File:  [LON-CAPA] / loncom / homework / grades.pm
Revision 1.596.2.12.2.33: download - view: text, annotated - select for diffs
Tue Mar 10 17:01:24 2015 UTC (9 years, 1 month ago) by raeburn
Branches: version_2_11_X
Diff to branchpoint 1.596.2.12: preferred, unified
- For 2.11
  Backport 1.731, 1.732, 1.733

    1: # The LearningOnline Network with CAPA
    2: # The LON-CAPA Grading handler
    3: #
    4: # $Id: grades.pm,v 1.596.2.12.2.33 2015/03/10 17:01:24 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 String::Similarity;
   48: use LONCAPA;
   49: 
   50: use POSIX qw(floor);
   51: 
   52: 
   53: 
   54: my %perm=();
   55: my %old_essays=();
   56: 
   57: #  These variables are used to recover from ssi errors
   58: 
   59: my $ssi_retries = 5;
   60: my $ssi_error;
   61: my $ssi_error_resource;
   62: my $ssi_error_message;
   63: 
   64: 
   65: sub ssi_with_retries {
   66:     my ($resource, $retries, %form) = @_;
   67:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
   68:     if ($response->is_error) {
   69: 	$ssi_error          = 1;
   70: 	$ssi_error_resource = $resource;
   71: 	$ssi_error_message  = $response->code . " " . $response->message;
   72:     }
   73: 
   74:     return $content;
   75: 
   76: }
   77: #
   78: #  Prodcuces an ssi retry failure error message to the user:
   79: #
   80: 
   81: sub ssi_print_error {
   82:     my ($r) = @_;
   83:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
   84:     $r->print('
   85: <br />
   86: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   87: <p>
   88: '.&mt('Unable to retrieve a resource from a server:').'<br />
   89: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   90: '.&mt('Error:').' '.$ssi_error_message.'
   91: </p>
   92: <p>'.
   93: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   94: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   95: '</p>');
   96:     return;
   97: }
   98: 
   99: #
  100: # --- Retrieve the parts from the metadata file.---
  101: sub getpartlist {
  102:     my ($symb,$errorref) = @_;
  103: 
  104:     my $navmap   = Apache::lonnavmaps::navmap->new();
  105:     unless (ref($navmap)) {
  106:         if (ref($errorref)) { 
  107:             $$errorref = 'navmap';
  108:             return;
  109:         }
  110:     }
  111:     my $res      = $navmap->getBySymb($symb);
  112:     my $partlist = $res->parts();
  113:     my $url      = $res->src();
  114:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
  115: 
  116:     my @stores;
  117:     foreach my $part (@{ $partlist }) {
  118: 	foreach my $key (@metakeys) {
  119: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
  120: 	}
  121:     }
  122:     return @stores;
  123: }
  124: 
  125: # --- Get the symbolic name of a problem and the url
  126: sub get_symb {
  127:     my ($request,$silent) = @_;
  128:     my $symb=$env{'form.symb'};
  129:     unless ($symb) {
  130:         (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
  131:         $symb = &Apache::lonnet::symbread($url);
  132:         if ($symb eq '') { 
  133: 	    if (!$silent) {
  134:                 $request->print(&mt("Unable to handle ambiguous references: [_1].",$url));
  135: 	        return ();
  136: 	    }
  137:         }
  138:     }
  139:     &Apache::lonenc::check_decrypt(\$symb);
  140:     return ($symb);
  141: }
  142: 
  143: #--- Format fullname, username:domain if different for display
  144: #--- Use anywhere where the student names are listed
  145: sub nameUserString {
  146:     my ($type,$fullname,$uname,$udom) = @_;
  147:     if ($type eq 'header') {
  148: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
  149:     } else {
  150: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
  151: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
  152:     }
  153: }
  154: 
  155: #--- Get the partlist and the response type for a given problem. ---
  156: #--- Indicate if a response type is coded handgraded or not. ---
  157: sub response_type {
  158:     my ($symb,$response_error) = @_;
  159: 
  160:     my $navmap = Apache::lonnavmaps::navmap->new();
  161:     unless (ref($navmap)) {
  162:         if (ref($response_error)) {
  163:             $$response_error = 1;
  164:         }
  165:         return;
  166:     }
  167:     my $res = $navmap->getBySymb($symb);
  168:     unless (ref($res)) {
  169:         $$response_error = 1;
  170:         return;
  171:     }
  172:     my $partlist = $res->parts();
  173:     my %vPart = 
  174: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
  175:     my (%response_types,%handgrade);
  176:     foreach my $part (@{ $partlist }) {
  177: 	next if (%vPart && !exists($vPart{$part}));
  178: 
  179: 	my @types = $res->responseType($part);
  180: 	my @ids = $res->responseIds($part);
  181: 	for (my $i=0; $i < scalar(@ids); $i++) {
  182: 	    $response_types{$part}{$ids[$i]} = $types[$i];
  183: 	    $handgrade{$part.'_'.$ids[$i]} = 
  184: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
  185: 				     '.handgrade',$symb);
  186: 	}
  187:     }
  188:     return ($partlist,\%handgrade,\%response_types);
  189: }
  190: 
  191: sub flatten_responseType {
  192:     my ($responseType) = @_;
  193:     my @part_response_id =
  194: 	map { 
  195: 	    my $part = $_;
  196: 	    map {
  197: 		[$part,$_]
  198: 		} sort(keys(%{ $responseType->{$part} }));
  199: 	} sort(keys(%$responseType));
  200:     return @part_response_id;
  201: }
  202: 
  203: sub get_display_part {
  204:     my ($partID,$symb)=@_;
  205:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
  206:     if (defined($display) and $display ne '') {
  207:         $display.= ' (<span class="LC_internal_info">'
  208:                   .&mt('Part ID: [_1]',$partID).'</span>)';
  209:     } else {
  210: 	$display=$partID;
  211:     }
  212:     return $display;
  213: }
  214: 
  215: #--- Show resource title
  216: #--- and parts and response type
  217: sub showResourceInfo {
  218:     my ($symb,$probTitle,$checkboxes,$res_error) = @_;
  219:     my $result = '<h3>'.&mt('Current Resource').': '.$probTitle.'</h3>'."\n";
  220:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
  221:     if (ref($res_error)) {
  222:         if ($$res_error) {
  223:             return;
  224:         }
  225:     }
  226:     $result.=&Apache::loncommon::start_data_table()
  227:             .&Apache::loncommon::start_data_table_header_row();
  228:     if ($checkboxes) {
  229:         $result.='<th>&nbsp;</th>';
  230:     }
  231:     $result.='<th>'.&mt('Problem Part').'</th>'
  232:             .'<th>'.&mt('Res. ID').'</th>'
  233:             .'<th>'.&mt('Type').'</th>'
  234:             .&Apache::loncommon::end_data_table_header_row();
  235:     my %resptype = ();
  236:     my $hdgrade='no';
  237:     my %partsseen;
  238:     foreach my $partID (sort(keys(%$responseType))) {
  239:         foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) {
  240:             my $handgrade=$$handgrade{$partID.'_'.$resID};
  241:             my $responsetype = $responseType->{$partID}->{$resID};
  242:             $hdgrade = $handgrade if ($handgrade eq 'yes');
  243:             $result.=&Apache::loncommon::start_data_table_row();
  244:             if ($checkboxes) {
  245:                 if (exists($partsseen{$partID})) {
  246:                     $result.="<td>&nbsp;</td>";
  247:                 } else {
  248:                     $result.="<td><input type='checkbox' name='vPart' value='$partID' checked='checked' /></td>";
  249:                 }
  250:                 $partsseen{$partID}=1;
  251:             }
  252:             my $display_part=&get_display_part($partID,$symb);
  253:             $result.='<td>'.$display_part.'</td>'
  254:                     .'<td>'.'<span class="LC_internal_info">'.$resID.'</span></td>'
  255:                     .'<td>'.&mt($responsetype).'</td>'
  256: #                   .'<td><b>'.&mt('Handgrade: [_1]',$handgrade).'</b></td>'
  257:                     .&Apache::loncommon::end_data_table_row();
  258:         }
  259:     }
  260:     $result.=&Apache::loncommon::end_data_table();
  261:     return $result,$responseType,$hdgrade,$partlist,$handgrade;
  262: }
  263: 
  264: sub reset_caches {
  265:     &reset_analyze_cache();
  266:     &reset_perm();
  267:     &reset_old_essays();
  268: }
  269: 
  270: {
  271:     my %analyze_cache;
  272:     my %analyze_cache_formkeys;
  273: 
  274:     sub reset_analyze_cache {
  275: 	undef(%analyze_cache);
  276:         undef(%analyze_cache_formkeys);
  277:     }
  278: 
  279:     sub get_analyze {
  280: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
  281: 	my $key = "$symb\0$uname\0$udom";
  282:         if ($type eq 'randomizetry') {
  283:             if ($trial ne '') {
  284:                 $key .= "\0".$trial;
  285:             }
  286:         }
  287: 	if (exists($analyze_cache{$key})) {
  288:             my $getupdate = 0;
  289:             if (ref($add_to_hash) eq 'HASH') {
  290:                 foreach my $item (keys(%{$add_to_hash})) {
  291:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
  292:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
  293:                             $getupdate = 1;
  294:                             last;
  295:                         }
  296:                     } else {
  297:                         $getupdate = 1;
  298:                     }
  299:                 }
  300:             }
  301:             if (!$getupdate) {
  302:                 return $analyze_cache{$key};
  303:             }
  304:         }
  305: 
  306: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  307: 	$url=&Apache::lonnet::clutter($url);
  308:         my %form = ('grade_target'      => 'analyze',
  309:                     'grade_domain'      => $udom,
  310:                     'grade_symb'        => $symb,
  311:                     'grade_courseid'    =>  $env{'request.course.id'},
  312:                     'grade_username'    => $uname,
  313:                     'grade_noincrement' => $no_increment);
  314:         if ($bubbles_per_row ne '') {
  315:             $form{'bubbles_per_row'} = $bubbles_per_row;
  316:         }
  317:         if ($type eq 'randomizetry') {
  318:             $form{'grade_questiontype'} = $type;
  319:             if ($rndseed ne '') {
  320:                 $form{'grade_rndseed'} = $rndseed;
  321:             }
  322:         }
  323:         if (ref($add_to_hash)) {
  324:             %form = (%form,%{$add_to_hash});
  325:         }
  326: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
  327: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  328: 	my %analyze=&Apache::lonnet::str2hash($subresult);
  329:         if (ref($add_to_hash) eq 'HASH') {
  330:             $analyze_cache_formkeys{$key} = $add_to_hash;
  331:         } else {
  332:             $analyze_cache_formkeys{$key} = {};
  333:         }
  334: 	return $analyze_cache{$key} = \%analyze;
  335:     }
  336: 
  337:     sub get_order {
  338: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
  339: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
  340: 	return $analyze->{"$partid.$respid.shown"};
  341:     }
  342: 
  343:     sub get_radiobutton_correct_foil {
  344: 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
  345: 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
  346:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
  347:         if (ref($foils) eq 'ARRAY') {
  348: 	    foreach my $foil (@{$foils}) {
  349: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
  350: 		    return $foil;
  351: 	        }
  352: 	    }
  353: 	}
  354:     }
  355: 
  356:     sub scantron_partids_tograde {
  357:         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row) = @_;
  358:         my (%analysis,@parts);
  359:         if (ref($resource)) {
  360:             my $symb = $resource->symb();
  361:             my $add_to_form;
  362:             if ($check_for_randomlist) {
  363:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
  364:             }
  365:             my $analyze =
  366:                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
  367:                              undef,undef,undef,$bubbles_per_row);
  368:             if (ref($analyze) eq 'HASH') {
  369:                 %analysis = %{$analyze};
  370:             }
  371:             if (ref($analysis{'parts'}) eq 'ARRAY') {
  372:                 foreach my $part (@{$analysis{'parts'}}) {
  373:                     my ($id,$respid) = split(/\./,$part);
  374:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
  375:                         push(@parts,$part);
  376:                     }
  377:                 }
  378:             }
  379:         }
  380:         return (\%analysis,\@parts);
  381:     }
  382: 
  383: }
  384: 
  385: #--- Clean response type for display
  386: #--- Currently filters option/rank/radiobutton/match/essay/Task
  387: #        response types only.
  388: sub cleanRecord {
  389:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
  390: 	$uname,$udom,$type,$trial,$rndseed) = @_;
  391:     my $grayFont = '<span class="LC_internal_info">';
  392:     if ($response =~ /^(option|rank)$/) {
  393: 	my %answer=&Apache::lonnet::str2hash($answer);
  394:         my @answer = %answer;
  395:         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
  396: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  397: 	my ($toprow,$bottomrow);
  398: 	foreach my $foil (@$order) {
  399: 	    if ($grading{$foil} == 1) {
  400: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
  401: 	    } else {
  402: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
  403: 	    }
  404: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  405: 	}
  406: 	return '<blockquote><table border="1">'.
  407: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  408: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  409: 	    $bottomrow.'</tr></table></blockquote>';
  410:     } elsif ($response eq 'match') {
  411: 	my %answer=&Apache::lonnet::str2hash($answer);
  412:         my @answer = %answer;
  413:         %answer = map {&HTML::Entities::encode($_, '"<>&')} @answer;
  414: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  415: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
  416: 	my ($toprow,$middlerow,$bottomrow);
  417: 	foreach my $foil (@$order) {
  418: 	    my $item=shift(@items);
  419: 	    if ($grading{$foil} == 1) {
  420: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
  421: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
  422: 	    } else {
  423: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
  424: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
  425: 	    }
  426: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  427: 	}
  428: 	return '<blockquote><table border="1">'.
  429: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  430: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
  431: 	    $middlerow.'</tr>'.
  432: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  433: 	    $bottomrow.'</tr></table></blockquote>';
  434:     } elsif ($response eq 'radiobutton') {
  435: 	my %answer=&Apache::lonnet::str2hash($answer);
  436: 	my ($toprow,$bottomrow);
  437: 	my $correct = 
  438: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
  439: 	foreach my $foil (@$order) {
  440: 	    if (exists($answer{$foil})) {
  441: 		if ($foil eq $correct) {
  442: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
  443: 		} else {
  444: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
  445: 		}
  446: 	    } else {
  447: 		$toprow.='<td>'.&mt('false').'</td>';
  448: 	    }
  449: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  450: 	}
  451: 	return '<blockquote><table border="1">'.
  452: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  453: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  454: 	    $bottomrow.'</tr></table></blockquote>';
  455:     } elsif ($response eq 'essay') {
  456: 	if (! exists ($env{'form.'.$symb})) {
  457: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
  458: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
  459: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
  460: 
  461: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  462: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
  463: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
  464: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
  465: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
  466: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
  467: 	}
  468: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
  469:     } elsif ( $response eq 'organic') {
  470:         my $result=&mt('Smile representation: [_1]',
  471:                            '"<tt>'.&HTML::Entities::encode($answer, '"<>&').'</tt>"');
  472: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
  473: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
  474: 	return $result;
  475:     } elsif ( $response eq 'Task') {
  476: 	if ( $answer eq 'SUBMITTED') {
  477: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
  478: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
  479: 	    return $result;
  480: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
  481: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
  482: 			       keys(%{$record}));
  483: 	    return join('<br />',($version,@matches));
  484: 			       
  485: 			       
  486: 	} else {
  487: 	    my $result =
  488: 		'<p>'
  489: 		.&mt('Overall result: [_1]',
  490: 		     $record->{$version."resource.$respid.$partid.status"})
  491: 		.'</p>';
  492: 	    
  493: 	    $result .= '<ul>';
  494: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
  495: 			     keys(%{$record}));
  496: 	    foreach my $grade (sort(@grade)) {
  497: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
  498: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
  499: 				     $dim, $record->{$grade}).
  500: 			  '</li>';
  501: 	    }
  502: 	    $result.='</ul>';
  503: 	    return $result;
  504: 	}
  505:     } elsif ( $response =~ m/(?:numerical|formula|custom)/) {
  506:         # Respect multiple input fields, see Bug #5409 
  507: 	$answer = 
  508: 	    &Apache::loncommon::format_previous_attempt_value('submission',
  509: 							      $answer);
  510:         return $answer;
  511:     }
  512:     return &HTML::Entities::encode($answer, '"<>&');
  513: }
  514: 
  515: #-- A couple of common js functions
  516: sub commonJSfunctions {
  517:     my $request = shift;
  518:     $request->print(<<COMMONJSFUNCTIONS);
  519: <script type="text/javascript" language="javascript">
  520:     function radioSelection(radioButton) {
  521: 	var selection=null;
  522: 	if (radioButton.length > 1) {
  523: 	    for (var i=0; i<radioButton.length; i++) {
  524: 		if (radioButton[i].checked) {
  525: 		    return radioButton[i].value;
  526: 		}
  527: 	    }
  528: 	} else {
  529: 	    if (radioButton.checked) return radioButton.value;
  530: 	}
  531: 	return selection;
  532:     }
  533: 
  534:     function pullDownSelection(selectOne) {
  535: 	var selection="";
  536: 	if (selectOne.length > 1) {
  537: 	    for (var i=0; i<selectOne.length; i++) {
  538: 		if (selectOne[i].selected) {
  539: 		    return selectOne[i].value;
  540: 		}
  541: 	    }
  542: 	} else {
  543:             // only one value it must be the selected one
  544: 	    return selectOne.value;
  545: 	}
  546:     }
  547: </script>
  548: COMMONJSFUNCTIONS
  549: }
  550: 
  551: #--- Dumps the class list with usernames,list of sections,
  552: #--- section, ids and fullnames for each user.
  553: sub getclasslist {
  554:     my ($getsec,$filterlist,$getgroup) = @_;
  555:     my @getsec;
  556:     my @getgroup;
  557:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  558:     if (!ref($getsec)) {
  559: 	if ($getsec ne '' && $getsec ne 'all') {
  560: 	    @getsec=($getsec);
  561: 	}
  562:     } else {
  563: 	@getsec=@{$getsec};
  564:     }
  565:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
  566:     if (!ref($getgroup)) {
  567: 	if ($getgroup ne '' && $getgroup ne 'all') {
  568: 	    @getgroup=($getgroup);
  569: 	}
  570:     } else {
  571: 	@getgroup=@{$getgroup};
  572:     }
  573:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
  574: 
  575:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
  576:     # Bail out if we were unable to get the classlist
  577:     return if (! defined($classlist));
  578:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
  579:     #
  580:     my %sections;
  581:     my %fullnames;
  582:     foreach my $student (keys(%$classlist)) {
  583:         my $end      = 
  584:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
  585:         my $start    = 
  586:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
  587:         my $id       = 
  588:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
  589:         my $section  = 
  590:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
  591:         my $fullname = 
  592:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
  593:         my $status   = 
  594:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
  595:         my $group   = 
  596:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  597: 	# filter students according to status selected
  598: 	if ($filterlist && (!($stu_status =~ /Any/))) {
  599: 	    if (!($stu_status =~ $status)) {
  600: 		delete($classlist->{$student});
  601: 		next;
  602: 	    }
  603: 	}
  604: 	# filter students according to groups selected
  605: 	my @stu_groups = split(/,/,$group);
  606: 	if (@getgroup) {
  607: 	    my $exclude = 1;
  608: 	    foreach my $grp (@getgroup) {
  609: 	        foreach my $stu_group (@stu_groups) {
  610: 	            if ($stu_group eq $grp) {
  611: 	                $exclude = 0;
  612:     	            } 
  613: 	        }
  614:     	        if (($grp eq 'none') && !$group) {
  615:         	        $exclude = 0;
  616:         	}
  617: 	    }
  618: 	    if ($exclude) {
  619: 	        delete($classlist->{$student});
  620: 	    }
  621: 	}
  622: 	$section = ($section ne '' ? $section : 'none');
  623: 	if (&canview($section)) {
  624: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  625: 		$sections{$section}++;
  626: 		if ($classlist->{$student}) {
  627: 		    $fullnames{$student}=$fullname;
  628: 		}
  629: 	    } else {
  630: 		delete($classlist->{$student});
  631: 	    }
  632: 	} else {
  633: 	    delete($classlist->{$student});
  634: 	}
  635:     }
  636:     my %seen = ();
  637:     my @sections = sort(keys(%sections));
  638:     return ($classlist,\@sections,\%fullnames);
  639: }
  640: 
  641: sub canmodify {
  642:     my ($sec)=@_;
  643:     if ($perm{'mgr'}) {
  644: 	if (!defined($perm{'mgr_section'})) {
  645: 	    # can modify whole class
  646: 	    return 1;
  647: 	} else {
  648: 	    if ($sec eq $perm{'mgr_section'}) {
  649: 		#can modify the requested section
  650: 		return 1;
  651: 	    } else {
  652: 		# can't modify the request section
  653: 		return 0;
  654: 	    }
  655: 	}
  656:     }
  657:     #can't modify
  658:     return 0;
  659: }
  660: 
  661: sub canview {
  662:     my ($sec)=@_;
  663:     if ($perm{'vgr'}) {
  664: 	if (!defined($perm{'vgr_section'})) {
  665: 	    # can modify whole class
  666: 	    return 1;
  667: 	} else {
  668: 	    if ($sec eq $perm{'vgr_section'}) {
  669: 		#can modify the requested section
  670: 		return 1;
  671: 	    } else {
  672: 		# can't modify the request section
  673: 		return 0;
  674: 	    }
  675: 	}
  676:     }
  677:     #can't modify
  678:     return 0;
  679: }
  680: 
  681: #--- Retrieve the grade status of a student for all the parts
  682: sub student_gradeStatus {
  683:     my ($symb,$udom,$uname,$partlist) = @_;
  684:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
  685:     my %partstatus = ();
  686:     foreach (@$partlist) {
  687: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  688: 	$status              = 'nothing' if ($status eq '');
  689: 	$partstatus{$_}      = $status;
  690: 	my $subkey           = "resource.$_.submitted_by";
  691: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
  692:     }
  693:     return %partstatus;
  694: }
  695: 
  696: # hidden form and javascript that calls the form
  697: # Use by verifyscript and viewgrades
  698: # Shows a student's view of problem and submission
  699: sub jscriptNform {
  700:     my ($symb) = @_;
  701:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  702:     my $jscript='<script type="text/javascript" language="javascript">'."\n".
  703: 	'    function viewOneStudent(user,domain) {'."\n".
  704: 	'	document.onestudent.student.value = user;'."\n".
  705: 	'	document.onestudent.userdom.value = domain;'."\n".
  706: 	'	document.onestudent.submit();'."\n".
  707: 	'    }'."\n".
  708: 	'</script>'."\n";
  709:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
  710: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  711: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
  712: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n".
  713: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
  714: 	'<input type="hidden" name="command" value="submission" />'."\n".
  715: 	'<input type="hidden" name="student" value="" />'."\n".
  716: 	'<input type="hidden" name="userdom" value="" />'."\n".
  717: 	'</form>'."\n";
  718:     return $jscript;
  719: }
  720: 
  721: 
  722: 
  723: # Given the score (as a number [0-1] and the weight) what is the final
  724: # point value? This function will round to the nearest tenth, third,
  725: # or quarter if one of those is within the tolerance of .00001.
  726: sub compute_points {
  727:     my ($score, $weight) = @_;
  728:     
  729:     my $tolerance = .00001;
  730:     my $points = $score * $weight;
  731: 
  732:     # Check for nearness to 1/x.
  733:     my $check_for_nearness = sub {
  734:         my ($factor) = @_;
  735:         my $num = ($points * $factor) + $tolerance;
  736:         my $floored_num = floor($num);
  737:         if ($num - $floored_num < 2 * $tolerance * $factor) {
  738:             return $floored_num / $factor;
  739:         }
  740:         return $points;
  741:     };
  742: 
  743:     $points = $check_for_nearness->(10);
  744:     $points = $check_for_nearness->(3);
  745:     $points = $check_for_nearness->(4);
  746:     
  747:     return $points;
  748: }
  749: 
  750: #------------------ End of general use routines --------------------
  751: 
  752: #
  753: # Find most similar essay
  754: #
  755: 
  756: sub most_similar {
  757:     my ($uname,$udom,$symb,$uessay)=@_;
  758: 
  759:     unless ($symb) { return ''; }
  760: 
  761:     unless (ref($old_essays{$symb}) eq 'HASH') { return ''; }
  762: 
  763: # ignore spaces and punctuation
  764: 
  765:     $uessay=~s/\W+/ /gs;
  766: 
  767: # ignore empty submissions (occuring when only files are sent)
  768: 
  769:     unless ($uessay=~/\w+/s) { return ''; }
  770: 
  771: # these will be returned. Do not care if not at least 50 percent similar
  772:     my $limit=0.6;
  773:     my $sname='';
  774:     my $sdom='';
  775:     my $scrsid='';
  776:     my $sessay='';
  777: # go through all essays ...
  778:     foreach my $tkey (keys(%{$old_essays{$symb}})) {
  779: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  780: # ... except the same student
  781:         next if (($tname eq $uname) && ($tdom eq $udom));
  782: 	my $tessay=$old_essays{$symb}{$tkey};
  783: 	$tessay=~s/\W+/ /gs;
  784: # String similarity gives up if not even limit
  785: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  786: # Found one
  787: 	if ($tsimilar>$limit) {
  788: 	    $limit=$tsimilar;
  789: 	    $sname=$tname;
  790: 	    $sdom=$tdom;
  791: 	    $scrsid=$tcrsid;
  792: 	    $sessay=$old_essays{$symb}{$tkey};
  793: 	}
  794:     }
  795:     if ($limit>0.6) {
  796:        return ($sname,$sdom,$scrsid,$sessay,$limit);
  797:     } else {
  798:        return ('','','','',0);
  799:     }
  800: }
  801: 
  802: #-------------------------------------------------------------------
  803: 
  804: #------------------------------------ Receipt Verification Routines
  805: #
  806: #--- Check whether a receipt number is valid.---
  807: sub verifyreceipt {
  808:     my $request  = shift;
  809: 
  810:     my $courseid = $env{'request.course.id'};
  811:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
  812: 	$env{'form.receipt'};
  813:     $receipt     =~ s/[^\-\d]//g;
  814:     my ($symb)   = &get_symb($request);
  815: 
  816:     my $title.=
  817: 	'<h3><span class="LC_info">'.
  818: 	&mt('Verifying Receipt No. [_1]',$receipt).
  819: 	'</span></h3>'."\n".
  820: 	'<h4>'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).
  821: 	'</h4>'."\n";
  822: 
  823:     my ($string,$contents,$matches) = ('','',0);
  824:     my (undef,undef,$fullname) = &getclasslist('all','0');
  825:     
  826:     my $receiptparts=0;
  827:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
  828: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
  829:     my $parts=['0'];
  830:     if ($receiptparts) {
  831:         my $res_error; 
  832:         ($parts)=&response_type($symb,\$res_error);
  833:         if ($res_error) {
  834:             return &navmap_errormsg();
  835:         } 
  836:     }
  837:     
  838:     my $header = 
  839: 	&Apache::loncommon::start_data_table().
  840: 	&Apache::loncommon::start_data_table_header_row().
  841: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
  842: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
  843: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
  844:     if ($receiptparts) {
  845: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
  846:     }
  847:     $header.=
  848: 	&Apache::loncommon::end_data_table_header_row();
  849: 
  850:     foreach (sort 
  851: 	     {
  852: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  853: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  854: 		 }
  855: 		 return $a cmp $b;
  856: 	     } (keys(%$fullname))) {
  857: 	my ($uname,$udom)=split(/\:/);
  858: 	foreach my $part (@$parts) {
  859: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
  860: 		$contents.=
  861: 		    &Apache::loncommon::start_data_table_row().
  862: 		    '<td>&nbsp;'."\n".
  863: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
  864: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
  865: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
  866: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
  867: 		if ($receiptparts) {
  868: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
  869: 		}
  870: 		$contents.= 
  871: 		    &Apache::loncommon::end_data_table_row()."\n";
  872: 		
  873: 		$matches++;
  874: 	    }
  875: 	}
  876:     }
  877:     if ($matches == 0) {
  878:         $string = $title
  879:                  .'<p class="LC_warning">'
  880:                  .&mt('No match found for the above receipt number.')
  881:                  .'</p>';
  882:     } else {
  883: 	$string = &jscriptNform($symb).$title.
  884: 	    '<p>'.
  885: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
  886: 	    '</p>'.
  887: 	    $header.
  888: 	    $contents.
  889: 	    &Apache::loncommon::end_data_table()."\n";
  890:     }
  891:     return $string.&show_grading_menu_form($symb);
  892: }
  893: 
  894: #--- This is called by a number of programs.
  895: #--- Called from the Grading Menu - View/Grade an individual student
  896: #--- Also called directly when one clicks on the subm button 
  897: #    on the problem page.
  898: sub listStudents {
  899:     my ($request) = shift;
  900: 
  901:     my ($symb) = &get_symb($request);
  902:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
  903:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
  904:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
  905:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
  906:     my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  907:     my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
  908:     $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
  909: 	&Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
  910: 
  911:     my $result='<h3><span class="LC_info">&nbsp;'
  912: 	.&mt("$viewgrade Submissions for a Student or a Group of Students")
  913: 	.'</span></h3>';
  914: 
  915:     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($symb,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
  916: 
  917:     my %lt = &Apache::lonlocal::texthash (
  918: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
  919: 		'single'   => 'Please select the student before clicking on the Next button.',
  920: 	     );
  921:     $request->print(<<LISTJAVASCRIPT);
  922: <script type="text/javascript" language="javascript">
  923:     function checkSelect(checkBox) {
  924: 	var ctr=0;
  925: 	var sense="";
  926: 	if (checkBox.length > 1) {
  927: 	    for (var i=0; i<checkBox.length; i++) {
  928: 		if (checkBox[i].checked) {
  929: 		    ctr++;
  930: 		}
  931: 	    }
  932: 	    sense = '$lt{'multiple'}';
  933: 	} else {
  934: 	    if (checkBox.checked) {
  935: 		ctr = 1;
  936: 	    }
  937: 	    sense = '$lt{'single'}';
  938: 	}
  939: 	if (ctr == 0) {
  940: 	    alert(sense);
  941: 	    return false;
  942: 	}
  943: 	document.gradesub.submit();
  944:     }
  945: 
  946:     function reLoadList(formname) {
  947: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
  948: 	formname.command.value = 'submission';
  949: 	formname.submit();
  950:     }
  951: </script>
  952: LISTJAVASCRIPT
  953: 
  954:     &commonJSfunctions($request);
  955:     $request->print($result);
  956: 
  957:     my $checkhdgrade = ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked="checked"' : '';
  958:     my $checklastsub = $checkhdgrade eq '' ? 'checked="checked"' : '';
  959:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
  960: 	"\n".$table;
  961: 	
  962:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
  963:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
  964:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
  965:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
  966:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
  967:                   .&Apache::lonhtmlcommon::row_closure();
  968:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
  969:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
  970:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
  971:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
  972:                   .&Apache::lonhtmlcommon::row_closure();
  973: 
  974:     my $submission_options;
  975:     if ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
  976: 	$submission_options.=
  977: 	    '<label><input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> '.&mt('essay part only').' </label>'."\n";
  978:     }
  979:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  980:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
  981:     $env{'form.Status'} = $saveStatus;
  982:     $submission_options.=
  983:         '<span class="LC_nobreak">'.
  984:         '<label><input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> '.
  985:         &mt('last submission only').' </label></span>'."\n".
  986:         '<span class="LC_nobreak">'.
  987:         '<label><input type="radio" name="lastSub" value="last" /> '.
  988:         &mt('last submission &amp; parts info').' </label></span>'."\n".
  989:         '<span class="LC_nobreak">'.
  990:         '<label><input type="radio" name="lastSub" value="datesub" /> '.
  991:         &mt('by dates and submissions').'</label></span>'."\n".
  992:         '<span class="LC_nobreak">'.
  993:         '<label><input type="radio" name="lastSub" value="all" /> '.
  994:         &mt('all details').'</label></span>';
  995:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
  996:                   .$submission_options
  997:                   .&Apache::lonhtmlcommon::row_closure();
  998: 
  999:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
 1000:                   .'<select name="increment">'
 1001:                   .'<option value="1">'.&mt('Whole Points').'</option>'
 1002:                   .'<option value=".5">'.&mt('Half Points').'</option>'
 1003:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
 1004:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
 1005:                   .'</select>'
 1006:                   .&Apache::lonhtmlcommon::row_closure();
 1007: 
 1008:     $gradeTable .= 
 1009:         &build_section_inputs().
 1010: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
 1011: 	'<input type="hidden" name="handgrade"   value="'.$env{'form.handgrade'}.'" /><br />'."\n".
 1012: 	'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" /><br />'."\n".
 1013: 	'<input type="hidden" name="saveState"   value="'.$env{'form.saveState'}.'" />'."\n".
 1014: 	'<input type="hidden" name="probTitle"   value="'.$env{'form.probTitle'}.'" />'."\n".
 1015: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 1016: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
 1017: 
 1018:     if (exists($env{'form.gradingMenu'}) && exists($env{'form.Status'})) {
 1019: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
 1020:     } else {
 1021:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
 1022:                       .&Apache::lonhtmlcommon::StatusOptions(
 1023:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
 1024:                       .&Apache::lonhtmlcommon::row_closure();
 1025:     }
 1026: 
 1027:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
 1028:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
 1029:                   .&Apache::lonhtmlcommon::row_closure(1)
 1030:                   .&Apache::lonhtmlcommon::end_pick_box();
 1031: 
 1032:     $gradeTable .= '<p>'
 1033:                   .&mt('To '.lc($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"
 1034:                   .'<input type="hidden" name="command" value="processGroup" />'
 1035:                   .'</p>';
 1036: 
 1037: # checkall buttons
 1038:     $gradeTable.=&check_script('gradesub', 'stuinfo');
 1039:     $gradeTable.='<input type="button" '."\n".
 1040:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
 1041:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
 1042:     $gradeTable.=&check_buttons();
 1043:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
 1044:     $gradeTable.= &Apache::loncommon::start_data_table().
 1045: 	&Apache::loncommon::start_data_table_header_row();
 1046:     my $loop = 0;
 1047:     while ($loop < 2) {
 1048: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
 1049: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
 1050: 	if ($env{'form.showgrading'} eq 'yes' 
 1051: 	    && $submitonly ne 'queued'
 1052: 	    && $submitonly ne 'all') {
 1053: 	    foreach my $part (sort(@$partlist)) {
 1054: 		my $display_part=
 1055: 		    &get_display_part((split(/_/,$part))[0],$symb);
 1056: 		$gradeTable.=
 1057: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
 1058: 	    }
 1059: 	} elsif ($submitonly eq 'queued') {
 1060: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
 1061: 	}
 1062: 	$loop++;
 1063: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
 1064:     }
 1065:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
 1066: 
 1067:     my $ctr = 0;
 1068:     foreach my $student (sort 
 1069: 			 {
 1070: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 1071: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 1072: 			     }
 1073: 			     return $a cmp $b;
 1074: 			 }
 1075: 			 (keys(%$fullname))) {
 1076: 	my ($uname,$udom) = split(/:/,$student);
 1077: 
 1078: 	my %status = ();
 1079: 
 1080: 	if ($submitonly eq 'queued') {
 1081: 	    my %queue_status = 
 1082: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 1083: 							$udom,$uname);
 1084: 	    next if (!defined($queue_status{'gradingqueue'}));
 1085: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
 1086: 	}
 1087: 
 1088: 	if ($env{'form.showgrading'} eq 'yes' 
 1089: 	    && $submitonly ne 'queued'
 1090: 	    && $submitonly ne 'all') {
 1091: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
 1092: 	    my $submitted = 0;
 1093: 	    my $graded = 0;
 1094: 	    my $incorrect = 0;
 1095: 	    foreach (keys(%status)) {
 1096: 		$submitted = 1 if ($status{$_} ne 'nothing');
 1097: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
 1098: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
 1099: 		
 1100: 		my ($foo,$partid,$foo1) = split(/\./,$_);
 1101: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 1102: 		    $submitted = 0;
 1103: 		    my ($part)=split(/\./,$partid);
 1104: 		    $gradeTable.='<input type="hidden" name="'.
 1105: 			$student.':'.$part.':submitted_by" value="'.
 1106: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
 1107: 		}
 1108: 	    }
 1109: 	    
 1110: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 1111: 				     $submitonly eq 'incorrect' ||
 1112: 				     $submitonly eq 'graded'));
 1113: 	    next if (!$graded && ($submitonly eq 'graded'));
 1114: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 1115: 	}
 1116: 
 1117: 	$ctr++;
 1118: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
 1119:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
 1120: 	if ( $perm{'vgr'} eq 'F' ) {
 1121: 	    if ($ctr%2 ==1) {
 1122: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
 1123: 	    }
 1124: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
 1125:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
 1126:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
 1127: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
 1128: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
 1129: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
 1130: 
 1131: 	    if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
 1132: 		foreach (sort(keys(%status))) {
 1133: 		    next if ($_ =~ /^resource.*?submitted_by$/);
 1134: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
 1135: 		}
 1136: 	    }
 1137: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
 1138: 	    if ($ctr%2 ==0) {
 1139: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
 1140: 	    }
 1141: 	}
 1142:     }
 1143:     if ($ctr%2 ==1) {
 1144: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
 1145: 	    if ($env{'form.showgrading'} eq 'yes' 
 1146: 		&& $submitonly ne 'queued'
 1147: 		&& $submitonly ne 'all') {
 1148: 		foreach (@$partlist) {
 1149: 		    $gradeTable.='<td>&nbsp;</td>';
 1150: 		}
 1151: 	    } elsif ($submitonly eq 'queued') {
 1152: 		$gradeTable.='<td>&nbsp;</td>';
 1153: 	    }
 1154: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
 1155:     }
 1156: 
 1157:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
 1158:         '<input type="button" '.
 1159:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
 1160:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
 1161:     if ($ctr == 0) {
 1162: 	my $num_students=(scalar(keys(%$fullname)));
 1163: 	if ($num_students eq 0) {
 1164: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
 1165: 	} else {
 1166: 	    my $submissions='submissions';
 1167: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
 1168: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 1169: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 1170: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
 1171: 		&mt('No '.$submissions.' found for this resource for any students. ([quant,_1,student] checked for '.$submissions.')',
 1172: 		    $num_students).
 1173: 		'</span><br />';
 1174: 	}
 1175:     } elsif ($ctr == 1) {
 1176: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
 1177:     }
 1178:     $gradeTable.=&show_grading_menu_form($symb);
 1179:     $request->print($gradeTable);
 1180:     return '';
 1181: }
 1182: 
 1183: #---- Called from the listStudents routine
 1184: 
 1185: sub check_script {
 1186:     my ($form, $type)=@_;
 1187:     my $chkallscript='<script type="text/javascript">
 1188:     function checkall() {
 1189:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1190:             ele = document.forms.'.$form.'.elements[i];
 1191:             if (ele.name == "'.$type.'") {
 1192:             document.forms.'.$form.'.elements[i].checked=true;
 1193:                                        }
 1194:         }
 1195:     }
 1196: 
 1197:     function checksec() {
 1198:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1199:             ele = document.forms.'.$form.'.elements[i];
 1200:            string = document.forms.'.$form.'.chksec.value;
 1201:            if
 1202:           (ele.value.indexOf(":::SECTION"+string)>0) {
 1203:               document.forms.'.$form.'.elements[i].checked=true;
 1204:             }
 1205:         }
 1206:     }
 1207: 
 1208: 
 1209:     function uncheckall() {
 1210:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1211:             ele = document.forms.'.$form.'.elements[i];
 1212:             if (ele.name == "'.$type.'") {
 1213:             document.forms.'.$form.'.elements[i].checked=false;
 1214:                                        }
 1215:         }
 1216:     }
 1217: 
 1218: </script>'."\n";
 1219:     return $chkallscript;
 1220: }
 1221: 
 1222: sub check_buttons {
 1223:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
 1224:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
 1225:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
 1226:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
 1227:     return $buttons;
 1228: }
 1229: 
 1230: #     Displays the submissions for one student or a group of students
 1231: sub processGroup {
 1232:     my ($request)  = shift;
 1233:     my $ctr        = 0;
 1234:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1235:     my $total      = scalar(@stuchecked)-1;
 1236: 
 1237:     foreach my $student (@stuchecked) {
 1238: 	my ($uname,$udom,$fullname) = split(/:/,$student);
 1239: 	$env{'form.student'}        = $uname;
 1240: 	$env{'form.userdom'}        = $udom;
 1241: 	$env{'form.fullname'}       = $fullname;
 1242: 	&submission($request,$ctr,$total);
 1243: 	$ctr++;
 1244:     }
 1245:     return '';
 1246: }
 1247: 
 1248: #------------------------------------------------------------------------------------
 1249: #
 1250: #-------------------------- Next few routines handles grading by student, essentially
 1251: #                           handles essay response type problem/part
 1252: #
 1253: #--- Javascript to handle the submission page functionality ---
 1254: sub sub_page_js {
 1255:     my $request = shift;
 1256: 	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 1257:     $request->print(<<SUBJAVASCRIPT);
 1258: <script type="text/javascript" language="javascript">
 1259:     function updateRadio(formname,id,weight) {
 1260: 	var gradeBox = formname["GD_BOX"+id];
 1261: 	var radioButton = formname["RADVAL"+id];
 1262: 	var oldpts = formname["oldpts"+id].value;
 1263: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
 1264: 	gradeBox.value = pts;
 1265: 	var resetbox = false;
 1266: 	if (isNaN(pts) || pts < 0) {
 1267: 	    alert("$alertmsg"+pts);
 1268: 	    for (var i=0; i<radioButton.length; i++) {
 1269: 		if (radioButton[i].checked) {
 1270: 		    gradeBox.value = i;
 1271: 		    resetbox = true;
 1272: 		}
 1273: 	    }
 1274: 	    if (!resetbox) {
 1275: 		formtextbox.value = "";
 1276: 	    }
 1277: 	    return;
 1278: 	}
 1279: 
 1280: 	if (pts > weight) {
 1281: 	    var resp = confirm("You entered a value ("+pts+
 1282: 			       ") greater than the weight for the part. Accept?");
 1283: 	    if (resp == false) {
 1284: 		gradeBox.value = oldpts;
 1285: 		return;
 1286: 	    }
 1287: 	}
 1288: 
 1289: 	for (var i=0; i<radioButton.length; i++) {
 1290: 	    radioButton[i].checked=false;
 1291: 	    if (pts == i && pts != "") {
 1292: 		radioButton[i].checked=true;
 1293: 	    }
 1294: 	}
 1295: 	updateSelect(formname,id);
 1296: 	formname["stores"+id].value = "0";
 1297:     }
 1298: 
 1299:     function writeBox(formname,id,pts) {
 1300: 	var gradeBox = formname["GD_BOX"+id];
 1301: 	if (checkSolved(formname,id) == 'update') {
 1302: 	    gradeBox.value = pts;
 1303: 	} else {
 1304: 	    var oldpts = formname["oldpts"+id].value;
 1305: 	    gradeBox.value = oldpts;
 1306: 	    var radioButton = formname["RADVAL"+id];
 1307: 	    for (var i=0; i<radioButton.length; i++) {
 1308: 		radioButton[i].checked=false;
 1309: 		if (i == oldpts) {
 1310: 		    radioButton[i].checked=true;
 1311: 		}
 1312: 	    }
 1313: 	}
 1314: 	formname["stores"+id].value = "0";
 1315: 	updateSelect(formname,id);
 1316: 	return;
 1317:     }
 1318: 
 1319:     function clearRadBox(formname,id) {
 1320: 	if (checkSolved(formname,id) == 'noupdate') {
 1321: 	    updateSelect(formname,id);
 1322: 	    return;
 1323: 	}
 1324: 	gradeSelect = formname["GD_SEL"+id];
 1325: 	for (var i=0; i<gradeSelect.length; i++) {
 1326: 	    if (gradeSelect[i].selected) {
 1327: 		var selectx=i;
 1328: 	    }
 1329: 	}
 1330: 	var stores = formname["stores"+id];
 1331: 	if (selectx == stores.value) { return };
 1332: 	var gradeBox = formname["GD_BOX"+id];
 1333: 	gradeBox.value = "";
 1334: 	var radioButton = formname["RADVAL"+id];
 1335: 	for (var i=0; i<radioButton.length; i++) {
 1336: 	    radioButton[i].checked=false;
 1337: 	}
 1338: 	stores.value = selectx;
 1339:     }
 1340: 
 1341:     function checkSolved(formname,id) {
 1342: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
 1343: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
 1344: 	    if (!reply) {return "noupdate";}
 1345: 	    formname.overRideScore.value = 'yes';
 1346: 	}
 1347: 	return "update";
 1348:     }
 1349: 
 1350:     function updateSelect(formname,id) {
 1351: 	formname["GD_SEL"+id][0].selected = true;
 1352: 	return;
 1353:     }
 1354: 
 1355: //=========== Check that a point is assigned for all the parts  ============
 1356:     function checksubmit(formname,val,total,parttot) {
 1357: 	formname.gradeOpt.value = val;
 1358: 	if (val == "Save & Next") {
 1359: 	    for (i=0;i<=total;i++) {
 1360: 		for (j=0;j<parttot;j++) {
 1361: 		    var partid = formname["partid"+i+"_"+j].value;
 1362: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1363: 			var points = formname["GD_BOX"+i+"_"+partid].value;
 1364: 			if (points == "") {
 1365: 			    var name = formname["name"+i].value;
 1366: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
 1367: 			    var resp = confirm("You did not assign a score for "+studentID+
 1368: 					       ", part "+partid+". Continue?");
 1369: 			    if (resp == false) {
 1370: 				formname["GD_BOX"+i+"_"+partid].focus();
 1371: 				return false;
 1372: 			    }
 1373: 			}
 1374: 		    }
 1375: 		}
 1376: 	    }
 1377: 	}
 1378: 	if (val == "Grade Student") {
 1379: 	    formname.showgrading.value = "yes";
 1380: 	    if (formname.Status.value == "") {
 1381: 		formname.Status.value = "Active";
 1382: 	    }
 1383: 	    formname.studentNo.value = total;
 1384: 	}
 1385: 	formname.submit();
 1386:     }
 1387: 
 1388: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
 1389:     function checkSubmitPage(formname,total) {
 1390: 	noscore = new Array(100);
 1391: 	var ptr = 0;
 1392: 	for (i=1;i<total;i++) {
 1393: 	    var partid = formname["q_"+i].value;
 1394: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1395: 		var points = formname["GD_BOX"+i+"_"+partid].value;
 1396: 		var status = formname["solved"+i+"_"+partid].value;
 1397: 		if (points == "" && status != "correct_by_student") {
 1398: 		    noscore[ptr] = i;
 1399: 		    ptr++;
 1400: 		}
 1401: 	    }
 1402: 	}
 1403: 	if (ptr != 0) {
 1404: 	    var sense = ptr == 1 ? ": " : "s: ";
 1405: 	    var prolist = "";
 1406: 	    if (ptr == 1) {
 1407: 		prolist = noscore[0];
 1408: 	    } else {
 1409: 		var i = 0;
 1410: 		while (i < ptr-1) {
 1411: 		    prolist += noscore[i]+", ";
 1412: 		    i++;
 1413: 		}
 1414: 		prolist += "and "+noscore[i];
 1415: 	    }
 1416: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
 1417: 	    if (resp == false) {
 1418: 		return false;
 1419: 	    }
 1420: 	}
 1421: 
 1422: 	formname.submit();
 1423:     }
 1424: </script>
 1425: SUBJAVASCRIPT
 1426: }
 1427: 
 1428: #--- javascript for essay type problem --
 1429: sub sub_page_kw_js {
 1430:     my $request = shift;
 1431:     my $iconpath = $request->dir_config('lonIconsURL');
 1432:     &commonJSfunctions($request);
 1433: 
 1434:     my $inner_js_msg_central=<<INNERJS;
 1435:     <script text="text/javascript">
 1436:     function checkInput() {
 1437:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
 1438:       var nmsg   = opener.document.SCORE.savemsgN.value;
 1439:       var usrctr = document.msgcenter.usrctr.value;
 1440:       var newval = opener.document.SCORE["newmsg"+usrctr];
 1441:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
 1442: 
 1443:       var msgchk = "";
 1444:       if (document.msgcenter.subchk.checked) {
 1445:          msgchk = "msgsub,";
 1446:       }
 1447:       var includemsg = 0;
 1448:       for (var i=1; i<=nmsg; i++) {
 1449:           var opnmsg = opener.document.SCORE["savemsg"+i];
 1450:           var frmmsg = document.msgcenter["msg"+i];
 1451:           opnmsg.value = opener.checkEntities(frmmsg.value);
 1452:           var showflg = opener.document.SCORE["shownOnce"+i];
 1453:           showflg.value = "1";
 1454:           var chkbox = document.msgcenter["msgn"+i];
 1455:           if (chkbox.checked) {
 1456:              msgchk += "savemsg"+i+",";
 1457:              includemsg = 1;
 1458:           }
 1459:       }
 1460:       if (document.msgcenter.newmsgchk.checked) {
 1461:          msgchk += "newmsg"+usrctr;
 1462:          includemsg = 1;
 1463:       }
 1464:       imgformname = opener.document.SCORE["mailicon"+usrctr];
 1465:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
 1466:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
 1467:       includemsg.value = msgchk;
 1468: 
 1469:       self.close()
 1470: 
 1471:     }
 1472:     </script>
 1473: INNERJS
 1474: 
 1475:     my $inner_js_highlight_central=<<INNERJS;
 1476:  <script type="text/javascript">
 1477:     function updateChoice(flag) {
 1478:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
 1479:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
 1480:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
 1481:       opener.document.SCORE.refresh.value = "on";
 1482:       if (opener.document.SCORE.keywords.value!=""){
 1483:          opener.document.SCORE.submit();
 1484:       }
 1485:       self.close()
 1486:     }
 1487: </script>
 1488: INNERJS
 1489: 
 1490:     my $start_page_msg_central = 
 1491:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 1492: 				       {'js_ready'  => 1,
 1493: 					'only_body' => 1,
 1494: 					'bgcolor'   =>'#FFFFFF',});
 1495:     my $end_page_msg_central = 
 1496: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1497: 
 1498: 
 1499:     my $start_page_highlight_central = 
 1500:         &Apache::loncommon::start_page('Highlight Central',
 1501: 				       $inner_js_highlight_central,
 1502: 				       {'js_ready'  => 1,
 1503: 					'only_body' => 1,
 1504: 					'bgcolor'   =>'#FFFFFF',});
 1505:     my $end_page_highlight_central = 
 1506: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1507: 
 1508:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
 1509:     $docopen=~s/^document\.//;
 1510:     my %lt = &Apache::lonlocal::texthash(
 1511:                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
 1512:                 plse => 'Please select a word or group of words from document and then click this link.',
 1513:                 adds => 'Add selection to keyword list? Edit if desired.',
 1514:                 comp => 'Compose Message for: ',
 1515:                 incl => 'Include',
 1516:                 type => 'Type',
 1517:                 subj => 'Subject',
 1518:                 mesa => 'Message',
 1519:                 new  => 'New',
 1520:                 save => 'Save',
 1521:                 canc => 'Cancel',
 1522:                 kehi => 'Keyword Highlight Options',
 1523:                 txtc => 'Text Color',
 1524:                 font => 'Font Size',
 1525:                 fnst => 'Font Style',
 1526:                 col1 => 'red',
 1527:                 col2 => 'green',
 1528:                 col3 => 'blue',
 1529:                 siz1 => 'normal',
 1530:                 siz2 => '+1',
 1531:                 siz3 => '+2',
 1532:                 sty1 => 'normal',
 1533:                 sty2 => 'italic',
 1534:                 sty3 => 'bold',
 1535:              );
 1536:     $request->print(<<SUBJAVASCRIPT);
 1537: <script type="text/javascript" language="javascript">
 1538: 
 1539: //===================== Show list of keywords ====================
 1540:   function keywords(formname) {
 1541:     var nret = prompt("$lt{'keyw'}",formname.keywords.value);
 1542:     if (nret==null) return;
 1543:     formname.keywords.value = nret;
 1544: 
 1545:     if (formname.keywords.value != "") {
 1546: 	formname.refresh.value = "on";
 1547: 	formname.submit();
 1548:     }
 1549:     return;
 1550:   }
 1551: 
 1552: //===================== Script to view submitted by ==================
 1553:   function viewSubmitter(submitter) {
 1554:     document.SCORE.refresh.value = "on";
 1555:     document.SCORE.NCT.value = "1";
 1556:     document.SCORE.unamedom0.value = submitter;
 1557:     document.SCORE.submit();
 1558:     return;
 1559:   }
 1560: 
 1561: //===================== Script to add keyword(s) ==================
 1562:   function getSel() {
 1563:     if (document.getSelection) txt = document.getSelection();
 1564:     else if (document.selection) txt = document.selection.createRange().text;
 1565:     else return;
 1566:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
 1567:     if (cleantxt=="") {
 1568: 	alert("$lt{'plse'}");
 1569: 	return;
 1570:     }
 1571:     var nret = prompt("$lt{'adds'}",cleantxt);
 1572:     if (nret==null) return;
 1573:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
 1574:     if (document.SCORE.keywords.value != "") {
 1575: 	document.SCORE.refresh.value = "on";
 1576: 	document.SCORE.submit();
 1577:     }
 1578:     return;
 1579:   }
 1580: 
 1581: //====================== Script for composing message ==============
 1582:    // preload images
 1583:    img1 = new Image();
 1584:    img1.src = "$iconpath/mailbkgrd.gif";
 1585:    img2 = new Image();
 1586:    img2.src = "$iconpath/mailto.gif";
 1587: 
 1588:   function msgCenter(msgform,usrctr,fullname) {
 1589:     var Nmsg  = msgform.savemsgN.value;
 1590:     savedMsgHeader(Nmsg,usrctr,fullname);
 1591:     var subject = msgform.msgsub.value;
 1592:     var msgchk = document.SCORE["includemsg"+usrctr].value;
 1593:     re = /msgsub/;
 1594:     var shwsel = "";
 1595:     if (re.test(msgchk)) { shwsel = "checked" }
 1596:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
 1597:     displaySubject(checkEntities(subject),shwsel);
 1598:     for (var i=1; i<=Nmsg; i++) {
 1599: 	var testmsg = "savemsg"+i+",";
 1600: 	re = new RegExp(testmsg,"g");
 1601: 	shwsel = "";
 1602: 	if (re.test(msgchk)) { shwsel = "checked" }
 1603: 	var message = document.SCORE["savemsg"+i].value;
 1604: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
 1605: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
 1606: 	                                   //any &lt; is already converted to <, etc. However, only once!!
 1607:     }
 1608:     newmsg = document.SCORE["newmsg"+usrctr].value;
 1609:     shwsel = "";
 1610:     re = /newmsg/;
 1611:     if (re.test(msgchk)) { shwsel = "checked" }
 1612:     newMsg(newmsg,shwsel);
 1613:     msgTail(); 
 1614:     return;
 1615:   }
 1616: 
 1617:   function checkEntities(strx) {
 1618:     if (strx.length == 0) return strx;
 1619:     var orgStr = ["&", "<", ">", '"']; 
 1620:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
 1621:     var counter = 0;
 1622:     while (counter < 4) {
 1623: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
 1624: 	counter++;
 1625:     }
 1626:     return strx;
 1627:   }
 1628: 
 1629:   function strReplace(strx, orgStr, newStr) {
 1630:     return strx.split(orgStr).join(newStr);
 1631:   }
 1632: 
 1633:   function savedMsgHeader(Nmsg,usrctr,fullname) {
 1634:     var height = 70*Nmsg+250;
 1635:     if (height > 600) {
 1636: 	height = 600;
 1637:     }
 1638:     var xpos = (screen.width-600)/2;
 1639:     xpos = (xpos < 0) ? '0' : xpos;
 1640:     var ypos = (screen.height-height)/2-30;
 1641:     ypos = (ypos < 0) ? '0' : ypos;
 1642: 
 1643:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars=yes,screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
 1644:     pWin.focus();
 1645:     pDoc = pWin.document;
 1646:     pDoc.$docopen;
 1647:     pDoc.write('$start_page_msg_central');
 1648: 
 1649:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
 1650:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
 1651:     pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'comp'}\"+fullname+\"<\\/span><\\/h3><br /><br />");
 1652: 
 1653:     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1654:     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1655:     pDoc.write("<td><b>$lt{'type'}<\\/b><\\/td><td><b>$lt{'incl'}<\\/b><\\/td><td><b>$lt{'mesa'}<\\/td><\\/tr>");
 1656: }
 1657:     function displaySubject(msg,shwsel) {
 1658:     pDoc = pWin.document;
 1659:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1660:     pDoc.write("<td>$lt{'subj'}<\\/td>");
 1661:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1662:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 1663: }
 1664: 
 1665:   function displaySavedMsg(ctr,msg,shwsel) {
 1666:     pDoc = pWin.document;
 1667:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1668:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
 1669:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1670:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 1671: }
 1672: 
 1673:   function newMsg(newmsg,shwsel) {
 1674:     pDoc = pWin.document;
 1675:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1676:     pDoc.write("<td align=\\"center\\">$lt{'new'}<\\/td>");
 1677:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1678:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 1679: }
 1680: 
 1681:   function msgTail() {
 1682:     pDoc = pWin.document;
 1683:     pDoc.write("<\\/table>");
 1684:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1685:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
 1686:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1687:     pDoc.write("<\\/form>");
 1688:     pDoc.write('$end_page_msg_central');
 1689:     pDoc.close();
 1690: }
 1691: 
 1692: //====================== Script for keyword highlight options ==============
 1693:   function kwhighlight() {
 1694:     var kwclr    = document.SCORE.kwclr.value;
 1695:     var kwsize   = document.SCORE.kwsize.value;
 1696:     var kwstyle  = document.SCORE.kwstyle.value;
 1697:     var redsel = "";
 1698:     var grnsel = "";
 1699:     var blusel = "";
 1700:     var txtcol1 = "$lt{'col1'}";
 1701:     var txtcol2 = "$lt{'col2'}";
 1702:     var txtcol3 = "$lt{'col3'}";
 1703:     var txtsiz1 = "$lt{'siz1'}";
 1704:     var txtsiz2 = "$lt{'siz2'}";
 1705:     var txtsiz3 = "$lt{'siz3'}";
 1706:     var txtsty1 = "$lt{'sty1'}";
 1707:     var txtsty2 = "$lt{'sty2'}";
 1708:     var txtsty3 = "$lt{'sty3'}";
 1709:     if (kwclr=="red")   {var redsel="checked='checked'"};
 1710:     if (kwclr=="green") {var grnsel="checked='checked'"};
 1711:     if (kwclr=="blue")  {var blusel="checked='checked'"};
 1712:     var sznsel = "";
 1713:     var sz1sel = "";
 1714:     var sz2sel = "";
 1715:     if (kwsize=="0")  {var sznsel="checked='checked'"};
 1716:     if (kwsize=="+1") {var sz1sel="checked='checked'"};
 1717:     if (kwsize=="+2") {var sz2sel="checked='checked'"};
 1718:     var synsel = "";
 1719:     var syisel = "";
 1720:     var sybsel = "";
 1721:     if (kwstyle=="")    {var synsel="checked='checked'"};
 1722:     if (kwstyle=="<i>") {var syisel="checked='checked'"};
 1723:     if (kwstyle=="<b>") {var sybsel="checked='checked'"};
 1724:     highlightCentral();
 1725:     highlightbody('red',txtcol1,redsel,'0',txtsiz1,sznsel,'',txtsty1,synsel);
 1726:     highlightbody('green',txtcol2,grnsel,'+1',txtsiz2,sz1sel,'<i>',txtsty2,syisel);
 1727:     highlightbody('blue',txtcol3,blusel,'+2',txtsiz3,sz2sel,'<b>',txtsty3,sybsel);
 1728:     highlightend();
 1729:     return;
 1730:   }
 1731: 
 1732:   function highlightCentral() {
 1733: //    if (window.hwdWin) window.hwdWin.close();
 1734:     var xpos = (screen.width-400)/2;
 1735:     xpos = (xpos < 0) ? '0' : xpos;
 1736:     var ypos = (screen.height-330)/2-30;
 1737:     ypos = (ypos < 0) ? '0' : ypos;
 1738: 
 1739:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
 1740:     hwdWin.focus();
 1741:     var hDoc = hwdWin.document;
 1742:     hDoc.$docopen;
 1743:     hDoc.write('$start_page_highlight_central');
 1744:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
 1745:     hDoc.write("<h1>$lt{'kehi'}<\\/h1>");
 1746: 
 1747:     hDoc.write('<table border="0" width="100%"><tr style="background-color:#A1D676">');
 1748:     hDoc.write("<th>$lt{'txtc'}<\\/th><th>$lt{'font'}<\\/th><th>$lt{'fnst'}<\\/th><\\/tr>");
 1749:   }
 1750: 
 1751:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
 1752:     var hDoc = hwdWin.document;
 1753:     hDoc.write("<tr>");
 1754:     hDoc.write("<td align=\\"left\\">");
 1755:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+" \\/>&nbsp;"+clrtxt+"<\\/td>");
 1756:     hDoc.write("<td align=\\"left\\">");
 1757:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+" \\/>&nbsp;"+sztxt+"<\\/td>");
 1758:     hDoc.write("<td align=\\"left\\">");
 1759:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+" \\/>&nbsp;"+sytxt+"<\\/td>");
 1760:     hDoc.write("<\\/tr>");
 1761:   }
 1762: 
 1763:   function highlightend() { 
 1764:     var hDoc = hwdWin.document;
 1765:     hDoc.write("<\\/table><br \\/>");
 1766:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\" \\/>&nbsp;&nbsp;");
 1767:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\" \\/><br /><br />");
 1768:     hDoc.write("<\\/form>");
 1769:     hDoc.write('$end_page_highlight_central');
 1770:     hDoc.close();
 1771:   }
 1772: 
 1773: </script>
 1774: SUBJAVASCRIPT
 1775: }
 1776: 
 1777: sub get_increment {
 1778:     my $increment = $env{'form.increment'};
 1779:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
 1780:         $increment != .1) {
 1781:         $increment = 1;
 1782:     }
 1783:     return $increment;
 1784: }
 1785: 
 1786: sub gradeBox_start {
 1787:     return (
 1788:         &Apache::loncommon::start_data_table()
 1789:        .&Apache::loncommon::start_data_table_header_row()
 1790:        .'<th>'.&mt('Part').'</th>'
 1791:        .'<th>'.&mt('Points').'</th>'
 1792:        .'<th>&nbsp;</th>'
 1793:        .'<th>'.&mt('Assign Grade').'</th>'
 1794:        .'<th>'.&mt('Weight').'</th>'
 1795:        .'<th>'.&mt('Grade Status').'</th>'
 1796:        .&Apache::loncommon::end_data_table_header_row()
 1797:     );
 1798: }
 1799: 
 1800: sub gradeBox_end {
 1801:     return (
 1802:         &Apache::loncommon::end_data_table()
 1803:     );
 1804: }
 1805: #--- displays the grading box, used in essay type problem and grading by page/sequence
 1806: sub gradeBox {
 1807:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
 1808:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1809: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 1810:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
 1811:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
 1812:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
 1813:     $wgt       = ($wgt > 0 ? $wgt : '1');
 1814:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 1815: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
 1816:     my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
 1817:     my $display_part= &get_display_part($partid,$symb);
 1818:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 1819: 				       [$partid]);
 1820:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
 1821:     if ($last_resets{$partid}) {
 1822:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
 1823:     }
 1824:     my $result=&Apache::loncommon::start_data_table_row();
 1825:     my $ctr = 0;
 1826:     my $thisweight = 0;
 1827:     my $increment = &get_increment();
 1828: 
 1829:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
 1830:     while ($thisweight<=$wgt) {
 1831: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
 1832:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
 1833: 	    $thisweight.')" value="'.$thisweight.'" '.
 1834: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
 1835: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 1836:         $thisweight += $increment;
 1837: 	$ctr++;
 1838:     }
 1839:     $radio.='</tr></table>';
 1840: 
 1841:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
 1842: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
 1843: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
 1844: 	$wgt.')" /></td>'."\n";
 1845:     $line.='<td>/'.$wgt.' '.$wgtmsg.
 1846: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
 1847: 	' </td>'."\n";
 1848:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
 1849: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
 1850:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
 1851: 	$line.='<option></option>'.
 1852: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
 1853:     } else {
 1854: 	$line.='<option selected="selected"></option>'.
 1855: 	    '<option value="excused" >'.&mt('excused').'</option>';
 1856:     }
 1857:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
 1858: 
 1859: 
 1860:     $result .= 
 1861: 	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
 1862:     $result.=&Apache::loncommon::end_data_table_row().'<td colspan="6">';
 1863:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 1864: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 1865: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
 1866: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
 1867:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
 1868:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
 1869:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
 1870:         $aggtries.'" />'."\n";
 1871:     my $res_error;
 1872:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
 1873:     $result.='</td>'.&Apache::loncommon::end_data_table_row();
 1874:     if ($res_error) {
 1875:         return &navmap_errormsg();
 1876:     }
 1877:     return $result;
 1878: }
 1879: 
 1880: sub handback_box {
 1881:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error) = @_;
 1882:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
 1883:     my (@respids);
 1884:     my @part_response_id = &flatten_responseType($responseType);
 1885:     foreach my $part_response_id (@part_response_id) {
 1886:     	my ($part,$resp) = @{ $part_response_id };
 1887:         if ($part eq $partid) {
 1888:             push(@respids,$resp);
 1889:         }
 1890:     }
 1891:     my $result;
 1892:     foreach my $respid (@respids) {
 1893: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 1894: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 1895: 	next if (!@$files);
 1896: 	my $file_counter = 0;
 1897: 	foreach my $file (@$files) {
 1898: 	    if ($file =~ /\/portfolio\//) {
 1899:                 $file_counter++;
 1900:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
 1901:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
 1902:     	        $file_disp = "$name.$ext";
 1903:     	        $file = $file_path.$file_disp;
 1904:     	        $result.=&mt('Return commented version of [_1] to student.',
 1905:     			 '<span class="LC_filename">'.$file_disp.'</span>');
 1906:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
 1907:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
 1908: 	    }
 1909: 	}
 1910:         if ($file_counter) {
 1911:             $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
 1912:                        '<span class="LC_info">'.
 1913:                        '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
 1914:         }
 1915:     }
 1916:     return $result;    
 1917: }
 1918: 
 1919: sub show_problem {
 1920:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
 1921:     my $rendered;
 1922:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
 1923:     &Apache::lonxml::remember_problem_counter();
 1924:     if ($mode eq 'both' or $mode eq 'text') {
 1925: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
 1926: 						       $env{'request.course.id'},
 1927: 						       undef,\%form);
 1928:     }
 1929:     if ($removeform) {
 1930: 	$rendered=~s|<form(.*?)>||g;
 1931: 	$rendered=~s|</form>||g;
 1932: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
 1933:     }
 1934:     my $companswer;
 1935:     if ($mode eq 'both' or $mode eq 'answer') {
 1936: 	&Apache::lonxml::restore_problem_counter();
 1937: 	$companswer=
 1938: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
 1939: 						    $env{'request.course.id'},
 1940: 						    %form);
 1941:     }
 1942:     if ($removeform) {
 1943: 	$companswer=~s|<form(.*?)>||g;
 1944: 	$companswer=~s|</form>||g;
 1945: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
 1946:     }
 1947:     my $renderheading = &mt('View of the problem');
 1948:     my $answerheading = &mt('Correct answer');
 1949:     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
 1950:         my $stu_fullname = $env{'form.fullname'};
 1951:         if ($stu_fullname eq '') {
 1952:             $stu_fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
 1953:         }
 1954:         my $forwhom = &nameUserString(undef,$stu_fullname,$uname,$udom);
 1955:         if ($forwhom ne '') {
 1956:             $renderheading = &mt('View of the problem for[_1]',$forwhom);
 1957:             $answerheading = &mt('Correct answer for[_1]',$forwhom);
 1958:         }
 1959:     }
 1960:     $rendered=
 1961:         '<div class="LC_Box">'
 1962:        .'<h3 class="LC_hcell">'.$renderheading.'</h3>'
 1963:        .$rendered
 1964:        .'</div>';
 1965:     $companswer=
 1966:         '<div class="LC_Box">'
 1967:        .'<h3 class="LC_hcell">'.$answerheading.'</h3>'
 1968:        .$companswer
 1969:        .'</div>';
 1970:     my $result;
 1971:     if ($mode eq 'both') {
 1972:         $result=$rendered.$companswer;
 1973:     } elsif ($mode eq 'text') {
 1974:         $result=$rendered;
 1975:     } elsif ($mode eq 'answer') {
 1976:         $result=$companswer;
 1977:     }
 1978:     return $result;
 1979: }
 1980: 
 1981: sub files_exist {
 1982:     my ($r, $symb) = @_;
 1983:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1984: 
 1985:     foreach my $student (@students) {
 1986:         my ($uname,$udom,$fullname) = split(/:/,$student);
 1987:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 1988: 					      $udom,$uname);
 1989:         my ($string,$timestamp)= &get_last_submission(\%record);
 1990:         foreach my $submission (@$string) {
 1991:             my ($partid,$respid) =
 1992: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 1993:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
 1994: 					   \%record);
 1995:             return 1 if (@$files);
 1996:         }
 1997:     }
 1998:     return 0;
 1999: }
 2000: 
 2001: sub download_all_link {
 2002:     my ($r,$symb) = @_;
 2003:     my $all_students = 
 2004: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
 2005: 
 2006:     my $parts =
 2007: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
 2008: 
 2009:     my $identifier = &Apache::loncommon::get_cgi_id();
 2010:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
 2011:                              'cgi.'.$identifier.'.symb' => $symb,
 2012:                              'cgi.'.$identifier.'.parts' => $parts,});
 2013:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
 2014: 	      &mt('Download All Submitted Documents').'</a>');
 2015:     return
 2016: }
 2017: 
 2018: sub build_section_inputs {
 2019:     my $section_inputs;
 2020:     if ($env{'form.section'} eq '') {
 2021:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
 2022:     } else {
 2023:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
 2024:         foreach my $section (@sections) {
 2025:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
 2026:         }
 2027:     }
 2028:     return $section_inputs;
 2029: }
 2030: 
 2031: # --------------------------- show submissions of a student, option to grade 
 2032: sub submission {
 2033:     my ($request,$counter,$total) = @_;
 2034:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
 2035:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
 2036:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 2037:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 2038:     my ($symb) = &get_symb($request); 
 2039:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 2040: 
 2041:     if (!&canview($usec)) {
 2042:         $request->print(
 2043:             '<span class="LC_warning">'.
 2044:             &mt('Unable to view requested student.').
 2045:             ' '.&mt('([_1] in section [_2] in course id [_3])',
 2046:                         $uname.':'.$udom,$usec,$env{'request.course.id'}).
 2047:             '</span>');
 2048: 	$request->print(&show_grading_menu_form($symb));
 2049: 	return;
 2050:     }
 2051: 
 2052:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
 2053:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
 2054:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
 2055:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 2056:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 2057: 	'" src="'.$request->dir_config('lonIconsURL').
 2058: 	'/check.gif" height="16" border="0" />';
 2059: 
 2060:     # header info
 2061:     if ($counter == 0) {
 2062: 	&sub_page_js($request);
 2063: 	&sub_page_kw_js($request) if ($env{'form.handgrade'} eq 'yes');
 2064: 	$env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
 2065: 	    &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
 2066: 	if ($env{'form.handgrade'} eq 'yes' && &files_exist($request, $symb)) {
 2067: 	    &download_all_link($request, $symb);
 2068: 	}
 2069: 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
 2070: 			'<h4>&nbsp;'.&mt('[_1]Resource: [_2]','<b>','</b>'.$env{'form.probTitle'}).'</h4>'."\n");
 2071: 
 2072: 	# option to display problem, only once else it cause problems 
 2073:         # with the form later since the problem has a form.
 2074: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
 2075: 	    my $mode;
 2076: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
 2077: 		$mode='both';
 2078: 	    } elsif ($env{'form.vProb'} eq 'yes') {
 2079: 		$mode='text';
 2080: 	    } elsif ($env{'form.vAns'} eq 'yes') {
 2081: 		$mode='answer';
 2082: 	    }
 2083: 	    &Apache::lonxml::clear_problem_counter();
 2084: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 2085: 	}
 2086: 
 2087: 	# kwclr is the only variable that is guaranteed not to be blank 
 2088:         # if this subroutine has been called once.
 2089: 	my %keyhash = ();
 2090: 	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
 2091: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 2092: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 2093: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
 2094: 
 2095: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2096: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 2097: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 2098: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 2099: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 2100: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
 2101: 		$keyhash{$symb.'_subject'} : $env{'form.probTitle'};
 2102: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 2103: 	}
 2104: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 2105: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 2106: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
 2107: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
 2108: 			'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 2109: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
 2110: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
 2111: 			'<input type="hidden" name="probTitle"  value="'.$env{'form.probTitle'}.'" />'."\n".
 2112: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
 2113: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
 2114: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
 2115: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 2116: 			'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" />'."\n".
 2117: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 2118: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 2119: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
 2120: 			&build_section_inputs().
 2121: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 2122: 			'<input type="hidden" name="handgrade"  value="'.$env{'form.handgrade'}.'" />'."\n".
 2123: 			'<input type="hidden" name="NCT"'.
 2124: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
 2125: 	if ($env{'form.handgrade'} eq 'yes') {
 2126: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 2127: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 2128: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
 2129: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
 2130: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
 2131: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
 2132: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
 2133: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
 2134: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
 2135: 	    }
 2136: 	}
 2137: 	
 2138: 	my ($cts,$prnmsg) = (1,'');
 2139: 	while ($cts <= $env{'form.savemsgN'}) {
 2140: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
 2141: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
 2142: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
 2143: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
 2144: 		'" />'."\n".
 2145: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
 2146: 	    $cts++;
 2147: 	}
 2148: 	$request->print($prnmsg);
 2149: 
 2150: 	if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
 2151: 
 2152:             my %lt = &Apache::lonlocal::texthash(
 2153:                           keyh => 'Keyword Highlighting for Essays',
 2154:                           keyw => 'Keyword Options',
 2155:                           list => 'List',
 2156:                           past => 'Paste Selection to List',
 2157:                           high => 'Highlight Attribute',
 2158:                      );
 2159: #
 2160: # Print out the keyword options line
 2161: #
 2162:             $request->print(
 2163:                 '<div class="LC_columnSection">'
 2164:                .'<fieldset><legend>'.$lt{'keyh'}.'</legend>'
 2165:                .&Apache::lonhtmlcommon::funclist_from_array(
 2166:                     ['<a href="javascript:keywords(document.SCORE);" target="_self">'.$lt{'list'}.'</a>',
 2167:                      '<a href="#" onmousedown="javascript:getSel(); return false"
 2168:  class="page">'.$lt{'past'}.'</a>',
 2169:                      '<a href="javascript:kwhighlight();" target="_self">'.$lt{'high'}.'</a>'],
 2170:                     {legend => $lt{'keyw'}})
 2171:                .'</fieldset></div>'
 2172:             );
 2173: 
 2174: #
 2175: # Load the other essays for similarity check
 2176: #
 2177:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
 2178: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 2179: 	    $apath=&escape($apath);
 2180: 	    $apath=~s/\W/\_/gs;
 2181:             &init_old_essays($symb,$apath,$adom,$aname);
 2182:         }
 2183:     }
 2184: 
 2185: # This is where output for one specific student would start
 2186:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
 2187:     $request->print(
 2188:         "\n\n"
 2189:        .'<div class="LC_grade_show_user'.$add_class.'">'
 2190:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
 2191:        ."\n"
 2192:     );
 2193: 
 2194:     # Show additional functions if allowed
 2195:     if ($perm{'vgr'}) {
 2196:         $request->print(
 2197:             &Apache::loncommon::track_student_link(
 2198:                 'View recent activity',
 2199:                 $uname,$udom,'check')
 2200:            .' '
 2201:         );
 2202:     }
 2203:     if ($perm{'opa'}) {
 2204:         $request->print(
 2205:             &Apache::loncommon::pprmlink(
 2206:                 &mt('Set/Change parameters'),
 2207:                 $uname,$udom,$symb,'check'));
 2208:     }
 2209: 
 2210:     # Show Problem
 2211:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
 2212: 	my $mode;
 2213: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
 2214: 	    $mode='both';
 2215: 	} elsif ($env{'form.vProb'} eq 'all' ) {
 2216: 	    $mode='text';
 2217: 	} elsif ($env{'form.vAns'} eq 'all') {
 2218: 	    $mode='answer';
 2219: 	}
 2220: 	&Apache::lonxml::clear_problem_counter();
 2221: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
 2222:     }
 2223: 
 2224:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2225:     my $res_error;
 2226:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2227:     if ($res_error) {
 2228:         $request->print(&navmap_errormsg());
 2229:         return;
 2230:     }
 2231: 
 2232:     # Display student info
 2233:     $request->print(($counter == 0 ? '' : '<br />'));
 2234: 
 2235:     my $result='<div class="LC_Box">'
 2236:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
 2237:     $result.='<input type="hidden" name="name'.$counter.
 2238:              '" value="'.$env{'form.fullname'}.'" />'."\n";
 2239:     if ($env{'form.handgrade'} eq 'no') {
 2240:         $result.='<p class="LC_info">'
 2241:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
 2242:                 ."</p>\n";
 2243:     }
 2244: 
 2245:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
 2246:     my $fullname;
 2247:     my $col_fullnames = [];
 2248:     if ($env{'form.handgrade'} eq 'yes') {
 2249: 	(my $sub_result,$fullname,$col_fullnames)=
 2250: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 2251: 				 $counter);
 2252: 	$result.=$sub_result;
 2253:     }
 2254:     $request->print($result."\n");
 2255: 
 2256:     # print student answer/submission
 2257:     # Options are (1) Handgraded submission only
 2258:     #             (2) Last submission, includes submission that is not handgraded 
 2259:     #                  (for multi-response type part)
 2260:     #             (3) Last submission plus the parts info
 2261:     #             (4) The whole record for this student
 2262: 
 2263: 	my ($string,$timestamp)= &get_last_submission(\%record);
 2264: 	
 2265: 	my $lastsubonly;
 2266: 
 2267:         if ($$timestamp eq '') {
 2268:             $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
 2269:         } else {
 2270:             $lastsubonly =
 2271:                 '<div class="LC_grade_submissions_body">'
 2272:                .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
 2273: 
 2274: 	    my %seenparts;
 2275: 	    my @part_response_id = &flatten_responseType($responseType);
 2276: 	    foreach my $part (@part_response_id) {
 2277: 		next if ($env{'form.lastSub'} eq 'hdgrade' 
 2278: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 2279: 
 2280: 		my ($partid,$respid) = @{ $part };
 2281: 		my $display_part=&get_display_part($partid,$symb);
 2282: 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 2283: 		    if (exists($seenparts{$partid})) { next; }
 2284: 		    $seenparts{$partid}=1;
 2285:                     $request->print(
 2286:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2287:                         ' <b>'.&mt('Collaborative submission by: [_1]',
 2288:                                    '<a href="javascript:viewSubmitter(\''.
 2289:                                    $env{"form.$uname:$udom:$partid:submitted_by"}.
 2290:                                    '\');" target="_self">'.
 2291:                                    $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
 2292:                         '<br />');
 2293: 		    next;
 2294: 		}
 2295: 		my $responsetype = $responseType->{$partid}->{$respid};
 2296: 		if (!exists($record{"resource.$partid.$respid.submission"})) {
 2297:                     $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
 2298:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2299:                         ' <span class="LC_internal_info">'.
 2300:                         '('.&mt('Response ID: [_1]',$respid).')'.
 2301:                         '</span>&nbsp; &nbsp;'.
 2302: 			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 2303: 		    next;
 2304: 		}
 2305: 		foreach my $submission (@$string) {
 2306: 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2307: 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
 2308: 		    my ($ressub,$hide,$draft,$subval) = split(/:/,$submission,4);
 2309: 		    # Similarity check
 2310: 		    my $similar='';
 2311:                     my ($type,$trial,$rndseed);
 2312:                     if ($hide eq 'rand') {
 2313:                         $type = 'randomizetry';
 2314:                         $trial = $record{"resource.$partid.tries"};
 2315:                         $rndseed = $record{"resource.$partid.rndseed"};
 2316:                     }
 2317: 		    if ($env{'form.checkPlag'}) {
 2318: 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 2319: 			    &most_similar($uname,$udom,$symb,$subval);
 2320: 			if ($osim) {
 2321: 			    $osim=int($osim*100.0);
 2322: 			    my %old_course_desc = 
 2323: 				&Apache::lonnet::coursedescription($ocrsid,
 2324: 								   {'one_time' => 1});
 2325: 
 2326:                             if ($hide eq 'anon') {
 2327:                                 $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
 2328:                                          &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
 2329:                             } else {
 2330: 			        $similar="<hr /><h3><span class=\"LC_warning\">".
 2331: 				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
 2332: 				        $osim,
 2333: 				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 2334: 				        $old_course_desc{'description'},
 2335: 				        $old_course_desc{'num'},
 2336: 				        $old_course_desc{'domain'}).
 2337: 				    '</span></h3><blockquote><i>'.
 2338: 				    &keywords_highlight($oessay).
 2339: 				    '</i></blockquote><hr />';
 2340:                             }
 2341: 			}
 2342: 		    }
 2343: 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
 2344:                                          undef,$type,$trial,$rndseed);
 2345:                     if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' &&
 2346:                          $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 2347: 			my $display_part=&get_display_part($partid,$symb);
 2348:                         $lastsubonly.='<div class="LC_grade_submission_part">'.
 2349:                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2350:                             ' <span class="LC_internal_info">'.
 2351:                             '('.&mt('Response ID: [_1]',$respid).')'.
 2352:                             '</span>&nbsp; &nbsp;';
 2353: 			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
 2354: 			if (@$files) {
 2355:                             if ($hide eq 'anon') {
 2356:                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
 2357:                             } else {
 2358:                                 $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
 2359:                                             .'<br /><span class="LC_warning">';
 2360:                                 if(@$files == 1) {
 2361:                                     $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
 2362:                                 } else {
 2363:                                     $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
 2364:                                 }
 2365:                                 $lastsubonly .= '</span>';
 2366: 
 2367:                                 foreach my $file (@$files) {
 2368:                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
 2369:                                     $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
 2370:                                 }
 2371:                             }
 2372: 			    $lastsubonly.='<br />';
 2373: 			}
 2374:                         if ($hide eq 'anon') {
 2375:                             $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
 2376:                         } else {
 2377: 			    $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>';
 2378:                             if ($draft) {
 2379:                                 $lastsubonly.= ' <span class="LC_warning">'.&mt('Draft Copy').'</span>';
 2380:                             }
 2381:                             $subval =
 2382: 			        &cleanRecord($subval,$responsetype,$symb,$partid,
 2383: 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
 2384:                             if ($responsetype eq 'essay') {
 2385:                                 $subval =~ s{\n}{<br />}g;
 2386:                             }
 2387:                             $lastsubonly.=$subval."\n";
 2388:                         }
 2389: 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 2390: 			$lastsubonly.='</div>';
 2391: 		    }
 2392: 		}
 2393: 	    }
 2394: 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 2395: 	}
 2396: 	$request->print($lastsubonly);
 2397:    if ($env{'form.lastSub'} eq 'datesub') {
 2398: 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 2399: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
 2400:     }
 2401:     if ($env{'form.lastSub'} =~ /^(last|all)$/) {
 2402:         my $identifier = (&canmodify($usec)? $counter : '');
 2403: 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 2404: 								 $env{'request.course.id'},
 2405: 								 $last,'.submission',
 2406: 								 'Apache::grades::keywords_highlight',
 2407:                                                                  $usec,$identifier));
 2408:     }
 2409: 
 2410:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
 2411: 	.$udom.'" />'."\n");
 2412:     # return if view submission with no grading option
 2413:     if ($env{'form.showgrading'} eq '' || (!&canmodify($usec))) {
 2414: 	my $toGrade.='<input type="button" value="Grade Student" '.
 2415: 	    'onclick="javascript:checksubmit(this.form,\'Grade Student\',\''
 2416: 	    .$counter.'\');" target="_self" /> &nbsp;'."\n" if (&canmodify($usec));
 2417: 	$toGrade.='</div>'."\n";
 2418: 	if (($env{'form.command'} eq 'submission') || 
 2419: 	    ($env{'form.command'} eq 'processGroup' && $counter == $total)) {
 2420: 	    $toGrade.='</form>'.&show_grading_menu_form($symb); 
 2421: 	}
 2422: 	$request->print($toGrade);
 2423: 	return;
 2424:     } else {
 2425: 	$request->print('</div>'."\n");
 2426:     }
 2427: 
 2428:     # essay grading message center
 2429:     if ($env{'form.handgrade'} eq 'yes') {
 2430: 	my $result='<div class="LC_grade_message_center">';
 2431:     
 2432: 	$result.='<div class="LC_grade_message_center_header">'.
 2433: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
 2434: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
 2435: 	my $msgfor = $givenn.' '.$lastname;
 2436: 	if (scalar(@$col_fullnames) > 0) {
 2437: 	    my $lastone = pop(@$col_fullnames);
 2438: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
 2439: 	}
 2440: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
 2441: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
 2442: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 2443: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 2444: 	    ',\''.$msgfor.'\');" target="_self">'.
 2445: 	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
 2446: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
 2447: 	    ' <img src="'.$request->dir_config('lonIconsURL').
 2448: 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 2449: 	    '<br />&nbsp;('.
 2450: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 2451: 	$result.='</div></div>';
 2452: 	$request->print($result);
 2453:     }
 2454: 
 2455:     my %seen = ();
 2456:     my @partlist;
 2457:     my @gradePartRespid;
 2458:     my @part_response_id = &flatten_responseType($responseType);
 2459:     $request->print(
 2460:         '<div class="LC_Box">'
 2461:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
 2462:     );
 2463:     $request->print(&gradeBox_start());
 2464:     foreach my $part_response_id (@part_response_id) {
 2465:     	my ($partid,$respid) = @{ $part_response_id };
 2466: 	my $part_resp = join('_',@{ $part_response_id });
 2467: 	next if ($seen{$partid} > 0);
 2468: 	$seen{$partid}++;
 2469: 	next if ($$handgrade{$part_resp} ne 'yes' 
 2470: 		 && $env{'form.lastSub'} eq 'hdgrade');
 2471: 	push(@partlist,$partid);
 2472: 	push(@gradePartRespid,$partid.'.'.$respid);
 2473: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
 2474:     }
 2475:     $request->print(&gradeBox_end()); # </div>
 2476:     $request->print('</div>');
 2477: 
 2478:     $request->print('<div class="LC_grade_info_links">');
 2479:     $request->print('</div>');
 2480: 
 2481:     $result='<input type="hidden" name="partlist'.$counter.
 2482: 	'" value="'.(join ":",@partlist).'" />'."\n";
 2483:     $result.='<input type="hidden" name="gradePartRespid'.
 2484: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
 2485:     my $ctr = 0;
 2486:     while ($ctr < scalar(@partlist)) {
 2487: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
 2488: 	    $partlist[$ctr].'" />'."\n";
 2489: 	$ctr++;
 2490:     }
 2491:     $request->print($result.''."\n");
 2492: 
 2493: # Done with printing info for one student
 2494: 
 2495:     $request->print('</div>');#LC_grade_show_user
 2496: 
 2497: 
 2498:     # print end of form
 2499:     if ($counter == $total) {
 2500:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
 2501: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
 2502: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
 2503: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
 2504: 	my $ntstu ='<select name="NTSTU">'.
 2505: 	    '<option>1</option><option>2</option>'.
 2506: 	    '<option>3</option><option>5</option>'.
 2507: 	    '<option>7</option><option>10</option></select>'."\n";
 2508: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
 2509: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
 2510:         $endform.=&mt('[_1]student(s)',$ntstu);
 2511: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
 2512: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
 2513: 	    '<input type="button" value="'.&mt('Next').'" '.
 2514: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
 2515:         $endform.='<span class="LC_warning">'.
 2516:                   &mt('(Next and Previous (student) do not save the scores.)').
 2517:                   '</span>'."\n" ;
 2518:         $endform.="<input type='hidden' value='".&get_increment().
 2519:             "' name='increment' />";
 2520: 	$endform.='</td></tr></table></form>';
 2521: 	$endform.=&show_grading_menu_form($symb);
 2522: 	$request->print($endform);
 2523:     }
 2524:     return '';
 2525: }
 2526: 
 2527: sub check_collaborators {
 2528:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
 2529:     my ($result,@col_fullnames);
 2530:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
 2531:     foreach my $part (keys(%$handgrade)) {
 2532: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
 2533: 					'.maxcollaborators',
 2534: 					$symb,$udom,$uname);
 2535: 	next if ($ncol <= 0);
 2536: 	$part =~ s/\_/\./g;
 2537: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
 2538: 	my (@good_collaborators, @bad_collaborators);
 2539: 	foreach my $possible_collaborator
 2540: 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) { 
 2541: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
 2542: 	    next if ($possible_collaborator eq '');
 2543: 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
 2544: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
 2545: 	    next if ($co_name eq $uname && $co_dom eq $udom);
 2546: 	    # Doing this grep allows 'fuzzy' specification
 2547: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
 2548: 			       keys(%$classlist));
 2549: 	    if (! scalar(@matches)) {
 2550: 		push(@bad_collaborators, $possible_collaborator);
 2551: 	    } else {
 2552: 		push(@good_collaborators, @matches);
 2553: 	    }
 2554: 	}
 2555: 	if (scalar(@good_collaborators) != 0) {
 2556: 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
 2557: 	    foreach my $name (@good_collaborators) {
 2558: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
 2559: 		push(@col_fullnames, $givenn.' '.$lastname);
 2560: 		$result.='<li>'.$fullname->{$name}.'</li>';
 2561: 	    }
 2562: 	    $result.='</ol><br />'."\n";
 2563: 	    my ($part)=split(/\./,$part);
 2564: 	    $result.='<input type="hidden" name="collaborator'.$counter.
 2565: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
 2566: 		"\n";
 2567: 	}
 2568: 	if (scalar(@bad_collaborators) > 0) {
 2569: 	    $result.='<div class="LC_warning">';
 2570: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
 2571: 	    $result .= '</div>';
 2572: 	}         
 2573: 	if (scalar(@bad_collaborators > $ncol)) {
 2574: 	    $result .= '<div class="LC_warning">';
 2575: 	    $result .= &mt('This student has submitted too many '.
 2576: 		'collaborators.  Maximum is [_1].',$ncol);
 2577: 	    $result .= '</div>';
 2578: 	}
 2579:     }
 2580:     return ($result,$fullname,\@col_fullnames);
 2581: }
 2582: 
 2583: #--- Retrieve the last submission for all the parts
 2584: sub get_last_submission {
 2585:     my ($returnhash)=@_;
 2586:     my (@string,$timestamp,%lasthidden);
 2587:     if ($$returnhash{'version'}) {
 2588: 	my %lasthash=();
 2589: 	my ($version);
 2590: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
 2591: 	    foreach my $key (sort(split(/\:/,
 2592: 					$$returnhash{$version.':keys'}))) {
 2593: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
 2594: 		$timestamp = 
 2595: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 2596: 	    }
 2597: 	}
 2598:         my (%typeparts,%randombytry);
 2599:         my $showsurv = 
 2600:             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
 2601:         foreach my $key (sort(keys(%lasthash))) {
 2602:             if ($key =~ /\.type$/) {
 2603:                 if (($lasthash{$key} eq 'anonsurvey') || 
 2604:                     ($lasthash{$key} eq 'anonsurveycred') ||
 2605:                     ($lasthash{$key} eq 'randomizetry')) {
 2606:                     my ($ign,@parts) = split(/\./,$key);
 2607:                     pop(@parts);
 2608:                     my $id = join('.',@parts);
 2609:                     if ($lasthash{$key} eq 'randomizetry') {
 2610:                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
 2611:                     } else {
 2612:                         unless ($showsurv) {
 2613:                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
 2614:                         }
 2615:                     }
 2616:                     delete($lasthash{$key});
 2617:                 }
 2618:             }
 2619:         }
 2620:         my @hidden = keys(%typeparts);
 2621:         my @randomize = keys(%randombytry);
 2622: 	foreach my $key (keys(%lasthash)) {
 2623: 	    next if ($key !~ /\.submission$/);
 2624:             my $hide;
 2625:             if (@hidden) {
 2626:                 foreach my $id (@hidden) {
 2627:                     if ($key =~ /^\Q$id\E/) {
 2628:                         $hide = 'anon';
 2629:                         last;
 2630:                     }
 2631:                 }
 2632:             }
 2633:             unless ($hide) {
 2634:                 if (@randomize) {
 2635:                     foreach my $id (@randomize) {
 2636:                         if ($key =~ /^\Q$id\E/) {
 2637:                             $hide = 'rand';
 2638:                             last;
 2639:                         }
 2640:                     }
 2641:                 }
 2642:             }
 2643: 	    my ($partid,$foo) = split(/submission$/,$key);
 2644: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ? 1: 0;
 2645:             push(@string, join(':', $key, $hide, $draft, (
 2646:                 ref($lasthash{$key}) eq 'ARRAY' ?
 2647:                     join(',', @{$lasthash{$key}}) : $lasthash{$key}) ));
 2648: 	}
 2649:     }
 2650:     if (!@string) {
 2651: 	$string[0] =
 2652: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
 2653:     }
 2654:     return (\@string,\$timestamp);
 2655: }
 2656: 
 2657: #--- High light keywords, with style choosen by user.
 2658: sub keywords_highlight {
 2659:     my $string    = shift;
 2660:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
 2661:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
 2662:     (my $styleoff = $styleon) =~ s/\</\<\//;
 2663:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
 2664:     foreach my $keyword (@keylist) {
 2665: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
 2666:     }
 2667:     return $string;
 2668: }
 2669: 
 2670: # For Tasks provide a mechanism to display previous version for one specific student
 2671: 
 2672: sub show_previous_task_version {
 2673:     my ($request,$symb) = @_;
 2674:     if ($symb eq '') {
 2675:         $request->print(
 2676:             '<span class="LC_error">'.
 2677:             &mt('Unable to handle ambiguous references.').
 2678:             '</span>');
 2679:         return '';
 2680:     }
 2681:     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
 2682:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 2683:     if (!&canview($usec)) {
 2684:         $request->print('<span class="LC_warning">'.
 2685:                         &mt('Unable to view previous version for requested student.').
 2686:                         ' '.&mt('([_1] in section [_2] in course id [_3])',
 2687:                                 $uname.':'.$udom,$usec,$env{'request.course.id'}).
 2688:                         '</span>');
 2689:         return;
 2690:     }
 2691:     my $mode = 'both';
 2692:     my $isTask = ($symb =~/\.task$/);
 2693:     if ($isTask) {
 2694:         if ($env{'form.previousversion'} =~ /^\d+$/) {
 2695:             if ($env{'form.fullname'} eq '') {
 2696:                 $env{'form.fullname'} =
 2697:                     &Apache::loncommon::plainname($uname,$udom,'lastname');
 2698:             }
 2699:             my $probtitle=&Apache::lonnet::gettitle($symb);
 2700:             $request->print("\n\n".
 2701:                             '<div class="LC_grade_show_user">'.
 2702:                             '<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 2703:                             '</h2>'."\n");
 2704:             &Apache::lonxml::clear_problem_counter();
 2705:             $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,
 2706:                             {'previousversion' => $env{'form.previousversion'} }));
 2707:             $request->print("\n</div>");
 2708:         }
 2709:     }
 2710:     return;
 2711: }
 2712: 
 2713: sub choose_task_version_form {
 2714:     my ($symb,$uname,$udom,$nomenu) = @_;
 2715:     my $isTask = ($symb =~/\.task$/);
 2716:     my ($current,$version,$result,$js,$displayed,$rowtitle);
 2717:     if ($isTask) {
 2718:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 2719:                                               $udom,$uname);
 2720:         if (($record{'resource.0.version'} eq '') ||
 2721:             ($record{'resource.0.version'} < 2)) {
 2722:             return ($record{'resource.0.version'},
 2723:                     $record{'resource.0.version'},$result,$js);
 2724:         } else {
 2725:             $current = $record{'resource.0.version'};
 2726:         }
 2727:         if ($env{'form.previousversion'}) {
 2728:             $displayed = $env{'form.previousversion'};
 2729:             $rowtitle = &mt('Choose another version:')
 2730:         } else {
 2731:             $displayed = $current;
 2732:             $rowtitle = &mt('Show earlier version:');
 2733:         }
 2734:         $result = '<div class="LC_left_float">';
 2735:         my $list;
 2736:         my $numversions = 0;
 2737:         for (my $i=1; $i<=$record{'resource.0.version'}; $i++) {
 2738:             if ($i == $current) {
 2739:                 if (!$env{'form.previousversion'} || $nomenu) {
 2740:                     next;
 2741:                 } else {
 2742:                     $list .= '<option value="'.$i.'">'.&mt('Current').'</option>'."\n";
 2743:                     $numversions ++;
 2744:                 }
 2745:             } elsif (defined($record{'resource.'.$i.'.0.status'})) {
 2746:                 unless ($i == $env{'form.previousversion'}) {
 2747:                     $numversions ++;
 2748:                 }
 2749:                 $list .= '<option value="'.$i.'">'.$i.'</option>'."\n";
 2750:             }
 2751:         }
 2752:         if ($numversions) {
 2753:             $symb = &HTML::Entities::encode($symb,'<>"&');
 2754:             $result .=
 2755:                 '<form name="getprev" method="post" action=""'.
 2756:                 ' onsubmit="return previousVersion('."'$uname','$udom','$symb','$displayed'".');">'.
 2757:                 &Apache::loncommon::start_data_table().
 2758:                 &Apache::loncommon::start_data_table_row().
 2759:                 '<th align="left">'.$rowtitle.'</th>'.
 2760:                 '<td><select name="version">'.
 2761:                 '<option>'.&mt('Select').'</option>'.
 2762:                 $list.
 2763:                 '</select></td>'.
 2764:                 &Apache::loncommon::end_data_table_row();
 2765:             unless ($nomenu) {
 2766:                 $result .= &Apache::loncommon::start_data_table_row().
 2767:                 '<th align="left">'.&mt('Open in new window').'</th>'.
 2768:                 '<td><span class="LC_nobreak">'.
 2769:                 '<label><input type="radio" name="prevwin" value="1" />'.
 2770:                 &mt('Yes').'</label>'.
 2771:                 '<label><input type="radio" name="prevwin" value="0" checked="checked" />'.&mt('No').'</label>'.
 2772:                 '</span></td>'.
 2773:                 &Apache::loncommon::end_data_table_row();
 2774:             }
 2775:             $result .=
 2776:                 &Apache::loncommon::start_data_table_row().
 2777:                 '<th align="left">&nbsp;</th>'.
 2778:                 '<td>'.
 2779:                 '<input type="submit" name="prevsub" value="'.&mt('Display').'" />'.
 2780:                 '</td>'.
 2781:                 &Apache::loncommon::end_data_table_row().
 2782:                 &Apache::loncommon::end_data_table().
 2783:                 '</form>';
 2784:             $js = &previous_display_javascript($nomenu,$current);
 2785:         } elsif ($displayed && $nomenu) {
 2786:             $result .= '<a href="javascript:window.close()">'.&mt('Close window').'</a>';
 2787:         } else {
 2788:             $result .= &mt('No previous versions to show for this student');
 2789:         }
 2790:         $result .= '</div>';
 2791:     }
 2792:     return ($current,$displayed,$result,$js);
 2793: }
 2794: 
 2795: sub previous_display_javascript {
 2796:     my ($nomenu,$current) = @_;
 2797:     my $js = <<"JSONE";
 2798: <script type="text/javascript">
 2799: // <![CDATA[
 2800: function previousVersion(uname,udom,symb) {
 2801:     var current = '$current';
 2802:     var version = document.getprev.version.options[document.getprev.version.selectedIndex].value;
 2803:     var prevstr = new RegExp("^\\\\d+\$");
 2804:     if (!prevstr.test(version)) {
 2805:         return false;
 2806:     }
 2807:     var url = '';
 2808:     if (version == current) {
 2809:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=submission';
 2810:     } else {
 2811:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=versionsub&previousversion='+version;
 2812:     }
 2813: JSONE
 2814:     if ($nomenu) {
 2815:         $js .= <<"JSTWO";
 2816:     document.location.href = url;
 2817: JSTWO
 2818:     } else {
 2819:         $js .= <<"JSTHREE";
 2820:     var newwin = 0;
 2821:     for (var i=0; i<document.getprev.prevwin.length; i++) {
 2822:         if (document.getprev.prevwin[i].checked == true) {
 2823:             newwin = document.getprev.prevwin[i].value;
 2824:         }
 2825:     }
 2826:     if (newwin == 1) {
 2827:         var options = 'height=600,width=800,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no';
 2828:         url = url+'&inhibitmenu=yes';
 2829:         if (typeof(previousWin) == 'undefined' || previousWin.closed) {
 2830:             previousWin = window.open(url,'',options,1);
 2831:         } else {
 2832:             previousWin.location.href = url;
 2833:         }
 2834:         previousWin.focus();
 2835:         return false;
 2836:     } else {
 2837:         document.location.href = url;
 2838:         return false;
 2839:     }
 2840: JSTHREE
 2841:     }
 2842:     $js .= <<"ENDJS";
 2843:     return false;
 2844: }
 2845: // ]]>
 2846: </script>
 2847: ENDJS
 2848: 
 2849: }
 2850: 
 2851: #--- Called from submission routine
 2852: sub processHandGrade {
 2853:     my ($request) = shift;
 2854:     my ($symb)   = &get_symb($request);
 2855:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2856:     my $button = $env{'form.gradeOpt'};
 2857:     my $ngrade = $env{'form.NCT'};
 2858:     my $ntstu  = $env{'form.NTSTU'};
 2859:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2860:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
 2861: 
 2862:     if ($button eq 'Save & Next') {
 2863: 	my $ctr = 0;
 2864: 	while ($ctr < $ngrade) {
 2865: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 2866: 	    my ($errorflag,$pts,$wgt,$numhidden) = 
 2867:                 &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 2868: 	    if ($errorflag eq 'no_score') {
 2869: 		$ctr++;
 2870: 		next;
 2871: 	    }
 2872: 	    if ($errorflag eq 'not_allowed') {
 2873:                 $request->print(
 2874:                     '<span class="LC_error">'
 2875:                    .&mt('Not allowed to modify grades for [_1]',"$uname:$udom")
 2876:                    .'</span>');
 2877: 		$ctr++;
 2878: 		next;
 2879: 	    }
 2880:             if ($numhidden) {
 2881:                 $request->print(
 2882:                     '<span class="LC_info">'
 2883:                    .&mt('For [_1]: [quant,_2,transaction] hidden',"$uname:$udom",$numhidden)
 2884:                    .'</span><br />');
 2885:             }
 2886: 	    my $includemsg = $env{'form.includemsg'.$ctr};
 2887: 	    my ($subject,$message,$msgstatus) = ('','','');
 2888: 	    my $restitle = &Apache::lonnet::gettitle($symb);
 2889:             my ($feedurl,$showsymb) =
 2890: 		&get_feedurl_and_symb($symb,$uname,$udom);
 2891: 	    my $messagetail;
 2892: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
 2893: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
 2894: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
 2895: 		$subject.=' ['.$restitle.']';
 2896: 		my (@msgnum) = split(/,/,$includemsg);
 2897: 		foreach (@msgnum) {
 2898: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
 2899: 		}
 2900: 		$message =&Apache::lonfeedback::clear_out_html($message);
 2901: 		if ($env{'form.withgrades'.$ctr}) {
 2902: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
 2903: 		    $messagetail = " for <a href=\"".
 2904: 		                   $feedurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2905: 		}
 2906: 		$msgstatus = 
 2907:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
 2908: 						     $message.$messagetail,
 2909:                                                      undef,$feedurl,undef,
 2910:                                                      undef,undef,$showsymb,
 2911:                                                      $restitle);
 2912: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
 2913: 				$msgstatus.'<br />');
 2914: 	    }
 2915: 	    if ($env{'form.collaborator'.$ctr}) {
 2916: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
 2917: 		foreach my $collabstr (@collabstrs) {
 2918: 		    my ($part,@collaborators) = split(/:/,$collabstr);
 2919: 		    foreach my $collaborator (@collaborators) {
 2920: 			my ($errorflag,$pts,$wgt) = 
 2921: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
 2922: 					   $env{'form.unamedom'.$ctr},$part);
 2923: 			if ($errorflag eq 'not_allowed') {
 2924: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 2925: 			    next;
 2926: 			} elsif ($message ne '') {
 2927: 			    my ($baseurl,$showsymb) = 
 2928: 				&get_feedurl_and_symb($symb,$collaborator,
 2929: 						      $udom);
 2930: 			    if ($env{'form.withgrades'.$ctr}) {
 2931: 				$messagetail = " for <a href=\"".
 2932:                                     $baseurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2933: 			    }
 2934: 			    $msgstatus = 
 2935: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 2936: 			}
 2937: 		    }
 2938: 		}
 2939: 	    }
 2940: 	    $ctr++;
 2941: 	}
 2942:     }
 2943: 
 2944:     if ($env{'form.handgrade'} eq 'yes') {
 2945: 	# Keywords sorted in alphabatical order
 2946: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2947: 	my %keyhash = ();
 2948: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
 2949: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
 2950: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 2951: 	$env{'form.keywords'} = join(' ',@keywords);
 2952: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
 2953: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
 2954: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 2955: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 2956: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
 2957: 
 2958: 	# message center - Order of message gets changed. Blank line is eliminated.
 2959: 	# New messages are saved in env for the next student.
 2960: 	# All messages are saved in nohist_handgrade.db
 2961: 	my ($ctr,$idx) = (1,1);
 2962: 	while ($ctr <= $env{'form.savemsgN'}) {
 2963: 	    if ($env{'form.savemsg'.$ctr} ne '') {
 2964: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
 2965: 		$idx++;
 2966: 	    }
 2967: 	    $ctr++;
 2968: 	}
 2969: 	$ctr = 0;
 2970: 	while ($ctr < $ngrade) {
 2971: 	    if ($env{'form.newmsg'.$ctr} ne '') {
 2972: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2973: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2974: 		$idx++;
 2975: 	    }
 2976: 	    $ctr++;
 2977: 	}
 2978: 	$env{'form.savemsgN'} = --$idx;
 2979: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
 2980: 	my $putresult = &Apache::lonnet::put
 2981: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
 2982:     }
 2983:     # Called by Save & Refresh from Highlight Attribute Window
 2984:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 2985:     if ($env{'form.refresh'} eq 'on') {
 2986: 	my ($ctr,$total) = (0,0);
 2987: 	while ($ctr < $ngrade) {
 2988: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
 2989: 	    $ctr++;
 2990: 	}
 2991: 	$env{'form.NTSTU'}=$ngrade;
 2992: 	$ctr = 0;
 2993: 	while ($ctr < $total) {
 2994: 	    my $processUser = $env{'form.unamedom'.$ctr};
 2995: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2996: 	    $env{'form.fullname'} = $$fullname{$processUser};
 2997: 	    &submission($request,$ctr,$total-1);
 2998: 	    $ctr++;
 2999: 	}
 3000: 	return '';
 3001:     }
 3002: 
 3003: # Go directly to grade student - from submission or link from chart page
 3004:     if ($button eq 'Grade Student') {
 3005: 	(undef,undef,$env{'form.handgrade'},undef,undef) = &showResourceInfo($symb);
 3006: 	my $processUser = $env{'form.unamedom'.$env{'form.studentNo'}};
 3007: 	($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 3008: 	$env{'form.fullname'} = $$fullname{$processUser};
 3009: 	&submission($request,0,0);
 3010: 	return '';
 3011:     }
 3012: 
 3013:     # Get the next/previous one or group of students
 3014:     my $firststu = $env{'form.unamedom0'};
 3015:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
 3016:     my $ctr = 2;
 3017:     while ($laststu eq '') {
 3018: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
 3019: 	$ctr++;
 3020: 	$laststu = $firststu if ($ctr > $ngrade);
 3021:     }
 3022: 
 3023:     my (@parsedlist,@nextlist);
 3024:     my ($nextflg) = 0;
 3025:     foreach my $item (sort 
 3026: 	     {
 3027: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3028: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3029: 		 }
 3030: 		 return $a cmp $b;
 3031: 	     } (keys(%$fullname))) {
 3032: 	if ($nextflg == 1 && $button =~ /Next$/) {
 3033: 	    push(@parsedlist,$item);
 3034: 	}
 3035: 	$nextflg = 1 if ($item eq $laststu);
 3036: 	if ($button eq 'Previous') {
 3037: 	    last if ($item eq $firststu);
 3038: 	    push(@parsedlist,$item);
 3039: 	}
 3040:     }
 3041:     $ctr = 0;
 3042:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
 3043:     my $res_error;
 3044:     my ($partlist) = &response_type($symb,\$res_error);
 3045:     if ($res_error) {
 3046:         $request->print(&navmap_errormsg());
 3047:         return;
 3048:     }
 3049:     foreach my $student (@parsedlist) {
 3050: 	my $submitonly=$env{'form.submitonly'};
 3051: 	my ($uname,$udom) = split(/:/,$student);
 3052: 	
 3053: 	if ($submitonly eq 'queued') {
 3054: 	    my %queue_status = 
 3055: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 3056: 							$udom,$uname);
 3057: 	    next if (!defined($queue_status{'gradingqueue'}));
 3058: 	}
 3059: 
 3060: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
 3061: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 3062: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
 3063: 	    my $submitted = 0;
 3064: 	    my $ungraded = 0;
 3065: 	    my $incorrect = 0;
 3066: 	    foreach my $item (keys(%status)) {
 3067: 		$submitted = 1 if ($status{$item} ne 'nothing');
 3068: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
 3069: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
 3070: 		my ($foo,$partid,$foo1) = split(/\./,$item);
 3071: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 3072: 		    $submitted = 0;
 3073: 		}
 3074: 	    }
 3075: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 3076: 				     $submitonly eq 'incorrect' ||
 3077: 				     $submitonly eq 'graded'));
 3078: 	    next if (!$ungraded && ($submitonly eq 'graded'));
 3079: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 3080: 	}
 3081: 	push(@nextlist,$student) if ($ctr < $ntstu);
 3082: 	last if ($ctr == $ntstu);
 3083: 	$ctr++;
 3084:     }
 3085: 
 3086:     $ctr = 0;
 3087:     my $total = scalar(@nextlist)-1;
 3088: 
 3089:     foreach (sort(@nextlist)) {
 3090: 	my ($uname,$udom,$submitter) = split(/:/);
 3091: 	$env{'form.student'}  = $uname;
 3092: 	$env{'form.userdom'}  = $udom;
 3093: 	$env{'form.fullname'} = $$fullname{$_};
 3094: 	&submission($request,$ctr,$total);
 3095: 	$ctr++;
 3096:     }
 3097:     if ($total < 0) {
 3098: 	my $the_end = '<h3><span class="LC_info">'.&mt('LON-CAPA User Message').'</span></h3><br />'."\n";
 3099: 	$the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
 3100: 	$the_end.=&mt('Click on the button below to return to the grading menu.').'<br /><br />'."\n";
 3101: 	$the_end.=&show_grading_menu_form($symb);
 3102: 	$request->print($the_end);
 3103:     }
 3104:     return '';
 3105: }
 3106: 
 3107: #---- Save the score and award for each student, if changed
 3108: sub saveHandGrade {
 3109:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 3110:     my @version_parts;
 3111:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 3112: 					   $env{'request.course.id'});
 3113:     if (!&canmodify($usec)) { return('not_allowed'); }
 3114:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
 3115:     my @parts_graded;
 3116:     my %newrecord  = ();
 3117:     my ($pts,$wgt,$totchg) = ('','',0);
 3118:     my %aggregate = ();
 3119:     my $aggregateflag = 0;
 3120:     if ($env{'form.HIDE'.$newflg}) {
 3121:         my ($version,$parts) = split(/:/,$env{'form.HIDE'.$newflg},2);
 3122:         my $numchgs = &makehidden($version,$parts,\%record,$symb,$domain,$stuname,1);
 3123:         $totchg += $numchgs;
 3124:     }
 3125:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
 3126:     foreach my $new_part (@parts) {
 3127: 	#collaborator ($submi may vary for different parts
 3128: 	if ($submitter && $new_part ne $part) { next; }
 3129: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
 3130: 	if ($dropMenu eq 'excused') {
 3131: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 3132: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 3133: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 3134: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 3135: 		}
 3136: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 3137: 	    }
 3138: 	} elsif ($dropMenu eq 'reset status'
 3139: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
 3140: 	    foreach my $key (keys(%record)) {
 3141: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
 3142: 	    }
 3143: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 3144: 		"$env{'user.name'}:$env{'user.domain'}";
 3145:             my $totaltries = $record{'resource.'.$part.'.tries'};
 3146: 
 3147:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 3148: 					       [$new_part]);
 3149:             my $aggtries =$totaltries;
 3150:             if ($last_resets{$new_part}) {
 3151:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
 3152: 					   $new_part);
 3153:             }
 3154: 
 3155:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
 3156:             if ($aggtries > 0) {
 3157:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 3158:                 $aggregateflag = 1;
 3159:             }
 3160: 	} elsif ($dropMenu eq '') {
 3161: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 3162: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
 3163: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
 3164: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
 3165: 		next;
 3166: 	    }
 3167: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 3168: 		$env{'form.WGT'.$newflg.'_'.$new_part};
 3169: 	    my $partial= $pts/$wgt;
 3170: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 3171: 		#do not update score for part if not changed.
 3172:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 3173: 		next;
 3174: 	    } else {
 3175: 	        push(@parts_graded,$new_part);
 3176: 	    }
 3177: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 3178: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
 3179: 	    }
 3180: 	    my $reckey = 'resource.'.$new_part.'.solved';
 3181: 	    if ($partial == 0) {
 3182: 		if ($record{$reckey} ne 'incorrect_by_override') {
 3183: 		    $newrecord{$reckey} = 'incorrect_by_override';
 3184: 		}
 3185: 	    } else {
 3186: 		if ($record{$reckey} ne 'correct_by_override') {
 3187: 		    $newrecord{$reckey} = 'correct_by_override';
 3188: 		}
 3189: 	    }	    
 3190: 	    if ($submitter && 
 3191: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
 3192: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
 3193: 	    }
 3194: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 3195: 		"$env{'user.name'}:$env{'user.domain'}";
 3196: 	}
 3197: 	# unless problem has been graded, set flag to version the submitted files
 3198: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
 3199: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
 3200: 	        $dropMenu eq 'reset status')
 3201: 	   {
 3202: 	    push(@version_parts,$new_part);
 3203: 	}
 3204:     }
 3205:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3206:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3207: 
 3208:     if (%newrecord) {
 3209:         if (@version_parts) {
 3210:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
 3211:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
 3212: 	    @newrecord{@changed_keys} = @record{@changed_keys};
 3213: 	    foreach my $new_part (@version_parts) {
 3214: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
 3215: 				$new_part,\%newrecord);
 3216: 	    }
 3217:         }
 3218: 	&Apache::lonnet::cstore(\%newrecord,$symb,
 3219: 				$env{'request.course.id'},$domain,$stuname);
 3220: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
 3221: 				     $cdom,$cnum,$domain,$stuname);
 3222:     }
 3223:     if ($aggregateflag) {
 3224:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3225: 			      $cdom,$cnum);
 3226:     }
 3227:     return ('',$pts,$wgt,$totchg);
 3228: }
 3229: 
 3230: sub makehidden {
 3231:     my ($version,$parts,$record,$symb,$domain,$stuname,$tolog) = @_;
 3232:     return unless (ref($record) eq 'HASH');
 3233:     my %modified;
 3234:     my $numchanged = 0;
 3235:     if (exists($record->{$version.':keys'})) {
 3236:         my $partsregexp = $parts;
 3237:         $partsregexp =~ s/,/|/g;
 3238:         foreach my $key (split(/\:/,$record->{$version.':keys'})) {
 3239:             if ($key =~ /^resource\.(?:$partsregexp)\.([^\.]+)$/) {
 3240:                  my $item = $1;
 3241:                  unless (($item eq 'solved') || ($item =~ /^award(|msg|ed)$/)) {
 3242:                      $modified{$key} = $record->{$version.':'.$key};
 3243:                  }
 3244:             } elsif ($key =~ m{^(resource\.(?:$partsregexp)\.[^\.]+\.)(.+)$}) {
 3245:                 $modified{$1.'hidden'.$2} = $record->{$version.':'.$key};
 3246:             } elsif ($key =~ /^(ip|timestamp|host)$/) {
 3247:                 $modified{$key} = $record->{$version.':'.$key};
 3248:             }
 3249:         }
 3250:         if (keys(%modified)) {
 3251:             if (&Apache::lonnet::putstore($env{'request.course.id'},$symb,$version,\%modified,
 3252:                                           $domain,$stuname,$tolog) eq 'ok') {
 3253:                 $numchanged ++;
 3254:             }
 3255:         }
 3256:     }
 3257:     return $numchanged;
 3258: }
 3259: 
 3260: sub check_and_remove_from_queue {
 3261:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
 3262:     my @ungraded_parts;
 3263:     foreach my $part (@{$parts}) {
 3264: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
 3265: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
 3266: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 3267: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 3268: 		) {
 3269: 	    push(@ungraded_parts, $part);
 3270: 	}
 3271:     }
 3272:     if ( !@ungraded_parts ) {
 3273: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
 3274: 					       $cnum,$domain,$stuname);
 3275:     }
 3276: }
 3277: 
 3278: sub handback_files {
 3279:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
 3280:     my $portfolio_root = '/userfiles/portfolio';
 3281:     my $res_error;
 3282:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3283:     if ($res_error) {
 3284:         $request->print('<br />'.&navmap_errormsg().'<br />');
 3285:         return;
 3286:     }
 3287:     my @handedback;
 3288:     my $file_msg;
 3289:     my @part_response_id = &flatten_responseType($responseType);
 3290:     foreach my $part_response_id (@part_response_id) {
 3291:     	my ($part_id,$resp_id) = @{ $part_response_id };
 3292: 	my $part_resp = join('_',@{ $part_response_id });
 3293:         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
 3294:             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
 3295:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
 3296: 		if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
 3297:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
 3298:                     my ($directory,$answer_file) = 
 3299:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
 3300:                     my ($answer_name,$answer_ver,$answer_ext) =
 3301: 		        &file_name_version_ext($answer_file);
 3302: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
 3303:                     my $getpropath = 1;
 3304:                     my ($dir_list,$listerror) =
 3305:                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
 3306:                                                  $domain,$stuname,$getpropath);
 3307: 		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3308:                     # fix filename
 3309:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
 3310:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
 3311:             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
 3312:             	                                $save_file_name);
 3313:                     if ($result !~ m|^/uploaded/|) {
 3314:                         $request->print('<br /><span class="LC_error">'.
 3315:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
 3316:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
 3317:                                         '</span>');
 3318:                     } else {
 3319:                         # mark the file as read only
 3320:                         push(@handedback,$save_file_name);
 3321: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 3322: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 3323: 			}
 3324:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
 3325: 			$file_msg.='<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
 3326: 
 3327:                     }
 3328:                     $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
 3329:                 }
 3330:             }
 3331:         }
 3332:     }
 3333:     if (@handedback > 0) {
 3334:         $request->print('<br />');
 3335:         my @what = ($symb,$env{'request.course.id'},'handback');
 3336:         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
 3337:         my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});
 3338:         my ($subject,$message);
 3339:         if (scalar(@handedback) == 1) {
 3340:             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
 3341:         } else {
 3342:             $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
 3343:             $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
 3344:         }
 3345:         $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
 3346:         $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
 3347:                     &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
 3348:         my ($feedurl,$showsymb) =
 3349:             &get_feedurl_and_symb($symb,$domain,$stuname);
 3350:         my $restitle = &Apache::lonnet::gettitle($symb);
 3351:         $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
 3352:         my $msgstatus =
 3353:              &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
 3354:                  $message,undef,$feedurl,undef,undef,undef,$showsymb,
 3355:                  $restitle);
 3356:         if ($msgstatus) {
 3357:             $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
 3358:         }
 3359:     }
 3360:     return;
 3361: }
 3362: 
 3363: sub get_feedurl_and_symb {
 3364:     my ($symb,$uname,$udom) = @_;
 3365:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3366:     $url = &Apache::lonnet::clutter($url);
 3367:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
 3368: 					$symb,$udom,$uname);
 3369:     if ($encrypturl =~ /^yes$/i) {
 3370: 	&Apache::lonenc::encrypted(\$url,1);
 3371: 	&Apache::lonenc::encrypted(\$symb,1);
 3372:     }
 3373:     return ($url,$symb);
 3374: }
 3375: 
 3376: sub get_submitted_files {
 3377:     my ($udom,$uname,$partid,$respid,$record) = @_;
 3378:     my @files;
 3379:     if ($$record{"resource.$partid.$respid.portfiles"}) {
 3380:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
 3381:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
 3382:     	    push(@files,$file_url.$file);
 3383:         }
 3384:     }
 3385:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
 3386:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
 3387:     }
 3388:     return (\@files);
 3389: }
 3390: 
 3391: # ----------- Provides number of tries since last reset.
 3392: sub get_num_tries {
 3393:     my ($record,$last_reset,$part) = @_;
 3394:     my $timestamp = '';
 3395:     my $num_tries = 0;
 3396:     if ($$record{'version'}) {
 3397:         for (my $version=$$record{'version'};$version>=1;$version--) {
 3398:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
 3399:                 $timestamp = $$record{$version.':timestamp'};
 3400:                 if ($timestamp > $last_reset) {
 3401:                     $num_tries ++;
 3402:                 } else {
 3403:                     last;
 3404:                 }
 3405:             }
 3406:         }
 3407:     }
 3408:     return $num_tries;
 3409: }
 3410: 
 3411: # ----------- Determine decrements required in aggregate totals 
 3412: sub decrement_aggs {
 3413:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
 3414:     my %decrement = (
 3415:                         attempts => 0,
 3416:                         users => 0,
 3417:                         correct => 0
 3418:                     );
 3419:     $decrement{'attempts'} = $aggtries;
 3420:     if ($solvedstatus =~ /^correct/) {
 3421:         $decrement{'correct'} = 1;
 3422:     }
 3423:     if ($aggtries == $totaltries) {
 3424:         $decrement{'users'} = 1;
 3425:     }
 3426:     foreach my $type (keys(%decrement)) {
 3427:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
 3428:     }
 3429:     return;
 3430: }
 3431: 
 3432: # ----------- Determine timestamps for last reset of aggregate totals for parts  
 3433: sub get_last_resets {
 3434:     my ($symb,$courseid,$partids) =@_;
 3435:     my %last_resets;
 3436:     my $cdom = $env{'course.'.$courseid.'.domain'};
 3437:     my $cname = $env{'course.'.$courseid.'.num'};
 3438:     my @keys;
 3439:     foreach my $part (@{$partids}) {
 3440: 	push(@keys,"$symb\0$part\0resettime");
 3441:     }
 3442:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
 3443: 				     $cdom,$cname);
 3444:     foreach my $part (@{$partids}) {
 3445: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
 3446:     }
 3447:     return %last_resets;
 3448: }
 3449: 
 3450: # ----------- Handles creating versions for portfolio files as answers
 3451: sub version_portfiles {
 3452:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
 3453:     my $version_parts = join('|',@$v_flag);
 3454:     my @returned_keys;
 3455:     my $parts = join('|', @$parts_graded);
 3456:     my $portfolio_root = '/userfiles/portfolio';
 3457:     foreach my $key (keys(%$record)) {
 3458:         my $new_portfiles;
 3459:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
 3460:             my @versioned_portfiles;
 3461:             my @portfiles = split(/\s*,\s*/,$$record{$key});
 3462:             foreach my $file (@portfiles) {
 3463:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
 3464:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
 3465: 		my ($answer_name,$answer_ver,$answer_ext) =
 3466: 		    &file_name_version_ext($answer_file);
 3467:                 my $getpropath = 1;
 3468:                 my ($dir_list,$listerror) =
 3469:                     &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
 3470:                                              $stu_name,$getpropath);
 3471:                 my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3472:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
 3473:                 if ($new_answer ne 'problem getting file') {
 3474:                     push(@versioned_portfiles, $directory.$new_answer);
 3475:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
 3476:                         [$directory.$new_answer],
 3477:                         [$symb,$env{'request.course.id'},'graded']);
 3478:                 }
 3479:             }
 3480:             $$record{$key} = join(',',@versioned_portfiles);
 3481:             push(@returned_keys,$key);
 3482:         }
 3483:     } 
 3484:     return (@returned_keys);   
 3485: }
 3486: 
 3487: sub get_next_version {
 3488:     my ($answer_name, $answer_ext, $dir_list) = @_;
 3489:     my $version;
 3490:     if (ref($dir_list) eq 'ARRAY') {
 3491:         foreach my $row (@{$dir_list}) {
 3492:             my ($file) = split(/\&/,$row,2);
 3493:             my ($file_name,$file_version,$file_ext) =
 3494: 	        &file_name_version_ext($file);
 3495:             if (($file_name eq $answer_name) && 
 3496: 	        ($file_ext eq $answer_ext)) {
 3497:                 # gets here if filename and extension match, 
 3498:                 # regardless of version
 3499:                 if ($file_version ne '') {
 3500:                     # a versioned file is found  so save it for later
 3501:                     if ($file_version > $version) {
 3502: 		        $version = $file_version;
 3503:                     }
 3504: 	        }
 3505:             }
 3506:         }
 3507:     }
 3508:     $version ++;
 3509:     return($version);
 3510: }
 3511: 
 3512: sub version_selected_portfile {
 3513:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
 3514:     my ($answer_name,$answer_ver,$answer_ext) =
 3515:         &file_name_version_ext($file_name);
 3516:     my $new_answer;
 3517:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
 3518:     if($env{'form.copy'} eq '-1') {
 3519:         $new_answer = 'problem getting file';
 3520:     } else {
 3521:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
 3522:         my $copy_result = &Apache::lonnet::finishuserfileupload(
 3523:                             $stu_name,$domain,'copy',
 3524: 		        '/portfolio'.$directory.$new_answer);
 3525:     }    
 3526:     return ($new_answer);
 3527: }
 3528: 
 3529: sub file_name_version_ext {
 3530:     my ($file)=@_;
 3531:     my @file_parts = split(/\./, $file);
 3532:     my ($name,$version,$ext);
 3533:     if (@file_parts > 1) {
 3534: 	$ext=pop(@file_parts);
 3535: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
 3536: 	    $version=pop(@file_parts);
 3537: 	}
 3538: 	$name=join('.',@file_parts);
 3539:     } else {
 3540: 	$name=join('.',@file_parts);
 3541:     }
 3542:     return($name,$version,$ext);
 3543: }
 3544: 
 3545: #--------------------------------------------------------------------------------------
 3546: #
 3547: #-------------------------- Next few routines handles grading by section or whole class
 3548: #
 3549: #--- Javascript to handle grading by section or whole class
 3550: sub viewgrades_js {
 3551:     my ($request) = shift;
 3552: 
 3553:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 3554:     $request->print(<<VIEWJAVASCRIPT);
 3555: <script type="text/javascript" language="javascript">
 3556:    function writePoint(partid,weight,point) {
 3557: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3558: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3559: 	if (point == "textval") {
 3560: 	    point = document.classgrade["TEXTVAL_"+partid].value;
 3561: 	    if (isNaN(point) || parseFloat(point) < 0) {
 3562: 		alert("$alertmsg"+parseFloat(point));
 3563: 		var resetbox = false;
 3564: 		for (var i=0; i<radioButton.length; i++) {
 3565: 		    if (radioButton[i].checked) {
 3566: 			textbox.value = i;
 3567: 			resetbox = true;
 3568: 		    }
 3569: 		}
 3570: 		if (!resetbox) {
 3571: 		    textbox.value = "";
 3572: 		}
 3573: 		return;
 3574: 	    }
 3575: 	    if (parseFloat(point) > parseFloat(weight)) {
 3576: 		var resp = confirm("You entered a value ("+parseFloat(point)+
 3577: 				   ") greater than the weight for the part. Accept?");
 3578: 		if (resp == false) {
 3579: 		    textbox.value = "";
 3580: 		    return;
 3581: 		}
 3582: 	    }
 3583: 	    for (var i=0; i<radioButton.length; i++) {
 3584: 		radioButton[i].checked=false;
 3585: 		if (parseFloat(point) == i) {
 3586: 		    radioButton[i].checked=true;
 3587: 		}
 3588: 	    }
 3589: 
 3590: 	} else {
 3591: 	    textbox.value = parseFloat(point);
 3592: 	}
 3593: 	for (i=0;i<document.classgrade.total.value;i++) {
 3594: 	    var user = document.classgrade["ctr"+i].value;
 3595: 	    user = user.replace(new RegExp(':', 'g'),"_");
 3596: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3597: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3598: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3599: 	    if (saveval != "correct") {
 3600: 		scorename.value = point;
 3601: 		if (selname[0].selected != true) {
 3602: 		    selname[0].selected = true;
 3603: 		}
 3604: 	    }
 3605: 	}
 3606: 	document.classgrade["SELVAL_"+partid][0].selected = true;
 3607:     }
 3608: 
 3609:     function writeRadText(partid,weight) {
 3610: 	var selval   = document.classgrade["SELVAL_"+partid];
 3611: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3612:         var override = document.classgrade["FORCE_"+partid].checked;
 3613: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3614: 	if (selval[1].selected || selval[2].selected) {
 3615: 	    for (var i=0; i<radioButton.length; i++) {
 3616: 		radioButton[i].checked=false;
 3617: 
 3618: 	    }
 3619: 	    textbox.value = "";
 3620: 
 3621: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3622: 		var user = document.classgrade["ctr"+i].value;
 3623: 		user = user.replace(new RegExp(':', 'g'),"_");
 3624: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3625: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3626: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3627: 		if ((saveval != "correct") || override) {
 3628: 		    scorename.value = "";
 3629: 		    if (selval[1].selected) {
 3630: 			selname[1].selected = true;
 3631: 		    } else {
 3632: 			selname[2].selected = true;
 3633: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
 3634: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
 3635: 		    }
 3636: 		}
 3637: 	    }
 3638: 	} else {
 3639: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3640: 		var user = document.classgrade["ctr"+i].value;
 3641: 		user = user.replace(new RegExp(':', 'g'),"_");
 3642: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3643: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3644: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3645: 		if ((saveval != "correct") || override) {
 3646: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3647: 		    selname[0].selected = true;
 3648: 		}
 3649: 	    }
 3650: 	}	    
 3651:     }
 3652: 
 3653:     function changeSelect(partid,user) {
 3654: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3655: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
 3656: 	var point  = textbox.value;
 3657: 	var weight = document.classgrade["weight_"+partid].value;
 3658: 
 3659: 	if (isNaN(point) || parseFloat(point) < 0) {
 3660: 	    alert("$alertmsg"+parseFloat(point));
 3661: 	    textbox.value = "";
 3662: 	    return;
 3663: 	}
 3664: 	if (parseFloat(point) > parseFloat(weight)) {
 3665: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
 3666: 			       ") greater than the weight of the part. Accept?");
 3667: 	    if (resp == false) {
 3668: 		textbox.value = "";
 3669: 		return;
 3670: 	    }
 3671: 	}
 3672: 	selval[0].selected = true;
 3673:     }
 3674: 
 3675:     function changeOneScore(partid,user) {
 3676: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3677: 	if (selval[1].selected || selval[2].selected) {
 3678: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
 3679: 	    if (selval[2].selected) {
 3680: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
 3681: 	    }
 3682:         }
 3683:     }
 3684: 
 3685:     function resetEntry(numpart) {
 3686: 	for (ctpart=0;ctpart<numpart;ctpart++) {
 3687: 	    var partid = document.classgrade["partid_"+ctpart].value;
 3688: 	    var radioButton = document.classgrade["RADVAL_"+partid];
 3689: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
 3690: 	    var selval  = document.classgrade["SELVAL_"+partid];
 3691: 	    for (var i=0; i<radioButton.length; i++) {
 3692: 		radioButton[i].checked=false;
 3693: 
 3694: 	    }
 3695: 	    textbox.value = "";
 3696: 	    selval[0].selected = true;
 3697: 
 3698: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3699: 		var user = document.classgrade["ctr"+i].value;
 3700: 		user = user.replace(new RegExp(':', 'g'),"_");
 3701: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3702: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3703: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
 3704: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
 3705: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3706: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3707: 		if (saveselval == "excused") {
 3708: 		    if (selname[1].selected == false) { selname[1].selected = true;}
 3709: 		} else {
 3710: 		    if (selname[0].selected == false) {selname[0].selected = true};
 3711: 		}
 3712: 	    }
 3713: 	}
 3714:     }
 3715: 
 3716: </script>
 3717: VIEWJAVASCRIPT
 3718: }
 3719: 
 3720: #--- show scores for a section or whole class w/ option to change/update a score
 3721: sub viewgrades {
 3722:     my ($request) = shift;
 3723:     &viewgrades_js($request);
 3724: 
 3725:     my ($symb) = &get_symb($request);
 3726:     #need to make sure we have the correct data for later EXT calls, 
 3727:     #thus invalidate the cache
 3728:     &Apache::lonnet::devalidatecourseresdata(
 3729:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 3730:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 3731:     &Apache::lonnet::clear_EXT_cache_status();
 3732: 
 3733:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
 3734:     $result.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 3735: 
 3736:     #view individual student submission form - called using Javascript viewOneStudent
 3737:     $result.=&jscriptNform($symb);
 3738: 
 3739:     #beginning of class grading form
 3740:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 3741:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
 3742: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 3743: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
 3744: 	&build_section_inputs().
 3745: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 3746: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 3747: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 3748: 
 3749:     my ($common_header,$specific_header);
 3750:     if ($env{'form.section'} eq 'all') {
 3751: 	$common_header = &mt('Assign Common Grade to Class');
 3752:         $specific_header = &mt('Assign Grade to Specific Students in Class');
 3753:     } elsif ($env{'form.section'} eq 'none') {
 3754:         $common_header = &mt('Assign Common Grade to Students in no Section');
 3755: 	$specific_header = &mt('Assign Grade to Specific Students in no Section');
 3756:     } else {
 3757:         my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3758:         $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
 3759: 	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
 3760:     }
 3761:     $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
 3762:     #radio buttons/text box for assigning points for a section or class.
 3763:     #handles different parts of a problem
 3764:     my $res_error;
 3765:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3766:     if ($res_error) {
 3767:         return &navmap_errormsg();
 3768:     }
 3769:     my %weight = ();
 3770:     my $ctsparts = 0;
 3771:     my %seen = ();
 3772:     my @part_response_id = &flatten_responseType($responseType);
 3773:     foreach my $part_response_id (@part_response_id) {
 3774:     	my ($partid,$respid) = @{ $part_response_id };
 3775: 	my $part_resp = join('_',@{ $part_response_id });
 3776: 	next if $seen{$partid};
 3777: 	$seen{$partid}++;
 3778: 	my $handgrade=$$handgrade{$part_resp};
 3779: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 3780: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 3781: 
 3782: 	my $display_part=&get_display_part($partid,$symb);
 3783: 	my $radio.='<table border="0"><tr>';  
 3784: 	my $ctr = 0;
 3785: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
 3786: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
 3787: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
 3788: 		','.$ctr.')" />'.$ctr."</label></td>\n";
 3789: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 3790: 	    $ctr++;
 3791: 	}
 3792: 	$radio.='</tr></table>';
 3793: 	my $line = '<input type="text" name="TEXTVAL_'.
 3794: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 3795: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 3796: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
 3797: 	$line.= '<td><b>'.&mt('Grade Status').':</b>'.
 3798:                 '<select name="SELVAL_'.$partid.'" '.
 3799: 	        'onchange="javascript:writeRadText(\''.$partid.'\','.
 3800: 		$weight{$partid}.')"> '.
 3801: 	    '<option selected="selected"> </option>'.
 3802: 	    '<option value="excused">'.&mt('excused').'</option>'.
 3803: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
 3804: 	    '</select></td>'.
 3805:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
 3806: 	$line.='<input type="hidden" name="partid_'.
 3807: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
 3808: 	$line.='<input type="hidden" name="weight_'.
 3809: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
 3810: 
 3811: 	$result.=
 3812: 	    &Apache::loncommon::start_data_table_row()."\n".
 3813: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
 3814: 	    &Apache::loncommon::end_data_table_row()."\n";
 3815: 	$ctsparts++;
 3816:     }
 3817:     $result.=&Apache::loncommon::end_data_table()."\n".
 3818: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
 3819:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
 3820: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
 3821: 
 3822:     #table listing all the students in a section/class
 3823:     #header of table
 3824:     $result.= '<h3>'.$specific_header.'</h3>'.
 3825:               &Apache::loncommon::start_data_table().
 3826: 	      &Apache::loncommon::start_data_table_header_row().
 3827: 	      '<th>'.&mt('No.').'</th>'.
 3828: 	      '<th>'.&nameUserString('header')."</th>\n";
 3829:     my $partserror;
 3830:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3831:     if ($partserror) {
 3832:         return &navmap_errormsg();
 3833:     }
 3834:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
 3835:     my @partids = ();
 3836:     foreach my $part (@parts) {
 3837: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3838:         my $narrowtext = &mt('Tries');
 3839: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
 3840: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
 3841: 	my ($partid) = &split_part_type($part);
 3842:         push(@partids,$partid);
 3843: 	my $display_part=&get_display_part($partid,$symb);
 3844: 	if ($display =~ /^Partial Credit Factor/) {
 3845: 	    $result.='<th>'.
 3846:                 &mt('Score Part: [_1][_2](weight = [_3])',
 3847:                     $display_part,'<br />',$weight{$partid}).'</th>'."\n";
 3848: 	    next;
 3849: 	    
 3850: 	} else {
 3851: 	    if ($display =~ /Problem Status/) {
 3852: 		my $grade_status_mt = &mt('Grade Status');
 3853: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
 3854: 	    }
 3855: 	    my $part_mt = &mt('Part:');
 3856: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
 3857: 	}
 3858: 
 3859: 	$result.='<th>'.$display.'</th>'."\n";
 3860:     }
 3861:     $result.=&Apache::loncommon::end_data_table_header_row();
 3862: 
 3863:     my %last_resets = 
 3864: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
 3865: 
 3866:     #get info for each student
 3867:     #list all the students - with points and grade status
 3868:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 3869:     my $ctr = 0;
 3870:     foreach (sort 
 3871: 	     {
 3872: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3873: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3874: 		 }
 3875: 		 return $a cmp $b;
 3876: 	     } (keys(%$fullname))) {
 3877: 	$ctr++;
 3878: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
 3879: 				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
 3880:     }
 3881:     $result.=&Apache::loncommon::end_data_table();
 3882:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
 3883:     $result.='<input type="button" value="'.&mt('Save').'" '.
 3884: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
 3885:     if (scalar(%$fullname) eq 0) {
 3886: 	my $colspan=3+scalar(@parts);
 3887: 	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3888:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
 3889: 	$result='<span class="LC_warning">'.
 3890: 	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
 3891: 	        $section_display, $stu_status).
 3892: 	    '</span>';
 3893:     }
 3894:     $result.=&show_grading_menu_form($symb);
 3895:     return $result;
 3896: }
 3897: 
 3898: #--- call by previous routine to display each student
 3899: sub viewstudentgrade {
 3900:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
 3901:     my ($uname,$udom) = split(/:/,$student);
 3902:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
 3903:     my %aggregates = (); 
 3904:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
 3905: 	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
 3906: 	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
 3907: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 3908: 	'\');" target="_self">'.$fullname.'</a> '.
 3909: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
 3910:     $student=~s/:/_/; # colon doen't work in javascript for names
 3911:     foreach my $apart (@$parts) {
 3912: 	my ($part,$type) = &split_part_type($apart);
 3913: 	my $score=$record{"resource.$part.$type"};
 3914:         $result.='<td align="center">';
 3915:         my ($aggtries,$totaltries);
 3916:         unless (exists($aggregates{$part})) {
 3917: 	    $totaltries = $record{'resource.'.$part.'.tries'};
 3918: 
 3919: 	    $aggtries = $totaltries;
 3920:             if ($$last_resets{$part}) {  
 3921:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
 3922: 					   $part);
 3923:             }
 3924:             $result.='<input type="hidden" name="'.
 3925:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
 3926:             $result.='<input type="hidden" name="'.
 3927:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
 3928:             $aggregates{$part} = 1;
 3929:         }
 3930: 	if ($type eq 'awarded') {
 3931: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
 3932: 	    $result.='<input type="hidden" name="'.
 3933: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
 3934: 	    $result.='<input type="text" name="'.
 3935: 		'GD_'.$student.'_'.$part.'_awarded" '.
 3936:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
 3937: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
 3938: 	} elsif ($type eq 'solved') {
 3939: 	    my ($status,$foo)=split(/_/,$score,2);
 3940: 	    $status = 'nothing' if ($status eq '');
 3941: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
 3942: 		$part.'_solved_s" value="'.$status.'" />'."\n";
 3943: 	    $result.='&nbsp;<select name="'.
 3944: 		'GD_'.$student.'_'.$part.'_solved" '.
 3945:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
 3946: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
 3947: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
 3948: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
 3949: 	    $result.="</select>&nbsp;</td>\n";
 3950: 	} else {
 3951: 	    $result.='<input type="hidden" name="'.
 3952: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
 3953: 		    "\n";
 3954: 	    $result.='<input type="text" name="'.
 3955: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
 3956: 		'value="'.$score.'" size="4" /></td>'."\n";
 3957: 	}
 3958:     }
 3959:     $result.=&Apache::loncommon::end_data_table_row();
 3960:     return $result;
 3961: }
 3962: 
 3963: #--- change scores for all the students in a section/class
 3964: #    record does not get update if unchanged
 3965: sub editgrades {
 3966:     my ($request) = @_;
 3967: 
 3968:     my ($symb)=&get_symb($request);
 3969:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3970:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
 3971:     $title.='<h4><b>'.&mt('Current Resource').':</b> '.$env{'form.probTitle'}.'</h4>'."\n";
 3972:     $title.='<h4><b>'.&mt('Section:').'</b> '.$section_display.'</h4>'."\n";
 3973: 
 3974:     my $result= &Apache::loncommon::start_data_table().
 3975: 	&Apache::loncommon::start_data_table_header_row().
 3976: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
 3977: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
 3978:     my %scoreptr = (
 3979: 		    'correct'  =>'correct_by_override',
 3980: 		    'incorrect'=>'incorrect_by_override',
 3981: 		    'excused'  =>'excused',
 3982: 		    'ungraded' =>'ungraded_attempted',
 3983:                     'credited' =>'credit_attempted',
 3984: 		    'nothing'  => '',
 3985: 		    );
 3986:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 3987: 
 3988:     my (@partid);
 3989:     my %weight = ();
 3990:     my %columns = ();
 3991:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
 3992: 
 3993:     my $partserror;
 3994:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3995:     if ($partserror) {
 3996:         return &navmap_errormsg();
 3997:     }
 3998:     my $header;
 3999:     while ($ctr < $env{'form.totalparts'}) {
 4000: 	my $partid = $env{'form.partid_'.$ctr};
 4001: 	push(@partid,$partid);
 4002: 	$weight{$partid} = $env{'form.weight_'.$partid};
 4003: 	$ctr++;
 4004:     }
 4005:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4006:     foreach my $partid (@partid) {
 4007: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
 4008: 	    '<th align="center">'.&mt('New Score').'</th>';
 4009: 	$columns{$partid}=2;
 4010: 	foreach my $stores (@parts) {
 4011: 	    my ($part,$type) = &split_part_type($stores);
 4012: 	    if ($part !~ m/^\Q$partid\E/) { next;}
 4013: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
 4014: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
 4015: 	    $display =~ s/\[Part: \Q$part\E\]//;
 4016:             my $narrowtext = &mt('Tries');
 4017: 	    $display =~ s/Number of Attempts/$narrowtext/;
 4018: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
 4019: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
 4020: 	    $columns{$partid}+=2;
 4021: 	}
 4022:     }
 4023:     foreach my $partid (@partid) {
 4024: 	my $display_part=&get_display_part($partid,$symb);
 4025: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
 4026: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
 4027: 	    '</th>';
 4028: 
 4029:     }
 4030:     $result .= &Apache::loncommon::end_data_table_header_row().
 4031: 	&Apache::loncommon::start_data_table_header_row().
 4032: 	$header.
 4033: 	&Apache::loncommon::end_data_table_header_row();
 4034:     my @noupdate;
 4035:     my ($updateCtr,$noupdateCtr) = (1,1);
 4036:     for ($i=0; $i<$env{'form.total'}; $i++) {
 4037: 	my $line;
 4038: 	my $user = $env{'form.ctr'.$i};
 4039: 	my ($uname,$udom)=split(/:/,$user);
 4040: 	my %newrecord;
 4041: 	my $updateflag = 0;
 4042: 	$line .= '<td>'.&nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
 4043: 	my $usec=$classlist->{"$uname:$udom"}[5];
 4044: 	if (!&canmodify($usec)) {
 4045: 	    my $numcols=scalar(@partid)*4+2;
 4046: 	    push(@noupdate,
 4047: 		 $line."<td colspan=\"$numcols\"><span class=\"LC_warning\">".
 4048: 		 &mt('Not allowed to modify student')."</span></td></tr>");
 4049: 	    next;
 4050: 	}
 4051:         my %aggregate = ();
 4052:         my $aggregateflag = 0;
 4053: 	$user=~s/:/_/; # colon doen't work in javascript for names
 4054: 	foreach (@partid) {
 4055: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 4056: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
 4057: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
 4058: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 4059: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 4060: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 4061: 	    my $partial   = $awarded eq '' ? '' : $pcr;
 4062: 	    my $score;
 4063: 	    if ($partial eq '') {
 4064: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 4065: 	    } elsif ($partial > 0) {
 4066: 		$score = 'correct_by_override';
 4067: 	    } elsif ($partial == 0) {
 4068: 		$score = 'incorrect_by_override';
 4069: 	    }
 4070: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
 4071: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
 4072: 
 4073: 	    $newrecord{'resource.'.$_.'.regrader'}=
 4074: 		"$env{'user.name'}:$env{'user.domain'}";
 4075: 	    if ($dropMenu eq 'reset status' &&
 4076: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
 4077: 		$newrecord{'resource.'.$_.'.tries'} = '';
 4078: 		$newrecord{'resource.'.$_.'.solved'} = '';
 4079: 		$newrecord{'resource.'.$_.'.award'} = '';
 4080: 		$newrecord{'resource.'.$_.'.awarded'} = '';
 4081: 		$updateflag = 1;
 4082:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
 4083:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
 4084:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
 4085:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
 4086:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 4087:                     $aggregateflag = 1;
 4088:                 }
 4089: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
 4090: 		$updateflag = 1;
 4091: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
 4092: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
 4093: 		$rec_update++;
 4094: 	    }
 4095: 
 4096: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 4097: 		'<td align="center">'.$awarded.
 4098: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
 4099: 
 4100: 
 4101: 	    my $partid=$_;
 4102: 	    foreach my $stores (@parts) {
 4103: 		my ($part,$type) = &split_part_type($stores);
 4104: 		if ($part !~ m/^\Q$partid\E/) { next;}
 4105: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
 4106: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
 4107: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
 4108: 		if ($awarded ne '' && $awarded ne $old_aw) {
 4109: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
 4110: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 4111: 		    $updateflag=1;
 4112: 		}
 4113: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 4114: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
 4115: 	    }
 4116: 	}
 4117: 	$line.="\n";
 4118: 
 4119: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 4120: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 4121: 
 4122: 	if ($updateflag) {
 4123: 	    $count++;
 4124: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
 4125: 				    $udom,$uname);
 4126: 
 4127: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
 4128: 					      $cnum,$udom,$uname)) {
 4129: 		# need to figure out if should be in queue.
 4130: 		my %record =  
 4131: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
 4132: 					     $udom,$uname);
 4133: 		my $all_graded = 1;
 4134: 		my $none_graded = 1;
 4135: 		foreach my $part (@parts) {
 4136: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
 4137: 			$all_graded = 0;
 4138: 		    } else {
 4139: 			$none_graded = 0;
 4140: 		    }
 4141: 		}
 4142: 
 4143: 		if ($all_graded || $none_graded) {
 4144: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 4145: 							   $symb,$cdom,$cnum,
 4146: 							   $udom,$uname);
 4147: 		}
 4148: 	    }
 4149: 
 4150: 	    $result.=&Apache::loncommon::start_data_table_row().
 4151: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 4152: 		&Apache::loncommon::end_data_table_row();
 4153: 	    $updateCtr++;
 4154: 	} else {
 4155: 	    push(@noupdate,
 4156: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
 4157: 	    $noupdateCtr++;
 4158: 	}
 4159:         if ($aggregateflag) {
 4160:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 4161: 				  $cdom,$cnum);
 4162:         }
 4163:     }
 4164:     if (@noupdate) {
 4165: #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
 4166: 	my $numcols=scalar(@partid)*4+2;
 4167: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
 4168: 	    '<td align="center" colspan="'.$numcols.'">'.
 4169: 	    &mt('No Changes Occurred For the Students Below').
 4170: 	    '</td>'.
 4171: 	    &Apache::loncommon::end_data_table_row();
 4172: 	foreach my $line (@noupdate) {
 4173: 	    $result.=
 4174: 		&Apache::loncommon::start_data_table_row().
 4175: 		$line.
 4176: 		&Apache::loncommon::end_data_table_row();
 4177: 	}
 4178:     }
 4179:     $result .= &Apache::loncommon::end_data_table().
 4180: 	&show_grading_menu_form($symb);
 4181:     my $msg = '<p><b>'.
 4182: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
 4183: 	    $rec_update,$count).'</b><br />'.
 4184: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
 4185: 	'</b></p>';
 4186:     return $title.$msg.$result;
 4187: }
 4188: 
 4189: sub split_part_type {
 4190:     my ($partstr) = @_;
 4191:     my ($temp,@allparts)=split(/_/,$partstr);
 4192:     my $type=pop(@allparts);
 4193:     my $part=join('_',@allparts);
 4194:     return ($part,$type);
 4195: }
 4196: 
 4197: #------------- end of section for handling grading by section/class ---------
 4198: #
 4199: #----------------------------------------------------------------------------
 4200: 
 4201: 
 4202: #----------------------------------------------------------------------------
 4203: #
 4204: #-------------------------- Next few routines handles grading by csv upload
 4205: #
 4206: #--- Javascript to handle csv upload
 4207: sub csvupload_javascript_reverse_associate {
 4208:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4209:     my $error2=&mt('You need to specify at least one grading field');
 4210:   return(<<ENDPICK);
 4211:   function verify(vf) {
 4212:     var foundsomething=0;
 4213:     var founduname=0;
 4214:     var foundID=0;
 4215:     for (i=0;i<=vf.nfields.value;i++) {
 4216:       tw=eval('vf.f'+i+'.selectedIndex');
 4217:       if (i==0 && tw!=0) { foundID=1; }
 4218:       if (i==1 && tw!=0) { founduname=1; }
 4219:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
 4220:     }
 4221:     if (founduname==0 && foundID==0) {
 4222: 	alert('$error1');
 4223: 	return;
 4224:     }
 4225:     if (foundsomething==0) {
 4226: 	alert('$error2');
 4227: 	return;
 4228:     }
 4229:     vf.submit();
 4230:   }
 4231:   function flip(vf,tf) {
 4232:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4233:     var i;
 4234:     for (i=0;i<=vf.nfields.value;i++) {
 4235:       //can not pick the same destination field for both name and domain
 4236:       if (((i ==0)||(i ==1)) && 
 4237:           ((tf==0)||(tf==1)) && 
 4238:           (i!=tf) &&
 4239:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4240:         eval('vf.f'+i+'.selectedIndex=0;')
 4241:       }
 4242:     }
 4243:   }
 4244: ENDPICK
 4245: }
 4246: 
 4247: sub csvupload_javascript_forward_associate {
 4248:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4249:     my $error2=&mt('You need to specify at least one grading field');
 4250:   return(<<ENDPICK);
 4251:   function verify(vf) {
 4252:     var foundsomething=0;
 4253:     var founduname=0;
 4254:     var foundID=0;
 4255:     for (i=0;i<=vf.nfields.value;i++) {
 4256:       tw=eval('vf.f'+i+'.selectedIndex');
 4257:       if (tw==1) { foundID=1; }
 4258:       if (tw==2) { founduname=1; }
 4259:       if (tw>3) { foundsomething=1; }
 4260:     }
 4261:     if (founduname==0 && foundID==0) {
 4262: 	alert('$error1');
 4263: 	return;
 4264:     }
 4265:     if (foundsomething==0) {
 4266: 	alert('$error2');
 4267: 	return;
 4268:     }
 4269:     vf.submit();
 4270:   }
 4271:   function flip(vf,tf) {
 4272:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4273:     var i;
 4274:     //can not pick the same destination field twice
 4275:     for (i=0;i<=vf.nfields.value;i++) {
 4276:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4277:         eval('vf.f'+i+'.selectedIndex=0;')
 4278:       }
 4279:     }
 4280:   }
 4281: ENDPICK
 4282: }
 4283: 
 4284: sub csvuploadmap_header {
 4285:     my ($request,$symb,$datatoken,$distotal)= @_;
 4286:     my $javascript;
 4287:     if ($env{'form.upfile_associate'} eq 'reverse') {
 4288: 	$javascript=&csvupload_javascript_reverse_associate();
 4289:     } else {
 4290: 	$javascript=&csvupload_javascript_forward_associate();
 4291:     }
 4292: 
 4293:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 4294:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
 4295:     my $ignore=&mt('Ignore First Line');
 4296:     $symb = &Apache::lonenc::check_encrypt($symb);
 4297:     $request->print(<<ENDPICK);
 4298: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4299: <h3><span class="LC_info">Uploading Class Grades</span></h3>
 4300: $result
 4301: <hr />
 4302: <h3>Identify fields</h3>
 4303: Total number of records found in file: $distotal <hr />
 4304: Enter as many fields as you can. The system will inform you and bring you back
 4305: to this page if the data selected is insufficient to run your class.<hr />
 4306: <input type="button" value="Reverse Association" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
 4307: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 4308: <input type="hidden" name="associate"  value="" />
 4309: <input type="hidden" name="phase"      value="three" />
 4310: <input type="hidden" name="datatoken"  value="$datatoken" />
 4311: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 4312: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 4313: <input type="hidden" name="upfile_associate" 
 4314:                                        value="$env{'form.upfile_associate'}" />
 4315: <input type="hidden" name="symb"       value="$symb" />
 4316: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4317: <input type="hidden" name="probTitle"  value="$env{'form.probTitle'}" />
 4318: <input type="hidden" name="command"    value="csvuploadoptions" />
 4319: <hr />
 4320: <script type="text/javascript" language="Javascript">
 4321: $javascript
 4322: </script>
 4323: ENDPICK
 4324:     return '';
 4325: 
 4326: }
 4327: 
 4328: sub csvupload_fields {
 4329:     my ($symb,$errorref) = @_;
 4330:     my (@parts) = &getpartlist($symb,$errorref);
 4331:     if (ref($errorref)) {
 4332:         if ($$errorref) {
 4333:             return;
 4334:         }
 4335:     }
 4336: 
 4337:     my @fields=(['ID','Student/Employee ID'],
 4338: 		['username','Student Username'],
 4339: 		['domain','Student Domain']);
 4340:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4341:     foreach my $part (sort(@parts)) {
 4342: 	my @datum;
 4343: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 4344: 	my $name=$part;
 4345: 	if  (!$display) { $display = $name; }
 4346: 	@datum=($name,$display);
 4347: 	if ($name=~/^stores_(.*)_awarded/) {
 4348: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
 4349: 	}
 4350: 	push(@fields,\@datum);
 4351:     }
 4352:     return (@fields);
 4353: }
 4354: 
 4355: sub csvuploadmap_footer {
 4356:     my ($request,$i,$keyfields) =@_;
 4357:     my $buttontext = &mt('Assign Grades');
 4358:     $request->print(<<ENDPICK);
 4359: </table>
 4360: <input type="hidden" name="nfields" value="$i" />
 4361: <input type="hidden" name="keyfields" value="$keyfields" />
 4362: <input type="button" onclick="javascript:verify(this.form)" value="$buttontext" /><br />
 4363: </form>
 4364: ENDPICK
 4365: }
 4366: 
 4367: sub checkforfile_js {
 4368:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 4369:     my $result =<<CSVFORMJS;
 4370: <script type="text/javascript" language="javascript">
 4371:     function checkUpload(formname) {
 4372: 	if (formname.upfile.value == "") {
 4373: 	    alert("$alertmsg");
 4374: 	    return false;
 4375: 	}
 4376: 	formname.submit();
 4377:     }
 4378:     </script>
 4379: CSVFORMJS
 4380:     return $result;
 4381: }
 4382: 
 4383: sub upcsvScores_form {
 4384:     my ($request) = shift;
 4385:     my ($symb)=&get_symb($request);
 4386:     if (!$symb) {return '';}
 4387:     my $result=&checkforfile_js();
 4388:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 4389:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 4390:     $result.=$table;
 4391:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 4392:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 4393:     $result.='&nbsp;<b>'.&mt('Specify a file containing the class scores for current resource.').
 4394: 	'</b></td></tr>'."\n";
 4395:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
 4396:     my $upload=&mt("Upload Scores");
 4397:     my $upfile_select=&Apache::loncommon::upfile_select_html();
 4398:     my $ignore=&mt('Ignore First Line');
 4399:     $symb = &Apache::lonenc::check_encrypt($symb);
 4400:     $result.=<<ENDUPFORM;
 4401: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4402: <input type="hidden" name="symb" value="$symb" />
 4403: <input type="hidden" name="command" value="csvuploadmap" />
 4404: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 4405: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4406: $upfile_select
 4407: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 4408: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
 4409: </form>
 4410: ENDUPFORM
 4411:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 4412:                            &mt("How do I create a CSV file from a spreadsheet"))
 4413:     .'</td></tr></table>'."\n";
 4414:     $result.='</td></tr></table><br /><br />'."\n";
 4415:     $result.=&show_grading_menu_form($symb);
 4416:     return $result;
 4417: }
 4418: 
 4419: 
 4420: sub csvuploadmap {
 4421:     my ($request)= @_;
 4422:     my ($symb)=&get_symb($request);
 4423:     if (!$symb) {return '';}
 4424: 
 4425:     my $datatoken;
 4426:     if (!$env{'form.datatoken'}) {
 4427: 	$datatoken=&Apache::loncommon::upfile_store($request);
 4428:     } else {
 4429: 	$datatoken=$env{'form.datatoken'};
 4430: 	&Apache::loncommon::load_tmp_file($request);
 4431:     }
 4432:     my @records=&Apache::loncommon::upfile_record_sep();
 4433:     if ($env{'form.noFirstLine'}) { shift(@records); }
 4434:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
 4435:     my ($i,$keyfields);
 4436:     if (@records) {
 4437:         my $fieldserror;
 4438: 	my @fields=&csvupload_fields($symb,\$fieldserror);
 4439:         if ($fieldserror) {
 4440:             $request->print(&navmap_errormsg());
 4441:             return;
 4442:         }
 4443: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 4444: 	    &Apache::loncommon::csv_print_samples($request,\@records);
 4445: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
 4446: 							  \@fields);
 4447: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 4448: 	    chop($keyfields);
 4449: 	} else {
 4450: 	    unshift(@fields,['none','']);
 4451: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
 4452: 							    \@fields);
 4453:             foreach my $rec (@records) {
 4454:                 my %temp = &Apache::loncommon::record_sep($rec);
 4455:                 if (%temp) {
 4456:                     $keyfields=join(',',sort(keys(%temp)));
 4457:                     last;
 4458:                 }
 4459:             }
 4460: 	}
 4461:     }
 4462:     &csvuploadmap_footer($request,$i,$keyfields);
 4463:     $request->print(&show_grading_menu_form($symb));
 4464: 
 4465:     return '';
 4466: }
 4467: 
 4468: sub csvuploadoptions {
 4469:     my ($request)= @_;
 4470:     my ($symb)=&get_symb($request);
 4471:     my $checked=(($env{'form.noFirstLine'})?'1':'0');
 4472:     my $ignore=&mt('Ignore First Line');
 4473:     $request->print(<<ENDPICK);
 4474: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4475: <h3><span class="LC_info">Uploading Class Grade Options</span></h3>
 4476: <input type="hidden" name="command"    value="csvuploadassign" />
 4477: <!--
 4478: <p>
 4479: <label>
 4480:    <input type="checkbox" name="show_full_results" />
 4481:    Show a table of all changes
 4482: </label>
 4483: </p>
 4484: -->
 4485: <p>
 4486: <label>
 4487:    <input type="checkbox" name="overwite_scores" checked="checked" />
 4488:    Overwrite any existing score
 4489: </label>
 4490: </p>
 4491: ENDPICK
 4492:     my %fields=&get_fields();
 4493:     if (!defined($fields{'domain'})) {
 4494: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
 4495: 	$request->print("\n<p> Users are in domain: ".$domform."</p>\n");
 4496:     }
 4497:     foreach my $key (sort(keys(%env))) {
 4498: 	if ($key !~ /^form\.(.*)$/) { next; }
 4499: 	my $cleankey=$1;
 4500: 	if ($cleankey eq 'command') { next; }
 4501: 	$request->print('<input type="hidden" name="'.$cleankey.
 4502: 			'"  value="'.$env{$key}.'" />'."\n");
 4503:     }
 4504:     # FIXME do a check for any duplicated user ids...
 4505:     # FIXME do a check for any invalid user ids?...
 4506:     $request->print('<input type="submit" value="'.&mt('Assign Grades').'" /><br />
 4507: <hr /></form>'."\n");
 4508:     $request->print(&show_grading_menu_form($symb));
 4509:     return '';
 4510: }
 4511: 
 4512: sub get_fields {
 4513:     my %fields;
 4514:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 4515:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 4516: 	if ($env{'form.upfile_associate'} eq 'reverse') {
 4517: 	    if ($env{'form.f'.$i} ne 'none') {
 4518: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
 4519: 	    }
 4520: 	} else {
 4521: 	    if ($env{'form.f'.$i} ne 'none') {
 4522: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
 4523: 	    }
 4524: 	}
 4525:     }
 4526:     return %fields;
 4527: }
 4528: 
 4529: sub csvuploadassign {
 4530:     my ($request)= @_;
 4531:     my ($symb)=&get_symb($request);
 4532:     if (!$symb) {return '';}
 4533:     my $error_msg = '';
 4534:     &Apache::loncommon::load_tmp_file($request);
 4535:     my @gradedata = &Apache::loncommon::upfile_record_sep();
 4536:     if ($env{'form.noFirstLine'}) { shift(@gradedata); }
 4537:     my %fields=&get_fields();
 4538:     $request->print('<h3>Assigning Grades</h3>');
 4539:     my $courseid=$env{'request.course.id'};
 4540:     my ($classlist) = &getclasslist('all',0);
 4541:     my @notallowed;
 4542:     my @skipped;
 4543:     my @warnings;
 4544:     my $countdone=0;
 4545:     foreach my $grade (@gradedata) {
 4546: 	my %entries=&Apache::loncommon::record_sep($grade);
 4547: 	my $domain;
 4548: 	if ($entries{$fields{'domain'}}) {
 4549: 	    $domain=$entries{$fields{'domain'}};
 4550: 	} else {
 4551: 	    $domain=$env{'form.default_domain'};
 4552: 	}
 4553: 	$domain=~s/\s//g;
 4554: 	my $username=$entries{$fields{'username'}};
 4555: 	$username=~s/\s//g;
 4556: 	if (!$username) {
 4557: 	    my $id=$entries{$fields{'ID'}};
 4558: 	    $id=~s/\s//g;
 4559: 	    my %ids=&Apache::lonnet::idget($domain,$id);
 4560: 	    $username=$ids{$id};
 4561: 	}
 4562: 	if (!exists($$classlist{"$username:$domain"})) {
 4563: 	    my $id=$entries{$fields{'ID'}};
 4564: 	    $id=~s/\s//g;
 4565: 	    if ($id) {
 4566: 		push(@skipped,"$id:$domain");
 4567: 	    } else {
 4568: 		push(@skipped,"$username:$domain");
 4569: 	    }
 4570: 	    next;
 4571: 	}
 4572: 	my $usec=$classlist->{"$username:$domain"}[5];
 4573: 	if (!&canmodify($usec)) {
 4574: 	    push(@notallowed,"$username:$domain");
 4575: 	    next;
 4576: 	}
 4577: 	my %points;
 4578: 	my %grades;
 4579: 	foreach my $dest (keys(%fields)) {
 4580: 	    if ($dest eq 'ID' || $dest eq 'username' ||
 4581: 		$dest eq 'domain') { next; }
 4582: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
 4583: 	    if ($dest=~/stores_(.*)_points/) {
 4584: 		my $part=$1;
 4585: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 4586: 					      $symb,$domain,$username);
 4587:                 if ($wgt) {
 4588:                     $entries{$fields{$dest}}=~s/\s//g;
 4589:                     my $pcr=$entries{$fields{$dest}} / $wgt;
 4590:                     my $award=($pcr == 0) ? 'incorrect_by_override'
 4591:                                           : 'correct_by_override';
 4592:                     if ($pcr>1) {
 4593:                         push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
 4594:                     }
 4595:                     $grades{"resource.$part.awarded"}=$pcr;
 4596:                     $grades{"resource.$part.solved"}=$award;
 4597:                     $points{$part}=1;
 4598:                 } else {
 4599:                     $error_msg = "<br />" .
 4600:                         &mt("Some point values were assigned"
 4601:                             ." for problems with a weight "
 4602:                             ."of zero. These values were "
 4603:                             ."ignored.");
 4604:                 }
 4605: 	    } else {
 4606: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 4607: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 4608: 		my $store_key=$dest;
 4609: 		$store_key=~s/^stores/resource/;
 4610: 		$store_key=~s/_/\./g;
 4611: 		$grades{$store_key}=$entries{$fields{$dest}};
 4612: 	    }
 4613: 	}
 4614: 	if (! %grades) { 
 4615:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
 4616:         } else {
 4617: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 4618: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
 4619: 					   $env{'request.course.id'},
 4620: 					   $domain,$username);
 4621: 	   if ($result eq 'ok') {
 4622: 	      $request->print('.');
 4623: # Remove from grading queue
 4624:               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
 4625:                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
 4626:                                              $env{'course.'.$env{'request.course.id'}.'.num'},
 4627:                                              $domain,$username);
 4628: 	   } else {
 4629: 	      $request->print("<p><span class=\"LC_error\">".
 4630:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
 4631:                                   "$username:$domain",$result)."</span></p>");
 4632: 	   }
 4633: 	   $request->rflush();
 4634: 	   $countdone++;
 4635:         }
 4636:     }
 4637:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
 4638:     if (@warnings) {
 4639:         $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
 4640:         $request->print(join(', ',@warnings));
 4641:     }
 4642:     if (@skipped) {
 4643: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
 4644:         $request->print(join(', ',@skipped));
 4645:     }
 4646:     if (@notallowed) {
 4647: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
 4648: 	$request->print(join(', ',@notallowed));
 4649:     }
 4650:     $request->print("<br />\n");
 4651:     $request->print(&show_grading_menu_form($symb));
 4652:     return $error_msg;
 4653: }
 4654: #------------- end of section for handling csv file upload ---------
 4655: #
 4656: #-------------------------------------------------------------------
 4657: #
 4658: #-------------- Next few routines handle grading by page/sequence
 4659: #
 4660: #--- Select a page/sequence and a student to grade
 4661: sub pickStudentPage {
 4662:     my ($request) = shift;
 4663: 
 4664:     my $alertmsg = &mt('Please select the student you wish to grade.');
 4665:     $request->print(<<LISTJAVASCRIPT);
 4666: <script type="text/javascript" language="javascript">
 4667: 
 4668: function checkPickOne(formname) {
 4669:     if (radioSelection(formname.student) == null) {
 4670: 	alert("$alertmsg");
 4671: 	return;
 4672:     }
 4673:     ptr = pullDownSelection(formname.selectpage);
 4674:     formname.page.value = formname["page"+ptr].value;
 4675:     formname.title.value = formname["title"+ptr].value;
 4676:     formname.submit();
 4677: }
 4678: 
 4679: </script>
 4680: LISTJAVASCRIPT
 4681:     &commonJSfunctions($request);
 4682:     my ($symb) = &get_symb($request);
 4683:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4684:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4685:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4686: 
 4687:     my $result='<h3><span class="LC_info">&nbsp;'.
 4688: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
 4689: 
 4690:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
 4691:     my $map_error;
 4692:     my ($titles,$symbx) = &getSymbMap($map_error);
 4693:     if ($map_error) {
 4694:         $request->print(&navmap_errormsg());
 4695:         return; 
 4696:     }
 4697:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 4698: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 4699: #    my $type=($curpage =~ /\.(page|sequence)/);
 4700:     my $select = '<select name="selectpage">'."\n";
 4701:     my $ctr=0;
 4702:     foreach (@$titles) {
 4703: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4704: 	$select.='<option value="'.$ctr.'" '.
 4705: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 4706: 	    '>'.$showtitle.'</option>'."\n";
 4707: 	$ctr++;
 4708:     }
 4709:     $select.= '</select>';
 4710:     $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
 4711: 
 4712:     $ctr=0;
 4713:     foreach (@$titles) {
 4714: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4715: 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
 4716: 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
 4717: 	$ctr++;
 4718:     }
 4719:     $result.='<input type="hidden" name="page" />'."\n".
 4720: 	'<input type="hidden" name="title" />'."\n";
 4721: 
 4722:     my $options =
 4723: 	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
 4724: 	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
 4725:     $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
 4726: 
 4727:     $options =
 4728: 	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
 4729: 	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
 4730: 	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
 4731:     $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
 4732:     
 4733:     $result.=&build_section_inputs();
 4734:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 4735:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
 4736: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
 4737: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4738: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."<br />\n";
 4739: 
 4740:     $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
 4741: 
 4742:     $result.='&nbsp;<input type="button" '.
 4743:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 4744: 
 4745:     $request->print($result);
 4746: 
 4747:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
 4748: 	&Apache::loncommon::start_data_table().
 4749: 	&Apache::loncommon::start_data_table_header_row().
 4750: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4751: 	'<th>'.&nameUserString('header').'</th>'.
 4752: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4753: 	'<th>'.&nameUserString('header').'</th>'.
 4754: 	&Apache::loncommon::end_data_table_header_row();
 4755:  
 4756:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
 4757:     my $ptr = 1;
 4758:     foreach my $student (sort 
 4759: 			 {
 4760: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 4761: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 4762: 			     }
 4763: 			     return $a cmp $b;
 4764: 			 } (keys(%$fullname))) {
 4765: 	my ($uname,$udom) = split(/:/,$student);
 4766: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
 4767:                                   : '</td>');
 4768: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
 4769: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
 4770: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
 4771: 	$studentTable.=
 4772: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
 4773:                          : '');
 4774: 	$ptr++;
 4775:     }
 4776:     if ($ptr%2 == 0) {
 4777: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
 4778: 	    &Apache::loncommon::end_data_table_row();
 4779:     }
 4780:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
 4781:     $studentTable.='<input type="button" '.
 4782:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
 4783: 
 4784:     $studentTable.=&show_grading_menu_form($symb);
 4785:     $request->print($studentTable);
 4786: 
 4787:     return '';
 4788: }
 4789: 
 4790: sub getSymbMap {
 4791:     my ($map_error) = @_;
 4792:     my $navmap = Apache::lonnavmaps::navmap->new();
 4793:     unless (ref($navmap)) {
 4794:         if (ref($map_error)) {
 4795:             $$map_error = 'navmap';
 4796:         }
 4797:         return;
 4798:     }
 4799:     my %symbx = ();
 4800:     my @titles = ();
 4801:     my $minder = 0;
 4802: 
 4803:     # Gather every sequence that has problems.
 4804:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 4805: 					       1,0,1);
 4806:     for my $sequence ($navmap->getById('0.0'), @sequences) {
 4807: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
 4808: 	    my $title = $minder.'.'.
 4809: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 4810: 	    push(@titles, $title); # minder in case two titles are identical
 4811: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
 4812: 	    $minder++;
 4813: 	}
 4814:     }
 4815:     return \@titles,\%symbx;
 4816: }
 4817: 
 4818: #
 4819: #--- Displays a page/sequence w/wo problems, w/wo submissions
 4820: sub displayPage {
 4821:     my ($request) = shift;
 4822: 
 4823:     my ($symb) = &get_symb($request);
 4824:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4825:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4826:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4827:     my $pageTitle = $env{'form.page'};
 4828:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4829:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4830:     my $usec=$classlist->{$env{'form.student'}}[5];
 4831: 
 4832:     #need to make sure we have the correct data for later EXT calls, 
 4833:     #thus invalidate the cache
 4834:     &Apache::lonnet::devalidatecourseresdata(
 4835:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 4836:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 4837:     &Apache::lonnet::clear_EXT_cache_status();
 4838: 
 4839:     if (!&canview($usec)) {
 4840: 	$request->print('<span class="LC_warning">'.
 4841:                         &mt('Unable to view requested student. ([_1])',
 4842:                             $env{'form.student'}).
 4843:                         '</span>');
 4844:         $request->print(&show_grading_menu_form($symb));
 4845:         return;
 4846:     }
 4847:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4848:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
 4849: 	'</h3>'."\n";
 4850:     $env{'form.CODE'} = uc($env{'form.CODE'});
 4851:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
 4852: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
 4853:     } else {
 4854: 	delete($env{'form.CODE'});
 4855:     }
 4856:     &sub_page_js($request);
 4857:     $request->print($result);
 4858: 
 4859:     my $navmap = Apache::lonnavmaps::navmap->new();
 4860:     unless (ref($navmap)) {
 4861:         $request->print(&navmap_errormsg());
 4862:         $request->print(&show_grading_menu_form($symb));
 4863:         return;
 4864:     }
 4865:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
 4866:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4867:     if (!$map) {
 4868: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
 4869: 	$request->print(&show_grading_menu_form($symb));
 4870: 	return; 
 4871:     }
 4872:     my $iterator = $navmap->getIterator($map->map_start(),
 4873: 					$map->map_finish());
 4874: 
 4875:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
 4876: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
 4877: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
 4878: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
 4879: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
 4880: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
 4881: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4882: 	'<input type="hidden" name="overRideScore" value="no" />'."\n".
 4883: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n";
 4884: 
 4885:     if (defined($env{'form.CODE'})) {
 4886: 	$studentTable.=
 4887: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
 4888:     }
 4889:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 4890: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 4891: 
 4892:     $studentTable.='&nbsp;<span class="LC_info">'.
 4893:         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
 4894:         '</span>'."\n".
 4895: 	&Apache::loncommon::start_data_table().
 4896: 	&Apache::loncommon::start_data_table_header_row().
 4897: 	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
 4898: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 4899: 	&Apache::loncommon::end_data_table_header_row();
 4900: 
 4901:     &Apache::lonxml::clear_problem_counter();
 4902:     my ($depth,$question,$prob) = (1,1,1);
 4903:     $iterator->next(); # skip the first BEGIN_MAP
 4904:     my $curRes = $iterator->next(); # for "current resource"
 4905:     while ($depth > 0) {
 4906:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4907:         if($curRes == $iterator->END_MAP) { $depth--; }
 4908: 
 4909:         if (ref($curRes) && $curRes->is_problem()) {
 4910: 	    my $parts = $curRes->parts();
 4911:             my $title = $curRes->compTitle();
 4912: 	    my $symbx = $curRes->symb();
 4913: 	    $studentTable.=
 4914: 		&Apache::loncommon::start_data_table_row().
 4915: 		'<td align="center" valign="top" >'.$prob.
 4916: 		(scalar(@{$parts}) == 1 ? '' 
 4917: 		                        : '<br />('.&mt('[_1]parts',
 4918: 							scalar(@{$parts}).'&nbsp;').')'
 4919: 		 ).
 4920: 		 '</td>';
 4921: 	    $studentTable.='<td valign="top">';
 4922: 	    my %form = ('CODE' => $env{'form.CODE'},);
 4923: 	    if ($env{'form.vProb'} eq 'yes' ) {
 4924: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
 4925: 					     undef,'both',\%form);
 4926: 	    } else {
 4927: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
 4928: 		$companswer =~ s|<form(.*?)>||g;
 4929: 		$companswer =~ s|</form>||g;
 4930: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
 4931: #		    $companswer =~ s/$1/ /ms;
 4932: #		    $request->print('match='.$1."<br />\n");
 4933: #		}
 4934: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
 4935: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
 4936: 	    }
 4937: 
 4938: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 4939: 
 4940: 	    if ($env{'form.lastSub'} eq 'datesub') {
 4941: 		if ($record{'version'} eq '') {
 4942: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
 4943: 		} else {
 4944: 		    my %responseType = ();
 4945: 		    foreach my $partid (@{$parts}) {
 4946: 			my @responseIds =$curRes->responseIds($partid);
 4947: 			my @responseType =$curRes->responseType($partid);
 4948: 			my %responseIds;
 4949: 			for (my $i=0;$i<=$#responseIds;$i++) {
 4950: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
 4951: 			}
 4952: 			$responseType{$partid} = \%responseIds;
 4953: 		    }
 4954: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
 4955: 
 4956: 		}
 4957: 	    } elsif ($env{'form.lastSub'} eq 'all') {
 4958: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 4959:                 my $identifier = (&canmodify($usec)? $prob : '');
 4960: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 4961: 									$env{'request.course.id'},
 4962: 									'','.submission',undef,
 4963:                                                                         $usec,$identifier);
 4964:  
 4965: 	    }
 4966: 	    if (&canmodify($usec)) {
 4967:             $studentTable.=&gradeBox_start();
 4968: 		foreach my $partid (@{$parts}) {
 4969: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
 4970: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
 4971: 		    $question++;
 4972: 		}
 4973:             $studentTable.=&gradeBox_end();
 4974: 		$prob++;
 4975: 	    }
 4976: 	    $studentTable.='</td></tr>';
 4977: 
 4978: 	}
 4979:         $curRes = $iterator->next();
 4980:     }
 4981: 
 4982:     $studentTable.=
 4983:         '</table>'."\n".
 4984:         '<input type="button" value="'.&mt('Save').'" '.
 4985:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
 4986:         '</form>'."\n";
 4987:     $studentTable.=&show_grading_menu_form($symb);
 4988:     $request->print($studentTable);
 4989: 
 4990:     return '';
 4991: }
 4992: 
 4993: sub displaySubByDates {
 4994:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
 4995:     my $isCODE=0;
 4996:     my $isTask = ($symb =~/\.task$/);
 4997:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
 4998:     my $studentTable=&Apache::loncommon::start_data_table().
 4999: 	&Apache::loncommon::start_data_table_header_row().
 5000: 	'<th>'.&mt('Date/Time').'</th>'.
 5001: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
 5002:         ($isTask?'<th>'.&mt('Version').'</th>':'').
 5003: 	'<th>'.&mt('Submission').'</th>'.
 5004: 	'<th>'.&mt('Status').'</th>'.
 5005: 	&Apache::loncommon::end_data_table_header_row();
 5006:     my ($version);
 5007:     my %mark;
 5008:     my %orders;
 5009:     $mark{'correct_by_student'} = $checkIcon;
 5010:     if (!exists($$record{'1:timestamp'})) {
 5011: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
 5012:     }
 5013: 
 5014:     my $interaction;
 5015:     my $no_increment = 1;
 5016:     my %lastrndseed;
 5017:     for ($version=1;$version<=$$record{'version'};$version++) {
 5018: 	my $timestamp = 
 5019: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 5020: 	if (exists($$record{$version.':resource.0.version'})) {
 5021: 	    $interaction = $$record{$version.':resource.0.version'};
 5022: 	}
 5023:         if ($isTask && $env{'form.previousversion'}) {
 5024:             next unless ($interaction == $env{'form.previousversion'});
 5025:         }
 5026: 	my $where = ($isTask ? "$version:resource.$interaction"
 5027: 		             : "$version:resource");
 5028: 	$studentTable.=&Apache::loncommon::start_data_table_row().
 5029: 	    '<td>'.$timestamp.'</td>';
 5030: 	if ($isCODE) {
 5031: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 5032: 	}
 5033:         if ($isTask) {
 5034:             $studentTable.='<td>'.$interaction.'</td>';
 5035:         }
 5036: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 5037: 	my @displaySub = ();
 5038: 	foreach my $partid (@{$parts}) {
 5039:             my ($hidden,$type);
 5040:             $type = $$record{$version.':resource.'.$partid.'.type'};
 5041:             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
 5042:                 $hidden = 1;
 5043:             }
 5044: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
 5045: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
 5046: 	    
 5047: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 5048: 	    my $display_part=&get_display_part($partid,$symb);
 5049: 	    foreach my $matchKey (@matchKey) {
 5050: 		if (exists($$record{$version.':'.$matchKey}) &&
 5051: 		    $$record{$version.':'.$matchKey} ne '') {
 5052:                     
 5053: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 5054: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
 5055:                     $displaySub[0].='<span class="LC_nobreak">';
 5056:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
 5057:                                    .' <span class="LC_internal_info">'
 5058:                                    .'('.&mt('Response ID: [_1]',$responseId).')'
 5059:                                    .'</span>'
 5060:                                    .' <b>';
 5061:                     if ($hidden) {
 5062:                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
 5063:                     } else {
 5064:                         my ($trial,$rndseed,$newvariation);
 5065:                         if ($type eq 'randomizetry') {
 5066:                             $trial = $$record{"$where.$partid.tries"};
 5067:                             $rndseed = $$record{"$where.$partid.rndseed"};
 5068:                         }
 5069: 		        if ($$record{"$where.$partid.tries"} eq '') {
 5070: 			    $displaySub[0].=&mt('Trial not counted');
 5071: 		        } else {
 5072: 			    $displaySub[0].=&mt('Trial: [_1]',
 5073: 					    $$record{"$where.$partid.tries"});
 5074:                             if ($rndseed || $lastrndseed{$partid}) {
 5075:                                 if ($rndseed ne $lastrndseed{$partid}) {
 5076:                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
 5077:                                 }
 5078:                             }
 5079: 		        }
 5080: 		        my $responseType=($isTask ? 'Task'
 5081:                                               : $responseType->{$partid}->{$responseId});
 5082: 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
 5083: 		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
 5084: 			    $orders{$partid}->{$responseId}=
 5085: 			        &get_order($partid,$responseId,$symb,$uname,$udom,
 5086:                                            $no_increment,$type,$trial,$rndseed);
 5087: 		        }
 5088: 		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
 5089: 		        $displaySub[0].='&nbsp; '.
 5090: 			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
 5091:                     }
 5092: 		}
 5093: 	    }
 5094: 	    if (exists($$record{"$where.$partid.checkedin"})) {
 5095: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
 5096: 				    $$record{"$where.$partid.checkedin"},
 5097: 				    $$record{"$where.$partid.checkedin.slot"}).
 5098: 					'<br />';
 5099: 	    }
 5100: 	    if (exists $$record{"$where.$partid.award"}) {
 5101: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
 5102: 		    lc($$record{"$where.$partid.award"}).' '.
 5103: 		    $mark{$$record{"$where.$partid.solved"}}.
 5104: 		    '<br />';
 5105: 	    }
 5106: 	    if (exists $$record{"$where.$partid.regrader"}) {
 5107: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
 5108: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 5109: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 5110: 		$displaySub[2].=
 5111: 		    $$record{"$version:resource.$partid.regrader"}.
 5112: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 5113: 	    }
 5114: 	}
 5115: 	# needed because old essay regrader has not parts info
 5116: 	if (exists $$record{"$version:resource.regrader"}) {
 5117: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
 5118: 	}
 5119: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
 5120: 	if ($displaySub[2]) {
 5121: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
 5122: 	}
 5123: 	$studentTable.='&nbsp;</td>'.
 5124: 	    &Apache::loncommon::end_data_table_row();
 5125:     }
 5126:     $studentTable.=&Apache::loncommon::end_data_table();
 5127:     return $studentTable;
 5128: }
 5129: 
 5130: sub updateGradeByPage {
 5131:     my ($request) = shift;
 5132: 
 5133:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 5134:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 5135:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 5136:     my $pageTitle = $env{'form.page'};
 5137:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 5138:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 5139:     my $usec=$classlist->{$env{'form.student'}}[5];
 5140:     if (!&canmodify($usec)) {
 5141: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
 5142: 	$request->print(&show_grading_menu_form($env{'form.symb'}));
 5143: 	return;
 5144:     }
 5145:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 5146:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 5147: 	'</h3>'."\n";
 5148: 
 5149:     $request->print($result);
 5150: 
 5151: 
 5152:     my $navmap = Apache::lonnavmaps::navmap->new();
 5153:     unless (ref($navmap)) {
 5154:         $request->print(&navmap_errormsg());
 5155:         return;
 5156:     }
 5157:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
 5158:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 5159:     if (!$map) {
 5160: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
 5161: 	my ($symb)=&get_symb($request);
 5162: 	$request->print(&show_grading_menu_form($symb));
 5163: 	return; 
 5164:     }
 5165:     my $iterator = $navmap->getIterator($map->map_start(),
 5166: 					$map->map_finish());
 5167: 
 5168:     my $studentTable=
 5169: 	&Apache::loncommon::start_data_table().
 5170: 	&Apache::loncommon::start_data_table_header_row().
 5171: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
 5172: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
 5173: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
 5174: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
 5175: 	&Apache::loncommon::end_data_table_header_row();
 5176: 
 5177:     $iterator->next(); # skip the first BEGIN_MAP
 5178:     my $curRes = $iterator->next(); # for "current resource"
 5179:     my ($depth,$question,$prob,$changeflag,$hideflag)= (1,1,1,0,0);
 5180:     while ($depth > 0) {
 5181:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 5182:         if($curRes == $iterator->END_MAP) { $depth--; }
 5183: 
 5184:         if (ref($curRes) && $curRes->is_problem()) {
 5185: 	    my $parts = $curRes->parts();
 5186:             my $title = $curRes->compTitle();
 5187: 	    my $symbx = $curRes->symb();
 5188: 	    $studentTable.=
 5189: 		&Apache::loncommon::start_data_table_row().
 5190: 		'<td align="center" valign="top" >'.$prob.
 5191: 		(scalar(@{$parts}) == 1 ? '' 
 5192:                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
 5193: 		.')').'</td>';
 5194: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 5195: 
 5196: 	    my %newrecord=();
 5197: 	    my @displayPts=();
 5198:             my %aggregate = ();
 5199:             my $aggregateflag = 0;
 5200:             if ($env{'form.HIDE'.$prob}) {
 5201:                 my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 5202:                 my ($version,$parts) = split(/:/,$env{'form.HIDE'.$prob},2);
 5203:                 my $numchgs = &makehidden($version,$parts,\%record,$symbx,$udom,$uname,1);
 5204:                 $hideflag += $numchgs;
 5205:             }
 5206: 	    foreach my $partid (@{$parts}) {
 5207: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 5208: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
 5209: 
 5210: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 5211: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
 5212: 		my $partial = $newpts/$wgt;
 5213: 		my $score;
 5214: 		if ($partial > 0) {
 5215: 		    $score = 'correct_by_override';
 5216: 		} elsif ($newpts ne '') { #empty is taken as 0
 5217: 		    $score = 'incorrect_by_override';
 5218: 		}
 5219: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
 5220: 		if ($dropMenu eq 'excused') {
 5221: 		    $partial = '';
 5222: 		    $score = 'excused';
 5223: 		} elsif ($dropMenu eq 'reset status'
 5224: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 5225: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
 5226: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
 5227: 		    $newrecord{'resource.'.$partid.'.award'} = '';
 5228: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
 5229: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
 5230: 		    $changeflag++;
 5231: 		    $newpts = '';
 5232:                     
 5233:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
 5234:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
 5235:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
 5236:                     if ($aggtries > 0) {
 5237:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 5238:                         $aggregateflag = 1;
 5239:                     }
 5240: 		}
 5241: 		my $display_part=&get_display_part($partid,$curRes->symb());
 5242: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
 5243: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5244: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
 5245: 		    '&nbsp;<br />';
 5246: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5247: 		     (($score eq 'excused') ? 'excused' : $newpts).
 5248: 		    '&nbsp;<br />';
 5249: 		$question++;
 5250: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 5251: 
 5252: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
 5253: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
 5254: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
 5255: 		    if (scalar(keys(%newrecord)) > 0);
 5256: 
 5257: 		$changeflag++;
 5258: 	    }
 5259: 	    if (scalar(keys(%newrecord)) > 0) {
 5260: 		my %record = 
 5261: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
 5262: 					     $udom,$uname);
 5263: 
 5264: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
 5265: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
 5266: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
 5267: 		    $newrecord{'resource.CODE'} = '';
 5268: 		}
 5269: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
 5270: 					$udom,$uname);
 5271: 		%record = &Apache::lonnet::restore($symbx,
 5272: 						   $env{'request.course.id'},
 5273: 						   $udom,$uname);
 5274: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
 5275: 					     $cdom,$cnum,$udom,$uname);
 5276: 	    }
 5277: 	    
 5278:             if ($aggregateflag) {
 5279:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 5280:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
 5281:                       $env{'course.'.$env{'request.course.id'}.'.num'});
 5282:             }
 5283: 
 5284: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
 5285: 		'<td valign="top">'.$displayPts[1].'</td>'.
 5286: 		&Apache::loncommon::end_data_table_row();
 5287: 
 5288: 	    $prob++;
 5289: 	}
 5290:         $curRes = $iterator->next();
 5291:     }
 5292: 
 5293:     $studentTable.=&Apache::loncommon::end_data_table();
 5294:     $studentTable.=&show_grading_menu_form($env{'form.symb'});
 5295:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 5296: 		  &mt('The scores were changed for [quant,_1,problem].',
 5297: 		  $changeflag).'<br />');
 5298:     my $hidemsg=($hideflag == 0 ? '' :
 5299:                  &mt('Submissions were marked "hidden" for [quant,_1,transaction].',
 5300:                      $hideflag).'<br />');
 5301:     $request->print($hidemsg.$grademsg.$studentTable);
 5302: 
 5303:     return '';
 5304: }
 5305: 
 5306: #-------- end of section for handling grading by page/sequence ---------
 5307: #
 5308: #-------------------------------------------------------------------
 5309: 
 5310: #-------------------- Bubblesheet (Scantron) Grading -------------------
 5311: #
 5312: #------ start of section for handling grading by page/sequence ---------
 5313: 
 5314: =pod
 5315: 
 5316: =head1 Bubble sheet grading routines
 5317: 
 5318:   For this documentation:
 5319: 
 5320:    'scanline' refers to the full line of characters
 5321:    from the file that we are parsing that represents one entire sheet
 5322: 
 5323:    'bubble line' refers to the data
 5324:    representing the line of bubbles that are on the physical bubblesheet
 5325: 
 5326: 
 5327: The overall process is that a scanned in bubblesheet data is uploaded
 5328: into a course. When a user wants to grade, they select a
 5329: sequence/folder of resources, a file of bubblesheet info, and pick
 5330: one of the predefined configurations for what each scanline looks
 5331: like.
 5332: 
 5333: Next each scanline is checked for any errors of either 'missing
 5334: bubbles' (it's an error because it may have been mis-scanned
 5335: because too light bubbling), 'double bubble' (each bubble line should
 5336: have no more than one letter picked), invalid or duplicated CODE,
 5337: invalid student/employee ID
 5338: 
 5339: If the CODE option is used that determines the randomization of the
 5340: homework problems, either way the student/employee ID is looked up into a
 5341: username:domain.
 5342: 
 5343: During the validation phase the instructor can choose to skip scanlines. 
 5344: 
 5345: After the validation phase, there are now 3 bubblesheet files
 5346: 
 5347:   scantron_original_filename (unmodified original file)
 5348:   scantron_corrected_filename (file where the corrected information has replaced the original information)
 5349:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 5350: 
 5351: Also there is a separate hash nohist_scantrondata that contains extra
 5352: correction information that isn't representable in the bubblesheet
 5353: file (see &scantron_getfile() for more information)
 5354: 
 5355: After all scanlines are either valid, marked as valid or skipped, then
 5356: foreach line foreach problem in the picked sequence, an ssi request is
 5357: made that simulates a user submitting their selected letter(s) against
 5358: the homework problem.
 5359: 
 5360: =over 4
 5361: 
 5362: 
 5363: 
 5364: =item defaultFormData
 5365: 
 5366:   Returns html hidden inputs used to hold context/default values.
 5367: 
 5368:  Arguments:
 5369:   $symb - $symb of the current resource 
 5370: 
 5371: =cut
 5372: 
 5373: sub defaultFormData {
 5374:     my ($symb)=@_;
 5375:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 5376:      '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 5377:      '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 5378: }
 5379: 
 5380: 
 5381: =pod 
 5382: 
 5383: =item getSequenceDropDown
 5384: 
 5385:    Return html dropdown of possible sequences to grade
 5386:  
 5387:  Arguments:
 5388:    $symb - $symb of the current resource
 5389:    $map_error - ref to scalar which will container error if
 5390:                 $navmap object is unavailable in &getSymbMap().
 5391: 
 5392: =cut
 5393: 
 5394: sub getSequenceDropDown {
 5395:     my ($symb,$map_error)=@_;
 5396:     my $result='<select name="selectpage">'."\n";
 5397:     my ($titles,$symbx) = &getSymbMap($map_error);
 5398:     if (ref($map_error)) {
 5399:         return if ($$map_error);
 5400:     }
 5401:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
 5402:     my $ctr=0;
 5403:     foreach (@$titles) {
 5404: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 5405: 	$result.='<option value="'.$$symbx{$_}.'" '.
 5406: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 5407: 	    '>'.$showtitle.'</option>'."\n";
 5408: 	$ctr++;
 5409:     }
 5410:     $result.= '</select>';
 5411:     return $result;
 5412: }
 5413: 
 5414: my %bubble_lines_per_response;     # no. bubble lines for each response.
 5415:                                    # key is zero-based index - 0, 1, 2 ...
 5416: 
 5417: my %first_bubble_line;             # First bubble line no. for each bubble.
 5418: 
 5419: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
 5420:                                    # matchresponse or rankresponse, where 
 5421:                                    # an individual response can have multiple 
 5422:                                    # lines
 5423: 
 5424: my %responsetype_per_response;     # responsetype for each response
 5425: 
 5426: my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
 5427:                                    # numbered response. Needed when randomorder
 5428:                                    # or randompick are in use. Key is ID, value 
 5429:                                    # is response number.
 5430: 
 5431: # Save and restore the bubble lines array to the form env.
 5432: 
 5433: 
 5434: sub save_bubble_lines {
 5435:     foreach my $line (keys(%bubble_lines_per_response)) {
 5436: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
 5437: 	$env{"form.scantron.first_bubble_line.$line"} =
 5438: 	    $first_bubble_line{$line};
 5439:         $env{"form.scantron.sub_bubblelines.$line"} = 
 5440:             $subdivided_bubble_lines{$line};
 5441:         $env{"form.scantron.responsetype.$line"} =
 5442:             $responsetype_per_response{$line};
 5443:     }
 5444:     foreach my $resid (keys(%masterseq_id_responsenum)) {
 5445:         my $line = $masterseq_id_responsenum{$resid};
 5446:         $env{"form.scantron.residpart.$line"} = $resid;
 5447:     }
 5448: }
 5449: 
 5450: 
 5451: sub restore_bubble_lines {
 5452:     my $line = 0;
 5453:     %bubble_lines_per_response = ();
 5454:     %masterseq_id_responsenum = ();
 5455:     while ($env{"form.scantron.bubblelines.$line"}) {
 5456: 	my $value = $env{"form.scantron.bubblelines.$line"};
 5457: 	$bubble_lines_per_response{$line} = $value;
 5458: 	$first_bubble_line{$line}  =
 5459: 	    $env{"form.scantron.first_bubble_line.$line"};
 5460:         $subdivided_bubble_lines{$line} =
 5461:             $env{"form.scantron.sub_bubblelines.$line"};
 5462:         $responsetype_per_response{$line} =
 5463:             $env{"form.scantron.responsetype.$line"};
 5464:         my $id = $env{"form.scantron.residpart.$line"};
 5465:         $masterseq_id_responsenum{$id} = $line;
 5466: 	$line++;
 5467:     }
 5468: }
 5469: 
 5470: =pod 
 5471: 
 5472: =item scantron_filenames
 5473: 
 5474:    Returns a list of the scantron files in the current course 
 5475: 
 5476: =cut
 5477: 
 5478: sub scantron_filenames {
 5479:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 5480:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 5481:     my $getpropath = 1;
 5482:     my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
 5483:                                                         $cname,$getpropath);
 5484:     my @possiblenames;
 5485:     if (ref($dirlist) eq 'ARRAY') {
 5486:         foreach my $filename (sort(@{$dirlist})) {
 5487: 	    ($filename)=split(/&/,$filename);
 5488: 	    if ($filename!~/^scantron_orig_/) { next ; }
 5489: 	    $filename=~s/^scantron_orig_//;
 5490: 	    push(@possiblenames,$filename);
 5491:         }
 5492:     }
 5493:     return @possiblenames;
 5494: }
 5495: 
 5496: =pod 
 5497: 
 5498: =item scantron_uploads
 5499: 
 5500:    Returns  html drop-down list of scantron files in current course.
 5501: 
 5502:  Arguments:
 5503:    $file2grade - filename to set as selected in the dropdown
 5504: 
 5505: =cut
 5506: 
 5507: sub scantron_uploads {
 5508:     my ($file2grade) = @_;
 5509:     my $result=	'<select name="scantron_selectfile">';
 5510:     $result.="<option></option>";
 5511:     foreach my $filename (sort(&scantron_filenames())) {
 5512: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
 5513:     }
 5514:     $result.="</select>";
 5515:     return $result;
 5516: }
 5517: 
 5518: =pod 
 5519: 
 5520: =item scantron_scantab
 5521: 
 5522:   Returns html drop down of the scantron formats in the scantronformat.tab
 5523:   file.
 5524: 
 5525: =cut
 5526: 
 5527: sub scantron_scantab {
 5528:     my $result='<select name="scantron_format">'."\n";
 5529:     $result.='<option></option>'."\n";
 5530:     my @lines = &get_scantronformat_file();
 5531:     if (@lines > 0) {
 5532:         foreach my $line (@lines) {
 5533:             next if (($line =~ /^\#/) || ($line eq ''));
 5534: 	    my ($name,$descrip)=split(/:/,$line);
 5535: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
 5536:         }
 5537:     }
 5538:     $result.='</select>'."\n";
 5539:     return $result;
 5540: }
 5541: 
 5542: =pod
 5543: 
 5544: =item get_scantronformat_file
 5545: 
 5546:   Returns an array containing lines from the scantron format file for
 5547:   the domain of the course.
 5548: 
 5549:   If a url for a custom.tab file is listed in domain's configuration.db, 
 5550:   lines are from this file.
 5551: 
 5552:   Otherwise, if a default.tab has been published in RES space by the 
 5553:   domainconfig user, lines are from this file.
 5554: 
 5555:   Otherwise, fall back to getting lines from the legacy file on the
 5556:   local server:  /home/httpd/lonTabs/default_scantronformat.tab    
 5557: 
 5558: =cut
 5559: 
 5560: sub get_scantronformat_file {
 5561:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5562:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$cdom);
 5563:     my $gottab = 0;
 5564:     my @lines;
 5565:     if (ref($domconfig{'scantron'}) eq 'HASH') {
 5566:         if ($domconfig{'scantron'}{'scantronformat'} ne '') {
 5567:             my $formatfile = &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
 5568:             if ($formatfile ne '-1') {
 5569:                 @lines = split("\n",$formatfile,-1);
 5570:                 $gottab = 1;
 5571:             }
 5572:         }
 5573:     }
 5574:     if (!$gottab) {
 5575:         my $confname = $cdom.'-domainconfig';
 5576:         my $default = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
 5577:         my $formatfile =  &Apache::lonnet::getfile($default);
 5578:         if ($formatfile ne '-1') {
 5579:             @lines = split("\n",$formatfile,-1);
 5580:             $gottab = 1;
 5581:         }
 5582:     }
 5583:     if (!$gottab) {
 5584:         my @domains = &Apache::lonnet::current_machine_domains();
 5585:         if (grep(/^\Q$cdom\E$/,@domains)) {
 5586:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
 5587:             @lines = <$fh>;
 5588:             close($fh);
 5589:         } else {
 5590:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab');
 5591:             @lines = <$fh>;
 5592:             close($fh);
 5593:         }
 5594:     }
 5595:     return @lines;
 5596: }
 5597: 
 5598: =pod 
 5599: 
 5600: =item scantron_CODElist
 5601: 
 5602:   Returns html drop down of the saved CODE lists from current course,
 5603:   generated from earlier printings.
 5604: 
 5605: =cut
 5606: 
 5607: sub scantron_CODElist {
 5608:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 5609:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 5610:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 5611:     my $namechoice='<option></option>';
 5612:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 5613: 	if ($name =~ /^error: 2 /) { next; }
 5614: 	if ($name =~ /^type\0/) { next; }
 5615: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
 5616:     }
 5617:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
 5618:     return $namechoice;
 5619: }
 5620: 
 5621: =pod 
 5622: 
 5623: =item scantron_CODEunique
 5624: 
 5625:   Returns the html for "Each CODE to be used once" radio.
 5626: 
 5627: =cut
 5628: 
 5629: sub scantron_CODEunique {
 5630:     my $result='<span class="LC_nobreak">
 5631:                  <label><input type="radio" name="scantron_CODEunique"
 5632:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
 5633:                 </span>
 5634:                 <span class="LC_nobreak">
 5635:                  <label><input type="radio" name="scantron_CODEunique"
 5636:                         value="no" />'.&mt('No').' </label>
 5637:                 </span>';
 5638:     return $result;
 5639: }
 5640: 
 5641: =pod 
 5642: 
 5643: =item scantron_selectphase
 5644: 
 5645:   Generates the initial screen to start the bubblesheet process.
 5646:   Allows for - starting a grading run.
 5647:              - downloading existing scan data (original, corrected
 5648:                                                 or skipped info)
 5649: 
 5650:              - uploading new scan data
 5651: 
 5652:  Arguments:
 5653:   $r          - The Apache request object
 5654:   $file2grade - name of the file that contain the scanned data to score
 5655: 
 5656: =cut
 5657: 
 5658: sub scantron_selectphase {
 5659:     my ($r,$file2grade) = @_;
 5660:     my ($symb)=&get_symb($r);
 5661:     if (!$symb) {return '';}
 5662:     my $map_error;
 5663:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
 5664:     if ($map_error) {
 5665:         $r->print('<br />'.&navmap_errormsg().'<br />');
 5666:         return;
 5667:     }
 5668:     my $default_form_data=&defaultFormData($symb);
 5669:     my $grading_menu_button=&show_grading_menu_form($symb);
 5670:     my $file_selector=&scantron_uploads($file2grade);
 5671:     my $format_selector=&scantron_scantab();
 5672:     my $CODE_selector=&scantron_CODElist();
 5673:     my $CODE_unique=&scantron_CODEunique();
 5674:     my $result;
 5675: 
 5676:     $ssi_error = 0;
 5677: 
 5678:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
 5679:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 5680: 
 5681:         # Chunk of form to prompt for a scantron file upload.
 5682: 
 5683:         $r->print('
 5684:     <br />
 5685:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5686:        '.&Apache::loncommon::start_data_table_header_row().'
 5687:             <th>
 5688:               &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
 5689:             </th>
 5690:        '.&Apache::loncommon::end_data_table_header_row().'
 5691:        '.&Apache::loncommon::start_data_table_row().'
 5692:             <td>
 5693: ');
 5694:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 5695:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5696:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
 5697:     $r->print('
 5698:               <script type="text/javascript" language="javascript">
 5699:     function checkUpload(formname) {
 5700:         if (formname.upfile.value == "") {
 5701:             alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
 5702:             return false;
 5703:         }
 5704:         formname.submit();
 5705:     }
 5706:               </script>
 5707: 
 5708:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 5709:                 '.$default_form_data.'
 5710:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
 5711:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
 5712:                 <input name="command" value="scantronupload_save" type="hidden" />
 5713:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'
 5714:                 <br />
 5715:                 <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 5716:               </form>
 5717: ');
 5718: 
 5719:         $r->print('
 5720:             </td>
 5721:        '.&Apache::loncommon::end_data_table_row().'
 5722:        '.&Apache::loncommon::end_data_table().'
 5723: ');
 5724:     }
 5725: 
 5726:     # Chunk of form to prompt for a file to grade and how:
 5727: 
 5728:     $result.= '
 5729:     <br />
 5730:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
 5731:     <input type="hidden" name="command" value="scantron_warning" />
 5732:     '.$default_form_data.'
 5733:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5734:        '.&Apache::loncommon::start_data_table_header_row().'
 5735:             <th colspan="2">
 5736:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
 5737:             </th>
 5738:        '.&Apache::loncommon::end_data_table_header_row().'
 5739:        '.&Apache::loncommon::start_data_table_row().'
 5740:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
 5741:        '.&Apache::loncommon::end_data_table_row().'
 5742:        '.&Apache::loncommon::start_data_table_row().'
 5743:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
 5744:        '.&Apache::loncommon::end_data_table_row().'
 5745:        '.&Apache::loncommon::start_data_table_row().'
 5746:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
 5747:        '.&Apache::loncommon::end_data_table_row().'
 5748:        '.&Apache::loncommon::start_data_table_row().'
 5749:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
 5750:        '.&Apache::loncommon::end_data_table_row().'
 5751:        '.&Apache::loncommon::start_data_table_row().'
 5752:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
 5753:        '.&Apache::loncommon::end_data_table_row().'
 5754:        '.&Apache::loncommon::start_data_table_row().'
 5755: 	    <td> '.&mt('Options:').' </td>
 5756:             <td>
 5757: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
 5758:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
 5759:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
 5760: 	    </td>
 5761:        '.&Apache::loncommon::end_data_table_row().'
 5762:        '.&Apache::loncommon::start_data_table_row().'
 5763:             <td colspan="2">
 5764:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
 5765:             </td>
 5766:        '.&Apache::loncommon::end_data_table_row().'
 5767:     '.&Apache::loncommon::end_data_table().'
 5768:     </form>
 5769: ';
 5770:    
 5771:     $r->print($result);
 5772: 
 5773:     # Chunk of the form that prompts to view a scoring office file,
 5774:     # corrected file, skipped records in a file.
 5775: 
 5776:     $r->print('
 5777:    <br />
 5778:    <form action="/adm/grades" name="scantron_download">
 5779:      '.$default_form_data.'
 5780:      <input type="hidden" name="command" value="scantron_download" />
 5781:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5782:        '.&Apache::loncommon::start_data_table_header_row().'
 5783:               <th>
 5784:                 &nbsp;'.&mt('Download a scoring office file').'
 5785:               </th>
 5786:        '.&Apache::loncommon::end_data_table_header_row().'
 5787:        '.&Apache::loncommon::start_data_table_row().'
 5788:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
 5789:                 <br />
 5790:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
 5791:        '.&Apache::loncommon::end_data_table_row().'
 5792:      '.&Apache::loncommon::end_data_table().'
 5793:    </form>
 5794:    <br />
 5795: ');
 5796: 
 5797:     &Apache::lonpickcode::code_list($r,2);
 5798: 
 5799:     $r->print('<br /><form method="post" name="checkscantron" action="">'.
 5800:              $default_form_data."\n".
 5801:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
 5802:              &Apache::loncommon::start_data_table_header_row()."\n".
 5803:              '<th colspan="2">
 5804:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
 5805:              '</th>'."\n".
 5806:               &Apache::loncommon::end_data_table_header_row()."\n".
 5807:               &Apache::loncommon::start_data_table_row()."\n".
 5808:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
 5809:               '<td> '.$sequence_selector.' </td>'.
 5810:               &Apache::loncommon::end_data_table_row()."\n".
 5811:               &Apache::loncommon::start_data_table_row()."\n".
 5812:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
 5813:               '<td> '.$file_selector.' </td>'."\n".
 5814:               &Apache::loncommon::end_data_table_row()."\n".
 5815:               &Apache::loncommon::start_data_table_row()."\n".
 5816:               '<td> '.&mt('Format of data file:').' </td>'."\n".
 5817:               '<td> '.$format_selector.' </td>'."\n".
 5818:               &Apache::loncommon::end_data_table_row()."\n".
 5819:               &Apache::loncommon::start_data_table_row()."\n".
 5820:               '<td> '.&mt('Options').' </td>'."\n".
 5821:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
 5822:               &Apache::loncommon::end_data_table_row()."\n".
 5823:               &Apache::loncommon::start_data_table_row()."\n".
 5824:               '<td colspan="2">'."\n".
 5825:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
 5826:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
 5827:               '</td>'."\n".
 5828:               &Apache::loncommon::end_data_table_row()."\n".
 5829:               &Apache::loncommon::end_data_table()."\n".
 5830:               '</form><br />');
 5831:     $r->print($grading_menu_button);
 5832:     return;
 5833: }
 5834: 
 5835: =pod
 5836: 
 5837: =item get_scantron_config
 5838: 
 5839:    Parse and return the scantron configuration line selected as a
 5840:    hash of configuration file fields.
 5841: 
 5842:  Arguments:
 5843:     which - the name of the configuration to parse from the file.
 5844: 
 5845: 
 5846:  Returns:
 5847:             If the named configuration is not in the file, an empty
 5848:             hash is returned.
 5849:     a hash with the fields
 5850:       name         - internal name for the this configuration setup
 5851:       description  - text to display to operator that describes this config
 5852:       CODElocation - if 0 or the string 'none'
 5853:                           - no CODE exists for this config
 5854:                      if -1 || the string 'letter'
 5855:                           - a CODE exists for this config and is
 5856:                             a string of letters
 5857:                      Unsupported value (but planned for future support)
 5858:                           if a positive integer
 5859:                                - The CODE exists as the first n items from
 5860:                                  the question section of the form
 5861:                           if the string 'number'
 5862:                                - The CODE exists for this config and is
 5863:                                  a string of numbers
 5864:       CODEstart   - (only matter if a CODE exists) column in the line where
 5865:                      the CODE starts
 5866:       CODElength  - length of the CODE
 5867:       IDstart     - column where the student/employee ID starts
 5868:       IDlength    - length of the student/employee ID info
 5869:       Qstart      - column where the information from the bubbled
 5870:                     'questions' start
 5871:       Qlength     - number of columns comprising a single bubble line from
 5872:                     the sheet. (usually either 1 or 10)
 5873:       Qon         - either a single character representing the character used
 5874:                     to signal a bubble was chosen in the positional setup, or
 5875:                     the string 'letter' if the letter of the chosen bubble is
 5876:                     in the final, or 'number' if a number representing the
 5877:                     chosen bubble is in the file (1->A 0->J)
 5878:       Qoff        - the character used to represent that a bubble was
 5879:                     left blank
 5880:       PaperID     - if the scanning process generates a unique number for each
 5881:                     sheet scanned the column that this ID number starts in
 5882:       PaperIDlength - number of columns that comprise the unique ID number
 5883:                       for the sheet of paper
 5884:       FirstName   - column that the first name starts in
 5885:       FirstNameLength - number of columns that the first name spans
 5886:  
 5887:       LastName    - column that the last name starts in
 5888:       LastNameLength - number of columns that the last name spans
 5889:       BubblesPerRow - number of bubbles available in each row used to
 5890:                       bubble an answer. (If not specified, 10 assumed).
 5891: 
 5892: =cut
 5893: 
 5894: sub get_scantron_config {
 5895:     my ($which) = @_;
 5896:     my @lines = &get_scantronformat_file();
 5897:     my %config;
 5898:     #FIXME probably should move to XML it has already gotten a bit much now
 5899:     foreach my $line (@lines) {
 5900: 	my ($name,$descrip)=split(/:/,$line);
 5901: 	if ($name ne $which ) { next; }
 5902: 	chomp($line);
 5903: 	my @config=split(/:/,$line);
 5904: 	$config{'name'}=$config[0];
 5905: 	$config{'description'}=$config[1];
 5906: 	$config{'CODElocation'}=$config[2];
 5907: 	$config{'CODEstart'}=$config[3];
 5908: 	$config{'CODElength'}=$config[4];
 5909: 	$config{'IDstart'}=$config[5];
 5910: 	$config{'IDlength'}=$config[6];
 5911: 	$config{'Qstart'}=$config[7];
 5912:  	$config{'Qlength'}=$config[8];
 5913: 	$config{'Qoff'}=$config[9];
 5914: 	$config{'Qon'}=$config[10];
 5915: 	$config{'PaperID'}=$config[11];
 5916: 	$config{'PaperIDlength'}=$config[12];
 5917: 	$config{'FirstName'}=$config[13];
 5918: 	$config{'FirstNamelength'}=$config[14];
 5919: 	$config{'LastName'}=$config[15];
 5920: 	$config{'LastNamelength'}=$config[16];
 5921:         $config{'BubblesPerRow'}=$config[17];
 5922: 	last;
 5923:     }
 5924:     return %config;
 5925: }
 5926: 
 5927: =pod 
 5928: 
 5929: =item username_to_idmap
 5930: 
 5931:     creates a hash keyed by student/employee ID with values of the corresponding
 5932:     student username:domain.
 5933: 
 5934:   Arguments:
 5935: 
 5936:     $classlist - reference to the class list hash. This is a hash
 5937:                  keyed by student name:domain  whose elements are references
 5938:                  to arrays containing various chunks of information
 5939:                  about the student. (See loncoursedata for more info).
 5940: 
 5941:   Returns
 5942:     %idmap - the constructed hash
 5943: 
 5944: =cut
 5945: 
 5946: sub username_to_idmap {
 5947:     my ($classlist)= @_;
 5948:     my %idmap;
 5949:     foreach my $student (keys(%$classlist)) {
 5950:         my $id = $classlist->{$student}->[&Apache::loncoursedata::CL_ID];
 5951:         unless ($id eq '') {
 5952:             if (!exists($idmap{$id})) {
 5953:                 $idmap{$id} = $student;
 5954:             } else {
 5955:                 my $status = $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS];
 5956:                 if ($status eq 'Active') {
 5957:                     $idmap{$id} = $student;
 5958:                 }
 5959:             }
 5960:         }
 5961:     }
 5962:     return %idmap;
 5963: }
 5964: 
 5965: =pod
 5966: 
 5967: =item scantron_fixup_scanline
 5968: 
 5969:    Process a requested correction to a scanline.
 5970: 
 5971:   Arguments:
 5972:     $scantron_config   - hash from &get_scantron_config()
 5973:     $scan_data         - hash of correction information 
 5974:                           (see &scantron_getfile())
 5975:     $line              - existing scanline
 5976:     $whichline         - line number of the passed in scanline
 5977:     $field             - type of change to process 
 5978:                          (either 
 5979:                           'ID'     -> correct the student/employee ID
 5980:                           'CODE'   -> correct the CODE
 5981:                           'answer' -> fixup the submitted answers)
 5982:     
 5983:    $args               - hash of additional info,
 5984:                           - 'ID' 
 5985:                                'newid' -> studentID to use in replacement
 5986:                                           of existing one
 5987:                           - 'CODE' 
 5988:                                'CODE_ignore_dup' - set to true if duplicates
 5989:                                                    should be ignored.
 5990: 	                       'CODE' - is new code or 'use_unfound'
 5991:                                         if the existing unfound code should
 5992:                                         be used as is
 5993:                           - 'answer'
 5994:                                'response' - new answer or 'none' if blank
 5995:                                'question' - the bubble line to change
 5996:                                'questionnum' - the question identifier,
 5997:                                                may include subquestion. 
 5998: 
 5999:   Returns:
 6000:     $line - the modified scanline
 6001: 
 6002:   Side effects: 
 6003:     $scan_data - may be updated
 6004: 
 6005: =cut
 6006: 
 6007: 
 6008: sub scantron_fixup_scanline {
 6009:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
 6010:     if ($field eq 'ID') {
 6011: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
 6012: 	    return ($line,1,'New value too large');
 6013: 	}
 6014: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
 6015: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
 6016: 				     $args->{'newid'});
 6017: 	}
 6018: 	substr($line,$$scantron_config{'IDstart'}-1,
 6019: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
 6020: 	if ($args->{'newid'}=~/^\s*$/) {
 6021: 	    &scan_data($scan_data,"$whichline.user",
 6022: 		       $args->{'username'}.':'.$args->{'domain'});
 6023: 	}
 6024:     } elsif ($field eq 'CODE') {
 6025: 	if ($args->{'CODE_ignore_dup'}) {
 6026: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
 6027: 	}
 6028: 	&scan_data($scan_data,"$whichline.useCODE",'1');
 6029: 	if ($args->{'CODE'} ne 'use_unfound') {
 6030: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
 6031: 		return ($line,1,'New CODE value too large');
 6032: 	    }
 6033: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
 6034: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
 6035: 	    }
 6036: 	    substr($line,$$scantron_config{'CODEstart'}-1,
 6037: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
 6038: 	}
 6039:     } elsif ($field eq 'answer') {
 6040: 	my $length=$scantron_config->{'Qlength'};
 6041: 	my $off=$scantron_config->{'Qoff'};
 6042: 	my $on=$scantron_config->{'Qon'};
 6043: 	my $answer=${off}x$length;
 6044: 	if ($args->{'response'} eq 'none') {
 6045: 	    &scan_data($scan_data,
 6046: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
 6047: 	} else {
 6048: 	    if ($on eq 'letter') {
 6049: 		my @alphabet=('A'..'Z');
 6050: 		$answer=$alphabet[$args->{'response'}];
 6051: 	    } elsif ($on eq 'number') {
 6052: 		$answer=$args->{'response'}+1;
 6053: 		if ($answer == 10) { $answer = '0'; }
 6054: 	    } else {
 6055: 		substr($answer,$args->{'response'},1)=$on;
 6056: 	    }
 6057: 	    &scan_data($scan_data,
 6058: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
 6059: 	}
 6060: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
 6061: 	substr($line,$where-1,$length)=$answer;
 6062:     }
 6063:     return $line;
 6064: }
 6065: 
 6066: =pod
 6067: 
 6068: =item scan_data
 6069: 
 6070:     Edit or look up  an item in the scan_data hash.
 6071: 
 6072:   Arguments:
 6073:     $scan_data  - The hash (see scantron_getfile)
 6074:     $key        - shorthand of the key to edit (actual key is
 6075:                   scantronfilename_key).
 6076:     $data        - New value of the hash entry.
 6077:     $delete      - If true, the entry is removed from the hash.
 6078: 
 6079:   Returns:
 6080:     The new value of the hash table field (undefined if deleted).
 6081: 
 6082: =cut
 6083: 
 6084: 
 6085: sub scan_data {
 6086:     my ($scan_data,$key,$value,$delete)=@_;
 6087:     my $filename=$env{'form.scantron_selectfile'};
 6088:     if (defined($value)) {
 6089: 	$scan_data->{$filename.'_'.$key} = $value;
 6090:     }
 6091:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
 6092:     return $scan_data->{$filename.'_'.$key};
 6093: }
 6094: 
 6095: # ----- These first few routines are general use routines.----
 6096: 
 6097: # Return the number of occurences of a pattern in a string.
 6098: 
 6099: sub occurence_count {
 6100:     my ($string, $pattern) = @_;
 6101: 
 6102:     my @matches = ($string =~ /$pattern/g);
 6103: 
 6104:     return scalar(@matches);
 6105: }
 6106: 
 6107: 
 6108: # Take a string known to have digits and convert all the
 6109: # digits into letters in the range J,A..I.
 6110: 
 6111: sub digits_to_letters {
 6112:     my ($input) = @_;
 6113: 
 6114:     my @alphabet = ('J', 'A'..'I');
 6115: 
 6116:     my @input    = split(//, $input);
 6117:     my $output ='';
 6118:     for (my $i = 0; $i < scalar(@input); $i++) {
 6119: 	if ($input[$i] =~ /\d/) {
 6120: 	    $output .= $alphabet[$input[$i]];
 6121: 	} else {
 6122: 	    $output .= $input[$i];
 6123: 	}
 6124:     }
 6125:     return $output;
 6126: }
 6127: 
 6128: =pod 
 6129: 
 6130: =item scantron_parse_scanline
 6131: 
 6132:   Decodes a scanline from the selected scantron file
 6133: 
 6134:  Arguments:
 6135:     line             - The text of the scantron file line to process
 6136:     whichline        - Line number
 6137:     scantron_config  - Hash describing the format of the scantron lines.
 6138:     scan_data        - Hash of extra information about the scanline
 6139:                        (see scantron_getfile for more information)
 6140:     just_header      - True if should not process question answers but only
 6141:                        the stuff to the left of the answers.
 6142:     randomorder      - True if randomorder in use
 6143:     randompick       - True if randompick in use
 6144:     sequence         - Exam folder URL
 6145:     master_seq       - Ref to array containing symbs in exam folder
 6146:     symb_to_resource - Ref to hash of symbs for resources in exam folder
 6147:                        (corresponding values are resource objects)
 6148:     partids_by_symb  - Ref to hash of symb -> array ref of partIDs
 6149:     orderedforcode   - Ref to hash of arrays. keys are CODEs and values
 6150:                        are refs to an array of resource objects, ordered
 6151:                        according to order used for CODE, when randomorder
 6152:                        and or randompick are in use.
 6153:     respnumlookup    - Ref to hash mapping question numbers in bubble lines
 6154:                        for current line to question number used for same question
 6155:                         in "Master Sequence" (as seen by Course Coordinator).
 6156:     startline        - Ref to hash where key is question number (0 is first)
 6157:                        and value is number of first bubble line for current 
 6158:                        student or code-based randompick and/or randomorder.
 6159:     totalref         - Ref of scalar used to score total number of bubble
 6160:                        lines needed for responses in a scan line (used when
 6161:                        randompick in use. 
 6162: 
 6163:  Returns:
 6164:    Hash containing the result of parsing the scanline
 6165: 
 6166:    Keys are all proceeded by the string 'scantron.'
 6167: 
 6168:        CODE    - the CODE in use for this scanline
 6169:        useCODE - 1 if the CODE is invalid but it usage has been forced
 6170:                  by the operator
 6171:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
 6172:                             CODEs were selected, but the usage has been
 6173:                             forced by the operator
 6174:        ID  - student/employee ID
 6175:        PaperID - if used, the ID number printed on the sheet when the 
 6176:                  paper was scanned
 6177:        FirstName - first name from the sheet
 6178:        LastName  - last name from the sheet
 6179: 
 6180:      if just_header was not true these key may also exist
 6181: 
 6182:        missingerror - a list of bubble ranges that are considered to be answers
 6183:                       to a single question that don't have any bubbles filled in.
 6184:                       Of the form questionnumber:firstbubblenumber:count.
 6185:        doubleerror  - a list of bubble ranges that are considered to be answers
 6186:                       to a single question that have more than one bubble filled in.
 6187:                       Of the form questionnumber::firstbubblenumber:count
 6188:    
 6189:                 In the above, count is the number of bubble responses in the
 6190:                 input line needed to represent the possible answers to the question.
 6191:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
 6192:                 per line would have count = 2.
 6193: 
 6194:        maxquest     - the number of the last bubble line that was parsed
 6195: 
 6196:        (<number> starts at 1)
 6197:        <number>.answer - zero or more letters representing the selected
 6198:                          letters from the scanline for the bubble line 
 6199:                          <number>.
 6200:                          if blank there was either no bubble or there where
 6201:                          multiple bubbles, (consult the keys missingerror and
 6202:                          doubleerror if this is an error condition)
 6203: 
 6204: =cut
 6205: 
 6206: sub scantron_parse_scanline {
 6207:     my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
 6208:         $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
 6209:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
 6210: 
 6211:     my %record;
 6212:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
 6213:     if (!($$scantron_config{'CODElocation'} eq 0 ||
 6214: 	  $$scantron_config{'CODElocation'} eq 'none')) {
 6215: 	if ($$scantron_config{'CODElocation'} < 0 ||
 6216: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
 6217: 	    $$scantron_config{'CODElocation'} eq 'number') {
 6218: 	    $record{'scantron.CODE'}=substr($data,
 6219: 					    $$scantron_config{'CODEstart'}-1,
 6220: 					    $$scantron_config{'CODElength'});
 6221: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
 6222: 		$record{'scantron.useCODE'}=1;
 6223: 	    }
 6224: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
 6225: 		$record{'scantron.CODE_ignore_dup'}=1;
 6226: 	    }
 6227: 	} else {
 6228: 	    #FIXME interpret first N questions
 6229: 	}
 6230:     }
 6231:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
 6232: 				  $$scantron_config{'IDlength'});
 6233:     $record{'scantron.PaperID'}=
 6234: 	substr($data,$$scantron_config{'PaperID'}-1,
 6235: 	       $$scantron_config{'PaperIDlength'});
 6236:     $record{'scantron.FirstName'}=
 6237: 	substr($data,$$scantron_config{'FirstName'}-1,
 6238: 	       $$scantron_config{'FirstNamelength'});
 6239:     $record{'scantron.LastName'}=
 6240: 	substr($data,$$scantron_config{'LastName'}-1,
 6241: 	       $$scantron_config{'LastNamelength'});
 6242:     if ($just_header) { return \%record; }
 6243: 
 6244:     my @alphabet=('A'..'Z');
 6245:     my $questnum=0;
 6246:     my $ansnum  =1;		# Multiple 'answer lines'/question.
 6247: 
 6248:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
 6249:     if ($randompick || $randomorder) {
 6250:         my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
 6251:                                          $master_seq,$symb_to_resource,
 6252:                                          $partids_by_symb,$orderedforcode,
 6253:                                          $respnumlookup,$startline);
 6254:         if ($total) {
 6255:             $lastpos = $total*$$scantron_config{'Qlength'};
 6256:         }
 6257:         if (ref($totalref)) {
 6258:             $$totalref = $total;
 6259:         }
 6260:     }
 6261:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
 6262:     chomp($questions);		# Get rid of any trailing \n.
 6263:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
 6264:     while (length($questions)) {
 6265:         my $answers_needed;
 6266:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6267:             $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
 6268:         } else {
 6269:             $answers_needed = $bubble_lines_per_response{$questnum};
 6270:         }
 6271:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
 6272:                              || 1;
 6273:         $questnum++;
 6274:         my $quest_id = $questnum;
 6275:         my $currentquest = substr($questions,0,$answer_length);
 6276:         $questions       = substr($questions,$answer_length);
 6277:         if (length($currentquest) < $answer_length) { next; }
 6278: 
 6279:         my $subdivided;
 6280:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6281:             $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
 6282:         } else {
 6283:             $subdivided = $subdivided_bubble_lines{$questnum-1};
 6284:         }
 6285:         if ($subdivided =~ /,/) {
 6286:             my $subquestnum = 1;
 6287:             my $subquestions = $currentquest;
 6288:             my @subanswers_needed = split(/,/,$subdivided);
 6289:             foreach my $subans (@subanswers_needed) {
 6290:                 my $subans_length =
 6291:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
 6292:                 my $currsubquest = substr($subquestions,0,$subans_length);
 6293:                 $subquestions   = substr($subquestions,$subans_length);
 6294:                 $quest_id = "$questnum.$subquestnum";
 6295:                 if (($$scantron_config{'Qon'} eq 'letter') ||
 6296:                     ($$scantron_config{'Qon'} eq 'number')) {
 6297:                     $ansnum = &scantron_validator_lettnum($ansnum, 
 6298:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6299:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6300:                         $randomorder,$randompick,$respnumlookup);
 6301:                 } else {
 6302:                     $ansnum = &scantron_validator_positional($ansnum,
 6303:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6304:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6305:                         $randomorder,$randompick,$respnumlookup);
 6306:                 }
 6307:                 $subquestnum ++;
 6308:             }
 6309:         } else {
 6310:             if (($$scantron_config{'Qon'} eq 'letter') ||
 6311:                 ($$scantron_config{'Qon'} eq 'number')) {
 6312:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
 6313:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6314:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6315:                     $randomorder,$randompick,$respnumlookup);
 6316:             } else {
 6317:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
 6318:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6319:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6320:                     $randomorder,$randompick,$respnumlookup);
 6321:             }
 6322:         }
 6323:     }
 6324:     $record{'scantron.maxquest'}=$questnum;
 6325:     return \%record;
 6326: }
 6327: 
 6328: sub get_master_seq {
 6329:     my ($resources,$master_seq,$symb_to_resource) = @_;
 6330:     return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') &&
 6331:                    (ref($symb_to_resource) eq 'HASH'));
 6332:     my $resource_error;
 6333:     foreach my $resource (@{$resources}) {
 6334:         my $ressymb;
 6335:         if (ref($resource)) {
 6336:             $ressymb = $resource->symb();
 6337:             push(@{$master_seq},$ressymb);
 6338:             $symb_to_resource->{$ressymb} = $resource;
 6339:         } else {
 6340:             $resource_error = 1;
 6341:             last;
 6342:         }
 6343:     }
 6344:     return $resource_error;
 6345: }
 6346: 
 6347: sub get_respnum_lookups {
 6348:     my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
 6349:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
 6350:     return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
 6351:                    (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
 6352:                    (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
 6353:                    (ref($startline) eq 'HASH'));
 6354:     my ($user,$scancode);
 6355:     if ((exists($record->{'scantron.CODE'})) &&
 6356:         (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
 6357:         $scancode = $record->{'scantron.CODE'};
 6358:     } else {
 6359:         $user = &scantron_find_student($record,$scan_data,$idmap,$line);
 6360:     }
 6361:     my @mapresources =
 6362:         &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
 6363:                      $orderedforcode);
 6364:     my $total = 0;
 6365:     my $count = 0;
 6366:     foreach my $resource (@mapresources) {
 6367:         my $id = $resource->id();
 6368:         my $symb = $resource->symb();
 6369:         if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
 6370:             foreach my $partid (@{$partids_by_symb->{$symb}}) {
 6371:                 my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
 6372:                 if ($respnum ne '') {
 6373:                     $respnumlookup->{$count} = $respnum;
 6374:                     $startline->{$count} = $total;
 6375:                     $total += $bubble_lines_per_response{$respnum};
 6376:                     $count ++;
 6377:                 }
 6378:             }
 6379:         }
 6380:     }
 6381:     return $total;
 6382: }
 6383: 
 6384: sub scantron_validator_lettnum {
 6385:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
 6386:         $alphabet,$record,$scantron_config,$scan_data,$randomorder,
 6387:         $randompick,$respnumlookup) = @_;
 6388: 
 6389:     # Qon 'letter' implies for each slot in currquest we have:
 6390:     #    ? or * for doubles, a letter in A-Z for a bubble, and
 6391:     #    about anything else (esp. a value of Qoff) for missing
 6392:     #    bubbles.
 6393:     #
 6394:     # Qon 'number' implies each slot gives a digit that indexes the
 6395:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
 6396:     #    and * or ? for double bubbles on a single line.
 6397:     #
 6398: 
 6399:     my $matchon;
 6400:     if ($$scantron_config{'Qon'} eq 'letter') {
 6401:         $matchon = '[A-Z]';
 6402:     } elsif ($$scantron_config{'Qon'} eq 'number') {
 6403:         $matchon = '\d';
 6404:     }
 6405:     my $occurrences = 0;
 6406:     my $responsenum = $questnum-1;
 6407:     if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6408:        $responsenum = $respnumlookup->{$questnum-1}
 6409:     }
 6410:     if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6411:         ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6412:         ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6413:         ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6414:         ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6415:         ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6416:         my @singlelines = split('',$currquest);
 6417:         foreach my $entry (@singlelines) {
 6418:             $occurrences = &occurence_count($entry,$matchon);
 6419:             if ($occurrences > 1) {
 6420:                 last;
 6421:             }
 6422:         }
 6423:     } else {
 6424:         $occurrences = &occurence_count($currquest,$matchon); 
 6425:     }
 6426:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
 6427:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6428:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6429:             my $bubble = substr($currquest,$ans,1);
 6430:             if ($bubble =~ /$matchon/ ) {
 6431:                 if ($$scantron_config{'Qon'} eq 'number') {
 6432:                     if ($bubble == 0) {
 6433:                         $bubble = 10; 
 6434:                     }
 6435:                     $record->{"scantron.$ansnum.answer"} = 
 6436:                         $alphabet->[$bubble-1];
 6437:                 } else {
 6438:                     $record->{"scantron.$ansnum.answer"} = $bubble;
 6439:                 }
 6440:             } else {
 6441:                 $record->{"scantron.$ansnum.answer"}='';
 6442:             }
 6443:             $ansnum++;
 6444:         }
 6445:     } elsif (!defined($currquest)
 6446:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
 6447:             || (&occurence_count($currquest,$matchon) == 0)) {
 6448:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6449:             $record->{"scantron.$ansnum.answer"}='';
 6450:             $ansnum++;
 6451:         }
 6452:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6453:             push(@{$record->{'scantron.missingerror'}},$quest_id);
 6454:         }
 6455:     } else {
 6456:         if ($$scantron_config{'Qon'} eq 'number') {
 6457:             $currquest = &digits_to_letters($currquest);            
 6458:         }
 6459:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6460:             my $bubble = substr($currquest,$ans,1);
 6461:             $record->{"scantron.$ansnum.answer"} = $bubble;
 6462:             $ansnum++;
 6463:         }
 6464:     }
 6465:     return $ansnum;
 6466: }
 6467: 
 6468: sub scantron_validator_positional {
 6469:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
 6470:         $whichline,$alphabet,$record,$scantron_config,$scan_data,
 6471:         $randomorder,$randompick,$respnumlookup) = @_;
 6472: 
 6473:     # Otherwise there's a positional notation;
 6474:     # each bubble line requires Qlength items, and there are filled in
 6475:     # bubbles for each case where there 'Qon' characters.
 6476:     #
 6477: 
 6478:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
 6479: 
 6480:     # If the split only gives us one element.. the full length of the
 6481:     # answer string, no bubbles are filled in:
 6482: 
 6483:     if ($answers_needed eq '') {
 6484:         return;
 6485:     }
 6486: 
 6487:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
 6488:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6489:             $record->{"scantron.$ansnum.answer"}='';
 6490:             $ansnum++;
 6491:         }
 6492:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6493:             push(@{$record->{"scantron.missingerror"}},$quest_id);
 6494:         }
 6495:     } elsif (scalar(@array) == 2) {
 6496:         my $location = length($array[0]);
 6497:         my $line_num = int($location / $$scantron_config{'Qlength'});
 6498:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
 6499:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6500:             if ($ans eq $line_num) {
 6501:                 $record->{"scantron.$ansnum.answer"} = $bubble;
 6502:             } else {
 6503:                 $record->{"scantron.$ansnum.answer"} = ' ';
 6504:             }
 6505:             $ansnum++;
 6506:          }
 6507:     } else {
 6508:         #  If there's more than one instance of a bubble character
 6509:         #  That's a double bubble; with positional notation we can
 6510:         #  record all the bubbles filled in as well as the
 6511:         #  fact this response consists of multiple bubbles.
 6512:         #
 6513:         my $responsenum = $questnum-1;
 6514:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6515:             $responsenum = $respnumlookup->{$questnum-1}
 6516:         }
 6517:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6518:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6519:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6520:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6521:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6522:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6523:             my $doubleerror = 0;
 6524:             while (($currquest >= $$scantron_config{'Qlength'}) && 
 6525:                    (!$doubleerror)) {
 6526:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
 6527:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
 6528:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
 6529:                if (length(@currarray) > 2) {
 6530:                    $doubleerror = 1;
 6531:                } 
 6532:             }
 6533:             if ($doubleerror) {
 6534:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6535:             }
 6536:         } else {
 6537:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6538:         }
 6539:         my $item = $ansnum;
 6540:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6541:             $record->{"scantron.$item.answer"} = '';
 6542:             $item ++;
 6543:         }
 6544: 
 6545:         my @ans=@array;
 6546:         my $i=0;
 6547:         my $increment = 0;
 6548:         while ($#ans) {
 6549:             $i+=length($ans[0]) + $increment;
 6550:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
 6551:             my $bubble = $i%$$scantron_config{'Qlength'};
 6552:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
 6553:             shift(@ans);
 6554:             $increment = 1;
 6555:         }
 6556:         $ansnum += $answers_needed;
 6557:     }
 6558:     return $ansnum;
 6559: }
 6560: 
 6561: =pod
 6562: 
 6563: =item scantron_add_delay
 6564: 
 6565:    Adds an error message that occurred during the grading phase to a
 6566:    queue of messages to be shown after grading pass is complete
 6567: 
 6568:  Arguments:
 6569:    $delayqueue  - arrary ref of hash ref of error messages
 6570:    $scanline    - the scanline that caused the error
 6571:    $errormesage - the error message
 6572:    $errorcode   - a numeric code for the error
 6573: 
 6574:  Side Effects:
 6575:    updates the $delayqueue to have a new hash ref of the error
 6576: 
 6577: =cut
 6578: 
 6579: sub scantron_add_delay {
 6580:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
 6581:     push(@$delayqueue,
 6582: 	 {'line' => $scanline, 'emsg' => $errormessage,
 6583: 	  'ecode' => $errorcode }
 6584: 	 );
 6585: }
 6586: 
 6587: =pod
 6588: 
 6589: =item scantron_find_student
 6590: 
 6591:    Finds the username for the current scanline
 6592: 
 6593:   Arguments:
 6594:    $scantron_record - hash result from scantron_parse_scanline
 6595:    $scan_data       - hash of correction information 
 6596:                       (see &scantron_getfile() form more information)
 6597:    $idmap           - hash from &username_to_idmap()
 6598:    $line            - number of current scanline
 6599:  
 6600:   Returns:
 6601:    Either 'username:domain' or undef if unknown
 6602: 
 6603: =cut
 6604: 
 6605: sub scantron_find_student {
 6606:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
 6607:     my $scanID=$$scantron_record{'scantron.ID'};
 6608:     if ($scanID =~ /^\s*$/) {
 6609:  	return &scan_data($scan_data,"$line.user");
 6610:     }
 6611:     foreach my $id (keys(%$idmap)) {
 6612:  	if (lc($id) eq lc($scanID)) {
 6613:  	    return $$idmap{$id};
 6614:  	}
 6615:     }
 6616:     return undef;
 6617: }
 6618: 
 6619: =pod
 6620: 
 6621: =item scantron_filter
 6622: 
 6623:    Filter sub for lonnavmaps, filters out hidden resources if ignore
 6624:    hidden resources was selected
 6625: 
 6626: =cut
 6627: 
 6628: sub scantron_filter {
 6629:     my ($curres)=@_;
 6630: 
 6631:     if (ref($curres) && $curres->is_problem()) {
 6632: 	# if the user has asked to not have either hidden
 6633: 	# or 'randomout' controlled resources to be graded
 6634: 	# don't include them
 6635: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6636: 	    && $curres->randomout) {
 6637: 	    return 0;
 6638: 	}
 6639: 	return 1;
 6640:     }
 6641:     return 0;
 6642: }
 6643: 
 6644: =pod
 6645: 
 6646: =item scantron_process_corrections
 6647: 
 6648:    Gets correction information out of submitted form data and corrects
 6649:    the scanline
 6650: 
 6651: =cut
 6652: 
 6653: sub scantron_process_corrections {
 6654:     my ($r) = @_;
 6655:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6656:     my ($scanlines,$scan_data)=&scantron_getfile();
 6657:     my $classlist=&Apache::loncoursedata::get_classlist();
 6658:     my $which=$env{'form.scantron_line'};
 6659:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
 6660:     my ($skip,$err,$errmsg);
 6661:     if ($env{'form.scantron_skip_record'}) {
 6662: 	$skip=1;
 6663:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
 6664: 	my $newstudent=$env{'form.scantron_username'}.':'.
 6665: 	    $env{'form.scantron_domain'};
 6666: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
 6667: 	($line,$err,$errmsg)=
 6668: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6669: 				     'ID',{'newid'=>$newid,
 6670: 				    'username'=>$env{'form.scantron_username'},
 6671: 				    'domain'=>$env{'form.scantron_domain'}});
 6672:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
 6673: 	my $resolution=$env{'form.scantron_CODE_resolution'};
 6674: 	my $newCODE;
 6675: 	my %args;
 6676: 	if      ($resolution eq 'use_unfound') {
 6677: 	    $newCODE='use_unfound';
 6678: 	} elsif ($resolution eq 'use_found') {
 6679: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
 6680: 	} elsif ($resolution eq 'use_typed') {
 6681: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
 6682: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
 6683: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
 6684: 	}
 6685: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
 6686: 	    $args{'CODE_ignore_dup'}=1;
 6687: 	}
 6688: 	$args{'CODE'}=$newCODE;
 6689: 	($line,$err,$errmsg)=
 6690: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6691: 				     'CODE',\%args);
 6692:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
 6693: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
 6694: 	    ($line,$err,$errmsg)=
 6695: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
 6696: 					 $which,'answer',
 6697: 					 { 'question'=>$question,
 6698: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
 6699:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
 6700: 	    if ($err) { last; }
 6701: 	}
 6702:     }
 6703:     if ($err) {
 6704: 	$r->print(
 6705:             '<p class="LC_error">'
 6706:            .&mt('Unable to accept last correction, an error occurred: [_1]',
 6707:                 $errmsg)
 6708:            .'</p>');
 6709:     } else {
 6710: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 6711: 	&scantron_putfile($scanlines,$scan_data);
 6712:     }
 6713: }
 6714: 
 6715: =pod
 6716: 
 6717: =item reset_skipping_status
 6718: 
 6719:    Forgets the current set of remember skipped scanlines (and thus
 6720:    reverts back to considering all lines in the
 6721:    scantron_skipped_<filename> file)
 6722: 
 6723: =cut
 6724: 
 6725: sub reset_skipping_status {
 6726:     my ($scanlines,$scan_data)=&scantron_getfile();
 6727:     &scan_data($scan_data,'remember_skipping',undef,1);
 6728:     &scantron_putfile(undef,$scan_data);
 6729: }
 6730: 
 6731: =pod
 6732: 
 6733: =item start_skipping
 6734: 
 6735:    Marks a scanline to be skipped. 
 6736: 
 6737: =cut
 6738: 
 6739: sub start_skipping {
 6740:     my ($scan_data,$i)=@_;
 6741:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6742:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
 6743: 	$remembered{$i}=2;
 6744:     } else {
 6745: 	$remembered{$i}=1;
 6746:     }
 6747:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
 6748: }
 6749: 
 6750: =pod
 6751: 
 6752: =item should_be_skipped
 6753: 
 6754:    Checks whether a scanline should be skipped.
 6755: 
 6756: =cut
 6757: 
 6758: sub should_be_skipped {
 6759:     my ($scanlines,$scan_data,$i)=@_;
 6760:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
 6761: 	# not redoing old skips
 6762: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
 6763: 	return 0;
 6764:     }
 6765:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6766: 
 6767:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
 6768: 	return 0;
 6769:     }
 6770:     return 1;
 6771: }
 6772: 
 6773: =pod
 6774: 
 6775: =item remember_current_skipped
 6776: 
 6777:    Discovers what scanlines are in the scantron_skipped_<filename>
 6778:    file and remembers them into scan_data for later use.
 6779: 
 6780: =cut
 6781: 
 6782: sub remember_current_skipped {
 6783:     my ($scanlines,$scan_data)=&scantron_getfile();
 6784:     my %to_remember;
 6785:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6786: 	if ($scanlines->{'skipped'}[$i]) {
 6787: 	    $to_remember{$i}=1;
 6788: 	}
 6789:     }
 6790: 
 6791:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
 6792:     &scantron_putfile(undef,$scan_data);
 6793: }
 6794: 
 6795: =pod
 6796: 
 6797: =item check_for_error
 6798: 
 6799:     Checks if there was an error when attempting to remove a specific
 6800:     scantron_.. bubblesheet data file. Prints out an error if
 6801:     something went wrong.
 6802: 
 6803: =cut
 6804: 
 6805: sub check_for_error {
 6806:     my ($r,$result)=@_;
 6807:     if ($result ne 'ok' && $result ne 'not_found' ) {
 6808: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
 6809:     }
 6810: }
 6811: 
 6812: =pod
 6813: 
 6814: =item scantron_warning_screen
 6815: 
 6816:    Interstitial screen to make sure the operator has selected the
 6817:    correct options before we start the validation phase.
 6818: 
 6819: =cut
 6820: 
 6821: sub scantron_warning_screen {
 6822:     my ($button_text)=@_;
 6823:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
 6824:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6825:     my $CODElist;
 6826:     if ($scantron_config{'CODElocation'} &&
 6827: 	$scantron_config{'CODEstart'} &&
 6828: 	$scantron_config{'CODElength'}) {
 6829: 	$CODElist=$env{'form.scantron_CODElist'};
 6830: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">'.&mt('None').'</span>'; }
 6831: 	$CODElist=
 6832: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 6833: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
 6834:     }
 6835:     my $lastbubblepoints;
 6836:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 6837:         $lastbubblepoints =
 6838:             '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
 6839:             $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
 6840:     }
 6841:     return ('
 6842: <p>
 6843: <span class="LC_warning">
 6844: '.&mt("Please double check the information below before clicking on '[_1]'",&mt($button_text)).'</span>
 6845: </p>
 6846: <table>
 6847: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 6848: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
 6849: '.$CODElist.$lastbubblepoints.'
 6850: </table>
 6851: <br />
 6852: <p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'</p>
 6853: <p> '.&mt("If something is incorrect, please click the 'Grading Menu' button to start over.").'</p>
 6854: 
 6855: <br />
 6856: ');
 6857: }
 6858: 
 6859: =pod
 6860: 
 6861: =item scantron_do_warning
 6862: 
 6863:    Check if the operator has picked something for all required
 6864:    fields. Error out if something is missing.
 6865: 
 6866: =cut
 6867: 
 6868: sub scantron_do_warning {
 6869:     my ($r)=@_;
 6870:     my ($symb)=&get_symb($r);
 6871:     if (!$symb) {return '';}
 6872:     my $default_form_data=&defaultFormData($symb);
 6873:     $r->print(&scantron_form_start().$default_form_data);
 6874:     if ( $env{'form.selectpage'} eq '' ||
 6875: 	 $env{'form.scantron_selectfile'} eq '' ||
 6876: 	 $env{'form.scantron_format'} eq '' ) {
 6877: 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
 6878: 	if ( $env{'form.selectpage'} eq '') {
 6879: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 6880: 	} 
 6881: 	if ( $env{'form.scantron_selectfile'} eq '') {
 6882: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
 6883: 	} 
 6884: 	if ( $env{'form.scantron_format'} eq '') {
 6885: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
 6886: 	} 
 6887:     } else {
 6888: 	my $warning=&scantron_warning_screen('Grading: Validate Records');
 6889:         my $bubbledbyhand=&hand_bubble_option();
 6890: 	$r->print('
 6891: '.$warning.$bubbledbyhand.'
 6892: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 6893: <input type="hidden" name="command" value="scantron_validate" />
 6894: ');
 6895:     }
 6896:     $r->print("</form><br />".&show_grading_menu_form($symb));
 6897:     return '';
 6898: }
 6899: 
 6900: =pod
 6901: 
 6902: =item scantron_form_start
 6903: 
 6904:     html hidden input for remembering all selected grading options
 6905: 
 6906: =cut
 6907: 
 6908: sub scantron_form_start {
 6909:     my ($max_bubble)=@_;
 6910:     my $result= <<SCANTRONFORM;
 6911: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 6912:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
 6913:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
 6914:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
 6915:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
 6916:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
 6917:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
 6918:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
 6919:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
 6920:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
 6921: SCANTRONFORM
 6922: 
 6923:   my $line = 0;
 6924:     while (defined($env{"form.scantron.bubblelines.$line"})) {
 6925:        my $chunk =
 6926: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
 6927:        $chunk .=
 6928: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
 6929:        $chunk .= 
 6930:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
 6931:        $chunk .=
 6932:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
 6933:        $chunk .=
 6934:            '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
 6935:        $result .= $chunk;
 6936:        $line++;
 6937:     }
 6938:     return $result;
 6939: }
 6940: 
 6941: =pod
 6942: 
 6943: =item scantron_validate_file
 6944: 
 6945:     Dispatch routine for doing validation of a bubblesheet data file.
 6946: 
 6947:     Also processes any necessary information resets that need to
 6948:     occur before validation begins (ignore previous corrections,
 6949:     restarting the skipped records processing)
 6950: 
 6951: =cut
 6952: 
 6953: sub scantron_validate_file {
 6954:     my ($r) = @_;
 6955:     my ($symb)=&get_symb($r);
 6956:     if (!$symb) {return '';}
 6957:     my $default_form_data=&defaultFormData($symb);
 6958:     
 6959:     # do the detection of only doing skipped records first before we delete
 6960:     # them when doing the corrections reset
 6961:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 6962: 	&reset_skipping_status();
 6963:     }
 6964:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
 6965: 	&remember_current_skipped();
 6966: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
 6967:     }
 6968: 
 6969:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
 6970: 	&check_for_error($r,&scantron_remove_file('corrected'));
 6971: 	&check_for_error($r,&scantron_remove_file('skipped'));
 6972: 	&check_for_error($r,&scantron_remove_scan_data());
 6973: 	$env{'form.scantron_options_ignore'}='done';
 6974:     }
 6975: 
 6976:     if ($env{'form.scantron_corrections'}) {
 6977: 	&scantron_process_corrections($r);
 6978:     }
 6979:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
 6980:     #get the student pick code ready
 6981:     $r->print(&Apache::loncommon::studentbrowser_javascript());
 6982:     my $nav_error;
 6983:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6984:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 6985:     if ($nav_error) {
 6986:         $r->print(&navmap_errormsg());
 6987:         return '';
 6988:     }
 6989:     my $result=&scantron_form_start($max_bubble).$default_form_data;
 6990:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 6991:         $result .= '<input type="hidden" name="scantron_lastbubblepoints" value="'.$env{'form.scantron_lastbubblepoints'}.'" />';
 6992:     }
 6993:     $r->print($result);
 6994:     
 6995:     my @validate_phases=( 'sequence',
 6996: 			  'ID',
 6997: 			  'CODE',
 6998: 			  'doublebubble',
 6999: 			  'missingbubbles');
 7000:     if (!$env{'form.validatepass'}) {
 7001: 	$env{'form.validatepass'} = 0;
 7002:     }
 7003:     my $currentphase=$env{'form.validatepass'};
 7004: 
 7005: 
 7006:     my $stop=0;
 7007:     while (!$stop && $currentphase < scalar(@validate_phases)) {
 7008: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 7009: 	$r->rflush();
 7010: 
 7011: 	my $which="scantron_validate_".$validate_phases[$currentphase];
 7012: 	{
 7013: 	    no strict 'refs';
 7014: 	    ($stop,$currentphase)=&$which($r,$currentphase);
 7015: 	}
 7016:     }
 7017:     if (!$stop) {
 7018: 	my $warning=&scantron_warning_screen('Start Grading');
 7019: 	$r->print(&mt('Validation process complete.').'<br />'.
 7020:                   $warning.
 7021:                   &mt('Perform verification for each student after storage of submissions?').
 7022:                   '&nbsp;<span class="LC_nobreak"><label>'.
 7023:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
 7024:                   ('&nbsp;'x3).'<label>'.
 7025:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
 7026:                   '</label></span><br />'.
 7027:                   &mt('Grading will take longer if you use verification.').'<br />'.
 7028:                   &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'<br /><br />'.
 7029:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
 7030:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
 7031:     } else {
 7032: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
 7033: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
 7034:     }
 7035:     if ($stop) {
 7036: 	if ($validate_phases[$currentphase] eq 'sequence') {
 7037: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 7038: 	    $r->print(' '.&mt('this error').' <br />');
 7039: 
 7040: 	    $r->print(" <p>".&mt("Or click the 'Grading Menu' button to start over.")."</p>");
 7041: 	} else {
 7042:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 7043: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
 7044:             } else {
 7045:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
 7046:             }
 7047: 	    $r->print(' '.&mt('using corrected info').' <br />');
 7048: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
 7049: 	    $r->print(" ".&mt("this scanline saving it for later."));
 7050: 	}
 7051:     }
 7052:     $r->print(" </form><br />".&show_grading_menu_form($symb));
 7053:     return '';
 7054: }
 7055: 
 7056: 
 7057: =pod
 7058: 
 7059: =item scantron_remove_file
 7060: 
 7061:    Removes the requested bubblesheet data file, makes sure that
 7062:    scantron_original_<filename> is never removed
 7063: 
 7064: 
 7065: =cut
 7066: 
 7067: sub scantron_remove_file {
 7068:     my ($which)=@_;
 7069:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7070:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7071:     my $file='scantron_';
 7072:     if ($which eq 'corrected' || $which eq 'skipped') {
 7073: 	$file.=$which.'_';
 7074:     } else {
 7075: 	return 'refused';
 7076:     }
 7077:     $file.=$env{'form.scantron_selectfile'};
 7078:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
 7079: }
 7080: 
 7081: 
 7082: =pod
 7083: 
 7084: =item scantron_remove_scan_data
 7085: 
 7086:    Removes all scan_data correction for the requested bubblesheet
 7087:    data file.  (In the case that both the are doing skipped records we need
 7088:    to remember the old skipped lines for the time being so that element
 7089:    persists for a while.)
 7090: 
 7091: =cut
 7092: 
 7093: sub scantron_remove_scan_data {
 7094:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7095:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7096:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
 7097:     my @todelete;
 7098:     my $filename=$env{'form.scantron_selectfile'};
 7099:     foreach my $key (@keys) {
 7100: 	if ($key=~/^\Q$filename\E_/) {
 7101: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
 7102: 		$key=~/remember_skipping/) {
 7103: 		next;
 7104: 	    }
 7105: 	    push(@todelete,$key);
 7106: 	}
 7107:     }
 7108:     my $result;
 7109:     if (@todelete) {
 7110: 	$result = &Apache::lonnet::del('nohist_scantrondata',
 7111: 				       \@todelete,$cdom,$cname);
 7112:     } else {
 7113: 	$result = 'ok';
 7114:     }
 7115:     return $result;
 7116: }
 7117: 
 7118: 
 7119: =pod
 7120: 
 7121: =item scantron_getfile
 7122: 
 7123:     Fetches the requested bubblesheet data file (all 3 versions), and
 7124:     the scan_data hash
 7125:   
 7126:   Arguments:
 7127:     None
 7128: 
 7129:   Returns:
 7130:     2 hash references
 7131: 
 7132:      - first one has 
 7133:          orig      -
 7134:          corrected -
 7135:          skipped   -  each of which points to an array ref of the specified
 7136:                       file broken up into individual lines
 7137:          count     - number of scanlines
 7138:  
 7139:      - second is the scan_data hash possible keys are
 7140:        ($number refers to scanline numbered $number and thus the key affects
 7141:         only that scanline
 7142:         $bubline refers to the specific bubble line element and the aspects
 7143:         refers to that specific bubble line element)
 7144: 
 7145:        $number.user - username:domain to use
 7146:        $number.CODE_ignore_dup 
 7147:                     - ignore the duplicate CODE error 
 7148:        $number.useCODE
 7149:                     - use the CODE in the scanline as is
 7150:        $number.no_bubble.$bubline
 7151:                     - it is valid that there is no bubbled in bubble
 7152:                       at $number $bubline
 7153:        remember_skipping
 7154:                     - a frozen hash containing keys of $number and values
 7155:                       of either 
 7156:                         1 - we are on a 'do skipped records pass' and plan
 7157:                             on processing this line
 7158:                         2 - we are on a 'do skipped records pass' and this
 7159:                             scanline has been marked to skip yet again
 7160: 
 7161: =cut
 7162: 
 7163: sub scantron_getfile {
 7164:     #FIXME really would prefer a scantron directory
 7165:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7166:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7167:     my $lines;
 7168:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7169: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
 7170:     my %scanlines;
 7171:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
 7172:     my $temp=$scanlines{'orig'};
 7173:     $scanlines{'count'}=$#$temp;
 7174: 
 7175:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7176: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
 7177:     if ($lines eq '-1') {
 7178: 	$scanlines{'corrected'}=[];
 7179:     } else {
 7180: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
 7181:     }
 7182:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 7183: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
 7184:     if ($lines eq '-1') {
 7185: 	$scanlines{'skipped'}=[];
 7186:     } else {
 7187: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
 7188:     }
 7189:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
 7190:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
 7191:     my %scan_data = @tmp;
 7192:     return (\%scanlines,\%scan_data);
 7193: }
 7194: 
 7195: =pod
 7196: 
 7197: =item lonnet_putfile
 7198: 
 7199:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
 7200: 
 7201:  Arguments:
 7202:    $contents - data to store
 7203:    $filename - filename to store $contents into
 7204: 
 7205:  Returns:
 7206:    result value from &Apache::lonnet::finishuserfileupload
 7207: 
 7208: =cut
 7209: 
 7210: sub lonnet_putfile {
 7211:     my ($contents,$filename)=@_;
 7212:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7213:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7214:     $env{'form.sillywaytopassafilearound'}=$contents;
 7215:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
 7216: 
 7217: }
 7218: 
 7219: =pod
 7220: 
 7221: =item scantron_putfile
 7222: 
 7223:     Stores the current version of the bubblesheet data files, and the
 7224:     scan_data hash. (Does not modify the original version only the
 7225:     corrected and skipped versions.
 7226: 
 7227:  Arguments:
 7228:     $scanlines - hash ref that looks like the first return value from
 7229:                  &scantron_getfile()
 7230:     $scan_data - hash ref that looks like the second return value from
 7231:                  &scantron_getfile()
 7232: 
 7233: =cut
 7234: 
 7235: sub scantron_putfile {
 7236:     my ($scanlines,$scan_data) = @_;
 7237:     #FIXME really would prefer a scantron directory
 7238:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 7239:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 7240:     if ($scanlines) {
 7241: 	my $prefix='scantron_';
 7242: # no need to update orig, shouldn't change
 7243: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
 7244: #		    $env{'form.scantron_selectfile'});
 7245: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
 7246: 			$prefix.'corrected_'.
 7247: 			$env{'form.scantron_selectfile'});
 7248: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
 7249: 			$prefix.'skipped_'.
 7250: 			$env{'form.scantron_selectfile'});
 7251:     }
 7252:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
 7253: }
 7254: 
 7255: =pod
 7256: 
 7257: =item scantron_get_line
 7258: 
 7259:    Returns the correct version of the scanline
 7260: 
 7261:  Arguments:
 7262:     $scanlines - hash ref that looks like the first return value from
 7263:                  &scantron_getfile()
 7264:     $scan_data - hash ref that looks like the second return value from
 7265:                  &scantron_getfile()
 7266:     $i         - number of the requested line (starts at 0)
 7267: 
 7268:  Returns:
 7269:    A scanline, (either the original or the corrected one if it
 7270:    exists), or undef if the requested scanline should be
 7271:    skipped. (Either because it's an skipped scanline, or it's an
 7272:    unskipped scanline and we are not doing a 'do skipped scanlines'
 7273:    pass.
 7274: 
 7275: =cut
 7276: 
 7277: sub scantron_get_line {
 7278:     my ($scanlines,$scan_data,$i)=@_;
 7279:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
 7280:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
 7281:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
 7282:     return $scanlines->{'orig'}[$i]; 
 7283: }
 7284: 
 7285: =pod
 7286: 
 7287: =item scantron_todo_count
 7288: 
 7289:     Counts the number of scanlines that need processing.
 7290: 
 7291:  Arguments:
 7292:     $scanlines - hash ref that looks like the first return value from
 7293:                  &scantron_getfile()
 7294:     $scan_data - hash ref that looks like the second return value from
 7295:                  &scantron_getfile()
 7296: 
 7297:  Returns:
 7298:     $count - number of scanlines to process
 7299: 
 7300: =cut
 7301: 
 7302: sub get_todo_count {
 7303:     my ($scanlines,$scan_data)=@_;
 7304:     my $count=0;
 7305:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7306: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7307: 	if ($line=~/^[\s\cz]*$/) { next; }
 7308: 	$count++;
 7309:     }
 7310:     return $count;
 7311: }
 7312: 
 7313: =pod
 7314: 
 7315: =item scantron_put_line
 7316: 
 7317:     Updates the 'corrected' or 'skipped' versions of the bubblesheet
 7318:     data file.
 7319: 
 7320:  Arguments:
 7321:     $scanlines - hash ref that looks like the first return value from
 7322:                  &scantron_getfile()
 7323:     $scan_data - hash ref that looks like the second return value from
 7324:                  &scantron_getfile()
 7325:     $i         - line number to update
 7326:     $newline   - contents of the updated scanline
 7327:     $skip      - if true make the line for skipping and update the
 7328:                  'skipped' file
 7329: 
 7330: =cut
 7331: 
 7332: sub scantron_put_line {
 7333:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
 7334:     if ($skip) {
 7335: 	$scanlines->{'skipped'}[$i]=$newline;
 7336: 	&start_skipping($scan_data,$i);
 7337: 	return;
 7338:     }
 7339:     $scanlines->{'corrected'}[$i]=$newline;
 7340: }
 7341: 
 7342: =pod
 7343: 
 7344: =item scantron_clear_skip
 7345: 
 7346:    Remove a line from the 'skipped' file
 7347: 
 7348:  Arguments:
 7349:     $scanlines - hash ref that looks like the first return value from
 7350:                  &scantron_getfile()
 7351:     $scan_data - hash ref that looks like the second return value from
 7352:                  &scantron_getfile()
 7353:     $i         - line number to update
 7354: 
 7355: =cut
 7356: 
 7357: sub scantron_clear_skip {
 7358:     my ($scanlines,$scan_data,$i)=@_;
 7359:     if (exists($scanlines->{'skipped'}[$i])) {
 7360: 	undef($scanlines->{'skipped'}[$i]);
 7361: 	return 1;
 7362:     }
 7363:     return 0;
 7364: }
 7365: 
 7366: =pod
 7367: 
 7368: =item scantron_filter_not_exam
 7369: 
 7370:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
 7371:    filter out resources that are not marked as 'exam' mode
 7372: 
 7373: =cut
 7374: 
 7375: sub scantron_filter_not_exam {
 7376:     my ($curres)=@_;
 7377:     
 7378:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
 7379: 	# if the user has asked to not have either hidden
 7380: 	# or 'randomout' controlled resources to be graded
 7381: 	# don't include them
 7382: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 7383: 	    && $curres->randomout) {
 7384: 	    return 0;
 7385: 	}
 7386: 	return 1;
 7387:     }
 7388:     return 0;
 7389: }
 7390: 
 7391: =pod
 7392: 
 7393: =item scantron_validate_sequence
 7394: 
 7395:     Validates the selected sequence, checking for resource that are
 7396:     not set to exam mode.
 7397: 
 7398: =cut
 7399: 
 7400: sub scantron_validate_sequence {
 7401:     my ($r,$currentphase) = @_;
 7402: 
 7403:     my $navmap=Apache::lonnavmaps::navmap->new();
 7404:     unless (ref($navmap)) {
 7405:         $r->print(&navmap_errormsg());
 7406:         return (1,$currentphase);
 7407:     }
 7408:     my (undef,undef,$sequence)=
 7409: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7410: 
 7411:     my $map=$navmap->getResourceByUrl($sequence);
 7412: 
 7413:     $r->print('<input type="hidden" name="validate_sequence_exam"
 7414:                                     value="ignore" />');
 7415:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
 7416: 	my @resources=
 7417: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 7418: 	if (@resources) {
 7419: 	    $r->print('<p class="LC_warning">'
 7420:                .&mt('Some resources in the sequence currently are not set to'
 7421:                    .' exam mode. Grading these resources currently may not'
 7422:                    .' work correctly.')
 7423:                .'</p>'
 7424:             );
 7425: 	    return (1,$currentphase);
 7426: 	}
 7427:     }
 7428: 
 7429:     return (0,$currentphase+1);
 7430: }
 7431: 
 7432: 
 7433: 
 7434: sub scantron_validate_ID {
 7435:     my ($r,$currentphase) = @_;
 7436:     
 7437:     #get student info
 7438:     my $classlist=&Apache::loncoursedata::get_classlist();
 7439:     my %idmap=&username_to_idmap($classlist);
 7440: 
 7441:     #get scantron line setup
 7442:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7443:     my ($scanlines,$scan_data)=&scantron_getfile();
 7444: 
 7445:     my $nav_error;
 7446:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
 7447:     if ($nav_error) {
 7448:         $r->print(&navmap_errormsg());
 7449:         return(1,$currentphase);
 7450:     }
 7451: 
 7452:     my %found=('ids'=>{},'usernames'=>{});
 7453:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7454: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7455: 	if ($line=~/^[\s\cz]*$/) { next; }
 7456: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7457: 						 $scan_data);
 7458: 	my $id=$$scan_record{'scantron.ID'};
 7459: 	my $found;
 7460: 	foreach my $checkid (keys(%idmap)) {
 7461: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
 7462: 	}
 7463: 	if ($found) {
 7464: 	    my $username=$idmap{$found};
 7465: 	    if ($found{'ids'}{$found}) {
 7466: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7467: 					 $line,'duplicateID',$found);
 7468: 		return(1,$currentphase);
 7469: 	    } elsif ($found{'usernames'}{$username}) {
 7470: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7471: 					 $line,'duplicateID',$username);
 7472: 		return(1,$currentphase);
 7473: 	    }
 7474: 	    #FIXME store away line we previously saw the ID on to use above
 7475: 	    $found{'ids'}{$found}++;
 7476: 	    $found{'usernames'}{$username}++;
 7477: 	} else {
 7478: 	    if ($id =~ /^\s*$/) {
 7479: 		my $username=&scan_data($scan_data,"$i.user");
 7480: 		if (defined($username) && $found{'usernames'}{$username}) {
 7481: 		    &scantron_get_correction($r,$i,$scan_record,
 7482: 					     \%scantron_config,
 7483: 					     $line,'duplicateID',$username);
 7484: 		    return(1,$currentphase);
 7485: 		} elsif (!defined($username)) {
 7486: 		    &scantron_get_correction($r,$i,$scan_record,
 7487: 					     \%scantron_config,
 7488: 					     $line,'incorrectID');
 7489: 		    return(1,$currentphase);
 7490: 		}
 7491: 		$found{'usernames'}{$username}++;
 7492: 	    } else {
 7493: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7494: 					 $line,'incorrectID');
 7495: 		return(1,$currentphase);
 7496: 	    }
 7497: 	}
 7498:     }
 7499: 
 7500:     return (0,$currentphase+1);
 7501: }
 7502: 
 7503: 
 7504: sub scantron_get_correction {
 7505:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
 7506:         $randomorder,$randompick,$respnumlookup,$startline)=@_;
 7507: #FIXME in the case of a duplicated ID the previous line, probably need
 7508: #to show both the current line and the previous one and allow skipping
 7509: #the previous one or the current one
 7510: 
 7511:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
 7512:         $r->print(
 7513:             '<p class="LC_warning">'
 7514:            .&mt('An error was detected ([_1]) for PaperID [_2]',
 7515:                 "<b>$error</b>",
 7516:                 '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
 7517:            ."</p> \n");
 7518:     } else {
 7519:         $r->print(
 7520:             '<p class="LC_warning">'
 7521:            .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
 7522:                 "<b>$error</b>", $i, "<pre>$line</pre>")
 7523:            ."</p> \n");
 7524:     }
 7525:     my $message =
 7526:         '<p>'
 7527:        .&mt('The ID on the form is [_1]',
 7528:             "<tt>$$scan_record{'scantron.ID'}</tt>")
 7529:        .'<br />'
 7530:        .&mt('The name on the paper is [_1], [_2]',
 7531:             $$scan_record{'scantron.LastName'},
 7532:             $$scan_record{'scantron.FirstName'})
 7533:        .'</p>';
 7534: 
 7535:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
 7536:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
 7537:                            # Array populated for doublebubble or
 7538:     my @lines_to_correct;  # missingbubble errors to build javascript
 7539:                            # to validate radio button checking   
 7540: 
 7541:     if ($error =~ /ID$/) {
 7542: 	if ($error eq 'incorrectID') {
 7543: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
 7544: 		      "</p>\n");
 7545: 	} elsif ($error eq 'duplicateID') {
 7546: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 7547: 	}
 7548: 	$r->print($message);
 7549: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 7550: 	$r->print("\n<ul><li> ");
 7551: 	#FIXME it would be nice if this sent back the user ID and
 7552: 	#could do partial userID matches
 7553: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 7554: 				       'scantron_username','scantron_domain'));
 7555: 	$r->print(": <input type='text' name='scantron_username' value='' />");
 7556: 	$r->print("\n:\n".
 7557: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 7558: 
 7559: 	$r->print('</li>');
 7560:     } elsif ($error =~ /CODE$/) {
 7561: 	if ($error eq 'incorrectCODE') {
 7562: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 7563: 	} elsif ($error eq 'duplicateCODE') {
 7564: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 7565: 	}
 7566:         $r->print("<p>".&mt('The CODE on the form is [_1]',
 7567:                             "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
 7568:                  ."</p>\n");
 7569: 	$r->print($message);
 7570: 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
 7571: 	$r->print("\n<br /> ");
 7572: 	my $i=0;
 7573: 	if ($error eq 'incorrectCODE' 
 7574: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
 7575: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
 7576: 	    if ($closest > 0) {
 7577: 		foreach my $testcode (@{$closest}) {
 7578: 		    my $checked='';
 7579: 		    if (!$i) { $checked=' checked="checked"'; }
 7580: 		    $r->print("
 7581:    <label>
 7582:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
 7583:        ".&mt("Use the similar CODE [_1] instead.",
 7584: 	    "<b><tt>".$testcode."</tt></b>")."
 7585:     </label>
 7586:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
 7587: 		    $r->print("\n<br />");
 7588: 		    $i++;
 7589: 		}
 7590: 	    }
 7591: 	}
 7592: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
 7593: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
 7594: 	    $r->print("
 7595:     <label>
 7596:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
 7597:        ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
 7598: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
 7599:     </label>");
 7600: 	    $r->print("\n<br />");
 7601: 	}
 7602: 
 7603: 	$r->print(<<ENDSCRIPT);
 7604: <script type="text/javascript">
 7605: function change_radio(field) {
 7606:     var slct=document.scantronupload.scantron_CODE_resolution;
 7607:     var i;
 7608:     for (i=0;i<slct.length;i++) {
 7609:         if (slct[i].value==field) { slct[i].checked=true; }
 7610:     }
 7611: }
 7612: </script>
 7613: ENDSCRIPT
 7614: 	my $href="/adm/pickcode?".
 7615: 	   "form=".&escape("scantronupload").
 7616: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
 7617: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
 7618: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
 7619: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
 7620: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
 7621: 	    $r->print("
 7622:     <label>
 7623:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
 7624:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
 7625: 	     "<a target='_blank' href='$href'>","</a>")."
 7626:     </label> 
 7627:     ".&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\')" />'));
 7628: 	    $r->print("\n<br />");
 7629: 	}
 7630: 	$r->print("
 7631:     <label>
 7632:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
 7633:        ".&mt("Use [_1] as the CODE.",
 7634: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 7635: 	$r->print("\n<br /><br />");
 7636:     } elsif ($error eq 'doublebubble') {
 7637: 	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 7638: 
 7639: 	# The form field scantron_questions is acutally a list of line numbers.
 7640: 	# represented by this form so:
 7641: 
 7642: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7643:                                                 $respnumlookup,$startline);
 7644: 
 7645: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7646: 		  $line_list.'" />');
 7647: 	$r->print($message);
 7648: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 7649: 	foreach my $question (@{$arg}) {
 7650: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7651:                                                    $scan_record, $error,
 7652:                                                    $randomorder,$randompick,
 7653:                                                    $respnumlookup,$startline);
 7654:             push(@lines_to_correct,@linenums);
 7655: 	}
 7656:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7657:     } elsif ($error eq 'missingbubble') {
 7658: 	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
 7659: 	$r->print($message);
 7660: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 7661: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
 7662: 
 7663: 	# The form field scantron_questions is actually a list of line numbers not
 7664: 	# a list of question numbers. Therefore:
 7665: 	#
 7666: 	
 7667: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7668:                                                 $respnumlookup,$startline);
 7669: 
 7670: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7671: 		  $line_list.'" />');
 7672: 	foreach my $question (@{$arg}) {
 7673: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7674:                                                    $scan_record, $error,
 7675:                                                    $randomorder,$randompick,
 7676:                                                    $respnumlookup,$startline);
 7677:             push(@lines_to_correct,@linenums);
 7678: 	}
 7679:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7680:     } else {
 7681: 	$r->print("\n<ul>");
 7682:     }
 7683:     $r->print("\n</li></ul>");
 7684: }
 7685: 
 7686: sub verify_bubbles_checked {
 7687:     my (@ansnums) = @_;
 7688:     my $ansnumstr = join('","',@ansnums);
 7689:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
 7690:     my $output = (<<ENDSCRIPT);
 7691: <script type="text/javascript">
 7692: function verify_bubble_radio(form) {
 7693:     var ansnumArray = new Array ("$ansnumstr");
 7694:     var need_bubble_count = 0;
 7695:     for (var i=0; i<ansnumArray.length; i++) {
 7696:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
 7697:             var bubble_picked = 0; 
 7698:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
 7699:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
 7700:                     bubble_picked = 1;
 7701:                 }
 7702:             }
 7703:             if (bubble_picked == 0) {
 7704:                 need_bubble_count ++;
 7705:             }
 7706:         }
 7707:     }
 7708:     if (need_bubble_count) {
 7709:         alert("$warning");
 7710:         return;
 7711:     }
 7712:     form.submit(); 
 7713: }
 7714: </script>
 7715: ENDSCRIPT
 7716:     return $output;
 7717: }
 7718: 
 7719: =pod
 7720: 
 7721: =item  questions_to_line_list
 7722: 
 7723: Converts a list of questions into a string of comma separated
 7724: line numbers in the answer sheet used by the questions.  This is
 7725: used to fill in the scantron_questions form field.
 7726: 
 7727:   Arguments:
 7728:      questions    - Reference to an array of questions.
 7729:      randomorder  - True if randomorder in use.
 7730:      randompick   - True if randompick in use.
 7731:      respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7732:                      for current line to question number used for same question
 7733:                      in "Master Seqence" (as seen by Course Coordinator).
 7734:      startline    - Reference to hash where key is question number (0 is first)
 7735:                     and key is number of first bubble line for current student
 7736:                     or code-based randompick and/or randomorder.
 7737: 
 7738: =cut
 7739: 
 7740: 
 7741: sub questions_to_line_list {
 7742:     my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
 7743:     my @lines;
 7744: 
 7745:     foreach my $item (@{$questions}) {
 7746:         my $question = $item;
 7747:         my ($first,$count,$last);
 7748:         if ($item =~ /^(\d+)\.(\d+)$/) {
 7749:             $question = $1;
 7750:             my $subquestion = $2;
 7751:             my $responsenum = $question-1;
 7752:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7753:                 $responsenum = $respnumlookup->{$question-1};
 7754:                 if (ref($startline) eq 'HASH') {
 7755:                     $first = $startline->{$question-1} + 1;
 7756:                 }
 7757:             } else {
 7758:                 $first = $first_bubble_line{$responsenum} + 1;
 7759:             }
 7760:             my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7761:             my $subcount = 1;
 7762:             while ($subcount<$subquestion) {
 7763:                 $first += $subans[$subcount-1];
 7764:                 $subcount ++;
 7765:             }
 7766:             $count = $subans[$subquestion-1];
 7767:         } else {
 7768:             my $responsenum = $question-1;
 7769:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7770:                 $responsenum = $respnumlookup->{$question-1};
 7771:                 if (ref($startline) eq 'HASH') {
 7772:                     $first = $startline->{$question-1} + 1;
 7773:                 }
 7774:             } else {
 7775:                 $first = $first_bubble_line{$responsenum} + 1;
 7776:             }
 7777:             $count   = $bubble_lines_per_response{$responsenum};
 7778:         }
 7779:         $last = $first+$count-1;
 7780:         push(@lines, ($first..$last));
 7781:     }
 7782:     return join(',', @lines);
 7783: }
 7784: 
 7785: =pod 
 7786: 
 7787: =item prompt_for_corrections
 7788: 
 7789: Prompts for a potentially multiline correction to the
 7790: user's bubbling (factors out common code from scantron_get_correction
 7791: for multi and missing bubble cases).
 7792: 
 7793:  Arguments:
 7794:    $r           - Apache request object.
 7795:    $question    - The question number to prompt for.
 7796:    $scan_config - The scantron file configuration hash.
 7797:    $scan_record - Reference to the hash that has the the parsed scanlines.
 7798:    $error       - Type of error
 7799:    $randomorder - True if randomorder in use.
 7800:    $randompick  - True if randompick in use.
 7801:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7802:                     for current line to question number used for same question
 7803:                     in "Master Seqence" (as seen by Course Coordinator).
 7804:    $startline   - Reference to hash where key is question number (0 is first)
 7805:                   and value is number of first bubble line for current student
 7806:                   or code-based randompick and/or randomorder.
 7807: 
 7808:  Implicit inputs:
 7809:    %bubble_lines_per_response   - Starting line numbers for each question.
 7810:                                   Numbered from 0 (but question numbers are from
 7811:                                   1.
 7812:    %first_bubble_line           - Starting bubble line for each question.
 7813:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
 7814:                                   type problems render as separate sub-questions, 
 7815:                                   in exam mode. This hash contains a 
 7816:                                   comma-separated list of the lines per 
 7817:                                   sub-question.
 7818:    %responsetype_per_response   - essayresponse, formularesponse,
 7819:                                   stringresponse, imageresponse, reactionresponse,
 7820:                                   and organicresponse type problem parts can have
 7821:                                   multiple lines per response if the weight
 7822:                                   assigned exceeds 10.  In this case, only
 7823:                                   one bubble per line is permitted, but more 
 7824:                                   than one line might contain bubbles, e.g.
 7825:                                   bubbling of: line 1 - J, line 2 - J, 
 7826:                                   line 3 - B would assign 22 points.  
 7827: 
 7828: =cut
 7829: 
 7830: sub prompt_for_corrections {
 7831:     my ($r, $question, $scan_config, $scan_record, $error, $randomorder,
 7832:         $randompick, $respnumlookup, $startline) = @_;
 7833:     my ($current_line,$lines);
 7834:     my @linenums;
 7835:     my $questionnum = $question;
 7836:     my ($first,$responsenum);
 7837:     if ($question =~ /^(\d+)\.(\d+)$/) {
 7838:         $question = $1;
 7839:         my $subquestion = $2;
 7840:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7841:             $responsenum = $respnumlookup->{$question-1};
 7842:             if (ref($startline) eq 'HASH') {
 7843:                 $first = $startline->{$question-1};
 7844:             }
 7845:         } else {
 7846:             $responsenum = $question-1;
 7847:             $first = $first_bubble_line{$responsenum};
 7848:         }
 7849:         $current_line = $first + 1 ;
 7850:         my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7851:         my $subcount = 1;
 7852:         while ($subcount<$subquestion) {
 7853:             $current_line += $subans[$subcount-1];
 7854:             $subcount ++;
 7855:         }
 7856:         $lines = $subans[$subquestion-1];
 7857:     } else {
 7858:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7859:             $responsenum = $respnumlookup->{$question-1};
 7860:             if (ref($startline) eq 'HASH') {
 7861:                 $first = $startline->{$question-1};
 7862:             }
 7863:         } else {
 7864:             $responsenum = $question-1;
 7865:             $first = $first_bubble_line{$responsenum};
 7866:         }
 7867:         $current_line = $first + 1;
 7868:         $lines        = $bubble_lines_per_response{$responsenum};
 7869:     }
 7870:     if ($lines > 1) {
 7871:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
 7872:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 7873:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 7874:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 7875:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 7876:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 7877:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 7878:             $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$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 />');
 7879:         } else {
 7880:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
 7881:         }
 7882:     }
 7883:     for (my $i =0; $i < $lines; $i++) {
 7884:         my $selected = $$scan_record{"scantron.$current_line.answer"};
 7885: 	&scantron_bubble_selector($r,$scan_config,$current_line,
 7886: 	        		  $questionnum,$error,split('', $selected));
 7887:         push(@linenums,$current_line);
 7888: 	$current_line++;
 7889:     }
 7890:     if ($lines > 1) {
 7891: 	$r->print("<hr /><br />");
 7892:     }
 7893:     return @linenums;
 7894: }
 7895: 
 7896: =pod
 7897: 
 7898: =item scantron_bubble_selector
 7899:   
 7900:    Generates the html radiobuttons to correct a single bubble line
 7901:    possibly showing the existing the selected bubbles if known
 7902: 
 7903:  Arguments:
 7904:     $r           - Apache request object
 7905:     $scan_config - hash from &get_scantron_config()
 7906:     $line        - Number of the line being displayed.
 7907:     $questionnum - Question number (may include subquestion)
 7908:     $error       - Type of error.
 7909:     @selected    - Array of bubbles picked on this line.
 7910: 
 7911: =cut
 7912: 
 7913: sub scantron_bubble_selector {
 7914:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
 7915:     my $max=$$scan_config{'Qlength'};
 7916: 
 7917:     my $scmode=$$scan_config{'Qon'};
 7918:     if ($scmode eq 'number' || $scmode eq 'letter') {
 7919:         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
 7920:             ($$scan_config{'BubblesPerRow'} > 0)) {
 7921:             $max=$$scan_config{'BubblesPerRow'};
 7922:             if (($scmode eq 'number') && ($max > 10)) {
 7923:                 $max = 10;
 7924:             } elsif (($scmode eq 'letter') && $max > 26) {
 7925:                 $max = 26;
 7926:             }
 7927:         } else {
 7928:             $max = 10;
 7929:         }
 7930:     }
 7931: 
 7932:     my @alphabet=('A'..'Z');
 7933:     $r->print(&Apache::loncommon::start_data_table().
 7934:               &Apache::loncommon::start_data_table_row());
 7935:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
 7936:     for (my $i=0;$i<$max+1;$i++) {
 7937: 	$r->print("\n".'<td align="center">');
 7938: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
 7939: 	else { $r->print('&nbsp;'); }
 7940: 	$r->print('</td>');
 7941:     }
 7942:     $r->print(&Apache::loncommon::end_data_table_row().
 7943:               &Apache::loncommon::start_data_table_row());
 7944:     for (my $i=0;$i<$max;$i++) {
 7945: 	$r->print("\n".
 7946: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
 7947: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
 7948:     }
 7949:     my $nobub_checked = ' ';
 7950:     if ($error eq 'missingbubble') {
 7951:         $nobub_checked = ' checked = "checked" ';
 7952:     }
 7953:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
 7954: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
 7955:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
 7956:               $line.'" value="'.$questionnum.'" /></td>');
 7957:     $r->print(&Apache::loncommon::end_data_table_row().
 7958:               &Apache::loncommon::end_data_table());
 7959: }
 7960: 
 7961: =pod
 7962: 
 7963: =item num_matches
 7964: 
 7965:    Counts the number of characters that are the same between the two arguments.
 7966: 
 7967:  Arguments:
 7968:    $orig - CODE from the scanline
 7969:    $code - CODE to match against
 7970: 
 7971:  Returns:
 7972:    $count - integer count of the number of same characters between the
 7973:             two arguments
 7974: 
 7975: =cut
 7976: 
 7977: sub num_matches {
 7978:     my ($orig,$code) = @_;
 7979:     my @code=split(//,$code);
 7980:     my @orig=split(//,$orig);
 7981:     my $same=0;
 7982:     for (my $i=0;$i<scalar(@code);$i++) {
 7983: 	if ($code[$i] eq $orig[$i]) { $same++; }
 7984:     }
 7985:     return $same;
 7986: }
 7987: 
 7988: =pod
 7989: 
 7990: =item scantron_get_closely_matching_CODEs
 7991: 
 7992:    Cycles through all CODEs and finds the set that has the greatest
 7993:    number of same characters as the provided CODE
 7994: 
 7995:  Arguments:
 7996:    $allcodes - hash ref returned by &get_codes()
 7997:    $CODE     - CODE from the current scanline
 7998: 
 7999:  Returns:
 8000:    2 element list
 8001:     - first elements is number of how closely matching the best fit is 
 8002:       (5 means best set has 5 matching characters)
 8003:     - second element is an arrary ref containing the set of valid CODEs
 8004:       that best fit the passed in CODE
 8005: 
 8006: =cut
 8007: 
 8008: sub scantron_get_closely_matching_CODEs {
 8009:     my ($allcodes,$CODE)=@_;
 8010:     my @CODEs;
 8011:     foreach my $testcode (sort(keys(%{$allcodes}))) {
 8012: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
 8013:     }
 8014: 
 8015:     return ($#CODEs,$CODEs[-1]);
 8016: }
 8017: 
 8018: =pod
 8019: 
 8020: =item get_codes
 8021: 
 8022:    Builds a hash which has keys of all of the valid CODEs from the selected
 8023:    set of remembered CODEs.
 8024: 
 8025:  Arguments:
 8026:   $old_name - name of the set of remembered CODEs
 8027:   $cdom     - domain of the course
 8028:   $cnum     - internal course name
 8029: 
 8030:  Returns:
 8031:   %allcodes - keys are the valid CODEs, values are all 1
 8032: 
 8033: =cut
 8034: 
 8035: sub get_codes {
 8036:     my ($old_name, $cdom, $cnum) = @_;
 8037:     if (!$old_name) {
 8038: 	$old_name=$env{'form.scantron_CODElist'};
 8039:     }
 8040:     if (!$cdom) {
 8041: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
 8042:     }
 8043:     if (!$cnum) {
 8044: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
 8045:     }
 8046:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
 8047: 				    $cdom,$cnum);
 8048:     my %allcodes;
 8049:     if ($result{"type\0$old_name"} eq 'number') {
 8050: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
 8051:     } else {
 8052: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
 8053:     }
 8054:     return %allcodes;
 8055: }
 8056: 
 8057: =pod
 8058: 
 8059: =item scantron_validate_CODE
 8060: 
 8061:    Validates all scanlines in the selected file to not have any
 8062:    invalid or underspecified CODEs and that none of the codes are
 8063:    duplicated if this was requested.
 8064: 
 8065: =cut
 8066: 
 8067: sub scantron_validate_CODE {
 8068:     my ($r,$currentphase) = @_;
 8069:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8070:     if ($scantron_config{'CODElocation'} &&
 8071: 	$scantron_config{'CODEstart'} &&
 8072: 	$scantron_config{'CODElength'}) {
 8073: 	if (!defined($env{'form.scantron_CODElist'})) {
 8074: 	    &FIXME_blow_up()
 8075: 	}
 8076:     } else {
 8077: 	return (0,$currentphase+1);
 8078:     }
 8079:     
 8080:     my %usedCODEs;
 8081: 
 8082:     my %allcodes=&get_codes();
 8083: 
 8084:     my $nav_error;
 8085:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
 8086:     if ($nav_error) {
 8087:         $r->print(&navmap_errormsg());
 8088:         return(1,$currentphase);
 8089:     }
 8090: 
 8091:     my ($scanlines,$scan_data)=&scantron_getfile();
 8092:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8093: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8094: 	if ($line=~/^[\s\cz]*$/) { next; }
 8095: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8096: 						 $scan_data);
 8097: 	my $CODE=$$scan_record{'scantron.CODE'};
 8098: 	my $error=0;
 8099: 	if (!&Apache::lonnet::validCODE($CODE)) {
 8100: 	    &scantron_get_correction($r,$i,$scan_record,
 8101: 				     \%scantron_config,
 8102: 				     $line,'incorrectCODE',\%allcodes);
 8103: 	    return(1,$currentphase);
 8104: 	}
 8105: 	if (%allcodes && !exists($allcodes{$CODE}) 
 8106: 	    && !$$scan_record{'scantron.useCODE'}) {
 8107: 	    &scantron_get_correction($r,$i,$scan_record,
 8108: 				     \%scantron_config,
 8109: 				     $line,'incorrectCODE',\%allcodes);
 8110: 	    return(1,$currentphase);
 8111: 	}
 8112: 	if (exists($usedCODEs{$CODE}) 
 8113: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
 8114: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
 8115: 	    &scantron_get_correction($r,$i,$scan_record,
 8116: 				     \%scantron_config,
 8117: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
 8118: 	    return(1,$currentphase);
 8119: 	}
 8120: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
 8121:     }
 8122:     return (0,$currentphase+1);
 8123: }
 8124: 
 8125: =pod
 8126: 
 8127: =item scantron_validate_doublebubble
 8128: 
 8129:    Validates all scanlines in the selected file to not have any
 8130:    bubble lines with multiple bubbles marked.
 8131: 
 8132: =cut
 8133: 
 8134: sub scantron_validate_doublebubble {
 8135:     my ($r,$currentphase) = @_;
 8136:     #get student info
 8137:     my $classlist=&Apache::loncoursedata::get_classlist();
 8138:     my %idmap=&username_to_idmap($classlist);
 8139:     my (undef,undef,$sequence)=
 8140:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8141: 
 8142:     #get scantron line setup
 8143:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8144:     my ($scanlines,$scan_data)=&scantron_getfile();
 8145: 
 8146:     my $navmap = Apache::lonnavmaps::navmap->new();
 8147:     unless (ref($navmap)) {
 8148:         $r->print(&navmap_errormsg());
 8149:         return(1,$currentphase);
 8150:     }
 8151:     my $map=$navmap->getResourceByUrl($sequence);
 8152:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8153:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8154:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 8155:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8156: 
 8157:     my $nav_error;
 8158:     if (ref($map)) {
 8159:         $randomorder = $map->randomorder();
 8160:         $randompick = $map->randompick();
 8161:         if ($randomorder || $randompick) {
 8162:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8163:             if ($nav_error) {
 8164:                 $r->print(&navmap_errormsg());
 8165:                 return(1,$currentphase);
 8166:             }
 8167:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8168:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 8169:         }
 8170:     } else {
 8171:         $r->print(&navmap_errormsg());
 8172:         return(1,$currentphase);
 8173:     }
 8174: 
 8175:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
 8176:     if ($nav_error) {
 8177:         $r->print(&navmap_errormsg());
 8178:         return(1,$currentphase);
 8179:     }
 8180: 
 8181:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8182: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8183: 	if ($line=~/^[\s\cz]*$/) { next; }
 8184: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8185: 						 $scan_data,undef,\%idmap,$randomorder,
 8186:                                                  $randompick,$sequence,\@master_seq,
 8187:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 8188:                                                  \%orderedforcode,\%respnumlookup,\%startline);
 8189: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 8190: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 8191: 				 'doublebubble',
 8192: 				 $$scan_record{'scantron.doubleerror'},
 8193:                                  $randomorder,$randompick,\%respnumlookup,\%startline);
 8194:     	return (1,$currentphase);
 8195:     }
 8196:     return (0,$currentphase+1);
 8197: }
 8198: 
 8199: 
 8200: sub scantron_get_maxbubble {
 8201:     my ($nav_error,$scantron_config) = @_;
 8202:     if (defined($env{'form.scantron_maxbubble'}) &&
 8203: 	$env{'form.scantron_maxbubble'}) {
 8204: 	&restore_bubble_lines();
 8205: 	return $env{'form.scantron_maxbubble'};
 8206:     }
 8207: 
 8208:     my (undef, undef, $sequence) =
 8209: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 8210: 
 8211:     my $navmap=Apache::lonnavmaps::navmap->new();
 8212:     unless (ref($navmap)) {
 8213:         if (ref($nav_error)) {
 8214:             $$nav_error = 1;
 8215:         }
 8216:         return;
 8217:     }
 8218:     my $map=$navmap->getResourceByUrl($sequence);
 8219:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8220:     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
 8221: 
 8222:     &Apache::lonxml::clear_problem_counter();
 8223: 
 8224:     my $uname       = $env{'user.name'};
 8225:     my $udom        = $env{'user.domain'};
 8226:     my $cid         = $env{'request.course.id'};
 8227:     my $total_lines = 0;
 8228:     %bubble_lines_per_response = ();
 8229:     %first_bubble_line         = ();
 8230:     %subdivided_bubble_lines   = ();
 8231:     %responsetype_per_response = ();
 8232:     %masterseq_id_responsenum  = ();
 8233: 
 8234:     my $response_number = 0;
 8235:     my $bubble_line     = 0;
 8236:     foreach my $resource (@resources) {
 8237:         my $resid = $resource->id();
 8238:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
 8239:                                                           $udom,undef,$bubbles_per_row);
 8240:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 8241: 	    foreach my $part_id (@{$parts}) {
 8242:                 my $lines;
 8243: 
 8244: 	        # TODO - make this a persistent hash not an array.
 8245: 
 8246:                 # optionresponse, matchresponse and rankresponse type items 
 8247:                 # render as separate sub-questions in exam mode.
 8248:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
 8249:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
 8250:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
 8251:                     my ($numbub,$numshown);
 8252:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
 8253:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
 8254:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
 8255:                         }
 8256:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
 8257:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
 8258:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
 8259:                         }
 8260:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
 8261:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
 8262:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
 8263:                         }
 8264:                     }
 8265:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
 8266:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
 8267:                     }
 8268:                     my $bubbles_per_row =
 8269:                         &bubblesheet_bubbles_per_row($scantron_config);
 8270:                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
 8271:                     if (($numbub % $bubbles_per_row) != 0) {
 8272:                         $inner_bubble_lines++;
 8273:                     }
 8274:                     for (my $i=0; $i<$numshown; $i++) {
 8275:                         $subdivided_bubble_lines{$response_number} .= 
 8276:                             $inner_bubble_lines.',';
 8277:                     }
 8278:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
 8279:                     $lines = $numshown * $inner_bubble_lines;
 8280:                 } else {
 8281:                     $lines = $analysis->{"$part_id.bubble_lines"};
 8282:                 }
 8283: 
 8284:                 $first_bubble_line{$response_number} = $bubble_line;
 8285: 	        $bubble_lines_per_response{$response_number} = $lines;
 8286:                 $responsetype_per_response{$response_number} = 
 8287:                     $analysis->{$part_id.'.type'};
 8288:                 $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;
 8289: 	        $response_number++;
 8290: 
 8291: 	        $bubble_line +=  $lines;
 8292: 	        $total_lines +=  $lines;
 8293: 	    }
 8294:         }
 8295:     }
 8296:     &Apache::lonnet::delenv('scantron.');
 8297: 
 8298:     &save_bubble_lines();
 8299:     $env{'form.scantron_maxbubble'} =
 8300: 	$total_lines;
 8301:     return $env{'form.scantron_maxbubble'};
 8302: }
 8303: 
 8304: sub bubblesheet_bubbles_per_row {
 8305:     my ($scantron_config) = @_;
 8306:     my $bubbles_per_row;
 8307:     if (ref($scantron_config) eq 'HASH') {
 8308:         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
 8309:     }
 8310:     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
 8311:         $bubbles_per_row = 10;
 8312:     }
 8313:     return $bubbles_per_row;
 8314: }
 8315: 
 8316: sub scantron_validate_missingbubbles {
 8317:     my ($r,$currentphase) = @_;
 8318:     #get student info
 8319:     my $classlist=&Apache::loncoursedata::get_classlist();
 8320:     my %idmap=&username_to_idmap($classlist);
 8321:     my (undef,undef,$sequence)=
 8322:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8323: 
 8324:     #get scantron line setup
 8325:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8326:     my ($scanlines,$scan_data)=&scantron_getfile();
 8327: 
 8328:     my $navmap = Apache::lonnavmaps::navmap->new();
 8329:     unless (ref($navmap)) {
 8330:         $r->print(&navmap_errormsg());
 8331:         return(1,$currentphase);
 8332:     }
 8333: 
 8334:     my $map=$navmap->getResourceByUrl($sequence);
 8335:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8336:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8337:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 8338:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8339: 
 8340:     my $nav_error;
 8341:     if (ref($map)) {
 8342:         $randomorder = $map->randomorder();
 8343:         $randompick = $map->randompick();
 8344:         if ($randomorder || $randompick) {
 8345:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8346:             if ($nav_error) {
 8347:                 $r->print(&navmap_errormsg());
 8348:                 return(1,$currentphase);
 8349:             }
 8350:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8351:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 8352:         }
 8353:     } else {
 8354:         $r->print(&navmap_errormsg());
 8355:         return(1,$currentphase);
 8356:     }
 8357: 
 8358: 
 8359:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 8360:     if ($nav_error) {
 8361:         $r->print(&navmap_errormsg());
 8362:         return(1,$currentphase);
 8363:     }
 8364: 
 8365:     if (!$max_bubble) { $max_bubble=2**31; }
 8366:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8367: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8368: 	if ($line=~/^[\s\cz]*$/) { next; }
 8369:         my $scan_record =
 8370:             &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
 8371:                                      $randomorder,$randompick,$sequence,\@master_seq,
 8372:                                      \%symb_to_resource,\%grader_partids_by_symb,
 8373:                                      \%orderedforcode,\%respnumlookup,\%startline);
 8374: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 8375: 	my @to_correct;
 8376: 	
 8377: 	# Probably here's where the error is...
 8378: 
 8379: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
 8380:             my $lastbubble;
 8381:             if ($missing =~ /^(\d+)\.(\d+)$/) {
 8382:                 my $question = $1;
 8383:                 my $subquestion = $2;
 8384:                 my ($first,$responsenum);
 8385:                 if ($randomorder || $randompick) {
 8386:                     $responsenum = $respnumlookup{$question-1};
 8387:                     $first = $startline{$question-1};
 8388:                 } else {
 8389:                     $responsenum = $question-1;
 8390:                     $first = $first_bubble_line{$responsenum};
 8391:                 }
 8392:                 if (!defined($first)) { next; }
 8393:                 my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 8394:                 my $subcount = 1;
 8395:                 while ($subcount<$subquestion) {
 8396:                     $first += $subans[$subcount-1];
 8397:                     $subcount ++;
 8398:                 }
 8399:                 my $count = $subans[$subquestion-1];
 8400:                 $lastbubble = $first + $count;
 8401:             } else {
 8402:                 my ($first,$responsenum);
 8403:                 if ($randomorder || $randompick) {
 8404:                     $responsenum = $respnumlookup{$missing-1};
 8405:                     $first = $startline{$missing-1};
 8406:                 } else {
 8407:                     $responsenum = $missing-1;
 8408:                     $first = $first_bubble_line{$responsenum};
 8409:                 }
 8410:                 if (!defined($first)) { next; }
 8411:                 $lastbubble = $first + $bubble_lines_per_response{$responsenum};
 8412:             }
 8413:             if ($lastbubble > $max_bubble) { next; }
 8414: 	    push(@to_correct,$missing);
 8415: 	}
 8416: 	if (@to_correct) {
 8417: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 8418: 				     $line,'missingbubble',\@to_correct,
 8419:                                      $randomorder,$randompick,\%respnumlookup,
 8420:                                      \%startline);
 8421: 	    return (1,$currentphase);
 8422: 	}
 8423: 
 8424:     }
 8425:     return (0,$currentphase+1);
 8426: }
 8427: 
 8428: sub hand_bubble_option {
 8429:     my (undef, undef, $sequence) =
 8430:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8431:     return if ($sequence eq '');
 8432:     my $navmap = Apache::lonnavmaps::navmap->new();
 8433:     unless (ref($navmap)) {
 8434:         return;
 8435:     }
 8436:     my $needs_hand_bubbles;
 8437:     my $map=$navmap->getResourceByUrl($sequence);
 8438:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8439:     foreach my $res (@resources) {
 8440:         if (ref($res)) {
 8441:             if ($res->is_problem()) {
 8442:                 my $partlist = $res->parts();
 8443:                 foreach my $part (@{ $partlist }) {
 8444:                     my @types = $res->responseType($part);
 8445:                     if (grep(/^(chem|essay|image|formula|math|string|functionplot)$/,@types)) {
 8446:                         $needs_hand_bubbles = 1;
 8447:                         last;
 8448:                     }
 8449:                 }
 8450:             }
 8451:         }
 8452:     }
 8453:     if ($needs_hand_bubbles) {
 8454:         my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8455:         my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8456:         return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
 8457:                &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 />').
 8458:                '<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;'.
 8459:                '<label><input type="radio" name="scantron_lastbubblepoints" value="0" />'.&mt('0 points').'</label></p>';
 8460:     }
 8461:     return;
 8462: }
 8463: 
 8464: sub scantron_process_students {
 8465:     my ($r) = @_;
 8466: 
 8467:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
 8468:     my ($symb)=&get_symb($r);
 8469:     if (!$symb) {
 8470: 	return '';
 8471:     }
 8472:     my $default_form_data=&defaultFormData($symb);
 8473: 
 8474:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8475:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8476:     my ($scanlines,$scan_data)=&scantron_getfile();
 8477:     my $classlist=&Apache::loncoursedata::get_classlist();
 8478:     my %idmap=&username_to_idmap($classlist);
 8479:     my $navmap=Apache::lonnavmaps::navmap->new();
 8480:     unless (ref($navmap)) {
 8481:         $r->print(&navmap_errormsg());
 8482:         return '';
 8483:     }
 8484:     my $map=$navmap->getResourceByUrl($sequence);
 8485:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8486:         %grader_randomlists_by_symb);
 8487:     if (ref($map)) {
 8488:         $randomorder = $map->randomorder();
 8489:         $randompick = $map->randompick();
 8490:     } else {
 8491:         $r->print(&navmap_errormsg());
 8492:         return '';
 8493:     }
 8494:     my $nav_error;
 8495:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8496:     if ($randomorder || $randompick) {
 8497:         $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8498:         if ($nav_error) {
 8499:             $r->print(&navmap_errormsg());
 8500:             return '';
 8501:         }
 8502:     }
 8503:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8504:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 8505: 
 8506:     my ($uname,$udom);
 8507:     my $result= <<SCANTRONFORM;
 8508: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 8509:   <input type="hidden" name="command" value="scantron_configphase" />
 8510:   $default_form_data
 8511: SCANTRONFORM
 8512:     $r->print($result);
 8513: 
 8514:     my @delayqueue;
 8515:     my (%completedstudents,%scandata);
 8516:     
 8517:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
 8518:     my $count=&get_todo_count($scanlines,$scan_data);
 8519:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 8520:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 8521: 					  'Processing first student');
 8522:     $r->print('<br />');
 8523:     my $start=&Time::HiRes::time();
 8524:     my $i=-1;
 8525:     my $started;
 8526: 
 8527:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 8528:     if ($nav_error) {
 8529:         $r->print(&navmap_errormsg());
 8530:         return '';
 8531:     }
 8532: 
 8533:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
 8534:     # the user and return.
 8535: 
 8536:     if ($ssi_error) {
 8537: 	$r->print("</form>");
 8538: 	&ssi_print_error($r);
 8539: 	$r->print(&show_grading_menu_form($symb));
 8540:         &Apache::lonnet::remove_lock($lock);
 8541: 	return '';		# Dunno why the other returns return '' rather than just returning.
 8542:     }
 8543: 
 8544:     my %lettdig = &letter_to_digits();
 8545:     my $numletts = scalar(keys(%lettdig));
 8546:     my %orderedforcode;
 8547: 
 8548:     while ($i<$scanlines->{'count'}) {
 8549:  	($uname,$udom)=('','');
 8550:  	$i++;
 8551:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8552:  	if ($line=~/^[\s\cz]*$/) { next; }
 8553: 	if ($started) {
 8554: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 8555: 						     'last student');
 8556: 	}
 8557: 	$started=1;
 8558:         my %respnumlookup = ();
 8559:         my %startline = ();
 8560:         my $total;
 8561:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8562:  						 $scan_data,undef,\%idmap,$randomorder,
 8563:                                                  $randompick,$sequence,\@master_seq,
 8564:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 8565:                                                  \%orderedforcode,\%respnumlookup,\%startline,
 8566:                                                  \$total);
 8567:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
 8568:  					      \%idmap,$i)) {
 8569:   	    &scantron_add_delay(\@delayqueue,$line,
 8570:  				'Unable to find a student that matches',1);
 8571:  	    next;
 8572:   	}
 8573:  	if (exists $completedstudents{$uname}) {
 8574:  	    &scantron_add_delay(\@delayqueue,$line,
 8575:  				'Student '.$uname.' has multiple sheets',2);
 8576:  	    next;
 8577:  	}
 8578:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 8579:         my $user = $uname.':'.$usec;
 8580:   	($uname,$udom)=split(/:/,$uname);
 8581: 
 8582:         my $scancode;
 8583:         if ((exists($scan_record->{'scantron.CODE'})) &&
 8584:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 8585:             $scancode = $scan_record->{'scantron.CODE'};
 8586:         } else {
 8587:             $scancode = '';
 8588:         }
 8589: 
 8590:         my @mapresources = @resources;
 8591:         if ($randomorder || $randompick) {
 8592:             @mapresources =
 8593:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 8594:                              \%orderedforcode);
 8595:         }
 8596:         my (%partids_by_symb,$res_error);
 8597:         foreach my $resource (@mapresources) {
 8598:             my $ressymb;
 8599:             if (ref($resource)) {
 8600:                 $ressymb = $resource->symb();
 8601:             } else {
 8602:                 $res_error = 1;
 8603:                 last;
 8604:             }
 8605:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8606:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8607:                 my ($analysis,$parts) =
 8608:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 8609:                                               $uname,$udom,undef,$bubbles_per_row);
 8610:                 $partids_by_symb{$ressymb} = $parts;
 8611:             } else {
 8612:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
 8613:             }
 8614:         }
 8615: 
 8616:         if ($res_error) {
 8617:             &scantron_add_delay(\@delayqueue,$line,
 8618:                                 'An error occurred while grading student '.$uname,2);
 8619:             next;
 8620:         }
 8621: 
 8622: 	&Apache::lonxml::clear_problem_counter();
 8623:   	&Apache::lonnet::appenv($scan_record);
 8624: 
 8625: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
 8626: 	    &scantron_putfile($scanlines,$scan_data);
 8627: 	}
 8628: 	
 8629:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8630:                                    \@mapresources,\%partids_by_symb,
 8631:                                    $bubbles_per_row,$randomorder,$randompick,
 8632:                                    \%respnumlookup,\%startline) 
 8633:             eq 'ssi_error') {
 8634:             $ssi_error = 0; # So end of handler error message does not trigger.
 8635:             $r->print("</form>");
 8636:             &ssi_print_error($r);
 8637:             $r->print(&show_grading_menu_form($symb));
 8638:             &Apache::lonnet::remove_lock($lock);
 8639:             return '';      # Why return ''?  Beats me.
 8640:         }
 8641: 
 8642:         if (($scancode) && ($randomorder || $randompick)) {
 8643:             my $parmresult =
 8644:                 &Apache::lonparmset::storeparm_by_symb($symb,
 8645:                                                        '0_examcode',2,$scancode,
 8646:                                                        'string_examcode',$uname,
 8647:                                                        $udom);
 8648:         }
 8649: 	$completedstudents{$uname}={'line'=>$line};
 8650:         if ($env{'form.verifyrecord'}) {
 8651:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8652:             if ($randompick) {
 8653:                 if ($total) {
 8654:                     $lastpos = $total*$scantron_config{'Qlength'};
 8655:                 }
 8656:             }
 8657: 
 8658:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8659:             chomp($studentdata);
 8660:             $studentdata =~ s/\r$//;
 8661:             my $studentrecord = '';
 8662:             my $counter = -1;
 8663:             foreach my $resource (@mapresources) {
 8664:                 my $ressymb = $resource->symb();
 8665:                 ($counter,my $recording) =
 8666:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8667:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
 8668:                                              \%scantron_config,\%lettdig,$numletts,$randomorder,
 8669:                                              $randompick,\%respnumlookup,\%startline);
 8670:                 $studentrecord .= $recording;
 8671:             }
 8672:             if ($studentrecord ne $studentdata) {
 8673:                 &Apache::lonxml::clear_problem_counter();
 8674:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8675:                                            \@mapresources,\%partids_by_symb,
 8676:                                            $bubbles_per_row,$randomorder,$randompick,
 8677:                                            \%respnumlookup,\%startline)
 8678:                     eq 'ssi_error') {
 8679:                     $ssi_error = 0; # So end of handler error message does not trigger.
 8680:                     $r->print("</form>");
 8681:                     &ssi_print_error($r);
 8682:                     $r->print(&show_grading_menu_form($symb));
 8683:                     &Apache::lonnet::remove_lock($lock);
 8684:                     delete($completedstudents{$uname});
 8685:                     return '';
 8686:                 }
 8687:                 $counter = -1;
 8688:                 $studentrecord = '';
 8689:                 foreach my $resource (@mapresources) {
 8690:                     my $ressymb = $resource->symb();
 8691:                     ($counter,my $recording) =
 8692:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8693:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
 8694:                                                  \%scantron_config,\%lettdig,$numletts,
 8695:                                                  $randomorder,$randompick,\%respnumlookup,
 8696:                                                  \%startline);
 8697:                     $studentrecord .= $recording;
 8698:                 }
 8699:                 if ($studentrecord ne $studentdata) {
 8700:                     $r->print('<p><span class="LC_warning">');
 8701:                     if ($scancode eq '') {
 8702:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
 8703:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
 8704:                     } else {
 8705:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
 8706:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
 8707:                     }
 8708:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
 8709:                               &Apache::loncommon::start_data_table_header_row()."\n".
 8710:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
 8711:                               &Apache::loncommon::end_data_table_header_row()."\n".
 8712:                               &Apache::loncommon::start_data_table_row().
 8713:                               '<td>'.&mt('Bubblesheet').'</td>'.
 8714:                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentdata.'</tt></span></td>'.
 8715:                               &Apache::loncommon::end_data_table_row().
 8716:                               &Apache::loncommon::start_data_table_row().
 8717:                               '<td>'.&mt('Stored submissions').'</td>'.
 8718:                               '<td><span class="LC_nobreak" style="white-space: pre;"><tt>'.$studentrecord.'</tt></span></td>'."\n".
 8719:                               &Apache::loncommon::end_data_table_row().
 8720:                               &Apache::loncommon::end_data_table().'</p>');
 8721:                 } else {
 8722:                     $r->print('<br /><span class="LC_warning">'.
 8723:                              &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 />'.
 8724:                              &mt("As a consequence, this user's submission history records two tries.").
 8725:                                  '</span><br />');
 8726:                 }
 8727:             }
 8728:         }
 8729:         if (&Apache::loncommon::connection_aborted($r)) { last; }
 8730:     } continue {
 8731: 	&Apache::lonxml::clear_problem_counter();
 8732: 	&Apache::lonnet::delenv('scantron.');
 8733:     }
 8734:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8735:     &Apache::lonnet::remove_lock($lock);
 8736: #    my $lasttime = &Time::HiRes::time()-$start;
 8737: #    $r->print("<p>took $lasttime</p>");
 8738: 
 8739:     $r->print("</form>");
 8740:     $r->print(&show_grading_menu_form($symb));
 8741:     return '';
 8742: }
 8743: 
 8744: sub graders_resources_pass {
 8745:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
 8746:         $bubbles_per_row) = @_;
 8747:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
 8748:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
 8749:         foreach my $resource (@{$resources}) {
 8750:             my $ressymb = $resource->symb();
 8751:             my ($analysis,$parts) =
 8752:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
 8753:                                           $env{'user.name'},$env{'user.domain'},
 8754:                                           1,$bubbles_per_row);
 8755:             $grader_partids_by_symb->{$ressymb} = $parts;
 8756:             if (ref($analysis) eq 'HASH') {
 8757:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 8758:                     $grader_randomlists_by_symb->{$ressymb} =
 8759:                         $analysis->{'parts_withrandomlist'};
 8760:                 }
 8761:             }
 8762:         }
 8763:     }
 8764:     return;
 8765: }
 8766: 
 8767: =pod
 8768: 
 8769: =item users_order
 8770: 
 8771:   Returns array of resources in current map, ordered based on either CODE,
 8772:   if this is a CODEd exam, or based on student's identity if this is a
 8773:   "NAMEd" exam.
 8774: 
 8775:   Should be used when randomorder and/or randompick applied when the 
 8776:   corresponding exam was printed, prior to students completing bubblesheets 
 8777:   for the version of the exam the student received.
 8778: 
 8779: =cut
 8780: 
 8781: sub users_order  {
 8782:     my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
 8783:     my @mapresources;
 8784:     unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
 8785:         return @mapresources;
 8786:     }
 8787:     if ($scancode) {
 8788:         if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
 8789:             @mapresources = @{$orderedforcode->{$scancode}};
 8790:         } else {
 8791:             $env{'form.CODE'} = $scancode;
 8792:             my $actual_seq =
 8793:                 &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8794:                                                                $master_seq,
 8795:                                                                $user,$scancode,1);
 8796:             if (ref($actual_seq) eq 'ARRAY') {
 8797:                 @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
 8798:                 if (ref($orderedforcode) eq 'HASH') {
 8799:                     if (@mapresources > 0) {
 8800:                         $orderedforcode->{$scancode} = \@mapresources;
 8801:                     }
 8802:                 }
 8803:             }
 8804:             delete($env{'form.CODE'});
 8805:         }
 8806:     } else {
 8807:         my $actual_seq =
 8808:             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8809:                                                            $master_seq,
 8810:                                                            $user,undef,1);
 8811:         if (ref($actual_seq) eq 'ARRAY') {
 8812:             @mapresources =
 8813:                 map { $symb_to_resource->{$_}; } @{$actual_seq};
 8814:         }
 8815:     }
 8816:     return @mapresources;
 8817: }
 8818: 
 8819: sub grade_student_bubbles {
 8820:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
 8821:         $randomorder,$randompick,$respnumlookup,$startline) = @_;
 8822:     my $uselookup = 0;
 8823:     if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
 8824:         (ref($startline) eq 'HASH')) {
 8825:         $uselookup = 1;
 8826:     }
 8827: 
 8828:     if (ref($resources) eq 'ARRAY') {
 8829:         my $count = 0;
 8830:         foreach my $resource (@{$resources}) {
 8831:             my $ressymb = $resource->symb();
 8832:             my %form = ('submitted'      => 'scantron',
 8833:                         'grade_target'   => 'grade',
 8834:                         'grade_username' => $uname,
 8835:                         'grade_domain'   => $udom,
 8836:                         'grade_courseid' => $env{'request.course.id'},
 8837:                         'grade_symb'     => $ressymb,
 8838:                         'CODE'           => $scancode
 8839:                        );
 8840:             if ($bubbles_per_row ne '') {
 8841:                 $form{'bubbles_per_row'} = $bubbles_per_row;
 8842:             }
 8843:             if ($env{'form.scantron_lastbubblepoints'} ne '') {
 8844:                 $form{'scantron_lastbubblepoints'} = $env{'form.scantron_lastbubblepoints'};
 8845:             }
 8846:             if (ref($parts) eq 'HASH') {
 8847:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
 8848:                     foreach my $part (@{$parts->{$ressymb}}) {
 8849:                         if ($uselookup) {
 8850:                             $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
 8851:                         } else {
 8852:                             $form{'scantron_questnum_start.'.$part} =
 8853:                                 1+$env{'form.scantron.first_bubble_line.'.$count};
 8854:                         }
 8855:                         $count++;
 8856:                     }
 8857:                 }
 8858:             }
 8859:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
 8860:             return 'ssi_error' if ($ssi_error);
 8861:             last if (&Apache::loncommon::connection_aborted($r));
 8862:         }
 8863:     }
 8864:     return;
 8865: }
 8866: 
 8867: sub scantron_upload_scantron_data {
 8868:     my ($r)=@_;
 8869:     my $dom = $env{'request.role.domain'};
 8870:     my $domdesc = &Apache::lonnet::domain($dom,'description');
 8871:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
 8872:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
 8873: 							  'domainid',
 8874: 							  'coursename',$dom);
 8875:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
 8876:                        ('&nbsp'x2).&mt('(shows course personnel)');
 8877:     my ($symb) = &get_symb($r,1);
 8878:     my $default_form_data=&defaultFormData($symb);
 8879:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
 8880:     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.");
 8881:     $r->print('
 8882: <script type="text/javascript" language="javascript">
 8883:     function checkUpload(formname) {
 8884: 	if (formname.upfile.value == "") {
 8885: 	    alert("'.$nofile_alert.'");
 8886: 	    return false;
 8887: 	}
 8888:         if (formname.courseid.value == "") {
 8889:             alert("'.$nocourseid_alert.'");
 8890:             return false;
 8891:         }
 8892: 	formname.submit();
 8893:     }
 8894: 
 8895:     function ToSyllabus() {
 8896:         var cdom = '."'$dom'".';
 8897:         var cnum = document.rules.courseid.value;
 8898:         if (cdom == "" || cdom == null) {
 8899:             return;
 8900:         }
 8901:         if (cnum == "" || cnum == null) {
 8902:            return;
 8903:         }
 8904:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
 8905:                             "height=350,width=350,scrollbars=yes,menubar=no");
 8906:         return;
 8907:     }
 8908: 
 8909: </script>
 8910: 
 8911: <h3>'.&mt('Send bubblesheet data to a course').'</h3>
 8912: 
 8913: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 8914: '.$default_form_data.
 8915:   &Apache::lonhtmlcommon::start_pick_box().
 8916:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
 8917:   '<input name="courseid" type="text" size="30" />'.$select_link.
 8918:   &Apache::lonhtmlcommon::row_closure().
 8919:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
 8920:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
 8921:   &Apache::lonhtmlcommon::row_closure().
 8922:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
 8923:   '<input name="domainid" type="hidden" />'.$domdesc.
 8924:   &Apache::lonhtmlcommon::row_closure().
 8925:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
 8926:   '<input type="file" name="upfile" size="50" />'.
 8927:   &Apache::lonhtmlcommon::row_closure(1).
 8928:   &Apache::lonhtmlcommon::end_pick_box().'<br />
 8929: 
 8930: <input name="command" value="scantronupload_save" type="hidden" />
 8931: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 8932: </form>
 8933: ');
 8934:     return '';
 8935: }
 8936: 
 8937: 
 8938: sub scantron_upload_scantron_data_save {
 8939:     my($r)=@_;
 8940:     my ($symb)=&get_symb($r,1);
 8941:     my $doanotherupload=
 8942: 	'<br /><form action="/adm/grades" method="post">'."\n".
 8943: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
 8944: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
 8945: 	'</form>'."\n";
 8946:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 8947: 	!&Apache::lonnet::allowed('usc',
 8948: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
 8949: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
 8950: 	if ($symb) {
 8951: 	    $r->print(&show_grading_menu_form($symb));
 8952: 	} else {
 8953: 	    $r->print($doanotherupload);
 8954: 	}
 8955: 	return '';
 8956:     }
 8957:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
 8958:     my $uploadedfile;
 8959:     $r->print('<p>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</p>');
 8960:     if (length($env{'form.upfile'}) < 2) {
 8961:         $r->print(
 8962:             &Apache::lonhtmlcommon::confirm_success(
 8963:                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
 8964:                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1));
 8965:     } else {
 8966:         my $result = 
 8967:             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
 8968:                                             $env{'form.courseid'},$env{'form.domainid'});
 8969: 	if ($result =~ m{^/uploaded/}) {
 8970:             $r->print(
 8971:                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload successful')).'<br />'.
 8972:                 &mt('Uploaded [_1] bytes of data into location: [_2]',
 8973:                         (length($env{'form.upfile'})-1),
 8974:                         '<span class="LC_filename">'.$result.'</span>'));
 8975:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
 8976:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
 8977:                                                        $env{'form.courseid'},$uploadedfile));
 8978: 	} else {
 8979:             $r->print(
 8980:                 &Apache::lonhtmlcommon::confirm_success(&mt('Upload failed'),1).'<br />'.
 8981:                     &mt('An error ([_1]) occurred when attempting to upload the file: [_2]',
 8982:                           $result,
 8983: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8984: 	}
 8985:     }
 8986:     if ($symb) {
 8987: 	$r->print(&scantron_selectphase($r,$uploadedfile));
 8988:     } else {
 8989: 	$r->print($doanotherupload);
 8990:     }
 8991:     return '';
 8992: }
 8993: 
 8994: sub validate_uploaded_scantron_file {
 8995:     my ($cdom,$cname,$fname) = @_;
 8996:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
 8997:     my @lines;
 8998:     if ($scanlines ne '-1') {
 8999:         @lines=split("\n",$scanlines,-1);
 9000:     }
 9001:     my $output;
 9002:     if (@lines) {
 9003:         my (%counts,$max_match_format);
 9004:         my ($found_match_count,$max_match_count,$max_match_pct) = (0,0,0);
 9005:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
 9006:         my %idmap = &username_to_idmap($classlist);
 9007:         foreach my $key (keys(%idmap)) {
 9008:             my $lckey = lc($key);
 9009:             $idmap{$lckey} = $idmap{$key};
 9010:         }
 9011:         my %unique_formats;
 9012:         my @formatlines = &get_scantronformat_file();
 9013:         foreach my $line (@formatlines) {
 9014:             chomp($line);
 9015:             my @config = split(/:/,$line);
 9016:             my $idstart = $config[5];
 9017:             my $idlength = $config[6];
 9018:             if (($idstart ne '') && ($idlength > 0)) {
 9019:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
 9020:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
 9021:                 } else {
 9022:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
 9023:                 }
 9024:             }
 9025:         }
 9026:         foreach my $key (keys(%unique_formats)) {
 9027:             my ($idstart,$idlength) = split(':',$key);
 9028:             %{$counts{$key}} = (
 9029:                                'found'   => 0,
 9030:                                'total'   => 0,
 9031:                               );
 9032:             foreach my $line (@lines) {
 9033:                 next if ($line =~ /^#/);
 9034:                 next if ($line =~ /^[\s\cz]*$/);
 9035:                 my $id = substr($line,$idstart-1,$idlength);
 9036:                 $id = lc($id);
 9037:                 if (exists($idmap{$id})) {
 9038:                     $counts{$key}{'found'} ++;
 9039:                 }
 9040:                 $counts{$key}{'total'} ++;
 9041:             }
 9042:             if ($counts{$key}{'total'}) {
 9043:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
 9044:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
 9045:                     $max_match_pct = $percent_match;
 9046:                     $max_match_format = $key;
 9047:                     $found_match_count = $counts{$key}{'found'};
 9048:                     $max_match_count = $counts{$key}{'total'};
 9049:                 }
 9050:             }
 9051:         }
 9052:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
 9053:             my $format_descs;
 9054:             my $numwithformat = @{$unique_formats{$max_match_format}};
 9055:             for (my $i=0; $i<$numwithformat; $i++) {
 9056:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
 9057:                 if ($i<$numwithformat-2) {
 9058:                     $format_descs .= '"<i>'.$desc.'</i>", ';
 9059:                 } elsif ($i==$numwithformat-2) {
 9060:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
 9061:                 } elsif ($i==$numwithformat-1) {
 9062:                     $format_descs .= '"<i>'.$desc.'</i>"';
 9063:                 }
 9064:             }
 9065:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
 9066:             $output .= '<br />';
 9067:             if ($found_match_count == $max_match_count) {
 9068:                 # 100% matching entries
 9069:                 $output .= &Apache::lonhtmlcommon::confirm_success(
 9070:                      &mt('Comparison of student IDs: [_1] matching ([quant,_2,entry,entries])',
 9071:                             '<b>'.$showpct.'</b>',$found_match_count)).'<br />'.
 9072:                 &mt('Comparison of student IDs in the uploaded file with'.
 9073:                     ' the course roster found matches for [_1] of the [_2] entries'.
 9074:                     ' in the file (for the format defined for [_3]).',
 9075:                         '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs);
 9076:             } else {
 9077:                 # Not all entries matching? -> Show warning and additional info
 9078:                 $output .=
 9079:                     &Apache::lonhtmlcommon::confirm_success(
 9080:                         &mt('Comparison of student IDs: [_1] matching ([_2]/[quant,_3,entry,entries])',
 9081:                                 '<b>'.$showpct.'</b>',$found_match_count,$max_match_count).'<br />'.
 9082:                         &mt('Not all entries could be matched!'),1).'<br />'.
 9083:                     &mt('Comparison of student IDs in the uploaded file with'.
 9084:                         ' the course roster found matches for [_1] of the [_2] entries'.
 9085:                         ' in the file (for the format defined for [_3]).',
 9086:                             '<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
 9087:                     '<p class="LC_info">'.
 9088:                     &mt('A low percentage of matches results from one of the following:').
 9089:                     '</p><ul>'.
 9090:                     '<li>'.&mt('The file was uploaded to the wrong course.').'</li>'.
 9091:                     '<li>'.&mt('The data is not in the format expected for the domain: [_1]',
 9092:                                '<i>'.$cdom.'</i>').'</li>'.
 9093:                     '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
 9094:                     '<li>'.&mt('The course roster is not up to date.').'</li>'.
 9095:                     '</ul>';
 9096:             }
 9097:         }
 9098:     } else {
 9099:         $output = '<p class="LC_warning">'.&mt('Uploaded file contained no data').'</p>';
 9100:     }
 9101:     return $output;
 9102: }
 9103: 
 9104: sub valid_file {
 9105:     my ($requested_file)=@_;
 9106:     foreach my $filename (sort(&scantron_filenames())) {
 9107: 	if ($requested_file eq $filename) { return 1; }
 9108:     }
 9109:     return 0;
 9110: }
 9111: 
 9112: sub scantron_download_scantron_data {
 9113:     my ($r)=@_;
 9114:     my ($symb) = &get_symb($r,1);
 9115:     my $default_form_data=&defaultFormData($symb);
 9116:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 9117:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 9118:     my $file=$env{'form.scantron_selectfile'};
 9119:     if (! &valid_file($file)) {
 9120: 	$r->print('
 9121: 	<p>
 9122: 	    '.&mt('The requested filename was invalid.').'
 9123:         </p>
 9124: ');
 9125: 	$r->print(&show_grading_menu_form($symb));
 9126: 	return;
 9127:     }
 9128:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
 9129:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
 9130:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
 9131:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
 9132:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
 9133:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
 9134:     $r->print('
 9135:     <p>
 9136: 	'.&mt('[_1]Original[_2] file as uploaded by bubblesheet scanning office.',
 9137: 	      '<a href="'.$orig.'">','</a>').'
 9138:     </p>
 9139:     <p>
 9140: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
 9141: 	      '<a href="'.$corrected.'">','</a>').'
 9142:     </p>
 9143:     <p>
 9144: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
 9145: 	      '<a href="'.$skipped.'">','</a>').'
 9146:     </p>
 9147: ');
 9148:     $r->print(&show_grading_menu_form($symb));
 9149:     return '';
 9150: }
 9151: 
 9152: sub checkscantron_results {
 9153:     my ($r) = @_;
 9154:     my ($symb)=&get_symb($r);
 9155:     if (!$symb) {return '';}
 9156:     my $grading_menu_button=&show_grading_menu_form($symb);
 9157:     my $cid = $env{'request.course.id'};
 9158:     my %lettdig = &letter_to_digits();
 9159:     my $numletts = scalar(keys(%lettdig));
 9160:     my $cnum = $env{'course.'.$cid.'.num'};
 9161:     my $cdom = $env{'course.'.$cid.'.domain'};
 9162:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
 9163:     my %record;
 9164:     my %scantron_config =
 9165:         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
 9166:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 9167:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
 9168:     my $classlist=&Apache::loncoursedata::get_classlist();
 9169:     my %idmap=&Apache::grades::username_to_idmap($classlist);
 9170:     my $navmap=Apache::lonnavmaps::navmap->new();
 9171:     unless (ref($navmap)) {
 9172:         $r->print(&navmap_errormsg());
 9173:         return '';
 9174:     }
 9175:     my $map=$navmap->getResourceByUrl($sequence);
 9176:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 9177:         %grader_randomlists_by_symb,%orderedforcode);
 9178:     if (ref($map)) {
 9179:         $randomorder=$map->randomorder();
 9180:         $randompick=$map->randompick();
 9181:     }
 9182:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 9183:     my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 9184:     if ($nav_error) {
 9185:         $r->print(&navmap_errormsg());
 9186:         return '';
 9187:     }
 9188:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 9189:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 9190:     my ($uname,$udom);
 9191:     my (%scandata,%lastname,%bylast);
 9192:     $r->print('
 9193: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
 9194: 
 9195:     my @delayqueue;
 9196:     my %completedstudents;
 9197: 
 9198:     my $count=&get_todo_count($scanlines,$scan_data);
 9199:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 9200:     my ($username,$domain,$started);
 9201:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 9202:     if ($nav_error) {
 9203:         $r->print(&navmap_errormsg());
 9204:         return '';
 9205:     }
 9206: 
 9207:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 9208:                                           'Processing first student');
 9209:     my $start=&Time::HiRes::time();
 9210:     my $i=-1;
 9211: 
 9212:     while ($i<$scanlines->{'count'}) {
 9213:         ($username,$domain,$uname)=('','','');
 9214:         $i++;
 9215:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
 9216:         if ($line=~/^[\s\cz]*$/) { next; }
 9217:         if ($started) {
 9218:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 9219:                                                      'last student');
 9220:         }
 9221:         $started=1;
 9222:         my $scan_record=
 9223:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
 9224:                                                      $scan_data);
 9225:         unless ($uname=&scantron_find_student($scan_record,$scan_data,
 9226:                                               \%idmap,$i)) {
 9227:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 9228:                                 'Unable to find a student that matches',1);
 9229:             next;
 9230:         }
 9231:         if (exists $completedstudents{$uname}) {
 9232:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 9233:                                 'Student '.$uname.' has multiple sheets',2);
 9234:             next;
 9235:         }
 9236:         my $pid = $scan_record->{'scantron.ID'};
 9237:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
 9238:         push(@{$bylast{$lastname{$pid}}},$pid);
 9239:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 9240:         my $user = $uname.':'.$usec;
 9241:         ($username,$domain)=split(/:/,$uname);
 9242: 
 9243:         my $scancode;
 9244:         if ((exists($scan_record->{'scantron.CODE'})) &&
 9245:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 9246:             $scancode = $scan_record->{'scantron.CODE'};
 9247:         } else {
 9248:             $scancode = '';
 9249:         }
 9250: 
 9251:         my @mapresources = @resources;
 9252:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 9253:         my %respnumlookup=();
 9254:         my %startline=();
 9255:         if ($randomorder || $randompick) {
 9256:             @mapresources =
 9257:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 9258:                              \%orderedforcode);
 9259:             my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
 9260:                                              $scan_record,\@master_seq,\%symb_to_resource,
 9261:                                              \%grader_partids_by_symb,\%orderedforcode,
 9262:                                              \%respnumlookup,\%startline);
 9263:             if ($randompick && $total) {
 9264:                 $lastpos = $total*$scantron_config{'Qlength'};
 9265:             }
 9266:         }
 9267:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 9268:         chomp($scandata{$pid});
 9269:         $scandata{$pid} =~ s/\r$//;
 9270: 
 9271:         my $counter = -1;
 9272:         foreach my $resource (@mapresources) {
 9273:             my $parts;
 9274:             my $ressymb = $resource->symb();
 9275:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 9276:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 9277:                 (my $analysis,$parts) =
 9278:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 9279:                                               $username,$domain,undef,
 9280:                                               $bubbles_per_row);
 9281:             } else {
 9282:                 $parts = $grader_partids_by_symb{$ressymb};
 9283:             }
 9284:             ($counter,my $recording) =
 9285:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
 9286:                                          $scandata{$pid},$parts,
 9287:                                          \%scantron_config,\%lettdig,$numletts,
 9288:                                          $randomorder,$randompick,
 9289:                                          \%respnumlookup,\%startline);
 9290:             $record{$pid} .= $recording;
 9291:         }
 9292:     }
 9293:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 9294:     $r->print('<br />');
 9295:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
 9296:     $passed = 0;
 9297:     $failed = 0;
 9298:     $numstudents = 0;
 9299:     foreach my $last (sort(keys(%bylast))) {
 9300:         if (ref($bylast{$last}) eq 'ARRAY') {
 9301:             foreach my $pid (sort(@{$bylast{$last}})) {
 9302:                 my $showscandata = $scandata{$pid};
 9303:                 my $showrecord = $record{$pid};
 9304:                 $showscandata =~ s/\s/&nbsp;/g;
 9305:                 $showrecord =~ s/\s/&nbsp;/g;
 9306:                 if ($scandata{$pid} eq $record{$pid}) {
 9307:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
 9308:                     $okstudents .= '<tr class="'.$css_class.'">'.
 9309: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 9310: '</tr>'."\n".
 9311: '<tr class="'.$css_class.'">'."\n".
 9312: '<td>'.&mt('Submissions').'</td><td>'.$showrecord.'</td></tr>'."\n";
 9313:                     $passed ++;
 9314:                 } else {
 9315:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
 9316:                     $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".
 9317: '</tr>'."\n".
 9318: '<tr class="'.$css_class.'">'."\n".
 9319: '<td>'.&mt('Submissions').'</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 9320: '</tr>'."\n";
 9321:                     $failed ++;
 9322:                 }
 9323:                 $numstudents ++;
 9324:             }
 9325:         }
 9326:     }
 9327:     $r->print('<p>'.
 9328:               &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).',
 9329:                   '<b>',
 9330:                   $numstudents,
 9331:                   '</b>',
 9332:                   $env{'form.scantron_maxbubble'}).
 9333:               '</p>'
 9334:     );
 9335:     $r->print('<p>'
 9336:              .&mt('Exact matches for [_1][quant,_2,student][_3].','<b>',$passed,'</b>')
 9337:              .'<br />'
 9338:              .&mt('Discrepancies detected for [_1][quant,_2,student][_3].','<b>',$failed,'</b>')
 9339:              .'</p>');
 9340:     if ($passed) {
 9341:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
 9342:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9343:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9344:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9345:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9346:                  $okstudents."\n".
 9347:                  &Apache::loncommon::end_data_table().'<br />');
 9348:     }
 9349:     if ($failed) {
 9350:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
 9351:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9352:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9353:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9354:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9355:                  $badstudents."\n".
 9356:                  &Apache::loncommon::end_data_table()).'<br />'.
 9357:                  &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.');  
 9358:     }
 9359:     $r->print('</form><br />'.$grading_menu_button);
 9360:     return;
 9361: }
 9362: 
 9363: sub verify_scantron_grading {
 9364:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
 9365:         $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
 9366:         $respnumlookup,$startline) = @_;
 9367:     my ($record,%expected,%startpos);
 9368:     return ($counter,$record) if (!ref($resource));
 9369:     return ($counter,$record) if (!$resource->is_problem());
 9370:     my $symb = $resource->symb();
 9371:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
 9372:     foreach my $part_id (@{$partids}) {
 9373:         $counter ++;
 9374:         $expected{$part_id} = 0;
 9375:         my $respnum = $counter;
 9376:         if ($randomorder || $randompick) {
 9377:             $respnum = $respnumlookup->{$counter};
 9378:             $startpos{$part_id} = $startline->{$counter} + 1;
 9379:         } else {
 9380:             $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
 9381:         }
 9382:         if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
 9383:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
 9384:             foreach my $item (@sub_lines) {
 9385:                 $expected{$part_id} += $item;
 9386:             }
 9387:         } else {
 9388:             $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
 9389:         }
 9390:     }
 9391:     if ($symb) {
 9392:         my %recorded;
 9393:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
 9394:         if ($returnhash{'version'}) {
 9395:             my %lasthash=();
 9396:             my $version;
 9397:             for ($version=1;$version<=$returnhash{'version'};$version++) {
 9398:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
 9399:                     $lasthash{$key}=$returnhash{$version.':'.$key};
 9400:                 }
 9401:             }
 9402:             foreach my $key (keys(%lasthash)) {
 9403:                 if ($key =~ /\.scantron$/) {
 9404:                     my $value = &unescape($lasthash{$key});
 9405:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
 9406:                     if ($value eq '') {
 9407:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
 9408:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
 9409:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9410:                             }
 9411:                         }
 9412:                     } else {
 9413:                         my @tocheck;
 9414:                         my @items = split(//,$value);
 9415:                         if (($scantron_config->{'Qon'} eq 'letter') ||
 9416:                             ($scantron_config->{'Qon'} eq 'number')) {
 9417:                             if (@items < $expected{$part_id}) {
 9418:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
 9419:                                 my @singles = split(//,$fragment);
 9420:                                 foreach my $pos (@singles) {
 9421:                                     if ($pos eq ' ') {
 9422:                                         push(@tocheck,$pos);
 9423:                                     } else {
 9424:                                         my $next = shift(@items);
 9425:                                         push(@tocheck,$next);
 9426:                                     }
 9427:                                 }
 9428:                             } else {
 9429:                                 @tocheck = @items;
 9430:                             }
 9431:                             foreach my $letter (@tocheck) {
 9432:                                 if ($scantron_config->{'Qon'} eq 'letter') {
 9433:                                     if ($letter !~ /^[A-J]$/) {
 9434:                                         $letter = $scantron_config->{'Qoff'};
 9435:                                     }
 9436:                                     $recorded{$part_id} .= $letter;
 9437:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
 9438:                                     my $digit;
 9439:                                     if ($letter !~ /^[A-J]$/) {
 9440:                                         $digit = $scantron_config->{'Qoff'};
 9441:                                     } else {
 9442:                                         $digit = $lettdig->{$letter};
 9443:                                     }
 9444:                                     $recorded{$part_id} .= $digit;
 9445:                                 }
 9446:                             }
 9447:                         } else {
 9448:                             @tocheck = @items;
 9449:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
 9450:                                 my $curr_sub = shift(@tocheck);
 9451:                                 my $digit;
 9452:                                 if ($curr_sub =~ /^[A-J]$/) {
 9453:                                     $digit = $lettdig->{$curr_sub}-1;
 9454:                                 }
 9455:                                 if ($curr_sub eq 'J') {
 9456:                                     $digit += scalar($numletts);
 9457:                                 }
 9458:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9459:                                     if ($j == $digit) {
 9460:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
 9461:                                     } else {
 9462:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9463:                                     }
 9464:                                 }
 9465:                             }
 9466:                         }
 9467:                     }
 9468:                 }
 9469:             }
 9470:         }
 9471:         foreach my $part_id (@{$partids}) {
 9472:             if ($recorded{$part_id} eq '') {
 9473:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
 9474:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9475:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9476:                     }
 9477:                 }
 9478:             }
 9479:             $record .= $recorded{$part_id};
 9480:         }
 9481:     }
 9482:     return ($counter,$record);
 9483: }
 9484: 
 9485: sub letter_to_digits {
 9486:     my %lettdig = (
 9487:                     A => 1,
 9488:                     B => 2,
 9489:                     C => 3,
 9490:                     D => 4,
 9491:                     E => 5,
 9492:                     F => 6,
 9493:                     G => 7,
 9494:                     H => 8,
 9495:                     I => 9,
 9496:                     J => 0,
 9497:                   );
 9498:     return %lettdig;
 9499: }
 9500: 
 9501: 
 9502: #-------- end of section for handling grading scantron forms -------
 9503: #
 9504: #-------------------------------------------------------------------
 9505: 
 9506: #-------------------------- Menu interface -------------------------
 9507: #
 9508: #--- Show a Grading Menu button - Calls the next routine ---
 9509: sub show_grading_menu_form {
 9510:     my ($symb)=@_;
 9511:     my $result.='<br /><form action="/adm/grades" method="post">'."\n".
 9512: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9513: 	'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 9514: 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
 9515: 	'<input type="submit" name="submit" value="'.&mt('Grading Menu').'" />'."\n".
 9516: 	'</form>'."\n";
 9517:     return $result;
 9518: }
 9519: 
 9520: # -- Retrieve choices for grading form
 9521: sub savedState {
 9522:     my %savedState = ();
 9523:     if ($env{'form.saveState'}) {
 9524: 	foreach (split(/:/,$env{'form.saveState'})) {
 9525: 	    my ($key,$value) = split(/=/,$_,2);
 9526: 	    $savedState{$key} = $value;
 9527: 	}
 9528:     }
 9529:     return \%savedState;
 9530: }
 9531: 
 9532: #--- Href with symb and command ---
 9533: 
 9534: sub href_symb_cmd {
 9535:     my ($symb,$cmd)=@_;
 9536:     return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
 9537: }
 9538: 
 9539: sub grading_menu {
 9540:     my ($request) = @_;
 9541:     my ($symb)=&get_symb($request);
 9542:     if (!$symb) {return '';}
 9543:     my $probTitle = &Apache::lonnet::gettitle($symb);
 9544:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 9545: 
 9546:     $request->print($table);
 9547:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
 9548:                   'handgrade'=>$hdgrade,
 9549:                   'probTitle'=>$probTitle,
 9550:                   'command'=>'submit_options',
 9551:                   'saveState'=>"",
 9552:                   'gradingMenu'=>1,
 9553:                   'showgrading'=>"yes");
 9554:     
 9555:     my $url1 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9556:     
 9557:     $fields{'command'} = 'csvform';
 9558:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9559:     
 9560:     $fields{'command'} = 'processclicker';
 9561:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9562:     
 9563:     $fields{'command'} = 'scantron_selectphase';
 9564:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9565:     
 9566:     my @menu = ({	categorytitle=>'Course Grading',
 9567:             items =>[
 9568:                         {	linktext => 'Manual Grading/View Submissions',
 9569:                     		url => $url1,
 9570:                     		permission => 'F',
 9571:                     		icon => 'edit-find-replace.png',
 9572:                     		linktitle => 'Start the process of hand grading submissions.'
 9573:                         },
 9574:                 	    {	linktext => 'Upload Scores',
 9575:                     		url => $url2,
 9576:                     		permission => 'F',
 9577:                     		icon => 'uploadscores.png',
 9578:                     		linktitle => 'Specify a file containing the class scores for current resource.'
 9579:                 	    },
 9580:                 	    {	linktext => 'Process Clicker',
 9581:                     		url => $url3,
 9582:                     		permission => 'F',
 9583:                     		icon => 'addClickerInfoFile.png',
 9584:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
 9585:                 	    },
 9586:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
 9587:                     		url => $url4,
 9588:                     		permission => 'F',
 9589:                     		icon => 'stat.png',
 9590:                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
 9591:                 	    }
 9592:                     ]
 9593:             });
 9594: 
 9595:     #$fields{'command'} = 'verify';
 9596:     #$url = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9597:     #
 9598:     # Create the menu
 9599:     my $Str;
 9600:     # $Str .= '<h2>'.&mt('Please select a grading task').'</h2>';
 9601:     $Str .= '<form method="post" action="" name="gradingMenu">';
 9602:     $Str .= '<input type="hidden" name="command" value="" />'.
 9603:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9604: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 9605: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 9606: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 9607: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 9608: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 9609: 
 9610:     $Str .= Apache::lonhtmlcommon::generate_menu(@menu);
 9611:     #$menudata->{'jscript'}
 9612:     $Str .='<hr /><input type="button" value="'.&mt('Verify Receipt No.').'" '.
 9613:         ' onclick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.
 9614:         ' /> '.
 9615:         &Apache::lonnet::recprefix($env{'request.course.id'}).
 9616:         '-<input type="text" name="receipt" size="4" onchange="javascript:checkReceiptNo(this.form,\'OK\')" />';
 9617: 
 9618:     $Str .="</form>\n";
 9619:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box.");
 9620:     $request->print(<<GRADINGMENUJS);
 9621: <script type="text/javascript" language="javascript">
 9622:     function checkChoice(formname,val,cmdx) {
 9623: 	if (val <= 2) {
 9624: 	    var cmd = radioSelection(formname.radioChoice);
 9625: 	    var cmdsave = cmd;
 9626: 	} else {
 9627: 	    cmd = cmdx;
 9628: 	    cmdsave = 'submission';
 9629: 	}
 9630: 	formname.command.value = cmd;
 9631: 	if (val < 5) formname.submit();
 9632: 	if (val == 5) {
 9633: 	    if (!checkReceiptNo(formname,'notOK')) { 
 9634: 	        return false;
 9635: 	    } else {
 9636: 	        formname.submit();
 9637: 	    }
 9638: 	}
 9639:     }
 9640: 
 9641:     function checkReceiptNo(formname,nospace) {
 9642: 	var receiptNo = formname.receipt.value;
 9643: 	var checkOpt = false;
 9644: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 9645: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 9646: 	if (checkOpt) {
 9647: 	    alert("$receiptalert");
 9648: 	    formname.receipt.value = "";
 9649: 	    formname.receipt.focus();
 9650: 	    return false;
 9651: 	}
 9652: 	return true;
 9653:     }
 9654: </script>
 9655: GRADINGMENUJS
 9656:     &commonJSfunctions($request);
 9657:     return $Str;    
 9658: }
 9659: 
 9660: 
 9661: #--- Displays the submissions first page -------
 9662: sub submit_options {
 9663:     my ($request) = @_;
 9664:     my ($symb)=&get_symb($request);
 9665:     if (!$symb) {return '';}
 9666:     my $probTitle = &Apache::lonnet::gettitle($symb);
 9667: 
 9668:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); 
 9669:     $request->print(<<GRADINGMENUJS);
 9670: <script type="text/javascript" language="javascript">
 9671:     function checkChoice(formname,val,cmdx) {
 9672: 	if (val <= 2) {
 9673: 	    var cmd = radioSelection(formname.radioChoice);
 9674: 	    var cmdsave = cmd;
 9675: 	} else {
 9676: 	    cmd = cmdx;
 9677: 	    cmdsave = 'submission';
 9678: 	}
 9679: 	formname.command.value = cmd;
 9680: 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
 9681: 	    ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
 9682: 	if (val < 5) formname.submit();
 9683: 	if (val == 5) {
 9684: 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
 9685: 	    formname.submit();
 9686: 	}
 9687: 	if (val < 7) formname.submit();
 9688:     }
 9689: 
 9690:     function checkReceiptNo(formname,nospace) {
 9691: 	var receiptNo = formname.receipt.value;
 9692: 	var checkOpt = false;
 9693: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 9694: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 9695: 	if (checkOpt) {
 9696: 	    alert("$receiptalert");
 9697: 	    formname.receipt.value = "";
 9698: 	    formname.receipt.focus();
 9699: 	    return false;
 9700: 	}
 9701: 	return true;
 9702:     }
 9703: </script>
 9704: GRADINGMENUJS
 9705:     &commonJSfunctions($request);
 9706:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 9707:     my $result;
 9708:     my (undef,$sections) = &getclasslist('all','0');
 9709:     my $savedState = &savedState();
 9710:     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
 9711:     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
 9712:     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
 9713:     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
 9714: 
 9715:     # Preselect sections
 9716:     my $selsec="";
 9717:     if (ref($sections)) {
 9718:         foreach my $section (sort(@$sections)) {
 9719:             $selsec.='<option value="'.$section.'" '.
 9720:                 ($saveSec eq $section ? 'selected="selected"':'').'>'.$section.'</option>'."\n";
 9721:         }
 9722:     }
 9723: 
 9724:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9725: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 9726: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 9727: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 9728: 	'<input type="hidden" name="command"     value="" />'."\n".
 9729: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 9730: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 9731: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 9732: 
 9733:     $result.='
 9734: <h2>
 9735:   '.&mt('Grade Current Resource').'
 9736: </h2>
 9737: <div>
 9738:   '.$table.'
 9739: </div>
 9740: 
 9741: <div class="LC_columnSection">
 9742:   
 9743:     <fieldset>
 9744:       <legend>
 9745:        '.&mt('Sections').'
 9746:       </legend>
 9747:       <select name="section" multiple="multiple" size="5">'."\n";
 9748:     $result.= $selsec;
 9749:     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="selected"' : ''). '>all</option></select> &nbsp; ';
 9750:     $result.='
 9751:     </fieldset>
 9752:   
 9753:     <fieldset>
 9754:       <legend>
 9755:         '.&mt('Groups').'
 9756:       </legend>
 9757:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
 9758:     </fieldset>
 9759:   
 9760:     <fieldset>
 9761:       <legend>
 9762:         '.&mt('Access Status').'
 9763:       </legend>
 9764:       '.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,5,undef,'mult').'
 9765:     </fieldset>
 9766:   
 9767:     <fieldset>
 9768:       <legend>
 9769:         '.&mt('Submission Status').'
 9770:       </legend>
 9771:       <select name="submitonly" size="5">
 9772: 	         <option value="yes" '.      ($saveSub eq 'yes'       ? 'selected="selected"' : '').'>'.&mt('with submissions').'</option>
 9773: 	         <option value="queued" '.   ($saveSub eq 'queued'    ? 'selected="selected"' : '').'>'.&mt('in grading queue').'</option>
 9774: 	         <option value="graded" '.   ($saveSub eq 'graded'    ? 'selected="selected"' : '').'>'.&mt('with ungraded submissions').'</option>
 9775: 	         <option value="incorrect" '.($saveSub eq 'incorrect' ? 'selected="selected"' : '').'>'.&mt('with incorrect submissions').'</option>
 9776:                  <option value="all" '.      ($saveSub eq 'all'       ? 'selected="selected"' : '').'>'.&mt('with any status').'</option>
 9777:       </select>
 9778:     </fieldset>
 9779:   
 9780: </div>
 9781: 
 9782: <br />
 9783:           <div>
 9784:             <div>
 9785:               <label>
 9786:                 <input type="radio" name="radioChoice" value="submission" '.
 9787:                   ($saveCmd eq 'submission' ? 'checked="checked"' : '').' /> '.
 9788:              &mt('Select individual students to grade and view submissions.').'
 9789: 	      </label> 
 9790:             </div>
 9791:             <div>
 9792: 	      <label>
 9793:                 <input type="radio" name="radioChoice" value="viewgrades" '.
 9794:                   ($saveCmd eq 'viewgrades' ? 'checked="checked"' : '').' /> '.
 9795:                     &mt('Grade all selected students in a grading table.').'
 9796:               </label>
 9797:             </div>
 9798:             <div>
 9799: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 9800:             </div>
 9801:           </div>
 9802: 
 9803: 
 9804:         <h2>
 9805:          '.&mt('Grade Complete Folder for One Student').'
 9806:         </h2>
 9807:         <div>
 9808:             <div>
 9809:               <label>
 9810:                 <input type="radio" name="radioChoice" value="pickStudentPage" '.
 9811: 	  ($saveCmd eq 'pickStudentPage' ? 'checked="checked"' : '').' /> '.
 9812:   &mt('The <b>complete</b> page/sequence/folder: For one student').'
 9813:               </label>
 9814:             </div>
 9815:             <div>
 9816: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 9817:             </div>
 9818:         </div>
 9819:   </form>';
 9820:     $result .= &show_grading_menu_form($symb);
 9821:     return $result;
 9822: }
 9823: 
 9824: sub reset_perm {
 9825:     undef(%perm);
 9826: }
 9827: 
 9828: sub init_perm {
 9829:     &reset_perm();
 9830:     foreach my $test_perm ('vgr','mgr','opa') {
 9831: 
 9832: 	my $scope = $env{'request.course.id'};
 9833: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
 9834: 
 9835: 	    $scope .= '/'.$env{'request.course.sec'};
 9836: 	    if ( $perm{$test_perm}=
 9837: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
 9838: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
 9839: 	    } else {
 9840: 		delete($perm{$test_perm});
 9841: 	    }
 9842: 	}
 9843:     }
 9844: }
 9845: 
 9846: sub init_old_essays {
 9847:     my ($symb,$apath,$adom,$aname) = @_;
 9848:     if ($symb ne '') {
 9849:         my %essays = &Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
 9850:         if (keys(%essays) > 0) {
 9851:             $old_essays{$symb} = \%essays;
 9852:         }
 9853:     }
 9854:     return;
 9855: }
 9856: 
 9857: sub reset_old_essays {
 9858:     undef(%old_essays);
 9859: }
 9860: 
 9861: sub gather_clicker_ids {
 9862:     my %clicker_ids;
 9863: 
 9864:     my $classlist = &Apache::loncoursedata::get_classlist();
 9865: 
 9866:     # Set up a couple variables.
 9867:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
 9868:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
 9869:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
 9870: 
 9871:     foreach my $student (keys(%$classlist)) {
 9872:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
 9873:         my $username = $classlist->{$student}->[$username_idx];
 9874:         my $domain   = $classlist->{$student}->[$domain_idx];
 9875:         my $clickers =
 9876: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 9877:         foreach my $id (split(/\,/,$clickers)) {
 9878:             $id=~s/^[\#0]+//;
 9879:             $id=~s/[\-\:]//g;
 9880:             if (exists($clicker_ids{$id})) {
 9881: 		$clicker_ids{$id}.=','.$username.':'.$domain;
 9882:             } else {
 9883: 		$clicker_ids{$id}=$username.':'.$domain;
 9884:             }
 9885:         }
 9886:     }
 9887:     return %clicker_ids;
 9888: }
 9889: 
 9890: sub gather_adv_clicker_ids {
 9891:     my %clicker_ids;
 9892:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
 9893:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 9894:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 9895:     foreach my $element (sort(keys(%coursepersonnel))) {
 9896:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
 9897:             my ($puname,$pudom)=split(/\:/,$person);
 9898:             my $clickers =
 9899: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
 9900:             foreach my $id (split(/\,/,$clickers)) {
 9901: 		$id=~s/^[\#0]+//;
 9902:                 $id=~s/[\-\:]//g;
 9903: 		if (exists($clicker_ids{$id})) {
 9904: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
 9905: 		} else {
 9906: 		    $clicker_ids{$id}=$puname.':'.$pudom;
 9907: 		}
 9908:             }
 9909:         }
 9910:     }
 9911:     return %clicker_ids;
 9912: }
 9913: 
 9914: sub clicker_grading_parameters {
 9915:     return ('gradingmechanism' => 'scalar',
 9916:             'upfiletype' => 'scalar',
 9917:             'specificid' => 'scalar',
 9918:             'pcorrect' => 'scalar',
 9919:             'pincorrect' => 'scalar');
 9920: }
 9921: 
 9922: sub process_clicker {
 9923:     my ($r)=@_;
 9924:     my ($symb)=&get_symb($r);
 9925:     if (!$symb) {return '';}
 9926:     my $result=&checkforfile_js();
 9927:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 9928:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 9929:     $result.=$table;
 9930:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 9931:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 9932:     $result.='&nbsp;<b>'.&mt('Specify a file containing the clicker information for this resource.').
 9933:         '</b></td></tr>'."\n";
 9934:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
 9935: # Attempt to restore parameters from last session, set defaults if not present
 9936:     my %Saveable_Parameters=&clicker_grading_parameters();
 9937:     &Apache::loncommon::restore_course_settings('grades_clicker',
 9938:                                                  \%Saveable_Parameters);
 9939:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
 9940:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
 9941:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
 9942:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
 9943: 
 9944:     my %checked;
 9945:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
 9946:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
 9947:           $checked{$gradingmechanism}=' checked="checked"';
 9948:        }
 9949:     }
 9950: 
 9951:     my $upload=&mt("Upload File");
 9952:     my $type=&mt("Type");
 9953:     my $attendance=&mt("Award points just for participation");
 9954:     my $personnel=&mt("Correctness determined from response by course personnel");
 9955:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
 9956:     my $given=&mt("Correctness determined from given list of answers").' '.
 9957:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
 9958:     my $pcorrect=&mt("Percentage points for correct solution");
 9959:     my $pincorrect=&mt("Percentage points for incorrect solution");
 9960:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
 9961:                                                    {'iclicker' => 'i>clicker',
 9962:                                                     'interwrite' => 'interwrite PRS',
 9963:                                                     'turning' => 'Turning Technologies'});
 9964:     $symb = &Apache::lonenc::check_encrypt($symb);
 9965:     $result.=<<ENDUPFORM;
 9966: <script type="text/javascript">
 9967: function sanitycheck() {
 9968: // Accept only integer percentages
 9969:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
 9970:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
 9971: // Find out grading choice
 9972:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9973:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
 9974:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
 9975:       }
 9976:    }
 9977: // By default, new choice equals user selection
 9978:    newgradingchoice=gradingchoice;
 9979: // Not good to give more points for false answers than correct ones
 9980:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
 9981:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
 9982:    }
 9983: // If new choice is attendance only, and old choice was correctness-based, restore defaults
 9984:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
 9985:       document.forms.gradesupload.pcorrect.value=100;
 9986:       document.forms.gradesupload.pincorrect.value=100;
 9987:    }
 9988: // If the values are different, cannot be attendance only
 9989:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
 9990:        (gradingchoice=='attendance')) {
 9991:        newgradingchoice='personnel';
 9992:    }
 9993: // Change grading choice to new one
 9994:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9995:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
 9996:          document.forms.gradesupload.gradingmechanism[i].checked=true;
 9997:       } else {
 9998:          document.forms.gradesupload.gradingmechanism[i].checked=false;
 9999:       }
10000:    }
10001: // Remember the old state
10002:    document.forms.gradesupload.waschecked.value=newgradingchoice;
10003: }
10004: </script>
10005: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
10006: <input type="hidden" name="symb" value="$symb" />
10007: <input type="hidden" name="command" value="processclickerfile" />
10008: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
10009: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
10010: <input type="file" name="upfile" size="50" />
10011: <br /><label>$type: $selectform</label>
10012: <br /><label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
10013: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
10014: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
10015: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
10016: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
10017: <br />&nbsp;&nbsp;&nbsp;
10018: <input type="text" name="givenanswer" size="50" />
10019: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
10020: <br /><label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
10021: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
10022: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
10023: </form>
10024: ENDUPFORM
10025:     $result.='</td></tr></table>'."\n".
10026:              '</td></tr></table><br /><br />'."\n";
10027:     $result.=&show_grading_menu_form($symb);
10028:     return $result;
10029: }
10030: 
10031: sub process_clicker_file {
10032:     my ($r)=@_;
10033:     my ($symb)=&get_symb($r);
10034:     if (!$symb) {return '';}
10035: 
10036:     my %Saveable_Parameters=&clicker_grading_parameters();
10037:     &Apache::loncommon::store_course_settings('grades_clicker',
10038:                                               \%Saveable_Parameters);
10039: 
10040:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
10041:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
10042: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
10043: 	return $result.&show_grading_menu_form($symb);
10044:     }
10045:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
10046:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
10047:         return $result.&show_grading_menu_form($symb);
10048:     }
10049:     my $foundgiven=0;
10050:     if ($env{'form.gradingmechanism'} eq 'given') {
10051:         $env{'form.givenanswer'}=~s/^\s*//gs;
10052:         $env{'form.givenanswer'}=~s/\s*$//gs;
10053:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
10054:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
10055:         my @answers=split(/\,/,$env{'form.givenanswer'});
10056:         $foundgiven=$#answers+1;
10057:     }
10058:     my %clicker_ids=&gather_clicker_ids();
10059:     my %correct_ids;
10060:     if ($env{'form.gradingmechanism'} eq 'personnel') {
10061: 	%correct_ids=&gather_adv_clicker_ids();
10062:     }
10063:     if ($env{'form.gradingmechanism'} eq 'specific') {
10064: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
10065: 	   $correct_id=~tr/a-z/A-Z/;
10066: 	   $correct_id=~s/\s//gs;
10067: 	   $correct_id=~s/^[\#0]+//;
10068:            $correct_id=~s/[\-\:]//g;
10069:            if ($correct_id) {
10070: 	      $correct_ids{$correct_id}='specified';
10071:            }
10072:         }
10073:     }
10074:     if ($env{'form.gradingmechanism'} eq 'attendance') {
10075: 	$result.=&mt('Score based on attendance only');
10076:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
10077:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
10078:     } else {
10079: 	my $number=0;
10080: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
10081: 	foreach my $id (sort(keys(%correct_ids))) {
10082: 	    $result.='<br /><tt>'.$id.'</tt> - ';
10083: 	    if ($correct_ids{$id} eq 'specified') {
10084: 		$result.=&mt('specified');
10085: 	    } else {
10086: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
10087: 		$result.=&Apache::loncommon::plainname($uname,$udom);
10088: 	    }
10089: 	    $number++;
10090: 	}
10091:         $result.="</p>\n";
10092:         if ($number==0) {
10093:             $result .=
10094:                  &Apache::lonhtmlcommon::confirm_success(
10095:                      &mt('No IDs found to determine correct answer'),1);
10096:             return $result,.&show_grading_menu_form($symb);
10097:         }
10098:     }
10099:     if (length($env{'form.upfile'}) < 2) {
10100:         $result .=
10101:             &Apache::lonhtmlcommon::confirm_success(
10102:                 &mt('The file: [_1] you attempted to upload contained no information. Please check that you entered the correct filename.',
10103:                         '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'),1);
10104:         return $result.&show_grading_menu_form($symb);
10105:     }
10106: 
10107: # Were able to get all the info needed, now analyze the file
10108: 
10109:     $result.=&Apache::loncommon::studentbrowser_javascript();
10110:     $symb = &Apache::lonenc::check_encrypt($symb);
10111:     my $heading=&mt('Scanning clicker file');
10112:     $result.=(<<ENDHEADER);
10113: <br /><table width="100%" border="0"><tr><td bgcolor="#777777">
10114: <table width="100%" border="0"><tr bgcolor="#e6ffff"><td>
10115: <b>$heading</b></td></tr><tr bgcolor="#ffffe6"><td>
10116: <form method="post" action="/adm/grades" name="clickeranalysis">
10117: <input type="hidden" name="symb" value="$symb" />
10118: <input type="hidden" name="command" value="assignclickergrades" />
10119: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
10120: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
10121: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
10122: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
10123: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
10124: ENDHEADER
10125:     if ($env{'form.gradingmechanism'} eq 'given') {
10126:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
10127:     } 
10128:     my %responses;
10129:     my @questiontitles;
10130:     my $errormsg='';
10131:     my $number=0;
10132:     if ($env{'form.upfiletype'} eq 'iclicker') {
10133: 	($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
10134:     }
10135:     if ($env{'form.upfiletype'} eq 'interwrite') {
10136:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
10137:     }
10138:     if ($env{'form.upfiletype'} eq 'turning') {
10139:         ($errormsg,$number)=&turning_eval(\@questiontitles,\%responses);
10140:     }
10141:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
10142:              '<input type="hidden" name="number" value="'.$number.'" />'.
10143:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
10144:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
10145:              '<br />';
10146:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
10147:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
10148:        return $result.&show_grading_menu_form($symb);
10149:     } 
10150: # Remember Question Titles
10151: # FIXME: Possibly need delimiter other than ":"
10152:     for (my $i=0;$i<$number;$i++) {
10153:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
10154:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
10155:     }
10156:     my $correct_count=0;
10157:     my $student_count=0;
10158:     my $unknown_count=0;
10159: # Match answers with usernames
10160: # FIXME: Possibly need delimiter other than ":"
10161:     foreach my $id (keys(%responses)) {
10162:        if ($correct_ids{$id}) {
10163:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
10164:           $correct_count++;
10165:        } elsif ($clicker_ids{$id}) {
10166:           if ($clicker_ids{$id}=~/\,/) {
10167: # More than one user with the same clicker!
10168:              $result.="\n<hr />".&mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
10169:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
10170:                            "<select name='multi".$id."'>";
10171:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
10172:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
10173:              }
10174:              $result.='</select>';
10175:              $unknown_count++;
10176:           } else {
10177: # Good: found one and only one user with the right clicker
10178:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
10179:              $student_count++;
10180:           }
10181:        } else {
10182:           $result.="\n<hr />".&mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
10183:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
10184:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
10185:                    "\n".&mt("Domain").": ".
10186:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
10187:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
10188:           $unknown_count++;
10189:        }
10190:     }
10191:     $result.='<hr />'.
10192:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
10193:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
10194:        if ($correct_count==0) {
10195:           $errormsg.="Found no correct answers for grading!";
10196:        } elsif ($correct_count>1) {
10197:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
10198:        }
10199:     }
10200:     if ($number<1) {
10201:        $errormsg.="Found no questions.";
10202:     }
10203:     if ($errormsg) {
10204:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
10205:     } else {
10206:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
10207:     }
10208:     $result.='</form></td></tr></table>'."\n".
10209:              '</td></tr></table><br /><br />'."\n";
10210:     return $result.&show_grading_menu_form($symb);
10211: }
10212: 
10213: sub iclicker_eval {
10214:     my ($questiontitles,$responses)=@_;
10215:     my $number=0;
10216:     my $errormsg='';
10217:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10218:         my %components=&Apache::loncommon::record_sep($line);
10219:         my @entries=map {$components{$_}} (sort(keys(%components)));
10220: 	if ($entries[0] eq 'Question') {
10221: 	    for (my $i=3;$i<$#entries;$i+=6) {
10222: 		$$questiontitles[$number]=$entries[$i];
10223: 		$number++;
10224: 	    }
10225: 	}
10226: 	if ($entries[0]=~/^\#/) {
10227: 	    my $id=$entries[0];
10228: 	    my @idresponses;
10229: 	    $id=~s/^[\#0]+//;
10230: 	    for (my $i=0;$i<$number;$i++) {
10231: 		my $idx=3+$i*6;
10232:                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
10233: 		push(@idresponses,$entries[$idx]);
10234: 	    }
10235: 	    $$responses{$id}=join(',',@idresponses);
10236: 	}
10237:     }
10238:     return ($errormsg,$number);
10239: }
10240: 
10241: sub interwrite_eval {
10242:     my ($questiontitles,$responses)=@_;
10243:     my $number=0;
10244:     my $errormsg='';
10245:     my $skipline=1;
10246:     my $questionnumber=0;
10247:     my %idresponses=();
10248:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10249:         my %components=&Apache::loncommon::record_sep($line);
10250:         my @entries=map {$components{$_}} (sort(keys(%components)));
10251:         if ($entries[1] eq 'Time') { $skipline=0; next; }
10252:         if ($entries[1] eq 'Response') { $skipline=1; }
10253:         next if $skipline;
10254:         if ($entries[0]!=$questionnumber) {
10255:            $questionnumber=$entries[0];
10256:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
10257:            $number++;
10258:         }
10259:         my $id=$entries[4];
10260:         $id=~s/^[\#0]+//;
10261:         $id=~s/^v\d*\://i;
10262:         $id=~s/[\-\:]//g;
10263:         $idresponses{$id}[$number]=$entries[6];
10264:     }
10265:     foreach my $id (keys(%idresponses)) {
10266:        $$responses{$id}=join(',',@{$idresponses{$id}});
10267:        $$responses{$id}=~s/^\s*\,//;
10268:     }
10269:     return ($errormsg,$number);
10270: }
10271: 
10272: sub turning_eval {
10273:     my ($questiontitles,$responses)=@_;
10274:     my $number=0;
10275:     my $errormsg='';
10276:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
10277:         my %components=&Apache::loncommon::record_sep($line);
10278:         my @entries=map {$components{$_}} (sort(keys(%components)));
10279:         if ($#entries>$number) { $number=$#entries; }
10280:         my $id=$entries[0];
10281:         my @idresponses;
10282:         $id=~s/^[\#0]+//;
10283:         unless ($id) { next; }
10284:         for (my $idx=1;$idx<=$#entries;$idx++) {
10285:             $entries[$idx]=~s/\,/\;/g;
10286:             $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+\;]+//g;
10287:             push(@idresponses,$entries[$idx]);
10288:         }
10289:         $$responses{$id}=join(',',@idresponses);
10290:     }
10291:     for (my $i=1; $i<=$number; $i++) {
10292:         $$questiontitles[$i]=&mt('Question [_1]',$i);
10293:     }
10294:     return ($errormsg,$number);
10295: }
10296: 
10297: sub assign_clicker_grades {
10298:     my ($r)=@_;
10299:     my ($symb)=&get_symb($r);
10300:     if (!$symb) {return '';}
10301: # See which part we are saving to
10302:     my $res_error;
10303:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
10304:     if ($res_error) {
10305:         return &navmap_errormsg();
10306:     }
10307: # FIXME: This should probably look for the first handgradeable part
10308:     my $part=$$partlist[0];
10309: # Start screen output
10310:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
10311: 
10312:     $result .= '<br />'.
10313:                &Apache::loncommon::start_data_table().
10314:                &Apache::loncommon::start_data_table_header_row().
10315:                '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
10316:                &Apache::loncommon::end_data_table_header_row().
10317:                &Apache::loncommon::start_data_table_row().'<td>';
10318: 
10319: # Get correct result
10320: # FIXME: Possibly need delimiter other than ":"
10321:     my @correct=();
10322:     my $gradingmechanism=$env{'form.gradingmechanism'};
10323:     my $number=$env{'form.number'};
10324:     if ($gradingmechanism ne 'attendance') {
10325:        foreach my $key (keys(%env)) {
10326:           if ($key=~/^form\.correct\:/) {
10327:              my @input=split(/\,/,$env{$key});
10328:              for (my $i=0;$i<=$#input;$i++) {
10329:                  if (($correct[$i]) && ($input[$i]) &&
10330:                      ($correct[$i] ne $input[$i])) {
10331:                     $result.='<br /><span class="LC_warning">'.
10332:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
10333:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
10334:                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
10335:                     $correct[$i]=$input[$i];
10336:                  }
10337:              }
10338:           }
10339:        }
10340:        for (my $i=0;$i<$number;$i++) {
10341:           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
10342:              $result.='<br /><span class="LC_error">'.
10343:                       &mt('No correct result given for question "[_1]"!',
10344:                           $env{'form.question:'.$i}).'</span>';
10345:           }
10346:        }
10347:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
10348:     }
10349: # Start grading
10350:     my $pcorrect=$env{'form.pcorrect'};
10351:     my $pincorrect=$env{'form.pincorrect'};
10352:     my $storecount=0;
10353:     my %users=();
10354:     foreach my $key (keys(%env)) {
10355:        my $user='';
10356:        if ($key=~/^form\.student\:(.*)$/) {
10357:           $user=$1;
10358:        }
10359:        if ($key=~/^form\.unknown\:(.*)$/) {
10360:           my $id=$1;
10361:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
10362:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
10363:           } elsif ($env{'form.multi'.$id}) {
10364:              $user=$env{'form.multi'.$id};
10365:           }
10366:        }
10367:        if ($user) {
10368:           if ($users{$user}) {
10369:              $result.='<br /><span class="LC_warning">'.
10370:                       &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
10371:                       '</span><br />';
10372:           }
10373:           $users{$user}=1;
10374:           my @answer=split(/\,/,$env{$key});
10375:           my $sum=0;
10376:           my $realnumber=$number;
10377:           for (my $i=0;$i<$number;$i++) {
10378:              if  ($correct[$i] eq '-') {
10379:                 $realnumber--;
10380:              } elsif ($answer[$i]) {
10381:                 if ($gradingmechanism eq 'attendance') {
10382:                    $sum+=$pcorrect;
10383:                 } elsif ($correct[$i] eq '*') {
10384:                    $sum+=$pcorrect;
10385:                 } else {
10386: # We actually grade if correct or not
10387:                    my $increment=$pincorrect;
10388: # Special case: numerical answer "0"
10389:                    if ($correct[$i] eq '0') {
10390:                       if ($answer[$i]=~/^[0\.]+$/) {
10391:                          $increment=$pcorrect;
10392:                       }
10393: # General numerical answer, both evaluate to something non-zero
10394:                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
10395:                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
10396:                          $increment=$pcorrect;
10397:                       }
10398: # Must be just alphanumeric
10399:                    } elsif ($answer[$i] eq $correct[$i]) {
10400:                       $increment=$pcorrect;
10401:                    }
10402:                    $sum+=$increment;
10403:                 }
10404:              }
10405:           }
10406:           my $ave=$sum/(100*$realnumber);
10407: # Store
10408:           my ($username,$domain)=split(/\:/,$user);
10409:           my %grades=();
10410:           $grades{"resource.$part.solved"}='correct_by_override';
10411:           $grades{"resource.$part.awarded"}=$ave;
10412:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
10413:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
10414:                                                  $env{'request.course.id'},
10415:                                                  $domain,$username);
10416:           if ($returncode ne 'ok') {
10417:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
10418:           } else {
10419:              $storecount++;
10420:           }
10421:        }
10422:     }
10423: # We are done
10424:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
10425:              '</td>'.
10426:              &Apache::loncommon::end_data_table_row().
10427:              &Apache::loncommon::end_data_table()."<br /><br />\n";
10428:     return $result.&show_grading_menu_form($symb);
10429: }
10430: 
10431: sub navmap_errormsg {
10432:     return '<div class="LC_error">'.
10433:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
10434:            &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='.$env{'request.role'}.'">','</a>').
10435:            '</div>';
10436: }
10437: 
10438: sub startpage {
10439:     my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js) = @_;
10440:     if ($nomenu) {
10441:         $r->print(&Apache::loncommon::start_page("Student's Version",$js,{'only_body' => '1'}));
10442:     } else {
10443:         $r->print(&Apache::loncommon::start_page('Grading',$js,
10444:                                                  {'bread_crumbs' => $crumbs}));
10445:     }
10446:     unless ($nodisplayflag) {
10447:        $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp));
10448:     }
10449: }
10450: 
10451: sub handler {
10452:     my $request=$_[0];
10453:     &reset_caches();
10454:     if ($request->header_only) {
10455:         &Apache::loncommon::content_type($request,'text/html');
10456:         $request->send_http_header;
10457:         return OK;
10458:     }
10459:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
10460: 
10461:     my $symb=&get_symb($request,1);
10462:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
10463:     my $command=$commands[0];
10464: 
10465:     if ($#commands > 0) {
10466: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
10467:     }
10468: 
10469:     $ssi_error = 0;
10470:     my $brcrum = [{href=>"/adm/grades",text=>"Grading"}];
10471:     my $start_page = &Apache::loncommon::start_page('Grading',undef,
10472:                                                     {'bread_crumbs' => $brcrum});
10473:     if ($symb eq '' && $command eq '') {
10474: 	if ($env{'user.adv'}) {
10475:             &Apache::loncommon::content_type($request,'text/html');
10476:             $request->send_http_header;
10477:             $request->print($start_page);
10478: 	    if (($env{'form.codeone'}) && ($env{'form.codetwo'}) &&
10479: 		($env{'form.codethree'})) {
10480: 		my $token=$env{'form.codeone'}.'*'.$env{'form.codetwo'}.'*'.
10481: 		    $env{'form.codethree'};
10482: 		my ($tsymb,$tuname,$tudom,$tcrsid)=
10483: 		    &Apache::lonnet::checkin($token);
10484: 		if ($tsymb) {
10485: 		    my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
10486: 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
10487: 			$request->print(&ssi_with_retries('/res/'.$url, $ssi_retries,
10488: 					  ('grade_username' => $tuname,
10489: 					   'grade_domain' => $tudom,
10490: 					   'grade_courseid' => $tcrsid,
10491: 					   'grade_symb' => $tsymb)));
10492: 		    } else {
10493: 			$request->print('<h3>Not authorized: '.$token.'</h3>');
10494: 		    }
10495: 		} else {
10496: 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
10497: 		}
10498: 	    } else {
10499: 		$request->print(&Apache::lonxml::tokeninputfield());
10500: 	    }
10501:         } elsif ($env{'request.course.id'}) {
10502:             &init_perm(); 
10503:             if (!%perm) {
10504:                 $request->internal_redirect('/adm/quickgrades');
10505:                 return OK;
10506:             } else {
10507:                 &Apache::loncommon::content_type($request,'text/html');
10508:                 $request->send_http_header;
10509:                 $request->print($start_page);
10510:             }
10511:         }
10512:     } else {
10513:         &init_perm();
10514:         if (!$env{'request.course.id'}) {
10515:             unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
10516:                     ($command =~ /^scantronupload/)) {
10517:                 # Not in a course.
10518:                 $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
10519:                 return HTTP_NOT_ACCEPTABLE;
10520:             }
10521:         } elsif (!%perm) {
10522:             $request->internal_redirect('/adm/quickgrades');
10523:         }
10524:         &Apache::loncommon::content_type($request,'text/html');
10525:         $request->send_http_header;
10526:         unless ((($command eq 'submission' || $command eq 'versionsub')) && ($perm{'vgr'})) {
10527:             $request->print($start_page); 
10528:         }
10529: 	if ($command eq 'submission' && $perm{'vgr'}) {
10530:             my ($stuvcurrent,$stuvdisp,$versionform,$js);
10531:             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
10532:                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
10533:                     &choose_task_version_form($symb,$env{'form.student'},
10534:                                               $env{'form.userdom'});
10535:             }
10536:             &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
10537:             if ($versionform) {
10538:                 $request->print($versionform);
10539:             }
10540:             $request->print('<br clear="all" />');
10541: 	    ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
10542:         } elsif ($command eq 'versionsub' && $perm{'vgr'}) {
10543:             my ($stuvcurrent,$stuvdisp,$versionform,$js) =
10544:                 &choose_task_version_form($symb,$env{'form.student'},
10545:                                           $env{'form.userdom'},
10546:                                           $env{'form.inhibitmenu'});
10547:             &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,$stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$js);
10548:             if ($versionform) {
10549:                 $request->print($versionform);
10550:             }
10551:             $request->print('<br clear="all" />');
10552:             $request->print(&show_previous_task_version($request,$symb));
10553: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
10554: 	    &pickStudentPage($request);
10555: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
10556: 	    &displayPage($request);
10557: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
10558: 	    &updateGradeByPage($request);
10559: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
10560: 	    &processGroup($request);
10561: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
10562: 	    $request->print(&grading_menu($request));
10563: 	} elsif ($command eq 'submit_options' && $perm{'vgr'}) {
10564: 	    $request->print(&submit_options($request));
10565: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
10566: 	    $request->print(&viewgrades($request));
10567: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
10568: 	    $request->print(&processHandGrade($request));
10569: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
10570: 	    $request->print(&editgrades($request));
10571: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
10572: 	    $request->print(&verifyreceipt($request));
10573:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
10574:             $request->print(&process_clicker($request));
10575:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
10576:             $request->print(&process_clicker_file($request));
10577:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
10578:             $request->print(&assign_clicker_grades($request));
10579: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
10580: 	    $request->print(&upcsvScores_form($request));
10581: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
10582: 	    $request->print(&csvupload($request));
10583: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
10584: 	    $request->print(&csvuploadmap($request));
10585: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
10586: 	    if ($env{'form.associate'} ne 'Reverse Association') {
10587: 		$request->print(&csvuploadoptions($request));
10588: 	    } else {
10589: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
10590: 		    $env{'form.upfile_associate'} = 'reverse';
10591: 		} else {
10592: 		    $env{'form.upfile_associate'} = 'forward';
10593: 		}
10594: 		$request->print(&csvuploadmap($request));
10595: 	    }
10596: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
10597: 	    $request->print(&csvuploadassign($request));
10598: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
10599: 	    $request->print(&scantron_selectphase($request));
10600:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
10601:  	    $request->print(&scantron_do_warning($request));
10602: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
10603: 	    $request->print(&scantron_validate_file($request));
10604: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
10605: 	    $request->print(&scantron_process_students($request));
10606:  	} elsif ($command eq 'scantronupload' && 
10607:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10608: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10609:  	    $request->print(&scantron_upload_scantron_data($request)); 
10610:  	} elsif ($command eq 'scantronupload_save' &&
10611:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10612: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10613:  	    $request->print(&scantron_upload_scantron_data_save($request));
10614:  	} elsif ($command eq 'scantron_download' &&
10615: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
10616:  	    $request->print(&scantron_download_scantron_data($request));
10617:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
10618:             $request->print(&checkscantron_results($request));     
10619: 	} elsif ($command) {
10620: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
10621: 	}
10622:     }
10623:     if ($ssi_error) {
10624: 	&ssi_print_error($request);
10625:     }
10626:     $request->print(&Apache::loncommon::end_page());
10627:     &reset_caches();
10628:     return OK;
10629: }
10630: 
10631: 1;
10632: 
10633: __END__;
10634: 
10635: 
10636: =head1 NAME
10637: 
10638: Apache::grades
10639: 
10640: =head1 SYNOPSIS
10641: 
10642: Handles the viewing of grades.
10643: 
10644: This is part of the LearningOnline Network with CAPA project
10645: described at http://www.lon-capa.org.
10646: 
10647: =head1 OVERVIEW
10648: 
10649: Do an ssi with retries:
10650: While I'd love to factor out this with the vesrion in lonprintout,
10651: 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
10652: I'm not quite ready to invent (e.g. an ssi_with_retry object).
10653: 
10654: At least the logic that drives this has been pulled out into loncommon.
10655: 
10656: 
10657: 
10658: ssi_with_retries - Does the server side include of a resource.
10659:                      if the ssi call returns an error we'll retry it up to
10660:                      the number of times requested by the caller.
10661:                      If we still have a problem, no text is appended to the
10662:                      output and we set some global variables.
10663:                      to indicate to the caller an SSI error occurred.  
10664:                      All of this is supposed to deal with the issues described
10665:                      in LON-CAPA BZ 5631 see:
10666:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
10667:                      by informing the user that this happened.
10668: 
10669: Parameters:
10670:   resource   - The resource to include.  This is passed directly, without
10671:                interpretation to lonnet::ssi.
10672:   form       - The form hash parameters that guide the interpretation of the resource
10673:                
10674:   retries    - Number of retries allowed before giving up completely.
10675: Returns:
10676:   On success, returns the rendered resource identified by the resource parameter.
10677: Side Effects:
10678:   The following global variables can be set:
10679:    ssi_error                - If an unrecoverable error occurred this becomes true.
10680:                               It is up to the caller to initialize this to false
10681:                               if desired.
10682:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
10683:                               of the resource that could not be rendered by the ssi
10684:                               call.
10685:    ssi_error_message   - The error string fetched from the ssi response
10686:                               in the event of an error.
10687: 
10688: 
10689: =head1 HANDLER SUBROUTINE
10690: 
10691: ssi_with_retries()
10692: 
10693: =head1 SUBROUTINES
10694: 
10695: =over
10696: 
10697: =item scantron_get_correction() : 
10698: 
10699:    Builds the interface screen to interact with the operator to fix a
10700:    specific error condition in a specific scanline
10701: 
10702:  Arguments:
10703:     $r           - Apache request object
10704:     $i           - number of the current scanline
10705:     $scan_record - hash ref as returned from &scantron_parse_scanline()
10706:     $scan_config - hash ref as returned from &get_scantron_config()
10707:     $line        - full contents of the current scanline
10708:     $error       - error condition, valid values are
10709:                    'incorrectCODE', 'duplicateCODE',
10710:                    'doublebubble', 'missingbubble',
10711:                    'duplicateID', 'incorrectID'
10712:     $arg         - extra information needed
10713:        For errors:
10714:          - duplicateID   - paper number that this studentID was seen before on
10715:          - duplicateCODE - array ref of the paper numbers this CODE was
10716:                            seen on before
10717:          - incorrectCODE - current incorrect CODE 
10718:          - doublebubble  - array ref of the bubble lines that have double
10719:                            bubble errors
10720:          - missingbubble - array ref of the bubble lines that have missing
10721:                            bubble errors
10722: 
10723:    $randomorder - True if exam folder has randomorder set
10724:    $randompick  - True if exam folder has randompick set
10725:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
10726:                      for current line to question number used for same question
10727:                      in "Master Seqence" (as seen by Course Coordinator).
10728:    $startline   - Reference to hash where key is question number (0 is first)
10729:                   and value is number of first bubble line for current student
10730:                   or code-based randompick and/or randomorder.
10731: 
10732: 
10733: =item  scantron_get_maxbubble() : 
10734: 
10735:    Arguments:
10736:        $nav_error  - Reference to scalar which is a flag to indicate a
10737:                       failure to retrieve a navmap object.
10738:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
10739:        calling routine should trap the error condition and display the warning
10740:        found in &navmap_errormsg().
10741: 
10742:        $scantron_config - Reference to bubblesheet format configuration hash.
10743: 
10744:    Returns the maximum number of bubble lines that are expected to
10745:    occur. Does this by walking the selected sequence rendering the
10746:    resource and then checking &Apache::lonxml::get_problem_counter()
10747:    for what the current value of the problem counter is.
10748: 
10749:    Caches the results to $env{'form.scantron_maxbubble'},
10750:    $env{'form.scantron.bubble_lines.n'}, 
10751:    $env{'form.scantron.first_bubble_line.n'} and
10752:    $env{"form.scantron.sub_bubblelines.n"}
10753:    which are the total number of bubble lines, the number of bubble
10754:    lines for response n and number of the first bubble line for response n,
10755:    and a comma separated list of numbers of bubble lines for sub-questions
10756:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
10757: 
10758: 
10759: =item  scantron_validate_missingbubbles() : 
10760: 
10761:    Validates all scanlines in the selected file to not have any
10762:     answers that don't have bubbles that have not been verified
10763:     to be bubble free.
10764: 
10765: =item  scantron_process_students() : 
10766: 
10767:    Routine that does the actual grading of the bubblesheet information.
10768: 
10769:    The parsed scanline hash is added to %env 
10770: 
10771:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
10772:    foreach resource , with the form data of
10773: 
10774: 	'submitted'     =>'scantron' 
10775: 	'grade_target'  =>'grade',
10776: 	'grade_username'=> username of student
10777: 	'grade_domain'  => domain of student
10778: 	'grade_courseid'=> of course
10779: 	'grade_symb'    => symb of resource to grade
10780: 
10781:     This triggers a grading pass. The problem grading code takes care
10782:     of converting the bubbled letter information (now in %env) into a
10783:     valid submission.
10784: 
10785: =item  scantron_upload_scantron_data() :
10786: 
10787:     Creates the screen for adding a new bubblesheet data file to a course.
10788: 
10789: =item  scantron_upload_scantron_data_save() : 
10790: 
10791:    Adds a provided bubble information data file to the course if user
10792:    has the correct privileges to do so. 
10793: 
10794: =item  valid_file() :
10795: 
10796:    Validates that the requested bubble data file exists in the course.
10797: 
10798: =item  scantron_download_scantron_data() : 
10799: 
10800:    Shows a list of the three internal files (original, corrected,
10801:    skipped) for a specific bubblesheet data file that exists in the
10802:    course.
10803: 
10804: =item  scantron_validate_ID() : 
10805: 
10806:    Validates all scanlines in the selected file to not have any
10807:    invalid or underspecified student/employee IDs
10808: 
10809: =item navmap_errormsg() :
10810: 
10811:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
10812:    Should be called whenever the request to instantiate a navmap object fails.  
10813: 
10814: =back
10815: 
10816: =cut

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