1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.28 2005/05/20 18:53:53 albertel Exp $
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;
39: use Time::HiRes qw( gettimeofday tv_interval );
40:
41: BEGIN {
42: &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
43: }
44:
45: sub initialize_bridgetask {
46: # id of current Dimension, 0 means that no dimension is current
47: # (inside <Task> only)
48: $Apache::bridgetask::dimension='';
49: # list of all Dimension ids seen
50: @Apache::bridgetask::dimensionlist=();
51: # mandatory attribute of all Dimensions seen
52: %Apache::bridgetask::dimensionmandatory=();
53: # list of all current Instance ids
54: @Apache::bridgetask::instance=();
55: # list of all Instance ids seen in this problem
56: @Apache::bridgetask::instancelist=();
57: # key of queud user data that we are currently grading
58: $Apache::bridgetask::queue_key='';
59: }
60:
61: sub proctor_check_auth {
62: my ($slot_name,$slot)=@_;
63: my $user=$env{'form.proctorname'};
64: my $domain=$env{'form.proctordomain'};
65:
66: my @allowed=split(",",$slot->{'proctor'});
67: foreach my $possible (@allowed) {
68: my ($puser,$pdom)=(split('@',$possible));
69: if ($puser eq $user && $pdom eq $domain) {
70: my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
71: if ($authhost ne 'no_host') {
72: my $version=
73: $Apache::lonhomework::results{'resource.version'}=
74: ++$Apache::lonhomework::history{'resource.version'};
75: $Apache::lonhomework::results{"resource.$version.checkedin"}=
76: $user.'@'.$domain;
77: $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
78: $slot_name;
79: foreach my $key (keys(%Apache::lonhomework::history)) {
80: if ($key=~/^resource\.0\./) {
81: $Apache::lonhomework::results{$key}='';
82: }
83: }
84: return 1;
85: }
86: }
87: }
88: return 0;
89: }
90:
91: sub get_version {
92: if ($env{'form.previousversion'} &&
93: defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
94: return $env{'form.previousversion'};
95: }
96: return $Apache::lonhomework::history{'resource.version'};
97: }
98:
99: sub add_previous_version_button {
100: my ($status)=@_;
101: my $result;
102: if ($Apache::lonhomework::history{'resource.version'} eq '0') {
103: return '';
104: }
105: my $version=&get_version();
106: if ($version ne $Apache::lonhomework::history{'resource.version'}) {
107: return '';
108: }
109:
110: $result.=&mt(' Show a previously done version: [_1]','<select name="previousversion">
111: <option>Pick one</option>
112: </select>');
113: return $result;
114: }
115:
116: sub add_grading_button {
117: my $result;
118: $result.=' <input type="submit" name="gradeasubmission" value="'.
119: &mt("Get a submission to grade").'" />';
120: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
121: return $result;
122: }
123:
124: sub add_request_another_attempt_button {
125: my $result;
126: $result.=' <input type="submit" name="requestattempt" value="'.
127: &mt("Request another attempt").'" />';
128: return $result;
129: }
130:
131: sub start_Task {
132: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
133:
134: my ($status,$accessmsg,$slot);
135: if ($target ne 'webgrade') {
136: &Apache::structuretags::initialize_storage();
137: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
138: }
139:
140: $Apache::lonhomework::parsing_a_task=1;
141: #should get back a <html> or the neccesary stuff to start XML/MathML
142: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
143: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
144:
145: if ($target eq 'web') {
146: if ($Apache::lonhomework::modifygrades) {
147: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
148: my $uri=$env{'request.uri'};
149: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
150: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
151: }
152: }
153: if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
154: $target eq 'tex') {
155: my $version=&get_version();
156: ($status,$accessmsg,my $slot_name,$slot) =
157: &Apache::lonhomework::check_task_access('0');
158: push(@Apache::inputtags::status,$status);
159: $Apache::inputtags::slot_name=$slot_name;
160: my $expression='$external::datestatus="'.$status.'";';
161: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
162: &Apache::run::run($expression,$safeeval);
163: &Apache::lonxml::debug("Got $status");
164: $body_tag_start.=&add_previous_version_button($status);
165: if (( $status eq 'CLOSED' ) ||
166: ( $status eq 'BANNED') ||
167: ( $status eq 'UNAVAILABLE') ||
168: ( $status eq 'NOT_IN_A_SLOT') ||
169: ( $status eq 'NEEDS_CHECKIN') ||
170: ( $status eq 'WAITING_FOR_GRADE') ||
171: ( $status eq 'INVALID_ACCESS')) {
172: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
173: if ( $target eq "web" ) {
174: $result.= $head_tag_start.'</head>'.$body_tag_start;
175: my $msg;
176: if ($status eq 'UNAVAILABLE') {
177: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
178: } elsif ($status eq 'NOT_IN_A_SLOT') {
179: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
180: } elsif ($status eq 'NEEDS_CHECKIN') {
181: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
182: '</h1>'.&proctor_validation_screen($slot);
183: } elsif ($status eq 'WAITING_FOR_GRADE') {
184: $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
185: } elsif ($status ne 'NOT_YET_VIEWED') {
186: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
187: }
188: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
189: $msg.='The problem '.$accessmsg;
190: }
191: $result.=$msg.'<br />';
192: } elsif ($target eq 'tex') {
193: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
194: if ($status eq 'UNAVAILABLE') {
195: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
196: } else {
197: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
198: }
199: } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
200: if ($status eq 'NEEDS_CHECKIN') {
201: if (&proctor_check_auth($slot_name,$slot)) {
202: #FIXME immeadiatly add this to the grading queue
203: # with slot->{'endtime'} for when grading can
204: # begin on this resource
205: # FIXME I think the above is done by default,
206: # need to check that
207: # failure doesn't do this.
208: }
209: }
210: }
211: } elsif ($target eq 'web') {
212: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
213: $result.="$head_tag_start<title>$name</title></head>
214: $body_tag_start \n $form_tag_start".
215: '<input type="hidden" name="submitted" value="yes" />';
216: # if we are viewing someone else preserve that info
217: if (defined $env{'form.grade_symb'}) {
218: foreach my $field ('symb','courseid','domain','username') {
219: $result .= '<input type="hidden" name="grade_'.$field.
220: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
221: }
222: }
223: my $version=&get_version();
224: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
225: $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
226: $result.=&add_request_another_attempt_button();
227: }
228: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
229: $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
230: }
231: }
232: } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
233: $target eq 'webgrade') {
234: if ($target eq 'webgrade') {
235: $result.=$head_tag_start.$body_tag_start.$form_tag_start;
236: $result.='<input type="hidden" name="webgrade" value="yes" />';
237: $result.=&show_queue();
238: }
239: my $todo=&get_from_queue();
240: if ($todo) {
241: &setup_env_for_other_user($todo,$safeeval);
242: my ($symb,$uname,$udom)=&decode_queue_key($todo);
243: $result.="\n".'<table><tr><td>Found '.
244: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
245: $result.='<input type="hidden" name="gradingkey" value="'.
246: &Apache::lonnet::escape($todo).'" />';
247: $Apache::bridgetask::queue_key=$todo;
248: &Apache::structuretags::initialize_storage();
249: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
250: $result.="\n".'<table width="100%" style="width:100%" border="1">';
251: } else {
252: if ($target eq 'webgrade') {
253: $result.="\n".
254: '<table><tr><td>No user to be graded.</td></tr></table>';
255: }
256: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
257: }
258: } else {
259: # page_start returned a starting result, delete it if we don't need it
260: $result = '';
261: }
262: return $result;
263: }
264:
265: sub end_Task {
266: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
267: my $result='';
268: my $status=$Apache::inputtags::status['-1'];
269: my $version=&get_version();
270: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
271: $target eq 'tex') {
272: if (
273: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
274: ($target eq 'answer') || ($target eq 'tex')
275: ) {
276: if ($target eq 'web') {
277: if ($status eq 'CAN_ANSWER') {
278: $result.="\n".'<table border="1">'.
279: &Apache::inputtags::file_selector("$version.0",
280: "bridgetask","*",
281: 'portfolioonly').
282: "</table>";
283: $result.=&Apache::inputtags::gradestatus('0');
284: }
285: }
286: if ($target eq 'web' || $target eq 'webgrade') {
287: $result.=&Apache::lonxml::xmlend().'</html>';
288: }
289: }
290: if ($target eq 'grade' && !$env{'form.webgrade'}) {
291: my $award='SUBMITTED';
292: &Apache::essayresponse::file_submission("$version.0",'bridgetask',
293: 'portfiles',\$award);
294: if ($award eq 'SUBMITTED' &&
295: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
296: $Apache::lonhomework::results{"resource.0.tries"}=
297: $Apache::lonhomework::results{"resource.$version.0.tries"}=
298: 1+$Apache::lonhomework::history{"resource.$version.0.tries"};
299:
300: $Apache::lonhomework::results{"resource.0.award"}=
301: $Apache::lonhomework::results{"resource.$version.0.award"}=
302: $award;
303: }
304: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
305: &Apache::structuretags::finalize_storage();
306: if ($award eq 'SUBMITTED') {
307: &add_to_queue();
308: }
309: }
310: if ($target eq 'grade' && $env{'form.webgrade'}) {
311: my $optional_required=
312: &Apache::lonxml::get_param('OptionalRequired',$parstack,
313: $safeeval);
314: my $optional_passed=0;
315: my $mandatory_failed=0;
316: my $ungraded=0;
317: my $review=0;
318: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
319: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
320: my $status=
321: $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
322: my $mandatory=
323: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
324: if ($status eq 'pass') {
325: if (!$mandatory) { $optional_passed++; }
326: } elsif ($status eq 'fail') {
327: if ($mandatory) { $mandatory_failed++; }
328: } elsif ($status eq 'ungraded') {
329: $ungraded++;
330: } elsif ($status eq 'review') {
331: $review++;
332: }
333: }
334: if ($optional_passed < $optional_required) {
335: $mandatory_failed++;
336: }
337: &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
338: $Apache::lonhomework::results{'resource.grader'}=
339: $env{'user.name'}.'@'.$env{'user.domain'};
340: if ($review) {
341: $Apache::lonhomework::results{"resource.$version.status"}='review';
342: &move_to_review_queue();
343: } elsif ($ungraded) {
344: $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
345: &check_queue_unlock();
346: } elsif ($mandatory_failed) {
347: $Apache::lonhomework::results{"resource.$version.status"}='fail';
348: $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
349: $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
350: $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
351: &remove_from_queue();
352: } else {
353: $Apache::lonhomework::results{"resource.$version.status"}='pass';
354: $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
355: $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
356: $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
357: &remove_from_queue();
358: }
359: $Apache::lonhomework::results{"resource.status"}=
360: $Apache::lonhomework::results{"resource.$version.status"};
361: if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
362: $Apache::lonhomework::results{"resource.0.award"}=
363: $Apache::lonhomework::results{"resource.$version.award"};
364: $Apache::lonhomework::results{"resource.0.awarded"}=
365: $Apache::lonhomework::results{"resource.$version.awarded"};
366: $Apache::lonhomework::results{"resource.0.solved"}=
367: $Apache::lonhomework::results{"resource.$version.solved"};
368: }
369: &Apache::structuretags::finalize_storage();
370: }
371: } elsif ($target eq 'webgrade') {
372: $result.="</table>\n<hr />";
373: #$result.='<input type="submit" name="next" value="'.
374: # &mt('Save & Next').'" /> ';
375: #$result.='<input type="submit" name="end" value="'.
376: # &mt('Save & Stop Grading').'" /> ';
377: #$result.='<input type="submit" name="throwaway" value="'.
378: # &mt('Throw Away & Stop Grading').'" /> ';
379: #$result.='<input type="submit" name="save" value="'.
380: # &mt('Save Partial Grade and Continue Grading').'" /> ';
381: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
382: } elsif ($target eq 'meta') {
383: $result.='<parameter part="0" package="Task"></parameter>'."\n";
384: #$result.=&Apache::response::meta_part_order();
385: #$result.=&Apache::response::meta_response_order();
386: }
387: undef($Apache::lonhomework::parsing_a_task);
388: return $result;
389: }
390:
391: sub move_to_review_queue {
392: &Apache::lonxml::debug("Want to move");
393: }
394:
395: sub check_queue_unlock {
396: &Apache::lonxml::debug("Want to unlock?");
397: }
398:
399: sub remove_from_queue {
400: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
401: my $cnum=$env{'course.'.$cid.'.num'};
402: my $cdom=$env{'course.'.$cid.'.domain'};
403: my $key="$symb\0queue\0$uname\@$udom";
404: my @keys=($key,"$key\0locked");
405: &Apache::lonnet::del('gradingqueue',\@keys,$cdom,$cnum);
406: }
407:
408: sub setup_env_for_other_user {
409: my ($queue_key,$safeeval)=@_;
410: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
411: $env{'form.grade_symb'}=$symb;
412: $env{'form.grade_domain'}=$udom;
413: $env{'form.grade_username'}=$uname;
414: $env{'form.grade_courseid'}=$env{'request.course.id'};
415: &Apache::lonxml::initialize_rndseed($safeeval);
416: }
417:
418: sub add_to_queue {
419: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
420: my $cnum=$env{'course.'.$cid.'.num'};
421: my $cdom=$env{'course.'.$cid.'.domain'};
422: my %data;
423: $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
424: &Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);
425: }
426:
427: sub show_queue {
428: my $result;
429: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
430: my $cnum=$env{'course.'.$cid.'.num'};
431: my $cdom=$env{'course.'.$cid.'.domain'};
432: my $regexp="^$symb\0";
433: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
434: $result.="\n<h3>Current Queue</h3><table border='1'><tr><th>resource</th>".
435: "<th>user</th><th>type</th><th>data</th></tr>";
436: foreach my $key (sort(keys(%queue))) {
437: if ($key=~/locked$/) {
438: my ($symb,$uname,$udom) = &decode_queue_key($key);
439: my $title=&Apache::lonnet::gettitle($symb);
440: $result.="<tr><td>$title</td><td>$uname</td>";
441: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
442: } elsif ($key=~/timestamp$/) {
443: my ($symb,undef) = split("\0",$key);
444: my $title=&Apache::lonnet::gettitle($symb);
445: $result.="<tr><td>$title</td><td></td>";
446: $result.='<td>last queue modification time</td><td>'.
447: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
448: } else {
449: my ($symb,$uname,$udom) = &decode_queue_key($key);
450: my $title=&Apache::lonnet::gettitle($symb);
451: $result.="<tr><td>$title</td><td>$uname</td>";
452: my $slot=$queue{$key}->[0];
453: my %slot_data=&Apache::lonnet::get_slot($slot);
454: $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
455: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
456: "</td></tr>";
457: }
458: }
459: $result.="</table><hr />\n";
460: return $result;
461: }
462:
463: sub decode_queue_key {
464: my ($key)=@_;
465: my ($symb,undef,$user) = split("\0",$key);
466: my ($uname,$udom) = split('@',$user);
467: return ($symb,$uname,$udom);
468: }
469:
470: sub queue_key_locked {
471: my ($key,$cdom,$cnum)=@_;
472: my ($key_locked,$value)=
473: &Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);
474: if ($key_locked eq "$key\0locked") {
475: return $value;
476: }
477: return undef;
478: }
479:
480: sub pick_from_queue_data {
481: my ($check_section,$queue,$cdom,$cnum)=@_;
482: foreach my $key (keys(%$queue)) {
483: my ($symb,$uname,$udom)=&decode_queue_key($key);
484: if ($check_section) {
485: my $section=&Apache::lonnet::getsection($uname,$udom);
486: if ($section eq $check_section) {
487: &Apache::lonnet::logthis("my sec");
488: next;
489: }
490: }
491: my $slot=$queue->{$key}[0];
492: my %slot_data=&Apache::lonnet::get_slot($slot);
493: if ($slot_data{'endtime'} > time) {
494: &Apache::lonnet::logthis("not time");
495: next;
496: }
497: if (&queue_key_locked($key,$cdom,$cnum)) {
498: &Apache::lonnet::logthis("someone already has um.");
499: next;
500: }
501: return $key;
502: }
503: return undef;
504: }
505:
506: sub find_mid_grade {
507: my ($symb,$cdom,$cnum)=@_;
508: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
509: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
510: if ($todo) {
511: my $who=&queue_key_locked($todo,$cdom,$cnum);
512: if ($who eq $me) { return $todo; }
513: }
514: my $regexp="^$symb\0.*\0locked\$";
515: my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
516: foreach my $key (keys(%locks)) {
517: my $who=$locks{$key};
518: if ($who eq $me) {
519: $todo=$key;
520: $todo=~s/\0locked$//;
521: return $todo;
522: }
523: }
524: return undef;
525: }
526:
527: sub get_from_queue {
528: my $result;
529: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
530: my $cnum=$env{'course.'.$cid.'.num'};
531: my $cdom=$env{'course.'.$cid.'.domain'};
532: my $todo;
533: # FIXME need to find if I am 'mid grading'
534: $todo=&find_mid_grade($symb,$cdom,$cnum);
535: &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
536: if ($todo) { return $todo; }
537: while (1) {
538: my $starttime=time;
539: &Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},
540: $cdom,$cnum);
541: &Apache::lonnet::logthis("$starttime");
542: my $regexp="^$symb\0queue\0";
543: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
544: #make a pass looking for a user in my section
545: if ($env{'request.course.sec'}) {
546: &Apache::lonnet::logthis("sce");
547: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
548: $cdom,$cnum);
549: &Apache::lonnet::logthis("sce $todo");
550: }
551: # no one in our section so look for any user that is ready for grading
552: if (!$todo) {
553: &Apache::lonnet::logthis("no sce");
554: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
555: $cdom,$cnum);
556: &Apache::lonnet::logthis("no sce $todo");
557: }
558: # no user to grade
559: if (!$todo) { last; }
560: &Apache::lonnet::logthis("got $todo");
561: # otherwise found someone so lets try to lock them
562: my $success=&Apache::lonnet::newput('gradingqueue',
563: {"$todo\0locked"=>
564: $env{'user.name'}.'@'.$env{'user.domain'}},
565: $cdom,$cnum);
566: # someone else already picked them
567: &Apache::lonnet::logthis("success $todo");
568: if ($success ne 'ok') { next; }
569: my (undef,$endtime)=
570: &Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],
571: $cdom,$cnum);
572: &Apache::lonnet::logthis("emd $endtime");
573: # someone else already modified the queue,
574: # perhaps our picked user wass already fully graded between
575: # when we picked him and when we locked his record? so lets
576: # double check.
577: if ($endtime != $starttime) {
578: my ($key,$value)=
579: &Apache::lonnet::get('gradingqueue',["$todo"],
580: $cdom,$cnum);
581: &Apache::lonnet::logthis("check $key .. $value");
582: if ($key eq $todo && ref($value)) {
583: } else {
584: &Apache::lonnet::del('gradingqueue',["$todo\0locked"],
585: $cdom,$cnum);
586: &Apache::lonnet::logthis("del");
587: next;
588: }
589: }
590: &Apache::lonnet::logthis("last $todo");
591: last;
592: }
593: return $todo;
594: }
595:
596: sub start_ClosingParagraph {
597: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
598: my $result;
599: if ($target eq 'web') {
600: } elsif ($target eq 'webgrade') {
601: &Apache::lonxml::startredirection();
602: }
603: return $result;
604: }
605:
606: sub end_ClosingParagraph {
607: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
608: my $result;
609: if ($target eq 'web') {
610: } elsif ($target eq 'webgrade') {
611: &Apache::lonxml::endredirection();
612: }
613: return $result;
614: }
615:
616: sub get_id {
617: my ($parstack,$safeeval)=@_;
618: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
619: if (!$id) { $id=$Apache::lonxml::curdepth; }
620: return $id;
621: }
622:
623: my %dimension;
624: sub start_Dimension {
625: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
626: undef(%dimension);
627: my $dim_id=&get_id($parstack,$safeeval);
628: $Apache::bridgetask::dimension=$dim_id;
629: push(@Apache::bridgetask::dimensionlist,$dim_id);
630: undef(@Apache::bridgetask::instance);
631: $Apache::bridgetask::dimensionmandatory{$dim_id}=
632: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
633: return '';
634: }
635:
636: sub get_instance {
637: #FIXME just grabbing the first one for now, need
638: #to randomly pick one until all have been seen
639: #then start repicking
640: &Apache::response::pushrandomnumber();
641: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
642: return $order[0];
643: }
644:
645: {
646: my $last_link;
647: sub end_Dimension {
648: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
649: my $result;
650: my $dim=&get_id($parstack,$safeeval);
651: my $instance=&get_instance();
652: my $version=&get_version();
653: if ($target eq 'web') {
654: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
655: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
656: $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
657: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
658: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
659: my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
660: $result.='<table border="1"><tr><td>';
661: if ($status eq 'fail') {
662: $result.='<font color="red">'.&mt('Did not pass').'</font>';
663: } elsif ($status eq 'pass') {
664: $result.='<font color="green">'.&mt('Passed').'</font>';
665: } else {
666: &Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
667: }
668: $result.='</td></tr><tr><td>';
669: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
670: $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
671: }
672: $result.=$dimension{$instance.'.criteria.'.$id}.
673: '</td></tr></table>';
674: }
675: }
676: } elsif ($target eq 'webgrade') {
677: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
678: my $link='criteria_'.$instance.'_'.$id;
679: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
680: $result.='<tr><td width="100%" valign="top">'.
681: '<a name="'.$link.'" />'.
682: '<a name="next_'.$last_link.'" />'.
683: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
684: #$dimension{$instance.'.criteria.'.$id}.
685: '</td>'.
686: '<td><nobr>Additional Comment for Student</nobr> <br />'.
687: '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
688: '</td>'.
689: '<td>'.
690: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>Ungraded</label></nobr><br />'.
691: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />Pass</label><br />'.
692: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />Fail</label><br />'.
693: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />Review</label><br />'.
694: '</td>'.
695: '<td>'.
696: '<a href="#'.$last_link.'">Prev</a><br />'.
697: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
698: '<input type="submit" name="next" value="'.
699: &mt('Done').'" /> '.
700: '</td></tr>';
701: $result.='<tr><td colspan="4">';
702: my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
703: my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
704: foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
705: my $file=$file_url.$partial_file;
706: &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
707: $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
708: &Apache::loncommon::icon($file).'" border=0"> '.$file.
709: '</a>';
710: }
711: $result.='</td></tr>';
712: $last_link=$link;
713: }
714: } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
715: my $optional_passed=0;
716: my $mandatory_failed=0;
717: my $ungraded=0;
718: my $review=0;
719: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
720: my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
721: $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
722: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
723: if ($status eq 'pass') {
724: if (!$mandatory) { $optional_passed++; }
725: } elsif ($status eq 'fail') {
726: if ($mandatory) { $mandatory_failed++; }
727: } elsif ($status eq 'review') {
728: $review++;
729: } elsif ($status eq 'ungraded') {
730: $ungraded++;
731: } else {
732: &Apache::lonxml::error("got weird status --$status--");
733: }
734: }
735: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
736: $mandatory_failed++;
737: }
738: &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
739: if ($review) {
740: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
741: 'review';
742: } elsif ($ungraded) {
743: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
744: 'ungraded';
745: } elsif ($mandatory_failed) {
746: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
747: 'fail';
748: } else {
749: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
750: 'pass';
751: }
752: }
753: return $result;
754: }
755: }
756:
757: sub start_IntroParagraph {
758: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
759: my $result;
760: if ($target eq 'web' || $target eq 'webgrade') {
761: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
762: &Apache::lonxml::startredirection();
763: }
764: }
765: return $result;
766: }
767:
768: sub end_IntroParagraph {
769: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
770: my $result;
771: if ($target eq 'web' || $target eq 'webgrade') {
772: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
773: $dimension{'intro'}=&Apache::lonxml::endredirection();
774: }
775: }
776: return $result;
777: }
778:
779: sub start_Instance {
780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
781: my $id=&get_id($parstack,$safeeval);
782: push(@{$dimension{'instances'}},$id);
783: push(@Apache::bridgetask::instance,$id);
784: push(@Apache::bridgetask::instancelist,$id);
785: $dimension{$id.'.optionalrequired'}=
786: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
787: return '';
788: }
789:
790: sub end_Instance {
791: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
792: return '';
793: }
794:
795: sub start_InstanceText {
796: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
797: if ($target eq 'web' || $target eq 'webgrade') {
798: &Apache::lonxml::startredirection();
799: }
800: return '';
801: }
802:
803: sub end_InstanceText {
804: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
805: my $instance_id=$Apache::bridgetask::instance[-1];
806: if ($target eq 'web' || $target eq 'webgrade') {
807: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
808: }
809: return '';
810: }
811:
812: sub start_Criteria {
813: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
814: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
815: &Apache::lonxml::startredirection();
816: }
817: return '';
818: }
819:
820: sub end_Criteria {
821: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
822: my $instance_id=$Apache::bridgetask::instance[-1];
823: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
824: my $criteria=&Apache::lonxml::endredirection();
825: my $id=&get_id($parstack,$safeeval);
826: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
827: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
828: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
829: push(@{$dimension{$instance_id.'.criterias'}},$id);
830: }
831: return '';
832: }
833:
834: sub proctor_validation_screen {
835: my ($slot) = @_;
836: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
837: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
838: $user=$env{'form.proctorname'};
839: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
840: my $msg;
841: if ($env{'form.proctorpassword'}) {
842: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
843: .'</font></p>';
844: }
845: my $result= (<<ENDCHECKOUT);
846: <h2>Proctor Validation</h2>
847: <p>Your room's proctor needs to validate your access to this resource.</p>
848: $msg
849: <form name="checkout" method="POST" action="$env{'request.uri'}">
850: <input type="hidden" name="validate" value="yes" />
851: <input type="hidden" name="submitted" value="yes" />
852: <table>
853: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
854: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
855: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
856: </table>
857: <input type="submit" name="checkoutbutton" value="Validate" /><br />
858: Student who should be logged in is:<br />
859: <img src="$url" /><br />
860: </form>
861: ENDCHECKOUT
862: return $result;
863: }
864:
865: 1;
866: __END__
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