Annotation of loncom/homework/bridgetask.pm, revision 1.38

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.38    ! albertel    4: # $Id: bridgetask.pm,v 1.37 2005/06/04 08:17:06 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:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.32      albertel  150:     if ( 1) {
                    151: 	#need a permissions for limitng this to 'powerful users'
1.34      albertel  152: 
                    153: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
                    154: 	$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
                    155: 
                    156: 	$result.=' <input type="submit" name="reviewagrading" value="'.
                    157: 	    &mt("Select an entry from the grading queue").'" /> </p>'."\n";
                    158: 
                    159: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
                    160: 	$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
1.32      albertel  161: 	$result.=' <input type="submit" name="reviewasubmission" value="'.
1.34      albertel  162: 	    &mt("Select an entry from the review queue").'" /> </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();
        !           228: 	    $body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
        !           229: 		'<input type="hidden" name="symb" value="'.$symb.'" />'.
        !           230: 		'<input type="hidden" name="command" value="showslots" />'.
        !           231: 		'<input type="submit" name="requestattempt" value="'.
        !           232: 		&mt('Show Slot list').'" />'.
        !           233: 		'</form>';
        !           234: 
1.13      albertel  235: 	}
1.8       albertel  236:     }
1.21      albertel  237:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  238: 	$target eq 'tex') {
1.29      albertel  239: 	my ($version,$previous)=&get_version();
1.14      albertel  240: 	($status,$accessmsg,my $slot_name,$slot) = 
1.4       albertel  241: 	    &Apache::lonhomework::check_task_access('0');
1.9       albertel  242: 	push(@Apache::inputtags::status,$status);
1.14      albertel  243: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  244: 	my $expression='$external::datestatus="'.$status.'";';
1.23      albertel  245: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
1.1       albertel  246: 	&Apache::run::run($expression,$safeeval);
                    247: 	&Apache::lonxml::debug("Got $status");
1.25      albertel  248: 	$body_tag_start.=&add_previous_version_button($status);
1.29      albertel  249: 	if (!$previous && (
                    250: 			   ( $status eq 'CLOSED' ) ||
                    251: 			   ( $status eq 'BANNED') ||
                    252: 			   ( $status eq 'UNAVAILABLE') ||
                    253: 			   ( $status eq 'NOT_IN_A_SLOT') ||
                    254: 			   ( $status eq 'NEEDS_CHECKIN') ||
                    255: 			   ( $status eq 'WAITING_FOR_GRADE') ||
                    256: 			   ( $status eq 'INVALID_ACCESS') )) {
1.1       albertel  257: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
                    258: 	    if ( $target eq "web" ) {
1.4       albertel  259: 		$result.= $head_tag_start.'</head>'.$body_tag_start;
                    260: 		my $msg;
1.1       albertel  261: 		if ($status eq 'UNAVAILABLE') {
                    262: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  263: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    264: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38    ! albertel  265: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  266: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    267: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    268: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  269: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    270: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.1       albertel  271: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    272: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    273: 		}
                    274: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    275: 		    $msg.='The problem '.$accessmsg;
                    276: 		}
                    277: 		$result.=$msg.'<br />';
                    278: 	    } elsif ($target eq 'tex') {
                    279: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    280: 		if ($status eq 'UNAVAILABLE') {
                    281: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    282: 		} else {
                    283: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    284: 		}
1.22      albertel  285: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  286: 		if ($status eq 'NEEDS_CHECKIN') {
1.22      albertel  287: 		    if (&proctor_check_auth($slot_name,$slot)) {
1.4       albertel  288: 			#FIXME immeadiatly add this to the grading queue
                    289:                         #      with slot->{'endtime'} for when grading can 
                    290:                         #      begin on this resource
1.22      albertel  291: 			# FIXME I think the above is done by default,
                    292:                         #        need to check that
                    293:                         #        failure doesn't do this.
1.4       albertel  294:  		    }
                    295: 		}
1.1       albertel  296: 	    }
                    297: 	} elsif ($target eq 'web') {
                    298: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    299: 	    $result.="$head_tag_start<title>$name</title></head>
1.36      albertel  300:               $body_tag_start \n";
                    301: 	    
1.29      albertel  302: 	    my ($version,$previous)=&get_version();
1.25      albertel  303: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel  304: 		$result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
1.29      albertel  305: 		if (!$previous) {
                    306: 		    $result.=&add_request_another_attempt_button();
                    307: 		}
1.22      albertel  308: 	    }
1.25      albertel  309: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
1.22      albertel  310: 		$result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
                    311: 	    }
1.36      albertel  312: 	    $result.=$form_tag_start.
                    313: 		'<input type="hidden" name="submitted" value="yes" />';
                    314: 	    $result.=&preserve_grade_info();
                    315: 
1.1       albertel  316: 	}
1.21      albertel  317:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    318: 	      $target eq 'webgrade') {
1.32      albertel  319: 	my $webgrade='yes';
1.21      albertel  320: 	if ($target eq 'webgrade') {
1.32      albertel  321: 	    $result.=$head_tag_start.$body_tag_start;
1.31      albertel  322: 	    $result.='<br />Review'.&show_queue('reviewqueue');
1.33      albertel  323: 	    $result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  324: 	}
1.33      albertel  325: 	# FIXME Blast! still need to reorg this, need to reshow the
                    326:         #       queue being reviewed once done with the grade pass...
                    327:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    328:         #       perhaps do a search if there is a key that is mine and if
                    329:         #       there isn't reshow the queue....
                    330: 	my ($todo,$status_code)=&get_key_todo($target);
                    331: 
                    332: 	&Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
                    333: 	if ($todo) {
                    334: 	    &setup_env_for_other_user($todo,$safeeval);
                    335: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    336: 	    $result.="\n".'<table><tr><td>Found '.
                    337: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    338: 	    $form_tag_start.=
                    339: 		'<input type="hidden" name="gradingkey" value="'.
                    340: 		&Apache::lonnet::escape($todo).'" />';
                    341: 	    $Apache::bridgetask::queue_key=$todo;
                    342: 	    &Apache::structuretags::initialize_storage();
                    343: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    344: 	    if ($target eq 'webgrade') {
                    345: 		$result.='<br />After -'.&show_queue($env{'form.queue'});
                    346: 		$result.="\n".'<table width="100%" style="width:100%" border="1">';
                    347: 		if ($status_code eq 'selected') {
                    348: 		    $form_tag_start.=
                    349: 			'<input type="hidden" name="queuemode" value="selected" />';
                    350: 		}
                    351: 	    }
1.15      albertel  352: 	} else {
1.33      albertel  353: 	    if ($target eq 'webgrade') {
                    354: 		$result.="\n";
                    355: 		if      ($status_code eq 'stop') {
                    356: 		    $result.='<b>'.&mt("Stopped grading.").'</b>';
                    357: 		} elsif ($status_code eq 'lock_failed') {
                    358: 		    $result.='<b>'.&mt("Failed to lock the request record.").'</b>';
                    359: 		} elsif ($status_code eq 'unlock') {
                    360: 		    $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
                    361: 		    $result.=&show_queue($env{'form.queue'},1);
                    362: 		} elsif ($status_code eq 'show_list') {
                    363: 		    $result.=&show_queue($env{'form.queue'},1);
                    364: 		} else {
                    365: 		    $result.='<b>'.&mt("No user to be graded.").'</b>';
1.32      albertel  366: 		}
1.21      albertel  367: 	    }
1.33      albertel  368: 	    $webgrade='no';
                    369: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
1.32      albertel  370: 	}
                    371: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
                    372: 	    $result.=$form_tag_start;
                    373: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    374: 		$webgrade.'" />';
                    375: 	    $result.='<input type="hidden" name="queue" value="'.
                    376: 		$env{'form.queue'}.'" />';
1.15      albertel  377: 	}
1.1       albertel  378:     } else {
                    379: 	# page_start returned a starting result, delete it if we don't need it
                    380: 	$result = '';
                    381:     }
                    382:     return $result;
                    383: }
                    384: 
1.32      albertel  385: sub get_key_todo {
                    386:     my ($target)=@_;
                    387:     my $todo;
1.33      albertel  388: 
                    389:     if (defined($env{'form.reviewasubmission'})) {
                    390: 	&Apache::lonnet::logthis("review a submission....");
                    391: 	$env{'form.queue'}='reviewqueue';
                    392: 	return (undef,'show_list');
                    393:     }
                    394: 
                    395:     if (defined($env{'form.reviewagrading'})) {
                    396: 	&Apache::lonxml::debug("review a grading....");
                    397: 	$env{'form.queue'}='gradingqueue';
                    398: 	return (undef,'show_list');
                    399:     }
                    400: 
1.32      albertel  401:     my $queue=$env{'form.queue'};
1.33      albertel  402: 
1.32      albertel  403:     if (!defined($queue)) {
                    404: 	$env{'form.queue'}=$queue='gradingqueue';
                    405:     }
1.33      albertel  406: 
1.32      albertel  407:     my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.33      albertel  408: 
1.32      albertel  409:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  410: 	&& !defined($env{'form.gradingaction'}) 
                    411: 	&& $env{'form.queuemode'} eq 'selected') {
                    412: 	
                    413: 	my $who=&queue_key_locked($queue,$gradingkey);
                    414: 	my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    415: 	if ($who eq $me) {
                    416: 	    &Apache::lonxml::debug("Found a key was given to me");
                    417: 	    return ($gradingkey,'selected');
                    418: 	} else {
                    419: 	    return (undef,'show_list');
                    420: 	}
                    421: 
                    422:     }
                    423: 
                    424:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    425: 	if ($env{'form.gradingaction'} eq 'resume') {
                    426: 	    delete($env{'form.gradingaction'});
                    427: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  428: 	    return ($gradingkey);
1.33      albertel  429: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    430: 	    &Apache::lonxml::debug("Unlocking a key ".
                    431: 				     &check_queue_unlock($queue,$gradingkey,1));
                    432: 	    return (undef,'unlock');
                    433: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    434: 	    &Apache::lonxml::debug("Locking a key");
                    435: 	    if (&lock_key($queue,$gradingkey)) {
                    436: 		&Apache::lonxml::debug("Success $queue");
                    437: 		return ($gradingkey);
                    438: 	    }
                    439: 	    &Apache::lonxml::debug("Failed $queue");
                    440: 	    return (undef,'lock_failed');
1.32      albertel  441: 	}
                    442:     }
1.33      albertel  443: 
                    444:     if ($env{'form.queuemode'} ne 'selected') {
                    445: 	# don't get something new from the queue if they hit the stop button
                    446:     	if (!($env{'form.stop'} && $target eq 'webgrade') 
                    447: 	    && !$env{'form.gradingaction'}) {
                    448: 	    &Apache::lonxml::debug("Getting anew $queue");
                    449: 	    return (&get_from_queue($queue));
                    450: 	} else {
                    451: 	    return (undef,'stop');
                    452: 	}
1.32      albertel  453:     }
1.33      albertel  454:     return (undef,undef)
1.32      albertel  455: }
                    456: 
1.1       albertel  457: sub end_Task {
                    458:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    459:     my $result='';
                    460:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  461:     my ($version,$previous)=&get_version();
1.1       albertel  462:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  463: 	$target eq 'tex') {
1.1       albertel  464: 	if (
1.11      albertel  465: 	    (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.1       albertel  466: 	    ($target eq 'answer') || ($target eq 'tex')
                    467: 	   ) {
                    468: 	    if ($target eq 'web') {
1.29      albertel  469: 		if ($status eq 'CAN_ANSWER' && !$previous) {
1.15      albertel  470: 		    $result.="\n".'<table border="1">'.
1.28      albertel  471: 			&Apache::inputtags::file_selector("$version.0",
                    472: 							  "bridgetask","*",
1.9       albertel  473: 							  'portfolioonly').
                    474: 							  "</table>";
                    475: 		    $result.=&Apache::inputtags::gradestatus('0');
                    476: 		}
1.13      albertel  477: 	    } 
                    478: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  479: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    480: 	    }
                    481: 	}
1.29      albertel  482: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  483: 	    my $award='SUBMITTED';
1.28      albertel  484: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  485: 						    'portfiles',\$award);
1.14      albertel  486: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  487: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    488: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    489: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    490: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    491: 
                    492: 		$Apache::lonhomework::results{"resource.0.award"}=
                    493: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    494: 		    $award;
1.10      albertel  495: 	    }
1.4       albertel  496: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    497: 	    &Apache::structuretags::finalize_storage();
1.14      albertel  498: 	    if ($award eq 'SUBMITTED') {
1.31      albertel  499: 		&add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
1.14      albertel  500: 	    }
1.1       albertel  501: 	}
1.32      albertel  502: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
1.20      albertel  503: 	    my $optional_required=
                    504: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    505: 					   $safeeval);
                    506: 	    my $optional_passed=0;
                    507: 	    my $mandatory_failed=0;
                    508: 	    my $ungraded=0;
                    509: 	    my $review=0;   
1.21      albertel  510: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  511: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    512: 		my $status=
1.25      albertel  513: 		    $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
1.20      albertel  514: 		my $mandatory=
                    515: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    516: 		if ($status eq 'pass') {
                    517: 		    if (!$mandatory) { $optional_passed++; }
                    518: 		} elsif ($status eq 'fail') {
                    519: 		    if ($mandatory) { $mandatory_failed++; }
                    520: 		} elsif ($status eq 'ungraded') {
                    521: 		    $ungraded++;
                    522: 		} elsif ($status eq 'review') {
                    523: 		    $review++;
                    524: 		}	
                    525: 	    }
                    526: 	    if ($optional_passed < $optional_required) {
                    527: 		$mandatory_failed++;
                    528: 	    }
1.21      albertel  529: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
                    530: 	    $Apache::lonhomework::results{'resource.grader'}=
1.20      albertel  531: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    532: 	    if ($review) {
1.25      albertel  533: 		$Apache::lonhomework::results{"resource.$version.status"}='review';
1.33      albertel  534: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    535: 		    &check_queue_unlock($env{'form.queue'});
                    536: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                    537: 		} else {
                    538: 		    &move_between_queues('gradingqueue','reviewqueue');
                    539: 		}
1.20      albertel  540: 	    } elsif ($ungraded) {
1.25      albertel  541: 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
1.32      albertel  542: 		# FIXME if in review queue need to move back to grading queue
1.33      albertel  543: 		if ($env{'form.queue'} eq 'reviewqueue') {
                    544: 		    &Apache::lonxml::debug("moving back.");
                    545: 		    &move_between_queues('reviewqueue','gradingqueue');
                    546: 		} else {
                    547: 		    &check_queue_unlock($env{'form.queue'});
                    548: 		}
1.20      albertel  549: 	    } elsif ($mandatory_failed) {
1.25      albertel  550: 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
                    551: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    552: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    553: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.32      albertel  554: 		&remove_from_queue($env{'form.queue'});
1.20      albertel  555: 	    } else {
1.25      albertel  556: 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
                    557: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    558: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    559: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel  560: 		&remove_from_queue($env{'form.queue'});
1.20      albertel  561: 	    }
1.26      albertel  562: 	    $Apache::lonhomework::results{"resource.status"}=
                    563: 		$Apache::lonhomework::results{"resource.$version.status"};
1.28      albertel  564: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  565: 		$Apache::lonhomework::results{"resource.0.award"}=
                    566: 		    $Apache::lonhomework::results{"resource.$version.award"};
                    567: 		$Apache::lonhomework::results{"resource.0.awarded"}=
                    568: 		    $Apache::lonhomework::results{"resource.$version.awarded"};
                    569: 		$Apache::lonhomework::results{"resource.0.solved"}=
                    570: 		    $Apache::lonhomework::results{"resource.$version.solved"};
1.25      albertel  571: 	    }
1.21      albertel  572: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  573: 	}
1.15      albertel  574:     } elsif ($target eq 'webgrade') {
1.18      albertel  575: 	$result.="</table>\n<hr />";
1.20      albertel  576: 	#$result.='<input type="submit" name="next" value="'.
                    577: 	#    &mt('Save &amp; Next').'" /> ';
                    578: 	#$result.='<input type="submit" name="end" value="'.
                    579: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    580: 	#$result.='<input type="submit" name="throwaway" value="'.
                    581: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    582: 	#$result.='<input type="submit" name="save" value="'.
                    583: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  584: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  585:     } elsif ($target eq 'meta') {
1.2       albertel  586: 	$result.='<parameter part="0" package="Task"></parameter>'."\n";
1.1       albertel  587: 	#$result.=&Apache::response::meta_part_order();
                    588: 	#$result.=&Apache::response::meta_response_order();
                    589:     }
1.4       albertel  590:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  591:     return $result;
                    592: }
                    593: 
1.31      albertel  594: sub move_between_queues {
                    595:     my ($src_queue,$dest_queue)=@_;
                    596:     my $cur_data=&get_queue_data($src_queue);
                    597:     if (!$cur_data) { return 'not_exist'; }
                    598:     my $result=&add_to_queue($dest_queue,$cur_data->[0]);
                    599:     if ($result ne 'ok') {
                    600: 	return $result;
                    601:     }
                    602:     &check_queue_unlock($src_queue);
                    603:     return &remove_from_queue($src_queue);
1.21      albertel  604: }
                    605: 
                    606: sub check_queue_unlock {
1.32      albertel  607:     my ($queue,$key,$allow_not_me)=@_;
1.30      albertel  608:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel  609:     if (!defined($key)) {
                    610: 	$key="$symb\0queue\0$uname\@$udom";
                    611:     }
1.30      albertel  612:     my $cnum=$env{'course.'.$cid.'.num'};
                    613:     my $cdom=$env{'course.'.$cid.'.domain'};
                    614:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    615:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                    616:     if  ($who eq $me) {
1.32      albertel  617: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                    618:     } elsif ($allow_not_me) {
1.33      albertel  619: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel  620: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel  621:     }
1.32      albertel  622:     return 'not_owner';
1.21      albertel  623: }
                    624: 
                    625: sub remove_from_queue {
1.30      albertel  626:     my ($queue)=@_;
1.27      albertel  627:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    628:     my $cnum=$env{'course.'.$cid.'.num'};
                    629:     my $cdom=$env{'course.'.$cid.'.domain'};
                    630:     my $key="$symb\0queue\0$uname\@$udom";
                    631:     my @keys=($key,"$key\0locked");
1.31      albertel  632:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel  633: }
                    634: 
1.16      albertel  635: sub setup_env_for_other_user {
                    636:     my ($queue_key,$safeeval)=@_;
                    637:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel  638:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel  639:     $env{'form.grade_symb'}=$symb;
                    640:     $env{'form.grade_domain'}=$udom;
                    641:     $env{'form.grade_username'}=$uname;
                    642:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                    643:     &Apache::lonxml::initialize_rndseed($safeeval);
                    644: }
                    645: 
1.31      albertel  646: sub get_queue_data {
                    647:     my ($queue)=@_;
                    648:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    649:     my $cnum=$env{'course.'.$cid.'.num'};
                    650:     my $cdom=$env{'course.'.$cid.'.domain'};
                    651:     my $todo="$symb\0queue\0$uname\@$udom";
                    652:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                    653:     if ($key eq $todo && ref($value)) {
                    654: 	return $value;
                    655:     }
                    656:     return undef;
                    657: }
                    658: 
1.14      albertel  659: sub add_to_queue {
1.31      albertel  660:     my ($queue,$slot_name)=@_;
1.14      albertel  661:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    662:     my $cnum=$env{'course.'.$cid.'.num'};
                    663:     my $cdom=$env{'course.'.$cid.'.domain'};
                    664:     my %data;
1.31      albertel  665:     $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
                    666:     return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
1.14      albertel  667: }
                    668: 
                    669: sub show_queue {
1.32      albertel  670:     my ($queue,$with_selects)=@_;
1.14      albertel  671:     my $result;
                    672:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    673:     my $cnum=$env{'course.'.$cid.'.num'};
                    674:     my $cdom=$env{'course.'.$cid.'.domain'};
1.16      albertel  675:     my $regexp="^$symb\0";
1.30      albertel  676:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel  677:     my ($tmp)=%queue;
                    678:     if ($tmp=~/^error: 2 /) {
1.33      albertel  679: 	return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
1.31      albertel  680:     }
1.33      albertel  681:     $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
1.32      albertel  682:     if ($with_selects) { $result.="<th></th>"; }
                    683:     $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
1.14      albertel  684:     foreach my $key (sort(keys(%queue))) {
1.32      albertel  685: 	if ($key=~/locked$/ && !$with_selects) {
1.16      albertel  686: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    687: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  688: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel  689: 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
1.32      albertel  690: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.16      albertel  691: 	    my ($symb,undef) = split("\0",$key);
                    692: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  693: 	    $result.="<tr><td>$title</td><td></td>";
1.16      albertel  694: 	    $result.='<td>last queue modification time</td><td>'.
                    695: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel  696: 	} elsif ($key!~/(timestamp|locked)$/) {
1.16      albertel  697: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    698: 	    my $title=&Apache::lonnet::gettitle($symb);
1.32      albertel  699: 	    $result.="<tr>";
1.35      albertel  700: 	    my $slot=$queue{$key}->[0];
                    701: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.32      albertel  702: 	    if ($with_selects) {
                    703: 		my $ekey=&Apache::lonnet::escape($key);
                    704: 		my ($action,$description)=('select',&mt('Select'));
                    705: 		if (exists($queue{"$key\0locked"})) {
                    706: 		    my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    707: 		    if ($me eq $queue{"$key\0locked"}) {
                    708: 			($action,$description)=('resume',&mt('Resume'));
                    709: 		    } else {
                    710: 			($action,$description)=('unlock',&mt('Unlock'));
                    711: 		    }
                    712: 		}
1.35      albertel  713: 		if (time > $slot_data{'endtime'}) {
                    714: 		    $result.=(<<FORM);
1.32      albertel  715: <td>
                    716: <form method="POST">
                    717:  <input type="hidden" name="gradingkey" value="$ekey" />
                    718:  <input type="hidden" name="queue" value="$queue" />
                    719:  <input type="hidden" name="gradingaction" value="$action" />
                    720:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel  721:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel  722:  <input type="submit" name="submit" value="$description" />
                    723: </form>
                    724: </td>
                    725: FORM
1.35      albertel  726: 
                    727:                 } else {
                    728: 		    $result.='<td>'.&mt("In Progress").'</td>'
                    729: 		}
1.32      albertel  730: 	    }
                    731: 	    $result.="<td>$title</td><td>$uname</td>";
1.27      albertel  732: 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1.20      albertel  733: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                    734: 		"</td></tr>";
1.16      albertel  735: 	}
1.14      albertel  736:     }
1.15      albertel  737:     $result.="</table><hr />\n";
1.14      albertel  738:     return $result;
                    739: }
                    740: 
1.34      albertel  741: sub get_queue_counts {
                    742:     my ($queue)=@_;
                    743:     my $result;
                    744:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    745:     my $cnum=$env{'course.'.$cid.'.num'};
                    746:     my $cdom=$env{'course.'.$cid.'.domain'};
                    747:     my $regexp="^$symb\0";
                    748:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                    749:     my ($tmp)=%queue;
                    750:     if ($tmp=~/^error: 2 /) {
                    751: 	return (0,0,0);
                    752:     }
                    753:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
                    754:     foreach my $key (sort(keys(%queue))) {
                    755: 	if ($key=~/locked$/) {
                    756: 	    $locks++;
                    757: 	} elsif ($key=~/timestamp$/) {
                    758: 	    #ignore
                    759: 	} elsif ($key!~/(timestamp|locked)$/) {
                    760: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    761: 	    $entries++;
                    762: 	    my $slot=$queue{$key}->[0];
                    763: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                    764: 	    if (time > $slot_data{'endtime'}) {
                    765: 		$ready_to_grade++;
                    766: 	    }
                    767: 	}
                    768:     }
                    769:     return ($entries,$ready_to_grade,$locks);
                    770: }
                    771: 
1.14      albertel  772: sub decode_queue_key {
                    773:     my ($key)=@_;
                    774:     my ($symb,undef,$user) = split("\0",$key);
                    775:     my ($uname,$udom) = split('@',$user);
                    776:     return ($symb,$uname,$udom);
                    777: }
                    778: 
                    779: sub queue_key_locked {
1.30      albertel  780:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel  781:     if (!defined($cdom) || !defined($cnum)) {
                    782: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                    783: 	$cnum=$env{'course.'.$cid.'.num'};
                    784: 	$cdom=$env{'course.'.$cid.'.domain'};
                    785:     }
1.14      albertel  786:     my ($key_locked,$value)=
1.30      albertel  787: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel  788:     if ($key_locked eq "$key\0locked") {
                    789: 	return $value;
                    790:     }
                    791:     return undef;
                    792: }
                    793: 
                    794: sub pick_from_queue_data {
1.30      albertel  795:     my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
                    796:     foreach my $key (keys(%$queuedata)) {
1.14      albertel  797: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                    798: 	if ($check_section) {
                    799: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel  800: 	    if ($section eq $check_section) {
1.33      albertel  801: 		&Apache::lonxml::debug("my sec");
1.15      albertel  802: 		next;
                    803: 	    }
1.14      albertel  804: 	}
1.30      albertel  805: 	my $slot=$queuedata->{$key}[0];
1.14      albertel  806: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel  807: 	if ($slot_data{'endtime'} > time) { 
1.33      albertel  808: 	    &Apache::lonxml::debug("not time");
1.15      albertel  809: 	    next;
                    810: 	}
1.30      albertel  811: 	if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
1.33      albertel  812: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel  813: 	    next;
                    814: 	}
1.14      albertel  815: 	return $key;
                    816:     }
                    817:     return undef;
                    818: }
                    819: 
1.15      albertel  820: sub find_mid_grade {
1.30      albertel  821:     my ($queue,$symb,$cdom,$cnum)=@_;
1.16      albertel  822:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel  823:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    824:     if ($todo) {
1.30      albertel  825: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel  826: 	if ($who eq $me) { return $todo; }
                    827:     }
                    828:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel  829:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel  830:     foreach my $key (keys(%locks)) {
                    831: 	my $who=$locks{$key};
                    832: 	if ($who eq $me) {
                    833: 	    $todo=$key;
                    834: 	    $todo=~s/\0locked$//;
                    835: 	    return $todo;
                    836: 	}
                    837:     }
                    838:     return undef;
                    839: }
                    840: 
1.32      albertel  841: sub lock_key {
                    842:     my ($queue,$todo)=@_;
                    843:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    844:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    845:     my $cnum=$env{'course.'.$cid.'.num'};
                    846:     my $cdom=$env{'course.'.$cid.'.domain'};
                    847:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                    848: 					$cdom,$cnum);
1.33      albertel  849:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel  850:     if ($success eq 'ok') {
                    851: 	return 1;
                    852:     }
                    853:     return 0;
                    854: }
                    855: 
1.14      albertel  856: sub get_from_queue {
1.30      albertel  857:     my ($queue)=@_;
1.14      albertel  858:     my $result;
                    859:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    860:     my $cnum=$env{'course.'.$cid.'.num'};
                    861:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel  862:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel  863:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel  864:     if ($todo) { return $todo; }
1.14      albertel  865:     while (1) {
                    866: 	my $starttime=time;
1.30      albertel  867: 	&Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
1.14      albertel  868: 			     $cdom,$cnum);
1.33      albertel  869: 	&Apache::lonxml::debug("$starttime");
1.14      albertel  870: 	my $regexp="^$symb\0queue\0";
1.30      albertel  871: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel  872: 	#make a pass looking for a user _not_ in my section
1.14      albertel  873: 	if ($env{'request.course.sec'}) {
1.33      albertel  874: 	    &Apache::lonxml::debug("sce");
1.30      albertel  875: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                    876: 					\%queue,$cdom,$cnum);
1.33      albertel  877: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel  878: 	}
1.33      albertel  879: 	# no one _not_ in our section so look for any user that is
                    880: 	# ready for grading
1.14      albertel  881: 	if (!$todo) {
1.33      albertel  882: 	    &Apache::lonxml::debug("no sce");
1.31      albertel  883: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
                    884: 					\%queue,$cdom,$cnum);
1.33      albertel  885: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel  886: 	}
                    887: 	# no user to grade 
                    888: 	if (!$todo) { last; }
1.33      albertel  889: 	&Apache::lonxml::debug("got $todo");
1.14      albertel  890: 	# otherwise found someone so lets try to lock them
1.32      albertel  891: 	# unless someone else already picked them
                    892: 	if (!&lock_key($queue,$todo)) { next; }
1.14      albertel  893: 	my (undef,$endtime)=
1.30      albertel  894: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel  895: 				 $cdom,$cnum);
1.33      albertel  896: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel  897: 	# someone else already modified the queue, 
                    898: 	# perhaps our picked user wass already fully graded between
                    899: 	# when we picked him and when we locked his record? so lets
                    900: 	# double check.
                    901: 	if ($endtime != $starttime) {
                    902: 	    my ($key,$value)=
1.30      albertel  903: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel  904: 				     $cdom,$cnum);
1.33      albertel  905: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel  906: 	    if ($key eq $todo && ref($value)) {
                    907: 	    } else {
1.30      albertel  908: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel  909: 				     $cdom,$cnum);
1.33      albertel  910: 		&Apache::lonxml::debug("del");
1.14      albertel  911: 		next;
                    912: 	    }
                    913: 	}
1.33      albertel  914: 	&Apache::lonxml::debug("last $todo");
1.14      albertel  915: 	last;
                    916:     }
                    917:     return $todo;
                    918: }
                    919: 
1.1       albertel  920: sub start_ClosingParagraph {
                    921:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    922:     my $result;
                    923:     if ($target eq 'web') {
1.13      albertel  924:     } elsif ($target eq 'webgrade') {
                    925: 	&Apache::lonxml::startredirection();
1.1       albertel  926:     }
                    927:     return $result;
                    928: }
                    929: 
                    930: sub end_ClosingParagraph {
                    931:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    932:     my $result;
                    933:     if ($target eq 'web') {
1.13      albertel  934:     } elsif ($target eq 'webgrade') {
                    935: 	&Apache::lonxml::endredirection();
1.1       albertel  936:     }
                    937:     return $result;
                    938: }
                    939: 
1.19      albertel  940: sub get_id {
                    941:     my ($parstack,$safeeval)=@_;
                    942:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                    943:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                    944:     return $id;
                    945: }
                    946: 
1.1       albertel  947: my %dimension;
                    948: sub start_Dimension {
                    949:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    950:     undef(%dimension);
1.19      albertel  951:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel  952:     $Apache::bridgetask::dimension=$dim_id;
                    953:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                    954:     undef(@Apache::bridgetask::instance);
1.20      albertel  955:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                    956: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel  957:     return '';
                    958: }
                    959: 
1.13      albertel  960: sub get_instance {
                    961:     &Apache::response::pushrandomnumber();
                    962:     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
1.29      albertel  963:     my $num=@order;
                    964:     my $version=&get_version();
                    965:     my $which=($version-1)%$num;
                    966:     return $order[$which];
1.13      albertel  967: }
                    968: 
1.18      albertel  969: {
                    970:     my $last_link;
                    971:     sub end_Dimension {
                    972: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    973: 	my $result;
1.25      albertel  974: 	my $dim=&get_id($parstack,$safeeval);
1.19      albertel  975: 	my $instance=&get_instance();
1.25      albertel  976: 	my $version=&get_version();
1.18      albertel  977: 	if ($target eq 'web') {
                    978: 	    $result=$dimension{'intro'}.$dimension{$instance.'.text'};
1.26      albertel  979: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
                    980: 		$Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel  981: 		foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel  982: 		    my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
                    983: 		    my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
1.22      albertel  984: 		    $result.='<table border="1"><tr><td>';
                    985: 		    if ($status eq 'fail') {
                    986: 			$result.='<font color="red">'.&mt('Did not pass').'</font>';
                    987: 		    } elsif ($status eq 'pass') {
                    988: 			$result.='<font color="green">'.&mt('Passed').'</font>';
                    989: 		    } else {
                    990: 			&Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
                    991: 		    }
                    992: 		    $result.='</td></tr><tr><td>';
1.25      albertel  993: 		    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
                    994: 			$result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
1.22      albertel  995: 		    }
                    996: 		    $result.=$dimension{$instance.'.criteria.'.$id}.
                    997: 			'</td></tr></table>';
                    998: 		}
                    999: 	    }
1.18      albertel 1000: 	} elsif ($target eq 'webgrade') {
                   1001: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                   1002: 		my $link='criteria_'.$instance.'_'.$id;
1.25      albertel 1003: 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1.19      albertel 1004: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel 1005: 		    '<a name="'.$link.'" />'.
                   1006: 		    '<a name="next_'.$last_link.'" />'.
                   1007: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
                   1008: 		    #$dimension{$instance.'.criteria.'.$id}.
                   1009: 		    '</td>'.
1.19      albertel 1010: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.25      albertel 1011: 		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
1.18      albertel 1012: 		    '</td>'.
                   1013: 		    '<td>'.
1.30      albertel 1014: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>'.&mt('Ungraded').'</label></nobr><br />'.
                   1015: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
                   1016: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
                   1017: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1.18      albertel 1018: 		    '</td>'.
                   1019: 		    '<td>'.
                   1020: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel 1021: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
                   1022: 		    '<input type="submit" name="next" value="'.
                   1023: 		    &mt('Done').'" /> '.
1.30      albertel 1024: 		    '<input type="submit" name="stop" value="'.
                   1025: 		    &mt('Stop').'" /> '.
1.18      albertel 1026: 		    '</td></tr>';
1.22      albertel 1027: 		$result.='<tr><td colspan="4">';
                   1028: 		my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                   1029: 		my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
1.23      albertel 1030: 		foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
1.22      albertel 1031: 		    my $file=$file_url.$partial_file;
                   1032: 		    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
                   1033: 		    $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
                   1034: 			&Apache::loncommon::icon($file).'" border=0"> '.$file.
                   1035: 			'</a>';
                   1036: 		}
                   1037: 		$result.='</td></tr>';
1.18      albertel 1038: 		$last_link=$link;
                   1039: 	    }
1.22      albertel 1040: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 1041: 	    my $optional_passed=0;
1.20      albertel 1042: 	    my $mandatory_failed=0;
                   1043: 	    my $ungraded=0;
                   1044: 	    my $review=0;
1.19      albertel 1045: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel 1046: 		my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                   1047: 		$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel 1048: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                   1049: 		if ($status eq 'pass') {
                   1050: 		    if (!$mandatory) { $optional_passed++; }
                   1051: 		} elsif ($status eq 'fail') {
                   1052: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 1053: 		} elsif ($status eq 'review') {
                   1054: 		    $review++;
1.20      albertel 1055: 		} elsif ($status eq 'ungraded') {
                   1056: 		    $ungraded++;
1.21      albertel 1057: 		} else {
1.22      albertel 1058: 		    &Apache::lonxml::error("got weird status --$status--");
1.19      albertel 1059: 		}
                   1060: 	    }
1.20      albertel 1061: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                   1062: 		$mandatory_failed++;
                   1063: 	    }
1.21      albertel 1064: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 1065: 	    if ($review) {
1.25      albertel 1066: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1067: 		    'review';
1.20      albertel 1068: 	    } elsif ($ungraded) {
1.25      albertel 1069: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1070: 		    'ungraded';
1.20      albertel 1071: 	    } elsif ($mandatory_failed) {
1.25      albertel 1072: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1073: 		    'fail';
1.20      albertel 1074: 	    } else {
1.25      albertel 1075: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel 1076: 		    'pass';
1.20      albertel 1077: 	    }
1.13      albertel 1078: 	}
1.18      albertel 1079: 	return $result;
1.1       albertel 1080:     }
                   1081: }
                   1082: 
                   1083: sub start_IntroParagraph {
                   1084:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1085:     my $result;
1.13      albertel 1086:     if ($target eq 'web' || $target eq 'webgrade') {
                   1087: 	if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1       albertel 1088: 	    &Apache::lonxml::startredirection();
                   1089: 	}
                   1090:     }
                   1091:     return $result;
                   1092: }
                   1093: 
                   1094: sub end_IntroParagraph {
                   1095:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1096:     my $result;
1.13      albertel 1097:     if ($target eq 'web' || $target eq 'webgrade') {
                   1098: 	if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1       albertel 1099: 	    $dimension{'intro'}=&Apache::lonxml::endredirection();
                   1100: 	}
                   1101:     }
                   1102:     return $result;
                   1103: }
                   1104: 
                   1105: sub start_Instance {
                   1106:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel 1107:     my $id=&get_id($parstack,$safeeval);
                   1108:     push(@{$dimension{'instances'}},$id);
                   1109:     push(@Apache::bridgetask::instance,$id);
                   1110:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel 1111:     $dimension{$id.'.optionalrequired'}=
1.19      albertel 1112: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.1       albertel 1113:     return '';
                   1114: }
                   1115: 
                   1116: sub end_Instance {
                   1117:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1118:     return '';
                   1119: }
                   1120: 
                   1121: sub start_InstanceText {
                   1122:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.13      albertel 1123:     if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel 1124: 	&Apache::lonxml::startredirection();
                   1125:     }
                   1126:     return '';
                   1127: }
                   1128: 
                   1129: sub end_InstanceText {
                   1130:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel 1131:     my $instance_id=$Apache::bridgetask::instance[-1];
1.13      albertel 1132:     if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel 1133: 	$dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
                   1134:     }
                   1135:     return '';
                   1136: }
                   1137: 
                   1138: sub start_Criteria {
                   1139:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.21      albertel 1140:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.1       albertel 1141: 	&Apache::lonxml::startredirection();
                   1142:     }
                   1143:     return '';
                   1144: }
                   1145: 
                   1146: sub end_Criteria {
                   1147:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel 1148:     my $instance_id=$Apache::bridgetask::instance[-1];
1.21      albertel 1149:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.1       albertel 1150: 	my $criteria=&Apache::lonxml::endredirection();
1.19      albertel 1151: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel 1152: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel 1153: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                   1154: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel 1155: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                   1156:     }
                   1157:     return '';
                   1158: }
                   1159: 
1.4       albertel 1160: sub proctor_validation_screen {
                   1161:     my ($slot) = @_;
                   1162:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 1163:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.11      albertel 1164:     $user=$env{'form.proctorname'};
                   1165:     if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
1.4       albertel 1166:     my $msg;
1.11      albertel 1167:     if ($env{'form.proctorpassword'}) {
1.4       albertel 1168: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   1169: 	    .'</font></p>';
                   1170:     }
                   1171:     my $result= (<<ENDCHECKOUT);
                   1172: <h2>Proctor Validation</h2>
                   1173:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   1174:     $msg
1.11      albertel 1175: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel 1176: <input type="hidden" name="validate" value="yes" />
                   1177: <input type="hidden" name="submitted" value="yes" />
                   1178: <table>
                   1179:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
                   1180:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.6       albertel 1181:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
1.4       albertel 1182: </table>
                   1183: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
                   1184: Student who should be logged in is:<br />
1.5       albertel 1185: <img src="$url" /><br />
1.4       albertel 1186: </form>
                   1187: ENDCHECKOUT
                   1188:     return $result;
                   1189: }
                   1190: 
1.1       albertel 1191: 1;
                   1192: __END__

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