File:  [LON-CAPA] / loncom / homework / grades.pm
Revision 1.702: download - view: text, annotated - select for diffs
Thu Aug 15 14:10:09 2013 UTC (10 years, 8 months ago) by kruse
Branches: MAIN
CVS tags: HEAD
Added box with links to by students submitted files for all four options in  Hand-Grading-Screen.
Direct file access used to be possible under the option "Last Submission" only.

    1: # The LearningOnline Network with CAPA
    2: # The LON-CAPA Grading handler
    3: #
    4: # $Id: grades.pm,v 1.702 2013/08/15 14:10:09 kruse Exp $
    5: #
    6: # Copyright Michigan State University Board of Trustees
    7: #
    8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
    9: #
   10: # LON-CAPA is free software; you can redistribute it and/or modify
   11: # it under the terms of the GNU General Public License as published by
   12: # the Free Software Foundation; either version 2 of the License, or
   13: # (at your option) any later version.
   14: #
   15: # LON-CAPA is distributed in the hope that it will be useful,
   16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
   17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   18: # GNU General Public License for more details.
   19: #
   20: # You should have received a copy of the GNU General Public License
   21: # along with LON-CAPA; if not, write to the Free Software
   22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   23: #
   24: # /home/httpd/html/adm/gpl.txt
   25: #
   26: # http://www.lon-capa.org/
   27: #
   28: 
   29: 
   30: 
   31: package Apache::grades;
   32: use strict;
   33: use Apache::style;
   34: use Apache::lonxml;
   35: use Apache::lonnet;
   36: use Apache::loncommon;
   37: use Apache::lonhtmlcommon;
   38: use Apache::lonnavmaps;
   39: use Apache::lonhomework;
   40: use Apache::lonpickcode;
   41: use Apache::loncoursedata;
   42: use Apache::lonmsg();
   43: use Apache::Constants qw(:common :http);
   44: use Apache::lonlocal;
   45: use Apache::lonenc;
   46: use Apache::lonstathelpers;
   47: use Apache::lonquickgrades;
   48: use Apache::bridgetask();
   49: use String::Similarity;
   50: use LONCAPA;
   51: 
   52: use POSIX qw(floor);
   53: 
   54: 
   55: 
   56: my %perm=();
   57: my %old_essays=();
   58: 
   59: #  These variables are used to recover from ssi errors
   60: 
   61: my $ssi_retries = 5;
   62: my $ssi_error;
   63: my $ssi_error_resource;
   64: my $ssi_error_message;
   65: 
   66: 
   67: sub ssi_with_retries {
   68:     my ($resource, $retries, %form) = @_;
   69:     my ($content, $response) = &Apache::loncommon::ssi_with_retries($resource, $retries, %form);
   70:     if ($response->is_error) {
   71: 	$ssi_error          = 1;
   72: 	$ssi_error_resource = $resource;
   73: 	$ssi_error_message  = $response->code . " " . $response->message;
   74:     }
   75: 
   76:     return $content;
   77: 
   78: }
   79: #
   80: #  Prodcuces an ssi retry failure error message to the user:
   81: #
   82: 
   83: sub ssi_print_error {
   84:     my ($r) = @_;
   85:     my $helpurl = &Apache::loncommon::top_nav_help('Helpdesk');
   86:     $r->print('
   87: <br />
   88: <h2>'.&mt('An unrecoverable network error occurred:').'</h2>
   89: <p>
   90: '.&mt('Unable to retrieve a resource from a server:').'<br />
   91: '.&mt('Resource:').' '.$ssi_error_resource.'<br />
   92: '.&mt('Error:').' '.$ssi_error_message.'
   93: </p>
   94: <p>'.
   95: &mt('It is recommended that you try again later, as this error may mean the server was just temporarily unavailable, or is down for maintenance.').'<br />'.
   96: &mt('If the error persists, please contact the [_1] for assistance.',$helpurl).
   97: '</p>');
   98:     return;
   99: }
  100: 
  101: #
  102: # --- Retrieve the parts from the metadata file.---
  103: # Returns an array of everything that the resources stores away
  104: #
  105: 
  106: sub getpartlist {
  107:     my ($symb,$errorref) = @_;
  108: 
  109:     my $navmap   = Apache::lonnavmaps::navmap->new();
  110:     unless (ref($navmap)) {
  111:         if (ref($errorref)) { 
  112:             $$errorref = 'navmap';
  113:             return;
  114:         }
  115:     }
  116:     my $res      = $navmap->getBySymb($symb);
  117:     my $partlist = $res->parts();
  118:     my $url      = $res->src();
  119:     my @metakeys = split(/,/,&Apache::lonnet::metadata($url,'keys'));
  120: 
  121:     my @stores;
  122:     foreach my $part (@{ $partlist }) {
  123: 	foreach my $key (@metakeys) {
  124: 	    if ($key =~ m/^stores_\Q$part\E_/) { push(@stores,$key); }
  125: 	}
  126:     }
  127:     return @stores;
  128: }
  129: 
  130: #--- Format fullname, username:domain if different for display
  131: #--- Use anywhere where the student names are listed
  132: sub nameUserString {
  133:     my ($type,$fullname,$uname,$udom) = @_;
  134:     if ($type eq 'header') {
  135: 	return '<b>&nbsp;'.&mt('Fullname').'&nbsp;</b><span class="LC_internal_info">('.&mt('Username').')</span>';
  136:     } else {
  137: 	return '&nbsp;'.$fullname.'<span class="LC_internal_info">&nbsp;('.$uname.
  138: 	    ($env{'user.domain'} eq $udom ? '' : ' ('.$udom.')').')</span>';
  139:     }
  140: }
  141: 
  142: #--- Get the partlist and the response type for a given problem. ---
  143: #--- Indicate if a response type is coded handgraded or not. ---
  144: #--- Sets response_error pointer to "1" if navmaps object broken ---
  145: sub response_type {
  146:     my ($symb,$response_error) = @_;
  147: 
  148:     my $navmap = Apache::lonnavmaps::navmap->new();
  149:     unless (ref($navmap)) {
  150:         if (ref($response_error)) {
  151:             $$response_error = 1;
  152:         }
  153:         return;
  154:     }
  155:     my $res = $navmap->getBySymb($symb);
  156:     unless (ref($res)) {
  157:         $$response_error = 1;
  158:         return;
  159:     }
  160:     my $partlist = $res->parts();
  161:     my %vPart = 
  162: 	map { $_ => 1 } (&Apache::loncommon::get_env_multiple('form.vPart'));
  163:     my (%response_types,%handgrade);
  164:     foreach my $part (@{ $partlist }) {
  165: 	next if (%vPart && !exists($vPart{$part}));
  166: 
  167: 	my @types = $res->responseType($part);
  168: 	my @ids = $res->responseIds($part);
  169: 	for (my $i=0; $i < scalar(@ids); $i++) {
  170: 	    $response_types{$part}{$ids[$i]} = $types[$i];
  171: 	    $handgrade{$part.'_'.$ids[$i]} = 
  172: 		&Apache::lonnet::EXT('resource.'.$part.'_'.$ids[$i].
  173: 				     '.handgrade',$symb);
  174: 	}
  175:     }
  176:     return ($partlist,\%handgrade,\%response_types);
  177: }
  178: 
  179: sub flatten_responseType {
  180:     my ($responseType) = @_;
  181:     my @part_response_id =
  182: 	map { 
  183: 	    my $part = $_;
  184: 	    map {
  185: 		[$part,$_]
  186: 		} sort(keys(%{ $responseType->{$part} }));
  187: 	} sort(keys(%$responseType));
  188:     return @part_response_id;
  189: }
  190: 
  191: sub get_display_part {
  192:     my ($partID,$symb)=@_;
  193:     my $display=&Apache::lonnet::EXT('resource.'.$partID.'.display',$symb);
  194:     if (defined($display) and $display ne '') {
  195:         $display.= ' (<span class="LC_internal_info">'
  196:                   .&mt('Part ID: [_1]',$partID).'</span>)';
  197:     } else {
  198: 	$display=$partID;
  199:     }
  200:     return $display;
  201: }
  202: 
  203: sub reset_caches {
  204:     &reset_analyze_cache();
  205:     &reset_perm();
  206:     &reset_old_essays();
  207: }
  208: 
  209: {
  210:     my %analyze_cache;
  211:     my %analyze_cache_formkeys;
  212: 
  213:     sub reset_analyze_cache {
  214: 	undef(%analyze_cache);
  215:         undef(%analyze_cache_formkeys);
  216:     }
  217: 
  218:     sub get_analyze {
  219: 	my ($symb,$uname,$udom,$no_increment,$add_to_hash,$type,$trial,$rndseed,$bubbles_per_row)=@_;
  220: 	my $key = "$symb\0$uname\0$udom";
  221:         if ($type eq 'randomizetry') {
  222:             if ($trial ne '') {
  223:                 $key .= "\0".$trial;
  224:             }
  225:         }
  226: 	if (exists($analyze_cache{$key})) {
  227:             my $getupdate = 0;
  228:             if (ref($add_to_hash) eq 'HASH') {
  229:                 foreach my $item (keys(%{$add_to_hash})) {
  230:                     if (ref($analyze_cache_formkeys{$key}) eq 'HASH') {
  231:                         if (!exists($analyze_cache_formkeys{$key}{$item})) {
  232:                             $getupdate = 1;
  233:                             last;
  234:                         }
  235:                     } else {
  236:                         $getupdate = 1;
  237:                     }
  238:                 }
  239:             }
  240:             if (!$getupdate) {
  241:                 return $analyze_cache{$key};
  242:             }
  243:         }
  244: 
  245: 	my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
  246: 	$url=&Apache::lonnet::clutter($url);
  247:         my %form = ('grade_target'      => 'analyze',
  248:                     'grade_domain'      => $udom,
  249:                     'grade_symb'        => $symb,
  250:                     'grade_courseid'    =>  $env{'request.course.id'},
  251:                     'grade_username'    => $uname,
  252:                     'grade_noincrement' => $no_increment);
  253:         if ($bubbles_per_row ne '') {
  254:             $form{'bubbles_per_row'} = $bubbles_per_row;
  255:         }
  256:         if ($type eq 'randomizetry') {
  257:             $form{'grade_questiontype'} = $type;
  258:             if ($rndseed ne '') {
  259:                 $form{'grade_rndseed'} = $rndseed;
  260:             }
  261:         }
  262:         if (ref($add_to_hash)) {
  263:             %form = (%form,%{$add_to_hash});
  264:         }
  265: 	my $subresult=&ssi_with_retries($url, $ssi_retries,%form);
  266: 	(undef,$subresult)=split(/_HASH_REF__/,$subresult,2);
  267: 	my %analyze=&Apache::lonnet::str2hash($subresult);
  268:         if (ref($add_to_hash) eq 'HASH') {
  269:             $analyze_cache_formkeys{$key} = $add_to_hash;
  270:         } else {
  271:             $analyze_cache_formkeys{$key} = {};
  272:         }
  273: 	return $analyze_cache{$key} = \%analyze;
  274:     }
  275: 
  276:     sub get_order {
  277: 	my ($partid,$respid,$symb,$uname,$udom,$no_increment,$type,$trial,$rndseed)=@_;
  278: 	my $analyze = &get_analyze($symb,$uname,$udom,$no_increment,undef,$type,$trial,$rndseed);
  279: 	return $analyze->{"$partid.$respid.shown"};
  280:     }
  281: 
  282:     sub get_radiobutton_correct_foil {
  283: 	my ($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed)=@_;
  284: 	my $analyze = &get_analyze($symb,$uname,$udom,undef,undef,$type,$trial,$rndseed);
  285:         my $foils = &get_order($partid,$respid,$symb,$uname,$udom,undef,$type,$trial,$rndseed);
  286:         if (ref($foils) eq 'ARRAY') {
  287: 	    foreach my $foil (@{$foils}) {
  288: 	        if ($analyze->{"$partid.$respid.foil.value.$foil"} eq 'true') {
  289: 		    return $foil;
  290: 	        }
  291: 	    }
  292: 	}
  293:     }
  294: 
  295:     sub scantron_partids_tograde {
  296:         my ($resource,$cid,$uname,$udom,$check_for_randomlist,$bubbles_per_row) = @_;
  297:         my (%analysis,@parts);
  298:         if (ref($resource)) {
  299:             my $symb = $resource->symb();
  300:             my $add_to_form;
  301:             if ($check_for_randomlist) {
  302:                 $add_to_form = { 'check_parts_withrandomlist' => 1,};
  303:             }
  304:             my $analyze = 
  305:                 &get_analyze($symb,$uname,$udom,undef,$add_to_form,
  306:                              undef,undef,undef,$bubbles_per_row);
  307:             if (ref($analyze) eq 'HASH') {
  308:                 %analysis = %{$analyze};
  309:             }
  310:             if (ref($analysis{'parts'}) eq 'ARRAY') {
  311:                 foreach my $part (@{$analysis{'parts'}}) {
  312:                     my ($id,$respid) = split(/\./,$part);
  313:                     if (!&Apache::loncommon::check_if_partid_hidden($id,$symb,$udom,$uname)) {
  314:                         push(@parts,$part);
  315:                     }
  316:                 }
  317:             }
  318:         }
  319:         return (\%analysis,\@parts);
  320:     }
  321: 
  322: }
  323: 
  324: #--- Clean response type for display
  325: #--- Currently filters option/rank/radiobutton/match/essay/Task
  326: #        response types only.
  327: sub cleanRecord {
  328:     my ($answer,$response,$symb,$partid,$respid,$record,$order,$version,
  329: 	$uname,$udom,$type,$trial,$rndseed) = @_;
  330:     my $grayFont = '<span class="LC_internal_info">';
  331:     if ($response =~ /^(option|rank)$/) {
  332: 	my %answer=&Apache::lonnet::str2hash($answer);
  333: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  334: 	my ($toprow,$bottomrow);
  335: 	foreach my $foil (@$order) {
  336: 	    if ($grading{$foil} == 1) {
  337: 		$toprow.='<td><b>'.$answer{$foil}.'&nbsp;</b></td>';
  338: 	    } else {
  339: 		$toprow.='<td><i>'.$answer{$foil}.'&nbsp;</i></td>';
  340: 	    }
  341: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  342: 	}
  343: 	return '<blockquote><table border="1">'.
  344: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  345: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  346: 	    $bottomrow.'</tr></table></blockquote>';
  347:     } elsif ($response eq 'match') {
  348: 	my %answer=&Apache::lonnet::str2hash($answer);
  349: 	my %grading=&Apache::lonnet::str2hash($record->{$version."resource.$partid.$respid.submissiongrading"});
  350: 	my @items=&Apache::lonnet::str2array($record->{$version."resource.$partid.$respid.submissionitems"});
  351: 	my ($toprow,$middlerow,$bottomrow);
  352: 	foreach my $foil (@$order) {
  353: 	    my $item=shift(@items);
  354: 	    if ($grading{$foil} == 1) {
  355: 		$toprow.='<td><b>'.$item.'&nbsp;</b></td>';
  356: 		$middlerow.='<td><b>'.$grayFont.$answer{$foil}.'&nbsp;</span></b></td>';
  357: 	    } else {
  358: 		$toprow.='<td><i>'.$item.'&nbsp;</i></td>';
  359: 		$middlerow.='<td><i>'.$grayFont.$answer{$foil}.'&nbsp;</span></i></td>';
  360: 	    }
  361: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  362: 	}
  363: 	return '<blockquote><table border="1">'.
  364: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  365: 	    '<tr valign="top"><td>'.$grayFont.&mt('Item ID').'</span></td>'.
  366: 	    $middlerow.'</tr>'.
  367: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  368: 	    $bottomrow.'</tr></table></blockquote>';
  369:     } elsif ($response eq 'radiobutton') {
  370: 	my %answer=&Apache::lonnet::str2hash($answer);
  371: 	my ($toprow,$bottomrow);
  372: 	my $correct = 
  373: 	    &get_radiobutton_correct_foil($partid,$respid,$symb,$uname,$udom,$type,$trial,$rndseed);
  374: 	foreach my $foil (@$order) {
  375: 	    if (exists($answer{$foil})) {
  376: 		if ($foil eq $correct) {
  377: 		    $toprow.='<td><b>'.&mt('true').'</b></td>';
  378: 		} else {
  379: 		    $toprow.='<td><i>'.&mt('true').'</i></td>';
  380: 		}
  381: 	    } else {
  382: 		$toprow.='<td>'.&mt('false').'</td>';
  383: 	    }
  384: 	    $bottomrow.='<td>'.$grayFont.$foil.'</span>&nbsp;</td>';
  385: 	}
  386: 	return '<blockquote><table border="1">'.
  387: 	    '<tr valign="top"><td>'.&mt('Answer').'</td>'.$toprow.'</tr>'.
  388: 	    '<tr valign="top"><td>'.$grayFont.&mt('Option ID').'</span></td>'.
  389: 	    $bottomrow.'</tr></table></blockquote>';
  390:     } elsif ($response eq 'essay') {
  391: 	if (! exists ($env{'form.'.$symb})) {
  392: 	    my (%keyhash) = &Apache::lonnet::dump('nohist_handgrade',
  393: 						  $env{'course.'.$env{'request.course.id'}.'.domain'},
  394: 						  $env{'course.'.$env{'request.course.id'}.'.num'});
  395: 
  396: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
  397: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
  398: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
  399: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
  400: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
  401: 	    $env{'form.'.$symb} = 1; # so that we don't have to read it from disk for multiple sub of the same prob.
  402: 	}
  403: 	$answer =~ s-\n-<br />-g;
  404: 	return '<br /><br /><blockquote><tt>'.&keywords_highlight($answer).'</tt></blockquote>';
  405:     } elsif ( $response eq 'organic') {
  406: 	my $result='Smile representation: "<tt>'.$answer.'</tt>"';
  407: 	my $jme=$record->{$version."resource.$partid.$respid.molecule"};
  408: 	$result.=&Apache::chemresponse::jme_img($jme,$answer,400);
  409: 	return $result;
  410:     } elsif ( $response eq 'Task') {
  411: 	if ( $answer eq 'SUBMITTED') {
  412: 	    my $files = $record->{$version."resource.$respid.$partid.bridgetask.portfiles"};
  413: 	    my $result = &Apache::bridgetask::file_list($files,$uname,$udom);
  414: 	    return $result;
  415: 	} elsif ( grep(/^\Q$version\E.*?\.instance$/, keys(%{$record})) ) {
  416: 	    my @matches = grep(/^\Q$version\E.*?\.instance$/,
  417: 			       keys(%{$record}));
  418: 	    return join('<br />',($version,@matches));
  419: 			       
  420: 			       
  421: 	} else {
  422: 	    my $result =
  423: 		'<p>'
  424: 		.&mt('Overall result: [_1]',
  425: 		     $record->{$version."resource.$respid.$partid.status"})
  426: 		.'</p>';
  427: 	    
  428: 	    $result .= '<ul>';
  429: 	    my @grade = grep(/^\Q${version}resource.$respid.$partid.\E[^.]*[.]status$/,
  430: 			     keys(%{$record}));
  431: 	    foreach my $grade (sort(@grade)) {
  432: 		my ($dim) = ($grade =~/[.]([^.]+)[.]status$/);
  433: 		$result.= '<li>'.&mt("Dimension: [_1], status [_2] ",
  434: 				     $dim, $record->{$grade}).
  435: 			  '</li>';
  436: 	    }
  437: 	    $result.='</ul>';
  438: 	    return $result;
  439: 	}
  440:     } elsif ( $response =~ m/(?:numerical|formula)/) {
  441: 	$answer = 
  442: 	    &Apache::loncommon::format_previous_attempt_value('submission',
  443: 							      $answer);
  444:     }
  445:     return $answer;
  446: }
  447: 
  448: #-- A couple of common js functions
  449: sub commonJSfunctions {
  450:     my $request = shift;
  451:     $request->print(&Apache::lonhtmlcommon::scripttag(<<COMMONJSFUNCTIONS));
  452:     function radioSelection(radioButton) {
  453: 	var selection=null;
  454: 	if (radioButton.length > 1) {
  455: 	    for (var i=0; i<radioButton.length; i++) {
  456: 		if (radioButton[i].checked) {
  457: 		    return radioButton[i].value;
  458: 		}
  459: 	    }
  460: 	} else {
  461: 	    if (radioButton.checked) return radioButton.value;
  462: 	}
  463: 	return selection;
  464:     }
  465: 
  466:     function pullDownSelection(selectOne) {
  467: 	var selection="";
  468: 	if (selectOne.length > 1) {
  469: 	    for (var i=0; i<selectOne.length; i++) {
  470: 		if (selectOne[i].selected) {
  471: 		    return selectOne[i].value;
  472: 		}
  473: 	    }
  474: 	} else {
  475:             // only one value it must be the selected one
  476: 	    return selectOne.value;
  477: 	}
  478:     }
  479: COMMONJSFUNCTIONS
  480: }
  481: 
  482: #--- Dumps the class list with usernames,list of sections,
  483: #--- section, ids and fullnames for each user.
  484: sub getclasslist {
  485:     my ($getsec,$filterlist,$getgroup) = @_;
  486:     my @getsec;
  487:     my @getgroup;
  488:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  489:     if (!ref($getsec)) {
  490: 	if ($getsec ne '' && $getsec ne 'all') {
  491: 	    @getsec=($getsec);
  492: 	}
  493:     } else {
  494: 	@getsec=@{$getsec};
  495:     }
  496:     if (grep(/^all$/,@getsec)) { undef(@getsec); }
  497:     if (!ref($getgroup)) {
  498: 	if ($getgroup ne '' && $getgroup ne 'all') {
  499: 	    @getgroup=($getgroup);
  500: 	}
  501:     } else {
  502: 	@getgroup=@{$getgroup};
  503:     }
  504:     if (grep(/^all$/,@getgroup)) { undef(@getgroup); }
  505: 
  506:     my ($classlist,$keylist)=&Apache::loncoursedata::get_classlist();
  507:     # Bail out if we were unable to get the classlist
  508:     return if (! defined($classlist));
  509:     &Apache::loncoursedata::get_group_memberships($classlist,$keylist);
  510:     #
  511:     my %sections;
  512:     my %fullnames;
  513:     foreach my $student (keys(%$classlist)) {
  514:         my $end      = 
  515:             $classlist->{$student}->[&Apache::loncoursedata::CL_END()];
  516:         my $start    = 
  517:             $classlist->{$student}->[&Apache::loncoursedata::CL_START()];
  518:         my $id       = 
  519:             $classlist->{$student}->[&Apache::loncoursedata::CL_ID()];
  520:         my $section  = 
  521:             $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
  522:         my $fullname = 
  523:             $classlist->{$student}->[&Apache::loncoursedata::CL_FULLNAME()];
  524:         my $status   = 
  525:             $classlist->{$student}->[&Apache::loncoursedata::CL_STATUS()];
  526:         my $group   = 
  527:             $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
  528: 	# filter students according to status selected
  529: 	if ($filterlist && (!($stu_status =~ /Any/))) {
  530: 	    if (!($stu_status =~ $status)) {
  531: 		delete($classlist->{$student});
  532: 		next;
  533: 	    }
  534: 	}
  535: 	# filter students according to groups selected
  536: 	my @stu_groups = split(/,/,$group);
  537: 	if (@getgroup) {
  538: 	    my $exclude = 1;
  539: 	    foreach my $grp (@getgroup) {
  540: 	        foreach my $stu_group (@stu_groups) {
  541: 	            if ($stu_group eq $grp) {
  542: 	                $exclude = 0;
  543:     	            } 
  544: 	        }
  545:     	        if (($grp eq 'none') && !$group) {
  546:         	        $exclude = 0;
  547:         	}
  548: 	    }
  549: 	    if ($exclude) {
  550: 	        delete($classlist->{$student});
  551: 	    }
  552: 	}
  553: 	$section = ($section ne '' ? $section : 'none');
  554: 	if (&canview($section)) {
  555: 	    if (!@getsec || grep(/^\Q$section\E$/,@getsec)) {
  556: 		$sections{$section}++;
  557: 		if ($classlist->{$student}) {
  558: 		    $fullnames{$student}=$fullname;
  559: 		}
  560: 	    } else {
  561: 		delete($classlist->{$student});
  562: 	    }
  563: 	} else {
  564: 	    delete($classlist->{$student});
  565: 	}
  566:     }
  567:     my %seen = ();
  568:     my @sections = sort(keys(%sections));
  569:     return ($classlist,\@sections,\%fullnames);
  570: }
  571: 
  572: sub canmodify {
  573:     my ($sec)=@_;
  574:     if ($perm{'mgr'}) {
  575: 	if (!defined($perm{'mgr_section'})) {
  576: 	    # can modify whole class
  577: 	    return 1;
  578: 	} else {
  579: 	    if ($sec eq $perm{'mgr_section'}) {
  580: 		#can modify the requested section
  581: 		return 1;
  582: 	    } else {
  583: 		# can't modify the request section
  584: 		return 0;
  585: 	    }
  586: 	}
  587:     }
  588:     #can't modify
  589:     return 0;
  590: }
  591: 
  592: sub canview {
  593:     my ($sec)=@_;
  594:     if ($perm{'vgr'}) {
  595: 	if (!defined($perm{'vgr_section'})) {
  596: 	    # can modify whole class
  597: 	    return 1;
  598: 	} else {
  599: 	    if ($sec eq $perm{'vgr_section'}) {
  600: 		#can modify the requested section
  601: 		return 1;
  602: 	    } else {
  603: 		# can't modify the request section
  604: 		return 0;
  605: 	    }
  606: 	}
  607:     }
  608:     #can't modify
  609:     return 0;
  610: }
  611: 
  612: #--- Retrieve the grade status of a student for all the parts
  613: sub student_gradeStatus {
  614:     my ($symb,$udom,$uname,$partlist) = @_;
  615:     my %record     = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
  616:     my %partstatus = ();
  617:     foreach (@$partlist) {
  618: 	my ($status,undef)   = split(/_/,$record{"resource.$_.solved"},2);
  619: 	$status              = 'nothing' if ($status eq '');
  620: 	$partstatus{$_}      = $status;
  621: 	my $subkey           = "resource.$_.submitted_by";
  622: 	$partstatus{$subkey} = $record{$subkey} if ($record{$subkey} ne '');
  623:     }
  624:     return %partstatus;
  625: }
  626: 
  627: # hidden form and javascript that calls the form
  628: # Use by verifyscript and viewgrades
  629: # Shows a student's view of problem and submission
  630: sub jscriptNform {
  631:     my ($symb) = @_;
  632:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  633:     my $jscript= &Apache::lonhtmlcommon::scripttag(
  634: 	'    function viewOneStudent(user,domain) {'."\n".
  635: 	'	document.onestudent.student.value = user;'."\n".
  636: 	'	document.onestudent.userdom.value = domain;'."\n".
  637: 	'	document.onestudent.submit();'."\n".
  638: 	'    }'."\n".
  639: 	"\n");
  640:     $jscript.= '<form action="/adm/grades" method="post" name="onestudent">'."\n".
  641: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  642: 	'<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
  643: 	'<input type="hidden" name="command" value="submission" />'."\n".
  644: 	'<input type="hidden" name="student" value="" />'."\n".
  645: 	'<input type="hidden" name="userdom" value="" />'."\n".
  646: 	'</form>'."\n";
  647:     return $jscript;
  648: }
  649: 
  650: 
  651: 
  652: # Given the score (as a number [0-1] and the weight) what is the final
  653: # point value? This function will round to the nearest tenth, third,
  654: # or quarter if one of those is within the tolerance of .00001.
  655: sub compute_points {
  656:     my ($score, $weight) = @_;
  657:     
  658:     my $tolerance = .00001;
  659:     my $points = $score * $weight;
  660: 
  661:     # Check for nearness to 1/x.
  662:     my $check_for_nearness = sub {
  663:         my ($factor) = @_;
  664:         my $num = ($points * $factor) + $tolerance;
  665:         my $floored_num = floor($num);
  666:         if ($num - $floored_num < 2 * $tolerance * $factor) {
  667:             return $floored_num / $factor;
  668:         }
  669:         return $points;
  670:     };
  671: 
  672:     $points = $check_for_nearness->(10);
  673:     $points = $check_for_nearness->(3);
  674:     $points = $check_for_nearness->(4);
  675:     
  676:     return $points;
  677: }
  678: 
  679: #------------------ End of general use routines --------------------
  680: 
  681: #
  682: # Find most similar essay
  683: #
  684: 
  685: sub most_similar {
  686:     my ($uname,$udom,$symb,$uessay)=@_;
  687: 
  688:     unless ($symb) { return ''; }
  689: 
  690:     unless (ref($old_essays{$symb}) eq 'HASH') { return ''; }
  691: 
  692: # ignore spaces and punctuation
  693: 
  694:     $uessay=~s/\W+/ /gs;
  695: 
  696: # ignore empty submissions (occuring when only files are sent)
  697: 
  698:     unless ($uessay=~/\w+/s) { return ''; }
  699: 
  700: # these will be returned. Do not care if not at least 50 percent similar
  701:     my $limit=0.6;
  702:     my $sname='';
  703:     my $sdom='';
  704:     my $scrsid='';
  705:     my $sessay='';
  706: # go through all essays ...
  707:     foreach my $tkey (keys(%{$old_essays{$symb}})) {
  708: 	my ($tname,$tdom,$tcrsid)=map {&unescape($_)} (split(/\./,$tkey));
  709: # ... except the same student
  710:         next if (($tname eq $uname) && ($tdom eq $udom));
  711: 	my $tessay=$old_essays{$symb}{$tkey};
  712: 	$tessay=~s/\W+/ /gs;
  713: # String similarity gives up if not even limit
  714: 	my $tsimilar=&String::Similarity::similarity($uessay,$tessay,$limit);
  715: # Found one
  716: 	if ($tsimilar>$limit) {
  717: 	    $limit=$tsimilar;
  718: 	    $sname=$tname;
  719: 	    $sdom=$tdom;
  720: 	    $scrsid=$tcrsid;
  721: 	    $sessay=$old_essays{$symb}{$tkey};
  722: 	}
  723:     }
  724:     if ($limit>0.6) {
  725:        return ($sname,$sdom,$scrsid,$sessay,$limit);
  726:     } else {
  727:        return ('','','','',0);
  728:     }
  729: }
  730: 
  731: #-------------------------------------------------------------------
  732: 
  733: #------------------------------------ Receipt Verification Routines
  734: #
  735: 
  736: sub initialverifyreceipt {
  737:    my ($request,$symb) = @_;
  738:    &commonJSfunctions($request);
  739:    return '<form name="gradingMenu" action=""><input type="submit" value="'.&mt('Verify Receipt Number.').'" />'.
  740:         &Apache::lonnet::recprefix($env{'request.course.id'}).
  741:         '-<input type="text" name="receipt" size="4" />'.
  742:         '<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  743:         '<input type="hidden" name="command" value="verify" />'.
  744:         "</form>\n";
  745: }
  746: 
  747: #--- Check whether a receipt number is valid.---
  748: sub verifyreceipt {
  749:     my ($request,$symb)  = @_;
  750: 
  751:     my $courseid = $env{'request.course.id'};
  752:     my $receipt  = &Apache::lonnet::recprefix($courseid).'-'.
  753: 	$env{'form.receipt'};
  754:     $receipt     =~ s/[^\-\d]//g;
  755: 
  756:     my $title.=
  757: 	'<h3><span class="LC_info">'.
  758: 	&mt('Verifying Receipt Number [_1]',$receipt).
  759: 	'</span></h3>'."\n";
  760: 
  761:     my ($string,$contents,$matches) = ('','',0);
  762:     my (undef,undef,$fullname) = &getclasslist('all','0');
  763:     
  764:     my $receiptparts=0;
  765:     if ($env{"course.$courseid.receiptalg"} eq 'receipt2' ||
  766: 	$env{"course.$courseid.receiptalg"} eq 'receipt3') { $receiptparts=1; }
  767:     my $parts=['0'];
  768:     if ($receiptparts) {
  769:         my $res_error; 
  770:         ($parts)=&response_type($symb,\$res_error);
  771:         if ($res_error) {
  772:             return &navmap_errormsg();
  773:         } 
  774:     }
  775:     
  776:     my $header = 
  777: 	&Apache::loncommon::start_data_table().
  778: 	&Apache::loncommon::start_data_table_header_row().
  779: 	'<th>&nbsp;'.&mt('Fullname').'&nbsp;</th>'."\n".
  780: 	'<th>&nbsp;'.&mt('Username').'&nbsp;</th>'."\n".
  781: 	'<th>&nbsp;'.&mt('Domain').'&nbsp;</th>';
  782:     if ($receiptparts) {
  783: 	$header.='<th>&nbsp;'.&mt('Problem Part').'&nbsp;</th>';
  784:     }
  785:     $header.=
  786: 	&Apache::loncommon::end_data_table_header_row();
  787: 
  788:     foreach (sort 
  789: 	     {
  790: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  791: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  792: 		 }
  793: 		 return $a cmp $b;
  794: 	     } (keys(%$fullname))) {
  795: 	my ($uname,$udom)=split(/\:/);
  796: 	foreach my $part (@$parts) {
  797: 	    if ($receipt eq &Apache::lonnet::ireceipt($uname,$udom,$courseid,$symb,$part)) {
  798: 		$contents.=
  799: 		    &Apache::loncommon::start_data_table_row().
  800: 		    '<td>&nbsp;'."\n".
  801: 		    '<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
  802: 		    '\');" target="_self">'.$$fullname{$_}.'</a>&nbsp;</td>'."\n".
  803: 		    '<td>&nbsp;'.$uname.'&nbsp;</td>'.
  804: 		    '<td>&nbsp;'.$udom.'&nbsp;</td>';
  805: 		if ($receiptparts) {
  806: 		    $contents.='<td>&nbsp;'.$part.'&nbsp;</td>';
  807: 		}
  808: 		$contents.= 
  809: 		    &Apache::loncommon::end_data_table_row()."\n";
  810: 		
  811: 		$matches++;
  812: 	    }
  813: 	}
  814:     }
  815:     if ($matches == 0) {
  816:         $string = $title
  817:                  .'<p class="LC_warning">'
  818:                  .&mt('No match found for the above receipt number.')
  819:                  .'</p>';
  820:     } else {
  821: 	$string = &jscriptNform($symb).$title.
  822: 	    '<p>'.
  823: 	    &mt('The above receipt number matches the following [quant,_1,student].',$matches).
  824: 	    '</p>'.
  825: 	    $header.
  826: 	    $contents.
  827: 	    &Apache::loncommon::end_data_table()."\n";
  828:     }
  829:     return $string;
  830: }
  831: 
  832: #--- This is called by a number of programs.
  833: #--- Called from the Grading Menu - View/Grade an individual student
  834: #--- Also called directly when one clicks on the subm button 
  835: #    on the problem page.
  836: sub listStudents {
  837:     my ($request,$symb,$submitonly) = @_;
  838: 
  839:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
  840:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
  841:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
  842:     my $getgroup  = $env{'form.group'} eq '' ? 'all' : $env{'form.group'};
  843:     unless ($submitonly) {
  844:        $submitonly= $env{'form.submitonly'} eq '' ? 'all' : $env{'form.submitonly'};
  845:     }
  846: 
  847:     my $result='';
  848:     my $res_error;
  849:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
  850: 
  851:     my %lt = &Apache::lonlocal::texthash (
  852: 		'multiple' => 'Please select a student or group of students before clicking on the Next button.',
  853: 		'single'   => 'Please select the student before clicking on the Next button.',
  854: 	     );
  855:     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
  856:     function checkSelect(checkBox) {
  857: 	var ctr=0;
  858: 	var sense="";
  859: 	if (checkBox.length > 1) {
  860: 	    for (var i=0; i<checkBox.length; i++) {
  861: 		if (checkBox[i].checked) {
  862: 		    ctr++;
  863: 		}
  864: 	    }
  865: 	    sense = '$lt{'multiple'}';
  866: 	} else {
  867: 	    if (checkBox.checked) {
  868: 		ctr = 1;
  869: 	    }
  870: 	    sense = '$lt{'single'}';
  871: 	}
  872: 	if (ctr == 0) {
  873: 	    alert(sense);
  874: 	    return false;
  875: 	}
  876: 	document.gradesub.submit();
  877:     }
  878: 
  879:     function reLoadList(formname) {
  880: 	if (formname.saveStatusOld.value == pullDownSelection(formname.Status)) {return;}
  881: 	formname.command.value = 'submission';
  882: 	formname.submit();
  883:     }
  884: LISTJAVASCRIPT
  885: 
  886:     &commonJSfunctions($request);
  887:     $request->print($result);
  888: 
  889:     my $gradeTable='<form action="/adm/grades" method="post" name="gradesub">'.
  890: 	"\n";
  891: 	
  892:     $gradeTable .= &Apache::lonhtmlcommon::start_pick_box();
  893:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
  894:                   .'<label><input type="radio" name="vProb" value="no" checked="checked" /> '.&mt('no').' </label>'."\n"
  895:                   .'<label><input type="radio" name="vProb" value="yes" /> '.&mt('one student').' </label>'."\n"
  896:                   .'<label><input type="radio" name="vProb" value="all" /> '.&mt('all students').' </label><br />'."\n"
  897:                   .&Apache::lonhtmlcommon::row_closure();
  898:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Answer'))
  899:                   .'<label><input type="radio" name="vAns" value="no"  /> '.&mt('no').' </label>'."\n"
  900:                   .'<label><input type="radio" name="vAns" value="yes" /> '.&mt('one student').' </label>'."\n"
  901:                   .'<label><input type="radio" name="vAns" value="all" checked="checked" /> '.&mt('all students').' </label><br />'."\n"
  902:                   .&Apache::lonhtmlcommon::row_closure();
  903: 
  904:     my $submission_options;
  905:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
  906:     my $saveStatus = $stu_status eq '' ? 'Active' : $stu_status;
  907:     $env{'form.Status'} = $saveStatus;
  908:     $submission_options.=
  909:         '<span class="LC_nobreak">'.
  910:         '<label><input type="radio" name="lastSub" value="lastonly" /> '.
  911:         &mt('last submission').' </label></span>'."\n".
  912:         '<span class="LC_nobreak">'.
  913:         '<label><input type="radio" name="lastSub" value="last" /> '.
  914:         &mt('last submission with details').' </label></span>'."\n".
  915:         '<span class="LC_nobreak">'.
  916:         '<label><input type="radio" name="lastSub" value="datesub" checked="checked" /> '.
  917:         &mt('all submissions').'</label></span>'."\n".
  918:         '<span class="LC_nobreak">'.
  919:         '<label><input type="radio" name="lastSub" value="all" /> '.
  920:         &mt('all submissions with details').'</label></span>';
  921:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('View Submissions'))
  922:                   .$submission_options
  923:                   .&Apache::lonhtmlcommon::row_closure();
  924: 
  925:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Grading Increments'))
  926:                   .'<select name="increment">'
  927:                   .'<option value="1">'.&mt('Whole Points').'</option>'
  928:                   .'<option value=".5">'.&mt('Half Points').'</option>'
  929:                   .'<option value=".25">'.&mt('Quarter Points').'</option>'
  930:                   .'<option value=".1">'.&mt('Tenths of a Point').'</option>'
  931:                   .'</select>'
  932:                   .&Apache::lonhtmlcommon::row_closure();
  933: 
  934:     $gradeTable .= 
  935:         &build_section_inputs().
  936: 	'<input type="hidden" name="submitonly"  value="'.$submitonly.'" />'."\n".
  937: 	'<input type="hidden" name="symb" value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
  938: 	'<input type="hidden" name="saveStatusOld" value="'.$saveStatus.'" />'."\n";
  939: 
  940:     if (exists($env{'form.Status'})) {
  941: 	$gradeTable .= '<input type="hidden" name="Status" value="'.$stu_status.'" />'."\n";
  942:     } else {
  943:         $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Student Status'))
  944:                       .&Apache::lonhtmlcommon::StatusOptions(
  945:                            $saveStatus,undef,1,'javascript:reLoadList(this.form);')
  946:                       .&Apache::lonhtmlcommon::row_closure();
  947:     }
  948: 
  949:     $gradeTable .= &Apache::lonhtmlcommon::row_title(&mt('Check For Plagiarism'))
  950:                   .'<input type="checkbox" name="checkPlag" checked="checked" />'
  951:                   .&Apache::lonhtmlcommon::row_closure(1)
  952:                   .&Apache::lonhtmlcommon::end_pick_box();
  953: 
  954:     $gradeTable .= '<p>'
  955:                   .&mt("To view/grade/regrade a submission or a group of submissions, click on the check box(es) next to the student's name(s). Then click on the Next button.")."\n"
  956:                   .'<input type="hidden" name="command" value="processGroup" />'
  957:                   .'</p>';
  958: 
  959: # checkall buttons
  960:     $gradeTable.=&check_script('gradesub', 'stuinfo');
  961:     $gradeTable.='<input type="button" '."\n".
  962:         'onclick="javascript:checkSelect(this.form.stuinfo);" '."\n".
  963:         'value="'.&mt('Next').' &rarr;" /> <br />'."\n";
  964:     $gradeTable.=&check_buttons();
  965:     my ($classlist, undef, $fullname) = &getclasslist($getsec,'1',$getgroup);
  966:     $gradeTable.= &Apache::loncommon::start_data_table().
  967: 	&Apache::loncommon::start_data_table_header_row();
  968:     my $loop = 0;
  969:     while ($loop < 2) {
  970: 	$gradeTable.='<th>'.&mt('No.').'</th><th>'.&mt('Select').'</th>'.
  971: 	    '<th>'.&nameUserString('header').'&nbsp;'.&mt('Section/Group').'</th>';
  972: 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
  973: 	    foreach my $part (sort(@$partlist)) {
  974: 		my $display_part=
  975: 		    &get_display_part((split(/_/,$part))[0],$symb);
  976: 		$gradeTable.=
  977: 		    '<th>'.&mt('Part: [_1] Status',$display_part).'</th>';
  978: 	    }
  979: 	} elsif ($submitonly eq 'queued') {
  980: 	    $gradeTable.='<th>'.&mt('Queue Status').'&nbsp;</th>';
  981: 	}
  982: 	$loop++;
  983: #	$gradeTable.='<td></td>' if ($loop%2 ==1);
  984:     }
  985:     $gradeTable.=&Apache::loncommon::end_data_table_header_row()."\n";
  986: 
  987:     my $ctr = 0;
  988:     foreach my $student (sort 
  989: 			 {
  990: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
  991: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
  992: 			     }
  993: 			     return $a cmp $b;
  994: 			 }
  995: 			 (keys(%$fullname))) {
  996: 	my ($uname,$udom) = split(/:/,$student);
  997: 
  998: 	my %status = ();
  999: 
 1000: 	if ($submitonly eq 'queued') {
 1001: 	    my %queue_status = 
 1002: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 1003: 							$udom,$uname);
 1004: 	    next if (!defined($queue_status{'gradingqueue'}));
 1005: 	    $status{'gradingqueue'} = $queue_status{'gradingqueue'};
 1006: 	}
 1007: 
 1008: 	if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
 1009: 	    (%status) =&student_gradeStatus($symb,$udom,$uname,$partlist);
 1010: 	    my $submitted = 0;
 1011: 	    my $graded = 0;
 1012: 	    my $incorrect = 0;
 1013: 	    foreach (keys(%status)) {
 1014: 		$submitted = 1 if ($status{$_} ne 'nothing');
 1015: 		$graded = 1 if ($status{$_} =~ /^ungraded/);
 1016: 		$incorrect = 1 if ($status{$_} =~ /^incorrect/);
 1017: 		
 1018: 		my ($foo,$partid,$foo1) = split(/\./,$_);
 1019: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 1020: 		    $submitted = 0;
 1021: 		    my ($part)=split(/\./,$partid);
 1022: 		    $gradeTable.='<input type="hidden" name="'.
 1023: 			$student.':'.$part.':submitted_by" value="'.
 1024: 			$status{'resource.'.$partid.'.submitted_by'}.'" />';
 1025: 		}
 1026: 	    }
 1027: 	    
 1028: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 1029: 				     $submitonly eq 'incorrect' ||
 1030: 				     $submitonly eq 'graded'));
 1031: 	    next if (!$graded && ($submitonly eq 'graded'));
 1032: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 1033: 	}
 1034: 
 1035: 	$ctr++;
 1036: 	my $section = $classlist->{$student}->[&Apache::loncoursedata::CL_SECTION()];
 1037:         my $group = $classlist->{$student}->[&Apache::loncoursedata::CL_GROUP()];
 1038: 	if ( $perm{'vgr'} eq 'F' ) {
 1039: 	    if ($ctr%2 ==1) {
 1040: 		$gradeTable.= &Apache::loncommon::start_data_table_row();
 1041: 	    }
 1042: 	    $gradeTable.='<td align="right">'.$ctr.'&nbsp;</td>'.
 1043:                '<td align="center"><label><input type="checkbox" name="stuinfo" value="'.
 1044:                $student.':'.$$fullname{$student}.':::SECTION'.$section.
 1045: 	       ')&nbsp;" />&nbsp;&nbsp;</label></td>'."\n".'<td>'.
 1046: 	       &nameUserString(undef,$$fullname{$student},$uname,$udom).
 1047: 	       '&nbsp;'.$section.($group ne '' ?'/'.$group:'').'</td>'."\n";
 1048: 
 1049: 	    if ($submitonly ne 'all') {
 1050: 		foreach (sort(keys(%status))) {
 1051: 		    next if ($_ =~ /^resource.*?submitted_by$/);
 1052: 		    $gradeTable.='<td align="center">&nbsp;'.&mt($status{$_}).'&nbsp;</td>'."\n";
 1053: 		}
 1054: 	    }
 1055: #	    $gradeTable.='<td></td>' if ($ctr%2 ==1);
 1056: 	    if ($ctr%2 ==0) {
 1057: 		$gradeTable.=&Apache::loncommon::end_data_table_row()."\n";
 1058: 	    }
 1059: 	}
 1060:     }
 1061:     if ($ctr%2 ==1) {
 1062: 	$gradeTable.='<td>&nbsp;</td><td>&nbsp;</td><td>&nbsp;</td>';
 1063: 	    if (($submitonly ne 'queued') && ($submitonly ne 'all')) {
 1064: 		foreach (@$partlist) {
 1065: 		    $gradeTable.='<td>&nbsp;</td>';
 1066: 		}
 1067: 	    } elsif ($submitonly eq 'queued') {
 1068: 		$gradeTable.='<td>&nbsp;</td>';
 1069: 	    }
 1070: 	$gradeTable.=&Apache::loncommon::end_data_table_row();
 1071:     }
 1072: 
 1073:     $gradeTable.=&Apache::loncommon::end_data_table()."\n".
 1074:         '<input type="button" '.
 1075:         'onclick="javascript:checkSelect(this.form.stuinfo);" '.
 1076:         'value="'.&mt('Next').' &rarr;" /></form>'."\n";
 1077:     if ($ctr == 0) {
 1078: 	my $num_students=(scalar(keys(%$fullname)));
 1079: 	if ($num_students eq 0) {
 1080: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.&mt('There are no students currently enrolled.').'</span>';
 1081: 	} else {
 1082: 	    my $submissions='submissions';
 1083: 	    if ($submitonly eq 'incorrect') { $submissions = 'incorrect submissions'; }
 1084: 	    if ($submitonly eq 'graded'   ) { $submissions = 'ungraded submissions'; }
 1085: 	    if ($submitonly eq 'queued'   ) { $submissions = 'queued submissions'; }
 1086: 	    $gradeTable='<br />&nbsp;<span class="LC_warning">'.
 1087: 		&mt('No '.$submissions.' found for this resource for any students. ([_1] students checked for '.$submissions.')',
 1088: 		    $num_students).
 1089: 		'</span><br />';
 1090: 	}
 1091:     } elsif ($ctr == 1) {
 1092: 	$gradeTable =~ s/type="checkbox"/type="checkbox" checked="checked"/;
 1093:     }
 1094:     $request->print($gradeTable);
 1095:     return '';
 1096: }
 1097: 
 1098: #---- Called from the listStudents routine
 1099: 
 1100: sub check_script {
 1101:     my ($form, $type)=@_;
 1102:     my $chkallscript= &Apache::lonhtmlcommon::scripttag('
 1103:     function checkall() {
 1104:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1105:             ele = document.forms.'.$form.'.elements[i];
 1106:             if (ele.name == "'.$type.'") {
 1107:             document.forms.'.$form.'.elements[i].checked=true;
 1108:                                        }
 1109:         }
 1110:     }
 1111: 
 1112:     function checksec() {
 1113:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1114:             ele = document.forms.'.$form.'.elements[i];
 1115:            string = document.forms.'.$form.'.chksec.value;
 1116:            if
 1117:           (ele.value.indexOf(":::SECTION"+string)>0) {
 1118:               document.forms.'.$form.'.elements[i].checked=true;
 1119:             }
 1120:         }
 1121:     }
 1122: 
 1123: 
 1124:     function uncheckall() {
 1125:         for (i=0; i<document.forms.'.$form.'.elements.length; i++) {
 1126:             ele = document.forms.'.$form.'.elements[i];
 1127:             if (ele.name == "'.$type.'") {
 1128:             document.forms.'.$form.'.elements[i].checked=false;
 1129:                                        }
 1130:         }
 1131:     }
 1132: 
 1133: '."\n");
 1134:     return $chkallscript;
 1135: }
 1136: 
 1137: sub check_buttons {
 1138:     my $buttons.='<input type="button" onclick="checkall()" value="'.&mt('Check All').'" />';
 1139:     $buttons.='<input type="button" onclick="uncheckall()" value="'.&mt('Uncheck All').'" />&nbsp;';
 1140:     $buttons.='<input type="button" onclick="checksec()" value="'.&mt('Check Section/Group').'" />';
 1141:     $buttons.='<input type="text" size="5" name="chksec" />&nbsp;';
 1142:     return $buttons;
 1143: }
 1144: 
 1145: #     Displays the submissions for one student or a group of students
 1146: sub processGroup {
 1147:     my ($request,$symb)  = @_;
 1148:     my $ctr        = 0;
 1149:     my @stuchecked = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1150:     my $total      = scalar(@stuchecked)-1;
 1151: 
 1152:     foreach my $student (@stuchecked) {
 1153: 	my ($uname,$udom,$fullname) = split(/:/,$student);
 1154: 	$env{'form.student'}        = $uname;
 1155: 	$env{'form.userdom'}        = $udom;
 1156: 	$env{'form.fullname'}       = $fullname;
 1157: 	&submission($request,$ctr,$total,$symb);
 1158: 	$ctr++;
 1159:     }
 1160:     return '';
 1161: }
 1162: 
 1163: #------------------------------------------------------------------------------------
 1164: #
 1165: #-------------------------- Next few routines handles grading by student, essentially
 1166: #                           handles essay response type problem/part
 1167: #
 1168: #--- Javascript to handle the submission page functionality ---
 1169: sub sub_page_js {
 1170:     my $request = shift;
 1171: 	    my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 1172:     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
 1173:     function updateRadio(formname,id,weight) {
 1174: 	var gradeBox = formname["GD_BOX"+id];
 1175: 	var radioButton = formname["RADVAL"+id];
 1176: 	var oldpts = formname["oldpts"+id].value;
 1177: 	var pts = checkSolved(formname,id) == 'update' ? gradeBox.value : oldpts;
 1178: 	gradeBox.value = pts;
 1179: 	var resetbox = false;
 1180: 	if (isNaN(pts) || pts < 0) {
 1181: 	    alert("$alertmsg"+pts);
 1182: 	    for (var i=0; i<radioButton.length; i++) {
 1183: 		if (radioButton[i].checked) {
 1184: 		    gradeBox.value = i;
 1185: 		    resetbox = true;
 1186: 		}
 1187: 	    }
 1188: 	    if (!resetbox) {
 1189: 		formtextbox.value = "";
 1190: 	    }
 1191: 	    return;
 1192: 	}
 1193: 
 1194: 	if (pts > weight) {
 1195: 	    var resp = confirm("You entered a value ("+pts+
 1196: 			       ") greater than the weight for the part. Accept?");
 1197: 	    if (resp == false) {
 1198: 		gradeBox.value = oldpts;
 1199: 		return;
 1200: 	    }
 1201: 	}
 1202: 
 1203: 	for (var i=0; i<radioButton.length; i++) {
 1204: 	    radioButton[i].checked=false;
 1205: 	    if (pts == i && pts != "") {
 1206: 		radioButton[i].checked=true;
 1207: 	    }
 1208: 	}
 1209: 	updateSelect(formname,id);
 1210: 	formname["stores"+id].value = "0";
 1211:     }
 1212: 
 1213:     function writeBox(formname,id,pts) {
 1214: 	var gradeBox = formname["GD_BOX"+id];
 1215: 	if (checkSolved(formname,id) == 'update') {
 1216: 	    gradeBox.value = pts;
 1217: 	} else {
 1218: 	    var oldpts = formname["oldpts"+id].value;
 1219: 	    gradeBox.value = oldpts;
 1220: 	    var radioButton = formname["RADVAL"+id];
 1221: 	    for (var i=0; i<radioButton.length; i++) {
 1222: 		radioButton[i].checked=false;
 1223: 		if (i == oldpts) {
 1224: 		    radioButton[i].checked=true;
 1225: 		}
 1226: 	    }
 1227: 	}
 1228: 	formname["stores"+id].value = "0";
 1229: 	updateSelect(formname,id);
 1230: 	return;
 1231:     }
 1232: 
 1233:     function clearRadBox(formname,id) {
 1234: 	if (checkSolved(formname,id) == 'noupdate') {
 1235: 	    updateSelect(formname,id);
 1236: 	    return;
 1237: 	}
 1238: 	gradeSelect = formname["GD_SEL"+id];
 1239: 	for (var i=0; i<gradeSelect.length; i++) {
 1240: 	    if (gradeSelect[i].selected) {
 1241: 		var selectx=i;
 1242: 	    }
 1243: 	}
 1244: 	var stores = formname["stores"+id];
 1245: 	if (selectx == stores.value) { return };
 1246: 	var gradeBox = formname["GD_BOX"+id];
 1247: 	gradeBox.value = "";
 1248: 	var radioButton = formname["RADVAL"+id];
 1249: 	for (var i=0; i<radioButton.length; i++) {
 1250: 	    radioButton[i].checked=false;
 1251: 	}
 1252: 	stores.value = selectx;
 1253:     }
 1254: 
 1255:     function checkSolved(formname,id) {
 1256: 	if (formname["solved"+id].value == "correct_by_student" && formname.overRideScore.value == 'no') {
 1257: 	    var reply = confirm("This problem has been graded correct by the computer. Do you want to change the score?");
 1258: 	    if (!reply) {return "noupdate";}
 1259: 	    formname.overRideScore.value = 'yes';
 1260: 	}
 1261: 	return "update";
 1262:     }
 1263: 
 1264:     function updateSelect(formname,id) {
 1265: 	formname["GD_SEL"+id][0].selected = true;
 1266: 	return;
 1267:     }
 1268: 
 1269: //=========== Check that a point is assigned for all the parts  ============
 1270:     function checksubmit(formname,val,total,parttot) {
 1271: 	formname.gradeOpt.value = val;
 1272: 	if (val == "Save & Next") {
 1273: 	    for (i=0;i<=total;i++) {
 1274: 		for (j=0;j<parttot;j++) {
 1275: 		    var partid = formname["partid"+i+"_"+j].value;
 1276: 		    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1277: 			var points = formname["GD_BOX"+i+"_"+partid].value;
 1278: 			if (points == "") {
 1279: 			    var name = formname["name"+i].value;
 1280: 			    var studentID = (name != '' ? name : formname["unamedom"+i].value);
 1281: 			    var resp = confirm("You did not assign a score for "+studentID+
 1282: 					       ", part "+partid+". Continue?");
 1283: 			    if (resp == false) {
 1284: 				formname["GD_BOX"+i+"_"+partid].focus();
 1285: 				return false;
 1286: 			    }
 1287: 			}
 1288: 		    }
 1289: 		    
 1290: 		}
 1291: 	    }
 1292: 	    
 1293: 	}
 1294: 	formname.submit();
 1295:     }
 1296: 
 1297: //======= Check that a score is assigned for all the problems (page/sequence grading only) =========
 1298:     function checkSubmitPage(formname,total) {
 1299: 	noscore = new Array(100);
 1300: 	var ptr = 0;
 1301: 	for (i=1;i<total;i++) {
 1302: 	    var partid = formname["q_"+i].value;
 1303: 	    if (formname["GD_SEL"+i+"_"+partid][0].selected) {
 1304: 		var points = formname["GD_BOX"+i+"_"+partid].value;
 1305: 		var status = formname["solved"+i+"_"+partid].value;
 1306: 		if (points == "" && status != "correct_by_student") {
 1307: 		    noscore[ptr] = i;
 1308: 		    ptr++;
 1309: 		}
 1310: 	    }
 1311: 	}
 1312: 	if (ptr != 0) {
 1313: 	    var sense = ptr == 1 ? ": " : "s: ";
 1314: 	    var prolist = "";
 1315: 	    if (ptr == 1) {
 1316: 		prolist = noscore[0];
 1317: 	    } else {
 1318: 		var i = 0;
 1319: 		while (i < ptr-1) {
 1320: 		    prolist += noscore[i]+", ";
 1321: 		    i++;
 1322: 		}
 1323: 		prolist += "and "+noscore[i];
 1324: 	    }
 1325: 	    var resp = confirm("You did not assign any score for the following problem"+sense+prolist+". Continue?");
 1326: 	    if (resp == false) {
 1327: 		return false;
 1328: 	    }
 1329: 	}
 1330: 
 1331: 	formname.submit();
 1332:     }
 1333: SUBJAVASCRIPT
 1334: }
 1335: 
 1336: #--- javascript for essay type problem --
 1337: sub sub_page_kw_js {
 1338:     my $request = shift;
 1339:     my $iconpath = $request->dir_config('lonIconsURL');
 1340:     &commonJSfunctions($request);
 1341: 
 1342:     my $inner_js_msg_central= (<<INNERJS);
 1343: <script type="text/javascript">
 1344:     function checkInput() {
 1345:       opener.document.SCORE.msgsub.value = opener.checkEntities(document.msgcenter.msgsub.value);
 1346:       var nmsg   = opener.document.SCORE.savemsgN.value;
 1347:       var usrctr = document.msgcenter.usrctr.value;
 1348:       var newval = opener.document.SCORE["newmsg"+usrctr];
 1349:       newval.value = opener.checkEntities(document.msgcenter.newmsg.value);
 1350: 
 1351:       var msgchk = "";
 1352:       if (document.msgcenter.subchk.checked) {
 1353:          msgchk = "msgsub,";
 1354:       }
 1355:       var includemsg = 0;
 1356:       for (var i=1; i<=nmsg; i++) {
 1357:           var opnmsg = opener.document.SCORE["savemsg"+i];
 1358:           var frmmsg = document.msgcenter["msg"+i];
 1359:           opnmsg.value = opener.checkEntities(frmmsg.value);
 1360:           var showflg = opener.document.SCORE["shownOnce"+i];
 1361:           showflg.value = "1";
 1362:           var chkbox = document.msgcenter["msgn"+i];
 1363:           if (chkbox.checked) {
 1364:              msgchk += "savemsg"+i+",";
 1365:              includemsg = 1;
 1366:           }
 1367:       }
 1368:       if (document.msgcenter.newmsgchk.checked) {
 1369:          msgchk += "newmsg"+usrctr;
 1370:          includemsg = 1;
 1371:       }
 1372:       imgformname = opener.document.SCORE["mailicon"+usrctr];
 1373:       imgformname.src = "$iconpath/"+((includemsg) ? "mailto.gif" : "mailbkgrd.gif");
 1374:       var includemsg = opener.document.SCORE["includemsg"+usrctr];
 1375:       includemsg.value = msgchk;
 1376: 
 1377:       self.close()
 1378: 
 1379:     }
 1380: </script>
 1381: INNERJS
 1382: 
 1383:     my $inner_js_highlight_central= (<<INNERJS);
 1384: <script type="text/javascript">
 1385:     function updateChoice(flag) {
 1386:       opener.document.SCORE.kwclr.value = opener.radioSelection(document.hlCenter.kwdclr);
 1387:       opener.document.SCORE.kwsize.value = opener.radioSelection(document.hlCenter.kwdsize);
 1388:       opener.document.SCORE.kwstyle.value = opener.radioSelection(document.hlCenter.kwdstyle);
 1389:       opener.document.SCORE.refresh.value = "on";
 1390:       if (opener.document.SCORE.keywords.value!=""){
 1391:          opener.document.SCORE.submit();
 1392:       }
 1393:       self.close()
 1394:     }
 1395: </script>
 1396: INNERJS
 1397: 
 1398:     my $start_page_msg_central = 
 1399:         &Apache::loncommon::start_page('Message Central',$inner_js_msg_central,
 1400: 				       {'js_ready'  => 1,
 1401: 					'only_body' => 1,
 1402: 					'bgcolor'   =>'#FFFFFF',});
 1403:     my $end_page_msg_central = 
 1404: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1405: 
 1406: 
 1407:     my $start_page_highlight_central = 
 1408:         &Apache::loncommon::start_page('Highlight Central',
 1409: 				       $inner_js_highlight_central,
 1410: 				       {'js_ready'  => 1,
 1411: 					'only_body' => 1,
 1412: 					'bgcolor'   =>'#FFFFFF',});
 1413:     my $end_page_highlight_central = 
 1414: 	&Apache::loncommon::end_page({'js_ready' => 1});
 1415: 
 1416:     my $docopen=&Apache::lonhtmlcommon::javascript_docopen();
 1417:     $docopen=~s/^document\.//;
 1418:     my %lt = &Apache::lonlocal::texthash(
 1419:                 keyw => 'Keywords list, separated by a space. Add/delete to list if desired.',
 1420:                 plse => 'Please select a word or group of words from document and then click this link.',
 1421:                 adds => 'Add selection to keyword list? Edit if desired.',
 1422:                 comp => 'Compose Message for: ',
 1423:                 incl => 'Include',
 1424:                 type => 'Type',
 1425:                 subj => 'Subject',
 1426:                 mesa => 'Message',
 1427:                 new  => 'New',
 1428:                 save => 'Save',
 1429:                 canc => 'Cancel',
 1430:                 kehi => 'Keyword Highlight Options',
 1431:                 txtc => 'Text Color',
 1432:                 font => 'Font Size',
 1433:                 fnst => 'Font Style',
 1434:              );
 1435:     $request->print(&Apache::lonhtmlcommon::scripttag(<<SUBJAVASCRIPT));
 1436: 
 1437: //===================== Show list of keywords ====================
 1438:   function keywords(formname) {
 1439:     var nret = prompt("$lt{'keyw'}",formname.keywords.value);
 1440:     if (nret==null) return;
 1441:     formname.keywords.value = nret;
 1442: 
 1443:     if (formname.keywords.value != "") {
 1444: 	formname.refresh.value = "on";
 1445: 	formname.submit();
 1446:     }
 1447:     return;
 1448:   }
 1449: 
 1450: //===================== Script to view submitted by ==================
 1451:   function viewSubmitter(submitter) {
 1452:     document.SCORE.refresh.value = "on";
 1453:     document.SCORE.NCT.value = "1";
 1454:     document.SCORE.unamedom0.value = submitter;
 1455:     document.SCORE.submit();
 1456:     return;
 1457:   }
 1458: 
 1459: //===================== Script to add keyword(s) ==================
 1460:   function getSel() {
 1461:     if (document.getSelection) txt = document.getSelection();
 1462:     else if (document.selection) txt = document.selection.createRange().text;
 1463:     else return;
 1464:     var cleantxt = txt.replace(new RegExp('([\\f\\n\\r\\t\\v ])+', 'g')," ");
 1465:     if (cleantxt=="") {
 1466: 	alert("$lt{'plse'}");
 1467: 	return;
 1468:     }
 1469:     var nret = prompt("$lt{'adds'}",cleantxt);
 1470:     if (nret==null) return;
 1471:     document.SCORE.keywords.value = document.SCORE.keywords.value+" "+nret;
 1472:     if (document.SCORE.keywords.value != "") {
 1473: 	document.SCORE.refresh.value = "on";
 1474: 	document.SCORE.submit();
 1475:     }
 1476:     return;
 1477:   }
 1478: 
 1479: //====================== Script for composing message ==============
 1480:    // preload images
 1481:    img1 = new Image();
 1482:    img1.src = "$iconpath/mailbkgrd.gif";
 1483:    img2 = new Image();
 1484:    img2.src = "$iconpath/mailto.gif";
 1485: 
 1486:   function msgCenter(msgform,usrctr,fullname) {
 1487:     var Nmsg  = msgform.savemsgN.value;
 1488:     savedMsgHeader(Nmsg,usrctr,fullname);
 1489:     var subject = msgform.msgsub.value;
 1490:     var msgchk = document.SCORE["includemsg"+usrctr].value;
 1491:     re = /msgsub/;
 1492:     var shwsel = "";
 1493:     if (re.test(msgchk)) { shwsel = "checked" }
 1494:     subject = (document.SCORE.shownSub.value == 0 ? checkEntities(subject) : subject);
 1495:     displaySubject(checkEntities(subject),shwsel);
 1496:     for (var i=1; i<=Nmsg; i++) {
 1497: 	var testmsg = "savemsg"+i+",";
 1498: 	re = new RegExp(testmsg,"g");
 1499: 	shwsel = "";
 1500: 	if (re.test(msgchk)) { shwsel = "checked" }
 1501: 	var message = document.SCORE["savemsg"+i].value;
 1502: 	message = (document.SCORE["shownOnce"+i].value == 0 ? checkEntities(message) : message);
 1503: 	displaySavedMsg(i,message,shwsel); //I do not get it. w/o checkEntities on saved messages,
 1504: 	                                   //any &lt; is already converted to <, etc. However, only once!!
 1505:     }
 1506:     newmsg = document.SCORE["newmsg"+usrctr].value;
 1507:     shwsel = "";
 1508:     re = /newmsg/;
 1509:     if (re.test(msgchk)) { shwsel = "checked" }
 1510:     newMsg(newmsg,shwsel);
 1511:     msgTail(); 
 1512:     return;
 1513:   }
 1514: 
 1515:   function checkEntities(strx) {
 1516:     if (strx.length == 0) return strx;
 1517:     var orgStr = ["&", "<", ">", '"']; 
 1518:     var newStr = ["&amp;", "&lt;", "&gt;", "&quot;"];
 1519:     var counter = 0;
 1520:     while (counter < 4) {
 1521: 	strx = strReplace(strx,orgStr[counter],newStr[counter]);
 1522: 	counter++;
 1523:     }
 1524:     return strx;
 1525:   }
 1526: 
 1527:   function strReplace(strx, orgStr, newStr) {
 1528:     return strx.split(orgStr).join(newStr);
 1529:   }
 1530: 
 1531:   function savedMsgHeader(Nmsg,usrctr,fullname) {
 1532:     var height = 70*Nmsg+250;
 1533:     if (height > 600) {
 1534: 	height = 600;
 1535:     }
 1536:     var xpos = (screen.width-600)/2;
 1537:     xpos = (xpos < 0) ? '0' : xpos;
 1538:     var ypos = (screen.height-height)/2-30;
 1539:     ypos = (ypos < 0) ? '0' : ypos;
 1540: 
 1541:     pWin = window.open('', 'MessageCenter', 'resizable=yes,toolbar=no,location=no,scrollbars=yes,screenx='+xpos+',screeny='+ypos+',width=700,height='+height);
 1542:     pWin.focus();
 1543:     pDoc = pWin.document;
 1544:     pDoc.$docopen;
 1545:     pDoc.write('$start_page_msg_central');
 1546: 
 1547:     pDoc.write("<form action=\\"inactive\\" name=\\"msgcenter\\">");
 1548:     pDoc.write("<input value=\\""+usrctr+"\\" name=\\"usrctr\\" type=\\"hidden\\">");
 1549:     pDoc.write("<h1>&nbsp;$lt{'comp'}\"+fullname+\"<\\/h1>");
 1550: 
 1551:     pDoc.write('<table style="border:1px solid black;"><tr>');
 1552:     pDoc.write("<td><b>$lt{'incl'}<\\/b><\\/td><td><b>$lt{'type'}<\\/b><\\/td><td><b>$lt{'mesa'}<\\/td><\\/tr>");
 1553: }
 1554:     function displaySubject(msg,shwsel) {
 1555:     pDoc = pWin.document;
 1556:     pDoc.write("<tr>");
 1557:     pDoc.write("<td align=\\"center\\"><input name=\\"subchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1558:     pDoc.write("<td>$lt{'subj'}<\\/td>");
 1559:     pDoc.write("<td><input name=\\"msgsub\\" type=\\"text\\" value=\\""+msg+"\\"size=\\"40\\" maxlength=\\"80\\"><\\/td><\\/tr>");
 1560: }
 1561: 
 1562:   function displaySavedMsg(ctr,msg,shwsel) {
 1563:     pDoc = pWin.document;
 1564:     pDoc.write("<tr>");
 1565:     pDoc.write("<td align=\\"center\\"><input name=\\"msgn"+ctr+"\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1566:     pDoc.write("<td align=\\"center\\">"+ctr+"<\\/td>");
 1567:     pDoc.write("<td><textarea name=\\"msg"+ctr+"\\" cols=\\"60\\" rows=\\"3\\">"+msg+"<\\/textarea><\\/td><\\/tr>");
 1568: }
 1569: 
 1570:   function newMsg(newmsg,shwsel) {
 1571:     pDoc = pWin.document;
 1572:     pDoc.write("<tr>");
 1573:     pDoc.write("<td align=\\"center\\"><input name=\\"newmsgchk\\" type=\\"checkbox\\"" +shwsel+"><\\/td>");
 1574:     pDoc.write("<td align=\\"center\\">$lt{'new'}<\\/td>");
 1575:     pDoc.write("<td><textarea name=\\"newmsg\\" cols=\\"60\\" rows=\\"3\\" onchange=\\"javascript:this.form.newmsgchk.checked=true\\" >"+newmsg+"<\\/textarea><\\/td><\\/tr>");
 1576: }
 1577: 
 1578:   function msgTail() {
 1579:     pDoc = pWin.document;
 1580:     //pDoc.write("<\\/table>");
 1581:     pDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1582:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:checkInput()\\">&nbsp;&nbsp;");
 1583:     pDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1584:     pDoc.write("<\\/form>");
 1585:     pDoc.write('$end_page_msg_central');
 1586:     pDoc.close();
 1587: }
 1588: 
 1589: //====================== Script for keyword highlight options ==============
 1590:   function kwhighlight() {
 1591:     var kwclr    = document.SCORE.kwclr.value;
 1592:     var kwsize   = document.SCORE.kwsize.value;
 1593:     var kwstyle  = document.SCORE.kwstyle.value;
 1594:     var redsel = "";
 1595:     var grnsel = "";
 1596:     var blusel = "";
 1597:     if (kwclr=="red")   {var redsel="checked"};
 1598:     if (kwclr=="green") {var grnsel="checked"};
 1599:     if (kwclr=="blue")  {var blusel="checked"};
 1600:     var sznsel = "";
 1601:     var sz1sel = "";
 1602:     var sz2sel = "";
 1603:     if (kwsize=="0")  {var sznsel="checked"};
 1604:     if (kwsize=="+1") {var sz1sel="checked"};
 1605:     if (kwsize=="+2") {var sz2sel="checked"};
 1606:     var synsel = "";
 1607:     var syisel = "";
 1608:     var sybsel = "";
 1609:     if (kwstyle=="")    {var synsel="checked"};
 1610:     if (kwstyle=="<i>") {var syisel="checked"};
 1611:     if (kwstyle=="<b>") {var sybsel="checked"};
 1612:     highlightCentral();
 1613:     highlightbody('red','red',redsel,'0','normal',sznsel,'','normal',synsel);
 1614:     highlightbody('green','green',grnsel,'+1','+1',sz1sel,'<i>','italic',syisel);
 1615:     highlightbody('blue','blue',blusel,'+2','+2',sz2sel,'<b>','bold',sybsel);
 1616:     highlightend();
 1617:     return;
 1618:   }
 1619: 
 1620:   function highlightCentral() {
 1621: //    if (window.hwdWin) window.hwdWin.close();
 1622:     var xpos = (screen.width-400)/2;
 1623:     xpos = (xpos < 0) ? '0' : xpos;
 1624:     var ypos = (screen.height-330)/2-30;
 1625:     ypos = (ypos < 0) ? '0' : ypos;
 1626: 
 1627:     hwdWin = window.open('', 'KeywordHighlightCentral', 'resizeable=yes,toolbar=no,location=no,scrollbars=no,width=400,height=300,screenx='+xpos+',screeny='+ypos);
 1628:     hwdWin.focus();
 1629:     var hDoc = hwdWin.document;
 1630:     hDoc.$docopen;
 1631:     hDoc.write('$start_page_highlight_central');
 1632:     hDoc.write("<form action=\\"inactive\\" name=\\"hlCenter\\">");
 1633:     hDoc.write("<h3><span class=\\"LC_info\\">&nbsp;$lt{'kehi'}<\\/span><\\/h3><br /><br />");
 1634: 
 1635:     hDoc.write('<table border="0" width="100%"><tr><td bgcolor="#777777">');
 1636:     hDoc.write('<table border="0" width="100%"><tr bgcolor="#DDFFFF">');
 1637:     hDoc.write("<td><b>$lt{'txtc'}<\\/b><\\/td><td><b>$lt{'font'}<\\/b><\\/td><td><b>$lt{'fnst'}<\\/td><\\/tr>");
 1638:   }
 1639: 
 1640:   function highlightbody(clrval,clrtxt,clrsel,szval,sztxt,szsel,syval,sytxt,sysel) { 
 1641:     var hDoc = hwdWin.document;
 1642:     hDoc.write("<tr bgcolor=\\"#ffffdd\\">");
 1643:     hDoc.write("<td align=\\"left\\">");
 1644:     hDoc.write("<input name=\\"kwdclr\\" type=\\"radio\\" value=\\""+clrval+"\\" "+clrsel+">&nbsp;"+clrtxt+"<\\/td>");
 1645:     hDoc.write("<td align=\\"left\\">");
 1646:     hDoc.write("<input name=\\"kwdsize\\" type=\\"radio\\" value=\\""+szval+"\\" "+szsel+">&nbsp;"+sztxt+"<\\/td>");
 1647:     hDoc.write("<td align=\\"left\\">");
 1648:     hDoc.write("<input name=\\"kwdstyle\\" type=\\"radio\\" value=\\""+syval+"\\" "+sysel+">&nbsp;"+sytxt+"<\\/td>");
 1649:     hDoc.write("<\\/tr>");
 1650:   }
 1651: 
 1652:   function highlightend() { 
 1653:     var hDoc = hwdWin.document;
 1654:     hDoc.write("<\\/table>");
 1655:     hDoc.write("<\\/td><\\/tr><\\/table>&nbsp;");
 1656:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'save'}\\" onclick=\\"javascript:updateChoice(1)\\">&nbsp;&nbsp;");
 1657:     hDoc.write("<input type=\\"button\\" value=\\"$lt{'canc'}\\" onclick=\\"self.close()\\"><br /><br />");
 1658:     hDoc.write("<\\/form>");
 1659:     hDoc.write('$end_page_highlight_central');
 1660:     hDoc.close();
 1661:   }
 1662: 
 1663: SUBJAVASCRIPT
 1664: }
 1665: 
 1666: sub get_increment {
 1667:     my $increment = $env{'form.increment'};
 1668:     if ($increment != 1 && $increment != .5 && $increment != .25 &&
 1669:         $increment != .1) {
 1670:         $increment = 1;
 1671:     }
 1672:     return $increment;
 1673: }
 1674: 
 1675: sub gradeBox_start {
 1676:     return (
 1677:         &Apache::loncommon::start_data_table()
 1678:        .&Apache::loncommon::start_data_table_header_row()
 1679:        .'<th>'.&mt('Part').'</th>'
 1680:        .'<th>'.&mt('Points').'</th>'
 1681:        .'<th>&nbsp;</th>'
 1682:        .'<th>'.&mt('Assign Grade').'</th>'
 1683:        .'<th>'.&mt('Weight').'</th>'
 1684:        .'<th>'.&mt('Grade Status').'</th>'
 1685:        .&Apache::loncommon::end_data_table_header_row()
 1686:     );
 1687: }
 1688: 
 1689: sub gradeBox_end {
 1690:     return (
 1691:         &Apache::loncommon::end_data_table()
 1692:     );
 1693: }
 1694: #--- displays the grading box, used in essay type problem and grading by page/sequence
 1695: sub gradeBox {
 1696:     my ($request,$symb,$uname,$udom,$counter,$partid,$record) = @_;
 1697:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1698: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 1699:     my $wgt    = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb,$udom,$uname);
 1700:     my $wgtmsg = ($wgt > 0) ? &mt('(problem weight)') 
 1701:                            : '<span class="LC_info">'.&mt('problem weight assigned by computer').'</span>';
 1702:     $wgt       = ($wgt > 0 ? $wgt : '1');
 1703:     my $score  = ($$record{'resource.'.$partid.'.awarded'} eq '' ?
 1704: 		  '' : &compute_points($$record{'resource.'.$partid.'.awarded'},$wgt));
 1705:     my $data_WGT='<input type="hidden" name="WGT'.$counter.'_'.$partid.'" value="'.$wgt.'" />'."\n";
 1706:     my $display_part= &get_display_part($partid,$symb);
 1707:     my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 1708: 				       [$partid]);
 1709:     my $aggtries = $$record{'resource.'.$partid.'.tries'};
 1710:     if ($last_resets{$partid}) {
 1711:         $aggtries = &get_num_tries($record,$last_resets{$partid},$partid);
 1712:     }
 1713:     my $result=&Apache::loncommon::start_data_table_row();
 1714:     my $ctr = 0;
 1715:     my $thisweight = 0;
 1716:     my $increment = &get_increment();
 1717: 
 1718:     my $radio.='<table border="0"><tr>'."\n";  # display radio buttons in a nice table 10 across
 1719:     while ($thisweight<=$wgt) {
 1720: 	$radio.= '<td><span class="LC_nobreak"><label><input type="radio" name="RADVAL'.$counter.'_'.$partid.'" '.
 1721:         'onclick="javascript:writeBox(this.form,\''.$counter.'_'.$partid.'\','.
 1722: 	    $thisweight.')" value="'.$thisweight.'" '.
 1723: 	    ($score eq $thisweight ? 'checked="checked"':'').' /> '.$thisweight."</label></span></td>\n";
 1724: 	$radio.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 1725:         $thisweight += $increment;
 1726: 	$ctr++;
 1727:     }
 1728:     $radio.='</tr></table>';
 1729: 
 1730:     my $line.='<input type="text" name="GD_BOX'.$counter.'_'.$partid.'"'.
 1731: 	($score ne ''? ' value = "'.$score.'"':'').' size="4" '.
 1732: 	'onchange="javascript:updateRadio(this.form,\''.$counter.'_'.$partid.'\','.
 1733: 	$wgt.')" /></td>'."\n";
 1734:     $line.='<td>/'.$wgt.' '.$wgtmsg.
 1735: 	($$record{'resource.'.$partid.'.solved'} eq 'correct_by_student' ? '&nbsp;'.$checkIcon : '').
 1736: 	' </td>'."\n";
 1737:     $line.='<td><select name="GD_SEL'.$counter.'_'.$partid.'" '.
 1738: 	'onchange="javascript:clearRadBox(this.form,\''.$counter.'_'.$partid.'\')" >'."\n";
 1739:     if ($$record{'resource.'.$partid.'.solved'} eq 'excused') {
 1740: 	$line.='<option></option>'.
 1741: 	    '<option value="excused" selected="selected">'.&mt('excused').'</option>';
 1742:     } else {
 1743: 	$line.='<option selected="selected"></option>'.
 1744: 	    '<option value="excused" >'.&mt('excused').'</option>';
 1745:     }
 1746:     $line.='<option value="reset status">'.&mt('reset status').'</option></select>'."\n";
 1747: 
 1748: 
 1749:     $result .= 
 1750: 	    '<td>'.$data_WGT.$display_part.'</td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>';
 1751:     $result.=&Apache::loncommon::end_data_table_row();
 1752:     $result.=&Apache::loncommon::start_data_table_row().'<td colspan="6">';
 1753:     $result.='<input type="hidden" name="stores'.$counter.'_'.$partid.'" value="" />'."\n".
 1754: 	'<input type="hidden" name="oldpts'.$counter.'_'.$partid.'" value="'.$score.'" />'."\n".
 1755: 	'<input type="hidden" name="solved'.$counter.'_'.$partid.'" value="'.
 1756: 	$$record{'resource.'.$partid.'.solved'}.'" />'."\n".
 1757:         '<input type="hidden" name="totaltries'.$counter.'_'.$partid.'" value="'.
 1758:         $$record{'resource.'.$partid.'.tries'}.'" />'."\n".
 1759:         '<input type="hidden" name="aggtries'.$counter.'_'.$partid.'" value="'.
 1760:         $aggtries.'" />'."\n";
 1761:     my $res_error;
 1762:     $result.=&handback_box($symb,$uname,$udom,$counter,$partid,$record,\$res_error);
 1763:     $result.='</td>'.&Apache::loncommon::end_data_table_row();
 1764:     if ($res_error) {
 1765:         return &navmap_errormsg();
 1766:     }
 1767:     return $result;
 1768: }
 1769: 
 1770: sub handback_box {
 1771:     my ($symb,$uname,$udom,$counter,$partid,$record,$res_error_pointer) = @_;
 1772:     my ($partlist,$handgrade,$responseType) = &response_type($symb,$res_error_pointer);
 1773:     my (@respids);
 1774:     my @part_response_id = &flatten_responseType($responseType);
 1775:     foreach my $part_response_id (@part_response_id) {
 1776:     	my ($part,$resp) = @{ $part_response_id };
 1777:         if ($part eq $partid) {
 1778:             push(@respids,$resp);
 1779:         }
 1780:     }
 1781:     my $result;
 1782:     foreach my $respid (@respids) {
 1783: 	my $prefix = $counter.'_'.$partid.'_'.$respid.'_';
 1784: 	my $files=&get_submitted_files($udom,$uname,$partid,$respid,$record);
 1785: 	next if (!@$files);
 1786: 	my $file_counter = 0;
 1787: 	foreach my $file (@$files) {
 1788: 	    if ($file =~ /\/portfolio\//) {
 1789:                 $file_counter++;
 1790:     	        my ($file_path, $file_disp) = ($file =~ m|(.+/)(.+)$|);
 1791:     	        my ($name,$version,$ext) = &file_name_version_ext($file_disp);
 1792:     	        $file_disp = "$name.$ext";
 1793:     	        $file = $file_path.$file_disp;
 1794:     	        $result.=&mt('Return commented version of [_1] to student.',
 1795:     			 '<span class="LC_filename">'.$file_disp.'</span>');
 1796:     	        $result.='<input type="file"   name="'.$prefix.'returndoc'.$file_counter.'" />'."\n";
 1797:     	        $result.='<input type="hidden" name="'.$prefix.'origdoc'.$file_counter.'" value="'.$file.'" /><br />'."\n";
 1798: 	    }
 1799: 	}
 1800:         if ($file_counter) {
 1801:             $result .= '<input type="hidden" name="'.$prefix.'countreturndoc" value="'.$file_counter.'" />'."\n".
 1802:                        '<span class="LC_info">'.
 1803:                        '('.&mt('File(s) will be uploaded when you click on Save &amp; Next below.',$file_counter).')</span><br /><br />';
 1804:         }
 1805:     }
 1806:     return $result;    
 1807: }
 1808: 
 1809: sub show_problem {
 1810:     my ($request,$symb,$uname,$udom,$removeform,$viewon,$mode,$form) = @_;
 1811:     my $rendered;
 1812:     my %form = ((ref($form) eq 'HASH')? %{$form} : ());
 1813:     &Apache::lonxml::remember_problem_counter();
 1814:     if ($mode eq 'both' or $mode eq 'text') {
 1815: 	$rendered=&Apache::loncommon::get_student_view($symb,$uname,$udom,
 1816: 						       $env{'request.course.id'},
 1817: 						       undef,\%form);
 1818:     }
 1819:     if ($removeform) {
 1820: 	$rendered=~s|<form(.*?)>||g;
 1821: 	$rendered=~s|</form>||g;
 1822: 	$rendered=~s|(<input[^>]*name\s*=\s*"?)(\w+)("?)|$1would_have_been_$2$3|g;
 1823:     }
 1824:     my $companswer;
 1825:     if ($mode eq 'both' or $mode eq 'answer') {
 1826: 	&Apache::lonxml::restore_problem_counter();
 1827: 	$companswer=
 1828: 	    &Apache::loncommon::get_student_answers($symb,$uname,$udom,
 1829: 						    $env{'request.course.id'},
 1830: 						    %form);
 1831:     }
 1832:     if ($removeform) {
 1833: 	$companswer=~s|<form(.*?)>||g;
 1834: 	$companswer=~s|</form>||g;
 1835: 	$companswer=~s|name="submit"|name="would_have_been_submit"|g;
 1836:     }
 1837:     my $renderheading = &mt('View of the problem');
 1838:     my $answerheading = &mt('Correct answer');
 1839:     if (($uname ne $env{'user.name'}) || ($udom ne $env{'user.domain'})) {
 1840:         my $stu_fullname = $env{'form.fullname'};
 1841:         if ($stu_fullname eq '') {
 1842:             $stu_fullname = &Apache::loncommon::plainname($uname,$udom,'lastname');
 1843:         }
 1844:         my $forwhom = &nameUserString(undef,$stu_fullname,$uname,$udom);
 1845:         if ($forwhom ne '') {
 1846:             $renderheading = &mt('View of the problem for[_1]',$forwhom);
 1847:             $answerheading = &mt('Correct answer for[_1]',$forwhom);
 1848:         }
 1849:     }
 1850:     $rendered=
 1851:         '<div class="LC_Box">'
 1852:        .'<h3 class="LC_hcell">'.$renderheading.'</h3>'
 1853:        .$rendered
 1854:        .'</div>';
 1855:     $companswer=
 1856:         '<div class="LC_Box">'
 1857:        .'<h3 class="LC_hcell">'.$answerheading.'</h3>'
 1858:        .$companswer
 1859:        .'</div>';
 1860:     my $result;
 1861:     if ($mode eq 'both') {
 1862:         $result=$rendered.$companswer;
 1863:     } elsif ($mode eq 'text') {
 1864:         $result=$rendered;
 1865:     } elsif ($mode eq 'answer') {
 1866:         $result=$companswer;
 1867:     }
 1868:     return $result;
 1869: }
 1870: 
 1871: sub files_exist {
 1872:     my ($r, $symb) = @_;
 1873:     my @students = &Apache::loncommon::get_env_multiple('form.stuinfo');
 1874: 
 1875:     foreach my $student (@students) {
 1876:         my ($uname,$udom,$fullname) = split(/:/,$student);
 1877:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 1878: 					      $udom,$uname);
 1879:         my ($string,$timestamp)= &get_last_submission(\%record);
 1880:         foreach my $submission (@$string) {
 1881:             my ($partid,$respid) =
 1882: 		($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 1883:             my $files=&get_submitted_files($udom,$uname,$partid,$respid,
 1884: 					   \%record);
 1885:             return 1 if (@$files);
 1886:         }
 1887:     }
 1888:     return 0;
 1889: }
 1890: 
 1891: sub download_all_link {
 1892:     my ($r,$symb) = @_;
 1893:     unless (&files_exist($r, $symb)) {
 1894:        $r->print(&mt('There are currently no submitted documents.'));
 1895:        return;
 1896:     }
 1897: 
 1898:     my $all_students = 
 1899: 	join("\n", &Apache::loncommon::get_env_multiple('form.stuinfo'));
 1900: 
 1901:     my $parts =
 1902: 	join("\n",&Apache::loncommon::get_env_multiple('form.vPart'));
 1903: 
 1904:     my $identifier = &Apache::loncommon::get_cgi_id();
 1905:     &Apache::lonnet::appenv({'cgi.'.$identifier.'.students' => $all_students,
 1906:                              'cgi.'.$identifier.'.symb' => $symb,
 1907:                              'cgi.'.$identifier.'.parts' => $parts,});
 1908:     $r->print('<a href="/cgi-bin/multidownload.pl?'.$identifier.'">'.
 1909: 	      &mt('Download All Submitted Documents').'</a>');
 1910:     return;
 1911: }
 1912: 
 1913: sub submit_download_link {
 1914:     my ($request,$symb) = @_;
 1915:     if (!$symb) { return ''; }
 1916: #FIXME: Figure out which type of problem this is and provide appropriate download
 1917:     &download_all_link($request,$symb);
 1918: }
 1919: 
 1920: sub build_section_inputs {
 1921:     my $section_inputs;
 1922:     if ($env{'form.section'} eq '') {
 1923:         $section_inputs .= '<input type="hidden" name="section" value="all" />'."\n";
 1924:     } else {
 1925:         my @sections = &Apache::loncommon::get_env_multiple('form.section');
 1926:         foreach my $section (@sections) {
 1927:             $section_inputs .= '<input type="hidden" name="section" value="'.$section.'" />'."\n";
 1928:         }
 1929:     }
 1930:     return $section_inputs;
 1931: }
 1932: 
 1933: # --------------------------- show submissions of a student, option to grade 
 1934: sub submission {
 1935:     my ($request,$counter,$total,$symb) = @_;
 1936:     my ($uname,$udom)     = ($env{'form.student'},$env{'form.userdom'});
 1937:     $udom = ($udom eq '' ? $env{'user.domain'} : $udom); #has form.userdom changed for a student?
 1938:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 1939:     $env{'form.fullname'} = &Apache::loncommon::plainname($uname,$udom,'lastname') if $env{'form.fullname'} eq '';
 1940: 
 1941:     my $probtitle=&Apache::lonnet::gettitle($symb); 
 1942:     if ($symb eq '') { $request->print("Unable to handle ambiguous references:."); return ''; }
 1943: 
 1944:     if (!&canview($usec)) {
 1945: 	$request->print('<span class="LC_warning">Unable to view requested student.('.
 1946: 			$uname.':'.$udom.' in section '.$usec.' in course id '.
 1947: 			$env{'request.course.id'}.')</span>');
 1948: 	return;
 1949:     }
 1950: 
 1951:     if (!$env{'form.lastSub'}) { $env{'form.lastSub'} = 'datesub'; }
 1952:     if (!$env{'form.vProb'}) { $env{'form.vProb'} = 'yes'; }
 1953:     if (!$env{'form.vAns'}) { $env{'form.vAns'} = 'yes'; }
 1954:     my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 1955:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 1956: 	'" src="'.$request->dir_config('lonIconsURL').
 1957: 	'/check.gif" height="16" border="0" />';
 1958: 
 1959:     # header info
 1960:     if ($counter == 0) {
 1961: 	&sub_page_js($request);
 1962: 	&sub_page_kw_js($request);
 1963: 
 1964: 	# option to display problem, only once else it cause problems 
 1965:         # with the form later since the problem has a form.
 1966: 	if ($env{'form.vProb'} eq 'yes' or $env{'form.vAns'} eq 'yes') {
 1967: 	    my $mode;
 1968: 	    if ($env{'form.vProb'} eq 'yes' && $env{'form.vAns'} eq 'yes') {
 1969: 		$mode='both';
 1970: 	    } elsif ($env{'form.vProb'} eq 'yes') {
 1971: 		$mode='text';
 1972: 	    } elsif ($env{'form.vAns'} eq 'yes') {
 1973: 		$mode='answer';
 1974: 	    }
 1975: 	    &Apache::lonxml::clear_problem_counter();
 1976: 	    $request->print(&show_problem($request,$symb,$uname,$udom,0,1,$mode));
 1977: 	}
 1978: 
 1979: 	# kwclr is the only variable that is guaranteed to be non blank 
 1980:         # if this subroutine has been called once.
 1981: 	my %keyhash = ();
 1982: #	if ($env{'form.kwclr'} eq '' && $env{'form.handgrade'} eq 'yes') {
 1983:         if (1) {
 1984: 	    %keyhash = &Apache::lonnet::dump('nohist_handgrade',
 1985: 					     $env{'course.'.$env{'request.course.id'}.'.domain'},
 1986: 					     $env{'course.'.$env{'request.course.id'}.'.num'});
 1987: 
 1988: 	    my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 1989: 	    $env{'form.keywords'} = $keyhash{$symb.'_keywords'} ne '' ? $keyhash{$symb.'_keywords'} : '';
 1990: 	    $env{'form.kwclr'}    = $keyhash{$loginuser.'_kwclr'} ne '' ? $keyhash{$loginuser.'_kwclr'} : 'red';
 1991: 	    $env{'form.kwsize'}   = $keyhash{$loginuser.'_kwsize'} ne '' ? $keyhash{$loginuser.'_kwsize'} : '0';
 1992: 	    $env{'form.kwstyle'}  = $keyhash{$loginuser.'_kwstyle'} ne '' ? $keyhash{$loginuser.'_kwstyle'} : '';
 1993: 	    $env{'form.msgsub'}   = $keyhash{$symb.'_subject'} ne '' ? 
 1994: 		$keyhash{$symb.'_subject'} : $probtitle;
 1995: 	    $env{'form.savemsgN'} = $keyhash{$symb.'_savemsgN'} ne '' ? $keyhash{$symb.'_savemsgN'} : '0';
 1996: 	}
 1997: 	my $overRideScore = $env{'form.overRideScore'} eq '' ? 'no' : $env{'form.overRideScore'};
 1998: 	my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 1999: 	$request->print('<form action="/adm/grades" method="post" name="SCORE" enctype="multipart/form-data">'."\n".
 2000: 			'<input type="hidden" name="command"    value="handgrade" />'."\n".
 2001: 			'<input type="hidden" name="Status"     value="'.$stu_status.'" />'."\n".
 2002: 			'<input type="hidden" name="overRideScore" value="'.$overRideScore.'" />'."\n".
 2003: 			'<input type="hidden" name="refresh"    value="off" />'."\n".
 2004: 			'<input type="hidden" name="studentNo"  value="" />'."\n".
 2005: 			'<input type="hidden" name="gradeOpt"   value="" />'."\n".
 2006: 			'<input type="hidden" name="symb"       value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 2007: 			'<input type="hidden" name="vProb"      value="'.$env{'form.vProb'}.'" />'."\n".
 2008: 			'<input type="hidden" name="vAns"       value="'.$env{'form.vAns'}.'" />'."\n".
 2009: 			'<input type="hidden" name="lastSub"    value="'.$env{'form.lastSub'}.'" />'."\n".
 2010: 			&build_section_inputs().
 2011: 			'<input type="hidden" name="submitonly" value="'.$env{'form.submitonly'}.'" />'."\n".
 2012: 			'<input type="hidden" name="NCT"'.
 2013: 			' value="'.($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : $total+1).'" />'."\n");
 2014: #	if ($env{'form.handgrade'} eq 'yes') {
 2015:         if (1) {
 2016: 	    $request->print('<input type="hidden" name="keywords" value="'.$env{'form.keywords'}.'" />'."\n".
 2017: 			    '<input type="hidden" name="kwclr"    value="'.$env{'form.kwclr'}.'" />'."\n".
 2018: 			    '<input type="hidden" name="kwsize"   value="'.$env{'form.kwsize'}.'" />'."\n".
 2019: 			    '<input type="hidden" name="kwstyle"  value="'.$env{'form.kwstyle'}.'" />'."\n".
 2020: 			    '<input type="hidden" name="msgsub"   value="'.$env{'form.msgsub'}.'" />'."\n".
 2021: 			    '<input type="hidden" name="shownSub" value="0" />'."\n".
 2022: 			    '<input type="hidden" name="savemsgN" value="'.$env{'form.savemsgN'}.'" />'."\n");
 2023: 	    foreach my $partid (&Apache::loncommon::get_env_multiple('form.vPart')) {
 2024: 		$request->print('<input type="hidden" name="vPart" value="'.$partid.'" />'."\n");
 2025: 	    }
 2026: 	}
 2027: 	
 2028: 	my ($cts,$prnmsg) = (1,'');
 2029: 	while ($cts <= $env{'form.savemsgN'}) {
 2030: 	    $prnmsg.='<input type="hidden" name="savemsg'.$cts.'" value="'.
 2031: 		(!exists($keyhash{$symb.'_savemsg'.$cts}) ? 
 2032: 		 &Apache::lonfeedback::clear_out_html($env{'form.savemsg'.$cts}) :
 2033: 		 &Apache::lonfeedback::clear_out_html($keyhash{$symb.'_savemsg'.$cts})).
 2034: 		'" />'."\n".
 2035: 		'<input type="hidden" name="shownOnce'.$cts.'" value="0" />'."\n";
 2036: 	    $cts++;
 2037: 	}
 2038: 	$request->print($prnmsg);
 2039: 
 2040: #	if ($env{'form.handgrade'} eq 'yes') {
 2041:         if (1) {
 2042: 
 2043:             my %lt = &Apache::lonlocal::texthash(
 2044:                           keyw => 'Keyword Options',
 2045:                           list => 'List',
 2046:                           past => 'Paste Selection to List',
 2047:                           high => 'Highlight Attribute',
 2048:                      );    
 2049: #
 2050: # Print out the keyword options line
 2051: #
 2052: 	    $request->print(<<KEYWORDS);
 2053: <br /><b>$lt{'keyw'}:</b>&nbsp;
 2054: <a href="javascript:keywords(document.SCORE);" target="_self">$lt{'list'}</a>&nbsp; &nbsp;
 2055: <a href="#" onmousedown="javascript:getSel(); return false"
 2056:  class="page">$lt{'past'}</a>&nbsp; &nbsp;
 2057: <a href="javascript:kwhighlight();" target="_self">$lt{'high'}</a><br /><br />
 2058: KEYWORDS
 2059: #
 2060: # Load the other essays for similarity check
 2061: #
 2062:             my (undef,undef,$essayurl) = &Apache::lonnet::decode_symb($symb);
 2063: 	    my ($adom,$aname,$apath)=($essayurl=~/^($LONCAPA::domain_re)\/($LONCAPA::username_re)\/(.*)$/);
 2064: 	    $apath=&escape($apath);
 2065: 	    $apath=~s/\W/\_/gs;
 2066:             &init_old_essays($symb,$apath,$adom,$aname);
 2067:         }
 2068:     }
 2069: 
 2070: # This is where output for one specific student would start
 2071:     my $add_class = ($counter%2) ? ' LC_grade_show_user_odd_row' : '';
 2072:     $request->print(
 2073:         "\n\n"
 2074:        .'<div class="LC_grade_show_user'.$add_class.'">'
 2075:        .'<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).'</h2>'
 2076:        ."\n"
 2077:     );
 2078: 
 2079:     # Show additional functions if allowed
 2080:     if ($perm{'vgr'}) {
 2081:         $request->print(
 2082:             &Apache::loncommon::track_student_link(
 2083:                 &mt('View recent activity'),
 2084:                 $uname,$udom,'check')
 2085:            .' '
 2086:         );
 2087:     }
 2088:     if ($perm{'opa'}) {
 2089:         $request->print(
 2090:             &Apache::loncommon::pprmlink(
 2091:                 &mt('Set/Change parameters'),
 2092:                 $uname,$udom,$symb,'check'));
 2093:     }
 2094: 
 2095:     # Show Problem
 2096:     if ($env{'form.vProb'} eq 'all' or $env{'form.vAns'} eq 'all') {
 2097: 	my $mode;
 2098: 	if ($env{'form.vProb'} eq 'all' && $env{'form.vAns'} eq 'all') {
 2099: 	    $mode='both';
 2100: 	} elsif ($env{'form.vProb'} eq 'all' ) {
 2101: 	    $mode='text';
 2102: 	} elsif ($env{'form.vAns'} eq 'all') {
 2103: 	    $mode='answer';
 2104: 	}
 2105: 	&Apache::lonxml::clear_problem_counter();
 2106: 	$request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,{'request.prefix' => 'ctr'.$counter}));
 2107:     }
 2108: 
 2109:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2110:     my $res_error;
 2111:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2112:     if ($res_error) {
 2113:         $request->print(&navmap_errormsg());
 2114:         return;
 2115:     }
 2116: 
 2117:     # Display student info
 2118:     $request->print(($counter == 0 ? '' : '<br />'));
 2119: 
 2120:     my $result='<div class="LC_Box">'
 2121:               .'<h3 class="LC_hcell">'.&mt('Submissions').'</h3>';
 2122:     $result.='<input type="hidden" name="name'.$counter.
 2123:              '" value="'.$env{'form.fullname'}.'" />'."\n";
 2124: #    if ($env{'form.handgrade'} eq 'no') {
 2125:     if (1) {
 2126:         $result.='<p class="LC_info">'
 2127:                 .&mt('Part(s) graded correct by the computer is marked with a [_1] symbol.',$checkIcon)
 2128:                 ."</p>\n";
 2129:     }
 2130: 
 2131:     # If any part of the problem is an essay-response (handgraded), then check for collaborators
 2132:     my $fullname;
 2133:     my $col_fullnames = [];
 2134: #    if ($env{'form.handgrade'} eq 'yes') {
 2135:     if (1) {
 2136: 	(my $sub_result,$fullname,$col_fullnames)=
 2137: 	    &check_collaborators($symb,$uname,$udom,\%record,$handgrade,
 2138: 				 $counter);
 2139: 	$result.=$sub_result;
 2140:     }
 2141:     $request->print($result."\n");
 2142:     
 2143:     # print student answer/submission
 2144:     # Options are (1) Handgraded submission only
 2145:     #             (2) Last submission, includes submission that is not handgraded 
 2146:     #                  (for multi-response type part)
 2147:     #             (3) Last submission plus the parts info
 2148:     #             (4) The whole record for this student
 2149:     
 2150:     my ($string,$timestamp)= &get_last_submission(\%record);
 2151: 	
 2152:     my $lastsubonly;
 2153: 
 2154:     if ($$timestamp eq '') {
 2155:         $lastsubonly.='<div class="LC_grade_submissions_body">'.$$string[0].'</div>'; 
 2156:     } else {
 2157:         $lastsubonly =
 2158:             '<div class="LC_grade_submissions_body">'
 2159:            .'<b>'.&mt('Date Submitted:').'</b> '.$$timestamp."\n";
 2160: 
 2161: 	my %seenparts;
 2162: 	my @part_response_id = &flatten_responseType($responseType);
 2163: 	foreach my $part (@part_response_id) {
 2164: 	    next if ($env{'form.lastSub'} eq 'hdgrade' 
 2165: 			 && $$handgrade{$$part[0].'_'.$$part[1]} ne 'yes');
 2166: 
 2167: 	    my ($partid,$respid) = @{ $part };
 2168: 	    my $display_part=&get_display_part($partid,$symb);
 2169: 	    if ($env{"form.$uname:$udom:$partid:submitted_by"}) {
 2170: 		if (exists($seenparts{$partid})) { next; }
 2171: 		$seenparts{$partid}=1;
 2172:                 $request->print(
 2173:                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2174:                     ' <b>'.&mt('Collaborative submission by: [_1]',
 2175:                                '<a href="javascript:viewSubmitter(\''.
 2176:                                $env{"form.$uname:$udom:$partid:submitted_by"}.
 2177:                                '\');" target="_self">'.
 2178:                                $$fullname{$env{"form.$uname:$udom:$partid:submitted_by"}}.'</a>').
 2179:                     '<br />');
 2180: 		next;
 2181: 		}
 2182: 	    my $responsetype = $responseType->{$partid}->{$respid};
 2183: 	    if (!exists($record{"resource.$partid.$respid.submission"})) {
 2184:                 $lastsubonly.="\n".'<div class="LC_grade_submission_part">'.
 2185:                     '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2186:                     ' <span class="LC_internal_info">'.
 2187:                     '('.&mt('Response ID: [_1]',$respid).')'.
 2188:                     '</span>&nbsp; &nbsp;'.
 2189: 	       	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br /><br /></div>';
 2190: 		next;
 2191: 	    }
 2192: 	    foreach my $submission (@$string) {
 2193: 		my ($partid,$respid) = ($submission =~ /^resource\.([^\.]*)\.([^\.]*)\.submission/);
 2194: 		if (join('_',@{$part}) ne ($partid.'_'.$respid)) { next; }
 2195: 		my ($ressub,$hide,$subval) = split(/:/,$submission,3);
 2196: 		# Similarity check
 2197:                 my $similar='';
 2198:                 my ($type,$trial,$rndseed);
 2199:                 if ($hide eq 'rand') {
 2200:                     $type = 'randomizetry';
 2201:                     $trial = $record{"resource.$partid.tries"};
 2202:                     $rndseed = $record{"resource.$partid.rndseed"};
 2203:                 }
 2204: 	        if ($env{'form.checkPlag'}) {
 2205:     		    my ($oname,$odom,$ocrsid,$oessay,$osim)=
 2206: 		        &most_similar($uname,$udom,$symb,$subval);
 2207: 		    if ($osim) {
 2208: 			$osim=int($osim*100.0);
 2209: 			my %old_course_desc = 
 2210: 			    &Apache::lonnet::coursedescription($ocrsid,
 2211: 							{'one_time' => 1});
 2212: 
 2213:                         if ($hide eq 'anon') {
 2214:                             $similar='<hr /><span class="LC_warning">'.&mt("Essay was found to be similar to another essay submitted for this assignment.").'<br />'.
 2215:                                      &mt('As the current submission is for an anonymous survey, no other details are available.').'</span><hr />';
 2216:                         } else {
 2217: 			    $similar="<hr /><h3><span class=\"LC_warning\">".
 2218: 				&mt('Essay is [_1]% similar to an essay by [_2] in course [_3] (course id [_4]:[_5])',
 2219: 				    $osim,
 2220: 				    &Apache::loncommon::plainname($oname,$odom).' ('.$oname.':'.$odom.')',
 2221: 				        $old_course_desc{'description'},
 2222: 				        $old_course_desc{'num'},
 2223: 				        $old_course_desc{'domain'}).
 2224: 				    '</span></h3><blockquote><i>'.
 2225: 				    &keywords_highlight($oessay).
 2226: 				    '</i></blockquote><hr />';
 2227:                         }
 2228: 	            }
 2229: 		}
 2230: 		my $order=&get_order($partid,$respid,$symb,$uname,$udom,
 2231:                                      undef,$type,$trial,$rndseed);
 2232:                 if ($env{'form.lastSub'} eq 'lastonly' || $env{'form.lastSub'} eq 'datesub' || $env{'form.lastSub'} =~ /^(last|all)$/ || ($env{'form.lastSub'} eq 'hdgrade' && 
 2233: 			 $$handgrade{$$part[0].'_'.$$part[1]} eq 'yes')) {
 2234: 		    my $display_part=&get_display_part($partid,$symb);
 2235:                     $lastsubonly.='<div class="LC_grade_submission_part">'.
 2236:                         '<b>'.&mt('Part: [_1]',$display_part).'</b>'.
 2237:                         ' <span class="LC_internal_info">'.
 2238:                         '('.&mt('Response ID: [_1]',$respid).')'.
 2239:                         '</span>&nbsp; &nbsp;';
 2240: 		    my $files=&get_submitted_files($udom,$uname,$partid,$respid,\%record);
 2241:                         
 2242: 		    if (@$files) {
 2243:                         if ($hide eq 'anon') {
 2244:                             $lastsubonly.='<br />'.&mt('[quant,_1,file] uploaded to this anonymous survey',scalar(@{$files}));
 2245:                         } else {
 2246:                             $lastsubonly.='<br /><br />'.'<b>'.&mt('Submitted Files:').'</b>'
 2247:                                         .'<br /><span class="LC_warning">';
 2248:                             if(@$files == 1) {
 2249:                                 $lastsubonly .= &mt('Like all files provided by users, this file may contain viruses!');
 2250:                             } else {
 2251:                                 $lastsubonly .= &mt('Like all files provided by users, these files may contain viruses!');
 2252:                             }
 2253:                             $lastsubonly .= '</span>';                         
 2254:                             foreach my $file (@$files) {
 2255:                                 &Apache::lonnet::allowuploaded('/adm/grades',$file);
 2256:                                 $lastsubonly.='<br /><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.&Apache::loncommon::icon($file).'" border="0" alt="" /> '.$file.'</a>';
 2257:                             }
 2258:                         }
 2259: 			$lastsubonly.='<br />';
 2260:                     }
 2261:                     if ($hide eq 'anon') {
 2262:                         $lastsubonly.='<br /><b>'.&mt('Anonymous Survey').'</b>'; 
 2263:                     } else {
 2264:              	        $lastsubonly.='<br /><b>'.&mt('Submitted Answer:').' </b>'.
 2265: 			    &cleanRecord($subval,$responsetype,$symb,$partid,
 2266: 					 $respid,\%record,$order,undef,$uname,$udom,$type,$trial,$rndseed);
 2267:                     }
 2268: 	            if ($similar) {$lastsubonly.="<br /><br />$similar\n";}
 2269: 		    $lastsubonly.='</div>';
 2270: 		}
 2271:             }
 2272: 	}
 2273: 	$lastsubonly.='</div>'."\n"; # End: LC_grade_submissions_body
 2274:     }
 2275:     $request->print($lastsubonly);
 2276:     if ($env{'form.lastSub'} eq 'datesub') {
 2277:         my ($parts,$handgrade,$responseType) = &response_type($symb,\$res_error);
 2278: 	$request->print(&displaySubByDates($symb,\%record,$parts,$responseType,$checkIcon,$uname,$udom));
 2279:     } 
 2280:     if ($env{'form.lastSub'} =~ /^(last|all)$/) {
 2281:         $request->print(&Apache::loncommon::get_previous_attempt($symb,$uname,$udom,
 2282: 								 $env{'request.course.id'},
 2283: 								 $last,'.submission',
 2284: 								 'Apache::grades::keywords_highlight'));
 2285:     }
 2286:     $request->print('<input type="hidden" name="unamedom'.$counter.'" value="'.$uname.':'
 2287: 	.$udom.'" />'."\n");
 2288:     # return if view submission with no grading option
 2289:     if (!&canmodify($usec)) {
 2290: 	$request->print('<p><span class="LC_warning">'.&mt('No grading privileges').'</span></p></div>');
 2291: 	return;
 2292:     } else {
 2293: 	$request->print('</div>'."\n");
 2294:     }
 2295: 
 2296:     # essay grading message center
 2297: #    if ($env{'form.handgrade'} eq 'yes') {
 2298:     if (1) {
 2299: 	my $result='<div class="LC_grade_message_center">';
 2300:     
 2301: 	$result.='<div class="LC_grade_message_center_header">'.
 2302: 	    &mt('Send Message').'</div><div class="LC_grade_message_center_body">';
 2303: 	my ($lastname,$givenn) = split(/,/,$env{'form.fullname'});
 2304: 	my $msgfor = $givenn.' '.$lastname;
 2305: 	if (scalar(@$col_fullnames) > 0) {
 2306: 	    my $lastone = pop(@$col_fullnames);
 2307: 	    $msgfor .= ', '.(join ', ',@$col_fullnames).' and '.$lastone.'.';
 2308: 	}
 2309: 	$msgfor =~ s/\'/\\'/g; #' stupid emacs - no! javascript
 2310: 	$result.='<input type="hidden" name="includemsg'.$counter.'" value="" />'."\n".
 2311: 	    '<input type="hidden" name="newmsg'.$counter.'" value="" />'."\n";
 2312: 	$result.='&nbsp;<a href="javascript:msgCenter(document.SCORE,'.$counter.
 2313: 	    ',\''.$msgfor.'\');" target="_self">'.
 2314: 	    &mt('Compose message to student'.(scalar(@$col_fullnames) >= 1 ? 's' : '')).'</a><label> ('.
 2315: 	    &mt('incl. grades').' <input type="checkbox" name="withgrades'.$counter.'" /></label>)'.
 2316: 	    ' <img src="'.$request->dir_config('lonIconsURL').
 2317: 	    '/mailbkgrd.gif" width="14" height="10" alt="" name="mailicon'.$counter.'" />'."\n".
 2318: 	    '<br />&nbsp;('.
 2319: 	    &mt('Message will be sent when you click on Save &amp; Next below.').")\n";
 2320: 	$result.='</div></div>';
 2321: 	$request->print($result);
 2322:     }
 2323: 
 2324:     my %seen = ();
 2325:     my @partlist;
 2326:     my @gradePartRespid;
 2327:     my @part_response_id = &flatten_responseType($responseType);
 2328:     $request->print(
 2329:         '<div class="LC_Box">'
 2330:        .'<h3 class="LC_hcell">'.&mt('Assign Grades').'</h3>'
 2331:     );
 2332:     $request->print(&gradeBox_start());
 2333:     foreach my $part_response_id (@part_response_id) {
 2334:     	my ($partid,$respid) = @{ $part_response_id };
 2335: 	my $part_resp = join('_',@{ $part_response_id });
 2336: 	next if ($seen{$partid} > 0);
 2337: 	$seen{$partid}++;
 2338: 	next if ($$handgrade{$part_resp} ne 'yes' 
 2339: 		 && $env{'form.lastSub'} eq 'hdgrade');
 2340: 	push(@partlist,$partid);
 2341: 	push(@gradePartRespid,$partid.'.'.$respid);
 2342: 	$request->print(&gradeBox($request,$symb,$uname,$udom,$counter,$partid,\%record));
 2343:     }
 2344:     $request->print(&gradeBox_end()); # </div>
 2345:     $request->print('</div>');
 2346: 
 2347:     $request->print('<div class="LC_grade_info_links">');
 2348:     $request->print('</div>');
 2349: 
 2350:     $result='<input type="hidden" name="partlist'.$counter.
 2351: 	'" value="'.(join ":",@partlist).'" />'."\n";
 2352:     $result.='<input type="hidden" name="gradePartRespid'.
 2353: 	'" value="'.(join ":",@gradePartRespid).'" />'."\n" if ($counter == 0);
 2354:     my $ctr = 0;
 2355:     while ($ctr < scalar(@partlist)) {
 2356: 	$result.='<input type="hidden" name="partid'.$counter.'_'.$ctr.'" value="'.
 2357: 	    $partlist[$ctr].'" />'."\n";
 2358: 	$ctr++;
 2359:     }
 2360:     $request->print($result.''."\n");
 2361: 
 2362: # Done with printing info for one student
 2363: 
 2364:     $request->print('</div>');#LC_grade_show_user
 2365: 
 2366: 
 2367:     # print end of form
 2368:     if ($counter == $total) {
 2369:         my $endform='<br /><hr /><table border="0"><tr><td>'."\n";
 2370: 	$endform.='<input type="button" value="'.&mt('Save &amp; Next').'" '.
 2371: 	    'onclick="javascript:checksubmit(this.form,\'Save & Next\','.
 2372: 	    $total.','.scalar(@partlist).');" target="_self" /> &nbsp;'."\n";
 2373: 	my $ntstu ='<select name="NTSTU">'.
 2374: 	    '<option>1</option><option>2</option>'.
 2375: 	    '<option>3</option><option>5</option>'.
 2376: 	    '<option>7</option><option>10</option></select>'."\n";
 2377: 	my $nsel = ($env{'form.NTSTU'} ne '' ? $env{'form.NTSTU'} : '1');
 2378: 	$ntstu =~ s/<option>$nsel</<option selected="selected">$nsel</;
 2379:         $endform.=&mt('[_1]student(s)',$ntstu);
 2380: 	$endform.='&nbsp;&nbsp;<input type="button" value="'.&mt('Previous').'" '.
 2381: 	    'onclick="javascript:checksubmit(this.form,\'Previous\');" target="_self" /> &nbsp;'."\n".
 2382: 	    '<input type="button" value="'.&mt('Next').'" '.
 2383: 	    'onclick="javascript:checksubmit(this.form,\'Next\');" target="_self" /> &nbsp;';
 2384:         $endform.='<span class="LC_warning">'.
 2385:                   &mt('(Next and Previous (student) do not save the scores.)').
 2386:                   '</span>'."\n" ;
 2387:         $endform.="<input type='hidden' value='".&get_increment().
 2388:             "' name='increment' />";
 2389: 	$endform.='</td></tr></table></form>';
 2390: 	$request->print($endform);
 2391:     }
 2392:     return '';
 2393: }
 2394: 
 2395: sub check_collaborators {
 2396:     my ($symb,$uname,$udom,$record,$handgrade,$counter) = @_;
 2397:     my ($result,@col_fullnames);
 2398:     my ($classlist,undef,$fullname) = &getclasslist('all','0');
 2399:     foreach my $part (keys(%$handgrade)) {
 2400: 	my $ncol = &Apache::lonnet::EXT('resource.'.$part.
 2401: 					'.maxcollaborators',
 2402: 					$symb,$udom,$uname);
 2403: 	next if ($ncol <= 0);
 2404: 	$part =~ s/\_/\./g;
 2405: 	next if ($record->{'resource.'.$part.'.collaborators'} eq '');
 2406: 	my (@good_collaborators, @bad_collaborators);
 2407: 	foreach my $possible_collaborator
 2408: 	    (split(/[,;\s]+/,$record->{'resource.'.$part.'.collaborators'})) { 
 2409: 	    $possible_collaborator =~ s/[\$\^\(\)]//g;
 2410: 	    next if ($possible_collaborator eq '');
 2411: 	    my ($co_name,$co_dom) = split(/:/,$possible_collaborator);
 2412: 	    $co_dom = $udom if (! defined($co_dom) || $co_dom =~ /^domain$/i);
 2413: 	    next if ($co_name eq $uname && $co_dom eq $udom);
 2414: 	    # Doing this grep allows 'fuzzy' specification
 2415: 	    my @matches = grep(/^\Q$co_name\E:\Q$co_dom\E$/i, 
 2416: 			       keys(%$classlist));
 2417: 	    if (! scalar(@matches)) {
 2418: 		push(@bad_collaborators, $possible_collaborator);
 2419: 	    } else {
 2420: 		push(@good_collaborators, @matches);
 2421: 	    }
 2422: 	}
 2423: 	if (scalar(@good_collaborators) != 0) {
 2424: 	    $result.='<br />'.&mt('Collaborators:').'<ol>';
 2425: 	    foreach my $name (@good_collaborators) {
 2426: 		my ($lastname,$givenn) = split(/,/,$$fullname{$name});
 2427: 		push(@col_fullnames, $givenn.' '.$lastname);
 2428: 		$result.='<li>'.$fullname->{$name}.'</li>';
 2429: 	    }
 2430: 	    $result.='</ol><br />'."\n";
 2431: 	    my ($part)=split(/\./,$part);
 2432: 	    $result.='<input type="hidden" name="collaborator'.$counter.
 2433: 		'" value="'.$part.':'.(join ':',@good_collaborators).'" />'.
 2434: 		"\n";
 2435: 	}
 2436: 	if (scalar(@bad_collaborators) > 0) {
 2437: 	    $result.='<div class="LC_warning">';
 2438: 	    $result.=&mt('This student has submitted [quant,_1,invalid collaborator]: [_2]',scalar(@bad_collaborators),join(', ',@bad_collaborators));
 2439: 	    $result .= '</div>';
 2440: 	}         
 2441: 	if (scalar(@bad_collaborators > $ncol)) {
 2442: 	    $result .= '<div class="LC_warning">';
 2443: 	    $result .= &mt('This student has submitted too many '.
 2444: 		'collaborators.  Maximum is [_1].',$ncol);
 2445: 	    $result .= '</div>';
 2446: 	}
 2447:     }
 2448:     return ($result,$fullname,\@col_fullnames);
 2449: }
 2450: 
 2451: #--- Retrieve the last submission for all the parts
 2452: sub get_last_submission {
 2453:     my ($returnhash)=@_;
 2454:     my (@string,$timestamp,%lasthidden);
 2455:     if ($$returnhash{'version'}) {
 2456: 	my %lasthash=();
 2457: 	my ($version);
 2458: 	for ($version=1;$version<=$$returnhash{'version'};$version++) {
 2459: 	    foreach my $key (sort(split(/\:/,
 2460: 					$$returnhash{$version.':keys'}))) {
 2461: 		$lasthash{$key}=$$returnhash{$version.':'.$key};
 2462: 		$timestamp = 
 2463: 		    &Apache::lonlocal::locallocaltime($$returnhash{$version.':timestamp'});
 2464: 	    }
 2465: 	}
 2466:         my (%typeparts,%randombytry);
 2467:         my $showsurv = 
 2468:             &Apache::lonnet::allowed('vas',$env{'request.course.id'});
 2469:         foreach my $key (sort(keys(%lasthash))) {
 2470:             if ($key =~ /\.type$/) {
 2471:                 if (($lasthash{$key} eq 'anonsurvey') || 
 2472:                     ($lasthash{$key} eq 'anonsurveycred') ||
 2473:                     ($lasthash{$key} eq 'randomizetry')) {
 2474:                     my ($ign,@parts) = split(/\./,$key);
 2475:                     pop(@parts);
 2476:                     my $id = join('.',@parts);
 2477:                     if ($lasthash{$key} eq 'randomizetry') {
 2478:                         $randombytry{$ign.'.'.$id} = $lasthash{$key};
 2479:                     } else {
 2480:                         unless ($showsurv) {
 2481:                             $typeparts{$ign.'.'.$id} = $lasthash{$key};
 2482:                         }
 2483:                     }
 2484:                     delete($lasthash{$key});
 2485:                 }
 2486:             }
 2487:         }
 2488:         my @hidden = keys(%typeparts);
 2489:         my @randomize = keys(%randombytry);
 2490: 	foreach my $key (keys(%lasthash)) {
 2491: 	    next if ($key !~ /\.submission$/);
 2492:             my $hide;
 2493:             if (@hidden) {
 2494:                 foreach my $id (@hidden) {
 2495:                     if ($key =~ /^\Q$id\E/) {
 2496:                         $hide = 'anon';
 2497:                         last;
 2498:                     }
 2499:                 }
 2500:             }
 2501:             unless ($hide) {
 2502:                 if (@randomize) {
 2503:                     foreach my $id (@hidden) {
 2504:                         if ($key =~ /^\Q$id\E/) {
 2505:                             $hide = 'rand';
 2506:                             last;
 2507:                         }
 2508:                     }
 2509:                 }
 2510:             }
 2511: 	    my ($partid,$foo) = split(/submission$/,$key);
 2512: 	    my $draft  = $lasthash{$partid.'awarddetail'} eq 'DRAFT' ?
 2513: 		'<span class="LC_warning">Draft Copy</span> ' : '';
 2514: 	    push(@string, join(':', $key, $hide, $draft.$lasthash{$key}));
 2515: 	}
 2516:     }
 2517:     if (!@string) {
 2518: 	$string[0] =
 2519: 	    '<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span>';
 2520:     }
 2521:     return (\@string,\$timestamp);
 2522: }
 2523: 
 2524: #--- High light keywords, with style choosen by user.
 2525: sub keywords_highlight {
 2526:     my $string    = shift;
 2527:     my $size      = $env{'form.kwsize'} eq '0' ? '' : 'size='.$env{'form.kwsize'};
 2528:     my $styleon   = $env{'form.kwstyle'} eq ''  ? '' : $env{'form.kwstyle'};
 2529:     (my $styleoff = $styleon) =~ s/\</\<\//;
 2530:     my @keylist   = split(/[,\s+]/,$env{'form.keywords'});
 2531:     foreach my $keyword (@keylist) {
 2532: 	$string =~ s/\b\Q$keyword\E(\b|\.)/<font color\=$env{'form.kwclr'} $size\>$styleon$keyword$styleoff<\/font>/gi;
 2533:     }
 2534:     return $string;
 2535: }
 2536: 
 2537: # For Tasks provide a mechanism to display previous version for one specific student
 2538: 
 2539: sub show_previous_task_version {
 2540:     my ($request,$symb) = @_;
 2541:     if ($symb eq '') {
 2542:         $request->print("Unable to handle ambiguous references.");
 2543: 
 2544:         return '';
 2545:     }
 2546:     my ($uname,$udom) = ($env{'form.student'},$env{'form.userdom'});
 2547:     my $usec = &Apache::lonnet::getsection($udom,$uname,$env{'request.course.id'});
 2548:     if (!&canview($usec)) {
 2549:         $request->print('<span class="LC_warning">Unable to view previous version for requested student.('.
 2550:                         $uname.':'.$udom.' in section '.$usec.' in course id '.
 2551:                         $env{'request.course.id'}.')</span>');
 2552:         return;
 2553:     }
 2554:     my $mode = 'both';
 2555:     my $isTask = ($symb =~/\.task$/);
 2556:     if ($isTask) {
 2557:         if ($env{'form.previousversion'} =~ /^\d+$/) {
 2558:             if ($env{'form.fullname'} eq '') {
 2559:                 $env{'form.fullname'} =
 2560:                     &Apache::loncommon::plainname($uname,$udom,'lastname');
 2561:             }
 2562:             my $probtitle=&Apache::lonnet::gettitle($symb);
 2563:             $request->print("\n\n".
 2564:                             '<div class="LC_grade_show_user">'.
 2565:                             '<h2>'.&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 2566:                             '</h2>'."\n");
 2567:             &Apache::lonxml::clear_problem_counter();
 2568:             $request->print(&show_problem($request,$symb,$uname,$udom,1,1,$mode,
 2569:                             {'previousversion' => $env{'form.previousversion'} }));
 2570:             $request->print("\n</div>");
 2571:         }
 2572:     }
 2573:     return;
 2574: }
 2575: 
 2576: sub choose_task_version_form {
 2577:     my ($symb,$uname,$udom,$nomenu) = @_;
 2578:     my $isTask = ($symb =~/\.task$/);
 2579:     my ($current,$version,$result,$js,$displayed,$rowtitle);
 2580:     if ($isTask) {
 2581:         my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
 2582:                                               $udom,$uname);
 2583:         if (($record{'resource.0.version'} eq '') ||
 2584:             ($record{'resource.0.version'} < 2)) {
 2585:             return ($record{'resource.0.version'},
 2586:                     $record{'resource.0.version'},$result,$js);
 2587:         } else {
 2588:             $current = $record{'resource.0.version'};
 2589:         }
 2590:         if ($env{'form.previousversion'}) {
 2591:             $displayed = $env{'form.previousversion'};
 2592:             $rowtitle = &mt('Choose another version:')
 2593:         } else {
 2594:             $displayed = $current;
 2595:             $rowtitle = &mt('Show earlier version:');
 2596:         }
 2597:         $result = '<div class="LC_left_float">';
 2598:         my $list;
 2599:         my $numversions = 0;
 2600:         for (my $i=1; $i<=$record{'resource.0.version'}; $i++) {
 2601:             if ($i == $current) {
 2602:                 if (!$env{'form.previousversion'} || $nomenu) {
 2603:                     next;
 2604:                 } else {
 2605:                     $list .= '<option value="'.$i.'">'.&mt('Current').'</option>'."\n";
 2606:                     $numversions ++;
 2607:                 }
 2608:             } elsif (defined($record{'resource.'.$i.'.0.status'})) {
 2609:                 unless ($i == $env{'form.previousversion'}) {
 2610:                     $numversions ++;
 2611:                 }
 2612:                 $list .= '<option value="'.$i.'">'.$i.'</option>'."\n";
 2613:             }
 2614:         }
 2615:         if ($numversions) {
 2616:             $symb = &HTML::Entities::encode($symb,'<>"&');
 2617:             $result .=
 2618:                 '<form name="getprev" method="post" action=""'.
 2619:                 ' onsubmit="return previousVersion('."'$uname','$udom','$symb','$displayed'".');">'.
 2620:                 &Apache::loncommon::start_data_table().
 2621:                 &Apache::loncommon::start_data_table_row().
 2622:                 '<th align="left">'.$rowtitle.'</th>'.
 2623:                 '<td><select name="version">'.
 2624:                 '<option>'.&mt('Select').'</option>'.
 2625:                 $list.
 2626:                 '</select></td>'.
 2627:                 &Apache::loncommon::end_data_table_row();
 2628:             unless ($nomenu) {
 2629:                 $result .= &Apache::loncommon::start_data_table_row().
 2630:                 '<th align="left">'.&mt('Open in new window').'</th>'.
 2631:                 '<td><span class="LC_nobreak">'.
 2632:                 '<label><input type="radio" name="prevwin" value="1" />'.
 2633:                 &mt('Yes').'</label>'.
 2634:                 '<label><input type="radio" name="prevwin" value="0" checked="checked" />'.&mt('No').'</label>'.
 2635:                 '</span></td>'.
 2636:                 &Apache::loncommon::end_data_table_row();
 2637:             }
 2638:             $result .=
 2639:                 &Apache::loncommon::start_data_table_row().
 2640:                 '<th align="left">&nbsp;</th>'.
 2641:                 '<td>'.
 2642:                 '<input type="submit" name="prevsub" value="'.&mt('Display').'" />'.
 2643:                 '</td>'.
 2644:                 &Apache::loncommon::end_data_table_row().
 2645:                 &Apache::loncommon::end_data_table().
 2646:                 '</form>';
 2647:             $js = &previous_display_javascript($nomenu,$current);
 2648:         } elsif ($displayed && $nomenu) {
 2649:             $result .= '<a href="javascript:window.close()">'.&mt('Close window').'</a>';
 2650:         } else {
 2651:             $result .= &mt('No previous versions to show for this student');
 2652:         }
 2653:         $result .= '</div>';
 2654:     }
 2655:     return ($current,$displayed,$result,$js);
 2656: }
 2657: 
 2658: sub previous_display_javascript {
 2659:     my ($nomenu,$current) = @_;
 2660:     my $js = <<"JSONE";
 2661: <script type="text/javascript">
 2662: // <![CDATA[
 2663: function previousVersion(uname,udom,symb) {
 2664:     var current = '$current';
 2665:     var version = document.getprev.version.options[document.getprev.version.selectedIndex].value;
 2666:     var prevstr = new RegExp("^\\\\d+\$");
 2667:     if (!prevstr.test(version)) {
 2668:         return false;
 2669:     }
 2670:     var url = '';
 2671:     if (version == current) {
 2672:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=submission';
 2673:     } else {
 2674:         url = '/adm/grades?student='+uname+'&userdom='+udom+'&symb='+symb+'&command=versionsub&previousversion='+version;
 2675:     }
 2676: JSONE
 2677:     if ($nomenu) {
 2678:         $js .= <<"JSTWO";
 2679:     document.location.href = url;
 2680: JSTWO
 2681:     } else {
 2682:         $js .= <<"JSTHREE";
 2683:     var newwin = 0;
 2684:     for (var i=0; i<document.getprev.prevwin.length; i++) {
 2685:         if (document.getprev.prevwin[i].checked == true) {
 2686:             newwin = document.getprev.prevwin[i].value;
 2687:         }
 2688:     }
 2689:     if (newwin == 1) {
 2690:         var options = 'height=600,width=800,resizable=yes,scrollbars=yes,location=no,menubar=no,toolbar=no';
 2691:         url = url+'&inhibitmenu=yes';
 2692:         if (typeof(previousWin) == 'undefined' || previousWin.closed) {
 2693:             previousWin = window.open(url,'',options,1);
 2694:         } else {
 2695:             previousWin.location.href = url;
 2696:         }
 2697:         previousWin.focus();
 2698:         return false;
 2699:     } else {
 2700:         document.location.href = url;
 2701:         return false;
 2702:     }
 2703: JSTHREE
 2704:     }
 2705:     $js .= <<"ENDJS";
 2706:     return false;
 2707: }
 2708: // ]]>
 2709: </script>
 2710: ENDJS
 2711: 
 2712: }
 2713: 
 2714: #--- Called from submission routine
 2715: sub processHandGrade {
 2716:     my ($request,$symb) = @_;
 2717:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 2718:     my $button = $env{'form.gradeOpt'};
 2719:     my $ngrade = $env{'form.NCT'};
 2720:     my $ntstu  = $env{'form.NTSTU'};
 2721:     my $cdom   = $env{'course.'.$env{'request.course.id'}.'.domain'};
 2722:     my $cnum   = $env{'course.'.$env{'request.course.id'}.'.num'};
 2723: 
 2724:     if ($button eq 'Save & Next') {
 2725: 	my $ctr = 0;
 2726: 	while ($ctr < $ngrade) {
 2727: 	    my ($uname,$udom) = split(/:/,$env{'form.unamedom'.$ctr});
 2728: 	    my ($errorflag,$pts,$wgt) = &saveHandGrade($request,$symb,$uname,$udom,$ctr);
 2729: 	    if ($errorflag eq 'no_score') {
 2730: 		$ctr++;
 2731: 		next;
 2732: 	    }
 2733: 	    if ($errorflag eq 'not_allowed') {
 2734: 		$request->print("<span class=\"LC_warning\">Not allowed to modify grades for $uname:$udom</span>");
 2735: 		$ctr++;
 2736: 		next;
 2737: 	    }
 2738: 	    my $includemsg = $env{'form.includemsg'.$ctr};
 2739: 	    my ($subject,$message,$msgstatus) = ('','','');
 2740: 	    my $restitle = &Apache::lonnet::gettitle($symb);
 2741:             my ($feedurl,$showsymb) =
 2742: 		&get_feedurl_and_symb($symb,$uname,$udom);
 2743: 	    my $messagetail;
 2744: 	    if ($includemsg =~ /savemsg|newmsg\Q$ctr\E/) {
 2745: 		$subject = $env{'form.msgsub'} if ($includemsg =~ /msgsub/);
 2746: 		unless ($subject=~/\w/) { $subject=&mt('Grading Feedback'); }
 2747: 		$subject.=' ['.$restitle.']';
 2748: 		my (@msgnum) = split(/,/,$includemsg);
 2749: 		foreach (@msgnum) {
 2750: 		    $message.=$env{'form.'.$_} if ($_ =~ /savemsg|newmsg/ && $_ ne '');
 2751: 		}
 2752: 		$message =&Apache::lonfeedback::clear_out_html($message);
 2753: 		if ($env{'form.withgrades'.$ctr}) {
 2754: 		    $message.="\n\nPoint".($pts > 1 ? 's':'').' awarded = '.$pts.' out of '.$wgt;
 2755: 		    $messagetail = " for <a href=\"".
 2756: 		                   $feedurl."?symb=$showsymb\">$restitle</a>";
 2757: 		}
 2758: 		$msgstatus = 
 2759:                     &Apache::lonmsg::user_normal_msg($uname,$udom,$subject,
 2760: 						     $message.$messagetail,
 2761:                                                      undef,$feedurl,undef,
 2762:                                                      undef,undef,$showsymb,
 2763:                                                      $restitle);
 2764: 		$request->print('<br />'.&mt('Sending message to [_1]',$uname.':'.$udom).': '.
 2765: 				$msgstatus.'<br />');
 2766: 	    }
 2767: 	    if ($env{'form.collaborator'.$ctr}) {
 2768: 		my @collabstrs=&Apache::loncommon::get_env_multiple("form.collaborator$ctr");
 2769: 		foreach my $collabstr (@collabstrs) {
 2770: 		    my ($part,@collaborators) = split(/:/,$collabstr);
 2771: 		    foreach my $collaborator (@collaborators) {
 2772: 			my ($errorflag,$pts,$wgt) = 
 2773: 			    &saveHandGrade($request,$symb,$collaborator,$udom,$ctr,
 2774: 					   $env{'form.unamedom'.$ctr},$part);
 2775: 			if ($errorflag eq 'not_allowed') {
 2776: 			    $request->print("<span class=\"LC_error\">".&mt('Not allowed to modify grades for [_1]',"$collaborator:$udom")."</span>");
 2777: 			    next;
 2778: 			} elsif ($message ne '') {
 2779: 			    my ($baseurl,$showsymb) = 
 2780: 				&get_feedurl_and_symb($symb,$collaborator,
 2781: 						      $udom);
 2782: 			    if ($env{'form.withgrades'.$ctr}) {
 2783: 				$messagetail = " for <a href=\"".
 2784:                                     $baseurl."?symb=$showsymb\">$restitle</a>";
 2785: 			    }
 2786: 			    $msgstatus = 
 2787: 				&Apache::lonmsg::user_normal_msg($collaborator,$udom,$subject,$message.$messagetail,undef,$baseurl,undef,undef,undef,$showsymb,$restitle);
 2788: 			}
 2789: 		    }
 2790: 		}
 2791: 	    }
 2792: 	    $ctr++;
 2793: 	}
 2794:     }
 2795: 
 2796: #    if ($env{'form.handgrade'} eq 'yes') {
 2797:     if (1) {
 2798: 	# Keywords sorted in alphabatical order
 2799: 	my $loginuser = $env{'user.name'}.':'.$env{'user.domain'};
 2800: 	my %keyhash = ();
 2801: 	$env{'form.keywords'}           =~ s/,\s{0,}|\s+/ /g;
 2802: 	$env{'form.keywords'}           =~ s/^\s+|\s+$//;
 2803: 	my (@keywords) = sort(split(/\s+/,$env{'form.keywords'}));
 2804: 	$env{'form.keywords'} = join(' ',@keywords);
 2805: 	$keyhash{$symb.'_keywords'}     = $env{'form.keywords'};
 2806: 	$keyhash{$symb.'_subject'}      = $env{'form.msgsub'};
 2807: 	$keyhash{$loginuser.'_kwclr'}   = $env{'form.kwclr'};
 2808: 	$keyhash{$loginuser.'_kwsize'}  = $env{'form.kwsize'};
 2809: 	$keyhash{$loginuser.'_kwstyle'} = $env{'form.kwstyle'};
 2810: 
 2811: 	# message center - Order of message gets changed. Blank line is eliminated.
 2812: 	# New messages are saved in env for the next student.
 2813: 	# All messages are saved in nohist_handgrade.db
 2814: 	my ($ctr,$idx) = (1,1);
 2815: 	while ($ctr <= $env{'form.savemsgN'}) {
 2816: 	    if ($env{'form.savemsg'.$ctr} ne '') {
 2817: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.savemsg'.$ctr};
 2818: 		$idx++;
 2819: 	    }
 2820: 	    $ctr++;
 2821: 	}
 2822: 	$ctr = 0;
 2823: 	while ($ctr < $ngrade) {
 2824: 	    if ($env{'form.newmsg'.$ctr} ne '') {
 2825: 		$keyhash{$symb.'_savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2826: 		$env{'form.savemsg'.$idx} = $env{'form.newmsg'.$ctr};
 2827: 		$idx++;
 2828: 	    }
 2829: 	    $ctr++;
 2830: 	}
 2831: 	$env{'form.savemsgN'} = --$idx;
 2832: 	$keyhash{$symb.'_savemsgN'} = $env{'form.savemsgN'};
 2833: 	my $putresult = &Apache::lonnet::put
 2834: 	    ('nohist_handgrade',\%keyhash,$cdom,$cnum);
 2835:     }
 2836:     # Called by Save & Refresh from Highlight Attribute Window
 2837:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 2838:     if ($env{'form.refresh'} eq 'on') {
 2839: 	my ($ctr,$total) = (0,0);
 2840: 	while ($ctr < $ngrade) {
 2841: 	    $total++ if  $env{'form.unamedom'.$ctr} ne '';
 2842: 	    $ctr++;
 2843: 	}
 2844: 	$env{'form.NTSTU'}=$ngrade;
 2845: 	$ctr = 0;
 2846: 	while ($ctr < $total) {
 2847: 	    my $processUser = $env{'form.unamedom'.$ctr};
 2848: 	    ($env{'form.student'},$env{'form.userdom'}) = split(/:/,$processUser);
 2849: 	    $env{'form.fullname'} = $$fullname{$processUser};
 2850: 	    &submission($request,$ctr,$total-1,$symb);
 2851: 	    $ctr++;
 2852: 	}
 2853: 	return '';
 2854:     }
 2855: 
 2856:     # Get the next/previous one or group of students
 2857:     my $firststu = $env{'form.unamedom0'};
 2858:     my $laststu = $env{'form.unamedom'.($ngrade-1)};
 2859:     my $ctr = 2;
 2860:     while ($laststu eq '') {
 2861: 	$laststu  = $env{'form.unamedom'.($ngrade-$ctr)};
 2862: 	$ctr++;
 2863: 	$laststu = $firststu if ($ctr > $ngrade);
 2864:     }
 2865: 
 2866:     my (@parsedlist,@nextlist);
 2867:     my ($nextflg) = 0;
 2868:     foreach my $item (sort 
 2869: 	     {
 2870: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 2871: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 2872: 		 }
 2873: 		 return $a cmp $b;
 2874: 	     } (keys(%$fullname))) {
 2875: # FIXME: this is fishy, looks like the button label
 2876: 	if ($nextflg == 1 && $button =~ /Next$/) {
 2877: 	    push(@parsedlist,$item);
 2878: 	}
 2879: 	$nextflg = 1 if ($item eq $laststu);
 2880: 	if ($button eq 'Previous') {
 2881: 	    last if ($item eq $firststu);
 2882: 	    push(@parsedlist,$item);
 2883: 	}
 2884:     }
 2885:     $ctr = 0;
 2886: # FIXME: this is fishy, looks like the button label
 2887:     @parsedlist = reverse @parsedlist if ($button eq 'Previous');
 2888:     my $res_error;
 2889:     my ($partlist) = &response_type($symb,\$res_error);
 2890:     if ($res_error) {
 2891:         $request->print(&navmap_errormsg());
 2892:         return;
 2893:     }
 2894:     foreach my $student (@parsedlist) {
 2895: 	my $submitonly=$env{'form.submitonly'};
 2896: 	my ($uname,$udom) = split(/:/,$student);
 2897: 	
 2898: 	if ($submitonly eq 'queued') {
 2899: 	    my %queue_status = 
 2900: 		&Apache::bridgetask::get_student_status($symb,$cdom,$cnum,
 2901: 							$udom,$uname);
 2902: 	    next if (!defined($queue_status{'gradingqueue'}));
 2903: 	}
 2904: 
 2905: 	if ($submitonly =~ /^(yes|graded|incorrect)$/) {
 2906: #	    my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$udom,$uname);
 2907: 	    my %status=&student_gradeStatus($symb,$udom,$uname,$partlist);
 2908: 	    my $submitted = 0;
 2909: 	    my $ungraded = 0;
 2910: 	    my $incorrect = 0;
 2911: 	    foreach my $item (keys(%status)) {
 2912: 		$submitted = 1 if ($status{$item} ne 'nothing');
 2913: 		$ungraded = 1 if ($status{$item} =~ /^ungraded/);
 2914: 		$incorrect = 1 if ($status{$item} =~ /^incorrect/);
 2915: 		my ($foo,$partid,$foo1) = split(/\./,$item);
 2916: 		if ($status{'resource.'.$partid.'.submitted_by'} ne '') {
 2917: 		    $submitted = 0;
 2918: 		}
 2919: 	    }
 2920: 	    next if (!$submitted && ($submitonly eq 'yes' ||
 2921: 				     $submitonly eq 'incorrect' ||
 2922: 				     $submitonly eq 'graded'));
 2923: 	    next if (!$ungraded && ($submitonly eq 'graded'));
 2924: 	    next if (!$incorrect && $submitonly eq 'incorrect');
 2925: 	}
 2926: 	push(@nextlist,$student) if ($ctr < $ntstu);
 2927: 	last if ($ctr == $ntstu);
 2928: 	$ctr++;
 2929:     }
 2930: 
 2931:     $ctr = 0;
 2932:     my $total = scalar(@nextlist)-1;
 2933: 
 2934:     foreach (sort(@nextlist)) {
 2935: 	my ($uname,$udom,$submitter) = split(/:/);
 2936: 	$env{'form.student'}  = $uname;
 2937: 	$env{'form.userdom'}  = $udom;
 2938: 	$env{'form.fullname'} = $$fullname{$_};
 2939: 	&submission($request,$ctr,$total,$symb);
 2940: 	$ctr++;
 2941:     }
 2942:     if ($total < 0) {
 2943: 	my $the_end.='<p>'.&mt('[_1]Message:[_2] No more students for this section or class.','<b>','</b>').'</p>'."\n";
 2944: 	$request->print($the_end);
 2945:     }
 2946:     return '';
 2947: }
 2948: 
 2949: #---- Save the score and award for each student, if changed
 2950: sub saveHandGrade {
 2951:     my ($request,$symb,$stuname,$domain,$newflg,$submitter,$part) = @_;
 2952:     my @version_parts;
 2953:     my $usec = &Apache::lonnet::getsection($domain,$stuname,
 2954: 					   $env{'request.course.id'});
 2955:     if (!&canmodify($usec)) { return('not_allowed'); }
 2956:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},$domain,$stuname);
 2957:     my @parts_graded;
 2958:     my %newrecord  = ();
 2959:     my ($pts,$wgt) = ('','');
 2960:     my %aggregate = ();
 2961:     my $aggregateflag = 0;
 2962:     my @parts = split(/:/,$env{'form.partlist'.$newflg});
 2963:     foreach my $new_part (@parts) {
 2964: 	#collaborator ($submi may vary for different parts
 2965: 	if ($submitter && $new_part ne $part) { next; }
 2966: 	my $dropMenu = $env{'form.GD_SEL'.$newflg.'_'.$new_part};
 2967: 	if ($dropMenu eq 'excused') {
 2968: 	    if ($record{'resource.'.$new_part.'.solved'} ne 'excused') {
 2969: 		$newrecord{'resource.'.$new_part.'.solved'} = 'excused';
 2970: 		if (exists($record{'resource.'.$new_part.'.awarded'})) {
 2971: 		    $newrecord{'resource.'.$new_part.'.awarded'} = '';
 2972: 		}
 2973: 	        $newrecord{'resource.'.$new_part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 2974: 	    }
 2975: 	} elsif ($dropMenu eq 'reset status'
 2976: 		 && exists($record{'resource.'.$new_part.'.solved'})) { #don't bother if no old records -> no attempts
 2977: 	    foreach my $key (keys(%record)) {
 2978: 		if ($key=~/^resource\.\Q$new_part\E\./) { $newrecord{$key} = ''; }
 2979: 	    }
 2980: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 2981: 		"$env{'user.name'}:$env{'user.domain'}";
 2982:             my $totaltries = $record{'resource.'.$part.'.tries'};
 2983: 
 2984:             my %last_resets = &get_last_resets($symb,$env{'request.course.id'},
 2985: 					       [$new_part]);
 2986:             my $aggtries =$totaltries;
 2987:             if ($last_resets{$new_part}) {
 2988:                 $aggtries = &get_num_tries(\%record,$last_resets{$new_part},
 2989: 					   $new_part);
 2990:             }
 2991: 
 2992:             my $solvedstatus = $record{'resource.'.$new_part.'.solved'};
 2993:             if ($aggtries > 0) {
 2994:                 &decrement_aggs($symb,$new_part,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 2995:                 $aggregateflag = 1;
 2996:             }
 2997: 	} elsif ($dropMenu eq '') {
 2998: 	    $pts = ($env{'form.GD_BOX'.$newflg.'_'.$new_part} ne '' ? 
 2999: 		    $env{'form.GD_BOX'.$newflg.'_'.$new_part} : 
 3000: 		    $env{'form.RADVAL'.$newflg.'_'.$new_part});
 3001: 	    if ($pts eq '' && $env{'form.GD_SEL'.$newflg.'_'.$new_part} eq '') {
 3002: 		next;
 3003: 	    }
 3004: 	    $wgt = $env{'form.WGT'.$newflg.'_'.$new_part} eq '' ? 1 : 
 3005: 		$env{'form.WGT'.$newflg.'_'.$new_part};
 3006: 	    my $partial= $pts/$wgt;
 3007: 	    if ($partial eq $record{'resource.'.$new_part.'.awarded'}) {
 3008: 		#do not update score for part if not changed.
 3009:                 &handback_files($request,$symb,$stuname,$domain,$newflg,$new_part,\%newrecord);
 3010: 		next;
 3011: 	    } else {
 3012: 	        push(@parts_graded,$new_part);
 3013: 	    }
 3014: 	    if ($record{'resource.'.$new_part.'.awarded'} ne $partial) {
 3015: 		$newrecord{'resource.'.$new_part.'.awarded'}  = $partial;
 3016: 	    }
 3017: 	    my $reckey = 'resource.'.$new_part.'.solved';
 3018: 	    if ($partial == 0) {
 3019: 		if ($record{$reckey} ne 'incorrect_by_override') {
 3020: 		    $newrecord{$reckey} = 'incorrect_by_override';
 3021: 		}
 3022: 	    } else {
 3023: 		if ($record{$reckey} ne 'correct_by_override') {
 3024: 		    $newrecord{$reckey} = 'correct_by_override';
 3025: 		}
 3026: 	    }	    
 3027: 	    if ($submitter && 
 3028: 		($record{'resource.'.$new_part.'.submitted_by'} ne $submitter)) {
 3029: 		$newrecord{'resource.'.$new_part.'.submitted_by'} = $submitter;
 3030: 	    }
 3031: 	    $newrecord{'resource.'.$new_part.'.regrader'}=
 3032: 		"$env{'user.name'}:$env{'user.domain'}";
 3033: 	}
 3034: 	# unless problem has been graded, set flag to version the submitted files
 3035: 	unless ($record{'resource.'.$new_part.'.solved'} =~ /^correct_/  || 
 3036: 	        $record{'resource.'.$new_part.'.solved'} eq 'incorrect_by_override' ||
 3037: 	        $dropMenu eq 'reset status')
 3038: 	   {
 3039: 	    push(@version_parts,$new_part);
 3040: 	}
 3041:     }
 3042:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3043:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3044: 
 3045:     if (%newrecord) {
 3046:         if (@version_parts) {
 3047:             my @changed_keys = &version_portfiles(\%record, \@parts_graded, 
 3048:                                 $env{'request.course.id'}, $symb, $domain, $stuname, \@version_parts);
 3049: 	    @newrecord{@changed_keys} = @record{@changed_keys};
 3050: 	    foreach my $new_part (@version_parts) {
 3051: 		&handback_files($request,$symb,$stuname,$domain,$newflg,
 3052: 				$new_part,\%newrecord);
 3053: 	    }
 3054:         }
 3055: 	&Apache::lonnet::cstore(\%newrecord,$symb,
 3056: 				$env{'request.course.id'},$domain,$stuname);
 3057: 	&check_and_remove_from_queue(\@parts,\%record,\%newrecord,$symb,
 3058: 				     $cdom,$cnum,$domain,$stuname);
 3059:     }
 3060:     if ($aggregateflag) {
 3061:         &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3062: 			      $cdom,$cnum);
 3063:     }
 3064:     return ('',$pts,$wgt);
 3065: }
 3066: 
 3067: sub check_and_remove_from_queue {
 3068:     my ($parts,$record,$newrecord,$symb,$cdom,$cnum,$domain,$stuname) = @_;
 3069:     my @ungraded_parts;
 3070:     foreach my $part (@{$parts}) {
 3071: 	if (    $record->{   'resource.'.$part.'.awarded'} eq ''
 3072: 	     && $record->{   'resource.'.$part.'.solved' } ne 'excused'
 3073: 	     && $newrecord->{'resource.'.$part.'.awarded'} eq ''
 3074: 	     && $newrecord->{'resource.'.$part.'.solved' } ne 'excused'
 3075: 		) {
 3076: 	    push(@ungraded_parts, $part);
 3077: 	}
 3078:     }
 3079:     if ( !@ungraded_parts ) {
 3080: 	&Apache::bridgetask::remove_from_queue('gradingqueue',$symb,$cdom,
 3081: 					       $cnum,$domain,$stuname);
 3082:     }
 3083: }
 3084: 
 3085: sub handback_files {
 3086:     my ($request,$symb,$stuname,$domain,$newflg,$new_part,$newrecord) = @_;
 3087:     my $portfolio_root = '/userfiles/portfolio';
 3088:     my $res_error;
 3089:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3090:     if ($res_error) {
 3091:         $request->print('<br />'.&navmap_errormsg().'<br />');
 3092:         return;
 3093:     }
 3094:     my @handedback;
 3095:     my $file_msg;
 3096:     my @part_response_id = &flatten_responseType($responseType);
 3097:     foreach my $part_response_id (@part_response_id) {
 3098:     	my ($part_id,$resp_id) = @{ $part_response_id };
 3099: 	my $part_resp = join('_',@{ $part_response_id });
 3100:         if (($env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'} =~ /^\d+$/) & ($new_part eq $part_id)) {
 3101:             for (my $counter=1; $counter<=$env{'form.'.$newflg.'_'.$part_resp.'_countreturndoc'}; $counter++) {
 3102:                 # if multiple files are uploaded names will be 'returndoc2','returndoc3' 
 3103:                 if ($env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter}) {
 3104:                     my $fname=$env{'form.'.$newflg.'_'.$part_resp.'_returndoc'.$counter.'.filename'};
 3105:                     my ($directory,$answer_file) = 
 3106:                         ($env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter} =~ /^(.*?)([^\/]*)$/);
 3107:                     my ($answer_name,$answer_ver,$answer_ext) =
 3108: 		        &file_name_version_ext($answer_file);
 3109: 		    my ($portfolio_path) = ($directory =~ /^.+$stuname\/portfolio(.*)/);
 3110:                     my $getpropath = 1;
 3111:                     my ($dir_list,$listerror) = 
 3112:                         &Apache::lonnet::dirlist($portfolio_root.$portfolio_path,
 3113:                                                  $domain,$stuname,$getpropath);
 3114: 		    my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3115:                     # fix filename
 3116:                     my ($save_file_name) = (($directory.$answer_name.".$version.".$answer_ext) =~ /^.+\/${stuname}\/(.*)/);
 3117:                     my $result=&Apache::lonnet::finishuserfileupload($stuname,$domain,
 3118:             	                                $newflg.'_'.$part_resp.'_returndoc'.$counter,
 3119:             	                                $save_file_name);
 3120:                     if ($result !~ m|^/uploaded/|) {
 3121:                         $request->print('<br /><span class="LC_error">'.
 3122:                             &mt('An error occurred ([_1]) while trying to upload [_2].',
 3123:                                 $result,$newflg.'_'.$part_resp.'_returndoc'.$counter).
 3124:                                         '</span>');
 3125:                     } else {
 3126:                         # mark the file as read only
 3127:                         push(@handedback,$save_file_name);
 3128: 			if (exists($$newrecord{"resource.$new_part.$resp_id.handback"})) {
 3129: 			    $$newrecord{"resource.$new_part.$resp_id.handback"}.=',';
 3130: 			}
 3131:                         $$newrecord{"resource.$new_part.$resp_id.handback"} .= $save_file_name;
 3132: 			$file_msg.= '<span class="LC_filename"><a href="/uploaded/'."$domain/$stuname/".$save_file_name.'">'.$save_file_name."</a></span> <br />";
 3133:                     }
 3134:                     $request->print('<br />'.&mt('[_1] will be the uploaded filename [_2]','<span class="LC_info">'.$fname.'</span>','<span class="LC_filename">'.$env{'form.'.$newflg.'_'.$part_resp.'_origdoc'.$counter}.'</span>'));
 3135:                 }
 3136:             }
 3137:         }
 3138:     }
 3139:     if (@handedback > 0) {
 3140:         $request->print('<br />');
 3141:         my @what = ($symb,$env{'request.course.id'},'handback');
 3142:         &Apache::lonnet::mark_as_readonly($domain,$stuname,\@handedback,\@what);
 3143:         my $user_lh = &Apache::loncommon::user_lang($stuname,$domain,$env{'request.course.id'});    
 3144:         my ($subject,$message);
 3145:         if (scalar(@handedback) == 1) {
 3146:             $subject = &mt_user($user_lh,'File Handed Back by Instructor');
 3147:             $message = &mt_user($user_lh,'A file has been returned that was originally submitted in response to: ');
 3148:         } else {
 3149:             $subject = &mt_user($user_lh,'Files Handed Back by Instructor');
 3150:             $message = &mt_user($user_lh,'Files have been returned that were originally submitted in response to: ');
 3151:         }
 3152:         $message .= "<p><strong>".&Apache::lonnet::gettitle($symb)." </strong></p>";
 3153:         $message .= &mt_user($user_lh,'The returned file(s) are named: [_1]',"<br />$file_msg <br />").
 3154:                     &mt_user($user_lh,'The file(s) can be found in your [_1]portfolio[_2].','<a href="/adm/portfolio">','</a>');
 3155:         my ($feedurl,$showsymb) =
 3156:             &get_feedurl_and_symb($symb,$domain,$stuname);
 3157:         my $restitle = &Apache::lonnet::gettitle($symb);
 3158:         $subject .= ' '.&mt_user($user_lh,'(File Returned)').' ['.$restitle.']';
 3159:         my $msgstatus =
 3160:              &Apache::lonmsg::user_normal_msg($stuname,$domain,$subject,
 3161:                  $message,undef,$feedurl,undef,undef,undef,$showsymb,
 3162:                  $restitle);
 3163:         if ($msgstatus) {
 3164:             $request->print(&mt('Notification message status: [_1]','<span class="LC_info">'.$msgstatus.'</span>').'<br />');
 3165:         }
 3166:     }
 3167:     return;
 3168: }
 3169: 
 3170: sub get_feedurl_and_symb {
 3171:     my ($symb,$uname,$udom) = @_;
 3172:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3173:     $url = &Apache::lonnet::clutter($url);
 3174:     my $encrypturl=&Apache::lonnet::EXT('resource.0.encrypturl',
 3175: 					$symb,$udom,$uname);
 3176:     if ($encrypturl =~ /^yes$/i) {
 3177: 	&Apache::lonenc::encrypted(\$url,1);
 3178: 	&Apache::lonenc::encrypted(\$symb,1);
 3179:     }
 3180:     return ($url,$symb);
 3181: }
 3182: 
 3183: sub get_submitted_files {
 3184:     my ($udom,$uname,$partid,$respid,$record) = @_;
 3185:     my @files;
 3186:     if ($$record{"resource.$partid.$respid.portfiles"}) {
 3187:         my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
 3188:         foreach my $file (split(',',$$record{"resource.$partid.$respid.portfiles"})) {
 3189:     	    push(@files,$file_url.$file);
 3190:         }
 3191:     }
 3192:     if ($$record{"resource.$partid.$respid.uploadedurl"}) {
 3193:         push(@files,$$record{"resource.$partid.$respid.uploadedurl"});
 3194:     }
 3195:     return (\@files);
 3196: }
 3197: 
 3198: # ----------- Provides number of tries since last reset.
 3199: sub get_num_tries {
 3200:     my ($record,$last_reset,$part) = @_;
 3201:     my $timestamp = '';
 3202:     my $num_tries = 0;
 3203:     if ($$record{'version'}) {
 3204:         for (my $version=$$record{'version'};$version>=1;$version--) {
 3205:             if (exists($$record{$version.':resource.'.$part.'.solved'})) {
 3206:                 $timestamp = $$record{$version.':timestamp'};
 3207:                 if ($timestamp > $last_reset) {
 3208:                     $num_tries ++;
 3209:                 } else {
 3210:                     last;
 3211:                 }
 3212:             }
 3213:         }
 3214:     }
 3215:     return $num_tries;
 3216: }
 3217: 
 3218: # ----------- Determine decrements required in aggregate totals 
 3219: sub decrement_aggs {
 3220:     my ($symb,$part,$aggregate,$aggtries,$totaltries,$solvedstatus) = @_;
 3221:     my %decrement = (
 3222:                         attempts => 0,
 3223:                         users => 0,
 3224:                         correct => 0
 3225:                     );
 3226:     $decrement{'attempts'} = $aggtries;
 3227:     if ($solvedstatus =~ /^correct/) {
 3228:         $decrement{'correct'} = 1;
 3229:     }
 3230:     if ($aggtries == $totaltries) {
 3231:         $decrement{'users'} = 1;
 3232:     }
 3233:     foreach my $type (keys(%decrement)) {
 3234:         $$aggregate{$symb."\0".$part."\0".$type} = -$decrement{$type};
 3235:     }
 3236:     return;
 3237: }
 3238: 
 3239: # ----------- Determine timestamps for last reset of aggregate totals for parts  
 3240: sub get_last_resets {
 3241:     my ($symb,$courseid,$partids) =@_;
 3242:     my %last_resets;
 3243:     my $cdom = $env{'course.'.$courseid.'.domain'};
 3244:     my $cname = $env{'course.'.$courseid.'.num'};
 3245:     my @keys;
 3246:     foreach my $part (@{$partids}) {
 3247: 	push(@keys,"$symb\0$part\0resettime");
 3248:     }
 3249:     my %results=&Apache::lonnet::get('nohist_resourcetracker',\@keys,
 3250: 				     $cdom,$cname);
 3251:     foreach my $part (@{$partids}) {
 3252: 	$last_resets{$part}=$results{"$symb\0$part\0resettime"};
 3253:     }
 3254:     return %last_resets;
 3255: }
 3256: 
 3257: # ----------- Handles creating versions for portfolio files as answers
 3258: sub version_portfiles {
 3259:     my ($record, $parts_graded, $courseid, $symb, $domain, $stu_name, $v_flag) = @_;
 3260:     my $version_parts = join('|',@$v_flag);
 3261:     my @returned_keys;
 3262:     my $parts = join('|', @$parts_graded);
 3263:     my $portfolio_root = '/userfiles/portfolio';
 3264:     foreach my $key (keys(%$record)) {
 3265:         my $new_portfiles;
 3266:         if ($key =~ /^resource\.($version_parts)\./ && $key =~ /\.portfiles$/ ) {
 3267:             my @versioned_portfiles;
 3268:             my @portfiles = split(/\s*,\s*/,$$record{$key});
 3269:             foreach my $file (@portfiles) {
 3270:                 &Apache::lonnet::unmark_as_readonly($domain,$stu_name,[$symb,$env{'request.course.id'}],$file);
 3271:                 my ($directory,$answer_file) =($file =~ /^(.*?)([^\/]*)$/);
 3272: 		my ($answer_name,$answer_ver,$answer_ext) =
 3273: 		    &file_name_version_ext($answer_file);
 3274:                 my $getpropath = 1;    
 3275:                 my ($dir_list,$listerror) = 
 3276:                     &Apache::lonnet::dirlist($portfolio_root.$directory,$domain,
 3277:                                              $stu_name,$getpropath);
 3278:                 my $version = &get_next_version($answer_name,$answer_ext,$dir_list);
 3279:                 my $new_answer = &version_selected_portfile($domain, $stu_name, $directory, $answer_file, $version);
 3280:                 if ($new_answer ne 'problem getting file') {
 3281:                     push(@versioned_portfiles, $directory.$new_answer);
 3282:                     &Apache::lonnet::mark_as_readonly($domain,$stu_name,
 3283:                         [$directory.$new_answer],
 3284:                         [$symb,$env{'request.course.id'},'graded']);
 3285:                 }
 3286:             }
 3287:             $$record{$key} = join(',',@versioned_portfiles);
 3288:             push(@returned_keys,$key);
 3289:         }
 3290:     } 
 3291:     return (@returned_keys);   
 3292: }
 3293: 
 3294: sub get_next_version {
 3295:     my ($answer_name, $answer_ext, $dir_list) = @_;
 3296:     my $version;
 3297:     if (ref($dir_list) eq 'ARRAY') {
 3298:         foreach my $row (@{$dir_list}) {
 3299:             my ($file) = split(/\&/,$row,2);
 3300:             my ($file_name,$file_version,$file_ext) =
 3301: 	        &file_name_version_ext($file);
 3302:             if (($file_name eq $answer_name) && 
 3303: 	        ($file_ext eq $answer_ext)) {
 3304:                      # gets here if filename and extension match, 
 3305:                      # regardless of version
 3306:                 if ($file_version ne '') {
 3307:                     # a versioned file is found  so save it for later
 3308:                     if ($file_version > $version) {
 3309: 		        $version = $file_version;
 3310: 	            }
 3311:                 }
 3312:             }
 3313:         }
 3314:     }
 3315:     $version ++;
 3316:     return($version);
 3317: }
 3318: 
 3319: sub version_selected_portfile {
 3320:     my ($domain,$stu_name,$directory,$file_name,$version) = @_;
 3321:     my ($answer_name,$answer_ver,$answer_ext) =
 3322:         &file_name_version_ext($file_name);
 3323:     my $new_answer;
 3324:     $env{'form.copy'} = &Apache::lonnet::getfile("/uploaded/$domain/$stu_name/portfolio$directory$file_name");
 3325:     if($env{'form.copy'} eq '-1') {
 3326:         $new_answer = 'problem getting file';
 3327:     } else {
 3328:         $new_answer = $answer_name.'.'.$version.'.'.$answer_ext;
 3329:         my $copy_result = &Apache::lonnet::finishuserfileupload(
 3330:                             $stu_name,$domain,'copy',
 3331: 		        '/portfolio'.$directory.$new_answer);
 3332:     }    
 3333:     return ($new_answer);
 3334: }
 3335: 
 3336: sub file_name_version_ext {
 3337:     my ($file)=@_;
 3338:     my @file_parts = split(/\./, $file);
 3339:     my ($name,$version,$ext);
 3340:     if (@file_parts > 1) {
 3341: 	$ext=pop(@file_parts);
 3342: 	if (@file_parts > 1 && $file_parts[-1] =~ /^\d+$/) {
 3343: 	    $version=pop(@file_parts);
 3344: 	}
 3345: 	$name=join('.',@file_parts);
 3346:     } else {
 3347: 	$name=join('.',@file_parts);
 3348:     }
 3349:     return($name,$version,$ext);
 3350: }
 3351: 
 3352: #--------------------------------------------------------------------------------------
 3353: #
 3354: #-------------------------- Next few routines handles grading by section or whole class
 3355: #
 3356: #--- Javascript to handle grading by section or whole class
 3357: sub viewgrades_js {
 3358:     my ($request) = shift;
 3359: 
 3360:     my $alertmsg = &mt('A number equal or greater than 0 is expected. Entered value = ');
 3361:     $request->print(&Apache::lonhtmlcommon::scripttag(<<VIEWJAVASCRIPT));
 3362:    function writePoint(partid,weight,point) {
 3363: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3364: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3365: 	if (point == "textval") {
 3366: 	    point = document.classgrade["TEXTVAL_"+partid].value;
 3367: 	    if (isNaN(point) || parseFloat(point) < 0) {
 3368: 		alert("$alertmsg"+parseFloat(point));
 3369: 		var resetbox = false;
 3370: 		for (var i=0; i<radioButton.length; i++) {
 3371: 		    if (radioButton[i].checked) {
 3372: 			textbox.value = i;
 3373: 			resetbox = true;
 3374: 		    }
 3375: 		}
 3376: 		if (!resetbox) {
 3377: 		    textbox.value = "";
 3378: 		}
 3379: 		return;
 3380: 	    }
 3381: 	    if (parseFloat(point) > parseFloat(weight)) {
 3382: 		var resp = confirm("You entered a value ("+parseFloat(point)+
 3383: 				   ") greater than the weight for the part. Accept?");
 3384: 		if (resp == false) {
 3385: 		    textbox.value = "";
 3386: 		    return;
 3387: 		}
 3388: 	    }
 3389: 	    for (var i=0; i<radioButton.length; i++) {
 3390: 		radioButton[i].checked=false;
 3391: 		if (parseFloat(point) == i) {
 3392: 		    radioButton[i].checked=true;
 3393: 		}
 3394: 	    }
 3395: 
 3396: 	} else {
 3397: 	    textbox.value = parseFloat(point);
 3398: 	}
 3399: 	for (i=0;i<document.classgrade.total.value;i++) {
 3400: 	    var user = document.classgrade["ctr"+i].value;
 3401: 	    user = user.replace(new RegExp(':', 'g'),"_");
 3402: 	    var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3403: 	    var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3404: 	    var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3405: 	    if (saveval != "correct") {
 3406: 		scorename.value = point;
 3407: 		if (selname[0].selected != true) {
 3408: 		    selname[0].selected = true;
 3409: 		}
 3410: 	    }
 3411: 	}
 3412: 	document.classgrade["SELVAL_"+partid][0].selected = true;
 3413:     }
 3414: 
 3415:     function writeRadText(partid,weight) {
 3416: 	var selval   = document.classgrade["SELVAL_"+partid];
 3417: 	var radioButton = document.classgrade["RADVAL_"+partid];
 3418:         var override = document.classgrade["FORCE_"+partid].checked;
 3419: 	var textbox = document.classgrade["TEXTVAL_"+partid];
 3420: 	if (selval[1].selected || selval[2].selected) {
 3421: 	    for (var i=0; i<radioButton.length; i++) {
 3422: 		radioButton[i].checked=false;
 3423: 
 3424: 	    }
 3425: 	    textbox.value = "";
 3426: 
 3427: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3428: 		var user = document.classgrade["ctr"+i].value;
 3429: 		user = user.replace(new RegExp(':', 'g'),"_");
 3430: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3431: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3432: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3433: 		if ((saveval != "correct") || override) {
 3434: 		    scorename.value = "";
 3435: 		    if (selval[1].selected) {
 3436: 			selname[1].selected = true;
 3437: 		    } else {
 3438: 			selname[2].selected = true;
 3439: 			if (Number(document.classgrade["GD_"+user+"_"+partid+"_tries"].value)) 
 3440: 			{document.classgrade["GD_"+user+"_"+partid+"_tries"].value = '0';}
 3441: 		    }
 3442: 		}
 3443: 	    }
 3444: 	} else {
 3445: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3446: 		var user = document.classgrade["ctr"+i].value;
 3447: 		user = user.replace(new RegExp(':', 'g'),"_");
 3448: 		var scorename = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3449: 		var saveval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3450: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3451: 		if ((saveval != "correct") || override) {
 3452: 		    scorename.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3453: 		    selname[0].selected = true;
 3454: 		}
 3455: 	    }
 3456: 	}	    
 3457:     }
 3458: 
 3459:     function changeSelect(partid,user) {
 3460: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3461: 	var textbox = document.classgrade["GD_"+user+'_'+partid+"_awarded"];
 3462: 	var point  = textbox.value;
 3463: 	var weight = document.classgrade["weight_"+partid].value;
 3464: 
 3465: 	if (isNaN(point) || parseFloat(point) < 0) {
 3466: 	    alert("$alertmsg"+parseFloat(point));
 3467: 	    textbox.value = "";
 3468: 	    return;
 3469: 	}
 3470: 	if (parseFloat(point) > parseFloat(weight)) {
 3471: 	    var resp = confirm("You entered a value ("+parseFloat(point)+
 3472: 			       ") greater than the weight of the part. Accept?");
 3473: 	    if (resp == false) {
 3474: 		textbox.value = "";
 3475: 		return;
 3476: 	    }
 3477: 	}
 3478: 	selval[0].selected = true;
 3479:     }
 3480: 
 3481:     function changeOneScore(partid,user) {
 3482: 	var selval = document.classgrade["GD_"+user+'_'+partid+"_solved"];
 3483: 	if (selval[1].selected || selval[2].selected) {
 3484: 	    document.classgrade["GD_"+user+'_'+partid+"_awarded"].value = "";
 3485: 	    if (selval[2].selected) {
 3486: 		document.classgrade["GD_"+user+'_'+partid+"_tries"].value = "0";
 3487: 	    }
 3488:         }
 3489:     }
 3490: 
 3491:     function resetEntry(numpart) {
 3492: 	for (ctpart=0;ctpart<numpart;ctpart++) {
 3493: 	    var partid = document.classgrade["partid_"+ctpart].value;
 3494: 	    var radioButton = document.classgrade["RADVAL_"+partid];
 3495: 	    var textbox = document.classgrade["TEXTVAL_"+partid];
 3496: 	    var selval  = document.classgrade["SELVAL_"+partid];
 3497: 	    for (var i=0; i<radioButton.length; i++) {
 3498: 		radioButton[i].checked=false;
 3499: 
 3500: 	    }
 3501: 	    textbox.value = "";
 3502: 	    selval[0].selected = true;
 3503: 
 3504: 	    for (i=0;i<document.classgrade.total.value;i++) {
 3505: 		var user = document.classgrade["ctr"+i].value;
 3506: 		user = user.replace(new RegExp(':', 'g'),"_");
 3507: 		var resetscore = document.classgrade["GD_"+user+"_"+partid+"_awarded"];
 3508: 		resetscore.value = document.classgrade["GD_"+user+"_"+partid+"_awarded_s"].value;
 3509: 		var resettries = document.classgrade["GD_"+user+"_"+partid+"_tries"];
 3510: 		resettries.value = document.classgrade["GD_"+user+"_"+partid+"_tries_s"].value;
 3511: 		var saveselval   = document.classgrade["GD_"+user+"_"+partid+"_solved_s"].value;
 3512: 		var selname   = document.classgrade["GD_"+user+"_"+partid+"_solved"];
 3513: 		if (saveselval == "excused") {
 3514: 		    if (selname[1].selected == false) { selname[1].selected = true;}
 3515: 		} else {
 3516: 		    if (selname[0].selected == false) {selname[0].selected = true};
 3517: 		}
 3518: 	    }
 3519: 	}
 3520:     }
 3521: 
 3522: VIEWJAVASCRIPT
 3523: }
 3524: 
 3525: #--- show scores for a section or whole class w/ option to change/update a score
 3526: sub viewgrades {
 3527:     my ($request,$symb) = @_;
 3528:     &viewgrades_js($request);
 3529: 
 3530:     #need to make sure we have the correct data for later EXT calls, 
 3531:     #thus invalidate the cache
 3532:     &Apache::lonnet::devalidatecourseresdata(
 3533:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 3534:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 3535:     &Apache::lonnet::clear_EXT_cache_status();
 3536: 
 3537:     my $result='<h3><span class="LC_info">'.&mt('Manual Grading').'</span></h3>';
 3538: 
 3539:     #view individual student submission form - called using Javascript viewOneStudent
 3540:     $result.=&jscriptNform($symb);
 3541: 
 3542:     #beginning of class grading form
 3543:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 3544:     $result.= '<form action="/adm/grades" method="post" name="classgrade">'."\n".
 3545: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 3546: 	'<input type="hidden" name="command" value="editgrades" />'."\n".
 3547: 	&build_section_inputs().
 3548: 	'<input type="hidden" name="Status" value="'.$env{'stu_status'}.'" />'."\n".
 3549: 
 3550:     my ($common_header,$specific_header);
 3551:     if ($env{'form.section'} eq 'all') {
 3552: 	$common_header = &mt('Assign Common Grade to Class');
 3553:         $specific_header = &mt('Assign Grade to Specific Students in Class');
 3554:     } elsif ($env{'form.section'} eq 'none') {
 3555:         $common_header = &mt('Assign Common Grade to Students in no Section');
 3556: 	$specific_header = &mt('Assign Grade to Specific Students in no Section');
 3557:     } else {
 3558:         my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3559:         $common_header = &mt('Assign Common Grade to Students in Section(s) [_1]',$section_display);
 3560: 	$specific_header = &mt('Assign Grade to Specific Students in Section(s) [_1]',$section_display);
 3561:     }
 3562:     $result.= '<h3>'.$common_header.'</h3>'.&Apache::loncommon::start_data_table();
 3563:     #radio buttons/text box for assigning points for a section or class.
 3564:     #handles different parts of a problem
 3565:     my $res_error;
 3566:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 3567:     if ($res_error) {
 3568:         return &navmap_errormsg();
 3569:     }
 3570:     my %weight = ();
 3571:     my $ctsparts = 0;
 3572:     my %seen = ();
 3573:     my @part_response_id = &flatten_responseType($responseType);
 3574:     foreach my $part_response_id (@part_response_id) {
 3575:     	my ($partid,$respid) = @{ $part_response_id };
 3576: 	my $part_resp = join('_',@{ $part_response_id });
 3577: 	next if $seen{$partid};
 3578: 	$seen{$partid}++;
 3579: 	my $handgrade=$$handgrade{$part_resp};
 3580: 	my $wgt = &Apache::lonnet::EXT('resource.'.$partid.'.weight',$symb);
 3581: 	$weight{$partid} = $wgt eq '' ? '1' : $wgt;
 3582: 
 3583: 	my $display_part=&get_display_part($partid,$symb);
 3584: 	my $radio.='<table border="0"><tr>';  
 3585: 	my $ctr = 0;
 3586: 	while ($ctr<=$weight{$partid}) { # display radio buttons in a nice table 10 across
 3587: 	    $radio.= '<td><label><input type="radio" name="RADVAL_'.$partid.'" '.
 3588: 		'onclick="javascript:writePoint(\''.$partid.'\','.$weight{$partid}.
 3589: 		','.$ctr.')" />'.$ctr."</label></td>\n";
 3590: 	    $result.=(($ctr+1)%10 == 0 ? '</tr><tr>' : '');
 3591: 	    $ctr++;
 3592: 	}
 3593: 	$radio.='</tr></table>';
 3594: 	my $line = '<input type="text" name="TEXTVAL_'.
 3595: 	    $partid.'" size="4" '.'onchange="javascript:writePoint(\''.
 3596: 		$partid.'\','.$weight{$partid}.',\'textval\')" /> /'.
 3597: 	    $weight{$partid}.' '.&mt('(problem weight)').'</td>'."\n";
 3598:         $line.= '<td><b>'.&mt('Grade Status').':</b>'.
 3599:             '<select name="SELVAL_'.$partid.'" '.
 3600:             'onchange="javascript:writeRadText(\''.$partid.'\','.
 3601:                 $weight{$partid}.')"> '.
 3602: 	    '<option selected="selected"> </option>'.
 3603: 	    '<option value="excused">'.&mt('excused').'</option>'.
 3604: 	    '<option value="reset status">'.&mt('reset status').'</option>'.
 3605: 	    '</select></td>'.
 3606:             '<td><label><input type="checkbox" name="FORCE_'.$partid.'" />'.&mt('Override "Correct"').'</label>';
 3607: 	$line.='<input type="hidden" name="partid_'.
 3608: 	    $ctsparts.'" value="'.$partid.'" />'."\n";
 3609: 	$line.='<input type="hidden" name="weight_'.
 3610: 	    $partid.'" value="'.$weight{$partid}.'" />'."\n";
 3611: 
 3612: 	$result.=
 3613: 	    &Apache::loncommon::start_data_table_row()."\n".
 3614: 	    '<td><b>'.&mt('Part:').'</b></td><td>'.$display_part.'</td><td><b>'.&mt('Points:').'</b></td><td>'.$radio.'</td><td>'.&mt('or').'</td><td>'.$line.'</td>'.
 3615: 	    &Apache::loncommon::end_data_table_row()."\n";
 3616: 	$ctsparts++;
 3617:     }
 3618:     $result.=&Apache::loncommon::end_data_table()."\n".
 3619: 	'<input type="hidden" name="totalparts" value="'.$ctsparts.'" />';
 3620:     $result.='<input type="button" value="'.&mt('Revert to Default').'" '.
 3621: 	'onclick="javascript:resetEntry('.$ctsparts.');" />';
 3622: 
 3623:     #table listing all the students in a section/class
 3624:     #header of table
 3625:     $result.= '<h3>'.$specific_header.'</h3>'.
 3626:               &Apache::loncommon::start_data_table().
 3627: 	      &Apache::loncommon::start_data_table_header_row().
 3628: 	      '<th>'.&mt('No.').'</th>'.
 3629: 	      '<th>'.&nameUserString('header')."</th>\n";
 3630:     my $partserror;
 3631:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3632:     if ($partserror) {
 3633:         return &navmap_errormsg();
 3634:     }
 3635:     my (undef,undef,$url)=&Apache::lonnet::decode_symb($symb);
 3636:     my @partids = ();
 3637:     foreach my $part (@parts) {
 3638: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 3639:         my $narrowtext = &mt('Tries');
 3640: 	$display =~ s|^Number of Attempts|$narrowtext <br />|; # makes the column narrower
 3641: 	if  (!$display) { $display = &Apache::lonnet::metadata($url,$part.'.name'); }
 3642: 	my ($partid) = &split_part_type($part);
 3643:         push(@partids,$partid);
 3644: #
 3645: # FIXME: Looks like $display looks at English text
 3646: #
 3647: 	my $display_part=&get_display_part($partid,$symb);
 3648: 	if ($display =~ /^Partial Credit Factor/) {
 3649: 	    $result.='<th>'.
 3650: 		&mt('Score Part: [_1][_2](weight = [_3])',
 3651: 		    $display_part,'<br />',$weight{$partid}).'</th>'."\n";
 3652: 	    next;
 3653: 	    
 3654: 	} else {
 3655: 	    if ($display =~ /Problem Status/) {
 3656: 		my $grade_status_mt = &mt('Grade Status');
 3657: 		$display =~ s{Problem Status}{$grade_status_mt<br />};
 3658: 	    }
 3659: 	    my $part_mt = &mt('Part:');
 3660: 	    $display =~s{\[Part: \Q$partid\E\]}{$part_mt $display_part};
 3661: 	}
 3662: 
 3663: 	$result.='<th>'.$display.'</th>'."\n";
 3664:     }
 3665:     $result.=&Apache::loncommon::end_data_table_header_row();
 3666: 
 3667:     my %last_resets = 
 3668: 	&get_last_resets($symb,$env{'request.course.id'},\@partids);
 3669: 
 3670:     #get info for each student
 3671:     #list all the students - with points and grade status
 3672:     my (undef,undef,$fullname) = &getclasslist($env{'form.section'},'1');
 3673:     my $ctr = 0;
 3674:     foreach (sort 
 3675: 	     {
 3676: 		 if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 3677: 		     return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 3678: 		 }
 3679: 		 return $a cmp $b;
 3680: 	     } (keys(%$fullname))) {
 3681: 	$ctr++;
 3682: 	$result.=&viewstudentgrade($symb,$env{'request.course.id'},
 3683: 				   $_,$$fullname{$_},\@parts,\%weight,$ctr,\%last_resets);
 3684:     }
 3685:     $result.=&Apache::loncommon::end_data_table();
 3686:     $result.='<input type="hidden" name="total" value="'.$ctr.'" />'."\n";
 3687:     $result.='<input type="button" value="'.&mt('Save').'" '.
 3688: 	'onclick="javascript:submit();" target="_self" /></form>'."\n";
 3689:     if (scalar(%$fullname) eq 0) {
 3690: 	my $colspan=3+scalar(@parts);
 3691: 	my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3692:         my $stu_status = join(' or ',&Apache::loncommon::get_env_multiple('form.Status'));
 3693: 	$result='<span class="LC_warning">'.
 3694: 	    &mt('There are no students in section(s) [_1] with enrollment status [_2] to modify or grade.',
 3695: 	        $section_display, $stu_status).
 3696: 	    '</span>';
 3697:     }
 3698:     return $result;
 3699: }
 3700: 
 3701: #--- call by previous routine to display each student
 3702: sub viewstudentgrade {
 3703:     my ($symb,$courseid,$student,$fullname,$parts,$weight,$ctr,$last_resets) = @_;
 3704:     my ($uname,$udom) = split(/:/,$student);
 3705:     my %record=&Apache::lonnet::restore($symb,$courseid,$udom,$uname);
 3706:     my %aggregates = (); 
 3707:     my $result=&Apache::loncommon::start_data_table_row().'<td align="right">'.
 3708: 	'<input type="hidden" name="ctr'.($ctr-1).'" value="'.$student.'" />'.
 3709: 	"\n".$ctr.'&nbsp;</td><td>&nbsp;'.
 3710: 	'<a href="javascript:viewOneStudent(\''.$uname.'\',\''.$udom.
 3711: 	'\');" target="_self">'.$fullname.'</a> '.
 3712: 	'<span class="LC_internal_info">('.$uname.($env{'user.domain'} eq $udom ? '' : ':'.$udom).')</span></td>'."\n";
 3713:     $student=~s/:/_/; # colon doen't work in javascript for names
 3714:     foreach my $apart (@$parts) {
 3715: 	my ($part,$type) = &split_part_type($apart);
 3716: 	my $score=$record{"resource.$part.$type"};
 3717:         $result.='<td align="center">';
 3718:         my ($aggtries,$totaltries);
 3719:         unless (exists($aggregates{$part})) {
 3720: 	    $totaltries = $record{'resource.'.$part.'.tries'};
 3721: 
 3722: 	    $aggtries = $totaltries;
 3723:             if ($$last_resets{$part}) {  
 3724:                 $aggtries = &get_num_tries(\%record,$$last_resets{$part},
 3725: 					   $part);
 3726:             }
 3727:             $result.='<input type="hidden" name="'.
 3728:                 'GD_'.$student.'_'.$part.'_aggtries" value="'.$aggtries.'" />'."\n";
 3729:             $result.='<input type="hidden" name="'.
 3730:                 'GD_'.$student.'_'.$part.'_totaltries" value="'.$totaltries.'" />'."\n";
 3731:             $aggregates{$part} = 1;
 3732:         }
 3733: 	if ($type eq 'awarded') {
 3734: 	    my $pts = $score eq '' ? '' : &compute_points($score,$$weight{$part});
 3735: 	    $result.='<input type="hidden" name="'.
 3736: 		'GD_'.$student.'_'.$part.'_awarded_s" value="'.$pts.'" />'."\n";
 3737: 	    $result.='<input type="text" name="'.
 3738: 		'GD_'.$student.'_'.$part.'_awarded" '.
 3739:                 'onchange="javascript:changeSelect(\''.$part.'\',\''.$student.
 3740: 		'\')" value="'.$pts.'" size="4" /></td>'."\n";
 3741: 	} elsif ($type eq 'solved') {
 3742: 	    my ($status,$foo)=split(/_/,$score,2);
 3743: 	    $status = 'nothing' if ($status eq '');
 3744: 	    $result.='<input type="hidden" name="'.'GD_'.$student.'_'.
 3745: 		$part.'_solved_s" value="'.$status.'" />'."\n";
 3746: 	    $result.='&nbsp;<select name="'.
 3747: 		'GD_'.$student.'_'.$part.'_solved" '.
 3748:                 'onchange="javascript:changeOneScore(\''.$part.'\',\''.$student.'\')" >'."\n";
 3749: 	    $result.= (($status eq 'excused') ? '<option> </option><option selected="selected" value="excused">'.&mt('excused').'</option>' 
 3750: 		: '<option selected="selected"> </option><option value="excused">'.&mt('excused').'</option>')."\n";
 3751: 	    $result.='<option value="reset status">'.&mt('reset status').'</option>';
 3752: 	    $result.="</select>&nbsp;</td>\n";
 3753: 	} else {
 3754: 	    $result.='<input type="hidden" name="'.
 3755: 		'GD_'.$student.'_'.$part.'_'.$type.'_s" value="'.$score.'" />'.
 3756: 		    "\n";
 3757: 	    $result.='<input type="text" name="'.
 3758: 		'GD_'.$student.'_'.$part.'_'.$type.'" '.
 3759: 		'value="'.$score.'" size="4" /></td>'."\n";
 3760: 	}
 3761:     }
 3762:     $result.=&Apache::loncommon::end_data_table_row();
 3763:     return $result;
 3764: }
 3765: 
 3766: #--- change scores for all the students in a section/class
 3767: #    record does not get update if unchanged
 3768: sub editgrades {
 3769:     my ($request,$symb) = @_;
 3770: 
 3771:     my $section_display = join (", ",&Apache::loncommon::get_env_multiple('form.section'));
 3772:     my $title='<h2>'.&mt('Current Grade Status').'</h2>';
 3773:     $title.='<h4>'.&mt('<b>Section: </b>[_1]',$section_display).'</h4>'."\n";
 3774: 
 3775:     my $result= &Apache::loncommon::start_data_table().
 3776: 	&Apache::loncommon::start_data_table_header_row().
 3777: 	'<th rowspan="2" valign="middle">'.&mt('No.').'</th>'.
 3778: 	'<th rowspan="2" valign="middle">'.&nameUserString('header')."</th>\n";
 3779:     my %scoreptr = (
 3780: 		    'correct'  =>'correct_by_override',
 3781: 		    'incorrect'=>'incorrect_by_override',
 3782: 		    'excused'  =>'excused',
 3783: 		    'ungraded' =>'ungraded_attempted',
 3784:                     'credited' =>'credit_attempted',
 3785: 		    'nothing'  => '',
 3786: 		    );
 3787:     my ($classlist,undef,$fullname) = &getclasslist($env{'form.section'},'0');
 3788: 
 3789:     my (@partid);
 3790:     my %weight = ();
 3791:     my %columns = ();
 3792:     my ($i,$ctr,$count,$rec_update) = (0,0,0,0);
 3793: 
 3794:     my $partserror;
 3795:     my (@parts) = sort(&getpartlist($symb,\$partserror));
 3796:     if ($partserror) {
 3797:         return &navmap_errormsg();
 3798:     }
 3799:     my $header;
 3800:     while ($ctr < $env{'form.totalparts'}) {
 3801: 	my $partid = $env{'form.partid_'.$ctr};
 3802: 	push(@partid,$partid);
 3803: 	$weight{$partid} = $env{'form.weight_'.$partid};
 3804: 	$ctr++;
 3805:     }
 3806:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 3807:     foreach my $partid (@partid) {
 3808: 	$header .= '<th align="center">'.&mt('Old Score').'</th>'.
 3809: 	    '<th align="center">'.&mt('New Score').'</th>';
 3810: 	$columns{$partid}=2;
 3811: 	foreach my $stores (@parts) {
 3812: 	    my ($part,$type) = &split_part_type($stores);
 3813: 	    if ($part !~ m/^\Q$partid\E/) { next;}
 3814: 	    if ($type eq 'awarded' || $type eq 'solved') { next; }
 3815: 	    my $display=&Apache::lonnet::metadata($url,$stores.'.display');
 3816: 	    $display =~ s/\[Part: \Q$part\E\]//;
 3817:             my $narrowtext = &mt('Tries');
 3818: 	    $display =~ s/Number of Attempts/$narrowtext/;
 3819: 	    $header .= '<th align="center">'.&mt('Old').' '.$display.'</th>'.
 3820: 		'<th align="center">'.&mt('New').' '.$display.'</th>';
 3821: 	    $columns{$partid}+=2;
 3822: 	}
 3823:     }
 3824:     foreach my $partid (@partid) {
 3825: 	my $display_part=&get_display_part($partid,$symb);
 3826: 	$result .= '<th colspan="'.$columns{$partid}.'" align="center">'.
 3827: 	    &mt('Part: [_1] (Weight = [_2])',$display_part,$weight{$partid}).
 3828: 	    '</th>';
 3829: 
 3830:     }
 3831:     $result .= &Apache::loncommon::end_data_table_header_row().
 3832: 	&Apache::loncommon::start_data_table_header_row().
 3833: 	$header.
 3834: 	&Apache::loncommon::end_data_table_header_row();
 3835:     my @noupdate;
 3836:     my ($updateCtr,$noupdateCtr) = (1,1);
 3837:     for ($i=0; $i<$env{'form.total'}; $i++) {
 3838: 	my $line;
 3839: 	my $user = $env{'form.ctr'.$i};
 3840: 	my ($uname,$udom)=split(/:/,$user);
 3841: 	my %newrecord;
 3842: 	my $updateflag = 0;
 3843: 	$line .= '<td>'.&nameUserString(undef,$$fullname{$user},$uname,$udom).'</td>';
 3844: 	my $usec=$classlist->{"$uname:$udom"}[5];
 3845: 	if (!&canmodify($usec)) {
 3846: 	    my $numcols=scalar(@partid)*4+2;
 3847: 	    push(@noupdate,
 3848: 		 $line."<td colspan=\"$numcols\"><span class=\"LC_warning\">".
 3849: 		 &mt('Not allowed to modify student')."</span></td></tr>");
 3850: 	    next;
 3851: 	}
 3852:         my %aggregate = ();
 3853:         my $aggregateflag = 0;
 3854: 	$user=~s/:/_/; # colon doen't work in javascript for names
 3855: 	foreach (@partid) {
 3856: 	    my $old_aw    = $env{'form.GD_'.$user.'_'.$_.'_awarded_s'};
 3857: 	    my $old_part_pcr = $old_aw/($weight{$_} ne '0' ? $weight{$_}:1);
 3858: 	    my $old_part  = $old_aw eq '' ? '' : $old_part_pcr;
 3859: 	    my $old_score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3860: 	    my $awarded   = $env{'form.GD_'.$user.'_'.$_.'_awarded'};
 3861: 	    my $pcr       = $awarded/($weight{$_} ne '0' ? $weight{$_} : 1);
 3862: 	    my $partial   = $awarded eq '' ? '' : $pcr;
 3863: 	    my $score;
 3864: 	    if ($partial eq '') {
 3865: 		$score = $scoreptr{$env{'form.GD_'.$user.'_'.$_.'_solved_s'}};
 3866: 	    } elsif ($partial > 0) {
 3867: 		$score = 'correct_by_override';
 3868: 	    } elsif ($partial == 0) {
 3869: 		$score = 'incorrect_by_override';
 3870: 	    }
 3871: 	    my $dropMenu = $env{'form.GD_'.$user.'_'.$_.'_solved'};
 3872: 	    $score = 'excused' if (($dropMenu eq 'excused') && ($score ne 'excused'));
 3873: 
 3874: 	    $newrecord{'resource.'.$_.'.regrader'}=
 3875: 		"$env{'user.name'}:$env{'user.domain'}";
 3876: 	    if ($dropMenu eq 'reset status' &&
 3877: 		$old_score ne '') { # ignore if no previous attempts => nothing to reset
 3878: 		$newrecord{'resource.'.$_.'.tries'} = '';
 3879: 		$newrecord{'resource.'.$_.'.solved'} = '';
 3880: 		$newrecord{'resource.'.$_.'.award'} = '';
 3881: 		$newrecord{'resource.'.$_.'.awarded'} = '';
 3882: 		$updateflag = 1;
 3883:                 if ($env{'form.GD_'.$user.'_'.$_.'_aggtries'} > 0) {
 3884:                     my $aggtries = $env{'form.GD_'.$user.'_'.$_.'_aggtries'};
 3885:                     my $totaltries = $env{'form.GD_'.$user.'_'.$_.'_totaltries'};
 3886:                     my $solvedstatus = $env{'form.GD_'.$user.'_'.$_.'_solved_s'};
 3887:                     &decrement_aggs($symb,$_,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 3888:                     $aggregateflag = 1;
 3889:                 }
 3890: 	    } elsif (!($old_part eq $partial && $old_score eq $score)) {
 3891: 		$updateflag = 1;
 3892: 		$newrecord{'resource.'.$_.'.awarded'}  = $partial if $partial ne '';
 3893: 		$newrecord{'resource.'.$_.'.solved'}   = $score;
 3894: 		$rec_update++;
 3895: 	    }
 3896: 
 3897: 	    $line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3898: 		'<td align="center">'.$awarded.
 3899: 		($score eq 'excused' ? $score : '').'&nbsp;</td>';
 3900: 
 3901: 
 3902: 	    my $partid=$_;
 3903: 	    foreach my $stores (@parts) {
 3904: 		my ($part,$type) = &split_part_type($stores);
 3905: 		if ($part !~ m/^\Q$partid\E/) { next;}
 3906: 		if ($type eq 'awarded' || $type eq 'solved') { next; }
 3907: 		my $old_aw    = $env{'form.GD_'.$user.'_'.$part.'_'.$type.'_s'};
 3908: 		my $awarded   = $env{'form.GD_'.$user.'_'.$part.'_'.$type};
 3909: 		if ($awarded ne '' && $awarded ne $old_aw) {
 3910: 		    $newrecord{'resource.'.$part.'.'.$type}= $awarded;
 3911: 		    $newrecord{'resource.'.$part.'.regrader'}="$env{'user.name'}:$env{'user.domain'}";
 3912: 		    $updateflag=1;
 3913: 		}
 3914: 		$line .= '<td align="center">'.$old_aw.'&nbsp;</td>'.
 3915: 		    '<td align="center">'.$awarded.'&nbsp;</td>';
 3916: 	    }
 3917: 	}
 3918: 	$line.="\n";
 3919: 
 3920: 	my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 3921: 	my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 3922: 
 3923: 	if ($updateflag) {
 3924: 	    $count++;
 3925: 	    &Apache::lonnet::cstore(\%newrecord,$symb,$env{'request.course.id'},
 3926: 				    $udom,$uname);
 3927: 
 3928: 	    if (&Apache::bridgetask::in_queue('gradingqueue',$symb,$cdom,
 3929: 					      $cnum,$udom,$uname)) {
 3930: 		# need to figure out if should be in queue.
 3931: 		my %record =  
 3932: 		    &Apache::lonnet::restore($symb,$env{'request.course.id'},
 3933: 					     $udom,$uname);
 3934: 		my $all_graded = 1;
 3935: 		my $none_graded = 1;
 3936: 		foreach my $part (@parts) {
 3937: 		    if ( $record{'resource.'.$part.'.awarded'} eq '' ) {
 3938: 			$all_graded = 0;
 3939: 		    } else {
 3940: 			$none_graded = 0;
 3941: 		    }
 3942: 		}
 3943: 
 3944: 		if ($all_graded || $none_graded) {
 3945: 		    &Apache::bridgetask::remove_from_queue('gradingqueue',
 3946: 							   $symb,$cdom,$cnum,
 3947: 							   $udom,$uname);
 3948: 		}
 3949: 	    }
 3950: 
 3951: 	    $result.=&Apache::loncommon::start_data_table_row().
 3952: 		'<td align="right">&nbsp;'.$updateCtr.'&nbsp;</td>'.$line.
 3953: 		&Apache::loncommon::end_data_table_row();
 3954: 	    $updateCtr++;
 3955: 	} else {
 3956: 	    push(@noupdate,
 3957: 		 '<td align="right">&nbsp;'.$noupdateCtr.'&nbsp;</td>'.$line);
 3958: 	    $noupdateCtr++;
 3959: 	}
 3960:         if ($aggregateflag) {
 3961:             &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 3962: 				  $cdom,$cnum);
 3963:         }
 3964:     }
 3965:     if (@noupdate) {
 3966: #	my $numcols=(scalar(@partid)*(scalar(@parts)-1)*2)+3;
 3967: 	my $numcols=scalar(@partid)*4+2;
 3968: 	$result .= &Apache::loncommon::start_data_table_row('LC_empty_row').
 3969: 	    '<td align="center" colspan="'.$numcols.'">'.
 3970: 	    &mt('No Changes Occurred For the Students Below').
 3971: 	    '</td>'.
 3972: 	    &Apache::loncommon::end_data_table_row();
 3973: 	foreach my $line (@noupdate) {
 3974: 	    $result.=
 3975: 		&Apache::loncommon::start_data_table_row().
 3976: 		$line.
 3977: 		&Apache::loncommon::end_data_table_row();
 3978: 	}
 3979:     }
 3980:     $result .= &Apache::loncommon::end_data_table();
 3981:     my $msg = '<p><b>'.
 3982: 	&mt('Number of records updated = [_1] for [quant,_2,student].',
 3983: 	    $rec_update,$count).'</b><br />'.
 3984: 	'<b>'.&mt('Total number of students = [_1]',$env{'form.total'}).
 3985: 	'</b></p>';
 3986:     return $title.$msg.$result;
 3987: }
 3988: 
 3989: sub split_part_type {
 3990:     my ($partstr) = @_;
 3991:     my ($temp,@allparts)=split(/_/,$partstr);
 3992:     my $type=pop(@allparts);
 3993:     my $part=join('_',@allparts);
 3994:     return ($part,$type);
 3995: }
 3996: 
 3997: #------------- end of section for handling grading by section/class ---------
 3998: #
 3999: #----------------------------------------------------------------------------
 4000: 
 4001: 
 4002: #----------------------------------------------------------------------------
 4003: #
 4004: #-------------------------- Next few routines handles grading by csv upload
 4005: #
 4006: #--- Javascript to handle csv upload
 4007: sub csvupload_javascript_reverse_associate {
 4008:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4009:     my $error2=&mt('You need to specify at least one grading field');
 4010:   return(<<ENDPICK);
 4011:   function verify(vf) {
 4012:     var foundsomething=0;
 4013:     var founduname=0;
 4014:     var foundID=0;
 4015:     for (i=0;i<=vf.nfields.value;i++) {
 4016:       tw=eval('vf.f'+i+'.selectedIndex');
 4017:       if (i==0 && tw!=0) { foundID=1; }
 4018:       if (i==1 && tw!=0) { founduname=1; }
 4019:       if (i!=0 && i!=1 && i!=2 && tw!=0) { foundsomething=1; }
 4020:     }
 4021:     if (founduname==0 && foundID==0) {
 4022: 	alert('$error1');
 4023: 	return;
 4024:     }
 4025:     if (foundsomething==0) {
 4026: 	alert('$error2');
 4027: 	return;
 4028:     }
 4029:     vf.submit();
 4030:   }
 4031:   function flip(vf,tf) {
 4032:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4033:     var i;
 4034:     for (i=0;i<=vf.nfields.value;i++) {
 4035:       //can not pick the same destination field for both name and domain
 4036:       if (((i ==0)||(i ==1)) && 
 4037:           ((tf==0)||(tf==1)) && 
 4038:           (i!=tf) &&
 4039:           (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4040:         eval('vf.f'+i+'.selectedIndex=0;')
 4041:       }
 4042:     }
 4043:   }
 4044: ENDPICK
 4045: }
 4046: 
 4047: sub csvupload_javascript_forward_associate {
 4048:     my $error1=&mt('You need to specify the username or the student/employee ID');
 4049:     my $error2=&mt('You need to specify at least one grading field');
 4050:   return(<<ENDPICK);
 4051:   function verify(vf) {
 4052:     var foundsomething=0;
 4053:     var founduname=0;
 4054:     var foundID=0;
 4055:     for (i=0;i<=vf.nfields.value;i++) {
 4056:       tw=eval('vf.f'+i+'.selectedIndex');
 4057:       if (tw==1) { foundID=1; }
 4058:       if (tw==2) { founduname=1; }
 4059:       if (tw>3) { foundsomething=1; }
 4060:     }
 4061:     if (founduname==0 && foundID==0) {
 4062: 	alert('$error1');
 4063: 	return;
 4064:     }
 4065:     if (foundsomething==0) {
 4066: 	alert('$error2');
 4067: 	return;
 4068:     }
 4069:     vf.submit();
 4070:   }
 4071:   function flip(vf,tf) {
 4072:     var nw=eval('vf.f'+tf+'.selectedIndex');
 4073:     var i;
 4074:     //can not pick the same destination field twice
 4075:     for (i=0;i<=vf.nfields.value;i++) {
 4076:       if ((i!=tf) && (eval('vf.f'+i+'.selectedIndex')==nw)) {
 4077:         eval('vf.f'+i+'.selectedIndex=0;')
 4078:       }
 4079:     }
 4080:   }
 4081: ENDPICK
 4082: }
 4083: 
 4084: sub csvuploadmap_header {
 4085:     my ($request,$symb,$datatoken,$distotal)= @_;
 4086:     my $javascript;
 4087:     if ($env{'form.upfile_associate'} eq 'reverse') {
 4088: 	$javascript=&csvupload_javascript_reverse_associate();
 4089:     } else {
 4090: 	$javascript=&csvupload_javascript_forward_associate();
 4091:     }
 4092: 
 4093:     $symb = &Apache::lonenc::check_encrypt($symb);
 4094:     $request->print('<form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">'.
 4095:                     &mt('Total number of records found in file: [_1]',$distotal).'<hr />'.
 4096:                     &mt('Associate entries from the uploaded file with as many fields as you can.'));
 4097:     my $reverse=&mt("Reverse Association");
 4098:     $request->print(<<ENDPICK);
 4099: <br />
 4100: <input type="button" value="$reverse" onclick="javascript:this.form.associate.value='Reverse Association';submit(this.form);" />
 4101: <input type="hidden" name="associate"  value="" />
 4102: <input type="hidden" name="phase"      value="three" />
 4103: <input type="hidden" name="datatoken"  value="$datatoken" />
 4104: <input type="hidden" name="fileupload" value="$env{'form.fileupload'}" />
 4105: <input type="hidden" name="upfiletype" value="$env{'form.upfiletype'}" />
 4106: <input type="hidden" name="upfile_associate" 
 4107:                                        value="$env{'form.upfile_associate'}" />
 4108: <input type="hidden" name="symb"       value="$symb" />
 4109: <input type="hidden" name="command"    value="csvuploadoptions" />
 4110: <hr />
 4111: ENDPICK
 4112:     $request->print(&Apache::lonhtmlcommon::scripttag($javascript));
 4113:     return '';
 4114: 
 4115: }
 4116: 
 4117: sub csvupload_fields {
 4118:     my ($symb,$errorref) = @_;
 4119:     my (@parts) = &getpartlist($symb,$errorref);
 4120:     if (ref($errorref)) {
 4121:         if ($$errorref) {
 4122:             return;
 4123:         }
 4124:     }
 4125: 
 4126:     my @fields=(['ID','Student/Employee ID'],
 4127: 		['username','Student Username'],
 4128: 		['domain','Student Domain']);
 4129:     my (undef,undef,$url) = &Apache::lonnet::decode_symb($symb);
 4130:     foreach my $part (sort(@parts)) {
 4131: 	my @datum;
 4132: 	my $display=&Apache::lonnet::metadata($url,$part.'.display');
 4133: 	my $name=$part;
 4134: 	if  (!$display) { $display = $name; }
 4135: 	@datum=($name,$display);
 4136: 	if ($name=~/^stores_(.*)_awarded/) {
 4137: 	    push(@fields,['stores_'.$1.'_points',"Points [Part: $1]"]);
 4138: 	}
 4139: 	push(@fields,\@datum);
 4140:     }
 4141:     return (@fields);
 4142: }
 4143: 
 4144: sub csvuploadmap_footer {
 4145:     my ($request,$i,$keyfields) =@_;
 4146:     $request->print(<<ENDPICK);
 4147: </table>
 4148: <input type="hidden" name="nfields" value="$i" />
 4149: <input type="hidden" name="keyfields" value="$keyfields" />
 4150: <input type="button" onclick="javascript:verify(this.form)" value="Assign Grades" /><br />
 4151: </form>
 4152: ENDPICK
 4153: }
 4154: 
 4155: sub checkforfile_js {
 4156:     my $alertmsg = &mt('Please use the browse button to select a file from your local directory.');
 4157:     my $result = &Apache::lonhtmlcommon::scripttag(<<CSVFORMJS);
 4158:     function checkUpload(formname) {
 4159: 	if (formname.upfile.value == "") {
 4160: 	    alert("$alertmsg");
 4161: 	    return false;
 4162: 	}
 4163: 	formname.submit();
 4164:     }
 4165: CSVFORMJS
 4166:     return $result;
 4167: }
 4168: 
 4169: sub upcsvScores_form {
 4170:     my ($request,$symb) = @_;
 4171:     if (!$symb) {return '';}
 4172:     my $result=&checkforfile_js();
 4173:     $result.=&Apache::loncommon::start_data_table().
 4174:              &Apache::loncommon::start_data_table_header_row().
 4175:              '<th>'.&mt('Specify a file containing the class scores for current resource.').'</th>'.
 4176:              &Apache::loncommon::end_data_table_header_row().
 4177:              &Apache::loncommon::start_data_table_row().'<td>';
 4178:     my $upload=&mt("Upload Scores");
 4179:     my $upfile_select=&Apache::loncommon::upfile_select_html();
 4180:     my $ignore=&mt('Ignore First Line');
 4181:     $symb = &Apache::lonenc::check_encrypt($symb);
 4182:     $result.=<<ENDUPFORM;
 4183: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4184: <input type="hidden" name="symb" value="$symb" />
 4185: <input type="hidden" name="command" value="csvuploadmap" />
 4186: $upfile_select
 4187: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 4188: </form>
 4189: ENDUPFORM
 4190:     $result.=&Apache::loncommon::help_open_topic("Course_Convert_To_CSV",
 4191:                            &mt("How do I create a CSV file from a spreadsheet")).
 4192:              '</td>'.
 4193:             &Apache::loncommon::end_data_table_row().
 4194:             &Apache::loncommon::end_data_table();
 4195:     return $result;
 4196: }
 4197: 
 4198: 
 4199: sub csvuploadmap {
 4200:     my ($request,$symb)= @_;
 4201:     if (!$symb) {return '';}
 4202: 
 4203:     my $datatoken;
 4204:     if (!$env{'form.datatoken'}) {
 4205: 	$datatoken=&Apache::loncommon::upfile_store($request);
 4206:     } else {
 4207: 	$datatoken=$env{'form.datatoken'};
 4208: 	&Apache::loncommon::load_tmp_file($request);
 4209:     }
 4210:     my @records=&Apache::loncommon::upfile_record_sep();
 4211:     &csvuploadmap_header($request,$symb,$datatoken,$#records+1);
 4212:     my ($i,$keyfields);
 4213:     if (@records) {
 4214:         my $fieldserror;
 4215: 	my @fields=&csvupload_fields($symb,\$fieldserror);
 4216:         if ($fieldserror) {
 4217:             $request->print(&navmap_errormsg());
 4218:             return;
 4219:         }
 4220: 	if ($env{'form.upfile_associate'} eq 'reverse') {	
 4221: 	    &Apache::loncommon::csv_print_samples($request,\@records);
 4222: 	    $i=&Apache::loncommon::csv_print_select_table($request,\@records,
 4223: 							  \@fields);
 4224: 	    foreach (@fields) { $keyfields.=$_->[0].','; }
 4225: 	    chop($keyfields);
 4226: 	} else {
 4227: 	    unshift(@fields,['none','']);
 4228: 	    $i=&Apache::loncommon::csv_samples_select_table($request,\@records,
 4229: 							    \@fields);
 4230:             foreach my $rec (@records) {
 4231:                 my %temp = &Apache::loncommon::record_sep($rec);
 4232:                 if (%temp) {
 4233:                     $keyfields=join(',',sort(keys(%temp)));
 4234:                     last;
 4235:                 }
 4236:             }
 4237: 	}
 4238:     }
 4239:     &csvuploadmap_footer($request,$i,$keyfields);
 4240: 
 4241:     return '';
 4242: }
 4243: 
 4244: sub csvuploadoptions {
 4245:     my ($request,$symb)= @_;
 4246:     my $overwrite=&mt('Overwrite any existing score');
 4247:     $request->print(<<ENDPICK);
 4248: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 4249: <input type="hidden" name="command"    value="csvuploadassign" />
 4250: <p>
 4251: <label>
 4252:    <input type="checkbox" name="overwite_scores" checked="checked" />
 4253:    $overwrite
 4254: </label>
 4255: </p>
 4256: ENDPICK
 4257:     my %fields=&get_fields();
 4258:     if (!defined($fields{'domain'})) {
 4259: 	my $domform = &Apache::loncommon::select_dom_form($env{'request.role.domain'},'default_domain');
 4260: 	$request->print("\n<p>".&mt('Users are in domain: [_1]',$domform)."</p>\n");
 4261:     }
 4262:     foreach my $key (sort(keys(%env))) {
 4263: 	if ($key !~ /^form\.(.*)$/) { next; }
 4264: 	my $cleankey=$1;
 4265: 	if ($cleankey eq 'command') { next; }
 4266: 	$request->print('<input type="hidden" name="'.$cleankey.
 4267: 			'"  value="'.$env{$key}.'" />'."\n");
 4268:     }
 4269:     # FIXME do a check for any duplicated user ids...
 4270:     # FIXME do a check for any invalid user ids?...
 4271:     $request->print('<input type="submit" value="Assign Grades" /><br />
 4272: <hr /></form>'."\n");
 4273:     return '';
 4274: }
 4275: 
 4276: sub get_fields {
 4277:     my %fields;
 4278:     my @keyfields = split(/\,/,$env{'form.keyfields'});
 4279:     for (my $i=0; $i<=$env{'form.nfields'}; $i++) {
 4280: 	if ($env{'form.upfile_associate'} eq 'reverse') {
 4281: 	    if ($env{'form.f'.$i} ne 'none') {
 4282: 		$fields{$keyfields[$i]}=$env{'form.f'.$i};
 4283: 	    }
 4284: 	} else {
 4285: 	    if ($env{'form.f'.$i} ne 'none') {
 4286: 		$fields{$env{'form.f'.$i}}=$keyfields[$i];
 4287: 	    }
 4288: 	}
 4289:     }
 4290:     return %fields;
 4291: }
 4292: 
 4293: sub csvuploadassign {
 4294:     my ($request,$symb)= @_;
 4295:     if (!$symb) {return '';}
 4296:     my $error_msg = '';
 4297:     &Apache::loncommon::load_tmp_file($request);
 4298:     my @gradedata = &Apache::loncommon::upfile_record_sep();
 4299:     my %fields=&get_fields();
 4300:     my $courseid=$env{'request.course.id'};
 4301:     my ($classlist) = &getclasslist('all',0);
 4302:     my @notallowed;
 4303:     my @skipped;
 4304:     my @warnings;
 4305:     my $countdone=0;
 4306:     foreach my $grade (@gradedata) {
 4307: 	my %entries=&Apache::loncommon::record_sep($grade);
 4308: 	my $domain;
 4309: 	if ($entries{$fields{'domain'}}) {
 4310: 	    $domain=$entries{$fields{'domain'}};
 4311: 	} else {
 4312: 	    $domain=$env{'form.default_domain'};
 4313: 	}
 4314: 	$domain=~s/\s//g;
 4315: 	my $username=$entries{$fields{'username'}};
 4316: 	$username=~s/\s//g;
 4317: 	if (!$username) {
 4318: 	    my $id=$entries{$fields{'ID'}};
 4319: 	    $id=~s/\s//g;
 4320: 	    my %ids=&Apache::lonnet::idget($domain,$id);
 4321: 	    $username=$ids{$id};
 4322: 	}
 4323: 	if (!exists($$classlist{"$username:$domain"})) {
 4324: 	    my $id=$entries{$fields{'ID'}};
 4325: 	    $id=~s/\s//g;
 4326: 	    if ($id) {
 4327: 		push(@skipped,"$id:$domain");
 4328: 	    } else {
 4329: 		push(@skipped,"$username:$domain");
 4330: 	    }
 4331: 	    next;
 4332: 	}
 4333: 	my $usec=$classlist->{"$username:$domain"}[5];
 4334: 	if (!&canmodify($usec)) {
 4335: 	    push(@notallowed,"$username:$domain");
 4336: 	    next;
 4337: 	}
 4338: 	my %points;
 4339: 	my %grades;
 4340: 	foreach my $dest (keys(%fields)) {
 4341: 	    if ($dest eq 'ID' || $dest eq 'username' ||
 4342: 		$dest eq 'domain') { next; }
 4343: 	    if ($entries{$fields{$dest}} =~ /^\s*$/) { next; }
 4344: 	    if ($dest=~/stores_(.*)_points/) {
 4345: 		my $part=$1;
 4346: 		my $wgt =&Apache::lonnet::EXT('resource.'.$part.'.weight',
 4347: 					      $symb,$domain,$username);
 4348:                 if ($wgt) {
 4349:                     $entries{$fields{$dest}}=~s/\s//g;
 4350:                     my $pcr=$entries{$fields{$dest}} / $wgt;
 4351:                     my $award=($pcr == 0) ? 'incorrect_by_override'
 4352:                                           : 'correct_by_override';
 4353:                     if ($pcr>1) {
 4354:                        push(@warnings,&mt("[_1]: point value larger than weight","$username:$domain"));
 4355:                     }
 4356:                     $grades{"resource.$part.awarded"}=$pcr;
 4357:                     $grades{"resource.$part.solved"}=$award;
 4358:                     $points{$part}=1;
 4359:                 } else {
 4360:                     $error_msg = "<br />" .
 4361:                         &mt("Some point values were assigned"
 4362:                             ." for problems with a weight "
 4363:                             ."of zero. These values were "
 4364:                             ."ignored.");
 4365:                 }
 4366: 	    } else {
 4367: 		if ($dest=~/stores_(.*)_awarded/) { if ($points{$1}) {next;} }
 4368: 		if ($dest=~/stores_(.*)_solved/)  { if ($points{$1}) {next;} }
 4369: 		my $store_key=$dest;
 4370: 		$store_key=~s/^stores/resource/;
 4371: 		$store_key=~s/_/\./g;
 4372: 		$grades{$store_key}=$entries{$fields{$dest}};
 4373: 	    }
 4374: 	}
 4375: 	if (! %grades) { 
 4376:            push(@skipped,&mt("[_1]: no data to save","$username:$domain")); 
 4377:         } else {
 4378: 	   $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
 4379: 	   my $result=&Apache::lonnet::cstore(\%grades,$symb,
 4380: 					   $env{'request.course.id'},
 4381: 					   $domain,$username);
 4382: 	   if ($result eq 'ok') {
 4383: # Successfully stored
 4384: 	      $request->print('.');
 4385: # Remove from grading queue
 4386:               &Apache::bridgetask::remove_from_queue('gradingqueue',$symb,
 4387:                                              $env{'course.'.$env{'request.course.id'}.'.domain'},
 4388:                                              $env{'course.'.$env{'request.course.id'}.'.num'},
 4389:                                              $domain,$username);
 4390:               $countdone++;
 4391:            } else {
 4392: 	      $request->print("<p><span class=\"LC_error\">".
 4393:                               &mt("Failed to save data for student [_1]. Message when trying to save was: [_2]",
 4394:                                   "$username:$domain",$result)."</span></p>");
 4395: 	   }
 4396: 	   $request->rflush();
 4397:         }
 4398:     }
 4399:     $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt("Saved scores for [quant,_1,student]",$countdone),$countdone==0));
 4400:     if (@warnings) {
 4401:         $request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Warnings generated for the following saved scores:'),1).'<br />');
 4402:         $request->print(join(', ',@warnings));
 4403:     }
 4404:     if (@skipped) {
 4405: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('No scores stored for the following username(s):'),1).'<br />');
 4406:         $request->print(join(', ',@skipped));
 4407:     }
 4408:     if (@notallowed) {
 4409: 	$request->print('<br />'.&Apache::lonhtmlcommon::confirm_success(&mt('Modification of scores not allowed for the following username(s):'),1).'<br />');
 4410: 	$request->print(join(', ',@notallowed));
 4411:     }
 4412:     $request->print("<br />\n");
 4413:     return $error_msg;
 4414: }
 4415: #------------- end of section for handling csv file upload ---------
 4416: #
 4417: #-------------------------------------------------------------------
 4418: #
 4419: #-------------- Next few routines handle grading by page/sequence
 4420: #
 4421: #--- Select a page/sequence and a student to grade
 4422: sub pickStudentPage {
 4423:     my ($request,$symb) = @_;
 4424: 
 4425:     my $alertmsg = &mt('Please select the student you wish to grade.');
 4426:     $request->print(&Apache::lonhtmlcommon::scripttag(<<LISTJAVASCRIPT));
 4427: 
 4428: function checkPickOne(formname) {
 4429:     if (radioSelection(formname.student) == null) {
 4430: 	alert("$alertmsg");
 4431: 	return;
 4432:     }
 4433:     ptr = pullDownSelection(formname.selectpage);
 4434:     formname.page.value = formname["page"+ptr].value;
 4435:     formname.title.value = formname["title"+ptr].value;
 4436:     formname.submit();
 4437: }
 4438: 
 4439: LISTJAVASCRIPT
 4440:     &commonJSfunctions($request);
 4441: 
 4442:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4443:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4444:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4445: 
 4446:     my $result='<h3><span class="LC_info">&nbsp;'.
 4447: 	&mt('Manual Grading by Page or Sequence').'</span></h3>';
 4448: 
 4449:     $result.='<form action="/adm/grades" method="post" name="displayPage">'."\n";
 4450:     my $map_error;
 4451:     my ($titles,$symbx) = &getSymbMap($map_error);
 4452:     if ($map_error) {
 4453:         $request->print(&navmap_errormsg());
 4454:         return; 
 4455:     }
 4456:     my ($curpage) =&Apache::lonnet::decode_symb($symb); 
 4457: #    my ($curpage,$mapId) =&Apache::lonnet::decode_symb($symb); 
 4458: #    my $type=($curpage =~ /\.(page|sequence)/);
 4459: 
 4460:     # Collection of hidden fields
 4461:     my $ctr=0;
 4462:     foreach (@$titles) {
 4463:         my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4464:         $result.='<input type="hidden" name="page'.$ctr.'" value="'.$$symbx{$_}.'" />'."\n";
 4465:         $result.='<input type="hidden" name="title'.$ctr.'" value="'.$showtitle.'" />'."\n";
 4466:         $ctr++;
 4467:     }
 4468:     $result.='<input type="hidden" name="page" />'."\n".
 4469:         '<input type="hidden" name="title" />'."\n";
 4470: 
 4471:     $result.=&build_section_inputs();
 4472:     my $stu_status = join(':',&Apache::loncommon::get_env_multiple('form.Status'));
 4473:     $result.='<input type="hidden" name="Status"  value="'.$stu_status.'" />'."\n".
 4474: 	'<input type="hidden" name="command" value="displayPage" />'."\n".
 4475: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 4476: 
 4477:     # Show grading options
 4478:     $result.=&Apache::lonhtmlcommon::start_pick_box();
 4479:     my $select = '<select name="selectpage">'."\n";
 4480:     $ctr=0;
 4481:     foreach (@$titles) {
 4482: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 4483: 	$select.='<option value="'.$ctr.'"'.
 4484: 	    ($$symbx{$_} =~ /$curpage$/ ? ' selected="selected"' : '').
 4485: 	    '>'.$showtitle.'</option>'."\n";
 4486: 	$ctr++;
 4487:     }
 4488:     $select.= '</select>';
 4489: 
 4490:     $result.=
 4491:         &Apache::lonhtmlcommon::row_title(&mt('Problems from'))
 4492:        .$select
 4493:        .&Apache::lonhtmlcommon::row_closure();
 4494: 
 4495:     $result.=
 4496:         &Apache::lonhtmlcommon::row_title(&mt('View Problem Text'))
 4497:        .'<label><input type="radio" name="vProb" value="no"'
 4498:            .' checked="checked" /> '.&mt('no').' </label>'."\n"
 4499:        .'<label><input type="radio" name="vProb" value="yes" />'
 4500:            .&mt('yes').'</label>'."\n"
 4501:        .&Apache::lonhtmlcommon::row_closure();
 4502: 
 4503:     $result.=
 4504:         &Apache::lonhtmlcommon::row_title(&mt('View Submissions'))
 4505:        .'<label><input type="radio" name="lastSub" value="none" /> '
 4506:            .&mt('none').' </label>'."\n"
 4507:        .'<label><input type="radio" name="lastSub" value="datesub"'
 4508:            .' checked="checked" /> '.&mt('all submissions').'</label>'."\n"
 4509:        .'<label><input type="radio" name="lastSub" value="all" /> '
 4510:            .&mt('all submissions with details').' </label>'
 4511:        .&Apache::lonhtmlcommon::row_closure();
 4512:     
 4513:     $result.=
 4514:         &Apache::lonhtmlcommon::row_title(&mt('Use CODE'))
 4515:        .'<input type="text" name="CODE" value="" />'
 4516:        .&Apache::lonhtmlcommon::row_closure(1)
 4517:        .&Apache::lonhtmlcommon::end_pick_box();
 4518: 
 4519:     # Show list of students to select for grading
 4520:     $result.='<br /><input type="button" '.
 4521:              'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /><br />'."\n";
 4522: 
 4523:     $request->print($result);
 4524: 
 4525:     my $studentTable.='&nbsp;<b>'.&mt('Select a student you wish to grade and then click on the Next button.').'</b><br />'.
 4526: 	&Apache::loncommon::start_data_table().
 4527: 	&Apache::loncommon::start_data_table_header_row().
 4528: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4529: 	'<th>'.&nameUserString('header').'</th>'.
 4530: 	'<th align="right">&nbsp;'.&mt('No.').'</th>'.
 4531: 	'<th>'.&nameUserString('header').'</th>'.
 4532: 	&Apache::loncommon::end_data_table_header_row();
 4533:  
 4534:     my (undef,undef,$fullname) = &getclasslist($getsec,'1');
 4535:     my $ptr = 1;
 4536:     foreach my $student (sort 
 4537: 			 {
 4538: 			     if (lc($$fullname{$a}) ne lc($$fullname{$b})) {
 4539: 				 return (lc($$fullname{$a}) cmp lc($$fullname{$b}));
 4540: 			     }
 4541: 			     return $a cmp $b;
 4542: 			 } (keys(%$fullname))) {
 4543: 	my ($uname,$udom) = split(/:/,$student);
 4544: 	$studentTable.=($ptr%2==1 ? &Apache::loncommon::start_data_table_row()
 4545:                                   : '</td>');
 4546: 	$studentTable.='<td align="right">'.$ptr.'&nbsp;</td>';
 4547: 	$studentTable.='<td>&nbsp;<label><input type="radio" name="student" value="'.$student.'" /> '
 4548: 	    .&nameUserString(undef,$$fullname{$student},$uname,$udom)."</label>\n";
 4549: 	$studentTable.=
 4550: 	    ($ptr%2 == 0 ? '</td>'.&Apache::loncommon::end_data_table_row() 
 4551:                          : '');
 4552: 	$ptr++;
 4553:     }
 4554:     if ($ptr%2 == 0) {
 4555: 	$studentTable.='</td><td>&nbsp;</td><td>&nbsp;</td>'.
 4556: 	    &Apache::loncommon::end_data_table_row();
 4557:     }
 4558:     $studentTable.=&Apache::loncommon::end_data_table()."\n";
 4559:     $studentTable.='<input type="button" '.
 4560:                    'onclick="javascript:checkPickOne(this.form);" value="'.&mt('Next').' &rarr;" /></form>'."\n";
 4561: 
 4562:     $request->print($studentTable);
 4563: 
 4564:     return '';
 4565: }
 4566: 
 4567: sub getSymbMap {
 4568:     my ($map_error) = @_;
 4569:     my $navmap = Apache::lonnavmaps::navmap->new();
 4570:     unless (ref($navmap)) {
 4571:         if (ref($map_error)) {
 4572:             $$map_error = 'navmap';
 4573:         }
 4574:         return;
 4575:     }
 4576:     my %symbx = ();
 4577:     my @titles = ();
 4578:     my $minder = 0;
 4579: 
 4580:     # Gather every sequence that has problems.
 4581:     my @sequences = $navmap->retrieveResources(undef, sub { shift->is_map(); },
 4582: 					       1,0,1);
 4583:     for my $sequence ($navmap->getById('0.0'), @sequences) {
 4584: 	if ($navmap->hasResource($sequence, sub { shift->is_problem(); }, 0) ) {
 4585: 	    my $title = $minder.'.'.
 4586: 		&HTML::Entities::encode($sequence->compTitle(),'"\'&');
 4587: 	    push(@titles, $title); # minder in case two titles are identical
 4588: 	    $symbx{$title} = &HTML::Entities::encode($sequence->symb(),'"\'&');
 4589: 	    $minder++;
 4590: 	}
 4591:     }
 4592:     return \@titles,\%symbx;
 4593: }
 4594: 
 4595: #
 4596: #--- Displays a page/sequence w/wo problems, w/wo submissions
 4597: sub displayPage {
 4598:     my ($request,$symb) = @_;
 4599:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4600:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4601:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4602:     my $pageTitle = $env{'form.page'};
 4603:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4604:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4605:     my $usec=$classlist->{$env{'form.student'}}[5];
 4606: 
 4607:     #need to make sure we have the correct data for later EXT calls, 
 4608:     #thus invalidate the cache
 4609:     &Apache::lonnet::devalidatecourseresdata(
 4610:                  $env{'course.'.$env{'request.course.id'}.'.num'},
 4611:                  $env{'course.'.$env{'request.course.id'}.'.domain'});
 4612:     &Apache::lonnet::clear_EXT_cache_status();
 4613: 
 4614:     if (!&canview($usec)) {
 4615: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested student. ([_1])',$env{'form.student'}).'</span>');
 4616: 	return;
 4617:     }
 4618:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4619:     $result.='<h3>&nbsp;'.&mt('Student: [_1]',&nameUserString(undef,$$fullname{$env{'form.student'}},$uname,$udom)).
 4620: 	'</h3>'."\n";
 4621:     $env{'form.CODE'} = uc($env{'form.CODE'});
 4622:     if (&Apache::lonnet::validCODE(uc($env{'form.CODE'}))) {
 4623: 	$result.='<h3>&nbsp;'.&mt('CODE: [_1]',$env{'form.CODE'}).'</h3>'."\n";
 4624:     } else {
 4625: 	delete($env{'form.CODE'});
 4626:     }
 4627:     &sub_page_js($request);
 4628:     $request->print($result);
 4629: 
 4630:     my $navmap = Apache::lonnavmaps::navmap->new();
 4631:     unless (ref($navmap)) {
 4632:         $request->print(&navmap_errormsg());
 4633:         return;
 4634:     }
 4635:     my ($mapUrl, $id, $resUrl)=&Apache::lonnet::decode_symb($env{'form.page'});
 4636:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4637:     if (!$map) {
 4638: 	$request->print('<span class="LC_warning">'.&mt('Unable to view requested sequence. ([_1])',$resUrl).'</span>');
 4639: 	return; 
 4640:     }
 4641:     my $iterator = $navmap->getIterator($map->map_start(),
 4642: 					$map->map_finish());
 4643: 
 4644:     my $studentTable='<form action="/adm/grades" method="post" name="gradePage">'."\n".
 4645: 	'<input type="hidden" name="command" value="gradeByPage" />'."\n".
 4646: 	'<input type="hidden" name="fullname" value="'.$$fullname{$env{'form.student'}}.'" />'."\n".
 4647: 	'<input type="hidden" name="student" value="'.$env{'form.student'}.'" />'."\n".
 4648: 	'<input type="hidden" name="page"    value="'.$pageTitle.'" />'."\n".
 4649: 	'<input type="hidden" name="title"   value="'.$env{'form.title'}.'" />'."\n".
 4650: 	'<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n".
 4651: 	'<input type="hidden" name="overRideScore" value="no" />'."\n";
 4652: 
 4653:     if (defined($env{'form.CODE'})) {
 4654: 	$studentTable.=
 4655: 	    '<input type="hidden" name="CODE" value="'.$env{'form.CODE'}.'" />'."\n";
 4656:     }
 4657:     my $checkIcon = '<img alt="'.&mt('Check Mark').
 4658: 	'" src="'.&Apache::loncommon::lonhttpdurl($request->dir_config('lonIconsURL').'/check.gif').'" height="16" border="0" />';
 4659: 
 4660:     $studentTable.='&nbsp;<span class="LC_info">'.
 4661:         &mt('Problems graded correct by the computer are marked with a [_1] symbol.',$checkIcon).
 4662:         '</span>'."\n".
 4663: 	&Apache::loncommon::start_data_table().
 4664: 	&Apache::loncommon::start_data_table_header_row().
 4665: 	'<th>'.&mt('Prob.').'</th>'.
 4666: 	'<th>&nbsp;'.($env{'form.vProb'} eq 'no' ? &mt('Title') : &mt('Problem Text')).'/'.&mt('Grade').'</th>'.
 4667: 	&Apache::loncommon::end_data_table_header_row();
 4668: 
 4669:     &Apache::lonxml::clear_problem_counter();
 4670:     my ($depth,$question,$prob) = (1,1,1);
 4671:     $iterator->next(); # skip the first BEGIN_MAP
 4672:     my $curRes = $iterator->next(); # for "current resource"
 4673:     while ($depth > 0) {
 4674:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4675:         if($curRes == $iterator->END_MAP) { $depth--; }
 4676: 
 4677:         if (ref($curRes) && $curRes->is_problem()) {
 4678: 	    my $parts = $curRes->parts();
 4679:             my $title = $curRes->compTitle();
 4680: 	    my $symbx = $curRes->symb();
 4681: 	    $studentTable.=
 4682: 		&Apache::loncommon::start_data_table_row().
 4683: 		'<td align="center" valign="top" >'.$prob.
 4684: 		(scalar(@{$parts}) == 1 ? '' 
 4685: 		                        : '<br />('.&mt('[_1]parts',
 4686: 							scalar(@{$parts}).'&nbsp;').')'
 4687: 		 ).
 4688: 		 '</td>';
 4689: 	    $studentTable.='<td valign="top">';
 4690: 	    my %form = ('CODE' => $env{'form.CODE'},);
 4691: 	    if ($env{'form.vProb'} eq 'yes' ) {
 4692: 		$studentTable.=&show_problem($request,$symbx,$uname,$udom,1,
 4693: 					     undef,'both',\%form);
 4694: 	    } else {
 4695: 		my $companswer = &Apache::loncommon::get_student_answers($symbx,$uname,$udom,$env{'request.course.id'},%form);
 4696: 		$companswer =~ s|<form(.*?)>||g;
 4697: 		$companswer =~ s|</form>||g;
 4698: #		while ($companswer =~ /(<a href\=\"javascript:newWindow.*?Script Vars<\/a>)/s) { #<a href="javascript:newWindow</a>
 4699: #		    $companswer =~ s/$1/ /ms;
 4700: #		    $request->print('match='.$1."<br />\n");
 4701: #		}
 4702: #		$companswer =~ s|<table border=\"1\">|<table border=\"0\">|g;
 4703: 		$studentTable.='&nbsp;<b>'.$title.'</b>&nbsp;<br />&nbsp;<b>'.&mt('Correct answer').':</b><br />'.$companswer;
 4704: 	    }
 4705: 
 4706: 	    my %record = &Apache::lonnet::restore($symbx,$env{'request.course.id'},$udom,$uname);
 4707: 
 4708: 	    if ($env{'form.lastSub'} eq 'datesub') {
 4709: 		if ($record{'version'} eq '') {
 4710: 		    $studentTable.='<br />&nbsp;<span class="LC_warning">'.&mt('No recorded submission for this problem.').'</span><br />';
 4711: 		} else {
 4712: 		    my %responseType = ();
 4713: 		    foreach my $partid (@{$parts}) {
 4714: 			my @responseIds =$curRes->responseIds($partid);
 4715: 			my @responseType =$curRes->responseType($partid);
 4716: 			my %responseIds;
 4717: 			for (my $i=0;$i<=$#responseIds;$i++) {
 4718: 			    $responseIds{$responseIds[$i]}=$responseType[$i];
 4719: 			}
 4720: 			$responseType{$partid} = \%responseIds;
 4721: 		    }
 4722: 		    $studentTable.= &displaySubByDates($symbx,\%record,$parts,\%responseType,$checkIcon,$uname,$udom);
 4723: 
 4724: 		}
 4725: 	    } elsif ($env{'form.lastSub'} eq 'all') {
 4726: 		my $last = ($env{'form.lastSub'} eq 'last' ? 'last' : '');
 4727: 		$studentTable.=&Apache::loncommon::get_previous_attempt($symbx,$uname,$udom,
 4728: 									$env{'request.course.id'},
 4729: 									'','.submission');
 4730:  
 4731: 	    }
 4732: 	    if (&canmodify($usec)) {
 4733:             $studentTable.=&gradeBox_start();
 4734: 		foreach my $partid (@{$parts}) {
 4735: 		    $studentTable.=&gradeBox($request,$symbx,$uname,$udom,$question,$partid,\%record);
 4736: 		    $studentTable.='<input type="hidden" name="q_'.$question.'" value="'.$partid.'" />'."\n";
 4737: 		    $question++;
 4738: 		}
 4739:             $studentTable.=&gradeBox_end();
 4740: 		$prob++;
 4741: 	    }
 4742: 	    $studentTable.='</td></tr>';
 4743: 
 4744: 	}
 4745:         $curRes = $iterator->next();
 4746:     }
 4747: 
 4748:     $studentTable.=
 4749:         '</table>'."\n".
 4750:         '<input type="button" value="'.&mt('Save').'" '.
 4751:         'onclick="javascript:checkSubmitPage(this.form,'.$question.');" />'.
 4752:         '</form>'."\n";
 4753:     $request->print($studentTable);
 4754: 
 4755:     return '';
 4756: }
 4757: 
 4758: sub displaySubByDates {
 4759:     my ($symb,$record,$parts,$responseType,$checkIcon,$uname,$udom) = @_;
 4760:     my $isCODE=0;
 4761:     my $isTask = ($symb =~/\.task$/);
 4762:     if (exists($record->{'resource.CODE'})) { $isCODE=1; }
 4763:     my $studentTable=&Apache::loncommon::start_data_table().
 4764: 	&Apache::loncommon::start_data_table_header_row().
 4765: 	'<th>'.&mt('Date/Time').'</th>'.
 4766: 	($isCODE?'<th>'.&mt('CODE').'</th>':'').
 4767:         ($isTask?'<th>'.&mt('Version').'</th>':'').
 4768: 	'<th>'.&mt('Submission').'</th>'.
 4769: 	'<th>'.&mt('Status').'</th>'.
 4770: 	&Apache::loncommon::end_data_table_header_row();
 4771:     my ($version);
 4772:     my %mark;
 4773:     my %orders;
 4774:     $mark{'correct_by_student'} = $checkIcon;
 4775:     if (!exists($$record{'1:timestamp'})) {
 4776: 	return '<br />&nbsp;<span class="LC_warning">'.&mt('Nothing submitted - no attempts.').'</span><br />';
 4777:     }
 4778: 
 4779:     my $interaction;
 4780:     my $no_increment = 1;
 4781:     my %lastrndseed;
 4782:     for ($version=1;$version<=$$record{'version'};$version++) {
 4783: 	my $timestamp = 
 4784: 	    &Apache::lonlocal::locallocaltime($$record{$version.':timestamp'});
 4785: 	if (exists($$record{$version.':resource.0.version'})) {
 4786: 	    $interaction = $$record{$version.':resource.0.version'};
 4787: 	}
 4788:         if ($isTask && $env{'form.previousversion'}) {
 4789:             next unless ($interaction == $env{'form.previousversion'});
 4790:         }
 4791: 	my $where = ($isTask ? "$version:resource.$interaction"
 4792: 		             : "$version:resource");
 4793: 	$studentTable.=&Apache::loncommon::start_data_table_row().
 4794: 	    '<td>'.$timestamp.'</td>';
 4795: 	if ($isCODE) {
 4796: 	    $studentTable.='<td>'.$record->{$version.':resource.CODE'}.'</td>';
 4797: 	}
 4798:         if ($isTask) {
 4799:             $studentTable.='<td>'.$interaction.'</td>';
 4800:         }
 4801: 	my @versionKeys = split(/\:/,$$record{$version.':keys'});
 4802: 	my @displaySub = ();
 4803: 	foreach my $partid (@{$parts}) {
 4804:             my ($hidden,$type);
 4805:             $type = $$record{$version.':resource.'.$partid.'.type'};
 4806:             if (($type eq 'anonsurvey') || ($type eq 'anonsurveycred')) {
 4807:                 $hidden = 1;
 4808:             }
 4809: 	    my @matchKey = ($isTask ? sort(grep /^resource\.\d+\.\Q$partid\E\.award$/,@versionKeys)
 4810: 			            : sort(grep /^resource\.\Q$partid\E\..*?\.submission$/,@versionKeys));
 4811: 	    
 4812: #	    next if ($$record{"$version:resource.$partid.solved"} eq '');
 4813: 	    my $display_part=&get_display_part($partid,$symb);
 4814: 	    foreach my $matchKey (@matchKey) {
 4815: 		if (exists($$record{$version.':'.$matchKey}) &&
 4816: 		    $$record{$version.':'.$matchKey} ne '') {
 4817:                     
 4818: 		    my ($responseId)= ($isTask ? ($matchKey=~ /^resource\.(.*?)\.\Q$partid\E\.award$/)
 4819: 				               : ($matchKey=~ /^resource\.\Q$partid\E\.(.*?)\.submission$/));
 4820:                     $displaySub[0].='<span class="LC_nobreak">';
 4821:                     $displaySub[0].='<b>'.&mt('Part: [_1]',$display_part).'</b>'
 4822:                                    .' <span class="LC_internal_info">'
 4823:                                    .'('.&mt('Response ID: [_1]',$responseId).')'
 4824:                                    .'</span>'
 4825:                                    .' <b>';
 4826:                     if ($hidden) {
 4827:                         $displaySub[0].= &mt('Anonymous Survey').'</b>';
 4828:                     } else {
 4829:                         my ($trial,$rndseed,$newvariation);
 4830:                         if ($type eq 'randomizetry') {
 4831:                             $trial = $$record{"$where.$partid.tries"};
 4832:                             $rndseed = $$record{"$where.$partid.rndseed"};
 4833:                         }
 4834: 		        if ($$record{"$where.$partid.tries"} eq '') {
 4835: 			    $displaySub[0].=&mt('Trial not counted');
 4836: 		        } else {
 4837: 			    $displaySub[0].=&mt('Trial: [_1]',
 4838: 					    $$record{"$where.$partid.tries"});
 4839:                             if ($rndseed || $lastrndseed{$partid}) {
 4840:                                 if ($rndseed ne $lastrndseed{$partid}) {
 4841:                                     $newvariation = '&nbsp;('.&mt('New variation this try').')';
 4842:                                 }
 4843:                             }
 4844:                             $lastrndseed{$partid} = $rndseed;
 4845: 		        }
 4846: 		        my $responseType=($isTask ? 'Task'
 4847:                                               : $responseType->{$partid}->{$responseId});
 4848: 		        if (!exists($orders{$partid})) { $orders{$partid}={}; }
 4849: 		        if ((!exists($orders{$partid}->{$responseId})) || ($trial)) {
 4850: 			    $orders{$partid}->{$responseId}=
 4851: 			        &get_order($partid,$responseId,$symb,$uname,$udom,
 4852:                                            $no_increment,$type,$trial,$rndseed);
 4853: 		        }
 4854: 		        $displaySub[0].='</b>'.$newvariation.'</span>'; # /nobreak
 4855: 		        $displaySub[0].='&nbsp; '.
 4856: 			    &cleanRecord($$record{$version.':'.$matchKey},$responseType,$symb,$partid,$responseId,$record,$orders{$partid}->{$responseId},"$version:",$uname,$udom,$type,$trial,$rndseed).'<br />';
 4857:                     }
 4858: 		}
 4859: 	    }
 4860: 	    if (exists($$record{"$where.$partid.checkedin"})) {
 4861: 		$displaySub[1].=&mt('Checked in by [_1] into slot [_2]',
 4862: 				    $$record{"$where.$partid.checkedin"},
 4863: 				    $$record{"$where.$partid.checkedin.slot"}).
 4864: 					'<br />';
 4865: 	    }
 4866: 	    if (exists $$record{"$where.$partid.award"}) {
 4867: 		$displaySub[1].='<b>'.&mt('Part:').'</b>&nbsp;'.$display_part.' &nbsp;'.
 4868: 		    lc($$record{"$where.$partid.award"}).' '.
 4869: 		    $mark{$$record{"$where.$partid.solved"}}.
 4870: 		    '<br />';
 4871: 	    }
 4872: 	    if (exists $$record{"$where.$partid.regrader"}) {
 4873: 		$displaySub[2].=$$record{"$where.$partid.regrader"}.
 4874: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4875: 	    } elsif ($$record{"$version:resource.$partid.regrader"} =~ /\S/) {
 4876: 		$displaySub[2].=
 4877: 		    $$record{"$version:resource.$partid.regrader"}.
 4878: 		    ' (<b>'.&mt('Part').':</b> '.$display_part.')';
 4879: 	    }
 4880: 	}
 4881: 	# needed because old essay regrader has not parts info
 4882: 	if (exists $$record{"$version:resource.regrader"}) {
 4883: 	    $displaySub[2].=$$record{"$version:resource.regrader"};
 4884: 	}
 4885: 	$studentTable.='<td>'.$displaySub[0].'&nbsp;</td><td>'.$displaySub[1];
 4886: 	if ($displaySub[2]) {
 4887: 	    $studentTable.=&mt('Manually graded by [_1]',$displaySub[2]);
 4888: 	}
 4889: 	$studentTable.='&nbsp;</td>'.
 4890: 	    &Apache::loncommon::end_data_table_row();
 4891:     }
 4892:     $studentTable.=&Apache::loncommon::end_data_table();
 4893:     return $studentTable;
 4894: }
 4895: 
 4896: sub updateGradeByPage {
 4897:     my ($request,$symb) = @_;
 4898: 
 4899:     my $cdom      = $env{"course.$env{'request.course.id'}.domain"};
 4900:     my $cnum      = $env{"course.$env{'request.course.id'}.num"};
 4901:     my $getsec    = $env{'form.section'} eq '' ? 'all' : $env{'form.section'};
 4902:     my $pageTitle = $env{'form.page'};
 4903:     my ($classlist,undef,$fullname) = &getclasslist($getsec,'1');
 4904:     my ($uname,$udom) = split(/:/,$env{'form.student'});
 4905:     my $usec=$classlist->{$env{'form.student'}}[5];
 4906:     if (!&canmodify($usec)) {
 4907: 	$request->print('<span class="LC_warning">'.&mt('Unable to modify requested student ([_1])',$env{'form.student'}).'</span>');
 4908: 	return;
 4909:     }
 4910:     my $result='<h3><span class="LC_info">&nbsp;'.$env{'form.title'}.'</span></h3>';
 4911:     $result.='<h3>&nbsp;'.&mt('Student: ').&nameUserString(undef,$env{'form.fullname'},$uname,$udom).
 4912: 	'</h3>'."\n";
 4913: 
 4914:     $request->print($result);
 4915: 
 4916: 
 4917:     my $navmap = Apache::lonnavmaps::navmap->new();
 4918:     unless (ref($navmap)) {
 4919:         $request->print(&navmap_errormsg());
 4920:         return;
 4921:     }
 4922:     my ($mapUrl, $id, $resUrl) = &Apache::lonnet::decode_symb( $env{'form.page'});
 4923:     my $map = $navmap->getResourceByUrl($resUrl); # add to navmaps
 4924:     if (!$map) {
 4925: 	$request->print('<span class="LC_warning">'.&mt('Unable to grade requested sequence ([_1]).',$resUrl).'</span>');
 4926: 	return; 
 4927:     }
 4928:     my $iterator = $navmap->getIterator($map->map_start(),
 4929: 					$map->map_finish());
 4930: 
 4931:     my $studentTable=
 4932: 	&Apache::loncommon::start_data_table().
 4933: 	&Apache::loncommon::start_data_table_header_row().
 4934: 	'<th align="center">&nbsp;'.&mt('Prob.').'&nbsp;</th>'.
 4935: 	'<th>&nbsp;'.&mt('Title').'&nbsp;</th>'.
 4936: 	'<th>&nbsp;'.&mt('Previous Score').'&nbsp;</th>'.
 4937: 	'<th>&nbsp;'.&mt('New Score').'&nbsp;</th>'.
 4938: 	&Apache::loncommon::end_data_table_header_row();
 4939: 
 4940:     $iterator->next(); # skip the first BEGIN_MAP
 4941:     my $curRes = $iterator->next(); # for "current resource"
 4942:     my ($depth,$question,$prob,$changeflag)= (1,1,1,0);
 4943:     while ($depth > 0) {
 4944:         if($curRes == $iterator->BEGIN_MAP) { $depth++; }
 4945:         if($curRes == $iterator->END_MAP) { $depth--; }
 4946: 
 4947:         if (ref($curRes) && $curRes->is_problem()) {
 4948: 	    my $parts = $curRes->parts();
 4949:             my $title = $curRes->compTitle();
 4950: 	    my $symbx = $curRes->symb();
 4951: 	    $studentTable.=
 4952: 		&Apache::loncommon::start_data_table_row().
 4953: 		'<td align="center" valign="top" >'.$prob.
 4954: 		(scalar(@{$parts}) == 1 ? '' 
 4955:                                         : '<br />('.&mt('[quant,_1,part]',scalar(@{$parts}))
 4956: 		.')').'</td>';
 4957: 	    $studentTable.='<td valign="top">&nbsp;<b>'.$title.'</b>&nbsp;</td>';
 4958: 
 4959: 	    my %newrecord=();
 4960: 	    my @displayPts=();
 4961:             my %aggregate = ();
 4962:             my $aggregateflag = 0;
 4963: 	    foreach my $partid (@{$parts}) {
 4964: 		my $newpts = $env{'form.GD_BOX'.$question.'_'.$partid};
 4965: 		my $oldpts = $env{'form.oldpts'.$question.'_'.$partid};
 4966: 
 4967: 		my $wgt = $env{'form.WGT'.$question.'_'.$partid} != 0 ? 
 4968: 		    $env{'form.WGT'.$question.'_'.$partid} : 1;
 4969: 		my $partial = $newpts/$wgt;
 4970: 		my $score;
 4971: 		if ($partial > 0) {
 4972: 		    $score = 'correct_by_override';
 4973: 		} elsif ($newpts ne '') { #empty is taken as 0
 4974: 		    $score = 'incorrect_by_override';
 4975: 		}
 4976: 		my $dropMenu = $env{'form.GD_SEL'.$question.'_'.$partid};
 4977: 		if ($dropMenu eq 'excused') {
 4978: 		    $partial = '';
 4979: 		    $score = 'excused';
 4980: 		} elsif ($dropMenu eq 'reset status'
 4981: 			 && $env{'form.solved'.$question.'_'.$partid} ne '') { #update only if previous record exists
 4982: 		    $newrecord{'resource.'.$partid.'.tries'} = 0;
 4983: 		    $newrecord{'resource.'.$partid.'.solved'} = '';
 4984: 		    $newrecord{'resource.'.$partid.'.award'} = '';
 4985: 		    $newrecord{'resource.'.$partid.'.awarded'} = 0;
 4986: 		    $newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}";
 4987: 		    $changeflag++;
 4988: 		    $newpts = '';
 4989:                     
 4990:                     my $aggtries =  $env{'form.aggtries'.$question.'_'.$partid};
 4991:                     my $totaltries = $env{'form.totaltries'.$question.'_'.$partid};
 4992:                     my $solvedstatus = $env{'form.solved'.$question.'_'.$partid};
 4993:                     if ($aggtries > 0) {
 4994:                         &decrement_aggs($symbx,$partid,\%aggregate,$aggtries,$totaltries,$solvedstatus);
 4995:                         $aggregateflag = 1;
 4996:                     }
 4997: 		}
 4998: 		my $display_part=&get_display_part($partid,$curRes->symb());
 4999: 		my $oldstatus = $env{'form.solved'.$question.'_'.$partid};
 5000: 		$displayPts[0].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5001: 		    (($oldstatus eq 'excused') ? 'excused' : $oldpts).
 5002: 		    '&nbsp;<br />';
 5003: 		$displayPts[1].='&nbsp;<b>'.&mt('Part').':</b> '.$display_part.' = '.
 5004: 		     (($score eq 'excused') ? 'excused' : $newpts).
 5005: 		    '&nbsp;<br />';
 5006: 		$question++;
 5007: 		next if ($dropMenu eq 'reset status' || ($newpts eq $oldpts && $score ne 'excused'));
 5008: 
 5009: 		$newrecord{'resource.'.$partid.'.awarded'}  = $partial if $partial ne '';
 5010: 		$newrecord{'resource.'.$partid.'.solved'}   = $score if $score ne '';
 5011: 		$newrecord{'resource.'.$partid.'.regrader'} = "$env{'user.name'}:$env{'user.domain'}"
 5012: 		    if (scalar(keys(%newrecord)) > 0);
 5013: 
 5014: 		$changeflag++;
 5015: 	    }
 5016: 	    if (scalar(keys(%newrecord)) > 0) {
 5017: 		my %record = 
 5018: 		    &Apache::lonnet::restore($symbx,$env{'request.course.id'},
 5019: 					     $udom,$uname);
 5020: 
 5021: 		if (&Apache::lonnet::validCODE($env{'form.CODE'})) {
 5022: 		    $newrecord{'resource.CODE'} = $env{'form.CODE'};
 5023: 		} elsif (&Apache::lonnet::validCODE($record{'resource.CODE'})) {
 5024: 		    $newrecord{'resource.CODE'} = '';
 5025: 		}
 5026: 		&Apache::lonnet::cstore(\%newrecord,$symbx,$env{'request.course.id'},
 5027: 					$udom,$uname);
 5028: 		%record = &Apache::lonnet::restore($symbx,
 5029: 						   $env{'request.course.id'},
 5030: 						   $udom,$uname);
 5031: 		&check_and_remove_from_queue($parts,\%record,undef,$symbx,
 5032: 					     $cdom,$cnum,$udom,$uname);
 5033: 	    }
 5034: 	    
 5035:             if ($aggregateflag) {
 5036:                 &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
 5037:                       $env{'course.'.$env{'request.course.id'}.'.domain'},
 5038:                       $env{'course.'.$env{'request.course.id'}.'.num'});
 5039:             }
 5040: 
 5041: 	    $studentTable.='<td valign="top">'.$displayPts[0].'</td>'.
 5042: 		'<td valign="top">'.$displayPts[1].'</td>'.
 5043: 		&Apache::loncommon::end_data_table_row();
 5044: 
 5045: 	    $prob++;
 5046: 	}
 5047:         $curRes = $iterator->next();
 5048:     }
 5049: 
 5050:     $studentTable.=&Apache::loncommon::end_data_table();
 5051:     my $grademsg=($changeflag == 0 ? &mt('No score was changed or updated.') :
 5052: 		  &mt('The scores were changed for [quant,_1,problem].',
 5053: 		  $changeflag));
 5054:     $request->print($grademsg.$studentTable);
 5055: 
 5056:     return '';
 5057: }
 5058: 
 5059: #-------- end of section for handling grading by page/sequence ---------
 5060: #
 5061: #-------------------------------------------------------------------
 5062: 
 5063: #-------------------- Bubblesheet (Scantron) Grading -------------------
 5064: #
 5065: #------ start of section for handling grading by page/sequence ---------
 5066: 
 5067: =pod
 5068: 
 5069: =head1 Bubble sheet grading routines
 5070: 
 5071:   For this documentation:
 5072: 
 5073:    'scanline' refers to the full line of characters
 5074:    from the file that we are parsing that represents one entire sheet
 5075: 
 5076:    'bubble line' refers to the data
 5077:    representing the line of bubbles that are on the physical bubblesheet
 5078: 
 5079: 
 5080: The overall process is that a scanned in bubblesheet data is uploaded
 5081: into a course. When a user wants to grade, they select a
 5082: sequence/folder of resources, a file of bubblesheet info, and pick
 5083: one of the predefined configurations for what each scanline looks
 5084: like.
 5085: 
 5086: Next each scanline is checked for any errors of either 'missing
 5087: bubbles' (it's an error because it may have been mis-scanned
 5088: because too light bubbling), 'double bubble' (each bubble line should
 5089: have no more that one letter picked), invalid or duplicated CODE,
 5090: invalid student/employee ID
 5091: 
 5092: If the CODE option is used that determines the randomization of the
 5093: homework problems, either way the student/employee ID is looked up into a
 5094: username:domain.
 5095: 
 5096: During the validation phase the instructor can choose to skip scanlines. 
 5097: 
 5098: After the validation phase, there are now 3 bubblesheet files
 5099: 
 5100:   scantron_original_filename (unmodified original file)
 5101:   scantron_corrected_filename (file where the corrected information has replaced the original information)
 5102:   scantron_skipped_filename (contains the exact text of scanlines that where skipped)
 5103: 
 5104: Also there is a separate hash nohist_scantrondata that contains extra
 5105: correction information that isn't representable in the bubblesheet
 5106: file (see &scantron_getfile() for more information)
 5107: 
 5108: After all scanlines are either valid, marked as valid or skipped, then
 5109: foreach line foreach problem in the picked sequence, an ssi request is
 5110: made that simulates a user submitting their selected letter(s) against
 5111: the homework problem.
 5112: 
 5113: =over 4
 5114: 
 5115: 
 5116: 
 5117: =item defaultFormData
 5118: 
 5119:   Returns html hidden inputs used to hold context/default values.
 5120: 
 5121:  Arguments:
 5122:   $symb - $symb of the current resource 
 5123: 
 5124: =cut
 5125: 
 5126: sub defaultFormData {
 5127:     my ($symb)=@_;
 5128:     return '<input type="hidden" name="symb"    value="'.&Apache::lonenc::check_encrypt($symb).'" />';
 5129: }
 5130: 
 5131: 
 5132: =pod 
 5133: 
 5134: =item getSequenceDropDown
 5135: 
 5136:    Return html dropdown of possible sequences to grade
 5137:  
 5138:  Arguments:
 5139:    $symb - $symb of the current resource
 5140:    $map_error - ref to scalar which will container error if
 5141:                 $navmap object is unavailable in &getSymbMap().
 5142: 
 5143: =cut
 5144: 
 5145: sub getSequenceDropDown {
 5146:     my ($symb,$map_error)=@_;
 5147:     my $result='<select name="selectpage">'."\n";
 5148:     my ($titles,$symbx) = &getSymbMap($map_error);
 5149:     if (ref($map_error)) {
 5150:         return if ($$map_error);
 5151:     }
 5152:     my ($curpage)=&Apache::lonnet::decode_symb($symb); 
 5153:     my $ctr=0;
 5154:     foreach (@$titles) {
 5155: 	my ($minder,$showtitle) = ($_ =~ /(\d+)\.(.*)/);
 5156: 	$result.='<option value="'.$$symbx{$_}.'" '.
 5157: 	    ($$symbx{$_} =~ /$curpage$/ ? 'selected="selected"' : '').
 5158: 	    '>'.$showtitle.'</option>'."\n";
 5159: 	$ctr++;
 5160:     }
 5161:     $result.= '</select>';
 5162:     return $result;
 5163: }
 5164: 
 5165: my %bubble_lines_per_response;     # no. bubble lines for each response.
 5166:                                    # key is zero-based index - 0, 1, 2 ...
 5167: 
 5168: my %first_bubble_line;             # First bubble line no. for each bubble.
 5169: 
 5170: my %subdivided_bubble_lines;       # no. bubble lines for optionresponse, 
 5171:                                    # matchresponse or rankresponse, where 
 5172:                                    # an individual response can have multiple 
 5173:                                    # lines
 5174: 
 5175: my %responsetype_per_response;     # responsetype for each response
 5176: 
 5177: my %masterseq_id_responsenum;      # src_id (e.g., 12.3_0.11 etc.) for each
 5178:                                    # numbered response. Needed when randomorder
 5179:                                    # or randompick are in use. Key is ID, value 
 5180:                                    # is response number.
 5181: 
 5182: # Save and restore the bubble lines array to the form env.
 5183: 
 5184: 
 5185: sub save_bubble_lines {
 5186:     foreach my $line (keys(%bubble_lines_per_response)) {
 5187: 	$env{"form.scantron.bubblelines.$line"}  = $bubble_lines_per_response{$line};
 5188: 	$env{"form.scantron.first_bubble_line.$line"} =
 5189: 	    $first_bubble_line{$line};
 5190:         $env{"form.scantron.sub_bubblelines.$line"} = 
 5191:             $subdivided_bubble_lines{$line};
 5192:         $env{"form.scantron.responsetype.$line"} =
 5193:             $responsetype_per_response{$line};
 5194:     }
 5195:     foreach my $resid (keys(%masterseq_id_responsenum)) {
 5196:         my $line = $masterseq_id_responsenum{$resid};
 5197:         $env{"form.scantron.residpart.$line"} = $resid;
 5198:     }
 5199: }
 5200: 
 5201: 
 5202: sub restore_bubble_lines {
 5203:     my $line = 0;
 5204:     %bubble_lines_per_response = ();
 5205:     %masterseq_id_responsenum = ();
 5206:     while ($env{"form.scantron.bubblelines.$line"}) {
 5207: 	my $value = $env{"form.scantron.bubblelines.$line"};
 5208: 	$bubble_lines_per_response{$line} = $value;
 5209: 	$first_bubble_line{$line}  =
 5210: 	    $env{"form.scantron.first_bubble_line.$line"};
 5211:         $subdivided_bubble_lines{$line} =
 5212:             $env{"form.scantron.sub_bubblelines.$line"};
 5213:         $responsetype_per_response{$line} =
 5214:             $env{"form.scantron.responsetype.$line"};
 5215:         my $id = $env{"form.scantron.residpart.$line"};
 5216:         $masterseq_id_responsenum{$id} = $line;
 5217: 	$line++;
 5218:     }
 5219: }
 5220: 
 5221: =pod 
 5222: 
 5223: =item scantron_filenames
 5224: 
 5225:    Returns a list of the scantron files in the current course 
 5226: 
 5227: =cut
 5228: 
 5229: sub scantron_filenames {
 5230:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 5231:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 5232:     my $getpropath = 1;
 5233:     my ($dirlist,$listerror) = &Apache::lonnet::dirlist('userfiles',$cdom,
 5234:                                                         $cname,$getpropath);
 5235:     my @possiblenames;
 5236:     if (ref($dirlist) eq 'ARRAY') {
 5237:         foreach my $filename (sort(@{$dirlist})) {
 5238: 	    ($filename)=split(/&/,$filename);
 5239: 	    if ($filename!~/^scantron_orig_/) { next ; }
 5240: 	    $filename=~s/^scantron_orig_//;
 5241: 	    push(@possiblenames,$filename);
 5242:         }
 5243:     }
 5244:     return @possiblenames;
 5245: }
 5246: 
 5247: =pod 
 5248: 
 5249: =item scantron_uploads
 5250: 
 5251:    Returns  html drop-down list of scantron files in current course.
 5252: 
 5253:  Arguments:
 5254:    $file2grade - filename to set as selected in the dropdown
 5255: 
 5256: =cut
 5257: 
 5258: sub scantron_uploads {
 5259:     my ($file2grade) = @_;
 5260:     my $result=	'<select name="scantron_selectfile">';
 5261:     $result.="<option></option>";
 5262:     foreach my $filename (sort(&scantron_filenames())) {
 5263: 	$result.="<option".($filename eq $file2grade ? ' selected="selected"':'').">$filename</option>\n";
 5264:     }
 5265:     $result.="</select>";
 5266:     return $result;
 5267: }
 5268: 
 5269: =pod 
 5270: 
 5271: =item scantron_scantab
 5272: 
 5273:   Returns html drop down of the scantron formats in the scantronformat.tab
 5274:   file.
 5275: 
 5276: =cut
 5277: 
 5278: sub scantron_scantab {
 5279:     my $result='<select name="scantron_format">'."\n";
 5280:     $result.='<option></option>'."\n";
 5281:     my @lines = &get_scantronformat_file();
 5282:     if (@lines > 0) {
 5283:         foreach my $line (@lines) {
 5284:             next if (($line =~ /^\#/) || ($line eq ''));
 5285: 	    my ($name,$descrip)=split(/:/,$line);
 5286: 	    $result.='<option value="'.$name.'">'.$descrip.'</option>'."\n";
 5287:         }
 5288:     }
 5289:     $result.='</select>'."\n";
 5290:     return $result;
 5291: }
 5292: 
 5293: =pod
 5294: 
 5295: =item get_scantronformat_file
 5296: 
 5297:   Returns an array containing lines from the scantron format file for
 5298:   the domain of the course.
 5299: 
 5300:   If a url for a custom.tab file is listed in domain's configuration.db, 
 5301:   lines are from this file.
 5302: 
 5303:   Otherwise, if a default.tab has been published in RES space by the 
 5304:   domainconfig user, lines are from this file.
 5305: 
 5306:   Otherwise, fall back to getting lines from the legacy file on the
 5307:   local server:  /home/httpd/lonTabs/default_scantronformat.tab    
 5308: 
 5309: =cut
 5310: 
 5311: sub get_scantronformat_file {
 5312:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5313:     my %domconfig = &Apache::lonnet::get_dom('configuration',['scantron'],$cdom);
 5314:     my $gottab = 0;
 5315:     my @lines;
 5316:     if (ref($domconfig{'scantron'}) eq 'HASH') {
 5317:         if ($domconfig{'scantron'}{'scantronformat'} ne '') {
 5318:             my $formatfile = &Apache::lonnet::getfile($Apache::lonnet::perlvar{'lonDocRoot'}.$domconfig{'scantron'}{'scantronformat'});
 5319:             if ($formatfile ne '-1') {
 5320:                 @lines = split("\n",$formatfile,-1);
 5321:                 $gottab = 1;
 5322:             }
 5323:         }
 5324:     }
 5325:     if (!$gottab) {
 5326:         my $confname = $cdom.'-domainconfig';
 5327:         my $default = $Apache::lonnet::perlvar{'lonDocRoot'}.'/res/'.$cdom.'/'.$confname.'/default.tab';
 5328:         my $formatfile =  &Apache::lonnet::getfile($default);
 5329:         if ($formatfile ne '-1') {
 5330:             @lines = split("\n",$formatfile,-1);
 5331:             $gottab = 1;
 5332:         }
 5333:     }
 5334:     if (!$gottab) {
 5335:         my @domains = &Apache::lonnet::current_machine_domains();
 5336:         if (grep(/^\Q$cdom\E$/,@domains)) {
 5337:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/scantronformat.tab');
 5338:             @lines = <$fh>;
 5339:             close($fh);
 5340:         } else {
 5341:             my $fh=Apache::File->new($Apache::lonnet::perlvar{'lonTabDir'}.'/default_scantronformat.tab');
 5342:             @lines = <$fh>;
 5343:             close($fh);
 5344:         }
 5345:     }
 5346:     return @lines;
 5347: }
 5348: 
 5349: =pod 
 5350: 
 5351: =item scantron_CODElist
 5352: 
 5353:   Returns html drop down of the saved CODE lists from current course,
 5354:   generated from earlier printings.
 5355: 
 5356: =cut
 5357: 
 5358: sub scantron_CODElist {
 5359:     my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
 5360:     my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
 5361:     my @names=&Apache::lonnet::getkeys('CODEs',$cdom,$cnum);
 5362:     my $namechoice='<option></option>';
 5363:     foreach my $name (sort {uc($a) cmp uc($b)} @names) {
 5364: 	if ($name =~ /^error: 2 /) { next; }
 5365: 	if ($name =~ /^type\0/) { next; }
 5366: 	$namechoice.='<option value="'.$name.'">'.$name.'</option>';
 5367:     }
 5368:     $namechoice='<select name="scantron_CODElist">'.$namechoice.'</select>';
 5369:     return $namechoice;
 5370: }
 5371: 
 5372: =pod 
 5373: 
 5374: =item scantron_CODEunique
 5375: 
 5376:   Returns the html for "Each CODE to be used once" radio.
 5377: 
 5378: =cut
 5379: 
 5380: sub scantron_CODEunique {
 5381:     my $result='<span class="LC_nobreak">
 5382:                  <label><input type="radio" name="scantron_CODEunique"
 5383:                         value="yes" checked="checked" />'.&mt('Yes').' </label>
 5384:                 </span>
 5385:                 <span class="LC_nobreak">
 5386:                  <label><input type="radio" name="scantron_CODEunique"
 5387:                         value="no" />'.&mt('No').' </label>
 5388:                 </span>';
 5389:     return $result;
 5390: }
 5391: 
 5392: =pod 
 5393: 
 5394: =item scantron_selectphase
 5395: 
 5396:   Generates the initial screen to start the bubblesheet process.
 5397:   Allows for - starting a grading run.
 5398:              - downloading existing scan data (original, corrected
 5399:                                                 or skipped info)
 5400: 
 5401:              - uploading new scan data
 5402: 
 5403:  Arguments:
 5404:   $r          - The Apache request object
 5405:   $file2grade - name of the file that contain the scanned data to score
 5406: 
 5407: =cut
 5408: 
 5409: sub scantron_selectphase {
 5410:     my ($r,$file2grade,$symb) = @_;
 5411:     if (!$symb) {return '';}
 5412:     my $map_error;
 5413:     my $sequence_selector=&getSequenceDropDown($symb,\$map_error);
 5414:     if ($map_error) {
 5415:         $r->print('<br />'.&navmap_errormsg().'<br />');
 5416:         return;
 5417:     }
 5418:     my $default_form_data=&defaultFormData($symb);
 5419:     my $file_selector=&scantron_uploads($file2grade);
 5420:     my $format_selector=&scantron_scantab();
 5421:     my $CODE_selector=&scantron_CODElist();
 5422:     my $CODE_unique=&scantron_CODEunique();
 5423:     my $result;
 5424: 
 5425:     $ssi_error = 0;
 5426: 
 5427:     if (&Apache::lonnet::allowed('usc',$env{'request.role.domain'}) ||
 5428:         &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
 5429: 
 5430: 	# Chunk of form to prompt for a scantron file upload.
 5431: 
 5432:         $r->print('
 5433:     <br />
 5434:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5435:        '.&Apache::loncommon::start_data_table_header_row().'
 5436:             <th>
 5437:               &nbsp;'.&mt('Specify a bubblesheet data file to upload.').'
 5438:             </th>
 5439:        '.&Apache::loncommon::end_data_table_header_row().'
 5440:        '.&Apache::loncommon::start_data_table_row().'
 5441:             <td>
 5442: ');
 5443:     my $default_form_data=&defaultFormData($symb);
 5444:     my $cdom= $env{'course.'.$env{'request.course.id'}.'.domain'};
 5445:     my $cnum= $env{'course.'.$env{'request.course.id'}.'.num'};
 5446:     $r->print(&Apache::lonhtmlcommon::scripttag('
 5447:     function checkUpload(formname) {
 5448: 	if (formname.upfile.value == "") {
 5449: 	    alert("'.&mt('Please use the browse button to select a file from your local directory.').'");
 5450: 	    return false;
 5451: 	}
 5452: 	formname.submit();
 5453:     }'));
 5454:     $r->print('
 5455:               <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 5456:                 '.$default_form_data.'
 5457:                 <input name="courseid" type="hidden" value="'.$cnum.'" />
 5458:                 <input name="domainid" type="hidden" value="'.$cdom.'" />
 5459:                 <input name="command" value="scantronupload_save" type="hidden" />
 5460:                 '.&mt('File to upload: [_1]','<input type="file" name="upfile" size="50" />').'
 5461:                 <br />
 5462:                 <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 5463:               </form>
 5464: ');
 5465: 
 5466:         $r->print('
 5467:             </td>
 5468:        '.&Apache::loncommon::end_data_table_row().'
 5469:        '.&Apache::loncommon::end_data_table().'
 5470: ');
 5471:     }
 5472: 
 5473:     # Chunk of form to prompt for a file to grade and how:
 5474: 
 5475:     $result.= '
 5476:     <br />
 5477:     <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantron_process">
 5478:     <input type="hidden" name="command" value="scantron_warning" />
 5479:     '.$default_form_data.'
 5480:     '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5481:        '.&Apache::loncommon::start_data_table_header_row().'
 5482:             <th colspan="2">
 5483:               &nbsp;'.&mt('Specify file and which Folder/Sequence to grade').'
 5484:             </th>
 5485:        '.&Apache::loncommon::end_data_table_header_row().'
 5486:        '.&Apache::loncommon::start_data_table_row().'
 5487:             <td> '.&mt('Sequence to grade:').' </td><td> '.$sequence_selector.' </td>
 5488:        '.&Apache::loncommon::end_data_table_row().'
 5489:        '.&Apache::loncommon::start_data_table_row().'
 5490:             <td> '.&mt('Filename of bubblesheet data file:').' </td><td> '.$file_selector.' </td>
 5491:        '.&Apache::loncommon::end_data_table_row().'
 5492:        '.&Apache::loncommon::start_data_table_row().'
 5493:             <td> '.&mt('Format of bubblesheet data file:').' </td><td> '.$format_selector.' </td>
 5494:        '.&Apache::loncommon::end_data_table_row().'
 5495:        '.&Apache::loncommon::start_data_table_row().'
 5496:             <td> '.&mt('Saved CODEs to validate against:').' </td><td> '.$CODE_selector.' </td>
 5497:        '.&Apache::loncommon::end_data_table_row().'
 5498:        '.&Apache::loncommon::start_data_table_row().'
 5499:             <td> '.&mt('Each CODE is only to be used once:').'</td><td> '.$CODE_unique.' </td>
 5500:        '.&Apache::loncommon::end_data_table_row().'
 5501:        '.&Apache::loncommon::start_data_table_row().'
 5502: 	    <td> '.&mt('Options:').' </td>
 5503:             <td>
 5504: 	       <label><input type="checkbox" name="scantron_options_redo" value="redo_skipped"/> '.&mt('Do only previously skipped records').'</label> <br />
 5505:                <label><input type="checkbox" name="scantron_options_ignore" value="ignore_corrections"/> '.&mt('Remove all existing corrections').'</label> <br />
 5506:                <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources when grading').'</label>
 5507: 	    </td>
 5508:        '.&Apache::loncommon::end_data_table_row().'
 5509:        '.&Apache::loncommon::start_data_table_row().'
 5510:             <td colspan="2">
 5511:               <input type="submit" value="'.&mt('Grading: Validate Bubblesheet Records').'" />
 5512:             </td>
 5513:        '.&Apache::loncommon::end_data_table_row().'
 5514:     '.&Apache::loncommon::end_data_table().'
 5515:     </form>
 5516: ';
 5517:    
 5518:     $r->print($result);
 5519: 
 5520: 
 5521: 
 5522:     # Chunk of the form that prompts to view a scoring office file,
 5523:     # corrected file, skipped records in a file.
 5524: 
 5525:     $r->print('
 5526:    <br />
 5527:    <form action="/adm/grades" name="scantron_download">
 5528:      '.$default_form_data.'
 5529:      <input type="hidden" name="command" value="scantron_download" />
 5530:      '.&Apache::loncommon::start_data_table('LC_scantron_action').'
 5531:        '.&Apache::loncommon::start_data_table_header_row().'
 5532:               <th>
 5533:                 &nbsp;'.&mt('Download a scoring office file').'
 5534:               </th>
 5535:        '.&Apache::loncommon::end_data_table_header_row().'
 5536:        '.&Apache::loncommon::start_data_table_row().'
 5537:               <td> '.&mt('Filename of scoring office file: [_1]',$file_selector).' 
 5538:                 <br />
 5539:                 <input type="submit" value="'.&mt('Download: Show List of Associated Files').'" />
 5540:        '.&Apache::loncommon::end_data_table_row().'
 5541:      '.&Apache::loncommon::end_data_table().'
 5542:    </form>
 5543:    <br />
 5544: ');
 5545: 
 5546:     &Apache::lonpickcode::code_list($r,2);
 5547: 
 5548:     $r->print('<br /><form method="post" name="checkscantron" action="">'.
 5549:              $default_form_data."\n".
 5550:              &Apache::loncommon::start_data_table('LC_scantron_action')."\n".
 5551:              &Apache::loncommon::start_data_table_header_row()."\n".
 5552:              '<th colspan="2">
 5553:               &nbsp;'.&mt('Review bubblesheet data and submissions for a previously graded folder/sequence')."\n".
 5554:              '</th>'."\n".
 5555:               &Apache::loncommon::end_data_table_header_row()."\n".
 5556:               &Apache::loncommon::start_data_table_row()."\n".
 5557:               '<td> '.&mt('Graded folder/sequence:').' </td>'."\n".
 5558:               '<td> '.$sequence_selector.' </td>'.
 5559:               &Apache::loncommon::end_data_table_row()."\n".
 5560:               &Apache::loncommon::start_data_table_row()."\n".
 5561:               '<td> '.&mt('Filename of scoring office file:').' </td>'."\n".
 5562:               '<td> '.$file_selector.' </td>'."\n".
 5563:               &Apache::loncommon::end_data_table_row()."\n".
 5564:               &Apache::loncommon::start_data_table_row()."\n".
 5565:               '<td> '.&mt('Format of data file:').' </td>'."\n".
 5566:               '<td> '.$format_selector.' </td>'."\n".
 5567:               &Apache::loncommon::end_data_table_row()."\n".
 5568:               &Apache::loncommon::start_data_table_row()."\n".
 5569:               '<td> '.&mt('Options').' </td>'."\n".
 5570:               '<td> <label><input type="checkbox" name="scantron_options_hidden" value="ignore_hidden"/> '.&mt('Skip hidden resources').'</label></td>'.
 5571:               &Apache::loncommon::end_data_table_row()."\n".
 5572:               &Apache::loncommon::start_data_table_row()."\n".
 5573:               '<td colspan="2">'."\n".
 5574:               '<input type="hidden" name="command" value="checksubmissions" />'."\n".
 5575:               '<input type="submit" value="'.&mt('Review Bubblesheet Data and Submission Records').'" />'."\n".
 5576:               '</td>'."\n".
 5577:               &Apache::loncommon::end_data_table_row()."\n".
 5578:               &Apache::loncommon::end_data_table()."\n".
 5579:               '</form><br />');
 5580:     return;
 5581: }
 5582: 
 5583: =pod
 5584: 
 5585: =item get_scantron_config
 5586: 
 5587:    Parse and return the scantron configuration line selected as a
 5588:    hash of configuration file fields.
 5589: 
 5590:  Arguments:
 5591:     which - the name of the configuration to parse from the file.
 5592: 
 5593: 
 5594:  Returns:
 5595:             If the named configuration is not in the file, an empty
 5596:             hash is returned.
 5597:     a hash with the fields
 5598:       name         - internal name for the this configuration setup
 5599:       description  - text to display to operator that describes this config
 5600:       CODElocation - if 0 or the string 'none'
 5601:                           - no CODE exists for this config
 5602:                      if -1 || the string 'letter'
 5603:                           - a CODE exists for this config and is
 5604:                             a string of letters
 5605:                      Unsupported value (but planned for future support)
 5606:                           if a positive integer
 5607:                                - The CODE exists as the first n items from
 5608:                                  the question section of the form
 5609:                           if the string 'number'
 5610:                                - The CODE exists for this config and is
 5611:                                  a string of numbers
 5612:       CODEstart   - (only matter if a CODE exists) column in the line where
 5613:                      the CODE starts
 5614:       CODElength  - length of the CODE
 5615:       IDstart     - column where the student/employee ID starts
 5616:       IDlength    - length of the student/employee ID info
 5617:       Qstart      - column where the information from the bubbled
 5618:                     'questions' start
 5619:       Qlength     - number of columns comprising a single bubble line from
 5620:                     the sheet. (usually either 1 or 10)
 5621:       Qon         - either a single character representing the character used
 5622:                     to signal a bubble was chosen in the positional setup, or
 5623:                     the string 'letter' if the letter of the chosen bubble is
 5624:                     in the final, or 'number' if a number representing the
 5625:                     chosen bubble is in the file (1->A 0->J)
 5626:       Qoff        - the character used to represent that a bubble was
 5627:                     left blank
 5628:       PaperID     - if the scanning process generates a unique number for each
 5629:                     sheet scanned the column that this ID number starts in
 5630:       PaperIDlength - number of columns that comprise the unique ID number
 5631:                       for the sheet of paper
 5632:       FirstName   - column that the first name starts in
 5633:       FirstNameLength - number of columns that the first name spans
 5634:  
 5635:       LastName    - column that the last name starts in
 5636:       LastNameLength - number of columns that the last name spans
 5637:       BubblesPerRow - number of bubbles available in each row used to 
 5638:                       bubble an answer. (If not specified, 10 assumed).
 5639: 
 5640: =cut
 5641: 
 5642: sub get_scantron_config {
 5643:     my ($which) = @_;
 5644:     my @lines = &get_scantronformat_file();
 5645:     my %config;
 5646:     #FIXME probably should move to XML it has already gotten a bit much now
 5647:     foreach my $line (@lines) {
 5648: 	my ($name,$descrip)=split(/:/,$line);
 5649: 	if ($name ne $which ) { next; }
 5650: 	chomp($line);
 5651: 	my @config=split(/:/,$line);
 5652: 	$config{'name'}=$config[0];
 5653: 	$config{'description'}=$config[1];
 5654: 	$config{'CODElocation'}=$config[2];
 5655: 	$config{'CODEstart'}=$config[3];
 5656: 	$config{'CODElength'}=$config[4];
 5657: 	$config{'IDstart'}=$config[5];
 5658: 	$config{'IDlength'}=$config[6];
 5659: 	$config{'Qstart'}=$config[7];
 5660:  	$config{'Qlength'}=$config[8];
 5661: 	$config{'Qoff'}=$config[9];
 5662: 	$config{'Qon'}=$config[10];
 5663: 	$config{'PaperID'}=$config[11];
 5664: 	$config{'PaperIDlength'}=$config[12];
 5665: 	$config{'FirstName'}=$config[13];
 5666: 	$config{'FirstNamelength'}=$config[14];
 5667: 	$config{'LastName'}=$config[15];
 5668: 	$config{'LastNamelength'}=$config[16];
 5669:         $config{'BubblesPerRow'}=$config[17];
 5670: 	last;
 5671:     }
 5672:     return %config;
 5673: }
 5674: 
 5675: =pod 
 5676: 
 5677: =item username_to_idmap
 5678: 
 5679:     creates a hash keyed by student/employee ID with values of the corresponding
 5680:     student username:domain.
 5681: 
 5682:   Arguments:
 5683: 
 5684:     $classlist - reference to the class list hash. This is a hash
 5685:                  keyed by student name:domain  whose elements are references
 5686:                  to arrays containing various chunks of information
 5687:                  about the student. (See loncoursedata for more info).
 5688: 
 5689:   Returns
 5690:     %idmap - the constructed hash
 5691: 
 5692: =cut
 5693: 
 5694: sub username_to_idmap {
 5695:     my ($classlist)= @_;
 5696:     my %idmap;
 5697:     foreach my $student (keys(%$classlist)) {
 5698: 	$idmap{$classlist->{$student}->[&Apache::loncoursedata::CL_ID]}=
 5699: 	    $student;
 5700:     }
 5701:     return %idmap;
 5702: }
 5703: 
 5704: =pod
 5705: 
 5706: =item scantron_fixup_scanline
 5707: 
 5708:    Process a requested correction to a scanline.
 5709: 
 5710:   Arguments:
 5711:     $scantron_config   - hash from &get_scantron_config()
 5712:     $scan_data         - hash of correction information 
 5713:                           (see &scantron_getfile())
 5714:     $line              - existing scanline
 5715:     $whichline         - line number of the passed in scanline
 5716:     $field             - type of change to process 
 5717:                          (either 
 5718:                           'ID'     -> correct the student/employee ID
 5719:                           'CODE'   -> correct the CODE
 5720:                           'answer' -> fixup the submitted answers)
 5721:     
 5722:    $args               - hash of additional info,
 5723:                           - 'ID' 
 5724:                                'newid' -> studentID to use in replacement
 5725:                                           of existing one
 5726:                           - 'CODE' 
 5727:                                'CODE_ignore_dup' - set to true if duplicates
 5728:                                                    should be ignored.
 5729: 	                       'CODE' - is new code or 'use_unfound'
 5730:                                         if the existing unfound code should
 5731:                                         be used as is
 5732:                           - 'answer'
 5733:                                'response' - new answer or 'none' if blank
 5734:                                'question' - the bubble line to change
 5735:                                'questionnum' - the question identifier,
 5736:                                                may include subquestion. 
 5737: 
 5738:   Returns:
 5739:     $line - the modified scanline
 5740: 
 5741:   Side effects: 
 5742:     $scan_data - may be updated
 5743: 
 5744: =cut
 5745: 
 5746: 
 5747: sub scantron_fixup_scanline {
 5748:     my ($scantron_config,$scan_data,$line,$whichline,$field,$args)=@_;
 5749:     if ($field eq 'ID') {
 5750: 	if (length($args->{'newid'}) > $$scantron_config{'IDlength'}) {
 5751: 	    return ($line,1,'New value too large');
 5752: 	}
 5753: 	if (length($args->{'newid'}) < $$scantron_config{'IDlength'}) {
 5754: 	    $args->{'newid'}=sprintf('%-'.$$scantron_config{'IDlength'}.'s',
 5755: 				     $args->{'newid'});
 5756: 	}
 5757: 	substr($line,$$scantron_config{'IDstart'}-1,
 5758: 	       $$scantron_config{'IDlength'})=$args->{'newid'};
 5759: 	if ($args->{'newid'}=~/^\s*$/) {
 5760: 	    &scan_data($scan_data,"$whichline.user",
 5761: 		       $args->{'username'}.':'.$args->{'domain'});
 5762: 	}
 5763:     } elsif ($field eq 'CODE') {
 5764: 	if ($args->{'CODE_ignore_dup'}) {
 5765: 	    &scan_data($scan_data,"$whichline.CODE_ignore_dup",'1');
 5766: 	}
 5767: 	&scan_data($scan_data,"$whichline.useCODE",'1');
 5768: 	if ($args->{'CODE'} ne 'use_unfound') {
 5769: 	    if (length($args->{'CODE'}) > $$scantron_config{'CODElength'}) {
 5770: 		return ($line,1,'New CODE value too large');
 5771: 	    }
 5772: 	    if (length($args->{'CODE'}) < $$scantron_config{'CODElength'}) {
 5773: 		$args->{'CODE'}=sprintf('%-'.$$scantron_config{'CODElength'}.'s',$args->{'CODE'});
 5774: 	    }
 5775: 	    substr($line,$$scantron_config{'CODEstart'}-1,
 5776: 		   $$scantron_config{'CODElength'})=$args->{'CODE'};
 5777: 	}
 5778:     } elsif ($field eq 'answer') {
 5779: 	my $length=$scantron_config->{'Qlength'};
 5780: 	my $off=$scantron_config->{'Qoff'};
 5781: 	my $on=$scantron_config->{'Qon'};
 5782: 	my $answer=${off}x$length;
 5783: 	if ($args->{'response'} eq 'none') {
 5784: 	    &scan_data($scan_data,
 5785: 		       "$whichline.no_bubble.".$args->{'questionnum'},'1');
 5786: 	} else {
 5787: 	    if ($on eq 'letter') {
 5788: 		my @alphabet=('A'..'Z');
 5789: 		$answer=$alphabet[$args->{'response'}];
 5790: 	    } elsif ($on eq 'number') {
 5791: 		$answer=$args->{'response'}+1;
 5792: 		if ($answer == 10) { $answer = '0'; }
 5793: 	    } else {
 5794: 		substr($answer,$args->{'response'},1)=$on;
 5795: 	    }
 5796: 	    &scan_data($scan_data,
 5797: 		       "$whichline.no_bubble.".$args->{'questionnum'},undef,'1');
 5798: 	}
 5799: 	my $where=$length*($args->{'question'}-1)+$scantron_config->{'Qstart'};
 5800: 	substr($line,$where-1,$length)=$answer;
 5801:     }
 5802:     return $line;
 5803: }
 5804: 
 5805: =pod
 5806: 
 5807: =item scan_data
 5808: 
 5809:     Edit or look up  an item in the scan_data hash.
 5810: 
 5811:   Arguments:
 5812:     $scan_data  - The hash (see scantron_getfile)
 5813:     $key        - shorthand of the key to edit (actual key is
 5814:                   scantronfilename_key).
 5815:     $data        - New value of the hash entry.
 5816:     $delete      - If true, the entry is removed from the hash.
 5817: 
 5818:   Returns:
 5819:     The new value of the hash table field (undefined if deleted).
 5820: 
 5821: =cut
 5822: 
 5823: 
 5824: sub scan_data {
 5825:     my ($scan_data,$key,$value,$delete)=@_;
 5826:     my $filename=$env{'form.scantron_selectfile'};
 5827:     if (defined($value)) {
 5828: 	$scan_data->{$filename.'_'.$key} = $value;
 5829:     }
 5830:     if ($delete) { delete($scan_data->{$filename.'_'.$key}); }
 5831:     return $scan_data->{$filename.'_'.$key};
 5832: }
 5833: 
 5834: # ----- These first few routines are general use routines.----
 5835: 
 5836: # Return the number of occurences of a pattern in a string.
 5837: 
 5838: sub occurence_count {
 5839:     my ($string, $pattern) = @_;
 5840: 
 5841:     my @matches = ($string =~ /$pattern/g);
 5842: 
 5843:     return scalar(@matches);
 5844: }
 5845: 
 5846: 
 5847: # Take a string known to have digits and convert all the
 5848: # digits into letters in the range J,A..I.
 5849: 
 5850: sub digits_to_letters {
 5851:     my ($input) = @_;
 5852: 
 5853:     my @alphabet = ('J', 'A'..'I');
 5854: 
 5855:     my @input    = split(//, $input);
 5856:     my $output ='';
 5857:     for (my $i = 0; $i < scalar(@input); $i++) {
 5858: 	if ($input[$i] =~ /\d/) {
 5859: 	    $output .= $alphabet[$input[$i]];
 5860: 	} else {
 5861: 	    $output .= $input[$i];
 5862: 	}
 5863:     }
 5864:     return $output;
 5865: }
 5866: 
 5867: =pod 
 5868: 
 5869: =item scantron_parse_scanline
 5870: 
 5871:   Decodes a scanline from the selected scantron file
 5872: 
 5873:  Arguments:
 5874:     line             - The text of the scantron file line to process
 5875:     whichline        - Line number
 5876:     scantron_config  - Hash describing the format of the scantron lines.
 5877:     scan_data        - Hash of extra information about the scanline
 5878:                        (see scantron_getfile for more information)
 5879:     just_header      - True if should not process question answers but only
 5880:                        the stuff to the left of the answers.
 5881:     randomorder      - True if randomorder in use
 5882:     randompick       - True if randompick in use
 5883:     sequence         - Exam folder URL
 5884:     master_seq       - Ref to array containing symbs in exam folder
 5885:     symb_to_resource - Ref to hash of symbs for resources in exam folder
 5886:                        (corresponding values are resource objects)
 5887:     partids_by_symb  - Ref to hash of symb -> array ref of partIDs
 5888:     orderedforcode   - Ref to hash of arrays. keys are CODEs and values
 5889:                        are refs to an array of resource objects, ordered
 5890:                        according to order used for CODE, when randomorder
 5891:                        and or randompick are in use.
 5892:     respnumlookup    - Ref to hash mapping question numbers in bubble lines
 5893:                        for current line to question number used for same question
 5894:                         in "Master Sequence" (as seen by Course Coordinator).
 5895:     startline        - Ref to hash where key is question number (0 is first)
 5896:                        and value is number of first bubble line for current 
 5897:                        student or code-based randompick and/or randomorder.
 5898:     totalref         - Ref of scalar used to score total number of bubble
 5899:                        lines needed for responses in a scan line (used when
 5900:                        randompick in use. 
 5901:     
 5902:  Returns:
 5903:    Hash containing the result of parsing the scanline
 5904: 
 5905:    Keys are all proceeded by the string 'scantron.'
 5906: 
 5907:        CODE    - the CODE in use for this scanline
 5908:        useCODE - 1 if the CODE is invalid but it usage has been forced
 5909:                  by the operator
 5910:        CODE_ignore_dup - 1 if the CODE is a duplicated use when unique
 5911:                             CODEs were selected, but the usage has been
 5912:                             forced by the operator
 5913:        ID  - student/employee ID
 5914:        PaperID - if used, the ID number printed on the sheet when the 
 5915:                  paper was scanned
 5916:        FirstName - first name from the sheet
 5917:        LastName  - last name from the sheet
 5918: 
 5919:      if just_header was not true these key may also exist
 5920: 
 5921:        missingerror - a list of bubble ranges that are considered to be answers
 5922:                       to a single question that don't have any bubbles filled in.
 5923:                       Of the form questionnumber:firstbubblenumber:count.
 5924:        doubleerror  - a list of bubble ranges that are considered to be answers
 5925:                       to a single question that have more than one bubble filled in.
 5926:                       Of the form questionnumber::firstbubblenumber:count
 5927:    
 5928:                 In the above, count is the number of bubble responses in the
 5929:                 input line needed to represent the possible answers to the question.
 5930:                 e.g. a radioresponse with 15 choices in an answer sheet with 10 choices
 5931:                 per line would have count = 2.
 5932: 
 5933:        maxquest     - the number of the last bubble line that was parsed
 5934: 
 5935:        (<number> starts at 1)
 5936:        <number>.answer - zero or more letters representing the selected
 5937:                          letters from the scanline for the bubble line 
 5938:                          <number>.
 5939:                          if blank there was either no bubble or there where
 5940:                          multiple bubbles, (consult the keys missingerror and
 5941:                          doubleerror if this is an error condition)
 5942: 
 5943: =cut
 5944: 
 5945: sub scantron_parse_scanline {
 5946:     my ($line,$whichline,$scantron_config,$scan_data,$just_header,$idmap,
 5947:         $randomorder,$randompick,$sequence,$master_seq,$symb_to_resource,
 5948:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline,$totalref)=@_;
 5949: 
 5950:     my %record;
 5951:     my $data=substr($line,0,$$scantron_config{'Qstart'}-1); # stuff before answers
 5952:     if (!($$scantron_config{'CODElocation'} eq 0 ||
 5953: 	  $$scantron_config{'CODElocation'} eq 'none')) {
 5954: 	if ($$scantron_config{'CODElocation'} < 0 ||
 5955: 	    $$scantron_config{'CODElocation'} eq 'letter' ||
 5956: 	    $$scantron_config{'CODElocation'} eq 'number') {
 5957: 	    $record{'scantron.CODE'}=substr($data,
 5958: 					    $$scantron_config{'CODEstart'}-1,
 5959: 					    $$scantron_config{'CODElength'});
 5960: 	    if (&scan_data($scan_data,"$whichline.useCODE")) {
 5961: 		$record{'scantron.useCODE'}=1;
 5962: 	    }
 5963: 	    if (&scan_data($scan_data,"$whichline.CODE_ignore_dup")) {
 5964: 		$record{'scantron.CODE_ignore_dup'}=1;
 5965: 	    }
 5966: 	} else {
 5967: 	    #FIXME interpret first N questions
 5968: 	}
 5969:     }
 5970:     $record{'scantron.ID'}=substr($data,$$scantron_config{'IDstart'}-1,
 5971: 				  $$scantron_config{'IDlength'});
 5972:     $record{'scantron.PaperID'}=
 5973: 	substr($data,$$scantron_config{'PaperID'}-1,
 5974: 	       $$scantron_config{'PaperIDlength'});
 5975:     $record{'scantron.FirstName'}=
 5976: 	substr($data,$$scantron_config{'FirstName'}-1,
 5977: 	       $$scantron_config{'FirstNamelength'});
 5978:     $record{'scantron.LastName'}=
 5979: 	substr($data,$$scantron_config{'LastName'}-1,
 5980: 	       $$scantron_config{'LastNamelength'});
 5981:     if ($just_header) { return \%record; }
 5982: 
 5983:     my @alphabet=('A'..'Z');
 5984:     my $questnum=0;
 5985:     my $ansnum  =1;		# Multiple 'answer lines'/question.
 5986: 
 5987:     my $lastpos = $env{'form.scantron_maxbubble'}*$$scantron_config{'Qlength'};
 5988:     if ($randompick || $randomorder) {
 5989:         my $total = &get_respnum_lookups($sequence,$scan_data,$idmap,$line,\%record,
 5990:                                          $master_seq,$symb_to_resource,
 5991:                                          $partids_by_symb,$orderedforcode,
 5992:                                          $respnumlookup,$startline);
 5993:         if ($total) {
 5994:             $lastpos = $total*$$scantron_config{'Qlength'}; 
 5995:         }
 5996:         if (ref($totalref)) {
 5997:             $$totalref = $total;
 5998:         }
 5999:     }
 6000:     my $questions=substr($line,$$scantron_config{'Qstart'}-1,$lastpos);  # Answers
 6001:     chomp($questions);		# Get rid of any trailing \n.
 6002:     $questions =~ s/\r$//;      # Get rid of trailing \r too (MAC or Win uploads).
 6003:     while (length($questions)) {
 6004:         my $answers_needed;
 6005:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6006:             $answers_needed = $bubble_lines_per_response{$respnumlookup->{$questnum}};
 6007:         } else {
 6008: 	    $answers_needed = $bubble_lines_per_response{$questnum};
 6009:         }
 6010:         my $answer_length  = ($$scantron_config{'Qlength'} * $answers_needed)
 6011:                              || 1;
 6012:         $questnum++;
 6013:         my $quest_id = $questnum;
 6014:         my $currentquest = substr($questions,0,$answer_length);
 6015:         $questions       = substr($questions,$answer_length);
 6016:         if (length($currentquest) < $answer_length) { next; }
 6017: 
 6018:         my $subdivided;
 6019:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6020:             $subdivided = $subdivided_bubble_lines{$respnumlookup->{$questnum-1}};
 6021:         } else {
 6022:             $subdivided = $subdivided_bubble_lines{$questnum-1};
 6023:         }
 6024:         if ($subdivided =~ /,/) {
 6025:             my $subquestnum = 1;
 6026:             my $subquestions = $currentquest;
 6027:             my @subanswers_needed = split(/,/,$subdivided);
 6028:             foreach my $subans (@subanswers_needed) {
 6029:                 my $subans_length =
 6030:                     ($$scantron_config{'Qlength'} * $subans)  || 1;
 6031:                 my $currsubquest = substr($subquestions,0,$subans_length);
 6032:                 $subquestions   = substr($subquestions,$subans_length);
 6033:                 $quest_id = "$questnum.$subquestnum";
 6034:                 if (($$scantron_config{'Qon'} eq 'letter') ||
 6035:                     ($$scantron_config{'Qon'} eq 'number')) {
 6036:                     $ansnum = &scantron_validator_lettnum($ansnum, 
 6037:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6038:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6039:                         $randomorder,$randompick,$respnumlookup);
 6040:                 } else {
 6041:                     $ansnum = &scantron_validator_positional($ansnum,
 6042:                         $questnum,$quest_id,$subans,$currsubquest,$whichline,
 6043:                         \@alphabet,\%record,$scantron_config,$scan_data,
 6044:                         $randomorder,$randompick,$respnumlookup);
 6045:                 }
 6046:                 $subquestnum ++;
 6047:             }
 6048:         } else {
 6049:             if (($$scantron_config{'Qon'} eq 'letter') ||
 6050:                 ($$scantron_config{'Qon'} eq 'number')) {
 6051:                 $ansnum = &scantron_validator_lettnum($ansnum,$questnum,
 6052:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6053:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6054:                     $randomorder,$randompick,$respnumlookup);
 6055:             } else {
 6056:                 $ansnum = &scantron_validator_positional($ansnum,$questnum,
 6057:                     $quest_id,$answers_needed,$currentquest,$whichline,
 6058:                     \@alphabet,\%record,$scantron_config,$scan_data,
 6059:                     $randomorder,$randompick,$respnumlookup);
 6060:             }
 6061:         }
 6062:     }
 6063:     $record{'scantron.maxquest'}=$questnum;
 6064:     return \%record;
 6065: }
 6066: 
 6067: sub get_master_seq {
 6068:     my ($resources,$master_seq,$symb_to_resource) = @_;
 6069:     return unless ((ref($resources) eq 'ARRAY') && (ref($master_seq) eq 'ARRAY') && 
 6070:                    (ref($symb_to_resource) eq 'HASH'));
 6071:     my $resource_error;
 6072:     foreach my $resource (@{$resources}) {
 6073:         my $ressymb;
 6074:         if (ref($resource)) {
 6075:             $ressymb = $resource->symb();
 6076:             push(@{$master_seq},$ressymb);
 6077:             $symb_to_resource->{$ressymb} = $resource;
 6078:         } else {
 6079:             $resource_error = 1;
 6080:             last;
 6081:         }
 6082:     }
 6083:     return $resource_error;
 6084: }
 6085: 
 6086: sub get_respnum_lookups {
 6087:     my ($sequence,$scan_data,$idmap,$line,$record,$master_seq,$symb_to_resource,
 6088:         $partids_by_symb,$orderedforcode,$respnumlookup,$startline) = @_;
 6089:     return unless ((ref($record) eq 'HASH') && (ref($master_seq) eq 'ARRAY') &&
 6090:                    (ref($symb_to_resource) eq 'HASH') && (ref($partids_by_symb) eq 'HASH') &&
 6091:                    (ref($orderedforcode) eq 'HASH') && (ref($respnumlookup) eq 'HASH') &&
 6092:                    (ref($startline) eq 'HASH'));
 6093:     my ($user,$scancode);
 6094:     if ((exists($record->{'scantron.CODE'})) &&
 6095:         (&Apache::lonnet::validCODE($record->{'scantron.CODE'}))) {
 6096:         $scancode = $record->{'scantron.CODE'};
 6097:     } else {
 6098:         $user = &scantron_find_student($record,$scan_data,$idmap,$line);
 6099:     }
 6100:     my @mapresources =
 6101:         &users_order($user,$scancode,$sequence,$master_seq,$symb_to_resource,
 6102:                      $orderedforcode);
 6103:     my $total = 0;
 6104:     my $count = 0;
 6105:     foreach my $resource (@mapresources) {
 6106:         my $id = $resource->id();
 6107:         my $symb = $resource->symb();
 6108:         if (ref($partids_by_symb->{$symb}) eq 'ARRAY') {
 6109:             foreach my $partid (@{$partids_by_symb->{$symb}}) {
 6110:                 my $respnum = $masterseq_id_responsenum{$id.'_'.$partid};
 6111:                 if ($respnum ne '') {
 6112:                     $respnumlookup->{$count} = $respnum;
 6113:                     $startline->{$count} = $total;
 6114:                     $total += $bubble_lines_per_response{$respnum};
 6115:                     $count ++;
 6116:                 }
 6117:             }
 6118:         }
 6119:     }
 6120:     return $total;
 6121: }
 6122: 
 6123: sub scantron_validator_lettnum {
 6124:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,$whichline,
 6125:         $alphabet,$record,$scantron_config,$scan_data,$randomorder,
 6126:         $randompick,$respnumlookup) = @_;
 6127: 
 6128:     # Qon 'letter' implies for each slot in currquest we have:
 6129:     #    ? or * for doubles, a letter in A-Z for a bubble, and
 6130:     #    about anything else (esp. a value of Qoff) for missing
 6131:     #    bubbles.
 6132:     #
 6133:     # Qon 'number' implies each slot gives a digit that indexes the
 6134:     #    bubbles filled, or Qoff, or a non-number for unbubbled lines,
 6135:     #    and * or ? for double bubbles on a single line.
 6136:     #
 6137: 
 6138:     my $matchon;
 6139:     if ($$scantron_config{'Qon'} eq 'letter') {
 6140:         $matchon = '[A-Z]';
 6141:     } elsif ($$scantron_config{'Qon'} eq 'number') {
 6142:         $matchon = '\d';
 6143:     }
 6144:     my $occurrences = 0;
 6145:     my $responsenum = $questnum-1;
 6146:     if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6147:        $responsenum = $respnumlookup->{$questnum-1} 
 6148:     }
 6149:     if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6150:         ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6151:         ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6152:         ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6153:         ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6154:         ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6155:         my @singlelines = split('',$currquest);
 6156:         foreach my $entry (@singlelines) {
 6157:             $occurrences = &occurence_count($entry,$matchon);
 6158:             if ($occurrences > 1) {
 6159:                 last;
 6160:             }
 6161:         }
 6162:     } else {
 6163:         $occurrences = &occurence_count($currquest,$matchon); 
 6164:     }
 6165:     if (($currquest =~ /\?/ || $currquest =~ /\*/) || ($occurrences > 1)) {
 6166:         push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6167:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6168:             my $bubble = substr($currquest,$ans,1);
 6169:             if ($bubble =~ /$matchon/ ) {
 6170:                 if ($$scantron_config{'Qon'} eq 'number') {
 6171:                     if ($bubble == 0) {
 6172:                         $bubble = 10; 
 6173:                     }
 6174:                     $record->{"scantron.$ansnum.answer"} = 
 6175:                         $alphabet->[$bubble-1];
 6176:                 } else {
 6177:                     $record->{"scantron.$ansnum.answer"} = $bubble;
 6178:                 }
 6179:             } else {
 6180:                 $record->{"scantron.$ansnum.answer"}='';
 6181:             }
 6182:             $ansnum++;
 6183:         }
 6184:     } elsif (!defined($currquest)
 6185:             || (&occurence_count($currquest, $$scantron_config{'Qoff'}) == length($currquest))
 6186:             || (&occurence_count($currquest,$matchon) == 0)) {
 6187:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6188:             $record->{"scantron.$ansnum.answer"}='';
 6189:             $ansnum++;
 6190:         }
 6191:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6192:             push(@{$record->{'scantron.missingerror'}},$quest_id);
 6193:         }
 6194:     } else {
 6195:         if ($$scantron_config{'Qon'} eq 'number') {
 6196:             $currquest = &digits_to_letters($currquest);            
 6197:         }
 6198:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6199:             my $bubble = substr($currquest,$ans,1);
 6200:             $record->{"scantron.$ansnum.answer"} = $bubble;
 6201:             $ansnum++;
 6202:         }
 6203:     }
 6204:     return $ansnum;
 6205: }
 6206: 
 6207: sub scantron_validator_positional {
 6208:     my ($ansnum,$questnum,$quest_id,$answers_needed,$currquest,
 6209:         $whichline,$alphabet,$record,$scantron_config,$scan_data,
 6210:         $randomorder,$randompick,$respnumlookup) = @_;
 6211: 
 6212:     # Otherwise there's a positional notation;
 6213:     # each bubble line requires Qlength items, and there are filled in
 6214:     # bubbles for each case where there 'Qon' characters.
 6215:     #
 6216: 
 6217:     my @array=split($$scantron_config{'Qon'},$currquest,-1);
 6218: 
 6219:     # If the split only gives us one element.. the full length of the
 6220:     # answer string, no bubbles are filled in:
 6221: 
 6222:     if ($answers_needed eq '') {
 6223:         return;
 6224:     }
 6225: 
 6226:     if (length($array[0]) eq $$scantron_config{'Qlength'}*$answers_needed) {
 6227:         for (my $ans=0; $ans<$answers_needed; $ans++ ) {
 6228:             $record->{"scantron.$ansnum.answer"}='';
 6229:             $ansnum++;
 6230:         }
 6231:         if (!&scan_data($scan_data,"$whichline.no_bubble.$quest_id")) {
 6232:             push(@{$record->{"scantron.missingerror"}},$quest_id);
 6233:         }
 6234:     } elsif (scalar(@array) == 2) {
 6235:         my $location = length($array[0]);
 6236:         my $line_num = int($location / $$scantron_config{'Qlength'});
 6237:         my $bubble   = $alphabet->[$location % $$scantron_config{'Qlength'}];
 6238:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6239:             if ($ans eq $line_num) {
 6240:                 $record->{"scantron.$ansnum.answer"} = $bubble;
 6241:             } else {
 6242:                 $record->{"scantron.$ansnum.answer"} = ' ';
 6243:             }
 6244:             $ansnum++;
 6245:          }
 6246:     } else {
 6247:         #  If there's more than one instance of a bubble character
 6248:         #  That's a double bubble; with positional notation we can
 6249:         #  record all the bubbles filled in as well as the
 6250:         #  fact this response consists of multiple bubbles.
 6251:         #
 6252:         my $responsenum = $questnum-1;
 6253:         if (($randompick || $randomorder) && (ref($respnumlookup) eq 'HASH')) {
 6254:             $responsenum = $respnumlookup->{$questnum-1}
 6255:         }
 6256:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 6257:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 6258:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 6259:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 6260:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 6261:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 6262:             my $doubleerror = 0;
 6263:             while (($currquest >= $$scantron_config{'Qlength'}) && 
 6264:                    (!$doubleerror)) {
 6265:                my $currline = substr($currquest,0,$$scantron_config{'Qlength'});
 6266:                $currquest = substr($currquest,$$scantron_config{'Qlength'});
 6267:                my @currarray = split($$scantron_config{'Qon'},$currline,-1);
 6268:                if (length(@currarray) > 2) {
 6269:                    $doubleerror = 1;
 6270:                } 
 6271:             }
 6272:             if ($doubleerror) {
 6273:                 push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6274:             }
 6275:         } else {
 6276:             push(@{$record->{'scantron.doubleerror'}},$quest_id);
 6277:         }
 6278:         my $item = $ansnum;
 6279:         for (my $ans=0; $ans<$answers_needed; $ans++) {
 6280:             $record->{"scantron.$item.answer"} = '';
 6281:             $item ++;
 6282:         }
 6283: 
 6284:         my @ans=@array;
 6285:         my $i=0;
 6286:         my $increment = 0;
 6287:         while ($#ans) {
 6288:             $i+=length($ans[0]) + $increment;
 6289:             my $line   = int($i/$$scantron_config{'Qlength'} + $ansnum);
 6290:             my $bubble = $i%$$scantron_config{'Qlength'};
 6291:             $record->{"scantron.$line.answer"}.=$alphabet->[$bubble];
 6292:             shift(@ans);
 6293:             $increment = 1;
 6294:         }
 6295:         $ansnum += $answers_needed;
 6296:     }
 6297:     return $ansnum;
 6298: }
 6299: 
 6300: =pod
 6301: 
 6302: =item scantron_add_delay
 6303: 
 6304:    Adds an error message that occurred during the grading phase to a
 6305:    queue of messages to be shown after grading pass is complete
 6306: 
 6307:  Arguments:
 6308:    $delayqueue  - arrary ref of hash ref of error messages
 6309:    $scanline    - the scanline that caused the error
 6310:    $errormesage - the error message
 6311:    $errorcode   - a numeric code for the error
 6312: 
 6313:  Side Effects:
 6314:    updates the $delayqueue to have a new hash ref of the error
 6315: 
 6316: =cut
 6317: 
 6318: sub scantron_add_delay {
 6319:     my ($delayqueue,$scanline,$errormessage,$errorcode)=@_;
 6320:     push(@$delayqueue,
 6321: 	 {'line' => $scanline, 'emsg' => $errormessage,
 6322: 	  'ecode' => $errorcode }
 6323: 	 );
 6324: }
 6325: 
 6326: =pod
 6327: 
 6328: =item scantron_find_student
 6329: 
 6330:    Finds the username for the current scanline
 6331: 
 6332:   Arguments:
 6333:    $scantron_record - hash result from scantron_parse_scanline
 6334:    $scan_data       - hash of correction information 
 6335:                       (see &scantron_getfile() form more information)
 6336:    $idmap           - hash from &username_to_idmap()
 6337:    $line            - number of current scanline
 6338:  
 6339:   Returns:
 6340:    Either 'username:domain' or undef if unknown
 6341: 
 6342: =cut
 6343: 
 6344: sub scantron_find_student {
 6345:     my ($scantron_record,$scan_data,$idmap,$line)=@_;
 6346:     my $scanID=$$scantron_record{'scantron.ID'};
 6347:     if ($scanID =~ /^\s*$/) {
 6348:  	return &scan_data($scan_data,"$line.user");
 6349:     }
 6350:     foreach my $id (keys(%$idmap)) {
 6351:  	if (lc($id) eq lc($scanID)) {
 6352:  	    return $$idmap{$id};
 6353:  	}
 6354:     }
 6355:     return undef;
 6356: }
 6357: 
 6358: =pod
 6359: 
 6360: =item scantron_filter
 6361: 
 6362:    Filter sub for lonnavmaps, filters out hidden resources if ignore
 6363:    hidden resources was selected
 6364: 
 6365: =cut
 6366: 
 6367: sub scantron_filter {
 6368:     my ($curres)=@_;
 6369: 
 6370:     if (ref($curres) && $curres->is_problem()) {
 6371: 	# if the user has asked to not have either hidden
 6372: 	# or 'randomout' controlled resources to be graded
 6373: 	# don't include them
 6374: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 6375: 	    && $curres->randomout) {
 6376: 	    return 0;
 6377: 	}
 6378: 	return 1;
 6379:     }
 6380:     return 0;
 6381: }
 6382: 
 6383: =pod
 6384: 
 6385: =item scantron_process_corrections
 6386: 
 6387:    Gets correction information out of submitted form data and corrects
 6388:    the scanline
 6389: 
 6390: =cut
 6391: 
 6392: sub scantron_process_corrections {
 6393:     my ($r) = @_;
 6394:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6395:     my ($scanlines,$scan_data)=&scantron_getfile();
 6396:     my $classlist=&Apache::loncoursedata::get_classlist();
 6397:     my $which=$env{'form.scantron_line'};
 6398:     my $line=&scantron_get_line($scanlines,$scan_data,$which);
 6399:     my ($skip,$err,$errmsg);
 6400:     if ($env{'form.scantron_skip_record'}) {
 6401: 	$skip=1;
 6402:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)ID$/) {
 6403: 	my $newstudent=$env{'form.scantron_username'}.':'.
 6404: 	    $env{'form.scantron_domain'};
 6405: 	my $newid=$classlist->{$newstudent}->[&Apache::loncoursedata::CL_ID];
 6406: 	($line,$err,$errmsg)=
 6407: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6408: 				     'ID',{'newid'=>$newid,
 6409: 				    'username'=>$env{'form.scantron_username'},
 6410: 				    'domain'=>$env{'form.scantron_domain'}});
 6411:     } elsif ($env{'form.scantron_corrections'} =~ /^(duplicate|incorrect)CODE$/) {
 6412: 	my $resolution=$env{'form.scantron_CODE_resolution'};
 6413: 	my $newCODE;
 6414: 	my %args;
 6415: 	if      ($resolution eq 'use_unfound') {
 6416: 	    $newCODE='use_unfound';
 6417: 	} elsif ($resolution eq 'use_found') {
 6418: 	    $newCODE=$env{'form.scantron_CODE_selectedvalue'};
 6419: 	} elsif ($resolution eq 'use_typed') {
 6420: 	    $newCODE=$env{'form.scantron_CODE_newvalue'};
 6421: 	} elsif ($resolution =~ /^use_closest_(\d+)/) {
 6422: 	    $newCODE=$env{"form.scantron_CODE_closest_$1"};
 6423: 	}
 6424: 	if ($env{'form.scantron_corrections'} eq 'duplicateCODE') {
 6425: 	    $args{'CODE_ignore_dup'}=1;
 6426: 	}
 6427: 	$args{'CODE'}=$newCODE;
 6428: 	($line,$err,$errmsg)=
 6429: 	    &scantron_fixup_scanline(\%scantron_config,$scan_data,$line,$which,
 6430: 				     'CODE',\%args);
 6431:     } elsif ($env{'form.scantron_corrections'} =~ /^(missing|double)bubble$/) {
 6432: 	foreach my $question (split(',',$env{'form.scantron_questions'})) {
 6433: 	    ($line,$err,$errmsg)=
 6434: 		&scantron_fixup_scanline(\%scantron_config,$scan_data,$line,
 6435: 					 $which,'answer',
 6436: 					 { 'question'=>$question,
 6437: 		      		   'response'=>$env{"form.scantron_correct_Q_$question"},
 6438:                                    'questionnum'=>$env{"form.scantron_questionnum_Q_$question"}});
 6439: 	    if ($err) { last; }
 6440: 	}
 6441:     }
 6442:     if ($err) {
 6443: 	$r->print("<span class=\"LC_warning\">Unable to accept last correction, an error occurred :$errmsg:</span>");
 6444:     } else {
 6445: 	&scantron_put_line($scanlines,$scan_data,$which,$line,$skip);
 6446: 	&scantron_putfile($scanlines,$scan_data);
 6447:     }
 6448: }
 6449: 
 6450: =pod
 6451: 
 6452: =item reset_skipping_status
 6453: 
 6454:    Forgets the current set of remember skipped scanlines (and thus
 6455:    reverts back to considering all lines in the
 6456:    scantron_skipped_<filename> file)
 6457: 
 6458: =cut
 6459: 
 6460: sub reset_skipping_status {
 6461:     my ($scanlines,$scan_data)=&scantron_getfile();
 6462:     &scan_data($scan_data,'remember_skipping',undef,1);
 6463:     &scantron_putfile(undef,$scan_data);
 6464: }
 6465: 
 6466: =pod
 6467: 
 6468: =item start_skipping
 6469: 
 6470:    Marks a scanline to be skipped. 
 6471: 
 6472: =cut
 6473: 
 6474: sub start_skipping {
 6475:     my ($scan_data,$i)=@_;
 6476:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6477:     if ($env{'form.scantron_options_redo'} =~ /^redo_/) {
 6478: 	$remembered{$i}=2;
 6479:     } else {
 6480: 	$remembered{$i}=1;
 6481:     }
 6482:     &scan_data($scan_data,'remember_skipping',join(':',%remembered));
 6483: }
 6484: 
 6485: =pod
 6486: 
 6487: =item should_be_skipped
 6488: 
 6489:    Checks whether a scanline should be skipped.
 6490: 
 6491: =cut
 6492: 
 6493: sub should_be_skipped {
 6494:     my ($scanlines,$scan_data,$i)=@_;
 6495:     if ($env{'form.scantron_options_redo'} !~ /^redo_/) {
 6496: 	# not redoing old skips
 6497: 	if ($scanlines->{'skipped'}[$i]) { return 1; }
 6498: 	return 0;
 6499:     }
 6500:     my %remembered=split(':',&scan_data($scan_data,'remember_skipping'));
 6501: 
 6502:     if (exists($remembered{$i}) && $remembered{$i} != 2 ) {
 6503: 	return 0;
 6504:     }
 6505:     return 1;
 6506: }
 6507: 
 6508: =pod
 6509: 
 6510: =item remember_current_skipped
 6511: 
 6512:    Discovers what scanlines are in the scantron_skipped_<filename>
 6513:    file and remembers them into scan_data for later use.
 6514: 
 6515: =cut
 6516: 
 6517: sub remember_current_skipped {
 6518:     my ($scanlines,$scan_data)=&scantron_getfile();
 6519:     my %to_remember;
 6520:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 6521: 	if ($scanlines->{'skipped'}[$i]) {
 6522: 	    $to_remember{$i}=1;
 6523: 	}
 6524:     }
 6525: 
 6526:     &scan_data($scan_data,'remember_skipping',join(':',%to_remember));
 6527:     &scantron_putfile(undef,$scan_data);
 6528: }
 6529: 
 6530: =pod
 6531: 
 6532: =item check_for_error
 6533: 
 6534:     Checks if there was an error when attempting to remove a specific
 6535:     scantron_.. bubblesheet data file. Prints out an error if
 6536:     something went wrong.
 6537: 
 6538: =cut
 6539: 
 6540: sub check_for_error {
 6541:     my ($r,$result)=@_;
 6542:     if ($result ne 'ok' && $result ne 'not_found' ) {
 6543: 	$r->print(&mt("An error occurred ([_1]) when trying to remove the existing corrections.",$result));
 6544:     }
 6545: }
 6546: 
 6547: =pod
 6548: 
 6549: =item scantron_warning_screen
 6550: 
 6551:    Interstitial screen to make sure the operator has selected the
 6552:    correct options before we start the validation phase.
 6553: 
 6554: =cut
 6555: 
 6556: sub scantron_warning_screen {
 6557:     my ($button_text,$symb)=@_;
 6558:     my $title=&Apache::lonnet::gettitle($env{'form.selectpage'});
 6559:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6560:     my $CODElist;
 6561:     if ($scantron_config{'CODElocation'} &&
 6562: 	$scantron_config{'CODEstart'} &&
 6563: 	$scantron_config{'CODElength'}) {
 6564: 	$CODElist=$env{'form.scantron_CODElist'};
 6565: 	if ($env{'form.scantron_CODElist'} eq '') { $CODElist='<span class="LC_warning">None</span>'; }
 6566: 	$CODElist=
 6567: 	    '<tr><td><b>'.&mt('List of CODES to validate against:').'</b></td><td><tt>'.
 6568: 	    $env{'form.scantron_CODElist'}.'</tt></td></tr>';
 6569:     }
 6570:     my $lastbubblepoints;
 6571:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 6572:         $lastbubblepoints =
 6573:             '<tr><td><b>'.&mt('Hand-graded items: points from last bubble in row').'</b></td><td><tt>'.
 6574:             $env{'form.scantron_lastbubblepoints'}.'</tt></td></tr>';
 6575:     }
 6576:     return ('
 6577: <p>
 6578: <span class="LC_warning">
 6579: '.&mt('Please double check the information below before clicking on \'[_1]\'',&mt($button_text)).'</span>
 6580: </p>
 6581: <table>
 6582: <tr><td><b>'.&mt('Sequence to be Graded:').'</b></td><td>'.$title.'</td></tr>
 6583: <tr><td><b>'.&mt('Data File that will be used:').'</b></td><td><tt>'.$env{'form.scantron_selectfile'}.'</tt></td></tr>
 6584: '.$CODElist.$lastbubblepoints.'
 6585: </table>
 6586: <p> '.&mt("If this information is correct, please click on '[_1]'.",&mt($button_text)).'<br />
 6587: '.&mt('If something is incorrect, please return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>
 6588: 
 6589: <br />
 6590: ');
 6591: }
 6592: 
 6593: =pod
 6594: 
 6595: =item scantron_do_warning
 6596: 
 6597:    Check if the operator has picked something for all required
 6598:    fields. Error out if something is missing.
 6599: 
 6600: =cut
 6601: 
 6602: sub scantron_do_warning {
 6603:     my ($r,$symb)=@_;
 6604:     if (!$symb) {return '';}
 6605:     my $default_form_data=&defaultFormData($symb);
 6606:     $r->print(&scantron_form_start().$default_form_data);
 6607:     if ( $env{'form.selectpage'} eq '' ||
 6608: 	 $env{'form.scantron_selectfile'} eq '' ||
 6609: 	 $env{'form.scantron_format'} eq '' ) {
 6610: 	$r->print("<p>".&mt('You have forgotten to specify some information. Please go Back and try again.')."</p>");
 6611: 	if ( $env{'form.selectpage'} eq '') {
 6612: 	    $r->print('<p><span class="LC_error">'.&mt('You have not selected a Sequence to grade').'</span></p>');
 6613: 	} 
 6614: 	if ( $env{'form.scantron_selectfile'} eq '') {
 6615: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected a file that contains the student's response data.").'</span></p>');
 6616: 	} 
 6617: 	if ( $env{'form.scantron_format'} eq '') {
 6618: 	    $r->print('<p><span class="LC_error">'.&mt("You have not selected the format of the student's response data.").'</span></p>');
 6619: 	} 
 6620:     } else {
 6621: 	my $warning=&scantron_warning_screen('Grading: Validate Records',$symb);
 6622:         my $bubbledbyhand=&hand_bubble_option();
 6623: 	$r->print('
 6624: '.$warning.$bubbledbyhand.'
 6625: <input type="submit" name="submit" value="'.&mt('Grading: Validate Records').'" />
 6626: <input type="hidden" name="command" value="scantron_validate" />
 6627: ');
 6628:     }
 6629:     $r->print("</form><br />");
 6630:     return '';
 6631: }
 6632: 
 6633: =pod
 6634: 
 6635: =item scantron_form_start
 6636: 
 6637:     html hidden input for remembering all selected grading options
 6638: 
 6639: =cut
 6640: 
 6641: sub scantron_form_start {
 6642:     my ($max_bubble)=@_;
 6643:     my $result= <<SCANTRONFORM;
 6644: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 6645:   <input type="hidden" name="selectpage" value="$env{'form.selectpage'}" />
 6646:   <input type="hidden" name="scantron_format" value="$env{'form.scantron_format'}" />
 6647:   <input type="hidden" name="scantron_selectfile" value="$env{'form.scantron_selectfile'}" />
 6648:   <input type="hidden" name="scantron_maxbubble" value="$max_bubble" />
 6649:   <input type="hidden" name="scantron_CODElist" value="$env{'form.scantron_CODElist'}" />
 6650:   <input type="hidden" name="scantron_CODEunique" value="$env{'form.scantron_CODEunique'}" />
 6651:   <input type="hidden" name="scantron_options_redo" value="$env{'form.scantron_options_redo'}" />
 6652:   <input type="hidden" name="scantron_options_ignore" value="$env{'form.scantron_options_ignore'}" />
 6653:   <input type="hidden" name="scantron_options_hidden" value="$env{'form.scantron_options_hidden'}" />
 6654: SCANTRONFORM
 6655: 
 6656:   my $line = 0;
 6657:     while (defined($env{"form.scantron.bubblelines.$line"})) {
 6658:        my $chunk =
 6659: 	   '<input type="hidden" name="scantron.bubblelines.'.$line.'" value="'.$env{"form.scantron.bubblelines.$line"}.'" />'."\n";
 6660:        $chunk .=
 6661: 	   '<input type="hidden" name="scantron.first_bubble_line.'.$line.'" value="'.$env{"form.scantron.first_bubble_line.$line"}.'" />'."\n";
 6662:        $chunk .= 
 6663:            '<input type="hidden" name="scantron.sub_bubblelines.'.$line.'" value="'.$env{"form.scantron.sub_bubblelines.$line"}.'" />'."\n";
 6664:        $chunk .=
 6665:            '<input type="hidden" name="scantron.responsetype.'.$line.'" value="'.$env{"form.scantron.responsetype.$line"}.'" />'."\n";
 6666:        $chunk .=
 6667:            '<input type="hidden" name="scantron.residpart.'.$line.'" value="'.$env{"form.scantron.residpart.$line"}.'" />'."\n";
 6668:        $result .= $chunk;
 6669:        $line++;
 6670:     }
 6671:     return $result;
 6672: }
 6673: 
 6674: =pod
 6675: 
 6676: =item scantron_validate_file
 6677: 
 6678:     Dispatch routine for doing validation of a bubblesheet data file.
 6679: 
 6680:     Also processes any necessary information resets that need to
 6681:     occur before validation begins (ignore previous corrections,
 6682:     restarting the skipped records processing)
 6683: 
 6684: =cut
 6685: 
 6686: sub scantron_validate_file {
 6687:     my ($r,$symb) = @_;
 6688:     if (!$symb) {return '';}
 6689:     my $default_form_data=&defaultFormData($symb);
 6690:     
 6691:     # do the detection of only doing skipped records first befroe we delete
 6692:     # them when doing the corrections reset
 6693:     if ($env{'form.scantron_options_redo'} ne 'redo_skipped_ready') {
 6694: 	&reset_skipping_status();
 6695:     }
 6696:     if ($env{'form.scantron_options_redo'} eq 'redo_skipped') {
 6697: 	&remember_current_skipped();
 6698: 	$env{'form.scantron_options_redo'}='redo_skipped_ready';
 6699:     }
 6700: 
 6701:     if ($env{'form.scantron_options_ignore'} eq 'ignore_corrections') {
 6702: 	&check_for_error($r,&scantron_remove_file('corrected'));
 6703: 	&check_for_error($r,&scantron_remove_file('skipped'));
 6704: 	&check_for_error($r,&scantron_remove_scan_data());
 6705: 	$env{'form.scantron_options_ignore'}='done';
 6706:     }
 6707: 
 6708:     if ($env{'form.scantron_corrections'}) {
 6709: 	&scantron_process_corrections($r);
 6710:     }
 6711:     $r->print('<p>'.&mt('Gathering necessary information.').'</p>');$r->rflush();
 6712:     #get the student pick code ready
 6713:     $r->print(&Apache::loncommon::studentbrowser_javascript());
 6714:     my $nav_error;
 6715:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 6716:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 6717:     if ($nav_error) {
 6718:         $r->print(&navmap_errormsg());
 6719:         return '';
 6720:     }
 6721:     my $result=&scantron_form_start($max_bubble).$default_form_data;
 6722:     if ($env{'form.scantron_lastbubblepoints'} ne '') {
 6723:         $result .= '<input type="hidden" name="scantron_lastbubblepoints" value="'.$env{'form.scantron_lastbubblepoints'}.'" />';
 6724:     }
 6725:     $r->print($result);
 6726:     
 6727:     my @validate_phases=( 'sequence',
 6728: 			  'ID',
 6729: 			  'CODE',
 6730: 			  'doublebubble',
 6731: 			  'missingbubbles');
 6732:     if (!$env{'form.validatepass'}) {
 6733: 	$env{'form.validatepass'} = 0;
 6734:     }
 6735:     my $currentphase=$env{'form.validatepass'};
 6736: 
 6737: 
 6738:     my $stop=0;
 6739:     while (!$stop && $currentphase < scalar(@validate_phases)) {
 6740: 	$r->print(&mt('Validating '.$validate_phases[$currentphase]).'<br />');
 6741: 	$r->rflush();
 6742:      
 6743: 	my $which="scantron_validate_".$validate_phases[$currentphase];
 6744: 	{
 6745: 	    no strict 'refs';
 6746: 	    ($stop,$currentphase)=&$which($r,$currentphase);
 6747: 	}
 6748:     }
 6749:     if (!$stop) {
 6750: 	my $warning=&scantron_warning_screen('Start Grading',$symb);
 6751: 	$r->print(&mt('Validation process complete.').'<br />'.
 6752:                   $warning.
 6753:                   &mt('Perform verification for each student after storage of submissions?').
 6754:                   '&nbsp;<span class="LC_nobreak"><label>'.
 6755:                   '<input type="radio" name="verifyrecord" value="1" />'.&mt('Yes').'</label>'.
 6756:                   ('&nbsp;'x3).'<label>'.
 6757:                   '<input type="radio" name="verifyrecord" value="0" checked="checked" />'.&mt('No').
 6758:                   '</label></span><br />'.
 6759:                   &mt('Grading will take longer if you use verification.').'<br />'.
 6760:                   &mt('Otherwise, Grade/Manage/Review Bubblesheets [_1] Review bubblesheet data can be used once grading is complete.','&raquo;').'<br /><br />'.
 6761:                   '<input type="submit" name="submit" value="'.&mt('Start Grading').'" />'.
 6762:                   '<input type="hidden" name="command" value="scantron_process" />'."\n");
 6763:     } else {
 6764: 	$r->print('<input type="hidden" name="command" value="scantron_validate" />');
 6765: 	$r->print("<input type='hidden' name='validatepass' value='".$currentphase."' />");
 6766:     }
 6767:     if ($stop) {
 6768: 	if ($validate_phases[$currentphase] eq 'sequence') {
 6769: 	    $r->print('<input type="submit" name="submit" value="'.&mt('Ignore').' &rarr; " />');
 6770: 	    $r->print(' '.&mt('this error').' <br />');
 6771: 
 6772: 	    $r->print('<p>'.&mt('Or return to [_1]Grade/Manage/Review Bubblesheets[_2] to start over.','<a href="/adm/grades?symb='.$symb.'&command=scantron_selectphase" class="LC_info">','</a>').'</p>');
 6773: 	} else {
 6774:             if ($validate_phases[$currentphase] eq 'doublebubble' || $validate_phases[$currentphase] eq 'missingbubbles') {
 6775: 	        $r->print('<input type="button" name="submitbutton" value="'.&mt('Continue').' &rarr;" onclick="javascript:verify_bubble_radio(this.form)" />');
 6776:             } else {
 6777:                 $r->print('<input type="submit" name="submit" value="'.&mt('Continue').' &rarr;" />');
 6778:             }
 6779: 	    $r->print(' '.&mt('using corrected info').' <br />');
 6780: 	    $r->print("<input type='submit' value='".&mt("Skip")."' name='scantron_skip_record' />");
 6781: 	    $r->print(" ".&mt("this scanline saving it for later."));
 6782: 	}
 6783:     }
 6784:     $r->print(" </form><br />");
 6785:     return '';
 6786: }
 6787: 
 6788: 
 6789: =pod
 6790: 
 6791: =item scantron_remove_file
 6792: 
 6793:    Removes the requested bubblesheet data file, makes sure that
 6794:    scantron_original_<filename> is never removed
 6795: 
 6796: 
 6797: =cut
 6798: 
 6799: sub scantron_remove_file {
 6800:     my ($which)=@_;
 6801:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6802:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6803:     my $file='scantron_';
 6804:     if ($which eq 'corrected' || $which eq 'skipped') {
 6805: 	$file.=$which.'_';
 6806:     } else {
 6807: 	return 'refused';
 6808:     }
 6809:     $file.=$env{'form.scantron_selectfile'};
 6810:     return &Apache::lonnet::removeuserfile($cname,$cdom,$file);
 6811: }
 6812: 
 6813: 
 6814: =pod
 6815: 
 6816: =item scantron_remove_scan_data
 6817: 
 6818:    Removes all scan_data correction for the requested bubblesheet
 6819:    data file.  (In the case that both the are doing skipped records we need
 6820:    to remember the old skipped lines for the time being so that element
 6821:    persists for a while.)
 6822: 
 6823: =cut
 6824: 
 6825: sub scantron_remove_scan_data {
 6826:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6827:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6828:     my @keys=&Apache::lonnet::getkeys('nohist_scantrondata',$cdom,$cname);
 6829:     my @todelete;
 6830:     my $filename=$env{'form.scantron_selectfile'};
 6831:     foreach my $key (@keys) {
 6832: 	if ($key=~/^\Q$filename\E_/) {
 6833: 	    if ($env{'form.scantron_options_redo'} eq 'redo_skipped_ready' &&
 6834: 		$key=~/remember_skipping/) {
 6835: 		next;
 6836: 	    }
 6837: 	    push(@todelete,$key);
 6838: 	}
 6839:     }
 6840:     my $result;
 6841:     if (@todelete) {
 6842: 	$result = &Apache::lonnet::del('nohist_scantrondata',
 6843: 				       \@todelete,$cdom,$cname);
 6844:     } else {
 6845: 	$result = 'ok';
 6846:     }
 6847:     return $result;
 6848: }
 6849: 
 6850: 
 6851: =pod
 6852: 
 6853: =item scantron_getfile
 6854: 
 6855:     Fetches the requested bubblesheet data file (all 3 versions), and
 6856:     the scan_data hash
 6857:   
 6858:   Arguments:
 6859:     None
 6860: 
 6861:   Returns:
 6862:     2 hash references
 6863: 
 6864:      - first one has 
 6865:          orig      -
 6866:          corrected -
 6867:          skipped   -  each of which points to an array ref of the specified
 6868:                       file broken up into individual lines
 6869:          count     - number of scanlines
 6870:  
 6871:      - second is the scan_data hash possible keys are
 6872:        ($number refers to scanline numbered $number and thus the key affects
 6873:         only that scanline
 6874:         $bubline refers to the specific bubble line element and the aspects
 6875:         refers to that specific bubble line element)
 6876: 
 6877:        $number.user - username:domain to use
 6878:        $number.CODE_ignore_dup 
 6879:                     - ignore the duplicate CODE error 
 6880:        $number.useCODE
 6881:                     - use the CODE in the scanline as is
 6882:        $number.no_bubble.$bubline
 6883:                     - it is valid that there is no bubbled in bubble
 6884:                       at $number $bubline
 6885:        remember_skipping
 6886:                     - a frozen hash containing keys of $number and values
 6887:                       of either 
 6888:                         1 - we are on a 'do skipped records pass' and plan
 6889:                             on processing this line
 6890:                         2 - we are on a 'do skipped records pass' and this
 6891:                             scanline has been marked to skip yet again
 6892: 
 6893: =cut
 6894: 
 6895: sub scantron_getfile {
 6896:     #FIXME really would prefer a scantron directory
 6897:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6898:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6899:     my $lines;
 6900:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6901: 		       'scantron_orig_'.$env{'form.scantron_selectfile'});
 6902:     my %scanlines;
 6903:     $scanlines{'orig'}=[(split("\n",$lines,-1))];
 6904:     my $temp=$scanlines{'orig'};
 6905:     $scanlines{'count'}=$#$temp;
 6906: 
 6907:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6908: 		       'scantron_corrected_'.$env{'form.scantron_selectfile'});
 6909:     if ($lines eq '-1') {
 6910: 	$scanlines{'corrected'}=[];
 6911:     } else {
 6912: 	$scanlines{'corrected'}=[(split("\n",$lines,-1))];
 6913:     }
 6914:     $lines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.
 6915: 		       'scantron_skipped_'.$env{'form.scantron_selectfile'});
 6916:     if ($lines eq '-1') {
 6917: 	$scanlines{'skipped'}=[];
 6918:     } else {
 6919: 	$scanlines{'skipped'}=[(split("\n",$lines,-1))];
 6920:     }
 6921:     my @tmp=&Apache::lonnet::dump('nohist_scantrondata',$cdom,$cname);
 6922:     if ($tmp[0] =~ /^(error:|no_such_host)/) { @tmp=(); }
 6923:     my %scan_data = @tmp;
 6924:     return (\%scanlines,\%scan_data);
 6925: }
 6926: 
 6927: =pod
 6928: 
 6929: =item lonnet_putfile
 6930: 
 6931:    Wrapper routine to call &Apache::lonnet::finishuserfileupload
 6932: 
 6933:  Arguments:
 6934:    $contents - data to store
 6935:    $filename - filename to store $contents into
 6936: 
 6937:  Returns:
 6938:    result value from &Apache::lonnet::finishuserfileupload
 6939: 
 6940: =cut
 6941: 
 6942: sub lonnet_putfile {
 6943:     my ($contents,$filename)=@_;
 6944:     my $docuname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6945:     my $docudom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6946:     $env{'form.sillywaytopassafilearound'}=$contents;
 6947:     &Apache::lonnet::finishuserfileupload($docuname,$docudom,'sillywaytopassafilearound',$filename);
 6948: 
 6949: }
 6950: 
 6951: =pod
 6952: 
 6953: =item scantron_putfile
 6954: 
 6955:     Stores the current version of the bubblesheet data files, and the
 6956:     scan_data hash. (Does not modify the original version only the
 6957:     corrected and skipped versions.
 6958: 
 6959:  Arguments:
 6960:     $scanlines - hash ref that looks like the first return value from
 6961:                  &scantron_getfile()
 6962:     $scan_data - hash ref that looks like the second return value from
 6963:                  &scantron_getfile()
 6964: 
 6965: =cut
 6966: 
 6967: sub scantron_putfile {
 6968:     my ($scanlines,$scan_data) = @_;
 6969:     #FIXME really would prefer a scantron directory
 6970:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 6971:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 6972:     if ($scanlines) {
 6973: 	my $prefix='scantron_';
 6974: # no need to update orig, shouldn't change
 6975: #   &lonnet_putfile(join("\n",@{$scanlines->{'orig'}}),$prefix.'orig_'.
 6976: #		    $env{'form.scantron_selectfile'});
 6977: 	&lonnet_putfile(join("\n",@{$scanlines->{'corrected'}}),
 6978: 			$prefix.'corrected_'.
 6979: 			$env{'form.scantron_selectfile'});
 6980: 	&lonnet_putfile(join("\n",@{$scanlines->{'skipped'}}),
 6981: 			$prefix.'skipped_'.
 6982: 			$env{'form.scantron_selectfile'});
 6983:     }
 6984:     &Apache::lonnet::put('nohist_scantrondata',$scan_data,$cdom,$cname);
 6985: }
 6986: 
 6987: =pod
 6988: 
 6989: =item scantron_get_line
 6990: 
 6991:    Returns the correct version of the scanline
 6992: 
 6993:  Arguments:
 6994:     $scanlines - hash ref that looks like the first return value from
 6995:                  &scantron_getfile()
 6996:     $scan_data - hash ref that looks like the second return value from
 6997:                  &scantron_getfile()
 6998:     $i         - number of the requested line (starts at 0)
 6999: 
 7000:  Returns:
 7001:    A scanline, (either the original or the corrected one if it
 7002:    exists), or undef if the requested scanline should be
 7003:    skipped. (Either because it's an skipped scanline, or it's an
 7004:    unskipped scanline and we are not doing a 'do skipped scanlines'
 7005:    pass.
 7006: 
 7007: =cut
 7008: 
 7009: sub scantron_get_line {
 7010:     my ($scanlines,$scan_data,$i)=@_;
 7011:     if (&should_be_skipped($scanlines,$scan_data,$i)) { return undef; }
 7012:     #if ($scanlines->{'skipped'}[$i]) { return undef; }
 7013:     if ($scanlines->{'corrected'}[$i]) {return $scanlines->{'corrected'}[$i];}
 7014:     return $scanlines->{'orig'}[$i]; 
 7015: }
 7016: 
 7017: =pod
 7018: 
 7019: =item scantron_todo_count
 7020: 
 7021:     Counts the number of scanlines that need processing.
 7022: 
 7023:  Arguments:
 7024:     $scanlines - hash ref that looks like the first return value from
 7025:                  &scantron_getfile()
 7026:     $scan_data - hash ref that looks like the second return value from
 7027:                  &scantron_getfile()
 7028: 
 7029:  Returns:
 7030:     $count - number of scanlines to process
 7031: 
 7032: =cut
 7033: 
 7034: sub get_todo_count {
 7035:     my ($scanlines,$scan_data)=@_;
 7036:     my $count=0;
 7037:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7038: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7039: 	if ($line=~/^[\s\cz]*$/) { next; }
 7040: 	$count++;
 7041:     }
 7042:     return $count;
 7043: }
 7044: 
 7045: =pod
 7046: 
 7047: =item scantron_put_line
 7048: 
 7049:     Updates the 'corrected' or 'skipped' versions of the bubblesheet
 7050:     data file.
 7051: 
 7052:  Arguments:
 7053:     $scanlines - hash ref that looks like the first return value from
 7054:                  &scantron_getfile()
 7055:     $scan_data - hash ref that looks like the second return value from
 7056:                  &scantron_getfile()
 7057:     $i         - line number to update
 7058:     $newline   - contents of the updated scanline
 7059:     $skip      - if true make the line for skipping and update the
 7060:                  'skipped' file
 7061: 
 7062: =cut
 7063: 
 7064: sub scantron_put_line {
 7065:     my ($scanlines,$scan_data,$i,$newline,$skip)=@_;
 7066:     if ($skip) {
 7067: 	$scanlines->{'skipped'}[$i]=$newline;
 7068: 	&start_skipping($scan_data,$i);
 7069: 	return;
 7070:     }
 7071:     $scanlines->{'corrected'}[$i]=$newline;
 7072: }
 7073: 
 7074: =pod
 7075: 
 7076: =item scantron_clear_skip
 7077: 
 7078:    Remove a line from the 'skipped' file
 7079: 
 7080:  Arguments:
 7081:     $scanlines - hash ref that looks like the first return value from
 7082:                  &scantron_getfile()
 7083:     $scan_data - hash ref that looks like the second return value from
 7084:                  &scantron_getfile()
 7085:     $i         - line number to update
 7086: 
 7087: =cut
 7088: 
 7089: sub scantron_clear_skip {
 7090:     my ($scanlines,$scan_data,$i)=@_;
 7091:     if (exists($scanlines->{'skipped'}[$i])) {
 7092: 	undef($scanlines->{'skipped'}[$i]);
 7093: 	return 1;
 7094:     }
 7095:     return 0;
 7096: }
 7097: 
 7098: =pod
 7099: 
 7100: =item scantron_filter_not_exam
 7101: 
 7102:    Filter routine used by &Apache::lonnavmaps::retrieveResources(), to
 7103:    filter out resources that are not marked as 'exam' mode
 7104: 
 7105: =cut
 7106: 
 7107: sub scantron_filter_not_exam {
 7108:     my ($curres)=@_;
 7109:     
 7110:     if (ref($curres) && $curres->is_problem() && !$curres->is_exam()) {
 7111: 	# if the user has asked to not have either hidden
 7112: 	# or 'randomout' controlled resources to be graded
 7113: 	# don't include them
 7114: 	if ($env{'form.scantron_options_hidden'} eq 'ignore_hidden'
 7115: 	    && $curres->randomout) {
 7116: 	    return 0;
 7117: 	}
 7118: 	return 1;
 7119:     }
 7120:     return 0;
 7121: }
 7122: 
 7123: =pod
 7124: 
 7125: =item scantron_validate_sequence
 7126: 
 7127:     Validates the selected sequence, checking for resource that are
 7128:     not set to exam mode.
 7129: 
 7130: =cut
 7131: 
 7132: sub scantron_validate_sequence {
 7133:     my ($r,$currentphase) = @_;
 7134: 
 7135:     my $navmap=Apache::lonnavmaps::navmap->new();
 7136:     unless (ref($navmap)) {
 7137:         $r->print(&navmap_errormsg());
 7138:         return (1,$currentphase);
 7139:     }
 7140:     my (undef,undef,$sequence)=
 7141: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7142: 
 7143:     my $map=$navmap->getResourceByUrl($sequence);
 7144: 
 7145:     $r->print('<input type="hidden" name="validate_sequence_exam"
 7146:                                     value="ignore" />');
 7147:     if ($env{'form.validate_sequence_exam'} ne 'ignore') {
 7148: 	my @resources=
 7149: 	    $navmap->retrieveResources($map,\&scantron_filter_not_exam,1,0);
 7150: 	if (@resources) {
 7151: 	    $r->print(
 7152:                 '<p class="LC_warning">'
 7153:                .&mt('Some resources in the sequence currently are not set to'
 7154:                    .' bubblesheet exam mode. Grading these resources currently may not'
 7155:                    .' work correctly.')
 7156:                .'</p>'
 7157:             );
 7158: 	    return (1,$currentphase);
 7159: 	}
 7160:     }
 7161: 
 7162:     return (0,$currentphase+1);
 7163: }
 7164: 
 7165: 
 7166: 
 7167: sub scantron_validate_ID {
 7168:     my ($r,$currentphase) = @_;
 7169:     
 7170:     #get student info
 7171:     my $classlist=&Apache::loncoursedata::get_classlist();
 7172:     my %idmap=&username_to_idmap($classlist);
 7173: 
 7174:     #get scantron line setup
 7175:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7176:     my ($scanlines,$scan_data)=&scantron_getfile();
 7177: 
 7178:     my $nav_error;
 7179:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble_lines.. array.
 7180:     if ($nav_error) {
 7181:         $r->print(&navmap_errormsg());
 7182:         return(1,$currentphase);
 7183:     }
 7184: 
 7185:     my %found=('ids'=>{},'usernames'=>{});
 7186:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7187: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7188: 	if ($line=~/^[\s\cz]*$/) { next; }
 7189: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7190: 						 $scan_data);
 7191: 	my $id=$$scan_record{'scantron.ID'};
 7192: 	my $found;
 7193: 	foreach my $checkid (keys(%idmap)) {
 7194: 	    if (lc($checkid) eq lc($id)) { $found=$checkid;last; }
 7195: 	}
 7196: 	if ($found) {
 7197: 	    my $username=$idmap{$found};
 7198: 	    if ($found{'ids'}{$found}) {
 7199: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7200: 					 $line,'duplicateID',$found);
 7201: 		return(1,$currentphase);
 7202: 	    } elsif ($found{'usernames'}{$username}) {
 7203: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7204: 					 $line,'duplicateID',$username);
 7205: 		return(1,$currentphase);
 7206: 	    }
 7207: 	    #FIXME store away line we previously saw the ID on to use above
 7208: 	    $found{'ids'}{$found}++;
 7209: 	    $found{'usernames'}{$username}++;
 7210: 	} else {
 7211: 	    if ($id =~ /^\s*$/) {
 7212: 		my $username=&scan_data($scan_data,"$i.user");
 7213: 		if (defined($username) && $found{'usernames'}{$username}) {
 7214: 		    &scantron_get_correction($r,$i,$scan_record,
 7215: 					     \%scantron_config,
 7216: 					     $line,'duplicateID',$username);
 7217: 		    return(1,$currentphase);
 7218: 		} elsif (!defined($username)) {
 7219: 		    &scantron_get_correction($r,$i,$scan_record,
 7220: 					     \%scantron_config,
 7221: 					     $line,'incorrectID');
 7222: 		    return(1,$currentphase);
 7223: 		}
 7224: 		$found{'usernames'}{$username}++;
 7225: 	    } else {
 7226: 		&scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 7227: 					 $line,'incorrectID');
 7228: 		return(1,$currentphase);
 7229: 	    }
 7230: 	}
 7231:     }
 7232: 
 7233:     return (0,$currentphase+1);
 7234: }
 7235: 
 7236: 
 7237: sub scantron_get_correction {
 7238:     my ($r,$i,$scan_record,$scan_config,$line,$error,$arg,
 7239:         $randomorder,$randompick,$respnumlookup,$startline)=@_;
 7240: #FIXME in the case of a duplicated ID the previous line, probably need
 7241: #to show both the current line and the previous one and allow skipping
 7242: #the previous one or the current one
 7243: 
 7244:     if ( $$scan_record{'scantron.PaperID'} =~ /\S/) {
 7245:         $r->print(
 7246:             '<p class="LC_warning">'
 7247:            .&mt('An error was detected ([_1]) for PaperID [_2]',
 7248:                 "<b>$error</b>",
 7249:                 '<tt>'.$$scan_record{'scantron.PaperID'}.'</tt>')
 7250:            ."</p> \n");
 7251:     } else {
 7252:         $r->print(
 7253:             '<p class="LC_warning">'
 7254:            .&mt('An error was detected ([_1]) in scanline [_2] [_3]',
 7255:                 "<b>$error</b>", $i, "<pre>$line</pre>")
 7256:            ."</p> \n");
 7257:     }
 7258:     my $message =
 7259:         '<p>'
 7260:        .&mt('The ID on the form is [_1]',
 7261:             "<tt>$$scan_record{'scantron.ID'}</tt>")
 7262:        .'<br />'
 7263:        .&mt('The name on the paper is [_1], [_2]',
 7264:             $$scan_record{'scantron.LastName'},
 7265:             $$scan_record{'scantron.FirstName'})
 7266:        .'</p>';
 7267: 
 7268:     $r->print('<input type="hidden" name="scantron_corrections" value="'.$error.'" />'."\n");
 7269:     $r->print('<input type="hidden" name="scantron_line" value="'.$i.'" />'."\n");
 7270:                            # Array populated for doublebubble or
 7271:     my @lines_to_correct;  # missingbubble errors to build javascript
 7272:                            # to validate radio button checking   
 7273: 
 7274:     if ($error =~ /ID$/) {
 7275: 	if ($error eq 'incorrectID') {
 7276:             $r->print('<p class="LC_warning">'.&mt("The encoded ID is not in the classlist").
 7277: 		      "</p>\n");
 7278: 	} elsif ($error eq 'duplicateID') {
 7279:             $r->print('<p class="LC_warning">'.&mt("The encoded ID has also been used by a previous paper [_1]",$arg)."</p>\n");
 7280: 	}
 7281: 	$r->print($message);
 7282: 	$r->print("<p>".&mt("How should I handle this?")." <br /> \n");
 7283: 	$r->print("\n<ul><li> ");
 7284: 	#FIXME it would be nice if this sent back the user ID and
 7285: 	#could do partial userID matches
 7286: 	$r->print(&Apache::loncommon::selectstudent_link('scantronupload',
 7287: 				       'scantron_username','scantron_domain'));
 7288: 	$r->print(": <input type='text' name='scantron_username' value='' />");
 7289: 	$r->print("\n:\n".
 7290: 		 &Apache::loncommon::select_dom_form($env{'request.role.domain'},'scantron_domain'));
 7291: 
 7292: 	$r->print('</li>');
 7293:     } elsif ($error =~ /CODE$/) {
 7294: 	if ($error eq 'incorrectCODE') {
 7295: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE is not in the list of possible CODEs.")."</p>\n");
 7296: 	} elsif ($error eq 'duplicateCODE') {
 7297: 	    $r->print('<p class="LC_warning">'.&mt("The encoded CODE has also been used by a previous paper [_1], and CODEs are supposed to be unique.",join(', ',@{$arg}))."</p>\n");
 7298: 	}
 7299: 	$r->print("<p>".&mt('The CODE on the form is [_1]',
 7300: 			    "<tt>'$$scan_record{'scantron.CODE'}'</tt>")
 7301:                  ."</p>\n");
 7302: 	$r->print($message);
 7303: 	$r->print("<p>".&mt("How should I handle this?")."</p>\n");
 7304: 	$r->print("\n<br /> ");
 7305: 	my $i=0;
 7306: 	if ($error eq 'incorrectCODE' 
 7307: 	    && $$scan_record{'scantron.CODE'}=~/\S/ ) {
 7308: 	    my ($max,$closest)=&scantron_get_closely_matching_CODEs($arg,$$scan_record{'scantron.CODE'});
 7309: 	    if ($closest > 0) {
 7310: 		foreach my $testcode (@{$closest}) {
 7311: 		    my $checked='';
 7312: 		    if (!$i) { $checked=' checked="checked"'; }
 7313: 		    $r->print("
 7314:    <label>
 7315:        <input type='radio' name='scantron_CODE_resolution' value='use_closest_$i'$checked />
 7316:        ".&mt("Use the similar CODE [_1] instead.",
 7317: 	    "<b><tt>".$testcode."</tt></b>")."
 7318:     </label>
 7319:     <input type='hidden' name='scantron_CODE_closest_$i' value='$testcode' />");
 7320: 		    $r->print("\n<br />");
 7321: 		    $i++;
 7322: 		}
 7323: 	    }
 7324: 	}
 7325: 	if ($$scan_record{'scantron.CODE'}=~/\S/ ) {
 7326: 	    my $checked; if (!$i) { $checked=' checked="checked"'; }
 7327: 	    $r->print("
 7328:     <label>
 7329:         <input type='radio' name='scantron_CODE_resolution' value='use_unfound'$checked />
 7330:        ".&mt("Use the CODE [_1] that was on the paper, ignoring the error.",
 7331: 	     "<b><tt>".$$scan_record{'scantron.CODE'}."</tt></b>")."
 7332:     </label>");
 7333: 	    $r->print("\n<br />");
 7334: 	}
 7335: 
 7336: 	$r->print(&Apache::lonhtmlcommon::scripttag(<<ENDSCRIPT));
 7337: function change_radio(field) {
 7338:     var slct=document.scantronupload.scantron_CODE_resolution;
 7339:     var i;
 7340:     for (i=0;i<slct.length;i++) {
 7341:         if (slct[i].value==field) { slct[i].checked=true; }
 7342:     }
 7343: }
 7344: ENDSCRIPT
 7345: 	my $href="/adm/pickcode?".
 7346: 	   "form=".&escape("scantronupload").
 7347: 	   "&scantron_format=".&escape($env{'form.scantron_format'}).
 7348: 	   "&scantron_CODElist=".&escape($env{'form.scantron_CODElist'}).
 7349: 	   "&curCODE=".&escape($$scan_record{'scantron.CODE'}).
 7350: 	   "&scantron_selectfile=".&escape($env{'form.scantron_selectfile'});
 7351: 	if ($env{'form.scantron_CODElist'} =~ /\S/) { 
 7352: 	    $r->print("
 7353:     <label>
 7354:        <input type='radio' name='scantron_CODE_resolution' value='use_found' />
 7355:        ".&mt("[_1]Select[_2] a CODE from the list of all CODEs and use it.",
 7356: 	     "<a target='_blank' href='$href'>","</a>")."
 7357:     </label> 
 7358:     ".&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\')" />'));
 7359: 	    $r->print("\n<br />");
 7360: 	}
 7361: 	$r->print("
 7362:     <label>
 7363:        <input type='radio' name='scantron_CODE_resolution' value='use_typed' />
 7364:        ".&mt("Use [_1] as the CODE.",
 7365: 	     "</label><input type='text' size='8' name='scantron_CODE_newvalue' onfocus=\"javascript:change_radio('use_typed')\" onkeypress=\"javascript:change_radio('use_typed')\" />"));
 7366: 	$r->print("\n<br /><br />");
 7367:     } elsif ($error eq 'doublebubble') {
 7368: 	$r->print('<p class="LC_warning">'.&mt("There have been multiple bubbles scanned for some question(s)")."</p>\n");
 7369: 
 7370: 	# The form field scantron_questions is acutally a list of line numbers.
 7371: 	# represented by this form so:
 7372: 
 7373: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7374:                                                 $respnumlookup,$startline);
 7375: 
 7376: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7377: 		  $line_list.'" />');
 7378: 	$r->print($message);
 7379: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading")."</p>");
 7380: 	foreach my $question (@{$arg}) {
 7381: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7382:                                                    $scan_record, $error,
 7383:                                                    $randomorder,$randompick,
 7384:                                                    $respnumlookup,$startline);
 7385:             push(@lines_to_correct,@linenums);
 7386: 	}
 7387:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7388:     } elsif ($error eq 'missingbubble') {
 7389: 	$r->print('<p class="LC_warning">'.&mt("There have been [_1]no[_2] bubbles scanned for some question(s)",'<b>','</b>')."</p>\n");
 7390: 	$r->print($message);
 7391: 	$r->print("<p>".&mt("Please indicate which bubble should be used for grading.")."</p>");
 7392: 	$r->print(&mt("Some questions have no scanned bubbles.")."\n");
 7393: 
 7394: 	# The form field scantron_questions is actually a list of line numbers not
 7395: 	# a list of question numbers. Therefore:
 7396: 	#
 7397: 
 7398: 	my $line_list = &questions_to_line_list($arg,$randomorder,$randompick,
 7399:                                                 $respnumlookup,$startline);
 7400: 
 7401: 	$r->print('<input type="hidden" name="scantron_questions" value="'.
 7402: 		  $line_list.'" />');
 7403: 	foreach my $question (@{$arg}) {
 7404: 	    my @linenums = &prompt_for_corrections($r,$question,$scan_config,
 7405:                                                    $scan_record, $error,
 7406:                                                    $randomorder,$randompick,
 7407:                                                    $respnumlookup,$startline);
 7408:             push(@lines_to_correct,@linenums);
 7409: 	}
 7410:         $r->print(&verify_bubbles_checked(@lines_to_correct));
 7411:     } else {
 7412: 	$r->print("\n<ul>");
 7413:     }
 7414:     $r->print("\n</li></ul>");
 7415: }
 7416: 
 7417: sub verify_bubbles_checked {
 7418:     my (@ansnums) = @_;
 7419:     my $ansnumstr = join('","',@ansnums);
 7420:     my $warning = &mt("A bubble or 'No bubble' selection has not been made for one or more lines.");
 7421:     my $output = &Apache::lonhtmlcommon::scripttag((<<ENDSCRIPT));
 7422: function verify_bubble_radio(form) {
 7423:     var ansnumArray = new Array ("$ansnumstr");
 7424:     var need_bubble_count = 0;
 7425:     for (var i=0; i<ansnumArray.length; i++) {
 7426:         if (form.elements["scantron_correct_Q_"+ansnumArray[i]].length > 1) {
 7427:             var bubble_picked = 0; 
 7428:             for (var j=0; j<form.elements["scantron_correct_Q_"+ansnumArray[i]].length; j++) {
 7429:                 if (form.elements["scantron_correct_Q_"+ansnumArray[i]][j].checked == true) {
 7430:                     bubble_picked = 1;
 7431:                 }
 7432:             }
 7433:             if (bubble_picked == 0) {
 7434:                 need_bubble_count ++;
 7435:             }
 7436:         }
 7437:     }
 7438:     if (need_bubble_count) {
 7439:         alert("$warning");
 7440:         return;
 7441:     }
 7442:     form.submit(); 
 7443: }
 7444: ENDSCRIPT
 7445:     return $output;
 7446: }
 7447: 
 7448: =pod
 7449: 
 7450: =item  questions_to_line_list
 7451: 
 7452: Converts a list of questions into a string of comma separated
 7453: line numbers in the answer sheet used by the questions.  This is
 7454: used to fill in the scantron_questions form field.
 7455: 
 7456:   Arguments:
 7457:      questions    - Reference to an array of questions.
 7458:      randomorder  - True if randomorder in use.
 7459:      randompick   - True if randompick in use.
 7460:      respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7461:                      for current line to question number used for same question
 7462:                      in "Master Seqence" (as seen by Course Coordinator).
 7463:      startline    - Reference to hash where key is question number (0 is first)
 7464:                     and key is number of first bubble line for current student
 7465:                     or code-based randompick and/or randomorder.
 7466: 
 7467: =cut
 7468: 
 7469: 
 7470: sub questions_to_line_list {
 7471:     my ($questions,$randomorder,$randompick,$respnumlookup,$startline) = @_;
 7472:     my @lines;
 7473: 
 7474:     foreach my $item (@{$questions}) {
 7475:         my $question = $item;
 7476:         my ($first,$count,$last);
 7477:         if ($item =~ /^(\d+)\.(\d+)$/) {
 7478:             $question = $1;
 7479:             my $subquestion = $2;
 7480:             my $responsenum = $question-1;
 7481:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7482:                 $responsenum = $respnumlookup->{$question-1};
 7483:                 if (ref($startline) eq 'HASH') {
 7484:                     $first = $startline->{$question-1} + 1;
 7485:                 }
 7486:             } else {
 7487:                 $first = $first_bubble_line{$responsenum} + 1;
 7488:             }
 7489:             my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7490:             my $subcount = 1;
 7491:             while ($subcount<$subquestion) {
 7492:                 $first += $subans[$subcount-1];
 7493:                 $subcount ++;
 7494:             }
 7495:             $count = $subans[$subquestion-1];
 7496:         } else {
 7497:             my $responsenum = $question-1;
 7498:             if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7499:                 $responsenum = $respnumlookup->{$question-1};
 7500:                 if (ref($startline) eq 'HASH') {
 7501:                     $first = $startline->{$question-1} + 1;
 7502:                 }
 7503:             } else {
 7504:                 $first = $first_bubble_line{$responsenum} + 1;
 7505:             }
 7506: 	    $count   = $bubble_lines_per_response{$responsenum};
 7507:         }
 7508:         $last = $first+$count-1;
 7509:         push(@lines, ($first..$last));
 7510:     }
 7511:     return join(',', @lines);
 7512: }
 7513: 
 7514: =pod 
 7515: 
 7516: =item prompt_for_corrections
 7517: 
 7518: Prompts for a potentially multiline correction to the
 7519: user's bubbling (factors out common code from scantron_get_correction
 7520: for multi and missing bubble cases).
 7521: 
 7522:  Arguments:
 7523:    $r           - Apache request object.
 7524:    $question    - The question number to prompt for.
 7525:    $scan_config - The scantron file configuration hash.
 7526:    $scan_record - Reference to the hash that has the the parsed scanlines.
 7527:    $error       - Type of error
 7528:    $randomorder - True if randomorder in use.
 7529:    $randompick  - True if randompick in use.
 7530:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
 7531:                     for current line to question number used for same question
 7532:                     in "Master Seqence" (as seen by Course Coordinator).
 7533:    $startline   - Reference to hash where key is question number (0 is first)
 7534:                   and value is number of first bubble line for current student
 7535:                   or code-based randompick and/or randomorder.
 7536: 
 7537: 
 7538:  Implicit inputs:
 7539:    %bubble_lines_per_response   - Starting line numbers for each question.
 7540:                                   Numbered from 0 (but question numbers are from
 7541:                                   1.
 7542:    %first_bubble_line           - Starting bubble line for each question.
 7543:    %subdivided_bubble_lines     - optionresponse, matchresponse and rankresponse 
 7544:                                   type problems render as separate sub-questions, 
 7545:                                   in exam mode. This hash contains a 
 7546:                                   comma-separated list of the lines per 
 7547:                                   sub-question.
 7548:    %responsetype_per_response   - essayresponse, formularesponse,
 7549:                                   stringresponse, imageresponse, reactionresponse,
 7550:                                   and organicresponse type problem parts can have
 7551:                                   multiple lines per response if the weight
 7552:                                   assigned exceeds 10.  In this case, only
 7553:                                   one bubble per line is permitted, but more 
 7554:                                   than one line might contain bubbles, e.g.
 7555:                                   bubbling of: line 1 - J, line 2 - J, 
 7556:                                   line 3 - B would assign 22 points.  
 7557: 
 7558: =cut
 7559: 
 7560: sub prompt_for_corrections {
 7561:     my ($r, $question, $scan_config, $scan_record, $error, $randomorder,
 7562:         $randompick, $respnumlookup, $startline) = @_;
 7563:     my ($current_line,$lines);
 7564:     my @linenums;
 7565:     my $questionnum = $question;
 7566:     my ($first,$responsenum);
 7567:     if ($question =~ /^(\d+)\.(\d+)$/) {
 7568:         $question = $1;
 7569:         my $subquestion = $2;
 7570:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7571:             $responsenum = $respnumlookup->{$question-1};
 7572:             if (ref($startline) eq 'HASH') {
 7573:                 $first = $startline->{$question-1};
 7574:             }
 7575:         } else {
 7576:             $responsenum = $question-1;
 7577:             $first = $first_bubble_line{$responsenum} + 1;
 7578:         }
 7579:         $current_line = $first + 1 ;
 7580:         my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 7581:         my $subcount = 1;
 7582:         while ($subcount<$subquestion) {
 7583:             $current_line += $subans[$subcount-1];
 7584:             $subcount ++;
 7585:         }
 7586:         $lines = $subans[$subquestion-1];
 7587:     } else {
 7588:         if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH')) {
 7589:             $responsenum = $respnumlookup->{$question-1};
 7590:             if (ref($startline) eq 'HASH') { 
 7591:                 $first = $startline->{$question-1};
 7592:             }
 7593:         } else {
 7594:             $responsenum = $question-1;
 7595:             $first = $first_bubble_line{$responsenum};
 7596:         }
 7597:         $current_line = $first + 1;
 7598:         $lines        = $bubble_lines_per_response{$responsenum};
 7599:     }
 7600:     if ($lines > 1) {
 7601:         $r->print(&mt('The group of bubble lines below responds to a single question.').'<br />');
 7602:         if (($responsetype_per_response{$responsenum} eq 'essayresponse') ||
 7603:             ($responsetype_per_response{$responsenum} eq 'formularesponse') ||
 7604:             ($responsetype_per_response{$responsenum} eq 'stringresponse') ||
 7605:             ($responsetype_per_response{$responsenum} eq 'imageresponse') ||
 7606:             ($responsetype_per_response{$responsenum} eq 'reactionresponse') ||
 7607:             ($responsetype_per_response{$responsenum} eq 'organicresponse')) {
 7608:             $r->print(
 7609:                 &mt("Although this particular question type requires handgrading, the instructions for this question in the bubblesheet exam directed students to leave [quant,_1,line] blank on their bubblesheets.",$lines)
 7610:                .'<br /><br />'
 7611:                .&mt('A non-zero score can be assigned to the student during bubblesheet grading by selecting a bubble in at least one line.')
 7612:                .'<br />'
 7613:                .&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.')
 7614:                .'<br />'
 7615:                .&mt("To assign a score of zero for this question, mark all lines as 'No bubble'.")
 7616:                .'<br /><br />'
 7617:             );
 7618:         } else {
 7619:             $r->print(&mt("Select at most one bubble in a single line and select 'No Bubble' in all the other lines. ")."<br />");
 7620:         }
 7621:     }
 7622:     for (my $i =0; $i < $lines; $i++) {
 7623:         my $selected = $$scan_record{"scantron.$current_line.answer"};
 7624: 	&scantron_bubble_selector($r,$scan_config,$current_line,
 7625: 	        		  $questionnum,$error,split('', $selected));
 7626:         push(@linenums,$current_line);
 7627: 	$current_line++;
 7628:     }
 7629:     if ($lines > 1) {
 7630: 	$r->print("<hr /><br />");
 7631:     }
 7632:     return @linenums;
 7633: }
 7634: 
 7635: =pod
 7636: 
 7637: =item scantron_bubble_selector
 7638:   
 7639:    Generates the html radiobuttons to correct a single bubble line
 7640:    possibly showing the existing the selected bubbles if known
 7641: 
 7642:  Arguments:
 7643:     $r           - Apache request object
 7644:     $scan_config - hash from &get_scantron_config()
 7645:     $line        - Number of the line being displayed.
 7646:     $questionnum - Question number (may include subquestion)
 7647:     $error       - Type of error.
 7648:     @selected    - Array of bubbles picked on this line.
 7649: 
 7650: =cut
 7651: 
 7652: sub scantron_bubble_selector {
 7653:     my ($r,$scan_config,$line,$questionnum,$error,@selected)=@_;
 7654:     my $max=$$scan_config{'Qlength'};
 7655: 
 7656:     my $scmode=$$scan_config{'Qon'};
 7657:     if ($scmode eq 'number' || $scmode eq 'letter') { 
 7658:         if (($$scan_config{'BubblesPerRow'} =~ /^\d+$/) &&
 7659:             ($$scan_config{'BubblesPerRow'} > 0)) {
 7660:             $max=$$scan_config{'BubblesPerRow'};
 7661:             if (($scmode eq 'number') && ($max > 10)) {
 7662:                 $max = 10;
 7663:             } elsif (($scmode eq 'letter') && $max > 26) {
 7664:                 $max = 26;
 7665:             }
 7666:         } else {
 7667:             $max = 10;
 7668:         }
 7669:     }
 7670: 
 7671:     my @alphabet=('A'..'Z');
 7672:     $r->print(&Apache::loncommon::start_data_table().
 7673:               &Apache::loncommon::start_data_table_row());
 7674:     $r->print('<td rowspan="2" class="LC_leftcol_header">'.$line.'</td>');
 7675:     for (my $i=0;$i<$max+1;$i++) {
 7676: 	$r->print("\n".'<td align="center">');
 7677: 	if ($selected[0] eq $alphabet[$i]) { $r->print('X'); shift(@selected) }
 7678: 	else { $r->print('&nbsp;'); }
 7679: 	$r->print('</td>');
 7680:     }
 7681:     $r->print(&Apache::loncommon::end_data_table_row().
 7682:               &Apache::loncommon::start_data_table_row());
 7683:     for (my $i=0;$i<$max;$i++) {
 7684: 	$r->print("\n".
 7685: 		  '<td><label><input type="radio" name="scantron_correct_Q_'.
 7686: 		  $line.'" value="'.$i.'" />'.$alphabet[$i]."</label></td>");
 7687:     }
 7688:     my $nobub_checked = ' ';
 7689:     if ($error eq 'missingbubble') {
 7690:         $nobub_checked = ' checked = "checked" ';
 7691:     }
 7692:     $r->print("\n".'<td><label><input type="radio" name="scantron_correct_Q_'.
 7693: 	      $line.'" value="none"'.$nobub_checked.'/>'.&mt('No bubble').
 7694:               '</label>'."\n".'<input type="hidden" name="scantron_questionnum_Q_'.
 7695:               $line.'" value="'.$questionnum.'" /></td>');
 7696:     $r->print(&Apache::loncommon::end_data_table_row().
 7697:               &Apache::loncommon::end_data_table());
 7698: }
 7699: 
 7700: =pod
 7701: 
 7702: =item num_matches
 7703: 
 7704:    Counts the number of characters that are the same between the two arguments.
 7705: 
 7706:  Arguments:
 7707:    $orig - CODE from the scanline
 7708:    $code - CODE to match against
 7709: 
 7710:  Returns:
 7711:    $count - integer count of the number of same characters between the
 7712:             two arguments
 7713: 
 7714: =cut
 7715: 
 7716: sub num_matches {
 7717:     my ($orig,$code) = @_;
 7718:     my @code=split(//,$code);
 7719:     my @orig=split(//,$orig);
 7720:     my $same=0;
 7721:     for (my $i=0;$i<scalar(@code);$i++) {
 7722: 	if ($code[$i] eq $orig[$i]) { $same++; }
 7723:     }
 7724:     return $same;
 7725: }
 7726: 
 7727: =pod
 7728: 
 7729: =item scantron_get_closely_matching_CODEs
 7730: 
 7731:    Cycles through all CODEs and finds the set that has the greatest
 7732:    number of same characters as the provided CODE
 7733: 
 7734:  Arguments:
 7735:    $allcodes - hash ref returned by &get_codes()
 7736:    $CODE     - CODE from the current scanline
 7737: 
 7738:  Returns:
 7739:    2 element list
 7740:     - first elements is number of how closely matching the best fit is 
 7741:       (5 means best set has 5 matching characters)
 7742:     - second element is an arrary ref containing the set of valid CODEs
 7743:       that best fit the passed in CODE
 7744: 
 7745: =cut
 7746: 
 7747: sub scantron_get_closely_matching_CODEs {
 7748:     my ($allcodes,$CODE)=@_;
 7749:     my @CODEs;
 7750:     foreach my $testcode (sort(keys(%{$allcodes}))) {
 7751: 	push(@{$CODEs[&num_matches($CODE,$testcode)]},$testcode);
 7752:     }
 7753: 
 7754:     return ($#CODEs,$CODEs[-1]);
 7755: }
 7756: 
 7757: =pod
 7758: 
 7759: =item get_codes
 7760: 
 7761:    Builds a hash which has keys of all of the valid CODEs from the selected
 7762:    set of remembered CODEs.
 7763: 
 7764:  Arguments:
 7765:   $old_name - name of the set of remembered CODEs
 7766:   $cdom     - domain of the course
 7767:   $cnum     - internal course name
 7768: 
 7769:  Returns:
 7770:   %allcodes - keys are the valid CODEs, values are all 1
 7771: 
 7772: =cut
 7773: 
 7774: sub get_codes {
 7775:     my ($old_name, $cdom, $cnum) = @_;
 7776:     if (!$old_name) {
 7777: 	$old_name=$env{'form.scantron_CODElist'};
 7778:     }
 7779:     if (!$cdom) {
 7780: 	$cdom =$env{'course.'.$env{'request.course.id'}.'.domain'};
 7781:     }
 7782:     if (!$cnum) {
 7783: 	$cnum =$env{'course.'.$env{'request.course.id'}.'.num'};
 7784:     }
 7785:     my %result=&Apache::lonnet::get('CODEs',[$old_name,"type\0$old_name"],
 7786: 				    $cdom,$cnum);
 7787:     my %allcodes;
 7788:     if ($result{"type\0$old_name"} eq 'number') {
 7789: 	%allcodes=map {($_,1)} split(',',$result{$old_name});
 7790:     } else {
 7791: 	%allcodes=map {(&Apache::lonprintout::num_to_letters($_),1)} split(',',$result{$old_name});
 7792:     }
 7793:     return %allcodes;
 7794: }
 7795: 
 7796: =pod
 7797: 
 7798: =item scantron_validate_CODE
 7799: 
 7800:    Validates all scanlines in the selected file to not have any
 7801:    invalid or underspecified CODEs and that none of the codes are
 7802:    duplicated if this was requested.
 7803: 
 7804: =cut
 7805: 
 7806: sub scantron_validate_CODE {
 7807:     my ($r,$currentphase) = @_;
 7808:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7809:     if ($scantron_config{'CODElocation'} &&
 7810: 	$scantron_config{'CODEstart'} &&
 7811: 	$scantron_config{'CODElength'}) {
 7812: 	if (!defined($env{'form.scantron_CODElist'})) {
 7813: 	    &FIXME_blow_up()
 7814: 	}
 7815:     } else {
 7816: 	return (0,$currentphase+1);
 7817:     }
 7818:     
 7819:     my %usedCODEs;
 7820: 
 7821:     my %allcodes=&get_codes();
 7822: 
 7823:     my $nav_error;
 7824:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the lines per response array.
 7825:     if ($nav_error) {
 7826:         $r->print(&navmap_errormsg());
 7827:         return(1,$currentphase);
 7828:     }
 7829: 
 7830:     my ($scanlines,$scan_data)=&scantron_getfile();
 7831:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7832: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7833: 	if ($line=~/^[\s\cz]*$/) { next; }
 7834: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7835: 						 $scan_data);
 7836: 	my $CODE=$$scan_record{'scantron.CODE'};
 7837: 	my $error=0;
 7838: 	if (!&Apache::lonnet::validCODE($CODE)) {
 7839: 	    &scantron_get_correction($r,$i,$scan_record,
 7840: 				     \%scantron_config,
 7841: 				     $line,'incorrectCODE',\%allcodes);
 7842: 	    return(1,$currentphase);
 7843: 	}
 7844: 	if (%allcodes && !exists($allcodes{$CODE}) 
 7845: 	    && !$$scan_record{'scantron.useCODE'}) {
 7846: 	    &scantron_get_correction($r,$i,$scan_record,
 7847: 				     \%scantron_config,
 7848: 				     $line,'incorrectCODE',\%allcodes);
 7849: 	    return(1,$currentphase);
 7850: 	}
 7851: 	if (exists($usedCODEs{$CODE}) 
 7852: 	    && $env{'form.scantron_CODEunique'} eq 'yes'
 7853: 	    && !$$scan_record{'scantron.CODE_ignore_dup'}) {
 7854: 	    &scantron_get_correction($r,$i,$scan_record,
 7855: 				     \%scantron_config,
 7856: 				     $line,'duplicateCODE',$usedCODEs{$CODE});
 7857: 	    return(1,$currentphase);
 7858: 	}
 7859: 	push(@{$usedCODEs{$CODE}},$$scan_record{'scantron.PaperID'});
 7860:     }
 7861:     return (0,$currentphase+1);
 7862: }
 7863: 
 7864: =pod
 7865: 
 7866: =item scantron_validate_doublebubble
 7867: 
 7868:    Validates all scanlines in the selected file to not have any
 7869:    bubble lines with multiple bubbles marked.
 7870: 
 7871: =cut
 7872: 
 7873: sub scantron_validate_doublebubble {
 7874:     my ($r,$currentphase) = @_;
 7875:     #get student info
 7876:     my $classlist=&Apache::loncoursedata::get_classlist();
 7877:     my %idmap=&username_to_idmap($classlist);
 7878:     my (undef,undef,$sequence)=
 7879:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 7880: 
 7881:     #get scantron line setup
 7882:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 7883:     my ($scanlines,$scan_data)=&scantron_getfile();
 7884: 
 7885:     my $navmap = Apache::lonnavmaps::navmap->new();
 7886:     unless (ref($navmap)) {
 7887:         $r->print(&navmap_errormsg());
 7888:         return(1,$currentphase);
 7889:     }
 7890:     my $map=$navmap->getResourceByUrl($sequence);
 7891:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7892:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 7893:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 7894:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 7895: 
 7896:     my $nav_error;
 7897:     if (ref($map)) {
 7898:         $randomorder = $map->randomorder();
 7899:         $randompick = $map->randompick();
 7900:         if ($randomorder || $randompick) {
 7901:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 7902:             if ($nav_error) {
 7903:                 $r->print(&navmap_errormsg());
 7904:                 return(1,$currentphase);
 7905:             }
 7906:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 7907:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 7908:         }
 7909:     } else {
 7910:         $r->print(&navmap_errormsg());
 7911:         return(1,$currentphase);
 7912:     }
 7913: 
 7914:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # parse needs the bubble line array.
 7915:     if ($nav_error) {
 7916:         $r->print(&navmap_errormsg());
 7917:         return(1,$currentphase);
 7918:     }
 7919: 
 7920:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 7921: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 7922: 	if ($line=~/^[\s\cz]*$/) { next; }
 7923: 	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 7924: 						 $scan_data,undef,\%idmap,$randomorder,
 7925:                                                  $randompick,$sequence,\@master_seq,
 7926:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 7927:                                                  \%orderedforcode,\%respnumlookup,\%startline);
 7928: 	if (!defined($$scan_record{'scantron.doubleerror'})) { next; }
 7929: 	&scantron_get_correction($r,$i,$scan_record,\%scantron_config,$line,
 7930: 				 'doublebubble',
 7931: 				 $$scan_record{'scantron.doubleerror'},
 7932:                                  $randomorder,$randompick,\%respnumlookup,\%startline);
 7933:     	return (1,$currentphase);
 7934:     }
 7935:     return (0,$currentphase+1);
 7936: }
 7937: 
 7938: 
 7939: sub scantron_get_maxbubble {
 7940:     my ($nav_error,$scantron_config) = @_;
 7941:     if (defined($env{'form.scantron_maxbubble'}) &&
 7942: 	$env{'form.scantron_maxbubble'}) {
 7943: 	&restore_bubble_lines();
 7944: 	return $env{'form.scantron_maxbubble'};
 7945:     }
 7946: 
 7947:     my (undef, undef, $sequence) =
 7948: 	&Apache::lonnet::decode_symb($env{'form.selectpage'});
 7949: 
 7950:     my $navmap=Apache::lonnavmaps::navmap->new();
 7951:     unless (ref($navmap)) {
 7952:         if (ref($nav_error)) {
 7953:             $$nav_error = 1;
 7954:         }
 7955:         return;
 7956:     }
 7957:     my $map=$navmap->getResourceByUrl($sequence);
 7958:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 7959:     my $bubbles_per_row = &bubblesheet_bubbles_per_row($scantron_config);
 7960: 
 7961:     &Apache::lonxml::clear_problem_counter();
 7962: 
 7963:     my $uname       = $env{'user.name'};
 7964:     my $udom        = $env{'user.domain'};
 7965:     my $cid         = $env{'request.course.id'};
 7966:     my $total_lines = 0;
 7967:     %bubble_lines_per_response = ();
 7968:     %first_bubble_line         = ();
 7969:     %subdivided_bubble_lines   = ();
 7970:     %responsetype_per_response = ();
 7971:     %masterseq_id_responsenum  = ();
 7972: 
 7973:     my $response_number = 0;
 7974:     my $bubble_line     = 0;
 7975:     foreach my $resource (@resources) {
 7976:         my $resid = $resource->id(); 
 7977:         my ($analysis,$parts) = &scantron_partids_tograde($resource,$cid,$uname,
 7978:                                                           $udom,undef,$bubbles_per_row);
 7979:         if ((ref($analysis) eq 'HASH') && (ref($parts) eq 'ARRAY')) {
 7980: 	    foreach my $part_id (@{$parts}) {
 7981:                 my $lines;
 7982: 
 7983: 	        # TODO - make this a persistent hash not an array.
 7984: 
 7985:                 # optionresponse, matchresponse and rankresponse type items 
 7986:                 # render as separate sub-questions in exam mode.
 7987:                 if (($analysis->{$part_id.'.type'} eq 'optionresponse') ||
 7988:                     ($analysis->{$part_id.'.type'} eq 'matchresponse') ||
 7989:                     ($analysis->{$part_id.'.type'} eq 'rankresponse')) {
 7990:                     my ($numbub,$numshown);
 7991:                     if ($analysis->{$part_id.'.type'} eq 'optionresponse') {
 7992:                         if (ref($analysis->{$part_id.'.options'}) eq 'ARRAY') {
 7993:                             $numbub = scalar(@{$analysis->{$part_id.'.options'}});
 7994:                         }
 7995:                     } elsif ($analysis->{$part_id.'.type'} eq 'matchresponse') {
 7996:                         if (ref($analysis->{$part_id.'.items'}) eq 'ARRAY') {
 7997:                             $numbub = scalar(@{$analysis->{$part_id.'.items'}});
 7998:                         }
 7999:                     } elsif ($analysis->{$part_id.'.type'} eq 'rankresponse') {
 8000:                         if (ref($analysis->{$part_id.'.foils'}) eq 'ARRAY') {
 8001:                             $numbub = scalar(@{$analysis->{$part_id.'.foils'}});
 8002:                         }
 8003:                     }
 8004:                     if (ref($analysis->{$part_id.'.shown'}) eq 'ARRAY') {
 8005:                         $numshown = scalar(@{$analysis->{$part_id.'.shown'}});
 8006:                     }
 8007:                     my $bubbles_per_row =
 8008:                         &bubblesheet_bubbles_per_row($scantron_config);
 8009:                     my $inner_bubble_lines = int($numbub/$bubbles_per_row);
 8010:                     if (($numbub % $bubbles_per_row) != 0) {
 8011:                         $inner_bubble_lines++;
 8012:                     }
 8013:                     for (my $i=0; $i<$numshown; $i++) {
 8014:                         $subdivided_bubble_lines{$response_number} .= 
 8015:                             $inner_bubble_lines.',';
 8016:                     }
 8017:                     $subdivided_bubble_lines{$response_number} =~ s/,$//;
 8018:                     $lines = $numshown * $inner_bubble_lines;
 8019:                 } else {
 8020:                     $lines = $analysis->{"$part_id.bubble_lines"};
 8021:                 }
 8022: 
 8023:                 $first_bubble_line{$response_number} = $bubble_line;
 8024: 	        $bubble_lines_per_response{$response_number} = $lines;
 8025:                 $responsetype_per_response{$response_number} = 
 8026:                     $analysis->{$part_id.'.type'};
 8027:                 $masterseq_id_responsenum{$resid.'_'.$part_id} = $response_number;  
 8028: 	        $response_number++;
 8029: 
 8030: 	        $bubble_line +=  $lines;
 8031: 	        $total_lines +=  $lines;
 8032: 	    }
 8033:         }
 8034:     }
 8035:     &Apache::lonnet::delenv('scantron.');
 8036: 
 8037:     &save_bubble_lines();
 8038:     $env{'form.scantron_maxbubble'} =
 8039: 	$total_lines;
 8040:     return $env{'form.scantron_maxbubble'};
 8041: }
 8042: 
 8043: sub bubblesheet_bubbles_per_row {
 8044:     my ($scantron_config) = @_;
 8045:     my $bubbles_per_row;
 8046:     if (ref($scantron_config) eq 'HASH') {
 8047:         $bubbles_per_row = $scantron_config->{'BubblesPerRow'};
 8048:     }
 8049:     if ((!$bubbles_per_row) || ($bubbles_per_row < 1)) {
 8050:         $bubbles_per_row = 10;
 8051:     }
 8052:     return $bubbles_per_row;
 8053: }
 8054: 
 8055: sub scantron_validate_missingbubbles {
 8056:     my ($r,$currentphase) = @_;
 8057:     #get student info
 8058:     my $classlist=&Apache::loncoursedata::get_classlist();
 8059:     my %idmap=&username_to_idmap($classlist);
 8060:     my (undef,undef,$sequence)=
 8061:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8062: 
 8063:     #get scantron line setup
 8064:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8065:     my ($scanlines,$scan_data)=&scantron_getfile();
 8066: 
 8067:     my $navmap = Apache::lonnavmaps::navmap->new();
 8068:     unless (ref($navmap)) {
 8069:         $r->print(&navmap_errormsg());
 8070:         return(1,$currentphase);
 8071:     }
 8072: 
 8073:     my $map=$navmap->getResourceByUrl($sequence);
 8074:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8075:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8076:         %grader_randomlists_by_symb,%orderedforcode,%respnumlookup,%startline);
 8077:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8078: 
 8079:     my $nav_error;
 8080:     if (ref($map)) {
 8081:         $randomorder = $map->randomorder();
 8082:         $randompick = $map->randompick();
 8083:         if ($randomorder || $randompick) {
 8084:             $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8085:             if ($nav_error) {
 8086:                 $r->print(&navmap_errormsg());
 8087:                 return(1,$currentphase);
 8088:             }
 8089:             &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8090:                                     \%grader_randomlists_by_symb,$bubbles_per_row);
 8091:         }
 8092:     } else {
 8093:         $r->print(&navmap_errormsg());
 8094:         return(1,$currentphase);
 8095:     }
 8096: 
 8097: 
 8098:     my $max_bubble=&scantron_get_maxbubble(\$nav_error,\%scantron_config);
 8099:     if ($nav_error) {
 8100:         $r->print(&navmap_errormsg());
 8101:         return(1,$currentphase);
 8102:     }
 8103: 
 8104:     if (!$max_bubble) { $max_bubble=2**31; }
 8105:     for (my $i=0;$i<=$scanlines->{'count'};$i++) {
 8106: 	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8107: 	if ($line=~/^[\s\cz]*$/) { next; }
 8108: 	my $scan_record =
 8109:             &scantron_parse_scanline($line,$i,\%scantron_config,$scan_data,undef,\%idmap,
 8110: 				     $randomorder,$randompick,$sequence,\@master_seq,
 8111:                                      \%symb_to_resource,\%grader_partids_by_symb,
 8112:                                      \%orderedforcode,\%respnumlookup,\%startline);
 8113: 	if (!defined($$scan_record{'scantron.missingerror'})) { next; }
 8114: 	my @to_correct;
 8115: 	
 8116: 	# Probably here's where the error is...
 8117: 
 8118: 	foreach my $missing (@{$$scan_record{'scantron.missingerror'}}) {
 8119:             my $lastbubble;
 8120:             if ($missing =~ /^(\d+)\.(\d+)$/) {
 8121:                my $question = $1;
 8122:                my $subquestion = $2;
 8123:                my ($first,$responsenum);
 8124:                if ($randomorder || $randompick) {
 8125:                    $responsenum = $respnumlookup{$question-1};
 8126:                    $first = $startline{$question-1};
 8127:                } else {
 8128:                    $responsenum = $question-1; 
 8129:                    $first = $first_bubble_line{$responsenum};
 8130:                }
 8131:                if (!defined($first)) { next; }
 8132:                my @subans = split(/,/,$subdivided_bubble_lines{$responsenum});
 8133:                my $subcount = 1;
 8134:                while ($subcount<$subquestion) {
 8135:                    $first += $subans[$subcount-1];
 8136:                    $subcount ++;
 8137:                }
 8138:                my $count = $subans[$subquestion-1];
 8139:                $lastbubble = $first + $count;
 8140:             } else {
 8141:                my ($first,$responsenum);
 8142:                if ($randomorder || $randompick) {
 8143:                    $responsenum = $respnumlookup{$missing-1};
 8144:                    $first = $startline{$missing-1};
 8145:                } else {
 8146:                    $responsenum = $missing-1;
 8147:                    $first = $first_bubble_line{$responsenum};
 8148:                }
 8149:                if (!defined($first)) { next; }
 8150:                $lastbubble = $first + $bubble_lines_per_response{$responsenum};
 8151:             }
 8152:             if ($lastbubble > $max_bubble) { next; }
 8153: 	    push(@to_correct,$missing);
 8154: 	}
 8155: 	if (@to_correct) {
 8156: 	    &scantron_get_correction($r,$i,$scan_record,\%scantron_config,
 8157: 				     $line,'missingbubble',\@to_correct,
 8158:                                      $randomorder,$randompick,\%respnumlookup,
 8159:                                      \%startline);
 8160: 	    return (1,$currentphase);
 8161: 	}
 8162: 
 8163:     }
 8164:     return (0,$currentphase+1);
 8165: }
 8166: 
 8167: sub hand_bubble_option {
 8168:     my (undef, undef, $sequence) =
 8169:         &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8170:     return if ($sequence eq '');
 8171:     my $navmap = Apache::lonnavmaps::navmap->new();
 8172:     unless (ref($navmap)) {
 8173:         return;
 8174:     }
 8175:     my $needs_hand_bubbles;
 8176:     my $map=$navmap->getResourceByUrl($sequence);
 8177:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8178:     foreach my $res (@resources) {
 8179:         if (ref($res)) {
 8180:             if ($res->is_problem()) {
 8181:                 my $partlist = $res->parts();
 8182:                 foreach my $part (@{ $partlist }) {
 8183:                     my @types = $res->responseType($part);
 8184:                     if (grep(/^(chem|essay|image|formula|math|string|functionplot)$/,@types)) {
 8185:                         $needs_hand_bubbles = 1;
 8186:                         last;
 8187:                     }
 8188:                 }
 8189:             }
 8190:         }
 8191:     }
 8192:     if ($needs_hand_bubbles) {
 8193:         my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8194:         my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8195:         return &mt('The sequence to be graded contains response types which are handgraded.').'<p>'.
 8196:                &mt('If you have already graded these by bubbling sheets to indicate points awarded, [_1]what point value is assigned to a filled last bubble in each row?','<br />').
 8197:                '<label><input type="radio" name="scantron_lastbubblepoints" value="'.$bubbles_per_row.'" checked="checked" />'.&mt('[quant,_1,point]',$bubbles_per_row).'</label>&nbsp;'.&mt('or').'&nbsp;'.
 8198:                '<label><input type="radio" name="scantron_lastbubblepoints" value="0"/>0 points</label></p>';
 8199:     }
 8200:     return;
 8201: }
 8202: 
 8203: sub scantron_process_students {
 8204:     my ($r,$symb) = @_;
 8205: 
 8206:     my (undef,undef,$sequence)=&Apache::lonnet::decode_symb($env{'form.selectpage'});
 8207:     if (!$symb) {
 8208: 	return '';
 8209:     }
 8210:     my $default_form_data=&defaultFormData($symb);
 8211: 
 8212:     my %scantron_config=&get_scantron_config($env{'form.scantron_format'});
 8213:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config); 
 8214:     my ($scanlines,$scan_data)=&scantron_getfile();
 8215:     my $classlist=&Apache::loncoursedata::get_classlist();
 8216:     my %idmap=&username_to_idmap($classlist);
 8217:     my $navmap=Apache::lonnavmaps::navmap->new();
 8218:     unless (ref($navmap)) {
 8219:         $r->print(&navmap_errormsg());
 8220:         return '';
 8221:     }
 8222:     my $map=$navmap->getResourceByUrl($sequence);
 8223:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8224:         %grader_randomlists_by_symb);
 8225:     if (ref($map)) {
 8226:         $randomorder = $map->randomorder();
 8227:         $randompick = $map->randompick();
 8228:     } else {
 8229:         $r->print(&navmap_errormsg());
 8230:         return '';
 8231:     }
 8232:     my $nav_error;
 8233:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8234:     if ($randomorder || $randompick) {
 8235:         $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8236:         if ($nav_error) {
 8237:             $r->print(&navmap_errormsg());
 8238:             return '';
 8239:         }
 8240:     }
 8241:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8242:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 8243: 
 8244:     my ($uname,$udom);
 8245:     my $result= <<SCANTRONFORM;
 8246: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="scantronupload">
 8247:   <input type="hidden" name="command" value="scantron_configphase" />
 8248:   $default_form_data
 8249: SCANTRONFORM
 8250:     $r->print($result);
 8251: 
 8252:     my @delayqueue;
 8253:     my (%completedstudents,%scandata);
 8254:     
 8255:     my $lock=&Apache::lonnet::set_lock(&mt('Grading bubblesheet exam'));
 8256:     my $count=&get_todo_count($scanlines,$scan_data);
 8257:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 8258:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
 8259:     $r->print('<br />');
 8260:     my $start=&Time::HiRes::time();
 8261:     my $i=-1;
 8262:     my $started;
 8263: 
 8264:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 8265:     if ($nav_error) {
 8266:         $r->print(&navmap_errormsg());
 8267:         return '';
 8268:     }
 8269: 
 8270:     # If an ssi failed in scantron_get_maxbubble, put an error message out to
 8271:     # the user and return.
 8272: 
 8273:     if ($ssi_error) {
 8274: 	$r->print("</form>");
 8275: 	&ssi_print_error($r);
 8276:         &Apache::lonnet::remove_lock($lock);
 8277: 	return '';		# Dunno why the other returns return '' rather than just returning.
 8278:     }
 8279: 
 8280:     my %lettdig = &letter_to_digits();
 8281:     my $numletts = scalar(keys(%lettdig));
 8282:     my %orderedforcode;
 8283: 
 8284:     while ($i<$scanlines->{'count'}) {
 8285:  	($uname,$udom)=('','');
 8286:  	$i++;
 8287:  	my $line=&scantron_get_line($scanlines,$scan_data,$i);
 8288:  	if ($line=~/^[\s\cz]*$/) { next; }
 8289: 	if ($started) {
 8290: 	    &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
 8291: 	}
 8292: 	$started=1;
 8293:         my %respnumlookup = ();
 8294:         my %startline = ();
 8295:         my $total;
 8296:  	my $scan_record=&scantron_parse_scanline($line,$i,\%scantron_config,
 8297:                                                  $scan_data,undef,\%idmap,$randomorder,
 8298:                                                  $randompick,$sequence,\@master_seq,
 8299:                                                  \%symb_to_resource,\%grader_partids_by_symb,
 8300:                                                  \%orderedforcode,\%respnumlookup,\%startline,
 8301:                                                  \$total);
 8302:  	unless ($uname=&scantron_find_student($scan_record,$scan_data,
 8303:  					      \%idmap,$i)) {
 8304:   	    &scantron_add_delay(\@delayqueue,$line,
 8305:  				'Unable to find a student that matches',1);
 8306:  	    next;
 8307:   	}
 8308:  	if (exists $completedstudents{$uname}) {
 8309:  	    &scantron_add_delay(\@delayqueue,$line,
 8310:  				'Student '.$uname.' has multiple sheets',2);
 8311:  	    next;
 8312:  	}
 8313:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 8314:         my $user = $uname.':'.$usec;
 8315:   	($uname,$udom)=split(/:/,$uname);
 8316: 
 8317:         my $scancode;
 8318:         if ((exists($scan_record->{'scantron.CODE'})) &&
 8319:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 8320:             $scancode = $scan_record->{'scantron.CODE'};
 8321:         } else {
 8322:             $scancode = '';
 8323:         }
 8324: 
 8325:         my @mapresources = @resources;
 8326:         if ($randomorder || $randompick) {
 8327:             @mapresources = 
 8328:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 8329:                              \%orderedforcode);
 8330:         }
 8331:         my (%partids_by_symb,$res_error);
 8332:         foreach my $resource (@mapresources) {
 8333:             my $ressymb;
 8334:             if (ref($resource)) {
 8335:                 $ressymb = $resource->symb();
 8336:             } else {
 8337:                 $res_error = 1;
 8338:                 last;
 8339:             }
 8340:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8341:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8342:                 my ($analysis,$parts) =
 8343:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 8344:                                               $uname,$udom,undef,$bubbles_per_row);
 8345:                 $partids_by_symb{$ressymb} = $parts;
 8346:             } else {
 8347:                 $partids_by_symb{$ressymb} = $grader_partids_by_symb{$ressymb};
 8348:             }
 8349:         }
 8350: 
 8351:         if ($res_error) {
 8352:             &scantron_add_delay(\@delayqueue,$line,
 8353:                                 'An error occurred while grading student '.$uname,2);
 8354:             next;
 8355:         }
 8356: 
 8357: 	&Apache::lonxml::clear_problem_counter();
 8358:   	&Apache::lonnet::appenv($scan_record);
 8359: 
 8360: 	if (&scantron_clear_skip($scanlines,$scan_data,$i)) {
 8361: 	    &scantron_putfile($scanlines,$scan_data);
 8362: 	}
 8363: 	
 8364:         if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8365:                                    \@mapresources,\%partids_by_symb,
 8366:                                    $bubbles_per_row,$randomorder,$randompick,
 8367:                                    \%respnumlookup,\%startline) 
 8368:             eq 'ssi_error') {
 8369:             $ssi_error = 0; # So end of handler error message does not trigger.
 8370:             $r->print("</form>");
 8371:             &ssi_print_error($r);
 8372:             &Apache::lonnet::remove_lock($lock);
 8373:             return '';      # Why return ''?  Beats me.
 8374:         }
 8375: 
 8376:         if (($scancode) && ($randomorder || $randompick)) {
 8377:             my $parmresult =
 8378:                 &Apache::lonparmset::storeparm_by_symb($symb,
 8379:                                                        '0_examcode',2,$scancode,
 8380:                                                        'string_examcode',$uname,
 8381:                                                        $udom);
 8382:         }
 8383: 	$completedstudents{$uname}={'line'=>$line};
 8384:         if ($env{'form.verifyrecord'}) {
 8385:             my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8386:             if ($randompick) {
 8387:                 if ($total) {
 8388:                     $lastpos = $total*$scantron_config{'Qlength'};
 8389:                 }
 8390:             }
 8391: 
 8392:             my $studentdata = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8393:             chomp($studentdata);
 8394:             $studentdata =~ s/\r$//;
 8395:             my $studentrecord = '';
 8396:             my $counter = -1;
 8397:             foreach my $resource (@mapresources) {
 8398:                 my $ressymb = $resource->symb();
 8399:                 ($counter,my $recording) =
 8400:                     &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8401:                                              $counter,$studentdata,$partids_by_symb{$ressymb},
 8402:                                              \%scantron_config,\%lettdig,$numletts,$randomorder,
 8403:                                              $randompick,\%respnumlookup,\%startline);
 8404:                 $studentrecord .= $recording;
 8405:             }
 8406:             if ($studentrecord ne $studentdata) {
 8407:                 &Apache::lonxml::clear_problem_counter();
 8408:                 if (&grade_student_bubbles($r,$uname,$udom,$scan_record,$scancode,
 8409:                                            \@mapresources,\%partids_by_symb,
 8410:                                            $bubbles_per_row,$randomorder,$randompick,
 8411:                                            \%respnumlookup,\%startline) 
 8412:                     eq 'ssi_error') {
 8413:                     $ssi_error = 0; # So end of handler error message does not trigger.
 8414:                     $r->print("</form>");
 8415:                     &ssi_print_error($r);
 8416:                     &Apache::lonnet::remove_lock($lock);
 8417:                     delete($completedstudents{$uname});
 8418:                     return '';
 8419:                 }
 8420:                 $counter = -1;
 8421:                 $studentrecord = '';
 8422:                 foreach my $resource (@mapresources) {
 8423:                     my $ressymb = $resource->symb();
 8424:                     ($counter,my $recording) =
 8425:                         &verify_scantron_grading($resource,$udom,$uname,$env{'request.course.id'},
 8426:                                                  $counter,$studentdata,$partids_by_symb{$ressymb},
 8427:                                                  \%scantron_config,\%lettdig,$numletts,
 8428:                                                  $randomorder,$randompick,\%respnumlookup,
 8429:                                                  \%startline);
 8430:                     $studentrecord .= $recording;
 8431:                 }
 8432:                 if ($studentrecord ne $studentdata) {
 8433:                     $r->print('<p><span class="LC_warning">');
 8434:                     if ($scancode eq '') {
 8435:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2].',
 8436:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'}));
 8437:                     } else {
 8438:                         $r->print(&mt('Mismatch grading bubblesheet for user: [_1] with ID: [_2] and CODE: [_3].',
 8439:                                   $uname.':'.$udom,$scan_record->{'scantron.ID'},$scancode));
 8440:                     }
 8441:                     $r->print('</span><br />'.&Apache::loncommon::start_data_table()."\n".
 8442:                               &Apache::loncommon::start_data_table_header_row()."\n".
 8443:                               '<th>'.&mt('Source').'</th><th>'.&mt('Bubbled responses').'</th>'.
 8444:                               &Apache::loncommon::end_data_table_header_row()."\n".
 8445:                               &Apache::loncommon::start_data_table_row().
 8446:                               '<td>'.&mt('Bubblesheet').'</td>'.
 8447:                               '<td><span class="LC_nobreak"><tt>'.$studentdata.'</tt></span></td>'.
 8448:                               &Apache::loncommon::end_data_table_row().
 8449:                               &Apache::loncommon::start_data_table_row().
 8450:                               '<td>'.&mt('Stored submissions').'</td>'.
 8451:                               '<td><span class="LC_nobreak"><tt>'.$studentrecord.'</tt></span></td>'."\n".
 8452:                               &Apache::loncommon::end_data_table_row().
 8453:                               &Apache::loncommon::end_data_table().'</p>');
 8454:                 } else {
 8455:                     $r->print('<br /><span class="LC_warning">'.
 8456:                              &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 />'.
 8457:                              &mt("As a consequence, this user's submission history records two tries.").
 8458:                                  '</span><br />');
 8459:                 }
 8460:             }
 8461:         }
 8462:         if (&Apache::loncommon::connection_aborted($r)) { last; }
 8463:     } continue {
 8464: 	&Apache::lonxml::clear_problem_counter();
 8465: 	&Apache::lonnet::delenv('scantron.');
 8466:     }
 8467:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8468:     &Apache::lonnet::remove_lock($lock);
 8469: #    my $lasttime = &Time::HiRes::time()-$start;
 8470: #    $r->print("<p>took $lasttime</p>");
 8471: 
 8472:     $r->print("</form>");
 8473:     return '';
 8474: }
 8475: 
 8476: sub graders_resources_pass {
 8477:     my ($resources,$grader_partids_by_symb,$grader_randomlists_by_symb,
 8478:         $bubbles_per_row) = @_;
 8479:     if ((ref($resources) eq 'ARRAY') && (ref($grader_partids_by_symb)) && 
 8480:         (ref($grader_randomlists_by_symb) eq 'HASH')) {
 8481:         foreach my $resource (@{$resources}) {
 8482:             my $ressymb = $resource->symb();
 8483:             my ($analysis,$parts) =
 8484:                 &scantron_partids_tograde($resource,$env{'request.course.id'},
 8485:                                           $env{'user.name'},$env{'user.domain'},
 8486:                                           1,$bubbles_per_row);
 8487:             $grader_partids_by_symb->{$ressymb} = $parts;
 8488:             if (ref($analysis) eq 'HASH') {
 8489:                 if (ref($analysis->{'parts_withrandomlist'}) eq 'ARRAY') {
 8490:                     $grader_randomlists_by_symb->{$ressymb} =
 8491:                         $analysis->{'parts_withrandomlist'};
 8492:                 }
 8493:             }
 8494:         }
 8495:     }
 8496:     return;
 8497: }
 8498: 
 8499: =pod
 8500: 
 8501: =item users_order
 8502: 
 8503:   Returns array of resources in current map, ordered based on either CODE,
 8504:   if this is a CODEd exam, or based on student's identity if this is a 
 8505:   "NAMEd" exam.
 8506: 
 8507:   Should be used when randomorder and/or randompick applied when the 
 8508:   corresponding exam was printed, prior to students completing bubblesheets 
 8509:   for the version of the exam the student received.
 8510: 
 8511: =cut
 8512: 
 8513: sub users_order  {
 8514:     my ($user,$scancode,$mapurl,$master_seq,$symb_to_resource,$orderedforcode) = @_;
 8515:     my @mapresources;
 8516:     unless ((ref($master_seq) eq 'ARRAY') && (ref($symb_to_resource) eq 'HASH')) {
 8517:         return @mapresources;
 8518:     }
 8519:     if ($scancode) {
 8520:         if ((ref($orderedforcode) eq 'HASH') && (ref($orderedforcode->{$scancode}) eq 'ARRAY')) {
 8521:             @mapresources = @{$orderedforcode->{$scancode}};
 8522:         } else {
 8523:             $env{'form.CODE'} = $scancode;
 8524:             my $actual_seq =
 8525:                 &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8526:                                                                $master_seq,
 8527:                                                                $user,$scancode,1);
 8528:             if (ref($actual_seq) eq 'ARRAY') {
 8529:                 @mapresources = map { $symb_to_resource->{$_}; } @{$actual_seq};
 8530:                 if (ref($orderedforcode) eq 'HASH') {
 8531:                     if (@mapresources > 0) { 
 8532:                         $orderedforcode->{$scancode} = \@mapresources;
 8533:                     }
 8534:                 }
 8535:             }
 8536:             delete($env{'form.CODE'});
 8537:         }
 8538:     } else {
 8539:         my $actual_seq =
 8540:             &Apache::lonprintout::master_seq_to_person_seq($mapurl,
 8541:                                                            $master_seq,
 8542:                                                            $user,undef,1);
 8543:         if (ref($actual_seq) eq 'ARRAY') {
 8544:             @mapresources = 
 8545:                 map { $symb_to_resource->{$_}; } @{$actual_seq};
 8546:         }
 8547:     }
 8548:     return @mapresources;
 8549: }
 8550: 
 8551: sub grade_student_bubbles {
 8552:     my ($r,$uname,$udom,$scan_record,$scancode,$resources,$parts,$bubbles_per_row,
 8553:         $randomorder,$randompick,$respnumlookup,$startline) = @_;
 8554:     my $uselookup = 0;
 8555:     if (($randomorder || $randompick) && (ref($respnumlookup) eq 'HASH') &&
 8556:         (ref($startline) eq 'HASH')) {
 8557:         $uselookup = 1;
 8558:     }
 8559: 
 8560:     if (ref($resources) eq 'ARRAY') {
 8561:         my $count = 0;
 8562:         foreach my $resource (@{$resources}) {
 8563:             my $ressymb = $resource->symb();
 8564:             my %form = ('submitted'      => 'scantron',
 8565:                         'grade_target'   => 'grade',
 8566:                         'grade_username' => $uname,
 8567:                         'grade_domain'   => $udom,
 8568:                         'grade_courseid' => $env{'request.course.id'},
 8569:                         'grade_symb'     => $ressymb,
 8570:                         'CODE'           => $scancode
 8571:                        );
 8572:             if ($bubbles_per_row ne '') {
 8573:                 $form{'bubbles_per_row'} = $bubbles_per_row;
 8574:             }
 8575:             if ($env{'form.scantron_lastbubblepoints'} ne '') {
 8576:                 $form{'scantron_lastbubblepoints'} = $env{'form.scantron_lastbubblepoints'};
 8577:             }
 8578:             if (ref($parts) eq 'HASH') {
 8579:                 if (ref($parts->{$ressymb}) eq 'ARRAY') {
 8580:                     foreach my $part (@{$parts->{$ressymb}}) {
 8581:                         if ($uselookup) {
 8582:                             $form{'scantron_questnum_start.'.$part} = $startline->{$count} + 1;
 8583:                         } else {
 8584:                             $form{'scantron_questnum_start.'.$part} =
 8585:                                 1+$env{'form.scantron.first_bubble_line.'.$count};
 8586:                         }
 8587:                         $count++;
 8588:                     }
 8589:                 }
 8590:             }
 8591:             my $result=&ssi_with_retries($resource->src(),$ssi_retries,%form);
 8592:             return 'ssi_error' if ($ssi_error);
 8593:             last if (&Apache::loncommon::connection_aborted($r));
 8594:         }
 8595:     }
 8596:     return;
 8597: }
 8598: 
 8599: sub scantron_upload_scantron_data {
 8600:     my ($r,$symb)=@_;
 8601:     my $dom = $env{'request.role.domain'};
 8602:     my $domdesc = &Apache::lonnet::domain($dom,'description');
 8603:     $r->print(&Apache::loncommon::coursebrowser_javascript($dom));
 8604:     my $select_link=&Apache::loncommon::selectcourse_link('rules','courseid',
 8605: 							  'domainid',
 8606: 							  'coursename',$dom);
 8607:     my $syllabuslink = '<a href="javascript:ToSyllabus();">'.&mt('Syllabus').'</a>'.
 8608:                        ('&nbsp'x2).&mt('(shows course personnel)'); 
 8609:     my $default_form_data=&defaultFormData($symb);
 8610:     my $nofile_alert = &mt('Please use the browse button to select a file from your local directory.');
 8611:     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.");
 8612:     $r->print(&Apache::lonhtmlcommon::scripttag('
 8613:     function checkUpload(formname) {
 8614: 	if (formname.upfile.value == "") {
 8615: 	    alert("'.$nofile_alert.'");
 8616: 	    return false;
 8617: 	}
 8618:         if (formname.courseid.value == "") {
 8619:             alert("'.$nocourseid_alert.'");
 8620:             return false;
 8621:         }
 8622: 	formname.submit();
 8623:     }
 8624: 
 8625:     function ToSyllabus() {
 8626:         var cdom = '."'$dom'".';
 8627:         var cnum = document.rules.courseid.value;
 8628:         if (cdom == "" || cdom == null) {
 8629:             return;
 8630:         }
 8631:         if (cnum == "" || cnum == null) {
 8632:            return;
 8633:         }
 8634:         syllwin=window.open("/public/"+cdom+"/"+cnum+"/syllabus","LONCAPASyllabus",
 8635:                             "height=350,width=350,scrollbars=yes,menubar=no");
 8636:         return;
 8637:     }
 8638: 
 8639: '));
 8640:     $r->print('
 8641: <h3>'.&mt('Send bubblesheet data to a course').'</h3>
 8642: 
 8643: <form enctype="multipart/form-data" action="/adm/grades" name="rules" method="post">
 8644: '.$default_form_data.
 8645:   &Apache::lonhtmlcommon::start_pick_box().
 8646:   &Apache::lonhtmlcommon::row_title(&mt('Course ID')).
 8647:   '<input name="courseid" type="text" size="30" />'.$select_link.
 8648:   &Apache::lonhtmlcommon::row_closure().
 8649:   &Apache::lonhtmlcommon::row_title(&mt('Course Name')).
 8650:   '<input name="coursename" type="text" size="30" />'.$syllabuslink.
 8651:   &Apache::lonhtmlcommon::row_closure().
 8652:   &Apache::lonhtmlcommon::row_title(&mt('Domain')).
 8653:   '<input name="domainid" type="hidden" />'.$domdesc.
 8654:   &Apache::lonhtmlcommon::row_closure().
 8655:   &Apache::lonhtmlcommon::row_title(&mt('File to upload')).
 8656:   '<input type="file" name="upfile" size="50" />'.
 8657:   &Apache::lonhtmlcommon::row_closure(1).
 8658:   &Apache::lonhtmlcommon::end_pick_box().'<br />
 8659: 
 8660: <input name="command" value="scantronupload_save" type="hidden" />
 8661: <input type="button" onclick="javascript:checkUpload(this.form);" value="'.&mt('Upload Bubblesheet Data').'" />
 8662: </form>
 8663: ');
 8664:     return '';
 8665: }
 8666: 
 8667: 
 8668: sub scantron_upload_scantron_data_save {
 8669:     my($r,$symb)=@_;
 8670:     my $doanotherupload=
 8671: 	'<br /><form action="/adm/grades" method="post">'."\n".
 8672: 	'<input type="hidden" name="command" value="scantronupload" />'."\n".
 8673: 	'<input type="submit" name="submit" value="'.&mt('Do Another Upload').'" />'."\n".
 8674: 	'</form>'."\n";
 8675:     if (!&Apache::lonnet::allowed('usc',$env{'form.domainid'}) &&
 8676: 	!&Apache::lonnet::allowed('usc',
 8677: 			    $env{'form.domainid'}.'_'.$env{'form.courseid'})) {
 8678: 	$r->print(&mt("You are not allowed to upload bubblesheet data to the requested course.")."<br />");
 8679: 	unless ($symb) {
 8680: 	    $r->print($doanotherupload);
 8681: 	}
 8682: 	return '';
 8683:     }
 8684:     my %coursedata=&Apache::lonnet::coursedescription($env{'form.domainid'}.'_'.$env{'form.courseid'});
 8685:     my $uploadedfile;
 8686:     $r->print('<h3>'.&mt("Uploading file to [_1]",$coursedata{'description'}).'</h3>');
 8687:     if (length($env{'form.upfile'}) < 2) {
 8688:         $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>'));
 8689:     } else {
 8690:         my $result = 
 8691:             &Apache::lonnet::userfileupload('upfile','','scantron','','','',
 8692:                                             $env{'form.courseid'},$env{'form.domainid'});
 8693: 	if ($result =~ m{^/uploaded/}) {
 8694: 	    $r->print(&mt('[_1]Success:[_2] Successfully uploaded [_3] bytes of data into location: [_4]',
 8695:                           '<span class="LC_success">','</span>',(length($env{'form.upfile'})-1),
 8696: 			  '<span class="LC_filename">'.$result.'</span>'));
 8697:             ($uploadedfile) = ($result =~ m{/([^/]+)$});
 8698:             $r->print(&validate_uploaded_scantron_file($env{'form.domainid'},
 8699:                                                        $env{'form.courseid'},$uploadedfile));
 8700: 	} else {
 8701: 	    $r->print(&mt('[_1]Error:[_2] An error ([_3]) occurred when attempting to upload the file, [_4]',
 8702:                           '<span class="LC_error">','</span>',$result,
 8703: 			  '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>'));
 8704: 	}
 8705:     }
 8706:     if ($symb) {
 8707: 	$r->print(&scantron_selectphase($r,$uploadedfile,$symb));
 8708:     } else {
 8709: 	$r->print($doanotherupload);
 8710:     }
 8711:     return '';
 8712: }
 8713: 
 8714: sub validate_uploaded_scantron_file {
 8715:     my ($cdom,$cname,$fname) = @_;
 8716:     my $scanlines=&Apache::lonnet::getfile('/uploaded/'.$cdom.'/'.$cname.'/'.$fname);
 8717:     my @lines;
 8718:     if ($scanlines ne '-1') {
 8719:         @lines=split("\n",$scanlines,-1);
 8720:     }
 8721:     my $output;
 8722:     if (@lines) {
 8723:         my (%counts,$max_match_format);
 8724:         my ($max_match_count,$max_match_pct) = (0,0);
 8725:         my $classlist = &Apache::loncoursedata::get_classlist($cdom,$cname);
 8726:         my %idmap = &username_to_idmap($classlist);
 8727:         foreach my $key (keys(%idmap)) {
 8728:             my $lckey = lc($key);
 8729:             $idmap{$lckey} = $idmap{$key};
 8730:         }
 8731:         my %unique_formats;
 8732:         my @formatlines = &get_scantronformat_file();
 8733:         foreach my $line (@formatlines) {
 8734:             chomp($line);
 8735:             my @config = split(/:/,$line);
 8736:             my $idstart = $config[5];
 8737:             my $idlength = $config[6];
 8738:             if (($idstart ne '') && ($idlength > 0)) {
 8739:                 if (ref($unique_formats{$idstart.':'.$idlength}) eq 'ARRAY') {
 8740:                     push(@{$unique_formats{$idstart.':'.$idlength}},$config[0].':'.$config[1]); 
 8741:                 } else {
 8742:                     $unique_formats{$idstart.':'.$idlength} = [$config[0].':'.$config[1]];
 8743:                 }
 8744:             }
 8745:         }
 8746:         foreach my $key (keys(%unique_formats)) {
 8747:             my ($idstart,$idlength) = split(':',$key);
 8748:             %{$counts{$key}} = (
 8749:                                'found'   => 0,
 8750:                                'total'   => 0,
 8751:                               );
 8752:             foreach my $line (@lines) {
 8753:                 next if ($line =~ /^#/);
 8754:                 next if ($line =~ /^[\s\cz]*$/);
 8755:                 my $id = substr($line,$idstart-1,$idlength);
 8756:                 $id = lc($id);
 8757:                 if (exists($idmap{$id})) {
 8758:                     $counts{$key}{'found'} ++;
 8759:                 }
 8760:                 $counts{$key}{'total'} ++;
 8761:             }
 8762:             if ($counts{$key}{'total'}) {
 8763:                 my $percent_match = (100*$counts{$key}{'found'})/($counts{$key}{'total'});
 8764:                 if (($max_match_format eq '') || ($percent_match > $max_match_pct)) {
 8765:                     $max_match_pct = $percent_match;
 8766:                     $max_match_format = $key;
 8767:                     $max_match_count = $counts{$key}{'total'};
 8768:                 }
 8769:             }
 8770:         }
 8771:         if (ref($unique_formats{$max_match_format}) eq 'ARRAY') {
 8772:             my $format_descs;
 8773:             my $numwithformat = @{$unique_formats{$max_match_format}};
 8774:             for (my $i=0; $i<$numwithformat; $i++) {
 8775:                 my ($name,$desc) = split(':',$unique_formats{$max_match_format}[$i]);
 8776:                 if ($i<$numwithformat-2) {
 8777:                     $format_descs .= '"<i>'.$desc.'</i>", ';
 8778:                 } elsif ($i==$numwithformat-2) {
 8779:                     $format_descs .= '"<i>'.$desc.'</i>" '.&mt('and').' ';
 8780:                 } elsif ($i==$numwithformat-1) {
 8781:                     $format_descs .= '"<i>'.$desc.'</i>"';
 8782:                 }
 8783:             }
 8784:             my $showpct = sprintf("%.0f",$max_match_pct).'%';
 8785:             $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).
 8786:                        '<br />'.&mt('A low percentage of matches results from one of the following:').'<ul>'.
 8787:                        '<li>'.&mt('The file was uploaded to the wrong course').'</li>'.
 8788:                        '<li>'.&mt('The data are not in the format expected for the domain: [_1]',
 8789:                                   '<i>'.$cdom.'</i>').'</li>'.
 8790:                        '<li>'.&mt('Students did not bubble their IDs, or mis-bubbled them').'</li>'.
 8791:                        '<li>'.&mt('The course roster is not up to date').'</li>'.
 8792:                        '</ul>';
 8793:         }
 8794:     } else {
 8795:         $output = '<span class="LC_warning">'.&mt('Uploaded file contained no data').'</span>';
 8796:     }
 8797:     return $output;
 8798: }
 8799: 
 8800: sub valid_file {
 8801:     my ($requested_file)=@_;
 8802:     foreach my $filename (sort(&scantron_filenames())) {
 8803: 	if ($requested_file eq $filename) { return 1; }
 8804:     }
 8805:     return 0;
 8806: }
 8807: 
 8808: sub scantron_download_scantron_data {
 8809:     my ($r,$symb)=@_;
 8810:     my $default_form_data=&defaultFormData($symb);
 8811:     my $cname=$env{'course.'.$env{'request.course.id'}.'.num'};
 8812:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 8813:     my $file=$env{'form.scantron_selectfile'};
 8814:     if (! &valid_file($file)) {
 8815: 	$r->print('
 8816: 	<p>
 8817: 	    '.&mt('The requested filename was invalid.').'
 8818:         </p>
 8819: ');
 8820: 	return;
 8821:     }
 8822:     my $orig='/uploaded/'.$cdom.'/'.$cname.'/scantron_orig_'.$file;
 8823:     my $corrected='/uploaded/'.$cdom.'/'.$cname.'/scantron_corrected_'.$file;
 8824:     my $skipped='/uploaded/'.$cdom.'/'.$cname.'/scantron_skipped_'.$file;
 8825:     &Apache::lonnet::allowuploaded('/adm/grades',$orig);
 8826:     &Apache::lonnet::allowuploaded('/adm/grades',$corrected);
 8827:     &Apache::lonnet::allowuploaded('/adm/grades',$skipped);
 8828:     $r->print('
 8829:     <p>
 8830: 	'.&mt('[_1]Original[_2] file as uploaded by the scantron office.',
 8831: 	      '<a href="'.$orig.'">','</a>').'
 8832:     </p>
 8833:     <p>
 8834: 	'.&mt('[_1]Corrections[_2], a file of corrected records that were used in grading.',
 8835: 	      '<a href="'.$corrected.'">','</a>').'
 8836:     </p>
 8837:     <p>
 8838: 	'.&mt('[_1]Skipped[_2], a file of records that were skipped.',
 8839: 	      '<a href="'.$skipped.'">','</a>').'
 8840:     </p>
 8841: ');
 8842:     return '';
 8843: }
 8844: 
 8845: sub checkscantron_results {
 8846:     my ($r,$symb) = @_;
 8847:     if (!$symb) {return '';}
 8848:     my $cid = $env{'request.course.id'};
 8849:     my %lettdig = &letter_to_digits();
 8850:     my $numletts = scalar(keys(%lettdig));
 8851:     my $cnum = $env{'course.'.$cid.'.num'};
 8852:     my $cdom = $env{'course.'.$cid.'.domain'};
 8853:     my (undef, undef, $sequence) = &Apache::lonnet::decode_symb($env{'form.selectpage'});
 8854:     my %record;
 8855:     my %scantron_config =
 8856:         &Apache::grades::get_scantron_config($env{'form.scantron_format'});
 8857:     my $bubbles_per_row = &bubblesheet_bubbles_per_row(\%scantron_config);
 8858:     my ($scanlines,$scan_data)=&Apache::grades::scantron_getfile();
 8859:     my $classlist=&Apache::loncoursedata::get_classlist();
 8860:     my %idmap=&Apache::grades::username_to_idmap($classlist);
 8861:     my $navmap=Apache::lonnavmaps::navmap->new();
 8862:     unless (ref($navmap)) {
 8863:         $r->print(&navmap_errormsg());
 8864:         return '';
 8865:     }
 8866:     my $map=$navmap->getResourceByUrl($sequence);
 8867:     my ($randomorder,$randompick,@master_seq,%symb_to_resource,%grader_partids_by_symb,
 8868:         %grader_randomlists_by_symb,%orderedforcode);
 8869:     if (ref($map)) { 
 8870:         $randomorder=$map->randomorder();
 8871:         $randompick=$map->randompick();
 8872:     }
 8873:     my @resources=$navmap->retrieveResources($map,\&scantron_filter,1,0);
 8874:     my $nav_error = &get_master_seq(\@resources,\@master_seq,\%symb_to_resource);
 8875:     if ($nav_error) {
 8876:         $r->print(&navmap_errormsg());
 8877:         return '';
 8878:     }
 8879:     &graders_resources_pass(\@resources,\%grader_partids_by_symb,
 8880:                             \%grader_randomlists_by_symb,$bubbles_per_row);
 8881:     my ($uname,$udom);
 8882:     my (%scandata,%lastname,%bylast);
 8883:     $r->print('
 8884: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="checkscantron">'."\n");
 8885: 
 8886:     my @delayqueue;
 8887:     my %completedstudents;
 8888: 
 8889:     my $count=&get_todo_count($scanlines,$scan_data);
 8890:     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin($r,$count);
 8891:     my ($username,$domain,$started,%ordered);
 8892:     &scantron_get_maxbubble(\$nav_error,\%scantron_config); # Need the bubble lines array to parse.
 8893:     if ($nav_error) {
 8894:         $r->print(&navmap_errormsg());
 8895:         return '';
 8896:     }
 8897: 
 8898:     &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,'Processing first student');
 8899:     my $start=&Time::HiRes::time();
 8900:     my $i=-1;
 8901: 
 8902:     while ($i<$scanlines->{'count'}) {
 8903:         ($username,$domain,$uname)=('','','');
 8904:         $i++;
 8905:         my $line=&Apache::grades::scantron_get_line($scanlines,$scan_data,$i);
 8906:         if ($line=~/^[\s\cz]*$/) { next; }
 8907:         if ($started) {
 8908:             &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student');
 8909:         }
 8910:         $started=1;
 8911:         my $scan_record=
 8912:             &Apache::grades::scantron_parse_scanline($line,$i,\%scantron_config,
 8913:                                                      $scan_data);
 8914:         unless ($uname=&scantron_find_student($scan_record,$scan_data,
 8915:                                               \%idmap,$i)) {
 8916:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8917:                                 'Unable to find a student that matches',1);
 8918:             next;
 8919:         }
 8920:         if (exists $completedstudents{$uname}) {
 8921:             &Apache::grades::scantron_add_delay(\@delayqueue,$line,
 8922:                                 'Student '.$uname.' has multiple sheets',2);
 8923:             next;
 8924:         }
 8925:         my $pid = $scan_record->{'scantron.ID'};
 8926:         $lastname{$pid} = $scan_record->{'scantron.LastName'};
 8927:         push(@{$bylast{$lastname{$pid}}},$pid);
 8928:         my $usec = $classlist->{$uname}->[&Apache::loncoursedata::CL_SECTION];
 8929:         my $user = $uname.':'.$usec;
 8930:         ($username,$domain)=split(/:/,$uname);
 8931: 
 8932:         my $scancode;
 8933:         if ((exists($scan_record->{'scantron.CODE'})) &&
 8934:             (&Apache::lonnet::validCODE($scan_record->{'scantron.CODE'}))) {
 8935:             $scancode = $scan_record->{'scantron.CODE'};
 8936:         } else {
 8937:             $scancode = '';
 8938:         }
 8939: 
 8940:         my @mapresources = @resources;
 8941:         my $lastpos = $env{'form.scantron_maxbubble'}*$scantron_config{'Qlength'};
 8942:         my %respnumlookup=();
 8943:         my %startline=();
 8944:         if ($randomorder || $randompick) {
 8945:             @mapresources =
 8946:                 &users_order($user,$scancode,$sequence,\@master_seq,\%symb_to_resource,
 8947:                              \%orderedforcode);
 8948:             my $total = &get_respnum_lookups($sequence,$scan_data,\%idmap,$line,
 8949:                                              $scan_record,\@master_seq,\%symb_to_resource,
 8950:                                              \%grader_partids_by_symb,\%orderedforcode,
 8951:                                              \%respnumlookup,\%startline);
 8952:             if ($randompick && $total) {
 8953:                 $lastpos = $total*$scantron_config{'Qlength'};
 8954:             }
 8955:         }
 8956:         $scandata{$pid} = substr($line,$scantron_config{'Qstart'}-1,$lastpos);
 8957:         chomp($scandata{$pid});
 8958:         $scandata{$pid} =~ s/\r$//;
 8959: 
 8960:         my $counter = -1;
 8961:         foreach my $resource (@mapresources) {
 8962:             my $parts;
 8963:             my $ressymb = $resource->symb();
 8964:             if ((exists($grader_randomlists_by_symb{$ressymb})) ||
 8965:                 (ref($grader_partids_by_symb{$ressymb}) ne 'ARRAY')) {
 8966:                 (my $analysis,$parts) =
 8967:                     &scantron_partids_tograde($resource,$env{'request.course.id'},
 8968:                                               $username,$domain,undef,
 8969:                                               $bubbles_per_row);
 8970:             } else {
 8971:                 $parts = $grader_partids_by_symb{$ressymb};
 8972:             }
 8973:             ($counter,my $recording) =
 8974:                 &verify_scantron_grading($resource,$domain,$username,$cid,$counter,
 8975:                                          $scandata{$pid},$parts,
 8976:                                          \%scantron_config,\%lettdig,$numletts,
 8977:                                          $randomorder,$randompick,
 8978:                                          \%respnumlookup,\%startline);
 8979:             $record{$pid} .= $recording;
 8980:         }
 8981:     }
 8982:     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
 8983:     $r->print('<br />');
 8984:     my ($okstudents,$badstudents,$numstudents,$passed,$failed);
 8985:     $passed = 0;
 8986:     $failed = 0;
 8987:     $numstudents = 0;
 8988:     foreach my $last (sort(keys(%bylast))) {
 8989:         if (ref($bylast{$last}) eq 'ARRAY') {
 8990:             foreach my $pid (sort(@{$bylast{$last}})) {
 8991:                 my $showscandata = $scandata{$pid};
 8992:                 my $showrecord = $record{$pid};
 8993:                 $showscandata =~ s/\s/&nbsp;/g;
 8994:                 $showrecord =~ s/\s/&nbsp;/g;
 8995:                 if ($scandata{$pid} eq $record{$pid}) {
 8996:                     my $css_class = ($passed % 2)?'LC_odd_row':'LC_even_row';
 8997:                     $okstudents .= '<tr class="'.$css_class.'">'.
 8998: '<td>'.&mt('Bubblesheet').'</td><td>'.$showscandata.'</td><td rowspan="2">'.$last.'</td><td rowspan="2">'.$pid.'</td>'."\n".
 8999: '</tr>'."\n".
 9000: '<tr class="'.$css_class.'">'."\n".
 9001: '<td>Submissions</td><td>'.$showrecord.'</td></tr>'."\n";
 9002:                     $passed ++;
 9003:                 } else {
 9004:                     my $css_class = ($failed % 2)?'LC_odd_row':'LC_even_row';
 9005:                     $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".
 9006: '</tr>'."\n".
 9007: '<tr class="'.$css_class.'">'."\n".
 9008: '<td>Submissions</td><td><span class="LC_nobreak">'.$record{$pid}.'</span></td>'."\n".
 9009: '</tr>'."\n";
 9010:                     $failed ++;
 9011:                 }
 9012:                 $numstudents ++;
 9013:             }
 9014:         }
 9015:     }
 9016:     $r->print(
 9017:         '<p>'
 9018:        .&mt('Comparison of bubblesheet data (including corrections) with corresponding submission records (most recent submission) for [_1][quant,_2,student][_3] ([quant,_4,bubblesheet line] per student).',
 9019:             '<b>',
 9020:             $numstudents,
 9021:             '</b>',
 9022:             $env{'form.scantron_maxbubble'})
 9023:        .'</p>'
 9024:     );
 9025:     $r->print('<p>'
 9026:              .&mt('Exact matches for [_1][quant,_2,student][_3].','<b>',$passed,'</b>')
 9027:              .'<br />'
 9028:              .&mt('Discrepancies detected for [_1][quant,_2,student][_3].','<b>',$failed,'</b>')
 9029:              .'</p>'
 9030:     );
 9031:     if ($passed) {
 9032:         $r->print(&mt('Students with exact correspondence between bubblesheet data and submissions are as follows:').'<br /><br />');
 9033:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9034:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9035:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9036:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9037:                  $okstudents."\n".
 9038:                  &Apache::loncommon::end_data_table().'<br />');
 9039:     }
 9040:     if ($failed) {
 9041:         $r->print(&mt('Students with differences between bubblesheet data and submissions are as follows:').'<br /><br />');
 9042:         $r->print(&Apache::loncommon::start_data_table()."\n".
 9043:                  &Apache::loncommon::start_data_table_header_row()."\n".
 9044:                  '<th>'.&mt('Source').'</th><th>'.&mt('Bubble records').'</th><th>'.&mt('Name').'</th><th>'.&mt('ID').'</th>'.
 9045:                  &Apache::loncommon::end_data_table_header_row()."\n".
 9046:                  $badstudents."\n".
 9047:                  &Apache::loncommon::end_data_table()).'<br />'.
 9048:                  &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.');  
 9049:     }
 9050:     $r->print('</form><br />');
 9051:     return;
 9052: }
 9053: 
 9054: sub verify_scantron_grading {
 9055:     my ($resource,$domain,$username,$cid,$counter,$scandata,$partids,
 9056:         $scantron_config,$lettdig,$numletts,$randomorder,$randompick,
 9057:         $respnumlookup,$startline) = @_;
 9058:     my ($record,%expected,%startpos);
 9059:     return ($counter,$record) if (!ref($resource));
 9060:     return ($counter,$record) if (!$resource->is_problem());
 9061:     my $symb = $resource->symb();
 9062:     return ($counter,$record) if (ref($partids) ne 'ARRAY');
 9063:     foreach my $part_id (@{$partids}) {
 9064:         $counter ++;
 9065:         $expected{$part_id} = 0;
 9066:         my $respnum = $counter;
 9067:         if ($randomorder || $randompick) {
 9068:             $respnum = $respnumlookup->{$counter};
 9069:             $startpos{$part_id} = $startline->{$counter} + 1;
 9070:         } else {
 9071:             $startpos{$part_id} = $env{"form.scantron.first_bubble_line.$counter"};
 9072:         }
 9073:         if ($env{"form.scantron.sub_bubblelines.$respnum"}) {
 9074:             my @sub_lines = split(/,/,$env{"form.scantron.sub_bubblelines.$respnum"});
 9075:             foreach my $item (@sub_lines) {
 9076:                 $expected{$part_id} += $item;
 9077:             }
 9078:         } else {
 9079:             $expected{$part_id} = $env{"form.scantron.bubblelines.$respnum"};
 9080:         }
 9081:     }
 9082:     if ($symb) {
 9083:         my %recorded;
 9084:         my (%returnhash) = &Apache::lonnet::restore($symb,$cid,$domain,$username);
 9085:         if ($returnhash{'version'}) {
 9086:             my %lasthash=();
 9087:             my $version;
 9088:             for ($version=1;$version<=$returnhash{'version'};$version++) {
 9089:                 foreach my $key (sort(split(/\:/,$returnhash{$version.':keys'}))) {
 9090:                     $lasthash{$key}=$returnhash{$version.':'.$key};
 9091:                 }
 9092:             }
 9093:             foreach my $key (keys(%lasthash)) {
 9094:                 if ($key =~ /\.scantron$/) {
 9095:                     my $value = &unescape($lasthash{$key});
 9096:                     my ($part_id) = ($key =~ /^resource\.(.+)\.scantron$/);
 9097:                     if ($value eq '') {
 9098:                         for (my $i=0; $i<$expected{$part_id}; $i++) {
 9099:                             for (my $j=0; $j<$scantron_config->{'length'}; $j++) {
 9100:                                 $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9101:                             }
 9102:                         }
 9103:                     } else {
 9104:                         my @tocheck;
 9105:                         my @items = split(//,$value);
 9106:                         if (($scantron_config->{'Qon'} eq 'letter') ||
 9107:                             ($scantron_config->{'Qon'} eq 'number')) {
 9108:                             if (@items < $expected{$part_id}) {
 9109:                                 my $fragment = substr($scandata,$startpos{$part_id},$expected{$part_id});
 9110:                                 my @singles = split(//,$fragment);
 9111:                                 foreach my $pos (@singles) {
 9112:                                     if ($pos eq ' ') {
 9113:                                         push(@tocheck,$pos);
 9114:                                     } else {
 9115:                                         my $next = shift(@items);
 9116:                                         push(@tocheck,$next);
 9117:                                     }
 9118:                                 }
 9119:                             } else {
 9120:                                 @tocheck = @items;
 9121:                             }
 9122:                             foreach my $letter (@tocheck) {
 9123:                                 if ($scantron_config->{'Qon'} eq 'letter') {
 9124:                                     if ($letter !~ /^[A-J]$/) {
 9125:                                         $letter = $scantron_config->{'Qoff'};
 9126:                                     }
 9127:                                     $recorded{$part_id} .= $letter;
 9128:                                 } elsif ($scantron_config->{'Qon'} eq 'number') {
 9129:                                     my $digit;
 9130:                                     if ($letter !~ /^[A-J]$/) {
 9131:                                         $digit = $scantron_config->{'Qoff'};
 9132:                                     } else {
 9133:                                         $digit = $lettdig->{$letter};
 9134:                                     }
 9135:                                     $recorded{$part_id} .= $digit;
 9136:                                 }
 9137:                             }
 9138:                         } else {
 9139:                             @tocheck = @items;
 9140:                             for (my $i=0; $i<$expected{$part_id}; $i++) {
 9141:                                 my $curr_sub = shift(@tocheck);
 9142:                                 my $digit;
 9143:                                 if ($curr_sub =~ /^[A-J]$/) {
 9144:                                     $digit = $lettdig->{$curr_sub}-1;
 9145:                                 }
 9146:                                 if ($curr_sub eq 'J') {
 9147:                                     $digit += scalar($numletts);
 9148:                                 }
 9149:                                 for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9150:                                     if ($j == $digit) {
 9151:                                         $recorded{$part_id} .= $scantron_config->{'Qon'};
 9152:                                     } else {
 9153:                                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9154:                                     }
 9155:                                 }
 9156:                             }
 9157:                         }
 9158:                     }
 9159:                 }
 9160:             }
 9161:         }
 9162:         foreach my $part_id (@{$partids}) {
 9163:             if ($recorded{$part_id} eq '') {
 9164:                 for (my $i=0; $i<$expected{$part_id}; $i++) {
 9165:                     for (my $j=0; $j<$scantron_config->{'Qlength'}; $j++) {
 9166:                         $recorded{$part_id} .= $scantron_config->{'Qoff'};
 9167:                     }
 9168:                 }
 9169:             }
 9170:             $record .= $recorded{$part_id};
 9171:         }
 9172:     }
 9173:     return ($counter,$record);
 9174: }
 9175: 
 9176: sub letter_to_digits {
 9177:     my %lettdig = (
 9178:                     A => 1,
 9179:                     B => 2,
 9180:                     C => 3,
 9181:                     D => 4,
 9182:                     E => 5,
 9183:                     F => 6,
 9184:                     G => 7,
 9185:                     H => 8,
 9186:                     I => 9,
 9187:                     J => 0,
 9188:                   );
 9189:     return %lettdig;
 9190: }
 9191: 
 9192: 
 9193: #-------- end of section for handling grading scantron forms -------
 9194: #
 9195: #-------------------------------------------------------------------
 9196: 
 9197: #-------------------------- Menu interface -------------------------
 9198: #
 9199: #--- Href with symb and command ---
 9200: 
 9201: sub href_symb_cmd {
 9202:     my ($symb,$cmd)=@_;
 9203:     return '/adm/grades?symb='.&HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb),'<>&"').'&amp;command='.$cmd;
 9204: }
 9205: 
 9206: sub grading_menu {
 9207:     my ($request,$symb) = @_;
 9208:     if (!$symb) {return '';}
 9209: 
 9210:     my %fields = ('symb'=>&Apache::lonenc::check_encrypt($symb),
 9211:                   'command'=>'individual');
 9212:     
 9213:     my $url1a = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9214: 
 9215:     $fields{'command'}='ungraded';
 9216:     my $url1b=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9217: 
 9218:     $fields{'command'}='table';
 9219:     my $url1c=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9220: 
 9221:     $fields{'command'}='all_for_one';
 9222:     my $url1d=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9223: 
 9224:     $fields{'command'}='downloadfilesselect';
 9225:     my $url1e=&Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9226: 
 9227:     $fields{'command'} = 'csvform';
 9228:     my $url2 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9229:     
 9230:     $fields{'command'} = 'processclicker';
 9231:     my $url3 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9232:     
 9233:     $fields{'command'} = 'scantron_selectphase';
 9234:     my $url4 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9235: 
 9236:     $fields{'command'} = 'initialverifyreceipt';
 9237:     my $url5 = &Apache::lonhtmlcommon::build_url('grades/',\%fields);
 9238:     
 9239:     my @menu = ({	categorytitle=>'Hand Grading',
 9240:             items =>[
 9241:                         {	linktext => 'Select individual students to grade',
 9242:                     		url => $url1a,
 9243:                     		permission => 'F',
 9244:                     		icon => 'grade_students.png',
 9245:                     		linktitle => 'Grade current resource for a selection of students.'
 9246:                         }, 
 9247:                         {       linktext => 'Grade ungraded submissions.',
 9248:                                 url => $url1b,
 9249:                                 permission => 'F',
 9250:                                 icon => 'ungrade_sub.png',
 9251:                                 linktitle => 'Grade all submissions that have not been graded yet.'
 9252:                         },
 9253: 
 9254:                         {       linktext => 'Grading table',
 9255:                                 url => $url1c,
 9256:                                 permission => 'F',
 9257:                                 icon => 'grading_table.png',
 9258:                                 linktitle => 'Grade current resource for all students.'
 9259:                         },
 9260:                         {       linktext => 'Grade page/folder for one student',
 9261:                                 url => $url1d,
 9262:                                 permission => 'F',
 9263:                                 icon => 'grade_PageFolder.png',
 9264:                                 linktitle => 'Grade all resources in current page/sequence/folder for one student.'
 9265:                         },
 9266:                         {       linktext => 'Download submissions',
 9267:                                 url => $url1e,
 9268:                                 permission => 'F',
 9269:                                 icon => 'download_sub.png',
 9270:                                 linktitle => 'Download all students submissions.'
 9271:                         }]},
 9272:                          { categorytitle=>'Automated Grading',
 9273:                items =>[
 9274: 
 9275:                 	    {	linktext => 'Upload Scores',
 9276:                     		url => $url2,
 9277:                     		permission => 'F',
 9278:                     		icon => 'uploadscores.png',
 9279:                     		linktitle => 'Specify a file containing the class scores for current resource.'
 9280:                 	    },
 9281:                 	    {	linktext => 'Process Clicker',
 9282:                     		url => $url3,
 9283:                     		permission => 'F',
 9284:                     		icon => 'addClickerInfoFile.png',
 9285:                     		linktitle => 'Specify a file containing the clicker information for this resource.'
 9286:                 	    },
 9287:                 	    {	linktext => 'Grade/Manage/Review Bubblesheets',
 9288:                     		url => $url4,
 9289:                     		permission => 'F',
 9290:                     		icon => 'bubblesheet.png',
 9291:                     		linktitle => 'Grade bubblesheet exams, upload/download bubblesheet data files, and review previously graded bubblesheet exams.'
 9292:                 	    },
 9293:                             {   linktext => 'Verify Receipt Number',
 9294:                                 url => $url5,
 9295:                                 permission => 'F',
 9296:                                 icon => 'receipt_number.png',
 9297:                                 linktitle => 'Verify a system-generated receipt number for correct problem solution.'
 9298:                             }
 9299: 
 9300:                     ]
 9301:             });
 9302: 
 9303:     # Create the menu
 9304:     my $Str;
 9305:     $Str .= '<form method="post" action="" name="gradingMenu">';
 9306:     $Str .= '<input type="hidden" name="command" value="" />'.
 9307:     	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 9308: 
 9309:     $Str .= &Apache::lonhtmlcommon::generate_menu(@menu);
 9310:     return $Str;    
 9311: }
 9312: 
 9313: 
 9314: sub ungraded {
 9315:     my ($request)=@_;
 9316:     &submit_options($request);
 9317: }
 9318: 
 9319: sub submit_options_sequence {
 9320:     my ($request,$symb) = @_;
 9321:     if (!$symb) {return '';}
 9322:     &commonJSfunctions($request);
 9323:     my $result;
 9324: 
 9325:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9326:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 9327:     $result.=&selectfield(0).
 9328:             '<input type="hidden" name="command" value="pickStudentPage" />
 9329:             <div>
 9330:               <input type="submit" value="'.&mt('Next').' &rarr;" />
 9331:             </div>
 9332:         </div>
 9333:   </form>';
 9334:     return $result;
 9335: }
 9336: 
 9337: sub submit_options_table {
 9338:     my ($request,$symb) = @_;
 9339:     if (!$symb) {return '';}
 9340:     &commonJSfunctions($request);
 9341:     my $result;
 9342: 
 9343:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9344:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 9345: 
 9346:     $result.=&selectfield(0).
 9347:             '<input type="hidden" name="command" value="viewgrades" />
 9348:             <div>
 9349:               <input type="submit" value="'.&mt('Next').' &rarr;" />
 9350:             </div>
 9351:         </div>
 9352:   </form>';
 9353:     return $result;
 9354: }
 9355: 
 9356: sub submit_options_download {
 9357:     my ($request,$symb) = @_;
 9358:     if (!$symb) {return '';}
 9359: 
 9360:     &commonJSfunctions($request);
 9361: 
 9362:     my $result='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9363:         '<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 9364:     $result.='
 9365: <h2>
 9366:   '.&mt('Select Students for Which to Download Submissions').'
 9367: </h2>'.&selectfield(1).'
 9368:                 <input type="hidden" name="command" value="downloadfileslink" /> 
 9369:               <input type="submit" value="'.&mt('Next').' &rarr;" />
 9370:             </div>
 9371:           </div>
 9372: 
 9373: 
 9374:   </form>';
 9375:     return $result;
 9376: }
 9377: 
 9378: #--- Displays the submissions first page -------
 9379: sub submit_options {
 9380:     my ($request,$symb) = @_;
 9381:     if (!$symb) {return '';}
 9382: 
 9383:     &commonJSfunctions($request);
 9384:     my $result;
 9385: 
 9386:     $result.='<form action="/adm/grades" method="post" name="gradingMenu">'."\n".
 9387: 	'<input type="hidden" name="symb"        value="'.&Apache::lonenc::check_encrypt($symb).'" />'."\n";
 9388:     $result.=&selectfield(1).'
 9389:                 <input type="hidden" name="command" value="submission" /> 
 9390: 	      <input type="submit" value="'.&mt('Next').' &rarr;" />
 9391:             </div>
 9392:           </div>
 9393: 
 9394: 
 9395:   </form>';
 9396:     return $result;
 9397: }
 9398: 
 9399: sub selectfield {
 9400:    my ($full)=@_;
 9401:    my %options = 
 9402:           (&Apache::lonlocal::texthash(
 9403:              'yes'       => 'with submissions',
 9404:              'queued'    => 'in grading queue',
 9405:              'graded'    => 'with ungraded submissions',
 9406:              'incorrect' => 'with incorrect submissions',
 9407:              'all'       => 'with any status'),
 9408:              'select_form_order' => ['yes','queued','graded','incorrect','all']);
 9409:    my $result='<div class="LC_columnSection">
 9410:   
 9411:     <fieldset>
 9412:       <legend>
 9413:        '.&mt('Sections').'
 9414:       </legend>
 9415:       '.&Apache::lonstatistics::SectionSelect('section','multiple',5).'
 9416:     </fieldset>
 9417:   
 9418:     <fieldset>
 9419:       <legend>
 9420:         '.&mt('Groups').'
 9421:       </legend>
 9422:       '.&Apache::lonstatistics::GroupSelect('group','multiple',5).'
 9423:     </fieldset>
 9424:   
 9425:     <fieldset>
 9426:       <legend>
 9427:         '.&mt('Access Status').'
 9428:       </legend>
 9429:       '.&Apache::lonhtmlcommon::StatusOptions(undef,undef,5,undef,'mult').'
 9430:     </fieldset>';
 9431:     if ($full) {
 9432:        $result.='
 9433:     <fieldset>
 9434:       <legend>
 9435:         '.&mt('Submission Status').'
 9436:       </legend>'.
 9437:        &Apache::loncommon::select_form('all','submitonly',\%options).
 9438:    '</fieldset>';
 9439:     }
 9440:     $result.='</div><br />';
 9441:     return $result;
 9442: }
 9443: 
 9444: sub reset_perm {
 9445:     undef(%perm);
 9446: }
 9447: 
 9448: sub init_perm {
 9449:     &reset_perm();
 9450:     foreach my $test_perm ('vgr','mgr','opa') {
 9451: 
 9452: 	my $scope = $env{'request.course.id'};
 9453: 	if (!($perm{$test_perm}=&Apache::lonnet::allowed($test_perm,$scope))) {
 9454: 
 9455: 	    $scope .= '/'.$env{'request.course.sec'};
 9456: 	    if ( $perm{$test_perm}=
 9457: 		 &Apache::lonnet::allowed($test_perm,$scope)) {
 9458: 		$perm{$test_perm.'_section'}=$env{'request.course.sec'};
 9459: 	    } else {
 9460: 		delete($perm{$test_perm});
 9461: 	    }
 9462: 	}
 9463:     }
 9464: }
 9465: 
 9466: sub init_old_essays {
 9467:     my ($symb,$apath,$adom,$aname) = @_;
 9468:     if ($symb ne '') {
 9469:         my %essays = &Apache::lonnet::dump('nohist_essay_'.$apath,$adom,$aname);
 9470:         if (keys(%essays) > 0) {
 9471:             $old_essays{$symb} = \%essays;
 9472:         }
 9473:     }
 9474:     return;
 9475: }
 9476: 
 9477: sub reset_old_essays {
 9478:     undef(%old_essays);
 9479: }
 9480: 
 9481: sub gather_clicker_ids {
 9482:     my %clicker_ids;
 9483: 
 9484:     my $classlist = &Apache::loncoursedata::get_classlist();
 9485: 
 9486:     # Set up a couple variables.
 9487:     my $username_idx = &Apache::loncoursedata::CL_SNAME();
 9488:     my $domain_idx   = &Apache::loncoursedata::CL_SDOM();
 9489:     my $status_idx   = &Apache::loncoursedata::CL_STATUS();
 9490: 
 9491:     foreach my $student (keys(%$classlist)) {
 9492:         if ($classlist->{$student}->[$status_idx] ne 'Active') { next; }
 9493:         my $username = $classlist->{$student}->[$username_idx];
 9494:         my $domain   = $classlist->{$student}->[$domain_idx];
 9495:         my $clickers =
 9496: 	    (&Apache::lonnet::userenvironment($domain,$username,'clickers'))[1];
 9497:         foreach my $id (split(/\,/,$clickers)) {
 9498:             $id=~s/^[\#0]+//;
 9499:             $id=~s/[\-\:]//g;
 9500:             if (exists($clicker_ids{$id})) {
 9501: 		$clicker_ids{$id}.=','.$username.':'.$domain;
 9502:             } else {
 9503: 		$clicker_ids{$id}=$username.':'.$domain;
 9504:             }
 9505:         }
 9506:     }
 9507:     return %clicker_ids;
 9508: }
 9509: 
 9510: sub gather_adv_clicker_ids {
 9511:     my %clicker_ids;
 9512:     my $cnum=$env{'course.'.$env{'request.course.id'}.'.num'};
 9513:     my $cdom=$env{'course.'.$env{'request.course.id'}.'.domain'};
 9514:     my %coursepersonnel=&Apache::lonnet::get_course_adv_roles($cdom.'/'.$cnum);
 9515:     foreach my $element (sort(keys(%coursepersonnel))) {
 9516:         foreach my $person (split(/\,/,$coursepersonnel{$element})) {
 9517:             my ($puname,$pudom)=split(/\:/,$person);
 9518:             my $clickers =
 9519: 		(&Apache::lonnet::userenvironment($pudom,$puname,'clickers'))[1];
 9520:             foreach my $id (split(/\,/,$clickers)) {
 9521: 		$id=~s/^[\#0]+//;
 9522:                 $id=~s/[\-\:]//g;
 9523: 		if (exists($clicker_ids{$id})) {
 9524: 		    $clicker_ids{$id}.=','.$puname.':'.$pudom;
 9525: 		} else {
 9526: 		    $clicker_ids{$id}=$puname.':'.$pudom;
 9527: 		}
 9528:             }
 9529:         }
 9530:     }
 9531:     return %clicker_ids;
 9532: }
 9533: 
 9534: sub clicker_grading_parameters {
 9535:     return ('gradingmechanism' => 'scalar',
 9536:             'upfiletype' => 'scalar',
 9537:             'specificid' => 'scalar',
 9538:             'pcorrect' => 'scalar',
 9539:             'pincorrect' => 'scalar');
 9540: }
 9541: 
 9542: sub process_clicker {
 9543:     my ($r,$symb)=@_;
 9544:     if (!$symb) {return '';}
 9545:     my $result=&checkforfile_js();
 9546:     $result.=&Apache::loncommon::start_data_table().
 9547:              &Apache::loncommon::start_data_table_header_row().
 9548:              '<th>'.&mt('Specify a file containing clicker information and set grading options.').'</th>'.
 9549:              &Apache::loncommon::end_data_table_header_row().
 9550:              &Apache::loncommon::start_data_table_row()."<td>\n";
 9551: # Attempt to restore parameters from last session, set defaults if not present
 9552:     my %Saveable_Parameters=&clicker_grading_parameters();
 9553:     &Apache::loncommon::restore_course_settings('grades_clicker',
 9554:                                                  \%Saveable_Parameters);
 9555:     if (!$env{'form.pcorrect'}) { $env{'form.pcorrect'}=100; }
 9556:     if (!$env{'form.pincorrect'}) { $env{'form.pincorrect'}=100; }
 9557:     if (!$env{'form.gradingmechanism'}) { $env{'form.gradingmechanism'}='attendance'; }
 9558:     if (!$env{'form.upfiletype'}) { $env{'form.upfiletype'}='iclicker'; }
 9559: 
 9560:     my %checked;
 9561:     foreach my $gradingmechanism ('attendance','personnel','specific','given') {
 9562:        if ($env{'form.gradingmechanism'} eq $gradingmechanism) {
 9563:           $checked{$gradingmechanism}=' checked="checked"';
 9564:        }
 9565:     }
 9566: 
 9567:     my $upload=&mt("Evaluate File");
 9568:     my $type=&mt("Type");
 9569:     my $attendance=&mt("Award points just for participation");
 9570:     my $personnel=&mt("Correctness determined from response by course personnel");
 9571:     my $specific=&mt("Correctness determined from response with clicker ID(s)"); 
 9572:     my $given=&mt("Correctness determined from given list of answers").' '.
 9573:               '<font size="-2"><tt>('.&mt("Provide comma-separated list. Use '*' for any answer correct, '-' for skip").')</tt></font>';
 9574:     my $pcorrect=&mt("Percentage points for correct solution");
 9575:     my $pincorrect=&mt("Percentage points for incorrect solution");
 9576:     my $selectform=&Apache::loncommon::select_form($env{'form.upfiletype'},'upfiletype',
 9577: 						   {'iclicker' => 'i>clicker',
 9578:                                                     'interwrite' => 'interwrite PRS',
 9579:                                                     'turning' => 'Turning Technologies'});
 9580:     $symb = &Apache::lonenc::check_encrypt($symb);
 9581:     $result.= &Apache::lonhtmlcommon::scripttag(<<ENDUPFORM);
 9582: function sanitycheck() {
 9583: // Accept only integer percentages
 9584:    document.forms.gradesupload.pcorrect.value=Math.round(document.forms.gradesupload.pcorrect.value);
 9585:    document.forms.gradesupload.pincorrect.value=Math.round(document.forms.gradesupload.pincorrect.value);
 9586: // Find out grading choice
 9587:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9588:       if (document.forms.gradesupload.gradingmechanism[i].checked) {
 9589:          gradingchoice=document.forms.gradesupload.gradingmechanism[i].value;
 9590:       }
 9591:    }
 9592: // By default, new choice equals user selection
 9593:    newgradingchoice=gradingchoice;
 9594: // Not good to give more points for false answers than correct ones
 9595:    if (Math.round(document.forms.gradesupload.pcorrect.value)<Math.round(document.forms.gradesupload.pincorrect.value)) {
 9596:       document.forms.gradesupload.pcorrect.value=document.forms.gradesupload.pincorrect.value;
 9597:    }
 9598: // If new choice is attendance only, and old choice was correctness-based, restore defaults
 9599:    if ((gradingchoice=='attendance') && (document.forms.gradesupload.waschecked.value!='attendance')) {
 9600:       document.forms.gradesupload.pcorrect.value=100;
 9601:       document.forms.gradesupload.pincorrect.value=100;
 9602:    }
 9603: // If the values are different, cannot be attendance only
 9604:    if ((Math.round(document.forms.gradesupload.pcorrect.value)!=Math.round(document.forms.gradesupload.pincorrect.value)) &&
 9605:        (gradingchoice=='attendance')) {
 9606:        newgradingchoice='personnel';
 9607:    }
 9608: // Change grading choice to new one
 9609:    for (i=0; i<document.forms.gradesupload.gradingmechanism.length; i++) {
 9610:       if (document.forms.gradesupload.gradingmechanism[i].value==newgradingchoice) {
 9611:          document.forms.gradesupload.gradingmechanism[i].checked=true;
 9612:       } else {
 9613:          document.forms.gradesupload.gradingmechanism[i].checked=false;
 9614:       }
 9615:    }
 9616: // Remember the old state
 9617:    document.forms.gradesupload.waschecked.value=newgradingchoice;
 9618: }
 9619: ENDUPFORM
 9620:     $result.= <<ENDUPFORM;
 9621: <form method="post" enctype="multipart/form-data" action="/adm/grades" name="gradesupload">
 9622: <input type="hidden" name="symb" value="$symb" />
 9623: <input type="hidden" name="command" value="processclickerfile" />
 9624: <input type="file" name="upfile" size="50" />
 9625: <br /><label>$type: $selectform</label>
 9626: ENDUPFORM
 9627:     $result.='</td>'.&Apache::loncommon::end_data_table_row().
 9628:                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDGRADINGFORM);
 9629:       <label><input type="radio" name="gradingmechanism" value="attendance"$checked{'attendance'} onclick="sanitycheck()" />$attendance </label>
 9630: <br /><label><input type="radio" name="gradingmechanism" value="personnel"$checked{'personnel'} onclick="sanitycheck()" />$personnel</label>
 9631: <br /><label><input type="radio" name="gradingmechanism" value="specific"$checked{'specific'} onclick="sanitycheck()" />$specific </label>
 9632: <input type="text" name="specificid" value="$env{'form.specificid'}" size="20" />
 9633: <br /><label><input type="radio" name="gradingmechanism" value="given"$checked{'given'} onclick="sanitycheck()" />$given </label>
 9634: <br />&nbsp;&nbsp;&nbsp;
 9635: <input type="text" name="givenanswer" size="50" />
 9636: <input type="hidden" name="waschecked" value="$env{'form.gradingmechanism'}" />
 9637: ENDGRADINGFORM
 9638:          $result.='</td>'.&Apache::loncommon::end_data_table_row().
 9639:                      &Apache::loncommon::start_data_table_row().'<td>'.(<<ENDPERCFORM);
 9640:       <label>$pcorrect: <input type="text" name="pcorrect" size="4" value="$env{'form.pcorrect'}" onchange="sanitycheck()" /></label>
 9641: <br /><label>$pincorrect: <input type="text" name="pincorrect" size="4" value="$env{'form.pincorrect'}" onchange="sanitycheck()" /></label>
 9642: <br /><input type="button" onclick="javascript:checkUpload(this.form);" value="$upload" />
 9643: </form>'
 9644: ENDPERCFORM
 9645:     $result.='</td>'.
 9646:              &Apache::loncommon::end_data_table_row().
 9647:              &Apache::loncommon::end_data_table();
 9648:     return $result;
 9649: }
 9650: 
 9651: sub process_clicker_file {
 9652:     my ($r,$symb)=@_;
 9653:     if (!$symb) {return '';}
 9654: 
 9655:     my %Saveable_Parameters=&clicker_grading_parameters();
 9656:     &Apache::loncommon::store_course_settings('grades_clicker',
 9657:                                               \%Saveable_Parameters);
 9658:     my $result='';
 9659:     if (($env{'form.gradingmechanism'} eq 'specific') && ($env{'form.specificid'}!~/\w/)) {
 9660: 	$result.='<span class="LC_error">'.&mt('You need to specify a clicker ID for the correct answer').'</span>';
 9661: 	return $result;
 9662:     }
 9663:     if (($env{'form.gradingmechanism'} eq 'given') && ($env{'form.givenanswer'}!~/\S/)) {
 9664:         $result.='<span class="LC_error">'.&mt('You need to specify the correct answer').'</span>';
 9665:         return $result;
 9666:     }
 9667:     my $foundgiven=0;
 9668:     if ($env{'form.gradingmechanism'} eq 'given') {
 9669:         $env{'form.givenanswer'}=~s/^\s*//gs;
 9670:         $env{'form.givenanswer'}=~s/\s*$//gs;
 9671:         $env{'form.givenanswer'}=~s/[^a-zA-Z0-9\.\*\-\+]+/\,/g;
 9672:         $env{'form.givenanswer'}=uc($env{'form.givenanswer'});
 9673:         my @answers=split(/\,/,$env{'form.givenanswer'});
 9674:         $foundgiven=$#answers+1;
 9675:     }
 9676:     my %clicker_ids=&gather_clicker_ids();
 9677:     my %correct_ids;
 9678:     if ($env{'form.gradingmechanism'} eq 'personnel') {
 9679: 	%correct_ids=&gather_adv_clicker_ids();
 9680:     }
 9681:     if ($env{'form.gradingmechanism'} eq 'specific') {
 9682: 	foreach my $correct_id (split(/[\s\,]/,$env{'form.specificid'})) {;
 9683: 	   $correct_id=~tr/a-z/A-Z/;
 9684: 	   $correct_id=~s/\s//gs;
 9685: 	   $correct_id=~s/^[\#0]+//;
 9686:            $correct_id=~s/[\-\:]//g;
 9687:            if ($correct_id) {
 9688: 	      $correct_ids{$correct_id}='specified';
 9689:            }
 9690:         }
 9691:     }
 9692:     if ($env{'form.gradingmechanism'} eq 'attendance') {
 9693: 	$result.=&mt('Score based on attendance only');
 9694:     } elsif ($env{'form.gradingmechanism'} eq 'given') {
 9695:         $result.=&mt('Score based on [_1] ([_2] answers)','<tt>'.$env{'form.givenanswer'}.'</tt>',$foundgiven);
 9696:     } else {
 9697: 	my $number=0;
 9698: 	$result.='<p><b>'.&mt('Correctness determined by the following IDs').'</b>';
 9699: 	foreach my $id (sort(keys(%correct_ids))) {
 9700: 	    $result.='<br /><tt>'.$id.'</tt> - ';
 9701: 	    if ($correct_ids{$id} eq 'specified') {
 9702: 		$result.=&mt('specified');
 9703: 	    } else {
 9704: 		my ($uname,$udom)=split(/\:/,$correct_ids{$id});
 9705: 		$result.=&Apache::loncommon::plainname($uname,$udom);
 9706: 	    }
 9707: 	    $number++;
 9708: 	}
 9709:         $result.="</p>\n";
 9710: 	if ($number==0) {
 9711: 	    $result.='<span class="LC_error">'.&mt('No IDs found to determine correct answer').'</span>';
 9712: 	    return $result;
 9713: 	}
 9714:     }
 9715:     if (length($env{'form.upfile'}) < 2) {
 9716:         $result.=&mt('[_1] Error: [_2] The file you attempted to upload, [_3] contained no information. Please check that you entered the correct filename.',
 9717: 		     '<span class="LC_error">',
 9718: 		     '</span>',
 9719: 		     '<span class="LC_filename">'.&HTML::Entities::encode($env{'form.upfile.filename'},'<>&"').'</span>');
 9720:         return $result;
 9721:     }
 9722: 
 9723: # Were able to get all the info needed, now analyze the file
 9724: 
 9725:     $result.=&Apache::loncommon::studentbrowser_javascript();
 9726:     $symb = &Apache::lonenc::check_encrypt($symb);
 9727:     $result.=&Apache::loncommon::start_data_table().
 9728:              &Apache::loncommon::start_data_table_header_row().
 9729:              '<th>'.&mt('Evaluate clicker file').'</th>'.
 9730:              &Apache::loncommon::end_data_table_header_row().
 9731:              &Apache::loncommon::start_data_table_row().(<<ENDHEADER);
 9732: <td>
 9733: <form method="post" action="/adm/grades" name="clickeranalysis">
 9734: <input type="hidden" name="symb" value="$symb" />
 9735: <input type="hidden" name="command" value="assignclickergrades" />
 9736: <input type="hidden" name="gradingmechanism" value="$env{'form.gradingmechanism'}" />
 9737: <input type="hidden" name="pcorrect" value="$env{'form.pcorrect'}" />
 9738: <input type="hidden" name="pincorrect" value="$env{'form.pincorrect'}" />
 9739: ENDHEADER
 9740:     if ($env{'form.gradingmechanism'} eq 'given') {
 9741:        $result.='<input type="hidden" name="correct:given" value="'.$env{'form.givenanswer'}.'" />';
 9742:     } 
 9743:     my %responses;
 9744:     my @questiontitles;
 9745:     my $errormsg='';
 9746:     my $number=0;
 9747:     if ($env{'form.upfiletype'} eq 'iclicker') {
 9748: 	($errormsg,$number)=&iclicker_eval(\@questiontitles,\%responses);
 9749:     }
 9750:     if ($env{'form.upfiletype'} eq 'interwrite') {
 9751:         ($errormsg,$number)=&interwrite_eval(\@questiontitles,\%responses);
 9752:     }
 9753:     if ($env{'form.upfiletype'} eq 'turning') {
 9754:         ($errormsg,$number)=&turning_eval(\@questiontitles,\%responses);
 9755:     }
 9756:     $result.='<br />'.&mt('Found [_1] question(s)',$number).'<br />'.
 9757:              '<input type="hidden" name="number" value="'.$number.'" />'.
 9758:              &mt('Awarding [_1] percent for correct and [_2] percent for incorrect responses',
 9759:                  $env{'form.pcorrect'},$env{'form.pincorrect'}).
 9760:              '<br />';
 9761:     if (($env{'form.gradingmechanism'} eq 'given') && ($number!=$foundgiven)) {
 9762:        $result.='<span class="LC_error">'.&mt('Number of given answers does not agree with number of questions in file.').'</span>';
 9763:        return $result;
 9764:     } 
 9765: # Remember Question Titles
 9766: # FIXME: Possibly need delimiter other than ":"
 9767:     for (my $i=0;$i<$number;$i++) {
 9768:         $result.='<input type="hidden" name="question:'.$i.'" value="'.
 9769:                  &HTML::Entities::encode($questiontitles[$i],'"&<>').'" />';
 9770:     }
 9771:     my $correct_count=0;
 9772:     my $student_count=0;
 9773:     my $unknown_count=0;
 9774: # Match answers with usernames
 9775: # FIXME: Possibly need delimiter other than ":"
 9776:     foreach my $id (keys(%responses)) {
 9777:        if ($correct_ids{$id}) {
 9778:           $result.="\n".'<input type="hidden" name="correct:'.$correct_count.':'.$correct_ids{$id}.'" value="'.$responses{$id}.'" />';
 9779:           $correct_count++;
 9780:        } elsif ($clicker_ids{$id}) {
 9781:           if ($clicker_ids{$id}=~/\,/) {
 9782: # More than one user with the same clicker!
 9783:              $result.="</td>".&Apache::loncommon::end_data_table_row().
 9784:                            &Apache::loncommon::start_data_table_row()."<td>".
 9785:                        &mt('Clicker registered more than once').": <tt>".$id."</tt><br />";
 9786:              $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9787:                            "<select name='multi".$id."'>";
 9788:              foreach my $reguser (sort(split(/\,/,$clicker_ids{$id}))) {
 9789:                  $result.="<option value='".$reguser."'>".&Apache::loncommon::plainname(split(/\:/,$reguser)).' ('.$reguser.')</option>';
 9790:              }
 9791:              $result.='</select>';
 9792:              $unknown_count++;
 9793:           } else {
 9794: # Good: found one and only one user with the right clicker
 9795:              $result.="\n".'<input type="hidden" name="student:'.$clicker_ids{$id}.'" value="'.$responses{$id}.'" />';
 9796:              $student_count++;
 9797:           }
 9798:        } else {
 9799:           $result.="</td>".&Apache::loncommon::end_data_table_row().
 9800:                            &Apache::loncommon::start_data_table_row()."<td>".
 9801:                     &mt('Unregistered Clicker')." <tt>".$id."</tt><br />";
 9802:           $result.="\n".'<input type="hidden" name="unknown:'.$id.'" value="'.$responses{$id}.'" />'.
 9803:                    "\n".&mt("Username").": <input type='text' name='uname".$id."' />&nbsp;".
 9804:                    "\n".&mt("Domain").": ".
 9805:                    &Apache::loncommon::select_dom_form($env{'course.'.$env{'request.course.id'}.'.domain'},'udom'.$id).'&nbsp;'.
 9806:                    &Apache::loncommon::selectstudent_link('clickeranalysis','uname'.$id,'udom'.$id,0,$id);
 9807:           $unknown_count++;
 9808:        }
 9809:     }
 9810:     $result.='<hr />'.
 9811:              &mt('Found [_1] registered and [_2] unregistered clickers.',$student_count,$unknown_count);
 9812:     if (($env{'form.gradingmechanism'} ne 'attendance') && ($env{'form.gradingmechanism'} ne 'given')) {
 9813:        if ($correct_count==0) {
 9814:           $errormsg.="Found no correct answers for grading!";
 9815:        } elsif ($correct_count>1) {
 9816:           $result.='<br /><span class="LC_warning">'.&mt("Found [_1] entries for grading!",$correct_count).'</span>';
 9817:        }
 9818:     }
 9819:     if ($number<1) {
 9820:        $errormsg.="Found no questions.";
 9821:     }
 9822:     if ($errormsg) {
 9823:        $result.='<br /><span class="LC_error">'.&mt($errormsg).'</span>';
 9824:     } else {
 9825:        $result.='<br /><input type="submit" name="finalize" value="'.&mt('Finalize Grading').'" />';
 9826:     }
 9827:     $result.='</form></td>'.
 9828:              &Apache::loncommon::end_data_table_row().
 9829:              &Apache::loncommon::end_data_table();
 9830:     return $result;
 9831: }
 9832: 
 9833: sub iclicker_eval {
 9834:     my ($questiontitles,$responses)=@_;
 9835:     my $number=0;
 9836:     my $errormsg='';
 9837:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9838:         my %components=&Apache::loncommon::record_sep($line);
 9839:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9840: 	if ($entries[0] eq 'Question') {
 9841: 	    for (my $i=3;$i<$#entries;$i+=6) {
 9842: 		$$questiontitles[$number]=$entries[$i];
 9843: 		$number++;
 9844: 	    }
 9845: 	}
 9846: 	if ($entries[0]=~/^\#/) {
 9847: 	    my $id=$entries[0];
 9848: 	    my @idresponses;
 9849: 	    $id=~s/^[\#0]+//;
 9850: 	    for (my $i=0;$i<$number;$i++) {
 9851: 		my $idx=3+$i*6;
 9852:                 $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+]+//g;
 9853: 		push(@idresponses,$entries[$idx]);
 9854: 	    }
 9855: 	    $$responses{$id}=join(',',@idresponses);
 9856: 	}
 9857:     }
 9858:     return ($errormsg,$number);
 9859: }
 9860: 
 9861: sub interwrite_eval {
 9862:     my ($questiontitles,$responses)=@_;
 9863:     my $number=0;
 9864:     my $errormsg='';
 9865:     my $skipline=1;
 9866:     my $questionnumber=0;
 9867:     my %idresponses=();
 9868:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9869:         my %components=&Apache::loncommon::record_sep($line);
 9870:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9871:         if ($entries[1] eq 'Time') { $skipline=0; next; }
 9872:         if ($entries[1] eq 'Response') { $skipline=1; }
 9873:         next if $skipline;
 9874:         if ($entries[0]!=$questionnumber) {
 9875:            $questionnumber=$entries[0];
 9876:            $$questiontitles[$number]=&mt('Question [_1]',$questionnumber);
 9877:            $number++;
 9878:         }
 9879:         my $id=$entries[4];
 9880:         $id=~s/^[\#0]+//;
 9881:         $id=~s/^v\d*\://i;
 9882:         $id=~s/[\-\:]//g;
 9883:         $idresponses{$id}[$number]=$entries[6];
 9884:     }
 9885:     foreach my $id (keys(%idresponses)) {
 9886:        $$responses{$id}=join(',',@{$idresponses{$id}});
 9887:        $$responses{$id}=~s/^\s*\,//;
 9888:     }
 9889:     return ($errormsg,$number);
 9890: }
 9891: 
 9892: sub turning_eval {
 9893:     my ($questiontitles,$responses)=@_;
 9894:     my $number=0;
 9895:     my $errormsg='';
 9896:     foreach my $line (split(/[\n\r]/,$env{'form.upfile'})) {
 9897:         my %components=&Apache::loncommon::record_sep($line);
 9898:         my @entries=map {$components{$_}} (sort(keys(%components)));
 9899:         if ($#entries>$number) { $number=$#entries; }
 9900:         my $id=$entries[0];
 9901:         my @idresponses;
 9902:         $id=~s/^[\#0]+//;
 9903:         unless ($id) { next; }
 9904:         for (my $idx=1;$idx<=$#entries;$idx++) {
 9905:             $entries[$idx]=~s/\,/\;/g;
 9906:             $entries[$idx]=~s/[^a-zA-Z0-9\.\*\-\+\;]+//g;
 9907:             push(@idresponses,$entries[$idx]);
 9908:         }
 9909:         $$responses{$id}=join(',',@idresponses);
 9910:     }
 9911:     for (my $i=1; $i<=$number; $i++) {
 9912:         $$questiontitles[$i]=&mt('Question [_1]',$i);
 9913:     }
 9914:     return ($errormsg,$number);
 9915: }
 9916: 
 9917: 
 9918: sub assign_clicker_grades {
 9919:     my ($r,$symb)=@_;
 9920:     if (!$symb) {return '';}
 9921: # See which part we are saving to
 9922:     my $res_error;
 9923:     my ($partlist,$handgrade,$responseType) = &response_type($symb,\$res_error);
 9924:     if ($res_error) {
 9925:         return &navmap_errormsg();
 9926:     }
 9927: # FIXME: This should probably look for the first handgradeable part
 9928:     my $part=$$partlist[0];
 9929: # Start screen output
 9930:     my $result=&Apache::loncommon::start_data_table().
 9931:              &Apache::loncommon::start_data_table_header_row().
 9932:              '<th>'.&mt('Assigning grades based on clicker file').'</th>'.
 9933:              &Apache::loncommon::end_data_table_header_row().
 9934:              &Apache::loncommon::start_data_table_row().'<td>';
 9935: # Get correct result
 9936: # FIXME: Possibly need delimiter other than ":"
 9937:     my @correct=();
 9938:     my $gradingmechanism=$env{'form.gradingmechanism'};
 9939:     my $number=$env{'form.number'};
 9940:     if ($gradingmechanism ne 'attendance') {
 9941:        foreach my $key (keys(%env)) {
 9942:           if ($key=~/^form\.correct\:/) {
 9943:              my @input=split(/\,/,$env{$key});
 9944:              for (my $i=0;$i<=$#input;$i++) {
 9945:                  if (($correct[$i]) && ($input[$i]) &&
 9946:                      ($correct[$i] ne $input[$i])) {
 9947:                     $result.='<br /><span class="LC_warning">'.
 9948:                              &mt('More than one correct result given for question "[_1]": [_2] versus [_3].',
 9949:                                  $env{'form.question:'.$i},$correct[$i],$input[$i]).'</span>';
 9950:                  } elsif (($input[$i]) || ($input[$i] eq '0')) {
 9951:                     $correct[$i]=$input[$i];
 9952:                  }
 9953:              }
 9954:           }
 9955:        }
 9956:        for (my $i=0;$i<$number;$i++) {
 9957:           if ((!$correct[$i]) && ($correct[$i] ne '0')) {
 9958:              $result.='<br /><span class="LC_error">'.
 9959:                       &mt('No correct result given for question "[_1]"!',
 9960:                           $env{'form.question:'.$i}).'</span>';
 9961:           }
 9962:        }
 9963:        $result.='<br />'.&mt("Correct answer: [_1]",join(', ',map { ((($_) || ($_ eq '0'))?$_:'-') } @correct));
 9964:     }
 9965: # Start grading
 9966:     my $pcorrect=$env{'form.pcorrect'};
 9967:     my $pincorrect=$env{'form.pincorrect'};
 9968:     my $storecount=0;
 9969:     my %users=();
 9970:     foreach my $key (keys(%env)) {
 9971:        my $user='';
 9972:        if ($key=~/^form\.student\:(.*)$/) {
 9973:           $user=$1;
 9974:        }
 9975:        if ($key=~/^form\.unknown\:(.*)$/) {
 9976:           my $id=$1;
 9977:           if (($env{'form.uname'.$id}) && ($env{'form.udom'.$id})) {
 9978:              $user=$env{'form.uname'.$id}.':'.$env{'form.udom'.$id};
 9979:           } elsif ($env{'form.multi'.$id}) {
 9980:              $user=$env{'form.multi'.$id};
 9981:           }
 9982:        }
 9983:        if ($user) {
 9984:           if ($users{$user}) {
 9985:              $result.='<br /><span class="LC_warning">'.
 9986:                       &mt('More than one entry found for [_1]!','<tt>'.$user.'</tt>').
 9987:                       '</span><br />';
 9988:           }
 9989:           $users{$user}=1; 
 9990:           my @answer=split(/\,/,$env{$key});
 9991:           my $sum=0;
 9992:           my $realnumber=$number;
 9993:           for (my $i=0;$i<$number;$i++) {
 9994:              if  ($correct[$i] eq '-') {
 9995:                 $realnumber--;
 9996:              } elsif (($answer[$i]) || ($answer[$i]=~/^[0\.]+$/))  {
 9997:                 if ($gradingmechanism eq 'attendance') {
 9998:                    $sum+=$pcorrect;
 9999:                 } elsif ($correct[$i] eq '*') {
10000:                    $sum+=$pcorrect;
10001:                 } else {
10002: # We actually grade if correct or not
10003:                    my $increment=$pincorrect;
10004: # Special case: numerical answer "0"
10005:                    if ($correct[$i] eq '0') {
10006:                       if ($answer[$i]=~/^[0\.]+$/) {
10007:                          $increment=$pcorrect;
10008:                       }
10009: # General numerical answer, both evaluate to something non-zero
10010:                    } elsif ((1.0*$correct[$i]!=0) && (1.0*$answer[$i]!=0)) {
10011:                       if (1.0*$correct[$i]==1.0*$answer[$i]) {
10012:                          $increment=$pcorrect;
10013:                       }
10014: # Must be just alphanumeric
10015:                    } elsif ($answer[$i] eq $correct[$i]) {
10016:                       $increment=$pcorrect;
10017:                    }
10018:                    $sum+=$increment;
10019:                 }
10020:              }
10021:           }
10022:           my $ave=$sum/(100*$realnumber);
10023: # Store
10024:           my ($username,$domain)=split(/\:/,$user);
10025:           my %grades=();
10026:           $grades{"resource.$part.solved"}='correct_by_override';
10027:           $grades{"resource.$part.awarded"}=$ave;
10028:           $grades{"resource.regrader"}="$env{'user.name'}:$env{'user.domain'}";
10029:           my $returncode=&Apache::lonnet::cstore(\%grades,$symb,
10030:                                                  $env{'request.course.id'},
10031:                                                  $domain,$username);
10032:           if ($returncode ne 'ok') {
10033:              $result.="<br /><span class=\"LC_error\">Failed to save student $username:$domain. Message when trying to save was ($returncode)</span>";
10034:           } else {
10035:              $storecount++;
10036:           }
10037:        }
10038:     }
10039: # We are done
10040:     $result.='<br />'.&mt('Successfully stored grades for [quant,_1,student].',$storecount).
10041:              '</td>'.
10042:              &Apache::loncommon::end_data_table_row().
10043:              &Apache::loncommon::end_data_table();
10044:     return $result;
10045: }
10046: 
10047: sub navmap_errormsg {
10048:     return '<div class="LC_error">'.
10049:            &mt('An error occurred retrieving information about resources in the course.').'<br />'.
10050:            &mt('It is recommended that you [_1]re-initialize the course[_2] and then return to this grading page.','<a href="/adm/roles?selectrole=1&newrole='.$env{'request.role'}.'">','</a>').
10051:            '</div>';
10052: }
10053: 
10054: sub startpage {
10055:     my ($r,$symb,$crumbs,$onlyfolderflag,$nodisplayflag,$stuvcurrent,$stuvdisp,$nomenu,$js) = @_;
10056:     if ($nomenu) {
10057:         $r->print(&Apache::loncommon::start_page("Student's Version",$js,{'only_body' => '1'}));
10058:     } else {
10059:         unshift(@$crumbs,{href=>&href_symb_cmd($symb,'gradingmenu'),text=>"Grading"});
10060:         $r->print(&Apache::loncommon::start_page('Grading',$js,
10061:                                                  {'bread_crumbs' => $crumbs}));
10062:         &Apache::lonquickgrades::startGradeScreen($r,($env{'form.symb'}?'probgrading':'grading'));
10063:     }
10064:     unless ($nodisplayflag) {
10065:        $r->print(&Apache::lonhtmlcommon::resource_info_box($symb,$onlyfolderflag,$stuvcurrent,$stuvdisp));
10066:     }
10067: }
10068: 
10069: sub select_problem {
10070:     my ($r)=@_;
10071:     $r->print('<h3>'.&mt('Select the problem or one of the problems you want to grade').'</h3><form action="/adm/grades">');
10072:     $r->print(&Apache::lonstathelpers::problem_selector('.',undef,1));
10073:     $r->print('<input type="hidden" name="command" value="gradingmenu" />');
10074:     $r->print('<input type="submit" value="'.&mt('Next').' &rarr;" /></form>');
10075: }
10076: 
10077: sub handler {
10078:     my $request=$_[0];
10079:     &reset_caches();
10080:     if ($request->header_only) {
10081:         &Apache::loncommon::content_type($request,'text/html');
10082:         $request->send_http_header;
10083:         return OK;
10084:     }
10085:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});
10086: 
10087: # see what command we need to execute
10088: 
10089:     my @commands=&Apache::loncommon::get_env_multiple('form.command');
10090:     my $command=$commands[0];
10091: 
10092:     &init_perm();
10093:     if (!$env{'request.course.id'}) {
10094:         unless ((&Apache::lonnet::allowed('usc',$env{'request.role.domain'})) &&
10095:                 ($command =~ /^scantronupload/)) {
10096:             # Not in a course.
10097:             $env{'user.error.msg'}="/adm/grades::vgr:0:0:Cannot display grades page outside course context";
10098:             return HTTP_NOT_ACCEPTABLE;
10099:         }
10100:     } elsif (!%perm) {
10101:         $request->internal_redirect('/adm/quickgrades');
10102:         return OK;
10103:     }
10104:     &Apache::loncommon::content_type($request,'text/html');
10105:     $request->send_http_header;
10106: 
10107:     if ($#commands > 0) {
10108: 	&Apache::lonnet::logthis("grades got multiple commands ".join(':',@commands));
10109:     }
10110: 
10111: # see what the symb is
10112: 
10113:     my $symb=$env{'form.symb'};
10114:     unless ($symb) {
10115:        (my $url=$env{'form.url'}) =~ s-^https*://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
10116:        $symb=&Apache::lonnet::symbread($url);
10117:     }
10118:     &Apache::lonenc::check_decrypt(\$symb);
10119: 
10120:     $ssi_error = 0;
10121:     if (($symb eq '' || $command eq '') && ($env{'request.course.id'})) {
10122: #
10123: # Not called from a resource, but inside a course
10124: #    
10125:         &startpage($request,undef,[],1,1);
10126:         &select_problem($request);
10127:     } else {
10128: 	if ($command eq 'submission' && $perm{'vgr'}) {
10129:             my ($stuvcurrent,$stuvdisp,$versionform,$js);
10130:             if (($env{'form.student'} ne '') && ($env{'form.userdom'} ne '')) {
10131:                 ($stuvcurrent,$stuvdisp,$versionform,$js) =
10132:                     &choose_task_version_form($symb,$env{'form.student'},
10133:                                               $env{'form.userdom'});
10134:             }
10135:             &startpage($request,$symb,[{href=>"", text=>"Student Submissions"}],undef,undef,$stuvcurrent,$stuvdisp,undef,$js);
10136:             if ($versionform) {
10137:                 $request->print($versionform);
10138:             }
10139:             $request->print('<br clear="all" />');
10140: 	    ($env{'form.student'} eq '' ? &listStudents($request,$symb) : &submission($request,0,0,$symb));
10141:         } elsif ($command eq 'versionsub' && $perm{'vgr'}) {
10142:             my ($stuvcurrent,$stuvdisp,$versionform,$js) =
10143:                 &choose_task_version_form($symb,$env{'form.student'},
10144:                                           $env{'form.userdom'},
10145:                                           $env{'form.inhibitmenu'});
10146:             &startpage($request,$symb,[{href=>"", text=>"Previous Student Version"}],undef,undef,$stuvcurrent,$stuvdisp,$env{'form.inhibitmenu'},$js);
10147:             if ($versionform) {
10148:                 $request->print($versionform);
10149:             }
10150:             $request->print('<br clear="all" />');
10151:             $request->print(&show_previous_task_version($request,$symb));
10152: 	} elsif ($command eq 'pickStudentPage' && $perm{'vgr'}) {
10153:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
10154:                                        {href=>'',text=>'Select student'}],1,1);
10155: 	    &pickStudentPage($request,$symb);
10156: 	} elsif ($command eq 'displayPage' && $perm{'vgr'}) {
10157:             &startpage($request,$symb,
10158:                                       [{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
10159:                                        {href=>'',text=>'Select student'},
10160:                                        {href=>'',text=>'Grade student'}],1,1);
10161: 	    &displayPage($request,$symb);
10162: 	} elsif ($command eq 'gradeByPage' && $perm{'mgr'}) {
10163:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'all_for_one'),text=>'Grade page/folder for one student'},
10164:                                        {href=>'',text=>'Select student'},
10165:                                        {href=>'',text=>'Grade student'},
10166:                                        {href=>'',text=>'Store grades'}],1,1);
10167: 	    &updateGradeByPage($request,$symb);
10168: 	} elsif ($command eq 'processGroup' && $perm{'vgr'}) {
10169:             &startpage($request,$symb,[{href=>'',text=>'...'},
10170:                                        {href=>'',text=>'Modify grades'}]);
10171: 	    &processGroup($request,$symb);
10172: 	} elsif ($command eq 'gradingmenu' && $perm{'vgr'}) {
10173:             &startpage($request,$symb);
10174: 	    $request->print(&grading_menu($request,$symb));
10175: 	} elsif ($command eq 'individual' && $perm{'vgr'}) {
10176:             &startpage($request,$symb,[{href=>'',text=>'Select individual students to grade'}]);
10177: 	    $request->print(&submit_options($request,$symb));
10178:         } elsif ($command eq 'ungraded' && $perm{'vgr'}) {
10179:             &startpage($request,$symb,[{href=>'',text=>'Grade ungraded submissions'}]);
10180:             $request->print(&listStudents($request,$symb,'graded'));
10181:         } elsif ($command eq 'table' && $perm{'vgr'}) {
10182:             &startpage($request,$symb,[{href=>"", text=>"Grading table"}]);
10183:             $request->print(&submit_options_table($request,$symb));
10184:         } elsif ($command eq 'all_for_one' && $perm{'vgr'}) {
10185:             &startpage($request,$symb,[{href=>'',text=>'Grade page/folder for one student'}],1,1);
10186:             $request->print(&submit_options_sequence($request,$symb));
10187: 	} elsif ($command eq 'viewgrades' && $perm{'vgr'}) {
10188:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},{href=>'', text=>"Modify grades"}]);
10189: 	    $request->print(&viewgrades($request,$symb));
10190: 	} elsif ($command eq 'handgrade' && $perm{'mgr'}) {
10191:             &startpage($request,$symb,[{href=>'',text=>'...'},
10192:                                        {href=>'',text=>'Store grades'}]);
10193: 	    $request->print(&processHandGrade($request,$symb));
10194: 	} elsif ($command eq 'editgrades' && $perm{'mgr'}) {
10195:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"table"), text=>"Grading table"},
10196:                                        {href=>&href_symb_cmd($symb,'viewgrades').'&group=all&section=all&Status=Active',
10197:                                                                              text=>"Modify grades"},
10198:                                        {href=>'', text=>"Store grades"}]);
10199: 	    $request->print(&editgrades($request,$symb));
10200:         } elsif ($command eq 'initialverifyreceipt' && $perm{'vgr'}) {
10201:             &startpage($request,$symb,[{href=>'',text=>'Verify Receipt Number'}]);
10202:             $request->print(&initialverifyreceipt($request,$symb));
10203: 	} elsif ($command eq 'verify' && $perm{'vgr'}) {
10204:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,"initialverifyreceipt"),text=>'Verify Receipt Number'},
10205:                                        {href=>'',text=>'Verification Result'}]);
10206: 	    $request->print(&verifyreceipt($request,$symb));
10207:         } elsif ($command eq 'processclicker' && $perm{'mgr'}) {
10208:             &startpage($request,$symb,[{href=>'', text=>'Process clicker'}]);
10209:             $request->print(&process_clicker($request,$symb));
10210:         } elsif ($command eq 'processclickerfile' && $perm{'mgr'}) {
10211:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
10212:                                        {href=>'', text=>'Process clicker file'}]);
10213:             $request->print(&process_clicker_file($request,$symb));
10214:         } elsif ($command eq 'assignclickergrades' && $perm{'mgr'}) {
10215:             &startpage($request,$symb,[{href=>&href_symb_cmd($symb,'processclicker'), text=>'Process clicker'},
10216:                                        {href=>'', text=>'Process clicker file'},
10217:                                        {href=>'', text=>'Store grades'}]);
10218:             $request->print(&assign_clicker_grades($request,$symb));
10219: 	} elsif ($command eq 'csvform' && $perm{'mgr'}) {
10220:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10221: 	    $request->print(&upcsvScores_form($request,$symb));
10222: 	} elsif ($command eq 'csvupload' && $perm{'mgr'}) {
10223:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10224: 	    $request->print(&csvupload($request,$symb));
10225: 	} elsif ($command eq 'csvuploadmap' && $perm{'mgr'} ) {
10226:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10227: 	    $request->print(&csvuploadmap($request,$symb));
10228: 	} elsif ($command eq 'csvuploadoptions' && $perm{'mgr'}) {
10229: 	    if ($env{'form.associate'} ne 'Reverse Association') {
10230:                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10231: 		$request->print(&csvuploadoptions($request,$symb));
10232: 	    } else {
10233: 		if ( $env{'form.upfile_associate'} ne 'reverse' ) {
10234: 		    $env{'form.upfile_associate'} = 'reverse';
10235: 		} else {
10236: 		    $env{'form.upfile_associate'} = 'forward';
10237: 		}
10238:                 &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10239: 		$request->print(&csvuploadmap($request,$symb));
10240: 	    }
10241: 	} elsif ($command eq 'csvuploadassign' && $perm{'mgr'} ) {
10242:             &startpage($request,$symb,[{href=>'', text=>'Upload Scores'}],1,1);
10243: 	    $request->print(&csvuploadassign($request,$symb));
10244: 	} elsif ($command eq 'scantron_selectphase' && $perm{'mgr'}) {
10245:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10246: 	    $request->print(&scantron_selectphase($request,undef,$symb));
10247:  	} elsif ($command eq 'scantron_warning' && $perm{'mgr'}) {
10248:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10249:  	    $request->print(&scantron_do_warning($request,$symb));
10250: 	} elsif ($command eq 'scantron_validate' && $perm{'mgr'}) {
10251:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10252: 	    $request->print(&scantron_validate_file($request,$symb));
10253: 	} elsif ($command eq 'scantron_process' && $perm{'mgr'}) {
10254:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10255: 	    $request->print(&scantron_process_students($request,$symb));
10256:  	} elsif ($command eq 'scantronupload' && 
10257:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10258: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10259:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10260:  	    $request->print(&scantron_upload_scantron_data($request,$symb)); 
10261:  	} elsif ($command eq 'scantronupload_save' &&
10262:  		 (&Apache::lonnet::allowed('usc',$env{'request.role.domain'})||
10263: 		  &Apache::lonnet::allowed('usc',$env{'request.course.id'}))) {
10264:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10265:  	    $request->print(&scantron_upload_scantron_data_save($request,$symb));
10266:  	} elsif ($command eq 'scantron_download' &&
10267: 		 &Apache::lonnet::allowed('usc',$env{'request.course.id'})) {
10268:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10269:  	    $request->print(&scantron_download_scantron_data($request,$symb));
10270:         } elsif ($command eq 'checksubmissions' && $perm{'vgr'}) {
10271:             &startpage($request,$symb,[{href=>'', text=>'Grade/Manage/Review Bubblesheets'}],1,1);
10272:             $request->print(&checkscantron_results($request,$symb));
10273:         } elsif ($command eq 'downloadfilesselect' && $perm{'vgr'}) {
10274:             &startpage($request,$symb,[{href=>'', text=>'Select which submissions to download'}]);
10275:             $request->print(&submit_options_download($request,$symb));
10276:          } elsif ($command eq 'downloadfileslink' && $perm{'vgr'}) {
10277:             &startpage($request,$symb,
10278:    [{href=>&href_symb_cmd($symb,'downloadfilesselect'), text=>'Select which submissions to download'},
10279:     {href=>'', text=>'Download submissions'}]);
10280:             &submit_download_link($request,$symb);
10281: 	} elsif ($command) {
10282:             &startpage($request,$symb,[{href=>'', text=>'Access denied'}]);
10283: 	    $request->print('<p class="LC_error">'.&mt('Access Denied ([_1])',$command).'</p>');
10284: 	}
10285:     }
10286:     if ($ssi_error) {
10287: 	&ssi_print_error($request);
10288:     }
10289:     if ($env{'form.inhibitmenu'}) {
10290:         $request->print(&Apache::loncommon::end_page());
10291:     } else {
10292:         &Apache::lonquickgrades::endGradeScreen($request);
10293:     }
10294:     &reset_caches();
10295:     return OK;
10296: }
10297: 
10298: 1;
10299: 
10300: __END__;
10301: 
10302: 
10303: =head1 NAME
10304: 
10305: Apache::grades
10306: 
10307: =head1 SYNOPSIS
10308: 
10309: Handles the viewing of grades.
10310: 
10311: This is part of the LearningOnline Network with CAPA project
10312: described at http://www.lon-capa.org.
10313: 
10314: =head1 OVERVIEW
10315: 
10316: Do an ssi with retries:
10317: While I'd love to factor out this with the vesrion in lonprintout,
10318: 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
10319: I'm not quite ready to invent (e.g. an ssi_with_retry object).
10320: 
10321: At least the logic that drives this has been pulled out into loncommon.
10322: 
10323: 
10324: 
10325: ssi_with_retries - Does the server side include of a resource.
10326:                      if the ssi call returns an error we'll retry it up to
10327:                      the number of times requested by the caller.
10328:                      If we still have a proble, no text is appended to the
10329:                      output and we set some global variables.
10330:                      to indicate to the caller an SSI error occurred.  
10331:                      All of this is supposed to deal with the issues described
10332:                      in LonCAPA BZ 5631 see:
10333:                      http://bugs.lon-capa.org/show_bug.cgi?id=5631
10334:                      by informing the user that this happened.
10335: 
10336: Parameters:
10337:   resource   - The resource to include.  This is passed directly, without
10338:                interpretation to lonnet::ssi.
10339:   form       - The form hash parameters that guide the interpretation of the resource
10340:                
10341:   retries    - Number of retries allowed before giving up completely.
10342: Returns:
10343:   On success, returns the rendered resource identified by the resource parameter.
10344: Side Effects:
10345:   The following global variables can be set:
10346:    ssi_error                - If an unrecoverable error occurred this becomes true.
10347:                               It is up to the caller to initialize this to false
10348:                               if desired.
10349:    ssi_error_resource  - If an unrecoverable error occurred, this is the value
10350:                               of the resource that could not be rendered by the ssi
10351:                               call.
10352:    ssi_error_message   - The error string fetched from the ssi response
10353:                               in the event of an error.
10354: 
10355: 
10356: =head1 HANDLER SUBROUTINE
10357: 
10358: ssi_with_retries()
10359: 
10360: =head1 SUBROUTINES
10361: 
10362: =over
10363: 
10364: =head1 Routines to display previous version of a Task for a specific student
10365: 
10366: Tasks are graded pass/fail. Students who have yet to pass a particular Task
10367: can receive another opportunity. Access to tasks is slot-based. If a slot
10368: requires a proctor to check-in the student, a new version of the Task will
10369: be created when the student is checked in to the new opportunity.
10370: 
10371: If a particular student has tried two or more versions of a particular task,
10372: the submission screen provides a user with vgr privileges (e.g., a Course
10373: Coordinator) the ability to display a previous version worked on by the
10374: student.  By default, the current version is displayed. If a previous version
10375: has been selected for display, submission data are only shown that pertain
10376: to that particular version, and the interface to submit grades is not shown.
10377: 
10378: =over 4
10379: 
10380: =item show_previous_task_version()
10381: 
10382: Displays a specified version of a student's Task, as the student sees it.
10383: 
10384: Inputs: 2
10385:         request - request object
10386:         symb    - unique symb for current instance of resource
10387: 
10388: Output: None.
10389: 
10390: Side Effects: calls &show_problem() to print version of Task, with
10391:               version contained in form item: $env{'form.previousversion'}
10392: 
10393: =item choose_task_version_form()
10394: 
10395: Displays a web form used to select which version of a student's view of a
10396: Task should be displayed.  Either launches a pop-up window, or replaces
10397: content in existing pop-up, or replaces page in main window.
10398: 
10399: Inputs: 4
10400:         symb    - unique symb for current instance of resource
10401:         uname   - username of student
10402:         udom    - domain of student
10403:         nomenu  - 1 if display is in a pop-up window, and hence no menu
10404:                   breadcrumbs etc., are displayed
10405: 
10406: Output: 4
10407:         current   - student's current version
10408:         displayed - student's version being displayed
10409:         result    - scalar containing HTML for web form used to switch to
10410:                     a different version (or a link to close window, if pop-up).
10411:         js        - javascript for processing selection in versions web form
10412: 
10413: Side Effects: None.
10414: 
10415: =item previous_display_javascript()
10416: 
10417: Inputs: 2
10418:         nomenu  - 1 if display is in a pop-up window, and hence no menu
10419:                   breadcrumbs etc., are displayed.
10420:         current - student's current version number.
10421: 
10422: Output: 1
10423:         js      - javascript for processing selection in versions web form.
10424: 
10425: Side Effects: None.
10426: 
10427: =back
10428: 
10429: =head1 Routines to process bubblesheet data.
10430: 
10431: =over 4
10432: 
10433: =item scantron_get_correction() : 
10434: 
10435:    Builds the interface screen to interact with the operator to fix a
10436:    specific error condition in a specific scanline
10437: 
10438:  Arguments:
10439:     $r           - Apache request object
10440:     $i           - number of the current scanline
10441:     $scan_record - hash ref as returned from &scantron_parse_scanline()
10442:     $scan_config - hash ref as returned from &get_scantron_config()
10443:     $line        - full contents of the current scanline
10444:     $error       - error condition, valid values are
10445:                    'incorrectCODE', 'duplicateCODE',
10446:                    'doublebubble', 'missingbubble',
10447:                    'duplicateID', 'incorrectID'
10448:     $arg         - extra information needed
10449:        For errors:
10450:          - duplicateID   - paper number that this studentID was seen before on
10451:          - duplicateCODE - array ref of the paper numbers this CODE was
10452:                            seen on before
10453:          - incorrectCODE - current incorrect CODE 
10454:          - doublebubble  - array ref of the bubble lines that have double
10455:                            bubble errors
10456:          - missingbubble - array ref of the bubble lines that have missing
10457:                            bubble errors
10458: 
10459:    $randomorder - True if exam folder has randomorder set
10460:    $randompick  - True if exam folder has randompick set
10461:    $respnumlookup - Reference to HASH mapping question numbers in bubble lines
10462:                      for current line to question number used for same question
10463:                      in "Master Seqence" (as seen by Course Coordinator).
10464:    $startline   - Reference to hash where key is question number (0 is first)
10465:                   and value is number of first bubble line for current student
10466:                   or code-based randompick and/or randomorder.
10467: 
10468: 
10469: 
10470: =item  scantron_get_maxbubble() : 
10471: 
10472:    Arguments:
10473:        $nav_error  - Reference to scalar which is a flag to indicate a
10474:                       failure to retrieve a navmap object.
10475:        if $nav_error is set to 1 by scantron_get_maxbubble(), the 
10476:        calling routine should trap the error condition and display the warning
10477:        found in &navmap_errormsg().
10478: 
10479:        $scantron_config - Reference to bubblesheet format configuration hash.
10480: 
10481:    Returns the maximum number of bubble lines that are expected to
10482:    occur. Does this by walking the selected sequence rendering the
10483:    resource and then checking &Apache::lonxml::get_problem_counter()
10484:    for what the current value of the problem counter is.
10485: 
10486:    Caches the results to $env{'form.scantron_maxbubble'},
10487:    $env{'form.scantron.bubble_lines.n'}, 
10488:    $env{'form.scantron.first_bubble_line.n'} and
10489:    $env{"form.scantron.sub_bubblelines.n"}
10490:    which are the total number of bubble lines, the number of bubble
10491:    lines for response n and number of the first bubble line for response n,
10492:    and a comma separated list of numbers of bubble lines for sub-questions
10493:    (for optionresponse, matchresponse, and rankresponse items), for response n.  
10494: 
10495: 
10496: =item  scantron_validate_missingbubbles() : 
10497: 
10498:    Validates all scanlines in the selected file to not have any
10499:     answers that don't have bubbles that have not been verified
10500:     to be bubble free.
10501: 
10502: =item  scantron_process_students() : 
10503: 
10504:    Routine that does the actual grading of the bubblesheet information.
10505: 
10506:    The parsed scanline hash is added to %env 
10507: 
10508:    Then foreach unskipped scanline it does an &Apache::lonnet::ssi()
10509:    foreach resource , with the form data of
10510: 
10511: 	'submitted'     =>'scantron' 
10512: 	'grade_target'  =>'grade',
10513: 	'grade_username'=> username of student
10514: 	'grade_domain'  => domain of student
10515: 	'grade_courseid'=> of course
10516: 	'grade_symb'    => symb of resource to grade
10517: 
10518:     This triggers a grading pass. The problem grading code takes care
10519:     of converting the bubbled letter information (now in %env) into a
10520:     valid submission.
10521: 
10522: =item  scantron_upload_scantron_data() :
10523: 
10524:     Creates the screen for adding a new bubblesheet data file to a course.
10525: 
10526: =item  scantron_upload_scantron_data_save() : 
10527: 
10528:    Adds a provided bubble information data file to the course if user
10529:    has the correct privileges to do so. 
10530: 
10531: =item  valid_file() :
10532: 
10533:    Validates that the requested bubble data file exists in the course.
10534: 
10535: =item  scantron_download_scantron_data() : 
10536: 
10537:    Shows a list of the three internal files (original, corrected,
10538:    skipped) for a specific bubblesheet data file that exists in the
10539:    course.
10540: 
10541: =item  scantron_validate_ID() : 
10542: 
10543:    Validates all scanlines in the selected file to not have any
10544:    invalid or underspecified student/employee IDs
10545: 
10546: =item navmap_errormsg() :
10547: 
10548:    Returns HTML mark-up inside a <div></div> with a link to re-initialize the course.
10549:    Should be called whenever the request to instantiate a navmap object fails.
10550: 
10551: =back
10552: 
10553: =back
10554: 
10555: =cut

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