Annotation of loncom/homework/bridgetask.pm, revision 1.85

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.85    ! albertel    4: # $Id: bridgetask.pm,v 1.84 2005/11/21 23:00:19 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') {
1.23      albertel   83: 		my $version=
                     84: 		    $Apache::lonhomework::results{'resource.version'}=
1.27      albertel   85: 		    ++$Apache::lonhomework::history{'resource.version'};
1.23      albertel   86: 		$Apache::lonhomework::results{"resource.$version.checkedin"}=
1.4       albertel   87: 		    $user.'@'.$domain;
1.23      albertel   88: 		$Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
1.22      albertel   89: 		    $slot_name;
1.28      albertel   90: 		foreach my $key (keys(%Apache::lonhomework::history)) {
                     91: 		    if ($key=~/^resource\.0\./) {
                     92: 			$Apache::lonhomework::results{$key}='';
                     93: 		    }
                     94: 		}
1.4       albertel   95: 		return 1;
1.81      albertel   96: 	    } elsif ($authenticated && $type eq 'problem') {
                     97: 		&Apache::lonxml::debug("authed #slot_name");
                     98: 		$Apache::lonhomework::results{"resource.0.checkedin"}=
                     99: 		    $user.'@'.$domain;
                    100: 		$Apache::lonhomework::results{"resource.0.checkedin.slot"}=
                    101: 		    $slot_name;
1.4       albertel  102: 	    }
                    103: 	}
                    104:     }
                    105:     return 0;
                    106: }
                    107: 
1.25      albertel  108: sub get_version {
1.29      albertel  109:     my ($version,$previous);
1.25      albertel  110:     if ($env{'form.previousversion'} && 
1.36      albertel  111: 	$env{'form.previousversion'} ne 'current' &&
1.25      albertel  112: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
1.29      albertel  113: 	$version=$env{'form.previousversion'};
                    114: 	$previous=1;
                    115:     } else {
                    116: 	$version=$Apache::lonhomework::history{'resource.version'};
                    117: 	$previous=0;
                    118:     }
                    119:     if (wantarray) {
                    120: 	return ($version,$previous);
1.25      albertel  121:     }
1.29      albertel  122:     return $version;
1.25      albertel  123: }
                    124: 
1.8       albertel  125: sub add_previous_version_button {
1.25      albertel  126:     my ($status)=@_;
1.8       albertel  127:     my $result;
1.29      albertel  128:     if ($Apache::lonhomework::history{'resource.version'} eq '') {
1.25      albertel  129: 	return '';
                    130:     }
1.29      albertel  131:     if ($Apache::lonhomework::history{'resource.version'} < 2 &&
                    132: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  133: 	return '';
                    134:     }
1.29      albertel  135:     my $version=&get_version();
                    136:     if ($env{'form.previousversion'} ne '' &&
                    137: 	$env{'form.previousversion'} eq $version) {
                    138: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
                    139: 	    "</h3>\n";
                    140:     }
                    141:     my @to_show;
                    142:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
                    143: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
                    144: 	    push(@to_show,$test_version);
                    145: 	}
                    146:     }
                    147:     my $list='<option>'.
                    148: 	join("</option>\n<option>",@to_show).
                    149: 	     "</option>\n";
1.36      albertel  150:     $list.='<option value="current">'.&mt('Current').'</option>';
1.29      albertel  151:     $result.='<form name="getprevious" method="POST" action="';
                    152:     my $uri=$env{'request.uri'};
                    153:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    154:     $result.=$uri.'">'.
                    155: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
                    156: <option>'.&mt('Pick one').'</option>
                    157: '.$list.'
                    158: </select>')."</form>";
1.8       albertel  159:     return $result;
                    160: }
                    161: 
1.13      albertel  162: sub add_grading_button {
1.59      albertel  163:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    164:     my $cnum=$env{'course.'.$cid.'.num'};
                    165:     my $cdom=$env{'course.'.$cid.'.domain'};
                    166:     my %sections;
                    167:     my $numsections=&Apache::loncommon::get_sections($cdom,$cnum,\%sections);
                    168:     my $size=5;
                    169:     if (scalar(keys(%sections)) < 3) {
                    170: 	$size=scalar(keys(%sections))+2;
                    171:     }
                    172:     my $sec_select = '<select multiple name="chosensections" size="'.$size.'">'."\n";
                    173:     $sec_select .= "<option value='all' selected='selected'>all</option>\n";
                    174:     foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
                    175: 	$sec_select .= "<option name=\"$sec\">$sec</option>\n";
                    176:     }
                    177:     $sec_select .= "<option value='none'>none</option></select>\n";
                    178:     
1.29      albertel  179:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  180: 	&mt("Get a submission to grade").'" />';
                    181:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.40      albertel  182:     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.34      albertel  183: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
1.59      albertel  184: 	$result.='<p>Specify a section: '.$sec_select.'</p>';
1.34      albertel  185: 	$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
                    186: 
                    187: 	$result.=' <input type="submit" name="reviewagrading" value="'.
                    188: 	    &mt("Select an entry from the grading queue").'" /> </p>'."\n";
                    189: 
                    190: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
                    191: 	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
1.32      albertel  192: 	$result.=' <input type="submit" name="reviewasubmission" value="'.
1.34      albertel  193: 	    &mt("Select an entry from the review queue").'" /> </p>'."\n";
1.49      albertel  194: 	$result.=' <input type="submit" name="regradeasubmission" value="'.
                    195: 	    &mt("Select a user to regrade.").'" /> </p>'."\n";
1.32      albertel  196:     }
1.13      albertel  197:     return $result;
                    198: }
                    199: 
1.22      albertel  200: sub add_request_another_attempt_button {
1.38      albertel  201:     my ($text)=@_;
                    202:     if (!$text) { $text="Request another attempt"; }
1.25      albertel  203:     my $result;
1.36      albertel  204:     my $symb=&Apache::lonnet::symbread();
1.37      albertel  205:     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
1.38      albertel  206:     my $action='get_reservation';
1.37      albertel  207:     if ($slot_name) {
1.38      albertel  208: 	$text="Change reservation.";
                    209: 	$action='change_reservation';
1.37      albertel  210: 	my $description=&Apache::slotrequest::get_description($slot_name,
                    211: 							      $slot);
                    212: 	$result.=(<<STUFF);
                    213: <p> Will be next available: $description </p>
                    214: STUFF
                    215:     }
1.38      albertel  216:     
                    217:     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
                    218:     $symb=&Apache::lonnet::escape($symb);
                    219:     $result.='<form method="POST" action="/adm/slotrequest">'.
                    220: 	'<input type="hidden" name="symb" value="'.$symb.'" />'.
                    221: 	'<input type="hidden" name="command" value="'.$action.'" />'.
                    222: 	'<input type="submit" name="requestattempt" value="'.
                    223: 	&mt($text).'" />'.
                    224: 	'</form>';
1.25      albertel  225:     return $result;
1.22      albertel  226: }
                    227: 
1.30      albertel  228: sub preserve_grade_info {
                    229:     my $result;
                    230:     # if we are viewing someone else preserve that info
                    231:     if (defined $env{'form.grade_symb'}) {
                    232: 	foreach my $field ('symb','courseid','domain','username') {
                    233: 	    $result .= '<input type="hidden" name="grade_'.$field.
                    234: 		'" value="'.$env{"form.grade_$field"}.'" />'."\n";
                    235: 	}
                    236:     }
                    237:     return $result;
                    238: }
                    239: 
1.53      albertel  240: sub style {
                    241:     return (<<STYLE);
                    242: <style type="text/css">
                    243: .fail, .pass, .neutral {
                    244:     position: relative;
                    245:     margin : 5px;
                    246:     margin-bottom :10px;
                    247:     padding : 4px;
                    248:     padding-left : 75px;
                    249: 	border : thin solid;
                    250:     font-weight : bolder;
                    251:     font-size: smaller;
                    252:     font-family: Arial;
                    253:     background-color : rgb(255,240,225);
                    254: }
                    255: 
                    256: .fail h4, .pass h4 {
                    257: 	position:absolute;
                    258: 	left: -4px;
                    259: 	top: -8px;
                    260: 	padding:2px;
                    261: 	margin:0;
                    262: 	background-color : rgb(255,240,225);
                    263: 	border : thin solid;
                    264: }
                    265: 
                    266: .fail {
                    267: 	color: red;
                    268: }
                    269: 
                    270: .pass {
                    271:     color : green;
                    272: }
                    273: 
                    274: .neutral {
                    275: 	color : blue;
                    276: }
                    277: 
                    278: .question {
                    279: 	border : thin solid black;
                    280: 	padding : 4px;
                    281: 	margin-bottom : 1em;
                    282: }
                    283: 
                    284: .grade {
                    285: 	font-size: x-large;
                    286: 	font-family: Arial;
                    287: 	position:absolute;
                    288: 	left: 5px;
                    289: 	top: -5px;
                    290: 	width: 70px;
                    291: }
                    292: 
                    293: div#feedback h1 {
                    294:     color : inherit;
                    295: }
                    296: </style>
                    297: STYLE
                    298: 
                    299: }
                    300: 
1.54      albertel  301: sub show_task {
                    302:     my ($status,$previous)=@_;
                    303:     if (!$previous && (
                    304: 		       ( $status eq 'CLOSED' ) ||
                    305: 		       ( $status eq 'BANNED') ||
                    306: 		       ( $status eq 'UNAVAILABLE') ||
                    307: 		       ( $status eq 'NOT_IN_A_SLOT') ||
                    308: 		       ( $status eq 'NEEDS_CHECKIN') ||
                    309: 		       ( $status eq 'WAITING_FOR_GRADE') ||
                    310: 		       ( $status eq 'INVALID_ACCESS') )) {
                    311: 	return 0;
                    312:     }
1.64      albertel  313:     if ($env{'form.donescreen'}) { return 0; }
1.54      albertel  314:     return 1;
                    315: }
                    316: 
                    317: sub internal_location {
                    318:     my ($id)=@_;
                    319:     return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
                    320: }
                    321: 
1.60      albertel  322: sub submission_time_stamp {
                    323:     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    324:     my $submissiontime;
                    325:     my $version=$Apache::lonhomework::history{'resource.version'};
                    326:     for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
                    327: 	if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})) {
                    328: 	    $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
                    329: 	}
                    330:     }
                    331:     my $result;
                    332:     if ($submissiontime) {
                    333: 	my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.checkedin.slot'};
                    334: 	my %slot=&Apache::lonnet::get_slot($slot_name);
                    335: 	my $diff = $slot{'endtime'} - $submissiontime;
1.71      albertel  336: 	my ($color,$when)=('#FF6666','after');
                    337: 	if ($diff > 0) { ($color,$when)=('#336600','before'); }
1.60      albertel  338: 	my $info;
                    339: 	if ($diff%60) { $info=($diff%60).' seconds'; }
                    340: 	$diff=int($diff/60);
                    341: 	if ($diff%60) { $info=($diff%60).' minutes '.$info; }
                    342: 	$diff=int($diff/60);
                    343: 	if ($diff) {    $info=$diff.' hours '.$info; }
                    344: 	$result='<p><font color="'.$color.'">'.
                    345: 	    &mt('Student submitted [_1] [_2] the deadline. 
                    346:                  (Submission was at [_3], end of period was [_4].)',
                    347: 		$info,$when,scalar(localtime($submissiontime)),
                    348: 		scalar(localtime($slot{'endtime'}))).
                    349: 		'</font></p>';
                    350:     }
                    351:     return $result;
                    352: }
                    353: 
1.70      albertel  354: sub webgrade_standard_info {
                    355:     my ($version)=&get_version();
                    356:     my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                    357:     my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
                    358:     my $file_list="<ul>\n";
                    359:     foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
                    360: 	my $file=$file_url.$partial_file;
                    361: 	$file=~s|/+|/|g;
                    362: 	&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1.73      albertel  363: 	$file_list.='<li><nobr><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
1.70      albertel  364: 	    &Apache::loncommon::icon($file).'" border=0"> '.$file.
                    365: 	    '</a></nobr></li>'."\n";
                    366:     }
                    367:     $file_list.="</ul>\n";
                    368: 
                    369:     my %lt=&Apache::lonlocal::texthash('done' => 'Done',
                    370: 				       'stop' => 'Stop',
                    371: 				       );
                    372: 				       
                    373:     my $result=<<INFO;
                    374: <div class="handininfo">
                    375:   <input type="submit" name="next" value="$lt{'done'}" />
                    376:   <input type="submit" name="stop" value="$lt{'stop'}" />
                    377:   $file_list
                    378: </div>
                    379: INFO
                    380:     return $result;
                    381: }
                    382: 
1.1       albertel  383: sub start_Task {
                    384:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    385: 
1.4       albertel  386:     my ($status,$accessmsg,$slot);
1.16      albertel  387:     if ($target ne 'webgrade') {
1.70      albertel  388: 	&Apache::structuretags::init_problem_globals('Task');
1.16      albertel  389: 	&Apache::structuretags::initialize_storage();
                    390: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.74      albertel  391: 	if ($env{'request.state'} eq 'construct') {
                    392: 	    &Apache::structuretags::setup_rndseed($safeeval);
                    393: 	}
1.16      albertel  394:     } 
                    395: 
1.4       albertel  396:     $Apache::lonhomework::parsing_a_task=1;
1.1       albertel  397:     #should get back a <html> or the neccesary stuff to start XML/MathML
                    398:     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
                    399: 	&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.16      albertel  400:     
1.74      albertel  401:     if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.13      albertel  402: 	if ($Apache::lonhomework::modifygrades) {
                    403: 	    $body_tag_start.='<form name="gradesubmission" method="POST" action="';
                    404: 	    my $uri=$env{'request.uri'};
                    405: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    406: 	    $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
1.38      albertel  407: 	    my $symb=&Apache::lonnet::symbread();
1.40      albertel  408: 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
                    409: 		$body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
                    410: 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
                    411: 		    '<input type="hidden" name="command" value="showslots" />'.
                    412: 		    '<input type="submit" name="requestattempt" value="'.
                    413: 		    &mt('Show Slot list').'" />'.
                    414: 		    '</form>';
                    415: 	    }
1.13      albertel  416: 	}
1.8       albertel  417:     }
1.74      albertel  418:     if ($target eq 'web' && $env{'request.state'} eq 'construct') {
                    419: 	$form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
                    420:     }
1.21      albertel  421:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  422: 	$target eq 'tex') {
1.29      albertel  423: 	my ($version,$previous)=&get_version();
1.14      albertel  424: 	($status,$accessmsg,my $slot_name,$slot) = 
1.81      albertel  425: 	    &Apache::lonhomework::check_slot_access('0','Task');
1.9       albertel  426: 	push(@Apache::inputtags::status,$status);
1.14      albertel  427: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  428: 	my $expression='$external::datestatus="'.$status.'";';
1.23      albertel  429: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
1.1       albertel  430: 	&Apache::run::run($expression,$safeeval);
                    431: 	&Apache::lonxml::debug("Got $status");
1.25      albertel  432: 	$body_tag_start.=&add_previous_version_button($status);
1.54      albertel  433: 	if (!&show_task($status,$previous)) {
1.1       albertel  434: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
                    435: 	    if ( $target eq "web" ) {
1.4       albertel  436: 		$result.= $head_tag_start.'</head>'.$body_tag_start;
1.74      albertel  437: 		if ($env{'request.state'} eq 'construct') {
                    438: 		    $result.=$form_tag_start;
                    439: 		}
1.4       albertel  440: 		my $msg;
1.1       albertel  441: 		if ($status eq 'UNAVAILABLE') {
                    442: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  443: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    444: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38      albertel  445: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  446: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    447: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    448: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  449: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    450: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.64      albertel  451: 		} elsif ($env{'form.donescreen'}) {
                    452: 		    my $title=&Apache::lonnet::gettitle();
1.67      albertel  453: 		    my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
                    454: 		    my $files='<ul><li>'.join('</li><li>',@files).'</li></ul>';
1.64      albertel  455: 		    $result.=<<DONESCREEN;
                    456: <h2>$title</h2>
                    457: <p> Files submitted: $files </p>
1.67      albertel  458: <p> You are now done with this Bridge Task </p>
1.64      albertel  459: <hr />
                    460: <p> <a href="/adm/logout">Logout</a> </p>
                    461: <p> <a href="/adm/roles">Change to a different course</a> </p>
                    462: DONESCREEN
1.1       albertel  463: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    464: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    465: 		}
                    466: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    467: 		    $msg.='The problem '.$accessmsg;
                    468: 		}
                    469: 		$result.=$msg.'<br />';
                    470: 	    } elsif ($target eq 'tex') {
                    471: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    472: 		if ($status eq 'UNAVAILABLE') {
                    473: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    474: 		} else {
                    475: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    476: 		}
1.22      albertel  477: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  478: 		if ($status eq 'NEEDS_CHECKIN') {
1.83      albertel  479: 		    if(&proctor_check_auth($slot_name,$slot,'Task')
                    480: 		       && defined($Apache::inputtags::slot_name)) {
1.77      albertel  481: 			my $result=&add_to_queue('gradingqueue',
1.82      albertel  482: 						 [$Apache::inputtags::slot_name]);
1.77      albertel  483: 			&Apache::lonxml::debug("add_to_queue said $result");
                    484: 		    }
1.4       albertel  485: 		}
1.1       albertel  486: 	    }
                    487: 	} elsif ($target eq 'web') {
                    488: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    489: 	    $result.="$head_tag_start<title>$name</title></head>
1.53      albertel  490:               $body_tag_start \n".&style();
1.36      albertel  491: 	    
1.57      albertel  492: 	    $result.=&preserve_grade_info();
                    493: 	    $result.=&internal_location();
1.36      albertel  494: 	    $result.=$form_tag_start.
                    495: 		'<input type="hidden" name="submitted" value="yes" />';
1.54      albertel  496: 	    &Apache::lonxml::startredirection();
1.1       albertel  497: 	}
1.21      albertel  498:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    499: 	      $target eq 'webgrade') {
1.32      albertel  500: 	my $webgrade='yes';
1.21      albertel  501: 	if ($target eq 'webgrade') {
1.32      albertel  502: 	    $result.=$head_tag_start.$body_tag_start;
1.49      albertel  503: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
                    504: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  505: 	}
1.33      albertel  506: 	# FIXME Blast! still need to reorg this, need to reshow the
                    507:         #       queue being reviewed once done with the grade pass...
                    508:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    509:         #       perhaps do a search if there is a key that is mine and if
                    510:         #       there isn't reshow the queue....
                    511: 	my ($todo,$status_code)=&get_key_todo($target);
                    512: 
                    513: 	if ($todo) {
                    514: 	    &setup_env_for_other_user($todo,$safeeval);
                    515: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    516: 	    $result.="\n".'<table><tr><td>Found '.
                    517: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    518: 	    $form_tag_start.=
                    519: 		'<input type="hidden" name="gradingkey" value="'.
                    520: 		&Apache::lonnet::escape($todo).'" />';
                    521: 	    $Apache::bridgetask::queue_key=$todo;
                    522: 	    &Apache::structuretags::initialize_storage();
                    523: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    524: 	    if ($target eq 'webgrade') {
1.49      albertel  525: 		#$result.='<br />After -'.&show_queue($env{'form.queue'});
1.33      albertel  526: 		$result.="\n".'<table width="100%" style="width:100%" border="1">';
                    527: 		if ($status_code eq 'selected') {
                    528: 		    $form_tag_start.=
                    529: 			'<input type="hidden" name="queuemode" value="selected" />';
                    530: 		}
                    531: 	    }
1.15      albertel  532: 	} else {
1.33      albertel  533: 	    if ($target eq 'webgrade') {
                    534: 		$result.="\n";
1.81      albertel  535: 		my $back='<p><a href="/adm/flip?postdata=return:">'.
                    536: 		    &mt('Return to resource').'</a></p>';
1.33      albertel  537: 		if      ($status_code eq 'stop') {
1.81      albertel  538: 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
1.33      albertel  539: 		} elsif ($status_code eq 'lock_failed') {
1.81      albertel  540: 		    $result.='<b>'.&mt("Failed to lock the request record.")
                    541: 			.'</b>'.$back;
1.33      albertel  542: 		} elsif ($status_code eq 'unlock') {
1.81      albertel  543: 		    $result.='<b>'.&mt("Unlocked the requested record.")
                    544: 			.'</b>'.$back;
1.33      albertel  545: 		    $result.=&show_queue($env{'form.queue'},1);
                    546: 		} elsif ($status_code eq 'show_list') {
                    547: 		    $result.=&show_queue($env{'form.queue'},1);
1.49      albertel  548: 		} elsif ($status_code eq 'select_user') {
                    549: 		    $result.=&select_user();
1.33      albertel  550: 		} else {
1.81      albertel  551: 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
1.32      albertel  552: 		}
1.21      albertel  553: 	    }
1.33      albertel  554: 	    $webgrade='no';
                    555: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
1.32      albertel  556: 	}
                    557: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
1.61      albertel  558: 	    if ($webgrade eq 'yes') {
                    559: 		$result.=&submission_time_stamp();
                    560: 	    }
1.32      albertel  561: 	    $result.=$form_tag_start;
                    562: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    563: 		$webgrade.'" />';
                    564: 	    $result.='<input type="hidden" name="queue" value="'.
                    565: 		$env{'form.queue'}.'" />';
1.52      albertel  566: 	    if ($env{'form.regrade'}) {
                    567: 		$result.='<input type="hidden" name="regrade" value="'.
                    568: 		    $env{'form.regrade'}.'" />';
                    569: 	    }
1.62      albertel  570: 	    if ($env{'form.chosensections'}) {
                    571: 		my @chosen_sections=
                    572: 		    &Apache::loncommon::get_env_multiple('form.chosensections');
                    573: 		foreach my $sec (@chosen_sections) {
                    574: 		    $result.='<input type="hidden" name="chosensections" 
                    575:                                value="'.$sec.'" />';
                    576: 		}
                    577: 	    }
1.70      albertel  578: 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
1.15      albertel  579: 	}
1.74      albertel  580:     } elsif ($target eq 'edit') {
                    581: 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
                    582: 	    &Apache::structuretags::problem_edit_header();
                    583: 	$Apache::lonxml::warnings_error_header=
                    584: 	    &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 />";
                    585: 	my $temp=&Apache::edit::insertlist($target,$token);
                    586: 	$result.=$temp;
1.1       albertel  587:     } else {
                    588: 	# page_start returned a starting result, delete it if we don't need it
                    589: 	$result = '';
                    590:     }
                    591:     return $result;
                    592: }
                    593: 
1.32      albertel  594: sub get_key_todo {
                    595:     my ($target)=@_;
                    596:     my $todo;
1.33      albertel  597: 
                    598:     if (defined($env{'form.reviewasubmission'})) {
1.54      albertel  599: 	&Apache::lonxml::debug("review a submission....");
1.33      albertel  600: 	$env{'form.queue'}='reviewqueue';
                    601: 	return (undef,'show_list');
                    602:     }
                    603: 
                    604:     if (defined($env{'form.reviewagrading'})) {
                    605: 	&Apache::lonxml::debug("review a grading....");
                    606: 	$env{'form.queue'}='gradingqueue';
                    607: 	return (undef,'show_list');
                    608:     }
                    609: 
1.49      albertel  610:     if (defined($env{'form.regradeasubmission'})) {
                    611: 	&Apache::lonxml::debug("regrade a grading....");
                    612: 	$env{'form.queue'}='none';
                    613: 	return (undef,'select_user');
                    614:     }
                    615: 
1.32      albertel  616:     my $queue=$env{'form.queue'};
1.33      albertel  617: 
1.32      albertel  618:     if (!defined($queue)) {
                    619: 	$env{'form.queue'}=$queue='gradingqueue';
                    620:     }
1.33      albertel  621: 
1.32      albertel  622:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  623: 
1.49      albertel  624:     if ($env{'form.queue'} eq 'none') {
                    625: 	if (defined($env{'form.gradingkey'})) {
                    626: 	    if ($target eq 'webgrade') {
                    627: 		if ($env{'form.stop'}) {
                    628: 		    return (undef,'stop');
                    629: 		} elsif ($env{'form.next'}) {
1.59      albertel  630: 		    return (undef,'select_user');
1.49      albertel  631: 		}
                    632: 	    }
                    633: 	    return ($gradingkey,'selected');
                    634: 	} else {
1.59      albertel  635: 	    return (undef,'select_user');
1.49      albertel  636: 	}
                    637:     }
1.32      albertel  638:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  639: 	&& !defined($env{'form.gradingaction'}) 
                    640: 	&& $env{'form.queuemode'} eq 'selected') {
                    641: 	
                    642: 	my $who=&queue_key_locked($queue,$gradingkey);
                    643: 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    644: 	if ($who eq $me) {
                    645: 	    &Apache::lonxml::debug("Found a key was given to me");
                    646: 	    return ($gradingkey,'selected');
                    647: 	} else {
                    648: 	    return (undef,'show_list');
                    649: 	}
                    650: 
                    651:     }
                    652: 
                    653:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    654: 	if ($env{'form.gradingaction'} eq 'resume') {
                    655: 	    delete($env{'form.gradingaction'});
                    656: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  657: 	    return ($gradingkey);
1.33      albertel  658: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    659: 	    &Apache::lonxml::debug("Unlocking a key ".
                    660: 				     &check_queue_unlock($queue,$gradingkey,1));
                    661: 	    return (undef,'unlock');
                    662: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    663: 	    &Apache::lonxml::debug("Locking a key");
                    664: 	    if (&lock_key($queue,$gradingkey)) {
                    665: 		&Apache::lonxml::debug("Success $queue");
                    666: 		return ($gradingkey);
                    667: 	    }
                    668: 	    &Apache::lonxml::debug("Failed $queue");
                    669: 	    return (undef,'lock_failed');
1.32      albertel  670: 	}
                    671:     }
1.33      albertel  672: 
                    673:     if ($env{'form.queuemode'} ne 'selected') {
                    674: 	# don't get something new from the queue if they hit the stop button
                    675:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    676: 	    && !$env{'form.gradingaction'}) {
                    677: 	    &Apache::lonxml::debug("Getting anew $queue");
                    678: 	    return (&get_from_queue($queue));
                    679: 	} else {
                    680: 	    return (undef,'stop');
                    681: 	}
1.32      albertel  682:     }
1.33      albertel  683:     return (undef,undef)
1.32      albertel  684: }
1.1       albertel  685: sub end_Task {
                    686:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    687:     my $result='';
                    688:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  689:     my ($version,$previous)=&get_version();
1.1       albertel  690:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  691: 	$target eq 'tex') {
1.69      albertel  692: 	if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
1.1       albertel  693: 	    if ($target eq 'web') {
1.54      albertel  694: 		if (&show_task($status,$previous)) {
                    695: 		    $result.=&Apache::lonxml::endredirection();
                    696: 		}
1.64      albertel  697: 		if ($status eq 'CAN_ANSWER' && !$previous && 
                    698: 		    !$env{'form.donescreen'}) {
1.15      albertel  699: 		    $result.="\n".'<table border="1">'.
1.28      albertel  700: 			&Apache::inputtags::file_selector("$version.0",
                    701: 							  "bridgetask","*",
1.46      albertel  702: 							  'portfolioonly',
                    703: 							  '
                    704: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    705: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  706: 							  "</table>";
1.77      albertel  707: 		}
1.78      albertel  708: 		if (!$previous && $status ne 'SHOW_ANSWER' &&
                    709: 		    &show_task($status,$previous)) {
1.9       albertel  710: 		    $result.=&Apache::inputtags::gradestatus('0');
1.64      albertel  711: 		    $result.='</form>';
                    712: 		    $result.=<<DONEBUTTON;
                    713: <form method="POST">
                    714:    <input type="hidden" name="donescreen" value="1" />
                    715:    <input type="submit" value="Done" />
                    716: </form>
                    717: DONEBUTTON
1.77      albertel  718:                 }
1.56      albertel  719: 		if (&show_task($status,$previous) &&
                    720: 		    $Apache::lonhomework::history{"resource.$version.status"} =~ /^(pass|fail)$/) {
1.54      albertel  721: 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.status"};
                    722: 		    my $title=&Apache::lonnet::gettitle();
1.80      albertel  723: 
                    724: 		    my $slot_name=
                    725: 			$Apache::lonhomework::history{"resource.$version.checkedin.slot"};
                    726: 		    my %slot=&Apache::lonnet::get_slot($slot_name);
1.55      albertel  727: 		    my $start_time=
                    728: 			&Apache::lonlocal::locallocaltime($slot{'starttime'});
1.54      albertel  729: 
1.80      albertel  730: 		    my $status = "\n<div class='$bt_status'>\n";
1.54      albertel  731: 		    
                    732: 		    if ($bt_status eq 'pass')  {
                    733: 			$status.='<h2>You passed the '.$title.' given on '.
1.80      albertel  734: 			    $start_time.'</h2>';
1.54      albertel  735: 		    }
                    736: 		    if ($bt_status eq 'fail')  {
                    737: 			$status.='<h2>You did not pass the '.$title.' given on '.
1.80      albertel  738: 			    $start_time.'</h2>';
1.54      albertel  739: 			if (!$previous) {
                    740: 			    $status.=&add_request_another_attempt_button();
                    741: 			}
                    742: 		    }
                    743: 		    my $man_count=0;
                    744: 		    my $opt_count=0;
                    745: 		    my $opt_passed=0;
                    746: 		    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    747: 			if ($Apache::bridgetask::dimensionmandatory{$dim_id}
                    748: 			    eq 'N') {
                    749: 			    $opt_count++;
                    750: 			    if ($Apache::lonhomework::history{"resource.$version.$dim_id.status"} eq 'pass') {
                    751: 				$opt_passed++;
                    752: 			    }
                    753: 			} else {
                    754: 			    $man_count++;
                    755: 			}
                    756: 		    }
                    757: 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
                    758: 							 $parstack,$safeeval);
                    759: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                    760: 		    $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components on the bridge task.',$man_count,$opt_req,$opt_count)."</p></div>\n";
                    761: 
                    762: 		    my $internal_location=&internal_location();
                    763: 		    $result=~s/\Q$internal_location\E/$status/;
                    764: 		}
1.13      albertel  765: 	    } 
                    766: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  767: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    768: 	    }
                    769: 	}
1.29      albertel  770: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  771: 	    my $award='SUBMITTED';
1.28      albertel  772: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  773: 						    'portfiles',\$award);
1.14      albertel  774: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  775: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    776: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    777: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    778: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    779: 
                    780: 		$Apache::lonhomework::results{"resource.0.award"}=
                    781: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    782: 		    $award;
1.51      albertel  783: 		$Apache::lonhomework::results{"resource.0.submission"}=
                    784: 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
1.64      albertel  785: 	    } else {
                    786: 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
1.77      albertel  787: 		$award = '';
1.10      albertel  788: 	    }
1.4       albertel  789: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    790: 	    &Apache::structuretags::finalize_storage();
1.83      albertel  791: 	    if ($award eq 'SUBMITTED'
                    792: 		&& defined($Apache::inputtags::slot_name)) {
1.82      albertel  793: 		&add_to_queue('gradingqueue',[$Apache::inputtags::slot_name]);
1.14      albertel  794: 	    }
1.79      albertel  795: 	} elsif ($Apache::lonhomework::results{'INTERNAL_store'}) {
                    796: 	    &Apache::structuretags::finalize_storage();
1.1       albertel  797: 	}
1.32      albertel  798: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  799: 	    my $optional_required=
                    800: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    801: 					   $safeeval);
                    802: 	    my $optional_passed=0;
                    803: 	    my $mandatory_failed=0;
                    804: 	    my $ungraded=0;
                    805: 	    my $review=0;   
1.21      albertel  806: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  807: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    808: 		my $status=
1.25      albertel  809: 		    $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
1.20      albertel  810: 		my $mandatory=
                    811: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    812: 		if ($status eq 'pass') {
                    813: 		    if (!$mandatory) { $optional_passed++; }
                    814: 		} elsif ($status eq 'fail') {
                    815: 		    if ($mandatory) { $mandatory_failed++; }
                    816: 		} elsif ($status eq 'ungraded') {
                    817: 		    $ungraded++;
                    818: 		} elsif ($status eq 'review') {
                    819: 		    $review++;
1.49      albertel  820: 		} else {
                    821: 		    $ungraded++;
                    822: 		}
1.20      albertel  823: 	    }
                    824: 	    if ($optional_passed < $optional_required) {
                    825: 		$mandatory_failed++;
                    826: 	    }
1.21      albertel  827: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
                    828: 	    $Apache::lonhomework::results{'resource.grader'}=
1.20      albertel  829: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    830: 	    if ($review) {
1.25      albertel  831: 		$Apache::lonhomework::results{"resource.$version.status"}='review';
1.33      albertel  832: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    833: 		    &check_queue_unlock($env{'form.queue'});
                    834: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    835: 		} else {
1.49      albertel  836: 		    &move_between_queues($env{'form.queue'},'reviewqueue');
1.33      albertel  837: 		}
1.20      albertel  838: 	    } elsif ($ungraded) {
1.25      albertel  839: 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
1.49      albertel  840: 		if ($env{'form.queue'} eq 'reviewqueue' ||
                    841: 		    $env{'form.queue'} eq 'none' ) {
1.33      albertel  842: 		    &Apache::lonxml::debug("moving back.");
1.49      albertel  843: 		    &move_between_queues($env{'form.queue'},'gradingqueue');
1.33      albertel  844: 		} else {
                    845: 		    &check_queue_unlock($env{'form.queue'});
                    846: 		}
1.20      albertel  847: 	    } elsif ($mandatory_failed) {
1.25      albertel  848: 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
                    849: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    850: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    851: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel  852: 		&remove_from_queue($env{'form.queue'}); 
                    853: 
                    854: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  855: 		
                    856: 		if ($env{'form.regrade'} ne 'yes') {
                    857: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    858: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    859: 		    &Apache::grades::version_portfiles(
                    860: 						       \%Apache::lonhomework::results,
                    861: 						       ["$version.0.bridgetask"],$courseid,
                    862: 						       $symb,$udom,$uname,
                    863: 						       ["$version.0.bridgetask"]);
                    864: 		}
1.20      albertel  865: 	    } else {
1.25      albertel  866: 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
                    867: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    868: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    869: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  870: 		&remove_from_queue($env{'form.queue'});
1.39      albertel  871: 
                    872: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  873: 		if ($env{'form.regrade'} ne 'yes') {
                    874: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    875: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    876: 		    &Apache::grades::version_portfiles(
                    877: 						       \%Apache::lonhomework::results,
                    878: 						       ["$version.0.bridgetask"],$courseid,
                    879: 						       $symb,$udom,$uname,
                    880: 						       ["$version.0.bridgetask"]);
                    881: 		}
1.20      albertel  882: 	    }
1.26      albertel  883: 	    $Apache::lonhomework::results{"resource.status"}=
                    884: 		$Apache::lonhomework::results{"resource.$version.status"};
1.28      albertel  885: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  886: 		$Apache::lonhomework::results{"resource.0.award"}=
1.50      albertel  887: 		    $Apache::lonhomework::results{"resource.$version.0.award"};
1.26      albertel  888: 		$Apache::lonhomework::results{"resource.0.awarded"}=
1.50      albertel  889: 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
1.26      albertel  890: 		$Apache::lonhomework::results{"resource.0.solved"}=
1.50      albertel  891: 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
1.25      albertel  892: 	    }
1.21      albertel  893: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  894: 	}
1.15      albertel  895:     } elsif ($target eq 'webgrade') {
1.18      albertel  896: 	$result.="</table>\n<hr />";
1.20      albertel  897: 	#$result.='<input type="submit" name="next" value="'.
                    898: 	#    &mt('Save &amp; Next').'" /> ';
                    899: 	#$result.='<input type="submit" name="end" value="'.
                    900: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    901: 	#$result.='<input type="submit" name="throwaway" value="'.
                    902: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    903: 	#$result.='<input type="submit" name="save" value="'.
                    904: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  905: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  906:     } elsif ($target eq 'meta') {
1.70      albertel  907: 	$result.=&Apache::response::meta_package_write('Task');
1.77      albertel  908:         $result.=&Apache::response::meta_stores_write('solved','string',
                    909: 						      'Problem Status');
                    910: 	$result.=&Apache::response::meta_stores_write('tries','int_zeropos',
                    911: 						      'Number of Attempts');
                    912: 	$result.=&Apache::response::meta_stores_write('awarded','float',
                    913: 						      'Partial Credit Factor');
                    914: 	$result.=&Apache::response::meta_stores_write('status','string',
                    915: 						      'Bridge Task Status');
1.1       albertel  916:     }
1.4       albertel  917:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  918:     return $result;
                    919: }
                    920: 
1.31      albertel  921: sub move_between_queues {
                    922:     my ($src_queue,$dest_queue)=@_;
1.49      albertel  923:     my $cur_data;
                    924:     if ($src_queue ne 'none') {
                    925: 	$cur_data=&get_queue_data($src_queue);
                    926: 	if (!$cur_data) { return 'not_exist'; }
                    927:     } else {
                    928: 	$cur_data = ['none'];
                    929:     }
1.82      albertel  930:     my $result=&add_to_queue($dest_queue,[$cur_data->[0]]);
1.31      albertel  931:     if ($result ne 'ok') {
                    932: 	return $result;
                    933:     }
                    934:     &check_queue_unlock($src_queue);
                    935:     return &remove_from_queue($src_queue);
1.21      albertel  936: }
                    937: 
                    938: sub check_queue_unlock {
1.32      albertel  939:     my ($queue,$key,$allow_not_me)=@_;
1.49      albertel  940:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel  941:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel  942:     if (!defined($key)) {
                    943: 	$key="$symb\0queue\0$uname\@$udom";
                    944:     }
1.30      albertel  945:     my $cnum=$env{'course.'.$cid.'.num'};
                    946:     my $cdom=$env{'course.'.$cid.'.domain'};
                    947:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    948:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                    949:     if  ($who eq $me) {
1.32      albertel  950: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                    951:     } elsif ($allow_not_me) {
1.33      albertel  952: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel  953: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel  954:     }
1.32      albertel  955:     return 'not_owner';
1.21      albertel  956: }
                    957: 
                    958: sub remove_from_queue {
1.30      albertel  959:     my ($queue)=@_;
1.49      albertel  960:     if ($queue eq 'none') { return 'ok'; }
1.27      albertel  961:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    962:     my $cnum=$env{'course.'.$cid.'.num'};
                    963:     my $cdom=$env{'course.'.$cid.'.domain'};
                    964:     my $key="$symb\0queue\0$uname\@$udom";
                    965:     my @keys=($key,"$key\0locked");
1.31      albertel  966:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel  967: }
                    968: 
1.16      albertel  969: sub setup_env_for_other_user {
                    970:     my ($queue_key,$safeeval)=@_;
                    971:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel  972:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel  973:     $env{'form.grade_symb'}=$symb;
                    974:     $env{'form.grade_domain'}=$udom;
                    975:     $env{'form.grade_username'}=$uname;
                    976:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                    977:     &Apache::lonxml::initialize_rndseed($safeeval);
                    978: }
                    979: 
1.31      albertel  980: sub get_queue_data {
                    981:     my ($queue)=@_;
                    982:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    983:     my $cnum=$env{'course.'.$cid.'.num'};
                    984:     my $cdom=$env{'course.'.$cid.'.domain'};
                    985:     my $todo="$symb\0queue\0$uname\@$udom";
                    986:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                    987:     if ($key eq $todo && ref($value)) {
                    988: 	return $value;
                    989:     }
                    990:     return undef;
                    991: }
                    992: 
1.84      albertel  993: 
1.49      albertel  994: sub check_queue_for_key {
1.84      albertel  995:     my ($cdom,$cnum,$queue,$todo)=@_;
                    996: 
1.49      albertel  997:     my %results=
                    998: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
                    999:     
                   1000:     if (exists($results{$todo}) && ref($results{$todo})) {
                   1001: 	if (defined($results{"$todo\0locked"})) {
                   1002: 	    return 'locked';
                   1003: 	}
1.58      albertel 1004: 	my $slot=$results{$todo}->[0];
                   1005: 	my %slot_data=&Apache::lonnet::get_slot($slot);
                   1006: 	if ($slot_data{'endtime'} > time) { 
                   1007: 	    return 'in_progress';
                   1008: 	}
1.49      albertel 1009: 	return 'enqueued';
                   1010:     }
                   1011:     return undef;
                   1012: }
                   1013: 
1.14      albertel 1014: sub add_to_queue {
1.82      albertel 1015:     my ($queue,$user_data)=@_;
1.49      albertel 1016:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel 1017:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.82      albertel 1018:     if (!$cid || $env{'request.state'} eq 'construct') {
                   1019: 	return 'no_queue';
                   1020:     }
1.14      albertel 1021:     my $cnum=$env{'course.'.$cid.'.num'};
                   1022:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1023:     my %data;
1.82      albertel 1024:     $data{"$symb\0queue\0$uname\@$udom"}=$user_data;
1.83      albertel 1025:     return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
1.14      albertel 1026: }
                   1027: 
                   1028: sub show_queue {
1.32      albertel 1029:     my ($queue,$with_selects)=@_;
1.14      albertel 1030:     my $result;
                   1031:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1032:     my $cnum=$env{'course.'.$cid.'.num'};
                   1033:     my $cdom=$env{'course.'.$cid.'.domain'};
1.59      albertel 1034: 
                   1035:     my @chosen_sections=
                   1036: 	&Apache::loncommon::get_env_multiple('form.chosensections');
                   1037:     &Apache::grades::init_perm();
                   1038:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
                   1039:     &Apache::grades::reset_perm();
1.63      albertel 1040:     if (!(grep(/^all$/,@chosen_sections))) {
                   1041: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1042: 	    '</tt>.</p> '."\n";
                   1043:     }
1.59      albertel 1044: 
1.16      albertel 1045:     my $regexp="^$symb\0";
1.30      albertel 1046:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel 1047:     my ($tmp)=%queue;
                   1048:     if ($tmp=~/^error: 2 /) {
1.33      albertel 1049: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel 1050:     }
1.33      albertel 1051:     $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
1.32      albertel 1052:     if ($with_selects) { $result.="<th></th>"; }
                   1053:     $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
1.14      albertel 1054:     foreach my $key (sort(keys(%queue))) {
1.59      albertel 1055: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1056: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
1.32      albertel 1057: 	if ($key=~/locked$/ && !$with_selects) {
1.16      albertel 1058: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel 1059: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel 1060: 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
1.32      albertel 1061: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.16      albertel 1062: 	    my ($symb,undef) = split("\0",$key);
                   1063: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel 1064: 	    $result.="<tr><td>$title</td><td></td>";
1.16      albertel 1065: 	    $result.='<td>last queue modification time</td><td>'.
                   1066: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel 1067: 	} elsif ($key!~/(timestamp|locked)$/) {
1.16      albertel 1068: 	    my $title=&Apache::lonnet::gettitle($symb);
1.32      albertel 1069: 	    $result.="<tr>";
1.35      albertel 1070: 	    my $slot=$queue{$key}->[0];
                   1071: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel 1072: 	    if ($with_selects) {
                   1073: 		my $ekey=&Apache::lonnet::escape($key);
                   1074: 		my ($action,$description)=('select',&mt('Select'));
                   1075: 		if (exists($queue{"$key\0locked"})) {
                   1076: 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1077: 		    if ($me eq $queue{"$key\0locked"}) {
                   1078: 			($action,$description)=('resume',&mt('Resume'));
                   1079: 		    } else {
                   1080: 			($action,$description)=('unlock',&mt('Unlock'));
                   1081: 		    }
                   1082: 		}
1.62      albertel 1083: 		my $seclist;
                   1084: 		foreach my $sec (@chosen_sections) {
                   1085: 		    $seclist.='<input type="hidden" name="chosensections" 
                   1086:                                value="'.$sec.'" />';
                   1087: 		}
1.35      albertel 1088: 		if (time > $slot_data{'endtime'}) {
                   1089: 		    $result.=(<<FORM);
1.32      albertel 1090: <td>
                   1091: <form method="POST">
                   1092:  <input type="hidden" name="gradingkey" value="$ekey" />
                   1093:  <input type="hidden" name="queue" value="$queue" />
                   1094:  <input type="hidden" name="gradingaction" value="$action" />
                   1095:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel 1096:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel 1097:  <input type="submit" name="submit" value="$description" />
1.62      albertel 1098:  $seclist
1.32      albertel 1099: </form>
                   1100: </td>
                   1101: FORM
1.35      albertel 1102: 
                   1103:                 } else {
                   1104: 		    $result.='<td>'.&mt("In Progress").'</td>'
                   1105: 		}
1.32      albertel 1106: 	    }
                   1107: 	    $result.="<td>$title</td><td>$uname</td>";
1.27      albertel 1108: 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1.20      albertel 1109: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                   1110: 		"</td></tr>";
1.16      albertel 1111: 	}
1.14      albertel 1112:     }
1.15      albertel 1113:     $result.="</table><hr />\n";
1.14      albertel 1114:     return $result;
                   1115: }
                   1116: 
1.34      albertel 1117: sub get_queue_counts {
                   1118:     my ($queue)=@_;
                   1119:     my $result;
                   1120:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1121:     my $cnum=$env{'course.'.$cid.'.num'};
                   1122:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1123:     my $regexp="^$symb\0";
                   1124:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1125:     my ($tmp)=%queue;
                   1126:     if ($tmp=~/^error: 2 /) {
                   1127: 	return (0,0,0);
                   1128:     }
                   1129:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
                   1130:     foreach my $key (sort(keys(%queue))) {
                   1131: 	if ($key=~/locked$/) {
                   1132: 	    $locks++;
                   1133: 	} elsif ($key=~/timestamp$/) {
                   1134: 	    #ignore
                   1135: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1136: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1137: 	    $entries++;
                   1138: 	    my $slot=$queue{$key}->[0];
                   1139: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1140: 	    if (time > $slot_data{'endtime'}) {
                   1141: 		$ready_to_grade++;
                   1142: 	    }
                   1143: 	}
                   1144:     }
                   1145:     return ($entries,$ready_to_grade,$locks);
                   1146: }
                   1147: 
1.49      albertel 1148: sub encode_queue_key {
                   1149:     my ($symb,$udom,$uname)=@_;
                   1150:     return "$symb\0queue\0$uname\@$udom";
                   1151: }
                   1152: 
1.14      albertel 1153: sub decode_queue_key {
                   1154:     my ($key)=@_;
                   1155:     my ($symb,undef,$user) = split("\0",$key);
                   1156:     my ($uname,$udom) = split('@',$user);
                   1157:     return ($symb,$uname,$udom);
                   1158: }
                   1159: 
                   1160: sub queue_key_locked {
1.30      albertel 1161:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel 1162:     if (!defined($cdom) || !defined($cnum)) {
                   1163: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1164: 	$cnum=$env{'course.'.$cid.'.num'};
                   1165: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1166:     }
1.14      albertel 1167:     my ($key_locked,$value)=
1.30      albertel 1168: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel 1169:     if ($key_locked eq "$key\0locked") {
                   1170: 	return $value;
                   1171:     }
                   1172:     return undef;
                   1173: }
                   1174: 
                   1175: sub pick_from_queue_data {
1.30      albertel 1176:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
                   1177:     foreach my $key (keys(%$queuedata)) {
1.68      albertel 1178: 	if ($key =~ /\0locked$/) { next; }
                   1179: 	if ($key =~ /\0timestamp$/) { next; }
1.14      albertel 1180: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                   1181: 	if ($check_section) {
                   1182: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel 1183: 	    if ($section eq $check_section) {
1.33      albertel 1184: 		&Apache::lonxml::debug("my sec");
1.15      albertel 1185: 		next;
                   1186: 	    }
1.14      albertel 1187: 	}
1.30      albertel 1188: 	my $slot=$queuedata->{$key}[0];
1.14      albertel 1189: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel 1190: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel 1191: 	    &Apache::lonxml::debug("not time");
1.15      albertel 1192: 	    next;
                   1193: 	}
1.30      albertel 1194: 	if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
1.33      albertel 1195: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel 1196: 	    next;
                   1197: 	}
1.14      albertel 1198: 	return $key;
                   1199:     }
                   1200:     return undef;
                   1201: }
                   1202: 
1.15      albertel 1203: sub find_mid_grade {
1.30      albertel 1204:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel 1205:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel 1206:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1207:     if ($todo) {
1.30      albertel 1208: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel 1209: 	if ($who eq $me) { return $todo; }
                   1210:     }
                   1211:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel 1212:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel 1213:     foreach my $key (keys(%locks)) {
                   1214: 	my $who=$locks{$key};
                   1215: 	if ($who eq $me) {
                   1216: 	    $todo=$key;
                   1217: 	    $todo=~s/\0locked$//;
                   1218: 	    return $todo;
                   1219: 	}
                   1220:     }
                   1221:     return undef;
                   1222: }
                   1223: 
1.32      albertel 1224: sub lock_key {
                   1225:     my ($queue,$todo)=@_;
                   1226:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1227:     my (undef,$cid)=&Apache::lonxml::whichuser();
                   1228:     my $cnum=$env{'course.'.$cid.'.num'};
                   1229:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1230:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                   1231: 					$cdom,$cnum);
1.33      albertel 1232:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel 1233:     if ($success eq 'ok') {
                   1234: 	return 1;
                   1235:     }
                   1236:     return 0;
                   1237: }
                   1238: 
1.85    ! albertel 1239: sub get_users_in_queue {
        !          1240:     my ($queue,$symb,$cdom,$cnum) = @_;
        !          1241:     if (!defined($cdom) || !defined($cnum)) {
        !          1242: 	my (undef,$cid)=&Apache::lonxml::whichuser();
        !          1243: 	$cnum=$env{'course.'.$cid.'.num'};
        !          1244: 	$cdom=$env{'course.'.$cid.'.domain'};
        !          1245:     }
        !          1246:     my $regexp="^$symb\0";
        !          1247:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
        !          1248:     my ($tmp)=%queue;
        !          1249:     if ($tmp=~/^error: 2 /) { return; }
        !          1250:     my @users;
        !          1251:     foreach my $key (sort(keys(%queue))) {
        !          1252: 	next if ($key=~/locked$/);
        !          1253: 	next if ($key=~/timestamp$/);
        !          1254: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
        !          1255: 	push(@users,"$uname:$udom");
        !          1256:     }
        !          1257:     return @users;
        !          1258: }
        !          1259: 
1.14      albertel 1260: sub get_from_queue {
1.30      albertel 1261:     my ($queue)=@_;
1.14      albertel 1262:     my $result;
                   1263:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1264:     my $cnum=$env{'course.'.$cid.'.num'};
                   1265:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel 1266:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel 1267:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel 1268:     if ($todo) { return $todo; }
1.14      albertel 1269:     while (1) {
                   1270: 	my $starttime=time;
1.83      albertel 1271: 	&Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
                   1272: 			      $cdom,$cnum);
1.33      albertel 1273: 	&Apache::lonxml::debug("$starttime");
1.14      albertel 1274: 	my $regexp="^$symb\0queue\0";
1.30      albertel 1275: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel 1276: 	#make a pass looking for a user _not_ in my section
1.14      albertel 1277: 	if ($env{'request.course.sec'}) {
1.33      albertel 1278: 	    &Apache::lonxml::debug("sce");
1.30      albertel 1279: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1280: 					\%queue,$cdom,$cnum);
1.33      albertel 1281: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel 1282: 	}
1.33      albertel 1283: 	# no one _not_ in our section so look for any user that is
                   1284: 	# ready for grading
1.14      albertel 1285: 	if (!$todo) {
1.33      albertel 1286: 	    &Apache::lonxml::debug("no sce");
1.31      albertel 1287: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1288: 					\%queue,$cdom,$cnum);
1.33      albertel 1289: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel 1290: 	}
                   1291: 	# no user to grade 
                   1292: 	if (!$todo) { last; }
1.33      albertel 1293: 	&Apache::lonxml::debug("got $todo");
1.14      albertel 1294: 	# otherwise found someone so lets try to lock them
1.32      albertel 1295: 	# unless someone else already picked them
                   1296: 	if (!&lock_key($queue,$todo)) { next; }
1.14      albertel 1297: 	my (undef,$endtime)=
1.30      albertel 1298: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel 1299: 				 $cdom,$cnum);
1.33      albertel 1300: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel 1301: 	# someone else already modified the queue, 
                   1302: 	# perhaps our picked user wass already fully graded between
                   1303: 	# when we picked him and when we locked his record? so lets
                   1304: 	# double check.
                   1305: 	if ($endtime != $starttime) {
                   1306: 	    my ($key,$value)=
1.30      albertel 1307: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel 1308: 				     $cdom,$cnum);
1.33      albertel 1309: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel 1310: 	    if ($key eq $todo && ref($value)) {
                   1311: 	    } else {
1.30      albertel 1312: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel 1313: 				     $cdom,$cnum);
1.33      albertel 1314: 		&Apache::lonxml::debug("del");
1.14      albertel 1315: 		next;
                   1316: 	    }
                   1317: 	}
1.33      albertel 1318: 	&Apache::lonxml::debug("last $todo");
1.14      albertel 1319: 	last;
                   1320:     }
                   1321:     return $todo;
                   1322: }
                   1323: 
1.49      albertel 1324: sub select_user {
                   1325:     my ($symb,$cid)=&Apache::lonxml::whichuser();
                   1326: 
1.59      albertel 1327:     my @chosen_sections=
                   1328: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.49      albertel 1329:     &Apache::grades::init_perm();
1.59      albertel 1330:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
1.49      albertel 1331:     &Apache::grades::reset_perm();
1.63      albertel 1332:     
                   1333:     my $result;
                   1334:     if (!(grep(/^all$/,@chosen_sections))) {
                   1335: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1336: 	    '</tt>.</p> '."\n";
                   1337:     }
                   1338:     $result.='<table border="1">';
1.49      albertel 1339: 
                   1340:     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
                   1341: 	my ($uname,$udom) = split(/:/,$student);
1.59      albertel 1342: 	
1.84      albertel 1343: 	my $cnum=$env{'course.'.$cid.'.num'};
                   1344: 	my $cdom=$env{'course.'.$cid.'.domain'};
                   1345: 	my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname);
1.49      albertel 1346: 	my $queue = 'none';
1.58      albertel 1347: 	my $cannot_grade;
                   1348: 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1349: 	    $queue = 'reviewqueue';
1.58      albertel 1350: 	    if ($status{'reviewqueue'} eq 'in_progress') {
                   1351: 		$cannot_grade=1;
                   1352: 	    }
                   1353: 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1354: 	    $queue = 'gradingqueue';
1.58      albertel 1355: 	    if ($status{'gradingqueue'} eq 'in_progress') {
                   1356: 		$cannot_grade=1;
                   1357: 	    }
1.49      albertel 1358: 	}
                   1359: 	my $todo = 
                   1360: 	    &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
1.58      albertel 1361: 	if ($cannot_grade) {
                   1362: 	    $result.='<tr><td>&nbsp;</td><td>'.$fullname->{$student}.
                   1363: 		'</td><td>';
                   1364: 	} else {
1.62      albertel 1365: 	    my $seclist;
                   1366: 	    foreach my $sec (@chosen_sections) {
                   1367: 		$seclist.='<input type="hidden" name="chosensections" 
                   1368:                                value="'.$sec.'" />';
                   1369: 	    }
1.58      albertel 1370: 	    $result.=<<RESULT;
1.49      albertel 1371: <tr>
                   1372:   <td>
                   1373:     <form method="POST">
                   1374:       <input type="hidden" name="gradingkey" value="$todo" />
                   1375:       <input type="hidden" name="queue" value="$queue" />
                   1376:       <input type="hidden" name="webgrade" value="no" />
1.52      albertel 1377:       <input type="hidden" name="regrade" value="yes" />
1.62      albertel 1378:       <input type="submit" name="submit" value="Regrade" />
                   1379:       $seclist
1.49      albertel 1380:     </form>
                   1381:   <td>$fullname->{$student}</td>
                   1382:   <td>
                   1383: RESULT
1.58      albertel 1384:         }
1.49      albertel 1385:         if ($status{'status'} eq 'pass') {
                   1386: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
                   1387: 	} elsif ($status{'status'} eq 'fail') {
                   1388: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
                   1389: 	} elsif ($status{'status'} eq 'review') {
                   1390: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
                   1391: 	} elsif ($status{'status'} eq 'ungraded') {
                   1392: 	    $result .= &mt('Ungraded');
                   1393: 	} elsif ($status{'status'} ne '') {
                   1394: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
                   1395: 	} else {
                   1396: 	    $result.="&nbsp;";
                   1397: 	}
                   1398: 	if ($status{'version'}) {
                   1399: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
                   1400: 	}
                   1401: 	$result.= '</td><td>';
                   1402: 	if ($status{'reviewqueue'} eq 'enqueued') {
                   1403: 	    $result .= &mt('Awaiting Review');
                   1404: 	} elsif ($status{'reviewqueue'} eq 'locked') {
                   1405: 	    $result .= &mt('Under Review');
1.58      albertel 1406: 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
                   1407: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1408: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
                   1409: 	    $result .= &mt('Awaiting Grading');
                   1410: 	} elsif ($status{'gradingqueue'} eq 'locked') {
                   1411: 	    $result .= &mt('Being Graded');
1.58      albertel 1412: 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
                   1413: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1414: 	} else {
                   1415: 	    $result.="&nbsp;";
                   1416: 	}
                   1417: 	$result.= '</td></tr>';
                   1418:     }
                   1419:     $result.='</table>';
                   1420:     return $result;
                   1421: }
                   1422: 
                   1423: sub get_student_status {
1.84      albertel 1424:     my ($symb,$cdom,$cnum,$udom,$uname)=@_;
1.49      albertel 1425:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
                   1426: 					  $udom,$uname);
                   1427:     my %status;
                   1428:     $status{'status'}=$record{'resource.status'};
                   1429:     $status{'version'}=$record{'resource.version'};
                   1430:     $status{'grader'}=$record{'resource.grader'};
1.84      albertel 1431:     $status{'reviewqueue'}=&check_queue_for_key($cdom,$cnum,'reviewqueue',
1.49      albertel 1432: 				       &encode_queue_key($symb,$udom,$uname));
1.84      albertel 1433:     $status{'gradingqueue'}=&check_queue_for_key($cdom,$cnum,'gradingqueue',
1.49      albertel 1434: 				       &encode_queue_key($symb,$udom,$uname));
                   1435:     return %status;
                   1436: }
                   1437: 
1.1       albertel 1438: sub start_ClosingParagraph {
                   1439:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1440:     my $result;
                   1441:     if ($target eq 'web') {
1.13      albertel 1442:     } elsif ($target eq 'webgrade') {
                   1443: 	&Apache::lonxml::startredirection();
1.1       albertel 1444:     }
                   1445:     return $result;
                   1446: }
                   1447: 
                   1448: sub end_ClosingParagraph {
                   1449:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1450:     my $result;
                   1451:     if ($target eq 'web') {
1.13      albertel 1452:     } elsif ($target eq 'webgrade') {
                   1453: 	&Apache::lonxml::endredirection();
1.1       albertel 1454:     }
                   1455:     return $result;
                   1456: }
                   1457: 
1.19      albertel 1458: sub get_id {
                   1459:     my ($parstack,$safeeval)=@_;
                   1460:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1461:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1462:     return $id;
                   1463: }
                   1464: 
1.1       albertel 1465: my %dimension;
                   1466: sub start_Dimension {
                   1467:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1468:     undef(%dimension);
1.19      albertel 1469:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel 1470:     $Apache::bridgetask::dimension=$dim_id;
                   1471:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                   1472:     undef(@Apache::bridgetask::instance);
1.20      albertel 1473:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                   1474: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.54      albertel 1475:     &Apache::lonxml::startredirection();
                   1476:     return &internal_location($dim_id);
1.1       albertel 1477: }
                   1478: 
1.13      albertel 1479: sub get_instance {
1.75      albertel 1480:     my ($dim)=@_;
                   1481:     my $rand_alg=&Apache::lonnet::get_rand_alg();
                   1482:     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
                   1483: 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
                   1484: 	$rand_alg eq '64bit4' ) {
                   1485: 	&Apache::response::pushrandomnumber();
                   1486: 	my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
                   1487: 	my $num=@order;
                   1488: 	my $version=&get_version();
                   1489: 	my $which=($version-1)%$num;
                   1490: 	return $order[$which];
                   1491:     } else {
                   1492: 	my ($version,$previous) = &get_version();
                   1493: 	my $instance = 
                   1494: 	    $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
                   1495: 	if (defined($instance)) { return $instance; }
                   1496: 
                   1497: 	&Apache::response::pushrandomnumber();
                   1498: 	my @instances = @{$dimension{'instances'}};
                   1499: 	# remove disabled instances
                   1500: 	for (my $i=0; $i < $#instances; $i++) {
                   1501: 	    if ($dimension{$instances[$i].'.disabled'}) {
                   1502: 		splice(@instances,$i,1);
                   1503: 		$i--;
                   1504: 	    }
                   1505: 	}
                   1506: 	@instances = &Math::Random::random_permutation(@instances);
                   1507: 	$instance  = $instances[($version-1)%scalar(@instances)];
                   1508: 	$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
                   1509: 	    $instance;
1.79      albertel 1510: 	$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
1.75      albertel 1511: 	&Apache::response::poprandomnumber();
                   1512: 	return $instance;
                   1513:     }
1.13      albertel 1514: }
                   1515: 
1.18      albertel 1516: {
                   1517:     my $last_link;
                   1518:     sub end_Dimension {
                   1519: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.54      albertel 1520: 	my $result=&Apache::lonxml::endredirection();
1.25      albertel 1521: 	my $dim=&get_id($parstack,$safeeval);
1.75      albertel 1522: 	my $instance=&get_instance($dim);
1.25      albertel 1523: 	my $version=&get_version();
1.18      albertel 1524: 	if ($target eq 'web') {
1.47      albertel 1525: 	    @Apache::scripttag::parser_env = @_;
                   1526: 	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
1.76      albertel 1527: 	    my @instances = $instance;
                   1528: 	    if (&Apache::response::showallfoils()) {
                   1529: 		@instances = @{$dimension{'instances'}};
                   1530: 	    }
                   1531: 	    foreach my $instance (@instances) {
                   1532: 		@Apache::scripttag::parser_env = @_;
                   1533: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
                   1534: 		if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
                   1535: 		    $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
                   1536: 
                   1537: 		    my $dim_status=$Apache::lonhomework::history{"resource.$version.$dim.status"};
                   1538: 		    my $mandatory='Mandatory';
                   1539: 		    if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
                   1540: 			$mandatory='Optional';
                   1541: 		    }
                   1542: 		    my $dim_info="<div class='$dim_status'>\n";
                   1543: 		    if ($dim_status eq 'pass') {
                   1544: 			$dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1.54      albertel 1545: 		    }
1.76      albertel 1546: 		    if ($dim_status eq 'fail') {
                   1547: 			$dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1.53      albertel 1548: 		    }
1.76      albertel 1549: 		    my $man_count=0;
                   1550: 		    my $man_passed=0;
                   1551: 		    my $opt_count=0;
                   1552: 		    my $opt_passed=0;
                   1553: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1554: 			if ($dimension{$instance.'.criteria.'.$id.'.mandatory'} 
                   1555: 			    eq 'N') {
                   1556: 			    $opt_count++;
                   1557: 			    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
                   1558: 				$opt_passed++;
                   1559: 			    }
                   1560: 			} else {
                   1561: 			    $man_count++;
                   1562: 			    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
                   1563: 				$man_passed++;
                   1564: 			    }
                   1565: 			}
1.22      albertel 1566: 		    }
1.76      albertel 1567: 		    if ($man_passed eq $man_count) { $man_passed='all'; }
                   1568: 		    my $opt_req=$dimension{$instance.'.optionalrequired'};
                   1569: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                   1570: 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
                   1571: 
                   1572: 		    my $internal_location=&internal_location($dim);
                   1573: 		    $result=~s/\Q$internal_location\E/$dim_info/;
                   1574: 
                   1575: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1576: 			my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
                   1577: 			my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
                   1578: 			my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1579: 			if ($mandatory) {
                   1580: 			    $mandatory='Mandatory';
                   1581: 			} else {
                   1582: 			    $mandatory='Optional';
                   1583: 			}
                   1584: 			if ($status eq 'fail') {
                   1585: 			} elsif ($status eq 'pass') {
                   1586: 			} else {
                   1587: 			    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
                   1588: 			}
                   1589: 			my $status_display=$status;
                   1590: 			$status_display=~s/^([a-z])/uc($1)/e;
                   1591: 			@Apache::scripttag::parser_env = @_;
                   1592: 			$result.='<div class="'.$status.'"><h4>'.$mandatory.
                   1593: 			    ' Criteria</h4><p>';
                   1594: 			@Apache::scripttag::parser_env = @_;
                   1595: 			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1596: 			$result.='</p><p class="grade">'.$status_display.'</p>';
                   1597: 			if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
                   1598: 			    $result.='<p class="comment">'.$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</p>';
                   1599: 			}
                   1600: 			$result.='</div>';
1.22      albertel 1601: 		    }
                   1602: 		}
                   1603: 	    }
1.18      albertel 1604: 	} elsif ($target eq 'webgrade') {
1.47      albertel 1605: 	    # in case of any side effects that we need
                   1606: 	    @Apache::scripttag::parser_env = @_;
                   1607: 	    &Apache::scripttag::xmlparse($dimension{'intro'});
                   1608: 	    @Apache::scripttag::parser_env = @_;
                   1609: 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.18      albertel 1610: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1611: 		my $link='criteria_'.$instance.'_'.$id;
1.25      albertel 1612: 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1.19      albertel 1613: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel 1614: 		    '<a name="'.$link.'" />'.
                   1615: 		    '<a name="next_'.$last_link.'" />'.
1.47      albertel 1616: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
                   1617: 		@Apache::scripttag::parser_env = @_;
                   1618: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1619: 		$result.='</textarea>'.
1.18      albertel 1620: 		    #$dimension{$instance.'.criteria.'.$id}.
                   1621: 		    '</td>'.
1.19      albertel 1622: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.25      albertel 1623: 		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
1.18      albertel 1624: 		    '</td>'.
                   1625: 		    '<td>'.
1.47      albertel 1626: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
1.30      albertel 1627: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
                   1628: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
                   1629: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1.18      albertel 1630: 		    '</td>'.
                   1631: 		    '<td>'.
                   1632: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel 1633: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
1.18      albertel 1634: 		    '</td></tr>';
                   1635: 		$last_link=$link;
                   1636: 	    }
1.22      albertel 1637: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1638: 	    my $optional_passed=0;
1.20      albertel 1639: 	    my $mandatory_failed=0;
                   1640: 	    my $ungraded=0;
                   1641: 	    my $review=0;
1.19      albertel 1642: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel 1643: 		my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                   1644: 		$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel 1645: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1646: 		if ($status eq 'pass') {
                   1647: 		    if (!$mandatory) { $optional_passed++; }
                   1648: 		} elsif ($status eq 'fail') {
                   1649: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1650: 		} elsif ($status eq 'review') {
                   1651: 		    $review++;
1.20      albertel 1652: 		} elsif ($status eq 'ungraded') {
                   1653: 		    $ungraded++;
1.21      albertel 1654: 		} else {
1.47      albertel 1655: 		    $ungraded++;
1.19      albertel 1656: 		}
                   1657: 	    }
1.20      albertel 1658: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1659: 		$mandatory_failed++;
                   1660: 	    }
1.21      albertel 1661: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1662: 	    if ($review) {
1.25      albertel 1663: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1664: 		    'review';
1.20      albertel 1665: 	    } elsif ($ungraded) {
1.25      albertel 1666: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1667: 		    'ungraded';
1.20      albertel 1668: 	    } elsif ($mandatory_failed) {
1.25      albertel 1669: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1670: 		    'fail';
1.20      albertel 1671: 	    } else {
1.25      albertel 1672: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1673: 		    'pass';
1.20      albertel 1674: 	    }
1.69      albertel 1675: 	} else {
                   1676: 	    # any other targets no output
                   1677: 	    undef($result);
1.13      albertel 1678: 	}
1.18      albertel 1679: 	return $result;
1.1       albertel 1680:     }
                   1681: }
                   1682: 
                   1683: sub start_IntroParagraph {
                   1684:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1685:     my $result;
1.13      albertel 1686:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1687: 	if ($tagstack->[-2] eq 'Dimension') {
                   1688: 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
                   1689: 	
                   1690: 	} elsif ($target eq 'webgrade') {
                   1691: 	    &Apache::lonxml::get_all_text('/introparagraph',$parser);
1.1       albertel 1692: 	}
1.47      albertel 1693: 	
1.1       albertel 1694:     }
                   1695:     return $result;
                   1696: }
                   1697: 
                   1698: sub end_IntroParagraph {
                   1699: }
                   1700: 
                   1701: sub start_Instance {
                   1702:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1703:     my $id=&get_id($parstack,$safeeval);
                   1704:     push(@{$dimension{'instances'}},$id);
                   1705:     push(@Apache::bridgetask::instance,$id);
                   1706:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1707:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1708: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.75      albertel 1709:     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
                   1710:     if (lc($disabled) eq 'yes') {
                   1711: 	$dimension{$id.'.disabled'}='1';
                   1712:     }
1.1       albertel 1713:     return '';
                   1714: }
                   1715: 
                   1716: sub end_Instance {
                   1717: }
                   1718: 
                   1719: sub start_InstanceText {
                   1720:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.47      albertel 1721:     my $instance_id=$Apache::bridgetask::instance[-1];
                   1722:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
1.13      albertel 1723:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1724: 	$dimension{$instance_id.'.text'}=$text;
1.1       albertel 1725:     }
                   1726:     return '';
                   1727: }
                   1728: 
                   1729: sub end_InstanceText {
                   1730:     return '';
                   1731: }
                   1732: 
                   1733: sub start_Criteria {
                   1734:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel 1735:     my $instance_id=$Apache::bridgetask::instance[-1];
1.47      albertel 1736:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
1.21      albertel 1737:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.19      albertel 1738: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1739: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1740: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1741: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1742: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1743:     }
                   1744:     return '';
                   1745: }
                   1746: 
1.47      albertel 1747: sub end_Criteria {
                   1748: }
                   1749: 
1.4       albertel 1750: sub proctor_validation_screen {
                   1751:     my ($slot) = @_;
                   1752:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1753:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 1754:     my $name=&Apache::loncommon::plainname($user,$domain);
                   1755:     
1.4       albertel 1756:     my $msg;
1.11      albertel 1757:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1758: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1759: 	    .'</font></p>';
                   1760:     }
1.47      albertel 1761:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 1762:     my $result= (<<ENDCHECKOUT);
                   1763: <h2>Proctor Validation</h2>
                   1764:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1765:     $msg
1.11      albertel 1766: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel 1767: <input type="hidden" name="validate" value="yes" />
                   1768: <input type="hidden" name="submitted" value="yes" />
                   1769: <table>
1.44      albertel 1770:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 1771:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 1772:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 1773: </table>
                   1774: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 1775: <table border="1">
                   1776:   <tr><td>
                   1777:     <table>
                   1778:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   1779:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 1780:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.44      albertel 1781:       <tr><td>Usename</td><td>$user\@$domain</td></tr>
                   1782:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   1783:     </table>
                   1784:   </tr></td>
                   1785: </table>
1.4       albertel 1786: </form>
                   1787: ENDCHECKOUT
                   1788:     return $result;
                   1789: }
                   1790: 
1.1       albertel 1791: 1;
                   1792: __END__

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