Annotation of loncom/homework/bridgetask.pm, revision 1.81

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.81    ! albertel    4: # $Id: bridgetask.pm,v 1.80 2005/11/21 17:47:37 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') {
1.81    ! albertel  479: 		    if(&proctor_check_auth($slot_name,$slot,'Task')) {
1.77      albertel  480: 			my $result=&add_to_queue('gradingqueue',
                    481: 						 $Apache::inputtags::slot_name);
                    482: 			&Apache::lonxml::debug("add_to_queue said $result");
                    483: 		    }
1.4       albertel  484: 		}
1.1       albertel  485: 	    }
                    486: 	} elsif ($target eq 'web') {
                    487: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    488: 	    $result.="$head_tag_start<title>$name</title></head>
1.53      albertel  489:               $body_tag_start \n".&style();
1.36      albertel  490: 	    
1.57      albertel  491: 	    $result.=&preserve_grade_info();
                    492: 	    $result.=&internal_location();
1.36      albertel  493: 	    $result.=$form_tag_start.
                    494: 		'<input type="hidden" name="submitted" value="yes" />';
1.54      albertel  495: 	    &Apache::lonxml::startredirection();
1.1       albertel  496: 	}
1.21      albertel  497:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    498: 	      $target eq 'webgrade') {
1.32      albertel  499: 	my $webgrade='yes';
1.21      albertel  500: 	if ($target eq 'webgrade') {
1.32      albertel  501: 	    $result.=$head_tag_start.$body_tag_start;
1.49      albertel  502: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
                    503: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  504: 	}
1.33      albertel  505: 	# FIXME Blast! still need to reorg this, need to reshow the
                    506:         #       queue being reviewed once done with the grade pass...
                    507:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    508:         #       perhaps do a search if there is a key that is mine and if
                    509:         #       there isn't reshow the queue....
                    510: 	my ($todo,$status_code)=&get_key_todo($target);
                    511: 
                    512: 	if ($todo) {
                    513: 	    &setup_env_for_other_user($todo,$safeeval);
                    514: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    515: 	    $result.="\n".'<table><tr><td>Found '.
                    516: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    517: 	    $form_tag_start.=
                    518: 		'<input type="hidden" name="gradingkey" value="'.
                    519: 		&Apache::lonnet::escape($todo).'" />';
                    520: 	    $Apache::bridgetask::queue_key=$todo;
                    521: 	    &Apache::structuretags::initialize_storage();
                    522: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    523: 	    if ($target eq 'webgrade') {
1.49      albertel  524: 		#$result.='<br />After -'.&show_queue($env{'form.queue'});
1.33      albertel  525: 		$result.="\n".'<table width="100%" style="width:100%" border="1">';
                    526: 		if ($status_code eq 'selected') {
                    527: 		    $form_tag_start.=
                    528: 			'<input type="hidden" name="queuemode" value="selected" />';
                    529: 		}
                    530: 	    }
1.15      albertel  531: 	} else {
1.33      albertel  532: 	    if ($target eq 'webgrade') {
                    533: 		$result.="\n";
1.81    ! albertel  534: 		my $back='<p><a href="/adm/flip?postdata=return:">'.
        !           535: 		    &mt('Return to resource').'</a></p>';
1.33      albertel  536: 		if      ($status_code eq 'stop') {
1.81    ! albertel  537: 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
1.33      albertel  538: 		} elsif ($status_code eq 'lock_failed') {
1.81    ! albertel  539: 		    $result.='<b>'.&mt("Failed to lock the request record.")
        !           540: 			.'</b>'.$back;
1.33      albertel  541: 		} elsif ($status_code eq 'unlock') {
1.81    ! albertel  542: 		    $result.='<b>'.&mt("Unlocked the requested record.")
        !           543: 			.'</b>'.$back;
1.33      albertel  544: 		    $result.=&show_queue($env{'form.queue'},1);
                    545: 		} elsif ($status_code eq 'show_list') {
                    546: 		    $result.=&show_queue($env{'form.queue'},1);
1.49      albertel  547: 		} elsif ($status_code eq 'select_user') {
                    548: 		    $result.=&select_user();
1.33      albertel  549: 		} else {
1.81    ! albertel  550: 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
1.32      albertel  551: 		}
1.21      albertel  552: 	    }
1.33      albertel  553: 	    $webgrade='no';
                    554: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
1.32      albertel  555: 	}
                    556: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
1.61      albertel  557: 	    if ($webgrade eq 'yes') {
                    558: 		$result.=&submission_time_stamp();
                    559: 	    }
1.32      albertel  560: 	    $result.=$form_tag_start;
                    561: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    562: 		$webgrade.'" />';
                    563: 	    $result.='<input type="hidden" name="queue" value="'.
                    564: 		$env{'form.queue'}.'" />';
1.52      albertel  565: 	    if ($env{'form.regrade'}) {
                    566: 		$result.='<input type="hidden" name="regrade" value="'.
                    567: 		    $env{'form.regrade'}.'" />';
                    568: 	    }
1.62      albertel  569: 	    if ($env{'form.chosensections'}) {
                    570: 		my @chosen_sections=
                    571: 		    &Apache::loncommon::get_env_multiple('form.chosensections');
                    572: 		foreach my $sec (@chosen_sections) {
                    573: 		    $result.='<input type="hidden" name="chosensections" 
                    574:                                value="'.$sec.'" />';
                    575: 		}
                    576: 	    }
1.70      albertel  577: 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
1.15      albertel  578: 	}
1.74      albertel  579:     } elsif ($target eq 'edit') {
                    580: 	$result.=$head_tag_start."</head>".$body_tag_start.$form_tag_start.
                    581: 	    &Apache::structuretags::problem_edit_header();
                    582: 	$Apache::lonxml::warnings_error_header=
                    583: 	    &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 />";
                    584: 	my $temp=&Apache::edit::insertlist($target,$token);
                    585: 	$result.=$temp;
1.1       albertel  586:     } else {
                    587: 	# page_start returned a starting result, delete it if we don't need it
                    588: 	$result = '';
                    589:     }
                    590:     return $result;
                    591: }
                    592: 
1.32      albertel  593: sub get_key_todo {
                    594:     my ($target)=@_;
                    595:     my $todo;
1.33      albertel  596: 
                    597:     if (defined($env{'form.reviewasubmission'})) {
1.54      albertel  598: 	&Apache::lonxml::debug("review a submission....");
1.33      albertel  599: 	$env{'form.queue'}='reviewqueue';
                    600: 	return (undef,'show_list');
                    601:     }
                    602: 
                    603:     if (defined($env{'form.reviewagrading'})) {
                    604: 	&Apache::lonxml::debug("review a grading....");
                    605: 	$env{'form.queue'}='gradingqueue';
                    606: 	return (undef,'show_list');
                    607:     }
                    608: 
1.49      albertel  609:     if (defined($env{'form.regradeasubmission'})) {
                    610: 	&Apache::lonxml::debug("regrade a grading....");
                    611: 	$env{'form.queue'}='none';
                    612: 	return (undef,'select_user');
                    613:     }
                    614: 
1.32      albertel  615:     my $queue=$env{'form.queue'};
1.33      albertel  616: 
1.32      albertel  617:     if (!defined($queue)) {
                    618: 	$env{'form.queue'}=$queue='gradingqueue';
                    619:     }
1.33      albertel  620: 
1.32      albertel  621:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  622: 
1.49      albertel  623:     if ($env{'form.queue'} eq 'none') {
                    624: 	if (defined($env{'form.gradingkey'})) {
                    625: 	    if ($target eq 'webgrade') {
                    626: 		if ($env{'form.stop'}) {
                    627: 		    return (undef,'stop');
                    628: 		} elsif ($env{'form.next'}) {
1.59      albertel  629: 		    return (undef,'select_user');
1.49      albertel  630: 		}
                    631: 	    }
                    632: 	    return ($gradingkey,'selected');
                    633: 	} else {
1.59      albertel  634: 	    return (undef,'select_user');
1.49      albertel  635: 	}
                    636:     }
1.32      albertel  637:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  638: 	&& !defined($env{'form.gradingaction'}) 
                    639: 	&& $env{'form.queuemode'} eq 'selected') {
                    640: 	
                    641: 	my $who=&queue_key_locked($queue,$gradingkey);
                    642: 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    643: 	if ($who eq $me) {
                    644: 	    &Apache::lonxml::debug("Found a key was given to me");
                    645: 	    return ($gradingkey,'selected');
                    646: 	} else {
                    647: 	    return (undef,'show_list');
                    648: 	}
                    649: 
                    650:     }
                    651: 
                    652:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    653: 	if ($env{'form.gradingaction'} eq 'resume') {
                    654: 	    delete($env{'form.gradingaction'});
                    655: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  656: 	    return ($gradingkey);
1.33      albertel  657: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    658: 	    &Apache::lonxml::debug("Unlocking a key ".
                    659: 				     &check_queue_unlock($queue,$gradingkey,1));
                    660: 	    return (undef,'unlock');
                    661: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    662: 	    &Apache::lonxml::debug("Locking a key");
                    663: 	    if (&lock_key($queue,$gradingkey)) {
                    664: 		&Apache::lonxml::debug("Success $queue");
                    665: 		return ($gradingkey);
                    666: 	    }
                    667: 	    &Apache::lonxml::debug("Failed $queue");
                    668: 	    return (undef,'lock_failed');
1.32      albertel  669: 	}
                    670:     }
1.33      albertel  671: 
                    672:     if ($env{'form.queuemode'} ne 'selected') {
                    673: 	# don't get something new from the queue if they hit the stop button
                    674:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    675: 	    && !$env{'form.gradingaction'}) {
                    676: 	    &Apache::lonxml::debug("Getting anew $queue");
                    677: 	    return (&get_from_queue($queue));
                    678: 	} else {
                    679: 	    return (undef,'stop');
                    680: 	}
1.32      albertel  681:     }
1.33      albertel  682:     return (undef,undef)
1.32      albertel  683: }
1.1       albertel  684: sub end_Task {
                    685:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    686:     my $result='';
                    687:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  688:     my ($version,$previous)=&get_version();
1.1       albertel  689:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  690: 	$target eq 'tex') {
1.69      albertel  691: 	if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
1.1       albertel  692: 	    if ($target eq 'web') {
1.54      albertel  693: 		if (&show_task($status,$previous)) {
                    694: 		    $result.=&Apache::lonxml::endredirection();
                    695: 		}
1.64      albertel  696: 		if ($status eq 'CAN_ANSWER' && !$previous && 
                    697: 		    !$env{'form.donescreen'}) {
1.15      albertel  698: 		    $result.="\n".'<table border="1">'.
1.28      albertel  699: 			&Apache::inputtags::file_selector("$version.0",
                    700: 							  "bridgetask","*",
1.46      albertel  701: 							  'portfolioonly',
                    702: 							  '
                    703: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    704: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  705: 							  "</table>";
1.77      albertel  706: 		}
1.78      albertel  707: 		if (!$previous && $status ne 'SHOW_ANSWER' &&
                    708: 		    &show_task($status,$previous)) {
1.9       albertel  709: 		    $result.=&Apache::inputtags::gradestatus('0');
1.64      albertel  710: 		    $result.='</form>';
                    711: 		    $result.=<<DONEBUTTON;
                    712: <form method="POST">
                    713:    <input type="hidden" name="donescreen" value="1" />
                    714:    <input type="submit" value="Done" />
                    715: </form>
                    716: DONEBUTTON
1.77      albertel  717:                 }
1.56      albertel  718: 		if (&show_task($status,$previous) &&
                    719: 		    $Apache::lonhomework::history{"resource.$version.status"} =~ /^(pass|fail)$/) {
1.54      albertel  720: 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.status"};
                    721: 		    my $title=&Apache::lonnet::gettitle();
1.80      albertel  722: 
                    723: 		    my $slot_name=
                    724: 			$Apache::lonhomework::history{"resource.$version.checkedin.slot"};
                    725: 		    my %slot=&Apache::lonnet::get_slot($slot_name);
1.55      albertel  726: 		    my $start_time=
                    727: 			&Apache::lonlocal::locallocaltime($slot{'starttime'});
1.54      albertel  728: 
1.80      albertel  729: 		    my $status = "\n<div class='$bt_status'>\n";
1.54      albertel  730: 		    
                    731: 		    if ($bt_status eq 'pass')  {
                    732: 			$status.='<h2>You passed the '.$title.' given on '.
1.80      albertel  733: 			    $start_time.'</h2>';
1.54      albertel  734: 		    }
                    735: 		    if ($bt_status eq 'fail')  {
                    736: 			$status.='<h2>You did not pass the '.$title.' given on '.
1.80      albertel  737: 			    $start_time.'</h2>';
1.54      albertel  738: 			if (!$previous) {
                    739: 			    $status.=&add_request_another_attempt_button();
                    740: 			}
                    741: 		    }
                    742: 		    my $man_count=0;
                    743: 		    my $opt_count=0;
                    744: 		    my $opt_passed=0;
                    745: 		    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    746: 			if ($Apache::bridgetask::dimensionmandatory{$dim_id}
                    747: 			    eq 'N') {
                    748: 			    $opt_count++;
                    749: 			    if ($Apache::lonhomework::history{"resource.$version.$dim_id.status"} eq 'pass') {
                    750: 				$opt_passed++;
                    751: 			    }
                    752: 			} else {
                    753: 			    $man_count++;
                    754: 			}
                    755: 		    }
                    756: 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
                    757: 							 $parstack,$safeeval);
                    758: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                    759: 		    $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components on the bridge task.',$man_count,$opt_req,$opt_count)."</p></div>\n";
                    760: 
                    761: 		    my $internal_location=&internal_location();
                    762: 		    $result=~s/\Q$internal_location\E/$status/;
                    763: 		}
1.13      albertel  764: 	    } 
                    765: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  766: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    767: 	    }
                    768: 	}
1.29      albertel  769: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  770: 	    my $award='SUBMITTED';
1.28      albertel  771: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  772: 						    'portfiles',\$award);
1.14      albertel  773: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  774: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    775: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    776: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    777: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    778: 
                    779: 		$Apache::lonhomework::results{"resource.0.award"}=
                    780: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    781: 		    $award;
1.51      albertel  782: 		$Apache::lonhomework::results{"resource.0.submission"}=
                    783: 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
1.64      albertel  784: 	    } else {
                    785: 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
1.77      albertel  786: 		$award = '';
1.10      albertel  787: 	    }
1.4       albertel  788: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    789: 	    &Apache::structuretags::finalize_storage();
1.14      albertel  790: 	    if ($award eq 'SUBMITTED') {
1.31      albertel  791: 		&add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
1.14      albertel  792: 	    }
1.79      albertel  793: 	} elsif ($Apache::lonhomework::results{'INTERNAL_store'}) {
                    794: 	    &Apache::structuretags::finalize_storage();
1.1       albertel  795: 	}
1.32      albertel  796: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  797: 	    my $optional_required=
                    798: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    799: 					   $safeeval);
                    800: 	    my $optional_passed=0;
                    801: 	    my $mandatory_failed=0;
                    802: 	    my $ungraded=0;
                    803: 	    my $review=0;   
1.21      albertel  804: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  805: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    806: 		my $status=
1.25      albertel  807: 		    $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
1.20      albertel  808: 		my $mandatory=
                    809: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    810: 		if ($status eq 'pass') {
                    811: 		    if (!$mandatory) { $optional_passed++; }
                    812: 		} elsif ($status eq 'fail') {
                    813: 		    if ($mandatory) { $mandatory_failed++; }
                    814: 		} elsif ($status eq 'ungraded') {
                    815: 		    $ungraded++;
                    816: 		} elsif ($status eq 'review') {
                    817: 		    $review++;
1.49      albertel  818: 		} else {
                    819: 		    $ungraded++;
                    820: 		}
1.20      albertel  821: 	    }
                    822: 	    if ($optional_passed < $optional_required) {
                    823: 		$mandatory_failed++;
                    824: 	    }
1.21      albertel  825: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
                    826: 	    $Apache::lonhomework::results{'resource.grader'}=
1.20      albertel  827: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    828: 	    if ($review) {
1.25      albertel  829: 		$Apache::lonhomework::results{"resource.$version.status"}='review';
1.33      albertel  830: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    831: 		    &check_queue_unlock($env{'form.queue'});
                    832: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    833: 		} else {
1.49      albertel  834: 		    &move_between_queues($env{'form.queue'},'reviewqueue');
1.33      albertel  835: 		}
1.20      albertel  836: 	    } elsif ($ungraded) {
1.25      albertel  837: 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
1.49      albertel  838: 		if ($env{'form.queue'} eq 'reviewqueue' ||
                    839: 		    $env{'form.queue'} eq 'none' ) {
1.33      albertel  840: 		    &Apache::lonxml::debug("moving back.");
1.49      albertel  841: 		    &move_between_queues($env{'form.queue'},'gradingqueue');
1.33      albertel  842: 		} else {
                    843: 		    &check_queue_unlock($env{'form.queue'});
                    844: 		}
1.20      albertel  845: 	    } elsif ($mandatory_failed) {
1.25      albertel  846: 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
                    847: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    848: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    849: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel  850: 		&remove_from_queue($env{'form.queue'}); 
                    851: 
                    852: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  853: 		
                    854: 		if ($env{'form.regrade'} ne 'yes') {
                    855: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    856: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    857: 		    &Apache::grades::version_portfiles(
                    858: 						       \%Apache::lonhomework::results,
                    859: 						       ["$version.0.bridgetask"],$courseid,
                    860: 						       $symb,$udom,$uname,
                    861: 						       ["$version.0.bridgetask"]);
                    862: 		}
1.20      albertel  863: 	    } else {
1.25      albertel  864: 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
                    865: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    866: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    867: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  868: 		&remove_from_queue($env{'form.queue'});
1.39      albertel  869: 
                    870: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  871: 		if ($env{'form.regrade'} ne 'yes') {
                    872: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    873: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    874: 		    &Apache::grades::version_portfiles(
                    875: 						       \%Apache::lonhomework::results,
                    876: 						       ["$version.0.bridgetask"],$courseid,
                    877: 						       $symb,$udom,$uname,
                    878: 						       ["$version.0.bridgetask"]);
                    879: 		}
1.20      albertel  880: 	    }
1.26      albertel  881: 	    $Apache::lonhomework::results{"resource.status"}=
                    882: 		$Apache::lonhomework::results{"resource.$version.status"};
1.28      albertel  883: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  884: 		$Apache::lonhomework::results{"resource.0.award"}=
1.50      albertel  885: 		    $Apache::lonhomework::results{"resource.$version.0.award"};
1.26      albertel  886: 		$Apache::lonhomework::results{"resource.0.awarded"}=
1.50      albertel  887: 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
1.26      albertel  888: 		$Apache::lonhomework::results{"resource.0.solved"}=
1.50      albertel  889: 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
1.25      albertel  890: 	    }
1.21      albertel  891: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  892: 	}
1.15      albertel  893:     } elsif ($target eq 'webgrade') {
1.18      albertel  894: 	$result.="</table>\n<hr />";
1.20      albertel  895: 	#$result.='<input type="submit" name="next" value="'.
                    896: 	#    &mt('Save &amp; Next').'" /> ';
                    897: 	#$result.='<input type="submit" name="end" value="'.
                    898: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    899: 	#$result.='<input type="submit" name="throwaway" value="'.
                    900: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    901: 	#$result.='<input type="submit" name="save" value="'.
                    902: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  903: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  904:     } elsif ($target eq 'meta') {
1.70      albertel  905: 	$result.=&Apache::response::meta_package_write('Task');
1.77      albertel  906:         $result.=&Apache::response::meta_stores_write('solved','string',
                    907: 						      'Problem Status');
                    908: 	$result.=&Apache::response::meta_stores_write('tries','int_zeropos',
                    909: 						      'Number of Attempts');
                    910: 	$result.=&Apache::response::meta_stores_write('awarded','float',
                    911: 						      'Partial Credit Factor');
                    912: 	$result.=&Apache::response::meta_stores_write('status','string',
                    913: 						      'Bridge Task Status');
1.1       albertel  914:     }
1.4       albertel  915:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  916:     return $result;
                    917: }
                    918: 
1.31      albertel  919: sub move_between_queues {
                    920:     my ($src_queue,$dest_queue)=@_;
1.49      albertel  921:     my $cur_data;
                    922:     if ($src_queue ne 'none') {
                    923: 	$cur_data=&get_queue_data($src_queue);
                    924: 	if (!$cur_data) { return 'not_exist'; }
                    925:     } else {
                    926: 	$cur_data = ['none'];
                    927:     }
1.31      albertel  928:     my $result=&add_to_queue($dest_queue,$cur_data->[0]);
                    929:     if ($result ne 'ok') {
                    930: 	return $result;
                    931:     }
                    932:     &check_queue_unlock($src_queue);
                    933:     return &remove_from_queue($src_queue);
1.21      albertel  934: }
                    935: 
                    936: sub check_queue_unlock {
1.32      albertel  937:     my ($queue,$key,$allow_not_me)=@_;
1.49      albertel  938:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel  939:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel  940:     if (!defined($key)) {
                    941: 	$key="$symb\0queue\0$uname\@$udom";
                    942:     }
1.30      albertel  943:     my $cnum=$env{'course.'.$cid.'.num'};
                    944:     my $cdom=$env{'course.'.$cid.'.domain'};
                    945:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    946:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                    947:     if  ($who eq $me) {
1.32      albertel  948: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                    949:     } elsif ($allow_not_me) {
1.33      albertel  950: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel  951: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel  952:     }
1.32      albertel  953:     return 'not_owner';
1.21      albertel  954: }
                    955: 
                    956: sub remove_from_queue {
1.30      albertel  957:     my ($queue)=@_;
1.49      albertel  958:     if ($queue eq 'none') { return 'ok'; }
1.27      albertel  959:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    960:     my $cnum=$env{'course.'.$cid.'.num'};
                    961:     my $cdom=$env{'course.'.$cid.'.domain'};
                    962:     my $key="$symb\0queue\0$uname\@$udom";
                    963:     my @keys=($key,"$key\0locked");
1.31      albertel  964:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel  965: }
                    966: 
1.16      albertel  967: sub setup_env_for_other_user {
                    968:     my ($queue_key,$safeeval)=@_;
                    969:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel  970:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel  971:     $env{'form.grade_symb'}=$symb;
                    972:     $env{'form.grade_domain'}=$udom;
                    973:     $env{'form.grade_username'}=$uname;
                    974:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                    975:     &Apache::lonxml::initialize_rndseed($safeeval);
                    976: }
                    977: 
1.31      albertel  978: sub get_queue_data {
                    979:     my ($queue)=@_;
                    980:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    981:     my $cnum=$env{'course.'.$cid.'.num'};
                    982:     my $cdom=$env{'course.'.$cid.'.domain'};
                    983:     my $todo="$symb\0queue\0$uname\@$udom";
                    984:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                    985:     if ($key eq $todo && ref($value)) {
                    986: 	return $value;
                    987:     }
                    988:     return undef;
                    989: }
                    990: 
1.49      albertel  991: sub check_queue_for_key {
                    992:     my ($cid,$queue,$todo)=@_;
                    993:     my $cnum=$env{'course.'.$cid.'.num'};
                    994:     my $cdom=$env{'course.'.$cid.'.domain'};
                    995:     my %results=
                    996: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
                    997:     
                    998:     if (exists($results{$todo}) && ref($results{$todo})) {
                    999: 	if (defined($results{"$todo\0locked"})) {
                   1000: 	    return 'locked';
                   1001: 	}
1.58      albertel 1002: 	my $slot=$results{$todo}->[0];
                   1003: 	my %slot_data=&Apache::lonnet::get_slot($slot);
                   1004: 	if ($slot_data{'endtime'} > time) { 
                   1005: 	    return 'in_progress';
                   1006: 	}
1.49      albertel 1007: 	return 'enqueued';
                   1008:     }
                   1009:     return undef;
                   1010: }
                   1011: 
1.14      albertel 1012: sub add_to_queue {
1.31      albertel 1013:     my ($queue,$slot_name)=@_;
1.49      albertel 1014:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel 1015:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1016:     my $cnum=$env{'course.'.$cid.'.num'};
                   1017:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1018:     my %data;
1.31      albertel 1019:     $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
1.77      albertel 1020:     return &Apache::lonnet::newput($queue,\%data,$cdom,$cnum);
1.14      albertel 1021: }
                   1022: 
                   1023: sub show_queue {
1.32      albertel 1024:     my ($queue,$with_selects)=@_;
1.14      albertel 1025:     my $result;
                   1026:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1027:     my $cnum=$env{'course.'.$cid.'.num'};
                   1028:     my $cdom=$env{'course.'.$cid.'.domain'};
1.59      albertel 1029: 
                   1030:     my @chosen_sections=
                   1031: 	&Apache::loncommon::get_env_multiple('form.chosensections');
                   1032:     &Apache::grades::init_perm();
                   1033:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
                   1034:     &Apache::grades::reset_perm();
1.63      albertel 1035:     if (!(grep(/^all$/,@chosen_sections))) {
                   1036: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1037: 	    '</tt>.</p> '."\n";
                   1038:     }
1.59      albertel 1039: 
1.16      albertel 1040:     my $regexp="^$symb\0";
1.30      albertel 1041:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel 1042:     my ($tmp)=%queue;
                   1043:     if ($tmp=~/^error: 2 /) {
1.33      albertel 1044: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel 1045:     }
1.33      albertel 1046:     $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
1.32      albertel 1047:     if ($with_selects) { $result.="<th></th>"; }
                   1048:     $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
1.14      albertel 1049:     foreach my $key (sort(keys(%queue))) {
1.59      albertel 1050: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1051: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
1.32      albertel 1052: 	if ($key=~/locked$/ && !$with_selects) {
1.16      albertel 1053: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel 1054: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel 1055: 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
1.32      albertel 1056: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.16      albertel 1057: 	    my ($symb,undef) = split("\0",$key);
                   1058: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel 1059: 	    $result.="<tr><td>$title</td><td></td>";
1.16      albertel 1060: 	    $result.='<td>last queue modification time</td><td>'.
                   1061: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel 1062: 	} elsif ($key!~/(timestamp|locked)$/) {
1.16      albertel 1063: 	    my $title=&Apache::lonnet::gettitle($symb);
1.32      albertel 1064: 	    $result.="<tr>";
1.35      albertel 1065: 	    my $slot=$queue{$key}->[0];
                   1066: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel 1067: 	    if ($with_selects) {
                   1068: 		my $ekey=&Apache::lonnet::escape($key);
                   1069: 		my ($action,$description)=('select',&mt('Select'));
                   1070: 		if (exists($queue{"$key\0locked"})) {
                   1071: 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1072: 		    if ($me eq $queue{"$key\0locked"}) {
                   1073: 			($action,$description)=('resume',&mt('Resume'));
                   1074: 		    } else {
                   1075: 			($action,$description)=('unlock',&mt('Unlock'));
                   1076: 		    }
                   1077: 		}
1.62      albertel 1078: 		my $seclist;
                   1079: 		foreach my $sec (@chosen_sections) {
                   1080: 		    $seclist.='<input type="hidden" name="chosensections" 
                   1081:                                value="'.$sec.'" />';
                   1082: 		}
1.35      albertel 1083: 		if (time > $slot_data{'endtime'}) {
                   1084: 		    $result.=(<<FORM);
1.32      albertel 1085: <td>
                   1086: <form method="POST">
                   1087:  <input type="hidden" name="gradingkey" value="$ekey" />
                   1088:  <input type="hidden" name="queue" value="$queue" />
                   1089:  <input type="hidden" name="gradingaction" value="$action" />
                   1090:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel 1091:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel 1092:  <input type="submit" name="submit" value="$description" />
1.62      albertel 1093:  $seclist
1.32      albertel 1094: </form>
                   1095: </td>
                   1096: FORM
1.35      albertel 1097: 
                   1098:                 } else {
                   1099: 		    $result.='<td>'.&mt("In Progress").'</td>'
                   1100: 		}
1.32      albertel 1101: 	    }
                   1102: 	    $result.="<td>$title</td><td>$uname</td>";
1.27      albertel 1103: 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1.20      albertel 1104: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                   1105: 		"</td></tr>";
1.16      albertel 1106: 	}
1.14      albertel 1107:     }
1.15      albertel 1108:     $result.="</table><hr />\n";
1.14      albertel 1109:     return $result;
                   1110: }
                   1111: 
1.34      albertel 1112: sub get_queue_counts {
                   1113:     my ($queue)=@_;
                   1114:     my $result;
                   1115:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1116:     my $cnum=$env{'course.'.$cid.'.num'};
                   1117:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1118:     my $regexp="^$symb\0";
                   1119:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1120:     my ($tmp)=%queue;
                   1121:     if ($tmp=~/^error: 2 /) {
                   1122: 	return (0,0,0);
                   1123:     }
                   1124:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
                   1125:     foreach my $key (sort(keys(%queue))) {
                   1126: 	if ($key=~/locked$/) {
                   1127: 	    $locks++;
                   1128: 	} elsif ($key=~/timestamp$/) {
                   1129: 	    #ignore
                   1130: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1131: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1132: 	    $entries++;
                   1133: 	    my $slot=$queue{$key}->[0];
                   1134: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1135: 	    if (time > $slot_data{'endtime'}) {
                   1136: 		$ready_to_grade++;
                   1137: 	    }
                   1138: 	}
                   1139:     }
                   1140:     return ($entries,$ready_to_grade,$locks);
                   1141: }
                   1142: 
1.49      albertel 1143: sub encode_queue_key {
                   1144:     my ($symb,$udom,$uname)=@_;
                   1145:     return "$symb\0queue\0$uname\@$udom";
                   1146: }
                   1147: 
1.14      albertel 1148: sub decode_queue_key {
                   1149:     my ($key)=@_;
                   1150:     my ($symb,undef,$user) = split("\0",$key);
                   1151:     my ($uname,$udom) = split('@',$user);
                   1152:     return ($symb,$uname,$udom);
                   1153: }
                   1154: 
                   1155: sub queue_key_locked {
1.30      albertel 1156:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel 1157:     if (!defined($cdom) || !defined($cnum)) {
                   1158: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1159: 	$cnum=$env{'course.'.$cid.'.num'};
                   1160: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1161:     }
1.14      albertel 1162:     my ($key_locked,$value)=
1.30      albertel 1163: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel 1164:     if ($key_locked eq "$key\0locked") {
                   1165: 	return $value;
                   1166:     }
                   1167:     return undef;
                   1168: }
                   1169: 
                   1170: sub pick_from_queue_data {
1.30      albertel 1171:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
                   1172:     foreach my $key (keys(%$queuedata)) {
1.68      albertel 1173: 	if ($key =~ /\0locked$/) { next; }
                   1174: 	if ($key =~ /\0timestamp$/) { next; }
1.14      albertel 1175: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                   1176: 	if ($check_section) {
                   1177: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel 1178: 	    if ($section eq $check_section) {
1.33      albertel 1179: 		&Apache::lonxml::debug("my sec");
1.15      albertel 1180: 		next;
                   1181: 	    }
1.14      albertel 1182: 	}
1.30      albertel 1183: 	my $slot=$queuedata->{$key}[0];
1.14      albertel 1184: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel 1185: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel 1186: 	    &Apache::lonxml::debug("not time");
1.15      albertel 1187: 	    next;
                   1188: 	}
1.30      albertel 1189: 	if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
1.33      albertel 1190: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel 1191: 	    next;
                   1192: 	}
1.14      albertel 1193: 	return $key;
                   1194:     }
                   1195:     return undef;
                   1196: }
                   1197: 
1.15      albertel 1198: sub find_mid_grade {
1.30      albertel 1199:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel 1200:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel 1201:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1202:     if ($todo) {
1.30      albertel 1203: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel 1204: 	if ($who eq $me) { return $todo; }
                   1205:     }
                   1206:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel 1207:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel 1208:     foreach my $key (keys(%locks)) {
                   1209: 	my $who=$locks{$key};
                   1210: 	if ($who eq $me) {
                   1211: 	    $todo=$key;
                   1212: 	    $todo=~s/\0locked$//;
                   1213: 	    return $todo;
                   1214: 	}
                   1215:     }
                   1216:     return undef;
                   1217: }
                   1218: 
1.32      albertel 1219: sub lock_key {
                   1220:     my ($queue,$todo)=@_;
                   1221:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                   1222:     my (undef,$cid)=&Apache::lonxml::whichuser();
                   1223:     my $cnum=$env{'course.'.$cid.'.num'};
                   1224:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1225:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                   1226: 					$cdom,$cnum);
1.33      albertel 1227:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel 1228:     if ($success eq 'ok') {
                   1229: 	return 1;
                   1230:     }
                   1231:     return 0;
                   1232: }
                   1233: 
1.14      albertel 1234: sub get_from_queue {
1.30      albertel 1235:     my ($queue)=@_;
1.14      albertel 1236:     my $result;
                   1237:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1238:     my $cnum=$env{'course.'.$cid.'.num'};
                   1239:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel 1240:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel 1241:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel 1242:     if ($todo) { return $todo; }
1.14      albertel 1243:     while (1) {
                   1244: 	my $starttime=time;
1.30      albertel 1245: 	&Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
1.14      albertel 1246: 			     $cdom,$cnum);
1.33      albertel 1247: 	&Apache::lonxml::debug("$starttime");
1.14      albertel 1248: 	my $regexp="^$symb\0queue\0";
1.30      albertel 1249: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel 1250: 	#make a pass looking for a user _not_ in my section
1.14      albertel 1251: 	if ($env{'request.course.sec'}) {
1.33      albertel 1252: 	    &Apache::lonxml::debug("sce");
1.30      albertel 1253: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1254: 					\%queue,$cdom,$cnum);
1.33      albertel 1255: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel 1256: 	}
1.33      albertel 1257: 	# no one _not_ in our section so look for any user that is
                   1258: 	# ready for grading
1.14      albertel 1259: 	if (!$todo) {
1.33      albertel 1260: 	    &Apache::lonxml::debug("no sce");
1.31      albertel 1261: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1262: 					\%queue,$cdom,$cnum);
1.33      albertel 1263: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel 1264: 	}
                   1265: 	# no user to grade 
                   1266: 	if (!$todo) { last; }
1.33      albertel 1267: 	&Apache::lonxml::debug("got $todo");
1.14      albertel 1268: 	# otherwise found someone so lets try to lock them
1.32      albertel 1269: 	# unless someone else already picked them
                   1270: 	if (!&lock_key($queue,$todo)) { next; }
1.14      albertel 1271: 	my (undef,$endtime)=
1.30      albertel 1272: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel 1273: 				 $cdom,$cnum);
1.33      albertel 1274: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel 1275: 	# someone else already modified the queue, 
                   1276: 	# perhaps our picked user wass already fully graded between
                   1277: 	# when we picked him and when we locked his record? so lets
                   1278: 	# double check.
                   1279: 	if ($endtime != $starttime) {
                   1280: 	    my ($key,$value)=
1.30      albertel 1281: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel 1282: 				     $cdom,$cnum);
1.33      albertel 1283: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel 1284: 	    if ($key eq $todo && ref($value)) {
                   1285: 	    } else {
1.30      albertel 1286: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel 1287: 				     $cdom,$cnum);
1.33      albertel 1288: 		&Apache::lonxml::debug("del");
1.14      albertel 1289: 		next;
                   1290: 	    }
                   1291: 	}
1.33      albertel 1292: 	&Apache::lonxml::debug("last $todo");
1.14      albertel 1293: 	last;
                   1294:     }
                   1295:     return $todo;
                   1296: }
                   1297: 
1.49      albertel 1298: sub select_user {
                   1299:     my ($symb,$cid)=&Apache::lonxml::whichuser();
                   1300: 
1.59      albertel 1301:     my @chosen_sections=
                   1302: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.49      albertel 1303:     &Apache::grades::init_perm();
1.59      albertel 1304:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
1.49      albertel 1305:     &Apache::grades::reset_perm();
1.63      albertel 1306:     
                   1307:     my $result;
                   1308:     if (!(grep(/^all$/,@chosen_sections))) {
                   1309: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1310: 	    '</tt>.</p> '."\n";
                   1311:     }
                   1312:     $result.='<table border="1">';
1.49      albertel 1313: 
                   1314:     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
                   1315: 	my ($uname,$udom) = split(/:/,$student);
1.59      albertel 1316: 	
1.49      albertel 1317: 	my %status = &get_student_status($symb,$cid,$udom,$uname);
                   1318: 	my $queue = 'none';
1.58      albertel 1319: 	my $cannot_grade;
                   1320: 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1321: 	    $queue = 'reviewqueue';
1.58      albertel 1322: 	    if ($status{'reviewqueue'} eq 'in_progress') {
                   1323: 		$cannot_grade=1;
                   1324: 	    }
                   1325: 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1326: 	    $queue = 'gradingqueue';
1.58      albertel 1327: 	    if ($status{'gradingqueue'} eq 'in_progress') {
                   1328: 		$cannot_grade=1;
                   1329: 	    }
1.49      albertel 1330: 	}
                   1331: 	my $todo = 
                   1332: 	    &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
1.58      albertel 1333: 	if ($cannot_grade) {
                   1334: 	    $result.='<tr><td>&nbsp;</td><td>'.$fullname->{$student}.
                   1335: 		'</td><td>';
                   1336: 	} else {
1.62      albertel 1337: 	    my $seclist;
                   1338: 	    foreach my $sec (@chosen_sections) {
                   1339: 		$seclist.='<input type="hidden" name="chosensections" 
                   1340:                                value="'.$sec.'" />';
                   1341: 	    }
1.58      albertel 1342: 	    $result.=<<RESULT;
1.49      albertel 1343: <tr>
                   1344:   <td>
                   1345:     <form method="POST">
                   1346:       <input type="hidden" name="gradingkey" value="$todo" />
                   1347:       <input type="hidden" name="queue" value="$queue" />
                   1348:       <input type="hidden" name="webgrade" value="no" />
1.52      albertel 1349:       <input type="hidden" name="regrade" value="yes" />
1.62      albertel 1350:       <input type="submit" name="submit" value="Regrade" />
                   1351:       $seclist
1.49      albertel 1352:     </form>
                   1353:   <td>$fullname->{$student}</td>
                   1354:   <td>
                   1355: RESULT
1.58      albertel 1356:         }
1.49      albertel 1357:         if ($status{'status'} eq 'pass') {
                   1358: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
                   1359: 	} elsif ($status{'status'} eq 'fail') {
                   1360: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
                   1361: 	} elsif ($status{'status'} eq 'review') {
                   1362: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
                   1363: 	} elsif ($status{'status'} eq 'ungraded') {
                   1364: 	    $result .= &mt('Ungraded');
                   1365: 	} elsif ($status{'status'} ne '') {
                   1366: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
                   1367: 	} else {
                   1368: 	    $result.="&nbsp;";
                   1369: 	}
                   1370: 	if ($status{'version'}) {
                   1371: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
                   1372: 	}
                   1373: 	$result.= '</td><td>';
                   1374: 	if ($status{'reviewqueue'} eq 'enqueued') {
                   1375: 	    $result .= &mt('Awaiting Review');
                   1376: 	} elsif ($status{'reviewqueue'} eq 'locked') {
                   1377: 	    $result .= &mt('Under Review');
1.58      albertel 1378: 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
                   1379: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1380: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
                   1381: 	    $result .= &mt('Awaiting Grading');
                   1382: 	} elsif ($status{'gradingqueue'} eq 'locked') {
                   1383: 	    $result .= &mt('Being Graded');
1.58      albertel 1384: 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
                   1385: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1386: 	} else {
                   1387: 	    $result.="&nbsp;";
                   1388: 	}
                   1389: 	$result.= '</td></tr>';
                   1390:     }
                   1391:     $result.='</table>';
                   1392:     return $result;
                   1393: }
                   1394: 
                   1395: sub get_student_status {
                   1396:     my ($symb,$cid,$udom,$uname)=@_;
                   1397:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
                   1398: 					  $udom,$uname);
                   1399:     my %status;
                   1400:     $status{'status'}=$record{'resource.status'};
                   1401:     $status{'version'}=$record{'resource.version'};
                   1402:     $status{'grader'}=$record{'resource.grader'};
                   1403:     $status{'reviewqueue'}=&check_queue_for_key($cid,'reviewqueue',
                   1404: 				       &encode_queue_key($symb,$udom,$uname));
                   1405:     $status{'gradingqueue'}=&check_queue_for_key($cid,'gradingqueue',
                   1406: 				       &encode_queue_key($symb,$udom,$uname));
                   1407:     return %status;
                   1408: }
                   1409: 
1.1       albertel 1410: sub start_ClosingParagraph {
                   1411:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1412:     my $result;
                   1413:     if ($target eq 'web') {
1.13      albertel 1414:     } elsif ($target eq 'webgrade') {
                   1415: 	&Apache::lonxml::startredirection();
1.1       albertel 1416:     }
                   1417:     return $result;
                   1418: }
                   1419: 
                   1420: sub end_ClosingParagraph {
                   1421:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1422:     my $result;
                   1423:     if ($target eq 'web') {
1.13      albertel 1424:     } elsif ($target eq 'webgrade') {
                   1425: 	&Apache::lonxml::endredirection();
1.1       albertel 1426:     }
                   1427:     return $result;
                   1428: }
                   1429: 
1.19      albertel 1430: sub get_id {
                   1431:     my ($parstack,$safeeval)=@_;
                   1432:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1433:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1434:     return $id;
                   1435: }
                   1436: 
1.1       albertel 1437: my %dimension;
                   1438: sub start_Dimension {
                   1439:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1440:     undef(%dimension);
1.19      albertel 1441:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel 1442:     $Apache::bridgetask::dimension=$dim_id;
                   1443:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                   1444:     undef(@Apache::bridgetask::instance);
1.20      albertel 1445:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                   1446: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.54      albertel 1447:     &Apache::lonxml::startredirection();
                   1448:     return &internal_location($dim_id);
1.1       albertel 1449: }
                   1450: 
1.13      albertel 1451: sub get_instance {
1.75      albertel 1452:     my ($dim)=@_;
                   1453:     my $rand_alg=&Apache::lonnet::get_rand_alg();
                   1454:     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
                   1455: 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
                   1456: 	$rand_alg eq '64bit4' ) {
                   1457: 	&Apache::response::pushrandomnumber();
                   1458: 	my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
                   1459: 	my $num=@order;
                   1460: 	my $version=&get_version();
                   1461: 	my $which=($version-1)%$num;
                   1462: 	return $order[$which];
                   1463:     } else {
                   1464: 	my ($version,$previous) = &get_version();
                   1465: 	my $instance = 
                   1466: 	    $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
                   1467: 	if (defined($instance)) { return $instance; }
                   1468: 
                   1469: 	&Apache::response::pushrandomnumber();
                   1470: 	my @instances = @{$dimension{'instances'}};
                   1471: 	# remove disabled instances
                   1472: 	for (my $i=0; $i < $#instances; $i++) {
                   1473: 	    if ($dimension{$instances[$i].'.disabled'}) {
                   1474: 		splice(@instances,$i,1);
                   1475: 		$i--;
                   1476: 	    }
                   1477: 	}
                   1478: 	@instances = &Math::Random::random_permutation(@instances);
                   1479: 	$instance  = $instances[($version-1)%scalar(@instances)];
                   1480: 	$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
                   1481: 	    $instance;
1.79      albertel 1482: 	$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
1.75      albertel 1483: 	&Apache::response::poprandomnumber();
                   1484: 	return $instance;
                   1485:     }
1.13      albertel 1486: }
                   1487: 
1.18      albertel 1488: {
                   1489:     my $last_link;
                   1490:     sub end_Dimension {
                   1491: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.54      albertel 1492: 	my $result=&Apache::lonxml::endredirection();
1.25      albertel 1493: 	my $dim=&get_id($parstack,$safeeval);
1.75      albertel 1494: 	my $instance=&get_instance($dim);
1.25      albertel 1495: 	my $version=&get_version();
1.18      albertel 1496: 	if ($target eq 'web') {
1.47      albertel 1497: 	    @Apache::scripttag::parser_env = @_;
                   1498: 	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
1.76      albertel 1499: 	    my @instances = $instance;
                   1500: 	    if (&Apache::response::showallfoils()) {
                   1501: 		@instances = @{$dimension{'instances'}};
                   1502: 	    }
                   1503: 	    foreach my $instance (@instances) {
                   1504: 		@Apache::scripttag::parser_env = @_;
                   1505: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
                   1506: 		if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
                   1507: 		    $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
                   1508: 
                   1509: 		    my $dim_status=$Apache::lonhomework::history{"resource.$version.$dim.status"};
                   1510: 		    my $mandatory='Mandatory';
                   1511: 		    if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
                   1512: 			$mandatory='Optional';
                   1513: 		    }
                   1514: 		    my $dim_info="<div class='$dim_status'>\n";
                   1515: 		    if ($dim_status eq 'pass') {
                   1516: 			$dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1.54      albertel 1517: 		    }
1.76      albertel 1518: 		    if ($dim_status eq 'fail') {
                   1519: 			$dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1.53      albertel 1520: 		    }
1.76      albertel 1521: 		    my $man_count=0;
                   1522: 		    my $man_passed=0;
                   1523: 		    my $opt_count=0;
                   1524: 		    my $opt_passed=0;
                   1525: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1526: 			if ($dimension{$instance.'.criteria.'.$id.'.mandatory'} 
                   1527: 			    eq 'N') {
                   1528: 			    $opt_count++;
                   1529: 			    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
                   1530: 				$opt_passed++;
                   1531: 			    }
                   1532: 			} else {
                   1533: 			    $man_count++;
                   1534: 			    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
                   1535: 				$man_passed++;
                   1536: 			    }
                   1537: 			}
1.22      albertel 1538: 		    }
1.76      albertel 1539: 		    if ($man_passed eq $man_count) { $man_passed='all'; }
                   1540: 		    my $opt_req=$dimension{$instance.'.optionalrequired'};
                   1541: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                   1542: 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
                   1543: 
                   1544: 		    my $internal_location=&internal_location($dim);
                   1545: 		    $result=~s/\Q$internal_location\E/$dim_info/;
                   1546: 
                   1547: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1548: 			my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
                   1549: 			my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
                   1550: 			my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1551: 			if ($mandatory) {
                   1552: 			    $mandatory='Mandatory';
                   1553: 			} else {
                   1554: 			    $mandatory='Optional';
                   1555: 			}
                   1556: 			if ($status eq 'fail') {
                   1557: 			} elsif ($status eq 'pass') {
                   1558: 			} else {
                   1559: 			    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
                   1560: 			}
                   1561: 			my $status_display=$status;
                   1562: 			$status_display=~s/^([a-z])/uc($1)/e;
                   1563: 			@Apache::scripttag::parser_env = @_;
                   1564: 			$result.='<div class="'.$status.'"><h4>'.$mandatory.
                   1565: 			    ' Criteria</h4><p>';
                   1566: 			@Apache::scripttag::parser_env = @_;
                   1567: 			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1568: 			$result.='</p><p class="grade">'.$status_display.'</p>';
                   1569: 			if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
                   1570: 			    $result.='<p class="comment">'.$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</p>';
                   1571: 			}
                   1572: 			$result.='</div>';
1.22      albertel 1573: 		    }
                   1574: 		}
                   1575: 	    }
1.18      albertel 1576: 	} elsif ($target eq 'webgrade') {
1.47      albertel 1577: 	    # in case of any side effects that we need
                   1578: 	    @Apache::scripttag::parser_env = @_;
                   1579: 	    &Apache::scripttag::xmlparse($dimension{'intro'});
                   1580: 	    @Apache::scripttag::parser_env = @_;
                   1581: 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.18      albertel 1582: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1583: 		my $link='criteria_'.$instance.'_'.$id;
1.25      albertel 1584: 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1.19      albertel 1585: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel 1586: 		    '<a name="'.$link.'" />'.
                   1587: 		    '<a name="next_'.$last_link.'" />'.
1.47      albertel 1588: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
                   1589: 		@Apache::scripttag::parser_env = @_;
                   1590: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1591: 		$result.='</textarea>'.
1.18      albertel 1592: 		    #$dimension{$instance.'.criteria.'.$id}.
                   1593: 		    '</td>'.
1.19      albertel 1594: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.25      albertel 1595: 		    '<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 1596: 		    '</td>'.
                   1597: 		    '<td>'.
1.47      albertel 1598: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
1.30      albertel 1599: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
                   1600: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
                   1601: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1.18      albertel 1602: 		    '</td>'.
                   1603: 		    '<td>'.
                   1604: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel 1605: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
1.18      albertel 1606: 		    '</td></tr>';
                   1607: 		$last_link=$link;
                   1608: 	    }
1.22      albertel 1609: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1610: 	    my $optional_passed=0;
1.20      albertel 1611: 	    my $mandatory_failed=0;
                   1612: 	    my $ungraded=0;
                   1613: 	    my $review=0;
1.19      albertel 1614: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel 1615: 		my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                   1616: 		$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel 1617: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1618: 		if ($status eq 'pass') {
                   1619: 		    if (!$mandatory) { $optional_passed++; }
                   1620: 		} elsif ($status eq 'fail') {
                   1621: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1622: 		} elsif ($status eq 'review') {
                   1623: 		    $review++;
1.20      albertel 1624: 		} elsif ($status eq 'ungraded') {
                   1625: 		    $ungraded++;
1.21      albertel 1626: 		} else {
1.47      albertel 1627: 		    $ungraded++;
1.19      albertel 1628: 		}
                   1629: 	    }
1.20      albertel 1630: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1631: 		$mandatory_failed++;
                   1632: 	    }
1.21      albertel 1633: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1634: 	    if ($review) {
1.25      albertel 1635: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1636: 		    'review';
1.20      albertel 1637: 	    } elsif ($ungraded) {
1.25      albertel 1638: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1639: 		    'ungraded';
1.20      albertel 1640: 	    } elsif ($mandatory_failed) {
1.25      albertel 1641: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1642: 		    'fail';
1.20      albertel 1643: 	    } else {
1.25      albertel 1644: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1645: 		    'pass';
1.20      albertel 1646: 	    }
1.69      albertel 1647: 	} else {
                   1648: 	    # any other targets no output
                   1649: 	    undef($result);
1.13      albertel 1650: 	}
1.18      albertel 1651: 	return $result;
1.1       albertel 1652:     }
                   1653: }
                   1654: 
                   1655: sub start_IntroParagraph {
                   1656:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1657:     my $result;
1.13      albertel 1658:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1659: 	if ($tagstack->[-2] eq 'Dimension') {
                   1660: 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
                   1661: 	
                   1662: 	} elsif ($target eq 'webgrade') {
                   1663: 	    &Apache::lonxml::get_all_text('/introparagraph',$parser);
1.1       albertel 1664: 	}
1.47      albertel 1665: 	
1.1       albertel 1666:     }
                   1667:     return $result;
                   1668: }
                   1669: 
                   1670: sub end_IntroParagraph {
                   1671: }
                   1672: 
                   1673: sub start_Instance {
                   1674:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1675:     my $id=&get_id($parstack,$safeeval);
                   1676:     push(@{$dimension{'instances'}},$id);
                   1677:     push(@Apache::bridgetask::instance,$id);
                   1678:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1679:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1680: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.75      albertel 1681:     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
                   1682:     if (lc($disabled) eq 'yes') {
                   1683: 	$dimension{$id.'.disabled'}='1';
                   1684:     }
1.1       albertel 1685:     return '';
                   1686: }
                   1687: 
                   1688: sub end_Instance {
                   1689: }
                   1690: 
                   1691: sub start_InstanceText {
                   1692:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.47      albertel 1693:     my $instance_id=$Apache::bridgetask::instance[-1];
                   1694:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
1.13      albertel 1695:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1696: 	$dimension{$instance_id.'.text'}=$text;
1.1       albertel 1697:     }
                   1698:     return '';
                   1699: }
                   1700: 
                   1701: sub end_InstanceText {
                   1702:     return '';
                   1703: }
                   1704: 
                   1705: sub start_Criteria {
                   1706:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel 1707:     my $instance_id=$Apache::bridgetask::instance[-1];
1.47      albertel 1708:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
1.21      albertel 1709:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.19      albertel 1710: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1711: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1712: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1713: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1714: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1715:     }
                   1716:     return '';
                   1717: }
                   1718: 
1.47      albertel 1719: sub end_Criteria {
                   1720: }
                   1721: 
1.4       albertel 1722: sub proctor_validation_screen {
                   1723:     my ($slot) = @_;
                   1724:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1725:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 1726:     my $name=&Apache::loncommon::plainname($user,$domain);
                   1727:     
1.4       albertel 1728:     my $msg;
1.11      albertel 1729:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1730: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1731: 	    .'</font></p>';
                   1732:     }
1.47      albertel 1733:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 1734:     my $result= (<<ENDCHECKOUT);
                   1735: <h2>Proctor Validation</h2>
                   1736:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1737:     $msg
1.11      albertel 1738: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel 1739: <input type="hidden" name="validate" value="yes" />
                   1740: <input type="hidden" name="submitted" value="yes" />
                   1741: <table>
1.44      albertel 1742:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 1743:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 1744:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 1745: </table>
                   1746: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 1747: <table border="1">
                   1748:   <tr><td>
                   1749:     <table>
                   1750:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   1751:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 1752:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.44      albertel 1753:       <tr><td>Usename</td><td>$user\@$domain</td></tr>
                   1754:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   1755:     </table>
                   1756:   </tr></td>
                   1757: </table>
1.4       albertel 1758: </form>
                   1759: ENDCHECKOUT
                   1760:     return $result;
                   1761: }
                   1762: 
1.1       albertel 1763: 1;
                   1764: __END__

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