Annotation of loncom/homework/bridgetask.pm, revision 1.184

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.184   ! albertel    4: # $Id: bridgetask.pm,v 1.183 2006/10/11 18:54:33 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 );
1.158     www        41: use lib '/home/httpd/lib/perl/';
                     42: use LONCAPA;
                     43:  
1.9       albertel   44: 
1.1       albertel   45: BEGIN {
1.162     albertel   46:     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Question','QuestionText','Setup','Instance','InstanceText','Criteria','ClosingParagraph'));
1.1       albertel   47: }
                     48: 
1.169     albertel   49: my %dimension;
1.9       albertel   50: sub initialize_bridgetask {
                     51:     # id of current Dimension, 0 means that no dimension is current 
                     52:     # (inside <Task> only)
1.178     albertel   53:     @Apache::bridgetask::dimension=();
1.9       albertel   54:     # list of all Dimension ids seen
1.168     albertel   55:     %Apache::bridgetask::top_dimensionlist=();
1.9       albertel   56:     # list of all current Instance ids
1.168     albertel   57:     %Apache::bridgetask::instance=();
1.9       albertel   58:     # list of all Instance ids seen in this problem
                     59:     @Apache::bridgetask::instancelist=();
1.15      albertel   60:     # key of queud user data that we are currently grading
                     61:     $Apache::bridgetask::queue_key='';
1.169     albertel   62:     undef(%dimension);
1.9       albertel   63: }
                     64: 
1.4       albertel   65: sub proctor_check_auth {
1.81      albertel   66:     my ($slot_name,$slot,$type)=@_;
1.11      albertel   67:     my $user=$env{'form.proctorname'};
                     68:     my $domain=$env{'form.proctordomain'};
1.4       albertel   69:     
                     70:     my @allowed=split(",",$slot->{'proctor'});
                     71:     foreach my $possible (@allowed) {
1.138     albertel   72: 	my ($puser,$pdom)=(split(':',$possible));
1.4       albertel   73: 	if ($puser eq $user && $pdom eq $domain) {
1.72      albertel   74: 	    my $authenticated=0;
                     75: 	    if ( $slot->{'secret'} =~ /\S/ &&
                     76: 		 $env{'form.proctorpassword'} eq $slot->{'secret'} ) {
                     77: 		$authenticated=1;
                     78: 	    } else {
                     79: 		
                     80: 		my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
                     81: 		if ($authhost ne 'no_host') {
                     82: 		    $authenticated=1;
                     83: 		}
                     84: 	    }
1.150     albertel   85: 	    if ($authenticated) {
1.176     albertel   86: 		&check_in($type,$user,$domain,$slot_name);
1.4       albertel   87: 		return 1;
                     88: 	    }
                     89: 	}
                     90:     }
                     91:     return 0;
                     92: }
                     93: 
1.174     albertel   94: sub check_in {
                     95:     my ($type,$user,$domain,$slot_name) = @_;
                     96:     my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
                     97:     if ( $useslots eq 'map_map') {
                     98: 	&check_in_sequence($user,$domain,$slot_name);
                     99:     } else {
                    100: 	&create_new_version($type,$user,$domain,$slot_name);
                    101:     }
                    102:     return 1;
                    103: }
                    104: 
                    105: sub check_in_sequence {
                    106:     my ($user,$domain,$slot_name) = @_;
                    107:     my $navmap = Apache::lonnavmaps::navmap->new();
                    108:     my ($symb) = &Apache::lonxml::whichuser();
                    109:     my ($map)  = &Apache::lonnet::decode_symb($symb);
1.175     albertel  110:     my @resources = 
                    111: 	$navmap->retrieveResources($map, sub { $_[0]->is_problem() },0,0);
1.174     albertel  112:     my %old_history = %Apache::lonhomework::history;
                    113:     my %old_results = %Apache::lonhomework::results;
                    114: 
                    115:     foreach my $res (@resources) {
                    116: 	&Apache::lonxml::debug("doing ".$res->src);
                    117: 	&Apache::structuretags::initialize_storage($res->symb);
                    118: 	my $type = ($res->is_task()) ? 'Task' : 'problem';
                    119: 	&create_new_version($type,$user,$domain,$slot_name);
                    120: 	&Apache::structuretags::finalize_storage($res->symb);
                    121:     }
                    122:     
                    123:     %Apache::lonhomework::history = %old_history;
                    124:     %Apache::lonhomework::results = %old_results;
                    125: }
                    126: 
1.150     albertel  127: sub create_new_version {
                    128:     my ($type,$user,$domain,$slot_name) = @_;
1.174     albertel  129:     
                    130:     my $id = '0';
1.150     albertel  131:     if ($type eq 'Task') {
                    132: 	# increment version
                    133: 	my $version=
                    134: 	    $Apache::lonhomework::history{'resource.0.version'};
                    135: 	$version++;
1.152     albertel  136: 	&Apache::lonxml::debug("Making version $version");
1.150     albertel  137: 	#clean out all current results
                    138: 	foreach my $key (keys(%Apache::lonhomework::history)) {
                    139: 	    if ($key=~/^resource\.0\./) {
                    140: 		$Apache::lonhomework::results{$key}='';
                    141: 	    }
                    142: 	}
                    143: 	
                    144: 	#setup new version and who did it
1.174     albertel  145:        	$Apache::lonhomework::results{'resource.0.version'}=$version;
                    146: 	$id = "$version.0";
1.178     albertel  147: 	if (!defined($user) || !defined($domain)) {
1.174     albertel  148: 	    $user = $env{'user.name'};
                    149: 	    $domain = $env{'user.domain'};
1.150     albertel  150: 	}
1.174     albertel  151: 	
1.150     albertel  152:     } elsif ($type eq 'problem') {
                    153: 	&Apache::lonxml::debug("authed $slot_name");
1.174     albertel  154:     }
1.181     albertel  155:     if (!defined($user) || !defined($domain)) {
                    156: 	$user = $env{'user.name'};
                    157: 	$domain = $env{'user.domain'};
                    158:     }
                    159: 
                    160:     $Apache::lonhomework::results{"resource.$id.checkedin"}=
                    161: 	$user.':'.$domain;
1.174     albertel  162: 
                    163:     if (defined($slot_name)) {
                    164: 	$Apache::lonhomework::results{"resource.$id.checkedin.slot"}=
                    165: 	    $slot_name;
1.150     albertel  166:     }
                    167: }
                    168: 
1.25      albertel  169: sub get_version {
1.29      albertel  170:     my ($version,$previous);
1.25      albertel  171:     if ($env{'form.previousversion'} && 
1.36      albertel  172: 	$env{'form.previousversion'} ne 'current' &&
1.89      albertel  173: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.0.status'})) {
1.29      albertel  174: 	$version=$env{'form.previousversion'};
                    175: 	$previous=1;
                    176:     } else {
1.150     albertel  177: 	if (defined($Apache::lonhomework::results{'resource.0.version'})) {
                    178: 	    $version=$Apache::lonhomework::results{'resource.0.version'};
                    179: 	} elsif (defined($Apache::lonhomework::history{'resource.0.version'})) {
                    180: 	    $version=$Apache::lonhomework::history{'resource.0.version'};
                    181: 	}
1.29      albertel  182: 	$previous=0;
                    183:     }
                    184:     if (wantarray) {
                    185: 	return ($version,$previous);
1.25      albertel  186:     }
1.29      albertel  187:     return $version;
1.25      albertel  188: }
                    189: 
1.8       albertel  190: sub add_previous_version_button {
1.25      albertel  191:     my ($status)=@_;
1.8       albertel  192:     my $result;
1.89      albertel  193:     if ($Apache::lonhomework::history{'resource.0.version'} eq '') {
1.25      albertel  194: 	return '';
                    195:     }
1.89      albertel  196:     if ($Apache::lonhomework::history{'resource.0.version'} < 2 &&
1.29      albertel  197: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  198: 	return '';
                    199:     }
1.29      albertel  200:     my $version=&get_version();
                    201:     if ($env{'form.previousversion'} ne '' &&
                    202: 	$env{'form.previousversion'} eq $version) {
                    203: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
                    204: 	    "</h3>\n";
                    205:     }
                    206:     my @to_show;
1.89      albertel  207:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.0.version'}) {
                    208: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.0.status'})) {
1.29      albertel  209: 	    push(@to_show,$test_version);
                    210: 	}
                    211:     }
                    212:     my $list='<option>'.
                    213: 	join("</option>\n<option>",@to_show).
                    214: 	     "</option>\n";
1.36      albertel  215:     $list.='<option value="current">'.&mt('Current').'</option>';
1.115     albertel  216:     $result.='<form name="getprevious" method="post" action="';
1.29      albertel  217:     my $uri=$env{'request.uri'};
                    218:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    219:     $result.=$uri.'">'.
                    220: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
                    221: <option>'.&mt('Pick one').'</option>
                    222: '.$list.'
                    223: </select>')."</form>";
1.8       albertel  224:     return $result;
                    225: }
                    226: 
1.13      albertel  227: sub add_grading_button {
1.59      albertel  228:     my (undef,$cid)=&Apache::lonxml::whichuser();
                    229:     my $cnum=$env{'course.'.$cid.'.num'};
                    230:     my $cdom=$env{'course.'.$cid.'.domain'};
1.144     albertel  231:     my %sections = &Apache::loncommon::get_sections($cdom,$cnum);
                    232: 
1.59      albertel  233:     my $size=5;
                    234:     if (scalar(keys(%sections)) < 3) {
                    235: 	$size=scalar(keys(%sections))+2;
                    236:     }
1.122     albertel  237:     my $sec_select = '<select multiple="multiple" name="chosensections" size="'.$size.'">'."\n";
1.59      albertel  238:     $sec_select .= "<option value='all' selected='selected'>all</option>\n";
                    239:     foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
1.122     albertel  240: 	$sec_select .= "<option value=\"$sec\">$sec</option>\n";
1.59      albertel  241:     }
                    242:     $sec_select .= "<option value='none'>none</option></select>\n";
                    243:     
1.29      albertel  244:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  245: 	&mt("Get a submission to grade").'" />';
                    246:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
1.40      albertel  247:     if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.34      albertel  248: 	my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
1.106     albertel  249: 	$result.='<table><tr>';
                    250: 	$result.='<td rowspan="4">Specify a section: </td><td rowspan="4">'.$sec_select.'</td>';
                    251: 	$result.='<td>'.' <input type="submit" name="reviewagrading" value="'.
                    252: 	    &mt("Select an entry from the grading queue:").'" /> ';
1.34      albertel  253: 
1.107     albertel  254: 	$result.= &mt("[_1] entries, [_2] ready, [_3] being graded",$entries,$ready,$locks).' </td></tr>'."\n";
1.34      albertel  255: 
                    256: 	($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
1.106     albertel  257: 	$result.='<tr><td>'.
                    258: 	    ' <input type="submit" name="reviewasubmission" value="'.
                    259: 	    &mt("Select an entry from the review queue:").'" /> ';
                    260: 	$result.=&mt("[_1] entries, [_2] ready, [_3] being graded",
                    261: 		     $entries,$ready,$locks).'</td></tr>'."\n";
                    262: 	$result.='<tr><td> <input type="submit" name="regradeasubmission" value="'.
                    263: 	    &mt("List of user's grade status").'" /> </td></tr></table>'."\n";
1.105     albertel  264: 	$result.='<p> <input type="submit" name="regradeaspecificsubmission" value="'.
1.106     albertel  265: 	    &mt("Regrade specific user:").'" />'."\n";
1.105     albertel  266: 	$result.='<input type="text" size="12" name="gradinguser" />';
                    267: 	$result.=&Apache::loncommon::select_dom_form($env{'user.domain'},
                    268: 						     'gradingdomain');
                    269: 	$result.=' '.
                    270: 	    &Apache::loncommon::selectstudent_link('gradesubmission',
                    271: 						   'gradinguser',
                    272: 						   'gradingdomain');
                    273: 	$result.=&Apache::loncommon::studentbrowser_javascript();
1.123     albertel  274: 	$result.= '</p>';
1.144     albertel  275:     }
1.13      albertel  276:     return $result;
                    277: }
                    278: 
1.22      albertel  279: sub add_request_another_attempt_button {
1.38      albertel  280:     my ($text)=@_;
                    281:     if (!$text) { $text="Request another attempt"; }
1.25      albertel  282:     my $result;
1.36      albertel  283:     my $symb=&Apache::lonnet::symbread();
1.149     albertel  284:     # not a slot access based resource
                    285:     my $useslots = &Apache::lonnet::EXT("resource.0.useslots",$symb);
                    286:     if ($useslots =~ /^\s*no\s*$/i) {
                    287: 	return '';
                    288:     }
                    289: 
1.37      albertel  290:     my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
1.38      albertel  291:     my $action='get_reservation';
1.37      albertel  292:     if ($slot_name) {
1.38      albertel  293: 	$text="Change reservation.";
                    294: 	$action='change_reservation';
1.37      albertel  295: 	my $description=&Apache::slotrequest::get_description($slot_name,
                    296: 							      $slot);
                    297: 	$result.=(<<STUFF);
                    298: <p> Will be next available: $description </p>
                    299: STUFF
                    300:     }
1.38      albertel  301:     
                    302:     if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
1.158     www       303:     $symb=&escape($symb);
1.115     albertel  304:     $result.='<form method="post" action="/adm/slotrequest">'.
1.38      albertel  305: 	'<input type="hidden" name="symb" value="'.$symb.'" />'.
                    306: 	'<input type="hidden" name="command" value="'.$action.'" />'.
                    307: 	'<input type="submit" name="requestattempt" value="'.
                    308: 	&mt($text).'" />'.
                    309: 	'</form>';
1.25      albertel  310:     return $result;
1.22      albertel  311: }
                    312: 
1.30      albertel  313: sub preserve_grade_info {
                    314:     my $result;
                    315:     # if we are viewing someone else preserve that info
                    316:     if (defined $env{'form.grade_symb'}) {
                    317: 	foreach my $field ('symb','courseid','domain','username') {
                    318: 	    $result .= '<input type="hidden" name="grade_'.$field.
                    319: 		'" value="'.$env{"form.grade_$field"}.'" />'."\n";
                    320: 	}
                    321:     }
                    322:     return $result;
                    323: }
                    324: 
1.53      albertel  325: sub style {
1.125     albertel  326:     my ($target) = @_;
                    327:     if ($target eq 'web'
                    328: 	|| $target eq 'webgrade') {
                    329: 	return (<<STYLE);
1.126     albertel  330: <link rel="stylesheet" type="text/css" href="/res/adm/includes/task.css" />
1.53      albertel  331: STYLE
1.125     albertel  332:     }
                    333:     return;
1.53      albertel  334: }
                    335: 
1.54      albertel  336: sub show_task {
                    337:     my ($status,$previous)=@_;
                    338:     if (!$previous && (
                    339: 		       ( $status eq 'CLOSED' ) ||
                    340: 		       ( $status eq 'BANNED') ||
                    341: 		       ( $status eq 'UNAVAILABLE') ||
                    342: 		       ( $status eq 'NOT_IN_A_SLOT') ||
                    343: 		       ( $status eq 'NEEDS_CHECKIN') ||
                    344: 		       ( $status eq 'WAITING_FOR_GRADE') ||
1.150     albertel  345: 		       ( $status eq 'INVALID_ACCESS') ||
                    346: 		       ( &get_version() eq ''))) {
1.54      albertel  347: 	return 0;
                    348:     }
1.64      albertel  349:     if ($env{'form.donescreen'}) { return 0; }
1.54      albertel  350:     return 1;
                    351: }
                    352: 
1.173     albertel  353: my @delay;
                    354: sub nest { 
                    355:     if (@delay) {
                    356: 	return $delay[-1];
                    357:     } else {
                    358: 	return;
                    359:     }
                    360: }
                    361: 
                    362: sub nested_parse {
                    363:     my ($str,$env,$args) = @_;
                    364:     my @old_env = @Apache::scripttag::parser_env;
                    365:     @Apache::scripttag::parser_env = @$env;
                    366:     if (exists($args->{'set_dim_id'})) {
                    367: 	&enable_dimension_parsing($args->{'set_dim_id'});
                    368:     }
                    369:     push(@delay,(($args->{'delayed_dim_results'})? 1 : 0));
                    370:     my $result = &Apache::scripttag::xmlparse($$str);
                    371:     pop(@delay);
                    372:     if (exists($args->{'set_dim_id'})) {
                    373: 	&disable_dimension_parsing();
                    374:     }
                    375:     @Apache::scripttag::parser_env = @old_env;
                    376:     if ($args->{'delayed_dim_results'}) {
                    377: 	my $dim = &get_dim_id();
1.180     albertel  378: 	&Apache::lonxml::debug(" tossing out $result ");
                    379: 	&Apache::lonxml::debug(" usining out $dim 's  ". $dimension{$dim}{'result'});
1.173     albertel  380: 	return $dimension{$dim}{'result'};
                    381:     }
                    382:     return $result;
                    383: }
                    384: 
1.54      albertel  385: sub internal_location {
                    386:     my ($id)=@_;
                    387:     return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
                    388: }
                    389: 
1.60      albertel  390: sub submission_time_stamp {
                    391:     my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
                    392:     my $submissiontime;
1.89      albertel  393:     my $version=$Apache::lonhomework::history{'resource.0.version'};
1.60      albertel  394:     for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
1.183     albertel  395: 	if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})
                    396: 	    && defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.tries'})) {
1.60      albertel  397: 	    $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
1.182     albertel  398: 	    last;
1.60      albertel  399: 	}
                    400:     }
                    401:     my $result;
                    402:     if ($submissiontime) {
1.89      albertel  403: 	my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.0.checkedin.slot'};
1.60      albertel  404: 	my %slot=&Apache::lonnet::get_slot($slot_name);
                    405: 	my $diff = $slot{'endtime'} - $submissiontime;
1.71      albertel  406: 	my ($color,$when)=('#FF6666','after');
                    407: 	if ($diff > 0) { ($color,$when)=('#336600','before'); }
1.60      albertel  408: 	my $info;
1.182     albertel  409: 	$diff = abs($diff);
1.60      albertel  410: 	if ($diff%60) { $info=($diff%60).' seconds'; }
                    411: 	$diff=int($diff/60);
                    412: 	if ($diff%60) { $info=($diff%60).' minutes '.$info; }
                    413: 	$diff=int($diff/60);
                    414: 	if ($diff) {    $info=$diff.' hours '.$info; }
                    415: 	$result='<p><font color="'.$color.'">'.
1.182     albertel  416: 	    &mt('Student submitted [_1] [_2] the deadline. '.
                    417: 		'(Submission was at [_3], end of period was [_4].)',
                    418: 		$info,$when,
                    419: 		&Apache::lonlocal::locallocaltime($submissiontime),
                    420: 		&Apache::lonlocal::locallocaltime($slot{'endtime'})).
1.60      albertel  421: 		'</font></p>';
                    422:     }
                    423:     return $result;
                    424: }
                    425: 
1.119     albertel  426: sub file_list {
                    427:     my ($files,$uname,$udom) = @_;
                    428:     if (!defined($uname) || !defined($udom)) {
                    429: 	(undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                    430:     }
1.70      albertel  431:     my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
1.119     albertel  432: 
1.120     albertel  433:     my $file_list="<ul class=\"LC_GRADING_handininfo\">\n";
1.119     albertel  434:     foreach my $partial_file (split(',',$files)) {
1.70      albertel  435: 	my $file=$file_url.$partial_file;
                    436: 	$file=~s|/+|/|g;
                    437: 	&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1.161     albertel  438: 	$file_list.='<li><span style="white-space: nowrap;"><a href="'.$file.'?rawmode=1" target="lonGRDs"><img src="'.
                    439: 	    &Apache::loncommon::icon($file).'" alt="file icon" border="0" /> '.$file.
                    440: 	    '</a></span></li>'."\n";
1.70      albertel  441:     }
                    442:     $file_list.="</ul>\n";
1.119     albertel  443:     return $file_list;
                    444: }
                    445: 
1.163     albertel  446: sub grade_mode {
                    447:     if ($env{'form.regrade'} || $env{'form.regradeaspecificsubmission'}) {
                    448: 	return 'regrade';
                    449:     }
                    450:     return 'queue_grade';
                    451: }
                    452: 
1.119     albertel  453: sub webgrade_standard_info {
                    454:     my ($version)=&get_version();
                    455: 
                    456:     my $file_list = &file_list($Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"});
1.70      albertel  457: 
1.163     albertel  458:     my %lt=('done'   => 'Next Item',
                    459: 	    'stop'   => 'Quit Grading',
                    460: 	    'fail'   => 'Fail Rest',
                    461: 	    'cancel' => 'Cancel',
                    462: 	    );
1.170     albertel  463:     %lt=&Apache::lonlocal::texthash(%lt);
1.163     albertel  464: 
1.70      albertel  465:     my $result=<<INFO;
1.120     albertel  466:   <div class="LC_GRADING_maincontrols">
1.163     albertel  467: INFO
                    468: 
                    469:     if (&grade_mode() eq 'regrade') {
                    470: 	$result.=<<INFO;
                    471:     <input type="submit" name="cancel" value="$lt{'cancel'}" />
                    472: INFO
                    473:     }
                    474: 
                    475:     $result.=<<INFO;
1.111     albertel  476:     <input type="submit" name="next" value="$lt{'done'}" />
                    477:     <input type="submit" name="stop" value="$lt{'stop'}" />
1.143     albertel  478:     <input type="button" name="fail" value="$lt{'fail'}" 
                    479:            onclick="javascript:onFailRest()" />
1.111     albertel  480:   </div>
1.70      albertel  481:   $file_list
                    482: INFO
                    483:     return $result;
                    484: }
                    485: 
1.166     albertel  486: sub done_screen {
                    487:     my ($version) = @_;
                    488:     my $title=&Apache::lonnet::gettitle();
                    489:     my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
                    490:     my (undef,undef,$domain,$user)= &Apache::lonxml::whichuser();
                    491:     my $files = '<ul>';
1.167     albertel  492:     my $msg;
1.166     albertel  493:     foreach my $file (@files) {
                    494: 	my $url="/uploaded/$domain/$user/portfolio$file";
                    495: 	if (! &Apache::lonnet::stat_file($url)) {
                    496: 	    $file = &mt('<span class="LC_error"> Nonexistent file:</span> '.
                    497: 			'<span class="LC_filename">[_1]</span>',$file);
1.167     albertel  498: 	    $msg .= "<p>Submitted non-existant file $file</p>\n";
1.166     albertel  499: 	} else {
                    500: 	    $file = '<span class="LC_filename">'.$file.'</span>';
1.167     albertel  501: 	    $msg .= "<p>Submitted file $file</p>\n";
1.166     albertel  502: 	}
                    503: 	$files .= '<li>'.$file.'</li>';
                    504:     }
                    505:     $files.='</ul>';
1.167     albertel  506:     my $subject = "Submission message for $title";
                    507:     my ($message_status,$comment_status);
                    508:     my $setting = $env{'course.'.$env{'request.course.id'}.'.task_messages'};
                    509:     $setting =~ s/^\s*(\S*)\s*$/$1/;
                    510:     $setting = lc($setting);
                    511:     if ($setting eq 'only_student'
                    512: 	|| $setting eq 'student_and_user_notes_screen') {
                    513: 	$message_status =
                    514: 	    &Apache::lonmsg::user_normal_msg($user,$domain,$subject,$msg);
                    515: 	$message_status = '<p>'.&mt('Message sent to user: [_1]',
                    516: 				    $message_status).' </p>';
                    517:     }
                    518:     if ($setting eq 'student_and_user_notes_screen') {
                    519: 	$comment_status = 
                    520: 	    &Apache::lonmsg::store_instructor_comment($subject.'<br />'.
                    521: 						      $msg,$user,$domain);
                    522: 	$comment_status = '<p>'.&mt('Message sent to instructor: [_1]',
                    523: 				    $comment_status).' </p>';
                    524:     }
1.166     albertel  525:     return <<DONESCREEN;
                    526: <h2>$title</h2>
                    527: <p> Files submitted: $files </p>
                    528: <p> You are now done with this Bridge Task </p>
                    529: <hr />
                    530: <p> <a href="/adm/logout">Logout</a> </p>
                    531: <p> <a href="/adm/roles">Change to a different course</a> </p>
1.167     albertel  532: $message_status
                    533: $comment_status
1.166     albertel  534: DONESCREEN
                    535: 
                    536: }
                    537: 
1.1       albertel  538: sub start_Task {
1.87      albertel  539:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel  540: 
1.4       albertel  541:     my ($status,$accessmsg,$slot);
1.179     albertel  542:     &Apache::structuretags::init_problem_globals('Task');
1.16      albertel  543:     if ($target ne 'webgrade') {
                    544: 	&Apache::structuretags::initialize_storage();
                    545: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.74      albertel  546: 	if ($env{'request.state'} eq 'construct') {
                    547: 	    &Apache::structuretags::setup_rndseed($safeeval);
                    548: 	}
1.16      albertel  549:     } 
                    550: 
1.4       albertel  551:     $Apache::lonhomework::parsing_a_task=1;
1.141     albertel  552: 
                    553:     my $name;
                    554:     if ($target eq 'web' || $target eq 'webgrade') {
                    555: 	$name = &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    556:     }
                    557: 
1.145     albertel  558:     my ($result,$form_tag_start);
                    559:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
                    560: 	|| $target eq 'edit') {
                    561: 	($result,$form_tag_start) =
                    562: 	    &Apache::structuretags::page_start($target,$token,$tagstack,
                    563: 					       $parstack,$parser,$safeeval,
1.146     albertel  564: 					       $name,&style($target));
1.145     albertel  565: 	$result .= '<div class="LC_task">'."\n";
                    566:     }
1.123     albertel  567: 
1.74      albertel  568:     if ($target eq 'web' && $env{'request.state'} ne 'construct') {
1.147     albertel  569: 	if ($Apache::lonhomework::queuegrade
                    570: 	    || $Apache::lonhomework::modifygrades) {
1.141     albertel  571: 	    $result.='<form name="gradesubmission" method="post" action="';
1.13      albertel  572: 	    my $uri=$env{'request.uri'};
                    573: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
1.141     albertel  574: 	    $result.=$uri.'">'.&add_grading_button()."</form>";
1.38      albertel  575: 	    my $symb=&Apache::lonnet::symbread();
1.40      albertel  576: 	    if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
1.141     albertel  577: 		$result.='<form method="post" name="slotrequest" action="/adm/slotrequest">'.
1.40      albertel  578: 		    '<input type="hidden" name="symb" value="'.$symb.'" />'.
                    579: 		    '<input type="hidden" name="command" value="showslots" />'.
                    580: 		    '<input type="submit" name="requestattempt" value="'.
                    581: 		    &mt('Show Slot list').'" />'.
                    582: 		    '</form>';
1.108     albertel  583: 		my $target_id = 
                    584: 		    &Apache::lonstathelpers::make_target_id({symb => $symb,
                    585: 							     part => '0'});
1.141     albertel  586: 		$result.='<form method="post" name="gradingstatus" action="/adm/statistics">'.
1.108     albertel  587: 		    '<input type="hidden" name="problemchoice" value="'.$target_id.'" />'.
                    588: 		    '<input type="hidden" name="reportSelected" value="grading_analysis" />'.
                    589: 		    '<input type="submit" name="grading" value="'.
                    590: 		    &mt('Show Grading Status').'" />'.
                    591: 		    '</form>';
1.40      albertel  592: 	    }
1.13      albertel  593: 	}
1.8       albertel  594:     }
1.74      albertel  595:     if ($target eq 'web' && $env{'request.state'} eq 'construct') {
                    596: 	$form_tag_start.=&Apache::structuretags::problem_web_to_edit_header($env{'form.rndseed'});
                    597:     }
1.163     albertel  598:     if ($target eq 'web' 
                    599: 	|| ($target eq 'grade' && !$env{'form.webgrade'}) 
                    600: 	|| $target eq 'answer' 
                    601: 	|| $target eq 'tex') {
1.29      albertel  602: 	my ($version,$previous)=&get_version();
1.14      albertel  603: 	($status,$accessmsg,my $slot_name,$slot) = 
1.81      albertel  604: 	    &Apache::lonhomework::check_slot_access('0','Task');
1.152     albertel  605: 	if ($status eq 'CAN_ANSWER' && $version eq '') {
1.177     albertel  606: 	    # CAN_ANSWER mode, and no current version, unproctored access
1.174     albertel  607: 	    # thus self-checkedin
1.177     albertel  608: 	    &check_in('Task',undef,undef,$slot_name);
1.152     albertel  609: 	    &add_to_queue('gradingqueue',{'type' => 'Task',
                    610: 					  'time' => time,
                    611: 					  'slot' => $slot_name});
1.150     albertel  612: 	    ($version,$previous)=&get_version();
                    613: 	}
                    614: 
1.9       albertel  615: 	push(@Apache::inputtags::status,$status);
1.14      albertel  616: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  617: 	my $expression='$external::datestatus="'.$status.'";';
1.89      albertel  618: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.0.solved"}.'";';
1.1       albertel  619: 	&Apache::run::run($expression,$safeeval);
                    620: 	&Apache::lonxml::debug("Got $status");
1.141     albertel  621: 	$result.=&add_previous_version_button($status);
1.54      albertel  622: 	if (!&show_task($status,$previous)) {
1.87      albertel  623: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.1       albertel  624: 	    if ( $target eq "web" ) {
1.74      albertel  625: 		if ($env{'request.state'} eq 'construct') {
                    626: 		    $result.=$form_tag_start;
                    627: 		}
1.4       albertel  628: 		my $msg;
1.1       albertel  629: 		if ($status eq 'UNAVAILABLE') {
                    630: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  631: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    632: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.38      albertel  633: 		    $msg.=&add_request_another_attempt_button("Sign up for time to work.");
1.4       albertel  634: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    635: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    636: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  637: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    638: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.64      albertel  639: 		} elsif ($env{'form.donescreen'}) {
1.167     albertel  640: 		    $result .= &done_screen($version);
1.1       albertel  641: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    642: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    643: 		}
                    644: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    645: 		    $msg.='The problem '.$accessmsg;
                    646: 		}
                    647: 		$result.=$msg.'<br />';
                    648: 	    } elsif ($target eq 'tex') {
                    649: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    650: 		if ($status eq 'UNAVAILABLE') {
                    651: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    652: 		} else {
                    653: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    654: 		}
1.22      albertel  655: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  656: 		if ($status eq 'NEEDS_CHECKIN') {
1.83      albertel  657: 		    if(&proctor_check_auth($slot_name,$slot,'Task')
                    658: 		       && defined($Apache::inputtags::slot_name)) {
1.148     albertel  659: 			my $result=
                    660: 			    &add_to_queue('gradingqueue',
1.152     albertel  661: 					  {'type' => 'Task',
1.148     albertel  662: 					   'time' => time,
                    663: 					   'slot' => 
                    664: 					       $Apache::inputtags::slot_name});
1.77      albertel  665: 			&Apache::lonxml::debug("add_to_queue said $result");
                    666: 		    }
1.4       albertel  667: 		}
1.1       albertel  668: 	    }
                    669: 	} elsif ($target eq 'web') {
1.141     albertel  670: 
1.57      albertel  671: 	    $result.=&preserve_grade_info();
                    672: 	    $result.=&internal_location();
1.36      albertel  673: 	    $result.=$form_tag_start.
                    674: 		'<input type="hidden" name="submitted" value="yes" />';
1.54      albertel  675: 	    &Apache::lonxml::startredirection();
1.1       albertel  676: 	}
1.21      albertel  677:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    678: 	      $target eq 'webgrade') {
1.32      albertel  679: 	my $webgrade='yes';
1.21      albertel  680: 	if ($target eq 'webgrade') {
1.141     albertel  681: 	    $result.= "\n".'<div class="LC_GRADING_task">'."\n".
1.124     albertel  682: 		'<script type="text/javascript" 
1.126     albertel  683:                          src="/res/adm/includes/task_grading.js"></script>';
1.49      albertel  684: 	    #$result.='<br />Review'.&show_queue('reviewqueue');
                    685: 	    #$result.='<br />Grade'.&show_queue('gradingqueue');
1.30      albertel  686: 	}
1.33      albertel  687: 	# FIXME Blast! still need to reorg this, need to reshow the
                    688:         #       queue being reviewed once done with the grade pass...
                    689:         #       Hrrm, vaildation pass should perhaps say 'not_locked'
                    690:         #       perhaps do a search if there is a key that is mine and if
                    691:         #       there isn't reshow the queue....
1.105     albertel  692: 	my ($todo,$status_code,$msg)=&get_key_todo($target);
1.33      albertel  693: 
                    694: 	if ($todo) {
                    695: 	    &setup_env_for_other_user($todo,$safeeval);
                    696: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
                    697: 	    $result.="\n".'<table><tr><td>Found '.
                    698: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
                    699: 	    $form_tag_start.=
                    700: 		'<input type="hidden" name="gradingkey" value="'.
1.158     www       701: 		&escape($todo).'" />';
1.33      albertel  702: 	    $Apache::bridgetask::queue_key=$todo;
                    703: 	    &Apache::structuretags::initialize_storage();
                    704: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.110     albertel  705: 	    if ($target eq 'webgrade' && $status_code eq 'selected') {
                    706: 		$form_tag_start.=
                    707: 		    '<input type="hidden" name="queuemode" value="selected" />';
1.33      albertel  708: 	    }
1.15      albertel  709: 	} else {
1.33      albertel  710: 	    if ($target eq 'webgrade') {
                    711: 		$result.="\n";
1.81      albertel  712: 		my $back='<p><a href="/adm/flip?postdata=return:">'.
                    713: 		    &mt('Return to resource').'</a></p>';
1.33      albertel  714: 		if      ($status_code eq 'stop') {
1.81      albertel  715: 		    $result.='<b>'.&mt("Stopped grading.").'</b>'.$back;
1.163     albertel  716: 		} elsif ($status_code eq 'cancel') {
                    717: 		    $result.='<b>'.&mt("Cancelled grading.").'</b>'.$back;
1.164     albertel  718: 		} elsif ($status_code eq 'never_versioned') {
                    719: 		    $result.='<b>'.
                    720: 			&mt("Requested user has never accessed the task.").
                    721: 			'</b>'.$back;
1.165     albertel  722: 		} elsif ($status_code =~ /still_open:(.*)/) {
                    723: 		    my $date = &Apache::lonlocal::locallocaltime($1);
                    724: 		    $result.='<b>'.
                    725: 			&mt("Task is still open, will close at [_1].",$date).
                    726: 			'</b>'.$back;
1.33      albertel  727: 		} elsif ($status_code eq 'lock_failed') {
1.105     albertel  728: 		    $result.='<b>'.&mt("Failed to lock the requested record.")
1.81      albertel  729: 			.'</b>'.$back;
1.33      albertel  730: 		} elsif ($status_code eq 'unlock') {
1.81      albertel  731: 		    $result.='<b>'.&mt("Unlocked the requested record.")
                    732: 			.'</b>'.$back;
1.33      albertel  733: 		    $result.=&show_queue($env{'form.queue'},1);
                    734: 		} elsif ($status_code eq 'show_list') {
                    735: 		    $result.=&show_queue($env{'form.queue'},1);
1.49      albertel  736: 		} elsif ($status_code eq 'select_user') {
                    737: 		    $result.=&select_user();
1.95      albertel  738: 		} elsif ($status_code eq 'unable') {
                    739: 		    $result.='<b>'.&mt("Unable to aqcuire a user to grade.").'</b>'.$back;
1.105     albertel  740: 		} elsif ($status_code eq 'not_allowed') {
                    741: 		    $result.='<b>'.&mt('Not allowed to grade the requested user.').' '.$msg.'</b>'.$back;
1.33      albertel  742: 		} else {
1.81      albertel  743: 		    $result.='<b>'.&mt("No user to be graded.").'</b>'.$back;
1.32      albertel  744: 		}
1.21      albertel  745: 	    }
1.33      albertel  746: 	    $webgrade='no';
1.163     albertel  747: 	}
                    748: 	if (!$todo || $env{'form.cancel'}) {
1.87      albertel  749: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser,$style);
1.32      albertel  750: 	}
                    751: 	if ($target eq 'webgrade' && defined($env{'form.queue'})) {
1.61      albertel  752: 	    if ($webgrade eq 'yes') {
                    753: 		$result.=&submission_time_stamp();
                    754: 	    }
1.32      albertel  755: 	    $result.=$form_tag_start;
                    756: 	    $result.='<input type="hidden" name="webgrade" value="'.
                    757: 		$webgrade.'" />';
                    758: 	    $result.='<input type="hidden" name="queue" value="'.
                    759: 		$env{'form.queue'}.'" />';
1.52      albertel  760: 	    if ($env{'form.regrade'}) {
                    761: 		$result.='<input type="hidden" name="regrade" value="'.
                    762: 		    $env{'form.regrade'}.'" />';
                    763: 	    }
1.62      albertel  764: 	    if ($env{'form.chosensections'}) {
                    765: 		my @chosen_sections=
                    766: 		    &Apache::loncommon::get_env_multiple('form.chosensections');
                    767: 		foreach my $sec (@chosen_sections) {
                    768: 		    $result.='<input type="hidden" name="chosensections" 
                    769:                                value="'.$sec.'" />';
                    770: 		}
                    771: 	    }
1.70      albertel  772: 	    if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
1.15      albertel  773: 	}
1.110     albertel  774: 	if ($target eq 'webgrade') {
1.120     albertel  775: 	    $result.="\n".'<div id="LC_GRADING_criterialist">';
1.110     albertel  776: 	}
1.74      albertel  777:     } elsif ($target eq 'edit') {
1.141     albertel  778: 	$result.=$form_tag_start.
1.74      albertel  779: 	    &Apache::structuretags::problem_edit_header();
                    780: 	$Apache::lonxml::warnings_error_header=
                    781: 	    &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
                    782: 	my $temp=&Apache::edit::insertlist($target,$token);
                    783: 	$result.=$temp;
1.1       albertel  784:     } else {
                    785: 	# page_start returned a starting result, delete it if we don't need it
                    786: 	$result = '';
                    787:     }
                    788:     return $result;
                    789: }
                    790: 
1.165     albertel  791: sub get_task_end_time {
                    792:     my ($queue_entry,$symb,$udom,$uname) = @_;
                    793: 
                    794:     my $end_time;
                    795:     if (my $slot = &slotted_access($queue_entry)) {
                    796: 	my %slot_data=&Apache::lonnet::get_slot($slot);
                    797: 	$end_time = $slot_data{'endtime'};
                    798:     } else {
                    799: 	$end_time = &Apache::lonhomework::due_date('0',$symb,
                    800: 						   $udom,$uname);
                    801:     }
                    802:     return $end_time;
                    803: }
                    804: 
1.32      albertel  805: sub get_key_todo {
                    806:     my ($target)=@_;
                    807:     my $todo;
1.33      albertel  808: 
                    809:     if (defined($env{'form.reviewasubmission'})) {
1.54      albertel  810: 	&Apache::lonxml::debug("review a submission....");
1.33      albertel  811: 	$env{'form.queue'}='reviewqueue';
                    812: 	return (undef,'show_list');
                    813:     }
                    814: 
                    815:     if (defined($env{'form.reviewagrading'})) {
                    816: 	&Apache::lonxml::debug("review a grading....");
                    817: 	$env{'form.queue'}='gradingqueue';
                    818: 	return (undef,'show_list');
                    819:     }
                    820: 
1.49      albertel  821:     if (defined($env{'form.regradeasubmission'})) {
                    822: 	&Apache::lonxml::debug("regrade a grading....");
                    823: 	$env{'form.queue'}='none';
                    824: 	return (undef,'select_user');
                    825:     }
                    826: 
1.105     albertel  827: 
1.138     albertel  828:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.105     albertel  829: 
                    830:     #need to try both queues..
                    831:     if (defined($env{'form.regradeaspecificsubmission'}) &&
                    832: 	defined($env{'form.gradinguser'})               &&
                    833: 	defined($env{'form.gradingdomain'})               ) {
                    834: 	my ($symb,$cid)=&Apache::lonxml::whichuser();
                    835: 	my $cnum  = $env{'course.'.$cid.'.num'};
                    836: 	my $cdom  = $env{'course.'.$cid.'.domain'};
                    837: 	my $uname = $env{'form.gradinguser'};
                    838: 	my $udom  = $env{'form.gradingdomain'};
                    839: 
                    840: 	my $gradingkey=&encode_queue_key($symb,$udom,$uname);
                    841: 
                    842: 	my $queue;
                    843: 
                    844: 	if      (&in_queue('gradingqueue',$symb,$cdom,$cnum,$udom,$uname)) {
                    845: 	    $env{'form.queue'} = $queue = 'gradingqueue';
                    846: 	} elsif (&in_queue('reviewqueue' ,$symb,$cdom,$cnum,$udom,$uname)) {
                    847: 	    $env{'form.queue'} = $queue = 'reviewqueue';
                    848: 	}
                    849: 	
                    850: 	if (!$queue) {
                    851: 	    $env{'form.queue'} = $queue = 'none';
                    852: 	    #not queued so doing either a re or pre grade
1.164     albertel  853: 	    my %status = &Apache::lonnet::restore($symb,$cid,$udom,$uname);
                    854: 	    if ($status{'resource.0.version'} < 1) {
                    855: 		return (undef,'never_versioned');
                    856: 	    }
1.105     albertel  857: 	    return ($gradingkey);
                    858: 	}
                    859: 
1.165     albertel  860: 	if ($queue) {
                    861: 	    my $queue_entry = &get_queue_data($queue,$udom,$uname);
                    862: 	
                    863: 	    my $end_time = &get_task_end_time($queue_entry,$symb,
                    864: 					      $udom,$uname);
                    865: 	    if ($end_time > time) {
                    866: 		return (undef,"still_open:$end_time");
                    867: 	    }
                    868: 	}
                    869: 
1.105     albertel  870: 	my $who=&queue_key_locked($queue,$gradingkey);
                    871: 	if ($who eq $me) {
                    872: 	    #already have the lock
1.158     www       873: 	    $env{'form.gradingkey'}=&escape($gradingkey);
1.163     albertel  874: 	    &Apache::lonxml::debug("already locked");
1.105     albertel  875: 	    return ($gradingkey);
                    876: 	}
                    877: 	
                    878: 	if (!defined($who)) {
                    879: 	    if (&lock_key($queue,$gradingkey)) {
1.163     albertel  880: 		&Apache::lonxml::debug("newly locked");
1.105     albertel  881: 		return ($gradingkey);
                    882: 	    } else {
                    883: 		return (undef,'lock_failed');
                    884: 	    }
                    885: 	}
                    886: 
                    887: 	#otherwise (defined($who) && $who ne $me) some else has it...
                    888: 	return (undef,'not_allowed',
                    889: 		&mt('Another user ([_1]) currently has the record for [_2] locked.',
1.138     albertel  890: 		    $who,$env{'form.gradinguser'}.':'.$env{'form.gradingdomain'}));
1.105     albertel  891:     }
                    892: 
                    893: 
1.32      albertel  894:     my $queue=$env{'form.queue'};
1.33      albertel  895: 
1.32      albertel  896:     if (!defined($queue)) {
                    897: 	$env{'form.queue'}=$queue='gradingqueue';
                    898:     }
1.33      albertel  899: 
1.158     www       900:     my $gradingkey=&unescape($env{'form.gradingkey'});
1.33      albertel  901: 
1.49      albertel  902:     if ($env{'form.queue'} eq 'none') {
                    903: 	if (defined($env{'form.gradingkey'})) {
                    904: 	    if ($target eq 'webgrade') {
                    905: 		if ($env{'form.stop'}) {
                    906: 		    return (undef,'stop');
1.163     albertel  907: 		} elsif ($env{'form.cancel'}) {
                    908: 		    return (undef,'cancel');
1.49      albertel  909: 		} elsif ($env{'form.next'}) {
1.59      albertel  910: 		    return (undef,'select_user');
1.49      albertel  911: 		}
                    912: 	    }
                    913: 	    return ($gradingkey,'selected');
                    914: 	} else {
1.59      albertel  915: 	    return (undef,'select_user');
1.49      albertel  916: 	}
                    917:     }
1.32      albertel  918:     if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
1.33      albertel  919: 	&& !defined($env{'form.gradingaction'}) 
                    920: 	&& $env{'form.queuemode'} eq 'selected') {
                    921: 	
                    922: 	my $who=&queue_key_locked($queue,$gradingkey);
                    923: 	if ($who eq $me) {
                    924: 	    &Apache::lonxml::debug("Found a key was given to me");
                    925: 	    return ($gradingkey,'selected');
                    926: 	} else {
                    927: 	    return (undef,'show_list');
                    928: 	}
                    929: 
                    930:     }
                    931: 
                    932:     if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
                    933: 	if ($env{'form.gradingaction'} eq 'resume') {
                    934: 	    delete($env{'form.gradingaction'});
                    935: 	    &Apache::lonxml::debug("Resuming a key");
1.32      albertel  936: 	    return ($gradingkey);
1.33      albertel  937: 	} elsif ($env{'form.gradingaction'} eq 'unlock') {
                    938: 	    &Apache::lonxml::debug("Unlocking a key ".
                    939: 				     &check_queue_unlock($queue,$gradingkey,1));
                    940: 	    return (undef,'unlock');
                    941: 	} elsif ($env{'form.gradingaction'} eq 'select') {
                    942: 	    &Apache::lonxml::debug("Locking a key");
                    943: 	    if (&lock_key($queue,$gradingkey)) {
                    944: 		&Apache::lonxml::debug("Success $queue");
                    945: 		return ($gradingkey);
                    946: 	    }
                    947: 	    &Apache::lonxml::debug("Failed $queue");
                    948: 	    return (undef,'lock_failed');
1.32      albertel  949: 	}
                    950:     }
1.33      albertel  951: 
                    952:     if ($env{'form.queuemode'} ne 'selected') {
                    953: 	# don't get something new from the queue if they hit the stop button
1.163     albertel  954:     	if (!(($env{'form.cancel'} || $env{'form.stop'}) 
                    955: 	      && $target eq 'webgrade') 
1.33      albertel  956: 	    && !$env{'form.gradingaction'}) {
                    957: 	    &Apache::lonxml::debug("Getting anew $queue");
                    958: 	    return (&get_from_queue($queue));
                    959: 	} else {
                    960: 	    return (undef,'stop');
                    961: 	}
1.32      albertel  962:     }
1.33      albertel  963:     return (undef,undef)
1.32      albertel  964: }
1.94      albertel  965: 
                    966: sub minimize_storage {
                    967:     foreach my $key (keys(%Apache::lonhomework::results)) {
                    968: 	if ($key =~ /regrader$/) { next; }
                    969: 	if ($Apache::lonhomework::results{$key} eq
                    970: 	    $Apache::lonhomework::history{$key}) {
                    971: 	    delete($Apache::lonhomework::results{$key});
                    972: 	}
                    973:     }
                    974: }
                    975: 
1.1       albertel  976: sub end_Task {
                    977:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    978:     my $result='';
                    979:     my $status=$Apache::inputtags::status['-1'];
1.29      albertel  980:     my ($version,$previous)=&get_version();
1.1       albertel  981:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  982: 	$target eq 'tex') {
1.69      albertel  983: 	if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
1.1       albertel  984: 	    if ($target eq 'web') {
1.54      albertel  985: 		if (&show_task($status,$previous)) {
                    986: 		    $result.=&Apache::lonxml::endredirection();
                    987: 		}
1.64      albertel  988: 		if ($status eq 'CAN_ANSWER' && !$previous && 
                    989: 		    !$env{'form.donescreen'}) {
1.15      albertel  990: 		    $result.="\n".'<table border="1">'.
1.28      albertel  991: 			&Apache::inputtags::file_selector("$version.0",
                    992: 							  "bridgetask","*",
1.46      albertel  993: 							  'portfolioonly',
                    994: 							  '
                    995: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
                    996: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
1.9       albertel  997: 							  "</table>";
1.77      albertel  998: 		}
1.78      albertel  999: 		if (!$previous && $status ne 'SHOW_ANSWER' &&
                   1000: 		    &show_task($status,$previous)) {
1.9       albertel 1001: 		    $result.=&Apache::inputtags::gradestatus('0');
1.64      albertel 1002: 		    $result.='</form>';
1.116     albertel 1003: 		    my $action = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.64      albertel 1004: 		    $result.=<<DONEBUTTON;
1.115     albertel 1005: <form name="done" method="post" action="$action">
1.64      albertel 1006:    <input type="hidden" name="donescreen" value="1" />
                   1007:    <input type="submit" value="Done" />
                   1008: </form>
                   1009: DONEBUTTON
1.77      albertel 1010:                 }
1.56      albertel 1011: 		if (&show_task($status,$previous) &&
1.89      albertel 1012: 		    $Apache::lonhomework::history{"resource.$version.0.status"} =~ /^(pass|fail)$/) {
                   1013: 		    my $bt_status=$Apache::lonhomework::history{"resource.$version.0.status"};
1.54      albertel 1014: 		    my $title=&Apache::lonnet::gettitle();
1.80      albertel 1015: 
1.149     albertel 1016: 		    my $start_time;
                   1017: 
1.80      albertel 1018: 		    my $slot_name=
1.89      albertel 1019: 			$Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
1.149     albertel 1020: 		    if ($slot_name) {
                   1021: 			my %slot=&Apache::lonnet::get_slot($slot_name);
                   1022: 
                   1023: 			$start_time=$slot{'starttime'}
                   1024: 		    } else {
                   1025: 			$start_time= 
                   1026: 			    &Apache::lonnet::EXT('resource.0.opendate');
                   1027: 		    }
                   1028: 		    $start_time=&Apache::lonlocal::locallocaltime($start_time);
1.54      albertel 1029: 
1.116     albertel 1030: 		    my $status = "\n<div class='LC_$bt_status LC_criteria'>\n";
1.54      albertel 1031: 		    
                   1032: 		    if ($bt_status eq 'pass')  {
                   1033: 			$status.='<h2>You passed the '.$title.' given on '.
1.80      albertel 1034: 			    $start_time.'</h2>';
1.54      albertel 1035: 		    }
                   1036: 		    if ($bt_status eq 'fail')  {
                   1037: 			$status.='<h2>You did not pass the '.$title.' given on '.
1.80      albertel 1038: 			    $start_time.'</h2>';
1.54      albertel 1039: 			if (!$previous) {
                   1040: 			    $status.=&add_request_another_attempt_button();
                   1041: 			}
                   1042: 		    }
                   1043: 		    my $man_count=0;
                   1044: 		    my $opt_count=0;
                   1045: 		    my $opt_passed=0;
1.168     albertel 1046: 		    foreach my $dim (keys(%Apache::bridgetask::top_dimensionlist)) {
                   1047: 			if ($Apache::bridgetask::top_dimensionlist{$dim}{'manadatory'}
1.54      albertel 1048: 			    eq 'N') {
                   1049: 			    $opt_count++;
1.168     albertel 1050: 			    if ($Apache::lonhomework::history{"resource.$version.0.$dim.status"} eq 'pass') {
1.54      albertel 1051: 				$opt_passed++;
                   1052: 			    }
                   1053: 			} else {
                   1054: 			    $man_count++;
                   1055: 			}
                   1056: 		    }
1.151     albertel 1057: 		    
1.54      albertel 1058: 		    my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
                   1059: 							 $parstack,$safeeval);
                   1060: 		    if ($opt_req !~ /\S/) { $opt_req='0'; }
1.99      albertel 1061: 		    $status.="\n<p>".&mt('You needed to pass all of the [_1]  mandatory components and [_2] of the [_3] optional components, of which you passed [_4].',$man_count,$opt_req,$opt_count,$opt_passed)."</p></div>\n";
1.54      albertel 1062: 
                   1063: 		    my $internal_location=&internal_location();
                   1064: 		    $result=~s/\Q$internal_location\E/$status/;
                   1065: 		}
1.142     albertel 1066: 		$result.="\n</div>\n".
                   1067: 		    &Apache::loncommon::end_page({'discussion' => 1});
1.1       albertel 1068: 	    }
                   1069: 	}
1.181     albertel 1070: 
                   1071: 	my $useslots = &Apache::lonnet::EXT("resource.0.useslots");
                   1072: 	my %queue_data = ('type' => 'Task',
                   1073: 			  'time' => time,);
                   1074: 	if (defined($Apache::inputtags::slot_name)) {
                   1075: 	    $queue_data{'slot'} = $Apache::inputtags::slot_name;
                   1076: 	} elsif (defined($Apache::lonhomework::history{"resource.$version.0.checkedin.slot"})) {
                   1077: 	    $queue_data{'slot'} = $Apache::lonhomework::history{"resource.$version.0.checkedin.slot"};
                   1078: 	}
                   1079: 	
                   1080: 
1.29      albertel 1081: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel 1082: 	    my $award='SUBMITTED';
1.28      albertel 1083: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel 1084: 						    'portfiles',\$award);
1.14      albertel 1085: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel 1086: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                   1087: 		$Apache::lonhomework::results{"resource.0.tries"}=
                   1088: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                   1089: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                   1090: 
                   1091: 		$Apache::lonhomework::results{"resource.0.award"}=
                   1092: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                   1093: 		    $award;
1.51      albertel 1094: 		$Apache::lonhomework::results{"resource.0.submission"}=
                   1095: 		    $Apache::lonhomework::results{"resource.$version.0.submission"}='';
1.64      albertel 1096: 	    } else {
                   1097: 		delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
1.77      albertel 1098: 		$award = '';
1.10      albertel 1099: 	    }
1.4       albertel 1100: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                   1101: 	    &Apache::structuretags::finalize_storage();
1.148     albertel 1102: 	    if ($award eq 'SUBMITTED') {
1.181     albertel 1103: 		&add_to_queue('gradingqueue',\%queue_data);
1.14      albertel 1104: 	    }
1.1       albertel 1105: 	}
1.163     albertel 1106: 	if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
                   1107: 	    && exists($env{'form.cancel'})) {
                   1108: 	    &check_queue_unlock($env{'form.queue'});
                   1109: 	    &Apache::lonxml::debug(" cancelled grading .".$env{'form.queue'});
                   1110: 	} elsif ($target eq 'grade' && $env{'form.webgrade'} eq 'yes' 
                   1111: 		 && !exists($env{'form.cancel'})) {
1.20      albertel 1112: 	    my $optional_required=
                   1113: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                   1114: 					   $safeeval);
                   1115: 	    my $optional_passed=0;
                   1116: 	    my $mandatory_failed=0;
                   1117: 	    my $ungraded=0;
                   1118: 	    my $review=0;   
1.21      albertel 1119: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.168     albertel 1120: 	    foreach my $dim (keys(%Apache::bridgetask::top_dimensionlist)) {
1.20      albertel 1121: 		my $status=
1.168     albertel 1122: 		    $Apache::lonhomework::results{"resource.$version.0.$dim.status"};
1.20      albertel 1123: 		my $mandatory=
1.168     albertel 1124: 		    ($Apache::bridgetask::top_dimensionlist{$dim}{'manadatory'} ne 'N');
1.20      albertel 1125: 		if ($status eq 'pass') {
                   1126: 		    if (!$mandatory) { $optional_passed++; }
                   1127: 		} elsif ($status eq 'fail') {
                   1128: 		    if ($mandatory) { $mandatory_failed++; }
                   1129: 		} elsif ($status eq 'ungraded') {
                   1130: 		    $ungraded++;
                   1131: 		} elsif ($status eq 'review') {
                   1132: 		    $review++;
1.49      albertel 1133: 		} else {
                   1134: 		    $ungraded++;
                   1135: 		}
1.20      albertel 1136: 	    }
                   1137: 	    if ($optional_passed < $optional_required) {
                   1138: 		$mandatory_failed++;
                   1139: 	    }
1.168     albertel 1140: 	    &Apache::lonxml::debug("all dim ".join(':',keys(%Apache::bridgetask::top_dimensionlist))."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.89      albertel 1141: 	    $Apache::lonhomework::results{'resource.0.regrader'}=
1.138     albertel 1142: 		$env{'user.name'}.':'.$env{'user.domain'};
1.20      albertel 1143: 	    if ($review) {
1.89      albertel 1144: 		$Apache::lonhomework::results{"resource.$version.0.status"}='review';
1.33      albertel 1145: 		if ($env{'form.queue'} eq 'reviewqueue') {
                   1146: 		    &check_queue_unlock($env{'form.queue'});
                   1147: 		    &Apache::lonxml::debug(" still needs review not changing status.");
                   1148: 		} else {
1.181     albertel 1149: 		    if ($env{'form.queue'} ne 'none') {
                   1150: 			&move_between_queues($env{'form.queue'},'reviewqueue');
                   1151: 		    } else {
                   1152: 			&add_to_queue('reviewqueue',\%queue_data);
                   1153: 		    }
1.33      albertel 1154: 		}
1.20      albertel 1155: 	    } elsif ($ungraded) {
1.89      albertel 1156: 		$Apache::lonhomework::results{"resource.$version.0.status"}='ungraded';
1.181     albertel 1157: 		if ($env{'form.queue'} eq 'reviewqueue') {
1.33      albertel 1158: 		    &Apache::lonxml::debug("moving back.");
1.181     albertel 1159: 		    &move_between_queues($env{'form.queue'},
                   1160: 					 'gradingqueue');
                   1161: 		} elsif ($env{'form.queue'} eq 'none' ) {
                   1162: 		    &add_to_queue('gradingqueue',\%queue_data);	
1.33      albertel 1163: 		} else {
                   1164: 		    &check_queue_unlock($env{'form.queue'});
                   1165: 		}
1.20      albertel 1166: 	    } elsif ($mandatory_failed) {
1.89      albertel 1167: 		$Apache::lonhomework::results{"resource.$version.0.status"}='fail';
1.25      albertel 1168: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                   1169: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                   1170: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.39      albertel 1171: 		&remove_from_queue($env{'form.queue'}); 
                   1172: 
                   1173: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel 1174: 		
                   1175: 		if ($env{'form.regrade'} ne 'yes') {
                   1176: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                   1177: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                   1178: 		    &Apache::grades::version_portfiles(
                   1179: 						       \%Apache::lonhomework::results,
                   1180: 						       ["$version.0.bridgetask"],$courseid,
                   1181: 						       $symb,$udom,$uname,
                   1182: 						       ["$version.0.bridgetask"]);
                   1183: 		}
1.20      albertel 1184: 	    } else {
1.89      albertel 1185: 		$Apache::lonhomework::results{"resource.$version.0.status"}='pass';
1.25      albertel 1186: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                   1187: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                   1188: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.32      albertel 1189: 		&remove_from_queue($env{'form.queue'});
1.39      albertel 1190: 
                   1191: 		my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
1.52      albertel 1192: 		if ($env{'form.regrade'} ne 'yes') {
                   1193: 		    $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
                   1194: 			$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
                   1195: 		    &Apache::grades::version_portfiles(
                   1196: 						       \%Apache::lonhomework::results,
                   1197: 						       ["$version.0.bridgetask"],$courseid,
                   1198: 						       $symb,$udom,$uname,
                   1199: 						       ["$version.0.bridgetask"]);
                   1200: 		}
1.20      albertel 1201: 	    }
1.89      albertel 1202: 	    $Apache::lonhomework::results{"resource.0.status"}=
                   1203: 		$Apache::lonhomework::results{"resource.$version.0.status"};
1.28      albertel 1204: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel 1205: 		$Apache::lonhomework::results{"resource.0.award"}=
1.50      albertel 1206: 		    $Apache::lonhomework::results{"resource.$version.0.award"};
1.26      albertel 1207: 		$Apache::lonhomework::results{"resource.0.awarded"}=
1.50      albertel 1208: 		    $Apache::lonhomework::results{"resource.$version.0.awarded"};
1.26      albertel 1209: 		$Apache::lonhomework::results{"resource.0.solved"}=
1.50      albertel 1210: 		    $Apache::lonhomework::results{"resource.$version.0.solved"};
1.25      albertel 1211: 	    }
1.94      albertel 1212: 	    &minimize_storage();
1.21      albertel 1213: 	    &Apache::structuretags::finalize_storage();
1.20      albertel 1214: 	}
1.184   ! albertel 1215: 	if (exists($Apache::lonhomework::results{'INTERNAL_store'})) {
        !          1216: 	    # instance generation occured and hasn't yet been stored
        !          1217: 	    &Apache::structuretags::finalize_storage();
        !          1218: 	}
1.15      albertel 1219:     } elsif ($target eq 'webgrade') {
1.131     albertel 1220: 	$result.="</div>";
1.20      albertel 1221: 	#$result.='<input type="submit" name="next" value="'.
                   1222: 	#    &mt('Save &amp; Next').'" /> ';
                   1223: 	#$result.='<input type="submit" name="end" value="'.
                   1224: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                   1225: 	#$result.='<input type="submit" name="throwaway" value="'.
                   1226: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                   1227: 	#$result.='<input type="submit" name="save" value="'.
                   1228: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.124     albertel 1229: 	$result.='</form>'."\n</div>\n</div>\n".
1.140     albertel 1230: 	    &Apache::loncommon::end_page();
1.1       albertel 1231:     } elsif ($target eq 'meta') {
1.70      albertel 1232: 	$result.=&Apache::response::meta_package_write('Task');
1.77      albertel 1233:         $result.=&Apache::response::meta_stores_write('solved','string',
                   1234: 						      'Problem Status');
                   1235: 	$result.=&Apache::response::meta_stores_write('tries','int_zeropos',
                   1236: 						      'Number of Attempts');
                   1237: 	$result.=&Apache::response::meta_stores_write('awarded','float',
                   1238: 						      'Partial Credit Factor');
                   1239: 	$result.=&Apache::response::meta_stores_write('status','string',
                   1240: 						      'Bridge Task Status');
1.182     albertel 1241:     } elsif ($target eq 'edit') {
                   1242: 	&Apache::structuretags::reset_problem_globals('Task');
                   1243: 	undef($Apache::lonhomework::parsing_a_task);
                   1244: 	return ('','no');
1.1       albertel 1245:     }
1.179     albertel 1246:     &Apache::structuretags::reset_problem_globals('Task');
1.4       albertel 1247:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel 1248:     return $result;
                   1249: }
                   1250: 
1.31      albertel 1251: sub move_between_queues {
                   1252:     my ($src_queue,$dest_queue)=@_;
1.49      albertel 1253:     my $cur_data;
                   1254:     if ($src_queue ne 'none') {
                   1255: 	$cur_data=&get_queue_data($src_queue);
                   1256: 	if (!$cur_data) { return 'not_exist'; }
                   1257:     } else {
                   1258: 	$cur_data = ['none'];
                   1259:     }
1.148     albertel 1260:     my $result=&add_to_queue($dest_queue,$cur_data);
1.31      albertel 1261:     if ($result ne 'ok') {
                   1262: 	return $result;
                   1263:     }
                   1264:     &check_queue_unlock($src_queue);
                   1265:     return &remove_from_queue($src_queue);
1.21      albertel 1266: }
                   1267: 
                   1268: sub check_queue_unlock {
1.32      albertel 1269:     my ($queue,$key,$allow_not_me)=@_;
1.49      albertel 1270:     if ($queue eq 'none') { return 'ok'; }
1.30      albertel 1271:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.32      albertel 1272:     if (!defined($key)) {
1.138     albertel 1273: 	$key="$symb\0queue\0$uname:$udom";
1.32      albertel 1274:     }
1.30      albertel 1275:     my $cnum=$env{'course.'.$cid.'.num'};
                   1276:     my $cdom=$env{'course.'.$cid.'.domain'};
1.138     albertel 1277:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.30      albertel 1278:     my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
                   1279:     if  ($who eq $me) {
1.163     albertel 1280: 	&Apache::lonxml::debug("unlocking my own $who");
1.32      albertel 1281: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
                   1282:     } elsif ($allow_not_me) {
1.33      albertel 1283: 	&Apache::lonxml::debug("unlocking $who by $me");
1.32      albertel 1284: 	return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
1.30      albertel 1285:     }
1.32      albertel 1286:     return 'not_owner';
1.21      albertel 1287: }
                   1288: 
1.88      albertel 1289: sub in_queue {
                   1290:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
                   1291:     if ($queue eq 'none') { return 0; }
                   1292:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                   1293: 	|| !defined($udom) || !defined($uname)) {
                   1294: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1295: 	$cnum=$env{'course.'.$cid.'.num'};
                   1296: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1297:     }
                   1298: 
                   1299:     my $key=&encode_queue_key($symb,$udom,$uname);
                   1300:     my %results = &Apache::lonnet::get($queue,[$key],$cdom,$cnum);
                   1301: 
                   1302:     if (defined($results{$key})) {
                   1303: 	return 1;
                   1304:     }
                   1305:     return 0;
                   1306: }
                   1307: 
1.21      albertel 1308: sub remove_from_queue {
1.86      albertel 1309:     my ($queue,$symb,$cdom,$cnum,$udom,$uname)=@_;
1.49      albertel 1310:     if ($queue eq 'none') { return 'ok'; }
1.86      albertel 1311:     if (!defined($symb) || !defined($cdom) || !defined($cnum)
                   1312: 	|| !defined($udom) || !defined($uname)) {
                   1313: 	($symb,my $cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1314: 	$cnum=$env{'course.'.$cid.'.num'};
                   1315: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1316:     }
1.88      albertel 1317:     if (!&in_queue($queue,$symb,$cdom,$cnum,$udom,$uname)) {
                   1318: 	return 'ok';
                   1319:     }
1.86      albertel 1320:     my $key=&encode_queue_key($symb,$udom,$uname);
1.27      albertel 1321:     my @keys=($key,"$key\0locked");
1.31      albertel 1322:     return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
1.21      albertel 1323: }
                   1324: 
1.16      albertel 1325: sub setup_env_for_other_user {
                   1326:     my ($queue_key,$safeeval)=@_;
                   1327:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
1.30      albertel 1328:     &Apache::lonxml::debug("setup_env for $queue_key");
1.16      albertel 1329:     $env{'form.grade_symb'}=$symb;
                   1330:     $env{'form.grade_domain'}=$udom;
                   1331:     $env{'form.grade_username'}=$uname;
                   1332:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                   1333:     &Apache::lonxml::initialize_rndseed($safeeval);
                   1334: }
                   1335: 
1.31      albertel 1336: sub get_queue_data {
1.165     albertel 1337:     my ($queue,$udom,$uname)=@_;
                   1338:     my ($symb,$cid,$other_udom,$other_uname)=&Apache::lonxml::whichuser();
                   1339:     if (!$uname || !$udom) {
                   1340: 	$uname=$other_uname;
                   1341: 	$udom =$other_udom;
                   1342:     }
1.31      albertel 1343:     my $cnum=$env{'course.'.$cid.'.num'};
                   1344:     my $cdom=$env{'course.'.$cid.'.domain'};
1.138     albertel 1345:     my $todo="$symb\0queue\0$uname:$udom";
1.31      albertel 1346:     my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
                   1347:     if ($key eq $todo && ref($value)) {
                   1348: 	return $value;
                   1349:     }
                   1350:     return undef;
                   1351: }
                   1352: 
1.84      albertel 1353: 
1.49      albertel 1354: sub check_queue_for_key {
1.84      albertel 1355:     my ($cdom,$cnum,$queue,$todo)=@_;
                   1356: 
1.49      albertel 1357:     my %results=
                   1358: 	&Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
                   1359:     
                   1360:     if (exists($results{$todo}) && ref($results{$todo})) {
                   1361: 	if (defined($results{"$todo\0locked"})) {
                   1362: 	    return 'locked';
                   1363: 	}
1.148     albertel 1364: 	if (my $slot=&slotted_access($results{$todo})) {
1.86      albertel 1365: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1366: 	    if ($slot_data{'endtime'} > time) { 
                   1367: 		return 'in_progress';
                   1368: 	    }
1.148     albertel 1369: 	} else {
                   1370: 	    my ($symb) = &decode_queue_key($todo);
                   1371: 	    my $due_date = &Apache::lonhomework::due_date('0',$symb);
                   1372: 	    if ($due_date > time) {
                   1373: 		return 'in_progress';
                   1374: 	    }
1.58      albertel 1375: 	}
1.49      albertel 1376: 	return 'enqueued';
                   1377:     }
                   1378:     return undef;
                   1379: }
                   1380: 
1.14      albertel 1381: sub add_to_queue {
1.82      albertel 1382:     my ($queue,$user_data)=@_;
1.49      albertel 1383:     if ($queue eq 'none') { return 'ok'; }
1.14      albertel 1384:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1.82      albertel 1385:     if (!$cid || $env{'request.state'} eq 'construct') {
                   1386: 	return 'no_queue';
                   1387:     }
1.14      albertel 1388:     my $cnum=$env{'course.'.$cid.'.num'};
                   1389:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1390:     my %data;
1.138     albertel 1391:     $data{"$symb\0queue\0$uname:$udom"}=$user_data;
1.83      albertel 1392:     return &Apache::lonnet::cput($queue,\%data,$cdom,$cnum);
1.14      albertel 1393: }
                   1394: 
1.156     albertel 1395: sub get_limited_classlist {
                   1396:     my ($sections) = @_;
                   1397: 
                   1398:     my $classlist = &Apache::loncoursedata::get_classlist();
1.157     albertel 1399:     foreach my $student (keys(%$classlist)) {
                   1400: 	if ( $classlist->{$student}[&Apache::loncoursedata::CL_STATUS()]
                   1401: 	     ne 'Active') {
                   1402: 	    delete($classlist->{$student});
                   1403:        	}
                   1404:     }
1.156     albertel 1405: 
1.157     albertel 1406:     if (ref($sections) && !grep('all',@{ $sections })) {
1.156     albertel 1407: 	foreach my $student (keys(%$classlist)) {
                   1408: 	    my $section  = 
                   1409: 		$classlist->{$student}[&Apache::loncoursedata::CL_SECTION()];
                   1410: 	    if (! grep($section,@{ $sections })) {
                   1411: 		delete($classlist->{$student});
                   1412: 	    }
                   1413: 	}
                   1414:     }
                   1415:     return $classlist;
                   1416: }
                   1417: 
                   1418: 
1.14      albertel 1419: sub show_queue {
1.32      albertel 1420:     my ($queue,$with_selects)=@_;
1.14      albertel 1421:     my $result;
                   1422:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1423:     my $cnum=$env{'course.'.$cid.'.num'};
                   1424:     my $cdom=$env{'course.'.$cid.'.domain'};
1.59      albertel 1425: 
                   1426:     my @chosen_sections=
                   1427: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.156     albertel 1428: 
                   1429:     my $classlist = &get_limited_classlist(\@chosen_sections);
                   1430: 
1.63      albertel 1431:     if (!(grep(/^all$/,@chosen_sections))) {
                   1432: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1433: 	    '</tt>.</p> '."\n";
                   1434:     }
1.59      albertel 1435: 
1.156     albertel 1436:     my ($view,$view_section);
                   1437:     my $scope = $env{'request.course.id'};
                   1438:     if (!($view=&Apache::lonnet::allowed('vgr',$scope))) {
                   1439: 	$scope .= '/'.$env{'request.course.sec'};
                   1440: 	if ( $view = &Apache::lonnet::allowed('vgr',$scope)) {
                   1441: 	    $view_section=$env{'request.course.sec'};
                   1442: 	} else {
                   1443: 	    undef($view);
                   1444: 	}
                   1445:     }
                   1446: 
1.16      albertel 1447:     my $regexp="^$symb\0";
1.30      albertel 1448:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.31      albertel 1449:     my ($tmp)=%queue;
                   1450:     if ($tmp=~/^error: 2 /) {
1.159     albertel 1451: 	return "\n<h3>Current Queue - $queue</h3>".
                   1452: 	    &Apache::loncommon::start_data_table().
                   1453: 	    &Apache::loncommon::start_data_table_row().
                   1454: 	    '<td>'.&mt('Empty').'</td>'.
                   1455: 	    &Apache::loncommon::end_data_table_row().
                   1456: 	    &Apache::loncommon::end_data_table();
1.31      albertel 1457:     }
1.103     albertel 1458:     my $title=&Apache::lonnet::gettitle($symb);
1.159     albertel 1459:     $result.="\n<h3>Current Queue - $title $queue </h3>".
                   1460: 	&Apache::loncommon::start_data_table().
                   1461: 	&Apache::loncommon::start_data_table_header_row();
1.103     albertel 1462:     if ($with_selects) { $result.="<th>Status</th><th></th>"; }
1.159     albertel 1463:     $result.="<th>user</th><th>data</th>".
                   1464: 	&Apache::loncommon::end_data_table_header_row();
1.14      albertel 1465:     foreach my $key (sort(keys(%queue))) {
1.59      albertel 1466: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1467: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
1.156     albertel 1468: 	
                   1469: 	my $section = $classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
                   1470: 
                   1471: 	my $can_view=1;
                   1472: 	if (!$view
                   1473: 	    || ($view_section && !$section)
                   1474: 	    || ($view_section && $section && ($view_section ne $section))) {
                   1475: 	    $can_view=0;
                   1476: 	}
                   1477: 
1.32      albertel 1478: 	if ($key=~/locked$/ && !$with_selects) {
1.159     albertel 1479: 	    $result.= &Apache::loncommon::start_data_table_row().
                   1480: 		"<td>$uname</td>";
1.103     albertel 1481: 	    $result.='<td>'.$queue{$key}.'</td></tr>';
1.32      albertel 1482: 	} elsif ($key=~/timestamp$/ && !$with_selects) {
1.159     albertel 1483: 	    $result.=&Apache::loncommon::start_data_table_row()."<td></td>";
1.103     albertel 1484: 	    $result.='<td>'.
1.16      albertel 1485: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1.32      albertel 1486: 	} elsif ($key!~/(timestamp|locked)$/) {
1.159     albertel 1487: 	    $result.= &Apache::loncommon::start_data_table_row();
1.148     albertel 1488: 	    my ($end_time,$slot_text);
                   1489: 	    if (my $slot=&slotted_access($queue{$key})) {
                   1490: 		my %slot_data=&Apache::lonnet::get_slot($slot);
                   1491: 		$end_time = $slot_data{'endtime'};
                   1492: 		$slot_text = &mt('Slot: [_1]',$slot);
                   1493: 	    } else {
                   1494: 		$end_time = &Apache::lonhomework::due_date('0',$symb);
                   1495: 		$slot_text = '';
                   1496: 	    }
1.32      albertel 1497: 	    if ($with_selects) {
1.158     www      1498: 		my $ekey=&escape($key);
1.103     albertel 1499: 		my ($action,$description,$status)=('select',&mt('Select'));
1.32      albertel 1500: 		if (exists($queue{"$key\0locked"})) {
1.138     albertel 1501: 		    my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.103     albertel 1502: 		    $status=&mt('Locked by <tt>[_1]</tt>',$queue{"$key\0locked"});
1.32      albertel 1503: 		    if ($me eq $queue{"$key\0locked"}) {
                   1504: 			($action,$description)=('resume',&mt('Resume'));
                   1505: 		    } else {
                   1506: 			($action,$description)=('unlock',&mt('Unlock'));
                   1507: 		    }
                   1508: 		}
1.62      albertel 1509: 		my $seclist;
                   1510: 		foreach my $sec (@chosen_sections) {
                   1511: 		    $seclist.='<input type="hidden" name="chosensections" 
                   1512:                                value="'.$sec.'" />';
                   1513: 		}
1.156     albertel 1514: 		if ($can_view && ($end_time ne '' && time > $end_time)) {
1.35      albertel 1515: 		    $result.=(<<FORM);
1.103     albertel 1516: <td>$status</td>
1.32      albertel 1517: <td>
1.115     albertel 1518: <form style="display: inline" method="post">
1.32      albertel 1519:  <input type="hidden" name="gradingkey" value="$ekey" />
                   1520:  <input type="hidden" name="queue" value="$queue" />
                   1521:  <input type="hidden" name="gradingaction" value="$action" />
                   1522:  <input type="hidden" name="webgrade" value="no" />
1.33      albertel 1523:  <input type="hidden" name="queuemode" value="selected" />
1.32      albertel 1524:  <input type="submit" name="submit" value="$description" />
1.62      albertel 1525:  $seclist
1.32      albertel 1526: </form>
                   1527: </td>
                   1528: FORM
1.156     albertel 1529:                 } elsif (!$can_view && ($end_time ne '' && time > $end_time)) {
                   1530: 		    $result.='<td>'.&mt("Not gradable").'</td><td>&nbsp;</td>'
1.35      albertel 1531:                 } else {
1.148     albertel 1532: 		    $result.='<td>'.&mt("In Progress").'</td><td>&nbsp;</td>'
1.35      albertel 1533: 		}
1.32      albertel 1534: 	    }
1.156     albertel 1535: 	    $result.= "<td>".$classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_FULLNAME()].
1.138     albertel 1536: 		" <tt>($uname:$udom)</tt> </td>";
1.148     albertel 1537: 	    $result.='<td>'.$slot_text.' End time: '.
                   1538: 		&Apache::lonlocal::locallocaltime($end_time).
1.159     albertel 1539: 		"</td>".&Apache::loncommon::end_data_table_row();
1.16      albertel 1540: 	}
1.14      albertel 1541:     }
1.159     albertel 1542:     $result.= &Apache::loncommon::end_data_table()."<hr />\n";
1.14      albertel 1543:     return $result;
                   1544: }
                   1545: 
1.34      albertel 1546: sub get_queue_counts {
                   1547:     my ($queue)=@_;
                   1548:     my $result;
                   1549:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1550:     my $cnum=$env{'course.'.$cid.'.num'};
                   1551:     my $cdom=$env{'course.'.$cid.'.domain'};
1.156     albertel 1552: 
1.157     albertel 1553:     my $classlist=&get_limited_classlist();
1.156     albertel 1554: 
1.34      albertel 1555:     my $regexp="^$symb\0";
                   1556:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1557:     my ($tmp)=%queue;
                   1558:     if ($tmp=~/^error: 2 /) {
                   1559: 	return (0,0,0);
                   1560:     }
                   1561:     my ($entries,$ready_to_grade,$locks)=(0,0,0);
1.96      albertel 1562:     my %slot_cache;
1.34      albertel 1563:     foreach my $key (sort(keys(%queue))) {
1.156     albertel 1564: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
                   1565: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
                   1566: 
1.34      albertel 1567: 	if ($key=~/locked$/) {
                   1568: 	    $locks++;
                   1569: 	} elsif ($key=~/timestamp$/) {
                   1570: 	    #ignore
                   1571: 	} elsif ($key!~/(timestamp|locked)$/) {
                   1572: 	    $entries++;
1.148     albertel 1573: 	    if (my $slot=&slotted_access($queue{$key})) {
                   1574: 		if (!exists($slot_cache{$slot})) {
                   1575: 		    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1576: 		    $slot_cache{$slot} = \%slot_data;
                   1577: 		}
                   1578: 		if (time > $slot_cache{$slot}{'endtime'}) {
                   1579: 		    $ready_to_grade++;
                   1580: 		}
                   1581: 	    } else {
                   1582: 		my $due_date = &Apache::lonhomework::due_date('0',$symb);
                   1583: 		if ($due_date ne '' && time > $due_date) {
                   1584: 		    $ready_to_grade++;
                   1585: 		}
1.34      albertel 1586: 	    }
                   1587: 	}
                   1588:     }
                   1589:     return ($entries,$ready_to_grade,$locks);
                   1590: }
                   1591: 
1.49      albertel 1592: sub encode_queue_key {
                   1593:     my ($symb,$udom,$uname)=@_;
1.138     albertel 1594:     return "$symb\0queue\0$uname:$udom";
1.49      albertel 1595: }
                   1596: 
1.14      albertel 1597: sub decode_queue_key {
                   1598:     my ($key)=@_;
                   1599:     my ($symb,undef,$user) = split("\0",$key);
1.138     albertel 1600:     my ($uname,$udom) = split(':',$user);
1.14      albertel 1601:     return ($symb,$uname,$udom);
                   1602: }
                   1603: 
                   1604: sub queue_key_locked {
1.30      albertel 1605:     my ($queue,$key,$cdom,$cnum)=@_;
1.33      albertel 1606:     if (!defined($cdom) || !defined($cnum)) {
                   1607: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1608: 	$cnum=$env{'course.'.$cid.'.num'};
                   1609: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1610:     }
1.14      albertel 1611:     my ($key_locked,$value)=
1.30      albertel 1612: 	&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1.14      albertel 1613:     if ($key_locked eq "$key\0locked") {
                   1614: 	return $value;
                   1615:     }
                   1616:     return undef;
                   1617: }
                   1618: 
1.148     albertel 1619: sub slotted_access {
                   1620:     my ($queue_entry) = @_;
                   1621:     if (ref($queue_entry) eq 'ARRAY') {
                   1622: 	if (defined($queue_entry->[0])) {
                   1623: 	    return $queue_entry->[0];
                   1624: 	}
                   1625: 	return undef;
                   1626:     } elsif (ref($queue_entry) eq 'HASH') {
                   1627: 	if (defined($queue_entry->{'slot'})) {
                   1628: 	    return $queue_entry->{'slot'};
                   1629: 	}
                   1630: 	return undef;
                   1631:     }
                   1632:     return undef;
                   1633: }
                   1634: 
1.14      albertel 1635: sub pick_from_queue_data {
1.156     albertel 1636:     my ($queue,$check_section,$queuedata,$cdom,$cnum,$classlist)=@_;
1.98      albertel 1637:     my @possible; # will hold queue entries that are valid to be selected
1.30      albertel 1638:     foreach my $key (keys(%$queuedata)) {
1.68      albertel 1639: 	if ($key =~ /\0locked$/) { next; }
                   1640: 	if ($key =~ /\0timestamp$/) { next; }
1.156     albertel 1641: 
1.14      albertel 1642: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
1.156     albertel 1643: 	if (!defined($classlist->{$uname.':'.$udom})) { next; }
                   1644: 
1.14      albertel 1645: 	if ($check_section) {
1.156     albertel 1646: 	    my $section =
                   1647: 		$classlist->{$uname.':'.$udom}[&Apache::loncoursedata::CL_SECTION()];
1.17      albertel 1648: 	    if ($section eq $check_section) {
1.33      albertel 1649: 		&Apache::lonxml::debug("my sec");
1.15      albertel 1650: 		next;
                   1651: 	    }
1.14      albertel 1652: 	}
1.148     albertel 1653: 	my $end_time;
                   1654: 	if (my $slot=&slotted_access($queuedata->{$key})) {
1.154     albertel 1655: 	    &Apache::lonxml::debug("looking at slot $slot");
1.148     albertel 1656: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
                   1657: 	    if ($slot_data{'endtime'} < time) { 
                   1658: 		$end_time = $slot_data{'endtime'};
1.154     albertel 1659: 	    } else {
                   1660: 		&Apache::lonxml::debug("not time ".$slot_data{'endtime'});
                   1661: 		next;
1.148     albertel 1662: 	    }
                   1663: 	} else {
                   1664: 	    my $due_date = &Apache::lonhomework::due_date('0',$symb);
1.154     albertel 1665: 	    if ($due_date < time) {
1.148     albertel 1666: 		$end_time = $due_date;
1.154     albertel 1667: 	    } else {
                   1668: 		&Apache::lonxml::debug("not time $due_date");
                   1669: 		next;
1.148     albertel 1670: 	    }
                   1671: 	}
                   1672: 	
1.98      albertel 1673: 	if (exists($queuedata->{"$key\0locked"})) {
1.33      albertel 1674: 	    &Apache::lonxml::debug("someone already has um.");
1.15      albertel 1675: 	    next;
                   1676: 	}
1.148     albertel 1677: 	push(@possible,[$key,$end_time]);
1.98      albertel 1678:     }
                   1679:     if (@possible) {
                   1680:         # sort entries in order by slot end time
                   1681: 	@possible = sort { $a->[1] <=> $b->[1] } @possible;
1.137     albertel 1682: 	# pick one of the entries in the top 10% in small queues and one
                   1683: 	# of the first ten entries in large queues
1.139     albertel 1684: 	#my $ten_percent = int($#possible * 0.1);
                   1685: 	#if ($ten_percent < 1 ) { $ten_percent = 1;  }
                   1686: 	#if ($ten_percent > 10) { $ten_percent = 10; }
                   1687: 	#my $max=($#possible < $ten_percent) ? $#possible : $ten_percent;
1.137     albertel 1688: 	
1.139     albertel 1689: 	#return $possible[int(rand($max))][0];
                   1690: 	return $possible[0][0];
1.14      albertel 1691:     }
                   1692:     return undef;
                   1693: }
                   1694: 
1.15      albertel 1695: sub find_mid_grade {
1.30      albertel 1696:     my ($queue,$symb,$cdom,$cnum)=@_;
1.158     www      1697:     my $todo=&unescape($env{'form.gradingkey'});
1.138     albertel 1698:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.15      albertel 1699:     if ($todo) {
1.30      albertel 1700: 	my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1.15      albertel 1701: 	if ($who eq $me) { return $todo; }
                   1702:     }
                   1703:     my $regexp="^$symb\0.*\0locked\$";
1.30      albertel 1704:     my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.15      albertel 1705:     foreach my $key (keys(%locks)) {
                   1706: 	my $who=$locks{$key};
                   1707: 	if ($who eq $me) {
                   1708: 	    $todo=$key;
                   1709: 	    $todo=~s/\0locked$//;
                   1710: 	    return $todo;
                   1711: 	}
                   1712:     }
                   1713:     return undef;
                   1714: }
                   1715: 
1.32      albertel 1716: sub lock_key {
                   1717:     my ($queue,$todo)=@_;
1.138     albertel 1718:     my $me=$env{'user.name'}.':'.$env{'user.domain'};
1.32      albertel 1719:     my (undef,$cid)=&Apache::lonxml::whichuser();
                   1720:     my $cnum=$env{'course.'.$cid.'.num'};
                   1721:     my $cdom=$env{'course.'.$cid.'.domain'};
                   1722:     my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
                   1723: 					$cdom,$cnum);
1.33      albertel 1724:     &Apache::lonxml::debug("success $success $todo");
1.32      albertel 1725:     if ($success eq 'ok') {
                   1726: 	return 1;
                   1727:     }
                   1728:     return 0;
                   1729: }
                   1730: 
1.86      albertel 1731: sub get_queue_symb_status {
1.85      albertel 1732:     my ($queue,$symb,$cdom,$cnum) = @_;
                   1733:     if (!defined($cdom) || !defined($cnum)) {
                   1734: 	my (undef,$cid)=&Apache::lonxml::whichuser();
                   1735: 	$cnum=$env{'course.'.$cid.'.num'};
                   1736: 	$cdom=$env{'course.'.$cid.'.domain'};
                   1737:     }
1.157     albertel 1738:     my $classlist=&get_limited_classlist();
1.156     albertel 1739: 
1.85      albertel 1740:     my $regexp="^$symb\0";
                   1741:     my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
                   1742:     my ($tmp)=%queue;
                   1743:     if ($tmp=~/^error: 2 /) { return; }
                   1744:     my @users;
                   1745:     foreach my $key (sort(keys(%queue))) {
                   1746: 	next if ($key=~/locked$/);
                   1747: 	next if ($key=~/timestamp$/);
                   1748: 	my ($symb,$uname,$udom) = &decode_queue_key($key);
1.156     albertel 1749: 	next if (!defined($classlist->{$uname.':'.$udom}));
1.85      albertel 1750: 	push(@users,"$uname:$udom");
                   1751:     }
                   1752:     return @users;
                   1753: }
                   1754: 
1.14      albertel 1755: sub get_from_queue {
1.30      albertel 1756:     my ($queue)=@_;
1.14      albertel 1757:     my $result;
                   1758:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                   1759:     my $cnum=$env{'course.'.$cid.'.num'};
                   1760:     my $cdom=$env{'course.'.$cid.'.domain'};
1.32      albertel 1761:     my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1.33      albertel 1762:     &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1.16      albertel 1763:     if ($todo) { return $todo; }
1.95      albertel 1764:     my $attempts=0;
1.156     albertel 1765: 
1.157     albertel 1766:     my $classlist=&get_limited_classlist();
1.156     albertel 1767: 
1.14      albertel 1768:     while (1) {
1.95      albertel 1769: 	if ($attempts > 2) {
                   1770: 	    # tried twice to get a queue entry, giving up
                   1771: 	    return (undef,'unable');
                   1772: 	}
1.14      albertel 1773: 	my $starttime=time;
1.83      albertel 1774: 	&Apache::lonnet::cput($queue,{"$symb\0timestamp"=>$starttime},
                   1775: 			      $cdom,$cnum);
1.33      albertel 1776: 	&Apache::lonxml::debug("$starttime");
1.14      albertel 1777: 	my $regexp="^$symb\0queue\0";
1.156     albertel 1778: 	#my $range= ($attempts < 1 ) ? '0-100' : '0-400';
1.97      albertel 1779: 
1.98      albertel 1780: 	my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1.33      albertel 1781: 	#make a pass looking for a user _not_ in my section
1.14      albertel 1782: 	if ($env{'request.course.sec'}) {
1.33      albertel 1783: 	    &Apache::lonxml::debug("sce");
1.30      albertel 1784: 	    $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
1.156     albertel 1785: 					\%queue,$cdom,$cnum,$classlist);
1.33      albertel 1786: 	    &Apache::lonxml::debug("sce $todo");
1.14      albertel 1787: 	}
1.33      albertel 1788: 	# no one _not_ in our section so look for any user that is
                   1789: 	# ready for grading
1.14      albertel 1790: 	if (!$todo) {
1.33      albertel 1791: 	    &Apache::lonxml::debug("no sce");
1.156     albertel 1792: 	    $todo=&pick_from_queue_data($queue,undef,\%queue,$cdom,$cnum,
                   1793: 					$classlist);
1.33      albertel 1794: 	    &Apache::lonxml::debug("no sce $todo");
1.14      albertel 1795: 	}
                   1796: 	# no user to grade 
                   1797: 	if (!$todo) { last; }
1.33      albertel 1798: 	&Apache::lonxml::debug("got $todo");
1.14      albertel 1799: 	# otherwise found someone so lets try to lock them
1.32      albertel 1800: 	# unless someone else already picked them
1.95      albertel 1801: 	if (!&lock_key($queue,$todo)) {
                   1802: 	    $attempts++;
                   1803: 	    next;
                   1804: 	}
1.14      albertel 1805: 	my (undef,$endtime)=
1.30      albertel 1806: 	    &Apache::lonnet::get($queue,["$symb\0timestamp"],
1.14      albertel 1807: 				 $cdom,$cnum);
1.33      albertel 1808: 	&Apache::lonxml::debug("emd  $endtime");
1.14      albertel 1809: 	# someone else already modified the queue, 
                   1810: 	# perhaps our picked user wass already fully graded between
                   1811: 	# when we picked him and when we locked his record? so lets
                   1812: 	# double check.
                   1813: 	if ($endtime != $starttime) {
                   1814: 	    my ($key,$value)=
1.30      albertel 1815: 		&Apache::lonnet::get($queue,["$todo"],
1.14      albertel 1816: 				     $cdom,$cnum);
1.33      albertel 1817: 	    &Apache::lonxml::debug("check  $key .. $value");
1.14      albertel 1818: 	    if ($key eq $todo && ref($value)) {
                   1819: 	    } else {
1.30      albertel 1820: 		&Apache::lonnet::del($queue,["$todo\0locked"],
1.14      albertel 1821: 				     $cdom,$cnum);
1.33      albertel 1822: 		&Apache::lonxml::debug("del");
1.95      albertel 1823: 		$attempts++;
1.14      albertel 1824: 		next;
                   1825: 	    }
                   1826: 	}
1.33      albertel 1827: 	&Apache::lonxml::debug("last $todo");
1.14      albertel 1828: 	last;
                   1829:     }
                   1830:     return $todo;
                   1831: }
                   1832: 
1.49      albertel 1833: sub select_user {
                   1834:     my ($symb,$cid)=&Apache::lonxml::whichuser();
                   1835: 
1.59      albertel 1836:     my @chosen_sections=
                   1837: 	&Apache::loncommon::get_env_multiple('form.chosensections');
1.156     albertel 1838: 
                   1839:     my $classlist = &get_limited_classlist(\@chosen_sections);
1.63      albertel 1840:     
                   1841:     my $result;
                   1842:     if (!(grep(/^all$/,@chosen_sections))) {
                   1843: 	$result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
                   1844: 	    '</tt>.</p> '."\n";
                   1845:     }
1.159     albertel 1846:     $result.=&Apache::loncommon::start_data_table();
1.49      albertel 1847: 
1.156     albertel 1848:     foreach my $student (sort {lc($classlist->{$a}[&Apache::loncoursedata::CL_FULLNAME()]) cmp lc($classlist->{$b}[&Apache::loncoursedata::CL_FULLNAME()]) } (keys(%$classlist))) {
1.49      albertel 1849: 	my ($uname,$udom) = split(/:/,$student);
1.59      albertel 1850: 	
1.84      albertel 1851: 	my $cnum=$env{'course.'.$cid.'.num'};
                   1852: 	my $cdom=$env{'course.'.$cid.'.domain'};
1.88      albertel 1853: 	my %status = &get_student_status($symb,$cdom,$cnum,$udom,$uname,
                   1854: 					 'Task');
1.49      albertel 1855: 	my $queue = 'none';
1.58      albertel 1856: 	my $cannot_grade;
                   1857: 	if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1858: 	    $queue = 'reviewqueue';
1.58      albertel 1859: 	    if ($status{'reviewqueue'} eq 'in_progress') {
                   1860: 		$cannot_grade=1;
                   1861: 	    }
                   1862: 	} elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1.49      albertel 1863: 	    $queue = 'gradingqueue';
1.58      albertel 1864: 	    if ($status{'gradingqueue'} eq 'in_progress') {
                   1865: 		$cannot_grade=1;
                   1866: 	    }
1.49      albertel 1867: 	}
                   1868: 	my $todo = 
1.158     www      1869: 	    &escape(&encode_queue_key($symb,$udom,$uname));
1.58      albertel 1870: 	if ($cannot_grade) {
1.159     albertel 1871: 	    $result.=&Apache::loncommon::start_data_table_row().
                   1872: 		'<td>&nbsp;</td><td>'.$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()].
1.58      albertel 1873: 		'</td><td>';
                   1874: 	} else {
1.62      albertel 1875: 	    my $seclist;
                   1876: 	    foreach my $sec (@chosen_sections) {
                   1877: 		$seclist.='<input type="hidden" name="chosensections" 
                   1878:                                value="'.$sec.'" />';
                   1879: 	    }
1.159     albertel 1880: 	    $result.=&Apache::loncommon::start_data_table_row();
1.58      albertel 1881: 	    $result.=<<RESULT;
1.49      albertel 1882:   <td>
1.115     albertel 1883:     <form style="display: inline" method="post">
1.49      albertel 1884:       <input type="hidden" name="gradingkey" value="$todo" />
                   1885:       <input type="hidden" name="queue" value="$queue" />
                   1886:       <input type="hidden" name="webgrade" value="no" />
1.52      albertel 1887:       <input type="hidden" name="regrade" value="yes" />
1.62      albertel 1888:       <input type="submit" name="submit" value="Regrade" />
                   1889:       $seclist
1.49      albertel 1890:     </form>
1.155     albertel 1891:   <td>$classlist->{$student}[&Apache::loncoursedata::CL_FULLNAME()] <tt>($student)</tt></td>
1.49      albertel 1892:   <td>
                   1893: RESULT
1.58      albertel 1894:         }
1.49      albertel 1895:         if ($status{'status'} eq 'pass') {
                   1896: 	    $result .= '<font color="green">'.&mt('Passed').'</font>';
                   1897: 	} elsif ($status{'status'} eq 'fail') {
                   1898: 	    $result .= '<font color="red">'.&mt('Failed').'</font>';
                   1899: 	} elsif ($status{'status'} eq 'review') {
                   1900: 	    $result .= '<font color="blue">'.&mt('Under Review').'</font>';
                   1901: 	} elsif ($status{'status'} eq 'ungraded') {
                   1902: 	    $result .= &mt('Ungraded');
                   1903: 	} elsif ($status{'status'} ne '') {
                   1904: 	    $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
                   1905: 	} else {
                   1906: 	    $result.="&nbsp;";
                   1907: 	}
                   1908: 	if ($status{'version'}) {
                   1909: 	    $result .= ' '.&mt('Version').' '.$status{'version'};
                   1910: 	}
1.101     albertel 1911: 	if ($status{'grader'}) {
                   1912: 	    $result .= ' '.&mt('(Graded by [_1])',$status{'grader'}).' ';
                   1913: 	}
1.49      albertel 1914: 	$result.= '</td><td>';
                   1915: 	if ($status{'reviewqueue'} eq 'enqueued') {
                   1916: 	    $result .= &mt('Awaiting Review');
                   1917: 	} elsif ($status{'reviewqueue'} eq 'locked') {
                   1918: 	    $result .= &mt('Under Review');
1.58      albertel 1919: 	} elsif ($status{'reviewqueue'} eq 'in_progress') {
                   1920: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1921: 	} elsif ($status{'gradingqueue'} eq 'enqueued') {
                   1922: 	    $result .= &mt('Awaiting Grading');
                   1923: 	} elsif ($status{'gradingqueue'} eq 'locked') {
                   1924: 	    $result .= &mt('Being Graded');
1.58      albertel 1925: 	} elsif ($status{'gradingqueue'} eq 'in_progress') {
                   1926: 	    $result .= &mt('Still being worked on.');
1.49      albertel 1927: 	} else {
                   1928: 	    $result.="&nbsp;";
                   1929: 	}
1.159     albertel 1930: 	$result.= '</td>'.&Apache::loncommon::end_data_table_row();
1.49      albertel 1931:     }
1.159     albertel 1932:     $result.=&Apache::loncommon::end_data_table();
1.49      albertel 1933:     return $result;
                   1934: }
                   1935: 
                   1936: sub get_student_status {
1.86      albertel 1937:     my ($symb,$cdom,$cnum,$udom,$uname,$type)=@_;
                   1938: 
                   1939:     my %status;
                   1940: 
                   1941:     if ($type eq 'Task') {
                   1942: 	my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
1.49      albertel 1943: 					  $udom,$uname);
1.89      albertel 1944: 	$status{'status'}=$record{'resource.0.status'};
                   1945: 	$status{'version'}=$record{'resource.0.version'};
                   1946: 	$status{'grader'}=$record{'resource.0.regrader'};
1.86      albertel 1947:     }
                   1948:     $status{'reviewqueue'}=
                   1949: 	&check_queue_for_key($cdom,$cnum,'reviewqueue',
                   1950: 			     &encode_queue_key($symb,$udom,$uname));
                   1951:     $status{'gradingqueue'}=
                   1952: 	&check_queue_for_key($cdom,$cnum,'gradingqueue',
                   1953: 			     &encode_queue_key($symb,$udom,$uname));
1.49      albertel 1954:     return %status;
                   1955: }
                   1956: 
1.1       albertel 1957: sub start_ClosingParagraph {
                   1958:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1959:     my $result;
                   1960:     if ($target eq 'web') {
1.13      albertel 1961:     } elsif ($target eq 'webgrade') {
                   1962: 	&Apache::lonxml::startredirection();
1.1       albertel 1963:     }
                   1964:     return $result;
                   1965: }
                   1966: 
                   1967: sub end_ClosingParagraph {
                   1968:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   1969:     my $result;
                   1970:     if ($target eq 'web') {
1.13      albertel 1971:     } elsif ($target eq 'webgrade') {
                   1972: 	&Apache::lonxml::endredirection();
1.1       albertel 1973:     }
                   1974:     return $result;
                   1975: }
                   1976: 
1.168     albertel 1977: sub get_dim_id {
                   1978:     return $Apache::bridgetask::dimension[-1];
                   1979: }
                   1980: 
1.19      albertel 1981: sub get_id {
                   1982:     my ($parstack,$safeeval)=@_;
                   1983:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                   1984:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                   1985:     return $id;
                   1986: }
                   1987: 
1.162     albertel 1988: sub start_Setup {
                   1989:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.168     albertel 1990:     #undef(%dimension);
                   1991:     my $dim = &get_id($parstack,$safeeval);
                   1992:     push(@Apache::bridgetask::dimension,$dim);
1.162     albertel 1993:     &Apache::lonxml::startredirection();
1.168     albertel 1994:     return &internal_location($dim);
1.162     albertel 1995: }
1.173     albertel 1996: 
                   1997: {
                   1998:     my @allowed;
                   1999:     sub enable_dimension_parsing {
                   2000: 	my ($id) = @_;
                   2001: 	push(@allowed,$id);
                   2002:     }
                   2003:     sub disable_dimension_parsing {
                   2004: 	pop(@allowed);
                   2005:     }
                   2006:     sub skip_dimension_parsing {
                   2007: 	my ($check) = @_;
                   2008: 	if (!@allowed) { return 0;}
                   2009: 	# if unspecified allow any id
                   2010: 	if ($allowed[-1] eq undef) { return 0;}
                   2011: 
                   2012: 	return ($check ne $allowed[-1]);
                   2013:     }
                   2014: }
                   2015: 
1.151     albertel 2016: sub start_Question { return &start_Dimension(@_); }
1.1       albertel 2017: sub start_Dimension {
1.173     albertel 2018:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.168     albertel 2019:     my $dim = &get_id($parstack,$safeeval);
                   2020:     my $previous_dim;
                   2021:     if (@Apache::bridgetask::dimension) {
                   2022: 	$previous_dim = $Apache::bridgetask::dimension[-1];
                   2023: 	push(@{$Apache::bridgetask::dimension{$previous_dim}{'contains'}},
                   2024: 	     $dim);
1.173     albertel 2025: 	if(&skip_dimension_parsing($dim)) {
                   2026: 	    $dimension{$previous_dim}{'criteria.'.$dim} =
                   2027: 		$token->[4]
                   2028: 		.&Apache::lonxml::get_all_text('/'.$tagstack->[-1],$parser,
                   2029: 					      $style)
                   2030: 		.'</'.$tagstack->[-1].'>';
                   2031: 	}
1.169     albertel 2032: 	$dimension{$previous_dim}{'criteria.'.$dim.'.type'}='dimension';
                   2033: 	$dimension{$previous_dim}{'criteria.'.$dim.'.mandatory'}=
                   2034: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
                   2035: 	push(@{$dimension{$previous_dim}{'criterias'}},$dim);
1.171     albertel 2036: 	$dimension{$dim}{'nested'}=$previous_dim;
1.172     albertel 2037: 	&Apache::lonxml::debug("adding $dim as criteria to $previous_dim");
1.168     albertel 2038:     } else {
                   2039: 	$Apache::bridgetask::top_dimensionlist{$dim}{'manadatory'}=
                   2040: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
                   2041:     }
                   2042:     push(@Apache::bridgetask::dimension,$dim);
1.54      albertel 2043:     &Apache::lonxml::startredirection();
1.173     albertel 2044:     &enable_dimension_parsing($dim);
1.168     albertel 2045:     return &internal_location($dim);
1.1       albertel 2046: }
                   2047: 
1.160     albertel 2048: sub start_QuestionText {
                   2049:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.168     albertel 2050:     my $dim = &get_dim_id();
1.160     albertel 2051:     my $text=&Apache::lonxml::get_all_text('/questiontext',$parser,$style);
                   2052:     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
1.169     albertel 2053: 	$dimension{$dim}{'questiontext'}=$text;
1.160     albertel 2054:     }
                   2055:     return '';
                   2056: }
                   2057: 
                   2058: sub end_QuestionText {
                   2059:     return '';
                   2060: }
                   2061: 
1.13      albertel 2062: sub get_instance {
1.75      albertel 2063:     my ($dim)=@_;
                   2064:     my $rand_alg=&Apache::lonnet::get_rand_alg();
                   2065:     if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
                   2066: 	$rand_alg eq '64bit2' || $rand_alg eq '64bit3' ||
                   2067: 	$rand_alg eq '64bit4' ) {
                   2068: 	&Apache::response::pushrandomnumber();
1.169     albertel 2069: 	my @order=&Math::Random::random_permutation(@{$dimension{$dim}{'instances'}});
1.75      albertel 2070: 	my $num=@order;
                   2071: 	my $version=&get_version();
                   2072: 	my $which=($version-1)%$num;
                   2073: 	return $order[$which];
                   2074:     } else {
                   2075: 	my ($version,$previous) = &get_version();
                   2076: 	my $instance = 
                   2077: 	    $Apache::lonhomework::history{"resource.$version.0.$dim.instance"};
                   2078: 	if (defined($instance)) { return $instance; }
                   2079: 
                   2080: 	&Apache::response::pushrandomnumber();
1.173     albertel 2081: 	if (ref($dimension{$dim}{'instances'}) eq 'ARRAY') {
                   2082: 	    my @instances = @{$dimension{$dim}{'instances'}};
                   2083: 	    # remove disabled instances
                   2084: 	    for (my $i=0; $i < $#instances; $i++) {
                   2085: 		if ($dimension{$dim}{$instances[$i].'.disabled'}) {
                   2086: 		    splice(@instances,$i,1);
                   2087: 		    $i--;
                   2088: 		}
                   2089: 	    }
                   2090: 	    @instances = &Math::Random::random_permutation(@instances);
                   2091: 	    $instance  = $instances[($version-1)%scalar(@instances)];
                   2092: 	    if ($version =~ /^\d$/) {
                   2093: 		$Apache::lonhomework::results{"resource.$version.0.$dim.instance"} = 
                   2094: 		    $instance;
                   2095: 		$Apache::lonhomework::results{'INTERNAL_store'} = 1; 
1.75      albertel 2096: 	    }
                   2097: 	}
                   2098: 	&Apache::response::poprandomnumber();
                   2099: 	return $instance;
                   2100:     }
1.13      albertel 2101: }
                   2102: 
1.169     albertel 2103: sub get_criteria {
                   2104:     my ($what,$version,$dim,$id) = @_;
                   2105:     my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
                   2106:     my $prefix = ($type eq 'criteria') ? "$dim.$id"
                   2107: 	                               : "$id";
                   2108:     my $entry = "resource.$version.0.$prefix.$what";
                   2109:     if (exists($Apache::lonhomework::results{$entry})) {
                   2110: 	return $Apache::lonhomework::results{$entry};
                   2111:     }
                   2112:     return $Apache::lonhomework::history{$entry};
                   2113: }
                   2114: 
1.18      albertel 2115: {
                   2116:     my $last_link;
1.122     albertel 2117:     sub link {
1.151     albertel 2118: 	my ($id) = @_;
                   2119: 	$id =~ s/\./_/g;
                   2120: 	return 'LC_GRADING_criteria_'.$id;
1.122     albertel 2121:     }
1.151     albertel 2122:     sub end_Question { return &end_Dimension(@_); }
1.18      albertel 2123:     sub end_Dimension {
                   2124: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.54      albertel 2125: 	my $result=&Apache::lonxml::endredirection();
1.25      albertel 2126: 	my $dim=&get_id($parstack,$safeeval);
1.173     albertel 2127: 	if (&skip_dimension_parsing($dim)) {
                   2128: 	    &disable_dimension_parsing($dim);
                   2129: 	    pop(@Apache::bridgetask::dimension);
                   2130: 	    return;
                   2131: 	}
1.75      albertel 2132: 	my $instance=&get_instance($dim);
1.25      albertel 2133: 	my $version=&get_version();
1.18      albertel 2134: 	if ($target eq 'web') {
1.173     albertel 2135: 	    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
1.76      albertel 2136: 	    my @instances = $instance;
                   2137: 	    if (&Apache::response::showallfoils()) {
1.169     albertel 2138: 		@instances = @{$dimension{$dim}{'instances'}};
1.76      albertel 2139: 	    }
1.160     albertel 2140: 	    my $shown_question_text;
1.76      albertel 2141: 	    foreach my $instance (@instances) {
1.173     albertel 2142: 		$result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
                   2143: 					 [@_]);
                   2144: 		$result .= &nested_parse(\$dimension{$dim}{'questiontext'},
                   2145: 					 [@_],{'set_dim_id' => undef});
1.169     albertel 2146: 		my $task_status = 
                   2147: 		    $Apache::lonhomework::history{"resource.$version.0.status"};
1.173     albertel 2148: 		if ($task_status ne 'pass' && $task_status ne 'fail') {
1.76      albertel 2149: 
1.173     albertel 2150: 		    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
                   2151: 				    @{$dimension{$dim}{'criterias'}}) {
                   2152: 			my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
                   2153: 			&Apache::lonxml::debug("$id is $type");
                   2154: 			if ($type eq 'dimension') {
                   2155: 			    $result.=
                   2156: 				&nested_parse(\$dimension{$dim}{'criteria.'.$id},
                   2157: 					      [@_],{'set_dim_id' => $id});
                   2158: 			}
                   2159: 		    }
                   2160: 		} else {
1.89      albertel 2161: 		    my $dim_status=$Apache::lonhomework::history{"resource.$version.0.$dim.status"};
1.76      albertel 2162: 		    my $mandatory='Mandatory';
                   2163: 		    if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
                   2164: 			$mandatory='Optional';
                   2165: 		    }
1.116     albertel 2166: 		    my $dim_info="<div class='LC_$dim_status LC_question_grade'>\n";
1.76      albertel 2167: 		    if ($dim_status eq 'pass') {
                   2168: 			$dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1.54      albertel 2169: 		    }
1.76      albertel 2170: 		    if ($dim_status eq 'fail') {
                   2171: 			$dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1.53      albertel 2172: 		    }
1.76      albertel 2173: 		    my $man_count=0;
                   2174: 		    my $man_passed=0;
                   2175: 		    my $opt_count=0;
                   2176: 		    my $opt_passed=0;
1.169     albertel 2177: 		    foreach my $id ( @{$dimension{$dim}{$instance.'.criterias'}},
                   2178: 				     @{$dimension{$dim}{'criterias'}} ) {
                   2179: 			my $status = &get_criteria('status',$version,$dim,$id);
                   2180: 			if ($dimension{$dim}{'criteria.'.$id.'.mandatory'} 
1.76      albertel 2181: 			    eq 'N') {
                   2182: 			    $opt_count++;
1.169     albertel 2183: 			    if ($status eq 'pass') { $opt_passed++; }
1.76      albertel 2184: 			} else {
                   2185: 			    $man_count++;
1.169     albertel 2186: 			    if ($status eq 'pass') { $man_passed++; }
1.76      albertel 2187: 			}
1.22      albertel 2188: 		    }
1.76      albertel 2189: 		    if ($man_passed eq $man_count) { $man_passed='all'; }
1.151     albertel 2190: 
1.169     albertel 2191: 		    my $opt_req=$dimension{$dim}{$instance.'.optionalrequired'};
1.151     albertel 2192: 		    if ($opt_req !~ /\S/) {
                   2193: 			$opt_req=
                   2194: 			    &Apache::lonxml::get_param('OptionalRequired',
                   2195: 						       $parstack,$safeeval);
                   2196: 			if ($opt_req !~ /\S/) { $opt_req = 0; }
                   2197: 		    }
1.76      albertel 2198: 		    $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
                   2199: 
                   2200: 		    my $internal_location=&internal_location($dim);
                   2201: 		    $result=~s/\Q$internal_location\E/$dim_info/;
                   2202: 
1.169     albertel 2203: 		    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
                   2204: 				    @{$dimension{$dim}{'criterias'}}) {
                   2205: 			my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
1.171     albertel 2206: 			if ($type eq 'dimension') {
                   2207: 			    $result.=$dimension{$id}{'result'};
                   2208: 			    next;
                   2209: 			}
1.169     albertel 2210: 			my $status= &get_criteria('status', $version,$dim,$id);
                   2211: 			my $comment=&get_criteria('comment',$version,$dim,$id);
                   2212: 			my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
1.76      albertel 2213: 			if ($mandatory) {
                   2214: 			    $mandatory='Mandatory';
                   2215: 			} else {
                   2216: 			    $mandatory='Optional';
                   2217: 			}
                   2218: 			if ($status eq 'fail') {
                   2219: 			} elsif ($status eq 'pass') {
                   2220: 			} else {
                   2221: 			    &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
                   2222: 			}
                   2223: 			my $status_display=$status;
                   2224: 			$status_display=~s/^([a-z])/uc($1)/e;
1.116     albertel 2225: 			$result.=
                   2226: 			    '<div class="LC_'.$status.' LC_criteria"><h4>'
                   2227: 			    .$mandatory.' Criteria</h4><p>';
1.173     albertel 2228: 			$result.=
                   2229: 			    &nested_parse(\$dimension{$dim}{'criteria.'.$id},
                   2230: 					  [@_],{'set_dim_id' => $id});
1.116     albertel 2231: 			$result.='</p><p class="LC_grade">'.$status_display.'</p>';
1.169     albertel 2232: 			if ($comment) {
                   2233: 			    $result.='<p class="LC_comment">'.
                   2234: 				&mt('Comment: [_1]',$comment).'</p>';
1.76      albertel 2235: 			}
                   2236: 			$result.='</div>';
1.22      albertel 2237: 		    }
                   2238: 		}
                   2239: 	    }
1.18      albertel 2240: 	} elsif ($target eq 'webgrade') {
1.47      albertel 2241: 	    # in case of any side effects that we need
1.173     albertel 2242: 	    &nested_parse(\$dimension{$dim}{'intro'},[@_]);
                   2243: 	    &nested_parse(\$dimension{$dim}{$instance.'.text'},[@_]);
                   2244: 	    $result.=
                   2245: 		&nested_parse(\$dimension{$dim}{'questiontext'},[@_],
1.180     albertel 2246: 			      {'set_dim_id'          => undef,
                   2247: 			       'delayed_dim_results' => 1});
1.169     albertel 2248: 	    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
                   2249: 			    @{$dimension{$dim}{'criterias'}} ) {
                   2250: 		my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
1.171     albertel 2251: 		if ($type eq 'dimension') {
                   2252: 		    # dimensional 'criteria' don't get assigned grades
1.173     albertel 2253: 		    $result.=
                   2254: 			&nested_parse(\$dimension{$dim}{'criteria.'.$id},
                   2255: 				      [@_],{'set_dim_id' => $id});
1.171     albertel 2256: 		    next;
                   2257: 		}
1.169     albertel 2258: 
1.151     albertel 2259: 		my $link=&link($id);
1.169     albertel 2260: 		my $status= &get_criteria('status',$version,$dim,$id);
1.120     albertel 2261: 		$result.='<div class="LC_GRADING_criteria" id="'.$link.'">'."\n".
1.136     albertel 2262: 		    '<div class="LC_GRADING_criteriatext" id="next_'.$last_link.'">'."\n";
1.173     albertel 2263: 		$result.=
                   2264: 		    &nested_parse(\$dimension{$dim}{'criteria.'.$id},[@_]);
                   2265: 
1.111     albertel 2266: 		$result.='</div>'."\n".
1.120     albertel 2267: 		    '<div class="LC_GRADING_grade">'."\n".
                   2268: 		    '<label class="LC_GRADING_ungraded"><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label>'."\n".
                   2269: 		    '<label class="LC_GRADING_fail"><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label>'."\n".
                   2270: 		    '<label class="LC_GRADING_pass"><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label>'."\n".
                   2271: 		    '<label class="LC_GRADING_review"><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label>'."\n".
1.111     albertel 2272: 		    '</div>'."\n".
1.120     albertel 2273: 		    '<label class="LC_GRADING_comment">'.&mt('Additional Comment for Student')."\n".
1.169     albertel 2274: 		    '<textarea class="LC_GRADING_comment_area" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode(&get_criteria('comment',$version,$dim,$id),'<>"&').'</textarea>'."\n".
1.111     albertel 2275: 		    '</label>'."\n".
1.120     albertel 2276: 		    '<ul class="LC_GRADING_navbuttons">'."\n".
1.111     albertel 2277: 		    '<li><a href="#'.$last_link.'">Prev</a></li>'."\n".
                   2278: 		    '<li><a href="#next_'.$link.'">Next</a></li>'."\n".
                   2279: 		    '</ul>'."\n".
                   2280:                     '</div>'."\n";
1.151     albertel 2281: 		$result.=&grading_history($version,$dim,$id);
1.18      albertel 2282: 		$last_link=$link;
                   2283: 	    }
1.180     albertel 2284: 	    if (&nest()) {
1.173     albertel 2285: 		&Apache::lonxml::debug(" for $dim stashing results into ".$dimension{$dim}{'nested'});
                   2286: 		$dimension{$dimension{$dim}{'nested'}}{'result'}.=$result;
1.171     albertel 2287: 		undef($result);
                   2288: 	    }
1.22      albertel 2289: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel 2290: 	    my $optional_passed=0;
1.20      albertel 2291: 	    my $mandatory_failed=0;
                   2292: 	    my $ungraded=0;
                   2293: 	    my $review=0;
1.153     albertel 2294: 
1.173     albertel 2295: 	    $result .= &nested_parse(\$dimension{$dim}{'intro'},[@_]);
                   2296: 	    $result .= &nested_parse(\$dimension{$dim}{$instance.'.text'},
                   2297: 				     [@_]);
                   2298: 	    $result .= &nested_parse(\$dimension{$dim}{'questiontext'},
                   2299: 				     [@_],{'set_dim_id' => undef});
1.160     albertel 2300: 
1.169     albertel 2301: 	    foreach my $id (@{$dimension{$dim}{$instance.'.criterias'}},
                   2302: 			    @{$dimension{$dim}{'criterias'}}) {
1.151     albertel 2303: 		my $link=&link($id);
1.169     albertel 2304: 
                   2305: 		my $type = $dimension{$dim}{'criteria.'.$id.'.type'};
                   2306: 		if ($type eq 'criteria') {
                   2307: 		    # dimensional 'criteria' don't get assigned grades
                   2308: 		    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.status"}=$env{'form.HWVAL_'.$link};
                   2309: 		    $Apache::lonhomework::results{"resource.$version.0.$dim.$id.comment"}=$env{'form.HWVAL_comment_'.$link};
1.173     albertel 2310: 		} else {
                   2311: 		    $result .=
                   2312: 			&nested_parse(\$dimension{$dim}{'criteria.'.$id},
                   2313: 				      [@_],{'set_dim_id' => $id});
1.169     albertel 2314: 		}
                   2315: 		my $status= &get_criteria('status',$version,$dim,$id);
                   2316: 
                   2317: 		my $mandatory=($dimension{$dim}{'criteria.'.$id.'.mandatory'} ne 'N');
1.20      albertel 2318: 		if ($status eq 'pass') {
                   2319: 		    if (!$mandatory) { $optional_passed++; }
                   2320: 		} elsif ($status eq 'fail') {
                   2321: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel 2322: 		} elsif ($status eq 'review') {
                   2323: 		    $review++;
1.20      albertel 2324: 		} elsif ($status eq 'ungraded') {
                   2325: 		    $ungraded++;
1.21      albertel 2326: 		} else {
1.47      albertel 2327: 		    $ungraded++;
1.19      albertel 2328: 		}
                   2329: 	    }
1.151     albertel 2330: 	    # FIXME optional required can apply to only <instance> right now...
1.169     albertel 2331: 	    my $opt_req=$dimension{$dim}{$instance.'.optionalrequired'};
1.151     albertel 2332: 	    if ($opt_req !~ /\S/) {
                   2333: 		$opt_req=
                   2334: 		    &Apache::lonxml::get_param('OptionalRequired',
                   2335: 					       $parstack,$safeeval);
                   2336: 		if ($opt_req !~ /\S/) { $opt_req = 0; }
                   2337: 	    }
                   2338: 	    if ($optional_passed < $opt_req) {
1.20      albertel 2339: 		$mandatory_failed++;
                   2340: 	    }
1.169     albertel 2341: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$dim}{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel 2342: 	    if ($review) {
1.89      albertel 2343: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 2344: 		    'review';
1.20      albertel 2345: 	    } elsif ($ungraded) {
1.89      albertel 2346: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 2347: 		    'ungraded';
1.20      albertel 2348: 	    } elsif ($mandatory_failed) {
1.89      albertel 2349: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 2350: 		    'fail';
1.20      albertel 2351: 	    } else {
1.91      albertel 2352: 		$Apache::lonhomework::results{"resource.$version.0.$dim.status"}=
1.22      albertel 2353: 		    'pass';
1.20      albertel 2354: 	    }
1.69      albertel 2355: 	} else {
                   2356: 	    # any other targets no output
                   2357: 	    undef($result);
1.13      albertel 2358: 	}
1.173     albertel 2359: 	&disable_dimension_parsing();
1.169     albertel 2360: 	pop(@Apache::bridgetask::dimension);
1.18      albertel 2361: 	return $result;
1.1       albertel 2362:     }
1.162     albertel 2363: 
                   2364:     sub end_Setup {
                   2365: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                   2366: 	my $result=&Apache::lonxml::endredirection();
                   2367: 	my $dim=&get_id($parstack,$safeeval);
                   2368: 	my $instance=&get_instance($dim);
                   2369: 	my $version=&get_version();
                   2370: 	if ($target eq 'web') {
                   2371: 	    @Apache::scripttag::parser_env = @_;
1.169     albertel 2372: 	    $result.=&Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
1.162     albertel 2373: 	    my @instances = $instance;
                   2374: 	    if (&Apache::response::showallfoils()) {
1.169     albertel 2375: 		@instances = @{$dimension{$dim}{'instances'}};
1.162     albertel 2376: 	    }
                   2377: 	    foreach my $instance (@instances) {
                   2378: 		@Apache::scripttag::parser_env = @_;
1.169     albertel 2379: 		$result.=&Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
1.162     albertel 2380: 		@Apache::scripttag::parser_env = @_;
1.169     albertel 2381: 		$result.=&Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
1.162     albertel 2382: 	    }
                   2383: 	} elsif ($target eq 'webgrade' 
                   2384: 		 || $target eq 'grade' && $env{'form.webgrade'}) {
                   2385: 	    # in case of any side effects that we need
                   2386: 	    @Apache::scripttag::parser_env = @_;
1.169     albertel 2387: 	    &Apache::scripttag::xmlparse($dimension{$dim}{'intro'});
1.162     albertel 2388: 	    @Apache::scripttag::parser_env = @_;
1.169     albertel 2389: 	    &Apache::scripttag::xmlparse($dimension{$dim}{$instance.'.text'});
1.162     albertel 2390: 	    @Apache::scripttag::parser_env = @_;
1.169     albertel 2391: 	    &Apache::scripttag::xmlparse($dimension{$dim}{'questiontext'});
1.162     albertel 2392: 	} else {
                   2393: 	    # any other targets no output
                   2394: 	    undef($result);
                   2395: 	}
1.169     albertel 2396: 	pop(@Apache::bridgetask::dimension);
1.162     albertel 2397: 	return $result;
                   2398:     }
1.1       albertel 2399: }
                   2400: 
1.113     albertel 2401: sub grading_history {
1.151     albertel 2402:     my ($version,$dim,$id) = @_;
1.113     albertel 2403:     if (!&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
                   2404: 	return '';
                   2405:     }
                   2406:     my ($result,$grader);
1.151     albertel 2407:     my $scope="resource.$version.0.$dim.$id";
1.113     albertel 2408:     foreach my $t (1..$Apache::lonhomework::history{'version'}) {
                   2409: 	if (exists($Apache::lonhomework::history{$t.':resource.0.regrader'})) {
                   2410: 	    my ($gname,$gdom) = 
1.138     albertel 2411: 		split(':',$Apache::lonhomework::history{$t.':resource.0.regrader'});
1.113     albertel 2412: 	    my $fullname = &Apache::loncommon::plainname($gname,$gdom);
                   2413: 	    $grader = &Apache::loncommon::aboutmewrapper($fullname,
                   2414: 							 $gname,$gdom);
                   2415: 	}
                   2416: 	my $entry;
                   2417: 	if (exists($Apache::lonhomework::history{"$t:$scope.status"})) {
                   2418: 	    $entry.="<tt>".$Apache::lonhomework::history{"$t:$scope.status"}.'</tt>';
                   2419: 	}
                   2420: 	if (exists($Apache::lonhomework::history{"$t:$scope.comment"})) {
                   2421: 	    $entry.=' comment: "'.$Apache::lonhomework::history{"$t:$scope.comment"}.'"';
                   2422: 	}
                   2423: 	if ($entry) {
                   2424: 	    $result.= "<li>$grader : $entry </li>";
                   2425: 	}
                   2426:     }
                   2427:     if ($result) {
1.120     albertel 2428: 	return '<ul class="LC_GRADING_pastgrading">'.$result.'</ul>';
1.113     albertel 2429:     }
                   2430:     return '';
                   2431: }
                   2432: 
1.1       albertel 2433: sub start_IntroParagraph {
1.87      albertel 2434:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.1       albertel 2435:     my $result;
1.168     albertel 2436:     my $dim = &get_dim_id();
1.153     albertel 2437:     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
1.151     albertel 2438: 	if ($tagstack->[-2] eq 'Dimension' || $tagstack->[-2] eq 'Question' ) {
1.169     albertel 2439: 	    $dimension{$dim}{'intro'}=
1.151     albertel 2440: 		&Apache::lonxml::get_all_text('/introparagraph',
                   2441: 					      $parser,$style);
                   2442:        	} elsif ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
1.127     albertel 2443: 	    &Apache::lonxml::startredirection();
1.1       albertel 2444: 	}
1.47      albertel 2445: 	
1.1       albertel 2446:     }
                   2447:     return $result;
                   2448: }
                   2449: 
                   2450: sub end_IntroParagraph {
1.127     albertel 2451:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.128     albertel 2452:     if ($tagstack->[-2] eq 'Task' && $target eq 'webgrade') {
1.127     albertel 2453: 	my $result = &Apache::lonxml::endredirection();
                   2454:     }
1.1       albertel 2455: }
                   2456: 
                   2457: sub start_Instance {
                   2458:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.168     albertel 2459:     my $dim = &get_dim_id();
                   2460:     my $id  = &get_id($parstack,$safeeval);
1.169     albertel 2461:     push(@{$dimension{$dim}{'instances'}},$id);
1.168     albertel 2462:     push(@{$Apache::bridgetask::instance{$dim}},$id);
1.19      albertel 2463:     push(@Apache::bridgetask::instancelist,$id);
1.169     albertel 2464:     $dimension{$dim}{$id.'.optionalrequired'}=
1.19      albertel 2465: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.75      albertel 2466:     my $disabled = &Apache::lonxml::get_param('Disabled',$parstack,$safeeval);
                   2467:     if (lc($disabled) eq 'yes') {
1.169     albertel 2468: 	$dimension{$dim}{$id.'.disabled'}='1';
1.75      albertel 2469:     }
1.1       albertel 2470:     return '';
                   2471: }
                   2472: 
                   2473: sub end_Instance {
                   2474: }
                   2475: 
                   2476: sub start_InstanceText {
1.87      albertel 2477:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.168     albertel 2478:     my $dim = &get_dim_id();
                   2479:     my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
1.87      albertel 2480:     my $text=&Apache::lonxml::get_all_text('/instancetext',$parser,$style);
1.153     albertel 2481:     if ($target eq 'grade' || $target eq 'web' || $target eq 'webgrade') {
1.169     albertel 2482: 	$dimension{$dim}{$instance_id.'.text'}=$text;
1.1       albertel 2483:     }
                   2484:     return '';
                   2485: }
                   2486: 
                   2487: sub end_InstanceText {
                   2488:     return '';
                   2489: }
                   2490: 
                   2491: sub start_Criteria {
1.87      albertel 2492:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
                   2493:     my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser,$style);
1.21      albertel 2494:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.168     albertel 2495: 	my $dim = &get_dim_id();
1.19      albertel 2496: 	my $id=&get_id($parstack,$safeeval);
1.169     albertel 2497: 	&Apache::lonxml::debug("Criteria $id with $dim");
1.151     albertel 2498: 	if (&Apache::londefdef::is_inside_of($tagstack,'Instance')) {
1.168     albertel 2499: 	    my $instance_id=$Apache::bridgetask::instance{$dim}[-1];
1.169     albertel 2500: 	    $dimension{$dim}{"criteria.$instance_id.$id"}=$criteria;
                   2501: 	    $dimension{$dim}{"criteria.$instance_id.$id.type"}='criteria';
                   2502: 	    $dimension{$dim}{"criteria.$instance_id.$id.mandatory"}=
1.151     albertel 2503: 		&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.169     albertel 2504: 	    push(@{$dimension{$dim}{$instance_id.'.criterias'}},"$instance_id.$id");
1.151     albertel 2505: 	} else {
1.169     albertel 2506: 	    $dimension{$dim}{'criteria.'.$id}=$criteria;
                   2507: 	    $dimension{$dim}{'criteria.'.$id.'.type'}='criteria';
                   2508: 	    $dimension{$dim}{'criteria.'.$id.'.mandatory'}=
1.151     albertel 2509: 		&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.169     albertel 2510: 	    push(@{$dimension{$dim}{'criterias'}},$id);
1.151     albertel 2511: 	}
1.1       albertel 2512:     }
                   2513:     return '';
                   2514: }
                   2515: 
1.47      albertel 2516: sub end_Criteria {
                   2517: }
                   2518: 
1.4       albertel 2519: sub proctor_validation_screen {
                   2520:     my ($slot) = @_;
                   2521:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel 2522:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.44      albertel 2523:     my $name=&Apache::loncommon::plainname($user,$domain);
                   2524:     
1.4       albertel 2525:     my $msg;
1.11      albertel 2526:     if ($env{'form.proctorpassword'}) {
1.4       albertel 2527: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                   2528: 	    .'</font></p>';
                   2529:     }
1.47      albertel 2530:     if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1.4       albertel 2531:     my $result= (<<ENDCHECKOUT);
                   2532: <h2>Proctor Validation</h2>
                   2533:     <p>Your room's proctor needs to validate your access to this resource.</p>
                   2534:     $msg
1.115     albertel 2535: <form name="checkout" method="post" action="$env{'request.uri'}">
1.4       albertel 2536: <input type="hidden" name="validate" value="yes" />
                   2537: <input type="hidden" name="submitted" value="yes" />
                   2538: <table>
1.44      albertel 2539:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1.4       albertel 2540:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.46      albertel 2541:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1.4       albertel 2542: </table>
                   2543: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
1.44      albertel 2544: <table border="1">
                   2545:   <tr><td>
                   2546:     <table>
                   2547:       <tr><td colspan="2">Student who should be logged in is:</td></tr>
                   2548:       <tr><td>Name:</td><td>$name</td></tr>
1.45      albertel 2549:       <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1.138     albertel 2550:       <tr><td>Usename</td><td>$user:$domain</td></tr>
1.44      albertel 2551:       <tr><td colspan="2"><img src="$url" /></td></tr>
                   2552:     </table>
                   2553:   </tr></td>
                   2554: </table>
1.4       albertel 2555: </form>
                   2556: ENDCHECKOUT
                   2557:     return $result;
                   2558: }
                   2559: 
1.1       albertel 2560: 1;
                   2561: __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>