Annotation of loncom/homework/bridgetask.pm, revision 1.103

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.103   ! albertel    4: # $Id: bridgetask.pm,v 1.102 2006/02/08 22:04:34 albertel Exp $
1.1       albertel    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::bridgetask; 
                     32: 
                     33: use strict;
                     34: use Apache::lonnet;
                     35: use Apache::File();
                     36: use Apache::lonmenu;
                     37: use Apache::lonlocal;
                     38: use Apache::lonxml;
1.37      albertel   39: use Apache::slotrequest();
1.1       albertel   40: use Time::HiRes qw( gettimeofday tv_interval );
1.9       albertel   41: 
1.1       albertel   42: BEGIN {
                     43:     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
                     44: }
                     45: 
1.9       albertel   46: sub initialize_bridgetask {
                     47:     # id of current Dimension, 0 means that no dimension is current 
                     48:     # (inside <Task> only)
                     49:     $Apache::bridgetask::dimension='';
                     50:     # list of all Dimension ids seen
                     51:     @Apache::bridgetask::dimensionlist=();
1.20      albertel   52:     # mandatory attribute of all Dimensions seen
                     53:     %Apache::bridgetask::dimensionmandatory=();
1.9       albertel   54:     # list of all current Instance ids
                     55:     @Apache::bridgetask::instance=();
                     56:     # list of all Instance ids seen in this problem
                     57:     @Apache::bridgetask::instancelist=();
1.15      albertel   58:     # key of queud user data that we are currently grading
                     59:     $Apache::bridgetask::queue_key='';
1.9       albertel   60: }
                     61: 
1.4       albertel   62: sub proctor_check_auth {
1.81      albertel   63:     my ($slot_name,$slot,$type)=@_;
1.11      albertel   64:     my $user=$env{'form.proctorname'};
                     65:     my $domain=$env{'form.proctordomain'};
1.4       albertel   66:     
                     67:     my @allowed=split(",",$slot->{'proctor'});
                     68:     foreach my $possible (@allowed) {
                     69: 	my ($puser,$pdom)=(split('@',$possible));
                     70: 	if ($puser eq $user && $pdom eq $domain) {
1.72      albertel   71: 	    my $authenticated=0;
                     72: 	    if ( $slot->{'secret'} =~ /\S/ &&
                     73: 		 $env{'form.proctorpassword'} eq $slot->{'secret'} ) {
                     74: 		$authenticated=1;
                     75: 	    } else {
                     76: 		
                     77: 		my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
                     78: 		if ($authhost ne 'no_host') {
                     79: 		    $authenticated=1;
                     80: 		}
                     81: 	    }
1.81      albertel   82: 	    if ($authenticated && $type eq 'Task') {
1.93      albertel   83: 		# increment version
1.23      albertel   84: 		my $version=
1.90      albertel   85: 		    $Apache::lonhomework::history{'resource.0.version'};
                     86: 		$version++;
1.93      albertel   87: 
                     88: 		#clean out all current results
                     89: 		foreach my $key (keys(%Apache::lonhomework::history)) {
                     90: 		    if ($key=~/^resource\.0\./) {
                     91: 			$Apache::lonhomework::results{$key}='';
                     92: 		    }
                     93: 		}
                     94: 		
                     95: 		#setup new version and who did it
1.90      albertel   96: 		$Apache::lonhomework::results{'resource.0.version'}=$version;
1.89      albertel   97: 		$Apache::lonhomework::results{"resource.$version.0.checkedin"}=
1.4       albertel   98: 		    $user.'@'.$domain;
1.89      albertel   99: 		$Apache::lonhomework::results{"resource.$version.0.checkedin.slot"}=
1.22      albertel  100: 		    $slot_name;
1.93      albertel  101: 
1.4       albertel  102: 		return 1;
1.81      albertel  103: 	    } elsif ($authenticated && $type eq 'problem') {
1.90      albertel  104: 		&Apache::lonxml::debug("authed $slot_name");
1.81      albertel  105: 		$Apache::lonhomework::results{"resource.0.checkedin"}=
                    106: 		    $user.'@'.$domain;
                    107: 		$Apache::lonhomework::results{"resource.0.checkedin.slot"}=
                    108: 		    $slot_name;
1.4       albertel  109: 	    }
                    110: 	}
                    111:     }
                    112:     return 0;
                    113: }
                    114: 
1.25      albertel  115: sub get_version {
1.29      albertel  116:     my ($version,$previous);
1.25      albertel  117:     if ($env{'form.previousversion'} && 
1.36      albertel  118: 	$env{'form.previousversion'} ne 'current' &&
1.89      albertel  119: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
1.29      albertel  120: 	$version=$env{'form.previousversion'};
                    121: 	$previous=1;
                    122:     } else {
1.89      albertel  123: 	$version=$Apache::lonhomework::history{'resource.0.version'};
1.29      albertel  124: 	$previous=0;
                    125:     }
                    126:     if (wantarray) {
                    127: 	return ($version,$previous);
1.25      albertel  128:     }
1.29      albertel  129:     return $version;
1.25      albertel  130: }
                    131: 
1.8       albertel  132: sub add_previous_version_button {
1.25      albertel  133:     my ($status)=@_;
1.8       albertel  134:     my $result;
1.89      albertel  135:     if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
1.25      albertel  136: 	return '';
                    137:     }
1.89      albertel  138:     if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
1.29      albertel  139: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  140: 	return '';
                    141:     }
1.29      albertel  142:     my $version=&get_version();
                    143:     if ($env{'form.previousversion'} ne '' &&
                    144: 	$env{'form.previousversion'} eq $version) {
                    145: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
                    146: 	    "</h3>\n";
                    147:     }
                    148:     my @to_show;
1.89      albertel  149:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.0.version'}) {
                    150: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.0.status'})) {
1.29      albertel  151: 	    push(@to_show,$test_version);
                    152: 	}
                    153:     }
                    154:     my $list='<option>'.
                    155: 	join("</option>\n<option>",@to_show).
                    156: 	     "</option>\n";
1.36      albertel  157:     $list.='<option value="current">'.&mt('Current').'</option>';
1.29      albertel  158:     $result.='<form name="getprevious" method="POST" action="';
                    159:     my $uri=$env{'request.uri'};
                    160:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    161:     $result.=$uri.'">'.
                    162: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
                    163: <option>'.&mt('Pick one').'</option>
                    164: '.$list.'
                    165: </select>')."</form>";
1.8       albertel  166:     return $result;
                    167: }
                    168: 
1.13      albertel  169: sub add_grading_button {
1.59      albertel  170:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    171:     my $cnum=$env{'course.'.$cid.'.num'};
                    172:     my $cdom=$env{'course.'.$cid.'.domain'};
                    173:     my %sections;
                    174:     my $numsections=&Apache::loncommon::get_sections($cdom,$cnum,\%sections);
                    175:     my $size=5;
                    176:     if (scalar(keys(%sections)) < 3) {
                    177: 	$size=scalar(keys(%sections))+2;
                    178:     }
                    179:     my $sec_select = '<select multiple name="chosensections" size="'.$size.'">'."\n";
                    180:     $sec_select .= "<option value='all' selected='selected'>all</option>\n";
                    181:     foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
                    182: 	$sec_select .= "<option name=\"$sec\">$sec</option>\n";
                    183:     }
                    184:     $sec_select .= "<option value='none'>none</option></select>\n";
                    185:     
1.29      albertel  186:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  187: 	&mt("Get a submission to grade").'" />';
                    188:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.40      albertel  189:     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.34      albertel  190: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
1.59      albertel  191: 	$result.='<p>Specify a section: '.$sec_select.'</p>';
1.34      albertel  192: 	$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
                    193: 
                    194: 	$result.=' <input type="submit" name="reviewagrading" value="'.
                    195: 	    &mt("Select an entry from the grading queue").'" /> </p>'."\n";
                    196: 
                    197: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
                    198: 	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
1.32      albertel  199: 	$result.=' <input type="submit" name="reviewasubmission" value="'.
1.34      albertel  200: 	    &mt("Select an entry from the review queue").'" /> </p>'."\n";
1.49      albertel  201: 	$result.=' <input type="submit" name="regradeasubmission" value="'.
                    202: 	    &mt("Select a user to regrade.").'" /> </p>'."\n";
1.32      albertel  203:     }
1.13      albertel  204:     return $result;
                    205: }
                    206: 
1.22      albertel  207: sub add_request_another_attempt_button {
1.38      albertel  208:     my ($text)=@_;
                    209:     if (!$text) { $text="Request another attempt"; }
1.25      albertel  210:     my $result;
1.36      albertel  211:     my $symb=&Apache::lonnet::symbread();
1.37      albertel  212:     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
1.38      albertel  213:     my $action='get_reservation';
1.37      albertel  214:     if ($slot_name) {
1.38      albertel  215: 	$text="Change reservation.";
                    216: 	$action='change_reservation';
1.37      albertel  217: 	my $description=&Apache::slotrequest::get_description($slot_name,
                    218: 							      $slot);
                    219: 	$result.=(<<STUFF);
                    220: <p> Will be next available: $description </p>
                    221: STUFF
                    222:     }
1.38      albertel  223:     
                    224:     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
                    225:     $symb=&Apache::lonnet::escape($symb);
                    226:     $result.='<form method="POST" action="/adm/slotrequest">'.
                    227: 	'<input type="hidden" name="symb" value="'.$symb.'" />'.
                    228: 	'<input type="hidden" name="command" value="'.$action.'" />'.
                    229: 	'<input type="submit" name="requestattempt" value="'.
                    230: 	&mt($text).'" />'.
                    231: 	'</form>';
1.25      albertel  232:     return $result;
1.22      albertel  233: }
                    234: 
1.30      albertel  235: sub preserve_grade_info {
                    236:     my $result;
                    237:     # if we are viewing someone else preserve that info
                    238:     if (defined $env{'form.grade_symb'}) {
                    239: 	foreach my $field ('symb','courseid','domain','username') {
                    240: 	    $result .= '<input type="hidden" name="grade_'.$field.
                    241: 		'" value="'.$env{"form.grade_$field"}.'" />'."\n";
                    242: 	}
                    243:     }
                    244:     return $result;
                    245: }
                    246: 
1.53      albertel  247: sub style {
                    248:     return (<<STYLE);
                    249: <style type="text/css">
                    250: .fail, .pass, .neutral {
                    251:     position: relative;
                    252:     margin : 5px;
                    253:     margin-bottom :10px;
                    254:     padding : 4px;
                    255:     padding-left : 75px;
                    256: 	border : thin solid;
                    257:     font-weight : bolder;
                    258:     font-size: smaller;
                    259:     font-family: Arial;
                    260:     background-color : rgb(255,240,225);
                    261: }
                    262: 
                    263: .fail h4, .pass h4 {
                    264: 	position:absolute;
                    265: 	left: -4px;
                    266: 	top: -8px;
                    267: 	padding:2px;
                    268: 	margin:0;
                    269: 	background-color : rgb(255,240,225);
                    270: 	border : thin solid;
                    271: }
                    272: 
                    273: .fail {
                    274: 	color: red;
                    275: }
                    276: 
                    277: .pass {
                    278:     color : green;
                    279: }
                    280: 
                    281: .neutral {
                    282: 	color : blue;
                    283: }
                    284: 
                    285: .question {
                    286: 	border : thin solid black;
                    287: 	padding : 4px;
                    288: 	margin-bottom : 1em;
                    289: }
                    290: 
                    291: .grade {
                    292: 	font-size: x-large;
                    293: 	font-family: Arial;
                    294: 	position:absolute;
                    295: 	left: 5px;
                    296: 	top: -5px;
                    297: 	width: 70px;
                    298: }
                    299: 
                    300: div#feedback h1 {
                    301:     color : inherit;
                    302: }
                    303: </style>
                    304: STYLE
                    305: 
                    306: }
                    307: 
1.54      albertel  308: sub show_task {
                    309:     my ($status,$previous)=@_;
                    310:     if (!$previous && (
                    311: 		       ( $status eq 'CLOSED' ) ||
                    312: 		       ( $status eq 'BANNED') ||
                    313: 		       ( $status eq 'UNAVAILABLE') ||
                    314: 		       ( $status eq 'NOT_IN_A_SLOT') ||
                    315: 		       ( $status eq 'NEEDS_CHECKIN') ||
                    316: 		       ( $status eq 'WAITING_FOR_GRADE') ||
                    317: 		       ( $status eq 'INVALID_ACCESS') )) {
                    318: 	return 0;
                    319:     }
1.64      albertel  320:     if ($env{'form.donescreen'}) { return 0; }
1.54      albertel  321:     return 1;
                    322: }
                    323: 
                    324: sub internal_location {
                    325:     my ($id)=@_;
                    326:     return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
                    327: }
                    328: 
1.60      albertel  329: sub submission_time_stamp {
                    330:     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    331:     my $submissiontime;
1.89      albertel  332:     my $version=$Apache::lonhomework::history{'resource.0.version'};
1.60      albertel  333:     for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
                    334: 	if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})) {
                    335: 	    $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
                    336: 	}
                    337:     }
                    338:     my $result;
                    339:     if ($submissiontime) {
1.89      albertel  340: 	my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.0.checkedin.slot'};
1.60      albertel  341: 	my %slot=&Apache::lonnet::get_slot($slot_name);
                    342: 	my $diff = $slot{'endtime'} - $submissiontime;
1.71      albertel  343: 	my ($color,$when)=('#FF6666','after');
                    344: 	if ($diff > 0) { ($color,$when)=('#336600','before'); }
1.60      albertel  345: 	my $info;
                    346: 	if ($diff%60) { $info=($diff%60).' seconds'; }
                    347: 	$diff=int($diff/60);
                    348: 	if ($diff%60) { $info=($diff%60).' minutes '.$info; }
                    349: 	$diff=int($diff/60);
                    350: 	if ($diff) {    $info=$diff.' hours '.$info; }
                    351: 	$result='<p><font color="'.$color.'">'.
                    352: 	    &mt('Student submitted [_1] [_2] the deadline. 
                    353:                  (Submission was at [_3], end of period was [_4].)',
                    354: 		$info,$when,scalar(localtime($submissiontime)),
                    355: 		scalar(localtime($slot{'endtime'}))).
                    356: 		'</font></p>';
                    357:     }
                    358:     return $result;
                    359: }
                    360: 
1.70      albertel  361: sub webgrade_standard_info {
                    362:     my ($version)=&get_version();
                    363:     my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                    364:     my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
                    365:     my $file_list="<ul>\n";
                    366:     foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
                    367: 	my $file=$file_url.$partial_file;
                    368: 	$file=~s|/+|/|g;
                    369: 	&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1.73      albertel  370: 	$file_list.='<li><nobr><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
1.70      albertel  371: 	    &Apache::loncommon::icon($file).'" border=0"> '.$file.
                    372: 	    '</a></nobr></li>'."\n";
                    373:     }
                    374:     $file_list.="</ul>\n";
                    375: 
                    376:     my %lt=&Apache::lonlocal::texthash('done' => 'Done',
                    377: 				       'stop' => 'Stop',
                    378: 				       );
                    379: 				       
                    380:     my $result=<<INFO;
                    381: <div class="handininfo">
                    382:   <input type="submit" name="next" value="$lt{'done'}" />
                    383:   <input type="submit" name="stop" value="$lt{'stop'}" />
                    384:   $file_list
                    385: </div>
                    386: INFO
                    387:     return $result;
                    388: }
                    389: 
1.1       albertel  390: sub start_Task {
1.87      albertel  391:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel  392: 
1.4       albertel  393:     my ($status,$accessmsg,$slot);
1.16      albertel  394:     if ($target ne 'webgrade') {
1.70      albertel  395: 	&Apache::structuretags::init_problem_globals('Task');
1.16      albertel  396: 	&Apache::structuretags::initialize_storage();
                    397: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.74      albertel  398: 	if ($env{'request.state'} eq 'construct') {
                    399: 	    &Apache::structuretags::setup_rndseed($safeeval);
                    400: 	}
1.16      albertel  401:     } 
                    402: 
1.4       albertel  403:     $Apache::lonhomework::parsing_a_task=1;
1.1       albertel  404:     #should get back a <html> or the neccesary stuff to start XML/MathML
                    405:     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
                    406: 	&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.16      albertel  407:     
1.74      albertel  408:     if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.13      albertel  409: 	if ($Apache::lonhomework::modifygrades) {
                    410: 	    $body_tag_start.='<form name="gradesubmission" method="POST" action="';
                    411: 	    my $uri=$env{'request.uri'};
                    412: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    413: 	    $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
1.38      albertel  414: 	    my $symb=&Apache::lonnet::symbread();
1.40      albertel  415: 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
                    416: 		$body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
                    417: 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
                    418: 		    '<input type="hidden" name="command" value="showslots" />'.
                    419: 		    '<input type="submit" name="requestattempt" value="'.
                    420: 		    &mt('Show Slot list').'" />'.
                    421: 		    '</form>';
                    422: 	    }
1.13      albertel  423: 	}
1.8       albertel  424:     }
1.74      albertel  425:     if ($target eq 'web' && $env{'request.state'} eq 'construct') {
                    426: 	$form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
                    427:     }
1.21      albertel  428:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  429: 	$target eq 'tex') {
1.29      albertel  430: 	my ($version,$previous)=&get_version();
1.14      albertel  431: 	($status,$accessmsg,my $slot_name,$slot) = 
1.81      albertel  432: 	    &Apache::lonhomework::check_slot_access('0','Task');
1.9       albertel  433: 	push(@Apache::inputtags::status,$status);
1.14      albertel  434: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  435: 	my $expression='$external::datestatus="'.$status.'";';
1.89      albertel  436: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.0.solved"}.'";';
1.1       albertel  437: 	&Apache::run::run($expression,$safeeval);
                    438: 	&Apache::lonxml::debug("Got $status");
1.25      albertel  439: 	$body_tag_start.=&add_previous_version_button($status);
1.54      albertel  440: 	if (!&show_task($status,$previous)) {
1.87      albertel  441: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.1       albertel  442: 	    if ( $target eq "web" ) {
1.4       albertel  443: 		$result.= $head_tag_start.'</head>'.$body_tag_start;
1.74      albertel  444: 		if ($env{'request.state'} eq 'construct') {
                    445: 		    $result.=$form_tag_start;
                    446: 		}
1.4       albertel  447: 		my $msg;
1.1       albertel  448: 		if ($status eq 'UNAVAILABLE') {
                    449: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  450: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    451: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38      albertel  452: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  453: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    454: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    455: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  456: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    457: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.64      albertel  458: 		} elsif ($env{'form.donescreen'}) {
                    459: 		    my $title=&Apache::lonnet::gettitle();
1.67      albertel  460: 		    my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
                    461: 		    my $files='<ul><li>'.join('</li><li>',@files).'</li></ul>';
1.64      albertel  462: 		    $result.=<<DONESCREEN;
                    463: <h2>$title</h2>
                    464: <p> Files submitted: $files </p>
1.67      albertel  465: <p> You are now done with this Bridge Task </p>
1.64      albertel  466: <hr />
                    467: <p> <a href="/adm/logout">Logout</a> </p>
                    468: <p> <a href="/adm/roles">Change to a different course</a> </p>
                    469: DONESCREEN
1.1       albertel  470: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    471: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    472: 		}
                    473: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    474: 		    $msg.='The problem '.$accessmsg;
                    475: 		}
                    476: 		$result.=$msg.'<br />';
                    477: 	    } elsif ($target eq 'tex') {
                    478: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    479: 		if ($status eq 'UNAVAILABLE') {
                    480: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    481: 		} else {
                    482: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    483: 		}
1.22      albertel  484: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  485: 		if ($status eq 'NEEDS_CHECKIN') {
1.83      albertel  486: 		    if(&proctor_check_auth($slot_name,$slot,'Task')
                    487: 		       && defined($Apache::inputtags::slot_name)) {
1.77      albertel  488: 			my $result=&add_to_queue('gradingqueue',
1.82      albertel  489: 						 [$Apache::inputtags::slot_name]);
1.77      albertel  490: 			&Apache::lonxml::debug("add_to_queue said $result");
                    491: 		    }
1.4       albertel  492: 		}
1.1       albertel  493: 	    }
                    494: 	} elsif ($target eq 'web') {
                    495: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    496: 	    $result.="$head_tag_start<title>$name</title></head>
1.53      albertel  497:               $body_tag_start \n".&style();
1.36      albertel  498: 	    
1.57      albertel  499: 	    $result.=&preserve_grade_info();
                    500: 	    $result.=&internal_location();
1.36      albertel  501: 	    $result.=$form_tag_start.
                    502: 		'<input type="hidden" name="submitted" value="yes" />';
1.54      albertel  503: 	    &Apache::lonxml::startredirection();
1.1       albertel  504: 	}
1.21      albertel  505:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    506: 	      $target eq 'webgrade') {
1.32      albertel  507: 	my $webgrade='yes';
1.21      albertel  508: 	if ($target eq 'webgrade') {
1.32      albertel  509: 	    $result.=$head_tag_start.$body_tag_start;
1.49      albertel  510: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
                    511: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  512: 	}
1.33      albertel  513: 	# FIXME Blast! still need to reorg this, need to reshow the
                    514:         #       queue being reviewed once done with the grade pass...
                    515:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    516:         #       perhaps do a search if there is a key that is mine and if
                    517:         #       there isn't reshow the queue....
                    518: 	my ($todo,$status_code)=&get_key_todo($target);
                    519: 
                    520: 	if ($todo) {
                    521: 	    &setup_env_for_other_user($todo,$safeeval);
                    522: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    523: 	    $result.="\n".'<table><tr><td>Found '.
                    524: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    525: 	    $form_tag_start.=
                    526: 		'<input type="hidden" name="gradingkey" value="'.
                    527: 		&Apache::lonnet::escape($todo).'" />';
                    528: 	    $Apache::bridgetask::queue_key=$todo;
                    529: 	    &Apache::structuretags::initialize_storage();
                    530: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    531: 	    if ($target eq 'webgrade') {
1.49      albertel  532: 		#$result.='<br />After -'.&show_queue($env{'form.queue'});
1.33      albertel  533: 		$result.="\n".'<table width="100%" style="width:100%" border="1">';
                    534: 		if ($status_code eq 'selected') {
                    535: 		    $form_tag_start.=
                    536: 			'<input type="hidden" name="queuemode" value="selected" />';
                    537: 		}
                    538: 	    }
1.15      albertel  539: 	} else {
1.33      albertel  540: 	    if ($target eq 'webgrade') {
                    541: 		$result.="\n";
1.81      albertel  542: 		my $back='<p><a href="/adm/flip?postdata=return:">'.
                    543: 		    &mt('Return to resource').'</a></p>';
1.33      albertel  544: 		if      ($status_code eq 'stop') {
1.81      albertel  545: 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
1.33      albertel  546: 		} elsif ($status_code eq 'lock_failed') {
1.81      albertel  547: 		    $result.='<b>'.&mt("Failed to lock the request record.")
                    548: 			.'</b>'.$back;
1.33      albertel  549: 		} elsif ($status_code eq 'unlock') {
1.81      albertel  550: 		    $result.='<b>'.&mt("Unlocked the requested record.")
                    551: 			.'</b>'.$back;
1.33      albertel  552: 		    $result.=&show_queue($env{'form.queue'},1);
                    553: 		} elsif ($status_code eq 'show_list') {
                    554: 		    $result.=&show_queue($env{'form.queue'},1);
1.49      albertel  555: 		} elsif ($status_code eq 'select_user') {
                    556: 		    $result.=&select_user();
1.95      albertel  557: 		} elsif ($status_code eq 'unable') {
                    558: 		    $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
1.33      albertel  559: 		} else {
1.81      albertel  560: 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
1.32      albertel  561: 		}
1.21      albertel  562: 	    }
1.33      albertel  563: 	    $webgrade='no';
1.87      albertel  564: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.32      albertel  565: 	}
                    566: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
1.61      albertel  567: 	    if ($webgrade eq 'yes') {
                    568: 		$result.=&submission_time_stamp();
                    569: 	    }
1.32      albertel  570: 	    $result.=$form_tag_start;
                    571: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    572: 		$webgrade.'" />';
                    573: 	    $result.='<input type="hidden" name="queue" value="'.
                    574: 		$env{'form.queue'}.'" />';
1.52      albertel  575: 	    if ($env{'form.regrade'}) {
                    576: 		$result.='<input type="hidden" name="regrade" value="'.
                    577: 		    $env{'form.regrade'}.'" />';
                    578: 	    }
1.62      albertel  579: 	    if ($env{'form.chosensections'}) {
                    580: 		my @chosen_sections=
                    581: 		    &Apache::loncommon::get_env_multiple('form.chosensections');
                    582: 		foreach my $sec (@chosen_sections) {
                    583: 		    $result.='<input type="hidden" name="chosensections" 
                    584:                                value="'.$sec.'" />';
                    585: 		}
                    586: 	    }
1.70      albertel  587: 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
1.15      albertel  588: 	}
1.74      albertel  589:     } elsif ($target eq 'edit') {
                    590: 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
                    591: 	    &Apache::structuretags::problem_edit_header();
                    592: 	$Apache::lonxml::warnings_error_header=
                    593: 	    &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
                    594: 	my $temp=&Apache::edit::insertlist($target,$token);
                    595: 	$result.=$temp;
1.1       albertel  596:     } else {
                    597: 	# page_start returned a starting result, delete it if we don't need it
                    598: 	$result = '';
                    599:     }
                    600:     return $result;
                    601: }
                    602: 
1.32      albertel  603: sub get_key_todo {
                    604:     my ($target)=@_;
                    605:     my $todo;
1.33      albertel  606: 
                    607:     if (defined($env{'form.reviewasubmission'})) {
1.54      albertel  608: 	&Apache::lonxml::debug("review a submission....");
1.33      albertel  609: 	$env{'form.queue'}='reviewqueue';
                    610: 	return (undef,'show_list');
                    611:     }
                    612: 
                    613:     if (defined($env{'form.reviewagrading'})) {
                    614: 	&Apache::lonxml::debug("review a grading....");
                    615: 	$env{'form.queue'}='gradingqueue';
                    616: 	return (undef,'show_list');
                    617:     }
                    618: 
1.49      albertel  619:     if (defined($env{'form.regradeasubmission'})) {
                    620: 	&Apache::lonxml::debug("regrade a grading....");
                    621: 	$env{'form.queue'}='none';
                    622: 	return (undef,'select_user');
                    623:     }
                    624: 
1.32      albertel  625:     my $queue=$env{'form.queue'};
1.33      albertel  626: 
1.32      albertel  627:     if (!defined($queue)) {
                    628: 	$env{'form.queue'}=$queue='gradingqueue';
                    629:     }
1.33      albertel  630: 
1.32      albertel  631:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  632: 
1.49      albertel  633:     if ($env{'form.queue'} eq 'none') {
                    634: 	if (defined($env{'form.gradingkey'})) {
                    635: 	    if ($target eq 'webgrade') {
                    636: 		if ($env{'form.stop'}) {
                    637: 		    return (undef,'stop');
                    638: 		} elsif ($env{'form.next'}) {
1.59      albertel  639: 		    return (undef,'select_user');
1.49      albertel  640: 		}
                    641: 	    }
                    642: 	    return ($gradingkey,'selected');
                    643: 	} else {
1.59      albertel  644: 	    return (undef,'select_user');
1.49      albertel  645: 	}
                    646:     }
1.32      albertel  647:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  648: 	&& !defined($env{'form.gradingaction'}) 
                    649: 	&& $env{'form.queuemode'} eq 'selected') {
                    650: 	
                    651: 	my $who=&queue_key_locked($queue,$gradingkey);
                    652: 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    653: 	if ($who eq $me) {
                    654: 	    &Apache::lonxml::debug("Found a key was given to me");
                    655: 	    return ($gradingkey,'selected');
                    656: 	} else {
                    657: 	    return (undef,'show_list');
                    658: 	}
                    659: 
                    660:     }
                    661: 
                    662:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    663: 	if ($env{'form.gradingaction'} eq 'resume') {
                    664: 	    delete($env{'form.gradingaction'});
                    665: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  666: 	    return ($gradingkey);
1.33      albertel  667: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    668: 	    &Apache::lonxml::debug("Unlocking a key ".
                    669: 				     &check_queue_unlock($queue,$gradingkey,1));
                    670: 	    return (undef,'unlock');
                    671: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    672: 	    &Apache::lonxml::debug("Locking a key");
                    673: 	    if (&lock_key($queue,$gradingkey)) {
                    674: 		&Apache::lonxml::debug("Success $queue");
                    675: 		return ($gradingkey);
                    676: 	    }
                    677: 	    &Apache::lonxml::debug("Failed $queue");
                    678: 	    return (undef,'lock_failed');
1.32      albertel  679: 	}
                    680:     }
1.33      albertel  681: 
                    682:     if ($env{'form.queuemode'} ne 'selected') {
                    683: 	# don't get something new from the queue if they hit the stop button
                    684:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    685: 	    && !$env{'form.gradingaction'}) {
                    686: 	    &Apache::lonxml::debug("Getting anew $queue");
                    687: 	    return (&get_from_queue($queue));
                    688: 	} else {
                    689: 	    return (undef,'stop');
                    690: 	}
1.32      albertel  691:     }
1.33      albertel  692:     return (undef,undef)
1.32      albertel  693: }
1.94      albertel  694: 
                    695: sub minimize_storage {
                    696:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    697: 	if ($key =~ /regrader$/) { next; }
                    698: 	if ($Apache::lonhomework::results{$key} eq
                    699: 	    $Apache::lonhomework::history{$key}) {
                    700: 	    delete($Apache::lonhomework::results{$key});
                    701: 	}
                    702:     }
                    703: }
                    704: 
1.1       albertel  705: sub end_Task {
                    706:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    707:     my $result='';
                    708:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  709:     my ($version,$previous)=&get_version();
1.1       albertel  710:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  711: 	$target eq 'tex') {
1.69      albertel  712: 	if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
1.1       albertel  713: 	    if ($target eq 'web') {
1.54      albertel  714: 		if (&show_task($status,$previous)) {
                    715: 		    $result.=&Apache::lonxml::endredirection();
                    716: 		}
1.64      albertel  717: 		if ($status eq 'CAN_ANSWER' && !$previous && 
                    718: 		    !$env{'form.donescreen'}) {
1.15      albertel  719: 		    $result.="\n".'<table border="1">'.
1.28      albertel  720: 			&Apache::inputtags::file_selector("$version.0",
                    721: 							  "bridgetask","*",
1.46      albertel  722: 							  'portfolioonly',
                    723: 							  '
                    724: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    725: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  726: 							  "</table>";
1.77      albertel  727: 		}
1.78      albertel  728: 		if (!$previous && $status ne 'SHOW_ANSWER' &&
                    729: 		    &show_task($status,$previous)) {
1.9       albertel  730: 		    $result.=&Apache::inputtags::gradestatus('0');
1.64      albertel  731: 		    $result.='</form>';
                    732: 		    $result.=<<DONEBUTTON;
                    733: <form method="POST">
                    734:    <input type="hidden" name="donescreen" value="1" />
                    735:    <input type="submit" value="Done" />
                    736: </form>
                    737: DONEBUTTON
1.77      albertel  738:                 }
1.56      albertel  739: 		if (&show_task($status,$previous) &&
1.89      albertel  740: 		    $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
                    741: 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
1.54      albertel  742: 		    my $title=&Apache::lonnet::gettitle();
1.80      albertel  743: 
                    744: 		    my $slot_name=
1.89      albertel  745: 			$Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
1.80      albertel  746: 		    my %slot=&Apache::lonnet::get_slot($slot_name);
1.55      albertel  747: 		    my $start_time=
                    748: 			&Apache::lonlocal::locallocaltime($slot{'starttime'});
1.54      albertel  749: 
1.80      albertel  750: 		    my $status = "\n<div class='$bt_status'>\n";
1.54      albertel  751: 		    
                    752: 		    if ($bt_status eq 'pass')  {
                    753: 			$status.='<h2>You passed the '.$title.' given on '.
1.80      albertel  754: 			    $start_time.'</h2>';
1.54      albertel  755: 		    }
                    756: 		    if ($bt_status eq 'fail')  {
                    757: 			$status.='<h2>You did not pass the '.$title.' given on '.
1.80      albertel  758: 			    $start_time.'</h2>';
1.54      albertel  759: 			if (!$previous) {
                    760: 			    $status.=&add_request_another_attempt_button();
                    761: 			}
                    762: 		    }
                    763: 		    my $man_count=0;
                    764: 		    my $opt_count=0;
                    765: 		    my $opt_passed=0;
                    766: 		    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    767: 			if ($Apache::bridgetask::dimensionmandatory{$dim_id}
                    768: 			    eq 'N') {
                    769: 			    $opt_count++;
1.89      albertel  770: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim_id.status"} eq 'pass') {
1.54      albertel  771: 				$opt_passed++;
                    772: 			    }
                    773: 			} else {
                    774: 			    $man_count++;
                    775: 			}
                    776: 		    }
                    777: 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
                    778: 							 $parstack,$safeeval);
                    779: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
1.99      albertel  780: 		    $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components, of which you passed [_4].',$man_count,$opt_req,$opt_count,$opt_passed)."</p></div>\n";
1.54      albertel  781: 
                    782: 		    my $internal_location=&internal_location();
                    783: 		    $result=~s/\Q$internal_location\E/$status/;
                    784: 		}
1.13      albertel  785: 	    } 
                    786: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  787: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    788: 	    }
                    789: 	}
1.29      albertel  790: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  791: 	    my $award='SUBMITTED';
1.28      albertel  792: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  793: 						    'portfiles',\$award);
1.14      albertel  794: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  795: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    796: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    797: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    798: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    799: 
                    800: 		$Apache::lonhomework::results{"resource.0.award"}=
                    801: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    802: 		    $award;
1.51      albertel  803: 		$Apache::lonhomework::results{"resource.0.submission"}=
                    804: 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
1.64      albertel  805: 	    } else {
                    806: 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
1.77      albertel  807: 		$award = '';
1.10      albertel  808: 	    }
1.4       albertel  809: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    810: 	    &Apache::structuretags::finalize_storage();
1.83      albertel  811: 	    if ($award eq 'SUBMITTED'
                    812: 		&& defined($Apache::inputtags::slot_name)) {
1.82      albertel  813: 		&add_to_queue('gradingqueue',[$Apache::inputtags::slot_name]);
1.14      albertel  814: 	    }
1.79      albertel  815: 	} elsif ($Apache::lonhomework::results{'INTERNAL_store'}) {
                    816: 	    &Apache::structuretags::finalize_storage();
1.1       albertel  817: 	}
1.32      albertel  818: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  819: 	    my $optional_required=
                    820: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    821: 					   $safeeval);
                    822: 	    my $optional_passed=0;
                    823: 	    my $mandatory_failed=0;
                    824: 	    my $ungraded=0;
                    825: 	    my $review=0;   
1.21      albertel  826: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  827: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    828: 		my $status=
1.89      albertel  829: 		    $Apache::lonhomework::results{"resource.$version.0.$dim_id.status"};
1.20      albertel  830: 		my $mandatory=
                    831: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    832: 		if ($status eq 'pass') {
                    833: 		    if (!$mandatory) { $optional_passed++; }
                    834: 		} elsif ($status eq 'fail') {
                    835: 		    if ($mandatory) { $mandatory_failed++; }
                    836: 		} elsif ($status eq 'ungraded') {
                    837: 		    $ungraded++;
                    838: 		} elsif ($status eq 'review') {
                    839: 		    $review++;
1.49      albertel  840: 		} else {
                    841: 		    $ungraded++;
                    842: 		}
1.20      albertel  843: 	    }
                    844: 	    if ($optional_passed < $optional_required) {
                    845: 		$mandatory_failed++;
                    846: 	    }
1.21      albertel  847: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.89      albertel  848: 	    $Apache::lonhomework::results{'resource.0.regrader'}=
1.20      albertel  849: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    850: 	    if ($review) {
1.89      albertel  851: 		$Apache::lonhomework::results{"resource.$version.0.status"}='review';
1.33      albertel  852: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    853: 		    &check_queue_unlock($env{'form.queue'});
                    854: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    855: 		} else {
1.49      albertel  856: 		    &move_between_queues($env{'form.queue'},'reviewqueue');
1.33      albertel  857: 		}
1.20      albertel  858: 	    } elsif ($ungraded) {
1.89      albertel  859: 		$Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
1.49      albertel  860: 		if ($env{'form.queue'} eq 'reviewqueue' ||
                    861: 		    $env{'form.queue'} eq 'none' ) {
1.33      albertel  862: 		    &Apache::lonxml::debug("moving back.");
1.49      albertel  863: 		    &move_between_queues($env{'form.queue'},'gradingqueue');
1.33      albertel  864: 		} else {
                    865: 		    &check_queue_unlock($env{'form.queue'});
                    866: 		}
1.20      albertel  867: 	    } elsif ($mandatory_failed) {
1.89      albertel  868: 		$Apache::lonhomework::results{"resource.$version.0.status"}='fail';
1.25      albertel  869: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    870: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    871: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel  872: 		&remove_from_queue($env{'form.queue'}); 
                    873: 
                    874: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  875: 		
                    876: 		if ($env{'form.regrade'} ne 'yes') {
                    877: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    878: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    879: 		    &Apache::grades::version_portfiles(
                    880: 						       \%Apache::lonhomework::results,
                    881: 						       ["$version.0.bridgetask"],$courseid,
                    882: 						       $symb,$udom,$uname,
                    883: 						       ["$version.0.bridgetask"]);
                    884: 		}
1.20      albertel  885: 	    } else {
1.89      albertel  886: 		$Apache::lonhomework::results{"resource.$version.0.status"}='pass';
1.25      albertel  887: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    888: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    889: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  890: 		&remove_from_queue($env{'form.queue'});
1.39      albertel  891: 
                    892: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  893: 		if ($env{'form.regrade'} ne 'yes') {
                    894: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    895: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    896: 		    &Apache::grades::version_portfiles(
                    897: 						       \%Apache::lonhomework::results,
                    898: 						       ["$version.0.bridgetask"],$courseid,
                    899: 						       $symb,$udom,$uname,
                    900: 						       ["$version.0.bridgetask"]);
                    901: 		}
1.20      albertel  902: 	    }
1.89      albertel  903: 	    $Apache::lonhomework::results{"resource.0.status"}=
                    904: 		$Apache::lonhomework::results{"resource.$version.0.status"};
1.28      albertel  905: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  906: 		$Apache::lonhomework::results{"resource.0.award"}=
1.50      albertel  907: 		    $Apache::lonhomework::results{"resource.$version.0.award"};
1.26      albertel  908: 		$Apache::lonhomework::results{"resource.0.awarded"}=
1.50      albertel  909: 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
1.26      albertel  910: 		$Apache::lonhomework::results{"resource.0.solved"}=
1.50      albertel  911: 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
1.25      albertel  912: 	    }
1.94      albertel  913: 	    &minimize_storage();
1.21      albertel  914: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  915: 	}
1.15      albertel  916:     } elsif ($target eq 'webgrade') {
1.18      albertel  917: 	$result.="</table>\n<hr />";
1.20      albertel  918: 	#$result.='<input type="submit" name="next" value="'.
                    919: 	#    &mt('Save &amp; Next').'" /> ';
                    920: 	#$result.='<input type="submit" name="end" value="'.
                    921: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    922: 	#$result.='<input type="submit" name="throwaway" value="'.
                    923: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    924: 	#$result.='<input type="submit" name="save" value="'.
                    925: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  926: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  927:     } elsif ($target eq 'meta') {
1.70      albertel  928: 	$result.=&Apache::response::meta_package_write('Task');
1.77      albertel  929:         $result.=&Apache::response::meta_stores_write('solved','string',
                    930: 						      'Problem Status');
                    931: 	$result.=&Apache::response::meta_stores_write('tries','int_zeropos',
                    932: 						      'Number of Attempts');
                    933: 	$result.=&Apache::response::meta_stores_write('awarded','float',
                    934: 						      'Partial Credit Factor');
                    935: 	$result.=&Apache::response::meta_stores_write('status','string',
                    936: 						      'Bridge Task Status');
1.1       albertel  937:     }
1.4       albertel  938:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  939:     return $result;
                    940: }
                    941: 
1.31      albertel  942: sub move_between_queues {
                    943:     my ($src_queue,$dest_queue)=@_;
1.49      albertel  944:     my $cur_data;
                    945:     if ($src_queue ne 'none') {
                    946: 	$cur_data=&get_queue_data($src_queue);
                    947: 	if (!$cur_data) { return 'not_exist'; }
                    948:     } else {
                    949: 	$cur_data = ['none'];
                    950:     }
1.82      albertel  951:     my $result=&add_to_queue($dest_queue,[$cur_data->[0]]);
1.31      albertel  952:     if ($result ne 'ok') {
                    953: 	return $result;
                    954:     }
                    955:     &check_queue_unlock($src_queue);
                    956:     return &remove_from_queue($src_queue);
1.21      albertel  957: }
                    958: 
                    959: sub check_queue_unlock {
1.32      albertel  960:     my ($queue,$key,$allow_not_me)=@_;
1.49      albertel  961:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel  962:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel  963:     if (!defined($key)) {
                    964: 	$key="$symb\0queue\0$uname\@$udom";
                    965:     }
1.30      albertel  966:     my $cnum=$env{'course.'.$cid.'.num'};
                    967:     my $cdom=$env{'course.'.$cid.'.domain'};
                    968:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    969:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                    970:     if  ($who eq $me) {
1.32      albertel  971: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                    972:     } elsif ($allow_not_me) {
1.33      albertel  973: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel  974: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel  975:     }
1.32      albertel  976:     return 'not_owner';
1.21      albertel  977: }
                    978: 
1.88      albertel  979: sub in_queue {
                    980:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
                    981:     if ($queue eq 'none') { return 0; }
                    982:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                    983: 	|| !defined($udom) || !defined($uname)) {
                    984: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    985: 	$cnum=$env{'course.'.$cid.'.num'};
                    986: 	$cdom=$env{'course.'.$cid.'.domain'};
                    987:     }
                    988: 
                    989:     my $key=&encode_queue_key($symb,$udom,$uname);
                    990:     my %results = &Apache::lonnet::get($queue,[$key],$cdom,$cnum);
                    991: 
                    992:     if (defined($results{$key})) {
                    993: 	return 1;
                    994:     }
                    995:     return 0;
                    996: }
                    997: 
1.21      albertel  998: sub remove_from_queue {
1.86      albertel  999:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
1.49      albertel 1000:     if ($queue eq 'none') { return 'ok'; }
1.86      albertel 1001:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                   1002: 	|| !defined($udom) || !defined($uname)) {
                   1003: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1004: 	$cnum=$env{'course.'.$cid.'.num'};
                   1005: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1006:     }
1.88      albertel 1007:     if (!&in_queue($queue,$symb,$cdom,$cnum,$udom,$uname)) {
                   1008: 	return 'ok';
                   1009:     }
1.86      albertel 1010:     my $key=&encode_queue_key($symb,$udom,$uname);
1.27      albertel 1011:     my @keys=($key,"$key\0locked");
1.31      albertel 1012:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel 1013: }
                   1014: 
1.16      albertel 1015: sub setup_env_for_other_user {
                   1016:     my ($queue_key,$safeeval)=@_;
                   1017:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel 1018:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel 1019:     $env{'form.grade_symb'}=$symb;
                   1020:     $env{'form.grade_domain'}=$udom;
                   1021:     $env{'form.grade_username'}=$uname;
                   1022:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                   1023:     &Apache::lonxml::initialize_rndseed($safeeval);
                   1024: }
                   1025: 
1.31      albertel 1026: sub get_queue_data {
                   1027:     my ($queue)=@_;
                   1028:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1029:     my $cnum=$env{'course.'.$cid.'.num'};
                   1030:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1031:     my $todo="$symb\0queue\0$uname\@$udom";
                   1032:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                   1033:     if ($key eq $todo && ref($value)) {
                   1034: 	return $value;
                   1035:     }
                   1036:     return undef;
                   1037: }
                   1038: 
1.84      albertel 1039: 
1.49      albertel 1040: sub check_queue_for_key {
1.84      albertel 1041:     my ($cdom,$cnum,$queue,$todo)=@_;
                   1042: 
1.49      albertel 1043:     my %results=
                   1044: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
                   1045:     
                   1046:     if (exists($results{$todo}) && ref($results{$todo})) {
                   1047: 	if (defined($results{"$todo\0locked"})) {
                   1048: 	    return 'locked';
                   1049: 	}
1.86      albertel 1050: 	my $slot;
                   1051: 	if (ref($results{$todo}) eq 'ARRAY')  {
                   1052: 	    $slot = $results{$todo}[0];
                   1053: 	} elsif (ref($results{$todo}) eq 'HASH')  {
                   1054: 	    $slot = $results{$todo}{'slot'};
                   1055: 	}
                   1056: 	if (defined($slot)) {
                   1057: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1058: 	    if ($slot_data{'endtime'} > time) { 
                   1059: 		return 'in_progress';
                   1060: 	    }
1.58      albertel 1061: 	}
1.49      albertel 1062: 	return 'enqueued';
                   1063:     }
                   1064:     return undef;
                   1065: }
                   1066: 
1.14      albertel 1067: sub add_to_queue {
1.82      albertel 1068:     my ($queue,$user_data)=@_;
1.49      albertel 1069:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel 1070:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.82      albertel 1071:     if (!$cid || $env{'request.state'} eq 'construct') {
                   1072: 	return 'no_queue';
                   1073:     }
1.14      albertel 1074:     my $cnum=$env{'course.'.$cid.'.num'};
                   1075:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1076:     my %data;
1.82      albertel 1077:     $data{"$symb\0queue\0$uname\@$udom"}=$user_data;
1.83      albertel 1078:     return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
1.14      albertel 1079: }
                   1080: 
                   1081: sub show_queue {
1.32      albertel 1082:     my ($queue,$with_selects)=@_;
1.14      albertel 1083:     my $result;
                   1084:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1085:     my $cnum=$env{'course.'.$cid.'.num'};
                   1086:     my $cdom=$env{'course.'.$cid.'.domain'};
1.59      albertel 1087: 
                   1088:     my @chosen_sections=
                   1089: 	&Apache::loncommon::get_env_multiple('form.chosensections');
                   1090:     &Apache::grades::init_perm();
                   1091:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
                   1092:     &Apache::grades::reset_perm();
1.63      albertel 1093:     if (!(grep(/^all$/,@chosen_sections))) {
                   1094: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1095: 	    '</tt>.</p> '."\n";
                   1096:     }
1.59      albertel 1097: 
1.16      albertel 1098:     my $regexp="^$symb\0";
1.30      albertel 1099:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel 1100:     my ($tmp)=%queue;
                   1101:     if ($tmp=~/^error: 2 /) {
1.33      albertel 1102: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel 1103:     }
1.103   ! albertel 1104:     my $title=&Apache::lonnet::gettitle($symb);
        !          1105:     $result.="\n<h3>Current Queue - $title $queue </h3><table border='1'><tr>";
        !          1106:     if ($with_selects) { $result.="<th>Status</th><th></th>"; }
        !          1107:     $result.="<th>user</th><th>data</th></tr>";
1.14      albertel 1108:     foreach my $key (sort(keys(%queue))) {
1.59      albertel 1109: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1110: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
1.32      albertel 1111: 	if ($key=~/locked$/ && !$with_selects) {
1.103   ! albertel 1112: 	    $result.="<tr><td>$uname</td>";
        !          1113: 	    $result.='<td>'.$queue{$key}.'</td></tr>';
1.32      albertel 1114: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.103   ! albertel 1115: 	    $result.="<tr><td></td>";
        !          1116: 	    $result.='<td>'.
1.16      albertel 1117: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel 1118: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1119: 	    $result.="<tr>";
1.35      albertel 1120: 	    my $slot=$queue{$key}->[0];
                   1121: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel 1122: 	    if ($with_selects) {
                   1123: 		my $ekey=&Apache::lonnet::escape($key);
1.103   ! albertel 1124: 		my ($action,$description,$status)=('select',&mt('Select'));
1.32      albertel 1125: 		if (exists($queue{"$key\0locked"})) {
                   1126: 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
1.103   ! albertel 1127: 		    $status=&mt('Locked by <tt>[_1]</tt>',$queue{"$key\0locked"});
1.32      albertel 1128: 		    if ($me eq $queue{"$key\0locked"}) {
                   1129: 			($action,$description)=('resume',&mt('Resume'));
                   1130: 		    } else {
                   1131: 			($action,$description)=('unlock',&mt('Unlock'));
                   1132: 		    }
                   1133: 		}
1.62      albertel 1134: 		my $seclist;
                   1135: 		foreach my $sec (@chosen_sections) {
                   1136: 		    $seclist.='<input type="hidden" name="chosensections" 
                   1137:                                value="'.$sec.'" />';
                   1138: 		}
1.35      albertel 1139: 		if (time > $slot_data{'endtime'}) {
                   1140: 		    $result.=(<<FORM);
1.103   ! albertel 1141: <td>$status</td>
1.32      albertel 1142: <td>
1.103   ! albertel 1143: <form style="display: inline" method="POST">
1.32      albertel 1144:  <input type="hidden" name="gradingkey" value="$ekey" />
                   1145:  <input type="hidden" name="queue" value="$queue" />
                   1146:  <input type="hidden" name="gradingaction" value="$action" />
                   1147:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel 1148:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel 1149:  <input type="submit" name="submit" value="$description" />
1.62      albertel 1150:  $seclist
1.32      albertel 1151: </form>
                   1152: </td>
                   1153: FORM
1.35      albertel 1154: 
                   1155:                 } else {
                   1156: 		    $result.='<td>'.&mt("In Progress").'</td>'
                   1157: 		}
1.32      albertel 1158: 	    }
1.103   ! albertel 1159: 	    $result.="<td>$uname</td>";
        !          1160: 	    $result.='<td>Slot: '.$slot.' End time: '.
1.20      albertel 1161: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                   1162: 		"</td></tr>";
1.16      albertel 1163: 	}
1.14      albertel 1164:     }
1.15      albertel 1165:     $result.="</table><hr />\n";
1.14      albertel 1166:     return $result;
                   1167: }
                   1168: 
1.34      albertel 1169: sub get_queue_counts {
                   1170:     my ($queue)=@_;
                   1171:     my $result;
                   1172:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1173:     my $cnum=$env{'course.'.$cid.'.num'};
                   1174:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1175:     my $regexp="^$symb\0";
                   1176:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1177:     my ($tmp)=%queue;
                   1178:     if ($tmp=~/^error: 2 /) {
                   1179: 	return (0,0,0);
                   1180:     }
                   1181:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
1.96      albertel 1182:     my %slot_cache;
1.34      albertel 1183:     foreach my $key (sort(keys(%queue))) {
                   1184: 	if ($key=~/locked$/) {
                   1185: 	    $locks++;
                   1186: 	} elsif ($key=~/timestamp$/) {
                   1187: 	    #ignore
                   1188: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1189: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1190: 	    $entries++;
                   1191: 	    my $slot=$queue{$key}->[0];
1.96      albertel 1192: 	    if (!exists($slot_cache{$slot})) {
                   1193: 		my %slot_data=&Apache::lonnet::get_slot($slot);
                   1194: 		$slot_cache{$slot} = \%slot_data;
                   1195: 	    }
                   1196: 	    if (time > $slot_cache{$slot}{'endtime'}) {
1.34      albertel 1197: 		$ready_to_grade++;
                   1198: 	    }
                   1199: 	}
                   1200:     }
                   1201:     return ($entries,$ready_to_grade,$locks);
                   1202: }
                   1203: 
1.49      albertel 1204: sub encode_queue_key {
                   1205:     my ($symb,$udom,$uname)=@_;
                   1206:     return "$symb\0queue\0$uname\@$udom";
                   1207: }
                   1208: 
1.14      albertel 1209: sub decode_queue_key {
                   1210:     my ($key)=@_;
                   1211:     my ($symb,undef,$user) = split("\0",$key);
                   1212:     my ($uname,$udom) = split('@',$user);
                   1213:     return ($symb,$uname,$udom);
                   1214: }
                   1215: 
                   1216: sub queue_key_locked {
1.30      albertel 1217:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel 1218:     if (!defined($cdom) || !defined($cnum)) {
                   1219: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1220: 	$cnum=$env{'course.'.$cid.'.num'};
                   1221: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1222:     }
1.14      albertel 1223:     my ($key_locked,$value)=
1.30      albertel 1224: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel 1225:     if ($key_locked eq "$key\0locked") {
                   1226: 	return $value;
                   1227:     }
                   1228:     return undef;
                   1229: }
                   1230: 
                   1231: sub pick_from_queue_data {
1.30      albertel 1232:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
1.98      albertel 1233:     my @possible; # will hold queue entries that are valid to be selected
1.30      albertel 1234:     foreach my $key (keys(%$queuedata)) {
1.68      albertel 1235: 	if ($key =~ /\0locked$/) { next; }
                   1236: 	if ($key =~ /\0timestamp$/) { next; }
1.14      albertel 1237: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                   1238: 	if ($check_section) {
                   1239: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel 1240: 	    if ($section eq $check_section) {
1.33      albertel 1241: 		&Apache::lonxml::debug("my sec");
1.15      albertel 1242: 		next;
                   1243: 	    }
1.14      albertel 1244: 	}
1.30      albertel 1245: 	my $slot=$queuedata->{$key}[0];
1.14      albertel 1246: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel 1247: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel 1248: 	    &Apache::lonxml::debug("not time");
1.15      albertel 1249: 	    next;
                   1250: 	}
1.98      albertel 1251: 	if (exists($queuedata->{"$key\0locked"})) {
1.33      albertel 1252: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel 1253: 	    next;
                   1254: 	}
1.98      albertel 1255: 	push(@possible,[$key,$slot_data{'endtime'}]);
                   1256:     }
                   1257:     if (@possible) {
                   1258:         # sort entries in order by slot end time
                   1259: 	@possible = sort { $a->[1] <=> $b->[1] } @possible;
                   1260: 	# pick one of the first ten entries
                   1261: 	my $max=($#possible < 10) ? $#possible : 10;
                   1262: 	return $possible[int(rand($max))][0];
1.14      albertel 1263:     }
                   1264:     return undef;
                   1265: }
                   1266: 
1.15      albertel 1267: sub find_mid_grade {
1.30      albertel 1268:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel 1269:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel 1270:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1271:     if ($todo) {
1.30      albertel 1272: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel 1273: 	if ($who eq $me) { return $todo; }
                   1274:     }
                   1275:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel 1276:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel 1277:     foreach my $key (keys(%locks)) {
                   1278: 	my $who=$locks{$key};
                   1279: 	if ($who eq $me) {
                   1280: 	    $todo=$key;
                   1281: 	    $todo=~s/\0locked$//;
                   1282: 	    return $todo;
                   1283: 	}
                   1284:     }
                   1285:     return undef;
                   1286: }
                   1287: 
1.32      albertel 1288: sub lock_key {
                   1289:     my ($queue,$todo)=@_;
                   1290:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1291:     my (undef,$cid)=&Apache::lonxml::whichuser();
                   1292:     my $cnum=$env{'course.'.$cid.'.num'};
                   1293:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1294:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                   1295: 					$cdom,$cnum);
1.33      albertel 1296:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel 1297:     if ($success eq 'ok') {
                   1298: 	return 1;
                   1299:     }
                   1300:     return 0;
                   1301: }
                   1302: 
1.86      albertel 1303: sub get_queue_symb_status {
1.85      albertel 1304:     my ($queue,$symb,$cdom,$cnum) = @_;
                   1305:     if (!defined($cdom) || !defined($cnum)) {
                   1306: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1307: 	$cnum=$env{'course.'.$cid.'.num'};
                   1308: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1309:     }
                   1310:     my $regexp="^$symb\0";
                   1311:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1312:     my ($tmp)=%queue;
                   1313:     if ($tmp=~/^error: 2 /) { return; }
                   1314:     my @users;
                   1315:     foreach my $key (sort(keys(%queue))) {
                   1316: 	next if ($key=~/locked$/);
                   1317: 	next if ($key=~/timestamp$/);
                   1318: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1319: 	push(@users,"$uname:$udom");
                   1320:     }
                   1321:     return @users;
                   1322: }
                   1323: 
1.14      albertel 1324: sub get_from_queue {
1.30      albertel 1325:     my ($queue)=@_;
1.14      albertel 1326:     my $result;
                   1327:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1328:     my $cnum=$env{'course.'.$cid.'.num'};
                   1329:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel 1330:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel 1331:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel 1332:     if ($todo) { return $todo; }
1.95      albertel 1333:     my $attempts=0;
1.14      albertel 1334:     while (1) {
1.95      albertel 1335: 	if ($attempts > 2) {
                   1336: 	    # tried twice to get a queue entry, giving up
                   1337: 	    return (undef,'unable');
                   1338: 	}
1.14      albertel 1339: 	my $starttime=time;
1.83      albertel 1340: 	&Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
                   1341: 			      $cdom,$cnum);
1.33      albertel 1342: 	&Apache::lonxml::debug("$starttime");
1.14      albertel 1343: 	my $regexp="^$symb\0queue\0";
1.97      albertel 1344: 	my $range= ($attempts < 1 ) ? '0-100' : '0-400';
                   1345: 
1.98      albertel 1346: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel 1347: 	#make a pass looking for a user _not_ in my section
1.14      albertel 1348: 	if ($env{'request.course.sec'}) {
1.33      albertel 1349: 	    &Apache::lonxml::debug("sce");
1.30      albertel 1350: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1351: 					\%queue,$cdom,$cnum);
1.33      albertel 1352: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel 1353: 	}
1.33      albertel 1354: 	# no one _not_ in our section so look for any user that is
                   1355: 	# ready for grading
1.14      albertel 1356: 	if (!$todo) {
1.33      albertel 1357: 	    &Apache::lonxml::debug("no sce");
1.98      albertel 1358: 	    $todo=&pick_from_queue_data($queue,undef,\%queue,$cdom,$cnum);
1.33      albertel 1359: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel 1360: 	}
                   1361: 	# no user to grade 
                   1362: 	if (!$todo) { last; }
1.33      albertel 1363: 	&Apache::lonxml::debug("got $todo");
1.14      albertel 1364: 	# otherwise found someone so lets try to lock them
1.32      albertel 1365: 	# unless someone else already picked them
1.95      albertel 1366: 	if (!&lock_key($queue,$todo)) {
                   1367: 	    $attempts++;
                   1368: 	    next;
                   1369: 	}
1.14      albertel 1370: 	my (undef,$endtime)=
1.30      albertel 1371: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel 1372: 				 $cdom,$cnum);
1.33      albertel 1373: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel 1374: 	# someone else already modified the queue, 
                   1375: 	# perhaps our picked user wass already fully graded between
                   1376: 	# when we picked him and when we locked his record? so lets
                   1377: 	# double check.
                   1378: 	if ($endtime != $starttime) {
                   1379: 	    my ($key,$value)=
1.30      albertel 1380: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel 1381: 				     $cdom,$cnum);
1.33      albertel 1382: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel 1383: 	    if ($key eq $todo && ref($value)) {
                   1384: 	    } else {
1.30      albertel 1385: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel 1386: 				     $cdom,$cnum);
1.33      albertel 1387: 		&Apache::lonxml::debug("del");
1.95      albertel 1388: 		$attempts++;
1.14      albertel 1389: 		next;
                   1390: 	    }
                   1391: 	}
1.33      albertel 1392: 	&Apache::lonxml::debug("last $todo");
1.14      albertel 1393: 	last;
                   1394:     }
                   1395:     return $todo;
                   1396: }
                   1397: 
1.49      albertel 1398: sub select_user {
                   1399:     my ($symb,$cid)=&Apache::lonxml::whichuser();
                   1400: 
1.59      albertel 1401:     my @chosen_sections=
                   1402: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.49      albertel 1403:     &Apache::grades::init_perm();
1.59      albertel 1404:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
1.49      albertel 1405:     &Apache::grades::reset_perm();
1.63      albertel 1406:     
                   1407:     my $result;
                   1408:     if (!(grep(/^all$/,@chosen_sections))) {
                   1409: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1410: 	    '</tt>.</p> '."\n";
                   1411:     }
                   1412:     $result.='<table border="1">';
1.49      albertel 1413: 
                   1414:     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
                   1415: 	my ($uname,$udom) = split(/:/,$student);
1.59      albertel 1416: 	
1.84      albertel 1417: 	my $cnum=$env{'course.'.$cid.'.num'};
                   1418: 	my $cdom=$env{'course.'.$cid.'.domain'};
1.88      albertel 1419: 	my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname,
                   1420: 					 'Task');
1.49      albertel 1421: 	my $queue = 'none';
1.58      albertel 1422: 	my $cannot_grade;
                   1423: 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1424: 	    $queue = 'reviewqueue';
1.58      albertel 1425: 	    if ($status{'reviewqueue'} eq 'in_progress') {
                   1426: 		$cannot_grade=1;
                   1427: 	    }
                   1428: 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1429: 	    $queue = 'gradingqueue';
1.58      albertel 1430: 	    if ($status{'gradingqueue'} eq 'in_progress') {
                   1431: 		$cannot_grade=1;
                   1432: 	    }
1.49      albertel 1433: 	}
                   1434: 	my $todo = 
                   1435: 	    &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
1.58      albertel 1436: 	if ($cannot_grade) {
                   1437: 	    $result.='<tr><td>&nbsp;</td><td>'.$fullname->{$student}.
                   1438: 		'</td><td>';
                   1439: 	} else {
1.62      albertel 1440: 	    my $seclist;
                   1441: 	    foreach my $sec (@chosen_sections) {
                   1442: 		$seclist.='<input type="hidden" name="chosensections" 
                   1443:                                value="'.$sec.'" />';
                   1444: 	    }
1.102     albertel 1445: 	    my $studentdis = $student;
                   1446: 	    $studentdis =~ tr/:/@/;
1.58      albertel 1447: 	    $result.=<<RESULT;
1.49      albertel 1448: <tr>
                   1449:   <td>
1.102     albertel 1450:     <form style="display: inline" method="POST">
1.49      albertel 1451:       <input type="hidden" name="gradingkey" value="$todo" />
                   1452:       <input type="hidden" name="queue" value="$queue" />
                   1453:       <input type="hidden" name="webgrade" value="no" />
1.52      albertel 1454:       <input type="hidden" name="regrade" value="yes" />
1.62      albertel 1455:       <input type="submit" name="submit" value="Regrade" />
                   1456:       $seclist
1.49      albertel 1457:     </form>
1.102     albertel 1458:   <td>$fullname->{$student} <tt>($studentdis)</tt></td>
1.49      albertel 1459:   <td>
                   1460: RESULT
1.58      albertel 1461:         }
1.49      albertel 1462:         if ($status{'status'} eq 'pass') {
                   1463: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
                   1464: 	} elsif ($status{'status'} eq 'fail') {
                   1465: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
                   1466: 	} elsif ($status{'status'} eq 'review') {
                   1467: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
                   1468: 	} elsif ($status{'status'} eq 'ungraded') {
                   1469: 	    $result .= &mt('Ungraded');
                   1470: 	} elsif ($status{'status'} ne '') {
                   1471: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
                   1472: 	} else {
                   1473: 	    $result.="&nbsp;";
                   1474: 	}
                   1475: 	if ($status{'version'}) {
                   1476: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
                   1477: 	}
1.101     albertel 1478: 	if ($status{'grader'}) {
                   1479: 	    $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
                   1480: 	}
1.49      albertel 1481: 	$result.= '</td><td>';
                   1482: 	if ($status{'reviewqueue'} eq 'enqueued') {
                   1483: 	    $result .= &mt('Awaiting Review');
                   1484: 	} elsif ($status{'reviewqueue'} eq 'locked') {
                   1485: 	    $result .= &mt('Under Review');
1.58      albertel 1486: 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
                   1487: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1488: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
                   1489: 	    $result .= &mt('Awaiting Grading');
                   1490: 	} elsif ($status{'gradingqueue'} eq 'locked') {
                   1491: 	    $result .= &mt('Being Graded');
1.58      albertel 1492: 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
                   1493: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1494: 	} else {
                   1495: 	    $result.="&nbsp;";
                   1496: 	}
                   1497: 	$result.= '</td></tr>';
                   1498:     }
                   1499:     $result.='</table>';
                   1500:     return $result;
                   1501: }
                   1502: 
                   1503: sub get_student_status {
1.86      albertel 1504:     my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
                   1505: 
                   1506:     my %status;
                   1507: 
                   1508:     if ($type eq 'Task') {
                   1509: 	my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
1.49      albertel 1510: 					  $udom,$uname);
1.89      albertel 1511: 	$status{'status'}=$record{'resource.0.status'};
                   1512: 	$status{'version'}=$record{'resource.0.version'};
                   1513: 	$status{'grader'}=$record{'resource.0.regrader'};
1.86      albertel 1514:     }
                   1515:     $status{'reviewqueue'}=
                   1516: 	&check_queue_for_key($cdom,$cnum,'reviewqueue',
                   1517: 			     &encode_queue_key($symb,$udom,$uname));
                   1518:     $status{'gradingqueue'}=
                   1519: 	&check_queue_for_key($cdom,$cnum,'gradingqueue',
                   1520: 			     &encode_queue_key($symb,$udom,$uname));
1.49      albertel 1521:     return %status;
                   1522: }
                   1523: 
1.1       albertel 1524: sub start_ClosingParagraph {
                   1525:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1526:     my $result;
                   1527:     if ($target eq 'web') {
1.13      albertel 1528:     } elsif ($target eq 'webgrade') {
                   1529: 	&Apache::lonxml::startredirection();
1.1       albertel 1530:     }
                   1531:     return $result;
                   1532: }
                   1533: 
                   1534: sub end_ClosingParagraph {
                   1535:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1536:     my $result;
                   1537:     if ($target eq 'web') {
1.13      albertel 1538:     } elsif ($target eq 'webgrade') {
                   1539: 	&Apache::lonxml::endredirection();
1.1       albertel 1540:     }
                   1541:     return $result;
                   1542: }
                   1543: 
1.19      albertel 1544: sub get_id {
                   1545:     my ($parstack,$safeeval)=@_;
                   1546:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1547:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1548:     return $id;
                   1549: }
                   1550: 
1.1       albertel 1551: my %dimension;
                   1552: sub start_Dimension {
                   1553:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1554:     undef(%dimension);
1.19      albertel 1555:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel 1556:     $Apache::bridgetask::dimension=$dim_id;
                   1557:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                   1558:     undef(@Apache::bridgetask::instance);
1.20      albertel 1559:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                   1560: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.54      albertel 1561:     &Apache::lonxml::startredirection();
                   1562:     return &internal_location($dim_id);
1.1       albertel 1563: }
                   1564: 
1.13      albertel 1565: sub get_instance {
1.75      albertel 1566:     my ($dim)=@_;
                   1567:     my $rand_alg=&Apache::lonnet::get_rand_alg();
                   1568:     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
                   1569: 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
                   1570: 	$rand_alg eq '64bit4' ) {
                   1571: 	&Apache::response::pushrandomnumber();
                   1572: 	my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
                   1573: 	my $num=@order;
                   1574: 	my $version=&get_version();
                   1575: 	my $which=($version-1)%$num;
                   1576: 	return $order[$which];
                   1577:     } else {
                   1578: 	my ($version,$previous) = &get_version();
                   1579: 	my $instance = 
                   1580: 	    $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
                   1581: 	if (defined($instance)) { return $instance; }
                   1582: 
                   1583: 	&Apache::response::pushrandomnumber();
                   1584: 	my @instances = @{$dimension{'instances'}};
                   1585: 	# remove disabled instances
                   1586: 	for (my $i=0; $i < $#instances; $i++) {
                   1587: 	    if ($dimension{$instances[$i].'.disabled'}) {
                   1588: 		splice(@instances,$i,1);
                   1589: 		$i--;
                   1590: 	    }
                   1591: 	}
                   1592: 	@instances = &Math::Random::random_permutation(@instances);
                   1593: 	$instance  = $instances[($version-1)%scalar(@instances)];
                   1594: 	$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
                   1595: 	    $instance;
1.79      albertel 1596: 	$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
1.75      albertel 1597: 	&Apache::response::poprandomnumber();
                   1598: 	return $instance;
                   1599:     }
1.13      albertel 1600: }
                   1601: 
1.18      albertel 1602: {
                   1603:     my $last_link;
                   1604:     sub end_Dimension {
                   1605: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.54      albertel 1606: 	my $result=&Apache::lonxml::endredirection();
1.25      albertel 1607: 	my $dim=&get_id($parstack,$safeeval);
1.75      albertel 1608: 	my $instance=&get_instance($dim);
1.25      albertel 1609: 	my $version=&get_version();
1.18      albertel 1610: 	if ($target eq 'web') {
1.47      albertel 1611: 	    @Apache::scripttag::parser_env = @_;
                   1612: 	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
1.76      albertel 1613: 	    my @instances = $instance;
                   1614: 	    if (&Apache::response::showallfoils()) {
                   1615: 		@instances = @{$dimension{'instances'}};
                   1616: 	    }
                   1617: 	    foreach my $instance (@instances) {
                   1618: 		@Apache::scripttag::parser_env = @_;
                   1619: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.89      albertel 1620: 		if ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass' ||
                   1621: 		    $Apache::lonhomework::history{"resource.$version.0.status"} eq 'fail') {
1.76      albertel 1622: 
1.89      albertel 1623: 		    my $dim_status=$Apache::lonhomework::history{"resource.$version.0.$dim.status"};
1.76      albertel 1624: 		    my $mandatory='Mandatory';
                   1625: 		    if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
                   1626: 			$mandatory='Optional';
                   1627: 		    }
                   1628: 		    my $dim_info="<div class='$dim_status'>\n";
                   1629: 		    if ($dim_status eq 'pass') {
                   1630: 			$dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1.54      albertel 1631: 		    }
1.76      albertel 1632: 		    if ($dim_status eq 'fail') {
                   1633: 			$dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1.53      albertel 1634: 		    }
1.76      albertel 1635: 		    my $man_count=0;
                   1636: 		    my $man_passed=0;
                   1637: 		    my $opt_count=0;
                   1638: 		    my $opt_passed=0;
                   1639: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1640: 			if ($dimension{$instance.'.criteria.'.$id.'.mandatory'} 
                   1641: 			    eq 'N') {
                   1642: 			    $opt_count++;
1.89      albertel 1643: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"} eq 'pass') {
1.76      albertel 1644: 				$opt_passed++;
                   1645: 			    }
                   1646: 			} else {
                   1647: 			    $man_count++;
1.89      albertel 1648: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"} eq 'pass') {
1.76      albertel 1649: 				$man_passed++;
                   1650: 			    }
                   1651: 			}
1.22      albertel 1652: 		    }
1.76      albertel 1653: 		    if ($man_passed eq $man_count) { $man_passed='all'; }
                   1654: 		    my $opt_req=$dimension{$instance.'.optionalrequired'};
                   1655: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                   1656: 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
                   1657: 
                   1658: 		    my $internal_location=&internal_location($dim);
                   1659: 		    $result=~s/\Q$internal_location\E/$dim_info/;
                   1660: 
                   1661: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.89      albertel 1662: 			my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
                   1663: 			my $comment=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"};
1.76      albertel 1664: 			my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1665: 			if ($mandatory) {
                   1666: 			    $mandatory='Mandatory';
                   1667: 			} else {
                   1668: 			    $mandatory='Optional';
                   1669: 			}
                   1670: 			if ($status eq 'fail') {
                   1671: 			} elsif ($status eq 'pass') {
                   1672: 			} else {
                   1673: 			    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
                   1674: 			}
                   1675: 			my $status_display=$status;
                   1676: 			$status_display=~s/^([a-z])/uc($1)/e;
                   1677: 			@Apache::scripttag::parser_env = @_;
                   1678: 			$result.='<div class="'.$status.'"><h4>'.$mandatory.
                   1679: 			    ' Criteria</h4><p>';
                   1680: 			@Apache::scripttag::parser_env = @_;
                   1681: 			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1682: 			$result.='</p><p class="grade">'.$status_display.'</p>';
1.89      albertel 1683: 			if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}) {
1.100     albertel 1684: 			    $result.='<p class="comment">'.&mt('Comment: [_1]',$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</p>';
1.76      albertel 1685: 			}
                   1686: 			$result.='</div>';
1.22      albertel 1687: 		    }
                   1688: 		}
                   1689: 	    }
1.18      albertel 1690: 	} elsif ($target eq 'webgrade') {
1.47      albertel 1691: 	    # in case of any side effects that we need
                   1692: 	    @Apache::scripttag::parser_env = @_;
                   1693: 	    &Apache::scripttag::xmlparse($dimension{'intro'});
                   1694: 	    @Apache::scripttag::parser_env = @_;
                   1695: 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.18      albertel 1696: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1697: 		my $link='criteria_'.$instance.'_'.$id;
1.89      albertel 1698: 		my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
1.19      albertel 1699: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel 1700: 		    '<a name="'.$link.'" />'.
                   1701: 		    '<a name="next_'.$last_link.'" />'.
1.47      albertel 1702: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
                   1703: 		@Apache::scripttag::parser_env = @_;
                   1704: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1705: 		$result.='</textarea>'.
1.18      albertel 1706: 		    #$dimension{$instance.'.criteria.'.$id}.
                   1707: 		    '</td>'.
1.19      albertel 1708: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.89      albertel 1709: 		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</textarea>'.
1.18      albertel 1710: 		    '</td>'.
                   1711: 		    '<td>'.
1.47      albertel 1712: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
1.30      albertel 1713: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
                   1714: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
                   1715: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1.18      albertel 1716: 		    '</td>'.
                   1717: 		    '<td>'.
                   1718: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel 1719: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
1.18      albertel 1720: 		    '</td></tr>';
                   1721: 		$last_link=$link;
                   1722: 	    }
1.22      albertel 1723: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1724: 	    my $optional_passed=0;
1.20      albertel 1725: 	    my $mandatory_failed=0;
                   1726: 	    my $ungraded=0;
                   1727: 	    my $review=0;
1.19      albertel 1728: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.89      albertel 1729: 		my $status=$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                   1730: 		$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel 1731: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1732: 		if ($status eq 'pass') {
                   1733: 		    if (!$mandatory) { $optional_passed++; }
                   1734: 		} elsif ($status eq 'fail') {
                   1735: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1736: 		} elsif ($status eq 'review') {
                   1737: 		    $review++;
1.20      albertel 1738: 		} elsif ($status eq 'ungraded') {
                   1739: 		    $ungraded++;
1.21      albertel 1740: 		} else {
1.47      albertel 1741: 		    $ungraded++;
1.19      albertel 1742: 		}
                   1743: 	    }
1.20      albertel 1744: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1745: 		$mandatory_failed++;
                   1746: 	    }
1.21      albertel 1747: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1748: 	    if ($review) {
1.89      albertel 1749: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1750: 		    'review';
1.20      albertel 1751: 	    } elsif ($ungraded) {
1.89      albertel 1752: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1753: 		    'ungraded';
1.20      albertel 1754: 	    } elsif ($mandatory_failed) {
1.89      albertel 1755: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1756: 		    'fail';
1.20      albertel 1757: 	    } else {
1.91      albertel 1758: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1759: 		    'pass';
1.20      albertel 1760: 	    }
1.69      albertel 1761: 	} else {
                   1762: 	    # any other targets no output
                   1763: 	    undef($result);
1.13      albertel 1764: 	}
1.18      albertel 1765: 	return $result;
1.1       albertel 1766:     }
                   1767: }
                   1768: 
                   1769: sub start_IntroParagraph {
1.87      albertel 1770:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel 1771:     my $result;
1.13      albertel 1772:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1773: 	if ($tagstack->[-2] eq 'Dimension') {
1.87      albertel 1774: 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser,$style);
1.47      albertel 1775: 	
                   1776: 	} elsif ($target eq 'webgrade') {
1.87      albertel 1777: 	    &Apache::lonxml::get_all_text('/introparagraph',$parser,$style);
1.1       albertel 1778: 	}
1.47      albertel 1779: 	
1.1       albertel 1780:     }
                   1781:     return $result;
                   1782: }
                   1783: 
                   1784: sub end_IntroParagraph {
                   1785: }
                   1786: 
                   1787: sub start_Instance {
                   1788:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1789:     my $id=&get_id($parstack,$safeeval);
                   1790:     push(@{$dimension{'instances'}},$id);
                   1791:     push(@Apache::bridgetask::instance,$id);
                   1792:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1793:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1794: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.75      albertel 1795:     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
                   1796:     if (lc($disabled) eq 'yes') {
                   1797: 	$dimension{$id.'.disabled'}='1';
                   1798:     }
1.1       albertel 1799:     return '';
                   1800: }
                   1801: 
                   1802: sub end_Instance {
                   1803: }
                   1804: 
                   1805: sub start_InstanceText {
1.87      albertel 1806:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.47      albertel 1807:     my $instance_id=$Apache::bridgetask::instance[-1];
1.87      albertel 1808:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
1.13      albertel 1809:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1810: 	$dimension{$instance_id.'.text'}=$text;
1.1       albertel 1811:     }
                   1812:     return '';
                   1813: }
                   1814: 
                   1815: sub end_InstanceText {
                   1816:     return '';
                   1817: }
                   1818: 
                   1819: sub start_Criteria {
1.87      albertel 1820:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.9       albertel 1821:     my $instance_id=$Apache::bridgetask::instance[-1];
1.87      albertel 1822:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
1.21      albertel 1823:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.19      albertel 1824: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1825: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1826: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1827: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1828: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1829:     }
                   1830:     return '';
                   1831: }
                   1832: 
1.47      albertel 1833: sub end_Criteria {
                   1834: }
                   1835: 
1.4       albertel 1836: sub proctor_validation_screen {
                   1837:     my ($slot) = @_;
                   1838:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1839:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 1840:     my $name=&Apache::loncommon::plainname($user,$domain);
                   1841:     
1.4       albertel 1842:     my $msg;
1.11      albertel 1843:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1844: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1845: 	    .'</font></p>';
                   1846:     }
1.47      albertel 1847:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 1848:     my $result= (<<ENDCHECKOUT);
                   1849: <h2>Proctor Validation</h2>
                   1850:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1851:     $msg
1.11      albertel 1852: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel 1853: <input type="hidden" name="validate" value="yes" />
                   1854: <input type="hidden" name="submitted" value="yes" />
                   1855: <table>
1.44      albertel 1856:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 1857:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 1858:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 1859: </table>
                   1860: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 1861: <table border="1">
                   1862:   <tr><td>
                   1863:     <table>
                   1864:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   1865:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 1866:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.44      albertel 1867:       <tr><td>Usename</td><td>$user\@$domain</td></tr>
                   1868:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   1869:     </table>
                   1870:   </tr></td>
                   1871: </table>
1.4       albertel 1872: </form>
                   1873: ENDCHECKOUT
                   1874:     return $result;
                   1875: }
                   1876: 
1.1       albertel 1877: 1;
                   1878: __END__

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