File:  [LON-CAPA] / loncom / homework / grades.pm
Revision 1.592: download - view: text, annotated - select for diffs
Fri Feb 5 14:52:28 2010 UTC (14 years, 3 months ago) by bisitz
Branches: MAIN
CVS tags: HEAD
Optimized manual grading screen layout:
- Optimized floating of items in submission details option list
- Moved additonal functions (Activity, Change Parameters) directly below corresponding student's name; optimized spacing
- Each student has HTML headline now
- Moved alternating colors from student's name background to left side border
- No additional border needed for each student; adjusted margins and padding
- Better separate footer from rest
- Adding warning style to "...do not save the scores" message
- Added missing &mt() call
- Removed now unused styles (including changes in grades.pm 1.588 and grades.pm 1.590)

    1: # The LearningOnline Network with CAPA
    2: # The LON-CAPA Grading handler
    3: #
    4: # $Id: grades.pm,v 1.592 2010/02/05 14:52:28 bisitz 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);
   44: use Apache::lonlocal;
   45: use Apache::lonenc;
   46: use String::Similarity;
   47: use LONCAPA;
   48: 
   49: use POSIX qw(floor);
   50: 
   51: 
   52: 
   53: my %perm=();
   54: 
   55: #  These variables are used to recover from ssi errors
   56: 
   57: my $ssi_retries = 5;
   58: my $ssi_error;
   59: my $ssi_error_resource;
   60: my $ssi_error_message;
   61: 
   62: 
   63: sub ssi_with_retries {
   64:     my ($resource, $retries, %form) = @_;
   65:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
   66:     if ($response->is_error) {
   67: 	$ssi_error          = 1;
   68: 	$ssi_error_resource = $resource;
   69: 	$ssi_error_message  = $response->code . " " . $response->message;
   70:     }
   71: 
   72:     return $content;
   73: 
   74: }
   75: #
   76: #  Prodcuces an ssi retry failure error message to the user:
   77: #
   78: 
   79: sub ssi_print_error {
   80:     my ($r) = @_;
   81:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
   82:     $r->print('
   83: <br />
   84: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   85: <p>
   86: '.&mt('Unable to retrieve a resource from a server:').'<br />
   87: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   88: '.&mt('Error:').' '.$ssi_error_message.'
   89: </p>
   90: <p>'.
   91: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   92: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   93: '</p>');
   94:     return;
   95: }
   96: 
   97: #
   98: # --- Retrieve the parts from the metadata file.---
   99: sub getpartlist {
  100:     my ($symb,$errorref) = @_;
  101: 
  102:     my $navmap   = Apache::lonnavmaps::navmap->new();
  103:     unless (ref($navmap)) {
  104:         if (ref($errorref)) { 
  105:             $$errorref = 'navmap';
  106:             return;
  107:         }
  108:     }
  109:     my $res      = $navmap->getBySymb($symb);
  110:     my $partlist = $res->parts();
  111:     my $url      = $res->src();
  112:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
  113: 
  114:     my @stores;
  115:     foreach my $part (@{ $partlist }) {
  116: 	foreach my $key (@metakeys) {
  117: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
  118: 	}
  119:     }
  120:     return @stores;
  121: }
  122: 
  123: # --- Get the symbolic name of a problem and the url
  124: sub get_symb {
  125:     my ($request,$silent) = @_;
  126:     (my $url=$env{'form.url'}) =~ s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
  127:     my $symb=($env{'form.symb'} ne '' ? $env{'form.symb'} : (&Apache::lonnet::symbread($url)));
  128:     if ($symb eq '') { 
  129: 	if (!$silent) {
  130: 	    $request->print("Unable to handle ambiguous references:$url:.");
  131: 	    return ();
  132: 	}
  133:     }
  134:     &Apache::lonenc::check_decrypt(\$symb);
  135:     return ($symb);
  136: }
  137: 
  138: #--- Format fullname, username:domain if different for display
  139: #--- Use anywhere where the student names are listed
  140: sub nameUserString {
  141:     my ($type,$fullname,$uname,$udom) = @_;
  142:     if ($type eq 'header') {
  143: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
  144:     } else {
  145: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
  146: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
  147:     }
  148: }
  149: 
  150: #--- Get the partlist and the response type for a given problem. ---
  151: #--- Indicate if a response type is coded handgraded or not. ---
  152: sub response_type {
  153:     my ($symb,$response_error) = @_;
  154: 
  155:     my $navmap = Apache::lonnavmaps::navmap->new();
  156:     unless (ref($navmap)) {
  157:         if (ref($response_error)) {
  158:             $$response_error = 1;
  159:         }
  160:         return;
  161:     }
  162:     my $res = $navmap->getBySymb($symb);
  163:     my $partlist = $res->parts();
  164:     my %vPart = 
  165: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
  166:     my (%response_types,%handgrade);
  167:     foreach my $part (@{ $partlist }) {
  168: 	next if (%vPart && !exists($vPart{$part}));
  169: 
  170: 	my @types = $res->responseType($part);
  171: 	my @ids = $res->responseIds($part);
  172: 	for (my $i=0; $i < scalar(@ids); $i++) {
  173: 	    $response_types{$part}{$ids[$i]} = $types[$i];
  174: 	    $handgrade{$part.'_'.$ids[$i]} = 
  175: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
  176: 				     '.handgrade',$symb);
  177: 	}
  178:     }
  179:     return ($partlist,\%handgrade,\%response_types);
  180: }
  181: 
  182: sub flatten_responseType {
  183:     my ($responseType) = @_;
  184:     my @part_response_id =
  185: 	map { 
  186: 	    my $part = $_;
  187: 	    map {
  188: 		[$part,$_]
  189: 		} sort(keys(%{ $responseType->{$part} }));
  190: 	} sort(keys(%$responseType));
  191:     return @part_response_id;
  192: }
  193: 
  194: sub get_display_part {
  195:     my ($partID,$symb)=@_;
  196:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
  197:     if (defined($display) and $display ne '') {
  198:         $display.= ' (<span class="LC_internal_info">'
  199:                   .&mt('Part ID: [_1]',$partID).'</span>)';
  200:     } else {
  201: 	$display=$partID;
  202:     }
  203:     return $display;
  204: }
  205: 
  206: #--- Show resource title
  207: #--- and parts and response type
  208: sub showResourceInfo {
  209:     my ($symb,$probTitle,$checkboxes,$res_error) = @_;
  210:     my $result = '<h3>'.&mt('Current Resource').': '.$probTitle.'</h3>'."\n";
  211:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
  212:     if (ref($res_error)) {
  213:         if ($$res_error) {
  214:             return;
  215:         }
  216:     }
  217:     $result.=&Apache::loncommon::start_data_table()
  218:             .&Apache::loncommon::start_data_table_header_row();
  219:     if ($checkboxes) {
  220:         $result.='<th>&nbsp;</th>';
  221:     }
  222:     $result.='<th>'.&mt('Problem Part').'</th>'
  223:             .'<th>'.&mt('Res. ID').'</th>'
  224:             .'<th>'.&mt('Type').'</th>'
  225:             .&Apache::loncommon::end_data_table_header_row();
  226:     my %resptype = ();
  227:     my $hdgrade='no';
  228:     my %partsseen;
  229:     foreach my $partID (sort(keys(%$responseType))) {
  230:         foreach my $resID (sort(keys(%{ $responseType->{$partID} }))) {
  231:             my $handgrade=$$handgrade{$partID.'_'.$resID};
  232:             my $responsetype = $responseType->{$partID}->{$resID};
  233:             $hdgrade = $handgrade if ($handgrade eq 'yes');
  234:             $result.=&Apache::loncommon::start_data_table_row();
  235:             if ($checkboxes) {
  236:                 if (exists($partsseen{$partID})) {
  237:                     $result.="<td>&nbsp;</td>";
  238:                 } else {
  239:                     $result.="<td><input type='checkbox' name='vPart' value='$partID' checked='checked' /></td>";
  240:                 }
  241:                 $partsseen{$partID}=1;
  242:             }
  243:             my $display_part=&get_display_part($partID,$symb);
  244:             $result.='<td>'.$display_part.'</td>'
  245:                     .'<td>'.'<span class="LC_internal_info">'.$resID.'</span></td>'
  246:                     .'<td>'.&mt($responsetype).'</td>'
  247: #                   .'<td>'.&mt('<b>Handgrade: </b>[_1]',$handgrade).'</td>'
  248:                     .&Apache::loncommon::end_data_table_row();
  249:         }
  250:     }
  251:     $result.=&Apache::loncommon::end_data_table();
  252:     return $result,$responseType,$hdgrade,$partlist,$handgrade;
  253: }
  254: 
  255: sub reset_caches {
  256:     &reset_analyze_cache();
  257:     &reset_perm();
  258: }
  259: 
  260: {
  261:     my %analyze_cache;
  262:     my %analyze_cache_formkeys;
  263: 
  264:     sub reset_analyze_cache {
  265: 	undef(%analyze_cache);
  266:         undef(%analyze_cache_formkeys);
  267:     }
  268: 
  269:     sub get_analyze {
  270: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash)=@_;
  271: 	my $key = "$symb\0$uname\0$udom";
  272: 	if (exists($analyze_cache{$key})) {
  273:             my $getupdate = 0;
  274:             if (ref($add_to_hash) eq 'HASH') {
  275:                 foreach my $item (keys(%{$add_to_hash})) {
  276:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
  277:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
  278:                             $getupdate = 1;
  279:                             last;
  280:                         }
  281:                     } else {
  282:                         $getupdate = 1;
  283:                     }
  284:                 }
  285:             }
  286:             if (!$getupdate) {
  287:                 return $analyze_cache{$key};
  288:             }
  289:         }
  290: 
  291: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  292: 	$url=&Apache::lonnet::clutter($url);
  293:         my %form = ('grade_target'      => 'analyze',
  294:                     'grade_domain'      => $udom,
  295:                     'grade_symb'        => $symb,
  296:                     'grade_courseid'    =>  $env{'request.course.id'},
  297:                     'grade_username'    => $uname,
  298:                     'grade_noincrement' => $no_increment);
  299:         if (ref($add_to_hash)) {
  300:             %form = (%form,%{$add_to_hash});
  301:         } 
  302: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
  303: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  304: 	my %analyze=&Apache::lonnet::str2hash($subresult);
  305:         if (ref($add_to_hash) eq 'HASH') {
  306:             $analyze_cache_formkeys{$key} = $add_to_hash;
  307:         } else {
  308:             $analyze_cache_formkeys{$key} = {};
  309:         }
  310: 	return $analyze_cache{$key} = \%analyze;
  311:     }
  312: 
  313:     sub get_order {
  314: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment)=@_;
  315: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment);
  316: 	return $analyze->{"$partid.$respid.shown"};
  317:     }
  318: 
  319:     sub get_radiobutton_correct_foil {
  320: 	my ($partid,$respid,$symb,$uname,$udom)=@_;
  321: 	my $analyze = &get_analyze($symb,$uname,$udom);
  322:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom);
  323:         if (ref($foils) eq 'ARRAY') {
  324: 	    foreach my $foil (@{$foils}) {
  325: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
  326: 		    return $foil;
  327: 	        }
  328: 	    }
  329: 	}
  330:     }
  331: 
  332:     sub scantron_partids_tograde {
  333:         my ($resource,$cid,$uname,$udom,$check_for_randomlist) = @_;
  334:         my (%analysis,@parts);
  335:         if (ref($resource)) {
  336:             my $symb = $resource->symb();
  337:             my $add_to_form;
  338:             if ($check_for_randomlist) {
  339:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
  340:             }
  341:             my $analyze = &get_analyze($symb,$uname,$udom,undef,$add_to_form);
  342:             if (ref($analyze) eq 'HASH') {
  343:                 %analysis = %{$analyze};
  344:             }
  345:             if (ref($analysis{'parts'}) eq 'ARRAY') {
  346:                 foreach my $part (@{$analysis{'parts'}}) {
  347:                     my ($id,$respid) = split(/\./,$part);
  348:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
  349:                         push(@parts,$part);
  350:                     }
  351:                 }
  352:             }
  353:         }
  354:         return (\%analysis,\@parts);
  355:     }
  356: 
  357: }
  358: 
  359: #--- Clean response type for display
  360: #--- Currently filters option/rank/radiobutton/match/essay/Task
  361: #        response types only.
  362: sub cleanRecord {
  363:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
  364: 	$uname,$udom) = @_;
  365:     my $grayFont = '<span class="LC_internal_info">';
  366:     if ($response =~ /^(option|rank)$/) {
  367: 	my %answer=&Apache::lonnet::str2hash($answer);
  368: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  369: 	my ($toprow,$bottomrow);
  370: 	foreach my $foil (@$order) {
  371: 	    if ($grading{$foil} == 1) {
  372: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
  373: 	    } else {
  374: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
  375: 	    }
  376: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  377: 	}
  378: 	return '<blockquote><table border="1">'.
  379: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  380: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  381: 	    $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
  382:     } elsif ($response eq 'match') {
  383: 	my %answer=&Apache::lonnet::str2hash($answer);
  384: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  385: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
  386: 	my ($toprow,$middlerow,$bottomrow);
  387: 	foreach my $foil (@$order) {
  388: 	    my $item=shift(@items);
  389: 	    if ($grading{$foil} == 1) {
  390: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
  391: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
  392: 	    } else {
  393: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
  394: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
  395: 	    }
  396: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  397: 	}
  398: 	return '<blockquote><table border="1">'.
  399: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  400: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
  401: 	    $middlerow.'</tr>'.
  402: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  403: 	    $bottomrow.'</tr>'.'</table></blockquote>';
  404:     } elsif ($response eq 'radiobutton') {
  405: 	my %answer=&Apache::lonnet::str2hash($answer);
  406: 	my ($toprow,$bottomrow);
  407: 	my $correct = 
  408: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom);
  409: 	foreach my $foil (@$order) {
  410: 	    if (exists($answer{$foil})) {
  411: 		if ($foil eq $correct) {
  412: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
  413: 		} else {
  414: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
  415: 		}
  416: 	    } else {
  417: 		$toprow.='<td>'.&mt('false').'</td>';
  418: 	    }
  419: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  420: 	}
  421: 	return '<blockquote><table border="1">'.
  422: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  423: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  424: 	    $grayFont.$bottomrow.'</tr>'.'</table></blockquote>';
  425:     } elsif ($response eq 'essay') {
  426: 	if (! exists ($env{'form.'.$symb})) {
  427: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
  428: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
  429: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
  430: 
  431: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  432: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
  433: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
  434: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
  435: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
  436: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
  437: 	}
  438: 	$answer =~ s-\n-<br />-g;
  439: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
  440:     } elsif ( $response eq 'organic') {
  441: 	my $result='Smile representation: "<tt>'.$answer.'</tt>"';
  442: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
  443: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
  444: 	return $result;
  445:     } elsif ( $response eq 'Task') {
  446: 	if ( $answer eq 'SUBMITTED') {
  447: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
  448: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
  449: 	    return $result;
  450: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
  451: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
  452: 			       keys(%{$record}));
  453: 	    return join('<br />',($version,@matches));
  454: 			       
  455: 			       
  456: 	} else {
  457: 	    my $result =
  458: 		'<p>'
  459: 		.&mt('Overall result: [_1]',
  460: 		     $record->{$version."resource.$respid.$partid.status"})
  461: 		.'</p>';
  462: 	    
  463: 	    $result .= '<ul>';
  464: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
  465: 			     keys(%{$record}));
  466: 	    foreach my $grade (sort(@grade)) {
  467: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
  468: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
  469: 				     $dim, $record->{$grade}).
  470: 			  '</li>';
  471: 	    }
  472: 	    $result.='</ul>';
  473: 	    return $result;
  474: 	}
  475:     } elsif ( $response =~ m/(?:numerical|formula)/) {
  476: 	$answer = 
  477: 	    &Apache::loncommon::format_previous_attempt_value('submission',
  478: 							      $answer);
  479:     }
  480:     return $answer;
  481: }
  482: 
  483: #-- A couple of common js functions
  484: sub commonJSfunctions {
  485:     my $request = shift;
  486:     $request->print(<<COMMONJSFUNCTIONS);
  487: <script type="text/javascript" language="javascript">
  488:     function radioSelection(radioButton) {
  489: 	var selection=null;
  490: 	if (radioButton.length > 1) {
  491: 	    for (var i=0; i<radioButton.length; i++) {
  492: 		if (radioButton[i].checked) {
  493: 		    return radioButton[i].value;
  494: 		}
  495: 	    }
  496: 	} else {
  497: 	    if (radioButton.checked) return radioButton.value;
  498: 	}
  499: 	return selection;
  500:     }
  501: 
  502:     function pullDownSelection(selectOne) {
  503: 	var selection="";
  504: 	if (selectOne.length > 1) {
  505: 	    for (var i=0; i<selectOne.length; i++) {
  506: 		if (selectOne[i].selected) {
  507: 		    return selectOne[i].value;
  508: 		}
  509: 	    }
  510: 	} else {
  511:             // only one value it must be the selected one
  512: 	    return selectOne.value;
  513: 	}
  514:     }
  515: </script>
  516: COMMONJSFUNCTIONS
  517: }
  518: 
  519: #--- Dumps the class list with usernames,list of sections,
  520: #--- section, ids and fullnames for each user.
  521: sub getclasslist {
  522:     my ($getsec,$filterlist,$getgroup) = @_;
  523:     my @getsec;
  524:     my @getgroup;
  525:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  526:     if (!ref($getsec)) {
  527: 	if ($getsec ne '' && $getsec ne 'all') {
  528: 	    @getsec=($getsec);
  529: 	}
  530:     } else {
  531: 	@getsec=@{$getsec};
  532:     }
  533:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
  534:     if (!ref($getgroup)) {
  535: 	if ($getgroup ne '' && $getgroup ne 'all') {
  536: 	    @getgroup=($getgroup);
  537: 	}
  538:     } else {
  539: 	@getgroup=@{$getgroup};
  540:     }
  541:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
  542: 
  543:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
  544:     # Bail out if we were unable to get the classlist
  545:     return if (! defined($classlist));
  546:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
  547:     #
  548:     my %sections;
  549:     my %fullnames;
  550:     foreach my $student (keys(%$classlist)) {
  551:         my $end      = 
  552:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
  553:         my $start    = 
  554:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
  555:         my $id       = 
  556:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
  557:         my $section  = 
  558:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
  559:         my $fullname = 
  560:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
  561:         my $status   = 
  562:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
  563:         my $group   = 
  564:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  565: 	# filter students according to status selected
  566: 	if ($filterlist && (!($stu_status =~ /Any/))) {
  567: 	    if (!($stu_status =~ $status)) {
  568: 		delete($classlist->{$student});
  569: 		next;
  570: 	    }
  571: 	}
  572: 	# filter students according to groups selected
  573: 	my @stu_groups = split(/,/,$group);
  574: 	if (@getgroup) {
  575: 	    my $exclude = 1;
  576: 	    foreach my $grp (@getgroup) {
  577: 	        foreach my $stu_group (@stu_groups) {
  578: 	            if ($stu_group eq $grp) {
  579: 	                $exclude = 0;
  580:     	            } 
  581: 	        }
  582:     	        if (($grp eq 'none') && !$group) {
  583:         	        $exclude = 0;
  584:         	}
  585: 	    }
  586: 	    if ($exclude) {
  587: 	        delete($classlist->{$student});
  588: 	    }
  589: 	}
  590: 	$section = ($section ne '' ? $section : 'none');
  591: 	if (&canview($section)) {
  592: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  593: 		$sections{$section}++;
  594: 		if ($classlist->{$student}) {
  595: 		    $fullnames{$student}=$fullname;
  596: 		}
  597: 	    } else {
  598: 		delete($classlist->{$student});
  599: 	    }
  600: 	} else {
  601: 	    delete($classlist->{$student});
  602: 	}
  603:     }
  604:     my %seen = ();
  605:     my @sections = sort(keys(%sections));
  606:     return ($classlist,\@sections,\%fullnames);
  607: }
  608: 
  609: sub canmodify {
  610:     my ($sec)=@_;
  611:     if ($perm{'mgr'}) {
  612: 	if (!defined($perm{'mgr_section'})) {
  613: 	    # can modify whole class
  614: 	    return 1;
  615: 	} else {
  616: 	    if ($sec eq $perm{'mgr_section'}) {
  617: 		#can modify the requested section
  618: 		return 1;
  619: 	    } else {
  620: 		# can't modify the request section
  621: 		return 0;
  622: 	    }
  623: 	}
  624:     }
  625:     #can't modify
  626:     return 0;
  627: }
  628: 
  629: sub canview {
  630:     my ($sec)=@_;
  631:     if ($perm{'vgr'}) {
  632: 	if (!defined($perm{'vgr_section'})) {
  633: 	    # can modify whole class
  634: 	    return 1;
  635: 	} else {
  636: 	    if ($sec eq $perm{'vgr_section'}) {
  637: 		#can modify the requested section
  638: 		return 1;
  639: 	    } else {
  640: 		# can't modify the request section
  641: 		return 0;
  642: 	    }
  643: 	}
  644:     }
  645:     #can't modify
  646:     return 0;
  647: }
  648: 
  649: #--- Retrieve the grade status of a student for all the parts
  650: sub student_gradeStatus {
  651:     my ($symb,$udom,$uname,$partlist) = @_;
  652:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
  653:     my %partstatus = ();
  654:     foreach (@$partlist) {
  655: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  656: 	$status              = 'nothing' if ($status eq '');
  657: 	$partstatus{$_}      = $status;
  658: 	my $subkey           = "resource.$_.submitted_by";
  659: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
  660:     }
  661:     return %partstatus;
  662: }
  663: 
  664: # hidden form and javascript that calls the form
  665: # Use by verifyscript and viewgrades
  666: # Shows a student's view of problem and submission
  667: sub jscriptNform {
  668:     my ($symb) = @_;
  669:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  670:     my $jscript='<script type="text/javascript" language="javascript">'."\n".
  671: 	'    function viewOneStudent(user,domain) {'."\n".
  672: 	'	document.onestudent.student.value = user;'."\n".
  673: 	'	document.onestudent.userdom.value = domain;'."\n".
  674: 	'	document.onestudent.submit();'."\n".
  675: 	'    }'."\n".
  676: 	'</script>'."\n";
  677:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
  678: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  679: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
  680: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n".
  681: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
  682: 	'<input type="hidden" name="command" value="submission" />'."\n".
  683: 	'<input type="hidden" name="student" value="" />'."\n".
  684: 	'<input type="hidden" name="userdom" value="" />'."\n".
  685: 	'</form>'."\n";
  686:     return $jscript;
  687: }
  688: 
  689: 
  690: 
  691: # Given the score (as a number [0-1] and the weight) what is the final
  692: # point value? This function will round to the nearest tenth, third,
  693: # or quarter if one of those is within the tolerance of .00001.
  694: sub compute_points {
  695:     my ($score, $weight) = @_;
  696:     
  697:     my $tolerance = .00001;
  698:     my $points = $score * $weight;
  699: 
  700:     # Check for nearness to 1/x.
  701:     my $check_for_nearness = sub {
  702:         my ($factor) = @_;
  703:         my $num = ($points * $factor) + $tolerance;
  704:         my $floored_num = floor($num);
  705:         if ($num - $floored_num < 2 * $tolerance * $factor) {
  706:             return $floored_num / $factor;
  707:         }
  708:         return $points;
  709:     };
  710: 
  711:     $points = $check_for_nearness->(10);
  712:     $points = $check_for_nearness->(3);
  713:     $points = $check_for_nearness->(4);
  714:     
  715:     return $points;
  716: }
  717: 
  718: #------------------ End of general use routines --------------------
  719: 
  720: #
  721: # Find most similar essay
  722: #
  723: 
  724: sub most_similar {
  725:     my ($uname,$udom,$uessay,$old_essays)=@_;
  726: 
  727: # ignore spaces and punctuation
  728: 
  729:     $uessay=~s/\W+/ /gs;
  730: 
  731: # ignore empty submissions (occuring when only files are sent)
  732: 
  733:     unless ($uessay=~/\w+/) { return ''; }
  734: 
  735: # these will be returned. Do not care if not at least 50 percent similar
  736:     my $limit=0.6;
  737:     my $sname='';
  738:     my $sdom='';
  739:     my $scrsid='';
  740:     my $sessay='';
  741: # go through all essays ...
  742:     foreach my $tkey (keys(%$old_essays)) {
  743: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  744: # ... except the same student
  745:         next if (($tname eq $uname) && ($tdom eq $udom));
  746: 	my $tessay=$old_essays->{$tkey};
  747: 	$tessay=~s/\W+/ /gs;
  748: # String similarity gives up if not even limit
  749: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  750: # Found one
  751: 	if ($tsimilar>$limit) {
  752: 	    $limit=$tsimilar;
  753: 	    $sname=$tname;
  754: 	    $sdom=$tdom;
  755: 	    $scrsid=$tcrsid;
  756: 	    $sessay=$old_essays->{$tkey};
  757: 	}
  758:     }
  759:     if ($limit>0.6) {
  760:        return ($sname,$sdom,$scrsid,$sessay,$limit);
  761:     } else {
  762:        return ('','','','',0);
  763:     }
  764: }
  765: 
  766: #-------------------------------------------------------------------
  767: 
  768: #------------------------------------ Receipt Verification Routines
  769: #
  770: #--- Check whether a receipt number is valid.---
  771: sub verifyreceipt {
  772:     my $request  = shift;
  773: 
  774:     my $courseid = $env{'request.course.id'};
  775:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
  776: 	$env{'form.receipt'};
  777:     $receipt     =~ s/[^\-\d]//g;
  778:     my ($symb)   = &get_symb($request);
  779: 
  780:     my $title.=
  781: 	'<h3><span class="LC_info">'.
  782: 	&mt('Verifying Receipt No. [_1]',$receipt).
  783: 	'</span></h3>'."\n".
  784: 	'<h4>'.&mt('<b>Resource: </b>[_1]',$env{'form.probTitle'}).
  785: 	'</h4>'."\n";
  786: 
  787:     my ($string,$contents,$matches) = ('','',0);
  788:     my (undef,undef,$fullname) = &getclasslist('all','0');
  789:     
  790:     my $receiptparts=0;
  791:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
  792: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
  793:     my $parts=['0'];
  794:     if ($receiptparts) {
  795:         my $res_error; 
  796:         ($parts)=&response_type($symb,\$res_error);
  797:         if ($res_error) {
  798:             return &navmap_errormsg();
  799:         } 
  800:     }
  801:     
  802:     my $header = 
  803: 	&Apache::loncommon::start_data_table().
  804: 	&Apache::loncommon::start_data_table_header_row().
  805: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
  806: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
  807: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
  808:     if ($receiptparts) {
  809: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
  810:     }
  811:     $header.=
  812: 	&Apache::loncommon::end_data_table_header_row();
  813: 
  814:     foreach (sort 
  815: 	     {
  816: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  817: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  818: 		 }
  819: 		 return $a cmp $b;
  820: 	     } (keys(%$fullname))) {
  821: 	my ($uname,$udom)=split(/\:/);
  822: 	foreach my $part (@$parts) {
  823: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
  824: 		$contents.=
  825: 		    &Apache::loncommon::start_data_table_row().
  826: 		    '<td>&nbsp;'."\n".
  827: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
  828: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
  829: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
  830: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
  831: 		if ($receiptparts) {
  832: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
  833: 		}
  834: 		$contents.= 
  835: 		    &Apache::loncommon::end_data_table_row()."\n";
  836: 		
  837: 		$matches++;
  838: 	    }
  839: 	}
  840:     }
  841:     if ($matches == 0) {
  842:         $string = $title
  843:                  .'<p class="LC_warning">'
  844:                  .&mt('No match found for the above receipt number.')
  845:                  .'</p>';
  846:     } else {
  847: 	$string = &jscriptNform($symb).$title.
  848: 	    '<p>'.
  849: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
  850: 	    '</p>'.
  851: 	    $header.
  852: 	    $contents.
  853: 	    &Apache::loncommon::end_data_table()."\n";
  854:     }
  855:     return $string.&show_grading_menu_form($symb);
  856: }
  857: 
  858: #--- This is called by a number of programs.
  859: #--- Called from the Grading Menu - View/Grade an individual student
  860: #--- Also called directly when one clicks on the subm button 
  861: #    on the problem page.
  862: sub listStudents {
  863:     my ($request) = shift;
  864: 
  865:     my ($symb) = &get_symb($request);
  866:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
  867:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
  868:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
  869:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
  870:     my $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  871:     my $viewgrade = $env{'form.showgrading'} eq 'yes' ? 'View/Grade/Regrade' : 'View';
  872:     $env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
  873: 	&Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
  874: 
  875:     my $result='<h3><span class="LC_info">&nbsp;'
  876: 	.&mt("$viewgrade Submissions for a Student or a Group of Students")
  877: 	.'</span></h3>';
  878: 
  879:     my ($table,undef,$hdgrade,$partlist,$handgrade) = &showResourceInfo($symb,$env{'form.probTitle'},($env{'form.showgrading'} eq 'yes'));
  880: 
  881:     my %lt = &Apache::lonlocal::texthash (
  882: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
  883: 		'single'   => 'Please select the student before clicking on the Next button.',
  884: 	     );
  885:     $request->print(<<LISTJAVASCRIPT);
  886: <script type="text/javascript" language="javascript">
  887:     function checkSelect(checkBox) {
  888: 	var ctr=0;
  889: 	var sense="";
  890: 	if (checkBox.length > 1) {
  891: 	    for (var i=0; i<checkBox.length; i++) {
  892: 		if (checkBox[i].checked) {
  893: 		    ctr++;
  894: 		}
  895: 	    }
  896: 	    sense = '$lt{'multiple'}';
  897: 	} else {
  898: 	    if (checkBox.checked) {
  899: 		ctr = 1;
  900: 	    }
  901: 	    sense = '$lt{'single'}';
  902: 	}
  903: 	if (ctr == 0) {
  904: 	    alert(sense);
  905: 	    return false;
  906: 	}
  907: 	document.gradesub.submit();
  908:     }
  909: 
  910:     function reLoadList(formname) {
  911: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
  912: 	formname.command.value = 'submission';
  913: 	formname.submit();
  914:     }
  915: </script>
  916: LISTJAVASCRIPT
  917: 
  918:     &commonJSfunctions($request);
  919:     $request->print($result);
  920: 
  921:     my $checkhdgrade = ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1 ) ? 'checked="checked"' : '';
  922:     my $checklastsub = $checkhdgrade eq '' ? 'checked="checked"' : '';
  923:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
  924: 	"\n".$table;
  925: 	
  926:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
  927:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
  928:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
  929:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
  930:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
  931:                   .&Apache::lonhtmlcommon::row_closure();
  932:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
  933:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
  934:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
  935:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
  936:                   .&Apache::lonhtmlcommon::row_closure();
  937: 
  938:     my $submission_options;
  939:     if ($env{'form.handgrade'} eq 'yes' && scalar(@$partlist) > 1) {
  940: 	$submission_options.=
  941: 	    '<label><input type="radio" name="lastSub" value="hdgrade" '.$checkhdgrade.' /> '.&mt('essay part only').' </label>'."\n";
  942:     }
  943:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  944:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
  945:     $env{'form.Status'} = $saveStatus;
  946:     $submission_options.=
  947:         '<span class="LC_nobreak">'.
  948:         '<label><input type="radio" name="lastSub" value="lastonly" '.$checklastsub.' /> '.
  949:         &mt('last submission only').' </label></span>'."\n".
  950:         '<span class="LC_nobreak">'.
  951:         '<label><input type="radio" name="lastSub" value="last" /> '.
  952:         &mt('last submission &amp; parts info').' </label></span>'."\n".
  953:         '<span class="LC_nobreak">'.
  954:         '<label><input type="radio" name="lastSub" value="datesub" /> '.
  955:         &mt('by dates and submissions').'</label></span>'."\n".
  956:         '<span class="LC_nobreak">'.
  957:         '<label><input type="radio" name="lastSub" value="all" /> '.
  958:         &mt('all details').'</label></span>';
  959:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Submissions'))
  960:                   .$submission_options
  961:                   .&Apache::lonhtmlcommon::row_closure();
  962: 
  963:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
  964:                   .'<select name="increment">'
  965:                   .'<option value="1">'.&mt('Whole Points').'</option>'
  966:                   .'<option value=".5">'.&mt('Half Points').'</option>'
  967:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
  968:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
  969:                   .'</select>'
  970:                   .&Apache::lonhtmlcommon::row_closure();
  971: 
  972:     $gradeTable .= 
  973:         &build_section_inputs().
  974: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
  975: 	'<input type="hidden" name="handgrade"   value="'.$env{'form.handgrade'}.'" /><br />'."\n".
  976: 	'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" /><br />'."\n".
  977: 	'<input type="hidden" name="saveState"   value="'.$env{'form.saveState'}.'" />'."\n".
  978: 	'<input type="hidden" name="probTitle"   value="'.$env{'form.probTitle'}.'" />'."\n".
  979: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  980: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
  981: 
  982:     if (exists($env{'form.gradingMenu'}) && exists($env{'form.Status'})) {
  983: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
  984:     } else {
  985:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
  986:                       .&Apache::lonhtmlcommon::StatusOptions(
  987:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
  988:                       .&Apache::lonhtmlcommon::row_closure();
  989:     }
  990: 
  991:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
  992:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
  993:                   .&Apache::lonhtmlcommon::row_closure(1)
  994:                   .&Apache::lonhtmlcommon::end_pick_box();
  995: 
  996:     $gradeTable .= '<p>'
  997:                   .&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"
  998:                   .'<input type="hidden" name="command" value="processGroup" />'
  999:                   .'</p>';
 1000: 
 1001: # checkall buttons
 1002:     $gradeTable.=&check_script('gradesub', 'stuinfo');
 1003:     $gradeTable.='<input type="button" '."\n".
 1004:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
 1005:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
 1006:     $gradeTable.=&check_buttons();
 1007:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
 1008:     $gradeTable.= &Apache::loncommon::start_data_table().
 1009: 	&Apache::loncommon::start_data_table_header_row();
 1010:     my $loop = 0;
 1011:     while ($loop < 2) {
 1012: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
 1013: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
 1014: 	if ($env{'form.showgrading'} eq 'yes' 
 1015: 	    && $submitonly ne 'queued'
 1016: 	    && $submitonly ne 'all') {
 1017: 	    foreach my $part (sort(@$partlist)) {
 1018: 		my $display_part=
 1019: 		    &get_display_part((split(/_/,$part))[0],$symb);
 1020: 		$gradeTable.=
 1021: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
 1022: 	    }
 1023: 	} elsif ($submitonly eq 'queued') {
 1024: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
 1025: 	}
 1026: 	$loop++;
 1027: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
 1028:     }
 1029:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
 1030: 
 1031:     my $ctr = 0;
 1032:     foreach my $student (sort 
 1033: 			 {
 1034: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 1035: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 1036: 			     }
 1037: 			     return $a cmp $b;
 1038: 			 }
 1039: 			 (keys(%$fullname))) {
 1040: 	my ($uname,$udom) = split(/:/,$student);
 1041: 
 1042: 	my %status = ();
 1043: 
 1044: 	if ($submitonly eq 'queued') {
 1045: 	    my %queue_status = 
 1046: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 1047: 							$udom,$uname);
 1048: 	    next if (!defined($queue_status{'gradingqueue'}));
 1049: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
 1050: 	}
 1051: 
 1052: 	if ($env{'form.showgrading'} eq 'yes' 
 1053: 	    && $submitonly ne 'queued'
 1054: 	    && $submitonly ne 'all') {
 1055: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
 1056: 	    my $submitted = 0;
 1057: 	    my $graded = 0;
 1058: 	    my $incorrect = 0;
 1059: 	    foreach (keys(%status)) {
 1060: 		$submitted = 1 if ($status{$_} ne 'nothing');
 1061: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
 1062: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
 1063: 		
 1064: 		my ($foo,$partid,$foo1) = split(/\./,$_);
 1065: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 1066: 		    $submitted = 0;
 1067: 		    my ($part)=split(/\./,$partid);
 1068: 		    $gradeTable.='<input type="hidden" name="'.
 1069: 			$student.':'.$part.':submitted_by" value="'.
 1070: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
 1071: 		}
 1072: 	    }
 1073: 	    
 1074: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 1075: 				     $submitonly eq 'incorrect' ||
 1076: 				     $submitonly eq 'graded'));
 1077: 	    next if (!$graded && ($submitonly eq 'graded'));
 1078: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 1079: 	}
 1080: 
 1081: 	$ctr++;
 1082: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
 1083:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
 1084: 	if ( $perm{'vgr'} eq 'F' ) {
 1085: 	    if ($ctr%2 ==1) {
 1086: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
 1087: 	    }
 1088: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
 1089:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
 1090:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
 1091: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
 1092: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
 1093: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
 1094: 
 1095: 	    if ($env{'form.showgrading'} eq 'yes' && $submitonly ne 'all') {
 1096: 		foreach (sort(keys(%status))) {
 1097: 		    next if ($_ =~ /^resource.*?submitted_by$/);
 1098: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
 1099: 		}
 1100: 	    }
 1101: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
 1102: 	    if ($ctr%2 ==0) {
 1103: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
 1104: 	    }
 1105: 	}
 1106:     }
 1107:     if ($ctr%2 ==1) {
 1108: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
 1109: 	    if ($env{'form.showgrading'} eq 'yes' 
 1110: 		&& $submitonly ne 'queued'
 1111: 		&& $submitonly ne 'all') {
 1112: 		foreach (@$partlist) {
 1113: 		    $gradeTable.='<td>&nbsp;</td>';
 1114: 		}
 1115: 	    } elsif ($submitonly eq 'queued') {
 1116: 		$gradeTable.='<td>&nbsp;</td>';
 1117: 	    }
 1118: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
 1119:     }
 1120: 
 1121:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
 1122:         '<input type="button" '.
 1123:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
 1124:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
 1125:     if ($ctr == 0) {
 1126: 	my $num_students=(scalar(keys(%$fullname)));
 1127: 	if ($num_students eq 0) {
 1128: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
 1129: 	} else {
 1130: 	    my $submissions='submissions';
 1131: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
 1132: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 1133: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 1134: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
 1135: 		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
 1136: 		    $num_students).
 1137: 		'</span><br />';
 1138: 	}
 1139:     } elsif ($ctr == 1) {
 1140: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
 1141:     }
 1142:     $gradeTable.=&show_grading_menu_form($symb);
 1143:     $request->print($gradeTable);
 1144:     return '';
 1145: }
 1146: 
 1147: #---- Called from the listStudents routine
 1148: 
 1149: sub check_script {
 1150:     my ($form, $type)=@_;
 1151:     my $chkallscript='<script type="text/javascript">
 1152:     function checkall() {
 1153:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1154:             ele = document.forms.'.$form.'.elements[i];
 1155:             if (ele.name == "'.$type.'") {
 1156:             document.forms.'.$form.'.elements[i].checked=true;
 1157:                                        }
 1158:         }
 1159:     }
 1160: 
 1161:     function checksec() {
 1162:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1163:             ele = document.forms.'.$form.'.elements[i];
 1164:            string = document.forms.'.$form.'.chksec.value;
 1165:            if
 1166:           (ele.value.indexOf(":::SECTION"+string)>0) {
 1167:               document.forms.'.$form.'.elements[i].checked=true;
 1168:             }
 1169:         }
 1170:     }
 1171: 
 1172: 
 1173:     function uncheckall() {
 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=false;
 1178:                                        }
 1179:         }
 1180:     }
 1181: 
 1182: </script>'."\n";
 1183:     return $chkallscript;
 1184: }
 1185: 
 1186: sub check_buttons {
 1187:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
 1188:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
 1189:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
 1190:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
 1191:     return $buttons;
 1192: }
 1193: 
 1194: #     Displays the submissions for one student or a group of students
 1195: sub processGroup {
 1196:     my ($request)  = shift;
 1197:     my $ctr        = 0;
 1198:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1199:     my $total      = scalar(@stuchecked)-1;
 1200: 
 1201:     foreach my $student (@stuchecked) {
 1202: 	my ($uname,$udom,$fullname) = split(/:/,$student);
 1203: 	$env{'form.student'}        = $uname;
 1204: 	$env{'form.userdom'}        = $udom;
 1205: 	$env{'form.fullname'}       = $fullname;
 1206: 	&submission($request,$ctr,$total);
 1207: 	$ctr++;
 1208:     }
 1209:     return '';
 1210: }
 1211: 
 1212: #------------------------------------------------------------------------------------
 1213: #
 1214: #-------------------------- Next few routines handles grading by student, essentially
 1215: #                           handles essay response type problem/part
 1216: #
 1217: #--- Javascript to handle the submission page functionality ---
 1218: sub sub_page_js {
 1219:     my $request = shift;
 1220: 	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 1221:     $request->print(<<SUBJAVASCRIPT);
 1222: <script type="text/javascript" language="javascript">
 1223:     function updateRadio(formname,id,weight) {
 1224: 	var gradeBox = formname["GD_BOX"+id];
 1225: 	var radioButton = formname["RADVAL"+id];
 1226: 	var oldpts = formname["oldpts"+id].value;
 1227: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
 1228: 	gradeBox.value = pts;
 1229: 	var resetbox = false;
 1230: 	if (isNaN(pts) || pts < 0) {
 1231: 	    alert("$alertmsg"+pts);
 1232: 	    for (var i=0; i<radioButton.length; i++) {
 1233: 		if (radioButton[i].checked) {
 1234: 		    gradeBox.value = i;
 1235: 		    resetbox = true;
 1236: 		}
 1237: 	    }
 1238: 	    if (!resetbox) {
 1239: 		formtextbox.value = "";
 1240: 	    }
 1241: 	    return;
 1242: 	}
 1243: 
 1244: 	if (pts > weight) {
 1245: 	    var resp = confirm("You entered a value ("+pts+
 1246: 			       ") greater than the weight for the part. Accept?");
 1247: 	    if (resp == false) {
 1248: 		gradeBox.value = oldpts;
 1249: 		return;
 1250: 	    }
 1251: 	}
 1252: 
 1253: 	for (var i=0; i<radioButton.length; i++) {
 1254: 	    radioButton[i].checked=false;
 1255: 	    if (pts == i && pts != "") {
 1256: 		radioButton[i].checked=true;
 1257: 	    }
 1258: 	}
 1259: 	updateSelect(formname,id);
 1260: 	formname["stores"+id].value = "0";
 1261:     }
 1262: 
 1263:     function writeBox(formname,id,pts) {
 1264: 	var gradeBox = formname["GD_BOX"+id];
 1265: 	if (checkSolved(formname,id) == 'update') {
 1266: 	    gradeBox.value = pts;
 1267: 	} else {
 1268: 	    var oldpts = formname["oldpts"+id].value;
 1269: 	    gradeBox.value = oldpts;
 1270: 	    var radioButton = formname["RADVAL"+id];
 1271: 	    for (var i=0; i<radioButton.length; i++) {
 1272: 		radioButton[i].checked=false;
 1273: 		if (i == oldpts) {
 1274: 		    radioButton[i].checked=true;
 1275: 		}
 1276: 	    }
 1277: 	}
 1278: 	formname["stores"+id].value = "0";
 1279: 	updateSelect(formname,id);
 1280: 	return;
 1281:     }
 1282: 
 1283:     function clearRadBox(formname,id) {
 1284: 	if (checkSolved(formname,id) == 'noupdate') {
 1285: 	    updateSelect(formname,id);
 1286: 	    return;
 1287: 	}
 1288: 	gradeSelect = formname["GD_SEL"+id];
 1289: 	for (var i=0; i<gradeSelect.length; i++) {
 1290: 	    if (gradeSelect[i].selected) {
 1291: 		var selectx=i;
 1292: 	    }
 1293: 	}
 1294: 	var stores = formname["stores"+id];
 1295: 	if (selectx == stores.value) { return };
 1296: 	var gradeBox = formname["GD_BOX"+id];
 1297: 	gradeBox.value = "";
 1298: 	var radioButton = formname["RADVAL"+id];
 1299: 	for (var i=0; i<radioButton.length; i++) {
 1300: 	    radioButton[i].checked=false;
 1301: 	}
 1302: 	stores.value = selectx;
 1303:     }
 1304: 
 1305:     function checkSolved(formname,id) {
 1306: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
 1307: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
 1308: 	    if (!reply) {return "noupdate";}
 1309: 	    formname.overRideScore.value = 'yes';
 1310: 	}
 1311: 	return "update";
 1312:     }
 1313: 
 1314:     function updateSelect(formname,id) {
 1315: 	formname["GD_SEL"+id][0].selected = true;
 1316: 	return;
 1317:     }
 1318: 
 1319: //=========== Check that a point is assigned for all the parts  ============
 1320:     function checksubmit(formname,val,total,parttot) {
 1321: 	formname.gradeOpt.value = val;
 1322: 	if (val == "Save & Next") {
 1323: 	    for (i=0;i<=total;i++) {
 1324: 		for (j=0;j<parttot;j++) {
 1325: 		    var partid = formname["partid"+i+"_"+j].value;
 1326: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1327: 			var points = formname["GD_BOX"+i+"_"+partid].value;
 1328: 			if (points == "") {
 1329: 			    var name = formname["name"+i].value;
 1330: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
 1331: 			    var resp = confirm("You did not assign a score for "+studentID+
 1332: 					       ", part "+partid+". Continue?");
 1333: 			    if (resp == false) {
 1334: 				formname["GD_BOX"+i+"_"+partid].focus();
 1335: 				return false;
 1336: 			    }
 1337: 			}
 1338: 		    }
 1339: 		    
 1340: 		}
 1341: 	    }
 1342: 	    
 1343: 	}
 1344: 	if (val == "Grade Student") {
 1345: 	    formname.showgrading.value = "yes";
 1346: 	    if (formname.Status.value == "") {
 1347: 		formname.Status.value = "Active";
 1348: 	    }
 1349: 	    formname.studentNo.value = total;
 1350: 	}
 1351: 	formname.submit();
 1352:     }
 1353: 
 1354: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
 1355:     function checkSubmitPage(formname,total) {
 1356: 	noscore = new Array(100);
 1357: 	var ptr = 0;
 1358: 	for (i=1;i<total;i++) {
 1359: 	    var partid = formname["q_"+i].value;
 1360: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1361: 		var points = formname["GD_BOX"+i+"_"+partid].value;
 1362: 		var status = formname["solved"+i+"_"+partid].value;
 1363: 		if (points == "" && status != "correct_by_student") {
 1364: 		    noscore[ptr] = i;
 1365: 		    ptr++;
 1366: 		}
 1367: 	    }
 1368: 	}
 1369: 	if (ptr != 0) {
 1370: 	    var sense = ptr == 1 ? ": " : "s: ";
 1371: 	    var prolist = "";
 1372: 	    if (ptr == 1) {
 1373: 		prolist = noscore[0];
 1374: 	    } else {
 1375: 		var i = 0;
 1376: 		while (i < ptr-1) {
 1377: 		    prolist += noscore[i]+", ";
 1378: 		    i++;
 1379: 		}
 1380: 		prolist += "and "+noscore[i];
 1381: 	    }
 1382: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
 1383: 	    if (resp == false) {
 1384: 		return false;
 1385: 	    }
 1386: 	}
 1387: 
 1388: 	formname.submit();
 1389:     }
 1390: </script>
 1391: SUBJAVASCRIPT
 1392: }
 1393: 
 1394: #--- javascript for essay type problem --
 1395: sub sub_page_kw_js {
 1396:     my $request = shift;
 1397:     my $iconpath = $request->dir_config('lonIconsURL');
 1398:     &commonJSfunctions($request);
 1399: 
 1400:     my $inner_js_msg_central=<<INNERJS;
 1401:     <script text="text/javascript">
 1402:     function checkInput() {
 1403:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
 1404:       var nmsg   = opener.document.SCORE.savemsgN.value;
 1405:       var usrctr = document.msgcenter.usrctr.value;
 1406:       var newval = opener.document.SCORE["newmsg"+usrctr];
 1407:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
 1408: 
 1409:       var msgchk = "";
 1410:       if (document.msgcenter.subchk.checked) {
 1411:          msgchk = "msgsub,";
 1412:       }
 1413:       var includemsg = 0;
 1414:       for (var i=1; i<=nmsg; i++) {
 1415:           var opnmsg = opener.document.SCORE["savemsg"+i];
 1416:           var frmmsg = document.msgcenter["msg"+i];
 1417:           opnmsg.value = opener.checkEntities(frmmsg.value);
 1418:           var showflg = opener.document.SCORE["shownOnce"+i];
 1419:           showflg.value = "1";
 1420:           var chkbox = document.msgcenter["msgn"+i];
 1421:           if (chkbox.checked) {
 1422:              msgchk += "savemsg"+i+",";
 1423:              includemsg = 1;
 1424:           }
 1425:       }
 1426:       if (document.msgcenter.newmsgchk.checked) {
 1427:          msgchk += "newmsg"+usrctr;
 1428:          includemsg = 1;
 1429:       }
 1430:       imgformname = opener.document.SCORE["mailicon"+usrctr];
 1431:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
 1432:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
 1433:       includemsg.value = msgchk;
 1434: 
 1435:       self.close()
 1436: 
 1437:     }
 1438:     </script>
 1439: INNERJS
 1440: 
 1441:     my $inner_js_highlight_central=<<INNERJS;
 1442:  <script type="text/javascript">
 1443:     function updateChoice(flag) {
 1444:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
 1445:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
 1446:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
 1447:       opener.document.SCORE.refresh.value = "on";
 1448:       if (opener.document.SCORE.keywords.value!=""){
 1449:          opener.document.SCORE.submit();
 1450:       }
 1451:       self.close()
 1452:     }
 1453: </script>
 1454: INNERJS
 1455: 
 1456:     my $start_page_msg_central = 
 1457:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 1458: 				       {'js_ready'  => 1,
 1459: 					'only_body' => 1,
 1460: 					'bgcolor'   =>'#FFFFFF',});
 1461:     my $end_page_msg_central = 
 1462: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1463: 
 1464: 
 1465:     my $start_page_highlight_central = 
 1466:         &Apache::loncommon::start_page('Highlight Central',
 1467: 				       $inner_js_highlight_central,
 1468: 				       {'js_ready'  => 1,
 1469: 					'only_body' => 1,
 1470: 					'bgcolor'   =>'#FFFFFF',});
 1471:     my $end_page_highlight_central = 
 1472: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1473: 
 1474:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
 1475:     $docopen=~s/^document\.//;
 1476:     my $alertmsg = &mt('Please select a word or group of words from document and then click this link.');
 1477:     $request->print(<<SUBJAVASCRIPT);
 1478: <script type="text/javascript" language="javascript">
 1479: 
 1480: //===================== Show list of keywords ====================
 1481:   function keywords(formname) {
 1482:     var nret = prompt("Keywords list, separated by a space. Add/delete to list if desired.",formname.keywords.value);
 1483:     if (nret==null) return;
 1484:     formname.keywords.value = nret;
 1485: 
 1486:     if (formname.keywords.value != "") {
 1487: 	formname.refresh.value = "on";
 1488: 	formname.submit();
 1489:     }
 1490:     return;
 1491:   }
 1492: 
 1493: //===================== Script to view submitted by ==================
 1494:   function viewSubmitter(submitter) {
 1495:     document.SCORE.refresh.value = "on";
 1496:     document.SCORE.NCT.value = "1";
 1497:     document.SCORE.unamedom0.value = submitter;
 1498:     document.SCORE.submit();
 1499:     return;
 1500:   }
 1501: 
 1502: //===================== Script to add keyword(s) ==================
 1503:   function getSel() {
 1504:     if (document.getSelection) txt = document.getSelection();
 1505:     else if (document.selection) txt = document.selection.createRange().text;
 1506:     else return;
 1507:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
 1508:     if (cleantxt=="") {
 1509: 	alert("$alertmsg");
 1510: 	return;
 1511:     }
 1512:     var nret = prompt("Add selection to keyword list? Edit if desired.",cleantxt);
 1513:     if (nret==null) return;
 1514:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
 1515:     if (document.SCORE.keywords.value != "") {
 1516: 	document.SCORE.refresh.value = "on";
 1517: 	document.SCORE.submit();
 1518:     }
 1519:     return;
 1520:   }
 1521: 
 1522: //====================== Script for composing message ==============
 1523:    // preload images
 1524:    img1 = new Image();
 1525:    img1.src = "$iconpath/mailbkgrd.gif";
 1526:    img2 = new Image();
 1527:    img2.src = "$iconpath/mailto.gif";
 1528: 
 1529:   function msgCenter(msgform,usrctr,fullname) {
 1530:     var Nmsg  = msgform.savemsgN.value;
 1531:     savedMsgHeader(Nmsg,usrctr,fullname);
 1532:     var subject = msgform.msgsub.value;
 1533:     var msgchk = document.SCORE["includemsg"+usrctr].value;
 1534:     re = /msgsub/;
 1535:     var shwsel = "";
 1536:     if (re.test(msgchk)) { shwsel = "checked" }
 1537:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
 1538:     displaySubject(checkEntities(subject),shwsel);
 1539:     for (var i=1; i<=Nmsg; i++) {
 1540: 	var testmsg = "savemsg"+i+",";
 1541: 	re = new RegExp(testmsg,"g");
 1542: 	shwsel = "";
 1543: 	if (re.test(msgchk)) { shwsel = "checked" }
 1544: 	var message = document.SCORE["savemsg"+i].value;
 1545: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
 1546: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
 1547: 	                                   //any &lt; is already converted to <, etc. However, only once!!
 1548:     }
 1549:     newmsg = document.SCORE["newmsg"+usrctr].value;
 1550:     shwsel = "";
 1551:     re = /newmsg/;
 1552:     if (re.test(msgchk)) { shwsel = "checked" }
 1553:     newMsg(newmsg,shwsel);
 1554:     msgTail(); 
 1555:     return;
 1556:   }
 1557: 
 1558:   function checkEntities(strx) {
 1559:     if (strx.length == 0) return strx;
 1560:     var orgStr = ["&", "<", ">", '"']; 
 1561:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
 1562:     var counter = 0;
 1563:     while (counter < 4) {
 1564: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
 1565: 	counter++;
 1566:     }
 1567:     return strx;
 1568:   }
 1569: 
 1570:   function strReplace(strx, orgStr, newStr) {
 1571:     return strx.split(orgStr).join(newStr);
 1572:   }
 1573: 
 1574:   function savedMsgHeader(Nmsg,usrctr,fullname) {
 1575:     var height = 70*Nmsg+250;
 1576:     var scrollbar = "no";
 1577:     if (height > 600) {
 1578: 	height = 600;
 1579: 	scrollbar = "yes";
 1580:     }
 1581:     var xpos = (screen.width-600)/2;
 1582:     xpos = (xpos < 0) ? '0' : xpos;
 1583:     var ypos = (screen.height-height)/2-30;
 1584:     ypos = (ypos < 0) ? '0' : ypos;
 1585: 
 1586:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars='+scrollbar+',screenx='+xpos+',screeny='+ypos+',width=600,height='+height);
 1587:     pWin.focus();
 1588:     pDoc = pWin.document;
 1589:     pDoc.$docopen;
 1590:     pDoc.write('$start_page_msg_central');
 1591: 
 1592:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
 1593:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
 1594:     pDoc.write("<h3><span class=\\"LC_info\\">&nbsp;Compose Message for \"+fullname+\"<\\/span><\\/h3><br /><br />");
 1595: 
 1596:     pDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1597:     pDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1598:     pDoc.write("<td><b>Type<\\/b><\\/td><td><b>Include<\\/b><\\/td><td><b>Message<\\/td><\\/tr>");
 1599: }
 1600:     function displaySubject(msg,shwsel) {
 1601:     pDoc = pWin.document;
 1602:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1603:     pDoc.write("<td>Subject<\\/td>");
 1604:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1605:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"60\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 1606: }
 1607: 
 1608:   function displaySavedMsg(ctr,msg,shwsel) {
 1609:     pDoc = pWin.document;
 1610:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1611:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
 1612:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1613:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 1614: }
 1615: 
 1616:   function newMsg(newmsg,shwsel) {
 1617:     pDoc = pWin.document;
 1618:     pDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1619:     pDoc.write("<td align=\\"center\\">New<\\/td>");
 1620:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1621:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 1622: }
 1623: 
 1624:   function msgTail() {
 1625:     pDoc = pWin.document;
 1626:     pDoc.write("<\\/table>");
 1627:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1628:     pDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
 1629:     pDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
 1630:     pDoc.write("<\\/form>");
 1631:     pDoc.write('$end_page_msg_central');
 1632:     pDoc.close();
 1633: }
 1634: 
 1635: //====================== Script for keyword highlight options ==============
 1636:   function kwhighlight() {
 1637:     var kwclr    = document.SCORE.kwclr.value;
 1638:     var kwsize   = document.SCORE.kwsize.value;
 1639:     var kwstyle  = document.SCORE.kwstyle.value;
 1640:     var redsel = "";
 1641:     var grnsel = "";
 1642:     var blusel = "";
 1643:     if (kwclr=="red")   {var redsel="checked"};
 1644:     if (kwclr=="green") {var grnsel="checked"};
 1645:     if (kwclr=="blue")  {var blusel="checked"};
 1646:     var sznsel = "";
 1647:     var sz1sel = "";
 1648:     var sz2sel = "";
 1649:     if (kwsize=="0")  {var sznsel="checked"};
 1650:     if (kwsize=="+1") {var sz1sel="checked"};
 1651:     if (kwsize=="+2") {var sz2sel="checked"};
 1652:     var synsel = "";
 1653:     var syisel = "";
 1654:     var sybsel = "";
 1655:     if (kwstyle=="")    {var synsel="checked"};
 1656:     if (kwstyle=="<i>") {var syisel="checked"};
 1657:     if (kwstyle=="<b>") {var sybsel="checked"};
 1658:     highlightCentral();
 1659:     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
 1660:     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
 1661:     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
 1662:     highlightend();
 1663:     return;
 1664:   }
 1665: 
 1666:   function highlightCentral() {
 1667: //    if (window.hwdWin) window.hwdWin.close();
 1668:     var xpos = (screen.width-400)/2;
 1669:     xpos = (xpos < 0) ? '0' : xpos;
 1670:     var ypos = (screen.height-330)/2-30;
 1671:     ypos = (ypos < 0) ? '0' : ypos;
 1672: 
 1673:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
 1674:     hwdWin.focus();
 1675:     var hDoc = hwdWin.document;
 1676:     hDoc.$docopen;
 1677:     hDoc.write('$start_page_highlight_central');
 1678:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
 1679:     hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;Keyword Highlight Options<\\/span><\\/h3><br /><br />");
 1680: 
 1681:     hDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1682:     hDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1683:     hDoc.write("<td><b>Text Color<\\/b><\\/td><td><b>Font Size<\\/b><\\/td><td><b>Font Style<\\/td><\\/tr>");
 1684:   }
 1685: 
 1686:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
 1687:     var hDoc = hwdWin.document;
 1688:     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1689:     hDoc.write("<td align=\\"left\\">");
 1690:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"<\\/td>");
 1691:     hDoc.write("<td align=\\"left\\">");
 1692:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"<\\/td>");
 1693:     hDoc.write("<td align=\\"left\\">");
 1694:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"<\\/td>");
 1695:     hDoc.write("<\\/tr>");
 1696:   }
 1697: 
 1698:   function highlightend() { 
 1699:     var hDoc = hwdWin.document;
 1700:     hDoc.write("<\\/table>");
 1701:     hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1702:     hDoc.write("<input type=\\"button\\" value=\\"Save\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
 1703:     hDoc.write("<input type=\\"button\\" value=\\"Cancel\\" onclick=\\"self.close()\\"><br /><br />");
 1704:     hDoc.write("<\\/form>");
 1705:     hDoc.write('$end_page_highlight_central');
 1706:     hDoc.close();
 1707:   }
 1708: 
 1709: </script>
 1710: SUBJAVASCRIPT
 1711: }
 1712: 
 1713: sub get_increment {
 1714:     my $increment = $env{'form.increment'};
 1715:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
 1716:         $increment != .1) {
 1717:         $increment = 1;
 1718:     }
 1719:     return $increment;
 1720: }
 1721: 
 1722: sub gradeBox_start {
 1723:     return (
 1724:         &Apache::loncommon::start_data_table()
 1725:        .&Apache::loncommon::start_data_table_header_row()
 1726:        .'<th>'.&mt('Part').'</th>'
 1727:        .'<th>'.&mt('Points').'</th>'
 1728:        .'<th>&nbsp;</th>'
 1729:        .'<th>'.&mt('Assign Grade').'</th>'
 1730:        .'<th>'.&mt('Weight').'</th>'
 1731:        .'<th>'.&mt('Grade Status').'</th>'
 1732:        .&Apache::loncommon::end_data_table_header_row()
 1733:     );
 1734: }
 1735: 
 1736: sub gradeBox_end {
 1737:     return (
 1738:         &Apache::loncommon::end_data_table()
 1739:     );
 1740: }
 1741: #--- displays the grading box, used in essay type problem and grading by page/sequence
 1742: sub gradeBox {
 1743:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
 1744:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1745: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 1746:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
 1747:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
 1748:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
 1749:     $wgt       = ($wgt > 0 ? $wgt : '1');
 1750:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 1751: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
 1752:     my $result='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
 1753:     my $display_part= &get_display_part($partid,$symb);
 1754:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 1755: 				       [$partid]);
 1756:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
 1757:     if ($last_resets{$partid}) {
 1758:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
 1759:     }
 1760:     $result.=&Apache::loncommon::start_data_table_row();
 1761:     my $ctr = 0;
 1762:     my $thisweight = 0;
 1763:     my $increment = &get_increment();
 1764: 
 1765:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
 1766:     while ($thisweight<=$wgt) {
 1767: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
 1768:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
 1769: 	    $thisweight.')" value="'.$thisweight.'" '.
 1770: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
 1771: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 1772:         $thisweight += $increment;
 1773: 	$ctr++;
 1774:     }
 1775:     $radio.='</tr></table>';
 1776: 
 1777:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
 1778: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
 1779: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
 1780: 	$wgt.')" /></td>'."\n";
 1781:     $line.='<td>/'.$wgt.' '.$wgtmsg.
 1782: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
 1783: 	' </td>'."\n";
 1784:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
 1785: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
 1786:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
 1787: 	$line.='<option></option>'.
 1788: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
 1789:     } else {
 1790: 	$line.='<option selected="selected"></option>'.
 1791: 	    '<option value="excused" >'.&mt('excused').'</option>';
 1792:     }
 1793:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
 1794: 
 1795: 
 1796: 	#&mt('<td><b>Part:</b></td><td>[_1]</td><td><b>Points:</b></td><td>[_2]</td><td>or</td><td>[_3]</td>',$display_part,$radio,$line);
 1797:     $result .= 
 1798: 	    '<td>'.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
 1799:     $result.=&Apache::loncommon::end_data_table_row();
 1800:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 1801: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 1802: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
 1803: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
 1804:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
 1805:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
 1806:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
 1807:         $aggtries.'" />'."\n";
 1808:     my $res_error;
 1809:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
 1810:     if ($res_error) {
 1811:         return &navmap_errormsg();
 1812:     }
 1813:     return $result;
 1814: }
 1815: 
 1816: sub handback_box {
 1817:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error) = @_;
 1818:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error);
 1819:     my (@respids);
 1820:      my @part_response_id = &flatten_responseType($responseType);
 1821:     foreach my $part_response_id (@part_response_id) {
 1822:     	my ($part,$resp) = @{ $part_response_id };
 1823:         if ($part eq $partid) {
 1824:             push(@respids,$resp);
 1825:         }
 1826:     }
 1827:     my $result;
 1828:     foreach my $respid (@respids) {
 1829: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 1830: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 1831: 	next if (!@$files);
 1832: 	my $file_counter = 1;
 1833: 	foreach my $file (@$files) {
 1834: 	    if ($file =~ /\/portfolio\//) {
 1835:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
 1836:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
 1837:     	        $file_disp = "$name.$ext";
 1838:     	        $file = $file_path.$file_disp;
 1839:     	        $result.=&mt('Return commented version of [_1] to student.',
 1840:     			 '<span class="LC_filename">'.$file_disp.'</span>');
 1841:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
 1842:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />';
 1843:     	        $result.='('.&mt('File will be uploaded when you click on Save &amp; Next below.').')<br />';
 1844:     	        $file_counter++;
 1845: 	    }
 1846: 	}
 1847:     }
 1848:     return $result;    
 1849: }
 1850: 
 1851: sub show_problem {
 1852:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
 1853:     my $rendered;
 1854:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
 1855:     &Apache::lonxml::remember_problem_counter();
 1856:     if ($mode eq 'both' or $mode eq 'text') {
 1857: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
 1858: 						       $env{'request.course.id'},
 1859: 						       undef,\%form);
 1860:     }
 1861:     if ($removeform) {
 1862: 	$rendered=~s|<form(.*?)>||g;
 1863: 	$rendered=~s|</form>||g;
 1864: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
 1865:     }
 1866:     my $companswer;
 1867:     if ($mode eq 'both' or $mode eq 'answer') {
 1868: 	&Apache::lonxml::restore_problem_counter();
 1869: 	$companswer=
 1870: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
 1871: 						    $env{'request.course.id'},
 1872: 						    %form);
 1873:     }
 1874:     if ($removeform) {
 1875: 	$companswer=~s|<form(.*?)>||g;
 1876: 	$companswer=~s|</form>||g;
 1877: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
 1878:     }
 1879:     $rendered=
 1880:         '<div class="LC_Box">'
 1881:        .'<h3 class="LC_hcell">'.&mt('View of the problem').'</h3>'
 1882:        .$rendered
 1883:        .'</div>';
 1884:     $companswer=
 1885:         '<div class="LC_Box">'
 1886:        .'<h3 class="LC_hcell">'.&mt('Correct answer').'</h3>'
 1887:        .$companswer
 1888:        .'</div>';
 1889:     my $result;
 1890:     if ($mode eq 'both') {
 1891:         $result=$rendered.$companswer;
 1892:     } elsif ($mode eq 'text') {
 1893:         $result=$rendered;
 1894:     } elsif ($mode eq 'answer') {
 1895:         $result=$companswer;
 1896:     }
 1897:     return $result;
 1898: }
 1899: 
 1900: sub files_exist {
 1901:     my ($r, $symb) = @_;
 1902:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1903: 
 1904:     foreach my $student (@students) {
 1905:         my ($uname,$udom,$fullname) = split(/:/,$student);
 1906:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 1907: 					      $udom,$uname);
 1908:         my ($string,$timestamp)= &get_last_submission(\%record);
 1909:         foreach my $submission (@$string) {
 1910:             my ($partid,$respid) =
 1911: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 1912:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
 1913: 					   \%record);
 1914:             return 1 if (@$files);
 1915:         }
 1916:     }
 1917:     return 0;
 1918: }
 1919: 
 1920: sub download_all_link {
 1921:     my ($r,$symb) = @_;
 1922:     my $all_students = 
 1923: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
 1924: 
 1925:     my $parts =
 1926: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
 1927: 
 1928:     my $identifier = &Apache::loncommon::get_cgi_id();
 1929:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
 1930:                              'cgi.'.$identifier.'.symb' => $symb,
 1931:                              'cgi.'.$identifier.'.parts' => $parts,});
 1932:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
 1933: 	      &mt('Download All Submitted Documents').'</a>');
 1934:     return
 1935: }
 1936: 
 1937: sub build_section_inputs {
 1938:     my $section_inputs;
 1939:     if ($env{'form.section'} eq '') {
 1940:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
 1941:     } else {
 1942:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
 1943:         foreach my $section (@sections) {
 1944:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
 1945:         }
 1946:     }
 1947:     return $section_inputs;
 1948: }
 1949: 
 1950: # --------------------------- show submissions of a student, option to grade 
 1951: sub submission {
 1952:     my ($request,$counter,$total) = @_;
 1953:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
 1954:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
 1955:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 1956:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 1957:     my $symb = &get_symb($request); 
 1958:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 1959: 
 1960:     if (!&canview($usec)) {
 1961: 	$request->print('<span class="LC_warning">Unable to view requested student.('.
 1962: 			$uname.':'.$udom.' in section '.$usec.' in course id '.
 1963: 			$env{'request.course.id'}.')</span>');
 1964: 	$request->print(&show_grading_menu_form($symb));
 1965: 	return;
 1966:     }
 1967: 
 1968:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
 1969:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
 1970:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
 1971:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 1972:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1973: 	'" src="'.$request->dir_config('lonIconsURL').
 1974: 	'/check.gif" height="16" border="0" />';
 1975: 
 1976:     my %old_essays;
 1977:     # header info
 1978:     if ($counter == 0) {
 1979: 	&sub_page_js($request);
 1980: 	&sub_page_kw_js($request) if ($env{'form.handgrade'} eq 'yes');
 1981: 	$env{'form.probTitle'} = $env{'form.probTitle'} eq '' ? 
 1982: 	    &Apache::lonnet::gettitle($symb) : $env{'form.probTitle'};
 1983: 	if ($env{'form.handgrade'} eq 'yes' && &files_exist($request, $symb)) {
 1984: 	    &download_all_link($request, $symb);
 1985: 	}
 1986: 	$request->print('<h3>&nbsp;<span class="LC_info">'.&mt('Submission Record').'</span></h3>'."\n".
 1987: 			'<h4>&nbsp;'.&mt('<b>Resource: </b> [_1]',$env{'form.probTitle'}).'</h4>'."\n");
 1988: 
 1989: 	# option to display problem, only once else it cause problems 
 1990:         # with the form later since the problem has a form.
 1991: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
 1992: 	    my $mode;
 1993: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
 1994: 		$mode='both';
 1995: 	    } elsif ($env{'form.vProb'} eq 'yes') {
 1996: 		$mode='text';
 1997: 	    } elsif ($env{'form.vAns'} eq 'yes') {
 1998: 		$mode='answer';
 1999: 	    }
 2000: 	    &Apache::lonxml::clear_problem_counter();
 2001: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 2002: 	}
 2003: 
 2004: 	# kwclr is the only variable that is guaranteed to be non blank 
 2005:         # if this subroutine has been called once.
 2006: 	my %keyhash = ();
 2007: 	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
 2008: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 2009: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 2010: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
 2011: 
 2012: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2013: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 2014: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 2015: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 2016: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 2017: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
 2018: 		$keyhash{$symb.'_subject'} : $env{'form.probTitle'};
 2019: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 2020: 	}
 2021: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 2022: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 2023: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
 2024: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
 2025: 			'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 2026: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
 2027: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
 2028: 			'<input type="hidden" name="probTitle"  value="'.$env{'form.probTitle'}.'" />'."\n".
 2029: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
 2030: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
 2031: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
 2032: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 2033: 			'<input type="hidden" name="showgrading" value="'.$env{'form.showgrading'}.'" />'."\n".
 2034: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 2035: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 2036: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
 2037: 			&build_section_inputs().
 2038: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 2039: 			'<input type="hidden" name="handgrade"  value="'.$env{'form.handgrade'}.'" />'."\n".
 2040: 			'<input type="hidden" name="NCT"'.
 2041: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
 2042: 	if ($env{'form.handgrade'} eq 'yes') {
 2043: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 2044: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 2045: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
 2046: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
 2047: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
 2048: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
 2049: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
 2050: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
 2051: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
 2052: 	    }
 2053: 	}
 2054: 	
 2055: 	my ($cts,$prnmsg) = (1,'');
 2056: 	while ($cts <= $env{'form.savemsgN'}) {
 2057: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
 2058: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
 2059: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
 2060: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
 2061: 		'" />'."\n".
 2062: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
 2063: 	    $cts++;
 2064: 	}
 2065: 	$request->print($prnmsg);
 2066: 
 2067: 	if ($env{'form.handgrade'} eq 'yes' && $env{'form.showgrading'} eq 'yes') {
 2068: #
 2069: # Print out the keyword options line
 2070: #
 2071: 	    $request->print(<<KEYWORDS);
 2072: &nbsp;<b>Keyword Options:</b>&nbsp;
 2073: <a href="javascript:keywords(document.SCORE);" target="_self">List</a>&nbsp; &nbsp;
 2074: <a href="#" onmousedown="javascript:getSel(); return false"
 2075:  CLASS="page">Paste Selection to List</a>&nbsp; &nbsp;
 2076: <a href="javascript:kwhighlight();" target="_self">Highlight Attribute</a><br /><br />
 2077: KEYWORDS
 2078: #
 2079: # Load the other essays for similarity check
 2080: #
 2081:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
 2082: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 2083: 	    $apath=&escape($apath);
 2084: 	    $apath=~s/\W/\_/gs;
 2085: 	    %old_essays=&Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
 2086:         }
 2087:     }
 2088: 
 2089: # This is where output for one specific student would start
 2090:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
 2091:     $request->print(
 2092:         "\n\n"
 2093:        .'<div class="LC_grade_show_user'.$add_class.'">'
 2094:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
 2095:        ."\n"
 2096:     );
 2097: 
 2098:     # Show additional functions if allowed
 2099:     if ($perm{'vgr'}) {
 2100:         $request->print(
 2101:             &Apache::loncommon::track_student_link(
 2102:                 &mt('View recent activity'),
 2103:                 $uname,$udom,'check')
 2104:            .' '
 2105:         );
 2106:     }
 2107:     if ($perm{'opa'}) {
 2108:         $request->print(
 2109:             &Apache::loncommon::pprmlink(
 2110:                 &mt('Set/Change parameters'),
 2111:                 $uname,$udom,$symb,'check'));
 2112:     }
 2113: 
 2114:     # Show Problem
 2115:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
 2116: 	my $mode;
 2117: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
 2118: 	    $mode='both';
 2119: 	} elsif ($env{'form.vProb'} eq 'all' ) {
 2120: 	    $mode='text';
 2121: 	} elsif ($env{'form.vAns'} eq 'all') {
 2122: 	    $mode='answer';
 2123: 	}
 2124: 	&Apache::lonxml::clear_problem_counter();
 2125: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
 2126:     }
 2127: 
 2128:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2129:     my $res_error;
 2130:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2131:     if ($res_error) {
 2132:         $request->print(&navmap_errormsg());
 2133:         return;
 2134:     }
 2135: 
 2136:     # Display student info
 2137:     $request->print(($counter == 0 ? '' : '<br />'));
 2138: 
 2139:     my $result='<div class="LC_Box">'
 2140:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
 2141:     $result.='<input type="hidden" name="name'.$counter.
 2142:              '" value="'.$env{'form.fullname'}.'" />'."\n";
 2143:     if ($env{'form.handgrade'} eq 'no') {
 2144:         $result.='<p class="LC_info">'
 2145:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
 2146:                 ."</p>\n";
 2147:     }
 2148: 
 2149:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
 2150:     my $fullname;
 2151:     my $col_fullnames = [];
 2152:     if ($env{'form.handgrade'} eq 'yes') {
 2153: 	(my $sub_result,$fullname,$col_fullnames)=
 2154: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 2155: 				 $counter);
 2156: 	$result.=$sub_result;
 2157:     }
 2158:     $request->print($result."\n");
 2159: 
 2160:     # print student answer/submission
 2161:     # Options are (1) Handgraded submission only
 2162:     #             (2) Last submission, includes submission that is not handgraded 
 2163:     #                  (for multi-response type part)
 2164:     #             (3) Last submission plus the parts info
 2165:     #             (4) The whole record for this student
 2166:     if ($env{'form.lastSub'} =~ /^(lastonly|hdgrade)$/) {
 2167: 	my ($string,$timestamp)= &get_last_submission(\%record);
 2168: 	
 2169: 	my $lastsubonly;
 2170: 
 2171:         if ($$timestamp eq '') {
 2172:             $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
 2173:         } else {
 2174:             $lastsubonly =
 2175:                 '<div class="LC_grade_submissions_body">'
 2176:                .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
 2177: 
 2178: 	    my %seenparts;
 2179: 	    my @part_response_id = &flatten_responseType($responseType);
 2180: 	    foreach my $part (@part_response_id) {
 2181: 		next if ($env{'form.lastSub'} eq 'hdgrade' 
 2182: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 2183: 
 2184: 		my ($partid,$respid) = @{ $part };
 2185: 		my $display_part=&get_display_part($partid,$symb);
 2186: 		if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 2187: 		    if (exists($seenparts{$partid})) { next; }
 2188: 		    $seenparts{$partid}=1;
 2189: 		    my $submitby='<b>Part:</b> '.$display_part.
 2190: 			' <b>Collaborative submission by:</b> '.
 2191: 			'<a href="javascript:viewSubmitter(\''.
 2192: 			$env{"form.$uname:$udom:$partid:submitted_by"}.
 2193: 			'\');" target="_self">'.
 2194: 			$$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a><br />';
 2195: 		    $request->print($submitby);
 2196: 		    next;
 2197: 		}
 2198: 		my $responsetype = $responseType->{$partid}->{$respid};
 2199: 		if (!exists($record{"resource.$partid.$respid.submission"})) {
 2200:                     $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
 2201:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2202:                         ' <span class="LC_internal_info">'.
 2203:                         '('.&mt('Part ID: [_1]',$respid).')</b>'.
 2204:                         '</span>&nbsp; &nbsp;'.
 2205: 			'<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 2206: 		    next;
 2207: 		}
 2208: 		foreach my $submission (@$string) {
 2209: 		    my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2210: 		    if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
 2211: 		    my ($ressub,$subval) = split(/:/,$submission,2);
 2212: 		    # Similarity check
 2213: 		    my $similar='';
 2214: 		    if($env{'form.checkPlag'}){
 2215: 			my ($oname,$odom,$ocrsid,$oessay,$osim)=
 2216: 			    &most_similar($uname,$udom,$subval,\%old_essays);
 2217: 			if ($osim) {
 2218: 			    $osim=int($osim*100.0);
 2219: 			    my %old_course_desc = 
 2220: 				&Apache::lonnet::coursedescription($ocrsid,
 2221: 								   {'one_time' => 1});
 2222: 
 2223: 			    $similar="<hr /><h3><span class=\"LC_warning\">".
 2224: 				&mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
 2225: 				    $osim,
 2226: 				    &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 2227: 				    $old_course_desc{'description'},
 2228: 				    $old_course_desc{'num'},
 2229: 				    $old_course_desc{'domain'}).
 2230: 				'</span></h3><blockquote><i>'.
 2231: 				&keywords_highlight($oessay).
 2232: 				'</i></blockquote><hr />';
 2233: 			}
 2234: 		    }
 2235: 		    my $order=&get_order($partid,$respid,$symb,$uname,$udom);
 2236: 		    if ($env{'form.lastSub'} eq 'lastonly' || 
 2237: 			($env{'form.lastSub'} eq 'hdgrade' && 
 2238: 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 2239: 			my $display_part=&get_display_part($partid,$symb);
 2240:                         $lastsubonly.='<div class="LC_grade_submission_part">'.
 2241:                             '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2242:                             ' <span class="LC_internal_info">'.
 2243:                             '('.&mt('Part ID: [_1]',$respid).')'.
 2244:                             '</b></span>&nbsp; &nbsp;';
 2245: 			my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
 2246: 			if (@$files) {
 2247: 			    $lastsubonly.='<br /><span class="LC_warning">'.&mt('Like all files provided by users, this file may contain viruses').'</span><br />';
 2248: 			    my $file_counter = 0;
 2249: 			    foreach my $file (@$files) {
 2250: 			        $file_counter++;
 2251: 				&Apache::lonnet::allowuploaded('/adm/grades',$file);
 2252: 				$lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" /> '.$file.'</a>';
 2253: 			    }
 2254: 			    $lastsubonly.='<br />';
 2255: 			}
 2256: 			$lastsubonly.='<b>'.&mt('Submitted Answer:').' </b>'.
 2257: 			    &cleanRecord($subval,$responsetype,$symb,$partid,
 2258: 					 $respid,\%record,$order,undef,$uname,$udom);
 2259: 			if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 2260: 			$lastsubonly.='</div>';
 2261: 		    }
 2262: 		}
 2263: 	    }
 2264: 	    $lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 2265: 	}
 2266: 	$request->print($lastsubonly);
 2267:    } elsif ($env{'form.lastSub'} eq 'datesub') {
 2268: 	my (undef,$responseType,undef,$parts) = &showResourceInfo($symb);
 2269: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
 2270:     } elsif ($env{'form.lastSub'} =~ /^(last|all)$/) {
 2271: 	$request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 2272: 								 $env{'request.course.id'},
 2273: 								 $last,'.submission',
 2274: 								 'Apache::grades::keywords_highlight'));
 2275:     }
 2276: 
 2277:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
 2278: 	.$udom.'" />'."\n");
 2279:     # return if view submission with no grading option
 2280:     if ($env{'form.showgrading'} eq '' || (!&canmodify($usec))) {
 2281: 	my $toGrade.='<input type="button" value="Grade Student" '.
 2282: 	    'onclick="javascript:checksubmit(this.form,\'Grade Student\',\''
 2283: 	    .$counter.'\');" target="_self" /> &nbsp;'."\n" if (&canmodify($usec));
 2284: 	$toGrade.='</div>'."\n";
 2285: 	if (($env{'form.command'} eq 'submission') || 
 2286: 	    ($env{'form.command'} eq 'processGroup' && $counter == $total)) {
 2287: 	    $toGrade.='</form>'.&show_grading_menu_form($symb); 
 2288: 	}
 2289: 	$request->print($toGrade);
 2290: 	return;
 2291:     } else {
 2292: 	$request->print('</div>'."\n");
 2293:     }
 2294: 
 2295:     # essay grading message center
 2296:     if ($env{'form.handgrade'} eq 'yes') {
 2297: 	my $result='<div class="LC_grade_message_center">';
 2298:     
 2299: 	$result.='<div class="LC_grade_message_center_header">'.
 2300: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
 2301: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
 2302: 	my $msgfor = $givenn.' '.$lastname;
 2303: 	if (scalar(@$col_fullnames) > 0) {
 2304: 	    my $lastone = pop(@$col_fullnames);
 2305: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
 2306: 	}
 2307: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
 2308: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
 2309: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 2310: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 2311: 	    ',\''.$msgfor.'\');" target="_self">'.
 2312: 	    &mt('Compose message to student').(scalar(@$col_fullnames) >= 1 ? 's' : '').'</a><label> ('.
 2313: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
 2314: 	    '<img src="'.$request->dir_config('lonIconsURL').
 2315: 	    '/mailbkgrd.gif" width="14" height="10" name="mailicon'.$counter.'" />'."\n".
 2316: 	    '<br />&nbsp;('.
 2317: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 2318: 	$result.='</div></div>';
 2319: 	$request->print($result);
 2320:     }
 2321: 
 2322:     my %seen = ();
 2323:     my @partlist;
 2324:     my @gradePartRespid;
 2325:     my @part_response_id = &flatten_responseType($responseType);
 2326:     $request->print(
 2327:         '<div class="LC_Box">'
 2328:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
 2329:     );
 2330:     $request->print(&gradeBox_start());
 2331:     foreach my $part_response_id (@part_response_id) {
 2332:     	my ($partid,$respid) = @{ $part_response_id };
 2333: 	my $part_resp = join('_',@{ $part_response_id });
 2334: 	next if ($seen{$partid} > 0);
 2335: 	$seen{$partid}++;
 2336: 	next if ($$handgrade{$part_resp} ne 'yes' 
 2337: 		 && $env{'form.lastSub'} eq 'hdgrade');
 2338: 	push(@partlist,$partid);
 2339: 	push(@gradePartRespid,$partid.'.'.$respid);
 2340: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
 2341:     }
 2342:     $request->print(&gradeBox_end()); # </div>
 2343:     $request->print('</div>');
 2344: 
 2345:     $request->print('<div class="LC_grade_info_links">');
 2346:     $request->print('</div>');
 2347: 
 2348:     $result='<input type="hidden" name="partlist'.$counter.
 2349: 	'" value="'.(join ":",@partlist).'" />'."\n";
 2350:     $result.='<input type="hidden" name="gradePartRespid'.
 2351: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
 2352:     my $ctr = 0;
 2353:     while ($ctr < scalar(@partlist)) {
 2354: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
 2355: 	    $partlist[$ctr].'" />'."\n";
 2356: 	$ctr++;
 2357:     }
 2358:     $request->print($result.''."\n");
 2359: 
 2360: # Done with printing info for one student
 2361: 
 2362:     $request->print('</div>');#LC_grade_show_user
 2363: 
 2364: 
 2365:     # print end of form
 2366:     if ($counter == $total) {
 2367:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
 2368: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
 2369: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
 2370: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
 2371: 	my $ntstu ='<select name="NTSTU">'.
 2372: 	    '<option>1</option><option>2</option>'.
 2373: 	    '<option>3</option><option>5</option>'.
 2374: 	    '<option>7</option><option>10</option></select>'."\n";
 2375: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
 2376: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
 2377:         $endform.=&mt('[_1]student(s)',$ntstu);
 2378: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
 2379: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
 2380: 	    '<input type="button" value="'.&mt('Next').'" '.
 2381: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
 2382:         $endform.='<span class="LC_warning">'.
 2383:                   &mt('(Next and Previous (student) do not save the scores.)').
 2384:                   '</span>'."\n" ;
 2385:         $endform.="<input type='hidden' value='".&get_increment().
 2386:             "' name='increment' />";
 2387: 	$endform.='</td></tr></table></form>';
 2388: 	$endform.=&show_grading_menu_form($symb);
 2389: 	$request->print($endform);
 2390:     }
 2391:     return '';
 2392: }
 2393: 
 2394: sub check_collaborators {
 2395:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
 2396:     my ($result,@col_fullnames);
 2397:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
 2398:     foreach my $part (keys(%$handgrade)) {
 2399: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
 2400: 					'.maxcollaborators',
 2401: 					$symb,$udom,$uname);
 2402: 	next if ($ncol <= 0);
 2403: 	$part =~ s/\_/\./g;
 2404: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
 2405: 	my (@good_collaborators, @bad_collaborators);
 2406: 	foreach my $possible_collaborator
 2407: 	    (split(/,?\s+/,$record->{'resource.'.$part.'.collaborators'})) { 
 2408: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
 2409: 	    next if ($possible_collaborator eq '');
 2410: 	    my ($co_name,$co_dom) = split(/\@|:/,$possible_collaborator);
 2411: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
 2412: 	    next if ($co_name eq $uname && $co_dom eq $udom);
 2413: 	    # Doing this grep allows 'fuzzy' specification
 2414: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
 2415: 			       keys(%$classlist));
 2416: 	    if (! scalar(@matches)) {
 2417: 		push(@bad_collaborators, $possible_collaborator);
 2418: 	    } else {
 2419: 		push(@good_collaborators, @matches);
 2420: 	    }
 2421: 	}
 2422: 	if (scalar(@good_collaborators) != 0) {
 2423: 	    $result.='<br />'.&mt('Collaborators: ');
 2424: 	    foreach my $name (@good_collaborators) {
 2425: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
 2426: 		push(@col_fullnames, $givenn.' '.$lastname);
 2427: 		$result.=$fullname->{$name}.'&nbsp; &nbsp; &nbsp;';
 2428: 	    }
 2429: 	    $result.='<br />'."\n";
 2430: 	    my ($part)=split(/\./,$part);
 2431: 	    $result.='<input type="hidden" name="collaborator'.$counter.
 2432: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
 2433: 		"\n";
 2434: 	}
 2435: 	if (scalar(@bad_collaborators) > 0) {
 2436: 	    $result.='<div class="LC_warning">';
 2437: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
 2438: 	    $result .= '</div>';
 2439: 	}         
 2440: 	if (scalar(@bad_collaborators > $ncol)) {
 2441: 	    $result .= '<div class="LC_warning">';
 2442: 	    $result .= &mt('This student has submitted too many '.
 2443: 		'collaborators.  Maximum is [_1].',$ncol);
 2444: 	    $result .= '</div>';
 2445: 	}
 2446:     }
 2447:     return ($result,$fullname,\@col_fullnames);
 2448: }
 2449: 
 2450: #--- Retrieve the last submission for all the parts
 2451: sub get_last_submission {
 2452:     my ($returnhash)=@_;
 2453:     my (@string,$timestamp);
 2454:     if ($$returnhash{'version'}) {
 2455: 	my %lasthash=();
 2456: 	my ($version);
 2457: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
 2458: 	    foreach my $key (sort(split(/\:/,
 2459: 					$$returnhash{$version.':keys'}))) {
 2460: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
 2461: 		$timestamp = 
 2462: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 2463: 	    }
 2464: 	}
 2465: 	foreach my $key (keys(%lasthash)) {
 2466: 	    next if ($key !~ /\.submission$/);
 2467: 
 2468: 	    my ($partid,$foo) = split(/submission$/,$key);
 2469: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
 2470: 		'<span class="LC_warning">Draft Copy</span> ' : '';
 2471: 	    push(@string, join(':', $key, $draft.$lasthash{$key}));
 2472: 	}
 2473:     }
 2474:     if (!@string) {
 2475: 	$string[0] =
 2476: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
 2477:     }
 2478:     return (\@string,\$timestamp);
 2479: }
 2480: 
 2481: #--- High light keywords, with style choosen by user.
 2482: sub keywords_highlight {
 2483:     my $string    = shift;
 2484:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
 2485:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
 2486:     (my $styleoff = $styleon) =~ s/\</\<\//;
 2487:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
 2488:     foreach my $keyword (@keylist) {
 2489: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
 2490:     }
 2491:     return $string;
 2492: }
 2493: 
 2494: #--- Called from submission routine
 2495: sub processHandGrade {
 2496:     my ($request) = shift;
 2497:     my $symb   = &get_symb($request);
 2498:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2499:     my $button = $env{'form.gradeOpt'};
 2500:     my $ngrade = $env{'form.NCT'};
 2501:     my $ntstu  = $env{'form.NTSTU'};
 2502:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2503:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
 2504: 
 2505:     if ($button eq 'Save & Next') {
 2506: 	my $ctr = 0;
 2507: 	while ($ctr < $ngrade) {
 2508: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 2509: 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 2510: 	    if ($errorflag eq 'no_score') {
 2511: 		$ctr++;
 2512: 		next;
 2513: 	    }
 2514: 	    if ($errorflag eq 'not_allowed') {
 2515: 		$request->print("<span class=\"LC_warning\">Not allowed to modify grades for $uname:$udom</span>");
 2516: 		$ctr++;
 2517: 		next;
 2518: 	    }
 2519: 	    my $includemsg = $env{'form.includemsg'.$ctr};
 2520: 	    my ($subject,$message,$msgstatus) = ('','','');
 2521: 	    my $restitle = &Apache::lonnet::gettitle($symb);
 2522:             my ($feedurl,$showsymb) =
 2523: 		&get_feedurl_and_symb($symb,$uname,$udom);
 2524: 	    my $messagetail;
 2525: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
 2526: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
 2527: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
 2528: 		$subject.=' ['.$restitle.']';
 2529: 		my (@msgnum) = split(/,/,$includemsg);
 2530: 		foreach (@msgnum) {
 2531: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
 2532: 		}
 2533: 		$message =&Apache::lonfeedback::clear_out_html($message);
 2534: 		if ($env{'form.withgrades'.$ctr}) {
 2535: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
 2536: 		    $messagetail = " for <a href=\"".
 2537: 		                   $feedurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2538: 		}
 2539: 		$msgstatus = 
 2540:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
 2541: 						     $message.$messagetail,
 2542:                                                      undef,$feedurl,undef,
 2543:                                                      undef,undef,$showsymb,
 2544:                                                      $restitle);
 2545: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
 2546: 				$msgstatus);
 2547: 	    }
 2548: 	    if ($env{'form.collaborator'.$ctr}) {
 2549: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
 2550: 		foreach my $collabstr (@collabstrs) {
 2551: 		    my ($part,@collaborators) = split(/:/,$collabstr);
 2552: 		    foreach my $collaborator (@collaborators) {
 2553: 			my ($errorflag,$pts,$wgt) = 
 2554: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
 2555: 					   $env{'form.unamedom'.$ctr},$part);
 2556: 			if ($errorflag eq 'not_allowed') {
 2557: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 2558: 			    next;
 2559: 			} elsif ($message ne '') {
 2560: 			    my ($baseurl,$showsymb) = 
 2561: 				&get_feedurl_and_symb($symb,$collaborator,
 2562: 						      $udom);
 2563: 			    if ($env{'form.withgrades'.$ctr}) {
 2564: 				$messagetail = " for <a href=\"".
 2565:                                     $baseurl."?symb=$showsymb\">$env{'form.probTitle'}</a>";
 2566: 			    }
 2567: 			    $msgstatus = 
 2568: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 2569: 			}
 2570: 		    }
 2571: 		}
 2572: 	    }
 2573: 	    $ctr++;
 2574: 	}
 2575:     }
 2576: 
 2577:     if ($env{'form.handgrade'} eq 'yes') {
 2578: 	# Keywords sorted in alphabatical order
 2579: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2580: 	my %keyhash = ();
 2581: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
 2582: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
 2583: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 2584: 	$env{'form.keywords'} = join(' ',@keywords);
 2585: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
 2586: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
 2587: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 2588: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 2589: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
 2590: 
 2591: 	# message center - Order of message gets changed. Blank line is eliminated.
 2592: 	# New messages are saved in env for the next student.
 2593: 	# All messages are saved in nohist_handgrade.db
 2594: 	my ($ctr,$idx) = (1,1);
 2595: 	while ($ctr <= $env{'form.savemsgN'}) {
 2596: 	    if ($env{'form.savemsg'.$ctr} ne '') {
 2597: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
 2598: 		$idx++;
 2599: 	    }
 2600: 	    $ctr++;
 2601: 	}
 2602: 	$ctr = 0;
 2603: 	while ($ctr < $ngrade) {
 2604: 	    if ($env{'form.newmsg'.$ctr} ne '') {
 2605: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2606: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2607: 		$idx++;
 2608: 	    }
 2609: 	    $ctr++;
 2610: 	}
 2611: 	$env{'form.savemsgN'} = --$idx;
 2612: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
 2613: 	my $putresult = &Apache::lonnet::put
 2614: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
 2615:     }
 2616:     # Called by Save & Refresh from Highlight Attribute Window
 2617:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 2618:     if ($env{'form.refresh'} eq 'on') {
 2619: 	my ($ctr,$total) = (0,0);
 2620: 	while ($ctr < $ngrade) {
 2621: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
 2622: 	    $ctr++;
 2623: 	}
 2624: 	$env{'form.NTSTU'}=$ngrade;
 2625: 	$ctr = 0;
 2626: 	while ($ctr < $total) {
 2627: 	    my $processUser = $env{'form.unamedom'.$ctr};
 2628: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2629: 	    $env{'form.fullname'} = $$fullname{$processUser};
 2630: 	    &submission($request,$ctr,$total-1);
 2631: 	    $ctr++;
 2632: 	}
 2633: 	return '';
 2634:     }
 2635: 
 2636: # Go directly to grade student - from submission or link from chart page
 2637:     if ($button eq 'Grade Student') {
 2638: 	(undef,undef,$env{'form.handgrade'},undef,undef) = &showResourceInfo($symb);
 2639: 	my $processUser = $env{'form.unamedom'.$env{'form.studentNo'}};
 2640: 	($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2641: 	$env{'form.fullname'} = $$fullname{$processUser};
 2642: 	&submission($request,0,0);
 2643: 	return '';
 2644:     }
 2645: 
 2646:     # Get the next/previous one or group of students
 2647:     my $firststu = $env{'form.unamedom0'};
 2648:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
 2649:     my $ctr = 2;
 2650:     while ($laststu eq '') {
 2651: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
 2652: 	$ctr++;
 2653: 	$laststu = $firststu if ($ctr > $ngrade);
 2654:     }
 2655: 
 2656:     my (@parsedlist,@nextlist);
 2657:     my ($nextflg) = 0;
 2658:     foreach my $item (sort 
 2659: 	     {
 2660: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 2661: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 2662: 		 }
 2663: 		 return $a cmp $b;
 2664: 	     } (keys(%$fullname))) {
 2665: 	if ($nextflg == 1 && $button =~ /Next$/) {
 2666: 	    push(@parsedlist,$item);
 2667: 	}
 2668: 	$nextflg = 1 if ($item eq $laststu);
 2669: 	if ($button eq 'Previous') {
 2670: 	    last if ($item eq $firststu);
 2671: 	    push(@parsedlist,$item);
 2672: 	}
 2673:     }
 2674:     $ctr = 0;
 2675:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
 2676:     my $res_error;
 2677:     my ($partlist) = &response_type($symb,\$res_error);
 2678:     if ($res_error) {
 2679:         $request->print(&navmap_errormsg());
 2680:         return;
 2681:     }
 2682:     foreach my $student (@parsedlist) {
 2683: 	my $submitonly=$env{'form.submitonly'};
 2684: 	my ($uname,$udom) = split(/:/,$student);
 2685: 	
 2686: 	if ($submitonly eq 'queued') {
 2687: 	    my %queue_status = 
 2688: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 2689: 							$udom,$uname);
 2690: 	    next if (!defined($queue_status{'gradingqueue'}));
 2691: 	}
 2692: 
 2693: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
 2694: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2695: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
 2696: 	    my $submitted = 0;
 2697: 	    my $ungraded = 0;
 2698: 	    my $incorrect = 0;
 2699: 	    foreach my $item (keys(%status)) {
 2700: 		$submitted = 1 if ($status{$item} ne 'nothing');
 2701: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
 2702: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
 2703: 		my ($foo,$partid,$foo1) = split(/\./,$item);
 2704: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 2705: 		    $submitted = 0;
 2706: 		}
 2707: 	    }
 2708: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 2709: 				     $submitonly eq 'incorrect' ||
 2710: 				     $submitonly eq 'graded'));
 2711: 	    next if (!$ungraded && ($submitonly eq 'graded'));
 2712: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 2713: 	}
 2714: 	push(@nextlist,$student) if ($ctr < $ntstu);
 2715: 	last if ($ctr == $ntstu);
 2716: 	$ctr++;
 2717:     }
 2718: 
 2719:     $ctr = 0;
 2720:     my $total = scalar(@nextlist)-1;
 2721: 
 2722:     foreach (sort(@nextlist)) {
 2723: 	my ($uname,$udom,$submitter) = split(/:/);
 2724: 	$env{'form.student'}  = $uname;
 2725: 	$env{'form.userdom'}  = $udom;
 2726: 	$env{'form.fullname'} = $$fullname{$_};
 2727: 	&submission($request,$ctr,$total);
 2728: 	$ctr++;
 2729:     }
 2730:     if ($total < 0) {
 2731: 	my $the_end = '<h3><span class="LC_info">'.&mt('LON-CAPA User Message').'</span></h3><br />'."\n";
 2732: 	$the_end.=&mt('<b>Message: </b> No more students for this section or class.').'<br /><br />'."\n";
 2733: 	$the_end.=&mt('Click on the button below to return to the grading menu.').'<br /><br />'."\n";
 2734: 	$the_end.=&show_grading_menu_form($symb);
 2735: 	$request->print($the_end);
 2736:     }
 2737:     return '';
 2738: }
 2739: 
 2740: #---- Save the score and award for each student, if changed
 2741: sub saveHandGrade {
 2742:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 2743:     my @version_parts;
 2744:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 2745: 					   $env{'request.course.id'});
 2746:     if (!&canmodify($usec)) { return('not_allowed'); }
 2747:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
 2748:     my @parts_graded;
 2749:     my %newrecord  = ();
 2750:     my ($pts,$wgt) = ('','');
 2751:     my %aggregate = ();
 2752:     my $aggregateflag = 0;
 2753:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
 2754:     foreach my $new_part (@parts) {
 2755: 	#collaborator ($submi may vary for different parts
 2756: 	if ($submitter && $new_part ne $part) { next; }
 2757: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
 2758: 	if ($dropMenu eq 'excused') {
 2759: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 2760: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 2761: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 2762: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 2763: 		}
 2764: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 2765: 	    }
 2766: 	} elsif ($dropMenu eq 'reset status'
 2767: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
 2768: 	    foreach my $key (keys(%record)) {
 2769: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
 2770: 	    }
 2771: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 2772: 		"$env{'user.name'}:$env{'user.domain'}";
 2773:             my $totaltries = $record{'resource.'.$part.'.tries'};
 2774: 
 2775:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 2776: 					       [$new_part]);
 2777:             my $aggtries =$totaltries;
 2778:             if ($last_resets{$new_part}) {
 2779:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
 2780: 					   $new_part);
 2781:             }
 2782: 
 2783:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
 2784:             if ($aggtries > 0) {
 2785:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 2786:                 $aggregateflag = 1;
 2787:             }
 2788: 	} elsif ($dropMenu eq '') {
 2789: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 2790: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
 2791: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
 2792: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
 2793: 		next;
 2794: 	    }
 2795: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 2796: 		$env{'form.WGT'.$newflg.'_'.$new_part};
 2797: 	    my $partial= $pts/$wgt;
 2798: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 2799: 		#do not update score for part if not changed.
 2800:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 2801: 		next;
 2802: 	    } else {
 2803: 	        push(@parts_graded,$new_part);
 2804: 	    }
 2805: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 2806: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
 2807: 	    }
 2808: 	    my $reckey = 'resource.'.$new_part.'.solved';
 2809: 	    if ($partial == 0) {
 2810: 		if ($record{$reckey} ne 'incorrect_by_override') {
 2811: 		    $newrecord{$reckey} = 'incorrect_by_override';
 2812: 		}
 2813: 	    } else {
 2814: 		if ($record{$reckey} ne 'correct_by_override') {
 2815: 		    $newrecord{$reckey} = 'correct_by_override';
 2816: 		}
 2817: 	    }	    
 2818: 	    if ($submitter && 
 2819: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
 2820: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
 2821: 	    }
 2822: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 2823: 		"$env{'user.name'}:$env{'user.domain'}";
 2824: 	}
 2825: 	# unless problem has been graded, set flag to version the submitted files
 2826: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
 2827: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
 2828: 	        $dropMenu eq 'reset status')
 2829: 	   {
 2830: 	    push(@version_parts,$new_part);
 2831: 	}
 2832:     }
 2833:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2834:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 2835: 
 2836:     if (%newrecord) {
 2837:         if (@version_parts) {
 2838:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
 2839:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
 2840: 	    @newrecord{@changed_keys} = @record{@changed_keys};
 2841: 	    foreach my $new_part (@version_parts) {
 2842: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
 2843: 				$new_part,\%newrecord);
 2844: 	    }
 2845:         }
 2846: 	&Apache::lonnet::cstore(\%newrecord,$symb,
 2847: 				$env{'request.course.id'},$domain,$stuname);
 2848: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
 2849: 				     $cdom,$cnum,$domain,$stuname);
 2850:     }
 2851:     if ($aggregateflag) {
 2852:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 2853: 			      $cdom,$cnum);
 2854:     }
 2855:     return ('',$pts,$wgt);
 2856: }
 2857: 
 2858: sub check_and_remove_from_queue {
 2859:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
 2860:     my @ungraded_parts;
 2861:     foreach my $part (@{$parts}) {
 2862: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
 2863: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
 2864: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 2865: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 2866: 		) {
 2867: 	    push(@ungraded_parts, $part);
 2868: 	}
 2869:     }
 2870:     if ( !@ungraded_parts ) {
 2871: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
 2872: 					       $cnum,$domain,$stuname);
 2873:     }
 2874: }
 2875: 
 2876: sub handback_files {
 2877:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
 2878:     my $portfolio_root = '/userfiles/portfolio';
 2879:     my $res_error;
 2880:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2881:     if ($res_error) {
 2882:         $request->print('<br />'.&navmap_errormsg().'<br />');
 2883:         return;
 2884:     }
 2885:     my @part_response_id = &flatten_responseType($responseType);
 2886:     foreach my $part_response_id (@part_response_id) {
 2887:     	my ($part_id,$resp_id) = @{ $part_response_id };
 2888: 	my $part_resp = join('_',@{ $part_response_id });
 2889:             if (($env{'form.'.$newflg.'_'.$part_resp.'_returndoc1'}) && ($new_part == $part_id)) {
 2890:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3'
 2891:                 my $file_counter = 1;
 2892: 		my $file_msg;
 2893:                 while ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter}) {
 2894:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$file_counter.'.filename'};
 2895:                     my ($directory,$answer_file) = 
 2896:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter} =~ /^(.*?)([^\/]*)$/);
 2897:                     my ($answer_name,$answer_ver,$answer_ext) =
 2898: 		        &file_name_version_ext($answer_file);
 2899: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
 2900:                     my $getpropath = 1;
 2901: 		    my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,$domain,$stuname,$getpropath);
 2902: 		    my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
 2903:                     # fix file name
 2904:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
 2905:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
 2906:             	                                $newflg.'_'.$part_resp.'_returndoc'.$file_counter,
 2907:             	                                $save_file_name);
 2908:                     if ($result !~ m|^/uploaded/|) {
 2909:                         $request->print('<br /><span class="LC_error">'.
 2910:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
 2911:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$file_counter).
 2912:                                         '</span>');
 2913:                     } else {
 2914:                         # mark the file as read only
 2915:                         my @files = ($save_file_name);
 2916:                         my @what = ($symb,$env{'request.course.id'},'handback');
 2917:                         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@files,\@what);
 2918: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 2919: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 2920: 			}
 2921:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
 2922: 			$file_msg.= "\n".'<br /><span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span><br />";
 2923: 
 2924:                     }
 2925:                     $request->print("<br />".$fname." will be the uploaded file name");
 2926:                     $request->print(" ".$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$file_counter});
 2927:                     $file_counter++;
 2928:                 }
 2929: 		my $subject = "File Handed Back by Instructor ";
 2930: 		my $message = "A file has been returned that was originally submitted in reponse to: <br />";
 2931: 		$message .= "<strong>".&Apache::lonnet::gettitle($symb)."</strong><br />";
 2932: 		$message .= ' The returned file(s) are named: '. $file_msg;
 2933: 		$message .= " and can be found in your portfolio space.";
 2934: 		my ($feedurl,$showsymb) = 
 2935: 		    &get_feedurl_and_symb($symb,$domain,$stuname);
 2936:                 my $restitle = &Apache::lonnet::gettitle($symb);
 2937: 		my $msgstatus = 
 2938:                    &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject.
 2939: 			 ' (File Returned) ['.$restitle.']',$message,undef,
 2940:                          $feedurl,undef,undef,undef,$showsymb,$restitle);
 2941:             }
 2942:         }
 2943:     return;
 2944: }
 2945: 
 2946: sub get_feedurl_and_symb {
 2947:     my ($symb,$uname,$udom) = @_;
 2948:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2949:     $url = &Apache::lonnet::clutter($url);
 2950:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
 2951: 					$symb,$udom,$uname);
 2952:     if ($encrypturl =~ /^yes$/i) {
 2953: 	&Apache::lonenc::encrypted(\$url,1);
 2954: 	&Apache::lonenc::encrypted(\$symb,1);
 2955:     }
 2956:     return ($url,$symb);
 2957: }
 2958: 
 2959: sub get_submitted_files {
 2960:     my ($udom,$uname,$partid,$respid,$record) = @_;
 2961:     my @files;
 2962:     if ($$record{"resource.$partid.$respid.portfiles"}) {
 2963:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
 2964:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
 2965:     	    push(@files,$file_url.$file);
 2966:         }
 2967:     }
 2968:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
 2969:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
 2970:     }
 2971:     return (\@files);
 2972: }
 2973: 
 2974: # ----------- Provides number of tries since last reset.
 2975: sub get_num_tries {
 2976:     my ($record,$last_reset,$part) = @_;
 2977:     my $timestamp = '';
 2978:     my $num_tries = 0;
 2979:     if ($$record{'version'}) {
 2980:         for (my $version=$$record{'version'};$version>=1;$version--) {
 2981:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
 2982:                 $timestamp = $$record{$version.':timestamp'};
 2983:                 if ($timestamp > $last_reset) {
 2984:                     $num_tries ++;
 2985:                 } else {
 2986:                     last;
 2987:                 }
 2988:             }
 2989:         }
 2990:     }
 2991:     return $num_tries;
 2992: }
 2993: 
 2994: # ----------- Determine decrements required in aggregate totals 
 2995: sub decrement_aggs {
 2996:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
 2997:     my %decrement = (
 2998:                         attempts => 0,
 2999:                         users => 0,
 3000:                         correct => 0
 3001:                     );
 3002:     $decrement{'attempts'} = $aggtries;
 3003:     if ($solvedstatus =~ /^correct/) {
 3004:         $decrement{'correct'} = 1;
 3005:     }
 3006:     if ($aggtries == $totaltries) {
 3007:         $decrement{'users'} = 1;
 3008:     }
 3009:     foreach my $type (keys(%decrement)) {
 3010:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
 3011:     }
 3012:     return;
 3013: }
 3014: 
 3015: # ----------- Determine timestamps for last reset of aggregate totals for parts  
 3016: sub get_last_resets {
 3017:     my ($symb,$courseid,$partids) =@_;
 3018:     my %last_resets;
 3019:     my $cdom = $env{'course.'.$courseid.'.domain'};
 3020:     my $cname = $env{'course.'.$courseid.'.num'};
 3021:     my @keys;
 3022:     foreach my $part (@{$partids}) {
 3023: 	push(@keys,"$symb\0$part\0resettime");
 3024:     }
 3025:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
 3026: 				     $cdom,$cname);
 3027:     foreach my $part (@{$partids}) {
 3028: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
 3029:     }
 3030:     return %last_resets;
 3031: }
 3032: 
 3033: # ----------- Handles creating versions for portfolio files as answers
 3034: sub version_portfiles {
 3035:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
 3036:     my $version_parts = join('|',@$v_flag);
 3037:     my @returned_keys;
 3038:     my $parts = join('|', @$parts_graded);
 3039:     my $portfolio_root = '/userfiles/portfolio';
 3040:     foreach my $key (keys(%$record)) {
 3041:         my $new_portfiles;
 3042:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
 3043:             my @versioned_portfiles;
 3044:             my @portfiles = split(/\s*,\s*/,$$record{$key});
 3045:             foreach my $file (@portfiles) {
 3046:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
 3047:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
 3048: 		my ($answer_name,$answer_ver,$answer_ext) =
 3049: 		    &file_name_version_ext($answer_file);
 3050:                 my $getpropath = 1;    
 3051:                 my @dir_list = &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,$stu_name,$getpropath);
 3052:                 my $version = &get_next_version($answer_name, $answer_ext, \@dir_list);
 3053:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
 3054:                 if ($new_answer ne 'problem getting file') {
 3055:                     push(@versioned_portfiles, $directory.$new_answer);
 3056:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
 3057:                         [$directory.$new_answer],
 3058:                         [$symb,$env{'request.course.id'},'graded']);
 3059:                 }
 3060:             }
 3061:             $$record{$key} = join(',',@versioned_portfiles);
 3062:             push(@returned_keys,$key);
 3063:         }
 3064:     } 
 3065:     return (@returned_keys);   
 3066: }
 3067: 
 3068: sub get_next_version {
 3069:     my ($answer_name, $answer_ext, $dir_list) = @_;
 3070:     my $version;
 3071:     foreach my $row (@$dir_list) {
 3072:         my ($file) = split(/\&/,$row,2);
 3073:         my ($file_name,$file_version,$file_ext) =
 3074: 	    &file_name_version_ext($file);
 3075:         if (($file_name eq $answer_name) && 
 3076: 	    ($file_ext eq $answer_ext)) {
 3077:                 # gets here if filename and extension match, regardless of version
 3078:                 if ($file_version ne '') {
 3079:                 # a versioned file is found  so save it for later
 3080:                 if ($file_version > $version) {
 3081: 		    $version = $file_version;
 3082: 	        }
 3083:             }
 3084:         }
 3085:     } 
 3086:     $version ++;
 3087:     return($version);
 3088: }
 3089: 
 3090: sub version_selected_portfile {
 3091:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
 3092:     my ($answer_name,$answer_ver,$answer_ext) =
 3093:         &file_name_version_ext($file_name);
 3094:     my $new_answer;
 3095:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
 3096:     if($env{'form.copy'} eq '-1') {
 3097:         $new_answer = 'problem getting file';
 3098:     } else {
 3099:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
 3100:         my $copy_result = &Apache::lonnet::finishuserfileupload(
 3101:                             $stu_name,$domain,'copy',
 3102: 		        '/portfolio'.$directory.$new_answer);
 3103:     }    
 3104:     return ($new_answer);
 3105: }
 3106: 
 3107: sub file_name_version_ext {
 3108:     my ($file)=@_;
 3109:     my @file_parts = split(/\./, $file);
 3110:     my ($name,$version,$ext);
 3111:     if (@file_parts > 1) {
 3112: 	$ext=pop(@file_parts);
 3113: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
 3114: 	    $version=pop(@file_parts);
 3115: 	}
 3116: 	$name=join('.',@file_parts);
 3117:     } else {
 3118: 	$name=join('.',@file_parts);
 3119:     }
 3120:     return($name,$version,$ext);
 3121: }
 3122: 
 3123: #--------------------------------------------------------------------------------------
 3124: #
 3125: #-------------------------- Next few routines handles grading by section or whole class
 3126: #
 3127: #--- Javascript to handle grading by section or whole class
 3128: sub viewgrades_js {
 3129:     my ($request) = shift;
 3130: 
 3131:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 3132:     $request->print(<<VIEWJAVASCRIPT);
 3133: <script type="text/javascript" language="javascript">
 3134:    function writePoint(partid,weight,point) {
 3135: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3136: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3137: 	if (point == "textval") {
 3138: 	    point = document.classgrade["TEXTVAL_"+partid].value;
 3139: 	    if (isNaN(point) || parseFloat(point) < 0) {
 3140: 		alert("$alertmsg"+parseFloat(point));
 3141: 		var resetbox = false;
 3142: 		for (var i=0; i<radioButton.length; i++) {
 3143: 		    if (radioButton[i].checked) {
 3144: 			textbox.value = i;
 3145: 			resetbox = true;
 3146: 		    }
 3147: 		}
 3148: 		if (!resetbox) {
 3149: 		    textbox.value = "";
 3150: 		}
 3151: 		return;
 3152: 	    }
 3153: 	    if (parseFloat(point) > parseFloat(weight)) {
 3154: 		var resp = confirm("You entered a value ("+parseFloat(point)+
 3155: 				   ") greater than the weight for the part. Accept?");
 3156: 		if (resp == false) {
 3157: 		    textbox.value = "";
 3158: 		    return;
 3159: 		}
 3160: 	    }
 3161: 	    for (var i=0; i<radioButton.length; i++) {
 3162: 		radioButton[i].checked=false;
 3163: 		if (parseFloat(point) == i) {
 3164: 		    radioButton[i].checked=true;
 3165: 		}
 3166: 	    }
 3167: 
 3168: 	} else {
 3169: 	    textbox.value = parseFloat(point);
 3170: 	}
 3171: 	for (i=0;i<document.classgrade.total.value;i++) {
 3172: 	    var user = document.classgrade["ctr"+i].value;
 3173: 	    user = user.replace(new RegExp(':', 'g'),"_");
 3174: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3175: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3176: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3177: 	    if (saveval != "correct") {
 3178: 		scorename.value = point;
 3179: 		if (selname[0].selected != true) {
 3180: 		    selname[0].selected = true;
 3181: 		}
 3182: 	    }
 3183: 	}
 3184: 	document.classgrade["SELVAL_"+partid][0].selected = true;
 3185:     }
 3186: 
 3187:     function writeRadText(partid,weight) {
 3188: 	var selval   = document.classgrade["SELVAL_"+partid];
 3189: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3190:         var override = document.classgrade["FORCE_"+partid].checked;
 3191: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3192: 	if (selval[1].selected || selval[2].selected) {
 3193: 	    for (var i=0; i<radioButton.length; i++) {
 3194: 		radioButton[i].checked=false;
 3195: 
 3196: 	    }
 3197: 	    textbox.value = "";
 3198: 
 3199: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3200: 		var user = document.classgrade["ctr"+i].value;
 3201: 		user = user.replace(new RegExp(':', 'g'),"_");
 3202: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3203: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3204: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3205: 		if ((saveval != "correct") || override) {
 3206: 		    scorename.value = "";
 3207: 		    if (selval[1].selected) {
 3208: 			selname[1].selected = true;
 3209: 		    } else {
 3210: 			selname[2].selected = true;
 3211: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
 3212: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
 3213: 		    }
 3214: 		}
 3215: 	    }
 3216: 	} else {
 3217: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3218: 		var user = document.classgrade["ctr"+i].value;
 3219: 		user = user.replace(new RegExp(':', 'g'),"_");
 3220: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3221: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3222: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3223: 		if ((saveval != "correct") || override) {
 3224: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3225: 		    selname[0].selected = true;
 3226: 		}
 3227: 	    }
 3228: 	}	    
 3229:     }
 3230: 
 3231:     function changeSelect(partid,user) {
 3232: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3233: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
 3234: 	var point  = textbox.value;
 3235: 	var weight = document.classgrade["weight_"+partid].value;
 3236: 
 3237: 	if (isNaN(point) || parseFloat(point) < 0) {
 3238: 	    alert("$alertmsg"+parseFloat(point));
 3239: 	    textbox.value = "";
 3240: 	    return;
 3241: 	}
 3242: 	if (parseFloat(point) > parseFloat(weight)) {
 3243: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
 3244: 			       ") greater than the weight of the part. Accept?");
 3245: 	    if (resp == false) {
 3246: 		textbox.value = "";
 3247: 		return;
 3248: 	    }
 3249: 	}
 3250: 	selval[0].selected = true;
 3251:     }
 3252: 
 3253:     function changeOneScore(partid,user) {
 3254: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3255: 	if (selval[1].selected || selval[2].selected) {
 3256: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
 3257: 	    if (selval[2].selected) {
 3258: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
 3259: 	    }
 3260:         }
 3261:     }
 3262: 
 3263:     function resetEntry(numpart) {
 3264: 	for (ctpart=0;ctpart<numpart;ctpart++) {
 3265: 	    var partid = document.classgrade["partid_"+ctpart].value;
 3266: 	    var radioButton = document.classgrade["RADVAL_"+partid];
 3267: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
 3268: 	    var selval  = document.classgrade["SELVAL_"+partid];
 3269: 	    for (var i=0; i<radioButton.length; i++) {
 3270: 		radioButton[i].checked=false;
 3271: 
 3272: 	    }
 3273: 	    textbox.value = "";
 3274: 	    selval[0].selected = true;
 3275: 
 3276: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3277: 		var user = document.classgrade["ctr"+i].value;
 3278: 		user = user.replace(new RegExp(':', 'g'),"_");
 3279: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3280: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3281: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
 3282: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
 3283: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3284: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3285: 		if (saveselval == "excused") {
 3286: 		    if (selname[1].selected == false) { selname[1].selected = true;}
 3287: 		} else {
 3288: 		    if (selname[0].selected == false) {selname[0].selected = true};
 3289: 		}
 3290: 	    }
 3291: 	}
 3292:     }
 3293: 
 3294: </script>
 3295: VIEWJAVASCRIPT
 3296: }
 3297: 
 3298: #--- show scores for a section or whole class w/ option to change/update a score
 3299: sub viewgrades {
 3300:     my ($request) = shift;
 3301:     &viewgrades_js($request);
 3302: 
 3303:     my ($symb) = &get_symb($request);
 3304:     #need to make sure we have the correct data for later EXT calls, 
 3305:     #thus invalidate the cache
 3306:     &Apache::lonnet::devalidatecourseresdata(
 3307:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 3308:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 3309:     &Apache::lonnet::clear_EXT_cache_status();
 3310: 
 3311:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
 3312:     $result.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
 3313: 
 3314:     #view individual student submission form - called using Javascript viewOneStudent
 3315:     $result.=&jscriptNform($symb);
 3316: 
 3317:     #beginning of class grading form
 3318:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 3319:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
 3320: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 3321: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
 3322: 	&build_section_inputs().
 3323: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 3324: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 3325: 	'<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 3326: 
 3327:     my ($common_header,$specific_header);
 3328:     if ($env{'form.section'} eq 'all') {
 3329: 	$common_header = &mt('Assign Common Grade to Class');
 3330:         $specific_header = &mt('Assign Grade to Specific Students in Class');
 3331:     } elsif ($env{'form.section'} eq 'none') {
 3332:         $common_header = &mt('Assign Common Grade to Students in no Section');
 3333: 	$specific_header = &mt('Assign Grade to Specific Students in no Section');
 3334:     } else {
 3335:         my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3336:         $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
 3337: 	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
 3338:     }
 3339:     $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
 3340:     #radio buttons/text box for assigning points for a section or class.
 3341:     #handles different parts of a problem
 3342:     my $res_error;
 3343:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3344:     if ($res_error) {
 3345:         return &navmap_errormsg();
 3346:     }
 3347:     my %weight = ();
 3348:     my $ctsparts = 0;
 3349:     my %seen = ();
 3350:     my @part_response_id = &flatten_responseType($responseType);
 3351:     foreach my $part_response_id (@part_response_id) {
 3352:     	my ($partid,$respid) = @{ $part_response_id };
 3353: 	my $part_resp = join('_',@{ $part_response_id });
 3354: 	next if $seen{$partid};
 3355: 	$seen{$partid}++;
 3356: 	my $handgrade=$$handgrade{$part_resp};
 3357: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 3358: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 3359: 
 3360: 	my $display_part=&get_display_part($partid,$symb);
 3361: 	my $radio.='<table border="0"><tr>';  
 3362: 	my $ctr = 0;
 3363: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
 3364: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
 3365: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
 3366: 		','.$ctr.')" />'.$ctr."</label></td>\n";
 3367: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 3368: 	    $ctr++;
 3369: 	}
 3370: 	$radio.='</tr></table>';
 3371: 	my $line = '<input type="text" name="TEXTVAL_'.
 3372: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 3373: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 3374: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
 3375: 	$line.= '<td><b>'.&mt('Grade Status').':</b><select name="SELVAL_'.$partid.'"'.
 3376: 	    'onchange="javascript:writeRadText(\''.$partid.'\','.
 3377: 		$weight{$partid}.')"> '.
 3378: 	    '<option selected="selected"> </option>'.
 3379: 	    '<option value="excused">'.&mt('excused').'</option>'.
 3380: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
 3381: 	    '</select></td>'.
 3382:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
 3383: 	$line.='<input type="hidden" name="partid_'.
 3384: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
 3385: 	$line.='<input type="hidden" name="weight_'.
 3386: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
 3387: 
 3388: 	$result.=
 3389: 	    &Apache::loncommon::start_data_table_row()."\n".
 3390: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
 3391: 	    &Apache::loncommon::end_data_table_row()."\n";
 3392: 	$ctsparts++;
 3393:     }
 3394:     $result.=&Apache::loncommon::end_data_table()."\n".
 3395: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
 3396:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
 3397: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
 3398: 
 3399:     #table listing all the students in a section/class
 3400:     #header of table
 3401:     $result.= '<h3>'.$specific_header.'</h3>'.
 3402:               &Apache::loncommon::start_data_table().
 3403: 	      &Apache::loncommon::start_data_table_header_row().
 3404: 	      '<th>'.&mt('No.').'</th>'.
 3405: 	      '<th>'.&nameUserString('header')."</th>\n";
 3406:     my $partserror;
 3407:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3408:     if ($partserror) {
 3409:         return &navmap_errormsg();
 3410:     }
 3411:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
 3412:     my @partids = ();
 3413:     foreach my $part (@parts) {
 3414: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3415:         my $narrowtext = &mt('Tries');
 3416: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
 3417: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
 3418: 	my ($partid) = &split_part_type($part);
 3419:         push(@partids,$partid);
 3420: 	my $display_part=&get_display_part($partid,$symb);
 3421: 	if ($display =~ /^Partial Credit Factor/) {
 3422: 	    $result.='<th>'.
 3423: 		&mt('Score Part: [_1]<br /> (weight = [_2])',
 3424: 		    $display_part,$weight{$partid}).'</th>'."\n";
 3425: 	    next;
 3426: 	    
 3427: 	} else {
 3428: 	    if ($display =~ /Problem Status/) {
 3429: 		my $grade_status_mt = &mt('Grade Status');
 3430: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
 3431: 	    }
 3432: 	    my $part_mt = &mt('Part:');
 3433: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
 3434: 	}
 3435: 
 3436: 	$result.='<th>'.$display.'</th>'."\n";
 3437:     }
 3438:     $result.=&Apache::loncommon::end_data_table_header_row();
 3439: 
 3440:     my %last_resets = 
 3441: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
 3442: 
 3443:     #get info for each student
 3444:     #list all the students - with points and grade status
 3445:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 3446:     my $ctr = 0;
 3447:     foreach (sort 
 3448: 	     {
 3449: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3450: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3451: 		 }
 3452: 		 return $a cmp $b;
 3453: 	     } (keys(%$fullname))) {
 3454: 	$ctr++;
 3455: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
 3456: 				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
 3457:     }
 3458:     $result.=&Apache::loncommon::end_data_table();
 3459:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
 3460:     $result.='<input type="button" value="'.&mt('Save').'" '.
 3461: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
 3462:     if (scalar(%$fullname) eq 0) {
 3463: 	my $colspan=3+scalar(@parts);
 3464: 	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3465:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
 3466: 	$result='<span class="LC_warning">'.
 3467: 	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
 3468: 	        $section_display, $stu_status).
 3469: 	    '</span>';
 3470:     }
 3471:     $result.=&show_grading_menu_form($symb);
 3472:     return $result;
 3473: }
 3474: 
 3475: #--- call by previous routine to display each student
 3476: sub viewstudentgrade {
 3477:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
 3478:     my ($uname,$udom) = split(/:/,$student);
 3479:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
 3480:     my %aggregates = (); 
 3481:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
 3482: 	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
 3483: 	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
 3484: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 3485: 	'\');" target="_self">'.$fullname.'</a> '.
 3486: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
 3487:     $student=~s/:/_/; # colon doen't work in javascript for names
 3488:     foreach my $apart (@$parts) {
 3489: 	my ($part,$type) = &split_part_type($apart);
 3490: 	my $score=$record{"resource.$part.$type"};
 3491:         $result.='<td align="center">';
 3492:         my ($aggtries,$totaltries);
 3493:         unless (exists($aggregates{$part})) {
 3494: 	    $totaltries = $record{'resource.'.$part.'.tries'};
 3495: 
 3496: 	    $aggtries = $totaltries;
 3497:             if ($$last_resets{$part}) {  
 3498:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
 3499: 					   $part);
 3500:             }
 3501:             $result.='<input type="hidden" name="'.
 3502:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
 3503:             $result.='<input type="hidden" name="'.
 3504:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
 3505:             $aggregates{$part} = 1;
 3506:         }
 3507: 	if ($type eq 'awarded') {
 3508: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
 3509: 	    $result.='<input type="hidden" name="'.
 3510: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
 3511: 	    $result.='<input type="text" name="'.
 3512: 		'GD_'.$student.'_'.$part.'_awarded" '.
 3513:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
 3514: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
 3515: 	} elsif ($type eq 'solved') {
 3516: 	    my ($status,$foo)=split(/_/,$score,2);
 3517: 	    $status = 'nothing' if ($status eq '');
 3518: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
 3519: 		$part.'_solved_s" value="'.$status.'" />'."\n";
 3520: 	    $result.='&nbsp;<select name="'.
 3521: 		'GD_'.$student.'_'.$part.'_solved" '.
 3522:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
 3523: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
 3524: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
 3525: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
 3526: 	    $result.="</select>&nbsp;</td>\n";
 3527: 	} else {
 3528: 	    $result.='<input type="hidden" name="'.
 3529: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
 3530: 		    "\n";
 3531: 	    $result.='<input type="text" name="'.
 3532: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
 3533: 		'value="'.$score.'" size="4" /></td>'."\n";
 3534: 	}
 3535:     }
 3536:     $result.=&Apache::loncommon::end_data_table_row();
 3537:     return $result;
 3538: }
 3539: 
 3540: #--- change scores for all the students in a section/class
 3541: #    record does not get update if unchanged
 3542: sub editgrades {
 3543:     my ($request) = @_;
 3544: 
 3545:     my $symb=&get_symb($request);
 3546:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3547:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
 3548:     $title.='<h4>'.&mt('<b>Current Resource: </b>[_1]',$env{'form.probTitle'}).'</h4>'."\n";
 3549:     $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
 3550: 
 3551:     my $result= &Apache::loncommon::start_data_table().
 3552: 	&Apache::loncommon::start_data_table_header_row().
 3553: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
 3554: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
 3555:     my %scoreptr = (
 3556: 		    'correct'  =>'correct_by_override',
 3557: 		    'incorrect'=>'incorrect_by_override',
 3558: 		    'excused'  =>'excused',
 3559: 		    'ungraded' =>'ungraded_attempted',
 3560: 		    'nothing'  => '',
 3561: 		    );
 3562:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 3563: 
 3564:     my (@partid);
 3565:     my %weight = ();
 3566:     my %columns = ();
 3567:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
 3568: 
 3569:     my $partserror;
 3570:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3571:     if ($partserror) {
 3572:         return &navmap_errormsg();
 3573:     }
 3574:     my $header;
 3575:     while ($ctr < $env{'form.totalparts'}) {
 3576: 	my $partid = $env{'form.partid_'.$ctr};
 3577: 	push(@partid,$partid);
 3578: 	$weight{$partid} = $env{'form.weight_'.$partid};
 3579: 	$ctr++;
 3580:     }
 3581:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3582:     foreach my $partid (@partid) {
 3583: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
 3584: 	    '<th align="center">'.&mt('New Score').'</th>';
 3585: 	$columns{$partid}=2;
 3586: 	foreach my $stores (@parts) {
 3587: 	    my ($part,$type) = &split_part_type($stores);
 3588: 	    if ($part !~ m/^\Q$partid\E/) { next;}
 3589: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
 3590: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
 3591: 	    $display =~ s/\[Part: \Q$part\E\]//;
 3592:             my $narrowtext = &mt('Tries');
 3593: 	    $display =~ s/Number of Attempts/$narrowtext/;
 3594: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
 3595: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
 3596: 	    $columns{$partid}+=2;
 3597: 	}
 3598:     }
 3599:     foreach my $partid (@partid) {
 3600: 	my $display_part=&get_display_part($partid,$symb);
 3601: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
 3602: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
 3603: 	    '</th>';
 3604: 
 3605:     }
 3606:     $result .= &Apache::loncommon::end_data_table_header_row().
 3607: 	&Apache::loncommon::start_data_table_header_row().
 3608: 	$header.
 3609: 	&Apache::loncommon::end_data_table_header_row();
 3610:     my @noupdate;
 3611:     my ($updateCtr,$noupdateCtr) = (1,1);
 3612:     for ($i=0; $i<$env{'form.total'}; $i++) {
 3613: 	my $line;
 3614: 	my $user = $env{'form.ctr'.$i};
 3615: 	my ($uname,$udom)=split(/:/,$user);
 3616: 	my %newrecord;
 3617: 	my $updateflag = 0;
 3618: 	$line .= '<td>'.&nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
 3619: 	my $usec=$classlist->{"$uname:$udom"}[5];
 3620: 	if (!&canmodify($usec)) {
 3621: 	    my $numcols=scalar(@partid)*4+2;
 3622: 	    push(@noupdate,
 3623: 		 $line."<td colspan=\"$numcols\"><span class=\"LC_warning\">".
 3624: 		 &mt('Not allowed to modify student')."</span></td></tr>");
 3625: 	    next;
 3626: 	}
 3627:         my %aggregate = ();
 3628:         my $aggregateflag = 0;
 3629: 	$user=~s/:/_/; # colon doen't work in javascript for names
 3630: 	foreach (@partid) {
 3631: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 3632: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
 3633: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
 3634: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3635: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 3636: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 3637: 	    my $partial   = $awarded eq '' ? '' : $pcr;
 3638: 	    my $score;
 3639: 	    if ($partial eq '') {
 3640: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3641: 	    } elsif ($partial > 0) {
 3642: 		$score = 'correct_by_override';
 3643: 	    } elsif ($partial == 0) {
 3644: 		$score = 'incorrect_by_override';
 3645: 	    }
 3646: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
 3647: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
 3648: 
 3649: 	    $newrecord{'resource.'.$_.'.regrader'}=
 3650: 		"$env{'user.name'}:$env{'user.domain'}";
 3651: 	    if ($dropMenu eq 'reset status' &&
 3652: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
 3653: 		$newrecord{'resource.'.$_.'.tries'} = '';
 3654: 		$newrecord{'resource.'.$_.'.solved'} = '';
 3655: 		$newrecord{'resource.'.$_.'.award'} = '';
 3656: 		$newrecord{'resource.'.$_.'.awarded'} = '';
 3657: 		$updateflag = 1;
 3658:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
 3659:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
 3660:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
 3661:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
 3662:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 3663:                     $aggregateflag = 1;
 3664:                 }
 3665: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
 3666: 		$updateflag = 1;
 3667: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
 3668: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
 3669: 		$rec_update++;
 3670: 	    }
 3671: 
 3672: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3673: 		'<td align="center">'.$awarded.
 3674: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
 3675: 
 3676: 
 3677: 	    my $partid=$_;
 3678: 	    foreach my $stores (@parts) {
 3679: 		my ($part,$type) = &split_part_type($stores);
 3680: 		if ($part !~ m/^\Q$partid\E/) { next;}
 3681: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
 3682: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
 3683: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
 3684: 		if ($awarded ne '' && $awarded ne $old_aw) {
 3685: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
 3686: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 3687: 		    $updateflag=1;
 3688: 		}
 3689: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3690: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
 3691: 	    }
 3692: 	}
 3693: 	$line.="\n";
 3694: 
 3695: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3696: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3697: 
 3698: 	if ($updateflag) {
 3699: 	    $count++;
 3700: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
 3701: 				    $udom,$uname);
 3702: 
 3703: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
 3704: 					      $cnum,$udom,$uname)) {
 3705: 		# need to figure out if should be in queue.
 3706: 		my %record =  
 3707: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
 3708: 					     $udom,$uname);
 3709: 		my $all_graded = 1;
 3710: 		my $none_graded = 1;
 3711: 		foreach my $part (@parts) {
 3712: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
 3713: 			$all_graded = 0;
 3714: 		    } else {
 3715: 			$none_graded = 0;
 3716: 		    }
 3717: 		}
 3718: 
 3719: 		if ($all_graded || $none_graded) {
 3720: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 3721: 							   $symb,$cdom,$cnum,
 3722: 							   $udom,$uname);
 3723: 		}
 3724: 	    }
 3725: 
 3726: 	    $result.=&Apache::loncommon::start_data_table_row().
 3727: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 3728: 		&Apache::loncommon::end_data_table_row();
 3729: 	    $updateCtr++;
 3730: 	} else {
 3731: 	    push(@noupdate,
 3732: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
 3733: 	    $noupdateCtr++;
 3734: 	}
 3735:         if ($aggregateflag) {
 3736:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3737: 				  $cdom,$cnum);
 3738:         }
 3739:     }
 3740:     if (@noupdate) {
 3741: #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
 3742: 	my $numcols=scalar(@partid)*4+2;
 3743: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
 3744: 	    '<td align="center" colspan="'.$numcols.'">'.
 3745: 	    &mt('No Changes Occurred For the Students Below').
 3746: 	    '</td>'.
 3747: 	    &Apache::loncommon::end_data_table_row();
 3748: 	foreach my $line (@noupdate) {
 3749: 	    $result.=
 3750: 		&Apache::loncommon::start_data_table_row().
 3751: 		$line.
 3752: 		&Apache::loncommon::end_data_table_row();
 3753: 	}
 3754:     }
 3755:     $result .= &Apache::loncommon::end_data_table().
 3756: 	&show_grading_menu_form($symb);
 3757:     my $msg = '<p><b>'.
 3758: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
 3759: 	    $rec_update,$count).'</b><br />'.
 3760: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
 3761: 	'</b></p>';
 3762:     return $title.$msg.$result;
 3763: }
 3764: 
 3765: sub split_part_type {
 3766:     my ($partstr) = @_;
 3767:     my ($temp,@allparts)=split(/_/,$partstr);
 3768:     my $type=pop(@allparts);
 3769:     my $part=join('_',@allparts);
 3770:     return ($part,$type);
 3771: }
 3772: 
 3773: #------------- end of section for handling grading by section/class ---------
 3774: #
 3775: #----------------------------------------------------------------------------
 3776: 
 3777: 
 3778: #----------------------------------------------------------------------------
 3779: #
 3780: #-------------------------- Next few routines handles grading by csv upload
 3781: #
 3782: #--- Javascript to handle csv upload
 3783: sub csvupload_javascript_reverse_associate {
 3784:     my $error1=&mt('You need to specify the username or the student/employee ID');
 3785:     my $error2=&mt('You need to specify at least one grading field');
 3786:   return(<<ENDPICK);
 3787:   function verify(vf) {
 3788:     var foundsomething=0;
 3789:     var founduname=0;
 3790:     var foundID=0;
 3791:     for (i=0;i<=vf.nfields.value;i++) {
 3792:       tw=eval('vf.f'+i+'.selectedIndex');
 3793:       if (i==0 && tw!=0) { foundID=1; }
 3794:       if (i==1 && tw!=0) { founduname=1; }
 3795:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
 3796:     }
 3797:     if (founduname==0 && foundID==0) {
 3798: 	alert('$error1');
 3799: 	return;
 3800:     }
 3801:     if (foundsomething==0) {
 3802: 	alert('$error2');
 3803: 	return;
 3804:     }
 3805:     vf.submit();
 3806:   }
 3807:   function flip(vf,tf) {
 3808:     var nw=eval('vf.f'+tf+'.selectedIndex');
 3809:     var i;
 3810:     for (i=0;i<=vf.nfields.value;i++) {
 3811:       //can not pick the same destination field for both name and domain
 3812:       if (((i ==0)||(i ==1)) && 
 3813:           ((tf==0)||(tf==1)) && 
 3814:           (i!=tf) &&
 3815:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
 3816:         eval('vf.f'+i+'.selectedIndex=0;')
 3817:       }
 3818:     }
 3819:   }
 3820: ENDPICK
 3821: }
 3822: 
 3823: sub csvupload_javascript_forward_associate {
 3824:     my $error1=&mt('You need to specify the username or the student/employee ID');
 3825:     my $error2=&mt('You need to specify at least one grading field');
 3826:   return(<<ENDPICK);
 3827:   function verify(vf) {
 3828:     var foundsomething=0;
 3829:     var founduname=0;
 3830:     var foundID=0;
 3831:     for (i=0;i<=vf.nfields.value;i++) {
 3832:       tw=eval('vf.f'+i+'.selectedIndex');
 3833:       if (tw==1) { foundID=1; }
 3834:       if (tw==2) { founduname=1; }
 3835:       if (tw>3) { foundsomething=1; }
 3836:     }
 3837:     if (founduname==0 && foundID==0) {
 3838: 	alert('$error1');
 3839: 	return;
 3840:     }
 3841:     if (foundsomething==0) {
 3842: 	alert('$error2');
 3843: 	return;
 3844:     }
 3845:     vf.submit();
 3846:   }
 3847:   function flip(vf,tf) {
 3848:     var nw=eval('vf.f'+tf+'.selectedIndex');
 3849:     var i;
 3850:     //can not pick the same destination field twice
 3851:     for (i=0;i<=vf.nfields.value;i++) {
 3852:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
 3853:         eval('vf.f'+i+'.selectedIndex=0;')
 3854:       }
 3855:     }
 3856:   }
 3857: ENDPICK
 3858: }
 3859: 
 3860: sub csvuploadmap_header {
 3861:     my ($request,$symb,$datatoken,$distotal)= @_;
 3862:     my $javascript;
 3863:     if ($env{'form.upfile_associate'} eq 'reverse') {
 3864: 	$javascript=&csvupload_javascript_reverse_associate();
 3865:     } else {
 3866: 	$javascript=&csvupload_javascript_forward_associate();
 3867:     }
 3868: 
 3869:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 3870:     my $checked=(($env{'form.noFirstLine'})?' checked="checked"':'');
 3871:     my $ignore=&mt('Ignore First Line');
 3872:     $symb = &Apache::lonenc::check_encrypt($symb);
 3873:     $request->print(<<ENDPICK);
 3874: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 3875: <h3><span class="LC_info">Uploading Class Grades</span></h3>
 3876: $result
 3877: <hr />
 3878: <h3>Identify fields</h3>
 3879: Total number of records found in file: $distotal <hr />
 3880: Enter as many fields as you can. The system will inform you and bring you back
 3881: to this page if the data selected is insufficient to run your class.<hr />
 3882: <input type="button" value="Reverse Association" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
 3883: <label><input type="checkbox" name="noFirstLine" $checked />$ignore</label>
 3884: <input type="hidden" name="associate"  value="" />
 3885: <input type="hidden" name="phase"      value="three" />
 3886: <input type="hidden" name="datatoken"  value="$datatoken" />
 3887: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 3888: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 3889: <input type="hidden" name="upfile_associate" 
 3890:                                        value="$env{'form.upfile_associate'}" />
 3891: <input type="hidden" name="symb"       value="$symb" />
 3892: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 3893: <input type="hidden" name="probTitle"  value="$env{'form.probTitle'}" />
 3894: <input type="hidden" name="command"    value="csvuploadoptions" />
 3895: <hr />
 3896: <script type="text/javascript" language="Javascript">
 3897: $javascript
 3898: </script>
 3899: ENDPICK
 3900:     return '';
 3901: 
 3902: }
 3903: 
 3904: sub csvupload_fields {
 3905:     my ($symb,$errorref) = @_;
 3906:     my (@parts) = &getpartlist($symb,$errorref);
 3907:     if (ref($errorref)) {
 3908:         if ($$errorref) {
 3909:             return;
 3910:         }
 3911:     }
 3912: 
 3913:     my @fields=(['ID','Student/Employee ID'],
 3914: 		['username','Student Username'],
 3915: 		['domain','Student Domain']);
 3916:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3917:     foreach my $part (sort(@parts)) {
 3918: 	my @datum;
 3919: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3920: 	my $name=$part;
 3921: 	if  (!$display) { $display = $name; }
 3922: 	@datum=($name,$display);
 3923: 	if ($name=~/^stores_(.*)_awarded/) {
 3924: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
 3925: 	}
 3926: 	push(@fields,\@datum);
 3927:     }
 3928:     return (@fields);
 3929: }
 3930: 
 3931: sub csvuploadmap_footer {
 3932:     my ($request,$i,$keyfields) =@_;
 3933:     $request->print(<<ENDPICK);
 3934: </table>
 3935: <input type="hidden" name="nfields" value="$i" />
 3936: <input type="hidden" name="keyfields" value="$keyfields" />
 3937: <input type="button" onclick="javascript:verify(this.form)" value="Assign Grades" /><br />
 3938: </form>
 3939: ENDPICK
 3940: }
 3941: 
 3942: sub checkforfile_js {
 3943:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 3944:     my $result =<<CSVFORMJS;
 3945: <script type="text/javascript" language="javascript">
 3946:     function checkUpload(formname) {
 3947: 	if (formname.upfile.value == "") {
 3948: 	    alert("$alertmsg");
 3949: 	    return false;
 3950: 	}
 3951: 	formname.submit();
 3952:     }
 3953:     </script>
 3954: CSVFORMJS
 3955:     return $result;
 3956: }
 3957: 
 3958: sub upcsvScores_form {
 3959:     my ($request) = shift;
 3960:     my ($symb)=&get_symb($request);
 3961:     if (!$symb) {return '';}
 3962:     my $result=&checkforfile_js();
 3963:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 3964:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 3965:     $result.=$table;
 3966:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 3967:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 3968:     $result.='&nbsp;<b>'.&mt('Specify a file containing the class scores for current resource.').
 3969: 	'</b></td></tr>'."\n";
 3970:     $result.='<tr bgcolor=#ffffe6><td>'."\n";
 3971:     my $upload=&mt("Upload Scores");
 3972:     my $upfile_select=&Apache::loncommon::upfile_select_html();
 3973:     my $ignore=&mt('Ignore First Line');
 3974:     $symb = &Apache::lonenc::check_encrypt($symb);
 3975:     $result.=<<ENDUPFORM;
 3976: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 3977: <input type="hidden" name="symb" value="$symb" />
 3978: <input type="hidden" name="command" value="csvuploadmap" />
 3979: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 3980: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 3981: $upfile_select
 3982: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 3983: <label><input type="checkbox" name="noFirstLine" />$ignore</label>
 3984: </form>
 3985: ENDUPFORM
 3986:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 3987:                            &mt("How do I create a CSV file from a spreadsheet"))
 3988:     .'</td></tr></table>'."\n";
 3989:     $result.='</td></tr></table><br /><br />'."\n";
 3990:     $result.=&show_grading_menu_form($symb);
 3991:     return $result;
 3992: }
 3993: 
 3994: 
 3995: sub csvuploadmap {
 3996:     my ($request)= @_;
 3997:     my ($symb)=&get_symb($request);
 3998:     if (!$symb) {return '';}
 3999: 
 4000:     my $datatoken;
 4001:     if (!$env{'form.datatoken'}) {
 4002: 	$datatoken=&Apache::loncommon::upfile_store($request);
 4003:     } else {
 4004: 	$datatoken=$env{'form.datatoken'};
 4005: 	&Apache::loncommon::load_tmp_file($request);
 4006:     }
 4007:     my @records=&Apache::loncommon::upfile_record_sep();
 4008:     if ($env{'form.noFirstLine'}) { shift(@records); }
 4009:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
 4010:     my ($i,$keyfields);
 4011:     if (@records) {
 4012:         my $fieldserror;
 4013: 	my @fields=&csvupload_fields($symb,\$fieldserror);
 4014:         if ($fieldserror) {
 4015:             $request->print(&navmap_errormsg());
 4016:             return;
 4017:         }
 4018: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 4019: 	    &Apache::loncommon::csv_print_samples($request,\@records);
 4020: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
 4021: 							  \@fields);
 4022: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 4023: 	    chop($keyfields);
 4024: 	} else {
 4025: 	    unshift(@fields,['none','']);
 4026: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
 4027: 							    \@fields);
 4028:             foreach my $rec (@records) {
 4029:                 my %temp = &Apache::loncommon::record_sep($rec);
 4030:                 if (%temp) {
 4031:                     $keyfields=join(',',sort(keys(%temp)));
 4032:                     last;
 4033:                 }
 4034:             }
 4035: 	}
 4036:     }
 4037:     &csvuploadmap_footer($request,$i,$keyfields);
 4038:     $request->print(&show_grading_menu_form($symb));
 4039: 
 4040:     return '';
 4041: }
 4042: 
 4043: sub csvuploadoptions {
 4044:     my ($request)= @_;
 4045:     my ($symb)=&get_symb($request);
 4046:     my $checked=(($env{'form.noFirstLine'})?'1':'0');
 4047:     my $ignore=&mt('Ignore First Line');
 4048:     $request->print(<<ENDPICK);
 4049: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4050: <h3><span class="LC_info">Uploading Class Grade Options</span></h3>
 4051: <input type="hidden" name="command"    value="csvuploadassign" />
 4052: <!--
 4053: <p>
 4054: <label>
 4055:    <input type="checkbox" name="show_full_results" />
 4056:    Show a table of all changes
 4057: </label>
 4058: </p>
 4059: -->
 4060: <p>
 4061: <label>
 4062:    <input type="checkbox" name="overwite_scores" checked="checked" />
 4063:    Overwrite any existing score
 4064: </label>
 4065: </p>
 4066: ENDPICK
 4067:     my %fields=&get_fields();
 4068:     if (!defined($fields{'domain'})) {
 4069: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
 4070: 	$request->print("\n<p> Users are in domain: ".$domform."</p>\n");
 4071:     }
 4072:     foreach my $key (sort(keys(%env))) {
 4073: 	if ($key !~ /^form\.(.*)$/) { next; }
 4074: 	my $cleankey=$1;
 4075: 	if ($cleankey eq 'command') { next; }
 4076: 	$request->print('<input type="hidden" name="'.$cleankey.
 4077: 			'"  value="'.$env{$key}.'" />'."\n");
 4078:     }
 4079:     # FIXME do a check for any duplicated user ids...
 4080:     # FIXME do a check for any invalid user ids?...
 4081:     $request->print('<input type="submit" value="Assign Grades" /><br />
 4082: <hr /></form>'."\n");
 4083:     $request->print(&show_grading_menu_form($symb));
 4084:     return '';
 4085: }
 4086: 
 4087: sub get_fields {
 4088:     my %fields;
 4089:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 4090:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 4091: 	if ($env{'form.upfile_associate'} eq 'reverse') {
 4092: 	    if ($env{'form.f'.$i} ne 'none') {
 4093: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
 4094: 	    }
 4095: 	} else {
 4096: 	    if ($env{'form.f'.$i} ne 'none') {
 4097: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
 4098: 	    }
 4099: 	}
 4100:     }
 4101:     return %fields;
 4102: }
 4103: 
 4104: sub csvuploadassign {
 4105:     my ($request)= @_;
 4106:     my ($symb)=&get_symb($request);
 4107:     if (!$symb) {return '';}
 4108:     my $error_msg = '';
 4109:     &Apache::loncommon::load_tmp_file($request);
 4110:     my @gradedata = &Apache::loncommon::upfile_record_sep();
 4111:     if ($env{'form.noFirstLine'}) { shift(@gradedata); }
 4112:     my %fields=&get_fields();
 4113:     $request->print('<h3>Assigning Grades</h3>');
 4114:     my $courseid=$env{'request.course.id'};
 4115:     my ($classlist) = &getclasslist('all',0);
 4116:     my @notallowed;
 4117:     my @skipped;
 4118:     my $countdone=0;
 4119:     foreach my $grade (@gradedata) {
 4120: 	my %entries=&Apache::loncommon::record_sep($grade);
 4121: 	my $domain;
 4122: 	if ($entries{$fields{'domain'}}) {
 4123: 	    $domain=$entries{$fields{'domain'}};
 4124: 	} else {
 4125: 	    $domain=$env{'form.default_domain'};
 4126: 	}
 4127: 	$domain=~s/\s//g;
 4128: 	my $username=$entries{$fields{'username'}};
 4129: 	$username=~s/\s//g;
 4130: 	if (!$username) {
 4131: 	    my $id=$entries{$fields{'ID'}};
 4132: 	    $id=~s/\s//g;
 4133: 	    my %ids=&Apache::lonnet::idget($domain,$id);
 4134: 	    $username=$ids{$id};
 4135: 	}
 4136: 	if (!exists($$classlist{"$username:$domain"})) {
 4137: 	    my $id=$entries{$fields{'ID'}};
 4138: 	    $id=~s/\s//g;
 4139: 	    if ($id) {
 4140: 		push(@skipped,"$id:$domain");
 4141: 	    } else {
 4142: 		push(@skipped,"$username:$domain");
 4143: 	    }
 4144: 	    next;
 4145: 	}
 4146: 	my $usec=$classlist->{"$username:$domain"}[5];
 4147: 	if (!&canmodify($usec)) {
 4148: 	    push(@notallowed,"$username:$domain");
 4149: 	    next;
 4150: 	}
 4151: 	my %points;
 4152: 	my %grades;
 4153: 	foreach my $dest (keys(%fields)) {
 4154: 	    if ($dest eq 'ID' || $dest eq 'username' ||
 4155: 		$dest eq 'domain') { next; }
 4156: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
 4157: 	    if ($dest=~/stores_(.*)_points/) {
 4158: 		my $part=$1;
 4159: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 4160: 					      $symb,$domain,$username);
 4161:                 if ($wgt) {
 4162:                     $entries{$fields{$dest}}=~s/\s//g;
 4163:                     my $pcr=$entries{$fields{$dest}} / $wgt;
 4164:                     my $award=($pcr == 0) ? 'incorrect_by_override'
 4165:                                           : 'correct_by_override';
 4166:                     $grades{"resource.$part.awarded"}=$pcr;
 4167:                     $grades{"resource.$part.solved"}=$award;
 4168:                     $points{$part}=1;
 4169:                 } else {
 4170:                     $error_msg = "<br />" .
 4171:                         &mt("Some point values were assigned"
 4172:                             ." for problems with a weight "
 4173:                             ."of zero. These values were "
 4174:                             ."ignored.");
 4175:                 }
 4176: 	    } else {
 4177: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 4178: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 4179: 		my $store_key=$dest;
 4180: 		$store_key=~s/^stores/resource/;
 4181: 		$store_key=~s/_/\./g;
 4182: 		$grades{$store_key}=$entries{$fields{$dest}};
 4183: 	    }
 4184: 	}
 4185: 	if (! %grades) { 
 4186:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
 4187:         } else {
 4188: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 4189: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
 4190: 					   $env{'request.course.id'},
 4191: 					   $domain,$username);
 4192: 	   if ($result eq 'ok') {
 4193: 	      $request->print('.');
 4194: 	   } else {
 4195: 	      $request->print("<p><span class=\"LC_error\">".
 4196:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
 4197:                                   "$username:$domain",$result)."</span></p>");
 4198: 	   }
 4199: 	   $request->rflush();
 4200: 	   $countdone++;
 4201:         }
 4202:     }
 4203:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
 4204:     if (@skipped) {
 4205: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
 4206:         $request->print(join(', ',@skipped));
 4207:     }
 4208:     if (@notallowed) {
 4209: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
 4210: 	$request->print(join(', ',@notallowed));
 4211:     }
 4212:     $request->print("<br />\n");
 4213:     $request->print(&show_grading_menu_form($symb));
 4214:     return $error_msg;
 4215: }
 4216: #------------- end of section for handling csv file upload ---------
 4217: #
 4218: #-------------------------------------------------------------------
 4219: #
 4220: #-------------- Next few routines handle grading by page/sequence
 4221: #
 4222: #--- Select a page/sequence and a student to grade
 4223: sub pickStudentPage {
 4224:     my ($request) = shift;
 4225: 
 4226:     my $alertmsg = &mt('Please select the student you wish to grade.');
 4227:     $request->print(<<LISTJAVASCRIPT);
 4228: <script type="text/javascript" language="javascript">
 4229: 
 4230: function checkPickOne(formname) {
 4231:     if (radioSelection(formname.student) == null) {
 4232: 	alert("$alertmsg");
 4233: 	return;
 4234:     }
 4235:     ptr = pullDownSelection(formname.selectpage);
 4236:     formname.page.value = formname["page"+ptr].value;
 4237:     formname.title.value = formname["title"+ptr].value;
 4238:     formname.submit();
 4239: }
 4240: 
 4241: </script>
 4242: LISTJAVASCRIPT
 4243:     &commonJSfunctions($request);
 4244:     my ($symb) = &get_symb($request);
 4245:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4246:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4247:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4248: 
 4249:     my $result='<h3><span class="LC_info">&nbsp;'.
 4250: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
 4251: 
 4252:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
 4253:     my $map_error;
 4254:     my ($titles,$symbx) = &getSymbMap($map_error);
 4255:     if ($map_error) {
 4256:         $request->print(&navmap_errormsg());
 4257:         return; 
 4258:     }
 4259:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 4260: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 4261: #    my $type=($curpage =~ /\.(page|sequence)/);
 4262:     my $select = '<select name="selectpage">'."\n";
 4263:     my $ctr=0;
 4264:     foreach (@$titles) {
 4265: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4266: 	$select.='<option value="'.$ctr.'" '.
 4267: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 4268: 	    '>'.$showtitle.'</option>'."\n";
 4269: 	$ctr++;
 4270:     }
 4271:     $select.= '</select>';
 4272:     $result.='&nbsp;<b>'.&mt('Problems from').':</b> '.$select."<br />\n";
 4273: 
 4274:     $ctr=0;
 4275:     foreach (@$titles) {
 4276: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4277: 	$result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
 4278: 	$result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
 4279: 	$ctr++;
 4280:     }
 4281:     $result.='<input type="hidden" name="page" />'."\n".
 4282: 	'<input type="hidden" name="title" />'."\n";
 4283: 
 4284:     my $options =
 4285: 	'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n".
 4286: 	'<label><input type="radio" name="vProb" value="yes" /> '.&mt('yes').' </label>'."<br />\n";
 4287:     $result.='&nbsp;<b>'.&mt('View Problem Text').': </b>'.$options;
 4288: 
 4289:     $options =
 4290: 	'<label><input type="radio" name="lastSub" value="none" /> '.&mt('none').' </label>'."\n".
 4291: 	'<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.&mt('by dates and submissions').'</label>'."\n".
 4292: 	'<label><input type="radio" name="lastSub" value="all" /> '.&mt('all details').' </label>'."\n";
 4293:     $result.='&nbsp;<b>'.&mt('Submissions').': </b>'.$options;
 4294:     
 4295:     $result.=&build_section_inputs();
 4296:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 4297:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
 4298: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
 4299: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4300: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."<br />\n";
 4301: 
 4302:     $result.='&nbsp;<b>'.&mt('Use CODE').': </b> <input type="text" name="CODE" value="" /> <br />'."\n";
 4303: 
 4304:     $result.='&nbsp;<input type="button" '.
 4305:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 4306: 
 4307:     $request->print($result);
 4308: 
 4309:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
 4310: 	&Apache::loncommon::start_data_table().
 4311: 	&Apache::loncommon::start_data_table_header_row().
 4312: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4313: 	'<th>'.&nameUserString('header').'</th>'.
 4314: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4315: 	'<th>'.&nameUserString('header').'</th>'.
 4316: 	&Apache::loncommon::end_data_table_header_row();
 4317:  
 4318:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
 4319:     my $ptr = 1;
 4320:     foreach my $student (sort 
 4321: 			 {
 4322: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 4323: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 4324: 			     }
 4325: 			     return $a cmp $b;
 4326: 			 } (keys(%$fullname))) {
 4327: 	my ($uname,$udom) = split(/:/,$student);
 4328: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
 4329:                                   : '</td>');
 4330: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
 4331: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
 4332: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
 4333: 	$studentTable.=
 4334: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
 4335:                          : '');
 4336: 	$ptr++;
 4337:     }
 4338:     if ($ptr%2 == 0) {
 4339: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
 4340: 	    &Apache::loncommon::end_data_table_row();
 4341:     }
 4342:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
 4343:     $studentTable.='<input type="button" '.
 4344:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
 4345: 
 4346:     $studentTable.=&show_grading_menu_form($symb);
 4347:     $request->print($studentTable);
 4348: 
 4349:     return '';
 4350: }
 4351: 
 4352: sub getSymbMap {
 4353:     my ($map_error) = @_;
 4354:     my $navmap = Apache::lonnavmaps::navmap->new();
 4355:     unless (ref($navmap)) {
 4356:         if (ref($map_error)) {
 4357:             $$map_error = 'navmap';
 4358:         }
 4359:         return;
 4360:     }
 4361:     my %symbx = ();
 4362:     my @titles = ();
 4363:     my $minder = 0;
 4364: 
 4365:     # Gather every sequence that has problems.
 4366:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 4367: 					       1,0,1);
 4368:     for my $sequence ($navmap->getById('0.0'), @sequences) {
 4369: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
 4370: 	    my $title = $minder.'.'.
 4371: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 4372: 	    push(@titles, $title); # minder in case two titles are identical
 4373: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
 4374: 	    $minder++;
 4375: 	}
 4376:     }
 4377:     return \@titles,\%symbx;
 4378: }
 4379: 
 4380: #
 4381: #--- Displays a page/sequence w/wo problems, w/wo submissions
 4382: sub displayPage {
 4383:     my ($request) = shift;
 4384: 
 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:     my $pageTitle = $env{'form.page'};
 4390:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4391:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4392:     my $usec=$classlist->{$env{'form.student'}}[5];
 4393: 
 4394:     #need to make sure we have the correct data for later EXT calls, 
 4395:     #thus invalidate the cache
 4396:     &Apache::lonnet::devalidatecourseresdata(
 4397:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 4398:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 4399:     &Apache::lonnet::clear_EXT_cache_status();
 4400: 
 4401:     if (!&canview($usec)) {
 4402: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested student. ([_1])',$env{'form.student'}).'</span>');
 4403: 	$request->print(&show_grading_menu_form($symb));
 4404: 	return;
 4405:     }
 4406:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4407:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
 4408: 	'</h3>'."\n";
 4409:     $env{'form.CODE'} = uc($env{'form.CODE'});
 4410:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
 4411: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
 4412:     } else {
 4413: 	delete($env{'form.CODE'});
 4414:     }
 4415:     &sub_page_js($request);
 4416:     $request->print($result);
 4417: 
 4418:     my $navmap = Apache::lonnavmaps::navmap->new();
 4419:     unless (ref($navmap)) {
 4420:         $request->print(&navmap_errormsg());
 4421:         $request->print(&show_grading_menu_form($symb));
 4422:         return;
 4423:     }
 4424:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
 4425:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4426:     if (!$map) {
 4427: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
 4428: 	$request->print(&show_grading_menu_form($symb));
 4429: 	return; 
 4430:     }
 4431:     my $iterator = $navmap->getIterator($map->map_start(),
 4432: 					$map->map_finish());
 4433: 
 4434:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
 4435: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
 4436: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
 4437: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
 4438: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
 4439: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
 4440: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4441: 	'<input type="hidden" name="overRideScore" value="no" />'."\n".
 4442: 	'<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n";
 4443: 
 4444:     if (defined($env{'form.CODE'})) {
 4445: 	$studentTable.=
 4446: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
 4447:     }
 4448:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 4449: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 4450: 
 4451:     $studentTable.='&nbsp;'.&mt('<b>Note:</b> Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon)."\n".
 4452: 	&Apache::loncommon::start_data_table().
 4453: 	&Apache::loncommon::start_data_table_header_row().
 4454: 	'<th align="center">&nbsp;Prob.&nbsp;</th>'.
 4455: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 4456: 	&Apache::loncommon::end_data_table_header_row();
 4457: 
 4458:     &Apache::lonxml::clear_problem_counter();
 4459:     my ($depth,$question,$prob) = (1,1,1);
 4460:     $iterator->next(); # skip the first BEGIN_MAP
 4461:     my $curRes = $iterator->next(); # for "current resource"
 4462:     while ($depth > 0) {
 4463:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4464:         if($curRes == $iterator->END_MAP) { $depth--; }
 4465: 
 4466:         if (ref($curRes) && $curRes->is_problem()) {
 4467: 	    my $parts = $curRes->parts();
 4468:             my $title = $curRes->compTitle();
 4469: 	    my $symbx = $curRes->symb();
 4470: 	    $studentTable.=
 4471: 		&Apache::loncommon::start_data_table_row().
 4472: 		'<td align="center" valign="top" >'.$prob.
 4473: 		(scalar(@{$parts}) == 1 ? '' 
 4474: 		                        : '<br />('.&mt('[_1]&nbsp;parts)',
 4475: 							scalar(@{$parts}))
 4476: 		 ).
 4477: 		 '</td>';
 4478: 	    $studentTable.='<td valign="top">';
 4479: 	    my %form = ('CODE' => $env{'form.CODE'},);
 4480: 	    if ($env{'form.vProb'} eq 'yes' ) {
 4481: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
 4482: 					     undef,'both',\%form);
 4483: 	    } else {
 4484: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
 4485: 		$companswer =~ s|<form(.*?)>||g;
 4486: 		$companswer =~ s|</form>||g;
 4487: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
 4488: #		    $companswer =~ s/$1/ /ms;
 4489: #		    $request->print('match='.$1."<br />\n");
 4490: #		}
 4491: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
 4492: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
 4493: 	    }
 4494: 
 4495: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 4496: 
 4497: 	    if ($env{'form.lastSub'} eq 'datesub') {
 4498: 		if ($record{'version'} eq '') {
 4499: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
 4500: 		} else {
 4501: 		    my %responseType = ();
 4502: 		    foreach my $partid (@{$parts}) {
 4503: 			my @responseIds =$curRes->responseIds($partid);
 4504: 			my @responseType =$curRes->responseType($partid);
 4505: 			my %responseIds;
 4506: 			for (my $i=0;$i<=$#responseIds;$i++) {
 4507: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
 4508: 			}
 4509: 			$responseType{$partid} = \%responseIds;
 4510: 		    }
 4511: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
 4512: 
 4513: 		}
 4514: 	    } elsif ($env{'form.lastSub'} eq 'all') {
 4515: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 4516: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 4517: 									$env{'request.course.id'},
 4518: 									'','.submission');
 4519:  
 4520: 	    }
 4521: 	    if (&canmodify($usec)) {
 4522:             $studentTable.=&gradeBox_start();
 4523: 		foreach my $partid (@{$parts}) {
 4524: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
 4525: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
 4526: 		    $question++;
 4527: 		}
 4528:             $studentTable.=&gradeBox_end();
 4529: 		$prob++;
 4530: 	    }
 4531: 	    $studentTable.='</td></tr>';
 4532: 
 4533: 	}
 4534:         $curRes = $iterator->next();
 4535:     }
 4536: 
 4537:     $studentTable.=
 4538:         '</table>'."\n".
 4539:         '<input type="button" value="'.&mt('Save').'" '.
 4540:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
 4541:         '</form>'."\n";
 4542:     $studentTable.=&show_grading_menu_form($symb);
 4543:     $request->print($studentTable);
 4544: 
 4545:     return '';
 4546: }
 4547: 
 4548: sub displaySubByDates {
 4549:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
 4550:     my $isCODE=0;
 4551:     my $isTask = ($symb =~/\.task$/);
 4552:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
 4553:     my $studentTable=&Apache::loncommon::start_data_table().
 4554: 	&Apache::loncommon::start_data_table_header_row().
 4555: 	'<th>'.&mt('Date/Time').'</th>'.
 4556: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
 4557: 	'<th>'.&mt('Submission').'</th>'.
 4558: 	'<th>'.&mt('Status').'</th>'.
 4559: 	&Apache::loncommon::end_data_table_header_row();
 4560:     my ($version);
 4561:     my %mark;
 4562:     my %orders;
 4563:     $mark{'correct_by_student'} = $checkIcon;
 4564:     if (!exists($$record{'1:timestamp'})) {
 4565: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
 4566:     }
 4567: 
 4568:     my $interaction;
 4569:     my $no_increment = 1;
 4570:     for ($version=1;$version<=$$record{'version'};$version++) {
 4571: 	my $timestamp = 
 4572: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 4573: 	if (exists($$record{$version.':resource.0.version'})) {
 4574: 	    $interaction = $$record{$version.':resource.0.version'};
 4575: 	}
 4576: 
 4577: 	my $where = ($isTask ? "$version:resource.$interaction"
 4578: 		             : "$version:resource");
 4579: 	$studentTable.=&Apache::loncommon::start_data_table_row().
 4580: 	    '<td>'.$timestamp.'</td>';
 4581: 	if ($isCODE) {
 4582: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 4583: 	}
 4584: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 4585: 	my @displaySub = ();
 4586: 	foreach my $partid (@{$parts}) {
 4587: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
 4588: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
 4589: 	    
 4590: 
 4591: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 4592: 	    my $display_part=&get_display_part($partid,$symb);
 4593: 	    foreach my $matchKey (@matchKey) {
 4594: 		if (exists($$record{$version.':'.$matchKey}) &&
 4595: 		    $$record{$version.':'.$matchKey} ne '') {
 4596: 
 4597: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 4598: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
 4599:                     $displaySub[0].='<span class="LC_nobreak"';
 4600:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
 4601:                                    .' <span class="LC_internal_info">'
 4602:                                    .'('.&mt('Part ID: [_1]',$responseId).')'
 4603:                                    .'</span>'
 4604:                                    .' <b>';
 4605: 		    if ($$record{"$where.$partid.tries"} eq '') {
 4606: 			$displaySub[0].=&mt('Trial not counted');
 4607: 		    } else {
 4608: 			$displaySub[0].=&mt('Trial: [_1]',
 4609: 					    $$record{"$where.$partid.tries"});
 4610: 		    }
 4611: 		    my $responseType=($isTask ? 'Task'
 4612:                                               : $responseType->{$partid}->{$responseId});
 4613: 		    if (!exists($orders{$partid})) { $orders{$partid}={}; }
 4614: 		    if (!exists($orders{$partid}->{$responseId})) {
 4615: 			$orders{$partid}->{$responseId}=
 4616: 			    &get_order($partid,$responseId,$symb,$uname,$udom,
 4617:                                        $no_increment);
 4618: 		    }
 4619: 		    $displaySub[0].='</b></span>'; # /nobreak
 4620: 		    $displaySub[0].='&nbsp; '.
 4621: 			&cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom).'<br />';
 4622: 		}
 4623: 	    }
 4624: 	    if (exists($$record{"$where.$partid.checkedin"})) {
 4625: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
 4626: 				    $$record{"$where.$partid.checkedin"},
 4627: 				    $$record{"$where.$partid.checkedin.slot"}).
 4628: 					'<br />';
 4629: 	    }
 4630: 	    if (exists $$record{"$where.$partid.award"}) {
 4631: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
 4632: 		    lc($$record{"$where.$partid.award"}).' '.
 4633: 		    $mark{$$record{"$where.$partid.solved"}}.
 4634: 		    '<br />';
 4635: 	    }
 4636: 	    if (exists $$record{"$where.$partid.regrader"}) {
 4637: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
 4638: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4639: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 4640: 		$displaySub[2].=
 4641: 		    $$record{"$version:resource.$partid.regrader"}.
 4642: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4643: 	    }
 4644: 	}
 4645: 	# needed because old essay regrader has not parts info
 4646: 	if (exists $$record{"$version:resource.regrader"}) {
 4647: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
 4648: 	}
 4649: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
 4650: 	if ($displaySub[2]) {
 4651: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
 4652: 	}
 4653: 	$studentTable.='&nbsp;</td>'.
 4654: 	    &Apache::loncommon::end_data_table_row();
 4655:     }
 4656:     $studentTable.=&Apache::loncommon::end_data_table();
 4657:     return $studentTable;
 4658: }
 4659: 
 4660: sub updateGradeByPage {
 4661:     my ($request) = shift;
 4662: 
 4663:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4664:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4665:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4666:     my $pageTitle = $env{'form.page'};
 4667:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4668:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4669:     my $usec=$classlist->{$env{'form.student'}}[5];
 4670:     if (!&canmodify($usec)) {
 4671: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
 4672: 	$request->print(&show_grading_menu_form($env{'form.symb'}));
 4673: 	return;
 4674:     }
 4675:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4676:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 4677: 	'</h3>'."\n";
 4678: 
 4679:     $request->print($result);
 4680: 
 4681: 
 4682:     my $navmap = Apache::lonnavmaps::navmap->new();
 4683:     unless (ref($navmap)) {
 4684:         $request->print(&navmap_errormsg());
 4685:         return;
 4686:     }
 4687:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
 4688:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4689:     if (!$map) {
 4690: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
 4691: 	my ($symb)=&get_symb($request);
 4692: 	$request->print(&show_grading_menu_form($symb));
 4693: 	return; 
 4694:     }
 4695:     my $iterator = $navmap->getIterator($map->map_start(),
 4696: 					$map->map_finish());
 4697: 
 4698:     my $studentTable=
 4699: 	&Apache::loncommon::start_data_table().
 4700: 	&Apache::loncommon::start_data_table_header_row().
 4701: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
 4702: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
 4703: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
 4704: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
 4705: 	&Apache::loncommon::end_data_table_header_row();
 4706: 
 4707:     $iterator->next(); # skip the first BEGIN_MAP
 4708:     my $curRes = $iterator->next(); # for "current resource"
 4709:     my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
 4710:     while ($depth > 0) {
 4711:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4712:         if($curRes == $iterator->END_MAP) { $depth--; }
 4713: 
 4714:         if (ref($curRes) && $curRes->is_problem()) {
 4715: 	    my $parts = $curRes->parts();
 4716:             my $title = $curRes->compTitle();
 4717: 	    my $symbx = $curRes->symb();
 4718: 	    $studentTable.=
 4719: 		&Apache::loncommon::start_data_table_row().
 4720: 		'<td align="center" valign="top" >'.$prob.
 4721: 		(scalar(@{$parts}) == 1 ? '' 
 4722:                                         : '<br />('.&mt('[quant,_1,&nbsp;part]',scalar(@{$parts}))
 4723: 		.')').'</td>';
 4724: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 4725: 
 4726: 	    my %newrecord=();
 4727: 	    my @displayPts=();
 4728:             my %aggregate = ();
 4729:             my $aggregateflag = 0;
 4730: 	    foreach my $partid (@{$parts}) {
 4731: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 4732: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
 4733: 
 4734: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 4735: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
 4736: 		my $partial = $newpts/$wgt;
 4737: 		my $score;
 4738: 		if ($partial > 0) {
 4739: 		    $score = 'correct_by_override';
 4740: 		} elsif ($newpts ne '') { #empty is taken as 0
 4741: 		    $score = 'incorrect_by_override';
 4742: 		}
 4743: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
 4744: 		if ($dropMenu eq 'excused') {
 4745: 		    $partial = '';
 4746: 		    $score = 'excused';
 4747: 		} elsif ($dropMenu eq 'reset status'
 4748: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 4749: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
 4750: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
 4751: 		    $newrecord{'resource.'.$partid.'.award'} = '';
 4752: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
 4753: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
 4754: 		    $changeflag++;
 4755: 		    $newpts = '';
 4756:                     
 4757:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
 4758:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
 4759:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
 4760:                     if ($aggtries > 0) {
 4761:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 4762:                         $aggregateflag = 1;
 4763:                     }
 4764: 		}
 4765: 		my $display_part=&get_display_part($partid,$curRes->symb());
 4766: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
 4767: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 4768: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
 4769: 		    '&nbsp;<br />';
 4770: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 4771: 		     (($score eq 'excused') ? 'excused' : $newpts).
 4772: 		    '&nbsp;<br />';
 4773: 		$question++;
 4774: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 4775: 
 4776: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
 4777: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
 4778: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
 4779: 		    if (scalar(keys(%newrecord)) > 0);
 4780: 
 4781: 		$changeflag++;
 4782: 	    }
 4783: 	    if (scalar(keys(%newrecord)) > 0) {
 4784: 		my %record = 
 4785: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
 4786: 					     $udom,$uname);
 4787: 
 4788: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
 4789: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
 4790: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
 4791: 		    $newrecord{'resource.CODE'} = '';
 4792: 		}
 4793: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
 4794: 					$udom,$uname);
 4795: 		%record = &Apache::lonnet::restore($symbx,
 4796: 						   $env{'request.course.id'},
 4797: 						   $udom,$uname);
 4798: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
 4799: 					     $cdom,$cnum,$udom,$uname);
 4800: 	    }
 4801: 	    
 4802:             if ($aggregateflag) {
 4803:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 4804:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
 4805:                       $env{'course.'.$env{'request.course.id'}.'.num'});
 4806:             }
 4807: 
 4808: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
 4809: 		'<td valign="top">'.$displayPts[1].'</td>'.
 4810: 		&Apache::loncommon::end_data_table_row();
 4811: 
 4812: 	    $prob++;
 4813: 	}
 4814:         $curRes = $iterator->next();
 4815:     }
 4816: 
 4817:     $studentTable.=&Apache::loncommon::end_data_table();
 4818:     $studentTable.=&show_grading_menu_form($env{'form.symb'});
 4819:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 4820: 		  &mt('The scores were changed for [quant,_1,problem].',
 4821: 		  $changeflag));
 4822:     $request->print($grademsg.$studentTable);
 4823: 
 4824:     return '';
 4825: }
 4826: 
 4827: #-------- end of section for handling grading by page/sequence ---------
 4828: #
 4829: #-------------------------------------------------------------------
 4830: 
 4831: #-------------------- Bubblesheet (Scantron) Grading -------------------
 4832: #
 4833: #------ start of section for handling grading by page/sequence ---------
 4834: 
 4835: =pod
 4836: 
 4837: =head1 Bubble sheet grading routines
 4838: 
 4839:   For this documentation:
 4840: 
 4841:    'scanline' refers to the full line of characters
 4842:    from the file that we are parsing that represents one entire sheet
 4843: 
 4844:    'bubble line' refers to the data
 4845:    representing the line of bubbles that are on the physical bubble sheet
 4846: 
 4847: 
 4848: The overall process is that a scanned in bubble sheet data is uploaded
 4849: into a course. When a user wants to grade, they select a
 4850: sequence/folder of resources, a file of bubble sheet info, and pick
 4851: one of the predefined configurations for what each scanline looks
 4852: like.
 4853: 
 4854: Next each scanline is checked for any errors of either 'missing
 4855: bubbles' (it's an error because it may have been mis-scanned
 4856: because too light bubbling), 'double bubble' (each bubble line should
 4857: have no more that one letter picked), invalid or duplicated CODE,
 4858: invalid student/employee ID
 4859: 
 4860: If the CODE option is used that determines the randomization of the
 4861: homework problems, either way the student/employee ID is looked up into a
 4862: username:domain.
 4863: 
 4864: During the validation phase the instructor can choose to skip scanlines. 
 4865: 
 4866: After the validation phase, there are now 3 bubble sheet files
 4867: 
 4868:   scantron_original_filename (unmodified original file)
 4869:   scantron_corrected_filename (file where the corrected information has replaced the original information)
 4870:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 4871: 
 4872: Also there is a separate hash nohist_scantrondata that contains extra
 4873: correction information that isn't representable in the bubble sheet
 4874: file (see &scantron_getfile() for more information)
 4875: 
 4876: After all scanlines are either valid, marked as valid or skipped, then
 4877: foreach line foreach problem in the picked sequence, an ssi request is
 4878: made that simulates a user submitting their selected letter(s) against
 4879: the homework problem.
 4880: 
 4881: =over 4
 4882: 
 4883: 
 4884: 
 4885: =item defaultFormData
 4886: 
 4887:   Returns html hidden inputs used to hold context/default values.
 4888: 
 4889:  Arguments:
 4890:   $symb - $symb of the current resource 
 4891: 
 4892: =cut
 4893: 
 4894: sub defaultFormData {
 4895:     my ($symb)=@_;
 4896:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4897:      '<input type="hidden" name="saveState" value="'.$env{'form.saveState'}.'" />'."\n".
 4898:      '<input type="hidden" name="probTitle" value="'.$env{'form.probTitle'}.'" />'."\n";
 4899: }
 4900: 
 4901: 
 4902: =pod 
 4903: 
 4904: =item getSequenceDropDown
 4905: 
 4906:    Return html dropdown of possible sequences to grade
 4907:  
 4908:  Arguments:
 4909:    $symb - $symb of the current resource
 4910:    $map_error - ref to scalar which will container error if
 4911:                 $navmap object is unavailable in &getSymbMap().
 4912: 
 4913: =cut
 4914: 
 4915: sub getSequenceDropDown {
 4916:     my ($symb,$map_error)=@_;
 4917:     my $result='<select name="selectpage">'."\n";
 4918:     my ($titles,$symbx) = &getSymbMap($map_error);
 4919:     if (ref($map_error)) {
 4920:         return if ($$map_error);
 4921:     }
 4922:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
 4923:     my $ctr=0;
 4924:     foreach (@$titles) {
 4925: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4926: 	$result.='<option value="'.$$symbx{$_}.'" '.
 4927: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 4928: 	    '>'.$showtitle.'</option>'."\n";
 4929: 	$ctr++;
 4930:     }
 4931:     $result.= '</select>';
 4932:     return $result;
 4933: }
 4934: 
 4935: my %bubble_lines_per_response;     # no. bubble lines for each response.
 4936:                                    # key is zero-based index - 0, 1, 2 ...
 4937: 
 4938: my %first_bubble_line;             # First bubble line no. for each bubble.
 4939: 
 4940: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
 4941:                                    # matchresponse or rankresponse, where 
 4942:                                    # an individual response can have multiple 
 4943:                                    # lines
 4944: 
 4945: my %responsetype_per_response;     # responsetype for each response
 4946: 
 4947: # Save and restore the bubble lines array to the form env.
 4948: 
 4949: 
 4950: sub save_bubble_lines {
 4951:     foreach my $line (keys(%bubble_lines_per_response)) {
 4952: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
 4953: 	$env{"form.scantron.first_bubble_line.$line"} =
 4954: 	    $first_bubble_line{$line};
 4955:         $env{"form.scantron.sub_bubblelines.$line"} = 
 4956:             $subdivided_bubble_lines{$line};
 4957:         $env{"form.scantron.responsetype.$line"} =
 4958:             $responsetype_per_response{$line};
 4959:     }
 4960: }
 4961: 
 4962: 
 4963: sub restore_bubble_lines {
 4964:     my $line = 0;
 4965:     %bubble_lines_per_response = ();
 4966:     while ($env{"form.scantron.bubblelines.$line"}) {
 4967: 	my $value = $env{"form.scantron.bubblelines.$line"};
 4968: 	$bubble_lines_per_response{$line} = $value;
 4969: 	$first_bubble_line{$line}  =
 4970: 	    $env{"form.scantron.first_bubble_line.$line"};
 4971:         $subdivided_bubble_lines{$line} =
 4972:             $env{"form.scantron.sub_bubblelines.$line"};
 4973:         $responsetype_per_response{$line} =
 4974:             $env{"form.scantron.responsetype.$line"};
 4975: 	$line++;
 4976:     }
 4977: }
 4978: 
 4979: #  Given the parsed scanline, get the response for 
 4980: #  'answer' number n:
 4981: 
 4982: sub get_response_bubbles {
 4983:     my ($parsed_line, $response)  = @_;
 4984: 
 4985:     my $bubble_line = $first_bubble_line{$response-1} +1;
 4986:     my $bubble_lines= $bubble_lines_per_response{$response-1};
 4987:     
 4988:     my $selected = "";
 4989: 
 4990:     for (my $bline = 0; $bline < $bubble_lines; $bline++) {
 4991: 	$selected .= $$parsed_line{"scantron.$bubble_line.answer"}.":";
 4992: 	$bubble_line++;
 4993:     }
 4994:     return $selected;
 4995: }
 4996: 
 4997: =pod 
 4998: 
 4999: =item scantron_filenames
 5000: 
 5001:    Returns a list of the scantron files in the current course 
 5002: 
 5003: =cut
 5004: 
 5005: sub scantron_filenames {
 5006:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 5007:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 5008:     my $getpropath = 1;
 5009:     my @files=&Apache::lonnet::dirlist('userfiles',$cdom,$cname,
 5010:                                        $getpropath);
 5011:     my @possiblenames;
 5012:     foreach my $filename (sort(@files)) {
 5013: 	($filename)=split(/&/,$filename);
 5014: 	if ($filename!~/^scantron_orig_/) { next ; }
 5015: 	$filename=~s/^scantron_orig_//;
 5016: 	push(@possiblenames,$filename);
 5017:     }
 5018:     return @possiblenames;
 5019: }
 5020: 
 5021: =pod 
 5022: 
 5023: =item scantron_uploads
 5024: 
 5025:    Returns  html drop-down list of scantron files in current course.
 5026: 
 5027:  Arguments:
 5028:    $file2grade - filename to set as selected in the dropdown
 5029: 
 5030: =cut
 5031: 
 5032: sub scantron_uploads {
 5033:     my ($file2grade) = @_;
 5034:     my $result=	'<select name="scantron_selectfile">';
 5035:     $result.="<option></option>";
 5036:     foreach my $filename (sort(&scantron_filenames())) {
 5037: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
 5038:     }
 5039:     $result.="</select>";
 5040:     return $result;
 5041: }
 5042: 
 5043: =pod 
 5044: 
 5045: =item scantron_scantab
 5046: 
 5047:   Returns html drop down of the scantron formats in the scantronformat.tab
 5048:   file.
 5049: 
 5050: =cut
 5051: 
 5052: sub scantron_scantab {
 5053:     my $result='<select name="scantron_format">'."\n";
 5054:     $result.='<option></option>'."\n";
 5055:     my @lines = &get_scantronformat_file();
 5056:     if (@lines > 0) {
 5057:         foreach my $line (@lines) {
 5058:             next if (($line =~ /^\#/) || ($line eq ''));
 5059: 	    my ($name,$descrip)=split(/:/,$line);
 5060: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
 5061:         }
 5062:     }
 5063:     $result.='</select>'."\n";
 5064:     return $result;
 5065: }
 5066: 
 5067: =pod
 5068: 
 5069: =item get_scantronformat_file
 5070: 
 5071:   Returns an array containing lines from the scantron format file for
 5072:   the domain of the course.
 5073: 
 5074:   If a url for a custom.tab file is listed in domain's configuration.db, 
 5075:   lines are from this file.
 5076: 
 5077:   Otherwise, if a default.tab has been published in RES space by the 
 5078:   domainconfig user, lines are from this file.
 5079: 
 5080:   Otherwise, fall back to getting lines from the legacy file on the
 5081:   local server:  /home/httpd/lonTabs/default_scantronformat.tab    
 5082: 
 5083: =cut
 5084: 
 5085: sub get_scantronformat_file {
 5086:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5087:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$cdom);
 5088:     my $gottab = 0;
 5089:     my @lines;
 5090:     if (ref($domconfig{'scantron'}) eq 'HASH') {
 5091:         if ($domconfig{'scantron'}{'scantronformat'} ne '') {
 5092:             my $formatfile = &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
 5093:             if ($formatfile ne '-1') {
 5094:                 @lines = split("\n",$formatfile,-1);
 5095:                 $gottab = 1;
 5096:             }
 5097:         }
 5098:     }
 5099:     if (!$gottab) {
 5100:         my $confname = $cdom.'-domainconfig';
 5101:         my $default = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
 5102:         my $formatfile =  &Apache::lonnet::getfile($default);
 5103:         if ($formatfile ne '-1') {
 5104:             @lines = split("\n",$formatfile,-1);
 5105:             $gottab = 1;
 5106:         }
 5107:     }
 5108:     if (!$gottab) {
 5109:         my @domains = &Apache::lonnet::current_machine_domains();
 5110:         if (grep(/^\Q$cdom\E$/,@domains)) {
 5111:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
 5112:             @lines = <$fh>;
 5113:             close($fh);
 5114:         } else {
 5115:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab');
 5116:             @lines = <$fh>;
 5117:             close($fh);
 5118:         }
 5119:     }
 5120:     return @lines;
 5121: }
 5122: 
 5123: =pod 
 5124: 
 5125: =item scantron_CODElist
 5126: 
 5127:   Returns html drop down of the saved CODE lists from current course,
 5128:   generated from earlier printings.
 5129: 
 5130: =cut
 5131: 
 5132: sub scantron_CODElist {
 5133:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 5134:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 5135:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 5136:     my $namechoice='<option></option>';
 5137:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 5138: 	if ($name =~ /^error: 2 /) { next; }
 5139: 	if ($name =~ /^type\0/) { next; }
 5140: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
 5141:     }
 5142:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
 5143:     return $namechoice;
 5144: }
 5145: 
 5146: =pod 
 5147: 
 5148: =item scantron_CODEunique
 5149: 
 5150:   Returns the html for "Each CODE to be used once" radio.
 5151: 
 5152: =cut
 5153: 
 5154: sub scantron_CODEunique {
 5155:     my $result='<span class="LC_nobreak">
 5156:                  <label><input type="radio" name="scantron_CODEunique"
 5157:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
 5158:                 </span>
 5159:                 <span class="LC_nobreak">
 5160:                  <label><input type="radio" name="scantron_CODEunique"
 5161:                         value="no" />'.&mt('No').' </label>
 5162:                 </span>';
 5163:     return $result;
 5164: }
 5165: 
 5166: =pod 
 5167: 
 5168: =item scantron_selectphase
 5169: 
 5170:   Generates the initial screen to start the bubble sheet process.
 5171:   Allows for - starting a grading run.
 5172:              - downloading existing scan data (original, corrected
 5173:                                                 or skipped info)
 5174: 
 5175:              - uploading new scan data
 5176: 
 5177:  Arguments:
 5178:   $r          - The Apache request object
 5179:   $file2grade - name of the file that contain the scanned data to score
 5180: 
 5181: =cut
 5182: 
 5183: sub scantron_selectphase {
 5184:     my ($r,$file2grade) = @_;
 5185:     my ($symb)=&get_symb($r);
 5186:     if (!$symb) {return '';}
 5187:     my $map_error;
 5188:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
 5189:     if ($map_error) {
 5190:         $r->print('<br />'.&navmap_errormsg().'<br />');
 5191:         return;
 5192:     }
 5193:     my $default_form_data=&defaultFormData($symb);
 5194:     my $grading_menu_button=&show_grading_menu_form($symb);
 5195:     my $file_selector=&scantron_uploads($file2grade);
 5196:     my $format_selector=&scantron_scantab();
 5197:     my $CODE_selector=&scantron_CODElist();
 5198:     my $CODE_unique=&scantron_CODEunique();
 5199:     my $result;
 5200: 
 5201:     $ssi_error = 0;
 5202: 
 5203:     # Chunk of form to prompt for a file to grade and how:
 5204: 
 5205:     $result.= '
 5206:     <br />
 5207:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
 5208:     <input type="hidden" name="command" value="scantron_warning" />
 5209:     '.$default_form_data.'
 5210:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5211:        '.&Apache::loncommon::start_data_table_header_row().'
 5212:             <th colspan="2">
 5213:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
 5214:             </th>
 5215:        '.&Apache::loncommon::end_data_table_header_row().'
 5216:        '.&Apache::loncommon::start_data_table_row().'
 5217:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
 5218:        '.&Apache::loncommon::end_data_table_row().'
 5219:        '.&Apache::loncommon::start_data_table_row().'
 5220:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
 5221:        '.&Apache::loncommon::end_data_table_row().'
 5222:        '.&Apache::loncommon::start_data_table_row().'
 5223:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
 5224:        '.&Apache::loncommon::end_data_table_row().'
 5225:        '.&Apache::loncommon::start_data_table_row().'
 5226:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
 5227:        '.&Apache::loncommon::end_data_table_row().'
 5228:        '.&Apache::loncommon::start_data_table_row().'
 5229:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
 5230:        '.&Apache::loncommon::end_data_table_row().'
 5231:        '.&Apache::loncommon::start_data_table_row().'
 5232: 	    <td> '.&mt('Options:').' </td>
 5233:             <td>
 5234: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
 5235:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
 5236:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
 5237: 	    </td>
 5238:        '.&Apache::loncommon::end_data_table_row().'
 5239:        '.&Apache::loncommon::start_data_table_row().'
 5240:             <td colspan="2">
 5241:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
 5242:             </td>
 5243:        '.&Apache::loncommon::end_data_table_row().'
 5244:     '.&Apache::loncommon::end_data_table().'
 5245:     </form>
 5246: ';
 5247:    
 5248:     $r->print($result);
 5249: 
 5250:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
 5251:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 5252: 
 5253: 	# Chunk of form to prompt for a scantron file upload.
 5254: 
 5255:         $r->print('
 5256:     <br />
 5257:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5258:        '.&Apache::loncommon::start_data_table_header_row().'
 5259:             <th>
 5260:               &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
 5261:             </th>
 5262:        '.&Apache::loncommon::end_data_table_header_row().'
 5263:        '.&Apache::loncommon::start_data_table_row().'
 5264:             <td>
 5265: ');
 5266:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 5267:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5268:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
 5269:     $r->print('
 5270:               <script type="text/javascript" language="javascript">
 5271:     function checkUpload(formname) {
 5272: 	if (formname.upfile.value == "") {
 5273: 	    alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
 5274: 	    return false;
 5275: 	}
 5276: 	formname.submit();
 5277:     }
 5278:               </script>
 5279: 
 5280:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 5281:                 '.$default_form_data.'
 5282:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
 5283:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
 5284:                 <input name="command" value="scantronupload_save" type="hidden" />
 5285:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'
 5286:                 <br />
 5287:                 <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 5288:               </form>
 5289: ');
 5290: 
 5291:         $r->print('
 5292:             </td>
 5293:        '.&Apache::loncommon::end_data_table_row().'
 5294:        '.&Apache::loncommon::end_data_table().'
 5295: ');
 5296:     }
 5297: 
 5298:     # Chunk of the form that prompts to view a scoring office file,
 5299:     # corrected file, skipped records in a file.
 5300: 
 5301:     $r->print('
 5302:    <br />
 5303:    <form action="/adm/grades" name="scantron_download">
 5304:      '.$default_form_data.'
 5305:      <input type="hidden" name="command" value="scantron_download" />
 5306:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5307:        '.&Apache::loncommon::start_data_table_header_row().'
 5308:               <th>
 5309:                 &nbsp;'.&mt('Download a scoring office file').'
 5310:               </th>
 5311:        '.&Apache::loncommon::end_data_table_header_row().'
 5312:        '.&Apache::loncommon::start_data_table_row().'
 5313:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
 5314:                 <br />
 5315:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
 5316:        '.&Apache::loncommon::end_data_table_row().'
 5317:      '.&Apache::loncommon::end_data_table().'
 5318:    </form>
 5319:    <br />
 5320: ');
 5321: 
 5322:     &Apache::lonpickcode::code_list($r,2);
 5323: 
 5324:     $r->print('<br /><form method="post" name="checkscantron">'.
 5325:              $default_form_data."\n".
 5326:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
 5327:              &Apache::loncommon::start_data_table_header_row()."\n".
 5328:              '<th colspan="2">
 5329:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
 5330:              '</th>'."\n".
 5331:               &Apache::loncommon::end_data_table_header_row()."\n".
 5332:               &Apache::loncommon::start_data_table_row()."\n".
 5333:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
 5334:               '<td> '.$sequence_selector.' </td>'.
 5335:               &Apache::loncommon::end_data_table_row()."\n".
 5336:               &Apache::loncommon::start_data_table_row()."\n".
 5337:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
 5338:               '<td> '.$file_selector.' </td>'."\n".
 5339:               &Apache::loncommon::end_data_table_row()."\n".
 5340:               &Apache::loncommon::start_data_table_row()."\n".
 5341:               '<td> '.&mt('Format of data file:').' </td>'."\n".
 5342:               '<td> '.$format_selector.' </td>'."\n".
 5343:               &Apache::loncommon::end_data_table_row()."\n".
 5344:               &Apache::loncommon::start_data_table_row()."\n".
 5345:               '<td> '.&mt('Options').' </td>'."\n".
 5346:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
 5347:               &Apache::loncommon::end_data_table_row()."\n".
 5348:               &Apache::loncommon::start_data_table_row()."\n".
 5349:               '<td colspan="2">'."\n".
 5350:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
 5351:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
 5352:               '</td>'."\n".
 5353:               &Apache::loncommon::end_data_table_row()."\n".
 5354:               &Apache::loncommon::end_data_table()."\n".
 5355:               '</form><br />');
 5356:     $r->print($grading_menu_button);
 5357:     return;
 5358: }
 5359: 
 5360: =pod
 5361: 
 5362: =item get_scantron_config
 5363: 
 5364:    Parse and return the scantron configuration line selected as a
 5365:    hash of configuration file fields.
 5366: 
 5367:  Arguments:
 5368:     which - the name of the configuration to parse from the file.
 5369: 
 5370: 
 5371:  Returns:
 5372:             If the named configuration is not in the file, an empty
 5373:             hash is returned.
 5374:     a hash with the fields
 5375:       name         - internal name for the this configuration setup
 5376:       description  - text to display to operator that describes this config
 5377:       CODElocation - if 0 or the string 'none'
 5378:                           - no CODE exists for this config
 5379:                      if -1 || the string 'letter'
 5380:                           - a CODE exists for this config and is
 5381:                             a string of letters
 5382:                      Unsupported value (but planned for future support)
 5383:                           if a positive integer
 5384:                                - The CODE exists as the first n items from
 5385:                                  the question section of the form
 5386:                           if the string 'number'
 5387:                                - The CODE exists for this config and is
 5388:                                  a string of numbers
 5389:       CODEstart   - (only matter if a CODE exists) column in the line where
 5390:                      the CODE starts
 5391:       CODElength  - length of the CODE
 5392:       IDstart     - column where the student/employee ID starts
 5393:       IDlength    - length of the student/employee ID info
 5394:       Qstart      - column where the information from the bubbled
 5395:                     'questions' start
 5396:       Qlength     - number of columns comprising a single bubble line from
 5397:                     the sheet. (usually either 1 or 10)
 5398:       Qon         - either a single character representing the character used
 5399:                     to signal a bubble was chosen in the positional setup, or
 5400:                     the string 'letter' if the letter of the chosen bubble is
 5401:                     in the final, or 'number' if a number representing the
 5402:                     chosen bubble is in the file (1->A 0->J)
 5403:       Qoff        - the character used to represent that a bubble was
 5404:                     left blank
 5405:       PaperID     - if the scanning process generates a unique number for each
 5406:                     sheet scanned the column that this ID number starts in
 5407:       PaperIDlength - number of columns that comprise the unique ID number
 5408:                       for the sheet of paper
 5409:       FirstName   - column that the first name starts in
 5410:       FirstNameLength - number of columns that the first name spans
 5411:  
 5412:       LastName    - column that the last name starts in
 5413:       LastNameLength - number of columns that the last name spans
 5414: 
 5415: =cut
 5416: 
 5417: sub get_scantron_config {
 5418:     my ($which) = @_;
 5419:     my @lines = &get_scantronformat_file();
 5420:     my %config;
 5421:     #FIXME probably should move to XML it has already gotten a bit much now
 5422:     foreach my $line (@lines) {
 5423: 	my ($name,$descrip)=split(/:/,$line);
 5424: 	if ($name ne $which ) { next; }
 5425: 	chomp($line);
 5426: 	my @config=split(/:/,$line);
 5427: 	$config{'name'}=$config[0];
 5428: 	$config{'description'}=$config[1];
 5429: 	$config{'CODElocation'}=$config[2];
 5430: 	$config{'CODEstart'}=$config[3];
 5431: 	$config{'CODElength'}=$config[4];
 5432: 	$config{'IDstart'}=$config[5];
 5433: 	$config{'IDlength'}=$config[6];
 5434: 	$config{'Qstart'}=$config[7];
 5435:  	$config{'Qlength'}=$config[8];
 5436: 	$config{'Qoff'}=$config[9];
 5437: 	$config{'Qon'}=$config[10];
 5438: 	$config{'PaperID'}=$config[11];
 5439: 	$config{'PaperIDlength'}=$config[12];
 5440: 	$config{'FirstName'}=$config[13];
 5441: 	$config{'FirstNamelength'}=$config[14];
 5442: 	$config{'LastName'}=$config[15];
 5443: 	$config{'LastNamelength'}=$config[16];
 5444: 	last;
 5445:     }
 5446:     return %config;
 5447: }
 5448: 
 5449: =pod 
 5450: 
 5451: =item username_to_idmap
 5452: 
 5453:     creates a hash keyed by student/employee ID with values of the corresponding
 5454:     student username:domain.
 5455: 
 5456:   Arguments:
 5457: 
 5458:     $classlist - reference to the class list hash. This is a hash
 5459:                  keyed by student name:domain  whose elements are references
 5460:                  to arrays containing various chunks of information
 5461:                  about the student. (See loncoursedata for more info).
 5462: 
 5463:   Returns
 5464:     %idmap - the constructed hash
 5465: 
 5466: =cut
 5467: 
 5468: sub username_to_idmap {
 5469:     my ($classlist)= @_;
 5470:     my %idmap;
 5471:     foreach my $student (keys(%$classlist)) {
 5472: 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
 5473: 	    $student;
 5474:     }
 5475:     return %idmap;
 5476: }
 5477: 
 5478: =pod
 5479: 
 5480: =item scantron_fixup_scanline
 5481: 
 5482:    Process a requested correction to a scanline.
 5483: 
 5484:   Arguments:
 5485:     $scantron_config   - hash from &get_scantron_config()
 5486:     $scan_data         - hash of correction information 
 5487:                           (see &scantron_getfile())
 5488:     $line              - existing scanline
 5489:     $whichline         - line number of the passed in scanline
 5490:     $field             - type of change to process 
 5491:                          (either 
 5492:                           'ID'     -> correct the student/employee ID
 5493:                           'CODE'   -> correct the CODE
 5494:                           'answer' -> fixup the submitted answers)
 5495:     
 5496:    $args               - hash of additional info,
 5497:                           - 'ID' 
 5498:                                'newid' -> studentID to use in replacement
 5499:                                           of existing one
 5500:                           - 'CODE' 
 5501:                                'CODE_ignore_dup' - set to true if duplicates
 5502:                                                    should be ignored.
 5503: 	                       'CODE' - is new code or 'use_unfound'
 5504:                                         if the existing unfound code should
 5505:                                         be used as is
 5506:                           - 'answer'
 5507:                                'response' - new answer or 'none' if blank
 5508:                                'question' - the bubble line to change
 5509:                                'questionnum' - the question identifier,
 5510:                                                may include subquestion. 
 5511: 
 5512:   Returns:
 5513:     $line - the modified scanline
 5514: 
 5515:   Side effects: 
 5516:     $scan_data - may be updated
 5517: 
 5518: =cut
 5519: 
 5520: 
 5521: sub scantron_fixup_scanline {
 5522:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
 5523:     if ($field eq 'ID') {
 5524: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
 5525: 	    return ($line,1,'New value too large');
 5526: 	}
 5527: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
 5528: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
 5529: 				     $args->{'newid'});
 5530: 	}
 5531: 	substr($line,$$scantron_config{'IDstart'}-1,
 5532: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
 5533: 	if ($args->{'newid'}=~/^\s*$/) {
 5534: 	    &scan_data($scan_data,"$whichline.user",
 5535: 		       $args->{'username'}.':'.$args->{'domain'});
 5536: 	}
 5537:     } elsif ($field eq 'CODE') {
 5538: 	if ($args->{'CODE_ignore_dup'}) {
 5539: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
 5540: 	}
 5541: 	&scan_data($scan_data,"$whichline.useCODE",'1');
 5542: 	if ($args->{'CODE'} ne 'use_unfound') {
 5543: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
 5544: 		return ($line,1,'New CODE value too large');
 5545: 	    }
 5546: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
 5547: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
 5548: 	    }
 5549: 	    substr($line,$$scantron_config{'CODEstart'}-1,
 5550: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
 5551: 	}
 5552:     } elsif ($field eq 'answer') {
 5553: 	my $length=$scantron_config->{'Qlength'};
 5554: 	my $off=$scantron_config->{'Qoff'};
 5555: 	my $on=$scantron_config->{'Qon'};
 5556: 	my $answer=${off}x$length;
 5557: 	if ($args->{'response'} eq 'none') {
 5558: 	    &scan_data($scan_data,
 5559: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
 5560: 	} else {
 5561: 	    if ($on eq 'letter') {
 5562: 		my @alphabet=('A'..'Z');
 5563: 		$answer=$alphabet[$args->{'response'}];
 5564: 	    } elsif ($on eq 'number') {
 5565: 		$answer=$args->{'response'}+1;
 5566: 		if ($answer == 10) { $answer = '0'; }
 5567: 	    } else {
 5568: 		substr($answer,$args->{'response'},1)=$on;
 5569: 	    }
 5570: 	    &scan_data($scan_data,
 5571: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
 5572: 	}
 5573: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
 5574: 	substr($line,$where-1,$length)=$answer;
 5575:     }
 5576:     return $line;
 5577: }
 5578: 
 5579: =pod
 5580: 
 5581: =item scan_data
 5582: 
 5583:     Edit or look up  an item in the scan_data hash.
 5584: 
 5585:   Arguments:
 5586:     $scan_data  - The hash (see scantron_getfile)
 5587:     $key        - shorthand of the key to edit (actual key is
 5588:                   scantronfilename_key).
 5589:     $data        - New value of the hash entry.
 5590:     $delete      - If true, the entry is removed from the hash.
 5591: 
 5592:   Returns:
 5593:     The new value of the hash table field (undefined if deleted).
 5594: 
 5595: =cut
 5596: 
 5597: 
 5598: sub scan_data {
 5599:     my ($scan_data,$key,$value,$delete)=@_;
 5600:     my $filename=$env{'form.scantron_selectfile'};
 5601:     if (defined($value)) {
 5602: 	$scan_data->{$filename.'_'.$key} = $value;
 5603:     }
 5604:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
 5605:     return $scan_data->{$filename.'_'.$key};
 5606: }
 5607: 
 5608: # ----- These first few routines are general use routines.----
 5609: 
 5610: # Return the number of occurences of a pattern in a string.
 5611: 
 5612: sub occurence_count {
 5613:     my ($string, $pattern) = @_;
 5614: 
 5615:     my @matches = ($string =~ /$pattern/g);
 5616: 
 5617:     return scalar(@matches);
 5618: }
 5619: 
 5620: 
 5621: # Take a string known to have digits and convert all the
 5622: # digits into letters in the range J,A..I.
 5623: 
 5624: sub digits_to_letters {
 5625:     my ($input) = @_;
 5626: 
 5627:     my @alphabet = ('J', 'A'..'I');
 5628: 
 5629:     my @input    = split(//, $input);
 5630:     my $output ='';
 5631:     for (my $i = 0; $i < scalar(@input); $i++) {
 5632: 	if ($input[$i] =~ /\d/) {
 5633: 	    $output .= $alphabet[$input[$i]];
 5634: 	} else {
 5635: 	    $output .= $input[$i];
 5636: 	}
 5637:     }
 5638:     return $output;
 5639: }
 5640: 
 5641: =pod 
 5642: 
 5643: =item scantron_parse_scanline
 5644: 
 5645:   Decodes a scanline from the selected scantron file
 5646: 
 5647:  Arguments:
 5648:     line             - The text of the scantron file line to process
 5649:     whichline        - Line number
 5650:     scantron_config  - Hash describing the format of the scantron lines.
 5651:     scan_data        - Hash of extra information about the scanline
 5652:                        (see scantron_getfile for more information)
 5653:     just_header      - True if should not process question answers but only
 5654:                        the stuff to the left of the answers.
 5655:  Returns:
 5656:    Hash containing the result of parsing the scanline
 5657: 
 5658:    Keys are all proceeded by the string 'scantron.'
 5659: 
 5660:        CODE    - the CODE in use for this scanline
 5661:        useCODE - 1 if the CODE is invalid but it usage has been forced
 5662:                  by the operator
 5663:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
 5664:                             CODEs were selected, but the usage has been
 5665:                             forced by the operator
 5666:        ID  - student/employee ID
 5667:        PaperID - if used, the ID number printed on the sheet when the 
 5668:                  paper was scanned
 5669:        FirstName - first name from the sheet
 5670:        LastName  - last name from the sheet
 5671: 
 5672:      if just_header was not true these key may also exist
 5673: 
 5674:        missingerror - a list of bubble ranges that are considered to be answers
 5675:                       to a single question that don't have any bubbles filled in.
 5676:                       Of the form questionnumber:firstbubblenumber:count.
 5677:        doubleerror  - a list of bubble ranges that are considered to be answers
 5678:                       to a single question that have more than one bubble filled in.
 5679:                       Of the form questionnumber::firstbubblenumber:count
 5680:    
 5681:                 In the above, count is the number of bubble responses in the
 5682:                 input line needed to represent the possible answers to the question.
 5683:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
 5684:                 per line would have count = 2.
 5685: 
 5686:        maxquest     - the number of the last bubble line that was parsed
 5687: 
 5688:        (<number> starts at 1)
 5689:        <number>.answer - zero or more letters representing the selected
 5690:                          letters from the scanline for the bubble line 
 5691:                          <number>.
 5692:                          if blank there was either no bubble or there where
 5693:                          multiple bubbles, (consult the keys missingerror and
 5694:                          doubleerror if this is an error condition)
 5695: 
 5696: =cut
 5697: 
 5698: sub scantron_parse_scanline {
 5699:     my ($line,$whichline,$scantron_config,$scan_data,$just_header)=@_;
 5700: 
 5701:     my %record;
 5702:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
 5703:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
 5704:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1);     # earlier stuff
 5705:     if (!($$scantron_config{'CODElocation'} eq 0 ||
 5706: 	  $$scantron_config{'CODElocation'} eq 'none')) {
 5707: 	if ($$scantron_config{'CODElocation'} < 0 ||
 5708: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
 5709: 	    $$scantron_config{'CODElocation'} eq 'number') {
 5710: 	    $record{'scantron.CODE'}=substr($data,
 5711: 					    $$scantron_config{'CODEstart'}-1,
 5712: 					    $$scantron_config{'CODElength'});
 5713: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
 5714: 		$record{'scantron.useCODE'}=1;
 5715: 	    }
 5716: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
 5717: 		$record{'scantron.CODE_ignore_dup'}=1;
 5718: 	    }
 5719: 	} else {
 5720: 	    #FIXME interpret first N questions
 5721: 	}
 5722:     }
 5723:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
 5724: 				  $$scantron_config{'IDlength'});
 5725:     $record{'scantron.PaperID'}=
 5726: 	substr($data,$$scantron_config{'PaperID'}-1,
 5727: 	       $$scantron_config{'PaperIDlength'});
 5728:     $record{'scantron.FirstName'}=
 5729: 	substr($data,$$scantron_config{'FirstName'}-1,
 5730: 	       $$scantron_config{'FirstNamelength'});
 5731:     $record{'scantron.LastName'}=
 5732: 	substr($data,$$scantron_config{'LastName'}-1,
 5733: 	       $$scantron_config{'LastNamelength'});
 5734:     if ($just_header) { return \%record; }
 5735: 
 5736:     my @alphabet=('A'..'Z');
 5737:     my $questnum=0;
 5738:     my $ansnum  =1;		# Multiple 'answer lines'/question.
 5739: 
 5740:     chomp($questions);		# Get rid of any trailing \n.
 5741:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
 5742:     while (length($questions)) {
 5743: 	my $answers_needed = $bubble_lines_per_response{$questnum};
 5744:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
 5745:                              || 1;
 5746:         $questnum++;
 5747:         my $quest_id = $questnum;
 5748:         my $currentquest = substr($questions,0,$answer_length);
 5749:         $questions       = substr($questions,$answer_length);
 5750:         if (length($currentquest) < $answer_length) { next; }
 5751: 
 5752:         if ($subdivided_bubble_lines{$questnum-1} =~ /,/) {
 5753:             my $subquestnum = 1;
 5754:             my $subquestions = $currentquest;
 5755:             my @subanswers_needed = 
 5756:                 split(/,/,$subdivided_bubble_lines{$questnum-1});  
 5757:             foreach my $subans (@subanswers_needed) {
 5758:                 my $subans_length =
 5759:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
 5760:                 my $currsubquest = substr($subquestions,0,$subans_length);
 5761:                 $subquestions   = substr($subquestions,$subans_length);
 5762:                 $quest_id = "$questnum.$subquestnum";
 5763:                 if (($$scantron_config{'Qon'} eq 'letter') ||
 5764:                     ($$scantron_config{'Qon'} eq 'number')) {
 5765:                     $ansnum = &scantron_validator_lettnum($ansnum, 
 5766:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 5767:                         \@alphabet,\%record,$scantron_config,$scan_data);
 5768:                 } else {
 5769:                     $ansnum = &scantron_validator_positional($ansnum,
 5770:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,                        \@alphabet,\%record,$scantron_config,$scan_data);
 5771:                 }
 5772:                 $subquestnum ++;
 5773:             }
 5774:         } else {
 5775:             if (($$scantron_config{'Qon'} eq 'letter') ||
 5776:                 ($$scantron_config{'Qon'} eq 'number')) {
 5777:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
 5778:                     $quest_id,$answers_needed,$currentquest,$whichline,
 5779:                     \@alphabet,\%record,$scantron_config,$scan_data);
 5780:             } else {
 5781:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
 5782:                     $quest_id,$answers_needed,$currentquest,$whichline,
 5783:                     \@alphabet,\%record,$scantron_config,$scan_data);
 5784:             }
 5785:         }
 5786:     }
 5787:     $record{'scantron.maxquest'}=$questnum;
 5788:     return \%record;
 5789: }
 5790: 
 5791: sub scantron_validator_lettnum {
 5792:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
 5793:         $alphabet,$record,$scantron_config,$scan_data) = @_;
 5794: 
 5795:     # Qon 'letter' implies for each slot in currquest we have:
 5796:     #    ? or * for doubles, a letter in A-Z for a bubble, and
 5797:     #    about anything else (esp. a value of Qoff) for missing
 5798:     #    bubbles.
 5799:     #
 5800:     # Qon 'number' implies each slot gives a digit that indexes the
 5801:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
 5802:     #    and * or ? for double bubbles on a single line.
 5803:     #
 5804: 
 5805:     my $matchon;
 5806:     if ($$scantron_config{'Qon'} eq 'letter') {
 5807:         $matchon = '[A-Z]';
 5808:     } elsif ($$scantron_config{'Qon'} eq 'number') {
 5809:         $matchon = '\d';
 5810:     }
 5811:     my $occurrences = 0;
 5812:     if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
 5813:         ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
 5814:         ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
 5815:         ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
 5816:         ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
 5817:         ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
 5818:         my @singlelines = split('',$currquest);
 5819:         foreach my $entry (@singlelines) {
 5820:             $occurrences = &occurence_count($entry,$matchon);
 5821:             if ($occurrences > 1) {
 5822:                 last;
 5823:             }
 5824:         } 
 5825:     } else {
 5826:         $occurrences = &occurence_count($currquest,$matchon); 
 5827:     }
 5828:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
 5829:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
 5830:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 5831:             my $bubble = substr($currquest,$ans,1);
 5832:             if ($bubble =~ /$matchon/ ) {
 5833:                 if ($$scantron_config{'Qon'} eq 'number') {
 5834:                     if ($bubble == 0) {
 5835:                         $bubble = 10; 
 5836:                     }
 5837:                     $record->{"scantron.$ansnum.answer"} = 
 5838:                         $alphabet->[$bubble-1];
 5839:                 } else {
 5840:                     $record->{"scantron.$ansnum.answer"} = $bubble;
 5841:                 }
 5842:             } else {
 5843:                 $record->{"scantron.$ansnum.answer"}='';
 5844:             }
 5845:             $ansnum++;
 5846:         }
 5847:     } elsif (!defined($currquest)
 5848:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
 5849:             || (&occurence_count($currquest,$matchon) == 0)) {
 5850:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 5851:             $record->{"scantron.$ansnum.answer"}='';
 5852:             $ansnum++;
 5853:         }
 5854:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 5855:             push(@{$record->{'scantron.missingerror'}},$quest_id);
 5856:         }
 5857:     } else {
 5858:         if ($$scantron_config{'Qon'} eq 'number') {
 5859:             $currquest = &digits_to_letters($currquest);            
 5860:         }
 5861:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 5862:             my $bubble = substr($currquest,$ans,1);
 5863:             $record->{"scantron.$ansnum.answer"} = $bubble;
 5864:             $ansnum++;
 5865:         }
 5866:     }
 5867:     return $ansnum;
 5868: }
 5869: 
 5870: sub scantron_validator_positional {
 5871:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
 5872:         $whichline,$alphabet,$record,$scantron_config,$scan_data) = @_;
 5873: 
 5874:     # Otherwise there's a positional notation;
 5875:     # each bubble line requires Qlength items, and there are filled in
 5876:     # bubbles for each case where there 'Qon' characters.
 5877:     #
 5878: 
 5879:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
 5880: 
 5881:     # If the split only gives us one element.. the full length of the
 5882:     # answer string, no bubbles are filled in:
 5883: 
 5884:     if ($answers_needed eq '') {
 5885:         return;
 5886:     }
 5887: 
 5888:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
 5889:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 5890:             $record->{"scantron.$ansnum.answer"}='';
 5891:             $ansnum++;
 5892:         }
 5893:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 5894:             push(@{$record->{"scantron.missingerror"}},$quest_id);
 5895:         }
 5896:     } elsif (scalar(@array) == 2) {
 5897:         my $location = length($array[0]);
 5898:         my $line_num = int($location / $$scantron_config{'Qlength'});
 5899:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
 5900:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 5901:             if ($ans eq $line_num) {
 5902:                 $record->{"scantron.$ansnum.answer"} = $bubble;
 5903:             } else {
 5904:                 $record->{"scantron.$ansnum.answer"} = ' ';
 5905:             }
 5906:             $ansnum++;
 5907:          }
 5908:     } else {
 5909:         #  If there's more than one instance of a bubble character
 5910:         #  That's a double bubble; with positional notation we can
 5911:         #  record all the bubbles filled in as well as the
 5912:         #  fact this response consists of multiple bubbles.
 5913:         #
 5914:         if (($responsetype_per_response{$questnum-1} eq 'essayresponse') ||
 5915:             ($responsetype_per_response{$questnum-1} eq 'formularesponse') ||
 5916:             ($responsetype_per_response{$questnum-1} eq 'stringresponse') ||
 5917:             ($responsetype_per_response{$questnum-1} eq 'imageresponse') ||
 5918:             ($responsetype_per_response{$questnum-1} eq 'reactionresponse') ||
 5919:             ($responsetype_per_response{$questnum-1} eq 'organicresponse')) {
 5920:             my $doubleerror = 0;
 5921:             while (($currquest >= $$scantron_config{'Qlength'}) && 
 5922:                    (!$doubleerror)) {
 5923:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
 5924:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
 5925:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
 5926:                if (length(@currarray) > 2) {
 5927:                    $doubleerror = 1;
 5928:                } 
 5929:             }
 5930:             if ($doubleerror) {
 5931:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
 5932:             }
 5933:         } else {
 5934:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
 5935:         }
 5936:         my $item = $ansnum;
 5937:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 5938:             $record->{"scantron.$item.answer"} = '';
 5939:             $item ++;
 5940:         }
 5941: 
 5942:         my @ans=@array;
 5943:         my $i=0;
 5944:         my $increment = 0;
 5945:         while ($#ans) {
 5946:             $i+=length($ans[0]) + $increment;
 5947:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
 5948:             my $bubble = $i%$$scantron_config{'Qlength'};
 5949:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
 5950:             shift(@ans);
 5951:             $increment = 1;
 5952:         }
 5953:         $ansnum += $answers_needed;
 5954:     }
 5955:     return $ansnum;
 5956: }
 5957: 
 5958: =pod
 5959: 
 5960: =item scantron_add_delay
 5961: 
 5962:    Adds an error message that occurred during the grading phase to a
 5963:    queue of messages to be shown after grading pass is complete
 5964: 
 5965:  Arguments:
 5966:    $delayqueue  - arrary ref of hash ref of error messages
 5967:    $scanline    - the scanline that caused the error
 5968:    $errormesage - the error message
 5969:    $errorcode   - a numeric code for the error
 5970: 
 5971:  Side Effects:
 5972:    updates the $delayqueue to have a new hash ref of the error
 5973: 
 5974: =cut
 5975: 
 5976: sub scantron_add_delay {
 5977:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
 5978:     push(@$delayqueue,
 5979: 	 {'line' => $scanline, 'emsg' => $errormessage,
 5980: 	  'ecode' => $errorcode }
 5981: 	 );
 5982: }
 5983: 
 5984: =pod
 5985: 
 5986: =item scantron_find_student
 5987: 
 5988:    Finds the username for the current scanline
 5989: 
 5990:   Arguments:
 5991:    $scantron_record - hash result from scantron_parse_scanline
 5992:    $scan_data       - hash of correction information 
 5993:                       (see &scantron_getfile() form more information)
 5994:    $idmap           - hash from &username_to_idmap()
 5995:    $line            - number of current scanline
 5996:  
 5997:   Returns:
 5998:    Either 'username:domain' or undef if unknown
 5999: 
 6000: =cut
 6001: 
 6002: sub scantron_find_student {
 6003:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
 6004:     my $scanID=$$scantron_record{'scantron.ID'};
 6005:     if ($scanID =~ /^\s*$/) {
 6006:  	return &scan_data($scan_data,"$line.user");
 6007:     }
 6008:     foreach my $id (keys(%$idmap)) {
 6009:  	if (lc($id) eq lc($scanID)) {
 6010:  	    return $$idmap{$id};
 6011:  	}
 6012:     }
 6013:     return undef;
 6014: }
 6015: 
 6016: =pod
 6017: 
 6018: =item scantron_filter
 6019: 
 6020:    Filter sub for lonnavmaps, filters out hidden resources if ignore
 6021:    hidden resources was selected
 6022: 
 6023: =cut
 6024: 
 6025: sub scantron_filter {
 6026:     my ($curres)=@_;
 6027: 
 6028:     if (ref($curres) && $curres->is_problem()) {
 6029: 	# if the user has asked to not have either hidden
 6030: 	# or 'randomout' controlled resources to be graded
 6031: 	# don't include them
 6032: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6033: 	    && $curres->randomout) {
 6034: 	    return 0;
 6035: 	}
 6036: 	return 1;
 6037:     }
 6038:     return 0;
 6039: }
 6040: 
 6041: =pod
 6042: 
 6043: =item scantron_process_corrections
 6044: 
 6045:    Gets correction information out of submitted form data and corrects
 6046:    the scanline
 6047: 
 6048: =cut
 6049: 
 6050: sub scantron_process_corrections {
 6051:     my ($r) = @_;
 6052:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6053:     my ($scanlines,$scan_data)=&scantron_getfile();
 6054:     my $classlist=&Apache::loncoursedata::get_classlist();
 6055:     my $which=$env{'form.scantron_line'};
 6056:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
 6057:     my ($skip,$err,$errmsg);
 6058:     if ($env{'form.scantron_skip_record'}) {
 6059: 	$skip=1;
 6060:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
 6061: 	my $newstudent=$env{'form.scantron_username'}.':'.
 6062: 	    $env{'form.scantron_domain'};
 6063: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
 6064: 	($line,$err,$errmsg)=
 6065: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6066: 				     'ID',{'newid'=>$newid,
 6067: 				    'username'=>$env{'form.scantron_username'},
 6068: 				    'domain'=>$env{'form.scantron_domain'}});
 6069:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
 6070: 	my $resolution=$env{'form.scantron_CODE_resolution'};
 6071: 	my $newCODE;
 6072: 	my %args;
 6073: 	if      ($resolution eq 'use_unfound') {
 6074: 	    $newCODE='use_unfound';
 6075: 	} elsif ($resolution eq 'use_found') {
 6076: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
 6077: 	} elsif ($resolution eq 'use_typed') {
 6078: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
 6079: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
 6080: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
 6081: 	}
 6082: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
 6083: 	    $args{'CODE_ignore_dup'}=1;
 6084: 	}
 6085: 	$args{'CODE'}=$newCODE;
 6086: 	($line,$err,$errmsg)=
 6087: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6088: 				     'CODE',\%args);
 6089:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
 6090: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
 6091: 	    ($line,$err,$errmsg)=
 6092: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
 6093: 					 $which,'answer',
 6094: 					 { 'question'=>$question,
 6095: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
 6096:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
 6097: 	    if ($err) { last; }
 6098: 	}
 6099:     }
 6100:     if ($err) {
 6101: 	$r->print("<span class=\"LC_warning\">Unable to accept last correction, an error occurred :$errmsg:</span>");
 6102:     } else {
 6103: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 6104: 	&scantron_putfile($scanlines,$scan_data);
 6105:     }
 6106: }
 6107: 
 6108: =pod
 6109: 
 6110: =item reset_skipping_status
 6111: 
 6112:    Forgets the current set of remember skipped scanlines (and thus
 6113:    reverts back to considering all lines in the
 6114:    scantron_skipped_<filename> file)
 6115: 
 6116: =cut
 6117: 
 6118: sub reset_skipping_status {
 6119:     my ($scanlines,$scan_data)=&scantron_getfile();
 6120:     &scan_data($scan_data,'remember_skipping',undef,1);
 6121:     &scantron_putfile(undef,$scan_data);
 6122: }
 6123: 
 6124: =pod
 6125: 
 6126: =item start_skipping
 6127: 
 6128:    Marks a scanline to be skipped. 
 6129: 
 6130: =cut
 6131: 
 6132: sub start_skipping {
 6133:     my ($scan_data,$i)=@_;
 6134:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6135:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
 6136: 	$remembered{$i}=2;
 6137:     } else {
 6138: 	$remembered{$i}=1;
 6139:     }
 6140:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
 6141: }
 6142: 
 6143: =pod
 6144: 
 6145: =item should_be_skipped
 6146: 
 6147:    Checks whether a scanline should be skipped.
 6148: 
 6149: =cut
 6150: 
 6151: sub should_be_skipped {
 6152:     my ($scanlines,$scan_data,$i)=@_;
 6153:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
 6154: 	# not redoing old skips
 6155: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
 6156: 	return 0;
 6157:     }
 6158:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6159: 
 6160:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
 6161: 	return 0;
 6162:     }
 6163:     return 1;
 6164: }
 6165: 
 6166: =pod
 6167: 
 6168: =item remember_current_skipped
 6169: 
 6170:    Discovers what scanlines are in the scantron_skipped_<filename>
 6171:    file and remembers them into scan_data for later use.
 6172: 
 6173: =cut
 6174: 
 6175: sub remember_current_skipped {
 6176:     my ($scanlines,$scan_data)=&scantron_getfile();
 6177:     my %to_remember;
 6178:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6179: 	if ($scanlines->{'skipped'}[$i]) {
 6180: 	    $to_remember{$i}=1;
 6181: 	}
 6182:     }
 6183: 
 6184:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
 6185:     &scantron_putfile(undef,$scan_data);
 6186: }
 6187: 
 6188: =pod
 6189: 
 6190: =item check_for_error
 6191: 
 6192:     Checks if there was an error when attempting to remove a specific
 6193:     scantron_.. bubble sheet data file. Prints out an error if
 6194:     something went wrong.
 6195: 
 6196: =cut
 6197: 
 6198: sub check_for_error {
 6199:     my ($r,$result)=@_;
 6200:     if ($result ne 'ok' && $result ne 'not_found' ) {
 6201: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
 6202:     }
 6203: }
 6204: 
 6205: =pod
 6206: 
 6207: =item scantron_warning_screen
 6208: 
 6209:    Interstitial screen to make sure the operator has selected the
 6210:    correct options before we start the validation phase.
 6211: 
 6212: =cut
 6213: 
 6214: sub scantron_warning_screen {
 6215:     my ($button_text)=@_;
 6216:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
 6217:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6218:     my $CODElist;
 6219:     if ($scantron_config{'CODElocation'} &&
 6220: 	$scantron_config{'CODEstart'} &&
 6221: 	$scantron_config{'CODElength'}) {
 6222: 	$CODElist=$env{'form.scantron_CODElist'};
 6223: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">None</span>'; }
 6224: 	$CODElist=
 6225: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 6226: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
 6227:     }
 6228:     return ('
 6229: <p>
 6230: <span class="LC_warning">
 6231: '.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
 6232: </p>
 6233: <table>
 6234: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 6235: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
 6236: '.$CODElist.'
 6237: </table>
 6238: <br />
 6239: <p> '.&mt('If this information is correct, please click on \'[_1]\'.',&mt($button_text)).'</p>
 6240: <p> '.&mt('If something is incorrect, please click the \'Grading Menu\' button to start over.').'</p>
 6241: 
 6242: <br />
 6243: ');
 6244: }
 6245: 
 6246: =pod
 6247: 
 6248: =item scantron_do_warning
 6249: 
 6250:    Check if the operator has picked something for all required
 6251:    fields. Error out if something is missing.
 6252: 
 6253: =cut
 6254: 
 6255: sub scantron_do_warning {
 6256:     my ($r)=@_;
 6257:     my ($symb)=&get_symb($r);
 6258:     if (!$symb) {return '';}
 6259:     my $default_form_data=&defaultFormData($symb);
 6260:     $r->print(&scantron_form_start().$default_form_data);
 6261:     if ( $env{'form.selectpage'} eq '' ||
 6262: 	 $env{'form.scantron_selectfile'} eq '' ||
 6263: 	 $env{'form.scantron_format'} eq '' ) {
 6264: 	$r->print("<p>".&mt('You have forgetten to specify some information. Please go Back and try again.')."</p>");
 6265: 	if ( $env{'form.selectpage'} eq '') {
 6266: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 6267: 	} 
 6268: 	if ( $env{'form.scantron_selectfile'} eq '') {
 6269: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a file that contains the student\'s response data.').'</span></p>');
 6270: 	} 
 6271: 	if ( $env{'form.scantron_format'} eq '') {
 6272: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a the format of the student\'s response data.').'</span></p>');
 6273: 	} 
 6274:     } else {
 6275: 	my $warning=&scantron_warning_screen('Grading: Validate Records');
 6276: 	$r->print('
 6277: '.$warning.'
 6278: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 6279: <input type="hidden" name="command" value="scantron_validate" />
 6280: ');
 6281:     }
 6282:     $r->print("</form><br />".&show_grading_menu_form($symb));
 6283:     return '';
 6284: }
 6285: 
 6286: =pod
 6287: 
 6288: =item scantron_form_start
 6289: 
 6290:     html hidden input for remembering all selected grading options
 6291: 
 6292: =cut
 6293: 
 6294: sub scantron_form_start {
 6295:     my ($max_bubble)=@_;
 6296:     my $result= <<SCANTRONFORM;
 6297: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 6298:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
 6299:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
 6300:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
 6301:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
 6302:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
 6303:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
 6304:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
 6305:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
 6306:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
 6307: SCANTRONFORM
 6308: 
 6309:   my $line = 0;
 6310:     while (defined($env{"form.scantron.bubblelines.$line"})) {
 6311:        my $chunk =
 6312: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
 6313:        $chunk .=
 6314: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
 6315:        $chunk .= 
 6316:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
 6317:        $chunk .=
 6318:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
 6319:        $result .= $chunk;
 6320:        $line++;
 6321:    }
 6322:     return $result;
 6323: }
 6324: 
 6325: =pod
 6326: 
 6327: =item scantron_validate_file
 6328: 
 6329:     Dispatch routine for doing validation of a bubble sheet data file.
 6330: 
 6331:     Also processes any necessary information resets that need to
 6332:     occur before validation begins (ignore previous corrections,
 6333:     restarting the skipped records processing)
 6334: 
 6335: =cut
 6336: 
 6337: sub scantron_validate_file {
 6338:     my ($r) = @_;
 6339:     my ($symb)=&get_symb($r);
 6340:     if (!$symb) {return '';}
 6341:     my $default_form_data=&defaultFormData($symb);
 6342:     
 6343:     # do the detection of only doing skipped records first befroe we delete
 6344:     # them when doing the corrections reset
 6345:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 6346: 	&reset_skipping_status();
 6347:     }
 6348:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
 6349: 	&remember_current_skipped();
 6350: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
 6351:     }
 6352: 
 6353:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
 6354: 	&check_for_error($r,&scantron_remove_file('corrected'));
 6355: 	&check_for_error($r,&scantron_remove_file('skipped'));
 6356: 	&check_for_error($r,&scantron_remove_scan_data());
 6357: 	$env{'form.scantron_options_ignore'}='done';
 6358:     }
 6359: 
 6360:     if ($env{'form.scantron_corrections'}) {
 6361: 	&scantron_process_corrections($r);
 6362:     }
 6363:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
 6364:     #get the student pick code ready
 6365:     $r->print(&Apache::loncommon::studentbrowser_javascript());
 6366:     my $nav_error;
 6367:     my $max_bubble=&scantron_get_maxbubble(\$nav_error);
 6368:     if ($nav_error) {
 6369:         $r->print(&navmap_errormsg());
 6370:         return '';
 6371:     }
 6372:     my $result=&scantron_form_start($max_bubble).$default_form_data;
 6373:     $r->print($result);
 6374:     
 6375:     my @validate_phases=( 'sequence',
 6376: 			  'ID',
 6377: 			  'CODE',
 6378: 			  'doublebubble',
 6379: 			  'missingbubbles');
 6380:     if (!$env{'form.validatepass'}) {
 6381: 	$env{'form.validatepass'} = 0;
 6382:     }
 6383:     my $currentphase=$env{'form.validatepass'};
 6384: 
 6385: 
 6386:     my $stop=0;
 6387:     while (!$stop && $currentphase < scalar(@validate_phases)) {
 6388: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 6389: 	$r->rflush();
 6390: 	my $which="scantron_validate_".$validate_phases[$currentphase];
 6391: 	{
 6392: 	    no strict 'refs';
 6393: 	    ($stop,$currentphase)=&$which($r,$currentphase);
 6394: 	}
 6395:     }
 6396:     if (!$stop) {
 6397: 	my $warning=&scantron_warning_screen('Start Grading');
 6398: 	$r->print(&mt('Validation process complete.').'<br />'.
 6399:                   $warning.
 6400:                   &mt('Perform verification for each student after storage of submissions?').
 6401:                   '&nbsp;<span class="LC_nobreak"><label>'.
 6402:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
 6403:                   ('&nbsp;'x3).'<label>'.
 6404:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
 6405:                   '</label></span><br />'.
 6406:                   &mt('Grading will take longer if you use verification.').'<br />'.
 6407:                   &mt("Alternatively, the 'Review bubblesheet data' utility (see grading menu) can be used for all students after grading is complete.").'<br /><br />'.
 6408:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
 6409:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
 6410:     } else {
 6411: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
 6412: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
 6413:     }
 6414:     if ($stop) {
 6415: 	if ($validate_phases[$currentphase] eq 'sequence') {
 6416: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 6417: 	    $r->print(' '.&mt('this error').' <br />');
 6418: 
 6419: 	    $r->print(" <p>".&mt("Or click the 'Grading Menu' button to start over.")."</p>");
 6420: 	} else {
 6421:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 6422: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
 6423:             } else {
 6424:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
 6425:             }
 6426: 	    $r->print(' '.&mt('using corrected info').' <br />');
 6427: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
 6428: 	    $r->print(" ".&mt("this scanline saving it for later."));
 6429: 	}
 6430:     }
 6431:     $r->print(" </form><br />".&show_grading_menu_form($symb));
 6432:     return '';
 6433: }
 6434: 
 6435: 
 6436: =pod
 6437: 
 6438: =item scantron_remove_file
 6439: 
 6440:    Removes the requested bubble sheet data file, makes sure that
 6441:    scantron_original_<filename> is never removed
 6442: 
 6443: 
 6444: =cut
 6445: 
 6446: sub scantron_remove_file {
 6447:     my ($which)=@_;
 6448:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6449:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6450:     my $file='scantron_';
 6451:     if ($which eq 'corrected' || $which eq 'skipped') {
 6452: 	$file.=$which.'_';
 6453:     } else {
 6454: 	return 'refused';
 6455:     }
 6456:     $file.=$env{'form.scantron_selectfile'};
 6457:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
 6458: }
 6459: 
 6460: 
 6461: =pod
 6462: 
 6463: =item scantron_remove_scan_data
 6464: 
 6465:    Removes all scan_data correction for the requested bubble sheet
 6466:    data file.  (In the case that both the are doing skipped records we need
 6467:    to remember the old skipped lines for the time being so that element
 6468:    persists for a while.)
 6469: 
 6470: =cut
 6471: 
 6472: sub scantron_remove_scan_data {
 6473:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6474:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6475:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
 6476:     my @todelete;
 6477:     my $filename=$env{'form.scantron_selectfile'};
 6478:     foreach my $key (@keys) {
 6479: 	if ($key=~/^\Q$filename\E_/) {
 6480: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
 6481: 		$key=~/remember_skipping/) {
 6482: 		next;
 6483: 	    }
 6484: 	    push(@todelete,$key);
 6485: 	}
 6486:     }
 6487:     my $result;
 6488:     if (@todelete) {
 6489: 	$result = &Apache::lonnet::del('nohist_scantrondata',
 6490: 				       \@todelete,$cdom,$cname);
 6491:     } else {
 6492: 	$result = 'ok';
 6493:     }
 6494:     return $result;
 6495: }
 6496: 
 6497: 
 6498: =pod
 6499: 
 6500: =item scantron_getfile
 6501: 
 6502:     Fetches the requested bubble sheet data file (all 3 versions), and
 6503:     the scan_data hash
 6504:   
 6505:   Arguments:
 6506:     None
 6507: 
 6508:   Returns:
 6509:     2 hash references
 6510: 
 6511:      - first one has 
 6512:          orig      -
 6513:          corrected -
 6514:          skipped   -  each of which points to an array ref of the specified
 6515:                       file broken up into individual lines
 6516:          count     - number of scanlines
 6517:  
 6518:      - second is the scan_data hash possible keys are
 6519:        ($number refers to scanline numbered $number and thus the key affects
 6520:         only that scanline
 6521:         $bubline refers to the specific bubble line element and the aspects
 6522:         refers to that specific bubble line element)
 6523: 
 6524:        $number.user - username:domain to use
 6525:        $number.CODE_ignore_dup 
 6526:                     - ignore the duplicate CODE error 
 6527:        $number.useCODE
 6528:                     - use the CODE in the scanline as is
 6529:        $number.no_bubble.$bubline
 6530:                     - it is valid that there is no bubbled in bubble
 6531:                       at $number $bubline
 6532:        remember_skipping
 6533:                     - a frozen hash containing keys of $number and values
 6534:                       of either 
 6535:                         1 - we are on a 'do skipped records pass' and plan
 6536:                             on processing this line
 6537:                         2 - we are on a 'do skipped records pass' and this
 6538:                             scanline has been marked to skip yet again
 6539: 
 6540: =cut
 6541: 
 6542: sub scantron_getfile {
 6543:     #FIXME really would prefer a scantron directory
 6544:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6545:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6546:     my $lines;
 6547:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6548: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
 6549:     my %scanlines;
 6550:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
 6551:     my $temp=$scanlines{'orig'};
 6552:     $scanlines{'count'}=$#$temp;
 6553: 
 6554:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6555: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
 6556:     if ($lines eq '-1') {
 6557: 	$scanlines{'corrected'}=[];
 6558:     } else {
 6559: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
 6560:     }
 6561:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6562: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
 6563:     if ($lines eq '-1') {
 6564: 	$scanlines{'skipped'}=[];
 6565:     } else {
 6566: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
 6567:     }
 6568:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
 6569:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
 6570:     my %scan_data = @tmp;
 6571:     return (\%scanlines,\%scan_data);
 6572: }
 6573: 
 6574: =pod
 6575: 
 6576: =item lonnet_putfile
 6577: 
 6578:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
 6579: 
 6580:  Arguments:
 6581:    $contents - data to store
 6582:    $filename - filename to store $contents into
 6583: 
 6584:  Returns:
 6585:    result value from &Apache::lonnet::finishuserfileupload
 6586: 
 6587: =cut
 6588: 
 6589: sub lonnet_putfile {
 6590:     my ($contents,$filename)=@_;
 6591:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6592:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6593:     $env{'form.sillywaytopassafilearound'}=$contents;
 6594:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
 6595: 
 6596: }
 6597: 
 6598: =pod
 6599: 
 6600: =item scantron_putfile
 6601: 
 6602:     Stores the current version of the bubble sheet data files, and the
 6603:     scan_data hash. (Does not modify the original version only the
 6604:     corrected and skipped versions.
 6605: 
 6606:  Arguments:
 6607:     $scanlines - hash ref that looks like the first return value from
 6608:                  &scantron_getfile()
 6609:     $scan_data - hash ref that looks like the second return value from
 6610:                  &scantron_getfile()
 6611: 
 6612: =cut
 6613: 
 6614: sub scantron_putfile {
 6615:     my ($scanlines,$scan_data) = @_;
 6616:     #FIXME really would prefer a scantron directory
 6617:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6618:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6619:     if ($scanlines) {
 6620: 	my $prefix='scantron_';
 6621: # no need to update orig, shouldn't change
 6622: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
 6623: #		    $env{'form.scantron_selectfile'});
 6624: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
 6625: 			$prefix.'corrected_'.
 6626: 			$env{'form.scantron_selectfile'});
 6627: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
 6628: 			$prefix.'skipped_'.
 6629: 			$env{'form.scantron_selectfile'});
 6630:     }
 6631:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
 6632: }
 6633: 
 6634: =pod
 6635: 
 6636: =item scantron_get_line
 6637: 
 6638:    Returns the correct version of the scanline
 6639: 
 6640:  Arguments:
 6641:     $scanlines - hash ref that looks like the first return value from
 6642:                  &scantron_getfile()
 6643:     $scan_data - hash ref that looks like the second return value from
 6644:                  &scantron_getfile()
 6645:     $i         - number of the requested line (starts at 0)
 6646: 
 6647:  Returns:
 6648:    A scanline, (either the original or the corrected one if it
 6649:    exists), or undef if the requested scanline should be
 6650:    skipped. (Either because it's an skipped scanline, or it's an
 6651:    unskipped scanline and we are not doing a 'do skipped scanlines'
 6652:    pass.
 6653: 
 6654: =cut
 6655: 
 6656: sub scantron_get_line {
 6657:     my ($scanlines,$scan_data,$i)=@_;
 6658:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
 6659:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
 6660:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
 6661:     return $scanlines->{'orig'}[$i]; 
 6662: }
 6663: 
 6664: =pod
 6665: 
 6666: =item scantron_todo_count
 6667: 
 6668:     Counts the number of scanlines that need processing.
 6669: 
 6670:  Arguments:
 6671:     $scanlines - hash ref that looks like the first return value from
 6672:                  &scantron_getfile()
 6673:     $scan_data - hash ref that looks like the second return value from
 6674:                  &scantron_getfile()
 6675: 
 6676:  Returns:
 6677:     $count - number of scanlines to process
 6678: 
 6679: =cut
 6680: 
 6681: sub get_todo_count {
 6682:     my ($scanlines,$scan_data)=@_;
 6683:     my $count=0;
 6684:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6685: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 6686: 	if ($line=~/^[\s\cz]*$/) { next; }
 6687: 	$count++;
 6688:     }
 6689:     return $count;
 6690: }
 6691: 
 6692: =pod
 6693: 
 6694: =item scantron_put_line
 6695: 
 6696:     Updates the 'corrected' or 'skipped' versions of the bubble sheet
 6697:     data file.
 6698: 
 6699:  Arguments:
 6700:     $scanlines - hash ref that looks like the first return value from
 6701:                  &scantron_getfile()
 6702:     $scan_data - hash ref that looks like the second return value from
 6703:                  &scantron_getfile()
 6704:     $i         - line number to update
 6705:     $newline   - contents of the updated scanline
 6706:     $skip      - if true make the line for skipping and update the
 6707:                  'skipped' file
 6708: 
 6709: =cut
 6710: 
 6711: sub scantron_put_line {
 6712:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
 6713:     if ($skip) {
 6714: 	$scanlines->{'skipped'}[$i]=$newline;
 6715: 	&start_skipping($scan_data,$i);
 6716: 	return;
 6717:     }
 6718:     $scanlines->{'corrected'}[$i]=$newline;
 6719: }
 6720: 
 6721: =pod
 6722: 
 6723: =item scantron_clear_skip
 6724: 
 6725:    Remove a line from the 'skipped' file
 6726: 
 6727:  Arguments:
 6728:     $scanlines - hash ref that looks like the first return value from
 6729:                  &scantron_getfile()
 6730:     $scan_data - hash ref that looks like the second return value from
 6731:                  &scantron_getfile()
 6732:     $i         - line number to update
 6733: 
 6734: =cut
 6735: 
 6736: sub scantron_clear_skip {
 6737:     my ($scanlines,$scan_data,$i)=@_;
 6738:     if (exists($scanlines->{'skipped'}[$i])) {
 6739: 	undef($scanlines->{'skipped'}[$i]);
 6740: 	return 1;
 6741:     }
 6742:     return 0;
 6743: }
 6744: 
 6745: =pod
 6746: 
 6747: =item scantron_filter_not_exam
 6748: 
 6749:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
 6750:    filter out resources that are not marked as 'exam' mode
 6751: 
 6752: =cut
 6753: 
 6754: sub scantron_filter_not_exam {
 6755:     my ($curres)=@_;
 6756:     
 6757:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
 6758: 	# if the user has asked to not have either hidden
 6759: 	# or 'randomout' controlled resources to be graded
 6760: 	# don't include them
 6761: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6762: 	    && $curres->randomout) {
 6763: 	    return 0;
 6764: 	}
 6765: 	return 1;
 6766:     }
 6767:     return 0;
 6768: }
 6769: 
 6770: =pod
 6771: 
 6772: =item scantron_validate_sequence
 6773: 
 6774:     Validates the selected sequence, checking for resource that are
 6775:     not set to exam mode.
 6776: 
 6777: =cut
 6778: 
 6779: sub scantron_validate_sequence {
 6780:     my ($r,$currentphase) = @_;
 6781: 
 6782:     my $navmap=Apache::lonnavmaps::navmap->new();
 6783:     unless (ref($navmap)) {
 6784:         $r->print(&navmap_errormsg());
 6785:         return (1,$currentphase);
 6786:     }
 6787:     my (undef,undef,$sequence)=
 6788: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 6789: 
 6790:     my $map=$navmap->getResourceByUrl($sequence);
 6791: 
 6792:     $r->print('<input type="hidden" name="validate_sequence_exam"
 6793:                                     value="ignore" />');
 6794:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
 6795: 	my @resources=
 6796: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 6797: 	if (@resources) {
 6798: 	    $r->print("<p>".&mt('Some resources in the sequence currently are not set to exam mode. Grading these resources currently may not work correctly.')."</p>");
 6799: 	    return (1,$currentphase);
 6800: 	}
 6801:     }
 6802: 
 6803:     return (0,$currentphase+1);
 6804: }
 6805: 
 6806: 
 6807: 
 6808: sub scantron_validate_ID {
 6809:     my ($r,$currentphase) = @_;
 6810:     
 6811:     #get student info
 6812:     my $classlist=&Apache::loncoursedata::get_classlist();
 6813:     my %idmap=&username_to_idmap($classlist);
 6814: 
 6815:     #get scantron line setup
 6816:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6817:     my ($scanlines,$scan_data)=&scantron_getfile();
 6818: 
 6819:     my $nav_error;
 6820:     &scantron_get_maxbubble(\$nav_error); # parse needs the bubble_lines.. array.
 6821:     if ($nav_error) {
 6822:         $r->print(&navmap_errormsg());
 6823:         return(1,$currentphase);
 6824:     }
 6825: 
 6826:     my %found=('ids'=>{},'usernames'=>{});
 6827:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6828: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 6829: 	if ($line=~/^[\s\cz]*$/) { next; }
 6830: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 6831: 						 $scan_data);
 6832: 	my $id=$$scan_record{'scantron.ID'};
 6833: 	my $found;
 6834: 	foreach my $checkid (keys(%idmap)) {
 6835: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
 6836: 	}
 6837: 	if ($found) {
 6838: 	    my $username=$idmap{$found};
 6839: 	    if ($found{'ids'}{$found}) {
 6840: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 6841: 					 $line,'duplicateID',$found);
 6842: 		return(1,$currentphase);
 6843: 	    } elsif ($found{'usernames'}{$username}) {
 6844: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 6845: 					 $line,'duplicateID',$username);
 6846: 		return(1,$currentphase);
 6847: 	    }
 6848: 	    #FIXME store away line we previously saw the ID on to use above
 6849: 	    $found{'ids'}{$found}++;
 6850: 	    $found{'usernames'}{$username}++;
 6851: 	} else {
 6852: 	    if ($id =~ /^\s*$/) {
 6853: 		my $username=&scan_data($scan_data,"$i.user");
 6854: 		if (defined($username) && $found{'usernames'}{$username}) {
 6855: 		    &scantron_get_correction($r,$i,$scan_record,
 6856: 					     \%scantron_config,
 6857: 					     $line,'duplicateID',$username);
 6858: 		    return(1,$currentphase);
 6859: 		} elsif (!defined($username)) {
 6860: 		    &scantron_get_correction($r,$i,$scan_record,
 6861: 					     \%scantron_config,
 6862: 					     $line,'incorrectID');
 6863: 		    return(1,$currentphase);
 6864: 		}
 6865: 		$found{'usernames'}{$username}++;
 6866: 	    } else {
 6867: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 6868: 					 $line,'incorrectID');
 6869: 		return(1,$currentphase);
 6870: 	    }
 6871: 	}
 6872:     }
 6873: 
 6874:     return (0,$currentphase+1);
 6875: }
 6876: 
 6877: 
 6878: sub scantron_get_correction {
 6879:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg)=@_;
 6880: #FIXME in the case of a duplicated ID the previous line, probably need
 6881: #to show both the current line and the previous one and allow skipping
 6882: #the previous one or the current one
 6883: 
 6884:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
 6885: 	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
 6886: 			    " for PaperID <tt>[_1]</tt>",
 6887: 			    $$scan_record{'scantron.PaperID'})."</p> \n");
 6888:     } else {
 6889: 	$r->print("<p>".&mt("<b>An error was detected ($error)</b>".
 6890: 			    " in scanline [_1] <pre>[_2]</pre>",
 6891: 			    $i,$line)."</p> \n");
 6892:     }
 6893:     my $message="<p>".&mt("The ID on the form is  <tt>[_1]</tt><br />".
 6894: 			  "The name on the paper is [_2],[_3]",
 6895: 			  $$scan_record{'scantron.ID'},
 6896: 			  $$scan_record{'scantron.LastName'},
 6897: 			  $$scan_record{'scantron.FirstName'})."</p>";
 6898: 
 6899:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
 6900:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
 6901:                            # Array populated for doublebubble or
 6902:     my @lines_to_correct;  # missingbubble errors to build javascript
 6903:                            # to validate radio button checking   
 6904: 
 6905:     if ($error =~ /ID$/) {
 6906: 	if ($error eq 'incorrectID') {
 6907: 	    $r->print("<p>".&mt("The encoded ID is not in the classlist").
 6908: 		      "</p>\n");
 6909: 	} elsif ($error eq 'duplicateID') {
 6910: 	    $r->print("<p>".&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 6911: 	}
 6912: 	$r->print($message);
 6913: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 6914: 	$r->print("\n<ul><li> ");
 6915: 	#FIXME it would be nice if this sent back the user ID and
 6916: 	#could do partial userID matches
 6917: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 6918: 				       'scantron_username','scantron_domain'));
 6919: 	$r->print(": <input type='text' name='scantron_username' value='' />");
 6920: 	$r->print("\n@".
 6921: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 6922: 
 6923: 	$r->print('</li>');
 6924:     } elsif ($error =~ /CODE$/) {
 6925: 	if ($error eq 'incorrectCODE') {
 6926: 	    $r->print("<p>".&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 6927: 	} elsif ($error eq 'duplicateCODE') {
 6928: 	    $r->print("<p>".&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 6929: 	}
 6930: 	$r->print("<p>".&mt("The CODE on the form is  <tt>'[_1]'</tt>",
 6931: 			    $$scan_record{'scantron.CODE'})."<br />\n");
 6932: 	$r->print($message);
 6933: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 6934: 	$r->print("\n<br /> ");
 6935: 	my $i=0;
 6936: 	if ($error eq 'incorrectCODE' 
 6937: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
 6938: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
 6939: 	    if ($closest > 0) {
 6940: 		foreach my $testcode (@{$closest}) {
 6941: 		    my $checked='';
 6942: 		    if (!$i) { $checked=' checked="checked"'; }
 6943: 		    $r->print("
 6944:    <label>
 6945:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
 6946:        ".&mt("Use the similar CODE [_1] instead.",
 6947: 	    "<b><tt>".$testcode."</tt></b>")."
 6948:     </label>
 6949:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
 6950: 		    $r->print("\n<br />");
 6951: 		    $i++;
 6952: 		}
 6953: 	    }
 6954: 	}
 6955: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
 6956: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
 6957: 	    $r->print("
 6958:     <label>
 6959:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
 6960:        ".&mt("Use the CODE [_1] that is was on the paper, ignoring the error.",
 6961: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
 6962:     </label>");
 6963: 	    $r->print("\n<br />");
 6964: 	}
 6965: 
 6966: 	$r->print(<<ENDSCRIPT);
 6967: <script type="text/javascript">
 6968: function change_radio(field) {
 6969:     var slct=document.scantronupload.scantron_CODE_resolution;
 6970:     var i;
 6971:     for (i=0;i<slct.length;i++) {
 6972:         if (slct[i].value==field) { slct[i].checked=true; }
 6973:     }
 6974: }
 6975: </script>
 6976: ENDSCRIPT
 6977: 	my $href="/adm/pickcode?".
 6978: 	   "form=".&escape("scantronupload").
 6979: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
 6980: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
 6981: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
 6982: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
 6983: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
 6984: 	    $r->print("
 6985:     <label>
 6986:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
 6987:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
 6988: 	     "<a target='_blank' href='$href'>","</a>")."
 6989:     </label> 
 6990:     ".&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\')" />'));
 6991: 	    $r->print("\n<br />");
 6992: 	}
 6993: 	$r->print("
 6994:     <label>
 6995:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
 6996:        ".&mt("Use [_1] as the CODE.",
 6997: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 6998: 	$r->print("\n<br /><br />");
 6999:     } elsif ($error eq 'doublebubble') {
 7000: 	$r->print("<p>".&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 7001: 
 7002: 	# The form field scantron_questions is acutally a list of line numbers.
 7003: 	# represented by this form so:
 7004: 
 7005: 	my $line_list = &questions_to_line_list($arg);
 7006: 
 7007: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7008: 		  $line_list.'" />');
 7009: 	$r->print($message);
 7010: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 7011: 	foreach my $question (@{$arg}) {
 7012: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7013:                                                    $scan_record, $error);
 7014:             push(@lines_to_correct,@linenums);
 7015: 	}
 7016:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7017:     } elsif ($error eq 'missingbubble') {
 7018: 	$r->print("<p>".&mt("There have been <b>no</b> bubbles scanned for some question(s)")."</p>\n");
 7019: 	$r->print($message);
 7020: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 7021: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
 7022: 
 7023: 	# The form field scantron_questions is actually a list of line numbers not
 7024: 	# a list of question numbers. Therefore:
 7025: 	#
 7026: 	
 7027: 	my $line_list = &questions_to_line_list($arg);
 7028: 
 7029: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7030: 		  $line_list.'" />');
 7031: 	foreach my $question (@{$arg}) {
 7032: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7033:                                                    $scan_record, $error);
 7034:             push(@lines_to_correct,@linenums);
 7035: 	}
 7036:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7037:     } else {
 7038: 	$r->print("\n<ul>");
 7039:     }
 7040:     $r->print("\n</li></ul>");
 7041: }
 7042: 
 7043: sub verify_bubbles_checked {
 7044:     my (@ansnums) = @_;
 7045:     my $ansnumstr = join('","',@ansnums);
 7046:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
 7047:     my $output = (<<ENDSCRIPT);
 7048: <script type="text/javascript">
 7049: function verify_bubble_radio(form) {
 7050:     var ansnumArray = new Array ("$ansnumstr");
 7051:     var need_bubble_count = 0;
 7052:     for (var i=0; i<ansnumArray.length; i++) {
 7053:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
 7054:             var bubble_picked = 0; 
 7055:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
 7056:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
 7057:                     bubble_picked = 1;
 7058:                 }
 7059:             }
 7060:             if (bubble_picked == 0) {
 7061:                 need_bubble_count ++;
 7062:             }
 7063:         }
 7064:     }
 7065:     if (need_bubble_count) {
 7066:         alert("$warning");
 7067:         return;
 7068:     }
 7069:     form.submit(); 
 7070: }
 7071: </script>
 7072: ENDSCRIPT
 7073:     return $output;
 7074: }
 7075: 
 7076: =pod
 7077: 
 7078: =item  questions_to_line_list
 7079: 
 7080: Converts a list of questions into a string of comma separated
 7081: line numbers in the answer sheet used by the questions.  This is
 7082: used to fill in the scantron_questions form field.
 7083: 
 7084:   Arguments:
 7085:      questions    - Reference to an array of questions.
 7086: 
 7087: =cut
 7088: 
 7089: 
 7090: sub questions_to_line_list {
 7091:     my ($questions) = @_;
 7092:     my @lines;
 7093: 
 7094:     foreach my $item (@{$questions}) {
 7095:         my $question = $item;
 7096:         my ($first,$count,$last);
 7097:         if ($item =~ /^(\d+)\.(\d+)$/) {
 7098:             $question = $1;
 7099:             my $subquestion = $2;
 7100:             $first = $first_bubble_line{$question-1} + 1;
 7101:             my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7102:             my $subcount = 1;
 7103:             while ($subcount<$subquestion) {
 7104:                 $first += $subans[$subcount-1];
 7105:                 $subcount ++;
 7106:             }
 7107:             $count = $subans[$subquestion-1];
 7108:         } else {
 7109: 	    $first   = $first_bubble_line{$question-1} + 1;
 7110: 	    $count   = $bubble_lines_per_response{$question-1};
 7111:         }
 7112:         $last = $first+$count-1;
 7113:         push(@lines, ($first..$last));
 7114:     }
 7115:     return join(',', @lines);
 7116: }
 7117: 
 7118: =pod 
 7119: 
 7120: =item prompt_for_corrections
 7121: 
 7122: Prompts for a potentially multiline correction to the
 7123: user's bubbling (factors out common code from scantron_get_correction
 7124: for multi and missing bubble cases).
 7125: 
 7126:  Arguments:
 7127:    $r           - Apache request object.
 7128:    $question    - The question number to prompt for.
 7129:    $scan_config - The scantron file configuration hash.
 7130:    $scan_record - Reference to the hash that has the the parsed scanlines.
 7131:    $error       - Type of error
 7132: 
 7133:  Implicit inputs:
 7134:    %bubble_lines_per_response   - Starting line numbers for each question.
 7135:                                   Numbered from 0 (but question numbers are from
 7136:                                   1.
 7137:    %first_bubble_line           - Starting bubble line for each question.
 7138:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
 7139:                                   type problems render as separate sub-questions, 
 7140:                                   in exam mode. This hash contains a 
 7141:                                   comma-separated list of the lines per 
 7142:                                   sub-question.
 7143:    %responsetype_per_response   - essayresponse, formularesponse,
 7144:                                   stringresponse, imageresponse, reactionresponse,
 7145:                                   and organicresponse type problem parts can have
 7146:                                   multiple lines per response if the weight
 7147:                                   assigned exceeds 10.  In this case, only
 7148:                                   one bubble per line is permitted, but more 
 7149:                                   than one line might contain bubbles, e.g.
 7150:                                   bubbling of: line 1 - J, line 2 - J, 
 7151:                                   line 3 - B would assign 22 points.  
 7152: 
 7153: =cut
 7154: 
 7155: sub prompt_for_corrections {
 7156:     my ($r, $question, $scan_config, $scan_record, $error) = @_;
 7157:     my ($current_line,$lines);
 7158:     my @linenums;
 7159:     my $questionnum = $question;
 7160:     if ($question =~ /^(\d+)\.(\d+)$/) {
 7161:         $question = $1;
 7162:         $current_line = $first_bubble_line{$question-1} + 1 ;
 7163:         my $subquestion = $2;
 7164:         my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7165:         my $subcount = 1;
 7166:         while ($subcount<$subquestion) {
 7167:             $current_line += $subans[$subcount-1];
 7168:             $subcount ++;
 7169:         }
 7170:         $lines = $subans[$subquestion-1];
 7171:     } else {
 7172:         $current_line = $first_bubble_line{$question-1} + 1 ;
 7173:         $lines        = $bubble_lines_per_response{$question-1};
 7174:     }
 7175:     if ($lines > 1) {
 7176:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
 7177:         if (($responsetype_per_response{$question-1} eq 'essayresponse') ||
 7178:             ($responsetype_per_response{$question-1} eq 'formularesponse') ||
 7179:             ($responsetype_per_response{$question-1} eq 'stringresponse') ||
 7180:             ($responsetype_per_response{$question-1} eq 'imageresponse') ||
 7181:             ($responsetype_per_response{$question-1} eq 'reactionresponse') ||
 7182:             ($responsetype_per_response{$question-1} eq 'organicresponse')) {
 7183:             $r->print(&mt("Although this particular question type requires handgrading, the instructions for this question in the exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$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 />');
 7184:         } else {
 7185:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
 7186:         }
 7187:     }
 7188:     for (my $i =0; $i < $lines; $i++) {
 7189:         my $selected = $$scan_record{"scantron.$current_line.answer"};
 7190: 	&scantron_bubble_selector($r,$scan_config,$current_line, 
 7191: 	        		  $questionnum,$error,split('', $selected));
 7192:         push(@linenums,$current_line);
 7193: 	$current_line++;
 7194:     }
 7195:     if ($lines > 1) {
 7196: 	$r->print("<hr /><br />");
 7197:     }
 7198:     return @linenums;
 7199: }
 7200: 
 7201: =pod
 7202: 
 7203: =item scantron_bubble_selector
 7204:   
 7205:    Generates the html radiobuttons to correct a single bubble line
 7206:    possibly showing the existing the selected bubbles if known
 7207: 
 7208:  Arguments:
 7209:     $r           - Apache request object
 7210:     $scan_config - hash from &get_scantron_config()
 7211:     $line        - Number of the line being displayed.
 7212:     $questionnum - Question number (may include subquestion)
 7213:     $error       - Type of error.
 7214:     @selected    - Array of bubbles picked on this line.
 7215: 
 7216: =cut
 7217: 
 7218: sub scantron_bubble_selector {
 7219:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
 7220:     my $max=$$scan_config{'Qlength'};
 7221: 
 7222:     my $scmode=$$scan_config{'Qon'};
 7223:     if ($scmode eq 'number' || $scmode eq 'letter') { $max=10; }	     
 7224: 
 7225:     my @alphabet=('A'..'Z');
 7226:     $r->print(&Apache::loncommon::start_data_table().
 7227:               &Apache::loncommon::start_data_table_row());
 7228:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
 7229:     for (my $i=0;$i<$max+1;$i++) {
 7230: 	$r->print("\n".'<td align="center">');
 7231: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
 7232: 	else { $r->print('&nbsp;'); }
 7233: 	$r->print('</td>');
 7234:     }
 7235:     $r->print(&Apache::loncommon::end_data_table_row().
 7236:               &Apache::loncommon::start_data_table_row());
 7237:     for (my $i=0;$i<$max;$i++) {
 7238: 	$r->print("\n".
 7239: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
 7240: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
 7241:     }
 7242:     my $nobub_checked = ' ';
 7243:     if ($error eq 'missingbubble') {
 7244:         $nobub_checked = ' checked = "checked" ';
 7245:     }
 7246:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
 7247: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
 7248:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
 7249:               $line.'" value="'.$questionnum.'" /></td>');
 7250:     $r->print(&Apache::loncommon::end_data_table_row().
 7251:               &Apache::loncommon::end_data_table());
 7252: }
 7253: 
 7254: =pod
 7255: 
 7256: =item num_matches
 7257: 
 7258:    Counts the number of characters that are the same between the two arguments.
 7259: 
 7260:  Arguments:
 7261:    $orig - CODE from the scanline
 7262:    $code - CODE to match against
 7263: 
 7264:  Returns:
 7265:    $count - integer count of the number of same characters between the
 7266:             two arguments
 7267: 
 7268: =cut
 7269: 
 7270: sub num_matches {
 7271:     my ($orig,$code) = @_;
 7272:     my @code=split(//,$code);
 7273:     my @orig=split(//,$orig);
 7274:     my $same=0;
 7275:     for (my $i=0;$i<scalar(@code);$i++) {
 7276: 	if ($code[$i] eq $orig[$i]) { $same++; }
 7277:     }
 7278:     return $same;
 7279: }
 7280: 
 7281: =pod
 7282: 
 7283: =item scantron_get_closely_matching_CODEs
 7284: 
 7285:    Cycles through all CODEs and finds the set that has the greatest
 7286:    number of same characters as the provided CODE
 7287: 
 7288:  Arguments:
 7289:    $allcodes - hash ref returned by &get_codes()
 7290:    $CODE     - CODE from the current scanline
 7291: 
 7292:  Returns:
 7293:    2 element list
 7294:     - first elements is number of how closely matching the best fit is 
 7295:       (5 means best set has 5 matching characters)
 7296:     - second element is an arrary ref containing the set of valid CODEs
 7297:       that best fit the passed in CODE
 7298: 
 7299: =cut
 7300: 
 7301: sub scantron_get_closely_matching_CODEs {
 7302:     my ($allcodes,$CODE)=@_;
 7303:     my @CODEs;
 7304:     foreach my $testcode (sort(keys(%{$allcodes}))) {
 7305: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
 7306:     }
 7307: 
 7308:     return ($#CODEs,$CODEs[-1]);
 7309: }
 7310: 
 7311: =pod
 7312: 
 7313: =item get_codes
 7314: 
 7315:    Builds a hash which has keys of all of the valid CODEs from the selected
 7316:    set of remembered CODEs.
 7317: 
 7318:  Arguments:
 7319:   $old_name - name of the set of remembered CODEs
 7320:   $cdom     - domain of the course
 7321:   $cnum     - internal course name
 7322: 
 7323:  Returns:
 7324:   %allcodes - keys are the valid CODEs, values are all 1
 7325: 
 7326: =cut
 7327: 
 7328: sub get_codes {
 7329:     my ($old_name, $cdom, $cnum) = @_;
 7330:     if (!$old_name) {
 7331: 	$old_name=$env{'form.scantron_CODElist'};
 7332:     }
 7333:     if (!$cdom) {
 7334: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
 7335:     }
 7336:     if (!$cnum) {
 7337: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
 7338:     }
 7339:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
 7340: 				    $cdom,$cnum);
 7341:     my %allcodes;
 7342:     if ($result{"type\0$old_name"} eq 'number') {
 7343: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
 7344:     } else {
 7345: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
 7346:     }
 7347:     return %allcodes;
 7348: }
 7349: 
 7350: =pod
 7351: 
 7352: =item scantron_validate_CODE
 7353: 
 7354:    Validates all scanlines in the selected file to not have any
 7355:    invalid or underspecified CODEs and that none of the codes are
 7356:    duplicated if this was requested.
 7357: 
 7358: =cut
 7359: 
 7360: sub scantron_validate_CODE {
 7361:     my ($r,$currentphase) = @_;
 7362:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7363:     if ($scantron_config{'CODElocation'} &&
 7364: 	$scantron_config{'CODEstart'} &&
 7365: 	$scantron_config{'CODElength'}) {
 7366: 	if (!defined($env{'form.scantron_CODElist'})) {
 7367: 	    &FIXME_blow_up()
 7368: 	}
 7369:     } else {
 7370: 	return (0,$currentphase+1);
 7371:     }
 7372:     
 7373:     my %usedCODEs;
 7374: 
 7375:     my %allcodes=&get_codes();
 7376: 
 7377:     my $nav_error;
 7378:     &scantron_get_maxbubble(\$nav_error); # parse needs the lines per response array.
 7379:     if ($nav_error) {
 7380:         $r->print(&navmap_errormsg());
 7381:         return(1,$currentphase);
 7382:     }
 7383: 
 7384:     my ($scanlines,$scan_data)=&scantron_getfile();
 7385:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7386: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7387: 	if ($line=~/^[\s\cz]*$/) { next; }
 7388: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7389: 						 $scan_data);
 7390: 	my $CODE=$$scan_record{'scantron.CODE'};
 7391: 	my $error=0;
 7392: 	if (!&Apache::lonnet::validCODE($CODE)) {
 7393: 	    &scantron_get_correction($r,$i,$scan_record,
 7394: 				     \%scantron_config,
 7395: 				     $line,'incorrectCODE',\%allcodes);
 7396: 	    return(1,$currentphase);
 7397: 	}
 7398: 	if (%allcodes && !exists($allcodes{$CODE}) 
 7399: 	    && !$$scan_record{'scantron.useCODE'}) {
 7400: 	    &scantron_get_correction($r,$i,$scan_record,
 7401: 				     \%scantron_config,
 7402: 				     $line,'incorrectCODE',\%allcodes);
 7403: 	    return(1,$currentphase);
 7404: 	}
 7405: 	if (exists($usedCODEs{$CODE}) 
 7406: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
 7407: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
 7408: 	    &scantron_get_correction($r,$i,$scan_record,
 7409: 				     \%scantron_config,
 7410: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
 7411: 	    return(1,$currentphase);
 7412: 	}
 7413: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
 7414:     }
 7415:     return (0,$currentphase+1);
 7416: }
 7417: 
 7418: =pod
 7419: 
 7420: =item scantron_validate_doublebubble
 7421: 
 7422:    Validates all scanlines in the selected file to not have any
 7423:    bubble lines with multiple bubbles marked.
 7424: 
 7425: =cut
 7426: 
 7427: sub scantron_validate_doublebubble {
 7428:     my ($r,$currentphase) = @_;
 7429:     #get student info
 7430:     my $classlist=&Apache::loncoursedata::get_classlist();
 7431:     my %idmap=&username_to_idmap($classlist);
 7432: 
 7433:     #get scantron line setup
 7434:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7435:     my ($scanlines,$scan_data)=&scantron_getfile();
 7436:     my $nav_error;
 7437:     &scantron_get_maxbubble(\$nav_error); # parse needs the bubble line array.
 7438:     if ($nav_error) {
 7439:         $r->print(&navmap_errormsg());
 7440:         return(1,$currentphase);
 7441:     }
 7442: 
 7443:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7444: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7445: 	if ($line=~/^[\s\cz]*$/) { next; }
 7446: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7447: 						 $scan_data);
 7448: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 7449: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 7450: 				 'doublebubble',
 7451: 				 $$scan_record{'scantron.doubleerror'});
 7452:     	return (1,$currentphase);
 7453:     }
 7454:     return (0,$currentphase+1);
 7455: }
 7456: 
 7457: 
 7458: sub scantron_get_maxbubble {
 7459:     my ($nav_error) = @_;
 7460:     if (defined($env{'form.scantron_maxbubble'}) &&
 7461: 	$env{'form.scantron_maxbubble'}) {
 7462: 	&restore_bubble_lines();
 7463: 	return $env{'form.scantron_maxbubble'};
 7464:     }
 7465: 
 7466:     my (undef, undef, $sequence) =
 7467: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7468: 
 7469:     my $navmap=Apache::lonnavmaps::navmap->new();
 7470:     unless (ref($navmap)) {
 7471:         if (ref($nav_error)) {
 7472:             $$nav_error = 1;
 7473:         }
 7474:         return;
 7475:     }
 7476:     my $map=$navmap->getResourceByUrl($sequence);
 7477:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7478: 
 7479:     &Apache::lonxml::clear_problem_counter();
 7480: 
 7481:     my $uname       = $env{'user.name'};
 7482:     my $udom        = $env{'user.domain'};
 7483:     my $cid         = $env{'request.course.id'};
 7484:     my $total_lines = 0;
 7485:     %bubble_lines_per_response = ();
 7486:     %first_bubble_line         = ();
 7487:     %subdivided_bubble_lines   = ();
 7488:     %responsetype_per_response = ();
 7489: 
 7490:     my $response_number = 0;
 7491:     my $bubble_line     = 0;
 7492:     foreach my $resource (@resources) {
 7493:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,$udom);
 7494:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 7495: 	    foreach my $part_id (@{$parts}) {
 7496:                 my $lines;
 7497: 
 7498: 	        # TODO - make this a persistent hash not an array.
 7499: 
 7500:                 # optionresponse, matchresponse and rankresponse type items 
 7501:                 # render as separate sub-questions in exam mode.
 7502:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
 7503:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
 7504:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
 7505:                     my ($numbub,$numshown);
 7506:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
 7507:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
 7508:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
 7509:                         }
 7510:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
 7511:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
 7512:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
 7513:                         }
 7514:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
 7515:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
 7516:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
 7517:                         }
 7518:                     }
 7519:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
 7520:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
 7521:                     }
 7522:                     my $bubbles_per_line = 10;
 7523:                     my $inner_bubble_lines = int($numbub/$bubbles_per_line);
 7524:                     if (($numbub % $bubbles_per_line) != 0) {
 7525:                         $inner_bubble_lines++;
 7526:                     }
 7527:                     for (my $i=0; $i<$numshown; $i++) {
 7528:                         $subdivided_bubble_lines{$response_number} .= 
 7529:                             $inner_bubble_lines.',';
 7530:                     }
 7531:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
 7532:                     $lines = $numshown * $inner_bubble_lines;
 7533:                 } else {
 7534:                     $lines = $analysis->{"$part_id.bubble_lines"};
 7535:                 } 
 7536: 
 7537:                 $first_bubble_line{$response_number} = $bubble_line;
 7538: 	        $bubble_lines_per_response{$response_number} = $lines;
 7539:                 $responsetype_per_response{$response_number} = 
 7540:                     $analysis->{$part_id.'.type'};
 7541: 	        $response_number++;
 7542: 
 7543: 	        $bubble_line +=  $lines;
 7544: 	        $total_lines +=  $lines;
 7545: 	    }
 7546:         }
 7547:     }
 7548:     &Apache::lonnet::delenv('scantron.');
 7549: 
 7550:     &save_bubble_lines();
 7551:     $env{'form.scantron_maxbubble'} =
 7552: 	$total_lines;
 7553:     return $env{'form.scantron_maxbubble'};
 7554: }
 7555: 
 7556: sub scantron_validate_missingbubbles {
 7557:     my ($r,$currentphase) = @_;
 7558:     #get student info
 7559:     my $classlist=&Apache::loncoursedata::get_classlist();
 7560:     my %idmap=&username_to_idmap($classlist);
 7561: 
 7562:     #get scantron line setup
 7563:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7564:     my ($scanlines,$scan_data)=&scantron_getfile();
 7565:     my $nav_error;
 7566:     my $max_bubble=&scantron_get_maxbubble(\$nav_error);
 7567:     if ($nav_error) {
 7568:         return(1,$currentphase);
 7569:     }
 7570:     if (!$max_bubble) { $max_bubble=2**31; }
 7571:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7572: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7573: 	if ($line=~/^[\s\cz]*$/) { next; }
 7574: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7575: 						 $scan_data);
 7576: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 7577: 	my @to_correct;
 7578: 	
 7579: 	# Probably here's where the error is...
 7580: 
 7581: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
 7582:             my $lastbubble;
 7583:             if ($missing =~ /^(\d+)\.(\d+)$/) {
 7584:                my $question = $1;
 7585:                my $subquestion = $2;
 7586:                if (!defined($first_bubble_line{$question -1})) { next; }
 7587:                my $first = $first_bubble_line{$question-1};
 7588:                my @subans = split(/,/,$subdivided_bubble_lines{$question-1});
 7589:                my $subcount = 1;
 7590:                while ($subcount<$subquestion) {
 7591:                    $first += $subans[$subcount-1];
 7592:                    $subcount ++;
 7593:                }
 7594:                my $count = $subans[$subquestion-1];
 7595:                $lastbubble = $first + $count;
 7596:             } else {
 7597:                 if (!defined($first_bubble_line{$missing - 1})) { next; }
 7598:                 $lastbubble = $first_bubble_line{$missing - 1} + $bubble_lines_per_response{$missing - 1};
 7599:             }
 7600:             if ($lastbubble > $max_bubble) { next; }
 7601: 	    push(@to_correct,$missing);
 7602: 	}
 7603: 	if (@to_correct) {
 7604: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7605: 				     $line,'missingbubble',\@to_correct);
 7606: 	    return (1,$currentphase);
 7607: 	}
 7608: 
 7609:     }
 7610:     return (0,$currentphase+1);
 7611: }
 7612: 
 7613: 
 7614: sub scantron_process_students {
 7615:     my ($r) = @_;
 7616: 
 7617:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7618:     my ($symb)=&get_symb($r);
 7619:     if (!$symb) {
 7620: 	return '';
 7621:     }
 7622:     my $default_form_data=&defaultFormData($symb);
 7623: 
 7624:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7625:     my ($scanlines,$scan_data)=&scantron_getfile();
 7626:     my $classlist=&Apache::loncoursedata::get_classlist();
 7627:     my %idmap=&username_to_idmap($classlist);
 7628:     my $navmap=Apache::lonnavmaps::navmap->new();
 7629:     unless (ref($navmap)) {
 7630:         $r->print(&navmap_errormsg());
 7631:         return '';
 7632:     }  
 7633:     my $map=$navmap->getResourceByUrl($sequence);
 7634:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7635:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
 7636:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 7637:                             \%grader_randomlists_by_symb);
 7638:     my $resource_error;
 7639:     foreach my $resource (@resources) {
 7640:         my $ressymb;
 7641:         if (ref($resource)) {
 7642:             $ressymb = $resource->symb();
 7643:         } else {
 7644:             $resource_error = 1;
 7645:             last;
 7646:         }
 7647:         my ($analysis,$parts) =
 7648:             &scantron_partids_tograde($resource,$env{'request.course.id'},
 7649:                                       $env{'user.name'},$env{'user.domain'},1);
 7650:         $grader_partids_by_symb{$ressymb} = $parts;
 7651:         if (ref($analysis) eq 'HASH') {
 7652:             if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 7653:                 $grader_randomlists_by_symb{$ressymb} = 
 7654:                     $analysis->{'parts_withrandomlist'};
 7655:             }
 7656:         }
 7657:     }
 7658:     if ($resource_error) {
 7659:         $r->print(&navmap_errormsg());
 7660:         return '';
 7661:     }
 7662: 
 7663:     my ($uname,$udom);
 7664:     my $result= <<SCANTRONFORM;
 7665: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 7666:   <input type="hidden" name="command" value="scantron_configphase" />
 7667:   $default_form_data
 7668: SCANTRONFORM
 7669:     $r->print($result);
 7670: 
 7671:     my @delayqueue;
 7672:     my (%completedstudents,%scandata);
 7673:     
 7674:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
 7675:     my $count=&get_todo_count($scanlines,$scan_data);
 7676:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet Status',
 7677:  				    'Bubblesheet Progress',$count,
 7678: 				    'inline',undef,'scantronupload');
 7679:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 7680: 					  'Processing first student');
 7681:     $r->print('<br />');
 7682:     my $start=&Time::HiRes::time();
 7683:     my $i=-1;
 7684:     my $started;
 7685: 
 7686:     my $nav_error;
 7687:     &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse.
 7688:     if ($nav_error) {
 7689:         $r->print(&navmap_errormsg());
 7690:         return '';
 7691:     }
 7692: 
 7693:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
 7694:     # the user and return.
 7695: 
 7696:     if ($ssi_error) {
 7697: 	$r->print("</form>");
 7698: 	&ssi_print_error($r);
 7699: 	$r->print(&show_grading_menu_form($symb));
 7700:         &Apache::lonnet::remove_lock($lock);
 7701: 	return '';		# Dunno why the other returns return '' rather than just returning.
 7702:     }
 7703: 
 7704:     my %lettdig = &letter_to_digits();
 7705:     my $numletts = scalar(keys(%lettdig));
 7706: 
 7707:     while ($i<$scanlines->{'count'}) {
 7708:  	($uname,$udom)=('','');
 7709:  	$i++;
 7710:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7711:  	if ($line=~/^[\s\cz]*$/) { next; }
 7712: 	if ($started) {
 7713: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 7714: 						     'last student');
 7715: 	}
 7716: 	$started=1;
 7717:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7718:  						 $scan_data);
 7719:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
 7720:  					      \%idmap,$i)) {
 7721:   	    &scantron_add_delay(\@delayqueue,$line,
 7722:  				'Unable to find a student that matches',1);
 7723:  	    next;
 7724:   	}
 7725:  	if (exists $completedstudents{$uname}) {
 7726:  	    &scantron_add_delay(\@delayqueue,$line,
 7727:  				'Student '.$uname.' has multiple sheets',2);
 7728:  	    next;
 7729:  	}
 7730:   	($uname,$udom)=split(/:/,$uname);
 7731: 
 7732:         my (%partids_by_symb,$res_error);
 7733:         foreach my $resource (@resources) {
 7734:             my $ressymb;
 7735:             if (ref($resource)) {
 7736:                 $ressymb = $resource->symb();
 7737:             } else {
 7738:                 $res_error = 1;
 7739:                 last;
 7740:             }
 7741:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 7742:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 7743:                 my ($analysis,$parts) =
 7744:                     &scantron_partids_tograde($resource,$env{'request.course.id'},$uname,$udom);
 7745:                 $partids_by_symb{$ressymb} = $parts;
 7746:             } else {
 7747:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
 7748:             }
 7749:         }
 7750: 
 7751:         if ($res_error) {
 7752:             &scantron_add_delay(\@delayqueue,$line,
 7753:                                 'An error occurred while grading student '.$uname,2);
 7754:             next;
 7755:         }
 7756: 
 7757: 	&Apache::lonxml::clear_problem_counter();
 7758:   	&Apache::lonnet::appenv($scan_record);
 7759: 
 7760: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
 7761: 	    &scantron_putfile($scanlines,$scan_data);
 7762: 	}
 7763: 	
 7764:         my $scancode;
 7765:         if ((exists($scan_record->{'scantron.CODE'})) &&
 7766:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 7767:             $scancode = $scan_record->{'scantron.CODE'};
 7768:         } else {
 7769:             $scancode = '';
 7770:         }
 7771: 
 7772:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 7773:                                    \@resources,\%partids_by_symb) eq 'ssi_error') {
 7774:             $ssi_error = 0; # So end of handler error message does not trigger.
 7775:             $r->print("</form>");
 7776:             &ssi_print_error($r);
 7777:             $r->print(&show_grading_menu_form($symb));
 7778:             &Apache::lonnet::remove_lock($lock);
 7779:             return '';      # Why return ''?  Beats me.
 7780:         }
 7781: 
 7782: 	$completedstudents{$uname}={'line'=>$line};
 7783:         if ($env{'form.verifyrecord'}) {
 7784:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 7785:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 7786:             chomp($studentdata);
 7787:             $studentdata =~ s/\r$//;
 7788:             my $studentrecord = '';
 7789:             my $counter = -1;
 7790:             foreach my $resource (@resources) {
 7791:                 my $ressymb = $resource->symb();
 7792:                 ($counter,my $recording) =
 7793:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 7794:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
 7795:                                              \%scantron_config,\%lettdig,$numletts);
 7796:                 $studentrecord .= $recording;
 7797:             }
 7798:             if ($studentrecord ne $studentdata) {
 7799:                 &Apache::lonxml::clear_problem_counter();
 7800:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 7801:                                            \@resources,\%partids_by_symb) eq 'ssi_error') {
 7802:                     $ssi_error = 0; # So end of handler error message does not trigger.
 7803:                     $r->print("</form>");
 7804:                     &ssi_print_error($r);
 7805:                     $r->print(&show_grading_menu_form($symb));
 7806:                     &Apache::lonnet::remove_lock($lock);
 7807:                     delete($completedstudents{$uname});
 7808:                     return '';
 7809:                 }
 7810:                 $counter = -1;
 7811:                 $studentrecord = '';
 7812:                 foreach my $resource (@resources) {
 7813:                     my $ressymb = $resource->symb();
 7814:                     ($counter,my $recording) =
 7815:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 7816:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
 7817:                                                  \%scantron_config,\%lettdig,$numletts);
 7818:                     $studentrecord .= $recording;
 7819:                 }
 7820:                 if ($studentrecord ne $studentdata) {
 7821:                     $r->print('<p><span class="LC_error">');
 7822:                     if ($scancode eq '') {
 7823:                         $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2].',
 7824:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
 7825:                     } else {
 7826:                         $r->print(&mt('Mismatch grading bubble sheet for user: [_1] with ID: [_2] and CODE: [_3].',
 7827:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
 7828:                     }
 7829:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
 7830:                               &Apache::loncommon::start_data_table_header_row()."\n".
 7831:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
 7832:                               &Apache::loncommon::end_data_table_header_row()."\n".
 7833:                               &Apache::loncommon::start_data_table_row().
 7834:                               '<td>'.&mt('Bubble Sheet').'</td>'.
 7835:                               '<td><span class="LC_nobreak">'.$studentdata.'</span></td>'.
 7836:                               &Apache::loncommon::end_data_table_row().
 7837:                               &Apache::loncommon::start_data_table_row().
 7838:                               '<td>Stored submissions</td>'.
 7839:                               '<td><span class="LC_nobreak">'.$studentrecord.'</span></td>'."\n".
 7840:                               &Apache::loncommon::end_data_table_row().
 7841:                               &Apache::loncommon::end_data_table().'</p>');
 7842:                 } else {
 7843:                     $r->print('<br /><span class="LC_warning">'.
 7844:                              &mt('A second grading pass was needed for user: [_1] with ID: [_2], because a mismatch was seen on the first pass.',$uname.':'.$udom,$scan_record->{'scantron.ID'}).'<br />'.
 7845:                              &mt("As a consequence, this user's submission history records two tries.").
 7846:                                  '</span><br />');
 7847:                 }
 7848:             }
 7849:         }
 7850:         if (&Apache::loncommon::connection_aborted($r)) { last; }
 7851:     } continue {
 7852: 	&Apache::lonxml::clear_problem_counter();
 7853: 	&Apache::lonnet::delenv('scantron.');
 7854:     }
 7855:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 7856:     &Apache::lonnet::remove_lock($lock);
 7857: #    my $lasttime = &Time::HiRes::time()-$start;
 7858: #    $r->print("<p>took $lasttime</p>");
 7859: 
 7860:     $r->print("</form>");
 7861:     $r->print(&show_grading_menu_form($symb));
 7862:     return '';
 7863: }
 7864: 
 7865: sub graders_resources_pass {
 7866:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb) = @_;
 7867:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
 7868:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
 7869:         foreach my $resource (@{$resources}) {
 7870:             my $ressymb = $resource->symb();
 7871:             my ($analysis,$parts) =
 7872:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
 7873:                                           $env{'user.name'},$env{'user.domain'},1);
 7874:             $grader_partids_by_symb->{$ressymb} = $parts;
 7875:             if (ref($analysis) eq 'HASH') {
 7876:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 7877:                     $grader_randomlists_by_symb->{$ressymb} =
 7878:                         $analysis->{'parts_withrandomlist'};
 7879:                 }
 7880:             }
 7881:         }
 7882:     }
 7883:     return;
 7884: }
 7885: 
 7886: sub grade_student_bubbles {
 7887:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts) = @_;
 7888:     if (ref($resources) eq 'ARRAY') {
 7889:         my $count = 0;
 7890:         foreach my $resource (@{$resources}) {
 7891:             my $ressymb = $resource->symb();
 7892:             my %form = ('submitted'      => 'scantron',
 7893:                         'grade_target'   => 'grade',
 7894:                         'grade_username' => $uname,
 7895:                         'grade_domain'   => $udom,
 7896:                         'grade_courseid' => $env{'request.course.id'},
 7897:                         'grade_symb'     => $ressymb,
 7898:                         'CODE'           => $scancode
 7899:                        );
 7900:             if (ref($parts) eq 'HASH') {
 7901:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
 7902:                     foreach my $part (@{$parts->{$ressymb}}) {
 7903:                         $form{'scantron_questnum_start.'.$part} =
 7904:                             1+$env{'form.scantron.first_bubble_line.'.$count};
 7905:                         $count++;
 7906:                     }
 7907:                 }
 7908:             }
 7909:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
 7910:             return 'ssi_error' if ($ssi_error);
 7911:             last if (&Apache::loncommon::connection_aborted($r));
 7912:         }
 7913:     }
 7914:     return;
 7915: }
 7916: 
 7917: sub scantron_upload_scantron_data {
 7918:     my ($r)=@_;
 7919:     my $dom = $env{'request.role.domain'};
 7920:     my $domdesc = &Apache::lonnet::domain($dom,'description');
 7921:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
 7922:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
 7923: 							  'domainid',
 7924: 							  'coursename',$dom);
 7925:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
 7926:                        ('&nbsp'x2).&mt('(shows course personnel)'); 
 7927:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 7928:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
 7929:     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.");
 7930:     $r->print('
 7931: <script type="text/javascript" language="javascript">
 7932:     function checkUpload(formname) {
 7933: 	if (formname.upfile.value == "") {
 7934: 	    alert("'.$nofile_alert.'");
 7935: 	    return false;
 7936: 	}
 7937:         if (formname.courseid.value == "") {
 7938:             alert("'.$nocourseid_alert.'");
 7939:             return false;
 7940:         }
 7941: 	formname.submit();
 7942:     }
 7943: 
 7944:     function ToSyllabus() {
 7945:         var cdom = '."'$dom'".';
 7946:         var cnum = document.rules.courseid.value;
 7947:         if (cdom == "" || cdom == null) {
 7948:             return;
 7949:         }
 7950:         if (cnum == "" || cnum == null) {
 7951:            return;
 7952:         }
 7953:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
 7954:                             "height=350,width=350,scrollbars=yes,menubar=no");
 7955:         return;
 7956:     }
 7957: 
 7958: </script>
 7959: 
 7960: <h3>'.&mt('Send scanned bubblesheet data to a course').'</h3>
 7961: 
 7962: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 7963: '.$default_form_data.
 7964:   &Apache::lonhtmlcommon::start_pick_box().
 7965:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
 7966:   '<input name="courseid" type="text" size="30" />'.$select_link.
 7967:   &Apache::lonhtmlcommon::row_closure().
 7968:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
 7969:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
 7970:   &Apache::lonhtmlcommon::row_closure().
 7971:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
 7972:   '<input name="domainid" type="hidden" />'.$domdesc.
 7973:   &Apache::lonhtmlcommon::row_closure().
 7974:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
 7975:   '<input type="file" name="upfile" size="50" />'.
 7976:   &Apache::lonhtmlcommon::row_closure(1).
 7977:   &Apache::lonhtmlcommon::end_pick_box().'<br />
 7978: 
 7979: <input name="command" value="scantronupload_save" type="hidden" />
 7980: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 7981: </form>
 7982: ');
 7983:     return '';
 7984: }
 7985: 
 7986: 
 7987: sub scantron_upload_scantron_data_save {
 7988:     my($r)=@_;
 7989:     my ($symb)=&get_symb($r,1);
 7990:     my $doanotherupload=
 7991: 	'<br /><form action="/adm/grades" method="post">'."\n".
 7992: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
 7993: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
 7994: 	'</form>'."\n";
 7995:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 7996: 	!&Apache::lonnet::allowed('usc',
 7997: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
 7998: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
 7999: 	if ($symb) {
 8000: 	    $r->print(&show_grading_menu_form($symb));
 8001: 	} else {
 8002: 	    $r->print($doanotherupload);
 8003: 	}
 8004: 	return '';
 8005:     }
 8006:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
 8007:     my $uploadedfile;
 8008:     $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
 8009:     if (length($env{'form.upfile'}) < 2) {
 8010:         $r->print(&mt('[_1]Error:[_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.','<span class="LC_error">','</span>','<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8011:     } else {
 8012:         my $result = 
 8013:             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
 8014:                                             $env{'form.courseid'},$env{'form.domainid'});
 8015: 	if ($result =~ m{^/uploaded/}) {
 8016: 	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
 8017:                           '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
 8018: 			  '<span class="LC_filename">'.$result.'</span>'));
 8019:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
 8020:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
 8021:                                                        $env{'form.courseid'},$uploadedfile));
 8022: 	} else {
 8023: 	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
 8024:                           '<span class="LC_error">','</span>',$result,
 8025: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8026: 	}
 8027:     }
 8028:     if ($symb) {
 8029: 	$r->print(&scantron_selectphase($r,$uploadedfile));
 8030:     } else {
 8031: 	$r->print($doanotherupload);
 8032:     }
 8033:     return '';
 8034: }
 8035: 
 8036: sub validate_uploaded_scantron_file {
 8037:     my ($cdom,$cname,$fname) = @_;
 8038:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
 8039:     my @lines;
 8040:     if ($scanlines ne '-1') {
 8041:         @lines=split("\n",$scanlines,-1);
 8042:     }
 8043:     my $output;
 8044:     if (@lines) {
 8045:         my (%counts,$max_match_format);
 8046:         my ($max_match_count,$max_match_pct) = (0,0);
 8047:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
 8048:         my %idmap = &username_to_idmap($classlist);
 8049:         foreach my $key (keys(%idmap)) {
 8050:             my $lckey = lc($key);
 8051:             $idmap{$lckey} = $idmap{$key};
 8052:         }
 8053:         my %unique_formats;
 8054:         my @formatlines = &get_scantronformat_file();
 8055:         foreach my $line (@formatlines) {
 8056:             chomp($line);
 8057:             my @config = split(/:/,$line);
 8058:             my $idstart = $config[5];
 8059:             my $idlength = $config[6];
 8060:             if (($idstart ne '') && ($idlength > 0)) {
 8061:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
 8062:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
 8063:                 } else {
 8064:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
 8065:                 }
 8066:             }
 8067:         }
 8068:         foreach my $key (keys(%unique_formats)) {
 8069:             my ($idstart,$idlength) = split(':',$key);
 8070:             %{$counts{$key}} = (
 8071:                                'found'   => 0,
 8072:                                'total'   => 0,
 8073:                               );
 8074:             foreach my $line (@lines) {
 8075:                 next if ($line =~ /^#/);
 8076:                 next if ($line =~ /^[\s\cz]*$/);
 8077:                 my $id = substr($line,$idstart-1,$idlength);
 8078:                 $id = lc($id);
 8079:                 if (exists($idmap{$id})) {
 8080:                     $counts{$key}{'found'} ++;
 8081:                 }
 8082:                 $counts{$key}{'total'} ++;
 8083:             }
 8084:             if ($counts{$key}{'total'}) {
 8085:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
 8086:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
 8087:                     $max_match_pct = $percent_match;
 8088:                     $max_match_format = $key;
 8089:                     $max_match_count = $counts{$key}{'total'};
 8090:                 }
 8091:             }
 8092:         }
 8093:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
 8094:             my $format_descs;
 8095:             my $numwithformat = @{$unique_formats{$max_match_format}};
 8096:             for (my $i=0; $i<$numwithformat; $i++) {
 8097:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
 8098:                 if ($i<$numwithformat-2) {
 8099:                     $format_descs .= '"<i>'.$desc.'</i>", ';
 8100:                 } elsif ($i==$numwithformat-2) {
 8101:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
 8102:                 } elsif ($i==$numwithformat-1) {
 8103:                     $format_descs .= '"<i>'.$desc.'</i>"';
 8104:                 }
 8105:             }
 8106:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
 8107:             $output .= '<br />'.&mt('Comparison of student IDs in the uploaded file with the course roster found matches for [_1] of the [_2] entries in the file (for the format defined for [_3]).','<b>'.$showpct.'</b>','<b>'.$max_match_count.'</b>',$format_descs).
 8108:                        '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
 8109:                        '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
 8110:                        '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
 8111:                                   '<i>'.$cdom.'</i>').'</li>'.
 8112:                        '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
 8113:                        '<li>'.&mt('The course roster is not up to date').'</li>'.
 8114:                        '</ul>';
 8115:         }
 8116:     } else {
 8117:         $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
 8118:     }
 8119:     return $output;
 8120: }
 8121: 
 8122: sub valid_file {
 8123:     my ($requested_file)=@_;
 8124:     foreach my $filename (sort(&scantron_filenames())) {
 8125: 	if ($requested_file eq $filename) { return 1; }
 8126:     }
 8127:     return 0;
 8128: }
 8129: 
 8130: sub scantron_download_scantron_data {
 8131:     my ($r)=@_;
 8132:     my $default_form_data=&defaultFormData(&get_symb($r,1));
 8133:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 8134:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 8135:     my $file=$env{'form.scantron_selectfile'};
 8136:     if (! &valid_file($file)) {
 8137: 	$r->print('
 8138: 	<p>
 8139: 	    '.&mt('The requested file name was invalid.').'
 8140:         </p>
 8141: ');
 8142: 	$r->print(&show_grading_menu_form(&get_symb($r,1)));
 8143: 	return;
 8144:     }
 8145:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
 8146:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
 8147:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
 8148:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
 8149:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
 8150:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
 8151:     $r->print('
 8152:     <p>
 8153: 	'.&mt('[_1]Original[_2] file as uploaded by the scantron office.',
 8154: 	      '<a href="'.$orig.'">','</a>').'
 8155:     </p>
 8156:     <p>
 8157: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
 8158: 	      '<a href="'.$corrected.'">','</a>').'
 8159:     </p>
 8160:     <p>
 8161: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
 8162: 	      '<a href="'.$skipped.'">','</a>').'
 8163:     </p>
 8164: ');
 8165:     $r->print(&show_grading_menu_form(&get_symb($r,1)));
 8166:     return '';
 8167: }
 8168: 
 8169: sub checkscantron_results {
 8170:     my ($r) = @_;
 8171:     my ($symb)=&get_symb($r);
 8172:     if (!$symb) {return '';}
 8173:     my $grading_menu_button=&show_grading_menu_form($symb);
 8174:     my $cid = $env{'request.course.id'};
 8175:     my %lettdig = &letter_to_digits();
 8176:     my $numletts = scalar(keys(%lettdig));
 8177:     my $cnum = $env{'course.'.$cid.'.num'};
 8178:     my $cdom = $env{'course.'.$cid.'.domain'};
 8179:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8180:     my %record;
 8181:     my %scantron_config =
 8182:         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
 8183:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
 8184:     my $classlist=&Apache::loncoursedata::get_classlist();
 8185:     my %idmap=&Apache::grades::username_to_idmap($classlist);
 8186:     my $navmap=Apache::lonnavmaps::navmap->new();
 8187:     unless (ref($navmap)) {
 8188:         $r->print(&navmap_errormsg());
 8189:         return '';
 8190:     }
 8191:     my $map=$navmap->getResourceByUrl($sequence);
 8192:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8193:     my (%grader_partids_by_symb,%grader_randomlists_by_symb);
 8194:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,                             \%grader_randomlists_by_symb);
 8195: 
 8196:     my ($uname,$udom);
 8197:     my (%scandata,%lastname,%bylast);
 8198:     $r->print('
 8199: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
 8200: 
 8201:     my @delayqueue;
 8202:     my %completedstudents;
 8203: 
 8204:     my $count=&Apache::grades::get_todo_count($scanlines,$scan_data);
 8205:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,'Bubblesheet/Submissions Comparison Status',
 8206:                                     'Progress of Bubblesheet Data/Submission Records Comparison',$count,
 8207:                                     'inline',undef,'checkscantron');
 8208:     my ($username,$domain,$started);
 8209:     my $nav_error;
 8210:     &scantron_get_maxbubble(\$nav_error); # Need the bubble lines array to parse.
 8211:     if ($nav_error) {
 8212:         $r->print(&navmap_errormsg());
 8213:         return '';
 8214:     }
 8215: 
 8216:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
 8217:                                           'Processing first student');
 8218:     my $start=&Time::HiRes::time();
 8219:     my $i=-1;
 8220: 
 8221:     while ($i<$scanlines->{'count'}) {
 8222:         ($username,$domain,$uname)=('','','');
 8223:         $i++;
 8224:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
 8225:         if ($line=~/^[\s\cz]*$/) { next; }
 8226:         if ($started) {
 8227:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
 8228:                                                      'last student');
 8229:         }
 8230:         $started=1;
 8231:         my $scan_record=
 8232:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
 8233:                                                      $scan_data);
 8234:         unless ($uname=&Apache::grades::scantron_find_student($scan_record,$scan_data,
 8235:                                                               \%idmap,$i)) {
 8236:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8237:                                 'Unable to find a student that matches',1);
 8238:             next;
 8239:         }
 8240:         if (exists $completedstudents{$uname}) {
 8241:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8242:                                 'Student '.$uname.' has multiple sheets',2);
 8243:             next;
 8244:         }
 8245:         my $pid = $scan_record->{'scantron.ID'};
 8246:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
 8247:         push(@{$bylast{$lastname{$pid}}},$pid);
 8248:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8249:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8250:         chomp($scandata{$pid});
 8251:         $scandata{$pid} =~ s/\r$//;
 8252:         ($username,$domain)=split(/:/,$uname);
 8253:         my $counter = -1;
 8254:         foreach my $resource (@resources) {
 8255:             my $parts;
 8256:             my $ressymb = $resource->symb();
 8257:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8258:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8259:                 (my $analysis,$parts) =
 8260:                     &scantron_partids_tograde($resource,$env{'request.course.id'},$username,$domain);
 8261:             } else {
 8262:                 $parts = $grader_partids_by_symb{$ressymb};
 8263:             }
 8264:             ($counter,my $recording) =
 8265:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
 8266:                                          $scandata{$pid},$parts,
 8267:                                          \%scantron_config,\%lettdig,$numletts);
 8268:             $record{$pid} .= $recording;
 8269:         }
 8270:     }
 8271:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8272:     $r->print('<br />');
 8273:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
 8274:     $passed = 0;
 8275:     $failed = 0;
 8276:     $numstudents = 0;
 8277:     foreach my $last (sort(keys(%bylast))) {
 8278:         if (ref($bylast{$last}) eq 'ARRAY') {
 8279:             foreach my $pid (sort(@{$bylast{$last}})) {
 8280:                 my $showscandata = $scandata{$pid};
 8281:                 my $showrecord = $record{$pid};
 8282:                 $showscandata =~ s/\s/&nbsp;/g;
 8283:                 $showrecord =~ s/\s/&nbsp;/g;
 8284:                 if ($scandata{$pid} eq $record{$pid}) {
 8285:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
 8286:                     $okstudents .= '<tr class="'.$css_class.'">'.
 8287: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 8288: '</tr>'."\n".
 8289: '<tr class="'.$css_class.'">'."\n".
 8290: '<td>Submissions</td><td>'.$showrecord.'</td></tr>'."\n";
 8291:                     $passed ++;
 8292:                 } else {
 8293:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
 8294:                     $badstudents .= '<tr class="'.$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".
 8295: '</tr>'."\n".
 8296: '<tr class="'.$css_class.'">'."\n".
 8297: '<td>Submissions</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 8298: '</tr>'."\n";
 8299:                     $failed ++;
 8300:                 }
 8301:                 $numstudents ++;
 8302:             }
 8303:         }
 8304:     }
 8305:     $r->print('<p>'.&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for <b>[quant,_1,student]</b>  ([_2] scantron lines/student).',$numstudents,$env{'form.scantron_maxbubble'}).'</p>');
 8306:     $r->print('<p>'.&mt('Exact matches for <b>[quant,_1,student]</b>.',$passed).'<br />'.&mt('Discrepancies detected for <b>[quant,_1,student]</b>.',$failed).'</p>');
 8307:     if ($passed) {
 8308:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
 8309:         $r->print(&Apache::loncommon::start_data_table()."\n".
 8310:                  &Apache::loncommon::start_data_table_header_row()."\n".
 8311:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 8312:                  &Apache::loncommon::end_data_table_header_row()."\n".
 8313:                  $okstudents."\n".
 8314:                  &Apache::loncommon::end_data_table().'<br />');
 8315:     }
 8316:     if ($failed) {
 8317:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
 8318:         $r->print(&Apache::loncommon::start_data_table()."\n".
 8319:                  &Apache::loncommon::start_data_table_header_row()."\n".
 8320:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 8321:                  &Apache::loncommon::end_data_table_header_row()."\n".
 8322:                  $badstudents."\n".
 8323:                  &Apache::loncommon::end_data_table()).'<br />'.
 8324:                  &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.');  
 8325:     }
 8326:     $r->print('</form><br />'.$grading_menu_button);
 8327:     return;
 8328: }
 8329: 
 8330: sub verify_scantron_grading {
 8331:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
 8332:         $scantron_config,$lettdig,$numletts) = @_;
 8333:     my ($record,%expected,%startpos);
 8334:     return ($counter,$record) if (!ref($resource));
 8335:     return ($counter,$record) if (!$resource->is_problem());
 8336:     my $symb = $resource->symb();
 8337:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
 8338:     foreach my $part_id (@{$partids}) {
 8339:         $counter ++;
 8340:         $expected{$part_id} = 0;
 8341:         if ($env{"form.scantron.sub_bubblelines.$counter"}) {
 8342:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$counter"});
 8343:             foreach my $item (@sub_lines) {
 8344:                 $expected{$part_id} += $item;
 8345:             }
 8346:         } else {
 8347:             $expected{$part_id} = $env{"form.scantron.bubblelines.$counter"};
 8348:         }
 8349:         $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
 8350:     }
 8351:     if ($symb) {
 8352:         my %recorded;
 8353:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
 8354:         if ($returnhash{'version'}) {
 8355:             my %lasthash=();
 8356:             my $version;
 8357:             for ($version=1;$version<=$returnhash{'version'};$version++) {
 8358:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
 8359:                     $lasthash{$key}=$returnhash{$version.':'.$key};
 8360:                 }
 8361:             }
 8362:             foreach my $key (keys(%lasthash)) {
 8363:                 if ($key =~ /\.scantron$/) {
 8364:                     my $value = &unescape($lasthash{$key});
 8365:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
 8366:                     if ($value eq '') {
 8367:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
 8368:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
 8369:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8370:                             }
 8371:                         }
 8372:                     } else {
 8373:                         my @tocheck;
 8374:                         my @items = split(//,$value);
 8375:                         if (($scantron_config->{'Qon'} eq 'letter') ||
 8376:                             ($scantron_config->{'Qon'} eq 'number')) {
 8377:                             if (@items < $expected{$part_id}) {
 8378:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
 8379:                                 my @singles = split(//,$fragment);
 8380:                                 foreach my $pos (@singles) {
 8381:                                     if ($pos eq ' ') {
 8382:                                         push(@tocheck,$pos);
 8383:                                     } else {
 8384:                                         my $next = shift(@items);
 8385:                                         push(@tocheck,$next);
 8386:                                     }
 8387:                                 }
 8388:                             } else {
 8389:                                 @tocheck = @items;
 8390:                             }
 8391:                             foreach my $letter (@tocheck) {
 8392:                                 if ($scantron_config->{'Qon'} eq 'letter') {
 8393:                                     if ($letter !~ /^[A-J]$/) {
 8394:                                         $letter = $scantron_config->{'Qoff'};
 8395:                                     }
 8396:                                     $recorded{$part_id} .= $letter;
 8397:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
 8398:                                     my $digit;
 8399:                                     if ($letter !~ /^[A-J]$/) {
 8400:                                         $digit = $scantron_config->{'Qoff'};
 8401:                                     } else {
 8402:                                         $digit = $lettdig->{$letter};
 8403:                                     }
 8404:                                     $recorded{$part_id} .= $digit;
 8405:                                 }
 8406:                             }
 8407:                         } else {
 8408:                             @tocheck = @items;
 8409:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
 8410:                                 my $curr_sub = shift(@tocheck);
 8411:                                 my $digit;
 8412:                                 if ($curr_sub =~ /^[A-J]$/) {
 8413:                                     $digit = $lettdig->{$curr_sub}-1;
 8414:                                 }
 8415:                                 if ($curr_sub eq 'J') {
 8416:                                     $digit += scalar($numletts);
 8417:                                 }
 8418:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 8419:                                     if ($j == $digit) {
 8420:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
 8421:                                     } else {
 8422:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8423:                                     }
 8424:                                 }
 8425:                             }
 8426:                         }
 8427:                     }
 8428:                 }
 8429:             }
 8430:         }
 8431:         foreach my $part_id (@{$partids}) {
 8432:             if ($recorded{$part_id} eq '') {
 8433:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
 8434:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 8435:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 8436:                     }
 8437:                 }
 8438:             }
 8439:             $record .= $recorded{$part_id};
 8440:         }
 8441:     }
 8442:     return ($counter,$record);
 8443: }
 8444: 
 8445: sub letter_to_digits { 
 8446:     my %lettdig = (
 8447:                     A => 1,
 8448:                     B => 2,
 8449:                     C => 3,
 8450:                     D => 4,
 8451:                     E => 5,
 8452:                     F => 6,
 8453:                     G => 7,
 8454:                     H => 8,
 8455:                     I => 9,
 8456:                     J => 0,
 8457:                   );
 8458:     return %lettdig;
 8459: }
 8460: 
 8461: 
 8462: #-------- end of section for handling grading scantron forms -------
 8463: #
 8464: #-------------------------------------------------------------------
 8465: 
 8466: #-------------------------- Menu interface -------------------------
 8467: #
 8468: #--- Show a Grading Menu button - Calls the next routine ---
 8469: sub show_grading_menu_form {
 8470:     my ($symb)=@_;
 8471:     my $result.='<br /><form action="/adm/grades" method="post">'."\n".
 8472: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8473: 	'<input type="hidden" name="saveState"  value="'.$env{'form.saveState'}.'" />'."\n".
 8474: 	'<input type="hidden" name="command" value="gradingmenu" />'."\n".
 8475: 	'<input type="submit" name="submit" value="'.&mt('Grading Menu').'" />'."\n".
 8476: 	'</form>'."\n";
 8477:     return $result;
 8478: }
 8479: 
 8480: # -- Retrieve choices for grading form
 8481: sub savedState {
 8482:     my %savedState = ();
 8483:     if ($env{'form.saveState'}) {
 8484: 	foreach (split(/:/,$env{'form.saveState'})) {
 8485: 	    my ($key,$value) = split(/=/,$_,2);
 8486: 	    $savedState{$key} = $value;
 8487: 	}
 8488:     }
 8489:     return \%savedState;
 8490: }
 8491: 
 8492: sub grading_menu {
 8493:     my ($request) = @_;
 8494:     my ($symb)=&get_symb($request);
 8495:     if (!$symb) {return '';}
 8496:     my $probTitle = &Apache::lonnet::gettitle($symb);
 8497:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 8498: 
 8499:     $request->print($table);
 8500:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
 8501:                   'handgrade'=>$hdgrade,
 8502:                   'probTitle'=>$probTitle,
 8503:                   'command'=>'submit_options',
 8504:                   'saveState'=>"",
 8505:                   'gradingMenu'=>1,
 8506:                   'showgrading'=>"yes");
 8507:     
 8508:     my $url1 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8509:     
 8510:     $fields{'command'} = 'csvform';
 8511:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8512:     
 8513:     $fields{'command'} = 'processclicker';
 8514:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8515:     
 8516:     $fields{'command'} = 'scantron_selectphase';
 8517:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8518:     
 8519:     my @menu = ({	categorytitle=>'Course Grading',
 8520:             items =>[
 8521:                         {	linktext => 'Manual Grading/View Submissions',
 8522:                     		url => $url1,
 8523:                     		permission => 'F',
 8524:                     		icon => 'edit-find-replace.png',
 8525:                     		linktitle => 'Start the process of hand grading submissions.'
 8526:                         },
 8527:                 	    {	linktext => 'Upload Scores',
 8528:                     		url => $url2,
 8529:                     		permission => 'F',
 8530:                     		icon => 'uploadscores.png',
 8531:                     		linktitle => 'Specify a file containing the class scores for current resource.'
 8532:                 	    },
 8533:                 	    {	linktext => 'Process Clicker',
 8534:                     		url => $url3,
 8535:                     		permission => 'F',
 8536:                     		icon => 'addClickerInfoFile.png',
 8537:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
 8538:                 	    },
 8539:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
 8540:                     		url => $url4,
 8541:                     		permission => 'F',
 8542:                     		icon => 'stat.png',
 8543:                     		linktitle => 'Grade scantron exams, upload/download scantron data files, and review previously graded scantron exams.'
 8544:                 	    }
 8545:                     ]
 8546:             });
 8547: 
 8548:     #$fields{'command'} = 'verify';
 8549:     #$url = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 8550:     #
 8551:     # Create the menu
 8552:     my $Str;
 8553:     # $Str .= '<h2>'.&mt('Please select a grading task').'</h2>';
 8554:     $Str .= '<form method="post" action="" name="gradingMenu">';
 8555:     $Str .= '<input type="hidden" name="command" value="" />'.
 8556:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8557: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 8558: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 8559: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 8560: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 8561: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 8562: 
 8563:     $Str .= Apache::lonhtmlcommon::generate_menu(@menu);
 8564:     #$menudata->{'jscript'}
 8565:     $Str .='<hr /><input type="button" value="'.&mt('Verify Receipt No.').'" '.
 8566:         ' onclick="javascript:checkChoice(document.forms.gradingMenu,\'5\',\'verify\')" '.
 8567:         ' /> '.
 8568:         &Apache::lonnet::recprefix($env{'request.course.id'}).
 8569:         '-<input type="text" name="receipt" size="4" onchange="javascript:checkReceiptNo(this.form,\'OK\')" />';
 8570: 
 8571:     $Str .="</form>\n";
 8572:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box.");
 8573:     $request->print(<<GRADINGMENUJS);
 8574: <script type="text/javascript" language="javascript">
 8575:     function checkChoice(formname,val,cmdx) {
 8576: 	if (val <= 2) {
 8577: 	    var cmd = radioSelection(formname.radioChoice);
 8578: 	    var cmdsave = cmd;
 8579: 	} else {
 8580: 	    cmd = cmdx;
 8581: 	    cmdsave = 'submission';
 8582: 	}
 8583: 	formname.command.value = cmd;
 8584: 	if (val < 5) formname.submit();
 8585: 	if (val == 5) {
 8586: 	    if (!checkReceiptNo(formname,'notOK')) { 
 8587: 	        return false;
 8588: 	    } else {
 8589: 	        formname.submit();
 8590: 	    }
 8591: 	}
 8592:     }
 8593: 
 8594:     function checkReceiptNo(formname,nospace) {
 8595: 	var receiptNo = formname.receipt.value;
 8596: 	var checkOpt = false;
 8597: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 8598: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 8599: 	if (checkOpt) {
 8600: 	    alert("$receiptalert");
 8601: 	    formname.receipt.value = "";
 8602: 	    formname.receipt.focus();
 8603: 	    return false;
 8604: 	}
 8605: 	return true;
 8606:     }
 8607: </script>
 8608: GRADINGMENUJS
 8609:     &commonJSfunctions($request);
 8610:     return $Str;    
 8611: }
 8612: 
 8613: 
 8614: #--- Displays the submissions first page -------
 8615: sub submit_options {
 8616:     my ($request) = @_;
 8617:     my ($symb)=&get_symb($request);
 8618:     if (!$symb) {return '';}
 8619:     my $probTitle = &Apache::lonnet::gettitle($symb);
 8620: 
 8621:     my $receiptalert = &mt("Please enter a receipt number given by a student in the receipt box."); 
 8622:     $request->print(<<GRADINGMENUJS);
 8623: <script type="text/javascript" language="javascript">
 8624:     function checkChoice(formname,val,cmdx) {
 8625: 	if (val <= 2) {
 8626: 	    var cmd = radioSelection(formname.radioChoice);
 8627: 	    var cmdsave = cmd;
 8628: 	} else {
 8629: 	    cmd = cmdx;
 8630: 	    cmdsave = 'submission';
 8631: 	}
 8632: 	formname.command.value = cmd;
 8633: 	formname.saveState.value = "saveCmd="+cmdsave+":saveSec="+pullDownSelection(formname.section)+
 8634: 	    ":saveSub="+pullDownSelection(formname.submitonly)+":saveStatus="+pullDownSelection(formname.Status);
 8635: 	if (val < 5) formname.submit();
 8636: 	if (val == 5) {
 8637: 	    if (!checkReceiptNo(formname,'notOK')) { return false;}
 8638: 	    formname.submit();
 8639: 	}
 8640: 	if (val < 7) formname.submit();
 8641:     }
 8642: 
 8643:     function checkReceiptNo(formname,nospace) {
 8644: 	var receiptNo = formname.receipt.value;
 8645: 	var checkOpt = false;
 8646: 	if (nospace == "OK" && isNaN(receiptNo)) {checkOpt = true;}
 8647: 	if (nospace == "notOK" && (isNaN(receiptNo) || receiptNo == "")) {checkOpt = true;}
 8648: 	if (checkOpt) {
 8649: 	    alert("$receiptalert");
 8650: 	    formname.receipt.value = "";
 8651: 	    formname.receipt.focus();
 8652: 	    return false;
 8653: 	}
 8654: 	return true;
 8655:     }
 8656: </script>
 8657: GRADINGMENUJS
 8658:     &commonJSfunctions($request);
 8659:     my ($table,undef,$hdgrade) = &showResourceInfo($symb,$probTitle);
 8660:     my $result;
 8661:     my (undef,$sections) = &getclasslist('all','0');
 8662:     my $savedState = &savedState();
 8663:     my $saveCmd = ($$savedState{'saveCmd'} eq '' ? 'submission' : $$savedState{'saveCmd'});
 8664:     my $saveSec = ($$savedState{'saveSec'} eq '' ? 'all' : $$savedState{'saveSec'});
 8665:     my $saveSub = ($$savedState{'saveSub'} eq '' ? 'all' : $$savedState{'saveSub'});
 8666:     my $saveStatus = ($$savedState{'saveStatus'} eq '' ? 'Active' : $$savedState{'saveStatus'});
 8667: 
 8668:     # Preselect sections
 8669:     my $selsec="";
 8670:     if (ref($sections)) {
 8671:         foreach my $section (sort(@$sections)) {
 8672:             $selsec.='<option value="'.$section.'" '.
 8673:                 ($saveSec eq $section ? 'selected="selected"':'').'>'.$section.'</option>'."\n";
 8674:         }
 8675:     }
 8676: 
 8677:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 8678: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 8679: 	'<input type="hidden" name="handgrade"   value="'.$hdgrade.'" />'."\n".
 8680: 	'<input type="hidden" name="probTitle"   value="'.$probTitle.'" />'."\n".
 8681: 	'<input type="hidden" name="command"     value="" />'."\n".
 8682: 	'<input type="hidden" name="saveState"   value="" />'."\n".
 8683: 	'<input type="hidden" name="gradingMenu" value="1" />'."\n".
 8684: 	'<input type="hidden" name="showgrading" value="yes" />'."\n";
 8685: 
 8686:     $result.='
 8687: <h2>
 8688:   '.&mt('Grade Current Resource').'
 8689: </h2>
 8690: <div>
 8691:   '.$table.'
 8692: </div>
 8693: 
 8694: <div class="LC_columnSection">
 8695:   
 8696:     <fieldset>
 8697:       <legend>
 8698:        '.&mt('Sections').'
 8699:       </legend>
 8700:       <select name="section" multiple="multiple" size="5">'."\n";
 8701:     $result.= $selsec;
 8702:     $result.= '<option value="all" '.($saveSec eq 'all' ? 'selected="selected"' : ''). '>all</option></select> &nbsp; ';
 8703:     $result.='
 8704:     </fieldset>
 8705:   
 8706:     <fieldset>
 8707:       <legend>
 8708:         '.&mt('Groups').'
 8709:       </legend>
 8710:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
 8711:     </fieldset>
 8712:   
 8713:     <fieldset>
 8714:       <legend>
 8715:         '.&mt('Access Status').'
 8716:       </legend>
 8717:       '.&Apache::lonhtmlcommon::StatusOptions($saveStatus,undef,5,undef,'mult').'
 8718:     </fieldset>
 8719:   
 8720:     <fieldset>
 8721:       <legend>
 8722:         '.&mt('Submission Status').'
 8723:       </legend>
 8724:       <select name="submitonly" size="5">
 8725: 	         <option value="yes" '.      ($saveSub eq 'yes'       ? 'selected="selected"' : '').'>'.&mt('with submissions').'</option>
 8726: 	         <option value="queued" '.   ($saveSub eq 'queued'    ? 'selected="selected"' : '').'>'.&mt('in grading queue').'</option>
 8727: 	         <option value="graded" '.   ($saveSub eq 'graded'    ? 'selected="selected"' : '').'>'.&mt('with ungraded submissions').'</option>
 8728: 	         <option value="incorrect" '.($saveSub eq 'incorrect' ? 'selected="selected"' : '').'>'.&mt('with incorrect submissions').'</option>
 8729:                  <option value="all" '.      ($saveSub eq 'all'       ? 'selected="selected"' : '').'>'.&mt('with any status').'</option>
 8730:       </select>
 8731:     </fieldset>
 8732:   
 8733: </div>
 8734: 
 8735: <br />
 8736:           <div>
 8737:             <div>
 8738:               <label>
 8739:                 <input type="radio" name="radioChoice" value="submission" '.
 8740:                   ($saveCmd eq 'submission' ? 'checked="checked"' : '').' /> '.
 8741:              &mt('Select individual students to grade and view submissions.').'
 8742: 	      </label> 
 8743:             </div>
 8744:             <div>
 8745: 	      <label>
 8746:                 <input type="radio" name="radioChoice" value="viewgrades" '.
 8747:                   ($saveCmd eq 'viewgrades' ? 'checked="checked"' : '').' /> '.
 8748:                     &mt('Grade all selected students in a grading table.').'
 8749:               </label>
 8750:             </div>
 8751:             <div>
 8752: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 8753:             </div>
 8754:           </div>
 8755: 
 8756: 
 8757:         <h2>
 8758:          '.&mt('Grade Complete Folder for One Student').'
 8759:         </h2>
 8760:         <div>
 8761:             <div>
 8762:               <label>
 8763:                 <input type="radio" name="radioChoice" value="pickStudentPage" '.
 8764: 	  ($saveCmd eq 'pickStudentPage' ? 'checked="checked"' : '').' /> '.
 8765:   &mt('The <b>complete</b> page/sequence/folder: For one student').'
 8766:               </label>
 8767:             </div>
 8768:             <div>
 8769: 	      <input type="button" onclick="javascript:checkChoice(this.form,\'2\');" value="'.&mt('Next').' &rarr;" />
 8770:             </div>
 8771:         </div>
 8772:   </form>';
 8773:     $result .= &show_grading_menu_form($symb);
 8774:     return $result;
 8775: }
 8776: 
 8777: sub reset_perm {
 8778:     undef(%perm);
 8779: }
 8780: 
 8781: sub init_perm {
 8782:     &reset_perm();
 8783:     foreach my $test_perm ('vgr','mgr','opa') {
 8784: 
 8785: 	my $scope = $env{'request.course.id'};
 8786: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
 8787: 
 8788: 	    $scope .= '/'.$env{'request.course.sec'};
 8789: 	    if ( $perm{$test_perm}=
 8790: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
 8791: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
 8792: 	    } else {
 8793: 		delete($perm{$test_perm});
 8794: 	    }
 8795: 	}
 8796:     }
 8797: }
 8798: 
 8799: sub gather_clicker_ids {
 8800:     my %clicker_ids;
 8801: 
 8802:     my $classlist = &Apache::loncoursedata::get_classlist();
 8803: 
 8804:     # Set up a couple variables.
 8805:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
 8806:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
 8807:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
 8808: 
 8809:     foreach my $student (keys(%$classlist)) {
 8810:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
 8811:         my $username = $classlist->{$student}->[$username_idx];
 8812:         my $domain   = $classlist->{$student}->[$domain_idx];
 8813:         my $clickers =
 8814: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 8815:         foreach my $id (split(/\,/,$clickers)) {
 8816:             $id=~s/^[\#0]+//;
 8817:             $id=~s/[\-\:]//g;
 8818:             if (exists($clicker_ids{$id})) {
 8819: 		$clicker_ids{$id}.=','.$username.':'.$domain;
 8820:             } else {
 8821: 		$clicker_ids{$id}=$username.':'.$domain;
 8822:             }
 8823:         }
 8824:     }
 8825:     return %clicker_ids;
 8826: }
 8827: 
 8828: sub gather_adv_clicker_ids {
 8829:     my %clicker_ids;
 8830:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
 8831:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 8832:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 8833:     foreach my $element (sort(keys(%coursepersonnel))) {
 8834:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
 8835:             my ($puname,$pudom)=split(/\:/,$person);
 8836:             my $clickers =
 8837: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
 8838:             foreach my $id (split(/\,/,$clickers)) {
 8839: 		$id=~s/^[\#0]+//;
 8840:                 $id=~s/[\-\:]//g;
 8841: 		if (exists($clicker_ids{$id})) {
 8842: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
 8843: 		} else {
 8844: 		    $clicker_ids{$id}=$puname.':'.$pudom;
 8845: 		}
 8846:             }
 8847:         }
 8848:     }
 8849:     return %clicker_ids;
 8850: }
 8851: 
 8852: sub clicker_grading_parameters {
 8853:     return ('gradingmechanism' => 'scalar',
 8854:             'upfiletype' => 'scalar',
 8855:             'specificid' => 'scalar',
 8856:             'pcorrect' => 'scalar',
 8857:             'pincorrect' => 'scalar');
 8858: }
 8859: 
 8860: sub process_clicker {
 8861:     my ($r)=@_;
 8862:     my ($symb)=&get_symb($r);
 8863:     if (!$symb) {return '';}
 8864:     my $result=&checkforfile_js();
 8865:     $env{'form.probTitle'} = &Apache::lonnet::gettitle($symb);
 8866:     my ($table) = &showResourceInfo($symb,$env{'form.probTitle'});
 8867:     $result.=$table;
 8868:     $result.='<br /><table width="100%" border="0"><tr><td bgcolor="#777777">'."\n";
 8869:     $result.='<table width="100%" border="0"><tr bgcolor="#e6ffff"><td>'."\n";
 8870:     $result.='&nbsp;<b>'.&mt('Specify a file containing the clicker information for this resource.').
 8871:         '</b></td></tr>'."\n";
 8872:     $result.='<tr bgcolor=#ffffe6><td>'."\n";
 8873: # Attempt to restore parameters from last session, set defaults if not present
 8874:     my %Saveable_Parameters=&clicker_grading_parameters();
 8875:     &Apache::loncommon::restore_course_settings('grades_clicker',
 8876:                                                  \%Saveable_Parameters);
 8877:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
 8878:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
 8879:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
 8880:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
 8881: 
 8882:     my %checked;
 8883:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
 8884:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
 8885:           $checked{$gradingmechanism}=' checked="checked"';
 8886:        }
 8887:     }
 8888: 
 8889:     my $upload=&mt("Upload File");
 8890:     my $type=&mt("Type");
 8891:     my $attendance=&mt("Award points just for participation");
 8892:     my $personnel=&mt("Correctness determined from response by course personnel");
 8893:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
 8894:     my $given=&mt("Correctness determined from given list of answers").' '.
 8895:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
 8896:     my $pcorrect=&mt("Percentage points for correct solution");
 8897:     my $pincorrect=&mt("Percentage points for incorrect solution");
 8898:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
 8899: 						   ('iclicker' => 'i>clicker',
 8900:                                                     'interwrite' => 'interwrite PRS'));
 8901:     $symb = &Apache::lonenc::check_encrypt($symb);
 8902:     $result.=<<ENDUPFORM;
 8903: <script type="text/javascript">
 8904: function sanitycheck() {
 8905: // Accept only integer percentages
 8906:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
 8907:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
 8908: // Find out grading choice
 8909:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 8910:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
 8911:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
 8912:       }
 8913:    }
 8914: // By default, new choice equals user selection
 8915:    newgradingchoice=gradingchoice;
 8916: // Not good to give more points for false answers than correct ones
 8917:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
 8918:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
 8919:    }
 8920: // If new choice is attendance only, and old choice was correctness-based, restore defaults
 8921:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
 8922:       document.forms.gradesupload.pcorrect.value=100;
 8923:       document.forms.gradesupload.pincorrect.value=100;
 8924:    }
 8925: // If the values are different, cannot be attendance only
 8926:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
 8927:        (gradingchoice=='attendance')) {
 8928:        newgradingchoice='personnel';
 8929:    }
 8930: // Change grading choice to new one
 8931:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 8932:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
 8933:          document.forms.gradesupload.gradingmechanism[i].checked=true;
 8934:       } else {
 8935:          document.forms.gradesupload.gradingmechanism[i].checked=false;
 8936:       }
 8937:    }
 8938: // Remember the old state
 8939:    document.forms.gradesupload.waschecked.value=newgradingchoice;
 8940: }
 8941: </script>
 8942: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 8943: <input type="hidden" name="symb" value="$symb" />
 8944: <input type="hidden" name="command" value="processclickerfile" />
 8945: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 8946: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 8947: <input type="file" name="upfile" size="50" />
 8948: <br /><label>$type: $selectform</label>
 8949: <br /><label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
 8950: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
 8951: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
 8952: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
 8953: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
 8954: <br />&nbsp;&nbsp;&nbsp;
 8955: <input type="text" name="givenanswer" size="50" />
 8956: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
 8957: <br /><label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
 8958: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
 8959: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 8960: </form>
 8961: ENDUPFORM
 8962:     $result.='</td></tr></table>'."\n".
 8963:              '</td></tr></table><br /><br />'."\n";
 8964:     $result.=&show_grading_menu_form($symb);
 8965:     return $result;
 8966: }
 8967: 
 8968: sub process_clicker_file {
 8969:     my ($r)=@_;
 8970:     my ($symb)=&get_symb($r);
 8971:     if (!$symb) {return '';}
 8972: 
 8973:     my %Saveable_Parameters=&clicker_grading_parameters();
 8974:     &Apache::loncommon::store_course_settings('grades_clicker',
 8975:                                               \%Saveable_Parameters);
 8976: 
 8977:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 8978:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
 8979: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
 8980: 	return $result.&show_grading_menu_form($symb);
 8981:     }
 8982:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
 8983:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
 8984:         return $result.&show_grading_menu_form($symb);
 8985:     }
 8986:     my $foundgiven=0;
 8987:     if ($env{'form.gradingmechanism'} eq 'given') {
 8988:         $env{'form.givenanswer'}=~s/^\s*//gs;
 8989:         $env{'form.givenanswer'}=~s/\s*$//gs;
 8990:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-]+/\,/g;
 8991:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
 8992:         my @answers=split(/\,/,$env{'form.givenanswer'});
 8993:         $foundgiven=$#answers+1;
 8994:     }
 8995:     my %clicker_ids=&gather_clicker_ids();
 8996:     my %correct_ids;
 8997:     if ($env{'form.gradingmechanism'} eq 'personnel') {
 8998: 	%correct_ids=&gather_adv_clicker_ids();
 8999:     }
 9000:     if ($env{'form.gradingmechanism'} eq 'specific') {
 9001: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
 9002: 	   $correct_id=~tr/a-z/A-Z/;
 9003: 	   $correct_id=~s/\s//gs;
 9004: 	   $correct_id=~s/^[\#0]+//;
 9005:            $correct_id=~s/[\-\:]//g;
 9006:            if ($correct_id) {
 9007: 	      $correct_ids{$correct_id}='specified';
 9008:            }
 9009:         }
 9010:     }
 9011:     if ($env{'form.gradingmechanism'} eq 'attendance') {
 9012: 	$result.=&mt('Score based on attendance only');
 9013:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
 9014:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
 9015:     } else {
 9016: 	my $number=0;
 9017: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
 9018: 	foreach my $id (sort(keys(%correct_ids))) {
 9019: 	    $result.='<br /><tt>'.$id.'</tt> - ';
 9020: 	    if ($correct_ids{$id} eq 'specified') {
 9021: 		$result.=&mt('specified');
 9022: 	    } else {
 9023: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
 9024: 		$result.=&Apache::loncommon::plainname($uname,$udom);
 9025: 	    }
 9026: 	    $number++;
 9027: 	}
 9028:         $result.="</p>\n";
 9029: 	if ($number==0) {
 9030: 	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
 9031: 	    return $result.&show_grading_menu_form($symb);
 9032: 	}
 9033:     }
 9034:     if (length($env{'form.upfile'}) < 2) {
 9035:         $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
 9036: 		     '<span class="LC_error">',
 9037: 		     '</span>',
 9038: 		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
 9039:         return $result.&show_grading_menu_form($symb);
 9040:     }
 9041: 
 9042: # Were able to get all the info needed, now analyze the file
 9043: 
 9044:     $result.=&Apache::loncommon::studentbrowser_javascript();
 9045:     $symb = &Apache::lonenc::check_encrypt($symb);
 9046:     my $heading=&mt('Scanning clicker file');
 9047:     $result.=(<<ENDHEADER);
 9048: <br /><table width="100%" border="0"><tr><td bgcolor="#777777">
 9049: <table width="100%" border="0"><tr bgcolor="#e6ffff"><td>
 9050: <b>$heading</b></td></tr><tr bgcolor=#ffffe6><td>
 9051: <form method="post" action="/adm/grades" name="clickeranalysis">
 9052: <input type="hidden" name="symb" value="$symb" />
 9053: <input type="hidden" name="command" value="assignclickergrades" />
 9054: <input type="hidden" name="probTitle" value="$env{'form.probTitle'}" />
 9055: <input type="hidden" name="saveState"  value="$env{'form.saveState'}" />
 9056: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
 9057: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
 9058: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
 9059: ENDHEADER
 9060:     if ($env{'form.gradingmechanism'} eq 'given') {
 9061:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
 9062:     } 
 9063:     my %responses;
 9064:     my @questiontitles;
 9065:     my $errormsg='';
 9066:     my $number=0;
 9067:     if ($env{'form.upfiletype'} eq 'iclicker') {
 9068: 	($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
 9069:     }
 9070:     if ($env{'form.upfiletype'} eq 'interwrite') {
 9071:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
 9072:     }
 9073:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
 9074:              '<input type="hidden" name="number" value="'.$number.'" />'.
 9075:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
 9076:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
 9077:              '<br />';
 9078:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
 9079:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
 9080:        return $result.&show_grading_menu_form($symb);
 9081:     } 
 9082: # Remember Question Titles
 9083: # FIXME: Possibly need delimiter other than ":"
 9084:     for (my $i=0;$i<$number;$i++) {
 9085:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
 9086:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
 9087:     }
 9088:     my $correct_count=0;
 9089:     my $student_count=0;
 9090:     my $unknown_count=0;
 9091: # Match answers with usernames
 9092: # FIXME: Possibly need delimiter other than ":"
 9093:     foreach my $id (keys(%responses)) {
 9094:        if ($correct_ids{$id}) {
 9095:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
 9096:           $correct_count++;
 9097:        } elsif ($clicker_ids{$id}) {
 9098:           if ($clicker_ids{$id}=~/\,/) {
 9099: # More than one user with the same clicker!
 9100:              $result.="\n<hr />".&mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
 9101:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9102:                            "<select name='multi".$id."'>";
 9103:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
 9104:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
 9105:              }
 9106:              $result.='</select>';
 9107:              $unknown_count++;
 9108:           } else {
 9109: # Good: found one and only one user with the right clicker
 9110:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
 9111:              $student_count++;
 9112:           }
 9113:        } else {
 9114:           $result.="\n<hr />".&mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
 9115:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9116:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
 9117:                    "\n".&mt("Domain").": ".
 9118:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
 9119:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id);
 9120:           $unknown_count++;
 9121:        }
 9122:     }
 9123:     $result.='<hr />'.
 9124:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
 9125:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
 9126:        if ($correct_count==0) {
 9127:           $errormsg.="Found no correct answers answers for grading!";
 9128:        } elsif ($correct_count>1) {
 9129:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
 9130:        }
 9131:     }
 9132:     if ($number<1) {
 9133:        $errormsg.="Found no questions.";
 9134:     }
 9135:     if ($errormsg) {
 9136:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
 9137:     } else {
 9138:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
 9139:     }
 9140:     $result.='</form></td></tr></table>'."\n".
 9141:              '</td></tr></table><br /><br />'."\n";
 9142:     return $result.&show_grading_menu_form($symb);
 9143: }
 9144: 
 9145: sub iclicker_eval {
 9146:     my ($questiontitles,$responses)=@_;
 9147:     my $number=0;
 9148:     my $errormsg='';
 9149:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9150:         my %components=&Apache::loncommon::record_sep($line);
 9151:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9152: 	if ($entries[0] eq 'Question') {
 9153: 	    for (my $i=3;$i<$#entries;$i+=6) {
 9154: 		$$questiontitles[$number]=$entries[$i];
 9155: 		$number++;
 9156: 	    }
 9157: 	}
 9158: 	if ($entries[0]=~/^\#/) {
 9159: 	    my $id=$entries[0];
 9160: 	    my @idresponses;
 9161: 	    $id=~s/^[\#0]+//;
 9162: 	    for (my $i=0;$i<$number;$i++) {
 9163: 		my $idx=3+$i*6;
 9164: 		push(@idresponses,$entries[$idx]);
 9165: 	    }
 9166: 	    $$responses{$id}=join(',',@idresponses);
 9167: 	}
 9168:     }
 9169:     return ($errormsg,$number);
 9170: }
 9171: 
 9172: sub interwrite_eval {
 9173:     my ($questiontitles,$responses)=@_;
 9174:     my $number=0;
 9175:     my $errormsg='';
 9176:     my $skipline=1;
 9177:     my $questionnumber=0;
 9178:     my %idresponses=();
 9179:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9180:         my %components=&Apache::loncommon::record_sep($line);
 9181:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9182:         if ($entries[1] eq 'Time') { $skipline=0; next; }
 9183:         if ($entries[1] eq 'Response') { $skipline=1; }
 9184:         next if $skipline;
 9185:         if ($entries[0]!=$questionnumber) {
 9186:            $questionnumber=$entries[0];
 9187:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
 9188:            $number++;
 9189:         }
 9190:         my $id=$entries[4];
 9191:         $id=~s/^[\#0]+//;
 9192:         $id=~s/^v\d*\://i;
 9193:         $id=~s/[\-\:]//g;
 9194:         $idresponses{$id}[$number]=$entries[6];
 9195:     }
 9196:     foreach my $id (keys(%idresponses)) {
 9197:        $$responses{$id}=join(',',@{$idresponses{$id}});
 9198:        $$responses{$id}=~s/^\s*\,//;
 9199:     }
 9200:     return ($errormsg,$number);
 9201: }
 9202: 
 9203: sub assign_clicker_grades {
 9204:     my ($r)=@_;
 9205:     my ($symb)=&get_symb($r);
 9206:     if (!$symb) {return '';}
 9207: # See which part we are saving to
 9208:     my $res_error;
 9209:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 9210:     if ($res_error) {
 9211:         return &navmap_errormsg();
 9212:     }
 9213: # FIXME: This should probably look for the first handgradeable part
 9214:     my $part=$$partlist[0];
 9215: # Start screen output
 9216:     my ($result) = &showResourceInfo($symb,$env{'form.probTitle'});
 9217: 
 9218:     my $heading=&mt('Assigning grades based on clicker file');
 9219:     $result.=(<<ENDHEADER);
 9220: <br /><table width="100%" border="0"><tr><td bgcolor="#777777">
 9221: <table width="100%" border="0"><tr bgcolor="#e6ffff"><td>
 9222: <b>$heading</b></td></tr><tr bgcolor=#ffffe6><td>
 9223: ENDHEADER
 9224: # Get correct result
 9225: # FIXME: Possibly need delimiter other than ":"
 9226:     my @correct=();
 9227:     my $gradingmechanism=$env{'form.gradingmechanism'};
 9228:     my $number=$env{'form.number'};
 9229:     if ($gradingmechanism ne 'attendance') {
 9230:        foreach my $key (keys(%env)) {
 9231:           if ($key=~/^form\.correct\:/) {
 9232:              my @input=split(/\,/,$env{$key});
 9233:              for (my $i=0;$i<=$#input;$i++) {
 9234:                  if (($correct[$i]) && ($input[$i]) &&
 9235:                      ($correct[$i] ne $input[$i])) {
 9236:                     $result.='<br /><span class="LC_warning">'.
 9237:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
 9238:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
 9239:                  } elsif ($input[$i]) {
 9240:                     $correct[$i]=$input[$i];
 9241:                  }
 9242:              }
 9243:           }
 9244:        }
 9245:        for (my $i=0;$i<$number;$i++) {
 9246:           if (!$correct[$i]) {
 9247:              $result.='<br /><span class="LC_error">'.
 9248:                       &mt('No correct result given for question "[_1]"!',
 9249:                           $env{'form.question:'.$i}).'</span>';
 9250:           }
 9251:        }
 9252:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ($_?$_:'-') } @correct));
 9253:     }
 9254: # Start grading
 9255:     my $pcorrect=$env{'form.pcorrect'};
 9256:     my $pincorrect=$env{'form.pincorrect'};
 9257:     my $storecount=0;
 9258:     foreach my $key (keys(%env)) {
 9259:        my $user='';
 9260:        if ($key=~/^form\.student\:(.*)$/) {
 9261:           $user=$1;
 9262:        }
 9263:        if ($key=~/^form\.unknown\:(.*)$/) {
 9264:           my $id=$1;
 9265:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
 9266:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
 9267:           } elsif ($env{'form.multi'.$id}) {
 9268:              $user=$env{'form.multi'.$id};
 9269:           }
 9270:        }
 9271:        if ($user) { 
 9272:           my @answer=split(/\,/,$env{$key});
 9273:           my $sum=0;
 9274:           my $realnumber=$number;
 9275:           for (my $i=0;$i<$number;$i++) {
 9276:              if  ($correct[$i] eq '-') {
 9277:                 $realnumber--;
 9278:              } elsif ($answer[$i]) {
 9279:                 if ($gradingmechanism eq 'attendance') {
 9280:                    $sum+=$pcorrect;
 9281:                 } elsif ($correct[$i] eq '*') {
 9282:                    $sum+=$pcorrect;
 9283:                 } else {
 9284:                    if ($answer[$i] eq $correct[$i]) {
 9285:                       $sum+=$pcorrect;
 9286:                    } else {
 9287:                       $sum+=$pincorrect;
 9288:                    }
 9289:                 }
 9290:              }
 9291:           }
 9292:           my $ave=$sum/(100*$realnumber);
 9293: # Store
 9294:           my ($username,$domain)=split(/\:/,$user);
 9295:           my %grades=();
 9296:           $grades{"resource.$part.solved"}='correct_by_override';
 9297:           $grades{"resource.$part.awarded"}=$ave;
 9298:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 9299:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
 9300:                                                  $env{'request.course.id'},
 9301:                                                  $domain,$username);
 9302:           if ($returncode ne 'ok') {
 9303:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
 9304:           } else {
 9305:              $storecount++;
 9306:           }
 9307:        }
 9308:     }
 9309: # We are done
 9310:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
 9311:              '</td></tr></table>'."\n".
 9312:              '</td></tr></table><br /><br />'."\n";
 9313:     return $result.&show_grading_menu_form($symb);
 9314: }
 9315: 
 9316: sub navmap_errormsg {
 9317:     return '<div class="LC_error">'.
 9318:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
 9319:            &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>').
 9320:            '</div>';
 9321: }
 9322: 
 9323: sub handler {
 9324:     my $request=$_[0];
 9325:     &reset_caches();
 9326:     if ($env{'browser.mathml'}) {
 9327: 	&Apache::loncommon::content_type($request,'text/xml');
 9328:     } else {
 9329: 	&Apache::loncommon::content_type($request,'text/html');
 9330:     }
 9331:     $request->send_http_header;
 9332:     return '' if $request->header_only;
 9333:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
 9334:     my $symb=&get_symb($request,1);
 9335:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
 9336:     my $command=$commands[0];
 9337: 
 9338:     if ($#commands > 0) {
 9339: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
 9340:     }
 9341: 
 9342:     $ssi_error = 0;
 9343:     my $brcrum = [{href=>"/adm/grades",text=>"Grading"}];
 9344:     $request->print(&Apache::loncommon::start_page('Grading',undef,
 9345:                                           {'bread_crumbs' => $brcrum}));
 9346:     if ($symb eq '' && $command eq '') {
 9347: 	if ($env{'user.adv'}) {
 9348: 	    if (($env{'form.codeone'}) && ($env{'form.codetwo'}) &&
 9349: 		($env{'form.codethree'})) {
 9350: 		my $token=$env{'form.codeone'}.'*'.$env{'form.codetwo'}.'*'.
 9351: 		    $env{'form.codethree'};
 9352: 		my ($tsymb,$tuname,$tudom,$tcrsid)=
 9353: 		    &Apache::lonnet::checkin($token);
 9354: 		if ($tsymb) {
 9355: 		    my ($map,$id,$url)=&Apache::lonnet::decode_symb($tsymb);
 9356: 		    if (&Apache::lonnet::allowed('mgr',$tcrsid)) {
 9357: 			$request->print(&ssi_with_retries('/res/'.$url, $ssi_retries,
 9358: 					  ('grade_username' => $tuname,
 9359: 					   'grade_domain' => $tudom,
 9360: 					   'grade_courseid' => $tcrsid,
 9361: 					   'grade_symb' => $tsymb)));
 9362: 		    } else {
 9363: 			$request->print('<h3>Not authorized: '.$token.'</h3>');
 9364: 		    }
 9365: 		} else {
 9366: 		    $request->print('<h3>Not a valid DocID: '.$token.'</h3>');
 9367: 		}
 9368: 	    } else {
 9369: 		$request->print(&Apache::lonxml::tokeninputfield());
 9370: 	    }
 9371: 	}
 9372:     } else {
 9373: 	&init_perm();
 9374: 	if ($command eq 'submission' && $perm{'vgr'}) {
 9375: 	    ($env{'form.student'} eq '' ? &listStudents($request) : &submission($request,0,0));
 9376: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
 9377: 	    &pickStudentPage($request);
 9378: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
 9379: 	    &displayPage($request);
 9380: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
 9381: 	    &updateGradeByPage($request);
 9382: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
 9383: 	    &processGroup($request);
 9384: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
 9385: 	    $request->print(&grading_menu($request));
 9386: 	} elsif ($command eq 'submit_options' && $perm{'vgr'}) {
 9387: 	    $request->print(&submit_options($request));
 9388: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
 9389: 	    $request->print(&viewgrades($request));
 9390: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
 9391: 	    $request->print(&processHandGrade($request));
 9392: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
 9393: 	    $request->print(&editgrades($request));
 9394: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
 9395: 	    $request->print(&verifyreceipt($request));
 9396:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
 9397:             $request->print(&process_clicker($request));
 9398:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
 9399:             $request->print(&process_clicker_file($request));
 9400:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
 9401:             $request->print(&assign_clicker_grades($request));
 9402: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
 9403: 	    $request->print(&upcsvScores_form($request));
 9404: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
 9405: 	    $request->print(&csvupload($request));
 9406: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
 9407: 	    $request->print(&csvuploadmap($request));
 9408: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
 9409: 	    if ($env{'form.associate'} ne 'Reverse Association') {
 9410: 		$request->print(&csvuploadoptions($request));
 9411: 	    } else {
 9412: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
 9413: 		    $env{'form.upfile_associate'} = 'reverse';
 9414: 		} else {
 9415: 		    $env{'form.upfile_associate'} = 'forward';
 9416: 		}
 9417: 		$request->print(&csvuploadmap($request));
 9418: 	    }
 9419: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
 9420: 	    $request->print(&csvuploadassign($request));
 9421: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
 9422: 	    $request->print(&scantron_selectphase($request));
 9423:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
 9424:  	    $request->print(&scantron_do_warning($request));
 9425: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
 9426: 	    $request->print(&scantron_validate_file($request));
 9427: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
 9428: 	    $request->print(&scantron_process_students($request));
 9429:  	} elsif ($command eq 'scantronupload' && 
 9430:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
 9431: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
 9432:  	    $request->print(&scantron_upload_scantron_data($request)); 
 9433:  	} elsif ($command eq 'scantronupload_save' &&
 9434:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
 9435: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
 9436:  	    $request->print(&scantron_upload_scantron_data_save($request));
 9437:  	} elsif ($command eq 'scantron_download' &&
 9438: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 9439:  	    $request->print(&scantron_download_scantron_data($request));
 9440:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
 9441:             $request->print(&checkscantron_results($request));     
 9442: 	} elsif ($command) {
 9443: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
 9444: 	}
 9445:     }
 9446:     if ($ssi_error) {
 9447: 	&ssi_print_error($request);
 9448:     }
 9449:     $request->print(&Apache::loncommon::end_page());
 9450:     &reset_caches();
 9451:     return '';
 9452: }
 9453: 
 9454: 1;
 9455: 
 9456: __END__;
 9457: 
 9458: 
 9459: =head1 NAME
 9460: 
 9461: Apache::grades
 9462: 
 9463: =head1 SYNOPSIS
 9464: 
 9465: Handles the viewing of grades.
 9466: 
 9467: This is part of the LearningOnline Network with CAPA project
 9468: described at http://www.lon-capa.org.
 9469: 
 9470: =head1 OVERVIEW
 9471: 
 9472: Do an ssi with retries:
 9473: While I'd love to factor out this with the vesrion in lonprintout,
 9474: 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
 9475: I'm not quite ready to invent (e.g. an ssi_with_retry object).
 9476: 
 9477: At least the logic that drives this has been pulled out into loncommon.
 9478: 
 9479: 
 9480: 
 9481: ssi_with_retries - Does the server side include of a resource.
 9482:                      if the ssi call returns an error we'll retry it up to
 9483:                      the number of times requested by the caller.
 9484:                      If we still have a proble, no text is appended to the
 9485:                      output and we set some global variables.
 9486:                      to indicate to the caller an SSI error occurred.  
 9487:                      All of this is supposed to deal with the issues described
 9488:                      in LonCAPA BZ 5631 see:
 9489:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
 9490:                      by informing the user that this happened.
 9491: 
 9492: Parameters:
 9493:   resource   - The resource to include.  This is passed directly, without
 9494:                interpretation to lonnet::ssi.
 9495:   form       - The form hash parameters that guide the interpretation of the resource
 9496:                
 9497:   retries    - Number of retries allowed before giving up completely.
 9498: Returns:
 9499:   On success, returns the rendered resource identified by the resource parameter.
 9500: Side Effects:
 9501:   The following global variables can be set:
 9502:    ssi_error                - If an unrecoverable error occurred this becomes true.
 9503:                               It is up to the caller to initialize this to false
 9504:                               if desired.
 9505:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
 9506:                               of the resource that could not be rendered by the ssi
 9507:                               call.
 9508:    ssi_error_message   - The error string fetched from the ssi response
 9509:                               in the event of an error.
 9510: 
 9511: 
 9512: =head1 HANDLER SUBROUTINE
 9513: 
 9514: ssi_with_retries()
 9515: 
 9516: =head1 SUBROUTINES
 9517: 
 9518: =over
 9519: 
 9520: =item scantron_get_correction() : 
 9521: 
 9522:    Builds the interface screen to interact with the operator to fix a
 9523:    specific error condition in a specific scanline
 9524: 
 9525:  Arguments:
 9526:     $r           - Apache request object
 9527:     $i           - number of the current scanline
 9528:     $scan_record - hash ref as returned from &scantron_parse_scanline()
 9529:     $scan_config - hash ref as returned from &get_scantron_config()
 9530:     $line        - full contents of the current scanline
 9531:     $error       - error condition, valid values are
 9532:                    'incorrectCODE', 'duplicateCODE',
 9533:                    'doublebubble', 'missingbubble',
 9534:                    'duplicateID', 'incorrectID'
 9535:     $arg         - extra information needed
 9536:        For errors:
 9537:          - duplicateID   - paper number that this studentID was seen before on
 9538:          - duplicateCODE - array ref of the paper numbers this CODE was
 9539:                            seen on before
 9540:          - incorrectCODE - current incorrect CODE 
 9541:          - doublebubble  - array ref of the bubble lines that have double
 9542:                            bubble errors
 9543:          - missingbubble - array ref of the bubble lines that have missing
 9544:                            bubble errors
 9545: 
 9546: =item  scantron_get_maxbubble() : 
 9547: 
 9548:    Arguments:
 9549:        $nav_error  - Reference to scalar which is a flag to indicate a
 9550:                       failure to retrieve a navmap object.
 9551:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
 9552:        calling routine should trap the error condition and display the warning
 9553:        found in &navmap_errormsg().
 9554: 
 9555:    Returns the maximum number of bubble lines that are expected to
 9556:    occur. Does this by walking the selected sequence rendering the
 9557:    resource and then checking &Apache::lonxml::get_problem_counter()
 9558:    for what the current value of the problem counter is.
 9559: 
 9560:    Caches the results to $env{'form.scantron_maxbubble'},
 9561:    $env{'form.scantron.bubble_lines.n'}, 
 9562:    $env{'form.scantron.first_bubble_line.n'} and
 9563:    $env{"form.scantron.sub_bubblelines.n"}
 9564:    which are the total number of bubble, lines, the number of bubble
 9565:    lines for response n and number of the first bubble line for response n,
 9566:    and a comma separated list of numbers of bubble lines for sub-questions
 9567:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
 9568: 
 9569: 
 9570: =item  scantron_validate_missingbubbles() : 
 9571: 
 9572:    Validates all scanlines in the selected file to not have any
 9573:     answers that don't have bubbles that have not been verified
 9574:     to be bubble free.
 9575: 
 9576: =item  scantron_process_students() : 
 9577: 
 9578:    Routine that does the actual grading of the bubble sheet information.
 9579: 
 9580:    The parsed scanline hash is added to %env 
 9581: 
 9582:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
 9583:    foreach resource , with the form data of
 9584: 
 9585: 	'submitted'     =>'scantron' 
 9586: 	'grade_target'  =>'grade',
 9587: 	'grade_username'=> username of student
 9588: 	'grade_domain'  => domain of student
 9589: 	'grade_courseid'=> of course
 9590: 	'grade_symb'    => symb of resource to grade
 9591: 
 9592:     This triggers a grading pass. The problem grading code takes care
 9593:     of converting the bubbled letter information (now in %env) into a
 9594:     valid submission.
 9595: 
 9596: =item  scantron_upload_scantron_data() :
 9597: 
 9598:     Creates the screen for adding a new bubble sheet data file to a course.
 9599: 
 9600: =item  scantron_upload_scantron_data_save() : 
 9601: 
 9602:    Adds a provided bubble information data file to the course if user
 9603:    has the correct privileges to do so. 
 9604: 
 9605: =item  valid_file() :
 9606: 
 9607:    Validates that the requested bubble data file exists in the course.
 9608: 
 9609: =item  scantron_download_scantron_data() : 
 9610: 
 9611:    Shows a list of the three internal files (original, corrected,
 9612:    skipped) for a specific bubble sheet data file that exists in the
 9613:    course.
 9614: 
 9615: =item  scantron_validate_ID() : 
 9616: 
 9617:    Validates all scanlines in the selected file to not have any
 9618:    invalid or underspecified student/employee IDs
 9619: 
 9620: =item navmap_errormsg() :
 9621: 
 9622:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
 9623:    Should be called whenever the request to instantiate a navmap object fails.  
 9624: 
 9625: =back
 9626: 
 9627: =cut

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