Annotation of loncom/homework/bridgetask.pm, revision 1.146

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.146   ! albertel    4: # $Id: bridgetask.pm,v 1.145 2006/05/09 18:07:56 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 $possible (@allowed) {
1.138     albertel   69: 	my ($puser,$pdom)=(split(':',$possible));
1.4       albertel   70: 	if ($puser eq $user && $pdom eq $domain) {
1.72      albertel   71: 	    my $authenticated=0;
                     72: 	    if ( $slot->{'secret'} =~ /\S/ &&
                     73: 		 $env{'form.proctorpassword'} eq $slot->{'secret'} ) {
                     74: 		$authenticated=1;
                     75: 	    } else {
                     76: 		
                     77: 		my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
                     78: 		if ($authhost ne 'no_host') {
                     79: 		    $authenticated=1;
                     80: 		}
                     81: 	    }
1.81      albertel   82: 	    if ($authenticated && $type eq 'Task') {
1.93      albertel   83: 		# increment version
1.23      albertel   84: 		my $version=
1.90      albertel   85: 		    $Apache::lonhomework::history{'resource.0.version'};
                     86: 		$version++;
1.93      albertel   87: 
                     88: 		#clean out all current results
                     89: 		foreach my $key (keys(%Apache::lonhomework::history)) {
                     90: 		    if ($key=~/^resource\.0\./) {
                     91: 			$Apache::lonhomework::results{$key}='';
                     92: 		    }
                     93: 		}
                     94: 		
                     95: 		#setup new version and who did it
1.90      albertel   96: 		$Apache::lonhomework::results{'resource.0.version'}=$version;
1.89      albertel   97: 		$Apache::lonhomework::results{"resource.$version.0.checkedin"}=
1.138     albertel   98: 		    $user.':'.$domain;
1.89      albertel   99: 		$Apache::lonhomework::results{"resource.$version.0.checkedin.slot"}=
1.22      albertel  100: 		    $slot_name;
1.93      albertel  101: 
1.4       albertel  102: 		return 1;
1.81      albertel  103: 	    } elsif ($authenticated && $type eq 'problem') {
1.90      albertel  104: 		&Apache::lonxml::debug("authed $slot_name");
1.81      albertel  105: 		$Apache::lonhomework::results{"resource.0.checkedin"}=
1.138     albertel  106: 		    $user.':'.$domain;
1.81      albertel  107: 		$Apache::lonhomework::results{"resource.0.checkedin.slot"}=
                    108: 		    $slot_name;
1.4       albertel  109: 	    }
                    110: 	}
                    111:     }
                    112:     return 0;
                    113: }
                    114: 
1.25      albertel  115: sub get_version {
1.29      albertel  116:     my ($version,$previous);
1.25      albertel  117:     if ($env{'form.previousversion'} && 
1.36      albertel  118: 	$env{'form.previousversion'} ne 'current' &&
1.89      albertel  119: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
1.29      albertel  120: 	$version=$env{'form.previousversion'};
                    121: 	$previous=1;
                    122:     } else {
1.89      albertel  123: 	$version=$Apache::lonhomework::history{'resource.0.version'};
1.29      albertel  124: 	$previous=0;
                    125:     }
                    126:     if (wantarray) {
                    127: 	return ($version,$previous);
1.25      albertel  128:     }
1.29      albertel  129:     return $version;
1.25      albertel  130: }
                    131: 
1.8       albertel  132: sub add_previous_version_button {
1.25      albertel  133:     my ($status)=@_;
1.8       albertel  134:     my $result;
1.89      albertel  135:     if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
1.25      albertel  136: 	return '';
                    137:     }
1.89      albertel  138:     if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
1.29      albertel  139: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  140: 	return '';
                    141:     }
1.29      albertel  142:     my $version=&get_version();
                    143:     if ($env{'form.previousversion'} ne '' &&
                    144: 	$env{'form.previousversion'} eq $version) {
                    145: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
                    146: 	    "</h3>\n";
                    147:     }
                    148:     my @to_show;
1.89      albertel  149:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.0.version'}) {
                    150: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.0.status'})) {
1.29      albertel  151: 	    push(@to_show,$test_version);
                    152: 	}
                    153:     }
                    154:     my $list='<option>'.
                    155: 	join("</option>\n<option>",@to_show).
                    156: 	     "</option>\n";
1.36      albertel  157:     $list.='<option value="current">'.&mt('Current').'</option>';
1.115     albertel  158:     $result.='<form name="getprevious" method="post" action="';
1.29      albertel  159:     my $uri=$env{'request.uri'};
                    160:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    161:     $result.=$uri.'">'.
                    162: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
                    163: <option>'.&mt('Pick one').'</option>
                    164: '.$list.'
                    165: </select>')."</form>";
1.8       albertel  166:     return $result;
                    167: }
                    168: 
1.13      albertel  169: sub add_grading_button {
1.59      albertel  170:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    171:     my $cnum=$env{'course.'.$cid.'.num'};
                    172:     my $cdom=$env{'course.'.$cid.'.domain'};
1.144     albertel  173:     my %sections = &Apache::loncommon::get_sections($cdom,$cnum);
                    174: 
1.59      albertel  175:     my $size=5;
                    176:     if (scalar(keys(%sections)) < 3) {
                    177: 	$size=scalar(keys(%sections))+2;
                    178:     }
1.122     albertel  179:     my $sec_select = '<select multiple="multiple" name="chosensections" size="'.$size.'">'."\n";
1.59      albertel  180:     $sec_select .= "<option value='all' selected='selected'>all</option>\n";
                    181:     foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
1.122     albertel  182: 	$sec_select .= "<option value=\"$sec\">$sec</option>\n";
1.59      albertel  183:     }
                    184:     $sec_select .= "<option value='none'>none</option></select>\n";
                    185:     
1.29      albertel  186:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  187: 	&mt("Get a submission to grade").'" />';
                    188:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.40      albertel  189:     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.34      albertel  190: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
1.106     albertel  191: 	$result.='<table><tr>';
                    192: 	$result.='<td rowspan="4">Specify a section: </td><td rowspan="4">'.$sec_select.'</td>';
                    193: 	$result.='<td>'.' <input type="submit" name="reviewagrading" value="'.
                    194: 	    &mt("Select an entry from the grading queue:").'" /> ';
1.34      albertel  195: 
1.107     albertel  196: 	$result.= &mt("[_1] entries, [_2] ready, [_3] being graded",$entries,$ready,$locks).' </td></tr>'."\n";
1.34      albertel  197: 
                    198: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
1.106     albertel  199: 	$result.='<tr><td>'.
                    200: 	    ' <input type="submit" name="reviewasubmission" value="'.
                    201: 	    &mt("Select an entry from the review queue:").'" /> ';
                    202: 	$result.=&mt("[_1] entries, [_2] ready, [_3] being graded",
                    203: 		     $entries,$ready,$locks).'</td></tr>'."\n";
                    204: 	$result.='<tr><td> <input type="submit" name="regradeasubmission" value="'.
                    205: 	    &mt("List of user's grade status").'" /> </td></tr></table>'."\n";
1.105     albertel  206: 	$result.='<p> <input type="submit" name="regradeaspecificsubmission" value="'.
1.106     albertel  207: 	    &mt("Regrade specific user:").'" />'."\n";
1.105     albertel  208: 	$result.='<input type="text" size="12" name="gradinguser" />';
                    209: 	$result.=&Apache::loncommon::select_dom_form($env{'user.domain'},
                    210: 						     'gradingdomain');
                    211: 	$result.=' '.
                    212: 	    &Apache::loncommon::selectstudent_link('gradesubmission',
                    213: 						   'gradinguser',
                    214: 						   'gradingdomain');
                    215: 	$result.=&Apache::loncommon::studentbrowser_javascript();
1.123     albertel  216: 	$result.= '</p>';
1.144     albertel  217:     }
1.13      albertel  218:     return $result;
                    219: }
                    220: 
1.22      albertel  221: sub add_request_another_attempt_button {
1.38      albertel  222:     my ($text)=@_;
                    223:     if (!$text) { $text="Request another attempt"; }
1.25      albertel  224:     my $result;
1.36      albertel  225:     my $symb=&Apache::lonnet::symbread();
1.37      albertel  226:     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
1.38      albertel  227:     my $action='get_reservation';
1.37      albertel  228:     if ($slot_name) {
1.38      albertel  229: 	$text="Change reservation.";
                    230: 	$action='change_reservation';
1.37      albertel  231: 	my $description=&Apache::slotrequest::get_description($slot_name,
                    232: 							      $slot);
                    233: 	$result.=(<<STUFF);
                    234: <p> Will be next available: $description </p>
                    235: STUFF
                    236:     }
1.38      albertel  237:     
                    238:     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
                    239:     $symb=&Apache::lonnet::escape($symb);
1.115     albertel  240:     $result.='<form method="post" action="/adm/slotrequest">'.
1.38      albertel  241: 	'<input type="hidden" name="symb" value="'.$symb.'" />'.
                    242: 	'<input type="hidden" name="command" value="'.$action.'" />'.
                    243: 	'<input type="submit" name="requestattempt" value="'.
                    244: 	&mt($text).'" />'.
                    245: 	'</form>';
1.25      albertel  246:     return $result;
1.22      albertel  247: }
                    248: 
1.30      albertel  249: sub preserve_grade_info {
                    250:     my $result;
                    251:     # if we are viewing someone else preserve that info
                    252:     if (defined $env{'form.grade_symb'}) {
                    253: 	foreach my $field ('symb','courseid','domain','username') {
                    254: 	    $result .= '<input type="hidden" name="grade_'.$field.
                    255: 		'" value="'.$env{"form.grade_$field"}.'" />'."\n";
                    256: 	}
                    257:     }
                    258:     return $result;
                    259: }
                    260: 
1.53      albertel  261: sub style {
1.125     albertel  262:     my ($target) = @_;
                    263:     if ($target eq 'web'
                    264: 	|| $target eq 'webgrade') {
                    265: 	return (<<STYLE);
1.126     albertel  266: <link rel="stylesheet" type="text/css" href="/res/adm/includes/task.css" />
1.53      albertel  267: STYLE
1.125     albertel  268:     }
                    269:     return;
1.53      albertel  270: }
                    271: 
1.54      albertel  272: sub show_task {
                    273:     my ($status,$previous)=@_;
                    274:     if (!$previous && (
                    275: 		       ( $status eq 'CLOSED' ) ||
                    276: 		       ( $status eq 'BANNED') ||
                    277: 		       ( $status eq 'UNAVAILABLE') ||
                    278: 		       ( $status eq 'NOT_IN_A_SLOT') ||
                    279: 		       ( $status eq 'NEEDS_CHECKIN') ||
                    280: 		       ( $status eq 'WAITING_FOR_GRADE') ||
                    281: 		       ( $status eq 'INVALID_ACCESS') )) {
                    282: 	return 0;
                    283:     }
1.64      albertel  284:     if ($env{'form.donescreen'}) { return 0; }
1.54      albertel  285:     return 1;
                    286: }
                    287: 
                    288: sub internal_location {
                    289:     my ($id)=@_;
                    290:     return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
                    291: }
                    292: 
1.60      albertel  293: sub submission_time_stamp {
                    294:     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    295:     my $submissiontime;
1.89      albertel  296:     my $version=$Apache::lonhomework::history{'resource.0.version'};
1.60      albertel  297:     for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
                    298: 	if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})) {
                    299: 	    $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
                    300: 	}
                    301:     }
                    302:     my $result;
                    303:     if ($submissiontime) {
1.89      albertel  304: 	my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.0.checkedin.slot'};
1.60      albertel  305: 	my %slot=&Apache::lonnet::get_slot($slot_name);
                    306: 	my $diff = $slot{'endtime'} - $submissiontime;
1.71      albertel  307: 	my ($color,$when)=('#FF6666','after');
                    308: 	if ($diff > 0) { ($color,$when)=('#336600','before'); }
1.60      albertel  309: 	my $info;
                    310: 	if ($diff%60) { $info=($diff%60).' seconds'; }
                    311: 	$diff=int($diff/60);
                    312: 	if ($diff%60) { $info=($diff%60).' minutes '.$info; }
                    313: 	$diff=int($diff/60);
                    314: 	if ($diff) {    $info=$diff.' hours '.$info; }
                    315: 	$result='<p><font color="'.$color.'">'.
                    316: 	    &mt('Student submitted [_1] [_2] the deadline. 
                    317:                  (Submission was at [_3], end of period was [_4].)',
                    318: 		$info,$when,scalar(localtime($submissiontime)),
                    319: 		scalar(localtime($slot{'endtime'}))).
                    320: 		'</font></p>';
                    321:     }
                    322:     return $result;
                    323: }
                    324: 
1.119     albertel  325: sub file_list {
                    326:     my ($files,$uname,$udom) = @_;
                    327:     if (!defined($uname) || !defined($udom)) {
                    328: 	(undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                    329:     }
1.70      albertel  330:     my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
1.119     albertel  331: 
1.120     albertel  332:     my $file_list="<ul class=\"LC_GRADING_handininfo\">\n";
1.119     albertel  333:     foreach my $partial_file (split(',',$files)) {
1.70      albertel  334: 	my $file=$file_url.$partial_file;
                    335: 	$file=~s|/+|/|g;
                    336: 	&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1.73      albertel  337: 	$file_list.='<li><nobr><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
1.109     albertel  338: 	    &Apache::loncommon::icon($file).'" border="0"> '.$file.
1.70      albertel  339: 	    '</a></nobr></li>'."\n";
                    340:     }
                    341:     $file_list.="</ul>\n";
1.119     albertel  342:     return $file_list;
                    343: }
                    344: 
                    345: sub webgrade_standard_info {
                    346:     my ($version)=&get_version();
                    347: 
                    348:     my $file_list = &file_list($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"});
1.70      albertel  349: 
1.118     albertel  350:     my %lt=&Apache::lonlocal::texthash('done' => 'Next Item',
                    351: 				       'stop' => 'Quit Grading',
1.143     albertel  352: 				       'fail' => 'Fail Rest',
1.70      albertel  353: 				       );
                    354: 				       
                    355:     my $result=<<INFO;
1.120     albertel  356:   <div class="LC_GRADING_maincontrols">
1.111     albertel  357:     <input type="submit" name="next" value="$lt{'done'}" />
                    358:     <input type="submit" name="stop" value="$lt{'stop'}" />
1.143     albertel  359:     <input type="button" name="fail" value="$lt{'fail'}" 
                    360:            onclick="javascript:onFailRest()" />
1.111     albertel  361:   </div>
1.70      albertel  362:   $file_list
                    363: INFO
                    364:     return $result;
                    365: }
                    366: 
1.1       albertel  367: sub start_Task {
1.87      albertel  368:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel  369: 
1.4       albertel  370:     my ($status,$accessmsg,$slot);
1.16      albertel  371:     if ($target ne 'webgrade') {
1.70      albertel  372: 	&Apache::structuretags::init_problem_globals('Task');
1.16      albertel  373: 	&Apache::structuretags::initialize_storage();
                    374: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.74      albertel  375: 	if ($env{'request.state'} eq 'construct') {
                    376: 	    &Apache::structuretags::setup_rndseed($safeeval);
                    377: 	}
1.16      albertel  378:     } 
                    379: 
1.4       albertel  380:     $Apache::lonhomework::parsing_a_task=1;
1.141     albertel  381: 
                    382:     my $name;
                    383:     if ($target eq 'web' || $target eq 'webgrade') {
                    384: 	$name = &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    385:     }
                    386: 
1.145     albertel  387:     my ($result,$form_tag_start);
                    388:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
                    389: 	|| $target eq 'edit') {
                    390: 	($result,$form_tag_start) =
                    391: 	    &Apache::structuretags::page_start($target,$token,$tagstack,
                    392: 					       $parstack,$parser,$safeeval,
1.146   ! albertel  393: 					       $name,&style($target));
1.145     albertel  394: 	$result .= '<div class="LC_task">'."\n";
                    395:     }
1.123     albertel  396: 
1.74      albertel  397:     if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.13      albertel  398: 	if ($Apache::lonhomework::modifygrades) {
1.141     albertel  399: 	    $result.='<form name="gradesubmission" method="post" action="';
1.13      albertel  400: 	    my $uri=$env{'request.uri'};
                    401: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.141     albertel  402: 	    $result.=$uri.'">'.&add_grading_button()."</form>";
1.38      albertel  403: 	    my $symb=&Apache::lonnet::symbread();
1.40      albertel  404: 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.141     albertel  405: 		$result.='<form method="post" name="slotrequest" action="/adm/slotrequest">'.
1.40      albertel  406: 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
                    407: 		    '<input type="hidden" name="command" value="showslots" />'.
                    408: 		    '<input type="submit" name="requestattempt" value="'.
                    409: 		    &mt('Show Slot list').'" />'.
                    410: 		    '</form>';
1.108     albertel  411: 		my $target_id = 
                    412: 		    &Apache::lonstathelpers::make_target_id({symb => $symb,
                    413: 							     part => '0'});
1.141     albertel  414: 		$result.='<form method="post" name="gradingstatus" action="/adm/statistics">'.
1.108     albertel  415: 		    '<input type="hidden" name="problemchoice" value="'.$target_id.'" />'.
                    416: 		    '<input type="hidden" name="reportSelected" value="grading_analysis" />'.
                    417: 		    '<input type="submit" name="grading" value="'.
                    418: 		    &mt('Show Grading Status').'" />'.
                    419: 		    '</form>';
1.40      albertel  420: 	    }
1.13      albertel  421: 	}
1.8       albertel  422:     }
1.74      albertel  423:     if ($target eq 'web' && $env{'request.state'} eq 'construct') {
                    424: 	$form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
                    425:     }
1.21      albertel  426:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  427: 	$target eq 'tex') {
1.29      albertel  428: 	my ($version,$previous)=&get_version();
1.14      albertel  429: 	($status,$accessmsg,my $slot_name,$slot) = 
1.81      albertel  430: 	    &Apache::lonhomework::check_slot_access('0','Task');
1.9       albertel  431: 	push(@Apache::inputtags::status,$status);
1.14      albertel  432: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  433: 	my $expression='$external::datestatus="'.$status.'";';
1.89      albertel  434: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.0.solved"}.'";';
1.1       albertel  435: 	&Apache::run::run($expression,$safeeval);
                    436: 	&Apache::lonxml::debug("Got $status");
1.141     albertel  437: 	$result.=&add_previous_version_button($status);
1.54      albertel  438: 	if (!&show_task($status,$previous)) {
1.87      albertel  439: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.1       albertel  440: 	    if ( $target eq "web" ) {
1.74      albertel  441: 		if ($env{'request.state'} eq 'construct') {
                    442: 		    $result.=$form_tag_start;
                    443: 		}
1.4       albertel  444: 		my $msg;
1.1       albertel  445: 		if ($status eq 'UNAVAILABLE') {
                    446: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  447: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    448: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38      albertel  449: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  450: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    451: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    452: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  453: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    454: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.64      albertel  455: 		} elsif ($env{'form.donescreen'}) {
                    456: 		    my $title=&Apache::lonnet::gettitle();
1.67      albertel  457: 		    my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
1.114     albertel  458: 		    my (undef,undef,$domain,$user)=
                    459: 			&Apache::lonxml::whichuser();
                    460: 		    my $files = '<ul>';
                    461: 		    foreach my $file (@files) {
                    462: 			my $url="/uploaded/$domain/$user/portfolio$file";
1.130     albertel  463: 			if (! &Apache::lonnet::stat_file($url)) {
                    464: 			    $file = &mt('<font color="red"> Nonexistant file:</font> <tt>[_1]</tt>',$file);
                    465: 			} else {
                    466: 			    $file = '<tt>'.$file.'</tt>';
                    467: 			}
1.114     albertel  468: 			$files .= '<li>'.$file.'</li>';
                    469: 		    }
                    470: 		    $files.='</ul>';
                    471: 
1.64      albertel  472: 		    $result.=<<DONESCREEN;
                    473: <h2>$title</h2>
                    474: <p> Files submitted: $files </p>
1.67      albertel  475: <p> You are now done with this Bridge Task </p>
1.64      albertel  476: <hr />
                    477: <p> <a href="/adm/logout">Logout</a> </p>
                    478: <p> <a href="/adm/roles">Change to a different course</a> </p>
                    479: DONESCREEN
1.1       albertel  480: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    481: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    482: 		}
                    483: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    484: 		    $msg.='The problem '.$accessmsg;
                    485: 		}
                    486: 		$result.=$msg.'<br />';
                    487: 	    } elsif ($target eq 'tex') {
                    488: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    489: 		if ($status eq 'UNAVAILABLE') {
                    490: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    491: 		} else {
                    492: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    493: 		}
1.22      albertel  494: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  495: 		if ($status eq 'NEEDS_CHECKIN') {
1.83      albertel  496: 		    if(&proctor_check_auth($slot_name,$slot,'Task')
                    497: 		       && defined($Apache::inputtags::slot_name)) {
1.77      albertel  498: 			my $result=&add_to_queue('gradingqueue',
1.82      albertel  499: 						 [$Apache::inputtags::slot_name]);
1.77      albertel  500: 			&Apache::lonxml::debug("add_to_queue said $result");
                    501: 		    }
1.4       albertel  502: 		}
1.1       albertel  503: 	    }
                    504: 	} elsif ($target eq 'web') {
1.141     albertel  505: 
1.57      albertel  506: 	    $result.=&preserve_grade_info();
                    507: 	    $result.=&internal_location();
1.36      albertel  508: 	    $result.=$form_tag_start.
                    509: 		'<input type="hidden" name="submitted" value="yes" />';
1.54      albertel  510: 	    &Apache::lonxml::startredirection();
1.1       albertel  511: 	}
1.21      albertel  512:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    513: 	      $target eq 'webgrade') {
1.32      albertel  514: 	my $webgrade='yes';
1.21      albertel  515: 	if ($target eq 'webgrade') {
1.141     albertel  516: 	    $result.= "\n".'<div class="LC_GRADING_task">'."\n".
1.124     albertel  517: 		'<script type="text/javascript" 
1.126     albertel  518:                          src="/res/adm/includes/task_grading.js"></script>';
1.49      albertel  519: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
                    520: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  521: 	}
1.33      albertel  522: 	# FIXME Blast! still need to reorg this, need to reshow the
                    523:         #       queue being reviewed once done with the grade pass...
                    524:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    525:         #       perhaps do a search if there is a key that is mine and if
                    526:         #       there isn't reshow the queue....
1.105     albertel  527: 	my ($todo,$status_code,$msg)=&get_key_todo($target);
1.33      albertel  528: 
                    529: 	if ($todo) {
                    530: 	    &setup_env_for_other_user($todo,$safeeval);
                    531: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    532: 	    $result.="\n".'<table><tr><td>Found '.
                    533: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    534: 	    $form_tag_start.=
                    535: 		'<input type="hidden" name="gradingkey" value="'.
                    536: 		&Apache::lonnet::escape($todo).'" />';
                    537: 	    $Apache::bridgetask::queue_key=$todo;
                    538: 	    &Apache::structuretags::initialize_storage();
                    539: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.110     albertel  540: 	    if ($target eq 'webgrade' && $status_code eq 'selected') {
                    541: 		$form_tag_start.=
                    542: 		    '<input type="hidden" name="queuemode" value="selected" />';
1.33      albertel  543: 	    }
1.15      albertel  544: 	} else {
1.33      albertel  545: 	    if ($target eq 'webgrade') {
                    546: 		$result.="\n";
1.81      albertel  547: 		my $back='<p><a href="/adm/flip?postdata=return:">'.
                    548: 		    &mt('Return to resource').'</a></p>';
1.33      albertel  549: 		if      ($status_code eq 'stop') {
1.81      albertel  550: 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
1.33      albertel  551: 		} elsif ($status_code eq 'lock_failed') {
1.105     albertel  552: 		    $result.='<b>'.&mt("Failed to lock the requested record.")
1.81      albertel  553: 			.'</b>'.$back;
1.33      albertel  554: 		} elsif ($status_code eq 'unlock') {
1.81      albertel  555: 		    $result.='<b>'.&mt("Unlocked the requested record.")
                    556: 			.'</b>'.$back;
1.33      albertel  557: 		    $result.=&show_queue($env{'form.queue'},1);
                    558: 		} elsif ($status_code eq 'show_list') {
                    559: 		    $result.=&show_queue($env{'form.queue'},1);
1.49      albertel  560: 		} elsif ($status_code eq 'select_user') {
                    561: 		    $result.=&select_user();
1.95      albertel  562: 		} elsif ($status_code eq 'unable') {
                    563: 		    $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
1.105     albertel  564: 		} elsif ($status_code eq 'not_allowed') {
                    565: 		    $result.='<b>'.&mt('Not allowed to grade the requested user.').' '.$msg.'</b>'.$back;
1.33      albertel  566: 		} else {
1.81      albertel  567: 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
1.32      albertel  568: 		}
1.21      albertel  569: 	    }
1.33      albertel  570: 	    $webgrade='no';
1.87      albertel  571: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.32      albertel  572: 	}
                    573: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
1.61      albertel  574: 	    if ($webgrade eq 'yes') {
                    575: 		$result.=&submission_time_stamp();
                    576: 	    }
1.32      albertel  577: 	    $result.=$form_tag_start;
                    578: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    579: 		$webgrade.'" />';
                    580: 	    $result.='<input type="hidden" name="queue" value="'.
                    581: 		$env{'form.queue'}.'" />';
1.52      albertel  582: 	    if ($env{'form.regrade'}) {
                    583: 		$result.='<input type="hidden" name="regrade" value="'.
                    584: 		    $env{'form.regrade'}.'" />';
                    585: 	    }
1.62      albertel  586: 	    if ($env{'form.chosensections'}) {
                    587: 		my @chosen_sections=
                    588: 		    &Apache::loncommon::get_env_multiple('form.chosensections');
                    589: 		foreach my $sec (@chosen_sections) {
                    590: 		    $result.='<input type="hidden" name="chosensections" 
                    591:                                value="'.$sec.'" />';
                    592: 		}
                    593: 	    }
1.70      albertel  594: 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
1.15      albertel  595: 	}
1.110     albertel  596: 	if ($target eq 'webgrade') {
1.120     albertel  597: 	    $result.="\n".'<div id="LC_GRADING_criterialist">';
1.110     albertel  598: 	}
1.74      albertel  599:     } elsif ($target eq 'edit') {
1.141     albertel  600: 	$result.=$form_tag_start.
1.74      albertel  601: 	    &Apache::structuretags::problem_edit_header();
                    602: 	$Apache::lonxml::warnings_error_header=
                    603: 	    &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 />";
                    604: 	my $temp=&Apache::edit::insertlist($target,$token);
                    605: 	$result.=$temp;
1.1       albertel  606:     } else {
                    607: 	# page_start returned a starting result, delete it if we don't need it
                    608: 	$result = '';
                    609:     }
                    610:     return $result;
                    611: }
                    612: 
1.32      albertel  613: sub get_key_todo {
                    614:     my ($target)=@_;
                    615:     my $todo;
1.33      albertel  616: 
                    617:     if (defined($env{'form.reviewasubmission'})) {
1.54      albertel  618: 	&Apache::lonxml::debug("review a submission....");
1.33      albertel  619: 	$env{'form.queue'}='reviewqueue';
                    620: 	return (undef,'show_list');
                    621:     }
                    622: 
                    623:     if (defined($env{'form.reviewagrading'})) {
                    624: 	&Apache::lonxml::debug("review a grading....");
                    625: 	$env{'form.queue'}='gradingqueue';
                    626: 	return (undef,'show_list');
                    627:     }
                    628: 
1.49      albertel  629:     if (defined($env{'form.regradeasubmission'})) {
                    630: 	&Apache::lonxml::debug("regrade a grading....");
                    631: 	$env{'form.queue'}='none';
                    632: 	return (undef,'select_user');
                    633:     }
                    634: 
1.105     albertel  635: 
1.138     albertel  636:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.105     albertel  637: 
                    638:     #need to try both queues..
                    639:     if (defined($env{'form.regradeaspecificsubmission'}) &&
                    640: 	defined($env{'form.gradinguser'})               &&
                    641: 	defined($env{'form.gradingdomain'})               ) {
                    642: 	my ($symb,$cid)=&Apache::lonxml::whichuser();
                    643: 	my $cnum  = $env{'course.'.$cid.'.num'};
                    644: 	my $cdom  = $env{'course.'.$cid.'.domain'};
                    645: 	my $uname = $env{'form.gradinguser'};
                    646: 	my $udom  = $env{'form.gradingdomain'};
                    647: 
                    648: 	my $gradingkey=&encode_queue_key($symb,$udom,$uname);
                    649: 
                    650: 	my $queue;
                    651: 
                    652: 	if      (&in_queue('gradingqueue',$symb,$cdom,$cnum,$udom,$uname)) {
                    653: 	    $env{'form.queue'} = $queue = 'gradingqueue';
                    654: 	} elsif (&in_queue('reviewqueue' ,$symb,$cdom,$cnum,$udom,$uname)) {
                    655: 	    $env{'form.queue'} = $queue = 'reviewqueue';
                    656: 	}
                    657: 	
                    658: 	if (!$queue) {
                    659: 	    $env{'form.queue'} = $queue = 'none';
                    660: 	    #not queued so doing either a re or pre grade
                    661: 	    return ($gradingkey);
                    662: 	}
                    663: 
                    664: 	my $who=&queue_key_locked($queue,$gradingkey);
                    665: 	if ($who eq $me) {
                    666: 	    #already have the lock
                    667: 	    $env{'form.gradingkey'}=&Apache::lonnet::escape($gradingkey);
                    668: 	    return ($gradingkey);
                    669: 	}
                    670: 	
                    671: 	if (!defined($who)) {
                    672: 	    if (&lock_key($queue,$gradingkey)) {
                    673: 		return ($gradingkey);
                    674: 	    } else {
                    675: 		return (undef,'lock_failed');
                    676: 	    }
                    677: 	}
                    678: 
                    679: 	#otherwise (defined($who) && $who ne $me) some else has it...
                    680: 	return (undef,'not_allowed',
                    681: 		&mt('Another user ([_1]) currently has the record for [_2] locked.',
1.138     albertel  682: 		    $who,$env{'form.gradinguser'}.':'.$env{'form.gradingdomain'}));
1.105     albertel  683:     }
                    684: 
                    685: 
1.32      albertel  686:     my $queue=$env{'form.queue'};
1.33      albertel  687: 
1.32      albertel  688:     if (!defined($queue)) {
                    689: 	$env{'form.queue'}=$queue='gradingqueue';
                    690:     }
1.33      albertel  691: 
1.32      albertel  692:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  693: 
1.49      albertel  694:     if ($env{'form.queue'} eq 'none') {
                    695: 	if (defined($env{'form.gradingkey'})) {
                    696: 	    if ($target eq 'webgrade') {
                    697: 		if ($env{'form.stop'}) {
                    698: 		    return (undef,'stop');
                    699: 		} elsif ($env{'form.next'}) {
1.59      albertel  700: 		    return (undef,'select_user');
1.49      albertel  701: 		}
                    702: 	    }
                    703: 	    return ($gradingkey,'selected');
                    704: 	} else {
1.59      albertel  705: 	    return (undef,'select_user');
1.49      albertel  706: 	}
                    707:     }
1.32      albertel  708:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  709: 	&& !defined($env{'form.gradingaction'}) 
                    710: 	&& $env{'form.queuemode'} eq 'selected') {
                    711: 	
                    712: 	my $who=&queue_key_locked($queue,$gradingkey);
                    713: 	if ($who eq $me) {
                    714: 	    &Apache::lonxml::debug("Found a key was given to me");
                    715: 	    return ($gradingkey,'selected');
                    716: 	} else {
                    717: 	    return (undef,'show_list');
                    718: 	}
                    719: 
                    720:     }
                    721: 
                    722:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    723: 	if ($env{'form.gradingaction'} eq 'resume') {
                    724: 	    delete($env{'form.gradingaction'});
                    725: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  726: 	    return ($gradingkey);
1.33      albertel  727: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    728: 	    &Apache::lonxml::debug("Unlocking a key ".
                    729: 				     &check_queue_unlock($queue,$gradingkey,1));
                    730: 	    return (undef,'unlock');
                    731: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    732: 	    &Apache::lonxml::debug("Locking a key");
                    733: 	    if (&lock_key($queue,$gradingkey)) {
                    734: 		&Apache::lonxml::debug("Success $queue");
                    735: 		return ($gradingkey);
                    736: 	    }
                    737: 	    &Apache::lonxml::debug("Failed $queue");
                    738: 	    return (undef,'lock_failed');
1.32      albertel  739: 	}
                    740:     }
1.33      albertel  741: 
                    742:     if ($env{'form.queuemode'} ne 'selected') {
                    743: 	# don't get something new from the queue if they hit the stop button
                    744:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    745: 	    && !$env{'form.gradingaction'}) {
                    746: 	    &Apache::lonxml::debug("Getting anew $queue");
                    747: 	    return (&get_from_queue($queue));
                    748: 	} else {
                    749: 	    return (undef,'stop');
                    750: 	}
1.32      albertel  751:     }
1.33      albertel  752:     return (undef,undef)
1.32      albertel  753: }
1.94      albertel  754: 
                    755: sub minimize_storage {
                    756:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    757: 	if ($key =~ /regrader$/) { next; }
                    758: 	if ($Apache::lonhomework::results{$key} eq
                    759: 	    $Apache::lonhomework::history{$key}) {
                    760: 	    delete($Apache::lonhomework::results{$key});
                    761: 	}
                    762:     }
                    763: }
                    764: 
1.1       albertel  765: sub end_Task {
                    766:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    767:     my $result='';
                    768:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  769:     my ($version,$previous)=&get_version();
1.1       albertel  770:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  771: 	$target eq 'tex') {
1.69      albertel  772: 	if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
1.1       albertel  773: 	    if ($target eq 'web') {
1.54      albertel  774: 		if (&show_task($status,$previous)) {
                    775: 		    $result.=&Apache::lonxml::endredirection();
                    776: 		}
1.64      albertel  777: 		if ($status eq 'CAN_ANSWER' && !$previous && 
                    778: 		    !$env{'form.donescreen'}) {
1.15      albertel  779: 		    $result.="\n".'<table border="1">'.
1.28      albertel  780: 			&Apache::inputtags::file_selector("$version.0",
                    781: 							  "bridgetask","*",
1.46      albertel  782: 							  'portfolioonly',
                    783: 							  '
                    784: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    785: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  786: 							  "</table>";
1.77      albertel  787: 		}
1.78      albertel  788: 		if (!$previous && $status ne 'SHOW_ANSWER' &&
                    789: 		    &show_task($status,$previous)) {
1.9       albertel  790: 		    $result.=&Apache::inputtags::gradestatus('0');
1.64      albertel  791: 		    $result.='</form>';
1.116     albertel  792: 		    my $action = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.64      albertel  793: 		    $result.=<<DONEBUTTON;
1.115     albertel  794: <form name="done" method="post" action="$action">
1.64      albertel  795:    <input type="hidden" name="donescreen" value="1" />
                    796:    <input type="submit" value="Done" />
                    797: </form>
                    798: DONEBUTTON
1.77      albertel  799:                 }
1.56      albertel  800: 		if (&show_task($status,$previous) &&
1.89      albertel  801: 		    $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
                    802: 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
1.54      albertel  803: 		    my $title=&Apache::lonnet::gettitle();
1.80      albertel  804: 
                    805: 		    my $slot_name=
1.89      albertel  806: 			$Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
1.80      albertel  807: 		    my %slot=&Apache::lonnet::get_slot($slot_name);
1.55      albertel  808: 		    my $start_time=
                    809: 			&Apache::lonlocal::locallocaltime($slot{'starttime'});
1.54      albertel  810: 
1.116     albertel  811: 		    my $status = "\n<div class='LC_$bt_status LC_criteria'>\n";
1.54      albertel  812: 		    
                    813: 		    if ($bt_status eq 'pass')  {
                    814: 			$status.='<h2>You passed the '.$title.' given on '.
1.80      albertel  815: 			    $start_time.'</h2>';
1.54      albertel  816: 		    }
                    817: 		    if ($bt_status eq 'fail')  {
                    818: 			$status.='<h2>You did not pass the '.$title.' given on '.
1.80      albertel  819: 			    $start_time.'</h2>';
1.54      albertel  820: 			if (!$previous) {
                    821: 			    $status.=&add_request_another_attempt_button();
                    822: 			}
                    823: 		    }
                    824: 		    my $man_count=0;
                    825: 		    my $opt_count=0;
                    826: 		    my $opt_passed=0;
                    827: 		    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    828: 			if ($Apache::bridgetask::dimensionmandatory{$dim_id}
                    829: 			    eq 'N') {
                    830: 			    $opt_count++;
1.89      albertel  831: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim_id.status"} eq 'pass') {
1.54      albertel  832: 				$opt_passed++;
                    833: 			    }
                    834: 			} else {
                    835: 			    $man_count++;
                    836: 			}
                    837: 		    }
                    838: 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
                    839: 							 $parstack,$safeeval);
                    840: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
1.99      albertel  841: 		    $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components, of which you passed [_4].',$man_count,$opt_req,$opt_count,$opt_passed)."</p></div>\n";
1.54      albertel  842: 
                    843: 		    my $internal_location=&internal_location();
                    844: 		    $result=~s/\Q$internal_location\E/$status/;
                    845: 		}
1.13      albertel  846: 	    } 
1.117     albertel  847: 	    if ($target eq 'web') {
1.142     albertel  848: 		$result.="\n</div>\n".
                    849: 		    &Apache::loncommon::end_page({'discussion' => 1});
1.1       albertel  850: 	    }
                    851: 	}
1.29      albertel  852: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  853: 	    my $award='SUBMITTED';
1.28      albertel  854: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  855: 						    'portfiles',\$award);
1.14      albertel  856: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  857: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    858: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    859: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    860: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    861: 
                    862: 		$Apache::lonhomework::results{"resource.0.award"}=
                    863: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    864: 		    $award;
1.51      albertel  865: 		$Apache::lonhomework::results{"resource.0.submission"}=
                    866: 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
1.64      albertel  867: 	    } else {
                    868: 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
1.77      albertel  869: 		$award = '';
1.10      albertel  870: 	    }
1.4       albertel  871: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    872: 	    &Apache::structuretags::finalize_storage();
1.83      albertel  873: 	    if ($award eq 'SUBMITTED'
                    874: 		&& defined($Apache::inputtags::slot_name)) {
1.82      albertel  875: 		&add_to_queue('gradingqueue',[$Apache::inputtags::slot_name]);
1.14      albertel  876: 	    }
1.79      albertel  877: 	} elsif ($Apache::lonhomework::results{'INTERNAL_store'}) {
                    878: 	    &Apache::structuretags::finalize_storage();
1.1       albertel  879: 	}
1.32      albertel  880: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  881: 	    my $optional_required=
                    882: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    883: 					   $safeeval);
                    884: 	    my $optional_passed=0;
                    885: 	    my $mandatory_failed=0;
                    886: 	    my $ungraded=0;
                    887: 	    my $review=0;   
1.21      albertel  888: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  889: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    890: 		my $status=
1.89      albertel  891: 		    $Apache::lonhomework::results{"resource.$version.0.$dim_id.status"};
1.20      albertel  892: 		my $mandatory=
                    893: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    894: 		if ($status eq 'pass') {
                    895: 		    if (!$mandatory) { $optional_passed++; }
                    896: 		} elsif ($status eq 'fail') {
                    897: 		    if ($mandatory) { $mandatory_failed++; }
                    898: 		} elsif ($status eq 'ungraded') {
                    899: 		    $ungraded++;
                    900: 		} elsif ($status eq 'review') {
                    901: 		    $review++;
1.49      albertel  902: 		} else {
                    903: 		    $ungraded++;
                    904: 		}
1.20      albertel  905: 	    }
                    906: 	    if ($optional_passed < $optional_required) {
                    907: 		$mandatory_failed++;
                    908: 	    }
1.21      albertel  909: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.89      albertel  910: 	    $Apache::lonhomework::results{'resource.0.regrader'}=
1.138     albertel  911: 		$env{'user.name'}.':'.$env{'user.domain'};
1.20      albertel  912: 	    if ($review) {
1.89      albertel  913: 		$Apache::lonhomework::results{"resource.$version.0.status"}='review';
1.33      albertel  914: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    915: 		    &check_queue_unlock($env{'form.queue'});
                    916: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    917: 		} else {
1.49      albertel  918: 		    &move_between_queues($env{'form.queue'},'reviewqueue');
1.33      albertel  919: 		}
1.20      albertel  920: 	    } elsif ($ungraded) {
1.89      albertel  921: 		$Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
1.49      albertel  922: 		if ($env{'form.queue'} eq 'reviewqueue' ||
                    923: 		    $env{'form.queue'} eq 'none' ) {
1.33      albertel  924: 		    &Apache::lonxml::debug("moving back.");
1.49      albertel  925: 		    &move_between_queues($env{'form.queue'},'gradingqueue');
1.33      albertel  926: 		} else {
                    927: 		    &check_queue_unlock($env{'form.queue'});
                    928: 		}
1.20      albertel  929: 	    } elsif ($mandatory_failed) {
1.89      albertel  930: 		$Apache::lonhomework::results{"resource.$version.0.status"}='fail';
1.25      albertel  931: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    932: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    933: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel  934: 		&remove_from_queue($env{'form.queue'}); 
                    935: 
                    936: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  937: 		
                    938: 		if ($env{'form.regrade'} ne 'yes') {
                    939: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    940: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    941: 		    &Apache::grades::version_portfiles(
                    942: 						       \%Apache::lonhomework::results,
                    943: 						       ["$version.0.bridgetask"],$courseid,
                    944: 						       $symb,$udom,$uname,
                    945: 						       ["$version.0.bridgetask"]);
                    946: 		}
1.20      albertel  947: 	    } else {
1.89      albertel  948: 		$Apache::lonhomework::results{"resource.$version.0.status"}='pass';
1.25      albertel  949: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    950: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    951: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  952: 		&remove_from_queue($env{'form.queue'});
1.39      albertel  953: 
                    954: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel  955: 		if ($env{'form.regrade'} ne 'yes') {
                    956: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    957: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    958: 		    &Apache::grades::version_portfiles(
                    959: 						       \%Apache::lonhomework::results,
                    960: 						       ["$version.0.bridgetask"],$courseid,
                    961: 						       $symb,$udom,$uname,
                    962: 						       ["$version.0.bridgetask"]);
                    963: 		}
1.20      albertel  964: 	    }
1.89      albertel  965: 	    $Apache::lonhomework::results{"resource.0.status"}=
                    966: 		$Apache::lonhomework::results{"resource.$version.0.status"};
1.28      albertel  967: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  968: 		$Apache::lonhomework::results{"resource.0.award"}=
1.50      albertel  969: 		    $Apache::lonhomework::results{"resource.$version.0.award"};
1.26      albertel  970: 		$Apache::lonhomework::results{"resource.0.awarded"}=
1.50      albertel  971: 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
1.26      albertel  972: 		$Apache::lonhomework::results{"resource.0.solved"}=
1.50      albertel  973: 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
1.25      albertel  974: 	    }
1.94      albertel  975: 	    &minimize_storage();
1.21      albertel  976: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  977: 	}
1.15      albertel  978:     } elsif ($target eq 'webgrade') {
1.131     albertel  979: 	$result.="</div>";
1.20      albertel  980: 	#$result.='<input type="submit" name="next" value="'.
                    981: 	#    &mt('Save &amp; Next').'" /> ';
                    982: 	#$result.='<input type="submit" name="end" value="'.
                    983: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    984: 	#$result.='<input type="submit" name="throwaway" value="'.
                    985: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    986: 	#$result.='<input type="submit" name="save" value="'.
                    987: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.124     albertel  988: 	$result.='</form>'."\n</div>\n</div>\n".
1.140     albertel  989: 	    &Apache::loncommon::end_page();
1.1       albertel  990:     } elsif ($target eq 'meta') {
1.70      albertel  991: 	$result.=&Apache::response::meta_package_write('Task');
1.77      albertel  992:         $result.=&Apache::response::meta_stores_write('solved','string',
                    993: 						      'Problem Status');
                    994: 	$result.=&Apache::response::meta_stores_write('tries','int_zeropos',
                    995: 						      'Number of Attempts');
                    996: 	$result.=&Apache::response::meta_stores_write('awarded','float',
                    997: 						      'Partial Credit Factor');
                    998: 	$result.=&Apache::response::meta_stores_write('status','string',
                    999: 						      'Bridge Task Status');
1.1       albertel 1000:     }
1.4       albertel 1001:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel 1002:     return $result;
                   1003: }
                   1004: 
1.31      albertel 1005: sub move_between_queues {
                   1006:     my ($src_queue,$dest_queue)=@_;
1.49      albertel 1007:     my $cur_data;
                   1008:     if ($src_queue ne 'none') {
                   1009: 	$cur_data=&get_queue_data($src_queue);
                   1010: 	if (!$cur_data) { return 'not_exist'; }
                   1011:     } else {
                   1012: 	$cur_data = ['none'];
                   1013:     }
1.82      albertel 1014:     my $result=&add_to_queue($dest_queue,[$cur_data->[0]]);
1.31      albertel 1015:     if ($result ne 'ok') {
                   1016: 	return $result;
                   1017:     }
                   1018:     &check_queue_unlock($src_queue);
                   1019:     return &remove_from_queue($src_queue);
1.21      albertel 1020: }
                   1021: 
                   1022: sub check_queue_unlock {
1.32      albertel 1023:     my ($queue,$key,$allow_not_me)=@_;
1.49      albertel 1024:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel 1025:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel 1026:     if (!defined($key)) {
1.138     albertel 1027: 	$key="$symb\0queue\0$uname:$udom";
1.32      albertel 1028:     }
1.30      albertel 1029:     my $cnum=$env{'course.'.$cid.'.num'};
                   1030:     my $cdom=$env{'course.'.$cid.'.domain'};
1.138     albertel 1031:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.30      albertel 1032:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                   1033:     if  ($who eq $me) {
1.32      albertel 1034: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                   1035:     } elsif ($allow_not_me) {
1.33      albertel 1036: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel 1037: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel 1038:     }
1.32      albertel 1039:     return 'not_owner';
1.21      albertel 1040: }
                   1041: 
1.88      albertel 1042: sub in_queue {
                   1043:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
                   1044:     if ($queue eq 'none') { return 0; }
                   1045:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                   1046: 	|| !defined($udom) || !defined($uname)) {
                   1047: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1048: 	$cnum=$env{'course.'.$cid.'.num'};
                   1049: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1050:     }
                   1051: 
                   1052:     my $key=&encode_queue_key($symb,$udom,$uname);
                   1053:     my %results = &Apache::lonnet::get($queue,[$key],$cdom,$cnum);
                   1054: 
                   1055:     if (defined($results{$key})) {
                   1056: 	return 1;
                   1057:     }
                   1058:     return 0;
                   1059: }
                   1060: 
1.21      albertel 1061: sub remove_from_queue {
1.86      albertel 1062:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
1.49      albertel 1063:     if ($queue eq 'none') { return 'ok'; }
1.86      albertel 1064:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                   1065: 	|| !defined($udom) || !defined($uname)) {
                   1066: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1067: 	$cnum=$env{'course.'.$cid.'.num'};
                   1068: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1069:     }
1.88      albertel 1070:     if (!&in_queue($queue,$symb,$cdom,$cnum,$udom,$uname)) {
                   1071: 	return 'ok';
                   1072:     }
1.86      albertel 1073:     my $key=&encode_queue_key($symb,$udom,$uname);
1.27      albertel 1074:     my @keys=($key,"$key\0locked");
1.31      albertel 1075:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel 1076: }
                   1077: 
1.16      albertel 1078: sub setup_env_for_other_user {
                   1079:     my ($queue_key,$safeeval)=@_;
                   1080:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel 1081:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel 1082:     $env{'form.grade_symb'}=$symb;
                   1083:     $env{'form.grade_domain'}=$udom;
                   1084:     $env{'form.grade_username'}=$uname;
                   1085:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                   1086:     &Apache::lonxml::initialize_rndseed($safeeval);
                   1087: }
                   1088: 
1.31      albertel 1089: sub get_queue_data {
                   1090:     my ($queue)=@_;
                   1091:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1092:     my $cnum=$env{'course.'.$cid.'.num'};
                   1093:     my $cdom=$env{'course.'.$cid.'.domain'};
1.138     albertel 1094:     my $todo="$symb\0queue\0$uname:$udom";
1.31      albertel 1095:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                   1096:     if ($key eq $todo && ref($value)) {
                   1097: 	return $value;
                   1098:     }
                   1099:     return undef;
                   1100: }
                   1101: 
1.84      albertel 1102: 
1.49      albertel 1103: sub check_queue_for_key {
1.84      albertel 1104:     my ($cdom,$cnum,$queue,$todo)=@_;
                   1105: 
1.49      albertel 1106:     my %results=
                   1107: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
                   1108:     
                   1109:     if (exists($results{$todo}) && ref($results{$todo})) {
                   1110: 	if (defined($results{"$todo\0locked"})) {
                   1111: 	    return 'locked';
                   1112: 	}
1.86      albertel 1113: 	my $slot;
                   1114: 	if (ref($results{$todo}) eq 'ARRAY')  {
                   1115: 	    $slot = $results{$todo}[0];
                   1116: 	} elsif (ref($results{$todo}) eq 'HASH')  {
                   1117: 	    $slot = $results{$todo}{'slot'};
                   1118: 	}
                   1119: 	if (defined($slot)) {
                   1120: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1121: 	    if ($slot_data{'endtime'} > time) { 
                   1122: 		return 'in_progress';
                   1123: 	    }
1.58      albertel 1124: 	}
1.49      albertel 1125: 	return 'enqueued';
                   1126:     }
                   1127:     return undef;
                   1128: }
                   1129: 
1.14      albertel 1130: sub add_to_queue {
1.82      albertel 1131:     my ($queue,$user_data)=@_;
1.49      albertel 1132:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel 1133:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.82      albertel 1134:     if (!$cid || $env{'request.state'} eq 'construct') {
                   1135: 	return 'no_queue';
                   1136:     }
1.14      albertel 1137:     my $cnum=$env{'course.'.$cid.'.num'};
                   1138:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1139:     my %data;
1.138     albertel 1140:     $data{"$symb\0queue\0$uname:$udom"}=$user_data;
1.83      albertel 1141:     return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
1.14      albertel 1142: }
                   1143: 
                   1144: sub show_queue {
1.32      albertel 1145:     my ($queue,$with_selects)=@_;
1.14      albertel 1146:     my $result;
                   1147:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1148:     my $cnum=$env{'course.'.$cid.'.num'};
                   1149:     my $cdom=$env{'course.'.$cid.'.domain'};
1.59      albertel 1150: 
                   1151:     my @chosen_sections=
                   1152: 	&Apache::loncommon::get_env_multiple('form.chosensections');
                   1153:     &Apache::grades::init_perm();
                   1154:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
                   1155:     &Apache::grades::reset_perm();
1.63      albertel 1156:     if (!(grep(/^all$/,@chosen_sections))) {
                   1157: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1158: 	    '</tt>.</p> '."\n";
                   1159:     }
1.59      albertel 1160: 
1.16      albertel 1161:     my $regexp="^$symb\0";
1.30      albertel 1162:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel 1163:     my ($tmp)=%queue;
                   1164:     if ($tmp=~/^error: 2 /) {
1.33      albertel 1165: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel 1166:     }
1.103     albertel 1167:     my $title=&Apache::lonnet::gettitle($symb);
                   1168:     $result.="\n<h3>Current Queue - $title $queue </h3><table border='1'><tr>";
                   1169:     if ($with_selects) { $result.="<th>Status</th><th></th>"; }
                   1170:     $result.="<th>user</th><th>data</th></tr>";
1.14      albertel 1171:     foreach my $key (sort(keys(%queue))) {
1.59      albertel 1172: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1173: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
1.32      albertel 1174: 	if ($key=~/locked$/ && !$with_selects) {
1.103     albertel 1175: 	    $result.="<tr><td>$uname</td>";
                   1176: 	    $result.='<td>'.$queue{$key}.'</td></tr>';
1.32      albertel 1177: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.103     albertel 1178: 	    $result.="<tr><td></td>";
                   1179: 	    $result.='<td>'.
1.16      albertel 1180: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel 1181: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1182: 	    $result.="<tr>";
1.35      albertel 1183: 	    my $slot=$queue{$key}->[0];
                   1184: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel 1185: 	    if ($with_selects) {
                   1186: 		my $ekey=&Apache::lonnet::escape($key);
1.103     albertel 1187: 		my ($action,$description,$status)=('select',&mt('Select'));
1.32      albertel 1188: 		if (exists($queue{"$key\0locked"})) {
1.138     albertel 1189: 		    my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.103     albertel 1190: 		    $status=&mt('Locked by <tt>[_1]</tt>',$queue{"$key\0locked"});
1.32      albertel 1191: 		    if ($me eq $queue{"$key\0locked"}) {
                   1192: 			($action,$description)=('resume',&mt('Resume'));
                   1193: 		    } else {
                   1194: 			($action,$description)=('unlock',&mt('Unlock'));
                   1195: 		    }
                   1196: 		}
1.62      albertel 1197: 		my $seclist;
                   1198: 		foreach my $sec (@chosen_sections) {
                   1199: 		    $seclist.='<input type="hidden" name="chosensections" 
                   1200:                                value="'.$sec.'" />';
                   1201: 		}
1.35      albertel 1202: 		if (time > $slot_data{'endtime'}) {
                   1203: 		    $result.=(<<FORM);
1.103     albertel 1204: <td>$status</td>
1.32      albertel 1205: <td>
1.115     albertel 1206: <form style="display: inline" method="post">
1.32      albertel 1207:  <input type="hidden" name="gradingkey" value="$ekey" />
                   1208:  <input type="hidden" name="queue" value="$queue" />
                   1209:  <input type="hidden" name="gradingaction" value="$action" />
                   1210:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel 1211:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel 1212:  <input type="submit" name="submit" value="$description" />
1.62      albertel 1213:  $seclist
1.32      albertel 1214: </form>
                   1215: </td>
                   1216: FORM
1.35      albertel 1217: 
                   1218:                 } else {
                   1219: 		    $result.='<td>'.&mt("In Progress").'</td>'
                   1220: 		}
1.32      albertel 1221: 	    }
1.104     albertel 1222: 	    $result.= "<td>".$fullname->{$uname.':'.$udom}.
1.138     albertel 1223: 		" <tt>($uname:$udom)</tt> </td>";
1.103     albertel 1224: 	    $result.='<td>Slot: '.$slot.' End time: '.
1.20      albertel 1225: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                   1226: 		"</td></tr>";
1.16      albertel 1227: 	}
1.14      albertel 1228:     }
1.15      albertel 1229:     $result.="</table><hr />\n";
1.14      albertel 1230:     return $result;
                   1231: }
                   1232: 
1.34      albertel 1233: sub get_queue_counts {
                   1234:     my ($queue)=@_;
                   1235:     my $result;
                   1236:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1237:     my $cnum=$env{'course.'.$cid.'.num'};
                   1238:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1239:     my $regexp="^$symb\0";
                   1240:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1241:     my ($tmp)=%queue;
                   1242:     if ($tmp=~/^error: 2 /) {
                   1243: 	return (0,0,0);
                   1244:     }
                   1245:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
1.96      albertel 1246:     my %slot_cache;
1.34      albertel 1247:     foreach my $key (sort(keys(%queue))) {
                   1248: 	if ($key=~/locked$/) {
                   1249: 	    $locks++;
                   1250: 	} elsif ($key=~/timestamp$/) {
                   1251: 	    #ignore
                   1252: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1253: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1254: 	    $entries++;
                   1255: 	    my $slot=$queue{$key}->[0];
1.96      albertel 1256: 	    if (!exists($slot_cache{$slot})) {
                   1257: 		my %slot_data=&Apache::lonnet::get_slot($slot);
                   1258: 		$slot_cache{$slot} = \%slot_data;
                   1259: 	    }
                   1260: 	    if (time > $slot_cache{$slot}{'endtime'}) {
1.34      albertel 1261: 		$ready_to_grade++;
                   1262: 	    }
                   1263: 	}
                   1264:     }
                   1265:     return ($entries,$ready_to_grade,$locks);
                   1266: }
                   1267: 
1.49      albertel 1268: sub encode_queue_key {
                   1269:     my ($symb,$udom,$uname)=@_;
1.138     albertel 1270:     return "$symb\0queue\0$uname:$udom";
1.49      albertel 1271: }
                   1272: 
1.14      albertel 1273: sub decode_queue_key {
                   1274:     my ($key)=@_;
                   1275:     my ($symb,undef,$user) = split("\0",$key);
1.138     albertel 1276:     my ($uname,$udom) = split(':',$user);
1.14      albertel 1277:     return ($symb,$uname,$udom);
                   1278: }
                   1279: 
                   1280: sub queue_key_locked {
1.30      albertel 1281:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel 1282:     if (!defined($cdom) || !defined($cnum)) {
                   1283: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1284: 	$cnum=$env{'course.'.$cid.'.num'};
                   1285: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1286:     }
1.14      albertel 1287:     my ($key_locked,$value)=
1.30      albertel 1288: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel 1289:     if ($key_locked eq "$key\0locked") {
                   1290: 	return $value;
                   1291:     }
                   1292:     return undef;
                   1293: }
                   1294: 
                   1295: sub pick_from_queue_data {
1.30      albertel 1296:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
1.98      albertel 1297:     my @possible; # will hold queue entries that are valid to be selected
1.30      albertel 1298:     foreach my $key (keys(%$queuedata)) {
1.68      albertel 1299: 	if ($key =~ /\0locked$/) { next; }
                   1300: 	if ($key =~ /\0timestamp$/) { next; }
1.14      albertel 1301: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                   1302: 	if ($check_section) {
                   1303: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel 1304: 	    if ($section eq $check_section) {
1.33      albertel 1305: 		&Apache::lonxml::debug("my sec");
1.15      albertel 1306: 		next;
                   1307: 	    }
1.14      albertel 1308: 	}
1.30      albertel 1309: 	my $slot=$queuedata->{$key}[0];
1.14      albertel 1310: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel 1311: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel 1312: 	    &Apache::lonxml::debug("not time");
1.15      albertel 1313: 	    next;
                   1314: 	}
1.98      albertel 1315: 	if (exists($queuedata->{"$key\0locked"})) {
1.33      albertel 1316: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel 1317: 	    next;
                   1318: 	}
1.98      albertel 1319: 	push(@possible,[$key,$slot_data{'endtime'}]);
                   1320:     }
                   1321:     if (@possible) {
                   1322:         # sort entries in order by slot end time
                   1323: 	@possible = sort { $a->[1] <=> $b->[1] } @possible;
1.137     albertel 1324: 	# pick one of the entries in the top 10% in small queues and one
                   1325: 	# of the first ten entries in large queues
1.139     albertel 1326: 	#my $ten_percent = int($#possible * 0.1);
                   1327: 	#if ($ten_percent < 1 ) { $ten_percent = 1;  }
                   1328: 	#if ($ten_percent > 10) { $ten_percent = 10; }
                   1329: 	#my $max=($#possible < $ten_percent) ? $#possible : $ten_percent;
1.137     albertel 1330: 	
1.139     albertel 1331: 	#return $possible[int(rand($max))][0];
                   1332: 	return $possible[0][0];
1.14      albertel 1333:     }
                   1334:     return undef;
                   1335: }
                   1336: 
1.15      albertel 1337: sub find_mid_grade {
1.30      albertel 1338:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel 1339:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.138     albertel 1340:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.15      albertel 1341:     if ($todo) {
1.30      albertel 1342: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel 1343: 	if ($who eq $me) { return $todo; }
                   1344:     }
                   1345:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel 1346:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel 1347:     foreach my $key (keys(%locks)) {
                   1348: 	my $who=$locks{$key};
                   1349: 	if ($who eq $me) {
                   1350: 	    $todo=$key;
                   1351: 	    $todo=~s/\0locked$//;
                   1352: 	    return $todo;
                   1353: 	}
                   1354:     }
                   1355:     return undef;
                   1356: }
                   1357: 
1.32      albertel 1358: sub lock_key {
                   1359:     my ($queue,$todo)=@_;
1.138     albertel 1360:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.32      albertel 1361:     my (undef,$cid)=&Apache::lonxml::whichuser();
                   1362:     my $cnum=$env{'course.'.$cid.'.num'};
                   1363:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1364:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                   1365: 					$cdom,$cnum);
1.33      albertel 1366:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel 1367:     if ($success eq 'ok') {
                   1368: 	return 1;
                   1369:     }
                   1370:     return 0;
                   1371: }
                   1372: 
1.86      albertel 1373: sub get_queue_symb_status {
1.85      albertel 1374:     my ($queue,$symb,$cdom,$cnum) = @_;
                   1375:     if (!defined($cdom) || !defined($cnum)) {
                   1376: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1377: 	$cnum=$env{'course.'.$cid.'.num'};
                   1378: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1379:     }
                   1380:     my $regexp="^$symb\0";
                   1381:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1382:     my ($tmp)=%queue;
                   1383:     if ($tmp=~/^error: 2 /) { return; }
                   1384:     my @users;
                   1385:     foreach my $key (sort(keys(%queue))) {
                   1386: 	next if ($key=~/locked$/);
                   1387: 	next if ($key=~/timestamp$/);
                   1388: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1389: 	push(@users,"$uname:$udom");
                   1390:     }
                   1391:     return @users;
                   1392: }
                   1393: 
1.14      albertel 1394: sub get_from_queue {
1.30      albertel 1395:     my ($queue)=@_;
1.14      albertel 1396:     my $result;
                   1397:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1398:     my $cnum=$env{'course.'.$cid.'.num'};
                   1399:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel 1400:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel 1401:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel 1402:     if ($todo) { return $todo; }
1.95      albertel 1403:     my $attempts=0;
1.14      albertel 1404:     while (1) {
1.95      albertel 1405: 	if ($attempts > 2) {
                   1406: 	    # tried twice to get a queue entry, giving up
                   1407: 	    return (undef,'unable');
                   1408: 	}
1.14      albertel 1409: 	my $starttime=time;
1.83      albertel 1410: 	&Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
                   1411: 			      $cdom,$cnum);
1.33      albertel 1412: 	&Apache::lonxml::debug("$starttime");
1.14      albertel 1413: 	my $regexp="^$symb\0queue\0";
1.97      albertel 1414: 	my $range= ($attempts < 1 ) ? '0-100' : '0-400';
                   1415: 
1.98      albertel 1416: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel 1417: 	#make a pass looking for a user _not_ in my section
1.14      albertel 1418: 	if ($env{'request.course.sec'}) {
1.33      albertel 1419: 	    &Apache::lonxml::debug("sce");
1.30      albertel 1420: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                   1421: 					\%queue,$cdom,$cnum);
1.33      albertel 1422: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel 1423: 	}
1.33      albertel 1424: 	# no one _not_ in our section so look for any user that is
                   1425: 	# ready for grading
1.14      albertel 1426: 	if (!$todo) {
1.33      albertel 1427: 	    &Apache::lonxml::debug("no sce");
1.98      albertel 1428: 	    $todo=&pick_from_queue_data($queue,undef,\%queue,$cdom,$cnum);
1.33      albertel 1429: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel 1430: 	}
                   1431: 	# no user to grade 
                   1432: 	if (!$todo) { last; }
1.33      albertel 1433: 	&Apache::lonxml::debug("got $todo");
1.14      albertel 1434: 	# otherwise found someone so lets try to lock them
1.32      albertel 1435: 	# unless someone else already picked them
1.95      albertel 1436: 	if (!&lock_key($queue,$todo)) {
                   1437: 	    $attempts++;
                   1438: 	    next;
                   1439: 	}
1.14      albertel 1440: 	my (undef,$endtime)=
1.30      albertel 1441: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel 1442: 				 $cdom,$cnum);
1.33      albertel 1443: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel 1444: 	# someone else already modified the queue, 
                   1445: 	# perhaps our picked user wass already fully graded between
                   1446: 	# when we picked him and when we locked his record? so lets
                   1447: 	# double check.
                   1448: 	if ($endtime != $starttime) {
                   1449: 	    my ($key,$value)=
1.30      albertel 1450: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel 1451: 				     $cdom,$cnum);
1.33      albertel 1452: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel 1453: 	    if ($key eq $todo && ref($value)) {
                   1454: 	    } else {
1.30      albertel 1455: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel 1456: 				     $cdom,$cnum);
1.33      albertel 1457: 		&Apache::lonxml::debug("del");
1.95      albertel 1458: 		$attempts++;
1.14      albertel 1459: 		next;
                   1460: 	    }
                   1461: 	}
1.33      albertel 1462: 	&Apache::lonxml::debug("last $todo");
1.14      albertel 1463: 	last;
                   1464:     }
                   1465:     return $todo;
                   1466: }
                   1467: 
1.49      albertel 1468: sub select_user {
                   1469:     my ($symb,$cid)=&Apache::lonxml::whichuser();
                   1470: 
1.59      albertel 1471:     my @chosen_sections=
                   1472: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.49      albertel 1473:     &Apache::grades::init_perm();
1.59      albertel 1474:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
1.49      albertel 1475:     &Apache::grades::reset_perm();
1.63      albertel 1476:     
                   1477:     my $result;
                   1478:     if (!(grep(/^all$/,@chosen_sections))) {
                   1479: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1480: 	    '</tt>.</p> '."\n";
                   1481:     }
                   1482:     $result.='<table border="1">';
1.49      albertel 1483: 
                   1484:     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
                   1485: 	my ($uname,$udom) = split(/:/,$student);
1.59      albertel 1486: 	
1.84      albertel 1487: 	my $cnum=$env{'course.'.$cid.'.num'};
                   1488: 	my $cdom=$env{'course.'.$cid.'.domain'};
1.88      albertel 1489: 	my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname,
                   1490: 					 'Task');
1.49      albertel 1491: 	my $queue = 'none';
1.58      albertel 1492: 	my $cannot_grade;
                   1493: 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1494: 	    $queue = 'reviewqueue';
1.58      albertel 1495: 	    if ($status{'reviewqueue'} eq 'in_progress') {
                   1496: 		$cannot_grade=1;
                   1497: 	    }
                   1498: 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1499: 	    $queue = 'gradingqueue';
1.58      albertel 1500: 	    if ($status{'gradingqueue'} eq 'in_progress') {
                   1501: 		$cannot_grade=1;
                   1502: 	    }
1.49      albertel 1503: 	}
                   1504: 	my $todo = 
                   1505: 	    &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
1.58      albertel 1506: 	if ($cannot_grade) {
                   1507: 	    $result.='<tr><td>&nbsp;</td><td>'.$fullname->{$student}.
                   1508: 		'</td><td>';
                   1509: 	} else {
1.62      albertel 1510: 	    my $seclist;
                   1511: 	    foreach my $sec (@chosen_sections) {
                   1512: 		$seclist.='<input type="hidden" name="chosensections" 
                   1513:                                value="'.$sec.'" />';
                   1514: 	    }
1.102     albertel 1515: 	    my $studentdis = $student;
                   1516: 	    $studentdis =~ tr/:/@/;
1.58      albertel 1517: 	    $result.=<<RESULT;
1.49      albertel 1518: <tr>
                   1519:   <td>
1.115     albertel 1520:     <form style="display: inline" method="post">
1.49      albertel 1521:       <input type="hidden" name="gradingkey" value="$todo" />
                   1522:       <input type="hidden" name="queue" value="$queue" />
                   1523:       <input type="hidden" name="webgrade" value="no" />
1.52      albertel 1524:       <input type="hidden" name="regrade" value="yes" />
1.62      albertel 1525:       <input type="submit" name="submit" value="Regrade" />
                   1526:       $seclist
1.49      albertel 1527:     </form>
1.102     albertel 1528:   <td>$fullname->{$student} <tt>($studentdis)</tt></td>
1.49      albertel 1529:   <td>
                   1530: RESULT
1.58      albertel 1531:         }
1.49      albertel 1532:         if ($status{'status'} eq 'pass') {
                   1533: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
                   1534: 	} elsif ($status{'status'} eq 'fail') {
                   1535: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
                   1536: 	} elsif ($status{'status'} eq 'review') {
                   1537: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
                   1538: 	} elsif ($status{'status'} eq 'ungraded') {
                   1539: 	    $result .= &mt('Ungraded');
                   1540: 	} elsif ($status{'status'} ne '') {
                   1541: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
                   1542: 	} else {
                   1543: 	    $result.="&nbsp;";
                   1544: 	}
                   1545: 	if ($status{'version'}) {
                   1546: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
                   1547: 	}
1.101     albertel 1548: 	if ($status{'grader'}) {
                   1549: 	    $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
                   1550: 	}
1.49      albertel 1551: 	$result.= '</td><td>';
                   1552: 	if ($status{'reviewqueue'} eq 'enqueued') {
                   1553: 	    $result .= &mt('Awaiting Review');
                   1554: 	} elsif ($status{'reviewqueue'} eq 'locked') {
                   1555: 	    $result .= &mt('Under Review');
1.58      albertel 1556: 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
                   1557: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1558: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
                   1559: 	    $result .= &mt('Awaiting Grading');
                   1560: 	} elsif ($status{'gradingqueue'} eq 'locked') {
                   1561: 	    $result .= &mt('Being Graded');
1.58      albertel 1562: 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
                   1563: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1564: 	} else {
                   1565: 	    $result.="&nbsp;";
                   1566: 	}
                   1567: 	$result.= '</td></tr>';
                   1568:     }
                   1569:     $result.='</table>';
                   1570:     return $result;
                   1571: }
                   1572: 
                   1573: sub get_student_status {
1.86      albertel 1574:     my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
                   1575: 
                   1576:     my %status;
                   1577: 
                   1578:     if ($type eq 'Task') {
                   1579: 	my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
1.49      albertel 1580: 					  $udom,$uname);
1.89      albertel 1581: 	$status{'status'}=$record{'resource.0.status'};
                   1582: 	$status{'version'}=$record{'resource.0.version'};
                   1583: 	$status{'grader'}=$record{'resource.0.regrader'};
1.86      albertel 1584:     }
                   1585:     $status{'reviewqueue'}=
                   1586: 	&check_queue_for_key($cdom,$cnum,'reviewqueue',
                   1587: 			     &encode_queue_key($symb,$udom,$uname));
                   1588:     $status{'gradingqueue'}=
                   1589: 	&check_queue_for_key($cdom,$cnum,'gradingqueue',
                   1590: 			     &encode_queue_key($symb,$udom,$uname));
1.49      albertel 1591:     return %status;
                   1592: }
                   1593: 
1.1       albertel 1594: sub start_ClosingParagraph {
                   1595:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1596:     my $result;
                   1597:     if ($target eq 'web') {
1.13      albertel 1598:     } elsif ($target eq 'webgrade') {
                   1599: 	&Apache::lonxml::startredirection();
1.1       albertel 1600:     }
                   1601:     return $result;
                   1602: }
                   1603: 
                   1604: sub end_ClosingParagraph {
                   1605:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1606:     my $result;
                   1607:     if ($target eq 'web') {
1.13      albertel 1608:     } elsif ($target eq 'webgrade') {
                   1609: 	&Apache::lonxml::endredirection();
1.1       albertel 1610:     }
                   1611:     return $result;
                   1612: }
                   1613: 
1.19      albertel 1614: sub get_id {
                   1615:     my ($parstack,$safeeval)=@_;
                   1616:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1617:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1618:     return $id;
                   1619: }
                   1620: 
1.1       albertel 1621: my %dimension;
                   1622: sub start_Dimension {
                   1623:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1624:     undef(%dimension);
1.19      albertel 1625:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel 1626:     $Apache::bridgetask::dimension=$dim_id;
                   1627:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                   1628:     undef(@Apache::bridgetask::instance);
1.20      albertel 1629:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                   1630: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.54      albertel 1631:     &Apache::lonxml::startredirection();
                   1632:     return &internal_location($dim_id);
1.1       albertel 1633: }
                   1634: 
1.13      albertel 1635: sub get_instance {
1.75      albertel 1636:     my ($dim)=@_;
                   1637:     my $rand_alg=&Apache::lonnet::get_rand_alg();
                   1638:     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
                   1639: 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
                   1640: 	$rand_alg eq '64bit4' ) {
                   1641: 	&Apache::response::pushrandomnumber();
                   1642: 	my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
                   1643: 	my $num=@order;
                   1644: 	my $version=&get_version();
                   1645: 	my $which=($version-1)%$num;
                   1646: 	return $order[$which];
                   1647:     } else {
                   1648: 	my ($version,$previous) = &get_version();
                   1649: 	my $instance = 
                   1650: 	    $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
                   1651: 	if (defined($instance)) { return $instance; }
                   1652: 
                   1653: 	&Apache::response::pushrandomnumber();
                   1654: 	my @instances = @{$dimension{'instances'}};
                   1655: 	# remove disabled instances
                   1656: 	for (my $i=0; $i < $#instances; $i++) {
                   1657: 	    if ($dimension{$instances[$i].'.disabled'}) {
                   1658: 		splice(@instances,$i,1);
                   1659: 		$i--;
                   1660: 	    }
                   1661: 	}
                   1662: 	@instances = &Math::Random::random_permutation(@instances);
                   1663: 	$instance  = $instances[($version-1)%scalar(@instances)];
                   1664: 	$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
                   1665: 	    $instance;
1.79      albertel 1666: 	$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
1.75      albertel 1667: 	&Apache::response::poprandomnumber();
                   1668: 	return $instance;
                   1669:     }
1.13      albertel 1670: }
                   1671: 
1.18      albertel 1672: {
                   1673:     my $last_link;
1.122     albertel 1674:     sub link {
                   1675: 	my ($instance,$id) = @_;
                   1676: 	return 'LC_GRADING_criteria_'.$instance.'_'.$id;
                   1677:     }
1.18      albertel 1678:     sub end_Dimension {
                   1679: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.54      albertel 1680: 	my $result=&Apache::lonxml::endredirection();
1.25      albertel 1681: 	my $dim=&get_id($parstack,$safeeval);
1.75      albertel 1682: 	my $instance=&get_instance($dim);
1.25      albertel 1683: 	my $version=&get_version();
1.18      albertel 1684: 	if ($target eq 'web') {
1.47      albertel 1685: 	    @Apache::scripttag::parser_env = @_;
                   1686: 	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
1.76      albertel 1687: 	    my @instances = $instance;
                   1688: 	    if (&Apache::response::showallfoils()) {
                   1689: 		@instances = @{$dimension{'instances'}};
                   1690: 	    }
                   1691: 	    foreach my $instance (@instances) {
                   1692: 		@Apache::scripttag::parser_env = @_;
                   1693: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.89      albertel 1694: 		if ($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass' ||
                   1695: 		    $Apache::lonhomework::history{"resource.$version.0.status"} eq 'fail') {
1.76      albertel 1696: 
1.89      albertel 1697: 		    my $dim_status=$Apache::lonhomework::history{"resource.$version.0.$dim.status"};
1.76      albertel 1698: 		    my $mandatory='Mandatory';
                   1699: 		    if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
                   1700: 			$mandatory='Optional';
                   1701: 		    }
1.116     albertel 1702: 		    my $dim_info="<div class='LC_$dim_status LC_question_grade'>\n";
1.76      albertel 1703: 		    if ($dim_status eq 'pass') {
                   1704: 			$dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1.54      albertel 1705: 		    }
1.76      albertel 1706: 		    if ($dim_status eq 'fail') {
                   1707: 			$dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1.53      albertel 1708: 		    }
1.76      albertel 1709: 		    my $man_count=0;
                   1710: 		    my $man_passed=0;
                   1711: 		    my $opt_count=0;
                   1712: 		    my $opt_passed=0;
                   1713: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1714: 			if ($dimension{$instance.'.criteria.'.$id.'.mandatory'} 
                   1715: 			    eq 'N') {
                   1716: 			    $opt_count++;
1.89      albertel 1717: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"} eq 'pass') {
1.76      albertel 1718: 				$opt_passed++;
                   1719: 			    }
                   1720: 			} else {
                   1721: 			    $man_count++;
1.89      albertel 1722: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"} eq 'pass') {
1.76      albertel 1723: 				$man_passed++;
                   1724: 			    }
                   1725: 			}
1.22      albertel 1726: 		    }
1.76      albertel 1727: 		    if ($man_passed eq $man_count) { $man_passed='all'; }
                   1728: 		    my $opt_req=$dimension{$instance.'.optionalrequired'};
                   1729: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
                   1730: 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
                   1731: 
                   1732: 		    my $internal_location=&internal_location($dim);
                   1733: 		    $result=~s/\Q$internal_location\E/$dim_info/;
                   1734: 
                   1735: 		    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.89      albertel 1736: 			my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
                   1737: 			my $comment=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"};
1.76      albertel 1738: 			my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1739: 			if ($mandatory) {
                   1740: 			    $mandatory='Mandatory';
                   1741: 			} else {
                   1742: 			    $mandatory='Optional';
                   1743: 			}
                   1744: 			if ($status eq 'fail') {
                   1745: 			} elsif ($status eq 'pass') {
                   1746: 			} else {
                   1747: 			    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
                   1748: 			}
                   1749: 			my $status_display=$status;
                   1750: 			$status_display=~s/^([a-z])/uc($1)/e;
                   1751: 			@Apache::scripttag::parser_env = @_;
1.116     albertel 1752: 			$result.=
                   1753: 			    '<div class="LC_'.$status.' LC_criteria"><h4>'
                   1754: 			    .$mandatory.' Criteria</h4><p>';
1.76      albertel 1755: 			@Apache::scripttag::parser_env = @_;
                   1756: 			$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
1.116     albertel 1757: 			$result.='</p><p class="LC_grade">'.$status_display.'</p>';
1.89      albertel 1758: 			if ($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}) {
1.116     albertel 1759: 			    $result.='<p class="LC_comment">'.&mt('Comment: [_1]',$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</p>';
1.76      albertel 1760: 			}
                   1761: 			$result.='</div>';
1.22      albertel 1762: 		    }
                   1763: 		}
                   1764: 	    }
1.18      albertel 1765: 	} elsif ($target eq 'webgrade') {
1.47      albertel 1766: 	    # in case of any side effects that we need
                   1767: 	    @Apache::scripttag::parser_env = @_;
                   1768: 	    &Apache::scripttag::xmlparse($dimension{'intro'});
                   1769: 	    @Apache::scripttag::parser_env = @_;
                   1770: 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.18      albertel 1771: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.122     albertel 1772: 		my $link=&link($instance,$id);
1.89      albertel 1773: 		my $status=$Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.status"};
1.120     albertel 1774: 		$result.='<div class="LC_GRADING_criteria" id="'.$link.'">'."\n".
1.136     albertel 1775: 		    '<div class="LC_GRADING_criteriatext" id="next_'.$last_link.'">'."\n";
1.47      albertel 1776: 		@Apache::scripttag::parser_env = @_;
                   1777: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
1.111     albertel 1778: 		$result.='</div>'."\n".
1.18      albertel 1779: 		    #$dimension{$instance.'.criteria.'.$id}.
1.120     albertel 1780: 		    '<div class="LC_GRADING_grade">'."\n".
                   1781: 		    '<label class="LC_GRADING_ungraded"><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label>'."\n".
                   1782: 		    '<label class="LC_GRADING_fail"><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label>'."\n".
                   1783: 		    '<label class="LC_GRADING_pass"><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label>'."\n".
                   1784: 		    '<label class="LC_GRADING_review"><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label>'."\n".
1.111     albertel 1785: 		    '</div>'."\n".
1.120     albertel 1786: 		    '<label class="LC_GRADING_comment">'.&mt('Additional Comment for Student')."\n".
                   1787: 		    '<textarea class="LC_GRADING_comment_area" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.0.$dim.$instance.$id.comment"}).'</textarea>'."\n".
1.111     albertel 1788: 		    '</label>'."\n".
1.120     albertel 1789: 		    '<ul class="LC_GRADING_navbuttons">'."\n".
1.111     albertel 1790: 		    '<li><a href="#'.$last_link.'">Prev</a></li>'."\n".
                   1791: 		    '<li><a href="#next_'.$link.'">Next</a></li>'."\n".
                   1792: 		    '</ul>'."\n".
                   1793:                     '</div>'."\n";
1.113     albertel 1794: 		$result.=&grading_history($version,$dim,$instance,$id);
1.18      albertel 1795: 		$last_link=$link;
                   1796: 	    }
1.22      albertel 1797: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1798: 	    my $optional_passed=0;
1.20      albertel 1799: 	    my $mandatory_failed=0;
                   1800: 	    my $ungraded=0;
                   1801: 	    my $review=0;
1.19      albertel 1802: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.122     albertel 1803: 		my $link=&link($instance,$id);
                   1804: 		my $status=$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.status"}=$env{'form.HWVAL_'.$link};
                   1805: 		$Apache::lonhomework::results{"resource.$version.0.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
1.20      albertel 1806: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1807: 		if ($status eq 'pass') {
                   1808: 		    if (!$mandatory) { $optional_passed++; }
                   1809: 		} elsif ($status eq 'fail') {
                   1810: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1811: 		} elsif ($status eq 'review') {
                   1812: 		    $review++;
1.20      albertel 1813: 		} elsif ($status eq 'ungraded') {
                   1814: 		    $ungraded++;
1.21      albertel 1815: 		} else {
1.47      albertel 1816: 		    $ungraded++;
1.19      albertel 1817: 		}
                   1818: 	    }
1.20      albertel 1819: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1820: 		$mandatory_failed++;
                   1821: 	    }
1.21      albertel 1822: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1823: 	    if ($review) {
1.89      albertel 1824: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1825: 		    'review';
1.20      albertel 1826: 	    } elsif ($ungraded) {
1.89      albertel 1827: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1828: 		    'ungraded';
1.20      albertel 1829: 	    } elsif ($mandatory_failed) {
1.89      albertel 1830: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1831: 		    'fail';
1.20      albertel 1832: 	    } else {
1.91      albertel 1833: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 1834: 		    'pass';
1.20      albertel 1835: 	    }
1.69      albertel 1836: 	} else {
                   1837: 	    # any other targets no output
                   1838: 	    undef($result);
1.13      albertel 1839: 	}
1.18      albertel 1840: 	return $result;
1.1       albertel 1841:     }
                   1842: }
                   1843: 
1.113     albertel 1844: sub grading_history {
                   1845:     my ($version,$dim,$instance,$criteria) = @_;
                   1846:     if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
                   1847: 	return '';
                   1848:     }
                   1849:     my ($result,$grader);
                   1850:     my $scope="resource.$version.0.$dim.$instance.$criteria";
                   1851:     foreach my $t (1..$Apache::lonhomework::history{'version'}) {
                   1852: 	if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
                   1853: 	    my ($gname,$gdom) = 
1.138     albertel 1854: 		split(':',$Apache::lonhomework::history{$t.':resource.0.regrader'});
1.113     albertel 1855: 	    my $fullname = &Apache::loncommon::plainname($gname,$gdom);
                   1856: 	    $grader = &Apache::loncommon::aboutmewrapper($fullname,
                   1857: 							 $gname,$gdom);
                   1858: 	}
                   1859: 	my $entry;
                   1860: 	if (exists($Apache::lonhomework::history{"$t:$scope.status"})) {
                   1861: 	    $entry.="<tt>".$Apache::lonhomework::history{"$t:$scope.status"}.'</tt>';
                   1862: 	}
                   1863: 	if (exists($Apache::lonhomework::history{"$t:$scope.comment"})) {
                   1864: 	    $entry.=' comment: "'.$Apache::lonhomework::history{"$t:$scope.comment"}.'"';
                   1865: 	}
                   1866: 	if ($entry) {
                   1867: 	    $result.= "<li>$grader : $entry </li>";
                   1868: 	}
                   1869:     }
                   1870:     if ($result) {
1.120     albertel 1871: 	return '<ul class="LC_GRADING_pastgrading">'.$result.'</ul>';
1.113     albertel 1872:     }
                   1873:     return '';
                   1874: }
                   1875: 
1.1       albertel 1876: sub start_IntroParagraph {
1.87      albertel 1877:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel 1878:     my $result;
1.13      albertel 1879:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1880: 	if ($tagstack->[-2] eq 'Dimension') {
1.87      albertel 1881: 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser,$style);
1.47      albertel 1882: 	
1.128     albertel 1883: 	} elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
1.127     albertel 1884: 	    &Apache::lonxml::startredirection();
1.1       albertel 1885: 	}
1.47      albertel 1886: 	
1.1       albertel 1887:     }
                   1888:     return $result;
                   1889: }
                   1890: 
                   1891: sub end_IntroParagraph {
1.127     albertel 1892:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.128     albertel 1893:     if ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
1.127     albertel 1894: 	my $result = &Apache::lonxml::endredirection();
                   1895:     }
1.1       albertel 1896: }
                   1897: 
                   1898: sub start_Instance {
                   1899:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1900:     my $id=&get_id($parstack,$safeeval);
                   1901:     push(@{$dimension{'instances'}},$id);
                   1902:     push(@Apache::bridgetask::instance,$id);
                   1903:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1904:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1905: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.75      albertel 1906:     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
                   1907:     if (lc($disabled) eq 'yes') {
                   1908: 	$dimension{$id.'.disabled'}='1';
                   1909:     }
1.1       albertel 1910:     return '';
                   1911: }
                   1912: 
                   1913: sub end_Instance {
                   1914: }
                   1915: 
                   1916: sub start_InstanceText {
1.87      albertel 1917:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.47      albertel 1918:     my $instance_id=$Apache::bridgetask::instance[-1];
1.87      albertel 1919:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
1.13      albertel 1920:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1921: 	$dimension{$instance_id.'.text'}=$text;
1.1       albertel 1922:     }
                   1923:     return '';
                   1924: }
                   1925: 
                   1926: sub end_InstanceText {
                   1927:     return '';
                   1928: }
                   1929: 
                   1930: sub start_Criteria {
1.87      albertel 1931:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.9       albertel 1932:     my $instance_id=$Apache::bridgetask::instance[-1];
1.87      albertel 1933:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
1.21      albertel 1934:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.19      albertel 1935: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1936: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1937: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1938: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1939: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1940:     }
                   1941:     return '';
                   1942: }
                   1943: 
1.47      albertel 1944: sub end_Criteria {
                   1945: }
                   1946: 
1.4       albertel 1947: sub proctor_validation_screen {
                   1948:     my ($slot) = @_;
                   1949:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1950:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 1951:     my $name=&Apache::loncommon::plainname($user,$domain);
                   1952:     
1.4       albertel 1953:     my $msg;
1.11      albertel 1954:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1955: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1956: 	    .'</font></p>';
                   1957:     }
1.47      albertel 1958:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 1959:     my $result= (<<ENDCHECKOUT);
                   1960: <h2>Proctor Validation</h2>
                   1961:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1962:     $msg
1.115     albertel 1963: <form name="checkout" method="post" action="$env{'request.uri'}">
1.4       albertel 1964: <input type="hidden" name="validate" value="yes" />
                   1965: <input type="hidden" name="submitted" value="yes" />
                   1966: <table>
1.44      albertel 1967:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 1968:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 1969:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 1970: </table>
                   1971: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 1972: <table border="1">
                   1973:   <tr><td>
                   1974:     <table>
                   1975:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   1976:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 1977:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.138     albertel 1978:       <tr><td>Usename</td><td>$user:$domain</td></tr>
1.44      albertel 1979:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   1980:     </table>
                   1981:   </tr></td>
                   1982: </table>
1.4       albertel 1983: </form>
                   1984: ENDCHECKOUT
                   1985:     return $result;
                   1986: }
                   1987: 
1.1       albertel 1988: 1;
                   1989: __END__

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