File:  [LON-CAPA] / loncom / homework / grades.pm
Revision 1.596.2.12.2.2: download - view: text, annotated - select for diffs
Wed May 2 14:23:34 2012 UTC (12 years ago) by raeburn
Branches: version_2_11_X
Diff to branchpoint 1.596.2.12: preferred, unified
- Backport 1.662.

    1: # The LearningOnline Network with CAPA
    2: # The LON-CAPA Grading handler
    3: #
    4: # $Id: grades.pm,v 1.596.2.12.2.2 2012/05/02 14:23:34 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: 
   56: #  These variables are used to recover from ssi errors
   57: 
   58: my $ssi_retries = 5;
   59: my $ssi_error;
   60: my $ssi_error_resource;
   61: my $ssi_error_message;
   62: 
   63: 
   64: sub ssi_with_retries {
   65:     my ($resource, $retries, %form) = @_;
   66:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
   67:     if ($response->is_error) {
   68: 	$ssi_error          = 1;
   69: 	$ssi_error_resource = $resource;
   70: 	$ssi_error_message  = $response->code . " " . $response->message;
   71:     }
   72: 
   73:     return $content;
   74: 
   75: }
   76: #
   77: #  Prodcuces an ssi retry failure error message to the user:
   78: #
   79: 
   80: sub ssi_print_error {
   81:     my ($r) = @_;
   82:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
   83:     $r->print('
   84: <br />
   85: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   86: <p>
   87: '.&mt('Unable to retrieve a resource from a server:').'<br />
   88: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   89: '.&mt('Error:').' '.$ssi_error_message.'
   90: </p>
   91: <p>'.
   92: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   93: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   94: '</p>');
   95:     return;
   96: }
   97: 
   98: #
   99: # --- Retrieve the parts from the metadata file.---
  100: sub getpartlist {
  101:     my ($symb,$errorref) = @_;
  102: 
  103:     my $navmap   = Apache::lonnavmaps::navmap->new();
  104:     unless (ref($navmap)) {
  105:         if (ref($errorref)) { 
  106:             $$errorref = 'navmap';
  107:             return;
  108:         }
  109:     }
  110:     my $res      = $navmap->getBySymb($symb);
  111:     my $partlist = $res->parts();
  112:     my $url      = $res->src();
  113:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
  114: 
  115:     my @stores;
  116:     foreach my $part (@{ $partlist }) {
  117: 	foreach my $key (@metakeys) {
  118: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
  119: 	}
  120:     }
  121:     return @stores;
  122: }
  123: 
  124: # --- Get the symbolic name of a problem and the url
  125: sub get_symb {
  126:     my ($request,$silent) = @_;
  127:     (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
  128:     my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
  129:     if ($symb eq '') { 
  130: 	if (!$silent) {
  131:             $request->print(&mt("Unable to handle ambiguous references: [_1].",$url));
  132: 	    return ();
  133: 	}
  134:     }
  135:     &Apache::lonenc::check_decrypt(\$symb);
  136:     return ($symb);
  137: }
  138: 
  139: #--- Format fullname, username:domain if different for display
  140: #--- Use anywhere where the student names are listed
  141: sub nameUserString {
  142:     my ($type,$fullname,$uname,$udom) = @_;
  143:     if ($type eq 'header') {
  144: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
  145:     } else {
  146: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
  147: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
  148:     }
  149: }
  150: 
  151: #--- Get the partlist and the response type for a given problem. ---
  152: #--- Indicate if a response type is coded handgraded or not. ---
  153: sub response_type {
  154:     my ($symb,$response_error) = @_;
  155: 
  156:     my $navmap = Apache::lonnavmaps::navmap->new();
  157:     unless (ref($navmap)) {
  158:         if (ref($response_error)) {
  159:             $$response_error = 1;
  160:         }
  161:         return;
  162:     }
  163:     my $res = $navmap->getBySymb($symb);
  164:     unless (ref($res)) {
  165:         $$response_error = 1;
  166:         return;
  167:     }
  168:     my $partlist = $res->parts();
  169:     my %vPart = 
  170: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
  171:     my (%response_types,%handgrade);
  172:     foreach my $part (@{ $partlist }) {
  173: 	next if (%vPart && !exists($vPart{$part}));
  174: 
  175: 	my @types = $res->responseType($part);
  176: 	my @ids = $res->responseIds($part);
  177: 	for (my $i=0; $i < scalar(@ids); $i++) {
  178: 	    $response_types{$part}{$ids[$i]} = $types[$i];
  179: 	    $handgrade{$part.'_'.$ids[$i]} = 
  180: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
  181: 				     '.handgrade',$symb);
  182: 	}
  183:     }
  184:     return ($partlist,\%handgrade,\%response_types);
  185: }
  186: 
  187: sub flatten_responseType {
  188:     my ($responseType) = @_;
  189:     my @part_response_id =
  190: 	map { 
  191: 	    my $part = $_;
  192: 	    map {
  193: 		[$part,$_]
  194: 		} sort(keys(%{ $responseType->{$part} }));
  195: 	} sort(keys(%$responseType));
  196:     return @part_response_id;
  197: }
  198: 
  199: sub get_display_part {
  200:     my ($partID,$symb)=@_;
  201:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
  202:     if (defined($display) and $display ne '') {
  203:         $display.= ' (<span class="LC_internal_info">'
  204:                   .&mt('Part ID: [_1]',$partID).'</span>)';
  205:     } else {
  206: 	$display=$partID;
  207:     }
  208:     return $display;
  209: }
  210: 
  211: #--- Show resource title
  212: #--- and parts and response type
  213: sub showResourceInfo {
  214:     my ($symb,$probTitle,$checkboxes,$res_error) = @_;
  215:     my $result = '<h3>'.&mt('Current Resource').': '.$probTitle.'</h3>'."\n";
  216:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
  217:     if (ref($res_error)) {
  218:         if ($$res_error) {
  219:             return;
  220:         }
  221:     }
  222:     $result.=&Apache::loncommon::start_data_table()
  223:             .&Apache::loncommon::start_data_table_header_row();
  224:     if ($checkboxes) {
  225:         $result.='<th>&nbsp;</th>';
  226:     }
  227:     $result.='<th>'.&mt('Problem Part').'</th>'
  228:             .'<th>'.&mt('Res. ID').'</th>'
  229:             .'<th>'.&mt('Type').'</th>'
  230:             .&Apache::loncommon::end_data_table_header_row();
  231:     my %resptype = ();
  232:     my $hdgrade='no';
  233:     my %partsseen;
  234:     foreach my $partID (sort(keys(%$responseType))) {
  235:         foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) {
  236:             my $handgrade=$$handgrade{$partID.'_'.$resID};
  237:             my $responsetype = $responseType->{$partID}->{$resID};
  238:             $hdgrade = $handgrade if ($handgrade eq 'yes');
  239:             $result.=&Apache::loncommon::start_data_table_row();
  240:             if ($checkboxes) {
  241:                 if (exists($partsseen{$partID})) {
  242:                     $result.="<td>&nbsp;</td>";
  243:                 } else {
  244:                     $result.="<td><input type='checkbox' name='vPart' value='$partID' checked='checked' /></td>";
  245:                 }
  246:                 $partsseen{$partID}=1;
  247:             }
  248:             my $display_part=&get_display_part($partID,$symb);
  249:             $result.='<td>'.$display_part.'</td>'
  250:                     .'<td>'.'<span class="LC_internal_info">'.$resID.'</span></td>'
  251:                     .'<td>'.&mt($responsetype).'</td>'
  252: #                   .'<td>'.&mt('<b>Handgrade: </b>[_1]',$handgrade).'</td>'
  253:                     .&Apache::loncommon::end_data_table_row();
  254:         }
  255:     }
  256:     $result.=&Apache::loncommon::end_data_table();
  257:     return $result,$responseType,$hdgrade,$partlist,$handgrade;
  258: }
  259: 
  260: sub reset_caches {
  261:     &reset_analyze_cache();
  262:     &reset_perm();
  263: }
  264: 
  265: {
  266:     my %analyze_cache;
  267:     my %analyze_cache_formkeys;
  268: 
  269:     sub reset_analyze_cache {
  270: 	undef(%analyze_cache);
  271:         undef(%analyze_cache_formkeys);
  272:     }
  273: 
  274:     sub get_analyze {
  275: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
  276: 	my $key = "$symb\0$uname\0$udom";
  277:         if ($type eq 'randomizetry') {
  278:             if ($trial ne '') {
  279:                 $key .= "\0".$trial;
  280:             }
  281:         }
  282: 	if (exists($analyze_cache{$key})) {
  283:             my $getupdate = 0;
  284:             if (ref($add_to_hash) eq 'HASH') {
  285:                 foreach my $item (keys(%{$add_to_hash})) {
  286:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
  287:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
  288:                             $getupdate = 1;
  289:                             last;
  290:                         }
  291:                     } else {
  292:                         $getupdate = 1;
  293:                     }
  294:                 }
  295:             }
  296:             if (!$getupdate) {
  297:                 return $analyze_cache{$key};
  298:             }
  299:         }
  300: 
  301: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  302: 	$url=&Apache::lonnet::clutter($url);
  303:         my %form = ('grade_target'      => 'analyze',
  304:                     'grade_domain'      => $udom,
  305:                     'grade_symb'        => $symb,
  306:                     'grade_courseid'    =>  $env{'request.course.id'},
  307:                     'grade_username'    => $uname,
  308:                     'grade_noincrement' => $no_increment);
  309:         if ($bubbles_per_row ne '') {
  310:             $form{'bubbles_per_row'} = $bubbles_per_row;
  311:         }
  312:         if ($type eq 'randomizetry') {
  313:             $form{'grade_questiontype'} = $type;
  314:             if ($rndseed ne '') {
  315:                 $form{'grade_rndseed'} = $rndseed;
  316:             }
  317:         }
  318:         if (ref($add_to_hash)) {
  319:             %form = (%form,%{$add_to_hash});
  320:         }
  321: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
  322: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  323: 	my %analyze=&Apache::lonnet::str2hash($subresult);
  324:         if (ref($add_to_hash) eq 'HASH') {
  325:             $analyze_cache_formkeys{$key} = $add_to_hash;
  326:         } else {
  327:             $analyze_cache_formkeys{$key} = {};
  328:         }
  329: 	return $analyze_cache{$key} = \%analyze;
  330:     }
  331: 
  332:     sub get_order {
  333: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
  334: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
  335: 	return $analyze->{"$partid.$respid.shown"};
  336:     }
  337: 
  338:     sub get_radiobutton_correct_foil {
  339: 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
  340: 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
  341:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
  342:         if (ref($foils) eq 'ARRAY') {
  343: 	    foreach my $foil (@{$foils}) {
  344: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
  345: 		    return $foil;
  346: 	        }
  347: 	    }
  348: 	}
  349:     }
  350: 
  351:     sub scantron_partids_tograde {
  352:         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row) = @_;
  353:         my (%analysis,@parts);
  354:         if (ref($resource)) {
  355:             my $symb = $resource->symb();
  356:             my $add_to_form;
  357:             if ($check_for_randomlist) {
  358:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
  359:             }
  360:             my $analyze =
  361:                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
  362:                              undef,undef,undef,$bubbles_per_row);
  363:             if (ref($analyze) eq 'HASH') {
  364:                 %analysis = %{$analyze};
  365:             }
  366:             if (ref($analysis{'parts'}) eq 'ARRAY') {
  367:                 foreach my $part (@{$analysis{'parts'}}) {
  368:                     my ($id,$respid) = split(/\./,$part);
  369:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
  370:                         push(@parts,$part);
  371:                     }
  372:                 }
  373:             }
  374:         }
  375:         return (\%analysis,\@parts);
  376:     }
  377: 
  378: }
  379: 
  380: #--- Clean response type for display
  381: #--- Currently filters option/rank/radiobutton/match/essay/Task
  382: #        response types only.
  383: sub cleanRecord {
  384:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
  385: 	$uname,$udom,$type,$trial,$rndseed) = @_;
  386:     my $grayFont = '<span class="LC_internal_info">';
  387:     if ($response =~ /^(option|rank)$/) {
  388: 	my %answer=&Apache::lonnet::str2hash($answer);
  389: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  390: 	my ($toprow,$bottomrow);
  391: 	foreach my $foil (@$order) {
  392: 	    if ($grading{$foil} == 1) {
  393: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
  394: 	    } else {
  395: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
  396: 	    }
  397: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  398: 	}
  399: 	return '<blockquote><table border="1">'.
  400: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  401: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  402: 	    $bottomrow.'</tr></table></blockquote>';
  403:     } elsif ($response eq 'match') {
  404: 	my %answer=&Apache::lonnet::str2hash($answer);
  405: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  406: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
  407: 	my ($toprow,$middlerow,$bottomrow);
  408: 	foreach my $foil (@$order) {
  409: 	    my $item=shift(@items);
  410: 	    if ($grading{$foil} == 1) {
  411: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
  412: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
  413: 	    } else {
  414: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
  415: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
  416: 	    }
  417: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  418: 	}
  419: 	return '<blockquote><table border="1">'.
  420: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  421: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
  422: 	    $middlerow.'</tr>'.
  423: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  424: 	    $bottomrow.'</tr></table></blockquote>';
  425:     } elsif ($response eq 'radiobutton') {
  426: 	my %answer=&Apache::lonnet::str2hash($answer);
  427: 	my ($toprow,$bottomrow);
  428: 	my $correct = 
  429: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
  430: 	foreach my $foil (@$order) {
  431: 	    if (exists($answer{$foil})) {
  432: 		if ($foil eq $correct) {
  433: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
  434: 		} else {
  435: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
  436: 		}
  437: 	    } else {
  438: 		$toprow.='<td>'.&mt('false').'</td>';
  439: 	    }
  440: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  441: 	}
  442: 	return '<blockquote><table border="1">'.
  443: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  444: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  445: 	    $bottomrow.'</tr></table></blockquote>';
  446:     } elsif ($response eq 'essay') {
  447: 	if (! exists ($env{'form.'.$symb})) {
  448: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
  449: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
  450: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
  451: 
  452: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  453: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
  454: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
  455: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
  456: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
  457: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
  458: 	}
  459: 	$answer =~ s-\n-<br />-g;
  460: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
  461:     } elsif ( $response eq 'organic') {
  462: 	my $result='Smile representation: "<tt>'.$answer.'</tt>"';
  463: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
  464: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
  465: 	return $result;
  466:     } elsif ( $response eq 'Task') {
  467: 	if ( $answer eq 'SUBMITTED') {
  468: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
  469: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
  470: 	    return $result;
  471: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
  472: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
  473: 			       keys(%{$record}));
  474: 	    return join('<br />',($version,@matches));
  475: 			       
  476: 			       
  477: 	} else {
  478: 	    my $result =
  479: 		'<p>'
  480: 		.&mt('Overall result: [_1]',
  481: 		     $record->{$version."resource.$respid.$partid.status"})
  482: 		.'</p>';
  483: 	    
  484: 	    $result .= '<ul>';
  485: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
  486: 			     keys(%{$record}));
  487: 	    foreach my $grade (sort(@grade)) {
  488: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
  489: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
  490: 				     $dim, $record->{$grade}).
  491: 			  '</li>';
  492: 	    }
  493: 	    $result.='</ul>';
  494: 	    return $result;
  495: 	}
  496:     } elsif ( $response =~ m/(?:numerical|formula)/) {
  497: 	$answer = 
  498: 	    &Apache::loncommon::format_previous_attempt_value('submission',
  499: 							      $answer);
  500:     }
  501:     return $answer;
  502: }
  503: 
  504: #-- A couple of common js functions
  505: sub commonJSfunctions {
  506:     my $request = shift;
  507:     $request->print(<<COMMONJSFUNCTIONS);
  508: <script type="text/javascript" language="javascript">
  509:     function radioSelection(radioButton) {
  510: 	var selection=null;
  511: 	if (radioButton.length > 1) {
  512: 	    for (var i=0; i<radioButton.length; i++) {
  513: 		if (radioButton[i].checked) {
  514: 		    return radioButton[i].value;
  515: 		}
  516: 	    }
  517: 	} else {
  518: 	    if (radioButton.checked) return radioButton.value;
  519: 	}
  520: 	return selection;
  521:     }
  522: 
  523:     function pullDownSelection(selectOne) {
  524: 	var selection="";
  525: 	if (selectOne.length > 1) {
  526: 	    for (var i=0; i<selectOne.length; i++) {
  527: 		if (selectOne[i].selected) {
  528: 		    return selectOne[i].value;
  529: 		}
  530: 	    }
  531: 	} else {
  532:             // only one value it must be the selected one
  533: 	    return selectOne.value;
  534: 	}
  535:     }
  536: </script>
  537: COMMONJSFUNCTIONS
  538: }
  539: 
  540: #--- Dumps the class list with usernames,list of sections,
  541: #--- section, ids and fullnames for each user.
  542: sub getclasslist {
  543:     my ($getsec,$filterlist,$getgroup) = @_;
  544:     my @getsec;
  545:     my @getgroup;
  546:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  547:     if (!ref($getsec)) {
  548: 	if ($getsec ne '' && $getsec ne 'all') {
  549: 	    @getsec=($getsec);
  550: 	}
  551:     } else {
  552: 	@getsec=@{$getsec};
  553:     }
  554:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
  555:     if (!ref($getgroup)) {
  556: 	if ($getgroup ne '' && $getgroup ne 'all') {
  557: 	    @getgroup=($getgroup);
  558: 	}
  559:     } else {
  560: 	@getgroup=@{$getgroup};
  561:     }
  562:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
  563: 
  564:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
  565:     # Bail out if we were unable to get the classlist
  566:     return if (! defined($classlist));
  567:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
  568:     #
  569:     my %sections;
  570:     my %fullnames;
  571:     foreach my $student (keys(%$classlist)) {
  572:         my $end      = 
  573:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
  574:         my $start    = 
  575:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
  576:         my $id       = 
  577:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
  578:         my $section  = 
  579:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
  580:         my $fullname = 
  581:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
  582:         my $status   = 
  583:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
  584:         my $group   = 
  585:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  586: 	# filter students according to status selected
  587: 	if ($filterlist && (!($stu_status =~ /Any/))) {
  588: 	    if (!($stu_status =~ $status)) {
  589: 		delete($classlist->{$student});
  590: 		next;
  591: 	    }
  592: 	}
  593: 	# filter students according to groups selected
  594: 	my @stu_groups = split(/,/,$group);
  595: 	if (@getgroup) {
  596: 	    my $exclude = 1;
  597: 	    foreach my $grp (@getgroup) {
  598: 	        foreach my $stu_group (@stu_groups) {
  599: 	            if ($stu_group eq $grp) {
  600: 	                $exclude = 0;
  601:     	            } 
  602: 	        }
  603:     	        if (($grp eq 'none') && !$group) {
  604:         	        $exclude = 0;
  605:         	}
  606: 	    }
  607: 	    if ($exclude) {
  608: 	        delete($classlist->{$student});
  609: 	    }
  610: 	}
  611: 	$section = ($section ne '' ? $section : 'none');
  612: 	if (&canview($section)) {
  613: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  614: 		$sections{$section}++;
  615: 		if ($classlist->{$student}) {
  616: 		    $fullnames{$student}=$fullname;
  617: 		}
  618: 	    } else {
  619: 		delete($classlist->{$student});
  620: 	    }
  621: 	} else {
  622: 	    delete($classlist->{$student});
  623: 	}
  624:     }
  625:     my %seen = ();
  626:     my @sections = sort(keys(%sections));
  627:     return ($classlist,\@sections,\%fullnames);
  628: }
  629: 
  630: sub canmodify {
  631:     my ($sec)=@_;
  632:     if ($perm{'mgr'}) {
  633: 	if (!defined($perm{'mgr_section'})) {
  634: 	    # can modify whole class
  635: 	    return 1;
  636: 	} else {
  637: 	    if ($sec eq $perm{'mgr_section'}) {
  638: 		#can modify the requested section
  639: 		return 1;
  640: 	    } else {
  641: 		# can't modify the request section
  642: 		return 0;
  643: 	    }
  644: 	}
  645:     }
  646:     #can't modify
  647:     return 0;
  648: }
  649: 
  650: sub canview {
  651:     my ($sec)=@_;
  652:     if ($perm{'vgr'}) {
  653: 	if (!defined($perm{'vgr_section'})) {
  654: 	    # can modify whole class
  655: 	    return 1;
  656: 	} else {
  657: 	    if ($sec eq $perm{'vgr_section'}) {
  658: 		#can modify the requested section
  659: 		return 1;
  660: 	    } else {
  661: 		# can't modify the request section
  662: 		return 0;
  663: 	    }
  664: 	}
  665:     }
  666:     #can't modify
  667:     return 0;
  668: }
  669: 
  670: #--- Retrieve the grade status of a student for all the parts
  671: sub student_gradeStatus {
  672:     my ($symb,$udom,$uname,$partlist) = @_;
  673:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
  674:     my %partstatus = ();
  675:     foreach (@$partlist) {
  676: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  677: 	$status              = 'nothing' if ($status eq '');
  678: 	$partstatus{$_}      = $status;
  679: 	my $subkey           = "resource.$_.submitted_by";
  680: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
  681:     }
  682:     return %partstatus;
  683: }
  684: 
  685: # hidden form and javascript that calls the form
  686: # Use by verifyscript and viewgrades
  687: # Shows a student's view of problem and submission
  688: sub jscriptNform {
  689:     my ($symb) = @_;
  690:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  691:     my $jscript='<script type="text/javascript" language="javascript">'."\n".
  692: 	'    function viewOneStudent(user,domain) {'."\n".
  693: 	'	document.onestudent.student.value = user;'."\n".
  694: 	'	document.onestudent.userdom.value = domain;'."\n".
  695: 	'	document.onestudent.submit();'."\n".
  696: 	'    }'."\n".
  697: 	'</script>'."\n";
  698:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
  699: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  700: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
  701: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n".
  702: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
  703: 	'<input type="hidden" name="command" value="submission" />'."\n".
  704: 	'<input type="hidden" name="student" value="" />'."\n".
  705: 	'<input type="hidden" name="userdom" value="" />'."\n".
  706: 	'</form>'."\n";
  707:     return $jscript;
  708: }
  709: 
  710: 
  711: 
  712: # Given the score (as a number [0-1] and the weight) what is the final
  713: # point value? This function will round to the nearest tenth, third,
  714: # or quarter if one of those is within the tolerance of .00001.
  715: sub compute_points {
  716:     my ($score, $weight) = @_;
  717:     
  718:     my $tolerance = .00001;
  719:     my $points = $score * $weight;
  720: 
  721:     # Check for nearness to 1/x.
  722:     my $check_for_nearness = sub {
  723:         my ($factor) = @_;
  724:         my $num = ($points * $factor) + $tolerance;
  725:         my $floored_num = floor($num);
  726:         if ($num - $floored_num < 2 * $tolerance * $factor) {
  727:             return $floored_num / $factor;
  728:         }
  729:         return $points;
  730:     };
  731: 
  732:     $points = $check_for_nearness->(10);
  733:     $points = $check_for_nearness->(3);
  734:     $points = $check_for_nearness->(4);
  735:     
  736:     return $points;
  737: }
  738: 
  739: #------------------ End of general use routines --------------------
  740: 
  741: #
  742: # Find most similar essay
  743: #
  744: 
  745: sub most_similar {
  746:     my ($uname,$udom,$uessay,$old_essays)=@_;
  747: 
  748: # ignore spaces and punctuation
  749: 
  750:     $uessay=~s/\W+/ /gs;
  751: 
  752: # ignore empty submissions (occuring when only files are sent)
  753: 
  754:     unless ($uessay=~/\w+/s) { return ''; }
  755: 
  756: # these will be returned. Do not care if not at least 50 percent similar
  757:     my $limit=0.6;
  758:     my $sname='';
  759:     my $sdom='';
  760:     my $scrsid='';
  761:     my $sessay='';
  762: # go through all essays ...
  763:     foreach my $tkey (keys(%$old_essays)) {
  764: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  765: # ... except the same student
  766:         next if (($tname eq $uname) && ($tdom eq $udom));
  767: 	my $tessay=$old_essays->{$tkey};
  768: 	$tessay=~s/\W+/ /gs;
  769: # String similarity gives up if not even limit
  770: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  771: # Found one
  772: 	if ($tsimilar>$limit) {
  773: 	    $limit=$tsimilar;
  774: 	    $sname=$tname;
  775: 	    $sdom=$tdom;
  776: 	    $scrsid=$tcrsid;
  777: 	    $sessay=$old_essays->{$tkey};
  778: 	}
  779:     }
  780:     if ($limit>0.6) {
  781:        return ($sname,$sdom,$scrsid,$sessay,$limit);
  782:     } else {
  783:        return ('','','','',0);
  784:     }
  785: }
  786: 
  787: #-------------------------------------------------------------------
  788: 
  789: #------------------------------------ Receipt Verification Routines
  790: #
  791: #--- Check whether a receipt number is valid.---
  792: sub verifyreceipt {
  793:     my $request  = shift;
  794: 
  795:     my $courseid = $env{'request.course.id'};
  796:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
  797: 	$env{'form.receipt'};
  798:     $receipt     =~ s/[^\-\d]//g;
  799:     my ($symb)   = &get_symb($request);
  800: 
  801:     my $title.=
  802: 	'<h3><span class="LC_info">'.
  803: 	&mt('Verifying Receipt No. [_1]',$receipt).
  804: 	'</span></h3>'."\n".
  805: 	'<h4>'.&mt('<b>Resource: </b>[_1]',$env{'form.probTitle'}).
  806: 	'</h4>'."\n";
  807: 
  808:     my ($string,$contents,$matches) = ('','',0);
  809:     my (undef,undef,$fullname) = &getclasslist('all','0');
  810:     
  811:     my $receiptparts=0;
  812:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
  813: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
  814:     my $parts=['0'];
  815:     if ($receiptparts) {
  816:         my $res_error; 
  817:         ($parts)=&response_type($symb,\$res_error);
  818:         if ($res_error) {
  819:             return &navmap_errormsg();
  820:         } 
  821:     }
  822:     
  823:     my $header = 
  824: 	&Apache::loncommon::start_data_table().
  825: 	&Apache::loncommon::start_data_table_header_row().
  826: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
  827: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
  828: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
  829:     if ($receiptparts) {
  830: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
  831:     }
  832:     $header.=
  833: 	&Apache::loncommon::end_data_table_header_row();
  834: 
  835:     foreach (sort 
  836: 	     {
  837: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  838: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  839: 		 }
  840: 		 return $a cmp $b;
  841: 	     } (keys(%$fullname))) {
  842: 	my ($uname,$udom)=split(/\:/);
  843: 	foreach my $part (@$parts) {
  844: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
  845: 		$contents.=
  846: 		    &Apache::loncommon::start_data_table_row().
  847: 		    '<td>&nbsp;'."\n".
  848: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
  849: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
  850: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
  851: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
  852: 		if ($receiptparts) {
  853: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
  854: 		}
  855: 		$contents.= 
  856: 		    &Apache::loncommon::end_data_table_row()."\n";
  857: 		
  858: 		$matches++;
  859: 	    }
  860: 	}
  861:     }
  862:     if ($matches == 0) {
  863:         $string = $title
  864:                  .'<p class="LC_warning">'
  865:                  .&mt('No match found for the above receipt number.')
  866:                  .'</p>';
  867:     } else {
  868: 	$string = &jscriptNform($symb).$title.
  869: 	    '<p>'.
  870: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
  871: 	    '</p>'.
  872: 	    $header.
  873: 	    $contents.
  874: 	    &Apache::loncommon::end_data_table()."\n";
  875:     }
  876:     return $string.&show_grading_menu_form($symb);
  877: }
  878: 
  879: #--- This is called by a number of programs.
  880: #--- Called from the Grading Menu - View/Grade an individual student
  881: #--- Also called directly when one clicks on the subm button 
  882: #    on the problem page.
  883: sub listStudents {
  884:     my ($request) = shift;
  885: 
  886:     my ($symb) = &get_symb($request);
  887:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
  888:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
  889:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
  890:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
  891:     my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  892:     my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
  893:     $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
  894: 	&Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
  895: 
  896:     my $result='<h3><span class="LC_info">&nbsp;'
  897: 	.&mt("$viewgrade Submissions for a Student or a Group of Students")
  898: 	.'</span></h3>';
  899: 
  900:     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($symb,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
  901: 
  902:     my %lt = &Apache::lonlocal::texthash (
  903: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
  904: 		'single'   => 'Please select the student before clicking on the Next button.',
  905: 	     );
  906:     $request->print(<<LISTJAVASCRIPT);
  907: <script type="text/javascript" language="javascript">
  908:     function checkSelect(checkBox) {
  909: 	var ctr=0;
  910: 	var sense="";
  911: 	if (checkBox.length > 1) {
  912: 	    for (var i=0; i<checkBox.length; i++) {
  913: 		if (checkBox[i].checked) {
  914: 		    ctr++;
  915: 		}
  916: 	    }
  917: 	    sense = '$lt{'multiple'}';
  918: 	} else {
  919: 	    if (checkBox.checked) {
  920: 		ctr = 1;
  921: 	    }
  922: 	    sense = '$lt{'single'}';
  923: 	}
  924: 	if (ctr == 0) {
  925: 	    alert(sense);
  926: 	    return false;
  927: 	}
  928: 	document.gradesub.submit();
  929:     }
  930: 
  931:     function reLoadList(formname) {
  932: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
  933: 	formname.command.value = 'submission';
  934: 	formname.submit();
  935:     }
  936: </script>
  937: LISTJAVASCRIPT
  938: 
  939:     &commonJSfunctions($request);
  940:     $request->print($result);
  941: 
  942:     my $checkhdgrade = ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked="checked"' : '';
  943:     my $checklastsub = $checkhdgrade eq '' ? 'checked="checked"' : '';
  944:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
  945: 	"\n".$table;
  946: 	
  947:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
  948:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
  949:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
  950:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
  951:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
  952:                   .&Apache::lonhtmlcommon::row_closure();
  953:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
  954:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
  955:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
  956:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
  957:                   .&Apache::lonhtmlcommon::row_closure();
  958: 
  959:     my $submission_options;
  960:     if ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
  961: 	$submission_options.=
  962: 	    '<label><input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> '.&mt('essay part only').' </label>'."\n";
  963:     }
  964:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  965:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
  966:     $env{'form.Status'} = $saveStatus;
  967:     $submission_options.=
  968:         '<span class="LC_nobreak">'.
  969:         '<label><input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> '.
  970:         &mt('last submission only').' </label></span>'."\n".
  971:         '<span class="LC_nobreak">'.
  972:         '<label><input type="radio" name="lastSub" value="last" /> '.
  973:         &mt('last submission &amp; parts info').' </label></span>'."\n".
  974:         '<span class="LC_nobreak">'.
  975:         '<label><input type="radio" name="lastSub" value="datesub" /> '.
  976:         &mt('by dates and submissions').'</label></span>'."\n".
  977:         '<span class="LC_nobreak">'.
  978:         '<label><input type="radio" name="lastSub" value="all" /> '.
  979:         &mt('all details').'</label></span>';
  980:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
  981:                   .$submission_options
  982:                   .&Apache::lonhtmlcommon::row_closure();
  983: 
  984:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
  985:                   .'<select name="increment">'
  986:                   .'<option value="1">'.&mt('Whole Points').'</option>'
  987:                   .'<option value=".5">'.&mt('Half Points').'</option>'
  988:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
  989:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
  990:                   .'</select>'
  991:                   .&Apache::lonhtmlcommon::row_closure();
  992: 
  993:     $gradeTable .= 
  994:         &build_section_inputs().
  995: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
  996: 	'<input type="hidden" name="handgrade"   value="'.$env{'form.handgrade'}.'" /><br />'."\n".
  997: 	'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" /><br />'."\n".
  998: 	'<input type="hidden" name="saveState"   value="'.$env{'form.saveState'}.'" />'."\n".
  999: 	'<input type="hidden" name="probTitle"   value="'.$env{'form.probTitle'}.'" />'."\n".
 1000: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 1001: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
 1002: 
 1003:     if (exists($env{'form.gradingMenu'}) && exists($env{'form.Status'})) {
 1004: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
 1005:     } else {
 1006:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
 1007:                       .&Apache::lonhtmlcommon::StatusOptions(
 1008:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
 1009:                       .&Apache::lonhtmlcommon::row_closure();
 1010:     }
 1011: 
 1012:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
 1013:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
 1014:                   .&Apache::lonhtmlcommon::row_closure(1)
 1015:                   .&Apache::lonhtmlcommon::end_pick_box();
 1016: 
 1017:     $gradeTable .= '<p>'
 1018:                   .&mt('To '.lc($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"
 1019:                   .'<input type="hidden" name="command" value="processGroup" />'
 1020:                   .'</p>';
 1021: 
 1022: # checkall buttons
 1023:     $gradeTable.=&check_script('gradesub', 'stuinfo');
 1024:     $gradeTable.='<input type="button" '."\n".
 1025:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
 1026:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
 1027:     $gradeTable.=&check_buttons();
 1028:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
 1029:     $gradeTable.= &Apache::loncommon::start_data_table().
 1030: 	&Apache::loncommon::start_data_table_header_row();
 1031:     my $loop = 0;
 1032:     while ($loop < 2) {
 1033: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
 1034: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
 1035: 	if ($env{'form.showgrading'} eq 'yes' 
 1036: 	    && $submitonly ne 'queued'
 1037: 	    && $submitonly ne 'all') {
 1038: 	    foreach my $part (sort(@$partlist)) {
 1039: 		my $display_part=
 1040: 		    &get_display_part((split(/_/,$part))[0],$symb);
 1041: 		$gradeTable.=
 1042: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
 1043: 	    }
 1044: 	} elsif ($submitonly eq 'queued') {
 1045: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
 1046: 	}
 1047: 	$loop++;
 1048: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
 1049:     }
 1050:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
 1051: 
 1052:     my $ctr = 0;
 1053:     foreach my $student (sort 
 1054: 			 {
 1055: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 1056: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 1057: 			     }
 1058: 			     return $a cmp $b;
 1059: 			 }
 1060: 			 (keys(%$fullname))) {
 1061: 	my ($uname,$udom) = split(/:/,$student);
 1062: 
 1063: 	my %status = ();
 1064: 
 1065: 	if ($submitonly eq 'queued') {
 1066: 	    my %queue_status = 
 1067: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 1068: 							$udom,$uname);
 1069: 	    next if (!defined($queue_status{'gradingqueue'}));
 1070: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
 1071: 	}
 1072: 
 1073: 	if ($env{'form.showgrading'} eq 'yes' 
 1074: 	    && $submitonly ne 'queued'
 1075: 	    && $submitonly ne 'all') {
 1076: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
 1077: 	    my $submitted = 0;
 1078: 	    my $graded = 0;
 1079: 	    my $incorrect = 0;
 1080: 	    foreach (keys(%status)) {
 1081: 		$submitted = 1 if ($status{$_} ne 'nothing');
 1082: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
 1083: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
 1084: 		
 1085: 		my ($foo,$partid,$foo1) = split(/\./,$_);
 1086: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 1087: 		    $submitted = 0;
 1088: 		    my ($part)=split(/\./,$partid);
 1089: 		    $gradeTable.='<input type="hidden" name="'.
 1090: 			$student.':'.$part.':submitted_by" value="'.
 1091: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
 1092: 		}
 1093: 	    }
 1094: 	    
 1095: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 1096: 				     $submitonly eq 'incorrect' ||
 1097: 				     $submitonly eq 'graded'));
 1098: 	    next if (!$graded && ($submitonly eq 'graded'));
 1099: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 1100: 	}
 1101: 
 1102: 	$ctr++;
 1103: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
 1104:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
 1105: 	if ( $perm{'vgr'} eq 'F' ) {
 1106: 	    if ($ctr%2 ==1) {
 1107: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
 1108: 	    }
 1109: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
 1110:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
 1111:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
 1112: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
 1113: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
 1114: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
 1115: 
 1116: 	    if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
 1117: 		foreach (sort(keys(%status))) {
 1118: 		    next if ($_ =~ /^resource.*?submitted_by$/);
 1119: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
 1120: 		}
 1121: 	    }
 1122: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
 1123: 	    if ($ctr%2 ==0) {
 1124: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
 1125: 	    }
 1126: 	}
 1127:     }
 1128:     if ($ctr%2 ==1) {
 1129: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
 1130: 	    if ($env{'form.showgrading'} eq 'yes' 
 1131: 		&& $submitonly ne 'queued'
 1132: 		&& $submitonly ne 'all') {
 1133: 		foreach (@$partlist) {
 1134: 		    $gradeTable.='<td>&nbsp;</td>';
 1135: 		}
 1136: 	    } elsif ($submitonly eq 'queued') {
 1137: 		$gradeTable.='<td>&nbsp;</td>';
 1138: 	    }
 1139: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
 1140:     }
 1141: 
 1142:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
 1143:         '<input type="button" '.
 1144:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
 1145:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
 1146:     if ($ctr == 0) {
 1147: 	my $num_students=(scalar(keys(%$fullname)));
 1148: 	if ($num_students eq 0) {
 1149: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
 1150: 	} else {
 1151: 	    my $submissions='submissions';
 1152: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
 1153: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 1154: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 1155: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
 1156: 		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
 1157: 		    $num_students).
 1158: 		'</span><br />';
 1159: 	}
 1160:     } elsif ($ctr == 1) {
 1161: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
 1162:     }
 1163:     $gradeTable.=&show_grading_menu_form($symb);
 1164:     $request->print($gradeTable);
 1165:     return '';
 1166: }
 1167: 
 1168: #---- Called from the listStudents routine
 1169: 
 1170: sub check_script {
 1171:     my ($form, $type)=@_;
 1172:     my $chkallscript='<script type="text/javascript">
 1173:     function checkall() {
 1174:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1175:             ele = document.forms.'.$form.'.elements[i];
 1176:             if (ele.name == "'.$type.'") {
 1177:             document.forms.'.$form.'.elements[i].checked=true;
 1178:                                        }
 1179:         }
 1180:     }
 1181: 
 1182:     function checksec() {
 1183:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1184:             ele = document.forms.'.$form.'.elements[i];
 1185:            string = document.forms.'.$form.'.chksec.value;
 1186:            if
 1187:           (ele.value.indexOf(":::SECTION"+string)>0) {
 1188:               document.forms.'.$form.'.elements[i].checked=true;
 1189:             }
 1190:         }
 1191:     }
 1192: 
 1193: 
 1194:     function uncheckall() {
 1195:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1196:             ele = document.forms.'.$form.'.elements[i];
 1197:             if (ele.name == "'.$type.'") {
 1198:             document.forms.'.$form.'.elements[i].checked=false;
 1199:                                        }
 1200:         }
 1201:     }
 1202: 
 1203: </script>'."\n";
 1204:     return $chkallscript;
 1205: }
 1206: 
 1207: sub check_buttons {
 1208:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
 1209:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
 1210:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
 1211:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
 1212:     return $buttons;
 1213: }
 1214: 
 1215: #     Displays the submissions for one student or a group of students
 1216: sub processGroup {
 1217:     my ($request)  = shift;
 1218:     my $ctr        = 0;
 1219:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1220:     my $total      = scalar(@stuchecked)-1;
 1221: 
 1222:     foreach my $student (@stuchecked) {
 1223: 	my ($uname,$udom,$fullname) = split(/:/,$student);
 1224: 	$env{'form.student'}        = $uname;
 1225: 	$env{'form.userdom'}        = $udom;
 1226: 	$env{'form.fullname'}       = $fullname;
 1227: 	&submission($request,$ctr,$total);
 1228: 	$ctr++;
 1229:     }
 1230:     return '';
 1231: }
 1232: 
 1233: #------------------------------------------------------------------------------------
 1234: #
 1235: #-------------------------- Next few routines handles grading by student, essentially
 1236: #                           handles essay response type problem/part
 1237: #
 1238: #--- Javascript to handle the submission page functionality ---
 1239: sub sub_page_js {
 1240:     my $request = shift;
 1241: 	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 1242:     $request->print(<<SUBJAVASCRIPT);
 1243: <script type="text/javascript" language="javascript">
 1244:     function updateRadio(formname,id,weight) {
 1245: 	var gradeBox = formname["GD_BOX"+id];
 1246: 	var radioButton = formname["RADVAL"+id];
 1247: 	var oldpts = formname["oldpts"+id].value;
 1248: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
 1249: 	gradeBox.value = pts;
 1250: 	var resetbox = false;
 1251: 	if (isNaN(pts) || pts < 0) {
 1252: 	    alert("$alertmsg"+pts);
 1253: 	    for (var i=0; i<radioButton.length; i++) {
 1254: 		if (radioButton[i].checked) {
 1255: 		    gradeBox.value = i;
 1256: 		    resetbox = true;
 1257: 		}
 1258: 	    }
 1259: 	    if (!resetbox) {
 1260: 		formtextbox.value = "";
 1261: 	    }
 1262: 	    return;
 1263: 	}
 1264: 
 1265: 	if (pts > weight) {
 1266: 	    var resp = confirm("You entered a value ("+pts+
 1267: 			       ") greater than the weight for the part. Accept?");
 1268: 	    if (resp == false) {
 1269: 		gradeBox.value = oldpts;
 1270: 		return;
 1271: 	    }
 1272: 	}
 1273: 
 1274: 	for (var i=0; i<radioButton.length; i++) {
 1275: 	    radioButton[i].checked=false;
 1276: 	    if (pts == i && pts != "") {
 1277: 		radioButton[i].checked=true;
 1278: 	    }
 1279: 	}
 1280: 	updateSelect(formname,id);
 1281: 	formname["stores"+id].value = "0";
 1282:     }
 1283: 
 1284:     function writeBox(formname,id,pts) {
 1285: 	var gradeBox = formname["GD_BOX"+id];
 1286: 	if (checkSolved(formname,id) == 'update') {
 1287: 	    gradeBox.value = pts;
 1288: 	} else {
 1289: 	    var oldpts = formname["oldpts"+id].value;
 1290: 	    gradeBox.value = oldpts;
 1291: 	    var radioButton = formname["RADVAL"+id];
 1292: 	    for (var i=0; i<radioButton.length; i++) {
 1293: 		radioButton[i].checked=false;
 1294: 		if (i == oldpts) {
 1295: 		    radioButton[i].checked=true;
 1296: 		}
 1297: 	    }
 1298: 	}
 1299: 	formname["stores"+id].value = "0";
 1300: 	updateSelect(formname,id);
 1301: 	return;
 1302:     }
 1303: 
 1304:     function clearRadBox(formname,id) {
 1305: 	if (checkSolved(formname,id) == 'noupdate') {
 1306: 	    updateSelect(formname,id);
 1307: 	    return;
 1308: 	}
 1309: 	gradeSelect = formname["GD_SEL"+id];
 1310: 	for (var i=0; i<gradeSelect.length; i++) {
 1311: 	    if (gradeSelect[i].selected) {
 1312: 		var selectx=i;
 1313: 	    }
 1314: 	}
 1315: 	var stores = formname["stores"+id];
 1316: 	if (selectx == stores.value) { return };
 1317: 	var gradeBox = formname["GD_BOX"+id];
 1318: 	gradeBox.value = "";
 1319: 	var radioButton = formname["RADVAL"+id];
 1320: 	for (var i=0; i<radioButton.length; i++) {
 1321: 	    radioButton[i].checked=false;
 1322: 	}
 1323: 	stores.value = selectx;
 1324:     }
 1325: 
 1326:     function checkSolved(formname,id) {
 1327: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
 1328: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
 1329: 	    if (!reply) {return "noupdate";}
 1330: 	    formname.overRideScore.value = 'yes';
 1331: 	}
 1332: 	return "update";
 1333:     }
 1334: 
 1335:     function updateSelect(formname,id) {
 1336: 	formname["GD_SEL"+id][0].selected = true;
 1337: 	return;
 1338:     }
 1339: 
 1340: //=========== Check that a point is assigned for all the parts  ============
 1341:     function checksubmit(formname,val,total,parttot) {
 1342: 	formname.gradeOpt.value = val;
 1343: 	if (val == "Save & Next") {
 1344: 	    for (i=0;i<=total;i++) {
 1345: 		for (j=0;j<parttot;j++) {
 1346: 		    var partid = formname["partid"+i+"_"+j].value;
 1347: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1348: 			var points = formname["GD_BOX"+i+"_"+partid].value;
 1349: 			if (points == "") {
 1350: 			    var name = formname["name"+i].value;
 1351: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
 1352: 			    var resp = confirm("You did not assign a score for "+studentID+
 1353: 					       ", part "+partid+". Continue?");
 1354: 			    if (resp == false) {
 1355: 				formname["GD_BOX"+i+"_"+partid].focus();
 1356: 				return false;
 1357: 			    }
 1358: 			}
 1359: 		    }
 1360: 		    
 1361: 		}
 1362: 	    }
 1363: 	    
 1364: 	}
 1365: 	if (val == "Grade Student") {
 1366: 	    formname.showgrading.value = "yes";
 1367: 	    if (formname.Status.value == "") {
 1368: 		formname.Status.value = "Active";
 1369: 	    }
 1370: 	    formname.studentNo.value = total;
 1371: 	}
 1372: 	formname.submit();
 1373:     }
 1374: 
 1375: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
 1376:     function checkSubmitPage(formname,total) {
 1377: 	noscore = new Array(100);
 1378: 	var ptr = 0;
 1379: 	for (i=1;i<total;i++) {
 1380: 	    var partid = formname["q_"+i].value;
 1381: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1382: 		var points = formname["GD_BOX"+i+"_"+partid].value;
 1383: 		var status = formname["solved"+i+"_"+partid].value;
 1384: 		if (points == "" && status != "correct_by_student") {
 1385: 		    noscore[ptr] = i;
 1386: 		    ptr++;
 1387: 		}
 1388: 	    }
 1389: 	}
 1390: 	if (ptr != 0) {
 1391: 	    var sense = ptr == 1 ? ": " : "s: ";
 1392: 	    var prolist = "";
 1393: 	    if (ptr == 1) {
 1394: 		prolist = noscore[0];
 1395: 	    } else {
 1396: 		var i = 0;
 1397: 		while (i < ptr-1) {
 1398: 		    prolist += noscore[i]+", ";
 1399: 		    i++;
 1400: 		}
 1401: 		prolist += "and "+noscore[i];
 1402: 	    }
 1403: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
 1404: 	    if (resp == false) {
 1405: 		return false;
 1406: 	    }
 1407: 	}
 1408: 
 1409: 	formname.submit();
 1410:     }
 1411: </script>
 1412: SUBJAVASCRIPT
 1413: }
 1414: 
 1415: #--- javascript for essay type problem --
 1416: sub sub_page_kw_js {
 1417:     my $request = shift;
 1418:     my $iconpath = $request->dir_config('lonIconsURL');
 1419:     &commonJSfunctions($request);
 1420: 
 1421:     my $inner_js_msg_central=<<INNERJS;
 1422:     <script text="text/javascript">
 1423:     function checkInput() {
 1424:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
 1425:       var nmsg   = opener.document.SCORE.savemsgN.value;
 1426:       var usrctr = document.msgcenter.usrctr.value;
 1427:       var newval = opener.document.SCORE["newmsg"+usrctr];
 1428:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
 1429: 
 1430:       var msgchk = "";
 1431:       if (document.msgcenter.subchk.checked) {
 1432:          msgchk = "msgsub,";
 1433:       }
 1434:       var includemsg = 0;
 1435:       for (var i=1; i<=nmsg; i++) {
 1436:           var opnmsg = opener.document.SCORE["savemsg"+i];
 1437:           var frmmsg = document.msgcenter["msg"+i];
 1438:           opnmsg.value = opener.checkEntities(frmmsg.value);
 1439:           var showflg = opener.document.SCORE["shownOnce"+i];
 1440:           showflg.value = "1";
 1441:           var chkbox = document.msgcenter["msgn"+i];
 1442:           if (chkbox.checked) {
 1443:              msgchk += "savemsg"+i+",";
 1444:              includemsg = 1;
 1445:           }
 1446:       }
 1447:       if (document.msgcenter.newmsgchk.checked) {
 1448:          msgchk += "newmsg"+usrctr;
 1449:          includemsg = 1;
 1450:       }
 1451:       imgformname = opener.document.SCORE["mailicon"+usrctr];
 1452:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
 1453:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
 1454:       includemsg.value = msgchk;
 1455: 
 1456:       self.close()
 1457: 
 1458:     }
 1459:     </script>
 1460: INNERJS
 1461: 
 1462:     my $inner_js_highlight_central=<<INNERJS;
 1463:  <script type="text/javascript">
 1464:     function updateChoice(flag) {
 1465:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
 1466:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
 1467:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
 1468:       opener.document.SCORE.refresh.value = "on";
 1469:       if (opener.document.SCORE.keywords.value!=""){
 1470:          opener.document.SCORE.submit();
 1471:       }
 1472:       self.close()
 1473:     }
 1474: </script>
 1475: INNERJS
 1476: 
 1477:     my $start_page_msg_central = 
 1478:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 1479: 				       {'js_ready'  => 1,
 1480: 					'only_body' => 1,
 1481: 					'bgcolor'   =>'#FFFFFF',});
 1482:     my $end_page_msg_central = 
 1483: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1484: 
 1485: 
 1486:     my $start_page_highlight_central = 
 1487:         &Apache::loncommon::start_page('Highlight Central',
 1488: 				       $inner_js_highlight_central,
 1489: 				       {'js_ready'  => 1,
 1490: 					'only_body' => 1,
 1491: 					'bgcolor'   =>'#FFFFFF',});
 1492:     my $end_page_highlight_central = 
 1493: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1494: 
 1495:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
 1496:     $docopen=~s/^document\.//;
 1497:     my %lt = &Apache::lonlocal::texthash(
 1498:                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
 1499:                 plse => 'Please select a word or group of words from document and then click this link.',
 1500:                 adds => 'Add selection to keyword list? Edit if desired.',
 1501:                 comp => 'Compose Message for: ',
 1502:                 incl => 'Include',
 1503:                 type => 'Type',
 1504:                 subj => 'Subject',
 1505:                 mesa => 'Message',
 1506:                 new  => 'New',
 1507:                 save => 'Save',
 1508:                 canc => 'Cancel',
 1509:                 kehi => 'Keyword Highlight Options',
 1510:                 txtc => 'Text Color',
 1511:                 font => 'Font Size',
 1512:                 fnst => 'Font Style',
 1513:              );
 1514:     $request->print(<<SUBJAVASCRIPT);
 1515: <script type="text/javascript" language="javascript">
 1516: 
 1517: //===================== Show list of keywords ====================
 1518:   function keywords(formname) {
 1519:     var nret = prompt("$lt{'keyw'}",formname.keywords.value);
 1520:     if (nret==null) return;
 1521:     formname.keywords.value = nret;
 1522: 
 1523:     if (formname.keywords.value != "") {
 1524: 	formname.refresh.value = "on";
 1525: 	formname.submit();
 1526:     }
 1527:     return;
 1528:   }
 1529: 
 1530: //===================== Script to view submitted by ==================
 1531:   function viewSubmitter(submitter) {
 1532:     document.SCORE.refresh.value = "on";
 1533:     document.SCORE.NCT.value = "1";
 1534:     document.SCORE.unamedom0.value = submitter;
 1535:     document.SCORE.submit();
 1536:     return;
 1537:   }
 1538: 
 1539: //===================== Script to add keyword(s) ==================
 1540:   function getSel() {
 1541:     if (document.getSelection) txt = document.getSelection();
 1542:     else if (document.selection) txt = document.selection.createRange().text;
 1543:     else return;
 1544:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
 1545:     if (cleantxt=="") {
 1546: 	alert("$lt{'plse'}");
 1547: 	return;
 1548:     }
 1549:     var nret = prompt("$lt{'adds'}",cleantxt);
 1550:     if (nret==null) return;
 1551:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
 1552:     if (document.SCORE.keywords.value != "") {
 1553: 	document.SCORE.refresh.value = "on";
 1554: 	document.SCORE.submit();
 1555:     }
 1556:     return;
 1557:   }
 1558: 
 1559: //====================== Script for composing message ==============
 1560:    // preload images
 1561:    img1 = new Image();
 1562:    img1.src = "$iconpath/mailbkgrd.gif";
 1563:    img2 = new Image();
 1564:    img2.src = "$iconpath/mailto.gif";
 1565: 
 1566:   function msgCenter(msgform,usrctr,fullname) {
 1567:     var Nmsg  = msgform.savemsgN.value;
 1568:     savedMsgHeader(Nmsg,usrctr,fullname);
 1569:     var subject = msgform.msgsub.value;
 1570:     var msgchk = document.SCORE["includemsg"+usrctr].value;
 1571:     re = /msgsub/;
 1572:     var shwsel = "";
 1573:     if (re.test(msgchk)) { shwsel = "checked" }
 1574:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
 1575:     displaySubject(checkEntities(subject),shwsel);
 1576:     for (var i=1; i<=Nmsg; i++) {
 1577: 	var testmsg = "savemsg"+i+",";
 1578: 	re = new RegExp(testmsg,"g");
 1579: 	shwsel = "";
 1580: 	if (re.test(msgchk)) { shwsel = "checked" }
 1581: 	var message = document.SCORE["savemsg"+i].value;
 1582: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
 1583: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
 1584: 	                                   //any &lt; is already converted to <, etc. However, only once!!
 1585:     }
 1586:     newmsg = document.SCORE["newmsg"+usrctr].value;
 1587:     shwsel = "";
 1588:     re = /newmsg/;
 1589:     if (re.test(msgchk)) { shwsel = "checked" }
 1590:     newMsg(newmsg,shwsel);
 1591:     msgTail(); 
 1592:     return;
 1593:   }
 1594: 
 1595:   function checkEntities(strx) {
 1596:     if (strx.length == 0) return strx;
 1597:     var orgStr = ["&", "<", ">", '"']; 
 1598:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
 1599:     var counter = 0;
 1600:     while (counter < 4) {
 1601: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
 1602: 	counter++;
 1603:     }
 1604:     return strx;
 1605:   }
 1606: 
 1607:   function strReplace(strx, orgStr, newStr) {
 1608:     return strx.split(orgStr).join(newStr);
 1609:   }
 1610: 
 1611:   function savedMsgHeader(Nmsg,usrctr,fullname) {
 1612:     var height = 70*Nmsg+250;
 1613:     var scrollbar = "no";
 1614:     if (height > 600) {
 1615: 	height = 600;
 1616: 	scrollbar = "yes";
 1617:     }
 1618:     var xpos = (screen.width-600)/2;
 1619:     xpos = (xpos < 0) ? '0' : xpos;
 1620:     var ypos = (screen.height-height)/2-30;
 1621:     ypos = (ypos < 0) ? '0' : ypos;
 1622: 
 1623:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
 1624:     pWin.focus();
 1625:     pDoc = pWin.document;
 1626:     pDoc.$docopen;
 1627:     pDoc.write('$start_page_msg_central');
 1628: 
 1629:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
 1630:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
 1631:     pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'comp'}\"+fullname+\"<\\/span><\\/h3><br /><br />");
 1632: 
 1633:     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1634:     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1635:     pDoc.write("<td><b>$lt{'type'}<\\/b><\\/td><td><b>$lt{'incl'}<\\/b><\\/td><td><b>$lt{'mesa'}<\\/td><\\/tr>");
 1636: }
 1637:     function displaySubject(msg,shwsel) {
 1638:     pDoc = pWin.document;
 1639:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1640:     pDoc.write("<td>$lt{'subj'}<\\/td>");
 1641:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1642:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 1643: }
 1644: 
 1645:   function displaySavedMsg(ctr,msg,shwsel) {
 1646:     pDoc = pWin.document;
 1647:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1648:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
 1649:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1650:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 1651: }
 1652: 
 1653:   function newMsg(newmsg,shwsel) {
 1654:     pDoc = pWin.document;
 1655:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1656:     pDoc.write("<td align=\\"center\\">$lt{'new'}<\\/td>");
 1657:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1658:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 1659: }
 1660: 
 1661:   function msgTail() {
 1662:     pDoc = pWin.document;
 1663:     pDoc.write("<\\/table>");
 1664:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1665:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
 1666:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1667:     pDoc.write("<\\/form>");
 1668:     pDoc.write('$end_page_msg_central');
 1669:     pDoc.close();
 1670: }
 1671: 
 1672: //====================== Script for keyword highlight options ==============
 1673:   function kwhighlight() {
 1674:     var kwclr    = document.SCORE.kwclr.value;
 1675:     var kwsize   = document.SCORE.kwsize.value;
 1676:     var kwstyle  = document.SCORE.kwstyle.value;
 1677:     var redsel = "";
 1678:     var grnsel = "";
 1679:     var blusel = "";
 1680:     if (kwclr=="red")   {var redsel="checked"};
 1681:     if (kwclr=="green") {var grnsel="checked"};
 1682:     if (kwclr=="blue")  {var blusel="checked"};
 1683:     var sznsel = "";
 1684:     var sz1sel = "";
 1685:     var sz2sel = "";
 1686:     if (kwsize=="0")  {var sznsel="checked"};
 1687:     if (kwsize=="+1") {var sz1sel="checked"};
 1688:     if (kwsize=="+2") {var sz2sel="checked"};
 1689:     var synsel = "";
 1690:     var syisel = "";
 1691:     var sybsel = "";
 1692:     if (kwstyle=="")    {var synsel="checked"};
 1693:     if (kwstyle=="<i>") {var syisel="checked"};
 1694:     if (kwstyle=="<b>") {var sybsel="checked"};
 1695:     highlightCentral();
 1696:     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
 1697:     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
 1698:     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
 1699:     highlightend();
 1700:     return;
 1701:   }
 1702: 
 1703:   function highlightCentral() {
 1704: //    if (window.hwdWin) window.hwdWin.close();
 1705:     var xpos = (screen.width-400)/2;
 1706:     xpos = (xpos < 0) ? '0' : xpos;
 1707:     var ypos = (screen.height-330)/2-30;
 1708:     ypos = (ypos < 0) ? '0' : ypos;
 1709: 
 1710:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
 1711:     hwdWin.focus();
 1712:     var hDoc = hwdWin.document;
 1713:     hDoc.$docopen;
 1714:     hDoc.write('$start_page_highlight_central');
 1715:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
 1716:     hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'kehi'}<\\/span><\\/h3><br /><br />");
 1717: 
 1718:     hDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1719:     hDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1720:     hDoc.write("<td><b>$lt{'txtc'}<\\/b><\\/td><td><b>$lt{'font'}<\\/b><\\/td><td><b>$lt{'fnst'}<\\/td><\\/tr>");
 1721:   }
 1722: 
 1723:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
 1724:     var hDoc = hwdWin.document;
 1725:     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1726:     hDoc.write("<td align=\\"left\\">");
 1727:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"<\\/td>");
 1728:     hDoc.write("<td align=\\"left\\">");
 1729:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"<\\/td>");
 1730:     hDoc.write("<td align=\\"left\\">");
 1731:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"<\\/td>");
 1732:     hDoc.write("<\\/tr>");
 1733:   }
 1734: 
 1735:   function highlightend() { 
 1736:     var hDoc = hwdWin.document;
 1737:     hDoc.write("<\\/table>");
 1738:     hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1739:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
 1740:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1741:     hDoc.write("<\\/form>");
 1742:     hDoc.write('$end_page_highlight_central');
 1743:     hDoc.close();
 1744:   }
 1745: 
 1746: </script>
 1747: SUBJAVASCRIPT
 1748: }
 1749: 
 1750: sub get_increment {
 1751:     my $increment = $env{'form.increment'};
 1752:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
 1753:         $increment != .1) {
 1754:         $increment = 1;
 1755:     }
 1756:     return $increment;
 1757: }
 1758: 
 1759: sub gradeBox_start {
 1760:     return (
 1761:         &Apache::loncommon::start_data_table()
 1762:        .&Apache::loncommon::start_data_table_header_row()
 1763:        .'<th>'.&mt('Part').'</th>'
 1764:        .'<th>'.&mt('Points').'</th>'
 1765:        .'<th>&nbsp;</th>'
 1766:        .'<th>'.&mt('Assign Grade').'</th>'
 1767:        .'<th>'.&mt('Weight').'</th>'
 1768:        .'<th>'.&mt('Grade Status').'</th>'
 1769:        .&Apache::loncommon::end_data_table_header_row()
 1770:     );
 1771: }
 1772: 
 1773: sub gradeBox_end {
 1774:     return (
 1775:         &Apache::loncommon::end_data_table()
 1776:     );
 1777: }
 1778: #--- displays the grading box, used in essay type problem and grading by page/sequence
 1779: sub gradeBox {
 1780:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
 1781:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1782: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 1783:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
 1784:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
 1785:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
 1786:     $wgt       = ($wgt > 0 ? $wgt : '1');
 1787:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 1788: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
 1789:     my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
 1790:     my $display_part= &get_display_part($partid,$symb);
 1791:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 1792: 				       [$partid]);
 1793:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
 1794:     if ($last_resets{$partid}) {
 1795:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
 1796:     }
 1797:     $result.=&Apache::loncommon::start_data_table_row();
 1798:     my $ctr = 0;
 1799:     my $thisweight = 0;
 1800:     my $increment = &get_increment();
 1801: 
 1802:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
 1803:     while ($thisweight<=$wgt) {
 1804: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
 1805:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
 1806: 	    $thisweight.')" value="'.$thisweight.'" '.
 1807: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
 1808: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 1809:         $thisweight += $increment;
 1810: 	$ctr++;
 1811:     }
 1812:     $radio.='</tr></table>';
 1813: 
 1814:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
 1815: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
 1816: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
 1817: 	$wgt.')" /></td>'."\n";
 1818:     $line.='<td>/'.$wgt.' '.$wgtmsg.
 1819: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
 1820: 	' </td>'."\n";
 1821:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
 1822: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
 1823:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
 1824: 	$line.='<option></option>'.
 1825: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
 1826:     } else {
 1827: 	$line.='<option selected="selected"></option>'.
 1828: 	    '<option value="excused" >'.&mt('excused').'</option>';
 1829:     }
 1830:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
 1831: 
 1832: 
 1833:     $result .= 
 1834: 	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
 1835:     $result.=&Apache::loncommon::end_data_table_row();
 1836:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 1837: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 1838: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
 1839: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
 1840:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
 1841:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
 1842:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
 1843:         $aggtries.'" />'."\n";
 1844:     my $res_error;
 1845:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
 1846:     if ($res_error) {
 1847:         return &navmap_errormsg();
 1848:     }
 1849:     return $result;
 1850: }
 1851: 
 1852: sub handback_box {
 1853:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error) = @_;
 1854:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
 1855:     my (@respids);
 1856:     my @part_response_id = &flatten_responseType($responseType);
 1857:     foreach my $part_response_id (@part_response_id) {
 1858:     	my ($part,$resp) = @{ $part_response_id };
 1859:         if ($part eq $partid) {
 1860:             push(@respids,$resp);
 1861:         }
 1862:     }
 1863:     my $result;
 1864:     foreach my $respid (@respids) {
 1865: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 1866: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 1867: 	next if (!@$files);
 1868: 	my $file_counter = 0;
 1869: 	foreach my $file (@$files) {
 1870: 	    if ($file =~ /\/portfolio\//) {
 1871:                 $file_counter++;
 1872:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
 1873:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
 1874:     	        $file_disp = "$name.$ext";
 1875:     	        $file = $file_path.$file_disp;
 1876:     	        $result.=&mt('Return commented version of [_1] to student.',
 1877:     			 '<span class="LC_filename">'.$file_disp.'</span>');
 1878:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
 1879:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
 1880: 	    }
 1881: 	}
 1882:         if ($file_counter) {
 1883:             $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
 1884:                        '<span class="LC_info">'.
 1885:                        '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
 1886:         }
 1887:     }
 1888:     return $result;    
 1889: }
 1890: 
 1891: sub show_problem {
 1892:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
 1893:     my $rendered;
 1894:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
 1895:     &Apache::lonxml::remember_problem_counter();
 1896:     if ($mode eq 'both' or $mode eq 'text') {
 1897: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
 1898: 						       $env{'request.course.id'},
 1899: 						       undef,\%form);
 1900:     }
 1901:     if ($removeform) {
 1902: 	$rendered=~s|<form(.*?)>||g;
 1903: 	$rendered=~s|</form>||g;
 1904: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
 1905:     }
 1906:     my $companswer;
 1907:     if ($mode eq 'both' or $mode eq 'answer') {
 1908: 	&Apache::lonxml::restore_problem_counter();
 1909: 	$companswer=
 1910: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
 1911: 						    $env{'request.course.id'},
 1912: 						    %form);
 1913:     }
 1914:     if ($removeform) {
 1915: 	$companswer=~s|<form(.*?)>||g;
 1916: 	$companswer=~s|</form>||g;
 1917: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
 1918:     }
 1919:     $rendered=
 1920:         '<div class="LC_Box">'
 1921:        .'<h3 class="LC_hcell">'.&mt('View of the problem').'</h3>'
 1922:        .$rendered
 1923:        .'</div>';
 1924:     $companswer=
 1925:         '<div class="LC_Box">'
 1926:        .'<h3 class="LC_hcell">'.&mt('Correct answer').'</h3>'
 1927:        .$companswer
 1928:        .'</div>';
 1929:     my $result;
 1930:     if ($mode eq 'both') {
 1931:         $result=$rendered.$companswer;
 1932:     } elsif ($mode eq 'text') {
 1933:         $result=$rendered;
 1934:     } elsif ($mode eq 'answer') {
 1935:         $result=$companswer;
 1936:     }
 1937:     return $result;
 1938: }
 1939: 
 1940: sub files_exist {
 1941:     my ($r, $symb) = @_;
 1942:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1943: 
 1944:     foreach my $student (@students) {
 1945:         my ($uname,$udom,$fullname) = split(/:/,$student);
 1946:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 1947: 					      $udom,$uname);
 1948:         my ($string,$timestamp)= &get_last_submission(\%record);
 1949:         foreach my $submission (@$string) {
 1950:             my ($partid,$respid) =
 1951: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 1952:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
 1953: 					   \%record);
 1954:             return 1 if (@$files);
 1955:         }
 1956:     }
 1957:     return 0;
 1958: }
 1959: 
 1960: sub download_all_link {
 1961:     my ($r,$symb) = @_;
 1962:     my $all_students = 
 1963: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
 1964: 
 1965:     my $parts =
 1966: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
 1967: 
 1968:     my $identifier = &Apache::loncommon::get_cgi_id();
 1969:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
 1970:                              'cgi.'.$identifier.'.symb' => $symb,
 1971:                              'cgi.'.$identifier.'.parts' => $parts,});
 1972:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
 1973: 	      &mt('Download All Submitted Documents').'</a>');
 1974:     return
 1975: }
 1976: 
 1977: sub build_section_inputs {
 1978:     my $section_inputs;
 1979:     if ($env{'form.section'} eq '') {
 1980:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
 1981:     } else {
 1982:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
 1983:         foreach my $section (@sections) {
 1984:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
 1985:         }
 1986:     }
 1987:     return $section_inputs;
 1988: }
 1989: 
 1990: # --------------------------- show submissions of a student, option to grade 
 1991: sub submission {
 1992:     my ($request,$counter,$total) = @_;
 1993:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
 1994:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
 1995:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 1996:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 1997:     my $symb = &get_symb($request); 
 1998:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 1999: 
 2000:     if (!&canview($usec)) {
 2001: 	$request->print('<span class="LC_warning">Unable to view requested student.('.
 2002: 			$uname.':'.$udom.' in section '.$usec.' in course id '.
 2003: 			$env{'request.course.id'}.')</span>');
 2004: 	$request->print(&show_grading_menu_form($symb));
 2005: 	return;
 2006:     }
 2007: 
 2008:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
 2009:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
 2010:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
 2011:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 2012:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 2013: 	'" src="'.$request->dir_config('lonIconsURL').
 2014: 	'/check.gif" height="16" border="0" />';
 2015: 
 2016:     my %old_essays;
 2017:     # header info
 2018:     if ($counter == 0) {
 2019: 	&sub_page_js($request);
 2020: 	&sub_page_kw_js($request) if ($env{'form.handgrade'} eq 'yes');
 2021: 	$env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
 2022: 	    &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
 2023: 	if ($env{'form.handgrade'} eq 'yes' && &files_exist($request, $symb)) {
 2024: 	    &download_all_link($request, $symb);
 2025: 	}
 2026: 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
 2027: 			'<h4>&nbsp;'.&mt('<b>Resource: </b> [_1]',$env{'form.probTitle'}).'</h4>'."\n");
 2028: 
 2029: 	# option to display problem, only once else it cause problems 
 2030:         # with the form later since the problem has a form.
 2031: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
 2032: 	    my $mode;
 2033: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
 2034: 		$mode='both';
 2035: 	    } elsif ($env{'form.vProb'} eq 'yes') {
 2036: 		$mode='text';
 2037: 	    } elsif ($env{'form.vAns'} eq 'yes') {
 2038: 		$mode='answer';
 2039: 	    }
 2040: 	    &Apache::lonxml::clear_problem_counter();
 2041: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 2042: 	}
 2043: 
 2044: 	# kwclr is the only variable that is guaranteed to be non blank 
 2045:         # if this subroutine has been called once.
 2046: 	my %keyhash = ();
 2047: 	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
 2048: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 2049: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 2050: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
 2051: 
 2052: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2053: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 2054: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 2055: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 2056: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 2057: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
 2058: 		$keyhash{$symb.'_subject'} : $env{'form.probTitle'};
 2059: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 2060: 	}
 2061: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 2062: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 2063: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
 2064: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
 2065: 			'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 2066: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
 2067: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
 2068: 			'<input type="hidden" name="probTitle"  value="'.$env{'form.probTitle'}.'" />'."\n".
 2069: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
 2070: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
 2071: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
 2072: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 2073: 			'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" />'."\n".
 2074: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 2075: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 2076: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
 2077: 			&build_section_inputs().
 2078: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 2079: 			'<input type="hidden" name="handgrade"  value="'.$env{'form.handgrade'}.'" />'."\n".
 2080: 			'<input type="hidden" name="NCT"'.
 2081: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
 2082: 	if ($env{'form.handgrade'} eq 'yes') {
 2083: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 2084: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 2085: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
 2086: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
 2087: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
 2088: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
 2089: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
 2090: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
 2091: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
 2092: 	    }
 2093: 	}
 2094: 	
 2095: 	my ($cts,$prnmsg) = (1,'');
 2096: 	while ($cts <= $env{'form.savemsgN'}) {
 2097: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
 2098: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
 2099: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
 2100: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
 2101: 		'" />'."\n".
 2102: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
 2103: 	    $cts++;
 2104: 	}
 2105: 	$request->print($prnmsg);
 2106: 
 2107: 	if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
 2108: 
 2109:             my %lt = &Apache::lonlocal::texthash(
 2110:                           keyw => 'Keyword Options',
 2111:                           list => 'List',
 2112:                           past => 'Paste Selection to List',
 2113:                           high => 'Highlight Attribute',
 2114:                      );
 2115: #
 2116: # Print out the keyword options line
 2117: #
 2118: 	    $request->print(<<KEYWORDS);
 2119: &nbsp;<b>$lt{'keyw'}:</b>&nbsp;
 2120: <a href="javascript:keywords(document.SCORE);" target="_self">$lt{'list'}</a>&nbsp; &nbsp;
 2121: <a href="#" onmousedown="javascript:getSel(); return false"
 2122:  CLASS="page">$lt{'past'}</a>&nbsp; &nbsp;
 2123: <a href="javascript:kwhighlight();" target="_self">$lt{'high'}</a><br /><br />
 2124: KEYWORDS
 2125: #
 2126: # Load the other essays for similarity check
 2127: #
 2128:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
 2129: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 2130: 	    $apath=&escape($apath);
 2131: 	    $apath=~s/\W/\_/gs;
 2132: 	    %old_essays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
 2133:         }
 2134:     }
 2135: 
 2136: # This is where output for one specific student would start
 2137:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
 2138:     $request->print(
 2139:         "\n\n"
 2140:        .'<div class="LC_grade_show_user'.$add_class.'">'
 2141:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
 2142:        ."\n"
 2143:     );
 2144: 
 2145:     # Show additional functions if allowed
 2146:     if ($perm{'vgr'}) {
 2147:         $request->print(
 2148:             &Apache::loncommon::track_student_link(
 2149:                 &mt('View recent activity'),
 2150:                 $uname,$udom,'check')
 2151:            .' '
 2152:         );
 2153:     }
 2154:     if ($perm{'opa'}) {
 2155:         $request->print(
 2156:             &Apache::loncommon::pprmlink(
 2157:                 &mt('Set/Change parameters'),
 2158:                 $uname,$udom,$symb,'check'));
 2159:     }
 2160: 
 2161:     # Show Problem
 2162:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
 2163: 	my $mode;
 2164: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
 2165: 	    $mode='both';
 2166: 	} elsif ($env{'form.vProb'} eq 'all' ) {
 2167: 	    $mode='text';
 2168: 	} elsif ($env{'form.vAns'} eq 'all') {
 2169: 	    $mode='answer';
 2170: 	}
 2171: 	&Apache::lonxml::clear_problem_counter();
 2172: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
 2173:     }
 2174: 
 2175:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2176:     my $res_error;
 2177:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2178:     if ($res_error) {
 2179:         $request->print(&navmap_errormsg());
 2180:         return;
 2181:     }
 2182: 
 2183:     # Display student info
 2184:     $request->print(($counter == 0 ? '' : '<br />'));
 2185: 
 2186:     my $result='<div class="LC_Box">'
 2187:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
 2188:     $result.='<input type="hidden" name="name'.$counter.
 2189:              '" value="'.$env{'form.fullname'}.'" />'."\n";
 2190:     if ($env{'form.handgrade'} eq 'no') {
 2191:         $result.='<p class="LC_info">'
 2192:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
 2193:                 ."</p>\n";
 2194:     }
 2195: 
 2196:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
 2197:     my $fullname;
 2198:     my $col_fullnames = [];
 2199:     if ($env{'form.handgrade'} eq 'yes') {
 2200: 	(my $sub_result,$fullname,$col_fullnames)=
 2201: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 2202: 				 $counter);
 2203: 	$result.=$sub_result;
 2204:     }
 2205:     $request->print($result."\n");
 2206: 
 2207:     # print student answer/submission
 2208:     # Options are (1) Handgraded submission only
 2209:     #             (2) Last submission, includes submission that is not handgraded 
 2210:     #                  (for multi-response type part)
 2211:     #             (3) Last submission plus the parts info
 2212:     #             (4) The whole record for this student
 2213:     if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
 2214: 	my ($string,$timestamp)= &get_last_submission(\%record);
 2215: 	
 2216: 	my $lastsubonly;
 2217: 
 2218:         if ($$timestamp eq '') {
 2219:             $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
 2220:         } else {
 2221:             $lastsubonly =
 2222:                 '<div class="LC_grade_submissions_body">'
 2223:                .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
 2224: 
 2225: 	    my %seenparts;
 2226: 	    my @part_response_id = &flatten_responseType($responseType);
 2227: 	    foreach my $part (@part_response_id) {
 2228: 		next if ($env{'form.lastSub'} eq 'hdgrade' 
 2229: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 2230: 
 2231: 		my ($partid,$respid) = @{ $part };
 2232: 		my $display_part=&get_display_part($partid,$symb);
 2233: 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 2234: 		    if (exists($seenparts{$partid})) { next; }
 2235: 		    $seenparts{$partid}=1;
 2236: 		    my $submitby='<b>Part:</b> '.$display_part.
 2237: 			' <b>Collaborative submission by:</b> '.
 2238: 			'<a href="javascript:viewSubmitter(\''.
 2239: 			$env{"form.$uname:$udom:$partid:submitted_by"}.
 2240: 			'\');" target="_self">'.
 2241: 			$$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
 2242: 		    $request->print($submitby);
 2243: 		    next;
 2244: 		}
 2245: 		my $responsetype = $responseType->{$partid}->{$respid};
 2246: 		if (!exists($record{"resource.$partid.$respid.submission"})) {
 2247:                     $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
 2248:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2249:                         ' <span class="LC_internal_info">'.
 2250:                         '('.&mt('Response ID: [_1]',$respid).')'.
 2251:                         '</span>&nbsp; &nbsp;'.
 2252: 			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 2253: 		    next;
 2254: 		}
 2255: 		foreach my $submission (@$string) {
 2256: 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2257: 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
 2258: 		    my ($ressub,$hide,$subval) = split(/:/,$submission,3);
 2259: 		    # Similarity check
 2260: 		    my $similar='';
 2261:                     my ($type,$trial,$rndseed);
 2262:                     if ($hide eq 'rand') {
 2263:                         $type = 'randomizetry';
 2264:                         $trial = $record{"resource.$partid.tries"};
 2265:                         $rndseed = $record{"resource.$partid.rndseed"};
 2266:                     }
 2267: 		    if($env{'form.checkPlag'}){
 2268: 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 2269: 			    &most_similar($uname,$udom,$subval,\%old_essays);
 2270: 			if ($osim) {
 2271: 			    $osim=int($osim*100.0);
 2272: 			    my %old_course_desc = 
 2273: 				&Apache::lonnet::coursedescription($ocrsid,
 2274: 								   {'one_time' => 1});
 2275: 
 2276:                             if ($hide eq 'anon') {
 2277:                                 $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
 2278:                                          &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
 2279:                             } else {
 2280: 			        $similar="<hr /><h3><span class=\"LC_warning\">".
 2281: 				    &mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
 2282: 				        $osim,
 2283: 				        &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 2284: 				        $old_course_desc{'description'},
 2285: 				        $old_course_desc{'num'},
 2286: 				        $old_course_desc{'domain'}).
 2287: 				    '</span></h3><blockquote><i>'.
 2288: 				    &keywords_highlight($oessay).
 2289: 				    '</i></blockquote><hr />';
 2290:                             }
 2291: 			}
 2292: 		    }
 2293: 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom,
 2294:                                          undef,$type,$trial,$rndseed);
 2295: 		    if ($env{'form.lastSub'} eq 'lastonly' || 
 2296: 			($env{'form.lastSub'} eq 'hdgrade' && 
 2297: 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 2298: 			my $display_part=&get_display_part($partid,$symb);
 2299:                         $lastsubonly.='<div class="LC_grade_submission_part">'.
 2300:                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2301:                             ' <span class="LC_internal_info">'.
 2302:                             '('.&mt('Response ID: [_1]',$respid).')'.
 2303:                             '</span>&nbsp; &nbsp;';
 2304: 			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
 2305: 			if (@$files) {
 2306:                             if ($hide eq 'anon') {
 2307:                                 $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
 2308:                             } else {
 2309:                                 $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
 2310:                                 foreach my $file (@$files) {
 2311:                                     &Apache::lonnet::allowuploaded('/adm/grades',$file);
 2312:                                     $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" /> '.$file.'</a>';
 2313:                                 }
 2314:                             }
 2315: 			    $lastsubonly.='<br />';
 2316: 			}
 2317:                         if ($hide eq 'anon') {
 2318:                             $lastsubonly.='<b>'.&mt('Anonymous Survey').'</b>'; 
 2319:                         } else {
 2320: 			    $lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
 2321: 			        &cleanRecord($subval,$responsetype,$symb,$partid,
 2322: 					     $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
 2323:                         }
 2324: 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 2325: 			$lastsubonly.='</div>';
 2326: 		    }
 2327: 		}
 2328: 	    }
 2329: 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 2330: 	}
 2331: 	$request->print($lastsubonly);
 2332:    } elsif ($env{'form.lastSub'} eq 'datesub') {
 2333: 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 2334: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
 2335:     } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
 2336: 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 2337: 								 $env{'request.course.id'},
 2338: 								 $last,'.submission',
 2339: 								 'Apache::grades::keywords_highlight'));
 2340:     }
 2341: 
 2342:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
 2343: 	.$udom.'" />'."\n");
 2344:     # return if view submission with no grading option
 2345:     if ($env{'form.showgrading'} eq '' || (!&canmodify($usec))) {
 2346: 	my $toGrade.='<input type="button" value="Grade Student" '.
 2347: 	    'onclick="javascript:checksubmit(this.form,\'Grade Student\',\''
 2348: 	    .$counter.'\');" target="_self" /> &nbsp;'."\n" if (&canmodify($usec));
 2349: 	$toGrade.='</div>'."\n";
 2350: 	if (($env{'form.command'} eq 'submission') || 
 2351: 	    ($env{'form.command'} eq 'processGroup' && $counter == $total)) {
 2352: 	    $toGrade.='</form>'.&show_grading_menu_form($symb); 
 2353: 	}
 2354: 	$request->print($toGrade);
 2355: 	return;
 2356:     } else {
 2357: 	$request->print('</div>'."\n");
 2358:     }
 2359: 
 2360:     # essay grading message center
 2361:     if ($env{'form.handgrade'} eq 'yes') {
 2362: 	my $result='<div class="LC_grade_message_center">';
 2363:     
 2364: 	$result.='<div class="LC_grade_message_center_header">'.
 2365: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
 2366: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
 2367: 	my $msgfor = $givenn.' '.$lastname;
 2368: 	if (scalar(@$col_fullnames) > 0) {
 2369: 	    my $lastone = pop(@$col_fullnames);
 2370: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
 2371: 	}
 2372: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
 2373: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
 2374: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 2375: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 2376: 	    ',\''.$msgfor.'\');" target="_self">'.
 2377: 	    &mt('Compose message to student').(scalar(@$col_fullnames) >= 1 ? 's' : '').'</a><label> ('.
 2378: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
 2379: 	    '<img src="'.$request->dir_config('lonIconsURL').
 2380: 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 2381: 	    '<br />&nbsp;('.
 2382: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 2383: 	$result.='</div></div>';
 2384: 	$request->print($result);
 2385:     }
 2386: 
 2387:     my %seen = ();
 2388:     my @partlist;
 2389:     my @gradePartRespid;
 2390:     my @part_response_id = &flatten_responseType($responseType);
 2391:     $request->print(
 2392:         '<div class="LC_Box">'
 2393:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
 2394:     );
 2395:     $request->print(&gradeBox_start());
 2396:     foreach my $part_response_id (@part_response_id) {
 2397:     	my ($partid,$respid) = @{ $part_response_id };
 2398: 	my $part_resp = join('_',@{ $part_response_id });
 2399: 	next if ($seen{$partid} > 0);
 2400: 	$seen{$partid}++;
 2401: 	next if ($$handgrade{$part_resp} ne 'yes' 
 2402: 		 && $env{'form.lastSub'} eq 'hdgrade');
 2403: 	push(@partlist,$partid);
 2404: 	push(@gradePartRespid,$partid.'.'.$respid);
 2405: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
 2406:     }
 2407:     $request->print(&gradeBox_end()); # </div>
 2408:     $request->print('</div>');
 2409: 
 2410:     $request->print('<div class="LC_grade_info_links">');
 2411:     $request->print('</div>');
 2412: 
 2413:     $result='<input type="hidden" name="partlist'.$counter.
 2414: 	'" value="'.(join ":",@partlist).'" />'."\n";
 2415:     $result.='<input type="hidden" name="gradePartRespid'.
 2416: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
 2417:     my $ctr = 0;
 2418:     while ($ctr < scalar(@partlist)) {
 2419: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
 2420: 	    $partlist[$ctr].'" />'."\n";
 2421: 	$ctr++;
 2422:     }
 2423:     $request->print($result.''."\n");
 2424: 
 2425: # Done with printing info for one student
 2426: 
 2427:     $request->print('</div>');#LC_grade_show_user
 2428: 
 2429: 
 2430:     # print end of form
 2431:     if ($counter == $total) {
 2432:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
 2433: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
 2434: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
 2435: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
 2436: 	my $ntstu ='<select name="NTSTU">'.
 2437: 	    '<option>1</option><option>2</option>'.
 2438: 	    '<option>3</option><option>5</option>'.
 2439: 	    '<option>7</option><option>10</option></select>'."\n";
 2440: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
 2441: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
 2442:         $endform.=&mt('[_1]student(s)',$ntstu);
 2443: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
 2444: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
 2445: 	    '<input type="button" value="'.&mt('Next').'" '.
 2446: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
 2447:         $endform.='<span class="LC_warning">'.
 2448:                   &mt('(Next and Previous (student) do not save the scores.)').
 2449:                   '</span>'."\n" ;
 2450:         $endform.="<input type='hidden' value='".&get_increment().
 2451:             "' name='increment' />";
 2452: 	$endform.='</td></tr></table></form>';
 2453: 	$endform.=&show_grading_menu_form($symb);
 2454: 	$request->print($endform);
 2455:     }
 2456:     return '';
 2457: }
 2458: 
 2459: sub check_collaborators {
 2460:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
 2461:     my ($result,@col_fullnames);
 2462:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
 2463:     foreach my $part (keys(%$handgrade)) {
 2464: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
 2465: 					'.maxcollaborators',
 2466: 					$symb,$udom,$uname);
 2467: 	next if ($ncol <= 0);
 2468: 	$part =~ s/\_/\./g;
 2469: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
 2470: 	my (@good_collaborators, @bad_collaborators);
 2471: 	foreach my $possible_collaborator
 2472: 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) { 
 2473: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
 2474: 	    next if ($possible_collaborator eq '');
 2475: 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
 2476: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
 2477: 	    next if ($co_name eq $uname && $co_dom eq $udom);
 2478: 	    # Doing this grep allows 'fuzzy' specification
 2479: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
 2480: 			       keys(%$classlist));
 2481: 	    if (! scalar(@matches)) {
 2482: 		push(@bad_collaborators, $possible_collaborator);
 2483: 	    } else {
 2484: 		push(@good_collaborators, @matches);
 2485: 	    }
 2486: 	}
 2487: 	if (scalar(@good_collaborators) != 0) {
 2488: 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
 2489: 	    foreach my $name (@good_collaborators) {
 2490: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
 2491: 		push(@col_fullnames, $givenn.' '.$lastname);
 2492: 		$result.='<li>'.$fullname->{$name}.'</li>';
 2493: 	    }
 2494: 	    $result.='</ol><br />'."\n";
 2495: 	    my ($part)=split(/\./,$part);
 2496: 	    $result.='<input type="hidden" name="collaborator'.$counter.
 2497: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
 2498: 		"\n";
 2499: 	}
 2500: 	if (scalar(@bad_collaborators) > 0) {
 2501: 	    $result.='<div class="LC_warning">';
 2502: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
 2503: 	    $result .= '</div>';
 2504: 	}         
 2505: 	if (scalar(@bad_collaborators > $ncol)) {
 2506: 	    $result .= '<div class="LC_warning">';
 2507: 	    $result .= &mt('This student has submitted too many '.
 2508: 		'collaborators.  Maximum is [_1].',$ncol);
 2509: 	    $result .= '</div>';
 2510: 	}
 2511:     }
 2512:     return ($result,$fullname,\@col_fullnames);
 2513: }
 2514: 
 2515: #--- Retrieve the last submission for all the parts
 2516: sub get_last_submission {
 2517:     my ($returnhash)=@_;
 2518:     my (@string,$timestamp,%lasthidden);
 2519:     if ($$returnhash{'version'}) {
 2520: 	my %lasthash=();
 2521: 	my ($version);
 2522: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
 2523: 	    foreach my $key (sort(split(/\:/,
 2524: 					$$returnhash{$version.':keys'}))) {
 2525: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
 2526: 		$timestamp = 
 2527: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 2528: 	    }
 2529: 	}
 2530:         my (%typeparts,%randombytry);
 2531:         my $showsurv = 
 2532:             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
 2533:         foreach my $key (sort(keys(%lasthash))) {
 2534:             if ($key =~ /\.type$/) {
 2535:                 if (($lasthash{$key} eq 'anonsurvey') || 
 2536:                     ($lasthash{$key} eq 'anonsurveycred') ||
 2537:                     ($lasthash{$key} eq 'randomizetry')) {
 2538:                     my ($ign,@parts) = split(/\./,$key);
 2539:                     pop(@parts);
 2540:                     my $id = join('.',@parts);
 2541:                     if ($lasthash{$key} eq 'randomizetry') {
 2542:                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
 2543:                     } else {
 2544:                         unless ($showsurv) {
 2545:                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
 2546:                         }
 2547:                     }
 2548:                     delete($lasthash{$key});
 2549:                 }
 2550:             }
 2551:         }
 2552:         my @hidden = keys(%typeparts);
 2553:         my @randomize = keys(%randombytry);
 2554: 	foreach my $key (keys(%lasthash)) {
 2555: 	    next if ($key !~ /\.submission$/);
 2556:             my $hide;
 2557:             if (@hidden) {
 2558:                 foreach my $id (@hidden) {
 2559:                     if ($key =~ /^\Q$id\E/) {
 2560:                         $hide = 'anon';
 2561:                         last;
 2562:                     }
 2563:                 }
 2564:             }
 2565:             unless ($hide) {
 2566:                 if (@randomize) {
 2567:                     foreach my $id (@hidden) {
 2568:                         if ($key =~ /^\Q$id\E/) {
 2569:                             $hide = 'rand';
 2570:                             last;
 2571:                         }
 2572:                     }
 2573:                 }
 2574:             }
 2575: 	    my ($partid,$foo) = split(/submission$/,$key);
 2576: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
 2577: 		'<span class="LC_warning">Draft Copy</span> ' : '';
 2578: 	    push(@string, join(':', $key, $hide, $draft.$lasthash{$key}));
 2579: 	}
 2580:     }
 2581:     if (!@string) {
 2582: 	$string[0] =
 2583: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
 2584:     }
 2585:     return (\@string,\$timestamp);
 2586: }
 2587: 
 2588: #--- High light keywords, with style choosen by user.
 2589: sub keywords_highlight {
 2590:     my $string    = shift;
 2591:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
 2592:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
 2593:     (my $styleoff = $styleon) =~ s/\</\<\//;
 2594:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
 2595:     foreach my $keyword (@keylist) {
 2596: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
 2597:     }
 2598:     return $string;
 2599: }
 2600: 
 2601: #--- Called from submission routine
 2602: sub processHandGrade {
 2603:     my ($request) = shift;
 2604:     my $symb   = &get_symb($request);
 2605:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2606:     my $button = $env{'form.gradeOpt'};
 2607:     my $ngrade = $env{'form.NCT'};
 2608:     my $ntstu  = $env{'form.NTSTU'};
 2609:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2610:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
 2611: 
 2612:     if ($button eq 'Save & Next') {
 2613: 	my $ctr = 0;
 2614: 	while ($ctr < $ngrade) {
 2615: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 2616: 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 2617: 	    if ($errorflag eq 'no_score') {
 2618: 		$ctr++;
 2619: 		next;
 2620: 	    }
 2621: 	    if ($errorflag eq 'not_allowed') {
 2622: 		$request->print("<span class=\"LC_warning\">Not allowed to modify grades for $uname:$udom</span>");
 2623: 		$ctr++;
 2624: 		next;
 2625: 	    }
 2626: 	    my $includemsg = $env{'form.includemsg'.$ctr};
 2627: 	    my ($subject,$message,$msgstatus) = ('','','');
 2628: 	    my $restitle = &Apache::lonnet::gettitle($symb);
 2629:             my ($feedurl,$showsymb) =
 2630: 		&get_feedurl_and_symb($symb,$uname,$udom);
 2631: 	    my $messagetail;
 2632: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
 2633: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
 2634: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
 2635: 		$subject.=' ['.$restitle.']';
 2636: 		my (@msgnum) = split(/,/,$includemsg);
 2637: 		foreach (@msgnum) {
 2638: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
 2639: 		}
 2640: 		$message =&Apache::lonfeedback::clear_out_html($message);
 2641: 		if ($env{'form.withgrades'.$ctr}) {
 2642: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
 2643: 		    $messagetail = " for <a href=\"".
 2644: 		                   $feedurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2645: 		}
 2646: 		$msgstatus = 
 2647:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
 2648: 						     $message.$messagetail,
 2649:                                                      undef,$feedurl,undef,
 2650:                                                      undef,undef,$showsymb,
 2651:                                                      $restitle);
 2652: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
 2653: 				$msgstatus.'<br />');
 2654: 	    }
 2655: 	    if ($env{'form.collaborator'.$ctr}) {
 2656: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
 2657: 		foreach my $collabstr (@collabstrs) {
 2658: 		    my ($part,@collaborators) = split(/:/,$collabstr);
 2659: 		    foreach my $collaborator (@collaborators) {
 2660: 			my ($errorflag,$pts,$wgt) = 
 2661: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
 2662: 					   $env{'form.unamedom'.$ctr},$part);
 2663: 			if ($errorflag eq 'not_allowed') {
 2664: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 2665: 			    next;
 2666: 			} elsif ($message ne '') {
 2667: 			    my ($baseurl,$showsymb) = 
 2668: 				&get_feedurl_and_symb($symb,$collaborator,
 2669: 						      $udom);
 2670: 			    if ($env{'form.withgrades'.$ctr}) {
 2671: 				$messagetail = " for <a href=\"".
 2672:                                     $baseurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2673: 			    }
 2674: 			    $msgstatus = 
 2675: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 2676: 			}
 2677: 		    }
 2678: 		}
 2679: 	    }
 2680: 	    $ctr++;
 2681: 	}
 2682:     }
 2683: 
 2684:     if ($env{'form.handgrade'} eq 'yes') {
 2685: 	# Keywords sorted in alphabatical order
 2686: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2687: 	my %keyhash = ();
 2688: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
 2689: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
 2690: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 2691: 	$env{'form.keywords'} = join(' ',@keywords);
 2692: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
 2693: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
 2694: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 2695: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 2696: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
 2697: 
 2698: 	# message center - Order of message gets changed. Blank line is eliminated.
 2699: 	# New messages are saved in env for the next student.
 2700: 	# All messages are saved in nohist_handgrade.db
 2701: 	my ($ctr,$idx) = (1,1);
 2702: 	while ($ctr <= $env{'form.savemsgN'}) {
 2703: 	    if ($env{'form.savemsg'.$ctr} ne '') {
 2704: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
 2705: 		$idx++;
 2706: 	    }
 2707: 	    $ctr++;
 2708: 	}
 2709: 	$ctr = 0;
 2710: 	while ($ctr < $ngrade) {
 2711: 	    if ($env{'form.newmsg'.$ctr} ne '') {
 2712: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2713: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2714: 		$idx++;
 2715: 	    }
 2716: 	    $ctr++;
 2717: 	}
 2718: 	$env{'form.savemsgN'} = --$idx;
 2719: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
 2720: 	my $putresult = &Apache::lonnet::put
 2721: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
 2722:     }
 2723:     # Called by Save & Refresh from Highlight Attribute Window
 2724:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 2725:     if ($env{'form.refresh'} eq 'on') {
 2726: 	my ($ctr,$total) = (0,0);
 2727: 	while ($ctr < $ngrade) {
 2728: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
 2729: 	    $ctr++;
 2730: 	}
 2731: 	$env{'form.NTSTU'}=$ngrade;
 2732: 	$ctr = 0;
 2733: 	while ($ctr < $total) {
 2734: 	    my $processUser = $env{'form.unamedom'.$ctr};
 2735: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2736: 	    $env{'form.fullname'} = $$fullname{$processUser};
 2737: 	    &submission($request,$ctr,$total-1);
 2738: 	    $ctr++;
 2739: 	}
 2740: 	return '';
 2741:     }
 2742: 
 2743: # Go directly to grade student - from submission or link from chart page
 2744:     if ($button eq 'Grade Student') {
 2745: 	(undef,undef,$env{'form.handgrade'},undef,undef) = &showResourceInfo($symb);
 2746: 	my $processUser = $env{'form.unamedom'.$env{'form.studentNo'}};
 2747: 	($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2748: 	$env{'form.fullname'} = $$fullname{$processUser};
 2749: 	&submission($request,0,0);
 2750: 	return '';
 2751:     }
 2752: 
 2753:     # Get the next/previous one or group of students
 2754:     my $firststu = $env{'form.unamedom0'};
 2755:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
 2756:     my $ctr = 2;
 2757:     while ($laststu eq '') {
 2758: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
 2759: 	$ctr++;
 2760: 	$laststu = $firststu if ($ctr > $ngrade);
 2761:     }
 2762: 
 2763:     my (@parsedlist,@nextlist);
 2764:     my ($nextflg) = 0;
 2765:     foreach my $item (sort 
 2766: 	     {
 2767: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 2768: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 2769: 		 }
 2770: 		 return $a cmp $b;
 2771: 	     } (keys(%$fullname))) {
 2772: 	if ($nextflg == 1 && $button =~ /Next$/) {
 2773: 	    push(@parsedlist,$item);
 2774: 	}
 2775: 	$nextflg = 1 if ($item eq $laststu);
 2776: 	if ($button eq 'Previous') {
 2777: 	    last if ($item eq $firststu);
 2778: 	    push(@parsedlist,$item);
 2779: 	}
 2780:     }
 2781:     $ctr = 0;
 2782:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
 2783:     my $res_error;
 2784:     my ($partlist) = &response_type($symb,\$res_error);
 2785:     if ($res_error) {
 2786:         $request->print(&navmap_errormsg());
 2787:         return;
 2788:     }
 2789:     foreach my $student (@parsedlist) {
 2790: 	my $submitonly=$env{'form.submitonly'};
 2791: 	my ($uname,$udom) = split(/:/,$student);
 2792: 	
 2793: 	if ($submitonly eq 'queued') {
 2794: 	    my %queue_status = 
 2795: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 2796: 							$udom,$uname);
 2797: 	    next if (!defined($queue_status{'gradingqueue'}));
 2798: 	}
 2799: 
 2800: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
 2801: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2802: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
 2803: 	    my $submitted = 0;
 2804: 	    my $ungraded = 0;
 2805: 	    my $incorrect = 0;
 2806: 	    foreach my $item (keys(%status)) {
 2807: 		$submitted = 1 if ($status{$item} ne 'nothing');
 2808: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
 2809: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
 2810: 		my ($foo,$partid,$foo1) = split(/\./,$item);
 2811: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 2812: 		    $submitted = 0;
 2813: 		}
 2814: 	    }
 2815: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 2816: 				     $submitonly eq 'incorrect' ||
 2817: 				     $submitonly eq 'graded'));
 2818: 	    next if (!$ungraded && ($submitonly eq 'graded'));
 2819: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 2820: 	}
 2821: 	push(@nextlist,$student) if ($ctr < $ntstu);
 2822: 	last if ($ctr == $ntstu);
 2823: 	$ctr++;
 2824:     }
 2825: 
 2826:     $ctr = 0;
 2827:     my $total = scalar(@nextlist)-1;
 2828: 
 2829:     foreach (sort(@nextlist)) {
 2830: 	my ($uname,$udom,$submitter) = split(/:/);
 2831: 	$env{'form.student'}  = $uname;
 2832: 	$env{'form.userdom'}  = $udom;
 2833: 	$env{'form.fullname'} = $$fullname{$_};
 2834: 	&submission($request,$ctr,$total);
 2835: 	$ctr++;
 2836:     }
 2837:     if ($total < 0) {
 2838: 	my $the_end = '<h3><span class="LC_info">'.&mt('LON-CAPA User Message').'</span></h3><br />'."\n";
 2839: 	$the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
 2840: 	$the_end.=&mt('Click on the button below to return to the grading menu.').'<br /><br />'."\n";
 2841: 	$the_end.=&show_grading_menu_form($symb);
 2842: 	$request->print($the_end);
 2843:     }
 2844:     return '';
 2845: }
 2846: 
 2847: #---- Save the score and award for each student, if changed
 2848: sub saveHandGrade {
 2849:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 2850:     my @version_parts;
 2851:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 2852: 					   $env{'request.course.id'});
 2853:     if (!&canmodify($usec)) { return('not_allowed'); }
 2854:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
 2855:     my @parts_graded;
 2856:     my %newrecord  = ();
 2857:     my ($pts,$wgt) = ('','');
 2858:     my %aggregate = ();
 2859:     my $aggregateflag = 0;
 2860:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
 2861:     foreach my $new_part (@parts) {
 2862: 	#collaborator ($submi may vary for different parts
 2863: 	if ($submitter && $new_part ne $part) { next; }
 2864: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
 2865: 	if ($dropMenu eq 'excused') {
 2866: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 2867: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 2868: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 2869: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 2870: 		}
 2871: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 2872: 	    }
 2873: 	} elsif ($dropMenu eq 'reset status'
 2874: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
 2875: 	    foreach my $key (keys(%record)) {
 2876: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
 2877: 	    }
 2878: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 2879: 		"$env{'user.name'}:$env{'user.domain'}";
 2880:             my $totaltries = $record{'resource.'.$part.'.tries'};
 2881: 
 2882:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 2883: 					       [$new_part]);
 2884:             my $aggtries =$totaltries;
 2885:             if ($last_resets{$new_part}) {
 2886:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
 2887: 					   $new_part);
 2888:             }
 2889: 
 2890:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
 2891:             if ($aggtries > 0) {
 2892:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 2893:                 $aggregateflag = 1;
 2894:             }
 2895: 	} elsif ($dropMenu eq '') {
 2896: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 2897: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
 2898: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
 2899: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
 2900: 		next;
 2901: 	    }
 2902: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 2903: 		$env{'form.WGT'.$newflg.'_'.$new_part};
 2904: 	    my $partial= $pts/$wgt;
 2905: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 2906: 		#do not update score for part if not changed.
 2907:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 2908: 		next;
 2909: 	    } else {
 2910: 	        push(@parts_graded,$new_part);
 2911: 	    }
 2912: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 2913: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
 2914: 	    }
 2915: 	    my $reckey = 'resource.'.$new_part.'.solved';
 2916: 	    if ($partial == 0) {
 2917: 		if ($record{$reckey} ne 'incorrect_by_override') {
 2918: 		    $newrecord{$reckey} = 'incorrect_by_override';
 2919: 		}
 2920: 	    } else {
 2921: 		if ($record{$reckey} ne 'correct_by_override') {
 2922: 		    $newrecord{$reckey} = 'correct_by_override';
 2923: 		}
 2924: 	    }	    
 2925: 	    if ($submitter && 
 2926: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
 2927: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
 2928: 	    }
 2929: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 2930: 		"$env{'user.name'}:$env{'user.domain'}";
 2931: 	}
 2932: 	# unless problem has been graded, set flag to version the submitted files
 2933: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
 2934: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
 2935: 	        $dropMenu eq 'reset status')
 2936: 	   {
 2937: 	    push(@version_parts,$new_part);
 2938: 	}
 2939:     }
 2940:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2941:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2942: 
 2943:     if (%newrecord) {
 2944:         if (@version_parts) {
 2945:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
 2946:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
 2947: 	    @newrecord{@changed_keys} = @record{@changed_keys};
 2948: 	    foreach my $new_part (@version_parts) {
 2949: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
 2950: 				$new_part,\%newrecord);
 2951: 	    }
 2952:         }
 2953: 	&Apache::lonnet::cstore(\%newrecord,$symb,
 2954: 				$env{'request.course.id'},$domain,$stuname);
 2955: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
 2956: 				     $cdom,$cnum,$domain,$stuname);
 2957:     }
 2958:     if ($aggregateflag) {
 2959:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 2960: 			      $cdom,$cnum);
 2961:     }
 2962:     return ('',$pts,$wgt);
 2963: }
 2964: 
 2965: sub check_and_remove_from_queue {
 2966:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
 2967:     my @ungraded_parts;
 2968:     foreach my $part (@{$parts}) {
 2969: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
 2970: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
 2971: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 2972: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 2973: 		) {
 2974: 	    push(@ungraded_parts, $part);
 2975: 	}
 2976:     }
 2977:     if ( !@ungraded_parts ) {
 2978: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
 2979: 					       $cnum,$domain,$stuname);
 2980:     }
 2981: }
 2982: 
 2983: sub handback_files {
 2984:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
 2985:     my $portfolio_root = '/userfiles/portfolio';
 2986:     my $res_error;
 2987:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2988:     if ($res_error) {
 2989:         $request->print('<br />'.&navmap_errormsg().'<br />');
 2990:         return;
 2991:     }
 2992:     my @handedback;
 2993:     my $file_msg;
 2994:     my @part_response_id = &flatten_responseType($responseType);
 2995:     foreach my $part_response_id (@part_response_id) {
 2996:     	my ($part_id,$resp_id) = @{ $part_response_id };
 2997: 	my $part_resp = join('_',@{ $part_response_id });
 2998:         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
 2999:             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
 3000:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
 3001: 		if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
 3002:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
 3003:                     my ($directory,$answer_file) = 
 3004:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
 3005:                     my ($answer_name,$answer_ver,$answer_ext) =
 3006: 		        &file_name_version_ext($answer_file);
 3007: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
 3008:                     my $getpropath = 1;
 3009:                     my ($dir_list,$listerror) =
 3010:                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
 3011:                                                  $domain,$stuname,$getpropath);
 3012: 		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3013:                     # fix file name
 3014:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
 3015:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
 3016:             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
 3017:             	                                $save_file_name);
 3018:                     if ($result !~ m|^/uploaded/|) {
 3019:                         $request->print('<br /><span class="LC_error">'.
 3020:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
 3021:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
 3022:                                         '</span>');
 3023:                     } else {
 3024:                         # mark the file as read only
 3025:                         push(@handedback,$save_file_name);
 3026: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 3027: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 3028: 			}
 3029:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
 3030: 			$file_msg.='<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
 3031: 
 3032:                     }
 3033:                     $request->print('<br />'.&mt('[_1] will be the uploaded file name [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
 3034:                 }
 3035:             }
 3036:         }
 3037:     }
 3038:     if (@handedback > 0) {
 3039:         $request->print('<br />');
 3040:         my @what = ($symb,$env{'request.course.id'},'handback');
 3041:         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
 3042:         my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});
 3043:         my ($subject,$message);
 3044:         if (scalar(@handedback) == 1) {
 3045:             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
 3046:         } else {
 3047:             $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
 3048:             $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
 3049:         }
 3050:         $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
 3051:         $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
 3052:                     &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
 3053:         my ($feedurl,$showsymb) =
 3054:             &get_feedurl_and_symb($symb,$domain,$stuname);
 3055:         my $restitle = &Apache::lonnet::gettitle($symb);
 3056:         $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
 3057:         my $msgstatus =
 3058:              &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
 3059:                  $message,undef,$feedurl,undef,undef,undef,$showsymb,
 3060:                  $restitle);
 3061:         if ($msgstatus) {
 3062:             $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
 3063:         }
 3064:     }
 3065:     return;
 3066: }
 3067: 
 3068: sub get_feedurl_and_symb {
 3069:     my ($symb,$uname,$udom) = @_;
 3070:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3071:     $url = &Apache::lonnet::clutter($url);
 3072:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
 3073: 					$symb,$udom,$uname);
 3074:     if ($encrypturl =~ /^yes$/i) {
 3075: 	&Apache::lonenc::encrypted(\$url,1);
 3076: 	&Apache::lonenc::encrypted(\$symb,1);
 3077:     }
 3078:     return ($url,$symb);
 3079: }
 3080: 
 3081: sub get_submitted_files {
 3082:     my ($udom,$uname,$partid,$respid,$record) = @_;
 3083:     my @files;
 3084:     if ($$record{"resource.$partid.$respid.portfiles"}) {
 3085:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
 3086:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
 3087:     	    push(@files,$file_url.$file);
 3088:         }
 3089:     }
 3090:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
 3091:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
 3092:     }
 3093:     return (\@files);
 3094: }
 3095: 
 3096: # ----------- Provides number of tries since last reset.
 3097: sub get_num_tries {
 3098:     my ($record,$last_reset,$part) = @_;
 3099:     my $timestamp = '';
 3100:     my $num_tries = 0;
 3101:     if ($$record{'version'}) {
 3102:         for (my $version=$$record{'version'};$version>=1;$version--) {
 3103:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
 3104:                 $timestamp = $$record{$version.':timestamp'};
 3105:                 if ($timestamp > $last_reset) {
 3106:                     $num_tries ++;
 3107:                 } else {
 3108:                     last;
 3109:                 }
 3110:             }
 3111:         }
 3112:     }
 3113:     return $num_tries;
 3114: }
 3115: 
 3116: # ----------- Determine decrements required in aggregate totals 
 3117: sub decrement_aggs {
 3118:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
 3119:     my %decrement = (
 3120:                         attempts => 0,
 3121:                         users => 0,
 3122:                         correct => 0
 3123:                     );
 3124:     $decrement{'attempts'} = $aggtries;
 3125:     if ($solvedstatus =~ /^correct/) {
 3126:         $decrement{'correct'} = 1;
 3127:     }
 3128:     if ($aggtries == $totaltries) {
 3129:         $decrement{'users'} = 1;
 3130:     }
 3131:     foreach my $type (keys(%decrement)) {
 3132:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
 3133:     }
 3134:     return;
 3135: }
 3136: 
 3137: # ----------- Determine timestamps for last reset of aggregate totals for parts  
 3138: sub get_last_resets {
 3139:     my ($symb,$courseid,$partids) =@_;
 3140:     my %last_resets;
 3141:     my $cdom = $env{'course.'.$courseid.'.domain'};
 3142:     my $cname = $env{'course.'.$courseid.'.num'};
 3143:     my @keys;
 3144:     foreach my $part (@{$partids}) {
 3145: 	push(@keys,"$symb\0$part\0resettime");
 3146:     }
 3147:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
 3148: 				     $cdom,$cname);
 3149:     foreach my $part (@{$partids}) {
 3150: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
 3151:     }
 3152:     return %last_resets;
 3153: }
 3154: 
 3155: # ----------- Handles creating versions for portfolio files as answers
 3156: sub version_portfiles {
 3157:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
 3158:     my $version_parts = join('|',@$v_flag);
 3159:     my @returned_keys;
 3160:     my $parts = join('|', @$parts_graded);
 3161:     my $portfolio_root = '/userfiles/portfolio';
 3162:     foreach my $key (keys(%$record)) {
 3163:         my $new_portfiles;
 3164:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
 3165:             my @versioned_portfiles;
 3166:             my @portfiles = split(/\s*,\s*/,$$record{$key});
 3167:             foreach my $file (@portfiles) {
 3168:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
 3169:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
 3170: 		my ($answer_name,$answer_ver,$answer_ext) =
 3171: 		    &file_name_version_ext($answer_file);
 3172:                 my $getpropath = 1;
 3173:                 my ($dir_list,$listerror) =
 3174:                     &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
 3175:                                              $stu_name,$getpropath);
 3176:                 my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3177:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
 3178:                 if ($new_answer ne 'problem getting file') {
 3179:                     push(@versioned_portfiles, $directory.$new_answer);
 3180:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
 3181:                         [$directory.$new_answer],
 3182:                         [$symb,$env{'request.course.id'},'graded']);
 3183:                 }
 3184:             }
 3185:             $$record{$key} = join(',',@versioned_portfiles);
 3186:             push(@returned_keys,$key);
 3187:         }
 3188:     } 
 3189:     return (@returned_keys);   
 3190: }
 3191: 
 3192: sub get_next_version {
 3193:     my ($answer_name, $answer_ext, $dir_list) = @_;
 3194:     my $version;
 3195:     if (ref($dir_list) eq 'ARRAY') {
 3196:         foreach my $row (@{$dir_list}) {
 3197:             my ($file) = split(/\&/,$row,2);
 3198:             my ($file_name,$file_version,$file_ext) =
 3199: 	        &file_name_version_ext($file);
 3200:             if (($file_name eq $answer_name) && 
 3201: 	        ($file_ext eq $answer_ext)) {
 3202:                 # gets here if filename and extension match, 
 3203:                 # regardless of version
 3204:                 if ($file_version ne '') {
 3205:                     # a versioned file is found  so save it for later
 3206:                     if ($file_version > $version) {
 3207: 		        $version = $file_version;
 3208:                     }
 3209: 	        }
 3210:             }
 3211:         }
 3212:     }
 3213:     $version ++;
 3214:     return($version);
 3215: }
 3216: 
 3217: sub version_selected_portfile {
 3218:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
 3219:     my ($answer_name,$answer_ver,$answer_ext) =
 3220:         &file_name_version_ext($file_name);
 3221:     my $new_answer;
 3222:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
 3223:     if($env{'form.copy'} eq '-1') {
 3224:         $new_answer = 'problem getting file';
 3225:     } else {
 3226:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
 3227:         my $copy_result = &Apache::lonnet::finishuserfileupload(
 3228:                             $stu_name,$domain,'copy',
 3229: 		        '/portfolio'.$directory.$new_answer);
 3230:     }    
 3231:     return ($new_answer);
 3232: }
 3233: 
 3234: sub file_name_version_ext {
 3235:     my ($file)=@_;
 3236:     my @file_parts = split(/\./, $file);
 3237:     my ($name,$version,$ext);
 3238:     if (@file_parts > 1) {
 3239: 	$ext=pop(@file_parts);
 3240: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
 3241: 	    $version=pop(@file_parts);
 3242: 	}
 3243: 	$name=join('.',@file_parts);
 3244:     } else {
 3245: 	$name=join('.',@file_parts);
 3246:     }
 3247:     return($name,$version,$ext);
 3248: }
 3249: 
 3250: #--------------------------------------------------------------------------------------
 3251: #
 3252: #-------------------------- Next few routines handles grading by section or whole class
 3253: #
 3254: #--- Javascript to handle grading by section or whole class
 3255: sub viewgrades_js {
 3256:     my ($request) = shift;
 3257: 
 3258:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 3259:     $request->print(<<VIEWJAVASCRIPT);
 3260: <script type="text/javascript" language="javascript">
 3261:    function writePoint(partid,weight,point) {
 3262: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3263: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3264: 	if (point == "textval") {
 3265: 	    point = document.classgrade["TEXTVAL_"+partid].value;
 3266: 	    if (isNaN(point) || parseFloat(point) < 0) {
 3267: 		alert("$alertmsg"+parseFloat(point));
 3268: 		var resetbox = false;
 3269: 		for (var i=0; i<radioButton.length; i++) {
 3270: 		    if (radioButton[i].checked) {
 3271: 			textbox.value = i;
 3272: 			resetbox = true;
 3273: 		    }
 3274: 		}
 3275: 		if (!resetbox) {
 3276: 		    textbox.value = "";
 3277: 		}
 3278: 		return;
 3279: 	    }
 3280: 	    if (parseFloat(point) > parseFloat(weight)) {
 3281: 		var resp = confirm("You entered a value ("+parseFloat(point)+
 3282: 				   ") greater than the weight for the part. Accept?");
 3283: 		if (resp == false) {
 3284: 		    textbox.value = "";
 3285: 		    return;
 3286: 		}
 3287: 	    }
 3288: 	    for (var i=0; i<radioButton.length; i++) {
 3289: 		radioButton[i].checked=false;
 3290: 		if (parseFloat(point) == i) {
 3291: 		    radioButton[i].checked=true;
 3292: 		}
 3293: 	    }
 3294: 
 3295: 	} else {
 3296: 	    textbox.value = parseFloat(point);
 3297: 	}
 3298: 	for (i=0;i<document.classgrade.total.value;i++) {
 3299: 	    var user = document.classgrade["ctr"+i].value;
 3300: 	    user = user.replace(new RegExp(':', 'g'),"_");
 3301: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3302: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3303: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3304: 	    if (saveval != "correct") {
 3305: 		scorename.value = point;
 3306: 		if (selname[0].selected != true) {
 3307: 		    selname[0].selected = true;
 3308: 		}
 3309: 	    }
 3310: 	}
 3311: 	document.classgrade["SELVAL_"+partid][0].selected = true;
 3312:     }
 3313: 
 3314:     function writeRadText(partid,weight) {
 3315: 	var selval   = document.classgrade["SELVAL_"+partid];
 3316: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3317:         var override = document.classgrade["FORCE_"+partid].checked;
 3318: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3319: 	if (selval[1].selected || selval[2].selected) {
 3320: 	    for (var i=0; i<radioButton.length; i++) {
 3321: 		radioButton[i].checked=false;
 3322: 
 3323: 	    }
 3324: 	    textbox.value = "";
 3325: 
 3326: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3327: 		var user = document.classgrade["ctr"+i].value;
 3328: 		user = user.replace(new RegExp(':', 'g'),"_");
 3329: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3330: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3331: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3332: 		if ((saveval != "correct") || override) {
 3333: 		    scorename.value = "";
 3334: 		    if (selval[1].selected) {
 3335: 			selname[1].selected = true;
 3336: 		    } else {
 3337: 			selname[2].selected = true;
 3338: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
 3339: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
 3340: 		    }
 3341: 		}
 3342: 	    }
 3343: 	} else {
 3344: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3345: 		var user = document.classgrade["ctr"+i].value;
 3346: 		user = user.replace(new RegExp(':', 'g'),"_");
 3347: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3348: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3349: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3350: 		if ((saveval != "correct") || override) {
 3351: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3352: 		    selname[0].selected = true;
 3353: 		}
 3354: 	    }
 3355: 	}	    
 3356:     }
 3357: 
 3358:     function changeSelect(partid,user) {
 3359: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3360: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
 3361: 	var point  = textbox.value;
 3362: 	var weight = document.classgrade["weight_"+partid].value;
 3363: 
 3364: 	if (isNaN(point) || parseFloat(point) < 0) {
 3365: 	    alert("$alertmsg"+parseFloat(point));
 3366: 	    textbox.value = "";
 3367: 	    return;
 3368: 	}
 3369: 	if (parseFloat(point) > parseFloat(weight)) {
 3370: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
 3371: 			       ") greater than the weight of the part. Accept?");
 3372: 	    if (resp == false) {
 3373: 		textbox.value = "";
 3374: 		return;
 3375: 	    }
 3376: 	}
 3377: 	selval[0].selected = true;
 3378:     }
 3379: 
 3380:     function changeOneScore(partid,user) {
 3381: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3382: 	if (selval[1].selected || selval[2].selected) {
 3383: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
 3384: 	    if (selval[2].selected) {
 3385: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
 3386: 	    }
 3387:         }
 3388:     }
 3389: 
 3390:     function resetEntry(numpart) {
 3391: 	for (ctpart=0;ctpart<numpart;ctpart++) {
 3392: 	    var partid = document.classgrade["partid_"+ctpart].value;
 3393: 	    var radioButton = document.classgrade["RADVAL_"+partid];
 3394: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
 3395: 	    var selval  = document.classgrade["SELVAL_"+partid];
 3396: 	    for (var i=0; i<radioButton.length; i++) {
 3397: 		radioButton[i].checked=false;
 3398: 
 3399: 	    }
 3400: 	    textbox.value = "";
 3401: 	    selval[0].selected = true;
 3402: 
 3403: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3404: 		var user = document.classgrade["ctr"+i].value;
 3405: 		user = user.replace(new RegExp(':', 'g'),"_");
 3406: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3407: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3408: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
 3409: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
 3410: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3411: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3412: 		if (saveselval == "excused") {
 3413: 		    if (selname[1].selected == false) { selname[1].selected = true;}
 3414: 		} else {
 3415: 		    if (selname[0].selected == false) {selname[0].selected = true};
 3416: 		}
 3417: 	    }
 3418: 	}
 3419:     }
 3420: 
 3421: </script>
 3422: VIEWJAVASCRIPT
 3423: }
 3424: 
 3425: #--- show scores for a section or whole class w/ option to change/update a score
 3426: sub viewgrades {
 3427:     my ($request) = shift;
 3428:     &viewgrades_js($request);
 3429: 
 3430:     my ($symb) = &get_symb($request);
 3431:     #need to make sure we have the correct data for later EXT calls, 
 3432:     #thus invalidate the cache
 3433:     &Apache::lonnet::devalidatecourseresdata(
 3434:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 3435:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 3436:     &Apache::lonnet::clear_EXT_cache_status();
 3437: 
 3438:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
 3439:     $result.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
 3440: 
 3441:     #view individual student submission form - called using Javascript viewOneStudent
 3442:     $result.=&jscriptNform($symb);
 3443: 
 3444:     #beginning of class grading form
 3445:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 3446:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
 3447: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 3448: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
 3449: 	&build_section_inputs().
 3450: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 3451: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 3452: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 3453: 
 3454:     my ($common_header,$specific_header);
 3455:     if ($env{'form.section'} eq 'all') {
 3456: 	$common_header = &mt('Assign Common Grade to Class');
 3457:         $specific_header = &mt('Assign Grade to Specific Students in Class');
 3458:     } elsif ($env{'form.section'} eq 'none') {
 3459:         $common_header = &mt('Assign Common Grade to Students in no Section');
 3460: 	$specific_header = &mt('Assign Grade to Specific Students in no Section');
 3461:     } else {
 3462:         my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3463:         $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
 3464: 	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
 3465:     }
 3466:     $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
 3467:     #radio buttons/text box for assigning points for a section or class.
 3468:     #handles different parts of a problem
 3469:     my $res_error;
 3470:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3471:     if ($res_error) {
 3472:         return &navmap_errormsg();
 3473:     }
 3474:     my %weight = ();
 3475:     my $ctsparts = 0;
 3476:     my %seen = ();
 3477:     my @part_response_id = &flatten_responseType($responseType);
 3478:     foreach my $part_response_id (@part_response_id) {
 3479:     	my ($partid,$respid) = @{ $part_response_id };
 3480: 	my $part_resp = join('_',@{ $part_response_id });
 3481: 	next if $seen{$partid};
 3482: 	$seen{$partid}++;
 3483: 	my $handgrade=$$handgrade{$part_resp};
 3484: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 3485: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 3486: 
 3487: 	my $display_part=&get_display_part($partid,$symb);
 3488: 	my $radio.='<table border="0"><tr>';  
 3489: 	my $ctr = 0;
 3490: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
 3491: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
 3492: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
 3493: 		','.$ctr.')" />'.$ctr."</label></td>\n";
 3494: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 3495: 	    $ctr++;
 3496: 	}
 3497: 	$radio.='</tr></table>';
 3498: 	my $line = '<input type="text" name="TEXTVAL_'.
 3499: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 3500: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 3501: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
 3502: 	$line.= '<td><b>'.&mt('Grade Status').':</b><select name="SELVAL_'.$partid.'"'.
 3503: 	    'onchange="javascript:writeRadText(\''.$partid.'\','.
 3504: 		$weight{$partid}.')"> '.
 3505: 	    '<option selected="selected"> </option>'.
 3506: 	    '<option value="excused">'.&mt('excused').'</option>'.
 3507: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
 3508: 	    '</select></td>'.
 3509:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
 3510: 	$line.='<input type="hidden" name="partid_'.
 3511: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
 3512: 	$line.='<input type="hidden" name="weight_'.
 3513: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
 3514: 
 3515: 	$result.=
 3516: 	    &Apache::loncommon::start_data_table_row()."\n".
 3517: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
 3518: 	    &Apache::loncommon::end_data_table_row()."\n";
 3519: 	$ctsparts++;
 3520:     }
 3521:     $result.=&Apache::loncommon::end_data_table()."\n".
 3522: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
 3523:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
 3524: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
 3525: 
 3526:     #table listing all the students in a section/class
 3527:     #header of table
 3528:     $result.= '<h3>'.$specific_header.'</h3>'.
 3529:               &Apache::loncommon::start_data_table().
 3530: 	      &Apache::loncommon::start_data_table_header_row().
 3531: 	      '<th>'.&mt('No.').'</th>'.
 3532: 	      '<th>'.&nameUserString('header')."</th>\n";
 3533:     my $partserror;
 3534:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3535:     if ($partserror) {
 3536:         return &navmap_errormsg();
 3537:     }
 3538:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
 3539:     my @partids = ();
 3540:     foreach my $part (@parts) {
 3541: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3542:         my $narrowtext = &mt('Tries');
 3543: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
 3544: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
 3545: 	my ($partid) = &split_part_type($part);
 3546:         push(@partids,$partid);
 3547: 	my $display_part=&get_display_part($partid,$symb);
 3548: 	if ($display =~ /^Partial Credit Factor/) {
 3549: 	    $result.='<th>'.
 3550: 		&mt('Score Part: [_1]<br /> (weight = [_2])',
 3551: 		    $display_part,$weight{$partid}).'</th>'."\n";
 3552: 	    next;
 3553: 	    
 3554: 	} else {
 3555: 	    if ($display =~ /Problem Status/) {
 3556: 		my $grade_status_mt = &mt('Grade Status');
 3557: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
 3558: 	    }
 3559: 	    my $part_mt = &mt('Part:');
 3560: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
 3561: 	}
 3562: 
 3563: 	$result.='<th>'.$display.'</th>'."\n";
 3564:     }
 3565:     $result.=&Apache::loncommon::end_data_table_header_row();
 3566: 
 3567:     my %last_resets = 
 3568: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
 3569: 
 3570:     #get info for each student
 3571:     #list all the students - with points and grade status
 3572:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 3573:     my $ctr = 0;
 3574:     foreach (sort 
 3575: 	     {
 3576: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3577: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3578: 		 }
 3579: 		 return $a cmp $b;
 3580: 	     } (keys(%$fullname))) {
 3581: 	$ctr++;
 3582: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
 3583: 				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
 3584:     }
 3585:     $result.=&Apache::loncommon::end_data_table();
 3586:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
 3587:     $result.='<input type="button" value="'.&mt('Save').'" '.
 3588: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
 3589:     if (scalar(%$fullname) eq 0) {
 3590: 	my $colspan=3+scalar(@parts);
 3591: 	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3592:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
 3593: 	$result='<span class="LC_warning">'.
 3594: 	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
 3595: 	        $section_display, $stu_status).
 3596: 	    '</span>';
 3597:     }
 3598:     $result.=&show_grading_menu_form($symb);
 3599:     return $result;
 3600: }
 3601: 
 3602: #--- call by previous routine to display each student
 3603: sub viewstudentgrade {
 3604:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
 3605:     my ($uname,$udom) = split(/:/,$student);
 3606:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
 3607:     my %aggregates = (); 
 3608:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
 3609: 	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
 3610: 	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
 3611: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 3612: 	'\');" target="_self">'.$fullname.'</a> '.
 3613: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
 3614:     $student=~s/:/_/; # colon doen't work in javascript for names
 3615:     foreach my $apart (@$parts) {
 3616: 	my ($part,$type) = &split_part_type($apart);
 3617: 	my $score=$record{"resource.$part.$type"};
 3618:         $result.='<td align="center">';
 3619:         my ($aggtries,$totaltries);
 3620:         unless (exists($aggregates{$part})) {
 3621: 	    $totaltries = $record{'resource.'.$part.'.tries'};
 3622: 
 3623: 	    $aggtries = $totaltries;
 3624:             if ($$last_resets{$part}) {  
 3625:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
 3626: 					   $part);
 3627:             }
 3628:             $result.='<input type="hidden" name="'.
 3629:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
 3630:             $result.='<input type="hidden" name="'.
 3631:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
 3632:             $aggregates{$part} = 1;
 3633:         }
 3634: 	if ($type eq 'awarded') {
 3635: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
 3636: 	    $result.='<input type="hidden" name="'.
 3637: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
 3638: 	    $result.='<input type="text" name="'.
 3639: 		'GD_'.$student.'_'.$part.'_awarded" '.
 3640:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
 3641: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
 3642: 	} elsif ($type eq 'solved') {
 3643: 	    my ($status,$foo)=split(/_/,$score,2);
 3644: 	    $status = 'nothing' if ($status eq '');
 3645: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
 3646: 		$part.'_solved_s" value="'.$status.'" />'."\n";
 3647: 	    $result.='&nbsp;<select name="'.
 3648: 		'GD_'.$student.'_'.$part.'_solved" '.
 3649:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
 3650: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
 3651: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
 3652: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
 3653: 	    $result.="</select>&nbsp;</td>\n";
 3654: 	} else {
 3655: 	    $result.='<input type="hidden" name="'.
 3656: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
 3657: 		    "\n";
 3658: 	    $result.='<input type="text" name="'.
 3659: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
 3660: 		'value="'.$score.'" size="4" /></td>'."\n";
 3661: 	}
 3662:     }
 3663:     $result.=&Apache::loncommon::end_data_table_row();
 3664:     return $result;
 3665: }
 3666: 
 3667: #--- change scores for all the students in a section/class
 3668: #    record does not get update if unchanged
 3669: sub editgrades {
 3670:     my ($request) = @_;
 3671: 
 3672:     my $symb=&get_symb($request);
 3673:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3674:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
 3675:     $title.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
 3676:     $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
 3677: 
 3678:     my $result= &Apache::loncommon::start_data_table().
 3679: 	&Apache::loncommon::start_data_table_header_row().
 3680: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
 3681: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
 3682:     my %scoreptr = (
 3683: 		    'correct'  =>'correct_by_override',
 3684: 		    'incorrect'=>'incorrect_by_override',
 3685: 		    'excused'  =>'excused',
 3686: 		    'ungraded' =>'ungraded_attempted',
 3687:                     'credited' =>'credit_attempted',
 3688: 		    'nothing'  => '',
 3689: 		    );
 3690:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 3691: 
 3692:     my (@partid);
 3693:     my %weight = ();
 3694:     my %columns = ();
 3695:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
 3696: 
 3697:     my $partserror;
 3698:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3699:     if ($partserror) {
 3700:         return &navmap_errormsg();
 3701:     }
 3702:     my $header;
 3703:     while ($ctr < $env{'form.totalparts'}) {
 3704: 	my $partid = $env{'form.partid_'.$ctr};
 3705: 	push(@partid,$partid);
 3706: 	$weight{$partid} = $env{'form.weight_'.$partid};
 3707: 	$ctr++;
 3708:     }
 3709:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3710:     foreach my $partid (@partid) {
 3711: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
 3712: 	    '<th align="center">'.&mt('New Score').'</th>';
 3713: 	$columns{$partid}=2;
 3714: 	foreach my $stores (@parts) {
 3715: 	    my ($part,$type) = &split_part_type($stores);
 3716: 	    if ($part !~ m/^\Q$partid\E/) { next;}
 3717: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
 3718: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
 3719: 	    $display =~ s/\[Part: \Q$part\E\]//;
 3720:             my $narrowtext = &mt('Tries');
 3721: 	    $display =~ s/Number of Attempts/$narrowtext/;
 3722: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
 3723: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
 3724: 	    $columns{$partid}+=2;
 3725: 	}
 3726:     }
 3727:     foreach my $partid (@partid) {
 3728: 	my $display_part=&get_display_part($partid,$symb);
 3729: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
 3730: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
 3731: 	    '</th>';
 3732: 
 3733:     }
 3734:     $result .= &Apache::loncommon::end_data_table_header_row().
 3735: 	&Apache::loncommon::start_data_table_header_row().
 3736: 	$header.
 3737: 	&Apache::loncommon::end_data_table_header_row();
 3738:     my @noupdate;
 3739:     my ($updateCtr,$noupdateCtr) = (1,1);
 3740:     for ($i=0; $i<$env{'form.total'}; $i++) {
 3741: 	my $line;
 3742: 	my $user = $env{'form.ctr'.$i};
 3743: 	my ($uname,$udom)=split(/:/,$user);
 3744: 	my %newrecord;
 3745: 	my $updateflag = 0;
 3746: 	$line .= '<td>'.&nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
 3747: 	my $usec=$classlist->{"$uname:$udom"}[5];
 3748: 	if (!&canmodify($usec)) {
 3749: 	    my $numcols=scalar(@partid)*4+2;
 3750: 	    push(@noupdate,
 3751: 		 $line."<td colspan=\"$numcols\"><span class=\"LC_warning\">".
 3752: 		 &mt('Not allowed to modify student')."</span></td></tr>");
 3753: 	    next;
 3754: 	}
 3755:         my %aggregate = ();
 3756:         my $aggregateflag = 0;
 3757: 	$user=~s/:/_/; # colon doen't work in javascript for names
 3758: 	foreach (@partid) {
 3759: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 3760: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
 3761: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
 3762: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3763: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 3764: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 3765: 	    my $partial   = $awarded eq '' ? '' : $pcr;
 3766: 	    my $score;
 3767: 	    if ($partial eq '') {
 3768: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3769: 	    } elsif ($partial > 0) {
 3770: 		$score = 'correct_by_override';
 3771: 	    } elsif ($partial == 0) {
 3772: 		$score = 'incorrect_by_override';
 3773: 	    }
 3774: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
 3775: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
 3776: 
 3777: 	    $newrecord{'resource.'.$_.'.regrader'}=
 3778: 		"$env{'user.name'}:$env{'user.domain'}";
 3779: 	    if ($dropMenu eq 'reset status' &&
 3780: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
 3781: 		$newrecord{'resource.'.$_.'.tries'} = '';
 3782: 		$newrecord{'resource.'.$_.'.solved'} = '';
 3783: 		$newrecord{'resource.'.$_.'.award'} = '';
 3784: 		$newrecord{'resource.'.$_.'.awarded'} = '';
 3785: 		$updateflag = 1;
 3786:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
 3787:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
 3788:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
 3789:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
 3790:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 3791:                     $aggregateflag = 1;
 3792:                 }
 3793: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
 3794: 		$updateflag = 1;
 3795: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
 3796: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
 3797: 		$rec_update++;
 3798: 	    }
 3799: 
 3800: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3801: 		'<td align="center">'.$awarded.
 3802: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
 3803: 
 3804: 
 3805: 	    my $partid=$_;
 3806: 	    foreach my $stores (@parts) {
 3807: 		my ($part,$type) = &split_part_type($stores);
 3808: 		if ($part !~ m/^\Q$partid\E/) { next;}
 3809: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
 3810: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
 3811: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
 3812: 		if ($awarded ne '' && $awarded ne $old_aw) {
 3813: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
 3814: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 3815: 		    $updateflag=1;
 3816: 		}
 3817: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3818: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
 3819: 	    }
 3820: 	}
 3821: 	$line.="\n";
 3822: 
 3823: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3824: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3825: 
 3826: 	if ($updateflag) {
 3827: 	    $count++;
 3828: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
 3829: 				    $udom,$uname);
 3830: 
 3831: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
 3832: 					      $cnum,$udom,$uname)) {
 3833: 		# need to figure out if should be in queue.
 3834: 		my %record =  
 3835: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
 3836: 					     $udom,$uname);
 3837: 		my $all_graded = 1;
 3838: 		my $none_graded = 1;
 3839: 		foreach my $part (@parts) {
 3840: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
 3841: 			$all_graded = 0;
 3842: 		    } else {
 3843: 			$none_graded = 0;
 3844: 		    }
 3845: 		}
 3846: 
 3847: 		if ($all_graded || $none_graded) {
 3848: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 3849: 							   $symb,$cdom,$cnum,
 3850: 							   $udom,$uname);
 3851: 		}
 3852: 	    }
 3853: 
 3854: 	    $result.=&Apache::loncommon::start_data_table_row().
 3855: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 3856: 		&Apache::loncommon::end_data_table_row();
 3857: 	    $updateCtr++;
 3858: 	} else {
 3859: 	    push(@noupdate,
 3860: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
 3861: 	    $noupdateCtr++;
 3862: 	}
 3863:         if ($aggregateflag) {
 3864:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3865: 				  $cdom,$cnum);
 3866:         }
 3867:     }
 3868:     if (@noupdate) {
 3869: #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
 3870: 	my $numcols=scalar(@partid)*4+2;
 3871: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
 3872: 	    '<td align="center" colspan="'.$numcols.'">'.
 3873: 	    &mt('No Changes Occurred For the Students Below').
 3874: 	    '</td>'.
 3875: 	    &Apache::loncommon::end_data_table_row();
 3876: 	foreach my $line (@noupdate) {
 3877: 	    $result.=
 3878: 		&Apache::loncommon::start_data_table_row().
 3879: 		$line.
 3880: 		&Apache::loncommon::end_data_table_row();
 3881: 	}
 3882:     }
 3883:     $result .= &Apache::loncommon::end_data_table().
 3884: 	&show_grading_menu_form($symb);
 3885:     my $msg = '<p><b>'.
 3886: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
 3887: 	    $rec_update,$count).'</b><br />'.
 3888: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
 3889: 	'</b></p>';
 3890:     return $title.$msg.$result;
 3891: }
 3892: 
 3893: sub split_part_type {
 3894:     my ($partstr) = @_;
 3895:     my ($temp,@allparts)=split(/_/,$partstr);
 3896:     my $type=pop(@allparts);
 3897:     my $part=join('_',@allparts);
 3898:     return ($part,$type);
 3899: }
 3900: 
 3901: #------------- end of section for handling grading by section/class ---------
 3902: #
 3903: #----------------------------------------------------------------------------
 3904: 
 3905: 
 3906: #----------------------------------------------------------------------------
 3907: #
 3908: #-------------------------- Next few routines handles grading by csv upload
 3909: #
 3910: #--- Javascript to handle csv upload
 3911: sub csvupload_javascript_reverse_associate {
 3912:     my $error1=&mt('You need to specify the username or the student/employee ID');
 3913:     my $error2=&mt('You need to specify at least one grading field');
 3914:   return(<<ENDPICK);
 3915:   function verify(vf) {
 3916:     var foundsomething=0;
 3917:     var founduname=0;
 3918:     var foundID=0;
 3919:     for (i=0;i<=vf.nfields.value;i++) {
 3920:       tw=eval('vf.f'+i+'.selectedIndex');
 3921:       if (i==0 && tw!=0) { foundID=1; }
 3922:       if (i==1 && tw!=0) { founduname=1; }
 3923:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
 3924:     }
 3925:     if (founduname==0 && foundID==0) {
 3926: 	alert('$error1');
 3927: 	return;
 3928:     }
 3929:     if (foundsomething==0) {
 3930: 	alert('$error2');
 3931: 	return;
 3932:     }
 3933:     vf.submit();
 3934:   }
 3935:   function flip(vf,tf) {
 3936:     var nw=eval('vf.f'+tf+'.selectedIndex');
 3937:     var i;
 3938:     for (i=0;i<=vf.nfields.value;i++) {
 3939:       //can not pick the same destination field for both name and domain
 3940:       if (((i ==0)||(i ==1)) && 
 3941:           ((tf==0)||(tf==1)) && 
 3942:           (i!=tf) &&
 3943:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
 3944:         eval('vf.f'+i+'.selectedIndex=0;')
 3945:       }
 3946:     }
 3947:   }
 3948: ENDPICK
 3949: }
 3950: 
 3951: sub csvupload_javascript_forward_associate {
 3952:     my $error1=&mt('You need to specify the username or the student/employee ID');
 3953:     my $error2=&mt('You need to specify at least one grading field');
 3954:   return(<<ENDPICK);
 3955:   function verify(vf) {
 3956:     var foundsomething=0;
 3957:     var founduname=0;
 3958:     var foundID=0;
 3959:     for (i=0;i<=vf.nfields.value;i++) {
 3960:       tw=eval('vf.f'+i+'.selectedIndex');
 3961:       if (tw==1) { foundID=1; }
 3962:       if (tw==2) { founduname=1; }
 3963:       if (tw>3) { foundsomething=1; }
 3964:     }
 3965:     if (founduname==0 && foundID==0) {
 3966: 	alert('$error1');
 3967: 	return;
 3968:     }
 3969:     if (foundsomething==0) {
 3970: 	alert('$error2');
 3971: 	return;
 3972:     }
 3973:     vf.submit();
 3974:   }
 3975:   function flip(vf,tf) {
 3976:     var nw=eval('vf.f'+tf+'.selectedIndex');
 3977:     var i;
 3978:     //can not pick the same destination field twice
 3979:     for (i=0;i<=vf.nfields.value;i++) {
 3980:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
 3981:         eval('vf.f'+i+'.selectedIndex=0;')
 3982:       }
 3983:     }
 3984:   }
 3985: ENDPICK
 3986: }
 3987: 
 3988: sub csvuploadmap_header {
 3989:     my ($request,$symb,$datatoken,$distotal)= @_;
 3990:     my $javascript;
 3991:     if ($env{'form.upfile_associate'} eq 'reverse') {
 3992: 	$javascript=&csvupload_javascript_reverse_associate();
 3993:     } else {
 3994: 	$javascript=&csvupload_javascript_forward_associate();
 3995:     }
 3996: 
 3997:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 3998:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
 3999:     my $ignore=&mt('Ignore First Line');
 4000:     $symb = &Apache::lonenc::check_encrypt($symb);
 4001:     $request->print(<<ENDPICK);
 4002: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4003: <h3><span class="LC_info">Uploading Class Grades</span></h3>
 4004: $result
 4005: <hr />
 4006: <h3>Identify fields</h3>
 4007: Total number of records found in file: $distotal <hr />
 4008: Enter as many fields as you can. The system will inform you and bring you back
 4009: to this page if the data selected is insufficient to run your class.<hr />
 4010: <input type="button" value="Reverse Association" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
 4011: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 4012: <input type="hidden" name="associate"  value="" />
 4013: <input type="hidden" name="phase"      value="three" />
 4014: <input type="hidden" name="datatoken"  value="$datatoken" />
 4015: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 4016: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 4017: <input type="hidden" name="upfile_associate" 
 4018:                                        value="$env{'form.upfile_associate'}" />
 4019: <input type="hidden" name="symb"       value="$symb" />
 4020: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4021: <input type="hidden" name="probTitle"  value="$env{'form.probTitle'}" />
 4022: <input type="hidden" name="command"    value="csvuploadoptions" />
 4023: <hr />
 4024: <script type="text/javascript" language="Javascript">
 4025: $javascript
 4026: </script>
 4027: ENDPICK
 4028:     return '';
 4029: 
 4030: }
 4031: 
 4032: sub csvupload_fields {
 4033:     my ($symb,$errorref) = @_;
 4034:     my (@parts) = &getpartlist($symb,$errorref);
 4035:     if (ref($errorref)) {
 4036:         if ($$errorref) {
 4037:             return;
 4038:         }
 4039:     }
 4040: 
 4041:     my @fields=(['ID','Student/Employee ID'],
 4042: 		['username','Student Username'],
 4043: 		['domain','Student Domain']);
 4044:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4045:     foreach my $part (sort(@parts)) {
 4046: 	my @datum;
 4047: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 4048: 	my $name=$part;
 4049: 	if  (!$display) { $display = $name; }
 4050: 	@datum=($name,$display);
 4051: 	if ($name=~/^stores_(.*)_awarded/) {
 4052: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
 4053: 	}
 4054: 	push(@fields,\@datum);
 4055:     }
 4056:     return (@fields);
 4057: }
 4058: 
 4059: sub csvuploadmap_footer {
 4060:     my ($request,$i,$keyfields) =@_;
 4061:     $request->print(<<ENDPICK);
 4062: </table>
 4063: <input type="hidden" name="nfields" value="$i" />
 4064: <input type="hidden" name="keyfields" value="$keyfields" />
 4065: <input type="button" onclick="javascript:verify(this.form)" value="Assign Grades" /><br />
 4066: </form>
 4067: ENDPICK
 4068: }
 4069: 
 4070: sub checkforfile_js {
 4071:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 4072:     my $result =<<CSVFORMJS;
 4073: <script type="text/javascript" language="javascript">
 4074:     function checkUpload(formname) {
 4075: 	if (formname.upfile.value == "") {
 4076: 	    alert("$alertmsg");
 4077: 	    return false;
 4078: 	}
 4079: 	formname.submit();
 4080:     }
 4081:     </script>
 4082: CSVFORMJS
 4083:     return $result;
 4084: }
 4085: 
 4086: sub upcsvScores_form {
 4087:     my ($request) = shift;
 4088:     my ($symb)=&get_symb($request);
 4089:     if (!$symb) {return '';}
 4090:     my $result=&checkforfile_js();
 4091:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 4092:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 4093:     $result.=$table;
 4094:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 4095:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 4096:     $result.='&nbsp;<b>'.&mt('Specify a file containing the class scores for current resource.').
 4097: 	'</b></td></tr>'."\n";
 4098:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
 4099:     my $upload=&mt("Upload Scores");
 4100:     my $upfile_select=&Apache::loncommon::upfile_select_html();
 4101:     my $ignore=&mt('Ignore First Line');
 4102:     $symb = &Apache::lonenc::check_encrypt($symb);
 4103:     $result.=<<ENDUPFORM;
 4104: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4105: <input type="hidden" name="symb" value="$symb" />
 4106: <input type="hidden" name="command" value="csvuploadmap" />
 4107: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 4108: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 4109: $upfile_select
 4110: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 4111: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
 4112: </form>
 4113: ENDUPFORM
 4114:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 4115:                            &mt("How do I create a CSV file from a spreadsheet"))
 4116:     .'</td></tr></table>'."\n";
 4117:     $result.='</td></tr></table><br /><br />'."\n";
 4118:     $result.=&show_grading_menu_form($symb);
 4119:     return $result;
 4120: }
 4121: 
 4122: 
 4123: sub csvuploadmap {
 4124:     my ($request)= @_;
 4125:     my ($symb)=&get_symb($request);
 4126:     if (!$symb) {return '';}
 4127: 
 4128:     my $datatoken;
 4129:     if (!$env{'form.datatoken'}) {
 4130: 	$datatoken=&Apache::loncommon::upfile_store($request);
 4131:     } else {
 4132: 	$datatoken=$env{'form.datatoken'};
 4133: 	&Apache::loncommon::load_tmp_file($request);
 4134:     }
 4135:     my @records=&Apache::loncommon::upfile_record_sep();
 4136:     if ($env{'form.noFirstLine'}) { shift(@records); }
 4137:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
 4138:     my ($i,$keyfields);
 4139:     if (@records) {
 4140:         my $fieldserror;
 4141: 	my @fields=&csvupload_fields($symb,\$fieldserror);
 4142:         if ($fieldserror) {
 4143:             $request->print(&navmap_errormsg());
 4144:             return;
 4145:         }
 4146: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 4147: 	    &Apache::loncommon::csv_print_samples($request,\@records);
 4148: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
 4149: 							  \@fields);
 4150: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 4151: 	    chop($keyfields);
 4152: 	} else {
 4153: 	    unshift(@fields,['none','']);
 4154: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
 4155: 							    \@fields);
 4156:             foreach my $rec (@records) {
 4157:                 my %temp = &Apache::loncommon::record_sep($rec);
 4158:                 if (%temp) {
 4159:                     $keyfields=join(',',sort(keys(%temp)));
 4160:                     last;
 4161:                 }
 4162:             }
 4163: 	}
 4164:     }
 4165:     &csvuploadmap_footer($request,$i,$keyfields);
 4166:     $request->print(&show_grading_menu_form($symb));
 4167: 
 4168:     return '';
 4169: }
 4170: 
 4171: sub csvuploadoptions {
 4172:     my ($request)= @_;
 4173:     my ($symb)=&get_symb($request);
 4174:     my $checked=(($env{'form.noFirstLine'})?'1':'0');
 4175:     my $ignore=&mt('Ignore First Line');
 4176:     $request->print(<<ENDPICK);
 4177: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4178: <h3><span class="LC_info">Uploading Class Grade Options</span></h3>
 4179: <input type="hidden" name="command"    value="csvuploadassign" />
 4180: <!--
 4181: <p>
 4182: <label>
 4183:    <input type="checkbox" name="show_full_results" />
 4184:    Show a table of all changes
 4185: </label>
 4186: </p>
 4187: -->
 4188: <p>
 4189: <label>
 4190:    <input type="checkbox" name="overwite_scores" checked="checked" />
 4191:    Overwrite any existing score
 4192: </label>
 4193: </p>
 4194: ENDPICK
 4195:     my %fields=&get_fields();
 4196:     if (!defined($fields{'domain'})) {
 4197: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
 4198: 	$request->print("\n<p> Users are in domain: ".$domform."</p>\n");
 4199:     }
 4200:     foreach my $key (sort(keys(%env))) {
 4201: 	if ($key !~ /^form\.(.*)$/) { next; }
 4202: 	my $cleankey=$1;
 4203: 	if ($cleankey eq 'command') { next; }
 4204: 	$request->print('<input type="hidden" name="'.$cleankey.
 4205: 			'"  value="'.$env{$key}.'" />'."\n");
 4206:     }
 4207:     # FIXME do a check for any duplicated user ids...
 4208:     # FIXME do a check for any invalid user ids?...
 4209:     $request->print('<input type="submit" value="Assign Grades" /><br />
 4210: <hr /></form>'."\n");
 4211:     $request->print(&show_grading_menu_form($symb));
 4212:     return '';
 4213: }
 4214: 
 4215: sub get_fields {
 4216:     my %fields;
 4217:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 4218:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 4219: 	if ($env{'form.upfile_associate'} eq 'reverse') {
 4220: 	    if ($env{'form.f'.$i} ne 'none') {
 4221: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
 4222: 	    }
 4223: 	} else {
 4224: 	    if ($env{'form.f'.$i} ne 'none') {
 4225: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
 4226: 	    }
 4227: 	}
 4228:     }
 4229:     return %fields;
 4230: }
 4231: 
 4232: sub csvuploadassign {
 4233:     my ($request)= @_;
 4234:     my ($symb)=&get_symb($request);
 4235:     if (!$symb) {return '';}
 4236:     my $error_msg = '';
 4237:     &Apache::loncommon::load_tmp_file($request);
 4238:     my @gradedata = &Apache::loncommon::upfile_record_sep();
 4239:     if ($env{'form.noFirstLine'}) { shift(@gradedata); }
 4240:     my %fields=&get_fields();
 4241:     $request->print('<h3>Assigning Grades</h3>');
 4242:     my $courseid=$env{'request.course.id'};
 4243:     my ($classlist) = &getclasslist('all',0);
 4244:     my @notallowed;
 4245:     my @skipped;
 4246:     my @warnings;
 4247:     my $countdone=0;
 4248:     foreach my $grade (@gradedata) {
 4249: 	my %entries=&Apache::loncommon::record_sep($grade);
 4250: 	my $domain;
 4251: 	if ($entries{$fields{'domain'}}) {
 4252: 	    $domain=$entries{$fields{'domain'}};
 4253: 	} else {
 4254: 	    $domain=$env{'form.default_domain'};
 4255: 	}
 4256: 	$domain=~s/\s//g;
 4257: 	my $username=$entries{$fields{'username'}};
 4258: 	$username=~s/\s//g;
 4259: 	if (!$username) {
 4260: 	    my $id=$entries{$fields{'ID'}};
 4261: 	    $id=~s/\s//g;
 4262: 	    my %ids=&Apache::lonnet::idget($domain,$id);
 4263: 	    $username=$ids{$id};
 4264: 	}
 4265: 	if (!exists($$classlist{"$username:$domain"})) {
 4266: 	    my $id=$entries{$fields{'ID'}};
 4267: 	    $id=~s/\s//g;
 4268: 	    if ($id) {
 4269: 		push(@skipped,"$id:$domain");
 4270: 	    } else {
 4271: 		push(@skipped,"$username:$domain");
 4272: 	    }
 4273: 	    next;
 4274: 	}
 4275: 	my $usec=$classlist->{"$username:$domain"}[5];
 4276: 	if (!&canmodify($usec)) {
 4277: 	    push(@notallowed,"$username:$domain");
 4278: 	    next;
 4279: 	}
 4280: 	my %points;
 4281: 	my %grades;
 4282: 	foreach my $dest (keys(%fields)) {
 4283: 	    if ($dest eq 'ID' || $dest eq 'username' ||
 4284: 		$dest eq 'domain') { next; }
 4285: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
 4286: 	    if ($dest=~/stores_(.*)_points/) {
 4287: 		my $part=$1;
 4288: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 4289: 					      $symb,$domain,$username);
 4290:                 if ($wgt) {
 4291:                     $entries{$fields{$dest}}=~s/\s//g;
 4292:                     my $pcr=$entries{$fields{$dest}} / $wgt;
 4293:                     my $award=($pcr == 0) ? 'incorrect_by_override'
 4294:                                           : 'correct_by_override';
 4295:                     if ($pcr>1) {
 4296:                         push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
 4297:                     }
 4298:                     $grades{"resource.$part.awarded"}=$pcr;
 4299:                     $grades{"resource.$part.solved"}=$award;
 4300:                     $points{$part}=1;
 4301:                 } else {
 4302:                     $error_msg = "<br />" .
 4303:                         &mt("Some point values were assigned"
 4304:                             ." for problems with a weight "
 4305:                             ."of zero. These values were "
 4306:                             ."ignored.");
 4307:                 }
 4308: 	    } else {
 4309: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 4310: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 4311: 		my $store_key=$dest;
 4312: 		$store_key=~s/^stores/resource/;
 4313: 		$store_key=~s/_/\./g;
 4314: 		$grades{$store_key}=$entries{$fields{$dest}};
 4315: 	    }
 4316: 	}
 4317: 	if (! %grades) { 
 4318:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
 4319:         } else {
 4320: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 4321: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
 4322: 					   $env{'request.course.id'},
 4323: 					   $domain,$username);
 4324: 	   if ($result eq 'ok') {
 4325: 	      $request->print('.');
 4326: # Remove from grading queue
 4327:               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
 4328:                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
 4329:                                              $env{'course.'.$env{'request.course.id'}.'.num'},
 4330:                                              $domain,$username);
 4331: 	   } else {
 4332: 	      $request->print("<p><span class=\"LC_error\">".
 4333:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
 4334:                                   "$username:$domain",$result)."</span></p>");
 4335: 	   }
 4336: 	   $request->rflush();
 4337: 	   $countdone++;
 4338:         }
 4339:     }
 4340:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
 4341:     if (@warnings) {
 4342:         $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
 4343:         $request->print(join(', ',@warnings));
 4344:     }
 4345:     if (@skipped) {
 4346: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
 4347:         $request->print(join(', ',@skipped));
 4348:     }
 4349:     if (@notallowed) {
 4350: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
 4351: 	$request->print(join(', ',@notallowed));
 4352:     }
 4353:     $request->print("<br />\n");
 4354:     $request->print(&show_grading_menu_form($symb));
 4355:     return $error_msg;
 4356: }
 4357: #------------- end of section for handling csv file upload ---------
 4358: #
 4359: #-------------------------------------------------------------------
 4360: #
 4361: #-------------- Next few routines handle grading by page/sequence
 4362: #
 4363: #--- Select a page/sequence and a student to grade
 4364: sub pickStudentPage {
 4365:     my ($request) = shift;
 4366: 
 4367:     my $alertmsg = &mt('Please select the student you wish to grade.');
 4368:     $request->print(<<LISTJAVASCRIPT);
 4369: <script type="text/javascript" language="javascript">
 4370: 
 4371: function checkPickOne(formname) {
 4372:     if (radioSelection(formname.student) == null) {
 4373: 	alert("$alertmsg");
 4374: 	return;
 4375:     }
 4376:     ptr = pullDownSelection(formname.selectpage);
 4377:     formname.page.value = formname["page"+ptr].value;
 4378:     formname.title.value = formname["title"+ptr].value;
 4379:     formname.submit();
 4380: }
 4381: 
 4382: </script>
 4383: LISTJAVASCRIPT
 4384:     &commonJSfunctions($request);
 4385:     my ($symb) = &get_symb($request);
 4386:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4387:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4388:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4389: 
 4390:     my $result='<h3><span class="LC_info">&nbsp;'.
 4391: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
 4392: 
 4393:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
 4394:     my $map_error;
 4395:     my ($titles,$symbx) = &getSymbMap($map_error);
 4396:     if ($map_error) {
 4397:         $request->print(&navmap_errormsg());
 4398:         return; 
 4399:     }
 4400:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 4401: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 4402: #    my $type=($curpage =~ /\.(page|sequence)/);
 4403:     my $select = '<select name="selectpage">'."\n";
 4404:     my $ctr=0;
 4405:     foreach (@$titles) {
 4406: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4407: 	$select.='<option value="'.$ctr.'" '.
 4408: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 4409: 	    '>'.$showtitle.'</option>'."\n";
 4410: 	$ctr++;
 4411:     }
 4412:     $select.= '</select>';
 4413:     $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
 4414: 
 4415:     $ctr=0;
 4416:     foreach (@$titles) {
 4417: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4418: 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
 4419: 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
 4420: 	$ctr++;
 4421:     }
 4422:     $result.='<input type="hidden" name="page" />'."\n".
 4423: 	'<input type="hidden" name="title" />'."\n";
 4424: 
 4425:     my $options =
 4426: 	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
 4427: 	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
 4428:     $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
 4429: 
 4430:     $options =
 4431: 	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
 4432: 	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
 4433: 	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
 4434:     $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
 4435:     
 4436:     $result.=&build_section_inputs();
 4437:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 4438:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
 4439: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
 4440: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4441: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."<br />\n";
 4442: 
 4443:     $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
 4444: 
 4445:     $result.='&nbsp;<input type="button" '.
 4446:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 4447: 
 4448:     $request->print($result);
 4449: 
 4450:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
 4451: 	&Apache::loncommon::start_data_table().
 4452: 	&Apache::loncommon::start_data_table_header_row().
 4453: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4454: 	'<th>'.&nameUserString('header').'</th>'.
 4455: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4456: 	'<th>'.&nameUserString('header').'</th>'.
 4457: 	&Apache::loncommon::end_data_table_header_row();
 4458:  
 4459:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
 4460:     my $ptr = 1;
 4461:     foreach my $student (sort 
 4462: 			 {
 4463: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 4464: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 4465: 			     }
 4466: 			     return $a cmp $b;
 4467: 			 } (keys(%$fullname))) {
 4468: 	my ($uname,$udom) = split(/:/,$student);
 4469: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
 4470:                                   : '</td>');
 4471: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
 4472: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
 4473: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
 4474: 	$studentTable.=
 4475: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
 4476:                          : '');
 4477: 	$ptr++;
 4478:     }
 4479:     if ($ptr%2 == 0) {
 4480: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
 4481: 	    &Apache::loncommon::end_data_table_row();
 4482:     }
 4483:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
 4484:     $studentTable.='<input type="button" '.
 4485:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
 4486: 
 4487:     $studentTable.=&show_grading_menu_form($symb);
 4488:     $request->print($studentTable);
 4489: 
 4490:     return '';
 4491: }
 4492: 
 4493: sub getSymbMap {
 4494:     my ($map_error) = @_;
 4495:     my $navmap = Apache::lonnavmaps::navmap->new();
 4496:     unless (ref($navmap)) {
 4497:         if (ref($map_error)) {
 4498:             $$map_error = 'navmap';
 4499:         }
 4500:         return;
 4501:     }
 4502:     my %symbx = ();
 4503:     my @titles = ();
 4504:     my $minder = 0;
 4505: 
 4506:     # Gather every sequence that has problems.
 4507:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 4508: 					       1,0,1);
 4509:     for my $sequence ($navmap->getById('0.0'), @sequences) {
 4510: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
 4511: 	    my $title = $minder.'.'.
 4512: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 4513: 	    push(@titles, $title); # minder in case two titles are identical
 4514: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
 4515: 	    $minder++;
 4516: 	}
 4517:     }
 4518:     return \@titles,\%symbx;
 4519: }
 4520: 
 4521: #
 4522: #--- Displays a page/sequence w/wo problems, w/wo submissions
 4523: sub displayPage {
 4524:     my ($request) = shift;
 4525: 
 4526:     my ($symb) = &get_symb($request);
 4527:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4528:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4529:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4530:     my $pageTitle = $env{'form.page'};
 4531:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4532:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4533:     my $usec=$classlist->{$env{'form.student'}}[5];
 4534: 
 4535:     #need to make sure we have the correct data for later EXT calls, 
 4536:     #thus invalidate the cache
 4537:     &Apache::lonnet::devalidatecourseresdata(
 4538:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 4539:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 4540:     &Apache::lonnet::clear_EXT_cache_status();
 4541: 
 4542:     if (!&canview($usec)) {
 4543: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested student. ([_1])',$env{'form.student'}).'</span>');
 4544: 	$request->print(&show_grading_menu_form($symb));
 4545: 	return;
 4546:     }
 4547:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4548:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
 4549: 	'</h3>'."\n";
 4550:     $env{'form.CODE'} = uc($env{'form.CODE'});
 4551:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
 4552: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
 4553:     } else {
 4554: 	delete($env{'form.CODE'});
 4555:     }
 4556:     &sub_page_js($request);
 4557:     $request->print($result);
 4558: 
 4559:     my $navmap = Apache::lonnavmaps::navmap->new();
 4560:     unless (ref($navmap)) {
 4561:         $request->print(&navmap_errormsg());
 4562:         $request->print(&show_grading_menu_form($symb));
 4563:         return;
 4564:     }
 4565:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
 4566:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4567:     if (!$map) {
 4568: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
 4569: 	$request->print(&show_grading_menu_form($symb));
 4570: 	return; 
 4571:     }
 4572:     my $iterator = $navmap->getIterator($map->map_start(),
 4573: 					$map->map_finish());
 4574: 
 4575:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
 4576: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
 4577: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
 4578: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
 4579: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
 4580: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
 4581: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4582: 	'<input type="hidden" name="overRideScore" value="no" />'."\n".
 4583: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n";
 4584: 
 4585:     if (defined($env{'form.CODE'})) {
 4586: 	$studentTable.=
 4587: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
 4588:     }
 4589:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 4590: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 4591: 
 4592:     $studentTable.='&nbsp;<span class="LC_info">'.
 4593:         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
 4594:         '</span>'."\n".
 4595: 	&Apache::loncommon::start_data_table().
 4596: 	&Apache::loncommon::start_data_table_header_row().
 4597: 	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
 4598: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 4599: 	&Apache::loncommon::end_data_table_header_row();
 4600: 
 4601:     &Apache::lonxml::clear_problem_counter();
 4602:     my ($depth,$question,$prob) = (1,1,1);
 4603:     $iterator->next(); # skip the first BEGIN_MAP
 4604:     my $curRes = $iterator->next(); # for "current resource"
 4605:     while ($depth > 0) {
 4606:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4607:         if($curRes == $iterator->END_MAP) { $depth--; }
 4608: 
 4609:         if (ref($curRes) && $curRes->is_problem()) {
 4610: 	    my $parts = $curRes->parts();
 4611:             my $title = $curRes->compTitle();
 4612: 	    my $symbx = $curRes->symb();
 4613: 	    $studentTable.=
 4614: 		&Apache::loncommon::start_data_table_row().
 4615: 		'<td align="center" valign="top" >'.$prob.
 4616: 		(scalar(@{$parts}) == 1 ? '' 
 4617: 		                        : '<br />('.&mt('[_1]parts)',
 4618: 							scalar(@{$parts}).'&nbsp;')
 4619: 		 ).
 4620: 		 '</td>';
 4621: 	    $studentTable.='<td valign="top">';
 4622: 	    my %form = ('CODE' => $env{'form.CODE'},);
 4623: 	    if ($env{'form.vProb'} eq 'yes' ) {
 4624: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
 4625: 					     undef,'both',\%form);
 4626: 	    } else {
 4627: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
 4628: 		$companswer =~ s|<form(.*?)>||g;
 4629: 		$companswer =~ s|</form>||g;
 4630: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
 4631: #		    $companswer =~ s/$1/ /ms;
 4632: #		    $request->print('match='.$1."<br />\n");
 4633: #		}
 4634: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
 4635: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
 4636: 	    }
 4637: 
 4638: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 4639: 
 4640: 	    if ($env{'form.lastSub'} eq 'datesub') {
 4641: 		if ($record{'version'} eq '') {
 4642: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
 4643: 		} else {
 4644: 		    my %responseType = ();
 4645: 		    foreach my $partid (@{$parts}) {
 4646: 			my @responseIds =$curRes->responseIds($partid);
 4647: 			my @responseType =$curRes->responseType($partid);
 4648: 			my %responseIds;
 4649: 			for (my $i=0;$i<=$#responseIds;$i++) {
 4650: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
 4651: 			}
 4652: 			$responseType{$partid} = \%responseIds;
 4653: 		    }
 4654: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
 4655: 
 4656: 		}
 4657: 	    } elsif ($env{'form.lastSub'} eq 'all') {
 4658: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 4659: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 4660: 									$env{'request.course.id'},
 4661: 									'','.submission');
 4662:  
 4663: 	    }
 4664: 	    if (&canmodify($usec)) {
 4665:             $studentTable.=&gradeBox_start();
 4666: 		foreach my $partid (@{$parts}) {
 4667: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
 4668: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
 4669: 		    $question++;
 4670: 		}
 4671:             $studentTable.=&gradeBox_end();
 4672: 		$prob++;
 4673: 	    }
 4674: 	    $studentTable.='</td></tr>';
 4675: 
 4676: 	}
 4677:         $curRes = $iterator->next();
 4678:     }
 4679: 
 4680:     $studentTable.=
 4681:         '</table>'."\n".
 4682:         '<input type="button" value="'.&mt('Save').'" '.
 4683:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
 4684:         '</form>'."\n";
 4685:     $studentTable.=&show_grading_menu_form($symb);
 4686:     $request->print($studentTable);
 4687: 
 4688:     return '';
 4689: }
 4690: 
 4691: sub displaySubByDates {
 4692:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
 4693:     my $isCODE=0;
 4694:     my $isTask = ($symb =~/\.task$/);
 4695:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
 4696:     my $studentTable=&Apache::loncommon::start_data_table().
 4697: 	&Apache::loncommon::start_data_table_header_row().
 4698: 	'<th>'.&mt('Date/Time').'</th>'.
 4699: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
 4700: 	'<th>'.&mt('Submission').'</th>'.
 4701: 	'<th>'.&mt('Status').'</th>'.
 4702: 	&Apache::loncommon::end_data_table_header_row();
 4703:     my ($version);
 4704:     my %mark;
 4705:     my %orders;
 4706:     $mark{'correct_by_student'} = $checkIcon;
 4707:     if (!exists($$record{'1:timestamp'})) {
 4708: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
 4709:     }
 4710: 
 4711:     my $interaction;
 4712:     my $no_increment = 1;
 4713:     my %lastrndseed;
 4714:     for ($version=1;$version<=$$record{'version'};$version++) {
 4715: 	my $timestamp = 
 4716: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 4717: 	if (exists($$record{$version.':resource.0.version'})) {
 4718: 	    $interaction = $$record{$version.':resource.0.version'};
 4719: 	}
 4720: 
 4721: 	my $where = ($isTask ? "$version:resource.$interaction"
 4722: 		             : "$version:resource");
 4723: 	$studentTable.=&Apache::loncommon::start_data_table_row().
 4724: 	    '<td>'.$timestamp.'</td>';
 4725: 	if ($isCODE) {
 4726: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 4727: 	}
 4728: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 4729: 	my @displaySub = ();
 4730: 	foreach my $partid (@{$parts}) {
 4731:             my ($hidden,$type);
 4732:             $type = $$record{$version.':resource.'.$partid.'.type'};
 4733:             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
 4734:                 $hidden = 1;
 4735:             }
 4736: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
 4737: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
 4738: 	    
 4739: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 4740: 	    my $display_part=&get_display_part($partid,$symb);
 4741: 	    foreach my $matchKey (@matchKey) {
 4742: 		if (exists($$record{$version.':'.$matchKey}) &&
 4743: 		    $$record{$version.':'.$matchKey} ne '') {
 4744:                     
 4745: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 4746: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
 4747:                     $displaySub[0].='<span class="LC_nobreak"';
 4748:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
 4749:                                    .' <span class="LC_internal_info">'
 4750:                                    .'('.&mt('Response ID: [_1]',$responseId).')'
 4751:                                    .'</span>'
 4752:                                    .' <b>';
 4753:                     if ($hidden) {
 4754:                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
 4755:                     } else {
 4756:                         my ($trial,$rndseed,$newvariation);
 4757:                         if ($type eq 'randomizetry') {
 4758:                             $trial = $$record{"$where.$partid.tries"};
 4759:                             $rndseed = $$record{"$where.$partid.rndseed"};
 4760:                         }
 4761: 		        if ($$record{"$where.$partid.tries"} eq '') {
 4762: 			    $displaySub[0].=&mt('Trial not counted');
 4763: 		        } else {
 4764: 			    $displaySub[0].=&mt('Trial: [_1]',
 4765: 					    $$record{"$where.$partid.tries"});
 4766:                             if ($rndseed || $lastrndseed{$partid}) {
 4767:                                 if ($rndseed ne $lastrndseed{$partid}) {
 4768:                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
 4769:                                 }
 4770:                             }
 4771: 		        }
 4772: 		        my $responseType=($isTask ? 'Task'
 4773:                                               : $responseType->{$partid}->{$responseId});
 4774: 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
 4775: 		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
 4776: 			    $orders{$partid}->{$responseId}=
 4777: 			        &get_order($partid,$responseId,$symb,$uname,$udom,
 4778:                                            $no_increment,$type,$trial,$rndseed);
 4779: 		        }
 4780: 		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
 4781: 		        $displaySub[0].='&nbsp; '.
 4782: 			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
 4783:                     }
 4784: 		}
 4785: 	    }
 4786: 	    if (exists($$record{"$where.$partid.checkedin"})) {
 4787: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
 4788: 				    $$record{"$where.$partid.checkedin"},
 4789: 				    $$record{"$where.$partid.checkedin.slot"}).
 4790: 					'<br />';
 4791: 	    }
 4792: 	    if (exists $$record{"$where.$partid.award"}) {
 4793: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
 4794: 		    lc($$record{"$where.$partid.award"}).' '.
 4795: 		    $mark{$$record{"$where.$partid.solved"}}.
 4796: 		    '<br />';
 4797: 	    }
 4798: 	    if (exists $$record{"$where.$partid.regrader"}) {
 4799: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
 4800: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4801: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 4802: 		$displaySub[2].=
 4803: 		    $$record{"$version:resource.$partid.regrader"}.
 4804: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4805: 	    }
 4806: 	}
 4807: 	# needed because old essay regrader has not parts info
 4808: 	if (exists $$record{"$version:resource.regrader"}) {
 4809: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
 4810: 	}
 4811: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
 4812: 	if ($displaySub[2]) {
 4813: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
 4814: 	}
 4815: 	$studentTable.='&nbsp;</td>'.
 4816: 	    &Apache::loncommon::end_data_table_row();
 4817:     }
 4818:     $studentTable.=&Apache::loncommon::end_data_table();
 4819:     return $studentTable;
 4820: }
 4821: 
 4822: sub updateGradeByPage {
 4823:     my ($request) = shift;
 4824: 
 4825:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4826:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4827:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4828:     my $pageTitle = $env{'form.page'};
 4829:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4830:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4831:     my $usec=$classlist->{$env{'form.student'}}[5];
 4832:     if (!&canmodify($usec)) {
 4833: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
 4834: 	$request->print(&show_grading_menu_form($env{'form.symb'}));
 4835: 	return;
 4836:     }
 4837:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4838:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 4839: 	'</h3>'."\n";
 4840: 
 4841:     $request->print($result);
 4842: 
 4843: 
 4844:     my $navmap = Apache::lonnavmaps::navmap->new();
 4845:     unless (ref($navmap)) {
 4846:         $request->print(&navmap_errormsg());
 4847:         return;
 4848:     }
 4849:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
 4850:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4851:     if (!$map) {
 4852: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
 4853: 	my ($symb)=&get_symb($request);
 4854: 	$request->print(&show_grading_menu_form($symb));
 4855: 	return; 
 4856:     }
 4857:     my $iterator = $navmap->getIterator($map->map_start(),
 4858: 					$map->map_finish());
 4859: 
 4860:     my $studentTable=
 4861: 	&Apache::loncommon::start_data_table().
 4862: 	&Apache::loncommon::start_data_table_header_row().
 4863: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
 4864: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
 4865: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
 4866: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
 4867: 	&Apache::loncommon::end_data_table_header_row();
 4868: 
 4869:     $iterator->next(); # skip the first BEGIN_MAP
 4870:     my $curRes = $iterator->next(); # for "current resource"
 4871:     my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
 4872:     while ($depth > 0) {
 4873:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4874:         if($curRes == $iterator->END_MAP) { $depth--; }
 4875: 
 4876:         if (ref($curRes) && $curRes->is_problem()) {
 4877: 	    my $parts = $curRes->parts();
 4878:             my $title = $curRes->compTitle();
 4879: 	    my $symbx = $curRes->symb();
 4880: 	    $studentTable.=
 4881: 		&Apache::loncommon::start_data_table_row().
 4882: 		'<td align="center" valign="top" >'.$prob.
 4883: 		(scalar(@{$parts}) == 1 ? '' 
 4884:                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
 4885: 		.')').'</td>';
 4886: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 4887: 
 4888: 	    my %newrecord=();
 4889: 	    my @displayPts=();
 4890:             my %aggregate = ();
 4891:             my $aggregateflag = 0;
 4892: 	    foreach my $partid (@{$parts}) {
 4893: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 4894: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
 4895: 
 4896: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 4897: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
 4898: 		my $partial = $newpts/$wgt;
 4899: 		my $score;
 4900: 		if ($partial > 0) {
 4901: 		    $score = 'correct_by_override';
 4902: 		} elsif ($newpts ne '') { #empty is taken as 0
 4903: 		    $score = 'incorrect_by_override';
 4904: 		}
 4905: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
 4906: 		if ($dropMenu eq 'excused') {
 4907: 		    $partial = '';
 4908: 		    $score = 'excused';
 4909: 		} elsif ($dropMenu eq 'reset status'
 4910: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 4911: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
 4912: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
 4913: 		    $newrecord{'resource.'.$partid.'.award'} = '';
 4914: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
 4915: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
 4916: 		    $changeflag++;
 4917: 		    $newpts = '';
 4918:                     
 4919:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
 4920:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
 4921:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
 4922:                     if ($aggtries > 0) {
 4923:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 4924:                         $aggregateflag = 1;
 4925:                     }
 4926: 		}
 4927: 		my $display_part=&get_display_part($partid,$curRes->symb());
 4928: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
 4929: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 4930: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
 4931: 		    '&nbsp;<br />';
 4932: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 4933: 		     (($score eq 'excused') ? 'excused' : $newpts).
 4934: 		    '&nbsp;<br />';
 4935: 		$question++;
 4936: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 4937: 
 4938: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
 4939: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
 4940: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
 4941: 		    if (scalar(keys(%newrecord)) > 0);
 4942: 
 4943: 		$changeflag++;
 4944: 	    }
 4945: 	    if (scalar(keys(%newrecord)) > 0) {
 4946: 		my %record = 
 4947: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
 4948: 					     $udom,$uname);
 4949: 
 4950: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
 4951: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
 4952: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
 4953: 		    $newrecord{'resource.CODE'} = '';
 4954: 		}
 4955: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
 4956: 					$udom,$uname);
 4957: 		%record = &Apache::lonnet::restore($symbx,
 4958: 						   $env{'request.course.id'},
 4959: 						   $udom,$uname);
 4960: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
 4961: 					     $cdom,$cnum,$udom,$uname);
 4962: 	    }
 4963: 	    
 4964:             if ($aggregateflag) {
 4965:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 4966:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
 4967:                       $env{'course.'.$env{'request.course.id'}.'.num'});
 4968:             }
 4969: 
 4970: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
 4971: 		'<td valign="top">'.$displayPts[1].'</td>'.
 4972: 		&Apache::loncommon::end_data_table_row();
 4973: 
 4974: 	    $prob++;
 4975: 	}
 4976:         $curRes = $iterator->next();
 4977:     }
 4978: 
 4979:     $studentTable.=&Apache::loncommon::end_data_table();
 4980:     $studentTable.=&show_grading_menu_form($env{'form.symb'});
 4981:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 4982: 		  &mt('The scores were changed for [quant,_1,problem].',
 4983: 		  $changeflag));
 4984:     $request->print($grademsg.$studentTable);
 4985: 
 4986:     return '';
 4987: }
 4988: 
 4989: #-------- end of section for handling grading by page/sequence ---------
 4990: #
 4991: #-------------------------------------------------------------------
 4992: 
 4993: #-------------------- Bubblesheet (Scantron) Grading -------------------
 4994: #
 4995: #------ start of section for handling grading by page/sequence ---------
 4996: 
 4997: =pod
 4998: 
 4999: =head1 Bubble sheet grading routines
 5000: 
 5001:   For this documentation:
 5002: 
 5003:    'scanline' refers to the full line of characters
 5004:    from the file that we are parsing that represents one entire sheet
 5005: 
 5006:    'bubble line' refers to the data
 5007:    representing the line of bubbles that are on the physical bubblesheet
 5008: 
 5009: 
 5010: The overall process is that a scanned in bubblesheet data is uploaded
 5011: into a course. When a user wants to grade, they select a
 5012: sequence/folder of resources, a file of bubblesheet info, and pick
 5013: one of the predefined configurations for what each scanline looks
 5014: like.
 5015: 
 5016: Next each scanline is checked for any errors of either 'missing
 5017: bubbles' (it's an error because it may have been mis-scanned
 5018: because too light bubbling), 'double bubble' (each bubble line should
 5019: have no more that one letter picked), invalid or duplicated CODE,
 5020: invalid student/employee ID
 5021: 
 5022: If the CODE option is used that determines the randomization of the
 5023: homework problems, either way the student/employee ID is looked up into a
 5024: username:domain.
 5025: 
 5026: During the validation phase the instructor can choose to skip scanlines. 
 5027: 
 5028: After the validation phase, there are now 3 bubblesheet files
 5029: 
 5030:   scantron_original_filename (unmodified original file)
 5031:   scantron_corrected_filename (file where the corrected information has replaced the original information)
 5032:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 5033: 
 5034: Also there is a separate hash nohist_scantrondata that contains extra
 5035: correction information that isn't representable in the bubblesheet
 5036: file (see &scantron_getfile() for more information)
 5037: 
 5038: After all scanlines are either valid, marked as valid or skipped, then
 5039: foreach line foreach problem in the picked sequence, an ssi request is
 5040: made that simulates a user submitting their selected letter(s) against
 5041: the homework problem.
 5042: 
 5043: =over 4
 5044: 
 5045: 
 5046: 
 5047: =item defaultFormData
 5048: 
 5049:   Returns html hidden inputs used to hold context/default values.
 5050: 
 5051:  Arguments:
 5052:   $symb - $symb of the current resource 
 5053: 
 5054: =cut
 5055: 
 5056: sub defaultFormData {
 5057:     my ($symb)=@_;
 5058:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 5059:      '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 5060:      '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 5061: }
 5062: 
 5063: 
 5064: =pod 
 5065: 
 5066: =item getSequenceDropDown
 5067: 
 5068:    Return html dropdown of possible sequences to grade
 5069:  
 5070:  Arguments:
 5071:    $symb - $symb of the current resource
 5072:    $map_error - ref to scalar which will container error if
 5073:                 $navmap object is unavailable in &getSymbMap().
 5074: 
 5075: =cut
 5076: 
 5077: sub getSequenceDropDown {
 5078:     my ($symb,$map_error)=@_;
 5079:     my $result='<select name="selectpage">'."\n";
 5080:     my ($titles,$symbx) = &getSymbMap($map_error);
 5081:     if (ref($map_error)) {
 5082:         return if ($$map_error);
 5083:     }
 5084:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
 5085:     my $ctr=0;
 5086:     foreach (@$titles) {
 5087: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 5088: 	$result.='<option value="'.$$symbx{$_}.'" '.
 5089: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 5090: 	    '>'.$showtitle.'</option>'."\n";
 5091: 	$ctr++;
 5092:     }
 5093:     $result.= '</select>';
 5094:     return $result;
 5095: }
 5096: 
 5097: my %bubble_lines_per_response;     # no. bubble lines for each response.
 5098:                                    # key is zero-based index - 0, 1, 2 ...
 5099: 
 5100: my %first_bubble_line;             # First bubble line no. for each bubble.
 5101: 
 5102: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
 5103:                                    # matchresponse or rankresponse, where 
 5104:                                    # an individual response can have multiple 
 5105:                                    # lines
 5106: 
 5107: my %responsetype_per_response;     # responsetype for each response
 5108: 
 5109: # Save and restore the bubble lines array to the form env.
 5110: 
 5111: 
 5112: sub save_bubble_lines {
 5113:     foreach my $line (keys(%bubble_lines_per_response)) {
 5114: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
 5115: 	$env{"form.scantron.first_bubble_line.$line"} =
 5116: 	    $first_bubble_line{$line};
 5117:         $env{"form.scantron.sub_bubblelines.$line"} = 
 5118:             $subdivided_bubble_lines{$line};
 5119:         $env{"form.scantron.responsetype.$line"} =
 5120:             $responsetype_per_response{$line};
 5121:     }
 5122: }
 5123: 
 5124: 
 5125: sub restore_bubble_lines {
 5126:     my $line = 0;
 5127:     %bubble_lines_per_response = ();
 5128:     while ($env{"form.scantron.bubblelines.$line"}) {
 5129: 	my $value = $env{"form.scantron.bubblelines.$line"};
 5130: 	$bubble_lines_per_response{$line} = $value;
 5131: 	$first_bubble_line{$line}  =
 5132: 	    $env{"form.scantron.first_bubble_line.$line"};
 5133:         $subdivided_bubble_lines{$line} =
 5134:             $env{"form.scantron.sub_bubblelines.$line"};
 5135:         $responsetype_per_response{$line} =
 5136:             $env{"form.scantron.responsetype.$line"};
 5137: 	$line++;
 5138:     }
 5139: }
 5140: 
 5141: #  Given the parsed scanline, get the response for 
 5142: #  'answer' number n:
 5143: 
 5144: sub get_response_bubbles {
 5145:     my ($parsed_line, $response)  = @_;
 5146: 
 5147:     my $bubble_line = $first_bubble_line{$response-1} +1;
 5148:     my $bubble_lines= $bubble_lines_per_response{$response-1};
 5149:     
 5150:     my $selected = "";
 5151: 
 5152:     for (my $bline = 0; $bline < $bubble_lines; $bline++) {
 5153: 	$selected .= $$parsed_line{"scantron.$bubble_line.answer"}.":";
 5154: 	$bubble_line++;
 5155:     }
 5156:     return $selected;
 5157: }
 5158: 
 5159: =pod 
 5160: 
 5161: =item scantron_filenames
 5162: 
 5163:    Returns a list of the scantron files in the current course 
 5164: 
 5165: =cut
 5166: 
 5167: sub scantron_filenames {
 5168:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 5169:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 5170:     my $getpropath = 1;
 5171:     my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
 5172:                                                         $cname,$getpropath);
 5173:     my @possiblenames;
 5174:     if (ref($dirlist) eq 'ARRAY') {
 5175:         foreach my $filename (sort(@{$dirlist})) {
 5176: 	    ($filename)=split(/&/,$filename);
 5177: 	    if ($filename!~/^scantron_orig_/) { next ; }
 5178: 	    $filename=~s/^scantron_orig_//;
 5179: 	    push(@possiblenames,$filename);
 5180:         }
 5181:     }
 5182:     return @possiblenames;
 5183: }
 5184: 
 5185: =pod 
 5186: 
 5187: =item scantron_uploads
 5188: 
 5189:    Returns  html drop-down list of scantron files in current course.
 5190: 
 5191:  Arguments:
 5192:    $file2grade - filename to set as selected in the dropdown
 5193: 
 5194: =cut
 5195: 
 5196: sub scantron_uploads {
 5197:     my ($file2grade) = @_;
 5198:     my $result=	'<select name="scantron_selectfile">';
 5199:     $result.="<option></option>";
 5200:     foreach my $filename (sort(&scantron_filenames())) {
 5201: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
 5202:     }
 5203:     $result.="</select>";
 5204:     return $result;
 5205: }
 5206: 
 5207: =pod 
 5208: 
 5209: =item scantron_scantab
 5210: 
 5211:   Returns html drop down of the scantron formats in the scantronformat.tab
 5212:   file.
 5213: 
 5214: =cut
 5215: 
 5216: sub scantron_scantab {
 5217:     my $result='<select name="scantron_format">'."\n";
 5218:     $result.='<option></option>'."\n";
 5219:     my @lines = &get_scantronformat_file();
 5220:     if (@lines > 0) {
 5221:         foreach my $line (@lines) {
 5222:             next if (($line =~ /^\#/) || ($line eq ''));
 5223: 	    my ($name,$descrip)=split(/:/,$line);
 5224: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
 5225:         }
 5226:     }
 5227:     $result.='</select>'."\n";
 5228:     return $result;
 5229: }
 5230: 
 5231: =pod
 5232: 
 5233: =item get_scantronformat_file
 5234: 
 5235:   Returns an array containing lines from the scantron format file for
 5236:   the domain of the course.
 5237: 
 5238:   If a url for a custom.tab file is listed in domain's configuration.db, 
 5239:   lines are from this file.
 5240: 
 5241:   Otherwise, if a default.tab has been published in RES space by the 
 5242:   domainconfig user, lines are from this file.
 5243: 
 5244:   Otherwise, fall back to getting lines from the legacy file on the
 5245:   local server:  /home/httpd/lonTabs/default_scantronformat.tab    
 5246: 
 5247: =cut
 5248: 
 5249: sub get_scantronformat_file {
 5250:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5251:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$cdom);
 5252:     my $gottab = 0;
 5253:     my @lines;
 5254:     if (ref($domconfig{'scantron'}) eq 'HASH') {
 5255:         if ($domconfig{'scantron'}{'scantronformat'} ne '') {
 5256:             my $formatfile = &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
 5257:             if ($formatfile ne '-1') {
 5258:                 @lines = split("\n",$formatfile,-1);
 5259:                 $gottab = 1;
 5260:             }
 5261:         }
 5262:     }
 5263:     if (!$gottab) {
 5264:         my $confname = $cdom.'-domainconfig';
 5265:         my $default = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
 5266:         my $formatfile =  &Apache::lonnet::getfile($default);
 5267:         if ($formatfile ne '-1') {
 5268:             @lines = split("\n",$formatfile,-1);
 5269:             $gottab = 1;
 5270:         }
 5271:     }
 5272:     if (!$gottab) {
 5273:         my @domains = &Apache::lonnet::current_machine_domains();
 5274:         if (grep(/^\Q$cdom\E$/,@domains)) {
 5275:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
 5276:             @lines = <$fh>;
 5277:             close($fh);
 5278:         } else {
 5279:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab');
 5280:             @lines = <$fh>;
 5281:             close($fh);
 5282:         }
 5283:     }
 5284:     return @lines;
 5285: }
 5286: 
 5287: =pod 
 5288: 
 5289: =item scantron_CODElist
 5290: 
 5291:   Returns html drop down of the saved CODE lists from current course,
 5292:   generated from earlier printings.
 5293: 
 5294: =cut
 5295: 
 5296: sub scantron_CODElist {
 5297:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 5298:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 5299:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 5300:     my $namechoice='<option></option>';
 5301:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 5302: 	if ($name =~ /^error: 2 /) { next; }
 5303: 	if ($name =~ /^type\0/) { next; }
 5304: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
 5305:     }
 5306:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
 5307:     return $namechoice;
 5308: }
 5309: 
 5310: =pod 
 5311: 
 5312: =item scantron_CODEunique
 5313: 
 5314:   Returns the html for "Each CODE to be used once" radio.
 5315: 
 5316: =cut
 5317: 
 5318: sub scantron_CODEunique {
 5319:     my $result='<span class="LC_nobreak">
 5320:                  <label><input type="radio" name="scantron_CODEunique"
 5321:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
 5322:                 </span>
 5323:                 <span class="LC_nobreak">
 5324:                  <label><input type="radio" name="scantron_CODEunique"
 5325:                         value="no" />'.&mt('No').' </label>
 5326:                 </span>';
 5327:     return $result;
 5328: }
 5329: 
 5330: =pod 
 5331: 
 5332: =item scantron_selectphase
 5333: 
 5334:   Generates the initial screen to start the bubblesheet process.
 5335:   Allows for - starting a grading run.
 5336:              - downloading existing scan data (original, corrected
 5337:                                                 or skipped info)
 5338: 
 5339:              - uploading new scan data
 5340: 
 5341:  Arguments:
 5342:   $r          - The Apache request object
 5343:   $file2grade - name of the file that contain the scanned data to score
 5344: 
 5345: =cut
 5346: 
 5347: sub scantron_selectphase {
 5348:     my ($r,$file2grade) = @_;
 5349:     my ($symb)=&get_symb($r);
 5350:     if (!$symb) {return '';}
 5351:     my $map_error;
 5352:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
 5353:     if ($map_error) {
 5354:         $r->print('<br />'.&navmap_errormsg().'<br />');
 5355:         return;
 5356:     }
 5357:     my $default_form_data=&defaultFormData($symb);
 5358:     my $grading_menu_button=&show_grading_menu_form($symb);
 5359:     my $file_selector=&scantron_uploads($file2grade);
 5360:     my $format_selector=&scantron_scantab();
 5361:     my $CODE_selector=&scantron_CODElist();
 5362:     my $CODE_unique=&scantron_CODEunique();
 5363:     my $result;
 5364: 
 5365:     $ssi_error = 0;
 5366: 
 5367:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
 5368:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 5369: 
 5370:         # Chunk of form to prompt for a scantron file upload.
 5371: 
 5372:         $r->print('
 5373:     <br />
 5374:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5375:        '.&Apache::loncommon::start_data_table_header_row().'
 5376:             <th>
 5377:               &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
 5378:             </th>
 5379:        '.&Apache::loncommon::end_data_table_header_row().'
 5380:        '.&Apache::loncommon::start_data_table_row().'
 5381:             <td>
 5382: ');
 5383:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 5384:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5385:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
 5386:     $r->print('
 5387:               <script type="text/javascript" language="javascript">
 5388:     function checkUpload(formname) {
 5389:         if (formname.upfile.value == "") {
 5390:             alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
 5391:             return false;
 5392:         }
 5393:         formname.submit();
 5394:     }
 5395:               </script>
 5396: 
 5397:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 5398:                 '.$default_form_data.'
 5399:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
 5400:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
 5401:                 <input name="command" value="scantronupload_save" type="hidden" />
 5402:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'
 5403:                 <br />
 5404:                 <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 5405:               </form>
 5406: ');
 5407: 
 5408:         $r->print('
 5409:             </td>
 5410:        '.&Apache::loncommon::end_data_table_row().'
 5411:        '.&Apache::loncommon::end_data_table().'
 5412: ');
 5413:     }
 5414: 
 5415:     # Chunk of form to prompt for a file to grade and how:
 5416: 
 5417:     $result.= '
 5418:     <br />
 5419:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
 5420:     <input type="hidden" name="command" value="scantron_warning" />
 5421:     '.$default_form_data.'
 5422:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5423:        '.&Apache::loncommon::start_data_table_header_row().'
 5424:             <th colspan="2">
 5425:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
 5426:             </th>
 5427:        '.&Apache::loncommon::end_data_table_header_row().'
 5428:        '.&Apache::loncommon::start_data_table_row().'
 5429:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
 5430:        '.&Apache::loncommon::end_data_table_row().'
 5431:        '.&Apache::loncommon::start_data_table_row().'
 5432:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
 5433:        '.&Apache::loncommon::end_data_table_row().'
 5434:        '.&Apache::loncommon::start_data_table_row().'
 5435:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
 5436:        '.&Apache::loncommon::end_data_table_row().'
 5437:        '.&Apache::loncommon::start_data_table_row().'
 5438:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
 5439:        '.&Apache::loncommon::end_data_table_row().'
 5440:        '.&Apache::loncommon::start_data_table_row().'
 5441:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
 5442:        '.&Apache::loncommon::end_data_table_row().'
 5443:        '.&Apache::loncommon::start_data_table_row().'
 5444: 	    <td> '.&mt('Options:').' </td>
 5445:             <td>
 5446: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
 5447:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
 5448:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
 5449: 	    </td>
 5450:        '.&Apache::loncommon::end_data_table_row().'
 5451:        '.&Apache::loncommon::start_data_table_row().'
 5452:             <td colspan="2">
 5453:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
 5454:             </td>
 5455:        '.&Apache::loncommon::end_data_table_row().'
 5456:     '.&Apache::loncommon::end_data_table().'
 5457:     </form>
 5458: ';
 5459:    
 5460:     $r->print($result);
 5461: 
 5462:     # Chunk of the form that prompts to view a scoring office file,
 5463:     # corrected file, skipped records in a file.
 5464: 
 5465:     $r->print('
 5466:    <br />
 5467:    <form action="/adm/grades" name="scantron_download">
 5468:      '.$default_form_data.'
 5469:      <input type="hidden" name="command" value="scantron_download" />
 5470:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5471:        '.&Apache::loncommon::start_data_table_header_row().'
 5472:               <th>
 5473:                 &nbsp;'.&mt('Download a scoring office file').'
 5474:               </th>
 5475:        '.&Apache::loncommon::end_data_table_header_row().'
 5476:        '.&Apache::loncommon::start_data_table_row().'
 5477:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
 5478:                 <br />
 5479:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
 5480:        '.&Apache::loncommon::end_data_table_row().'
 5481:      '.&Apache::loncommon::end_data_table().'
 5482:    </form>
 5483:    <br />
 5484: ');
 5485: 
 5486:     &Apache::lonpickcode::code_list($r,2);
 5487: 
 5488:     $r->print('<br /><form method="post" name="checkscantron">'.
 5489:              $default_form_data."\n".
 5490:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
 5491:              &Apache::loncommon::start_data_table_header_row()."\n".
 5492:              '<th colspan="2">
 5493:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
 5494:              '</th>'."\n".
 5495:               &Apache::loncommon::end_data_table_header_row()."\n".
 5496:               &Apache::loncommon::start_data_table_row()."\n".
 5497:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
 5498:               '<td> '.$sequence_selector.' </td>'.
 5499:               &Apache::loncommon::end_data_table_row()."\n".
 5500:               &Apache::loncommon::start_data_table_row()."\n".
 5501:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
 5502:               '<td> '.$file_selector.' </td>'."\n".
 5503:               &Apache::loncommon::end_data_table_row()."\n".
 5504:               &Apache::loncommon::start_data_table_row()."\n".
 5505:               '<td> '.&mt('Format of data file:').' </td>'."\n".
 5506:               '<td> '.$format_selector.' </td>'."\n".
 5507:               &Apache::loncommon::end_data_table_row()."\n".
 5508:               &Apache::loncommon::start_data_table_row()."\n".
 5509:               '<td> '.&mt('Options').' </td>'."\n".
 5510:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
 5511:               &Apache::loncommon::end_data_table_row()."\n".
 5512:               &Apache::loncommon::start_data_table_row()."\n".
 5513:               '<td colspan="2">'."\n".
 5514:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
 5515:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
 5516:               '</td>'."\n".
 5517:               &Apache::loncommon::end_data_table_row()."\n".
 5518:               &Apache::loncommon::end_data_table()."\n".
 5519:               '</form><br />');
 5520:     $r->print($grading_menu_button);
 5521:     return;
 5522: }
 5523: 
 5524: =pod
 5525: 
 5526: =item get_scantron_config
 5527: 
 5528:    Parse and return the scantron configuration line selected as a
 5529:    hash of configuration file fields.
 5530: 
 5531:  Arguments:
 5532:     which - the name of the configuration to parse from the file.
 5533: 
 5534: 
 5535:  Returns:
 5536:             If the named configuration is not in the file, an empty
 5537:             hash is returned.
 5538:     a hash with the fields
 5539:       name         - internal name for the this configuration setup
 5540:       description  - text to display to operator that describes this config
 5541:       CODElocation - if 0 or the string 'none'
 5542:                           - no CODE exists for this config
 5543:                      if -1 || the string 'letter'
 5544:                           - a CODE exists for this config and is
 5545:                             a string of letters
 5546:                      Unsupported value (but planned for future support)
 5547:                           if a positive integer
 5548:                                - The CODE exists as the first n items from
 5549:                                  the question section of the form
 5550:                           if the string 'number'
 5551:                                - The CODE exists for this config and is
 5552:                                  a string of numbers
 5553:       CODEstart   - (only matter if a CODE exists) column in the line where
 5554:                      the CODE starts
 5555:       CODElength  - length of the CODE
 5556:       IDstart     - column where the student/employee ID starts
 5557:       IDlength    - length of the student/employee ID info
 5558:       Qstart      - column where the information from the bubbled
 5559:                     'questions' start
 5560:       Qlength     - number of columns comprising a single bubble line from
 5561:                     the sheet. (usually either 1 or 10)
 5562:       Qon         - either a single character representing the character used
 5563:                     to signal a bubble was chosen in the positional setup, or
 5564:                     the string 'letter' if the letter of the chosen bubble is
 5565:                     in the final, or 'number' if a number representing the
 5566:                     chosen bubble is in the file (1->A 0->J)
 5567:       Qoff        - the character used to represent that a bubble was
 5568:                     left blank
 5569:       PaperID     - if the scanning process generates a unique number for each
 5570:                     sheet scanned the column that this ID number starts in
 5571:       PaperIDlength - number of columns that comprise the unique ID number
 5572:                       for the sheet of paper
 5573:       FirstName   - column that the first name starts in
 5574:       FirstNameLength - number of columns that the first name spans
 5575:  
 5576:       LastName    - column that the last name starts in
 5577:       LastNameLength - number of columns that the last name spans
 5578:       BubblesPerRow - number of bubbles available in each row used to
 5579:                       bubble an answer. (If not specified, 10 assumed).
 5580: 
 5581: =cut
 5582: 
 5583: sub get_scantron_config {
 5584:     my ($which) = @_;
 5585:     my @lines = &get_scantronformat_file();
 5586:     my %config;
 5587:     #FIXME probably should move to XML it has already gotten a bit much now
 5588:     foreach my $line (@lines) {
 5589: 	my ($name,$descrip)=split(/:/,$line);
 5590: 	if ($name ne $which ) { next; }
 5591: 	chomp($line);
 5592: 	my @config=split(/:/,$line);
 5593: 	$config{'name'}=$config[0];
 5594: 	$config{'description'}=$config[1];
 5595: 	$config{'CODElocation'}=$config[2];
 5596: 	$config{'CODEstart'}=$config[3];
 5597: 	$config{'CODElength'}=$config[4];
 5598: 	$config{'IDstart'}=$config[5];
 5599: 	$config{'IDlength'}=$config[6];
 5600: 	$config{'Qstart'}=$config[7];
 5601:  	$config{'Qlength'}=$config[8];
 5602: 	$config{'Qoff'}=$config[9];
 5603: 	$config{'Qon'}=$config[10];
 5604: 	$config{'PaperID'}=$config[11];
 5605: 	$config{'PaperIDlength'}=$config[12];
 5606: 	$config{'FirstName'}=$config[13];
 5607: 	$config{'FirstNamelength'}=$config[14];
 5608: 	$config{'LastName'}=$config[15];
 5609: 	$config{'LastNamelength'}=$config[16];
 5610:         $config{'BubblesPerRow'}=$config[17];
 5611: 	last;
 5612:     }
 5613:     return %config;
 5614: }
 5615: 
 5616: =pod 
 5617: 
 5618: =item username_to_idmap
 5619: 
 5620:     creates a hash keyed by student/employee ID with values of the corresponding
 5621:     student username:domain.
 5622: 
 5623:   Arguments:
 5624: 
 5625:     $classlist - reference to the class list hash. This is a hash
 5626:                  keyed by student name:domain  whose elements are references
 5627:                  to arrays containing various chunks of information
 5628:                  about the student. (See loncoursedata for more info).
 5629: 
 5630:   Returns
 5631:     %idmap - the constructed hash
 5632: 
 5633: =cut
 5634: 
 5635: sub username_to_idmap {
 5636:     my ($classlist)= @_;
 5637:     my %idmap;
 5638:     foreach my $student (keys(%$classlist)) {
 5639: 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
 5640: 	    $student;
 5641:     }
 5642:     return %idmap;
 5643: }
 5644: 
 5645: =pod
 5646: 
 5647: =item scantron_fixup_scanline
 5648: 
 5649:    Process a requested correction to a scanline.
 5650: 
 5651:   Arguments:
 5652:     $scantron_config   - hash from &get_scantron_config()
 5653:     $scan_data         - hash of correction information 
 5654:                           (see &scantron_getfile())
 5655:     $line              - existing scanline
 5656:     $whichline         - line number of the passed in scanline
 5657:     $field             - type of change to process 
 5658:                          (either 
 5659:                           'ID'     -> correct the student/employee ID
 5660:                           'CODE'   -> correct the CODE
 5661:                           'answer' -> fixup the submitted answers)
 5662:     
 5663:    $args               - hash of additional info,
 5664:                           - 'ID' 
 5665:                                'newid' -> studentID to use in replacement
 5666:                                           of existing one
 5667:                           - 'CODE' 
 5668:                                'CODE_ignore_dup' - set to true if duplicates
 5669:                                                    should be ignored.
 5670: 	                       'CODE' - is new code or 'use_unfound'
 5671:                                         if the existing unfound code should
 5672:                                         be used as is
 5673:                           - 'answer'
 5674:                                'response' - new answer or 'none' if blank
 5675:                                'question' - the bubble line to change
 5676:                                'questionnum' - the question identifier,
 5677:                                                may include subquestion. 
 5678: 
 5679:   Returns:
 5680:     $line - the modified scanline
 5681: 
 5682:   Side effects: 
 5683:     $scan_data - may be updated
 5684: 
 5685: =cut
 5686: 
 5687: 
 5688: sub scantron_fixup_scanline {
 5689:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
 5690:     if ($field eq 'ID') {
 5691: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
 5692: 	    return ($line,1,'New value too large');
 5693: 	}
 5694: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
 5695: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
 5696: 				     $args->{'newid'});
 5697: 	}
 5698: 	substr($line,$$scantron_config{'IDstart'}-1,
 5699: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
 5700: 	if ($args->{'newid'}=~/^\s*$/) {
 5701: 	    &scan_data($scan_data,"$whichline.user",
 5702: 		       $args->{'username'}.':'.$args->{'domain'});
 5703: 	}
 5704:     } elsif ($field eq 'CODE') {
 5705: 	if ($args->{'CODE_ignore_dup'}) {
 5706: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
 5707: 	}
 5708: 	&scan_data($scan_data,"$whichline.useCODE",'1');
 5709: 	if ($args->{'CODE'} ne 'use_unfound') {
 5710: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
 5711: 		return ($line,1,'New CODE value too large');
 5712: 	    }
 5713: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
 5714: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
 5715: 	    }
 5716: 	    substr($line,$$scantron_config{'CODEstart'}-1,
 5717: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
 5718: 	}
 5719:     } elsif ($field eq 'answer') {
 5720: 	my $length=$scantron_config->{'Qlength'};
 5721: 	my $off=$scantron_config->{'Qoff'};
 5722: 	my $on=$scantron_config->{'Qon'};
 5723: 	my $answer=${off}x$length;
 5724: 	if ($args->{'response'} eq 'none') {
 5725: 	    &scan_data($scan_data,
 5726: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
 5727: 	} else {
 5728: 	    if ($on eq 'letter') {
 5729: 		my @alphabet=('A'..'Z');
 5730: 		$answer=$alphabet[$args->{'response'}];
 5731: 	    } elsif ($on eq 'number') {
 5732: 		$answer=$args->{'response'}+1;
 5733: 		if ($answer == 10) { $answer = '0'; }
 5734: 	    } else {
 5735: 		substr($answer,$args->{'response'},1)=$on;
 5736: 	    }
 5737: 	    &scan_data($scan_data,
 5738: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
 5739: 	}
 5740: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
 5741: 	substr($line,$where-1,$length)=$answer;
 5742:     }
 5743:     return $line;
 5744: }
 5745: 
 5746: =pod
 5747: 
 5748: =item scan_data
 5749: 
 5750:     Edit or look up  an item in the scan_data hash.
 5751: 
 5752:   Arguments:
 5753:     $scan_data  - The hash (see scantron_getfile)
 5754:     $key        - shorthand of the key to edit (actual key is
 5755:                   scantronfilename_key).
 5756:     $data        - New value of the hash entry.
 5757:     $delete      - If true, the entry is removed from the hash.
 5758: 
 5759:   Returns:
 5760:     The new value of the hash table field (undefined if deleted).
 5761: 
 5762: =cut
 5763: 
 5764: 
 5765: sub scan_data {
 5766:     my ($scan_data,$key,$value,$delete)=@_;
 5767:     my $filename=$env{'form.scantron_selectfile'};
 5768:     if (defined($value)) {
 5769: 	$scan_data->{$filename.'_'.$key} = $value;
 5770:     }
 5771:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
 5772:     return $scan_data->{$filename.'_'.$key};
 5773: }
 5774: 
 5775: # ----- These first few routines are general use routines.----
 5776: 
 5777: # Return the number of occurences of a pattern in a string.
 5778: 
 5779: sub occurence_count {
 5780:     my ($string, $pattern) = @_;
 5781: 
 5782:     my @matches = ($string =~ /$pattern/g);
 5783: 
 5784:     return scalar(@matches);
 5785: }
 5786: 
 5787: 
 5788: # Take a string known to have digits and convert all the
 5789: # digits into letters in the range J,A..I.
 5790: 
 5791: sub digits_to_letters {
 5792:     my ($input) = @_;
 5793: 
 5794:     my @alphabet = ('J', 'A'..'I');
 5795: 
 5796:     my @input    = split(//, $input);
 5797:     my $output ='';
 5798:     for (my $i = 0; $i < scalar(@input); $i++) {
 5799: 	if ($input[$i] =~ /\d/) {
 5800: 	    $output .= $alphabet[$input[$i]];
 5801: 	} else {
 5802: 	    $output .= $input[$i];
 5803: 	}
 5804:     }
 5805:     return $output;
 5806: }
 5807: 
 5808: =pod 
 5809: 
 5810: =item scantron_parse_scanline
 5811: 
 5812:   Decodes a scanline from the selected scantron file
 5813: 
 5814:  Arguments:
 5815:     line             - The text of the scantron file line to process
 5816:     whichline        - Line number
 5817:     scantron_config  - Hash describing the format of the scantron lines.
 5818:     scan_data        - Hash of extra information about the scanline
 5819:                        (see scantron_getfile for more information)
 5820:     just_header      - True if should not process question answers but only
 5821:                        the stuff to the left of the answers.
 5822:  Returns:
 5823:    Hash containing the result of parsing the scanline
 5824: 
 5825:    Keys are all proceeded by the string 'scantron.'
 5826: 
 5827:        CODE    - the CODE in use for this scanline
 5828:        useCODE - 1 if the CODE is invalid but it usage has been forced
 5829:                  by the operator
 5830:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
 5831:                             CODEs were selected, but the usage has been
 5832:                             forced by the operator
 5833:        ID  - student/employee ID
 5834:        PaperID - if used, the ID number printed on the sheet when the 
 5835:                  paper was scanned
 5836:        FirstName - first name from the sheet
 5837:        LastName  - last name from the sheet
 5838: 
 5839:      if just_header was not true these key may also exist
 5840: 
 5841:        missingerror - a list of bubble ranges that are considered to be answers
 5842:                       to a single question that don't have any bubbles filled in.
 5843:                       Of the form questionnumber:firstbubblenumber:count.
 5844:        doubleerror  - a list of bubble ranges that are considered to be answers
 5845:                       to a single question that have more than one bubble filled in.
 5846:                       Of the form questionnumber::firstbubblenumber:count
 5847:    
 5848:                 In the above, count is the number of bubble responses in the
 5849:                 input line needed to represent the possible answers to the question.
 5850:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
 5851:                 per line would have count = 2.
 5852: 
 5853:        maxquest     - the number of the last bubble line that was parsed
 5854: 
 5855:        (<number> starts at 1)
 5856:        <number>.answer - zero or more letters representing the selected
 5857:                          letters from the scanline for the bubble line 
 5858:                          <number>.
 5859:                          if blank there was either no bubble or there where
 5860:                          multiple bubbles, (consult the keys missingerror and
 5861:                          doubleerror if this is an error condition)
 5862: 
 5863: =cut
 5864: 
 5865: sub scantron_parse_scanline {
 5866:     my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
 5867: 
 5868:     my %record;
 5869:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
 5870:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
 5871:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
 5872:     if (!($$scantron_config{'CODElocation'} eq 0 ||
 5873: 	  $$scantron_config{'CODElocation'} eq 'none')) {
 5874: 	if ($$scantron_config{'CODElocation'} < 0 ||
 5875: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
 5876: 	    $$scantron_config{'CODElocation'} eq 'number') {
 5877: 	    $record{'scantron.CODE'}=substr($data,
 5878: 					    $$scantron_config{'CODEstart'}-1,
 5879: 					    $$scantron_config{'CODElength'});
 5880: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
 5881: 		$record{'scantron.useCODE'}=1;
 5882: 	    }
 5883: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
 5884: 		$record{'scantron.CODE_ignore_dup'}=1;
 5885: 	    }
 5886: 	} else {
 5887: 	    #FIXME interpret first N questions
 5888: 	}
 5889:     }
 5890:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
 5891: 				  $$scantron_config{'IDlength'});
 5892:     $record{'scantron.PaperID'}=
 5893: 	substr($data,$$scantron_config{'PaperID'}-1,
 5894: 	       $$scantron_config{'PaperIDlength'});
 5895:     $record{'scantron.FirstName'}=
 5896: 	substr($data,$$scantron_config{'FirstName'}-1,
 5897: 	       $$scantron_config{'FirstNamelength'});
 5898:     $record{'scantron.LastName'}=
 5899: 	substr($data,$$scantron_config{'LastName'}-1,
 5900: 	       $$scantron_config{'LastNamelength'});
 5901:     if ($just_header) { return \%record; }
 5902: 
 5903:     my @alphabet=('A'..'Z');
 5904:     my $questnum=0;
 5905:     my $ansnum  =1;		# Multiple 'answer lines'/question.
 5906: 
 5907:     chomp($questions);		# Get rid of any trailing \n.
 5908:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
 5909:     while (length($questions)) {
 5910: 	my $answers_needed = $bubble_lines_per_response{$questnum};
 5911:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
 5912:                              || 1;
 5913:         $questnum++;
 5914:         my $quest_id = $questnum;
 5915:         my $currentquest = substr($questions,0,$answer_length);
 5916:         $questions       = substr($questions,$answer_length);
 5917:         if (length($currentquest) < $answer_length) { next; }
 5918: 
 5919:         if ($subdivided_bubble_lines{$questnum-1} =~ /,/) {
 5920:             my $subquestnum = 1;
 5921:             my $subquestions = $currentquest;
 5922:             my @subanswers_needed = 
 5923:                 split(/,/,$subdivided_bubble_lines{$questnum-1});  
 5924:             foreach my $subans (@subanswers_needed) {
 5925:                 my $subans_length =
 5926:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
 5927:                 my $currsubquest = substr($subquestions,0,$subans_length);
 5928:                 $subquestions   = substr($subquestions,$subans_length);
 5929:                 $quest_id = "$questnum.$subquestnum";
 5930:                 if (($$scantron_config{'Qon'} eq 'letter') ||
 5931:                     ($$scantron_config{'Qon'} eq 'number')) {
 5932:                     $ansnum = &scantron_validator_lettnum($ansnum, 
 5933:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 5934:                         \@alphabet,\%record,$scantron_config,$scan_data);
 5935:                 } else {
 5936:                     $ansnum = &scantron_validator_positional($ansnum,
 5937:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,                        \@alphabet,\%record,$scantron_config,$scan_data);
 5938:                 }
 5939:                 $subquestnum ++;
 5940:             }
 5941:         } else {
 5942:             if (($$scantron_config{'Qon'} eq 'letter') ||
 5943:                 ($$scantron_config{'Qon'} eq 'number')) {
 5944:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
 5945:                     $quest_id,$answers_needed,$currentquest,$whichline,
 5946:                     \@alphabet,\%record,$scantron_config,$scan_data);
 5947:             } else {
 5948:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
 5949:                     $quest_id,$answers_needed,$currentquest,$whichline,
 5950:                     \@alphabet,\%record,$scantron_config,$scan_data);
 5951:             }
 5952:         }
 5953:     }
 5954:     $record{'scantron.maxquest'}=$questnum;
 5955:     return \%record;
 5956: }
 5957: 
 5958: sub scantron_validator_lettnum {
 5959:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
 5960:         $alphabet,$record,$scantron_config,$scan_data) = @_;
 5961: 
 5962:     # Qon 'letter' implies for each slot in currquest we have:
 5963:     #    ? or * for doubles, a letter in A-Z for a bubble, and
 5964:     #    about anything else (esp. a value of Qoff) for missing
 5965:     #    bubbles.
 5966:     #
 5967:     # Qon 'number' implies each slot gives a digit that indexes the
 5968:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
 5969:     #    and * or ? for double bubbles on a single line.
 5970:     #
 5971: 
 5972:     my $matchon;
 5973:     if ($$scantron_config{'Qon'} eq 'letter') {
 5974:         $matchon = '[A-Z]';
 5975:     } elsif ($$scantron_config{'Qon'} eq 'number') {
 5976:         $matchon = '\d';
 5977:     }
 5978:     my $occurrences = 0;
 5979:     if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
 5980:         ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
 5981:         ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
 5982:         ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
 5983:         ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
 5984:         ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
 5985:         my @singlelines = split('',$currquest);
 5986:         foreach my $entry (@singlelines) {
 5987:             $occurrences = &occurence_count($entry,$matchon);
 5988:             if ($occurrences > 1) {
 5989:                 last;
 5990:             }
 5991:         } 
 5992:     } else {
 5993:         $occurrences = &occurence_count($currquest,$matchon); 
 5994:     }
 5995:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
 5996:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
 5997:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 5998:             my $bubble = substr($currquest,$ans,1);
 5999:             if ($bubble =~ /$matchon/ ) {
 6000:                 if ($$scantron_config{'Qon'} eq 'number') {
 6001:                     if ($bubble == 0) {
 6002:                         $bubble = 10; 
 6003:                     }
 6004:                     $record->{"scantron.$ansnum.answer"} = 
 6005:                         $alphabet->[$bubble-1];
 6006:                 } else {
 6007:                     $record->{"scantron.$ansnum.answer"} = $bubble;
 6008:                 }
 6009:             } else {
 6010:                 $record->{"scantron.$ansnum.answer"}='';
 6011:             }
 6012:             $ansnum++;
 6013:         }
 6014:     } elsif (!defined($currquest)
 6015:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
 6016:             || (&occurence_count($currquest,$matchon) == 0)) {
 6017:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6018:             $record->{"scantron.$ansnum.answer"}='';
 6019:             $ansnum++;
 6020:         }
 6021:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6022:             push(@{$record->{'scantron.missingerror'}},$quest_id);
 6023:         }
 6024:     } else {
 6025:         if ($$scantron_config{'Qon'} eq 'number') {
 6026:             $currquest = &digits_to_letters($currquest);            
 6027:         }
 6028:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6029:             my $bubble = substr($currquest,$ans,1);
 6030:             $record->{"scantron.$ansnum.answer"} = $bubble;
 6031:             $ansnum++;
 6032:         }
 6033:     }
 6034:     return $ansnum;
 6035: }
 6036: 
 6037: sub scantron_validator_positional {
 6038:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
 6039:         $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_;
 6040: 
 6041:     # Otherwise there's a positional notation;
 6042:     # each bubble line requires Qlength items, and there are filled in
 6043:     # bubbles for each case where there 'Qon' characters.
 6044:     #
 6045: 
 6046:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
 6047: 
 6048:     # If the split only gives us one element.. the full length of the
 6049:     # answer string, no bubbles are filled in:
 6050: 
 6051:     if ($answers_needed eq '') {
 6052:         return;
 6053:     }
 6054: 
 6055:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
 6056:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6057:             $record->{"scantron.$ansnum.answer"}='';
 6058:             $ansnum++;
 6059:         }
 6060:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6061:             push(@{$record->{"scantron.missingerror"}},$quest_id);
 6062:         }
 6063:     } elsif (scalar(@array) == 2) {
 6064:         my $location = length($array[0]);
 6065:         my $line_num = int($location / $$scantron_config{'Qlength'});
 6066:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
 6067:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6068:             if ($ans eq $line_num) {
 6069:                 $record->{"scantron.$ansnum.answer"} = $bubble;
 6070:             } else {
 6071:                 $record->{"scantron.$ansnum.answer"} = ' ';
 6072:             }
 6073:             $ansnum++;
 6074:          }
 6075:     } else {
 6076:         #  If there's more than one instance of a bubble character
 6077:         #  That's a double bubble; with positional notation we can
 6078:         #  record all the bubbles filled in as well as the
 6079:         #  fact this response consists of multiple bubbles.
 6080:         #
 6081:         if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
 6082:             ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
 6083:             ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
 6084:             ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
 6085:             ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
 6086:             ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
 6087:             my $doubleerror = 0;
 6088:             while (($currquest >= $$scantron_config{'Qlength'}) && 
 6089:                    (!$doubleerror)) {
 6090:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
 6091:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
 6092:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
 6093:                if (length(@currarray) > 2) {
 6094:                    $doubleerror = 1;
 6095:                } 
 6096:             }
 6097:             if ($doubleerror) {
 6098:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6099:             }
 6100:         } else {
 6101:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6102:         }
 6103:         my $item = $ansnum;
 6104:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6105:             $record->{"scantron.$item.answer"} = '';
 6106:             $item ++;
 6107:         }
 6108: 
 6109:         my @ans=@array;
 6110:         my $i=0;
 6111:         my $increment = 0;
 6112:         while ($#ans) {
 6113:             $i+=length($ans[0]) + $increment;
 6114:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
 6115:             my $bubble = $i%$$scantron_config{'Qlength'};
 6116:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
 6117:             shift(@ans);
 6118:             $increment = 1;
 6119:         }
 6120:         $ansnum += $answers_needed;
 6121:     }
 6122:     return $ansnum;
 6123: }
 6124: 
 6125: =pod
 6126: 
 6127: =item scantron_add_delay
 6128: 
 6129:    Adds an error message that occurred during the grading phase to a
 6130:    queue of messages to be shown after grading pass is complete
 6131: 
 6132:  Arguments:
 6133:    $delayqueue  - arrary ref of hash ref of error messages
 6134:    $scanline    - the scanline that caused the error
 6135:    $errormesage - the error message
 6136:    $errorcode   - a numeric code for the error
 6137: 
 6138:  Side Effects:
 6139:    updates the $delayqueue to have a new hash ref of the error
 6140: 
 6141: =cut
 6142: 
 6143: sub scantron_add_delay {
 6144:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
 6145:     push(@$delayqueue,
 6146: 	 {'line' => $scanline, 'emsg' => $errormessage,
 6147: 	  'ecode' => $errorcode }
 6148: 	 );
 6149: }
 6150: 
 6151: =pod
 6152: 
 6153: =item scantron_find_student
 6154: 
 6155:    Finds the username for the current scanline
 6156: 
 6157:   Arguments:
 6158:    $scantron_record - hash result from scantron_parse_scanline
 6159:    $scan_data       - hash of correction information 
 6160:                       (see &scantron_getfile() form more information)
 6161:    $idmap           - hash from &username_to_idmap()
 6162:    $line            - number of current scanline
 6163:  
 6164:   Returns:
 6165:    Either 'username:domain' or undef if unknown
 6166: 
 6167: =cut
 6168: 
 6169: sub scantron_find_student {
 6170:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
 6171:     my $scanID=$$scantron_record{'scantron.ID'};
 6172:     if ($scanID =~ /^\s*$/) {
 6173:  	return &scan_data($scan_data,"$line.user");
 6174:     }
 6175:     foreach my $id (keys(%$idmap)) {
 6176:  	if (lc($id) eq lc($scanID)) {
 6177:  	    return $$idmap{$id};
 6178:  	}
 6179:     }
 6180:     return undef;
 6181: }
 6182: 
 6183: =pod
 6184: 
 6185: =item scantron_filter
 6186: 
 6187:    Filter sub for lonnavmaps, filters out hidden resources if ignore
 6188:    hidden resources was selected
 6189: 
 6190: =cut
 6191: 
 6192: sub scantron_filter {
 6193:     my ($curres)=@_;
 6194: 
 6195:     if (ref($curres) && $curres->is_problem()) {
 6196: 	# if the user has asked to not have either hidden
 6197: 	# or 'randomout' controlled resources to be graded
 6198: 	# don't include them
 6199: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6200: 	    && $curres->randomout) {
 6201: 	    return 0;
 6202: 	}
 6203: 	return 1;
 6204:     }
 6205:     return 0;
 6206: }
 6207: 
 6208: =pod
 6209: 
 6210: =item scantron_process_corrections
 6211: 
 6212:    Gets correction information out of submitted form data and corrects
 6213:    the scanline
 6214: 
 6215: =cut
 6216: 
 6217: sub scantron_process_corrections {
 6218:     my ($r) = @_;
 6219:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6220:     my ($scanlines,$scan_data)=&scantron_getfile();
 6221:     my $classlist=&Apache::loncoursedata::get_classlist();
 6222:     my $which=$env{'form.scantron_line'};
 6223:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
 6224:     my ($skip,$err,$errmsg);
 6225:     if ($env{'form.scantron_skip_record'}) {
 6226: 	$skip=1;
 6227:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
 6228: 	my $newstudent=$env{'form.scantron_username'}.':'.
 6229: 	    $env{'form.scantron_domain'};
 6230: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
 6231: 	($line,$err,$errmsg)=
 6232: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6233: 				     'ID',{'newid'=>$newid,
 6234: 				    'username'=>$env{'form.scantron_username'},
 6235: 				    'domain'=>$env{'form.scantron_domain'}});
 6236:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
 6237: 	my $resolution=$env{'form.scantron_CODE_resolution'};
 6238: 	my $newCODE;
 6239: 	my %args;
 6240: 	if      ($resolution eq 'use_unfound') {
 6241: 	    $newCODE='use_unfound';
 6242: 	} elsif ($resolution eq 'use_found') {
 6243: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
 6244: 	} elsif ($resolution eq 'use_typed') {
 6245: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
 6246: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
 6247: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
 6248: 	}
 6249: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
 6250: 	    $args{'CODE_ignore_dup'}=1;
 6251: 	}
 6252: 	$args{'CODE'}=$newCODE;
 6253: 	($line,$err,$errmsg)=
 6254: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6255: 				     'CODE',\%args);
 6256:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
 6257: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
 6258: 	    ($line,$err,$errmsg)=
 6259: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
 6260: 					 $which,'answer',
 6261: 					 { 'question'=>$question,
 6262: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
 6263:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
 6264: 	    if ($err) { last; }
 6265: 	}
 6266:     }
 6267:     if ($err) {
 6268: 	$r->print("<span class=\"LC_warning\">Unable to accept last correction, an error occurred :$errmsg:</span>");
 6269:     } else {
 6270: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 6271: 	&scantron_putfile($scanlines,$scan_data);
 6272:     }
 6273: }
 6274: 
 6275: =pod
 6276: 
 6277: =item reset_skipping_status
 6278: 
 6279:    Forgets the current set of remember skipped scanlines (and thus
 6280:    reverts back to considering all lines in the
 6281:    scantron_skipped_<filename> file)
 6282: 
 6283: =cut
 6284: 
 6285: sub reset_skipping_status {
 6286:     my ($scanlines,$scan_data)=&scantron_getfile();
 6287:     &scan_data($scan_data,'remember_skipping',undef,1);
 6288:     &scantron_putfile(undef,$scan_data);
 6289: }
 6290: 
 6291: =pod
 6292: 
 6293: =item start_skipping
 6294: 
 6295:    Marks a scanline to be skipped. 
 6296: 
 6297: =cut
 6298: 
 6299: sub start_skipping {
 6300:     my ($scan_data,$i)=@_;
 6301:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6302:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
 6303: 	$remembered{$i}=2;
 6304:     } else {
 6305: 	$remembered{$i}=1;
 6306:     }
 6307:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
 6308: }
 6309: 
 6310: =pod
 6311: 
 6312: =item should_be_skipped
 6313: 
 6314:    Checks whether a scanline should be skipped.
 6315: 
 6316: =cut
 6317: 
 6318: sub should_be_skipped {
 6319:     my ($scanlines,$scan_data,$i)=@_;
 6320:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
 6321: 	# not redoing old skips
 6322: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
 6323: 	return 0;
 6324:     }
 6325:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6326: 
 6327:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
 6328: 	return 0;
 6329:     }
 6330:     return 1;
 6331: }
 6332: 
 6333: =pod
 6334: 
 6335: =item remember_current_skipped
 6336: 
 6337:    Discovers what scanlines are in the scantron_skipped_<filename>
 6338:    file and remembers them into scan_data for later use.
 6339: 
 6340: =cut
 6341: 
 6342: sub remember_current_skipped {
 6343:     my ($scanlines,$scan_data)=&scantron_getfile();
 6344:     my %to_remember;
 6345:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6346: 	if ($scanlines->{'skipped'}[$i]) {
 6347: 	    $to_remember{$i}=1;
 6348: 	}
 6349:     }
 6350: 
 6351:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
 6352:     &scantron_putfile(undef,$scan_data);
 6353: }
 6354: 
 6355: =pod
 6356: 
 6357: =item check_for_error
 6358: 
 6359:     Checks if there was an error when attempting to remove a specific
 6360:     scantron_.. bubblesheet data file. Prints out an error if
 6361:     something went wrong.
 6362: 
 6363: =cut
 6364: 
 6365: sub check_for_error {
 6366:     my ($r,$result)=@_;
 6367:     if ($result ne 'ok' && $result ne 'not_found' ) {
 6368: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
 6369:     }
 6370: }
 6371: 
 6372: =pod
 6373: 
 6374: =item scantron_warning_screen
 6375: 
 6376:    Interstitial screen to make sure the operator has selected the
 6377:    correct options before we start the validation phase.
 6378: 
 6379: =cut
 6380: 
 6381: sub scantron_warning_screen {
 6382:     my ($button_text)=@_;
 6383:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
 6384:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6385:     my $CODElist;
 6386:     if ($scantron_config{'CODElocation'} &&
 6387: 	$scantron_config{'CODEstart'} &&
 6388: 	$scantron_config{'CODElength'}) {
 6389: 	$CODElist=$env{'form.scantron_CODElist'};
 6390: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">None</span>'; }
 6391: 	$CODElist=
 6392: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 6393: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
 6394:     }
 6395:     return ('
 6396: <p>
 6397: <span class="LC_warning">
 6398: '.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
 6399: </p>
 6400: <table>
 6401: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 6402: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
 6403: '.$CODElist.'
 6404: </table>
 6405: <br />
 6406: <p> '.&mt('If this information is correct, please click on \'[_1]\'.',&mt($button_text)).'</p>
 6407: <p> '.&mt('If something is incorrect, please click the \'Grading Menu\' button to start over.').'</p>
 6408: 
 6409: <br />
 6410: ');
 6411: }
 6412: 
 6413: =pod
 6414: 
 6415: =item scantron_do_warning
 6416: 
 6417:    Check if the operator has picked something for all required
 6418:    fields. Error out if something is missing.
 6419: 
 6420: =cut
 6421: 
 6422: sub scantron_do_warning {
 6423:     my ($r)=@_;
 6424:     my ($symb)=&get_symb($r);
 6425:     if (!$symb) {return '';}
 6426:     my $default_form_data=&defaultFormData($symb);
 6427:     $r->print(&scantron_form_start().$default_form_data);
 6428:     if ( $env{'form.selectpage'} eq '' ||
 6429: 	 $env{'form.scantron_selectfile'} eq '' ||
 6430: 	 $env{'form.scantron_format'} eq '' ) {
 6431: 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
 6432: 	if ( $env{'form.selectpage'} eq '') {
 6433: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 6434: 	} 
 6435: 	if ( $env{'form.scantron_selectfile'} eq '') {
 6436: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
 6437: 	} 
 6438: 	if ( $env{'form.scantron_format'} eq '') {
 6439: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
 6440: 	} 
 6441:     } else {
 6442: 	my $warning=&scantron_warning_screen('Grading: Validate Records');
 6443: 	$r->print('
 6444: '.$warning.'
 6445: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 6446: <input type="hidden" name="command" value="scantron_validate" />
 6447: ');
 6448:     }
 6449:     $r->print("</form><br />".&show_grading_menu_form($symb));
 6450:     return '';
 6451: }
 6452: 
 6453: =pod
 6454: 
 6455: =item scantron_form_start
 6456: 
 6457:     html hidden input for remembering all selected grading options
 6458: 
 6459: =cut
 6460: 
 6461: sub scantron_form_start {
 6462:     my ($max_bubble)=@_;
 6463:     my $result= <<SCANTRONFORM;
 6464: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 6465:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
 6466:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
 6467:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
 6468:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
 6469:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
 6470:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
 6471:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
 6472:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
 6473:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
 6474: SCANTRONFORM
 6475: 
 6476:   my $line = 0;
 6477:     while (defined($env{"form.scantron.bubblelines.$line"})) {
 6478:        my $chunk =
 6479: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
 6480:        $chunk .=
 6481: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
 6482:        $chunk .= 
 6483:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
 6484:        $chunk .=
 6485:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
 6486:        $result .= $chunk;
 6487:        $line++;
 6488:    }
 6489:     return $result;
 6490: }
 6491: 
 6492: =pod
 6493: 
 6494: =item scantron_validate_file
 6495: 
 6496:     Dispatch routine for doing validation of a bubblesheet data file.
 6497: 
 6498:     Also processes any necessary information resets that need to
 6499:     occur before validation begins (ignore previous corrections,
 6500:     restarting the skipped records processing)
 6501: 
 6502: =cut
 6503: 
 6504: sub scantron_validate_file {
 6505:     my ($r) = @_;
 6506:     my ($symb)=&get_symb($r);
 6507:     if (!$symb) {return '';}
 6508:     my $default_form_data=&defaultFormData($symb);
 6509:     
 6510:     # do the detection of only doing skipped records first befroe we delete
 6511:     # them when doing the corrections reset
 6512:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 6513: 	&reset_skipping_status();
 6514:     }
 6515:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
 6516: 	&remember_current_skipped();
 6517: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
 6518:     }
 6519: 
 6520:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
 6521: 	&check_for_error($r,&scantron_remove_file('corrected'));
 6522: 	&check_for_error($r,&scantron_remove_file('skipped'));
 6523: 	&check_for_error($r,&scantron_remove_scan_data());
 6524: 	$env{'form.scantron_options_ignore'}='done';
 6525:     }
 6526: 
 6527:     if ($env{'form.scantron_corrections'}) {
 6528: 	&scantron_process_corrections($r);
 6529:     }
 6530:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
 6531:     #get the student pick code ready
 6532:     $r->print(&Apache::loncommon::studentbrowser_javascript());
 6533:     my $nav_error;
 6534:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6535:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 6536:     if ($nav_error) {
 6537:         $r->print(&navmap_errormsg());
 6538:         return '';
 6539:     }
 6540:     my $result=&scantron_form_start($max_bubble).$default_form_data;
 6541:     $r->print($result);
 6542:     
 6543:     my @validate_phases=( 'sequence',
 6544: 			  'ID',
 6545: 			  'CODE',
 6546: 			  'doublebubble',
 6547: 			  'missingbubbles');
 6548:     if (!$env{'form.validatepass'}) {
 6549: 	$env{'form.validatepass'} = 0;
 6550:     }
 6551:     my $currentphase=$env{'form.validatepass'};
 6552: 
 6553: 
 6554:     my $stop=0;
 6555:     while (!$stop && $currentphase < scalar(@validate_phases)) {
 6556: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 6557: 	$r->rflush();
 6558: 	my $which="scantron_validate_".$validate_phases[$currentphase];
 6559: 	{
 6560: 	    no strict 'refs';
 6561: 	    ($stop,$currentphase)=&$which($r,$currentphase);
 6562: 	}
 6563:     }
 6564:     if (!$stop) {
 6565: 	my $warning=&scantron_warning_screen('Start Grading');
 6566: 	$r->print(&mt('Validation process complete.').'<br />'.
 6567:                   $warning.
 6568:                   &mt('Perform verification for each student after storage of submissions?').
 6569:                   '&nbsp;<span class="LC_nobreak"><label>'.
 6570:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
 6571:                   ('&nbsp;'x3).'<label>'.
 6572:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
 6573:                   '</label></span><br />'.
 6574:                   &mt('Grading will take longer if you use verification.').'<br />'.
 6575:                   &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'<br /><br />'.
 6576:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
 6577:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
 6578:     } else {
 6579: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
 6580: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
 6581:     }
 6582:     if ($stop) {
 6583: 	if ($validate_phases[$currentphase] eq 'sequence') {
 6584: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 6585: 	    $r->print(' '.&mt('this error').' <br />');
 6586: 
 6587: 	    $r->print(" <p>".&mt("Or click the 'Grading Menu' button to start over.")."</p>");
 6588: 	} else {
 6589:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 6590: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
 6591:             } else {
 6592:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
 6593:             }
 6594: 	    $r->print(' '.&mt('using corrected info').' <br />');
 6595: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
 6596: 	    $r->print(" ".&mt("this scanline saving it for later."));
 6597: 	}
 6598:     }
 6599:     $r->print(" </form><br />".&show_grading_menu_form($symb));
 6600:     return '';
 6601: }
 6602: 
 6603: 
 6604: =pod
 6605: 
 6606: =item scantron_remove_file
 6607: 
 6608:    Removes the requested bubblesheet data file, makes sure that
 6609:    scantron_original_<filename> is never removed
 6610: 
 6611: 
 6612: =cut
 6613: 
 6614: sub scantron_remove_file {
 6615:     my ($which)=@_;
 6616:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6617:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6618:     my $file='scantron_';
 6619:     if ($which eq 'corrected' || $which eq 'skipped') {
 6620: 	$file.=$which.'_';
 6621:     } else {
 6622: 	return 'refused';
 6623:     }
 6624:     $file.=$env{'form.scantron_selectfile'};
 6625:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
 6626: }
 6627: 
 6628: 
 6629: =pod
 6630: 
 6631: =item scantron_remove_scan_data
 6632: 
 6633:    Removes all scan_data correction for the requested bubblesheet
 6634:    data file.  (In the case that both the are doing skipped records we need
 6635:    to remember the old skipped lines for the time being so that element
 6636:    persists for a while.)
 6637: 
 6638: =cut
 6639: 
 6640: sub scantron_remove_scan_data {
 6641:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6642:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6643:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
 6644:     my @todelete;
 6645:     my $filename=$env{'form.scantron_selectfile'};
 6646:     foreach my $key (@keys) {
 6647: 	if ($key=~/^\Q$filename\E_/) {
 6648: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
 6649: 		$key=~/remember_skipping/) {
 6650: 		next;
 6651: 	    }
 6652: 	    push(@todelete,$key);
 6653: 	}
 6654:     }
 6655:     my $result;
 6656:     if (@todelete) {
 6657: 	$result = &Apache::lonnet::del('nohist_scantrondata',
 6658: 				       \@todelete,$cdom,$cname);
 6659:     } else {
 6660: 	$result = 'ok';
 6661:     }
 6662:     return $result;
 6663: }
 6664: 
 6665: 
 6666: =pod
 6667: 
 6668: =item scantron_getfile
 6669: 
 6670:     Fetches the requested bubblesheet data file (all 3 versions), and
 6671:     the scan_data hash
 6672:   
 6673:   Arguments:
 6674:     None
 6675: 
 6676:   Returns:
 6677:     2 hash references
 6678: 
 6679:      - first one has 
 6680:          orig      -
 6681:          corrected -
 6682:          skipped   -  each of which points to an array ref of the specified
 6683:                       file broken up into individual lines
 6684:          count     - number of scanlines
 6685:  
 6686:      - second is the scan_data hash possible keys are
 6687:        ($number refers to scanline numbered $number and thus the key affects
 6688:         only that scanline
 6689:         $bubline refers to the specific bubble line element and the aspects
 6690:         refers to that specific bubble line element)
 6691: 
 6692:        $number.user - username:domain to use
 6693:        $number.CODE_ignore_dup 
 6694:                     - ignore the duplicate CODE error 
 6695:        $number.useCODE
 6696:                     - use the CODE in the scanline as is
 6697:        $number.no_bubble.$bubline
 6698:                     - it is valid that there is no bubbled in bubble
 6699:                       at $number $bubline
 6700:        remember_skipping
 6701:                     - a frozen hash containing keys of $number and values
 6702:                       of either 
 6703:                         1 - we are on a 'do skipped records pass' and plan
 6704:                             on processing this line
 6705:                         2 - we are on a 'do skipped records pass' and this
 6706:                             scanline has been marked to skip yet again
 6707: 
 6708: =cut
 6709: 
 6710: sub scantron_getfile {
 6711:     #FIXME really would prefer a scantron directory
 6712:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6713:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6714:     my $lines;
 6715:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6716: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
 6717:     my %scanlines;
 6718:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
 6719:     my $temp=$scanlines{'orig'};
 6720:     $scanlines{'count'}=$#$temp;
 6721: 
 6722:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6723: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
 6724:     if ($lines eq '-1') {
 6725: 	$scanlines{'corrected'}=[];
 6726:     } else {
 6727: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
 6728:     }
 6729:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6730: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
 6731:     if ($lines eq '-1') {
 6732: 	$scanlines{'skipped'}=[];
 6733:     } else {
 6734: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
 6735:     }
 6736:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
 6737:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
 6738:     my %scan_data = @tmp;
 6739:     return (\%scanlines,\%scan_data);
 6740: }
 6741: 
 6742: =pod
 6743: 
 6744: =item lonnet_putfile
 6745: 
 6746:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
 6747: 
 6748:  Arguments:
 6749:    $contents - data to store
 6750:    $filename - filename to store $contents into
 6751: 
 6752:  Returns:
 6753:    result value from &Apache::lonnet::finishuserfileupload
 6754: 
 6755: =cut
 6756: 
 6757: sub lonnet_putfile {
 6758:     my ($contents,$filename)=@_;
 6759:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6760:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6761:     $env{'form.sillywaytopassafilearound'}=$contents;
 6762:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
 6763: 
 6764: }
 6765: 
 6766: =pod
 6767: 
 6768: =item scantron_putfile
 6769: 
 6770:     Stores the current version of the bubblesheet data files, and the
 6771:     scan_data hash. (Does not modify the original version only the
 6772:     corrected and skipped versions.
 6773: 
 6774:  Arguments:
 6775:     $scanlines - hash ref that looks like the first return value from
 6776:                  &scantron_getfile()
 6777:     $scan_data - hash ref that looks like the second return value from
 6778:                  &scantron_getfile()
 6779: 
 6780: =cut
 6781: 
 6782: sub scantron_putfile {
 6783:     my ($scanlines,$scan_data) = @_;
 6784:     #FIXME really would prefer a scantron directory
 6785:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6786:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6787:     if ($scanlines) {
 6788: 	my $prefix='scantron_';
 6789: # no need to update orig, shouldn't change
 6790: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
 6791: #		    $env{'form.scantron_selectfile'});
 6792: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
 6793: 			$prefix.'corrected_'.
 6794: 			$env{'form.scantron_selectfile'});
 6795: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
 6796: 			$prefix.'skipped_'.
 6797: 			$env{'form.scantron_selectfile'});
 6798:     }
 6799:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
 6800: }
 6801: 
 6802: =pod
 6803: 
 6804: =item scantron_get_line
 6805: 
 6806:    Returns the correct version of the scanline
 6807: 
 6808:  Arguments:
 6809:     $scanlines - hash ref that looks like the first return value from
 6810:                  &scantron_getfile()
 6811:     $scan_data - hash ref that looks like the second return value from
 6812:                  &scantron_getfile()
 6813:     $i         - number of the requested line (starts at 0)
 6814: 
 6815:  Returns:
 6816:    A scanline, (either the original or the corrected one if it
 6817:    exists), or undef if the requested scanline should be
 6818:    skipped. (Either because it's an skipped scanline, or it's an
 6819:    unskipped scanline and we are not doing a 'do skipped scanlines'
 6820:    pass.
 6821: 
 6822: =cut
 6823: 
 6824: sub scantron_get_line {
 6825:     my ($scanlines,$scan_data,$i)=@_;
 6826:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
 6827:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
 6828:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
 6829:     return $scanlines->{'orig'}[$i]; 
 6830: }
 6831: 
 6832: =pod
 6833: 
 6834: =item scantron_todo_count
 6835: 
 6836:     Counts the number of scanlines that need processing.
 6837: 
 6838:  Arguments:
 6839:     $scanlines - hash ref that looks like the first return value from
 6840:                  &scantron_getfile()
 6841:     $scan_data - hash ref that looks like the second return value from
 6842:                  &scantron_getfile()
 6843: 
 6844:  Returns:
 6845:     $count - number of scanlines to process
 6846: 
 6847: =cut
 6848: 
 6849: sub get_todo_count {
 6850:     my ($scanlines,$scan_data)=@_;
 6851:     my $count=0;
 6852:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6853: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 6854: 	if ($line=~/^[\s\cz]*$/) { next; }
 6855: 	$count++;
 6856:     }
 6857:     return $count;
 6858: }
 6859: 
 6860: =pod
 6861: 
 6862: =item scantron_put_line
 6863: 
 6864:     Updates the 'corrected' or 'skipped' versions of the bubblesheet
 6865:     data file.
 6866: 
 6867:  Arguments:
 6868:     $scanlines - hash ref that looks like the first return value from
 6869:                  &scantron_getfile()
 6870:     $scan_data - hash ref that looks like the second return value from
 6871:                  &scantron_getfile()
 6872:     $i         - line number to update
 6873:     $newline   - contents of the updated scanline
 6874:     $skip      - if true make the line for skipping and update the
 6875:                  'skipped' file
 6876: 
 6877: =cut
 6878: 
 6879: sub scantron_put_line {
 6880:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
 6881:     if ($skip) {
 6882: 	$scanlines->{'skipped'}[$i]=$newline;
 6883: 	&start_skipping($scan_data,$i);
 6884: 	return;
 6885:     }
 6886:     $scanlines->{'corrected'}[$i]=$newline;
 6887: }
 6888: 
 6889: =pod
 6890: 
 6891: =item scantron_clear_skip
 6892: 
 6893:    Remove a line from the 'skipped' file
 6894: 
 6895:  Arguments:
 6896:     $scanlines - hash ref that looks like the first return value from
 6897:                  &scantron_getfile()
 6898:     $scan_data - hash ref that looks like the second return value from
 6899:                  &scantron_getfile()
 6900:     $i         - line number to update
 6901: 
 6902: =cut
 6903: 
 6904: sub scantron_clear_skip {
 6905:     my ($scanlines,$scan_data,$i)=@_;
 6906:     if (exists($scanlines->{'skipped'}[$i])) {
 6907: 	undef($scanlines->{'skipped'}[$i]);
 6908: 	return 1;
 6909:     }
 6910:     return 0;
 6911: }
 6912: 
 6913: =pod
 6914: 
 6915: =item scantron_filter_not_exam
 6916: 
 6917:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
 6918:    filter out resources that are not marked as 'exam' mode
 6919: 
 6920: =cut
 6921: 
 6922: sub scantron_filter_not_exam {
 6923:     my ($curres)=@_;
 6924:     
 6925:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
 6926: 	# if the user has asked to not have either hidden
 6927: 	# or 'randomout' controlled resources to be graded
 6928: 	# don't include them
 6929: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6930: 	    && $curres->randomout) {
 6931: 	    return 0;
 6932: 	}
 6933: 	return 1;
 6934:     }
 6935:     return 0;
 6936: }
 6937: 
 6938: =pod
 6939: 
 6940: =item scantron_validate_sequence
 6941: 
 6942:     Validates the selected sequence, checking for resource that are
 6943:     not set to exam mode.
 6944: 
 6945: =cut
 6946: 
 6947: sub scantron_validate_sequence {
 6948:     my ($r,$currentphase) = @_;
 6949: 
 6950:     my $navmap=Apache::lonnavmaps::navmap->new();
 6951:     unless (ref($navmap)) {
 6952:         $r->print(&navmap_errormsg());
 6953:         return (1,$currentphase);
 6954:     }
 6955:     my (undef,undef,$sequence)=
 6956: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 6957: 
 6958:     my $map=$navmap->getResourceByUrl($sequence);
 6959: 
 6960:     $r->print('<input type="hidden" name="validate_sequence_exam"
 6961:                                     value="ignore" />');
 6962:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
 6963: 	my @resources=
 6964: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 6965: 	if (@resources) {
 6966: 	    $r->print("<p>".&mt('Some resources in the sequence currently are not set to exam mode. Grading these resources currently may not work correctly.')."</p>");
 6967: 	    return (1,$currentphase);
 6968: 	}
 6969:     }
 6970: 
 6971:     return (0,$currentphase+1);
 6972: }
 6973: 
 6974: 
 6975: 
 6976: sub scantron_validate_ID {
 6977:     my ($r,$currentphase) = @_;
 6978:     
 6979:     #get student info
 6980:     my $classlist=&Apache::loncoursedata::get_classlist();
 6981:     my %idmap=&username_to_idmap($classlist);
 6982: 
 6983:     #get scantron line setup
 6984:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6985:     my ($scanlines,$scan_data)=&scantron_getfile();
 6986: 
 6987:     my $nav_error;
 6988:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
 6989:     if ($nav_error) {
 6990:         $r->print(&navmap_errormsg());
 6991:         return(1,$currentphase);
 6992:     }
 6993: 
 6994:     my %found=('ids'=>{},'usernames'=>{});
 6995:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6996: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 6997: 	if ($line=~/^[\s\cz]*$/) { next; }
 6998: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 6999: 						 $scan_data);
 7000: 	my $id=$$scan_record{'scantron.ID'};
 7001: 	my $found;
 7002: 	foreach my $checkid (keys(%idmap)) {
 7003: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
 7004: 	}
 7005: 	if ($found) {
 7006: 	    my $username=$idmap{$found};
 7007: 	    if ($found{'ids'}{$found}) {
 7008: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7009: 					 $line,'duplicateID',$found);
 7010: 		return(1,$currentphase);
 7011: 	    } elsif ($found{'usernames'}{$username}) {
 7012: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7013: 					 $line,'duplicateID',$username);
 7014: 		return(1,$currentphase);
 7015: 	    }
 7016: 	    #FIXME store away line we previously saw the ID on to use above
 7017: 	    $found{'ids'}{$found}++;
 7018: 	    $found{'usernames'}{$username}++;
 7019: 	} else {
 7020: 	    if ($id =~ /^\s*$/) {
 7021: 		my $username=&scan_data($scan_data,"$i.user");
 7022: 		if (defined($username) && $found{'usernames'}{$username}) {
 7023: 		    &scantron_get_correction($r,$i,$scan_record,
 7024: 					     \%scantron_config,
 7025: 					     $line,'duplicateID',$username);
 7026: 		    return(1,$currentphase);
 7027: 		} elsif (!defined($username)) {
 7028: 		    &scantron_get_correction($r,$i,$scan_record,
 7029: 					     \%scantron_config,
 7030: 					     $line,'incorrectID');
 7031: 		    return(1,$currentphase);
 7032: 		}
 7033: 		$found{'usernames'}{$username}++;
 7034: 	    } else {
 7035: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7036: 					 $line,'incorrectID');
 7037: 		return(1,$currentphase);
 7038: 	    }
 7039: 	}
 7040:     }
 7041: 
 7042:     return (0,$currentphase+1);
 7043: }
 7044: 
 7045: 
 7046: sub scantron_get_correction {
 7047:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
 7048: #FIXME in the case of a duplicated ID the previous line, probably need
 7049: #to show both the current line and the previous one and allow skipping
 7050: #the previous one or the current one
 7051: 
 7052:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
 7053:         $r->print(
 7054:             '<p class="LC_warning">'
 7055:            .&mt('An error was detected ([_1]) for PaperID [_2]',
 7056:                 "<b>$error</b>",
 7057:                 '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
 7058:            ."</p> \n");
 7059:     } else {
 7060:         $r->print(
 7061:             '<p class="LC_warning">'
 7062:            .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
 7063:                 "<b>$error</b>", $i, "<pre>$line</pre>")
 7064:            ."</p> \n");
 7065:     }
 7066:     my $message =
 7067:         '<p>'
 7068:        .&mt('The ID on the form is [_1]',
 7069:             "<tt>$$scan_record{'scantron.ID'}</tt>")
 7070:        .'<br />'
 7071:        .&mt('The name on the paper is [_1], [_2]',
 7072:             $$scan_record{'scantron.LastName'},
 7073:             $$scan_record{'scantron.FirstName'})
 7074:        .'</p>';
 7075: 
 7076:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
 7077:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
 7078:                            # Array populated for doublebubble or
 7079:     my @lines_to_correct;  # missingbubble errors to build javascript
 7080:                            # to validate radio button checking   
 7081: 
 7082:     if ($error =~ /ID$/) {
 7083: 	if ($error eq 'incorrectID') {
 7084: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
 7085: 		      "</p>\n");
 7086: 	} elsif ($error eq 'duplicateID') {
 7087: 	    $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 7088: 	}
 7089: 	$r->print($message);
 7090: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 7091: 	$r->print("\n<ul><li> ");
 7092: 	#FIXME it would be nice if this sent back the user ID and
 7093: 	#could do partial userID matches
 7094: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 7095: 				       'scantron_username','scantron_domain'));
 7096: 	$r->print(": <input type='text' name='scantron_username' value='' />");
 7097: 	$r->print("\n@".
 7098: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 7099: 
 7100: 	$r->print('</li>');
 7101:     } elsif ($error =~ /CODE$/) {
 7102: 	if ($error eq 'incorrectCODE') {
 7103: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 7104: 	} elsif ($error eq 'duplicateCODE') {
 7105: 	    $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");
 7106: 	}
 7107:         $r->print("<p>".&mt('The CODE on the form is [_1]',
 7108:                             "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
 7109:                  ."</p>\n");
 7110: 	$r->print($message);
 7111: 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
 7112: 	$r->print("\n<br /> ");
 7113: 	my $i=0;
 7114: 	if ($error eq 'incorrectCODE' 
 7115: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
 7116: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
 7117: 	    if ($closest > 0) {
 7118: 		foreach my $testcode (@{$closest}) {
 7119: 		    my $checked='';
 7120: 		    if (!$i) { $checked=' checked="checked"'; }
 7121: 		    $r->print("
 7122:    <label>
 7123:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
 7124:        ".&mt("Use the similar CODE [_1] instead.",
 7125: 	    "<b><tt>".$testcode."</tt></b>")."
 7126:     </label>
 7127:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
 7128: 		    $r->print("\n<br />");
 7129: 		    $i++;
 7130: 		}
 7131: 	    }
 7132: 	}
 7133: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
 7134: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
 7135: 	    $r->print("
 7136:     <label>
 7137:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
 7138:        ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
 7139: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
 7140:     </label>");
 7141: 	    $r->print("\n<br />");
 7142: 	}
 7143: 
 7144: 	$r->print(<<ENDSCRIPT);
 7145: <script type="text/javascript">
 7146: function change_radio(field) {
 7147:     var slct=document.scantronupload.scantron_CODE_resolution;
 7148:     var i;
 7149:     for (i=0;i<slct.length;i++) {
 7150:         if (slct[i].value==field) { slct[i].checked=true; }
 7151:     }
 7152: }
 7153: </script>
 7154: ENDSCRIPT
 7155: 	my $href="/adm/pickcode?".
 7156: 	   "form=".&escape("scantronupload").
 7157: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
 7158: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
 7159: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
 7160: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
 7161: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
 7162: 	    $r->print("
 7163:     <label>
 7164:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
 7165:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
 7166: 	     "<a target='_blank' href='$href'>","</a>")."
 7167:     </label> 
 7168:     ".&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\')" />'));
 7169: 	    $r->print("\n<br />");
 7170: 	}
 7171: 	$r->print("
 7172:     <label>
 7173:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
 7174:        ".&mt("Use [_1] as the CODE.",
 7175: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 7176: 	$r->print("\n<br /><br />");
 7177:     } elsif ($error eq 'doublebubble') {
 7178: 	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 7179: 
 7180: 	# The form field scantron_questions is acutally a list of line numbers.
 7181: 	# represented by this form so:
 7182: 
 7183: 	my $line_list = &questions_to_line_list($arg);
 7184: 
 7185: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7186: 		  $line_list.'" />');
 7187: 	$r->print($message);
 7188: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 7189: 	foreach my $question (@{$arg}) {
 7190: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7191:                                                    $scan_record, $error);
 7192:             push(@lines_to_correct,@linenums);
 7193: 	}
 7194:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7195:     } elsif ($error eq 'missingbubble') {
 7196: 	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
 7197: 	$r->print($message);
 7198: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 7199: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
 7200: 
 7201: 	# The form field scantron_questions is actually a list of line numbers not
 7202: 	# a list of question numbers. Therefore:
 7203: 	#
 7204: 	
 7205: 	my $line_list = &questions_to_line_list($arg);
 7206: 
 7207: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7208: 		  $line_list.'" />');
 7209: 	foreach my $question (@{$arg}) {
 7210: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7211:                                                    $scan_record, $error);
 7212:             push(@lines_to_correct,@linenums);
 7213: 	}
 7214:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7215:     } else {
 7216: 	$r->print("\n<ul>");
 7217:     }
 7218:     $r->print("\n</li></ul>");
 7219: }
 7220: 
 7221: sub verify_bubbles_checked {
 7222:     my (@ansnums) = @_;
 7223:     my $ansnumstr = join('","',@ansnums);
 7224:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
 7225:     my $output = (<<ENDSCRIPT);
 7226: <script type="text/javascript">
 7227: function verify_bubble_radio(form) {
 7228:     var ansnumArray = new Array ("$ansnumstr");
 7229:     var need_bubble_count = 0;
 7230:     for (var i=0; i<ansnumArray.length; i++) {
 7231:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
 7232:             var bubble_picked = 0; 
 7233:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
 7234:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
 7235:                     bubble_picked = 1;
 7236:                 }
 7237:             }
 7238:             if (bubble_picked == 0) {
 7239:                 need_bubble_count ++;
 7240:             }
 7241:         }
 7242:     }
 7243:     if (need_bubble_count) {
 7244:         alert("$warning");
 7245:         return;
 7246:     }
 7247:     form.submit(); 
 7248: }
 7249: </script>
 7250: ENDSCRIPT
 7251:     return $output;
 7252: }
 7253: 
 7254: =pod
 7255: 
 7256: =item  questions_to_line_list
 7257: 
 7258: Converts a list of questions into a string of comma separated
 7259: line numbers in the answer sheet used by the questions.  This is
 7260: used to fill in the scantron_questions form field.
 7261: 
 7262:   Arguments:
 7263:      questions    - Reference to an array of questions.
 7264: 
 7265: =cut
 7266: 
 7267: 
 7268: sub questions_to_line_list {
 7269:     my ($questions) = @_;
 7270:     my @lines;
 7271: 
 7272:     foreach my $item (@{$questions}) {
 7273:         my $question = $item;
 7274:         my ($first,$count,$last);
 7275:         if ($item =~ /^(\d+)\.(\d+)$/) {
 7276:             $question = $1;
 7277:             my $subquestion = $2;
 7278:             $first = $first_bubble_line{$question-1} + 1;
 7279:             my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7280:             my $subcount = 1;
 7281:             while ($subcount<$subquestion) {
 7282:                 $first += $subans[$subcount-1];
 7283:                 $subcount ++;
 7284:             }
 7285:             $count = $subans[$subquestion-1];
 7286:         } else {
 7287: 	    $first   = $first_bubble_line{$question-1} + 1;
 7288: 	    $count   = $bubble_lines_per_response{$question-1};
 7289:         }
 7290:         $last = $first+$count-1;
 7291:         push(@lines, ($first..$last));
 7292:     }
 7293:     return join(',', @lines);
 7294: }
 7295: 
 7296: =pod 
 7297: 
 7298: =item prompt_for_corrections
 7299: 
 7300: Prompts for a potentially multiline correction to the
 7301: user's bubbling (factors out common code from scantron_get_correction
 7302: for multi and missing bubble cases).
 7303: 
 7304:  Arguments:
 7305:    $r           - Apache request object.
 7306:    $question    - The question number to prompt for.
 7307:    $scan_config - The scantron file configuration hash.
 7308:    $scan_record - Reference to the hash that has the the parsed scanlines.
 7309:    $error       - Type of error
 7310: 
 7311:  Implicit inputs:
 7312:    %bubble_lines_per_response   - Starting line numbers for each question.
 7313:                                   Numbered from 0 (but question numbers are from
 7314:                                   1.
 7315:    %first_bubble_line           - Starting bubble line for each question.
 7316:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
 7317:                                   type problems render as separate sub-questions, 
 7318:                                   in exam mode. This hash contains a 
 7319:                                   comma-separated list of the lines per 
 7320:                                   sub-question.
 7321:    %responsetype_per_response   - essayresponse, formularesponse,
 7322:                                   stringresponse, imageresponse, reactionresponse,
 7323:                                   and organicresponse type problem parts can have
 7324:                                   multiple lines per response if the weight
 7325:                                   assigned exceeds 10.  In this case, only
 7326:                                   one bubble per line is permitted, but more 
 7327:                                   than one line might contain bubbles, e.g.
 7328:                                   bubbling of: line 1 - J, line 2 - J, 
 7329:                                   line 3 - B would assign 22 points.  
 7330: 
 7331: =cut
 7332: 
 7333: sub prompt_for_corrections {
 7334:     my ($r, $question, $scan_config, $scan_record, $error) = @_;
 7335:     my ($current_line,$lines);
 7336:     my @linenums;
 7337:     my $questionnum = $question;
 7338:     if ($question =~ /^(\d+)\.(\d+)$/) {
 7339:         $question = $1;
 7340:         $current_line = $first_bubble_line{$question-1} + 1 ;
 7341:         my $subquestion = $2;
 7342:         my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7343:         my $subcount = 1;
 7344:         while ($subcount<$subquestion) {
 7345:             $current_line += $subans[$subcount-1];
 7346:             $subcount ++;
 7347:         }
 7348:         $lines = $subans[$subquestion-1];
 7349:     } else {
 7350:         $current_line = $first_bubble_line{$question-1} + 1 ;
 7351:         $lines        = $bubble_lines_per_response{$question-1};
 7352:     }
 7353:     if ($lines > 1) {
 7354:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
 7355:         if (($responsetype_per_response{$question-1} eq 'essayresponse') ||
 7356:             ($responsetype_per_response{$question-1} eq 'formularesponse') ||
 7357:             ($responsetype_per_response{$question-1} eq 'stringresponse') ||
 7358:             ($responsetype_per_response{$question-1} eq 'imageresponse') ||
 7359:             ($responsetype_per_response{$question-1} eq 'reactionresponse') ||
 7360:             ($responsetype_per_response{$question-1} eq 'organicresponse')) {
 7361:             $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines).'<br /><br />'.&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.').'<br />'.&mt('The score for this question will be a sum of the numeric values for the selected bubbles from each line, where A=1 point, B=2 points etc.').'<br />'.&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.").'<br /><br />');
 7362:         } else {
 7363:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
 7364:         }
 7365:     }
 7366:     for (my $i =0; $i < $lines; $i++) {
 7367:         my $selected = $$scan_record{"scantron.$current_line.answer"};
 7368: 	&scantron_bubble_selector($r,$scan_config,$current_line, 
 7369: 	        		  $questionnum,$error,split('', $selected));
 7370:         push(@linenums,$current_line);
 7371: 	$current_line++;
 7372:     }
 7373:     if ($lines > 1) {
 7374: 	$r->print("<hr /><br />");
 7375:     }
 7376:     return @linenums;
 7377: }
 7378: 
 7379: =pod
 7380: 
 7381: =item scantron_bubble_selector
 7382:   
 7383:    Generates the html radiobuttons to correct a single bubble line
 7384:    possibly showing the existing the selected bubbles if known
 7385: 
 7386:  Arguments:
 7387:     $r           - Apache request object
 7388:     $scan_config - hash from &get_scantron_config()
 7389:     $line        - Number of the line being displayed.
 7390:     $questionnum - Question number (may include subquestion)
 7391:     $error       - Type of error.
 7392:     @selected    - Array of bubbles picked on this line.
 7393: 
 7394: =cut
 7395: 
 7396: sub scantron_bubble_selector {
 7397:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
 7398:     my $max=$$scan_config{'Qlength'};
 7399: 
 7400:     my $scmode=$$scan_config{'Qon'};
 7401:     if ($scmode eq 'number' || $scmode eq 'letter') {
 7402:         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
 7403:             ($$scan_config{'BubblesPerRow'} > 0)) {
 7404:             $max=$$scan_config{'BubblesPerRow'};
 7405:             if (($scmode eq 'number') && ($max > 10)) {
 7406:                 $max = 10;
 7407:             } elsif (($scmode eq 'letter') && $max > 26) {
 7408:                 $max = 26;
 7409:             }
 7410:         } else {
 7411:             $max = 10;
 7412:         }
 7413:     }
 7414: 
 7415:     my @alphabet=('A'..'Z');
 7416:     $r->print(&Apache::loncommon::start_data_table().
 7417:               &Apache::loncommon::start_data_table_row());
 7418:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
 7419:     for (my $i=0;$i<$max+1;$i++) {
 7420: 	$r->print("\n".'<td align="center">');
 7421: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
 7422: 	else { $r->print('&nbsp;'); }
 7423: 	$r->print('</td>');
 7424:     }
 7425:     $r->print(&Apache::loncommon::end_data_table_row().
 7426:               &Apache::loncommon::start_data_table_row());
 7427:     for (my $i=0;$i<$max;$i++) {
 7428: 	$r->print("\n".
 7429: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
 7430: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
 7431:     }
 7432:     my $nobub_checked = ' ';
 7433:     if ($error eq 'missingbubble') {
 7434:         $nobub_checked = ' checked = "checked" ';
 7435:     }
 7436:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
 7437: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
 7438:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
 7439:               $line.'" value="'.$questionnum.'" /></td>');
 7440:     $r->print(&Apache::loncommon::end_data_table_row().
 7441:               &Apache::loncommon::end_data_table());
 7442: }
 7443: 
 7444: =pod
 7445: 
 7446: =item num_matches
 7447: 
 7448:    Counts the number of characters that are the same between the two arguments.
 7449: 
 7450:  Arguments:
 7451:    $orig - CODE from the scanline
 7452:    $code - CODE to match against
 7453: 
 7454:  Returns:
 7455:    $count - integer count of the number of same characters between the
 7456:             two arguments
 7457: 
 7458: =cut
 7459: 
 7460: sub num_matches {
 7461:     my ($orig,$code) = @_;
 7462:     my @code=split(//,$code);
 7463:     my @orig=split(//,$orig);
 7464:     my $same=0;
 7465:     for (my $i=0;$i<scalar(@code);$i++) {
 7466: 	if ($code[$i] eq $orig[$i]) { $same++; }
 7467:     }
 7468:     return $same;
 7469: }
 7470: 
 7471: =pod
 7472: 
 7473: =item scantron_get_closely_matching_CODEs
 7474: 
 7475:    Cycles through all CODEs and finds the set that has the greatest
 7476:    number of same characters as the provided CODE
 7477: 
 7478:  Arguments:
 7479:    $allcodes - hash ref returned by &get_codes()
 7480:    $CODE     - CODE from the current scanline
 7481: 
 7482:  Returns:
 7483:    2 element list
 7484:     - first elements is number of how closely matching the best fit is 
 7485:       (5 means best set has 5 matching characters)
 7486:     - second element is an arrary ref containing the set of valid CODEs
 7487:       that best fit the passed in CODE
 7488: 
 7489: =cut
 7490: 
 7491: sub scantron_get_closely_matching_CODEs {
 7492:     my ($allcodes,$CODE)=@_;
 7493:     my @CODEs;
 7494:     foreach my $testcode (sort(keys(%{$allcodes}))) {
 7495: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
 7496:     }
 7497: 
 7498:     return ($#CODEs,$CODEs[-1]);
 7499: }
 7500: 
 7501: =pod
 7502: 
 7503: =item get_codes
 7504: 
 7505:    Builds a hash which has keys of all of the valid CODEs from the selected
 7506:    set of remembered CODEs.
 7507: 
 7508:  Arguments:
 7509:   $old_name - name of the set of remembered CODEs
 7510:   $cdom     - domain of the course
 7511:   $cnum     - internal course name
 7512: 
 7513:  Returns:
 7514:   %allcodes - keys are the valid CODEs, values are all 1
 7515: 
 7516: =cut
 7517: 
 7518: sub get_codes {
 7519:     my ($old_name, $cdom, $cnum) = @_;
 7520:     if (!$old_name) {
 7521: 	$old_name=$env{'form.scantron_CODElist'};
 7522:     }
 7523:     if (!$cdom) {
 7524: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
 7525:     }
 7526:     if (!$cnum) {
 7527: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
 7528:     }
 7529:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
 7530: 				    $cdom,$cnum);
 7531:     my %allcodes;
 7532:     if ($result{"type\0$old_name"} eq 'number') {
 7533: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
 7534:     } else {
 7535: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
 7536:     }
 7537:     return %allcodes;
 7538: }
 7539: 
 7540: =pod
 7541: 
 7542: =item scantron_validate_CODE
 7543: 
 7544:    Validates all scanlines in the selected file to not have any
 7545:    invalid or underspecified CODEs and that none of the codes are
 7546:    duplicated if this was requested.
 7547: 
 7548: =cut
 7549: 
 7550: sub scantron_validate_CODE {
 7551:     my ($r,$currentphase) = @_;
 7552:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7553:     if ($scantron_config{'CODElocation'} &&
 7554: 	$scantron_config{'CODEstart'} &&
 7555: 	$scantron_config{'CODElength'}) {
 7556: 	if (!defined($env{'form.scantron_CODElist'})) {
 7557: 	    &FIXME_blow_up()
 7558: 	}
 7559:     } else {
 7560: 	return (0,$currentphase+1);
 7561:     }
 7562:     
 7563:     my %usedCODEs;
 7564: 
 7565:     my %allcodes=&get_codes();
 7566: 
 7567:     my $nav_error;
 7568:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
 7569:     if ($nav_error) {
 7570:         $r->print(&navmap_errormsg());
 7571:         return(1,$currentphase);
 7572:     }
 7573: 
 7574:     my ($scanlines,$scan_data)=&scantron_getfile();
 7575:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7576: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7577: 	if ($line=~/^[\s\cz]*$/) { next; }
 7578: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7579: 						 $scan_data);
 7580: 	my $CODE=$$scan_record{'scantron.CODE'};
 7581: 	my $error=0;
 7582: 	if (!&Apache::lonnet::validCODE($CODE)) {
 7583: 	    &scantron_get_correction($r,$i,$scan_record,
 7584: 				     \%scantron_config,
 7585: 				     $line,'incorrectCODE',\%allcodes);
 7586: 	    return(1,$currentphase);
 7587: 	}
 7588: 	if (%allcodes && !exists($allcodes{$CODE}) 
 7589: 	    && !$$scan_record{'scantron.useCODE'}) {
 7590: 	    &scantron_get_correction($r,$i,$scan_record,
 7591: 				     \%scantron_config,
 7592: 				     $line,'incorrectCODE',\%allcodes);
 7593: 	    return(1,$currentphase);
 7594: 	}
 7595: 	if (exists($usedCODEs{$CODE}) 
 7596: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
 7597: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
 7598: 	    &scantron_get_correction($r,$i,$scan_record,
 7599: 				     \%scantron_config,
 7600: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
 7601: 	    return(1,$currentphase);
 7602: 	}
 7603: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
 7604:     }
 7605:     return (0,$currentphase+1);
 7606: }
 7607: 
 7608: =pod
 7609: 
 7610: =item scantron_validate_doublebubble
 7611: 
 7612:    Validates all scanlines in the selected file to not have any
 7613:    bubble lines with multiple bubbles marked.
 7614: 
 7615: =cut
 7616: 
 7617: sub scantron_validate_doublebubble {
 7618:     my ($r,$currentphase) = @_;
 7619:     #get student info
 7620:     my $classlist=&Apache::loncoursedata::get_classlist();
 7621:     my %idmap=&username_to_idmap($classlist);
 7622: 
 7623:     #get scantron line setup
 7624:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7625:     my ($scanlines,$scan_data)=&scantron_getfile();
 7626:     my $nav_error;
 7627:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
 7628:     if ($nav_error) {
 7629:         $r->print(&navmap_errormsg());
 7630:         return(1,$currentphase);
 7631:     }
 7632: 
 7633:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7634: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7635: 	if ($line=~/^[\s\cz]*$/) { next; }
 7636: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7637: 						 $scan_data);
 7638: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 7639: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 7640: 				 'doublebubble',
 7641: 				 $$scan_record{'scantron.doubleerror'});
 7642:     	return (1,$currentphase);
 7643:     }
 7644:     return (0,$currentphase+1);
 7645: }
 7646: 
 7647: 
 7648: sub scantron_get_maxbubble {
 7649:     my ($nav_error,$scantron_config) = @_;
 7650:     if (defined($env{'form.scantron_maxbubble'}) &&
 7651: 	$env{'form.scantron_maxbubble'}) {
 7652: 	&restore_bubble_lines();
 7653: 	return $env{'form.scantron_maxbubble'};
 7654:     }
 7655: 
 7656:     my (undef, undef, $sequence) =
 7657: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7658: 
 7659:     my $navmap=Apache::lonnavmaps::navmap->new();
 7660:     unless (ref($navmap)) {
 7661:         if (ref($nav_error)) {
 7662:             $$nav_error = 1;
 7663:         }
 7664:         return;
 7665:     }
 7666:     my $map=$navmap->getResourceByUrl($sequence);
 7667:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7668:     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
 7669: 
 7670:     &Apache::lonxml::clear_problem_counter();
 7671: 
 7672:     my $uname       = $env{'user.name'};
 7673:     my $udom        = $env{'user.domain'};
 7674:     my $cid         = $env{'request.course.id'};
 7675:     my $total_lines = 0;
 7676:     %bubble_lines_per_response = ();
 7677:     %first_bubble_line         = ();
 7678:     %subdivided_bubble_lines   = ();
 7679:     %responsetype_per_response = ();
 7680: 
 7681:     my $response_number = 0;
 7682:     my $bubble_line     = 0;
 7683:     foreach my $resource (@resources) {
 7684:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
 7685:                                                           $udom,$bubbles_per_row);
 7686:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 7687: 	    foreach my $part_id (@{$parts}) {
 7688:                 my $lines;
 7689: 
 7690: 	        # TODO - make this a persistent hash not an array.
 7691: 
 7692:                 # optionresponse, matchresponse and rankresponse type items 
 7693:                 # render as separate sub-questions in exam mode.
 7694:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
 7695:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
 7696:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
 7697:                     my ($numbub,$numshown);
 7698:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
 7699:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
 7700:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
 7701:                         }
 7702:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
 7703:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
 7704:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
 7705:                         }
 7706:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
 7707:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
 7708:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
 7709:                         }
 7710:                     }
 7711:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
 7712:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
 7713:                     }
 7714:                     my $bubbles_per_row =
 7715:                         &bubblesheet_bubbles_per_row($scantron_config);
 7716:                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
 7717:                     if (($numbub % $bubbles_per_row) != 0) {
 7718:                         $inner_bubble_lines++;
 7719:                     }
 7720:                     for (my $i=0; $i<$numshown; $i++) {
 7721:                         $subdivided_bubble_lines{$response_number} .= 
 7722:                             $inner_bubble_lines.',';
 7723:                     }
 7724:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
 7725:                     $lines = $numshown * $inner_bubble_lines;
 7726:                 } else {
 7727:                     $lines = $analysis->{"$part_id.bubble_lines"};
 7728:                 }
 7729: 
 7730:                 $first_bubble_line{$response_number} = $bubble_line;
 7731: 	        $bubble_lines_per_response{$response_number} = $lines;
 7732:                 $responsetype_per_response{$response_number} = 
 7733:                     $analysis->{$part_id.'.type'};
 7734: 	        $response_number++;
 7735: 
 7736: 	        $bubble_line +=  $lines;
 7737: 	        $total_lines +=  $lines;
 7738: 	    }
 7739:         }
 7740:     }
 7741:     &Apache::lonnet::delenv('scantron.');
 7742: 
 7743:     &save_bubble_lines();
 7744:     $env{'form.scantron_maxbubble'} =
 7745: 	$total_lines;
 7746:     return $env{'form.scantron_maxbubble'};
 7747: }
 7748: 
 7749: sub bubblesheet_bubbles_per_row {
 7750:     my ($scantron_config) = @_;
 7751:     my $bubbles_per_row;
 7752:     if (ref($scantron_config) eq 'HASH') {
 7753:         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
 7754:     }
 7755:     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
 7756:         $bubbles_per_row = 10;
 7757:     }
 7758:     return $bubbles_per_row;
 7759: }
 7760: 
 7761: sub scantron_validate_missingbubbles {
 7762:     my ($r,$currentphase) = @_;
 7763:     #get student info
 7764:     my $classlist=&Apache::loncoursedata::get_classlist();
 7765:     my %idmap=&username_to_idmap($classlist);
 7766: 
 7767:     #get scantron line setup
 7768:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7769:     my ($scanlines,$scan_data)=&scantron_getfile();
 7770:     my $nav_error;
 7771:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 7772:     if ($nav_error) {
 7773:         return(1,$currentphase);
 7774:     }
 7775:     if (!$max_bubble) { $max_bubble=2**31; }
 7776:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7777: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7778: 	if ($line=~/^[\s\cz]*$/) { next; }
 7779: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7780: 						 $scan_data);
 7781: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 7782: 	my @to_correct;
 7783: 	
 7784: 	# Probably here's where the error is...
 7785: 
 7786: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
 7787:             my $lastbubble;
 7788:             if ($missing =~ /^(\d+)\.(\d+)$/) {
 7789:                my $question = $1;
 7790:                my $subquestion = $2;
 7791:                if (!defined($first_bubble_line{$question -1})) { next; }
 7792:                my $first = $first_bubble_line{$question-1};
 7793:                my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7794:                my $subcount = 1;
 7795:                while ($subcount<$subquestion) {
 7796:                    $first += $subans[$subcount-1];
 7797:                    $subcount ++;
 7798:                }
 7799:                my $count = $subans[$subquestion-1];
 7800:                $lastbubble = $first + $count;
 7801:             } else {
 7802:                 if (!defined($first_bubble_line{$missing - 1})) { next; }
 7803:                 $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1};
 7804:             }
 7805:             if ($lastbubble > $max_bubble) { next; }
 7806: 	    push(@to_correct,$missing);
 7807: 	}
 7808: 	if (@to_correct) {
 7809: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7810: 				     $line,'missingbubble',\@to_correct);
 7811: 	    return (1,$currentphase);
 7812: 	}
 7813: 
 7814:     }
 7815:     return (0,$currentphase+1);
 7816: }
 7817: 
 7818: 
 7819: sub scantron_process_students {
 7820:     my ($r) = @_;
 7821: 
 7822:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7823:     my ($symb)=&get_symb($r);
 7824:     if (!$symb) {
 7825: 	return '';
 7826:     }
 7827:     my $default_form_data=&defaultFormData($symb);
 7828: 
 7829:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7830:     my ($scanlines,$scan_data)=&scantron_getfile();
 7831:     my $classlist=&Apache::loncoursedata::get_classlist();
 7832:     my %idmap=&username_to_idmap($classlist);
 7833:     my $navmap=Apache::lonnavmaps::navmap->new();
 7834:     unless (ref($navmap)) {
 7835:         $r->print(&navmap_errormsg());
 7836:         return '';
 7837:     }  
 7838:     my $map=$navmap->getResourceByUrl($sequence);
 7839:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7840:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
 7841:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 7842:                             \%grader_randomlists_by_symb);
 7843:     my $resource_error;
 7844:     foreach my $resource (@resources) {
 7845:         my $ressymb;
 7846:         if (ref($resource)) {
 7847:             $ressymb = $resource->symb();
 7848:         } else {
 7849:             $resource_error = 1;
 7850:             last;
 7851:         }
 7852:         my ($analysis,$parts) =
 7853:             &scantron_partids_tograde($resource,$env{'request.course.id'},
 7854:                                       $env{'user.name'},$env{'user.domain'},
 7855:                                       1,$bubbles_per_row);
 7856:         $grader_partids_by_symb{$ressymb} = $parts;
 7857:         if (ref($analysis) eq 'HASH') {
 7858:             if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 7859:                 $grader_randomlists_by_symb{$ressymb} = 
 7860:                     $analysis->{'parts_withrandomlist'};
 7861:             }
 7862:         }
 7863:     }
 7864:     if ($resource_error) {
 7865:         $r->print(&navmap_errormsg());
 7866:         return '';
 7867:     }
 7868: 
 7869:     my ($uname,$udom);
 7870:     my $result= <<SCANTRONFORM;
 7871: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 7872:   <input type="hidden" name="command" value="scantron_configphase" />
 7873:   $default_form_data
 7874: SCANTRONFORM
 7875:     $r->print($result);
 7876: 
 7877:     my @delayqueue;
 7878:     my (%completedstudents,%scandata);
 7879:     
 7880:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
 7881:     my $count=&get_todo_count($scanlines,$scan_data);
 7882:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet Status',
 7883:  				    'Bubblesheet Progress',$count,
 7884: 				    'inline',undef,'scantronupload');
 7885:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 7886: 					  'Processing first student');
 7887:     $r->print('<br />');
 7888:     my $start=&Time::HiRes::time();
 7889:     my $i=-1;
 7890:     my $started;
 7891: 
 7892:     my $nav_error;
 7893:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 7894:     if ($nav_error) {
 7895:         $r->print(&navmap_errormsg());
 7896:         return '';
 7897:     }
 7898: 
 7899:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
 7900:     # the user and return.
 7901: 
 7902:     if ($ssi_error) {
 7903: 	$r->print("</form>");
 7904: 	&ssi_print_error($r);
 7905: 	$r->print(&show_grading_menu_form($symb));
 7906:         &Apache::lonnet::remove_lock($lock);
 7907: 	return '';		# Dunno why the other returns return '' rather than just returning.
 7908:     }
 7909: 
 7910:     my %lettdig = &letter_to_digits();
 7911:     my $numletts = scalar(keys(%lettdig));
 7912: 
 7913:     while ($i<$scanlines->{'count'}) {
 7914:  	($uname,$udom)=('','');
 7915:  	$i++;
 7916:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7917:  	if ($line=~/^[\s\cz]*$/) { next; }
 7918: 	if ($started) {
 7919: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 7920: 						     'last student');
 7921: 	}
 7922: 	$started=1;
 7923:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7924:  						 $scan_data);
 7925:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
 7926:  					      \%idmap,$i)) {
 7927:   	    &scantron_add_delay(\@delayqueue,$line,
 7928:  				'Unable to find a student that matches',1);
 7929:  	    next;
 7930:   	}
 7931:  	if (exists $completedstudents{$uname}) {
 7932:  	    &scantron_add_delay(\@delayqueue,$line,
 7933:  				'Student '.$uname.' has multiple sheets',2);
 7934:  	    next;
 7935:  	}
 7936:   	($uname,$udom)=split(/:/,$uname);
 7937: 
 7938:         my (%partids_by_symb,$res_error);
 7939:         foreach my $resource (@resources) {
 7940:             my $ressymb;
 7941:             if (ref($resource)) {
 7942:                 $ressymb = $resource->symb();
 7943:             } else {
 7944:                 $res_error = 1;
 7945:                 last;
 7946:             }
 7947:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 7948:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 7949:                 my ($analysis,$parts) =
 7950:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 7951:                                               $uname,$udom,undef,$bubbles_per_row);
 7952:                 $partids_by_symb{$ressymb} = $parts;
 7953:             } else {
 7954:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
 7955:             }
 7956:         }
 7957: 
 7958:         if ($res_error) {
 7959:             &scantron_add_delay(\@delayqueue,$line,
 7960:                                 'An error occurred while grading student '.$uname,2);
 7961:             next;
 7962:         }
 7963: 
 7964: 	&Apache::lonxml::clear_problem_counter();
 7965:   	&Apache::lonnet::appenv($scan_record);
 7966: 
 7967: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
 7968: 	    &scantron_putfile($scanlines,$scan_data);
 7969: 	}
 7970: 	
 7971:         my $scancode;
 7972:         if ((exists($scan_record->{'scantron.CODE'})) &&
 7973:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 7974:             $scancode = $scan_record->{'scantron.CODE'};
 7975:         } else {
 7976:             $scancode = '';
 7977:         }
 7978: 
 7979:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 7980:                                    \@resources,\%partids_by_symb,
 7981:                                    $bubbles_per_row) eq 'ssi_error') {
 7982:             $ssi_error = 0; # So end of handler error message does not trigger.
 7983:             $r->print("</form>");
 7984:             &ssi_print_error($r);
 7985:             $r->print(&show_grading_menu_form($symb));
 7986:             &Apache::lonnet::remove_lock($lock);
 7987:             return '';      # Why return ''?  Beats me.
 7988:         }
 7989: 
 7990: 	$completedstudents{$uname}={'line'=>$line};
 7991:         if ($env{'form.verifyrecord'}) {
 7992:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 7993:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 7994:             chomp($studentdata);
 7995:             $studentdata =~ s/\r$//;
 7996:             my $studentrecord = '';
 7997:             my $counter = -1;
 7998:             foreach my $resource (@resources) {
 7999:                 my $ressymb = $resource->symb();
 8000:                 ($counter,my $recording) =
 8001:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8002:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
 8003:                                              \%scantron_config,\%lettdig,$numletts);
 8004:                 $studentrecord .= $recording;
 8005:             }
 8006:             if ($studentrecord ne $studentdata) {
 8007:                 &Apache::lonxml::clear_problem_counter();
 8008:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8009:                                            \@resources,\%partids_by_symb,
 8010:                                            $bubbles_per_row) eq 'ssi_error') {
 8011:                     $ssi_error = 0; # So end of handler error message does not trigger.
 8012:                     $r->print("</form>");
 8013:                     &ssi_print_error($r);
 8014:                     $r->print(&show_grading_menu_form($symb));
 8015:                     &Apache::lonnet::remove_lock($lock);
 8016:                     delete($completedstudents{$uname});
 8017:                     return '';
 8018:                 }
 8019:                 $counter = -1;
 8020:                 $studentrecord = '';
 8021:                 foreach my $resource (@resources) {
 8022:                     my $ressymb = $resource->symb();
 8023:                     ($counter,my $recording) =
 8024:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8025:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
 8026:                                                  \%scantron_config,\%lettdig,$numletts);
 8027:                     $studentrecord .= $recording;
 8028:                 }
 8029:                 if ($studentrecord ne $studentdata) {
 8030:                     $r->print('<p><span class="LC_warning">');
 8031:                     if ($scancode eq '') {
 8032:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
 8033:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
 8034:                     } else {
 8035:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
 8036:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
 8037:                     }
 8038:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
 8039:                               &Apache::loncommon::start_data_table_header_row()."\n".
 8040:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
 8041:                               &Apache::loncommon::end_data_table_header_row()."\n".
 8042:                               &Apache::loncommon::start_data_table_row().
 8043:                               '<td>'.&mt('Bubblesheet').'</td>'.
 8044:                               '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
 8045:                               &Apache::loncommon::end_data_table_row().
 8046:                               &Apache::loncommon::start_data_table_row().
 8047:                               '<td>'.&mt('Stored submissions').'</td>'.
 8048:                               '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
 8049:                               &Apache::loncommon::end_data_table_row().
 8050:                               &Apache::loncommon::end_data_table().'</p>');
 8051:                 } else {
 8052:                     $r->print('<br /><span class="LC_warning">'.
 8053:                              &mt('A second grading pass was needed for user: [_1] with ID: [_2], because a mismatch was seen on the first pass.',$uname.':'.$udom,$scan_record->{'scantron.ID'}).'<br />'.
 8054:                              &mt("As a consequence, this user's submission history records two tries.").
 8055:                                  '</span><br />');
 8056:                 }
 8057:             }
 8058:         }
 8059:         if (&Apache::loncommon::connection_aborted($r)) { last; }
 8060:     } continue {
 8061: 	&Apache::lonxml::clear_problem_counter();
 8062: 	&Apache::lonnet::delenv('scantron.');
 8063:     }
 8064:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8065:     &Apache::lonnet::remove_lock($lock);
 8066: #    my $lasttime = &Time::HiRes::time()-$start;
 8067: #    $r->print("<p>took $lasttime</p>");
 8068: 
 8069:     $r->print("</form>");
 8070:     $r->print(&show_grading_menu_form($symb));
 8071:     return '';
 8072: }
 8073: 
 8074: sub graders_resources_pass {
 8075:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb) = @_;
 8076:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
 8077:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
 8078:         foreach my $resource (@{$resources}) {
 8079:             my $ressymb = $resource->symb();
 8080:             my ($analysis,$parts) =
 8081:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
 8082:                                           $env{'user.name'},$env{'user.domain'},
 8083:                                           1,$bubbles_per_row);
 8084:             $grader_partids_by_symb->{$ressymb} = $parts;
 8085:             if (ref($analysis) eq 'HASH') {
 8086:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 8087:                     $grader_randomlists_by_symb->{$ressymb} =
 8088:                         $analysis->{'parts_withrandomlist'};
 8089:                 }
 8090:             }
 8091:         }
 8092:     }
 8093:     return;
 8094: }
 8095: 
 8096: sub grade_student_bubbles {
 8097:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row) = @_;
 8098:     if (ref($resources) eq 'ARRAY') {
 8099:         my $count = 0;
 8100:         foreach my $resource (@{$resources}) {
 8101:             my $ressymb = $resource->symb();
 8102:             my %form = ('submitted'      => 'scantron',
 8103:                         'grade_target'   => 'grade',
 8104:                         'grade_username' => $uname,
 8105:                         'grade_domain'   => $udom,
 8106:                         'grade_courseid' => $env{'request.course.id'},
 8107:                         'grade_symb'     => $ressymb,
 8108:                         'CODE'           => $scancode
 8109:                        );
 8110:             if ($bubbles_per_row ne '') {
 8111:                 $form{'bubbles_per_row'} = $bubbles_per_row;
 8112:             }
 8113:             if (ref($parts) eq 'HASH') {
 8114:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
 8115:                     foreach my $part (@{$parts->{$ressymb}}) {
 8116:                         $form{'scantron_questnum_start.'.$part} =
 8117:                             1+$env{'form.scantron.first_bubble_line.'.$count};
 8118:                         $count++;
 8119:                     }
 8120:                 }
 8121:             }
 8122:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
 8123:             return 'ssi_error' if ($ssi_error);
 8124:             last if (&Apache::loncommon::connection_aborted($r));
 8125:         }
 8126:     }
 8127:     return;
 8128: }
 8129: 
 8130: sub scantron_upload_scantron_data {
 8131:     my ($r)=@_;
 8132:     my $dom = $env{'request.role.domain'};
 8133:     my $domdesc = &Apache::lonnet::domain($dom,'description');
 8134:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
 8135:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
 8136: 							  'domainid',
 8137: 							  'coursename',$dom);
 8138:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
 8139:                        ('&nbsp'x2).&mt('(shows course personnel)'); 
 8140:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 8141:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
 8142:     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.");
 8143:     $r->print('
 8144: <script type="text/javascript" language="javascript">
 8145:     function checkUpload(formname) {
 8146: 	if (formname.upfile.value == "") {
 8147: 	    alert("'.$nofile_alert.'");
 8148: 	    return false;
 8149: 	}
 8150:         if (formname.courseid.value == "") {
 8151:             alert("'.$nocourseid_alert.'");
 8152:             return false;
 8153:         }
 8154: 	formname.submit();
 8155:     }
 8156: 
 8157:     function ToSyllabus() {
 8158:         var cdom = '."'$dom'".';
 8159:         var cnum = document.rules.courseid.value;
 8160:         if (cdom == "" || cdom == null) {
 8161:             return;
 8162:         }
 8163:         if (cnum == "" || cnum == null) {
 8164:            return;
 8165:         }
 8166:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
 8167:                             "height=350,width=350,scrollbars=yes,menubar=no");
 8168:         return;
 8169:     }
 8170: 
 8171: </script>
 8172: 
 8173: <h3>'.&mt('Send bubblesheet data to a course').'</h3>
 8174: 
 8175: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 8176: '.$default_form_data.
 8177:   &Apache::lonhtmlcommon::start_pick_box().
 8178:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
 8179:   '<input name="courseid" type="text" size="30" />'.$select_link.
 8180:   &Apache::lonhtmlcommon::row_closure().
 8181:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
 8182:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
 8183:   &Apache::lonhtmlcommon::row_closure().
 8184:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
 8185:   '<input name="domainid" type="hidden" />'.$domdesc.
 8186:   &Apache::lonhtmlcommon::row_closure().
 8187:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
 8188:   '<input type="file" name="upfile" size="50" />'.
 8189:   &Apache::lonhtmlcommon::row_closure(1).
 8190:   &Apache::lonhtmlcommon::end_pick_box().'<br />
 8191: 
 8192: <input name="command" value="scantronupload_save" type="hidden" />
 8193: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 8194: </form>
 8195: ');
 8196:     return '';
 8197: }
 8198: 
 8199: 
 8200: sub scantron_upload_scantron_data_save {
 8201:     my($r)=@_;
 8202:     my ($symb)=&get_symb($r,1);
 8203:     my $doanotherupload=
 8204: 	'<br /><form action="/adm/grades" method="post">'."\n".
 8205: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
 8206: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
 8207: 	'</form>'."\n";
 8208:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 8209: 	!&Apache::lonnet::allowed('usc',
 8210: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
 8211: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
 8212: 	if ($symb) {
 8213: 	    $r->print(&show_grading_menu_form($symb));
 8214: 	} else {
 8215: 	    $r->print($doanotherupload);
 8216: 	}
 8217: 	return '';
 8218:     }
 8219:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
 8220:     my $uploadedfile;
 8221:     $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
 8222:     if (length($env{'form.upfile'}) < 2) {
 8223:         $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','<span class="LC_error">','</span>','<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8224:     } else {
 8225:         my $result = 
 8226:             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
 8227:                                             $env{'form.courseid'},$env{'form.domainid'});
 8228: 	if ($result =~ m{^/uploaded/}) {
 8229: 	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
 8230:                           '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
 8231: 			  '<span class="LC_filename">'.$result.'</span>'));
 8232:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
 8233:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
 8234:                                                        $env{'form.courseid'},$uploadedfile));
 8235: 	} else {
 8236: 	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
 8237:                           '<span class="LC_error">','</span>',$result,
 8238: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8239: 	}
 8240:     }
 8241:     if ($symb) {
 8242: 	$r->print(&scantron_selectphase($r,$uploadedfile));
 8243:     } else {
 8244: 	$r->print($doanotherupload);
 8245:     }
 8246:     return '';
 8247: }
 8248: 
 8249: sub validate_uploaded_scantron_file {
 8250:     my ($cdom,$cname,$fname) = @_;
 8251:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
 8252:     my @lines;
 8253:     if ($scanlines ne '-1') {
 8254:         @lines=split("\n",$scanlines,-1);
 8255:     }
 8256:     my $output;
 8257:     if (@lines) {
 8258:         my (%counts,$max_match_format);
 8259:         my ($max_match_count,$max_match_pct) = (0,0);
 8260:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
 8261:         my %idmap = &username_to_idmap($classlist);
 8262:         foreach my $key (keys(%idmap)) {
 8263:             my $lckey = lc($key);
 8264:             $idmap{$lckey} = $idmap{$key};
 8265:         }
 8266:         my %unique_formats;
 8267:         my @formatlines = &get_scantronformat_file();
 8268:         foreach my $line (@formatlines) {
 8269:             chomp($line);
 8270:             my @config = split(/:/,$line);
 8271:             my $idstart = $config[5];
 8272:             my $idlength = $config[6];
 8273:             if (($idstart ne '') && ($idlength > 0)) {
 8274:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
 8275:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
 8276:                 } else {
 8277:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
 8278:                 }
 8279:             }
 8280:         }
 8281:         foreach my $key (keys(%unique_formats)) {
 8282:             my ($idstart,$idlength) = split(':',$key);
 8283:             %{$counts{$key}} = (
 8284:                                'found'   => 0,
 8285:                                'total'   => 0,
 8286:                               );
 8287:             foreach my $line (@lines) {
 8288:                 next if ($line =~ /^#/);
 8289:                 next if ($line =~ /^[\s\cz]*$/);
 8290:                 my $id = substr($line,$idstart-1,$idlength);
 8291:                 $id = lc($id);
 8292:                 if (exists($idmap{$id})) {
 8293:                     $counts{$key}{'found'} ++;
 8294:                 }
 8295:                 $counts{$key}{'total'} ++;
 8296:             }
 8297:             if ($counts{$key}{'total'}) {
 8298:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
 8299:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
 8300:                     $max_match_pct = $percent_match;
 8301:                     $max_match_format = $key;
 8302:                     $max_match_count = $counts{$key}{'total'};
 8303:                 }
 8304:             }
 8305:         }
 8306:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
 8307:             my $format_descs;
 8308:             my $numwithformat = @{$unique_formats{$max_match_format}};
 8309:             for (my $i=0; $i<$numwithformat; $i++) {
 8310:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
 8311:                 if ($i<$numwithformat-2) {
 8312:                     $format_descs .= '"<i>'.$desc.'</i>", ';
 8313:                 } elsif ($i==$numwithformat-2) {
 8314:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
 8315:                 } elsif ($i==$numwithformat-1) {
 8316:                     $format_descs .= '"<i>'.$desc.'</i>"';
 8317:                 }
 8318:             }
 8319:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
 8320:             $output .= '<br />'.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).','<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
 8321:                        '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
 8322:                        '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
 8323:                        '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
 8324:                                   '<i>'.$cdom.'</i>').'</li>'.
 8325:                        '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
 8326:                        '<li>'.&mt('The course roster is not up to date').'</li>'.
 8327:                        '</ul>';
 8328:         }
 8329:     } else {
 8330:         $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
 8331:     }
 8332:     return $output;
 8333: }
 8334: 
 8335: sub valid_file {
 8336:     my ($requested_file)=@_;
 8337:     foreach my $filename (sort(&scantron_filenames())) {
 8338: 	if ($requested_file eq $filename) { return 1; }
 8339:     }
 8340:     return 0;
 8341: }
 8342: 
 8343: sub scantron_download_scantron_data {
 8344:     my ($r)=@_;
 8345:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 8346:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 8347:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 8348:     my $file=$env{'form.scantron_selectfile'};
 8349:     if (! &valid_file($file)) {
 8350: 	$r->print('
 8351: 	<p>
 8352: 	    '.&mt('The requested file name was invalid.').'
 8353:         </p>
 8354: ');
 8355: 	$r->print(&show_grading_menu_form(&get_symb($r,1)));
 8356: 	return;
 8357:     }
 8358:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
 8359:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
 8360:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
 8361:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
 8362:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
 8363:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
 8364:     $r->print('
 8365:     <p>
 8366: 	'.&mt('[_1]Original[_2] file as uploaded by the scantron office.',
 8367: 	      '<a href="'.$orig.'">','</a>').'
 8368:     </p>
 8369:     <p>
 8370: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
 8371: 	      '<a href="'.$corrected.'">','</a>').'
 8372:     </p>
 8373:     <p>
 8374: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
 8375: 	      '<a href="'.$skipped.'">','</a>').'
 8376:     </p>
 8377: ');
 8378:     $r->print(&show_grading_menu_form(&get_symb($r,1)));
 8379:     return '';
 8380: }
 8381: 
 8382: sub checkscantron_results {
 8383:     my ($r) = @_;
 8384:     my ($symb)=&get_symb($r);
 8385:     if (!$symb) {return '';}
 8386:     my $grading_menu_button=&show_grading_menu_form($symb);
 8387:     my $cid = $env{'request.course.id'};
 8388:     my %lettdig = &letter_to_digits();
 8389:     my $numletts = scalar(keys(%lettdig));
 8390:     my $cnum = $env{'course.'.$cid.'.num'};
 8391:     my $cdom = $env{'course.'.$cid.'.domain'};
 8392:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8393:     my %record;
 8394:     my %scantron_config =
 8395:         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
 8396:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
 8397:     my $classlist=&Apache::loncoursedata::get_classlist();
 8398:     my %idmap=&Apache::grades::username_to_idmap($classlist);
 8399:     my $navmap=Apache::lonnavmaps::navmap->new();
 8400:     unless (ref($navmap)) {
 8401:         $r->print(&navmap_errormsg());
 8402:         return '';
 8403:     }
 8404:     my $map=$navmap->getResourceByUrl($sequence);
 8405:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8406:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
 8407:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,                             \%grader_randomlists_by_symb);
 8408: 
 8409:     my ($uname,$udom);
 8410:     my (%scandata,%lastname,%bylast);
 8411:     $r->print('
 8412: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
 8413: 
 8414:     my @delayqueue;
 8415:     my %completedstudents;
 8416: 
 8417:     my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
 8418:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet/Submissions Comparison Status',
 8419:                                     'Progress of Bubblesheet Data/Submission Records Comparison',$count,
 8420:                                     'inline',undef,'checkscantron');
 8421:     my ($username,$domain,$started);
 8422:     my $nav_error;
 8423:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 8424:     if ($nav_error) {
 8425:         $r->print(&navmap_errormsg());
 8426:         return '';
 8427:     }
 8428: 
 8429:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 8430:                                           'Processing first student');
 8431:     my $start=&Time::HiRes::time();
 8432:     my $i=-1;
 8433: 
 8434:     while ($i<$scanlines->{'count'}) {
 8435:         ($username,$domain,$uname)=('','','');
 8436:         $i++;
 8437:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
 8438:         if ($line=~/^[\s\cz]*$/) { next; }
 8439:         if ($started) {
 8440:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 8441:                                                      'last student');
 8442:         }
 8443:         $started=1;
 8444:         my $scan_record=
 8445:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
 8446:                                                      $scan_data);
 8447:         unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data,
 8448:                                                               \%idmap,$i)) {
 8449:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8450:                                 'Unable to find a student that matches',1);
 8451:             next;
 8452:         }
 8453:         if (exists $completedstudents{$uname}) {
 8454:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8455:                                 'Student '.$uname.' has multiple sheets',2);
 8456:             next;
 8457:         }
 8458:         my $pid = $scan_record->{'scantron.ID'};
 8459:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
 8460:         push(@{$bylast{$lastname{$pid}}},$pid);
 8461:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8462:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8463:         chomp($scandata{$pid});
 8464:         $scandata{$pid} =~ s/\r$//;
 8465:         ($username,$domain)=split(/:/,$uname);
 8466:         my $counter = -1;
 8467:         foreach my $resource (@resources) {
 8468:             my $parts;
 8469:             my $ressymb = $resource->symb();
 8470:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8471:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8472:                 (my $analysis,$parts) =
 8473:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 8474:                                               $username,$domain,undef,
 8475:                                               $bubbles_per_row);
 8476:             } else {
 8477:                 $parts = $grader_partids_by_symb{$ressymb};
 8478:             }
 8479:             ($counter,my $recording) =
 8480:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
 8481:                                          $scandata{$pid},$parts,
 8482:                                          \%scantron_config,\%lettdig,$numletts);
 8483:             $record{$pid} .= $recording;
 8484:         }
 8485:     }
 8486:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8487:     $r->print('<br />');
 8488:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
 8489:     $passed = 0;
 8490:     $failed = 0;
 8491:     $numstudents = 0;
 8492:     foreach my $last (sort(keys(%bylast))) {
 8493:         if (ref($bylast{$last}) eq 'ARRAY') {
 8494:             foreach my $pid (sort(@{$bylast{$last}})) {
 8495:                 my $showscandata = $scandata{$pid};
 8496:                 my $showrecord = $record{$pid};
 8497:                 $showscandata =~ s/\s/&nbsp;/g;
 8498:                 $showrecord =~ s/\s/&nbsp;/g;
 8499:                 if ($scandata{$pid} eq $record{$pid}) {
 8500:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
 8501:                     $okstudents .= '<tr class="'.$css_class.'">'.
 8502: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 8503: '</tr>'."\n".
 8504: '<tr class="'.$css_class.'">'."\n".
 8505: '<td>Submissions</td><td>'.$showrecord.'</td></tr>'."\n";
 8506:                     $passed ++;
 8507:                 } else {
 8508:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
 8509:                     $badstudents .= '<tr class="'.$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".
 8510: '</tr>'."\n".
 8511: '<tr class="'.$css_class.'">'."\n".
 8512: '<td>Submissions</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 8513: '</tr>'."\n";
 8514:                     $failed ++;
 8515:                 }
 8516:                 $numstudents ++;
 8517:             }
 8518:         }
 8519:     }
 8520:     $r->print('<p>'.
 8521:               &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).',
 8522:                   '<b>',
 8523:                   $numstudents,
 8524:                   '</b>',
 8525:                   $env{'form.scantron_maxbubble'}).
 8526:               '</p>'
 8527:     );
 8528:     $r->print('<p>'.&mt('Exact matches for <b>[quant,_1,student]</b>.',$passed).'<br />'.&mt('Discrepancies detected for <b>[quant,_1,student]</b>.',$failed).'</p>');
 8529:     if ($passed) {
 8530:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
 8531:         $r->print(&Apache::loncommon::start_data_table()."\n".
 8532:                  &Apache::loncommon::start_data_table_header_row()."\n".
 8533:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 8534:                  &Apache::loncommon::end_data_table_header_row()."\n".
 8535:                  $okstudents."\n".
 8536:                  &Apache::loncommon::end_data_table().'<br />');
 8537:     }
 8538:     if ($failed) {
 8539:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
 8540:         $r->print(&Apache::loncommon::start_data_table()."\n".
 8541:                  &Apache::loncommon::start_data_table_header_row()."\n".
 8542:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 8543:                  &Apache::loncommon::end_data_table_header_row()."\n".
 8544:                  $badstudents."\n".
 8545:                  &Apache::loncommon::end_data_table()).'<br />'.
 8546:                  &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.');  
 8547:     }
 8548:     $r->print('</form><br />'.$grading_menu_button);
 8549:     return;
 8550: }
 8551: 
 8552: sub verify_scantron_grading {
 8553:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
 8554:         $scantron_config,$lettdig,$numletts) = @_;
 8555:     my ($record,%expected,%startpos);
 8556:     return ($counter,$record) if (!ref($resource));
 8557:     return ($counter,$record) if (!$resource->is_problem());
 8558:     my $symb = $resource->symb();
 8559:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
 8560:     foreach my $part_id (@{$partids}) {
 8561:         $counter ++;
 8562:         $expected{$part_id} = 0;
 8563:         if ($env{"form.scantron.sub_bubblelines.$counter"}) {
 8564:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"});
 8565:             foreach my $item (@sub_lines) {
 8566:                 $expected{$part_id} += $item;
 8567:             }
 8568:         } else {
 8569:             $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"};
 8570:         }
 8571:         $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
 8572:     }
 8573:     if ($symb) {
 8574:         my %recorded;
 8575:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
 8576:         if ($returnhash{'version'}) {
 8577:             my %lasthash=();
 8578:             my $version;
 8579:             for ($version=1;$version<=$returnhash{'version'};$version++) {
 8580:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
 8581:                     $lasthash{$key}=$returnhash{$version.':'.$key};
 8582:                 }
 8583:             }
 8584:             foreach my $key (keys(%lasthash)) {
 8585:                 if ($key =~ /\.scantron$/) {
 8586:                     my $value = &unescape($lasthash{$key});
 8587:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
 8588:                     if ($value eq '') {
 8589:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
 8590:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
 8591:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8592:                             }
 8593:                         }
 8594:                     } else {
 8595:                         my @tocheck;
 8596:                         my @items = split(//,$value);
 8597:                         if (($scantron_config->{'Qon'} eq 'letter') ||
 8598:                             ($scantron_config->{'Qon'} eq 'number')) {
 8599:                             if (@items < $expected{$part_id}) {
 8600:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
 8601:                                 my @singles = split(//,$fragment);
 8602:                                 foreach my $pos (@singles) {
 8603:                                     if ($pos eq ' ') {
 8604:                                         push(@tocheck,$pos);
 8605:                                     } else {
 8606:                                         my $next = shift(@items);
 8607:                                         push(@tocheck,$next);
 8608:                                     }
 8609:                                 }
 8610:                             } else {
 8611:                                 @tocheck = @items;
 8612:                             }
 8613:                             foreach my $letter (@tocheck) {
 8614:                                 if ($scantron_config->{'Qon'} eq 'letter') {
 8615:                                     if ($letter !~ /^[A-J]$/) {
 8616:                                         $letter = $scantron_config->{'Qoff'};
 8617:                                     }
 8618:                                     $recorded{$part_id} .= $letter;
 8619:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
 8620:                                     my $digit;
 8621:                                     if ($letter !~ /^[A-J]$/) {
 8622:                                         $digit = $scantron_config->{'Qoff'};
 8623:                                     } else {
 8624:                                         $digit = $lettdig->{$letter};
 8625:                                     }
 8626:                                     $recorded{$part_id} .= $digit;
 8627:                                 }
 8628:                             }
 8629:                         } else {
 8630:                             @tocheck = @items;
 8631:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
 8632:                                 my $curr_sub = shift(@tocheck);
 8633:                                 my $digit;
 8634:                                 if ($curr_sub =~ /^[A-J]$/) {
 8635:                                     $digit = $lettdig->{$curr_sub}-1;
 8636:                                 }
 8637:                                 if ($curr_sub eq 'J') {
 8638:                                     $digit += scalar($numletts);
 8639:                                 }
 8640:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 8641:                                     if ($j == $digit) {
 8642:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
 8643:                                     } else {
 8644:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8645:                                     }
 8646:                                 }
 8647:                             }
 8648:                         }
 8649:                     }
 8650:                 }
 8651:             }
 8652:         }
 8653:         foreach my $part_id (@{$partids}) {
 8654:             if ($recorded{$part_id} eq '') {
 8655:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
 8656:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 8657:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8658:                     }
 8659:                 }
 8660:             }
 8661:             $record .= $recorded{$part_id};
 8662:         }
 8663:     }
 8664:     return ($counter,$record);
 8665: }
 8666: 
 8667: sub letter_to_digits { 
 8668:     my %lettdig = (
 8669:                     A => 1,
 8670:                     B => 2,
 8671:                     C => 3,
 8672:                     D => 4,
 8673:                     E => 5,
 8674:                     F => 6,
 8675:                     G => 7,
 8676:                     H => 8,
 8677:                     I => 9,
 8678:                     J => 0,
 8679:                   );
 8680:     return %lettdig;
 8681: }
 8682: 
 8683: 
 8684: #-------- end of section for handling grading scantron forms -------
 8685: #
 8686: #-------------------------------------------------------------------
 8687: 
 8688: #-------------------------- Menu interface -------------------------
 8689: #
 8690: #--- Show a Grading Menu button - Calls the next routine ---
 8691: sub show_grading_menu_form {
 8692:     my ($symb)=@_;
 8693:     my $result.='<br /><form action="/adm/grades" method="post">'."\n".
 8694: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8695: 	'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 8696: 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
 8697: 	'<input type="submit" name="submit" value="'.&mt('Grading Menu').'" />'."\n".
 8698: 	'</form>'."\n";
 8699:     return $result;
 8700: }
 8701: 
 8702: # -- Retrieve choices for grading form
 8703: sub savedState {
 8704:     my %savedState = ();
 8705:     if ($env{'form.saveState'}) {
 8706: 	foreach (split(/:/,$env{'form.saveState'})) {
 8707: 	    my ($key,$value) = split(/=/,$_,2);
 8708: 	    $savedState{$key} = $value;
 8709: 	}
 8710:     }
 8711:     return \%savedState;
 8712: }
 8713: 
 8714: sub grading_menu {
 8715:     my ($request) = @_;
 8716:     my ($symb)=&get_symb($request);
 8717:     if (!$symb) {return '';}
 8718:     my $probTitle = &Apache::lonnet::gettitle($symb);
 8719:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 8720: 
 8721:     $request->print($table);
 8722:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
 8723:                   'handgrade'=>$hdgrade,
 8724:                   'probTitle'=>$probTitle,
 8725:                   'command'=>'submit_options',
 8726:                   'saveState'=>"",
 8727:                   'gradingMenu'=>1,
 8728:                   'showgrading'=>"yes");
 8729:     
 8730:     my $url1 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8731:     
 8732:     $fields{'command'} = 'csvform';
 8733:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8734:     
 8735:     $fields{'command'} = 'processclicker';
 8736:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8737:     
 8738:     $fields{'command'} = 'scantron_selectphase';
 8739:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8740:     
 8741:     my @menu = ({	categorytitle=>'Course Grading',
 8742:             items =>[
 8743:                         {	linktext => 'Manual Grading/View Submissions',
 8744:                     		url => $url1,
 8745:                     		permission => 'F',
 8746:                     		icon => 'edit-find-replace.png',
 8747:                     		linktitle => 'Start the process of hand grading submissions.'
 8748:                         },
 8749:                 	    {	linktext => 'Upload Scores',
 8750:                     		url => $url2,
 8751:                     		permission => 'F',
 8752:                     		icon => 'uploadscores.png',
 8753:                     		linktitle => 'Specify a file containing the class scores for current resource.'
 8754:                 	    },
 8755:                 	    {	linktext => 'Process Clicker',
 8756:                     		url => $url3,
 8757:                     		permission => 'F',
 8758:                     		icon => 'addClickerInfoFile.png',
 8759:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
 8760:                 	    },
 8761:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
 8762:                     		url => $url4,
 8763:                     		permission => 'F',
 8764:                     		icon => 'stat.png',
 8765:                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
 8766:                 	    }
 8767:                     ]
 8768:             });
 8769: 
 8770:     #$fields{'command'} = 'verify';
 8771:     #$url = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8772:     #
 8773:     # Create the menu
 8774:     my $Str;
 8775:     # $Str .= '<h2>'.&mt('Please select a grading task').'</h2>';
 8776:     $Str .= '<form method="post" action="" name="gradingMenu">';
 8777:     $Str .= '<input type="hidden" name="command" value="" />'.
 8778:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8779: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 8780: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 8781: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 8782: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 8783: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 8784: 
 8785:     $Str .= Apache::lonhtmlcommon::generate_menu(@menu);
 8786:     #$menudata->{'jscript'}
 8787:     $Str .='<hr /><input type="button" value="'.&mt('Verify Receipt No.').'" '.
 8788:         ' onclick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.
 8789:         ' /> '.
 8790:         &Apache::lonnet::recprefix($env{'request.course.id'}).
 8791:         '-<input type="text" name="receipt" size="4" onchange="javascript:checkReceiptNo(this.form,\'OK\')" />';
 8792: 
 8793:     $Str .="</form>\n";
 8794:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box.");
 8795:     $request->print(<<GRADINGMENUJS);
 8796: <script type="text/javascript" language="javascript">
 8797:     function checkChoice(formname,val,cmdx) {
 8798: 	if (val <= 2) {
 8799: 	    var cmd = radioSelection(formname.radioChoice);
 8800: 	    var cmdsave = cmd;
 8801: 	} else {
 8802: 	    cmd = cmdx;
 8803: 	    cmdsave = 'submission';
 8804: 	}
 8805: 	formname.command.value = cmd;
 8806: 	if (val < 5) formname.submit();
 8807: 	if (val == 5) {
 8808: 	    if (!checkReceiptNo(formname,'notOK')) { 
 8809: 	        return false;
 8810: 	    } else {
 8811: 	        formname.submit();
 8812: 	    }
 8813: 	}
 8814:     }
 8815: 
 8816:     function checkReceiptNo(formname,nospace) {
 8817: 	var receiptNo = formname.receipt.value;
 8818: 	var checkOpt = false;
 8819: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 8820: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 8821: 	if (checkOpt) {
 8822: 	    alert("$receiptalert");
 8823: 	    formname.receipt.value = "";
 8824: 	    formname.receipt.focus();
 8825: 	    return false;
 8826: 	}
 8827: 	return true;
 8828:     }
 8829: </script>
 8830: GRADINGMENUJS
 8831:     &commonJSfunctions($request);
 8832:     return $Str;    
 8833: }
 8834: 
 8835: 
 8836: #--- Displays the submissions first page -------
 8837: sub submit_options {
 8838:     my ($request) = @_;
 8839:     my ($symb)=&get_symb($request);
 8840:     if (!$symb) {return '';}
 8841:     my $probTitle = &Apache::lonnet::gettitle($symb);
 8842: 
 8843:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); 
 8844:     $request->print(<<GRADINGMENUJS);
 8845: <script type="text/javascript" language="javascript">
 8846:     function checkChoice(formname,val,cmdx) {
 8847: 	if (val <= 2) {
 8848: 	    var cmd = radioSelection(formname.radioChoice);
 8849: 	    var cmdsave = cmd;
 8850: 	} else {
 8851: 	    cmd = cmdx;
 8852: 	    cmdsave = 'submission';
 8853: 	}
 8854: 	formname.command.value = cmd;
 8855: 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
 8856: 	    ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
 8857: 	if (val < 5) formname.submit();
 8858: 	if (val == 5) {
 8859: 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
 8860: 	    formname.submit();
 8861: 	}
 8862: 	if (val < 7) formname.submit();
 8863:     }
 8864: 
 8865:     function checkReceiptNo(formname,nospace) {
 8866: 	var receiptNo = formname.receipt.value;
 8867: 	var checkOpt = false;
 8868: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 8869: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 8870: 	if (checkOpt) {
 8871: 	    alert("$receiptalert");
 8872: 	    formname.receipt.value = "";
 8873: 	    formname.receipt.focus();
 8874: 	    return false;
 8875: 	}
 8876: 	return true;
 8877:     }
 8878: </script>
 8879: GRADINGMENUJS
 8880:     &commonJSfunctions($request);
 8881:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 8882:     my $result;
 8883:     my (undef,$sections) = &getclasslist('all','0');
 8884:     my $savedState = &savedState();
 8885:     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
 8886:     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
 8887:     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
 8888:     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
 8889: 
 8890:     # Preselect sections
 8891:     my $selsec="";
 8892:     if (ref($sections)) {
 8893:         foreach my $section (sort(@$sections)) {
 8894:             $selsec.='<option value="'.$section.'" '.
 8895:                 ($saveSec eq $section ? 'selected="selected"':'').'>'.$section.'</option>'."\n";
 8896:         }
 8897:     }
 8898: 
 8899:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 8900: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8901: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 8902: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 8903: 	'<input type="hidden" name="command"     value="" />'."\n".
 8904: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 8905: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 8906: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 8907: 
 8908:     $result.='
 8909: <h2>
 8910:   '.&mt('Grade Current Resource').'
 8911: </h2>
 8912: <div>
 8913:   '.$table.'
 8914: </div>
 8915: 
 8916: <div class="LC_columnSection">
 8917:   
 8918:     <fieldset>
 8919:       <legend>
 8920:        '.&mt('Sections').'
 8921:       </legend>
 8922:       <select name="section" multiple="multiple" size="5">'."\n";
 8923:     $result.= $selsec;
 8924:     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="selected"' : ''). '>all</option></select> &nbsp; ';
 8925:     $result.='
 8926:     </fieldset>
 8927:   
 8928:     <fieldset>
 8929:       <legend>
 8930:         '.&mt('Groups').'
 8931:       </legend>
 8932:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
 8933:     </fieldset>
 8934:   
 8935:     <fieldset>
 8936:       <legend>
 8937:         '.&mt('Access Status').'
 8938:       </legend>
 8939:       '.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,5,undef,'mult').'
 8940:     </fieldset>
 8941:   
 8942:     <fieldset>
 8943:       <legend>
 8944:         '.&mt('Submission Status').'
 8945:       </legend>
 8946:       <select name="submitonly" size="5">
 8947: 	         <option value="yes" '.      ($saveSub eq 'yes'       ? 'selected="selected"' : '').'>'.&mt('with submissions').'</option>
 8948: 	         <option value="queued" '.   ($saveSub eq 'queued'    ? 'selected="selected"' : '').'>'.&mt('in grading queue').'</option>
 8949: 	         <option value="graded" '.   ($saveSub eq 'graded'    ? 'selected="selected"' : '').'>'.&mt('with ungraded submissions').'</option>
 8950: 	         <option value="incorrect" '.($saveSub eq 'incorrect' ? 'selected="selected"' : '').'>'.&mt('with incorrect submissions').'</option>
 8951:                  <option value="all" '.      ($saveSub eq 'all'       ? 'selected="selected"' : '').'>'.&mt('with any status').'</option>
 8952:       </select>
 8953:     </fieldset>
 8954:   
 8955: </div>
 8956: 
 8957: <br />
 8958:           <div>
 8959:             <div>
 8960:               <label>
 8961:                 <input type="radio" name="radioChoice" value="submission" '.
 8962:                   ($saveCmd eq 'submission' ? 'checked="checked"' : '').' /> '.
 8963:              &mt('Select individual students to grade and view submissions.').'
 8964: 	      </label> 
 8965:             </div>
 8966:             <div>
 8967: 	      <label>
 8968:                 <input type="radio" name="radioChoice" value="viewgrades" '.
 8969:                   ($saveCmd eq 'viewgrades' ? 'checked="checked"' : '').' /> '.
 8970:                     &mt('Grade all selected students in a grading table.').'
 8971:               </label>
 8972:             </div>
 8973:             <div>
 8974: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 8975:             </div>
 8976:           </div>
 8977: 
 8978: 
 8979:         <h2>
 8980:          '.&mt('Grade Complete Folder for One Student').'
 8981:         </h2>
 8982:         <div>
 8983:             <div>
 8984:               <label>
 8985:                 <input type="radio" name="radioChoice" value="pickStudentPage" '.
 8986: 	  ($saveCmd eq 'pickStudentPage' ? 'checked="checked"' : '').' /> '.
 8987:   &mt('The <b>complete</b> page/sequence/folder: For one student').'
 8988:               </label>
 8989:             </div>
 8990:             <div>
 8991: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 8992:             </div>
 8993:         </div>
 8994:   </form>';
 8995:     $result .= &show_grading_menu_form($symb);
 8996:     return $result;
 8997: }
 8998: 
 8999: sub reset_perm {
 9000:     undef(%perm);
 9001: }
 9002: 
 9003: sub init_perm {
 9004:     &reset_perm();
 9005:     foreach my $test_perm ('vgr','mgr','opa') {
 9006: 
 9007: 	my $scope = $env{'request.course.id'};
 9008: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
 9009: 
 9010: 	    $scope .= '/'.$env{'request.course.sec'};
 9011: 	    if ( $perm{$test_perm}=
 9012: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
 9013: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
 9014: 	    } else {
 9015: 		delete($perm{$test_perm});
 9016: 	    }
 9017: 	}
 9018:     }
 9019: }
 9020: 
 9021: sub gather_clicker_ids {
 9022:     my %clicker_ids;
 9023: 
 9024:     my $classlist = &Apache::loncoursedata::get_classlist();
 9025: 
 9026:     # Set up a couple variables.
 9027:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
 9028:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
 9029:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
 9030: 
 9031:     foreach my $student (keys(%$classlist)) {
 9032:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
 9033:         my $username = $classlist->{$student}->[$username_idx];
 9034:         my $domain   = $classlist->{$student}->[$domain_idx];
 9035:         my $clickers =
 9036: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 9037:         foreach my $id (split(/\,/,$clickers)) {
 9038:             $id=~s/^[\#0]+//;
 9039:             $id=~s/[\-\:]//g;
 9040:             if (exists($clicker_ids{$id})) {
 9041: 		$clicker_ids{$id}.=','.$username.':'.$domain;
 9042:             } else {
 9043: 		$clicker_ids{$id}=$username.':'.$domain;
 9044:             }
 9045:         }
 9046:     }
 9047:     return %clicker_ids;
 9048: }
 9049: 
 9050: sub gather_adv_clicker_ids {
 9051:     my %clicker_ids;
 9052:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
 9053:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 9054:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 9055:     foreach my $element (sort(keys(%coursepersonnel))) {
 9056:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
 9057:             my ($puname,$pudom)=split(/\:/,$person);
 9058:             my $clickers =
 9059: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
 9060:             foreach my $id (split(/\,/,$clickers)) {
 9061: 		$id=~s/^[\#0]+//;
 9062:                 $id=~s/[\-\:]//g;
 9063: 		if (exists($clicker_ids{$id})) {
 9064: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
 9065: 		} else {
 9066: 		    $clicker_ids{$id}=$puname.':'.$pudom;
 9067: 		}
 9068:             }
 9069:         }
 9070:     }
 9071:     return %clicker_ids;
 9072: }
 9073: 
 9074: sub clicker_grading_parameters {
 9075:     return ('gradingmechanism' => 'scalar',
 9076:             'upfiletype' => 'scalar',
 9077:             'specificid' => 'scalar',
 9078:             'pcorrect' => 'scalar',
 9079:             'pincorrect' => 'scalar');
 9080: }
 9081: 
 9082: sub process_clicker {
 9083:     my ($r)=@_;
 9084:     my ($symb)=&get_symb($r);
 9085:     if (!$symb) {return '';}
 9086:     my $result=&checkforfile_js();
 9087:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 9088:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 9089:     $result.=$table;
 9090:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 9091:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 9092:     $result.='&nbsp;<b>'.&mt('Specify a file containing the clicker information for this resource.').
 9093:         '</b></td></tr>'."\n";
 9094:     $result.='<tr bgcolor="#ffffe6"><td>'."\n";
 9095: # Attempt to restore parameters from last session, set defaults if not present
 9096:     my %Saveable_Parameters=&clicker_grading_parameters();
 9097:     &Apache::loncommon::restore_course_settings('grades_clicker',
 9098:                                                  \%Saveable_Parameters);
 9099:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
 9100:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
 9101:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
 9102:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
 9103: 
 9104:     my %checked;
 9105:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
 9106:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
 9107:           $checked{$gradingmechanism}=' checked="checked"';
 9108:        }
 9109:     }
 9110: 
 9111:     my $upload=&mt("Upload File");
 9112:     my $type=&mt("Type");
 9113:     my $attendance=&mt("Award points just for participation");
 9114:     my $personnel=&mt("Correctness determined from response by course personnel");
 9115:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
 9116:     my $given=&mt("Correctness determined from given list of answers").' '.
 9117:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
 9118:     my $pcorrect=&mt("Percentage points for correct solution");
 9119:     my $pincorrect=&mt("Percentage points for incorrect solution");
 9120:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
 9121:                                                    {'iclicker' => 'i>clicker',
 9122:                                                     'interwrite' => 'interwrite PRS'});
 9123:     $symb = &Apache::lonenc::check_encrypt($symb);
 9124:     $result.=<<ENDUPFORM;
 9125: <script type="text/javascript">
 9126: function sanitycheck() {
 9127: // Accept only integer percentages
 9128:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
 9129:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
 9130: // Find out grading choice
 9131:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9132:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
 9133:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
 9134:       }
 9135:    }
 9136: // By default, new choice equals user selection
 9137:    newgradingchoice=gradingchoice;
 9138: // Not good to give more points for false answers than correct ones
 9139:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
 9140:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
 9141:    }
 9142: // If new choice is attendance only, and old choice was correctness-based, restore defaults
 9143:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
 9144:       document.forms.gradesupload.pcorrect.value=100;
 9145:       document.forms.gradesupload.pincorrect.value=100;
 9146:    }
 9147: // If the values are different, cannot be attendance only
 9148:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
 9149:        (gradingchoice=='attendance')) {
 9150:        newgradingchoice='personnel';
 9151:    }
 9152: // Change grading choice to new one
 9153:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9154:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
 9155:          document.forms.gradesupload.gradingmechanism[i].checked=true;
 9156:       } else {
 9157:          document.forms.gradesupload.gradingmechanism[i].checked=false;
 9158:       }
 9159:    }
 9160: // Remember the old state
 9161:    document.forms.gradesupload.waschecked.value=newgradingchoice;
 9162: }
 9163: </script>
 9164: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 9165: <input type="hidden" name="symb" value="$symb" />
 9166: <input type="hidden" name="command" value="processclickerfile" />
 9167: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 9168: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 9169: <input type="file" name="upfile" size="50" />
 9170: <br /><label>$type: $selectform</label>
 9171: <br /><label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
 9172: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
 9173: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
 9174: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
 9175: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
 9176: <br />&nbsp;&nbsp;&nbsp;
 9177: <input type="text" name="givenanswer" size="50" />
 9178: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
 9179: <br /><label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
 9180: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
 9181: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 9182: </form>
 9183: ENDUPFORM
 9184:     $result.='</td></tr></table>'."\n".
 9185:              '</td></tr></table><br /><br />'."\n";
 9186:     $result.=&show_grading_menu_form($symb);
 9187:     return $result;
 9188: }
 9189: 
 9190: sub process_clicker_file {
 9191:     my ($r)=@_;
 9192:     my ($symb)=&get_symb($r);
 9193:     if (!$symb) {return '';}
 9194: 
 9195:     my %Saveable_Parameters=&clicker_grading_parameters();
 9196:     &Apache::loncommon::store_course_settings('grades_clicker',
 9197:                                               \%Saveable_Parameters);
 9198: 
 9199:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 9200:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
 9201: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
 9202: 	return $result.&show_grading_menu_form($symb);
 9203:     }
 9204:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
 9205:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
 9206:         return $result.&show_grading_menu_form($symb);
 9207:     }
 9208:     my $foundgiven=0;
 9209:     if ($env{'form.gradingmechanism'} eq 'given') {
 9210:         $env{'form.givenanswer'}=~s/^\s*//gs;
 9211:         $env{'form.givenanswer'}=~s/\s*$//gs;
 9212:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
 9213:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
 9214:         my @answers=split(/\,/,$env{'form.givenanswer'});
 9215:         $foundgiven=$#answers+1;
 9216:     }
 9217:     my %clicker_ids=&gather_clicker_ids();
 9218:     my %correct_ids;
 9219:     if ($env{'form.gradingmechanism'} eq 'personnel') {
 9220: 	%correct_ids=&gather_adv_clicker_ids();
 9221:     }
 9222:     if ($env{'form.gradingmechanism'} eq 'specific') {
 9223: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
 9224: 	   $correct_id=~tr/a-z/A-Z/;
 9225: 	   $correct_id=~s/\s//gs;
 9226: 	   $correct_id=~s/^[\#0]+//;
 9227:            $correct_id=~s/[\-\:]//g;
 9228:            if ($correct_id) {
 9229: 	      $correct_ids{$correct_id}='specified';
 9230:            }
 9231:         }
 9232:     }
 9233:     if ($env{'form.gradingmechanism'} eq 'attendance') {
 9234: 	$result.=&mt('Score based on attendance only');
 9235:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
 9236:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
 9237:     } else {
 9238: 	my $number=0;
 9239: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
 9240: 	foreach my $id (sort(keys(%correct_ids))) {
 9241: 	    $result.='<br /><tt>'.$id.'</tt> - ';
 9242: 	    if ($correct_ids{$id} eq 'specified') {
 9243: 		$result.=&mt('specified');
 9244: 	    } else {
 9245: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
 9246: 		$result.=&Apache::loncommon::plainname($uname,$udom);
 9247: 	    }
 9248: 	    $number++;
 9249: 	}
 9250:         $result.="</p>\n";
 9251: 	if ($number==0) {
 9252: 	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
 9253: 	    return $result.&show_grading_menu_form($symb);
 9254: 	}
 9255:     }
 9256:     if (length($env{'form.upfile'}) < 2) {
 9257:         $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
 9258: 		     '<span class="LC_error">',
 9259: 		     '</span>',
 9260: 		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
 9261:         return $result.&show_grading_menu_form($symb);
 9262:     }
 9263: 
 9264: # Were able to get all the info needed, now analyze the file
 9265: 
 9266:     $result.=&Apache::loncommon::studentbrowser_javascript();
 9267:     $symb = &Apache::lonenc::check_encrypt($symb);
 9268:     my $heading=&mt('Scanning clicker file');
 9269:     $result.=(<<ENDHEADER);
 9270: <br /><table width="100%" border="0"><tr><td bgcolor="#777777">
 9271: <table width="100%" border="0"><tr bgcolor="#e6ffff"><td>
 9272: <b>$heading</b></td></tr><tr bgcolor="#ffffe6"><td>
 9273: <form method="post" action="/adm/grades" name="clickeranalysis">
 9274: <input type="hidden" name="symb" value="$symb" />
 9275: <input type="hidden" name="command" value="assignclickergrades" />
 9276: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 9277: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 9278: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
 9279: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
 9280: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
 9281: ENDHEADER
 9282:     if ($env{'form.gradingmechanism'} eq 'given') {
 9283:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
 9284:     } 
 9285:     my %responses;
 9286:     my @questiontitles;
 9287:     my $errormsg='';
 9288:     my $number=0;
 9289:     if ($env{'form.upfiletype'} eq 'iclicker') {
 9290: 	($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
 9291:     }
 9292:     if ($env{'form.upfiletype'} eq 'interwrite') {
 9293:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
 9294:     }
 9295:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
 9296:              '<input type="hidden" name="number" value="'.$number.'" />'.
 9297:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
 9298:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
 9299:              '<br />';
 9300:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
 9301:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
 9302:        return $result.&show_grading_menu_form($symb);
 9303:     } 
 9304: # Remember Question Titles
 9305: # FIXME: Possibly need delimiter other than ":"
 9306:     for (my $i=0;$i<$number;$i++) {
 9307:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
 9308:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
 9309:     }
 9310:     my $correct_count=0;
 9311:     my $student_count=0;
 9312:     my $unknown_count=0;
 9313: # Match answers with usernames
 9314: # FIXME: Possibly need delimiter other than ":"
 9315:     foreach my $id (keys(%responses)) {
 9316:        if ($correct_ids{$id}) {
 9317:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
 9318:           $correct_count++;
 9319:        } elsif ($clicker_ids{$id}) {
 9320:           if ($clicker_ids{$id}=~/\,/) {
 9321: # More than one user with the same clicker!
 9322:              $result.="\n<hr />".&mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
 9323:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9324:                            "<select name='multi".$id."'>";
 9325:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
 9326:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
 9327:              }
 9328:              $result.='</select>';
 9329:              $unknown_count++;
 9330:           } else {
 9331: # Good: found one and only one user with the right clicker
 9332:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
 9333:              $student_count++;
 9334:           }
 9335:        } else {
 9336:           $result.="\n<hr />".&mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
 9337:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9338:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
 9339:                    "\n".&mt("Domain").": ".
 9340:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
 9341:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
 9342:           $unknown_count++;
 9343:        }
 9344:     }
 9345:     $result.='<hr />'.
 9346:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
 9347:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
 9348:        if ($correct_count==0) {
 9349:           $errormsg.="Found no correct answers answers for grading!";
 9350:        } elsif ($correct_count>1) {
 9351:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
 9352:        }
 9353:     }
 9354:     if ($number<1) {
 9355:        $errormsg.="Found no questions.";
 9356:     }
 9357:     if ($errormsg) {
 9358:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
 9359:     } else {
 9360:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
 9361:     }
 9362:     $result.='</form></td></tr></table>'."\n".
 9363:              '</td></tr></table><br /><br />'."\n";
 9364:     return $result.&show_grading_menu_form($symb);
 9365: }
 9366: 
 9367: sub iclicker_eval {
 9368:     my ($questiontitles,$responses)=@_;
 9369:     my $number=0;
 9370:     my $errormsg='';
 9371:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9372:         my %components=&Apache::loncommon::record_sep($line);
 9373:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9374: 	if ($entries[0] eq 'Question') {
 9375: 	    for (my $i=3;$i<$#entries;$i+=6) {
 9376: 		$$questiontitles[$number]=$entries[$i];
 9377: 		$number++;
 9378: 	    }
 9379: 	}
 9380: 	if ($entries[0]=~/^\#/) {
 9381: 	    my $id=$entries[0];
 9382: 	    my @idresponses;
 9383: 	    $id=~s/^[\#0]+//;
 9384: 	    for (my $i=0;$i<$number;$i++) {
 9385: 		my $idx=3+$i*6;
 9386:                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
 9387: 		push(@idresponses,$entries[$idx]);
 9388: 	    }
 9389: 	    $$responses{$id}=join(',',@idresponses);
 9390: 	}
 9391:     }
 9392:     return ($errormsg,$number);
 9393: }
 9394: 
 9395: sub interwrite_eval {
 9396:     my ($questiontitles,$responses)=@_;
 9397:     my $number=0;
 9398:     my $errormsg='';
 9399:     my $skipline=1;
 9400:     my $questionnumber=0;
 9401:     my %idresponses=();
 9402:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9403:         my %components=&Apache::loncommon::record_sep($line);
 9404:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9405:         if ($entries[1] eq 'Time') { $skipline=0; next; }
 9406:         if ($entries[1] eq 'Response') { $skipline=1; }
 9407:         next if $skipline;
 9408:         if ($entries[0]!=$questionnumber) {
 9409:            $questionnumber=$entries[0];
 9410:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
 9411:            $number++;
 9412:         }
 9413:         my $id=$entries[4];
 9414:         $id=~s/^[\#0]+//;
 9415:         $id=~s/^v\d*\://i;
 9416:         $id=~s/[\-\:]//g;
 9417:         $idresponses{$id}[$number]=$entries[6];
 9418:     }
 9419:     foreach my $id (keys(%idresponses)) {
 9420:        $$responses{$id}=join(',',@{$idresponses{$id}});
 9421:        $$responses{$id}=~s/^\s*\,//;
 9422:     }
 9423:     return ($errormsg,$number);
 9424: }
 9425: 
 9426: sub assign_clicker_grades {
 9427:     my ($r)=@_;
 9428:     my ($symb)=&get_symb($r);
 9429:     if (!$symb) {return '';}
 9430: # See which part we are saving to
 9431:     my $res_error;
 9432:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 9433:     if ($res_error) {
 9434:         return &navmap_errormsg();
 9435:     }
 9436: # FIXME: This should probably look for the first handgradeable part
 9437:     my $part=$$partlist[0];
 9438: # Start screen output
 9439:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 9440: 
 9441:     $result .= '<br />'.
 9442:                &Apache::loncommon::start_data_table().
 9443:                &Apache::loncommon::start_data_table_header_row().
 9444:                '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
 9445:                &Apache::loncommon::end_data_table_header_row().
 9446:                &Apache::loncommon::start_data_table_row().'<td>';
 9447: 
 9448: # Get correct result
 9449: # FIXME: Possibly need delimiter other than ":"
 9450:     my @correct=();
 9451:     my $gradingmechanism=$env{'form.gradingmechanism'};
 9452:     my $number=$env{'form.number'};
 9453:     if ($gradingmechanism ne 'attendance') {
 9454:        foreach my $key (keys(%env)) {
 9455:           if ($key=~/^form\.correct\:/) {
 9456:              my @input=split(/\,/,$env{$key});
 9457:              for (my $i=0;$i<=$#input;$i++) {
 9458:                  if (($correct[$i]) && ($input[$i]) &&
 9459:                      ($correct[$i] ne $input[$i])) {
 9460:                     $result.='<br /><span class="LC_warning">'.
 9461:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
 9462:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
 9463:                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
 9464:                     $correct[$i]=$input[$i];
 9465:                  }
 9466:              }
 9467:           }
 9468:        }
 9469:        for (my $i=0;$i<$number;$i++) {
 9470:           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
 9471:              $result.='<br /><span class="LC_error">'.
 9472:                       &mt('No correct result given for question "[_1]"!',
 9473:                           $env{'form.question:'.$i}).'</span>';
 9474:           }
 9475:        }
 9476:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
 9477:     }
 9478: # Start grading
 9479:     my $pcorrect=$env{'form.pcorrect'};
 9480:     my $pincorrect=$env{'form.pincorrect'};
 9481:     my $storecount=0;
 9482:     my %users=();
 9483:     foreach my $key (keys(%env)) {
 9484:        my $user='';
 9485:        if ($key=~/^form\.student\:(.*)$/) {
 9486:           $user=$1;
 9487:        }
 9488:        if ($key=~/^form\.unknown\:(.*)$/) {
 9489:           my $id=$1;
 9490:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
 9491:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
 9492:           } elsif ($env{'form.multi'.$id}) {
 9493:              $user=$env{'form.multi'.$id};
 9494:           }
 9495:        }
 9496:        if ($user) {
 9497:           if ($users{$user}) {
 9498:              $result.='<br /><span class="LC_warning">'.
 9499:                       &mt("More than one entry found for <tt>[_1]</tt>!",$user).
 9500:                       '</span><br />';
 9501:           }
 9502:           $users{$user}=1;
 9503:           my @answer=split(/\,/,$env{$key});
 9504:           my $sum=0;
 9505:           my $realnumber=$number;
 9506:           for (my $i=0;$i<$number;$i++) {
 9507:              if  ($correct[$i] eq '-') {
 9508:                 $realnumber--;
 9509:              } elsif ($answer[$i]) {
 9510:                 if ($gradingmechanism eq 'attendance') {
 9511:                    $sum+=$pcorrect;
 9512:                 } elsif ($correct[$i] eq '*') {
 9513:                    $sum+=$pcorrect;
 9514:                 } else {
 9515: # We actually grade if correct or not
 9516:                    my $increment=$pincorrect;
 9517: # Special case: numerical answer "0"
 9518:                    if ($correct[$i] eq '0') {
 9519:                       if ($answer[$i]=~/^[0\.]+$/) {
 9520:                          $increment=$pcorrect;
 9521:                       }
 9522: # General numerical answer, both evaluate to something non-zero
 9523:                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
 9524:                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
 9525:                          $increment=$pcorrect;
 9526:                       }
 9527: # Must be just alphanumeric
 9528:                    } elsif ($answer[$i] eq $correct[$i]) {
 9529:                       $increment=$pcorrect;
 9530:                    }
 9531:                    $sum+=$increment;
 9532:                 }
 9533:              }
 9534:           }
 9535:           my $ave=$sum/(100*$realnumber);
 9536: # Store
 9537:           my ($username,$domain)=split(/\:/,$user);
 9538:           my %grades=();
 9539:           $grades{"resource.$part.solved"}='correct_by_override';
 9540:           $grades{"resource.$part.awarded"}=$ave;
 9541:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 9542:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
 9543:                                                  $env{'request.course.id'},
 9544:                                                  $domain,$username);
 9545:           if ($returncode ne 'ok') {
 9546:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
 9547:           } else {
 9548:              $storecount++;
 9549:           }
 9550:        }
 9551:     }
 9552: # We are done
 9553:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
 9554:              '</td>'.
 9555:              &Apache::loncommon::end_data_table_row().
 9556:              &Apache::loncommon::end_data_table()."<br /><br />\n";
 9557:     return $result.&show_grading_menu_form($symb);
 9558: }
 9559: 
 9560: sub navmap_errormsg {
 9561:     return '<div class="LC_error">'.
 9562:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
 9563:            &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>').
 9564:            '</div>';
 9565: }
 9566: 
 9567: sub handler {
 9568:     my $request=$_[0];
 9569:     &reset_caches();
 9570:     if ($request->header_only) {
 9571:         &Apache::loncommon::content_type($request,'text/html');
 9572:         $request->send_http_header;
 9573:         return OK;
 9574:     }
 9575:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 9576: 
 9577:     my $symb=&get_symb($request,1);
 9578:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
 9579:     my $command=$commands[0];
 9580: 
 9581:     if ($#commands > 0) {
 9582: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
 9583:     }
 9584: 
 9585:     $ssi_error = 0;
 9586:     my $brcrum = [{href=>"/adm/grades",text=>"Grading"}];
 9587:     my $start_page = &Apache::loncommon::start_page('Grading',undef,
 9588:                                           {'bread_crumbs' => $brcrum});
 9589:     if ($symb eq '' && $command eq '') {
 9590: 	if ($env{'user.adv'}) {
 9591:             &Apache::loncommon::content_type($request,'text/html');
 9592:             $request->send_http_header;
 9593:             $request->print($start_page);
 9594: 	    if (($env{'form.codeone'}) && ($env{'form.codetwo'}) &&
 9595: 		($env{'form.codethree'})) {
 9596: 		my $token=$env{'form.codeone'}.'*'.$env{'form.codetwo'}.'*'.
 9597: 		    $env{'form.codethree'};
 9598: 		my ($tsymb,$tuname,$tudom,$tcrsid)=
 9599: 		    &Apache::lonnet::checkin($token);
 9600: 		if ($tsymb) {
 9601: 		    my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
 9602: 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
 9603: 			$request->print(&ssi_with_retries('/res/'.$url, $ssi_retries,
 9604: 					  ('grade_username' => $tuname,
 9605: 					   'grade_domain' => $tudom,
 9606: 					   'grade_courseid' => $tcrsid,
 9607: 					   'grade_symb' => $tsymb)));
 9608: 		    } else {
 9609: 			$request->print('<h3>Not authorized: '.$token.'</h3>');
 9610: 		    }
 9611: 		} else {
 9612: 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
 9613: 		}
 9614: 	    } else {
 9615: 		$request->print(&Apache::lonxml::tokeninputfield());
 9616: 	    }
 9617:         } elsif ($env{'request.course.id'}) {
 9618:             &init_perm(); 
 9619:             if (!%perm) {
 9620:                 $request->internal_redirect('/adm/quickgrades');
 9621:             } else {
 9622:                 &Apache::loncommon::content_type($request,'text/html');
 9623:                 $request->send_http_header;
 9624:                 $request->print($start_page);
 9625:             }
 9626:         }
 9627:     } else {
 9628:         &init_perm();
 9629:         if (!$env{'request.course.id'}) {
 9630:             unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
 9631:                     ($command =~ /^scantronupload/)) {
 9632:                 # Not in a course.
 9633:                 $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
 9634:                 return HTTP_NOT_ACCEPTABLE;
 9635:             }
 9636:         } elsif (!%perm) {
 9637:             $request->internal_redirect('/adm/quickgrades');
 9638:         }
 9639:         &Apache::loncommon::content_type($request,'text/html');
 9640:         $request->send_http_header;
 9641:         $request->print($start_page);
 9642: 	if ($command eq 'submission' && $perm{'vgr'}) {
 9643: 	    ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
 9644: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
 9645: 	    &pickStudentPage($request);
 9646: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
 9647: 	    &displayPage($request);
 9648: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
 9649: 	    &updateGradeByPage($request);
 9650: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
 9651: 	    &processGroup($request);
 9652: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
 9653: 	    $request->print(&grading_menu($request));
 9654: 	} elsif ($command eq 'submit_options' && $perm{'vgr'}) {
 9655: 	    $request->print(&submit_options($request));
 9656: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
 9657: 	    $request->print(&viewgrades($request));
 9658: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
 9659: 	    $request->print(&processHandGrade($request));
 9660: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
 9661: 	    $request->print(&editgrades($request));
 9662: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
 9663: 	    $request->print(&verifyreceipt($request));
 9664:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
 9665:             $request->print(&process_clicker($request));
 9666:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
 9667:             $request->print(&process_clicker_file($request));
 9668:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
 9669:             $request->print(&assign_clicker_grades($request));
 9670: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
 9671: 	    $request->print(&upcsvScores_form($request));
 9672: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
 9673: 	    $request->print(&csvupload($request));
 9674: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
 9675: 	    $request->print(&csvuploadmap($request));
 9676: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
 9677: 	    if ($env{'form.associate'} ne 'Reverse Association') {
 9678: 		$request->print(&csvuploadoptions($request));
 9679: 	    } else {
 9680: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
 9681: 		    $env{'form.upfile_associate'} = 'reverse';
 9682: 		} else {
 9683: 		    $env{'form.upfile_associate'} = 'forward';
 9684: 		}
 9685: 		$request->print(&csvuploadmap($request));
 9686: 	    }
 9687: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
 9688: 	    $request->print(&csvuploadassign($request));
 9689: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
 9690: 	    $request->print(&scantron_selectphase($request));
 9691:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
 9692:  	    $request->print(&scantron_do_warning($request));
 9693: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
 9694: 	    $request->print(&scantron_validate_file($request));
 9695: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
 9696: 	    $request->print(&scantron_process_students($request));
 9697:  	} elsif ($command eq 'scantronupload' && 
 9698:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
 9699: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
 9700:  	    $request->print(&scantron_upload_scantron_data($request)); 
 9701:  	} elsif ($command eq 'scantronupload_save' &&
 9702:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
 9703: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
 9704:  	    $request->print(&scantron_upload_scantron_data_save($request));
 9705:  	} elsif ($command eq 'scantron_download' &&
 9706: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 9707:  	    $request->print(&scantron_download_scantron_data($request));
 9708:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
 9709:             $request->print(&checkscantron_results($request));     
 9710: 	} elsif ($command) {
 9711: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
 9712: 	}
 9713:     }
 9714:     if ($ssi_error) {
 9715: 	&ssi_print_error($request);
 9716:     }
 9717:     $request->print(&Apache::loncommon::end_page());
 9718:     &reset_caches();
 9719:     return OK;
 9720: }
 9721: 
 9722: 1;
 9723: 
 9724: __END__;
 9725: 
 9726: 
 9727: =head1 NAME
 9728: 
 9729: Apache::grades
 9730: 
 9731: =head1 SYNOPSIS
 9732: 
 9733: Handles the viewing of grades.
 9734: 
 9735: This is part of the LearningOnline Network with CAPA project
 9736: described at http://www.lon-capa.org.
 9737: 
 9738: =head1 OVERVIEW
 9739: 
 9740: Do an ssi with retries:
 9741: While I'd love to factor out this with the vesrion in lonprintout,
 9742: 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
 9743: I'm not quite ready to invent (e.g. an ssi_with_retry object).
 9744: 
 9745: At least the logic that drives this has been pulled out into loncommon.
 9746: 
 9747: 
 9748: 
 9749: ssi_with_retries - Does the server side include of a resource.
 9750:                      if the ssi call returns an error we'll retry it up to
 9751:                      the number of times requested by the caller.
 9752:                      If we still have a proble, no text is appended to the
 9753:                      output and we set some global variables.
 9754:                      to indicate to the caller an SSI error occurred.  
 9755:                      All of this is supposed to deal with the issues described
 9756:                      in LonCAPA BZ 5631 see:
 9757:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
 9758:                      by informing the user that this happened.
 9759: 
 9760: Parameters:
 9761:   resource   - The resource to include.  This is passed directly, without
 9762:                interpretation to lonnet::ssi.
 9763:   form       - The form hash parameters that guide the interpretation of the resource
 9764:                
 9765:   retries    - Number of retries allowed before giving up completely.
 9766: Returns:
 9767:   On success, returns the rendered resource identified by the resource parameter.
 9768: Side Effects:
 9769:   The following global variables can be set:
 9770:    ssi_error                - If an unrecoverable error occurred this becomes true.
 9771:                               It is up to the caller to initialize this to false
 9772:                               if desired.
 9773:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
 9774:                               of the resource that could not be rendered by the ssi
 9775:                               call.
 9776:    ssi_error_message   - The error string fetched from the ssi response
 9777:                               in the event of an error.
 9778: 
 9779: 
 9780: =head1 HANDLER SUBROUTINE
 9781: 
 9782: ssi_with_retries()
 9783: 
 9784: =head1 SUBROUTINES
 9785: 
 9786: =over
 9787: 
 9788: =item scantron_get_correction() : 
 9789: 
 9790:    Builds the interface screen to interact with the operator to fix a
 9791:    specific error condition in a specific scanline
 9792: 
 9793:  Arguments:
 9794:     $r           - Apache request object
 9795:     $i           - number of the current scanline
 9796:     $scan_record - hash ref as returned from &scantron_parse_scanline()
 9797:     $scan_config - hash ref as returned from &get_scantron_config()
 9798:     $line        - full contents of the current scanline
 9799:     $error       - error condition, valid values are
 9800:                    'incorrectCODE', 'duplicateCODE',
 9801:                    'doublebubble', 'missingbubble',
 9802:                    'duplicateID', 'incorrectID'
 9803:     $arg         - extra information needed
 9804:        For errors:
 9805:          - duplicateID   - paper number that this studentID was seen before on
 9806:          - duplicateCODE - array ref of the paper numbers this CODE was
 9807:                            seen on before
 9808:          - incorrectCODE - current incorrect CODE 
 9809:          - doublebubble  - array ref of the bubble lines that have double
 9810:                            bubble errors
 9811:          - missingbubble - array ref of the bubble lines that have missing
 9812:                            bubble errors
 9813: 
 9814: =item  scantron_get_maxbubble() : 
 9815: 
 9816:    Arguments:
 9817:        $nav_error  - Reference to scalar which is a flag to indicate a
 9818:                       failure to retrieve a navmap object.
 9819:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
 9820:        calling routine should trap the error condition and display the warning
 9821:        found in &navmap_errormsg().
 9822: 
 9823:        $scantron_config - Reference to bubblesheet format configuration hash.
 9824: 
 9825:    Returns the maximum number of bubble lines that are expected to
 9826:    occur. Does this by walking the selected sequence rendering the
 9827:    resource and then checking &Apache::lonxml::get_problem_counter()
 9828:    for what the current value of the problem counter is.
 9829: 
 9830:    Caches the results to $env{'form.scantron_maxbubble'},
 9831:    $env{'form.scantron.bubble_lines.n'}, 
 9832:    $env{'form.scantron.first_bubble_line.n'} and
 9833:    $env{"form.scantron.sub_bubblelines.n"}
 9834:    which are the total number of bubble, lines, the number of bubble
 9835:    lines for response n and number of the first bubble line for response n,
 9836:    and a comma separated list of numbers of bubble lines for sub-questions
 9837:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
 9838: 
 9839: 
 9840: =item  scantron_validate_missingbubbles() : 
 9841: 
 9842:    Validates all scanlines in the selected file to not have any
 9843:     answers that don't have bubbles that have not been verified
 9844:     to be bubble free.
 9845: 
 9846: =item  scantron_process_students() : 
 9847: 
 9848:    Routine that does the actual grading of the bubblesheet information.
 9849: 
 9850:    The parsed scanline hash is added to %env 
 9851: 
 9852:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
 9853:    foreach resource , with the form data of
 9854: 
 9855: 	'submitted'     =>'scantron' 
 9856: 	'grade_target'  =>'grade',
 9857: 	'grade_username'=> username of student
 9858: 	'grade_domain'  => domain of student
 9859: 	'grade_courseid'=> of course
 9860: 	'grade_symb'    => symb of resource to grade
 9861: 
 9862:     This triggers a grading pass. The problem grading code takes care
 9863:     of converting the bubbled letter information (now in %env) into a
 9864:     valid submission.
 9865: 
 9866: =item  scantron_upload_scantron_data() :
 9867: 
 9868:     Creates the screen for adding a new bubblesheet data file to a course.
 9869: 
 9870: =item  scantron_upload_scantron_data_save() : 
 9871: 
 9872:    Adds a provided bubble information data file to the course if user
 9873:    has the correct privileges to do so. 
 9874: 
 9875: =item  valid_file() :
 9876: 
 9877:    Validates that the requested bubble data file exists in the course.
 9878: 
 9879: =item  scantron_download_scantron_data() : 
 9880: 
 9881:    Shows a list of the three internal files (original, corrected,
 9882:    skipped) for a specific bubblesheet data file that exists in the
 9883:    course.
 9884: 
 9885: =item  scantron_validate_ID() : 
 9886: 
 9887:    Validates all scanlines in the selected file to not have any
 9888:    invalid or underspecified student/employee IDs
 9889: 
 9890: =item navmap_errormsg() :
 9891: 
 9892:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
 9893:    Should be called whenever the request to instantiate a navmap object fails.  
 9894: 
 9895: =back
 9896: 
 9897: =cut

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