1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.20 2005/05/10 16:03:44 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)=@_;
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: $Apache::lonhomework::results{'resource.checkedin'}=
73: $user.'@'.$domain;
74: return 1;
75: }
76: }
77: }
78: return 0;
79: }
80:
81: sub add_previous_version_button {
82: my $result;
83: $result.=&mt(' Show a previously done version: [_1]','<select name="previousversion">
84: <option>Pick one</option>
85: </select>');
86: return $result;
87: }
88:
89: sub add_grading_button {
90: my $result;
91: $result.=' <input type="submit" name="gradeasubmission" value="'.
92: &mt("Get a submission to grade").'" />';
93: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
94: return $result;
95: }
96:
97: sub start_Task {
98: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
99:
100: my ($status,$accessmsg,$slot);
101: if ($target ne 'webgrade') {
102: &Apache::structuretags::initialize_storage();
103: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
104: }
105:
106: $Apache::lonhomework::parsing_a_task=1;
107: #should get back a <html> or the neccesary stuff to start XML/MathML
108: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
109: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
110:
111: if ($target eq 'web') {
112: $body_tag_start.=&add_previous_version_button();
113: if ($Apache::lonhomework::modifygrades) {
114: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
115: my $uri=$env{'request.uri'};
116: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
117: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
118: }
119: }
120: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
121: $target eq 'tex') {
122: ($status,$accessmsg,my $slot_name,$slot) =
123: &Apache::lonhomework::check_task_access('0');
124: push(@Apache::inputtags::status,$status);
125: $Apache::inputtags::slot_name=$slot_name;
126: my $expression='$external::datestatus="'.$status.'";';
127: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
128: &Apache::run::run($expression,$safeeval);
129: &Apache::lonxml::debug("Got $status");
130: if (( $status eq 'CLOSED' ) ||
131: ( $status eq 'BANNED') ||
132: ( $status eq 'UNAVAILABLE') ||
133: ( $status eq 'NOT_IN_A_SLOT') ||
134: ( $status eq 'NEEDS_CHECKIN') ||
135: ( $status eq 'INVALID_ACCESS')) {
136: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
137: if ( $target eq "web" ) {
138: $result.= $head_tag_start.'</head>'.$body_tag_start;
139: my $msg;
140: if ($status eq 'UNAVAILABLE') {
141: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
142: } elsif ($status eq 'NOT_IN_A_SLOT') {
143: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
144: } elsif ($status eq 'NEEDS_CHECKIN') {
145: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
146: '</h1>'.&proctor_validation_screen($slot);
147: } elsif ($status ne 'NOT_YET_VIEWED') {
148: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
149: }
150: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
151: $msg.='The problem '.$accessmsg;
152: }
153: $result.=$msg.'<br />';
154: } elsif ($target eq 'tex') {
155: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
156: if ($status eq 'UNAVAILABLE') {
157: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
158: } else {
159: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
160: }
161: } elsif ($target eq 'grade') {
162: if ($status eq 'NEEDS_CHECKIN') {
163: if (&proctor_check_auth($slot)) {
164: #FIXME immeadiatly add this to the grading queue
165: # with slot->{'endtime'} for when grading can
166: # begin on this resource
167: }
168: }
169: }
170: } elsif ($target eq 'web') {
171: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
172: $result.="$head_tag_start<title>$name</title></head>
173: $body_tag_start \n $form_tag_start".
174: '<input type="hidden" name="submitted" value="yes" />';
175: # if we are viewing someone else preserve that info
176: if (defined $env{'form.grade_symb'}) {
177: foreach my $field ('symb','courseid','domain','username') {
178: $result .= '<input type="hidden" name="grade_'.$field.
179: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
180: }
181: }
182: }
183: } elsif ($target eq 'webgrade') {
184: $result.=$head_tag_start.$body_tag_start.$form_tag_start;
185: $result.='<input type="hidden" name="webgrade" value="yes" />';
186: $result.=&show_queue();
187: my $todo=&get_from_queue();
188: if ($todo) {
189: &setup_env_for_other_user($todo,$safeeval);
190: my ($symb,$uname,$udom)=&decode_queue_key($todo);
191: $result.="\n".'<table><tr><td>Found '.
192: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
193: $result.='<input type="hidden" name="gradingkey" value="'.
194: &Apache::lonnet::escape($todo).'" />';
195: $Apache::bridgetask::queue_key=$todo;
196: &Apache::structuretags::initialize_storage();
197: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
198: $result.="\n".'<table width="100%" style="width:100%" border="1">';
199: } else {
200: $result.="\n".
201: '<table><tr><td>No user to be graded.</td></tr></table>';
202: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
203: }
204:
205: } else {
206: # page_start returned a starting result, delete it if we don't need it
207: $result = '';
208: }
209: return $result;
210: }
211:
212: sub end_Task {
213: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
214: my $result='';
215: my $status=$Apache::inputtags::status['-1'];
216: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
217: $target eq 'tex') {
218: if (
219: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
220: ($target eq 'answer') || ($target eq 'tex')
221: ) {
222: if ($target eq 'web') {
223: if ($status eq 'CAN_ANSWER') {
224: $result.="\n".'<table border="1">'.
225: &Apache::inputtags::file_selector('0',"bridgetask","*",
226: 'portfolioonly').
227: "</table>";
228: $result.=&Apache::inputtags::gradestatus('0');
229: }
230: }
231: if ($target eq 'web' || $target eq 'webgrade') {
232: $result.=&Apache::lonxml::xmlend().'</html>';
233: }
234: }
235: if ($target eq 'grade' && !$env{'form.webgrade'}) {
236: my $award='SUBMITTED';
237: &Apache::essayresponse::file_submission('0','bridgetask',
238: 'portfiles',\$award);
239: if ($award eq 'SUBMITTED' &&
240: $Apache::lonhomework::results{"resource.0.bridgetask.portfiles"}) {
241: $Apache::lonhomework::results{"resource.0.tries"}=
242: 1+$Apache::lonhomework::history{"resource.0.tries"};
243: }
244: $Apache::lonhomework::results{"resource.0.award"}=$award;
245: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
246: &Apache::structuretags::finalize_storage();
247: if ($award eq 'SUBMITTED') {
248: &add_to_queue();
249: }
250: }
251: if ($target eq 'grade' && $env{'form.webgrade'}) {
252: my $optional_required=
253: &Apache::lonxml::get_param('OptionalRequired',$parstack,
254: $safeeval);
255: my $optional_passed=0;
256: my $mandatory_failed=0;
257: my $ungraded=0;
258: my $review=0;
259: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
260: my $status=
261: $Apache::lonhomeork::results{"resource.$dim_id.status"};
262: my $mandatory=
263: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
264: if ($status eq 'pass') {
265: if (!$mandatory) { $optional_passed++; }
266: } elsif ($status eq 'fail') {
267: if ($mandatory) { $mandatory_failed++; }
268: } elsif ($status eq 'ungraded') {
269: $ungraded++;
270: } elsif ($status eq 'review') {
271: $review++;
272: }
273: }
274: if ($optional_passed < $optional_required) {
275: $mandatory_failed++;
276: }
277: $Apache::lonhomeork::results{'resource.grader'}=
278: $env{'user.name'}.'@'.$env{'user.domain'};
279: if ($review) {
280: $Apache::lonhomeork::results{'resource.status'}='review';
281: &move_to_review_queue();
282: } elsif ($ungraded) {
283: $Apache::lonhomeork::results{'resource.status'}='ungraded';
284: &check_queue_unlock();
285: } elsif ($mandatory_failed) {
286: $Apache::lonhomeork::results{'resource.status'}='fail';
287: $Apache::lonhomework::results{"resource.0.award"}='EXACT_ANS';
288: &remove_from_queue();
289: } else {
290: $Apache::lonhomeork::results{'resource.status'}='pass';
291: $Apache::lonhomework::results{"resource.0.award"}='INCORRECT';
292: &remove_from_queue();
293: }
294: }
295: } elsif ($target eq 'webgrade') {
296: $result.="</table>\n<hr />";
297: #$result.='<input type="submit" name="next" value="'.
298: # &mt('Save & Next').'" /> ';
299: #$result.='<input type="submit" name="end" value="'.
300: # &mt('Save & Stop Grading').'" /> ';
301: #$result.='<input type="submit" name="throwaway" value="'.
302: # &mt('Throw Away & Stop Grading').'" /> ';
303: #$result.='<input type="submit" name="save" value="'.
304: # &mt('Save Partial Grade and Continue Grading').'" /> ';
305: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
306: } elsif ($target eq 'meta') {
307: $result.='<parameter part="0" package="Task"></parameter>'."\n";
308: #$result.=&Apache::response::meta_part_order();
309: #$result.=&Apache::response::meta_response_order();
310: }
311: undef($Apache::lonhomework::parsing_a_task);
312: return $result;
313: }
314:
315: sub setup_env_for_other_user {
316: my ($queue_key,$safeeval)=@_;
317: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
318: $env{'form.grade_symb'}=$symb;
319: $env{'form.grade_domain'}=$udom;
320: $env{'form.grade_username'}=$uname;
321: $env{'form.grade_courseid'}=$env{'request.course.id'};
322: &Apache::lonxml::initialize_rndseed($safeeval);
323: }
324:
325: sub add_to_queue {
326: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
327: my $cnum=$env{'course.'.$cid.'.num'};
328: my $cdom=$env{'course.'.$cid.'.domain'};
329: my %data;
330: $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
331: &Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);
332: }
333:
334: sub show_queue {
335: my $result;
336: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
337: my $cnum=$env{'course.'.$cid.'.num'};
338: my $cdom=$env{'course.'.$cid.'.domain'};
339: my $regexp="^$symb\0";
340: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
341: $result.="\n<h3>Current Queue</h3><table><tr><th>resource</th>".
342: "<th>user</th><th>type</th><th>data</th></tr>";
343: foreach my $key (sort(keys(%queue))) {
344: if ($key=~/locked$/) {
345: my ($symb,$uname,$udom) = &decode_queue_key($key);
346: my $title=&Apache::lonnet::gettitle($symb);
347: $result.="<tr><td>$title</td><td>$uname</td><td>";
348: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
349: } elsif ($key=~/timestamp$/) {
350: my ($symb,undef) = split("\0",$key);
351: my $title=&Apache::lonnet::gettitle($symb);
352: $result.="<tr><td>$title</td><td></td><td>";
353: $result.='<td>last queue modification time</td><td>'.
354: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
355: } else {
356: my ($symb,$uname,$udom) = &decode_queue_key($key);
357: my $title=&Apache::lonnet::gettitle($symb);
358: $result.="<tr><td>$title</td><td>$uname</td><td>";
359: my $slot=$queue{$key}->[0];
360: my %slot_data=&Apache::lonnet::get_slot($slot);
361: $result.='<td>queue entry</td><td>End time: '.
362: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
363: "</td></tr>";
364: }
365: }
366: $result.="</table><hr />\n";
367: return $result;
368: }
369:
370: sub decode_queue_key {
371: my ($key)=@_;
372: my ($symb,undef,$user) = split("\0",$key);
373: my ($uname,$udom) = split('@',$user);
374: return ($symb,$uname,$udom);
375: }
376:
377: sub queue_key_locked {
378: my ($key,$cdom,$cnum)=@_;
379: my ($key_locked,$value)=
380: &Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);
381: if ($key_locked eq "$key\0locked") {
382: return $value;
383: }
384: return undef;
385: }
386:
387: sub pick_from_queue_data {
388: my ($check_section,$queue,$cdom,$cnum)=@_;
389: foreach my $key (keys(%$queue)) {
390: my ($symb,$uname,$udom)=&decode_queue_key($key);
391: if ($check_section) {
392: my $section=&Apache::lonnet::getsection($uname,$udom);
393: if ($section eq $check_section) {
394: &Apache::lonnet::logthis("my sec");
395: next;
396: }
397: }
398: my $slot=$queue->{$key}[0];
399: my %slot_data=&Apache::lonnet::get_slot($slot);
400: if ($slot_data{'endtime'} > time) {
401: &Apache::lonnet::logthis("not time");
402: next;
403: }
404: if (&queue_key_locked($key,$cdom,$cnum)) {
405: &Apache::lonnet::logthis("someone already has um.");
406: next;
407: }
408: return $key;
409: }
410: return undef;
411: }
412:
413: sub find_mid_grade {
414: my ($symb,$cdom,$cnum)=@_;
415: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
416: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
417: if ($todo) {
418: my $who=&queue_key_locked($todo,$cdom,$cnum);
419: if ($who eq $me) { return $todo; }
420: }
421: my $regexp="^$symb\0.*\0locked\$";
422: my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
423: foreach my $key (keys(%locks)) {
424: my $who=$locks{$key};
425: if ($who eq $me) {
426: $todo=$key;
427: $todo=~s/\0locked$//;
428: return $todo;
429: }
430: }
431: return undef;
432: }
433:
434: sub get_from_queue {
435: my $result;
436: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
437: my $cnum=$env{'course.'.$cid.'.num'};
438: my $cdom=$env{'course.'.$cid.'.domain'};
439: my $todo;
440: # FIXME need to find if I am 'mid grading'
441: $todo=&find_mid_grade($symb,$cdom,$cnum);
442: &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
443: if ($todo) { return $todo; }
444: while (1) {
445: my $starttime=time;
446: &Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},
447: $cdom,$cnum);
448: &Apache::lonnet::logthis("$starttime");
449: my $regexp="^$symb\0queue\0";
450: my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
451: #make a pass looking for a user in my section
452: if ($env{'request.course.sec'}) {
453: &Apache::lonnet::logthis("sce");
454: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
455: $cdom,$cnum);
456: &Apache::lonnet::logthis("sce $todo");
457: }
458: # no one in our section so look for any user that is ready for grading
459: if (!$todo) {
460: &Apache::lonnet::logthis("no sce");
461: $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
462: $cdom,$cnum);
463: &Apache::lonnet::logthis("no sce $todo");
464: }
465: # no user to grade
466: if (!$todo) { last; }
467: &Apache::lonnet::logthis("got $todo");
468: # otherwise found someone so lets try to lock them
469: my $success=&Apache::lonnet::newput('gradingqueue',
470: {"$todo\0locked"=>
471: $env{'user.name'}.'@'.$env{'user.domain'}},
472: $cdom,$cnum);
473: # someone else already picked them
474: &Apache::lonnet::logthis("success $todo");
475: if ($success ne 'ok') { next; }
476: my (undef,$endtime)=
477: &Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],
478: $cdom,$cnum);
479: &Apache::lonnet::logthis("emd $endtime");
480: # someone else already modified the queue,
481: # perhaps our picked user wass already fully graded between
482: # when we picked him and when we locked his record? so lets
483: # double check.
484: if ($endtime != $starttime) {
485: my ($key,$value)=
486: &Apache::lonnet::get('gradingqueue',["$todo"],
487: $cdom,$cnum);
488: &Apache::lonnet::logthis("check $key .. $value");
489: if ($key eq $todo && ref($value)) {
490: } else {
491: &Apache::lonnet::del('gradingqueue',["$todo\0locked"],
492: $cdom,$cnum);
493: &Apache::lonnet::logthis("del");
494: next;
495: }
496: }
497: &Apache::lonnet::logthis("last $todo");
498: last;
499: }
500: return $todo;
501: }
502:
503: sub start_ClosingParagraph {
504: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
505: my $result;
506: if ($target eq 'web') {
507: } elsif ($target eq 'webgrade') {
508: &Apache::lonxml::startredirection();
509: }
510: return $result;
511: }
512:
513: sub end_ClosingParagraph {
514: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
515: my $result;
516: if ($target eq 'web') {
517: } elsif ($target eq 'webgrade') {
518: &Apache::lonxml::endredirection();
519: }
520: return $result;
521: }
522:
523: sub get_id {
524: my ($parstack,$safeeval)=@_;
525: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
526: if (!$id) { $id=$Apache::lonxml::curdepth; }
527: return $id;
528: }
529:
530: my %dimension;
531: sub start_Dimension {
532: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
533: undef(%dimension);
534: my $dim_id=&get_id($parstack,$safeeval);
535: $Apache::bridgetask::dimension=$dim_id;
536: push(@Apache::bridgetask::dimensionlist,$dim_id);
537: undef(@Apache::bridgetask::instance);
538: $Apache::bridgetask::dimensionmandatory{$dim_id}=
539: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
540: return '';
541: }
542:
543: sub get_instance {
544: #FIXME just grabbing the first one for now, need
545: #to randomly pick one until all have been seen
546: #then start repicking
547: &Apache::response::pushrandomnumber();
548: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
549: return $order[0];
550: }
551:
552: {
553: my $last_link;
554: sub end_Dimension {
555: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
556: my $result;
557: my $instance=&get_instance();
558: if ($target eq 'web') {
559: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
560: } elsif ($target eq 'webgrade') {
561: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
562: my $link='criteria_'.$instance.'_'.$id;
563: my $status=$Apache::lonhomeork::history{'resource.'.$instance.'.'.$id.'.status'};
564: $result.='<tr><td width="100%" valign="top">'.
565: '<a name="'.$link.'" />'.
566: '<a name="next_'.$last_link.'" />'.
567: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
568: #$dimension{$instance.'.criteria.'.$id}.
569: '</td>'.
570: '<td><nobr>Additional Comment for Student</nobr> <br />'.
571: '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomeork::history{'resource.'.$instance.'.'.$id.'.comment'}).'</textarea>'.
572: '</td>'.
573: '<td>'.
574: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>Ungraded</label></nobr><br />'.
575: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />Pass</label><br />'.
576: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />Fail</label><br />'.
577: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />Review</label><br />'.
578: '</td>'.
579: '<td>'.
580: '<a href="#'.$last_link.'">Prev</a><br />'.
581: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
582: '<input type="submit" name="next" value="'.
583: &mt('Done').'" /> '.
584: '</td></tr>';
585: $last_link=$link;
586: }
587: } elsif ($target eq 'grade') {
588: my $optional_passed=0;
589: my $mandatory_failed=0;
590: my $ungraded=0;
591: my $review=0;
592: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
593: my $status=$Apache::lonhomeork::results{'resource.'.$instance.'.'.$id.'.status'}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
594: $Apache::lonhomeork::results{'resource.'.$instance.'.'.$id.'.comment'}=$env{'form.HWVAL_comment_'.$instance.'_'.$id};
595: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
596: if ($status eq 'pass') {
597: if (!$mandatory) { $optional_passed++; }
598: } elsif ($status eq 'fail') {
599: if ($mandatory) { $mandatory_failed++; }
600: } elsif ($status eq 'ungraded') {
601: $ungraded++;
602: } elsif ($status eq 'review') {
603: $review++;
604: }
605: }
606: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
607: $mandatory_failed++;
608: }
609: if ($review) {
610: $Apache::lonhomeork::results{'resource.'.$instance.'.status'}='review';
611: } elsif ($ungraded) {
612: $Apache::lonhomeork::results{'resource.'.$instance.'.status'}='ungraded';
613: } elsif ($mandatory_failed) {
614: $Apache::lonhomeork::results{'resource.'.$instance.'.status'}='fail';
615: } else {
616: $Apache::lonhomeork::results{'resource.'.$instance.'.status'}='pass';
617: }
618: }
619: return $result;
620: }
621: }
622:
623: sub start_IntroParagraph {
624: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
625: my $result;
626: if ($target eq 'web' || $target eq 'webgrade') {
627: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
628: &Apache::lonxml::startredirection();
629: }
630: }
631: return $result;
632: }
633:
634: sub end_IntroParagraph {
635: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
636: my $result;
637: if ($target eq 'web' || $target eq 'webgrade') {
638: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
639: $dimension{'intro'}=&Apache::lonxml::endredirection();
640: }
641: }
642: return $result;
643: }
644:
645: sub start_Instance {
646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
647: my $id=&get_id($parstack,$safeeval);
648: push(@{$dimension{'instances'}},$id);
649: push(@Apache::bridgetask::instance,$id);
650: push(@Apache::bridgetask::instancelist,$id);
651: $dimension{$id.'.optionalrequired'}=
652: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
653: return '';
654: }
655:
656: sub end_Instance {
657: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
658: return '';
659: }
660:
661: sub start_InstanceText {
662: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
663: if ($target eq 'web' || $target eq 'webgrade') {
664: &Apache::lonxml::startredirection();
665: }
666: return '';
667: }
668:
669: sub end_InstanceText {
670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
671: my $instance_id=$Apache::bridgetask::instance[-1];
672: if ($target eq 'web' || $target eq 'webgrade') {
673: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
674: }
675: return '';
676: }
677:
678: sub start_Criteria {
679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
680: if ($target eq 'web' || $target eq 'webgrade') {
681: &Apache::lonxml::startredirection();
682: }
683: return '';
684: }
685:
686: sub end_Criteria {
687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
688: my $instance_id=$Apache::bridgetask::instance[-1];
689: if ($target eq 'web' || $target eq 'webgrade') {
690: my $criteria=&Apache::lonxml::endredirection();
691: my $id=&get_id($parstack,$safeeval);
692: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
693: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
694: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
695: push(@{$dimension{$instance_id.'.criterias'}},$id);
696: }
697: return '';
698: }
699:
700: sub proctor_validation_screen {
701: my ($slot) = @_;
702: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
703: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
704: $user=$env{'form.proctorname'};
705: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
706: my $msg;
707: if ($env{'form.proctorpassword'}) {
708: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
709: .'</font></p>';
710: }
711: my $result= (<<ENDCHECKOUT);
712: <h2>Proctor Validation</h2>
713: <p>Your room's proctor needs to validate your access to this resource.</p>
714: $msg
715: <form name="checkout" method="POST" action="$env{'request.uri'}">
716: <input type="hidden" name="validate" value="yes" />
717: <input type="hidden" name="submitted" value="yes" />
718: <table>
719: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
720: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
721: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
722: </table>
723: <input type="submit" name="checkoutbutton" value="Validate" /><br />
724: Student who should be logged in is:<br />
725: <img src="$url" /><br />
726: </form>
727: ENDCHECKOUT
728: return $result;
729: }
730:
731: 1;
732: __END__
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