {
10232: 	%correct_ids=&gather_adv_clicker_ids();
10233:     }
10234:     if ($env{'form.gradingmechanism'} eq 'specific') {
10235: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
10236: 	   $correct_id=~tr/a-z/A-Z/;
10237: 	   $correct_id=~s/\s//gs;
10238: 	   $correct_id=~s/^[\#0]+//;
10239:            $correct_id=~s/[\-\:]//g;
10240:            if ($correct_id) {
10241: 	      $correct_ids{$correct_id}='specified';
10242:            }
10243:         }
10244:     }
10245:     if ($env{'form.gradingmechanism'} eq 'attendance') {
10246: 	$result.=&mt('Score based on attendance only');
10247:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
10248:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
10249:     } else {
10250: 	my $number=0;
10251: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
10252: 	foreach my $id (sort(keys(%correct_ids))) {
10253: 	    $result.='<br /><tt>'.$id.'</tt> - ';
10254: 	    if ($correct_ids{$id} eq 'specified') {
10255: 		$result.=&mt('specified');
10256: 	    } else {
10257: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
10258: 		$result.=&Apache::loncommon::plainname($uname,$udom);
10259: 	    }
10260: 	    $number++;
10261: 	}
10262:         $result.="</p>\n";
10263:         if ($number==0) {
10264:             $result .=
10265:                  &Apache::lonhtmlcommon::confirm_success(
10266:                      &mt('No IDs found to determine correct answer'),1);
10267:             return $result.&show_grading_menu_form($symb);
10268:         }
10269:     }
10270:     if (length($env{'form.upfile'}) < 2) {
10271:         $result .=
10272:             &Apache::lonhtmlcommon::confirm_success(
10273:                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
10274:                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1);
10275:         return $result.&show_grading_menu_form($symb);
10276:     }
10277:     my $mimetype;
10278:     if ($env{'form.upfiletype'} eq 'iclicker') {
10279:         my $mm = new File::MMagic;
10280:         $mimetype = $mm->checktype_contents($env{'form.upfile'});
10281:         unless (($mimetype eq 'text/plain') || ($mimetype eq 'text/html')) {
10282:             $result.= '<p>'.
10283:                 &Apache::lonhtmlcommon::confirm_success(
10284:                     &mt('File format is neither csv (iclicker 6) nor xml (iclicker 7)'),1).'</p>';
10285:             return $result.&show_grading_menu_form($symb);
10286:         }
10287:     } elsif (($env{'form.upfiletype'} ne 'interwrite') && ($env{'form.upfiletype'} ne 'turning')) {
10288:         $result .= '<p>'.
10289:             &Apache::lonhtmlcommon::confirm_success(
10290:                 &mt('Invalid clicker type: choose one of: i>clicker, Interwrite PRS, or Turning Technologies.'),1).'</p>';
10291:         return $result.&show_grading_menu_form($symb);
10292:     }
10293: 
10294: # Were able to get all the info needed, now analyze the file
10295: 
10296:     $result.=&Apache::loncommon::studentbrowser_javascript();
10297:     $symb = &Apache::lonenc::check_encrypt($symb);
10298:     my $heading=&mt('Scanning clicker file');
10299:     $result.=(<<ENDHEADER);
10300: <br /><table width="100%" border="0"><tr><td bgcolor="#777777">
10301: <table width="100%" border="0"><tr bgcolor="#e6ffff"><td>
10302: <b>$heading</b></td></tr><tr bgcolor="#ffffe6"><td>
10303: <form method="post" action="/adm/grades" name="clickeranalysis">
10304: <input type="hidden" name="symb" value="$symb" />
10305: <input type="hidden" name="command" value="assignclickergrades" />
10306: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
10307: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
10308: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
10309: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
10310: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
10311: ENDHEADER
10312:     if ($env{'form.gradingmechanism'} eq 'given') {
10313:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
10314:     } 
10315:     my %responses;
10316:     my @questiontitles;
10317:     my $errormsg='';
10318:     my $number=0;
10319:     if ($env{'form.upfiletype'} eq 'iclicker') {
10320:         if ($mimetype eq 'text/plain') {
10321:             ($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
10322:         } elsif ($mimetype eq 'text/html') {
10323:             ($errormsg,$number)=&iclickerxml_eval(\@questiontitles,\%responses);
10324:         }
10325:     } elsif ($env{'form.upfiletype'} eq 'interwrite') {
10326:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
10327:     } elsif ($env{'form.upfiletype'} eq 'turning') {
10328:         ($errormsg,$number)=&turning_eval(\@questiontitles,\%responses);
10329:     }
10330:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
10331:              '<input type="hidden" name="number" value="'.$number.'" />'.
10332:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
10333:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
10334:              '<br />';
10335:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
10336:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
10337:        return $result.&show_grading_menu_form($symb);
10338:     } 
10339: # Remember Question Titles
10340: # FIXME: Possibly need delimiter other than ":"
10341:     for (my $i=0;$i<$number;$i++) {
10342:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
10343:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
10344:     }
10345:     my $correct_count=0;
10346:     my $student_count=0;
10347:     my $unknown_count=0;
10348: # Match answers with usernames
10349: # FIXME: Possibly need delimiter other than ":"
10350:     foreach my $id (keys(%responses)) {
10351:        if ($correct_ids{$id}) {
10352:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
10353:           $correct_count++;
10354:        } elsif ($clicker_ids{$id}) {
10355:           if ($clicker_ids{$id}=~/\,/) {
10356: # More than one user with the same clicker!
10357:              $result.="\n<hr />".&mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
10358:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
10359:                            "<select name='multi".$id."'>";
10360:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
10361:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
10362:              }
10363:              $result.='</select>';
10364:              $unknown_count++;
10365:           } else {
10366: # Good: found one and only one user with the right clicker
10367:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
10368:              $student_count++;
10369:           }
10370:        } else {
10371:           $result.="\n<hr />".&mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
10372:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
10373:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
10374:                    "\n".&mt("Domain").": ".
10375:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
10376:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
10377:           $unknown_count++;
10378:        }
10379:     }
10380:     $result.='<hr />'.
10381:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
10382:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
10383:        if ($correct_count==0) {
10384:           $errormsg.="Found no correct answers for grading!";
10385:        } elsif ($correct_count>1) {
10386:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
10387:        }
10388:     }
10389:     if ($number<1) {
10390:        $errormsg.="Found no questions.";
10391:     }
10392:     if ($errormsg) {
10393:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
10394:     } else {
10395:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
10396:     }
10397:     $result.='</form></td></tr></table>'."\n".
10398:              '</td></tr></table><br /><br />'."\n";
10399:     return $result.&show_grading_menu_form($symb);
10400: }
10401: 
10402: sub iclicker_eval {
10403:     my ($questiontitles,$responses)=@_;
10404:     my $number=0;
10405:     my $errormsg='';
10406:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10407:         my %components=&Apache::loncommon::record_sep($line);
10408:         my @entries=map {$components{$_}} (sort(keys(%components)));
10409: 	if ($entries[0] eq 'Question') {
10410: 	    for (my $i=3;$i<$#entries;$i+=6) {
10411: 		$$questiontitles[$number]=$entries[$i];
10412: 		$number++;
10413: 	    }
10414: 	}
10415: 	if ($entries[0]=~/^\#/) {
10416: 	    my $id=$entries[0];
10417: 	    my @idresponses;
10418: 	    $id=~s/^[\#0]+//;
10419: 	    for (my $i=0;$i<$number;$i++) {
10420: 		my $idx=3+$i*6;
10421:                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
10422: 		push(@idresponses,$entries[$idx]);
10423: 	    }
10424: 	    $$responses{$id}=join(',',@idresponses);
10425: 	}
10426:     }
10427:     return ($errormsg,$number);
10428: }
10429: 
10430: sub iclickerxml_eval {
10431:     my ($questiontitles,$responses)=@_;
10432:     my $number=0;
10433:     my $errormsg='';
10434:     my @state;
10435:     my %respbyid;
10436:     my $p = HTML::Parser->new
10437:     (
10438:         xml_mode => 1,
10439:         start_h =>
10440:             [sub {
10441:                  my ($tagname,$attr) = @_;
10442:                  push(@state,$tagname);
10443:                  if ("@state" eq "ssn p") {
10444:                      my $title = $attr->{qn};
10445:                      $title =~ s/(^\s+|\s+$)//g;
10446:                      $questiontitles->[$number]=$title;
10447:                  } elsif ("@state" eq "ssn p v") {
10448:                      my $id = $attr->{id};
10449:                      my $entry = $attr->{ans};
10450:                      $id=~s/^[\#0]+//;
10451:                      $entry =~s/[^a-zA-Z0-9\.\*\-\+]+//g;
10452:                      $respbyid{$id}[$number] = $entry;
10453:                  }
10454:             }, "tagname, attr"],
10455:          end_h =>
10456:                [sub {
10457:                    my ($tagname) = @_;
10458:                    if ("@state" eq "ssn p") {
10459:                        $number++;
10460:                    }
10461:                    pop(@state);
10462:                 }, "tagname"],
10463:     );
10464: 
10465:     $p->parse($env{'form.upfile'});
10466:     $p->eof;
10467:     foreach my $id (keys(%respbyid)) {
10468:         $responses->{$id}=join(',',@{$respbyid{$id}});
10469:     }
10470:     return ($errormsg,$number);
10471: }
10472: 
10473: sub interwrite_eval {
10474:     my ($questiontitles,$responses)=@_;
10475:     my $number=0;
10476:     my $errormsg='';
10477:     my $skipline=1;
10478:     my $questionnumber=0;
10479:     my %idresponses=();
10480:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10481:         my %components=&Apache::loncommon::record_sep($line);
10482:         my @entries=map {$components{$_}} (sort(keys(%components)));
10483:         if ($entries[1] eq 'Time') { $skipline=0; next; }
10484:         if ($entries[1] eq 'Response') { $skipline=1; }
10485:         next if $skipline;
10486:         if ($entries[0]!=$questionnumber) {
10487:            $questionnumber=$entries[0];
10488:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
10489:            $number++;
10490:         }
10491:         my $id=$entries[4];
10492:         $id=~s/^[\#0]+//;
10493:         $id=~s/^v\d*\://i;
10494:         $id=~s/[\-\:]//g;
10495:         $idresponses{$id}[$number]=$entries[6];
10496:     }
10497:     foreach my $id (keys(%idresponses)) {
10498:        $$responses{$id}=join(',',@{$idresponses{$id}});
10499:        $$responses{$id}=~s/^\s*\,//;
10500:     }
10501:     return ($errormsg,$number);
10502: }
10503: 
10504: sub turning_eval {
10505:     my ($questiontitles,$responses)=@_;
10506:     my $number=0;
10507:     my $errormsg='';
10508:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10509:         my %components=&Apache::loncommon::record_sep($line);
10510:         my @entries=map {$components{$_}} (sort(keys(%components)));
10511:         if ($#entries>$number) { $number=$#entries; }
10512:         my $id=$entries[0];
10513:         my @idresponses;
10514:         $id=~s/^[\#0]+//;
10515:         unless ($id) { next; }
10516:         for (my $idx=1;$idx<=$#entries;$idx++) {
10517:             $entries[$idx]=~s/\,/\;/g;
10518:             $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+\;]+//g;
10519:             push(@idresponses,$entries[$idx]);
10520:         }
10521:         $$responses{$id}=join(',',@idresponses);
10522:     }
10523:     for (my $i=1; $i<=$number; $i++) {
10524:         $$questiontitles[$i]=&mt('Question [_1]',$i);
10525:     }
10526:     return ($errormsg,$number);
10527: }
10528: 
10529: sub assign_clicker_grades {
10530:     my ($r)=@_;
10531:     my ($symb)=&get_symb($r);
10532:     if (!$symb) {return '';}
10533: # See which part we are saving to
10534:     my $res_error;
10535:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
10536:     if ($res_error) {
10537:         return &navmap_errormsg();
10538:     }
10539: # FIXME: This should probably look for the first handgradeable part
10540:     my $part=$$partlist[0];
10541: # Start screen output
10542:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
10543: 
10544:     $result .= '<br />'.
10545:                &Apache::loncommon::start_data_table().
10546:                &Apache::loncommon::start_data_table_header_row().
10547:                '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
10548:                &Apache::loncommon::end_data_table_header_row().
10549:                &Apache::loncommon::start_data_table_row().'<td>';
10550: 
10551: # Get correct result
10552: # FIXME: Possibly need delimiter other than ":"
10553:     my @correct=();
10554:     my $gradingmechanism=$env{'form.gradingmechanism'};
10555:     my $number=$env{'form.number'};
10556:     if ($gradingmechanism ne 'attendance') {
10557:        foreach my $key (keys(%env)) {
10558:           if ($key=~/^form\.correct\:/) {
10559:              my @input=split(/\,/,$env{$key});
10560:              for (my $i=0;$i<=$#input;$i++) {
10561:                  if (($correct[$i]) && ($input[$i]) &&
10562:                      ($correct[$i] ne $input[$i])) {
10563:                     $result.='<br /><span class="LC_warning">'.
10564:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
10565:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
10566:                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
10567:                     $correct[$i]=$input[$i];
10568:                  }
10569:              }
10570:           }
10571:        }
10572:        for (my $i=0;$i<$number;$i++) {
10573:           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
10574:              $result.='<br /><span class="LC_error">'.
10575:                       &mt('No correct result given for question "[_1]"!',
10576:                           $env{'form.question:'.$i}).'</span>';
10577:           }
10578:        }
10579:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
10580:     }
10581: # Start grading
10582:     my $pcorrect=$env{'form.pcorrect'};
10583:     my $pincorrect=$env{'form.pincorrect'};
10584:     my $storecount=0;
10585:     my %users=();
10586:     foreach my $key (keys(%env)) {
10587:        my $user='';
10588:        if ($key=~/^form\.student\:(.*)$/) {
10589:           $user=$1;
10590:        }
10591:        if ($key=~/^form\.unknown\:(.*)$/) {
10592:           my $id=$1;
10593:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
10594:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
10595:           } elsif ($env{'form.multi'.$id}) {
10596:              $user=$env{'form.multi'.$id};
10597:           }
10598:        }
10599:        if ($user) {
10600:           if ($users{$user}) {
10601:              $result.='<br /><span class="LC_warning">'.
10602:                       &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
10603:                       '</span><br />';
10604:           }
10605:           $users{$user}=1;
10606:           my @answer=split(/\,/,$env{$key});
10607:           my $sum=0;
10608:           my $realnumber=$number;
10609:           for (my $i=0;$i<$number;$i++) {
10610:              if  ($correct[$i] eq '-') {
10611:                 $realnumber--;
10612:              } elsif ($answer[$i]) {
10613:                 if ($gradingmechanism eq 'attendance') {
10614:                    $sum+=$pcorrect;
10615:                 } elsif ($correct[$i] eq '*') {
10616:                    $sum+=$pcorrect;
10617:                 } else {
10618: # We actually grade if correct or not
10619:                    my $increment=$pincorrect;
10620: # Special case: numerical answer "0"
10621:                    if ($correct[$i] eq '0') {
10622:                       if ($answer[$i]=~/^[0\.]+$/) {
10623:                          $increment=$pcorrect;
10624:                       }
10625: # General numerical answer, both evaluate to something non-zero
10626:                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
10627:                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
10628:                          $increment=$pcorrect;
10629:                       }
10630: # Must be just alphanumeric
10631:                    } elsif ($answer[$i] eq $correct[$i]) {
10632:                       $increment=$pcorrect;
10633:                    }
10634:                    $sum+=$increment;
10635:                 }
10636:              }
10637:           }
10638:           my $ave=$sum/(100*$realnumber);
10639: # Store
10640:           my ($username,$domain)=split(/\:/,$user);
10641:           my %grades=();
10642:           $grades{"resource.$part.solved"}='correct_by_override';
10643:           $grades{"resource.$part.awarded"}=$ave;
10644:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
10645:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
10646:                                                  $env{'request.course.id'},
10647:                                                  $domain,$username);
10648:           if ($returncode ne 'ok') {
10649:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
10650:           } else {
10651:              $storecount++;
10652:           }
10653:        }
10654:     }
10655: # We are done
10656:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
10657:              '</td>'.
10658:              &Apache::loncommon::end_data_table_row().
10659:              &Apache::loncommon::end_data_table()."<br /><br />\n";
10660:     return $result.&show_grading_menu_form($symb);
10661: }
10662: 
10663: sub navmap_errormsg {
10664:     return '<div class="LC_error">'.
10665:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
10666:            &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='.$env{'request.role'}.'">','</a>').
10667:            '</div>';
10668: }
10669: 
10670: sub startpage {
10671:     my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js,$onload) = @_;
10672:     my %args;
10673:     if ($onload) {
10674:          my %loaditems = (
10675:                         'onload' => $onload,
10676:                       );
10677:          $args{'add_entries'} = \%loaditems;
10678:     }
10679:     if ($nomenu) {
10680:         $args{'only_body'} = 1;
10681:         $r->print(&Apache::loncommon::start_page("Student's Version",$js,\%args));
10682:     } else {
10683:         $args{'bread_crumbs'} = $crumbs;
10684:         $r->print(&Apache::loncommon::start_page('Grading',$js,\%args));
10685:     }
10686:     unless ($nodisplayflag) {
10687:        $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp));
10688:     }
10689: }
10690: 
10691: sub handler {
10692:     my $request=$_[0];
10693:     &reset_caches();
10694:     if ($request->header_only) {
10695:         &Apache::loncommon::content_type($request,'text/html');
10696:         $request->send_http_header;
10697:         return OK;
10698:     }
10699:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
10700: 
10701:     my $symb=&get_symb($request,1);
10702:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
10703:     my $command=$commands[0];
10704: 
10705:     if ($#commands > 0) {
10706: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
10707:     }
10708: 
10709:     $ssi_error = 0;
10710:     my $brcrum = [{href=>"/adm/grades",text=>"Grading"}];
10711:     my $start_page = &Apache::loncommon::start_page('Grading',undef,
10712:                                                     {'bread_crumbs' => $brcrum});
10713:     if ($symb eq '' && $command eq '') {
10714: 	if ($env{'user.adv'}) {
10715:             &Apache::loncommon::content_type($request,'text/html');
10716:             $request->send_http_header;
10717:             $request->print($start_page);
10718: 	    if (($env{'form.codeone'}) && ($env{'form.codetwo'}) &&
10719: 		($env{'form.codethree'})) {
10720: 		my $token=$env{'form.codeone'}.'*'.$env{'form.codetwo'}.'*'.
10721: 		    $env{'form.codethree'};
10722: 		my ($tsymb,$tuname,$tudom,$tcrsid)=
10723: 		    &Apache::lonnet::checkin($token);
10724: 		if ($tsymb) {
10725: 		    my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
10726: 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
10727: 			$request->print(&ssi_with_retries('/res/'.$url, $ssi_retries,
10728: 					  ('grade_username' => $tuname,
10729: 					   'grade_domain' => $tudom,
10730: 					   'grade_courseid' => $tcrsid,
10731: 					   'grade_symb' => $tsymb)));
10732: 		    } else {
10733: 			$request->print('<h3>Not authorized: '.$token.'</h3>');
10734: 		    }
10735: 		} else {
10736: 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
10737: 		}
10738: 	    } else {
10739: 		$request->print(&Apache::lonxml::tokeninputfield());
10740: 	    }
10741:         } elsif ($env{'request.course.id'}) {
10742:             &init_perm(); 
10743:             if (!%perm) {
10744:                 $request->internal_redirect('/adm/quickgrades');
10745:                 return OK;
10746:             } else {
10747:                 &Apache::loncommon::content_type($request,'text/html');
10748:                 $request->send_http_header;
10749:                 $request->print($start_page);
10750:             }
10751:         }
10752:     } else {
10753:         &init_perm();
10754:         if (!$env{'request.course.id'}) {
10755:             unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
10756:                     ($command =~ /^scantronupload/)) {
10757:                 # Not in a course.
10758:                 $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
10759:                 return HTTP_NOT_ACCEPTABLE;
10760:             }
10761:         } elsif (!%perm) {
10762:             $request->internal_redirect('/adm/quickgrades');
10763:         }
10764:         &Apache::loncommon::content_type($request,'text/html');
10765:         $request->send_http_header;
10766:         if (($command eq 'scantron_selectphase' && $perm{'mgr'}) || 
10767:             (($command eq 'scantronupload') &&
10768:              (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
10769:               &Apache::lonnet::allowed('usc',$env{'request.course.id'})))) {
10770:             &startpage($request,$symb,[{href=>'/adm/grades', text=>"Grading"}],1,1,
10771:                        undef,undef,undef,undef,'toggleScantab(document.rules);');
10772:         } else {
10773:             unless ((($command eq 'submission' || $command eq 'versionsub')) && ($perm{'vgr'})) {
10774:                 $request->print($start_page); 
10775:             }
10776:         }
10777: 	if ($command eq 'submission' && $perm{'vgr'}) {
10778:             my ($stuvcurrent,$stuvdisp,$versionform,$js);
10779:             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
10780:                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
10781:                     &choose_task_version_form($symb,$env{'form.student'},
10782:                                               $env{'form.userdom'});
10783:             }
10784:             &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
10785:             if ($versionform) {
10786:                 $request->print($versionform);
10787:             }
10788:             $request->print('<br clear="all" />');
10789: 	    ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
10790:         } elsif ($command eq 'versionsub' && $perm{'vgr'}) {
10791:             my ($stuvcurrent,$stuvdisp,$versionform,$js) =
10792:                 &choose_task_version_form($symb,$env{'form.student'},
10793:                                           $env{'form.userdom'},
10794:                                           $env{'form.inhibitmenu'});
10795:             &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,$stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$js);
10796:             if ($versionform) {
10797:                 $request->print($versionform);
10798:             }
10799:             $request->print('<br clear="all" />');
10800:             $request->print(&show_previous_task_version($request,$symb));
10801: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
10802: 	    &pickStudentPage($request);
10803: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
10804: 	    &displayPage($request);
10805: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
10806: 	    &updateGradeByPage($request);
10807: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
10808: 	    &processGroup($request);
10809: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
10810: 	    $request->print(&grading_menu($request));
10811: 	} elsif ($command eq 'submit_options' && $perm{'vgr'}) {
10812: 	    $request->print(&submit_options($request));
10813: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
10814: 	    $request->print(&viewgrades($request));
10815: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
10816: 	    $request->print(&processHandGrade($request));
10817: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
10818: 	    $request->print(&editgrades($request));
10819: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
10820: 	    $request->print(&verifyreceipt($request));
10821:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
10822:             $request->print(&process_clicker($request));
10823:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
10824:             $request->print(&process_clicker_file($request));
10825:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
10826:             $request->print(&assign_clicker_grades($request));
10827: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
10828: 	    $request->print(&upcsvScores_form($request));
10829: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
10830: 	    $request->print(&csvupload($request));
10831: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
10832: 	    $request->print(&csvuploadmap($request));
10833: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
10834: 	    if ($env{'form.associate'} ne 'Reverse Association') {
10835: 		$request->print(&csvuploadoptions($request));
10836: 	    } else {
10837: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
10838: 		    $env{'form.upfile_associate'} = 'reverse';
10839: 		} else {
10840: 		    $env{'form.upfile_associate'} = 'forward';
10841: 		}
10842: 		$request->print(&csvuploadmap($request));
10843: 	    }
10844: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
10845: 	    $request->print(&csvuploadassign($request));
10846: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
10847: 	    $request->print(&scantron_selectphase($request));
10848:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
10849:  	    $request->print(&scantron_do_warning($request));
10850: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
10851: 	    $request->print(&scantron_validate_file($request));
10852: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
10853: 	    $request->print(&scantron_process_students($request));
10854:  	} elsif ($command eq 'scantronupload' && 
10855:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10856: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10857:  	    $request->print(&scantron_upload_scantron_data($request)); 
10858:  	} elsif ($command eq 'scantronupload_save' &&
10859:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10860: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10861:  	    $request->print(&scantron_upload_scantron_data_save($request));
10862:  	} elsif ($command eq 'scantron_download' &&
10863: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
10864:  	    $request->print(&scantron_download_scantron_data($request));
10865:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
10866:             $request->print(&checkscantron_results($request));     
10867: 	} elsif ($command) {
10868: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
10869: 	}
10870:     }
10871:     if ($ssi_error) {
10872: 	&ssi_print_error($request);
10873:     }
10874:     $request->print(&Apache::loncommon::end_page());
10875:     &reset_caches();
10876:     return OK;
10877: }
10878: 
10879: 1;
10880: 
10881: __END__;
10882: 
10883: 
10884: =head1 NAME
10885: 
10886: Apache::grades
10887: 
10888: =head1 SYNOPSIS
10889: 
10890: Handles the viewing of grades.
10891: 
10892: This is part of the LearningOnline Network with CAPA project
10893: described at http://www.lon-capa.org.
10894: 
10895: =head1 OVERVIEW
10896: 
10897: Do an ssi with retries:
10898: While I'd love to factor out this with the vesrion in lonprintout,
10899: 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
10900: I'm not quite ready to invent (e.g. an ssi_with_retry object).
10901: 
10902: At least the logic that drives this has been pulled out into loncommon.
10903: 
10904: 
10905: 
10906: ssi_with_retries - Does the server side include of a resource.
10907:                      if the ssi call returns an error we'll retry it up to
10908:                      the number of times requested by the caller.
10909:                      If we still have a problem, no text is appended to the
10910:                      output and we set some global variables.
10911:                      to indicate to the caller an SSI error occurred.  
10912:                      All of this is supposed to deal with the issues described
10913:                      in LON-CAPA BZ 5631 see:
10914:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
10915:                      by informing the user that this happened.
10916: 
10917: Parameters:
10918:   resource   - The resource to include.  This is passed directly, without
10919:                interpretation to lonnet::ssi.
10920:   form       - The form hash parameters that guide the interpretation of the resource
10921:                
10922:   retries    - Number of retries allowed before giving up completely.
10923: Returns:
10924:   On success, returns the rendered resource identified by the resource parameter.
10925: Side Effects:
10926:   The following global variables can be set:
10927:    ssi_error                - If an unrecoverable error occurred this becomes true.
10928:                               It is up to the caller to initialize this to false
10929:                               if desired.
10930:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
10931:                               of the resource that could not be rendered by the ssi
10932:                               call.
10933:    ssi_error_message   - The error string fetched from the ssi response
10934:                               in the event of an error.
10935: 
10936: 
10937: =head1 HANDLER SUBROUTINE
10938: 
10939: ssi_with_retries()
10940: 
10941: =head1 SUBROUTINES
10942: 
10943: =over
10944: 
10945: =item scantron_get_correction() : 
10946: 
10947:    Builds the interface screen to interact with the operator to fix a
10948:    specific error condition in a specific scanline
10949: 
10950:  Arguments:
10951:     $r           - Apache request object
10952:     $i           - number of the current scanline
10953:     $scan_record - hash ref as returned from &scantron_parse_scanline()
10954:     $scan_config - hash ref as returned from &Apache::lonnet::get_scantron_config()
10955:     $line        - full contents of the current scanline
10956:     $error       - error condition, valid values are
10957:                    'incorrectCODE', 'duplicateCODE',
10958:                    'doublebubble', 'missingbubble',
10959:                    'duplicateID', 'incorrectID'
10960:     $arg         - extra information needed
10961:        For errors:
10962:          - duplicateID   - paper number that this studentID was seen before on
10963:          - duplicateCODE - array ref of the paper numbers this CODE was
10964:                            seen on before
10965:          - incorrectCODE - current incorrect CODE 
10966:          - doublebubble  - array ref of the bubble lines that have double
10967:                            bubble errors
10968:          - missingbubble - array ref of the bubble lines that have missing
10969:                            bubble errors
10970: 
10971:    $randomorder - True if exam folder has randomorder set
10972:    $randompick  - True if exam folder has randompick set
10973:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
10974:                      for current line to question number used for same question
10975:                      in "Master Seqence" (as seen by Course Coordinator).
10976:    $startline   - Reference to hash where key is question number (0 is first)
10977:                   and value is number of first bubble line for current student
10978:                   or code-based randompick and/or randomorder.
10979: 
10980: 
10981: =item  scantron_get_maxbubble() : 
10982: 
10983:    Arguments:
10984:        $nav_error  - Reference to scalar which is a flag to indicate a
10985:                       failure to retrieve a navmap object.
10986:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
10987:        calling routine should trap the error condition and display the warning
10988:        found in &navmap_errormsg().
10989: 
10990:        $scantron_config - Reference to bubblesheet format configuration hash.
10991: 
10992:    Returns the maximum number of bubble lines that are expected to
10993:    occur. Does this by walking the selected sequence rendering the
10994:    resource and then checking &Apache::lonxml::get_problem_counter()
10995:    for what the current value of the problem counter is.
10996: 
10997:    Caches the results to $env{'form.scantron_maxbubble'},
10998:    $env{'form.scantron.bubble_lines.n'}, 
10999:    $env{'form.scantron.first_bubble_line.n'} and
11000:    $env{"form.scantron.sub_bubblelines.n"}
11001:    which are the total number of bubble lines, the number of bubble
11002:    lines for response n and number of the first bubble line for response n,
11003:    and a comma separated list of numbers of bubble lines for sub-questions
11004:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
11005: 
11006: 
11007: =item  scantron_validate_missingbubbles() : 
11008: 
11009:    Validates all scanlines in the selected file to not have any
11010:     answers that don't have bubbles that have not been verified
11011:     to be bubble free.
11012: 
11013: =item  scantron_process_students() : 
11014: 
11015:    Routine that does the actual grading of the bubblesheet information.
11016: 
11017:    The parsed scanline hash is added to %env 
11018: 
11019:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
11020:    foreach resource , with the form data of
11021: 
11022: 	'submitted'     =>'scantron' 
11023: 	'grade_target'  =>'grade',
11024: 	'grade_username'=> username of student
11025: 	'grade_domain'  => domain of student
11026: 	'grade_courseid'=> of course
11027: 	'grade_symb'    => symb of resource to grade
11028: 
11029:     This triggers a grading pass. The problem grading code takes care
11030:     of converting the bubbled letter information (now in %env) into a
11031:     valid submission.
11032: 
11033: =item  scantron_upload_scantron_data() :
11034: 
11035:     Creates the screen for adding a new bubblesheet data file to a course.
11036: 
11037: =item  scantron_upload_scantron_data_save() : 
11038: 
11039:    Adds a provided bubble information data file to the course if user
11040:    has the correct privileges to do so. 
11041: 
11042: =item  valid_file() :
11043: 
11044:    Validates that the requested bubble data file exists in the course.
11045: 
11046: =item  scantron_download_scantron_data() : 
11047: 
11048:    Shows a list of the three internal files (original, corrected,
11049:    skipped) for a specific bubblesheet data file that exists in the
11050:    course.
11051: 
11052: =item  scantron_validate_ID() : 
11053: 
11054:    Validates all scanlines in the selected file to not have any
11055:    invalid or underspecified student/employee IDs
11056: 
11057: =item navmap_errormsg() :
11058: 
11059:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
11060:    Should be called whenever the request to instantiate a navmap object fails.  
11061: 
11062: =back
11063: 
11064: =cut

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