1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.41 2005/08/15 19:41:16 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 Apache::slotrequest();
40: use Time::HiRes qw( gettimeofday tv_interval );
41:
42: BEGIN {
43: &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
44: }
45:
46: sub initialize_bridgetask {
47: # id of current Dimension, 0 means that no dimension is current
48: # (inside <Task> only)
49: $Apache::bridgetask::dimension='';
50: # list of all Dimension ids seen
51: @Apache::bridgetask::dimensionlist=();
52: # mandatory attribute of all Dimensions seen
53: %Apache::bridgetask::dimensionmandatory=();
54: # list of all current Instance ids
55: @Apache::bridgetask::instance=();
56: # list of all Instance ids seen in this problem
57: @Apache::bridgetask::instancelist=();
58: # key of queud user data that we are currently grading
59: $Apache::bridgetask::queue_key='';
60: }
61:
62: sub proctor_check_auth {
63: my ($slot_name,$slot)=@_;
64: my $user=$env{'form.proctorname'};
65: my $domain=$env{'form.proctordomain'};
66:
67: my @allowed=split(",",$slot->{'proctor'});
68: foreach my $possible (@allowed) {
69: my ($puser,$pdom)=(split('@',$possible));
70: if ($puser eq $user && $pdom eq $domain) {
71: my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
72: if ($authhost ne 'no_host') {
73: my $version=
74: $Apache::lonhomework::results{'resource.version'}=
75: ++$Apache::lonhomework::history{'resource.version'};
76: $Apache::lonhomework::results{"resource.$version.checkedin"}=
77: $user.'@'.$domain;
78: $Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
79: $slot_name;
80: foreach my $key (keys(%Apache::lonhomework::history)) {
81: if ($key=~/^resource\.0\./) {
82: $Apache::lonhomework::results{$key}='';
83: }
84: }
85: return 1;
86: }
87: }
88: }
89: return 0;
90: }
91:
92: sub get_version {
93: my ($version,$previous);
94: if ($env{'form.previousversion'} &&
95: $env{'form.previousversion'} ne 'current' &&
96: defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
97: $version=$env{'form.previousversion'};
98: $previous=1;
99: } else {
100: $version=$Apache::lonhomework::history{'resource.version'};
101: $previous=0;
102: }
103: if (wantarray) {
104: return ($version,$previous);
105: }
106: return $version;
107: }
108:
109: sub add_previous_version_button {
110: my ($status)=@_;
111: my $result;
112: if ($Apache::lonhomework::history{'resource.version'} eq '') {
113: return '';
114: }
115: if ($Apache::lonhomework::history{'resource.version'} < 2 &&
116: $status ne 'NEEDS_CHECKIN') {
117: return '';
118: }
119: my $version=&get_version();
120: if ($env{'form.previousversion'} ne '' &&
121: $env{'form.previousversion'} eq $version) {
122: $result.="<h3>".&mt("Showing previous version [_1]",$version).
123: "</h3>\n";
124: }
125: my @to_show;
126: foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
127: if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
128: push(@to_show,$test_version);
129: }
130: }
131: my $list='<option>'.
132: join("</option>\n<option>",@to_show).
133: "</option>\n";
134: $list.='<option value="current">'.&mt('Current').'</option>';
135: $result.='<form name="getprevious" method="POST" action="';
136: my $uri=$env{'request.uri'};
137: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
138: $result.=$uri.'">'.
139: &mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
140: <option>'.&mt('Pick one').'</option>
141: '.$list.'
142: </select>')."</form>";
143: return $result;
144: }
145:
146: sub add_grading_button {
147: my $result=' <input type="submit" name="gradeasubmission" value="'.
148: &mt("Get a submission to grade").'" />';
149: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
150: if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
151: # FIXME need a permission for limiting this to 'powerful users'
152:
153: my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
154: $result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
155:
156: $result.=' <input type="submit" name="reviewagrading" value="'.
157: &mt("Select an entry from the grading queue").'" /> </p>'."\n";
158:
159: ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
160: $result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
161: $result.=' <input type="submit" name="reviewasubmission" value="'.
162: &mt("Select an entry from the review queue").'" /> </p>'."\n";
163: }
164: return $result;
165: }
166:
167: sub add_request_another_attempt_button {
168: my ($text)=@_;
169: if (!$text) { $text="Request another attempt"; }
170: my $result;
171: my $symb=&Apache::lonnet::symbread();
172: my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
173: my $action='get_reservation';
174: if ($slot_name) {
175: $text="Change reservation.";
176: $action='change_reservation';
177: my $description=&Apache::slotrequest::get_description($slot_name,
178: $slot);
179: $result.=(<<STUFF);
180: <p> Will be next available: $description </p>
181: STUFF
182: }
183:
184: if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
185: $symb=&Apache::lonnet::escape($symb);
186: $result.='<form method="POST" action="/adm/slotrequest">'.
187: '<input type="hidden" name="symb" value="'.$symb.'" />'.
188: '<input type="hidden" name="command" value="'.$action.'" />'.
189: '<input type="submit" name="requestattempt" value="'.
190: &mt($text).'" />'.
191: '</form>';
192: return $result;
193: }
194:
195: sub preserve_grade_info {
196: my $result;
197: # if we are viewing someone else preserve that info
198: if (defined $env{'form.grade_symb'}) {
199: foreach my $field ('symb','courseid','domain','username') {
200: $result .= '<input type="hidden" name="grade_'.$field.
201: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
202: }
203: }
204: return $result;
205: }
206:
207: sub start_Task {
208: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
209:
210: my ($status,$accessmsg,$slot);
211: if ($target ne 'webgrade') {
212: &Apache::structuretags::initialize_storage();
213: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
214: }
215:
216: $Apache::lonhomework::parsing_a_task=1;
217: #should get back a <html> or the neccesary stuff to start XML/MathML
218: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
219: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
220:
221: if ($target eq 'web') {
222: if ($Apache::lonhomework::modifygrades) {
223: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
224: my $uri=$env{'request.uri'};
225: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
226: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
227: my $symb=&Apache::lonnet::symbread();
228: if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
229: $body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
230: '<input type="hidden" name="symb" value="'.$symb.'" />'.
231: '<input type="hidden" name="command" value="showslots" />'.
232: '<input type="submit" name="requestattempt" value="'.
233: &mt('Show Slot list').'" />'.
234: '</form>';
235: }
236: }
237: }
238: if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
239: $target eq 'tex') {
240: my ($version,$previous)=&get_version();
241: ($status,$accessmsg,my $slot_name,$slot) =
242: &Apache::lonhomework::check_task_access('0');
243: push(@Apache::inputtags::status,$status);
244: $Apache::inputtags::slot_name=$slot_name;
245: my $expression='$external::datestatus="'.$status.'";';
246: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
247: &Apache::run::run($expression,$safeeval);
248: &Apache::lonxml::debug("Got $status");
249: $body_tag_start.=&add_previous_version_button($status);
250: if (!$previous && (
251: ( $status eq 'CLOSED' ) ||
252: ( $status eq 'BANNED') ||
253: ( $status eq 'UNAVAILABLE') ||
254: ( $status eq 'NOT_IN_A_SLOT') ||
255: ( $status eq 'NEEDS_CHECKIN') ||
256: ( $status eq 'WAITING_FOR_GRADE') ||
257: ( $status eq 'INVALID_ACCESS') )) {
258: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
259: if ( $target eq "web" ) {
260: $result.= $head_tag_start.'</head>'.$body_tag_start;
261: my $msg;
262: if ($status eq 'UNAVAILABLE') {
263: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
264: } elsif ($status eq 'NOT_IN_A_SLOT') {
265: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
266: $msg.=&add_request_another_attempt_button("Sign up for time to work.");
267: } elsif ($status eq 'NEEDS_CHECKIN') {
268: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
269: '</h1>'.&proctor_validation_screen($slot);
270: } elsif ($status eq 'WAITING_FOR_GRADE') {
271: $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
272: } elsif ($status ne 'NOT_YET_VIEWED') {
273: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
274: }
275: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
276: $msg.='The problem '.$accessmsg;
277: }
278: $result.=$msg.'<br />';
279: } elsif ($target eq 'tex') {
280: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
281: if ($status eq 'UNAVAILABLE') {
282: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
283: } else {
284: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
285: }
286: } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
287: if ($status eq 'NEEDS_CHECKIN') {
288: &proctor_check_auth($slot_name,$slot);
289: }
290: }
291: } elsif ($target eq 'web') {
292: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
293: $result.="$head_tag_start<title>$name</title></head>
294: $body_tag_start \n";
295:
296: my ($version,$previous)=&get_version();
297: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
298: $result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
299: if (!$previous) {
300: $result.=&add_request_another_attempt_button();
301: }
302: }
303: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
304: $result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
305: }
306: $result.=$form_tag_start.
307: '<input type="hidden" name="submitted" value="yes" />';
308: $result.=&preserve_grade_info();
309:
310: }
311: } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
312: $target eq 'webgrade') {
313: my $webgrade='yes';
314: if ($target eq 'webgrade') {
315: $result.=$head_tag_start.$body_tag_start;
316: $result.='<br />Review'.&show_queue('reviewqueue');
317: $result.='<br />Grade'.&show_queue('gradingqueue');
318: }
319: # FIXME Blast! still need to reorg this, need to reshow the
320: # queue being reviewed once done with the grade pass...
321: # Hrrm, vaildation pass should perhaps say 'not_locked'
322: # perhaps do a search if there is a key that is mine and if
323: # there isn't reshow the queue....
324: my ($todo,$status_code)=&get_key_todo($target);
325:
326: &Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
327: if ($todo) {
328: &setup_env_for_other_user($todo,$safeeval);
329: my ($symb,$uname,$udom)=&decode_queue_key($todo);
330: $result.="\n".'<table><tr><td>Found '.
331: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
332: $form_tag_start.=
333: '<input type="hidden" name="gradingkey" value="'.
334: &Apache::lonnet::escape($todo).'" />';
335: $Apache::bridgetask::queue_key=$todo;
336: &Apache::structuretags::initialize_storage();
337: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
338: if ($target eq 'webgrade') {
339: $result.='<br />After -'.&show_queue($env{'form.queue'});
340: $result.="\n".'<table width="100%" style="width:100%" border="1">';
341: if ($status_code eq 'selected') {
342: $form_tag_start.=
343: '<input type="hidden" name="queuemode" value="selected" />';
344: }
345: }
346: } else {
347: if ($target eq 'webgrade') {
348: $result.="\n";
349: if ($status_code eq 'stop') {
350: $result.='<b>'.&mt("Stopped grading.").'</b>';
351: } elsif ($status_code eq 'lock_failed') {
352: $result.='<b>'.&mt("Failed to lock the request record.").'</b>';
353: } elsif ($status_code eq 'unlock') {
354: $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
355: $result.=&show_queue($env{'form.queue'},1);
356: } elsif ($status_code eq 'show_list') {
357: $result.=&show_queue($env{'form.queue'},1);
358: } else {
359: $result.='<b>'.&mt("No user to be graded.").'</b>';
360: }
361: }
362: $webgrade='no';
363: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
364: }
365: if ($target eq 'webgrade' && defined($env{'form.queue'})) {
366: $result.=$form_tag_start;
367: $result.='<input type="hidden" name="webgrade" value="'.
368: $webgrade.'" />';
369: $result.='<input type="hidden" name="queue" value="'.
370: $env{'form.queue'}.'" />';
371: }
372: } else {
373: # page_start returned a starting result, delete it if we don't need it
374: $result = '';
375: }
376: return $result;
377: }
378:
379: sub get_key_todo {
380: my ($target)=@_;
381: my $todo;
382:
383: if (defined($env{'form.reviewasubmission'})) {
384: &Apache::lonnet::logthis("review a submission....");
385: $env{'form.queue'}='reviewqueue';
386: return (undef,'show_list');
387: }
388:
389: if (defined($env{'form.reviewagrading'})) {
390: &Apache::lonxml::debug("review a grading....");
391: $env{'form.queue'}='gradingqueue';
392: return (undef,'show_list');
393: }
394:
395: my $queue=$env{'form.queue'};
396:
397: if (!defined($queue)) {
398: $env{'form.queue'}=$queue='gradingqueue';
399: }
400:
401: my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
402:
403: if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
404: && !defined($env{'form.gradingaction'})
405: && $env{'form.queuemode'} eq 'selected') {
406:
407: my $who=&queue_key_locked($queue,$gradingkey);
408: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
409: if ($who eq $me) {
410: &Apache::lonxml::debug("Found a key was given to me");
411: return ($gradingkey,'selected');
412: } else {
413: return (undef,'show_list');
414: }
415:
416: }
417:
418: if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
419: if ($env{'form.gradingaction'} eq 'resume') {
420: delete($env{'form.gradingaction'});
421: &Apache::lonxml::debug("Resuming a key");
422: return ($gradingkey);
423: } elsif ($env{'form.gradingaction'} eq 'unlock') {
424: &Apache::lonxml::debug("Unlocking a key ".
425: &check_queue_unlock($queue,$gradingkey,1));
426: return (undef,'unlock');
427: } elsif ($env{'form.gradingaction'} eq 'select') {
428: &Apache::lonxml::debug("Locking a key");
429: if (&lock_key($queue,$gradingkey)) {
430: &Apache::lonxml::debug("Success $queue");
431: return ($gradingkey);
432: }
433: &Apache::lonxml::debug("Failed $queue");
434: return (undef,'lock_failed');
435: }
436: }
437:
438: if ($env{'form.queuemode'} ne 'selected') {
439: # don't get something new from the queue if they hit the stop button
440: if (!($env{'form.stop'} && $target eq 'webgrade')
441: && !$env{'form.gradingaction'}) {
442: &Apache::lonxml::debug("Getting anew $queue");
443: return (&get_from_queue($queue));
444: } else {
445: return (undef,'stop');
446: }
447: }
448: return (undef,undef)
449: }
450:
451: sub end_Task {
452: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
453: my $result='';
454: my $status=$Apache::inputtags::status['-1'];
455: my ($version,$previous)=&get_version();
456: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
457: $target eq 'tex') {
458: if (
459: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
460: ($target eq 'answer') || ($target eq 'tex')
461: ) {
462: if ($target eq 'web') {
463: if ($status eq 'CAN_ANSWER' && !$previous) {
464: $result.="\n".'<table border="1">'.
465: &Apache::inputtags::file_selector("$version.0",
466: "bridgetask","*",
467: 'portfolioonly').
468: "</table>";
469: $result.=&Apache::inputtags::gradestatus('0');
470: }
471: }
472: if ($target eq 'web' || $target eq 'webgrade') {
473: $result.=&Apache::lonxml::xmlend().'</html>';
474: }
475: }
476: if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
477: my $award='SUBMITTED';
478: &Apache::essayresponse::file_submission("$version.0",'bridgetask',
479: 'portfiles',\$award);
480: if ($award eq 'SUBMITTED' &&
481: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
482: $Apache::lonhomework::results{"resource.0.tries"}=
483: $Apache::lonhomework::results{"resource.$version.0.tries"}=
484: 1+$Apache::lonhomework::history{"resource.$version.0.tries"};
485:
486: $Apache::lonhomework::results{"resource.0.award"}=
487: $Apache::lonhomework::results{"resource.$version.0.award"}=
488: $award;
489: }
490: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
491: &Apache::structuretags::finalize_storage();
492: if ($award eq 'SUBMITTED') {
493: &add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
494: }
495: }
496: if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
497: my $optional_required=
498: &Apache::lonxml::get_param('OptionalRequired',$parstack,
499: $safeeval);
500: my $optional_passed=0;
501: my $mandatory_failed=0;
502: my $ungraded=0;
503: my $review=0;
504: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
505: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
506: my $status=
507: $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
508: my $mandatory=
509: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
510: if ($status eq 'pass') {
511: if (!$mandatory) { $optional_passed++; }
512: } elsif ($status eq 'fail') {
513: if ($mandatory) { $mandatory_failed++; }
514: } elsif ($status eq 'ungraded') {
515: $ungraded++;
516: } elsif ($status eq 'review') {
517: $review++;
518: }
519: }
520: if ($optional_passed < $optional_required) {
521: $mandatory_failed++;
522: }
523: &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
524: $Apache::lonhomework::results{'resource.grader'}=
525: $env{'user.name'}.'@'.$env{'user.domain'};
526: if ($review) {
527: $Apache::lonhomework::results{"resource.$version.status"}='review';
528: if ($env{'form.queue'} eq 'reviewqueue') {
529: &check_queue_unlock($env{'form.queue'});
530: &Apache::lonxml::debug(" still needs review not changing status.");
531: } else {
532: &move_between_queues('gradingqueue','reviewqueue');
533: }
534: } elsif ($ungraded) {
535: $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
536: if ($env{'form.queue'} eq 'reviewqueue') {
537: &Apache::lonxml::debug("moving back.");
538: &move_between_queues('reviewqueue','gradingqueue');
539: } else {
540: &check_queue_unlock($env{'form.queue'});
541: }
542: } elsif ($mandatory_failed) {
543: $Apache::lonhomework::results{"resource.$version.status"}='fail';
544: $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
545: $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
546: $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
547: &remove_from_queue($env{'form.queue'});
548:
549: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
550: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
551: $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
552: &Apache::grades::version_portfiles(
553: \%Apache::lonhomework::results,
554: ["$version.0.bridgetask"],$courseid,
555: $symb,$udom,$uname,
556: ["$version.0.bridgetask"]);
557: } else {
558: $Apache::lonhomework::results{"resource.$version.status"}='pass';
559: $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
560: $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
561: $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
562: &remove_from_queue($env{'form.queue'});
563:
564: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
565: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
566: $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
567: &Apache::grades::version_portfiles(
568: \%Apache::lonhomework::results,
569: ["$version.0.bridgetask"],$courseid,
570: $symb,$udom,$uname,
571: ["$version.0.bridgetask"]);
572: }
573: $Apache::lonhomework::results{"resource.status"}=
574: $Apache::lonhomework::results{"resource.$version.status"};
575: if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
576: $Apache::lonhomework::results{"resource.0.award"}=
577: $Apache::lonhomework::results{"resource.$version.award"};
578: $Apache::lonhomework::results{"resource.0.awarded"}=
579: $Apache::lonhomework::results{"resource.$version.awarded"};
580: $Apache::lonhomework::results{"resource.0.solved"}=
581: $Apache::lonhomework::results{"resource.$version.solved"};
582: }
583: &Apache::structuretags::finalize_storage();
584: }
585: } elsif ($target eq 'webgrade') {
586: $result.="</table>\n<hr />";
587: #$result.='<input type="submit" name="next" value="'.
588: # &mt('Save & Next').'" /> ';
589: #$result.='<input type="submit" name="end" value="'.
590: # &mt('Save & Stop Grading').'" /> ';
591: #$result.='<input type="submit" name="throwaway" value="'.
592: # &mt('Throw Away & Stop Grading').'" /> ';
593: #$result.='<input type="submit" name="save" value="'.
594: # &mt('Save Partial Grade and Continue Grading').'" /> ';
595: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
596: } elsif ($target eq 'meta') {
597: $result.='<parameter part="0" package="Task"></parameter>'."\n";
598: #$result.=&Apache::response::meta_part_order();
599: #$result.=&Apache::response::meta_response_order();
600: }
601: undef($Apache::lonhomework::parsing_a_task);
602: return $result;
603: }
604:
605: sub move_between_queues {
606: my ($src_queue,$dest_queue)=@_;
607: my $cur_data=&get_queue_data($src_queue);
608: if (!$cur_data) { return 'not_exist'; }
609: my $result=&add_to_queue($dest_queue,$cur_data->[0]);
610: if ($result ne 'ok') {
611: return $result;
612: }
613: &check_queue_unlock($src_queue);
614: return &remove_from_queue($src_queue);
615: }
616:
617: sub check_queue_unlock {
618: my ($queue,$key,$allow_not_me)=@_;
619: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
620: if (!defined($key)) {
621: $key="$symb\0queue\0$uname\@$udom";
622: }
623: my $cnum=$env{'course.'.$cid.'.num'};
624: my $cdom=$env{'course.'.$cid.'.domain'};
625: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
626: my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
627: if ($who eq $me) {
628: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
629: } elsif ($allow_not_me) {
630: &Apache::lonxml::debug("unlocking $who by $me");
631: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
632: }
633: return 'not_owner';
634: }
635:
636: sub remove_from_queue {
637: my ($queue)=@_;
638: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
639: my $cnum=$env{'course.'.$cid.'.num'};
640: my $cdom=$env{'course.'.$cid.'.domain'};
641: my $key="$symb\0queue\0$uname\@$udom";
642: my @keys=($key,"$key\0locked");
643: return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
644: }
645:
646: sub setup_env_for_other_user {
647: my ($queue_key,$safeeval)=@_;
648: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
649: &Apache::lonxml::debug("setup_env for $queue_key");
650: $env{'form.grade_symb'}=$symb;
651: $env{'form.grade_domain'}=$udom;
652: $env{'form.grade_username'}=$uname;
653: $env{'form.grade_courseid'}=$env{'request.course.id'};
654: &Apache::lonxml::initialize_rndseed($safeeval);
655: }
656:
657: sub get_queue_data {
658: my ($queue)=@_;
659: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
660: my $cnum=$env{'course.'.$cid.'.num'};
661: my $cdom=$env{'course.'.$cid.'.domain'};
662: my $todo="$symb\0queue\0$uname\@$udom";
663: my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
664: if ($key eq $todo && ref($value)) {
665: return $value;
666: }
667: return undef;
668: }
669:
670: sub add_to_queue {
671: my ($queue,$slot_name)=@_;
672: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
673: my $cnum=$env{'course.'.$cid.'.num'};
674: my $cdom=$env{'course.'.$cid.'.domain'};
675: my %data;
676: $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
677: return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
678: }
679:
680: sub show_queue {
681: my ($queue,$with_selects)=@_;
682: my $result;
683: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
684: my $cnum=$env{'course.'.$cid.'.num'};
685: my $cdom=$env{'course.'.$cid.'.domain'};
686: my $regexp="^$symb\0";
687: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
688: my ($tmp)=%queue;
689: if ($tmp=~/^error: 2 /) {
690: return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
691: }
692: $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
693: if ($with_selects) { $result.="<th></th>"; }
694: $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
695: foreach my $key (sort(keys(%queue))) {
696: if ($key=~/locked$/ && !$with_selects) {
697: my ($symb,$uname,$udom) = &decode_queue_key($key);
698: my $title=&Apache::lonnet::gettitle($symb);
699: $result.="<tr><td>$title</td><td>$uname</td>";
700: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
701: } elsif ($key=~/timestamp$/ && !$with_selects) {
702: my ($symb,undef) = split("\0",$key);
703: my $title=&Apache::lonnet::gettitle($symb);
704: $result.="<tr><td>$title</td><td></td>";
705: $result.='<td>last queue modification time</td><td>'.
706: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
707: } elsif ($key!~/(timestamp|locked)$/) {
708: my ($symb,$uname,$udom) = &decode_queue_key($key);
709: my $title=&Apache::lonnet::gettitle($symb);
710: $result.="<tr>";
711: my $slot=$queue{$key}->[0];
712: my %slot_data=&Apache::lonnet::get_slot($slot);
713: if ($with_selects) {
714: my $ekey=&Apache::lonnet::escape($key);
715: my ($action,$description)=('select',&mt('Select'));
716: if (exists($queue{"$key\0locked"})) {
717: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
718: if ($me eq $queue{"$key\0locked"}) {
719: ($action,$description)=('resume',&mt('Resume'));
720: } else {
721: ($action,$description)=('unlock',&mt('Unlock'));
722: }
723: }
724: if (time > $slot_data{'endtime'}) {
725: $result.=(<<FORM);
726: <td>
727: <form method="POST">
728: <input type="hidden" name="gradingkey" value="$ekey" />
729: <input type="hidden" name="queue" value="$queue" />
730: <input type="hidden" name="gradingaction" value="$action" />
731: <input type="hidden" name="webgrade" value="no" />
732: <input type="hidden" name="queuemode" value="selected" />
733: <input type="submit" name="submit" value="$description" />
734: </form>
735: </td>
736: FORM
737:
738: } else {
739: $result.='<td>'.&mt("In Progress").'</td>'
740: }
741: }
742: $result.="<td>$title</td><td>$uname</td>";
743: $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
744: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
745: "</td></tr>";
746: }
747: }
748: $result.="</table><hr />\n";
749: return $result;
750: }
751:
752: sub get_queue_counts {
753: my ($queue)=@_;
754: my $result;
755: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
756: my $cnum=$env{'course.'.$cid.'.num'};
757: my $cdom=$env{'course.'.$cid.'.domain'};
758: my $regexp="^$symb\0";
759: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
760: my ($tmp)=%queue;
761: if ($tmp=~/^error: 2 /) {
762: return (0,0,0);
763: }
764: my ($entries,$ready_to_grade,$locks)=(0,0,0);
765: foreach my $key (sort(keys(%queue))) {
766: if ($key=~/locked$/) {
767: $locks++;
768: } elsif ($key=~/timestamp$/) {
769: #ignore
770: } elsif ($key!~/(timestamp|locked)$/) {
771: my ($symb,$uname,$udom) = &decode_queue_key($key);
772: $entries++;
773: my $slot=$queue{$key}->[0];
774: my %slot_data=&Apache::lonnet::get_slot($slot);
775: if (time > $slot_data{'endtime'}) {
776: $ready_to_grade++;
777: }
778: }
779: }
780: return ($entries,$ready_to_grade,$locks);
781: }
782:
783: sub decode_queue_key {
784: my ($key)=@_;
785: my ($symb,undef,$user) = split("\0",$key);
786: my ($uname,$udom) = split('@',$user);
787: return ($symb,$uname,$udom);
788: }
789:
790: sub queue_key_locked {
791: my ($queue,$key,$cdom,$cnum)=@_;
792: if (!defined($cdom) || !defined($cnum)) {
793: my (undef,$cid)=&Apache::lonxml::whichuser();
794: $cnum=$env{'course.'.$cid.'.num'};
795: $cdom=$env{'course.'.$cid.'.domain'};
796: }
797: my ($key_locked,$value)=
798: &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
799: if ($key_locked eq "$key\0locked") {
800: return $value;
801: }
802: return undef;
803: }
804:
805: sub pick_from_queue_data {
806: my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
807: foreach my $key (keys(%$queuedata)) {
808: my ($symb,$uname,$udom)=&decode_queue_key($key);
809: if ($check_section) {
810: my $section=&Apache::lonnet::getsection($uname,$udom);
811: if ($section eq $check_section) {
812: &Apache::lonxml::debug("my sec");
813: next;
814: }
815: }
816: my $slot=$queuedata->{$key}[0];
817: my %slot_data=&Apache::lonnet::get_slot($slot);
818: if ($slot_data{'endtime'} > time) {
819: &Apache::lonxml::debug("not time");
820: next;
821: }
822: if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
823: &Apache::lonxml::debug("someone already has um.");
824: next;
825: }
826: return $key;
827: }
828: return undef;
829: }
830:
831: sub find_mid_grade {
832: my ($queue,$symb,$cdom,$cnum)=@_;
833: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
834: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
835: if ($todo) {
836: my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
837: if ($who eq $me) { return $todo; }
838: }
839: my $regexp="^$symb\0.*\0locked\$";
840: my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
841: foreach my $key (keys(%locks)) {
842: my $who=$locks{$key};
843: if ($who eq $me) {
844: $todo=$key;
845: $todo=~s/\0locked$//;
846: return $todo;
847: }
848: }
849: return undef;
850: }
851:
852: sub lock_key {
853: my ($queue,$todo)=@_;
854: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
855: my (undef,$cid)=&Apache::lonxml::whichuser();
856: my $cnum=$env{'course.'.$cid.'.num'};
857: my $cdom=$env{'course.'.$cid.'.domain'};
858: my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
859: $cdom,$cnum);
860: &Apache::lonxml::debug("success $success $todo");
861: if ($success eq 'ok') {
862: return 1;
863: }
864: return 0;
865: }
866:
867: sub get_from_queue {
868: my ($queue)=@_;
869: my $result;
870: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
871: my $cnum=$env{'course.'.$cid.'.num'};
872: my $cdom=$env{'course.'.$cid.'.domain'};
873: my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
874: &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
875: if ($todo) { return $todo; }
876: while (1) {
877: my $starttime=time;
878: &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
879: $cdom,$cnum);
880: &Apache::lonxml::debug("$starttime");
881: my $regexp="^$symb\0queue\0";
882: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
883: #make a pass looking for a user _not_ in my section
884: if ($env{'request.course.sec'}) {
885: &Apache::lonxml::debug("sce");
886: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
887: \%queue,$cdom,$cnum);
888: &Apache::lonxml::debug("sce $todo");
889: }
890: # no one _not_ in our section so look for any user that is
891: # ready for grading
892: if (!$todo) {
893: &Apache::lonxml::debug("no sce");
894: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
895: \%queue,$cdom,$cnum);
896: &Apache::lonxml::debug("no sce $todo");
897: }
898: # no user to grade
899: if (!$todo) { last; }
900: &Apache::lonxml::debug("got $todo");
901: # otherwise found someone so lets try to lock them
902: # unless someone else already picked them
903: if (!&lock_key($queue,$todo)) { next; }
904: my (undef,$endtime)=
905: &Apache::lonnet::get($queue,["$symb\0timestamp"],
906: $cdom,$cnum);
907: &Apache::lonxml::debug("emd $endtime");
908: # someone else already modified the queue,
909: # perhaps our picked user wass already fully graded between
910: # when we picked him and when we locked his record? so lets
911: # double check.
912: if ($endtime != $starttime) {
913: my ($key,$value)=
914: &Apache::lonnet::get($queue,["$todo"],
915: $cdom,$cnum);
916: &Apache::lonxml::debug("check $key .. $value");
917: if ($key eq $todo && ref($value)) {
918: } else {
919: &Apache::lonnet::del($queue,["$todo\0locked"],
920: $cdom,$cnum);
921: &Apache::lonxml::debug("del");
922: next;
923: }
924: }
925: &Apache::lonxml::debug("last $todo");
926: last;
927: }
928: return $todo;
929: }
930:
931: sub start_ClosingParagraph {
932: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
933: my $result;
934: if ($target eq 'web') {
935: } elsif ($target eq 'webgrade') {
936: &Apache::lonxml::startredirection();
937: }
938: return $result;
939: }
940:
941: sub end_ClosingParagraph {
942: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
943: my $result;
944: if ($target eq 'web') {
945: } elsif ($target eq 'webgrade') {
946: &Apache::lonxml::endredirection();
947: }
948: return $result;
949: }
950:
951: sub get_id {
952: my ($parstack,$safeeval)=@_;
953: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
954: if (!$id) { $id=$Apache::lonxml::curdepth; }
955: return $id;
956: }
957:
958: my %dimension;
959: sub start_Dimension {
960: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
961: undef(%dimension);
962: my $dim_id=&get_id($parstack,$safeeval);
963: $Apache::bridgetask::dimension=$dim_id;
964: push(@Apache::bridgetask::dimensionlist,$dim_id);
965: undef(@Apache::bridgetask::instance);
966: $Apache::bridgetask::dimensionmandatory{$dim_id}=
967: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
968: return '';
969: }
970:
971: sub get_instance {
972: &Apache::response::pushrandomnumber();
973: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
974: my $num=@order;
975: my $version=&get_version();
976: my $which=($version-1)%$num;
977: return $order[$which];
978: }
979:
980: {
981: my $last_link;
982: sub end_Dimension {
983: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
984: my $result;
985: my $dim=&get_id($parstack,$safeeval);
986: my $instance=&get_instance();
987: my $version=&get_version();
988: if ($target eq 'web') {
989: $result=$dimension{'intro'}.$dimension{$instance.'.text'};
990: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
991: $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
992: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
993: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
994: my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
995: $result.='<table border="1"><tr><td>';
996: if ($status eq 'fail') {
997: $result.='<font color="red">'.&mt('Did not pass').'</font>';
998: } elsif ($status eq 'pass') {
999: $result.='<font color="green">'.&mt('Passed').'</font>';
1000: } else {
1001: &Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
1002: }
1003: $result.='</td></tr><tr><td>';
1004: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
1005: $result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
1006: }
1007: $result.=$dimension{$instance.'.criteria.'.$id}.
1008: '</td></tr></table>';
1009: }
1010: }
1011: } elsif ($target eq 'webgrade') {
1012: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1013: my $link='criteria_'.$instance.'_'.$id;
1014: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1015: $result.='<tr><td width="100%" valign="top">'.
1016: '<a name="'.$link.'" />'.
1017: '<a name="next_'.$last_link.'" />'.
1018: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
1019: #$dimension{$instance.'.criteria.'.$id}.
1020: '</td>'.
1021: '<td><nobr>Additional Comment for Student</nobr> <br />'.
1022: '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
1023: '</td>'.
1024: '<td>'.
1025: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>'.&mt('Ungraded').'</label></nobr><br />'.
1026: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
1027: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
1028: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1029: '</td>'.
1030: '<td>'.
1031: '<a href="#'.$last_link.'">Prev</a><br />'.
1032: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
1033: '<input type="submit" name="next" value="'.
1034: &mt('Done').'" /> '.
1035: '<input type="submit" name="stop" value="'.
1036: &mt('Stop').'" /> '.
1037: '</td></tr>';
1038: $result.='<tr><td colspan="4">';
1039: my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
1040: my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
1041: foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
1042: my $file=$file_url.$partial_file;
1043: &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
1044: $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
1045: &Apache::loncommon::icon($file).'" border=0"> '.$file.
1046: '</a>';
1047: }
1048: $result.='</td></tr>';
1049: $last_link=$link;
1050: }
1051: } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1052: my $optional_passed=0;
1053: my $mandatory_failed=0;
1054: my $ungraded=0;
1055: my $review=0;
1056: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1057: my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
1058: $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1059: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
1060: if ($status eq 'pass') {
1061: if (!$mandatory) { $optional_passed++; }
1062: } elsif ($status eq 'fail') {
1063: if ($mandatory) { $mandatory_failed++; }
1064: } elsif ($status eq 'review') {
1065: $review++;
1066: } elsif ($status eq 'ungraded') {
1067: $ungraded++;
1068: } else {
1069: &Apache::lonxml::error("got weird status --$status--");
1070: }
1071: }
1072: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
1073: $mandatory_failed++;
1074: }
1075: &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1076: if ($review) {
1077: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1078: 'review';
1079: } elsif ($ungraded) {
1080: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1081: 'ungraded';
1082: } elsif ($mandatory_failed) {
1083: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1084: 'fail';
1085: } else {
1086: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1087: 'pass';
1088: }
1089: }
1090: return $result;
1091: }
1092: }
1093:
1094: sub start_IntroParagraph {
1095: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1096: my $result;
1097: if ($target eq 'web' || $target eq 'webgrade') {
1098: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1099: &Apache::lonxml::startredirection();
1100: }
1101: }
1102: return $result;
1103: }
1104:
1105: sub end_IntroParagraph {
1106: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1107: my $result;
1108: if ($target eq 'web' || $target eq 'webgrade') {
1109: if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1110: $dimension{'intro'}=&Apache::lonxml::endredirection();
1111: }
1112: }
1113: return $result;
1114: }
1115:
1116: sub start_Instance {
1117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1118: my $id=&get_id($parstack,$safeeval);
1119: push(@{$dimension{'instances'}},$id);
1120: push(@Apache::bridgetask::instance,$id);
1121: push(@Apache::bridgetask::instancelist,$id);
1122: $dimension{$id.'.optionalrequired'}=
1123: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1124: return '';
1125: }
1126:
1127: sub end_Instance {
1128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1129: return '';
1130: }
1131:
1132: sub start_InstanceText {
1133: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1134: if ($target eq 'web' || $target eq 'webgrade') {
1135: &Apache::lonxml::startredirection();
1136: }
1137: return '';
1138: }
1139:
1140: sub end_InstanceText {
1141: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1142: my $instance_id=$Apache::bridgetask::instance[-1];
1143: if ($target eq 'web' || $target eq 'webgrade') {
1144: $dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
1145: }
1146: return '';
1147: }
1148:
1149: sub start_Criteria {
1150: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1151: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1152: &Apache::lonxml::startredirection();
1153: }
1154: return '';
1155: }
1156:
1157: sub end_Criteria {
1158: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1159: my $instance_id=$Apache::bridgetask::instance[-1];
1160: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1161: my $criteria=&Apache::lonxml::endredirection();
1162: my $id=&get_id($parstack,$safeeval);
1163: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
1164: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
1165: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1166: push(@{$dimension{$instance_id.'.criterias'}},$id);
1167: }
1168: return '';
1169: }
1170:
1171: sub proctor_validation_screen {
1172: my ($slot) = @_;
1173: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1174: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1175: $user=$env{'form.proctorname'};
1176: if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
1177: my $msg;
1178: if ($env{'form.proctorpassword'}) {
1179: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
1180: .'</font></p>';
1181: }
1182: my $result= (<<ENDCHECKOUT);
1183: <h2>Proctor Validation</h2>
1184: <p>Your room's proctor needs to validate your access to this resource.</p>
1185: $msg
1186: <form name="checkout" method="POST" action="$env{'request.uri'}">
1187: <input type="hidden" name="validate" value="yes" />
1188: <input type="hidden" name="submitted" value="yes" />
1189: <table>
1190: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
1191: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1192: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
1193: </table>
1194: <input type="submit" name="checkoutbutton" value="Validate" /><br />
1195: Student who should be logged in is:<br />
1196: <img src="$url" /><br />
1197: </form>
1198: ENDCHECKOUT
1199: return $result;
1200: }
1201:
1202: 1;
1203: __END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to bridgetask.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework