Annotation of loncom/homework/bridgetask.pm, revision 1.49

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.49    ! albertel    4: # $Id: bridgetask.pm,v 1.48 2005/09/14 21:03:48 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:     $Apache::bridgetask::queue_key='';
1.9       albertel   60: }
                     61: 
1.4       albertel   62: sub proctor_check_auth {
1.22      albertel   63:     my ($slot_name,$slot)=@_;
1.11      albertel   64:     my $user=$env{'form.proctorname'};
                     65:     my $domain=$env{'form.proctordomain'};
1.4       albertel   66:     
                     67:     my @allowed=split(",",$slot->{'proctor'});
                     68:     foreach my $possible (@allowed) {
                     69: 	my ($puser,$pdom)=(split('@',$possible));
                     70: 	if ($puser eq $user && $pdom eq $domain) {
1.11      albertel   71: 	    my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
1.4       albertel   72: 	    if ($authhost ne 'no_host') {
1.23      albertel   73: 		my $version=
                     74: 		    $Apache::lonhomework::results{'resource.version'}=
1.27      albertel   75: 		    ++$Apache::lonhomework::history{'resource.version'};
1.23      albertel   76: 		$Apache::lonhomework::results{"resource.$version.checkedin"}=
1.4       albertel   77: 		    $user.'@'.$domain;
1.23      albertel   78: 		$Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
1.22      albertel   79: 		    $slot_name;
1.28      albertel   80: 		foreach my $key (keys(%Apache::lonhomework::history)) {
                     81: 		    if ($key=~/^resource\.0\./) {
                     82: 			$Apache::lonhomework::results{$key}='';
                     83: 		    }
                     84: 		}
1.4       albertel   85: 		return 1;
                     86: 	    }
                     87: 	}
                     88:     }
                     89:     return 0;
                     90: }
                     91: 
1.25      albertel   92: sub get_version {
1.29      albertel   93:     my ($version,$previous);
1.25      albertel   94:     if ($env{'form.previousversion'} && 
1.36      albertel   95: 	$env{'form.previousversion'} ne 'current' &&
1.25      albertel   96: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
1.29      albertel   97: 	$version=$env{'form.previousversion'};
                     98: 	$previous=1;
                     99:     } else {
                    100: 	$version=$Apache::lonhomework::history{'resource.version'};
                    101: 	$previous=0;
                    102:     }
                    103:     if (wantarray) {
                    104: 	return ($version,$previous);
1.25      albertel  105:     }
1.29      albertel  106:     return $version;
1.25      albertel  107: }
                    108: 
1.8       albertel  109: sub add_previous_version_button {
1.25      albertel  110:     my ($status)=@_;
1.8       albertel  111:     my $result;
1.29      albertel  112:     if ($Apache::lonhomework::history{'resource.version'} eq '') {
1.25      albertel  113: 	return '';
                    114:     }
1.29      albertel  115:     if ($Apache::lonhomework::history{'resource.version'} < 2 &&
                    116: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  117: 	return '';
                    118:     }
1.29      albertel  119:     my $version=&get_version();
                    120:     if ($env{'form.previousversion'} ne '' &&
                    121: 	$env{'form.previousversion'} eq $version) {
                    122: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
                    123: 	    "</h3>\n";
                    124:     }
                    125:     my @to_show;
                    126:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
                    127: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
                    128: 	    push(@to_show,$test_version);
                    129: 	}
                    130:     }
                    131:     my $list='<option>'.
                    132: 	join("</option>\n<option>",@to_show).
                    133: 	     "</option>\n";
1.36      albertel  134:     $list.='<option value="current">'.&mt('Current').'</option>';
1.29      albertel  135:     $result.='<form name="getprevious" method="POST" action="';
                    136:     my $uri=$env{'request.uri'};
                    137:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    138:     $result.=$uri.'">'.
                    139: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
                    140: <option>'.&mt('Pick one').'</option>
                    141: '.$list.'
                    142: </select>')."</form>";
1.8       albertel  143:     return $result;
                    144: }
                    145: 
1.13      albertel  146: sub add_grading_button {
1.29      albertel  147:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  148: 	&mt("Get a submission to grade").'" />';
                    149:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.40      albertel  150:     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.34      albertel  151: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
                    152: 	$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
                    153: 
                    154: 	$result.=' <input type="submit" name="reviewagrading" value="'.
                    155: 	    &mt("Select an entry from the grading queue").'" /> </p>'."\n";
                    156: 
                    157: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
                    158: 	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
1.32      albertel  159: 	$result.=' <input type="submit" name="reviewasubmission" value="'.
1.34      albertel  160: 	    &mt("Select an entry from the review queue").'" /> </p>'."\n";
1.49    ! albertel  161: 	$result.=' <input type="submit" name="regradeasubmission" value="'.
        !           162: 	    &mt("Select a user to regrade.").'" /> </p>'."\n";
1.32      albertel  163:     }
1.13      albertel  164:     return $result;
                    165: }
                    166: 
1.22      albertel  167: sub add_request_another_attempt_button {
1.38      albertel  168:     my ($text)=@_;
                    169:     if (!$text) { $text="Request another attempt"; }
1.25      albertel  170:     my $result;
1.36      albertel  171:     my $symb=&Apache::lonnet::symbread();
1.37      albertel  172:     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
1.38      albertel  173:     my $action='get_reservation';
1.37      albertel  174:     if ($slot_name) {
1.38      albertel  175: 	$text="Change reservation.";
                    176: 	$action='change_reservation';
1.37      albertel  177: 	my $description=&Apache::slotrequest::get_description($slot_name,
                    178: 							      $slot);
                    179: 	$result.=(<<STUFF);
                    180: <p> Will be next available: $description </p>
                    181: STUFF
                    182:     }
1.38      albertel  183:     
                    184:     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
                    185:     $symb=&Apache::lonnet::escape($symb);
                    186:     $result.='<form method="POST" action="/adm/slotrequest">'.
                    187: 	'<input type="hidden" name="symb" value="'.$symb.'" />'.
                    188: 	'<input type="hidden" name="command" value="'.$action.'" />'.
                    189: 	'<input type="submit" name="requestattempt" value="'.
                    190: 	&mt($text).'" />'.
                    191: 	'</form>';
1.25      albertel  192:     return $result;
1.22      albertel  193: }
                    194: 
1.30      albertel  195: sub preserve_grade_info {
                    196:     my $result;
                    197:     # if we are viewing someone else preserve that info
                    198:     if (defined $env{'form.grade_symb'}) {
                    199: 	foreach my $field ('symb','courseid','domain','username') {
                    200: 	    $result .= '<input type="hidden" name="grade_'.$field.
                    201: 		'" value="'.$env{"form.grade_$field"}.'" />'."\n";
                    202: 	}
                    203:     }
                    204:     return $result;
                    205: }
                    206: 
1.1       albertel  207: sub start_Task {
                    208:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    209: 
1.4       albertel  210:     my ($status,$accessmsg,$slot);
1.16      albertel  211:     if ($target ne 'webgrade') {
                    212: 	&Apache::structuretags::initialize_storage();
                    213: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    214:     } 
                    215: 
1.4       albertel  216:     $Apache::lonhomework::parsing_a_task=1;
1.1       albertel  217:     #should get back a <html> or the neccesary stuff to start XML/MathML
                    218:     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
                    219: 	&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.16      albertel  220:     
1.8       albertel  221:     if ($target eq 'web') {
1.13      albertel  222: 	if ($Apache::lonhomework::modifygrades) {
                    223: 	    $body_tag_start.='<form name="gradesubmission" method="POST" action="';
                    224: 	    my $uri=$env{'request.uri'};
                    225: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    226: 	    $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
1.38      albertel  227: 	    my $symb=&Apache::lonnet::symbread();
1.40      albertel  228: 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
                    229: 		$body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
                    230: 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
                    231: 		    '<input type="hidden" name="command" value="showslots" />'.
                    232: 		    '<input type="submit" name="requestattempt" value="'.
                    233: 		    &mt('Show Slot list').'" />'.
                    234: 		    '</form>';
                    235: 	    }
1.13      albertel  236: 	}
1.8       albertel  237:     }
1.21      albertel  238:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  239: 	$target eq 'tex') {
1.29      albertel  240: 	my ($version,$previous)=&get_version();
1.14      albertel  241: 	($status,$accessmsg,my $slot_name,$slot) = 
1.4       albertel  242: 	    &Apache::lonhomework::check_task_access('0');
1.9       albertel  243: 	push(@Apache::inputtags::status,$status);
1.14      albertel  244: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  245: 	my $expression='$external::datestatus="'.$status.'";';
1.23      albertel  246: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
1.1       albertel  247: 	&Apache::run::run($expression,$safeeval);
                    248: 	&Apache::lonxml::debug("Got $status");
1.25      albertel  249: 	$body_tag_start.=&add_previous_version_button($status);
1.29      albertel  250: 	if (!$previous && (
                    251: 			   ( $status eq 'CLOSED' ) ||
                    252: 			   ( $status eq 'BANNED') ||
                    253: 			   ( $status eq 'UNAVAILABLE') ||
                    254: 			   ( $status eq 'NOT_IN_A_SLOT') ||
                    255: 			   ( $status eq 'NEEDS_CHECKIN') ||
                    256: 			   ( $status eq 'WAITING_FOR_GRADE') ||
                    257: 			   ( $status eq 'INVALID_ACCESS') )) {
1.1       albertel  258: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
                    259: 	    if ( $target eq "web" ) {
1.4       albertel  260: 		$result.= $head_tag_start.'</head>'.$body_tag_start;
                    261: 		my $msg;
1.1       albertel  262: 		if ($status eq 'UNAVAILABLE') {
                    263: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  264: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    265: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38      albertel  266: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  267: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    268: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    269: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  270: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    271: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.1       albertel  272: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    273: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    274: 		}
                    275: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    276: 		    $msg.='The problem '.$accessmsg;
                    277: 		}
                    278: 		$result.=$msg.'<br />';
                    279: 	    } elsif ($target eq 'tex') {
                    280: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    281: 		if ($status eq 'UNAVAILABLE') {
                    282: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    283: 		} else {
                    284: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    285: 		}
1.22      albertel  286: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  287: 		if ($status eq 'NEEDS_CHECKIN') {
1.41      albertel  288: 		    &proctor_check_auth($slot_name,$slot);
1.4       albertel  289: 		}
1.1       albertel  290: 	    }
                    291: 	} elsif ($target eq 'web') {
                    292: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    293: 	    $result.="$head_tag_start<title>$name</title></head>
1.36      albertel  294:               $body_tag_start \n";
                    295: 	    
1.29      albertel  296: 	    my ($version,$previous)=&get_version();
1.25      albertel  297: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel  298: 		$result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
1.29      albertel  299: 		if (!$previous) {
                    300: 		    $result.=&add_request_another_attempt_button();
                    301: 		}
1.22      albertel  302: 	    }
1.25      albertel  303: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
1.22      albertel  304: 		$result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
                    305: 	    }
1.36      albertel  306: 	    $result.=$form_tag_start.
                    307: 		'<input type="hidden" name="submitted" value="yes" />';
                    308: 	    $result.=&preserve_grade_info();
                    309: 
1.1       albertel  310: 	}
1.21      albertel  311:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    312: 	      $target eq 'webgrade') {
1.32      albertel  313: 	my $webgrade='yes';
1.21      albertel  314: 	if ($target eq 'webgrade') {
1.32      albertel  315: 	    $result.=$head_tag_start.$body_tag_start;
1.49    ! albertel  316: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
        !           317: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  318: 	}
1.33      albertel  319: 	# FIXME Blast! still need to reorg this, need to reshow the
                    320:         #       queue being reviewed once done with the grade pass...
                    321:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    322:         #       perhaps do a search if there is a key that is mine and if
                    323:         #       there isn't reshow the queue....
                    324: 	my ($todo,$status_code)=&get_key_todo($target);
                    325: 
                    326: 	&Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
                    327: 	if ($todo) {
                    328: 	    &setup_env_for_other_user($todo,$safeeval);
                    329: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    330: 	    $result.="\n".'<table><tr><td>Found '.
                    331: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    332: 	    $form_tag_start.=
                    333: 		'<input type="hidden" name="gradingkey" value="'.
                    334: 		&Apache::lonnet::escape($todo).'" />';
                    335: 	    $Apache::bridgetask::queue_key=$todo;
                    336: 	    &Apache::structuretags::initialize_storage();
                    337: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    338: 	    if ($target eq 'webgrade') {
1.49    ! albertel  339: 		#$result.='<br />After -'.&show_queue($env{'form.queue'});
1.33      albertel  340: 		$result.="\n".'<table width="100%" style="width:100%" border="1">';
                    341: 		if ($status_code eq 'selected') {
                    342: 		    $form_tag_start.=
                    343: 			'<input type="hidden" name="queuemode" value="selected" />';
                    344: 		}
                    345: 	    }
1.15      albertel  346: 	} else {
1.33      albertel  347: 	    if ($target eq 'webgrade') {
                    348: 		$result.="\n";
                    349: 		if      ($status_code eq 'stop') {
                    350: 		    $result.='<b>'.&mt("Stopped grading.").'</b>';
                    351: 		} elsif ($status_code eq 'lock_failed') {
                    352: 		    $result.='<b>'.&mt("Failed to lock the request record.").'</b>';
                    353: 		} elsif ($status_code eq 'unlock') {
                    354: 		    $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
                    355: 		    $result.=&show_queue($env{'form.queue'},1);
                    356: 		} elsif ($status_code eq 'show_list') {
                    357: 		    $result.=&show_queue($env{'form.queue'},1);
1.49    ! albertel  358: 		} elsif ($status_code eq 'select_user') {
        !           359: 		    $result.=&select_user();
1.33      albertel  360: 		} else {
                    361: 		    $result.='<b>'.&mt("No user to be graded.").'</b>';
1.32      albertel  362: 		}
1.21      albertel  363: 	    }
1.33      albertel  364: 	    $webgrade='no';
                    365: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
1.32      albertel  366: 	}
                    367: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
                    368: 	    $result.=$form_tag_start;
                    369: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    370: 		$webgrade.'" />';
                    371: 	    $result.='<input type="hidden" name="queue" value="'.
                    372: 		$env{'form.queue'}.'" />';
1.15      albertel  373: 	}
1.1       albertel  374:     } else {
                    375: 	# page_start returned a starting result, delete it if we don't need it
                    376: 	$result = '';
                    377:     }
                    378:     return $result;
                    379: }
                    380: 
1.32      albertel  381: sub get_key_todo {
                    382:     my ($target)=@_;
                    383:     my $todo;
1.33      albertel  384: 
                    385:     if (defined($env{'form.reviewasubmission'})) {
                    386: 	&Apache::lonnet::logthis("review a submission....");
                    387: 	$env{'form.queue'}='reviewqueue';
                    388: 	return (undef,'show_list');
                    389:     }
                    390: 
                    391:     if (defined($env{'form.reviewagrading'})) {
                    392: 	&Apache::lonxml::debug("review a grading....");
                    393: 	$env{'form.queue'}='gradingqueue';
                    394: 	return (undef,'show_list');
                    395:     }
                    396: 
1.49    ! albertel  397:     if (defined($env{'form.regradeasubmission'})) {
        !           398: 	&Apache::lonxml::debug("regrade a grading....");
        !           399: 	$env{'form.queue'}='none';
        !           400: 	return (undef,'select_user');
        !           401:     }
        !           402: 
1.32      albertel  403:     my $queue=$env{'form.queue'};
1.33      albertel  404: 
1.32      albertel  405:     if (!defined($queue)) {
                    406: 	$env{'form.queue'}=$queue='gradingqueue';
                    407:     }
1.33      albertel  408: 
1.32      albertel  409:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  410: 
1.49    ! albertel  411:     if ($env{'form.queue'} eq 'none') {
        !           412: 	if (defined($env{'form.gradingkey'})) {
        !           413: 	    if ($target eq 'webgrade') {
        !           414: 		if ($env{'form.stop'}) {
        !           415: 		    return (undef,'stop');
        !           416: 		} elsif ($env{'form.next'}) {
        !           417: 		    return (undef,'show_list');
        !           418: 		}
        !           419: 	    }
        !           420: 	    return ($gradingkey,'selected');
        !           421: 	} else {
        !           422: 	    return (undef,'show_list');
        !           423: 	}
        !           424:     }
1.32      albertel  425:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  426: 	&& !defined($env{'form.gradingaction'}) 
                    427: 	&& $env{'form.queuemode'} eq 'selected') {
                    428: 	
                    429: 	my $who=&queue_key_locked($queue,$gradingkey);
                    430: 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    431: 	if ($who eq $me) {
                    432: 	    &Apache::lonxml::debug("Found a key was given to me");
                    433: 	    return ($gradingkey,'selected');
                    434: 	} else {
                    435: 	    return (undef,'show_list');
                    436: 	}
                    437: 
                    438:     }
                    439: 
                    440:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    441: 	if ($env{'form.gradingaction'} eq 'resume') {
                    442: 	    delete($env{'form.gradingaction'});
                    443: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  444: 	    return ($gradingkey);
1.33      albertel  445: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    446: 	    &Apache::lonxml::debug("Unlocking a key ".
                    447: 				     &check_queue_unlock($queue,$gradingkey,1));
                    448: 	    return (undef,'unlock');
                    449: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    450: 	    &Apache::lonxml::debug("Locking a key");
                    451: 	    if (&lock_key($queue,$gradingkey)) {
                    452: 		&Apache::lonxml::debug("Success $queue");
                    453: 		return ($gradingkey);
                    454: 	    }
                    455: 	    &Apache::lonxml::debug("Failed $queue");
                    456: 	    return (undef,'lock_failed');
1.32      albertel  457: 	}
                    458:     }
1.33      albertel  459: 
                    460:     if ($env{'form.queuemode'} ne 'selected') {
                    461: 	# don't get something new from the queue if they hit the stop button
                    462:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    463: 	    && !$env{'form.gradingaction'}) {
                    464: 	    &Apache::lonxml::debug("Getting anew $queue");
                    465: 	    return (&get_from_queue($queue));
                    466: 	} else {
                    467: 	    return (undef,'stop');
                    468: 	}
1.32      albertel  469:     }
1.33      albertel  470:     return (undef,undef)
1.32      albertel  471: }
                    472: 
1.1       albertel  473: sub end_Task {
                    474:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    475:     my $result='';
                    476:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  477:     my ($version,$previous)=&get_version();
1.1       albertel  478:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  479: 	$target eq 'tex') {
1.1       albertel  480: 	if (
1.11      albertel  481: 	    (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.1       albertel  482: 	    ($target eq 'answer') || ($target eq 'tex')
                    483: 	   ) {
                    484: 	    if ($target eq 'web') {
1.29      albertel  485: 		if ($status eq 'CAN_ANSWER' && !$previous) {
1.15      albertel  486: 		    $result.="\n".'<table border="1">'.
1.28      albertel  487: 			&Apache::inputtags::file_selector("$version.0",
                    488: 							  "bridgetask","*",
1.46      albertel  489: 							  'portfolioonly',
                    490: 							  '
                    491: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    492: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  493: 							  "</table>";
                    494: 		    $result.=&Apache::inputtags::gradestatus('0');
                    495: 		}
1.13      albertel  496: 	    } 
                    497: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  498: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    499: 	    }
                    500: 	}
1.29      albertel  501: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  502: 	    my $award='SUBMITTED';
1.28      albertel  503: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  504: 						    'portfiles',\$award);
1.14      albertel  505: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  506: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    507: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    508: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    509: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    510: 
                    511: 		$Apache::lonhomework::results{"resource.0.award"}=
                    512: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    513: 		    $award;
1.10      albertel  514: 	    }
1.4       albertel  515: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    516: 	    &Apache::structuretags::finalize_storage();
1.14      albertel  517: 	    if ($award eq 'SUBMITTED') {
1.31      albertel  518: 		&add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
1.14      albertel  519: 	    }
1.1       albertel  520: 	}
1.32      albertel  521: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  522: 	    my $optional_required=
                    523: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    524: 					   $safeeval);
                    525: 	    my $optional_passed=0;
                    526: 	    my $mandatory_failed=0;
                    527: 	    my $ungraded=0;
                    528: 	    my $review=0;   
1.21      albertel  529: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  530: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    531: 		my $status=
1.25      albertel  532: 		    $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
1.20      albertel  533: 		my $mandatory=
                    534: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    535: 		if ($status eq 'pass') {
                    536: 		    if (!$mandatory) { $optional_passed++; }
                    537: 		} elsif ($status eq 'fail') {
                    538: 		    if ($mandatory) { $mandatory_failed++; }
                    539: 		} elsif ($status eq 'ungraded') {
                    540: 		    $ungraded++;
                    541: 		} elsif ($status eq 'review') {
                    542: 		    $review++;
1.49    ! albertel  543: 		} else {
        !           544: 		    $ungraded++;
        !           545: 		}
1.20      albertel  546: 	    }
                    547: 	    if ($optional_passed < $optional_required) {
                    548: 		$mandatory_failed++;
                    549: 	    }
1.21      albertel  550: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
                    551: 	    $Apache::lonhomework::results{'resource.grader'}=
1.20      albertel  552: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    553: 	    if ($review) {
1.25      albertel  554: 		$Apache::lonhomework::results{"resource.$version.status"}='review';
1.33      albertel  555: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    556: 		    &check_queue_unlock($env{'form.queue'});
                    557: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    558: 		} else {
1.49    ! albertel  559: 		    &move_between_queues($env{'form.queue'},'reviewqueue');
1.33      albertel  560: 		}
1.20      albertel  561: 	    } elsif ($ungraded) {
1.25      albertel  562: 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
1.49    ! albertel  563: 		if ($env{'form.queue'} eq 'reviewqueue' ||
        !           564: 		    $env{'form.queue'} eq 'none' ) {
1.33      albertel  565: 		    &Apache::lonxml::debug("moving back.");
1.49    ! albertel  566: 		    &move_between_queues($env{'form.queue'},'gradingqueue');
1.33      albertel  567: 		} else {
                    568: 		    &check_queue_unlock($env{'form.queue'});
                    569: 		}
1.20      albertel  570: 	    } elsif ($mandatory_failed) {
1.25      albertel  571: 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
                    572: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    573: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    574: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel  575: 		&remove_from_queue($env{'form.queue'}); 
                    576: 
                    577: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    578: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    579: 		    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    580: 		&Apache::grades::version_portfiles(
                    581: 					\%Apache::lonhomework::results,
                    582: 					 ["$version.0.bridgetask"],$courseid,
                    583: 					 $symb,$udom,$uname,
                    584: 					 ["$version.0.bridgetask"]);
1.20      albertel  585: 	    } else {
1.25      albertel  586: 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
                    587: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    588: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    589: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  590: 		&remove_from_queue($env{'form.queue'});
1.39      albertel  591: 
                    592: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    593: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                    594: 		    $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                    595: 		&Apache::grades::version_portfiles(
                    596: 					\%Apache::lonhomework::results,
                    597: 					 ["$version.0.bridgetask"],$courseid,
                    598: 					 $symb,$udom,$uname,
                    599: 					 ["$version.0.bridgetask"]);
1.20      albertel  600: 	    }
1.26      albertel  601: 	    $Apache::lonhomework::results{"resource.status"}=
                    602: 		$Apache::lonhomework::results{"resource.$version.status"};
1.28      albertel  603: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  604: 		$Apache::lonhomework::results{"resource.0.award"}=
                    605: 		    $Apache::lonhomework::results{"resource.$version.award"};
                    606: 		$Apache::lonhomework::results{"resource.0.awarded"}=
                    607: 		    $Apache::lonhomework::results{"resource.$version.awarded"};
                    608: 		$Apache::lonhomework::results{"resource.0.solved"}=
                    609: 		    $Apache::lonhomework::results{"resource.$version.solved"};
1.25      albertel  610: 	    }
1.21      albertel  611: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  612: 	}
1.15      albertel  613:     } elsif ($target eq 'webgrade') {
1.18      albertel  614: 	$result.="</table>\n<hr />";
1.20      albertel  615: 	#$result.='<input type="submit" name="next" value="'.
                    616: 	#    &mt('Save &amp; Next').'" /> ';
                    617: 	#$result.='<input type="submit" name="end" value="'.
                    618: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    619: 	#$result.='<input type="submit" name="throwaway" value="'.
                    620: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    621: 	#$result.='<input type="submit" name="save" value="'.
                    622: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  623: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  624:     } elsif ($target eq 'meta') {
1.2       albertel  625: 	$result.='<parameter part="0" package="Task"></parameter>'."\n";
1.1       albertel  626: 	#$result.=&Apache::response::meta_part_order();
                    627: 	#$result.=&Apache::response::meta_response_order();
                    628:     }
1.4       albertel  629:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  630:     return $result;
                    631: }
                    632: 
1.31      albertel  633: sub move_between_queues {
                    634:     my ($src_queue,$dest_queue)=@_;
1.49    ! albertel  635:     my $cur_data;
        !           636:     if ($src_queue ne 'none') {
        !           637: 	$cur_data=&get_queue_data($src_queue);
        !           638: 	if (!$cur_data) { return 'not_exist'; }
        !           639:     } else {
        !           640: 	$cur_data = ['none'];
        !           641:     }
1.31      albertel  642:     my $result=&add_to_queue($dest_queue,$cur_data->[0]);
                    643:     if ($result ne 'ok') {
                    644: 	return $result;
                    645:     }
                    646:     &check_queue_unlock($src_queue);
                    647:     return &remove_from_queue($src_queue);
1.21      albertel  648: }
                    649: 
                    650: sub check_queue_unlock {
1.32      albertel  651:     my ($queue,$key,$allow_not_me)=@_;
1.49    ! albertel  652:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel  653:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel  654:     if (!defined($key)) {
                    655: 	$key="$symb\0queue\0$uname\@$udom";
                    656:     }
1.30      albertel  657:     my $cnum=$env{'course.'.$cid.'.num'};
                    658:     my $cdom=$env{'course.'.$cid.'.domain'};
                    659:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    660:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                    661:     if  ($who eq $me) {
1.32      albertel  662: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                    663:     } elsif ($allow_not_me) {
1.33      albertel  664: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel  665: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel  666:     }
1.32      albertel  667:     return 'not_owner';
1.21      albertel  668: }
                    669: 
                    670: sub remove_from_queue {
1.30      albertel  671:     my ($queue)=@_;
1.49    ! albertel  672:     if ($queue eq 'none') { return 'ok'; }
1.27      albertel  673:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    674:     my $cnum=$env{'course.'.$cid.'.num'};
                    675:     my $cdom=$env{'course.'.$cid.'.domain'};
                    676:     my $key="$symb\0queue\0$uname\@$udom";
                    677:     my @keys=($key,"$key\0locked");
1.31      albertel  678:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel  679: }
                    680: 
1.16      albertel  681: sub setup_env_for_other_user {
                    682:     my ($queue_key,$safeeval)=@_;
                    683:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel  684:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel  685:     $env{'form.grade_symb'}=$symb;
                    686:     $env{'form.grade_domain'}=$udom;
                    687:     $env{'form.grade_username'}=$uname;
                    688:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                    689:     &Apache::lonxml::initialize_rndseed($safeeval);
                    690: }
                    691: 
1.31      albertel  692: sub get_queue_data {
                    693:     my ($queue)=@_;
                    694:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    695:     my $cnum=$env{'course.'.$cid.'.num'};
                    696:     my $cdom=$env{'course.'.$cid.'.domain'};
                    697:     my $todo="$symb\0queue\0$uname\@$udom";
                    698:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                    699:     if ($key eq $todo && ref($value)) {
                    700: 	return $value;
                    701:     }
                    702:     return undef;
                    703: }
                    704: 
1.49    ! albertel  705: sub check_queue_for_key {
        !           706:     my ($cid,$queue,$todo)=@_;
        !           707:     my $cnum=$env{'course.'.$cid.'.num'};
        !           708:     my $cdom=$env{'course.'.$cid.'.domain'};
        !           709:     my %results=
        !           710: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
        !           711:     
        !           712:     if (exists($results{$todo}) && ref($results{$todo})) {
        !           713: 	if (defined($results{"$todo\0locked"})) {
        !           714: 	    return 'locked';
        !           715: 	}
        !           716: 	return 'enqueued';
        !           717:     }
        !           718:     return undef;
        !           719: }
        !           720: 
1.14      albertel  721: sub add_to_queue {
1.31      albertel  722:     my ($queue,$slot_name)=@_;
1.49    ! albertel  723:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel  724:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    725:     my $cnum=$env{'course.'.$cid.'.num'};
                    726:     my $cdom=$env{'course.'.$cid.'.domain'};
                    727:     my %data;
1.31      albertel  728:     $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
                    729:     return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
1.14      albertel  730: }
                    731: 
                    732: sub show_queue {
1.32      albertel  733:     my ($queue,$with_selects)=@_;
1.14      albertel  734:     my $result;
                    735:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    736:     my $cnum=$env{'course.'.$cid.'.num'};
                    737:     my $cdom=$env{'course.'.$cid.'.domain'};
1.16      albertel  738:     my $regexp="^$symb\0";
1.30      albertel  739:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel  740:     my ($tmp)=%queue;
                    741:     if ($tmp=~/^error: 2 /) {
1.33      albertel  742: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel  743:     }
1.33      albertel  744:     $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
1.32      albertel  745:     if ($with_selects) { $result.="<th></th>"; }
                    746:     $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
1.14      albertel  747:     foreach my $key (sort(keys(%queue))) {
1.32      albertel  748: 	if ($key=~/locked$/ && !$with_selects) {
1.16      albertel  749: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    750: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  751: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel  752: 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
1.32      albertel  753: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.16      albertel  754: 	    my ($symb,undef) = split("\0",$key);
                    755: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  756: 	    $result.="<tr><td>$title</td><td></td>";
1.16      albertel  757: 	    $result.='<td>last queue modification time</td><td>'.
                    758: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel  759: 	} elsif ($key!~/(timestamp|locked)$/) {
1.16      albertel  760: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    761: 	    my $title=&Apache::lonnet::gettitle($symb);
1.32      albertel  762: 	    $result.="<tr>";
1.35      albertel  763: 	    my $slot=$queue{$key}->[0];
                    764: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel  765: 	    if ($with_selects) {
                    766: 		my $ekey=&Apache::lonnet::escape($key);
                    767: 		my ($action,$description)=('select',&mt('Select'));
                    768: 		if (exists($queue{"$key\0locked"})) {
                    769: 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    770: 		    if ($me eq $queue{"$key\0locked"}) {
                    771: 			($action,$description)=('resume',&mt('Resume'));
                    772: 		    } else {
                    773: 			($action,$description)=('unlock',&mt('Unlock'));
                    774: 		    }
                    775: 		}
1.35      albertel  776: 		if (time > $slot_data{'endtime'}) {
                    777: 		    $result.=(<<FORM);
1.32      albertel  778: <td>
                    779: <form method="POST">
                    780:  <input type="hidden" name="gradingkey" value="$ekey" />
                    781:  <input type="hidden" name="queue" value="$queue" />
                    782:  <input type="hidden" name="gradingaction" value="$action" />
                    783:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel  784:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel  785:  <input type="submit" name="submit" value="$description" />
                    786: </form>
                    787: </td>
                    788: FORM
1.35      albertel  789: 
                    790:                 } else {
                    791: 		    $result.='<td>'.&mt("In Progress").'</td>'
                    792: 		}
1.32      albertel  793: 	    }
                    794: 	    $result.="<td>$title</td><td>$uname</td>";
1.27      albertel  795: 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1.20      albertel  796: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                    797: 		"</td></tr>";
1.16      albertel  798: 	}
1.14      albertel  799:     }
1.15      albertel  800:     $result.="</table><hr />\n";
1.14      albertel  801:     return $result;
                    802: }
                    803: 
1.34      albertel  804: sub get_queue_counts {
                    805:     my ($queue)=@_;
                    806:     my $result;
                    807:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    808:     my $cnum=$env{'course.'.$cid.'.num'};
                    809:     my $cdom=$env{'course.'.$cid.'.domain'};
                    810:     my $regexp="^$symb\0";
                    811:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                    812:     my ($tmp)=%queue;
                    813:     if ($tmp=~/^error: 2 /) {
                    814: 	return (0,0,0);
                    815:     }
                    816:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
                    817:     foreach my $key (sort(keys(%queue))) {
                    818: 	if ($key=~/locked$/) {
                    819: 	    $locks++;
                    820: 	} elsif ($key=~/timestamp$/) {
                    821: 	    #ignore
                    822: 	} elsif ($key!~/(timestamp|locked)$/) {
                    823: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    824: 	    $entries++;
                    825: 	    my $slot=$queue{$key}->[0];
                    826: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                    827: 	    if (time > $slot_data{'endtime'}) {
                    828: 		$ready_to_grade++;
                    829: 	    }
                    830: 	}
                    831:     }
                    832:     return ($entries,$ready_to_grade,$locks);
                    833: }
                    834: 
1.49    ! albertel  835: sub encode_queue_key {
        !           836:     my ($symb,$udom,$uname)=@_;
        !           837:     return "$symb\0queue\0$uname\@$udom";
        !           838: }
        !           839: 
1.14      albertel  840: sub decode_queue_key {
                    841:     my ($key)=@_;
                    842:     my ($symb,undef,$user) = split("\0",$key);
                    843:     my ($uname,$udom) = split('@',$user);
                    844:     return ($symb,$uname,$udom);
                    845: }
                    846: 
                    847: sub queue_key_locked {
1.30      albertel  848:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel  849:     if (!defined($cdom) || !defined($cnum)) {
                    850: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                    851: 	$cnum=$env{'course.'.$cid.'.num'};
                    852: 	$cdom=$env{'course.'.$cid.'.domain'};
                    853:     }
1.14      albertel  854:     my ($key_locked,$value)=
1.30      albertel  855: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel  856:     if ($key_locked eq "$key\0locked") {
                    857: 	return $value;
                    858:     }
                    859:     return undef;
                    860: }
                    861: 
                    862: sub pick_from_queue_data {
1.30      albertel  863:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
                    864:     foreach my $key (keys(%$queuedata)) {
1.14      albertel  865: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                    866: 	if ($check_section) {
                    867: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel  868: 	    if ($section eq $check_section) {
1.33      albertel  869: 		&Apache::lonxml::debug("my sec");
1.15      albertel  870: 		next;
                    871: 	    }
1.14      albertel  872: 	}
1.30      albertel  873: 	my $slot=$queuedata->{$key}[0];
1.14      albertel  874: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel  875: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel  876: 	    &Apache::lonxml::debug("not time");
1.15      albertel  877: 	    next;
                    878: 	}
1.30      albertel  879: 	if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
1.33      albertel  880: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel  881: 	    next;
                    882: 	}
1.14      albertel  883: 	return $key;
                    884:     }
                    885:     return undef;
                    886: }
                    887: 
1.15      albertel  888: sub find_mid_grade {
1.30      albertel  889:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel  890:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel  891:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    892:     if ($todo) {
1.30      albertel  893: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel  894: 	if ($who eq $me) { return $todo; }
                    895:     }
                    896:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel  897:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel  898:     foreach my $key (keys(%locks)) {
                    899: 	my $who=$locks{$key};
                    900: 	if ($who eq $me) {
                    901: 	    $todo=$key;
                    902: 	    $todo=~s/\0locked$//;
                    903: 	    return $todo;
                    904: 	}
                    905:     }
                    906:     return undef;
                    907: }
                    908: 
1.32      albertel  909: sub lock_key {
                    910:     my ($queue,$todo)=@_;
                    911:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    912:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    913:     my $cnum=$env{'course.'.$cid.'.num'};
                    914:     my $cdom=$env{'course.'.$cid.'.domain'};
                    915:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                    916: 					$cdom,$cnum);
1.33      albertel  917:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel  918:     if ($success eq 'ok') {
                    919: 	return 1;
                    920:     }
                    921:     return 0;
                    922: }
                    923: 
1.14      albertel  924: sub get_from_queue {
1.30      albertel  925:     my ($queue)=@_;
1.14      albertel  926:     my $result;
                    927:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    928:     my $cnum=$env{'course.'.$cid.'.num'};
                    929:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel  930:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel  931:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel  932:     if ($todo) { return $todo; }
1.14      albertel  933:     while (1) {
                    934: 	my $starttime=time;
1.30      albertel  935: 	&Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
1.14      albertel  936: 			     $cdom,$cnum);
1.33      albertel  937: 	&Apache::lonxml::debug("$starttime");
1.14      albertel  938: 	my $regexp="^$symb\0queue\0";
1.30      albertel  939: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel  940: 	#make a pass looking for a user _not_ in my section
1.14      albertel  941: 	if ($env{'request.course.sec'}) {
1.33      albertel  942: 	    &Apache::lonxml::debug("sce");
1.30      albertel  943: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                    944: 					\%queue,$cdom,$cnum);
1.33      albertel  945: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel  946: 	}
1.33      albertel  947: 	# no one _not_ in our section so look for any user that is
                    948: 	# ready for grading
1.14      albertel  949: 	if (!$todo) {
1.33      albertel  950: 	    &Apache::lonxml::debug("no sce");
1.31      albertel  951: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                    952: 					\%queue,$cdom,$cnum);
1.33      albertel  953: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel  954: 	}
                    955: 	# no user to grade 
                    956: 	if (!$todo) { last; }
1.33      albertel  957: 	&Apache::lonxml::debug("got $todo");
1.14      albertel  958: 	# otherwise found someone so lets try to lock them
1.32      albertel  959: 	# unless someone else already picked them
                    960: 	if (!&lock_key($queue,$todo)) { next; }
1.14      albertel  961: 	my (undef,$endtime)=
1.30      albertel  962: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel  963: 				 $cdom,$cnum);
1.33      albertel  964: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel  965: 	# someone else already modified the queue, 
                    966: 	# perhaps our picked user wass already fully graded between
                    967: 	# when we picked him and when we locked his record? so lets
                    968: 	# double check.
                    969: 	if ($endtime != $starttime) {
                    970: 	    my ($key,$value)=
1.30      albertel  971: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel  972: 				     $cdom,$cnum);
1.33      albertel  973: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel  974: 	    if ($key eq $todo && ref($value)) {
                    975: 	    } else {
1.30      albertel  976: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel  977: 				     $cdom,$cnum);
1.33      albertel  978: 		&Apache::lonxml::debug("del");
1.14      albertel  979: 		next;
                    980: 	    }
                    981: 	}
1.33      albertel  982: 	&Apache::lonxml::debug("last $todo");
1.14      albertel  983: 	last;
                    984:     }
                    985:     return $todo;
                    986: }
                    987: 
1.49    ! albertel  988: sub select_user {
        !           989:     my ($symb,$cid)=&Apache::lonxml::whichuser();
        !           990:     my $result.='<table border="1">';
        !           991: 
        !           992:     &Apache::grades::init_perm();
        !           993:     my ($classlist,$section,$fullname)=&Apache::grades::getclasslist('all',);
        !           994:     &Apache::grades::reset_perm();
        !           995: 
        !           996:     foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
        !           997: 	my ($uname,$udom) = split(/:/,$student);
        !           998: 	my %status = &get_student_status($symb,$cid,$udom,$uname);
        !           999: 	my $queue = 'none';
        !          1000: 	if ($status{'reviewqueue'} eq 'enqueued') {
        !          1001: 	    $queue = 'reviewqueue';
        !          1002: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
        !          1003: 	    $queue = 'gradingqueue';
        !          1004: 	}
        !          1005: 	my $todo = 
        !          1006: 	    &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
        !          1007: 	$result.=<<RESULT;
        !          1008: <tr>
        !          1009:   <td>
        !          1010:     <form method="POST">
        !          1011:       <input type="hidden" name="gradingkey" value="$todo" />
        !          1012:       <input type="hidden" name="queue" value="$queue" />
        !          1013:       <input type="hidden" name="webgrade" value="no" />
        !          1014:      <input type="submit" name="submit" value="Regrade" />
        !          1015:     </form>
        !          1016:   <td>$fullname->{$student}</td>
        !          1017:   <td>
        !          1018: RESULT
        !          1019: 
        !          1020:         if ($status{'status'} eq 'pass') {
        !          1021: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
        !          1022: 	} elsif ($status{'status'} eq 'fail') {
        !          1023: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
        !          1024: 	} elsif ($status{'status'} eq 'review') {
        !          1025: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
        !          1026: 	} elsif ($status{'status'} eq 'ungraded') {
        !          1027: 	    $result .= &mt('Ungraded');
        !          1028: 	} elsif ($status{'status'} ne '') {
        !          1029: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
        !          1030: 	} else {
        !          1031: 	    $result.="&nbsp;";
        !          1032: 	}
        !          1033: 	if ($status{'version'}) {
        !          1034: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
        !          1035: 	}
        !          1036: 	$result.= '</td><td>';
        !          1037: 	if ($status{'reviewqueue'} eq 'enqueued') {
        !          1038: 	    $result .= &mt('Awaiting Review');
        !          1039: 	} elsif ($status{'reviewqueue'} eq 'locked') {
        !          1040: 	    $result .= &mt('Under Review');
        !          1041: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
        !          1042: 	    $result .= &mt('Awaiting Grading');
        !          1043: 	} elsif ($status{'gradingqueue'} eq 'locked') {
        !          1044: 	    $result .= &mt('Being Graded');
        !          1045: 	} else {
        !          1046: 	    $result.="&nbsp;";
        !          1047: 	}
        !          1048: 	$result.= '</td></tr>';
        !          1049:     }
        !          1050:     $result.='</table>';
        !          1051:     return $result;
        !          1052: }
        !          1053: 
        !          1054: sub get_student_status {
        !          1055:     my ($symb,$cid,$udom,$uname)=@_;
        !          1056:     my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
        !          1057: 					  $udom,$uname);
        !          1058:     my %status;
        !          1059:     $status{'status'}=$record{'resource.status'};
        !          1060:     $status{'version'}=$record{'resource.version'};
        !          1061:     $status{'grader'}=$record{'resource.grader'};
        !          1062:     $status{'reviewqueue'}=&check_queue_for_key($cid,'reviewqueue',
        !          1063: 				       &encode_queue_key($symb,$udom,$uname));
        !          1064:     $status{'gradingqueue'}=&check_queue_for_key($cid,'gradingqueue',
        !          1065: 				       &encode_queue_key($symb,$udom,$uname));
        !          1066:     return %status;
        !          1067: }
        !          1068: 
1.1       albertel 1069: sub start_ClosingParagraph {
                   1070:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1071:     my $result;
                   1072:     if ($target eq 'web') {
1.13      albertel 1073:     } elsif ($target eq 'webgrade') {
                   1074: 	&Apache::lonxml::startredirection();
1.1       albertel 1075:     }
                   1076:     return $result;
                   1077: }
                   1078: 
                   1079: sub end_ClosingParagraph {
                   1080:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1081:     my $result;
                   1082:     if ($target eq 'web') {
1.13      albertel 1083:     } elsif ($target eq 'webgrade') {
                   1084: 	&Apache::lonxml::endredirection();
1.1       albertel 1085:     }
                   1086:     return $result;
                   1087: }
                   1088: 
1.19      albertel 1089: sub get_id {
                   1090:     my ($parstack,$safeeval)=@_;
                   1091:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1092:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1093:     return $id;
                   1094: }
                   1095: 
1.1       albertel 1096: my %dimension;
                   1097: sub start_Dimension {
                   1098:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1099:     undef(%dimension);
1.19      albertel 1100:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel 1101:     $Apache::bridgetask::dimension=$dim_id;
                   1102:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                   1103:     undef(@Apache::bridgetask::instance);
1.20      albertel 1104:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                   1105: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1106:     return '';
                   1107: }
                   1108: 
1.13      albertel 1109: sub get_instance {
                   1110:     &Apache::response::pushrandomnumber();
                   1111:     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
1.29      albertel 1112:     my $num=@order;
                   1113:     my $version=&get_version();
                   1114:     my $which=($version-1)%$num;
                   1115:     return $order[$which];
1.13      albertel 1116: }
                   1117: 
1.18      albertel 1118: {
                   1119:     my $last_link;
                   1120:     sub end_Dimension {
                   1121: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1122: 	my $result;
1.25      albertel 1123: 	my $dim=&get_id($parstack,$safeeval);
1.19      albertel 1124: 	my $instance=&get_instance();
1.25      albertel 1125: 	my $version=&get_version();
1.18      albertel 1126: 	if ($target eq 'web') {
1.47      albertel 1127: 	    @Apache::scripttag::parser_env = @_;
                   1128: 	    $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
                   1129: 	    @Apache::scripttag::parser_env = @_;
                   1130: 	    $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.26      albertel 1131: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
                   1132: 		$Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel 1133: 		foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel 1134: 		    my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
                   1135: 		    my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
1.22      albertel 1136: 		    $result.='<table border="1"><tr><td>';
                   1137: 		    if ($status eq 'fail') {
                   1138: 			$result.='<font color="red">'.&mt('Did not pass').'</font>';
                   1139: 		    } elsif ($status eq 'pass') {
                   1140: 			$result.='<font color="green">'.&mt('Passed').'</font>';
                   1141: 		    } else {
1.49    ! albertel 1142: 			&Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
1.22      albertel 1143: 		    }
                   1144: 		    $result.='</td></tr><tr><td>';
1.25      albertel 1145: 		    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
                   1146: 			$result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
1.22      albertel 1147: 		    }
                   1148: 		    $result.=$dimension{$instance.'.criteria.'.$id}.
                   1149: 			'</td></tr></table>';
                   1150: 		}
                   1151: 	    }
1.18      albertel 1152: 	} elsif ($target eq 'webgrade') {
1.47      albertel 1153: 	    # in case of any side effects that we need
                   1154: 	    @Apache::scripttag::parser_env = @_;
                   1155: 	    &Apache::scripttag::xmlparse($dimension{'intro'});
                   1156: 	    @Apache::scripttag::parser_env = @_;
                   1157: 	    &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1.18      albertel 1158: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1159: 		my $link='criteria_'.$instance.'_'.$id;
1.25      albertel 1160: 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1.19      albertel 1161: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel 1162: 		    '<a name="'.$link.'" />'.
                   1163: 		    '<a name="next_'.$last_link.'" />'.
1.47      albertel 1164: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
                   1165: 		@Apache::scripttag::parser_env = @_;
                   1166: 		$result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
                   1167: 		$result.='</textarea>'.
1.18      albertel 1168: 		    #$dimension{$instance.'.criteria.'.$id}.
                   1169: 		    '</td>'.
1.19      albertel 1170: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.25      albertel 1171: 		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
1.18      albertel 1172: 		    '</td>'.
                   1173: 		    '<td>'.
1.47      albertel 1174: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
1.30      albertel 1175: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
                   1176: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
                   1177: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1.18      albertel 1178: 		    '</td>'.
                   1179: 		    '<td>'.
                   1180: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel 1181: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
                   1182: 		    '<input type="submit" name="next" value="'.
                   1183: 		    &mt('Done').'" /> '.
1.30      albertel 1184: 		    '<input type="submit" name="stop" value="'.
                   1185: 		    &mt('Stop').'" /> '.
1.18      albertel 1186: 		    '</td></tr>';
1.22      albertel 1187: 		$result.='<tr><td colspan="4">';
                   1188: 		my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                   1189: 		my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
1.43      albertel 1190: 		foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
1.22      albertel 1191: 		    my $file=$file_url.$partial_file;
                   1192: 		    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1.48      albertel 1193: 		    $result.='<nobr><a href="'.$file.'" target="lonGRDs"><img src="'.
1.22      albertel 1194: 			&Apache::loncommon::icon($file).'" border=0"> '.$file.
1.48      albertel 1195: 			'</a></nobr> ';
1.22      albertel 1196: 		}
                   1197: 		$result.='</td></tr>';
1.18      albertel 1198: 		$last_link=$link;
                   1199: 	    }
1.22      albertel 1200: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1201: 	    my $optional_passed=0;
1.20      albertel 1202: 	    my $mandatory_failed=0;
                   1203: 	    my $ungraded=0;
                   1204: 	    my $review=0;
1.19      albertel 1205: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel 1206: 		my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                   1207: 		$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel 1208: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1209: 		if ($status eq 'pass') {
                   1210: 		    if (!$mandatory) { $optional_passed++; }
                   1211: 		} elsif ($status eq 'fail') {
                   1212: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1213: 		} elsif ($status eq 'review') {
                   1214: 		    $review++;
1.20      albertel 1215: 		} elsif ($status eq 'ungraded') {
                   1216: 		    $ungraded++;
1.21      albertel 1217: 		} else {
1.47      albertel 1218: 		    $ungraded++;
1.19      albertel 1219: 		}
                   1220: 	    }
1.20      albertel 1221: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1222: 		$mandatory_failed++;
                   1223: 	    }
1.21      albertel 1224: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1225: 	    if ($review) {
1.25      albertel 1226: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1227: 		    'review';
1.20      albertel 1228: 	    } elsif ($ungraded) {
1.25      albertel 1229: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1230: 		    'ungraded';
1.20      albertel 1231: 	    } elsif ($mandatory_failed) {
1.25      albertel 1232: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1233: 		    'fail';
1.20      albertel 1234: 	    } else {
1.25      albertel 1235: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1236: 		    'pass';
1.20      albertel 1237: 	    }
1.13      albertel 1238: 	}
1.18      albertel 1239: 	return $result;
1.1       albertel 1240:     }
                   1241: }
                   1242: 
                   1243: sub start_IntroParagraph {
                   1244:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1245:     my $result;
1.13      albertel 1246:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1247: 	if ($tagstack->[-2] eq 'Dimension') {
                   1248: 	    $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
                   1249: 	
                   1250: 	} elsif ($target eq 'webgrade') {
                   1251: 	    &Apache::lonxml::get_all_text('/introparagraph',$parser);
1.1       albertel 1252: 	}
1.47      albertel 1253: 	
1.1       albertel 1254:     }
                   1255:     return $result;
                   1256: }
                   1257: 
                   1258: sub end_IntroParagraph {
                   1259: }
                   1260: 
                   1261: sub start_Instance {
                   1262:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1263:     my $id=&get_id($parstack,$safeeval);
                   1264:     push(@{$dimension{'instances'}},$id);
                   1265:     push(@Apache::bridgetask::instance,$id);
                   1266:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1267:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1268: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.1       albertel 1269:     return '';
                   1270: }
                   1271: 
                   1272: sub end_Instance {
                   1273: }
                   1274: 
                   1275: sub start_InstanceText {
                   1276:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.47      albertel 1277:     my $instance_id=$Apache::bridgetask::instance[-1];
                   1278:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
1.13      albertel 1279:     if ($target eq 'web' || $target eq 'webgrade') {
1.47      albertel 1280: 	$dimension{$instance_id.'.text'}=$text;
1.1       albertel 1281:     }
                   1282:     return '';
                   1283: }
                   1284: 
                   1285: sub end_InstanceText {
                   1286:     return '';
                   1287: }
                   1288: 
                   1289: sub start_Criteria {
                   1290:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel 1291:     my $instance_id=$Apache::bridgetask::instance[-1];
1.47      albertel 1292:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
1.21      albertel 1293:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.19      albertel 1294: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1295: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1296: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1297: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1298: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1299:     }
                   1300:     return '';
                   1301: }
                   1302: 
1.47      albertel 1303: sub end_Criteria {
                   1304: }
                   1305: 
1.4       albertel 1306: sub proctor_validation_screen {
                   1307:     my ($slot) = @_;
                   1308:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1309:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 1310:     my $name=&Apache::loncommon::plainname($user,$domain);
                   1311:     
1.4       albertel 1312:     my $msg;
1.11      albertel 1313:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1314: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1315: 	    .'</font></p>';
                   1316:     }
1.47      albertel 1317:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 1318:     my $result= (<<ENDCHECKOUT);
                   1319: <h2>Proctor Validation</h2>
                   1320:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1321:     $msg
1.11      albertel 1322: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel 1323: <input type="hidden" name="validate" value="yes" />
                   1324: <input type="hidden" name="submitted" value="yes" />
                   1325: <table>
1.44      albertel 1326:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 1327:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 1328:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 1329: </table>
                   1330: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 1331: <table border="1">
                   1332:   <tr><td>
                   1333:     <table>
                   1334:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   1335:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 1336:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.44      albertel 1337:       <tr><td>Usename</td><td>$user\@$domain</td></tr>
                   1338:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   1339:     </table>
                   1340:   </tr></td>
                   1341: </table>
1.4       albertel 1342: </form>
                   1343: ENDCHECKOUT
                   1344:     return $result;
                   1345: }
                   1346: 
1.1       albertel 1347: 1;
                   1348: __END__

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