1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
3: #
4: # $Id: bridgetask.pm,v 1.70 2005/10/14 16:23:39 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 $result;
144: }
145:
146: sub add_grading_button {
147: my (undef,$cid)=&Apache::lonxml::whichuser();
148: my $cnum=$env{'course.'.$cid.'.num'};
149: my $cdom=$env{'course.'.$cid.'.domain'};
150: my %sections;
151: my $numsections=&Apache::loncommon::get_sections($cdom,$cnum,\%sections);
152: my $size=5;
153: if (scalar(keys(%sections)) < 3) {
154: $size=scalar(keys(%sections))+2;
155: }
156: my $sec_select = '<select multiple name="chosensections" size="'.$size.'">'."\n";
157: $sec_select .= "<option value='all' selected='selected'>all</option>\n";
158: foreach my $sec (sort {lc($a) cmp lc($b)} (keys(%sections))) {
159: $sec_select .= "<option name=\"$sec\">$sec</option>\n";
160: }
161: $sec_select .= "<option value='none'>none</option></select>\n";
162:
163: my $result=' <input type="submit" name="gradeasubmission" value="'.
164: &mt("Get a submission to grade").'" />';
165: $result.='<input type="hidden" name="grade_target" value="webgrade" />';
166: if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
167: my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
168: $result.='<p>Specify a section: '.$sec_select.'</p>';
169: $result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
170:
171: $result.=' <input type="submit" name="reviewagrading" value="'.
172: &mt("Select an entry from the grading queue").'" /> </p>'."\n";
173:
174: ($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
175: $result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
176: $result.=' <input type="submit" name="reviewasubmission" value="'.
177: &mt("Select an entry from the review queue").'" /> </p>'."\n";
178: $result.=' <input type="submit" name="regradeasubmission" value="'.
179: &mt("Select a user to regrade.").'" /> </p>'."\n";
180: }
181: return $result;
182: }
183:
184: sub add_request_another_attempt_button {
185: my ($text)=@_;
186: if (!$text) { $text="Request another attempt"; }
187: my $result;
188: my $symb=&Apache::lonnet::symbread();
189: my ($slot_name,$slot)=&Apache::slotrequest::check_for_reservation($symb);
190: my $action='get_reservation';
191: if ($slot_name) {
192: $text="Change reservation.";
193: $action='change_reservation';
194: my $description=&Apache::slotrequest::get_description($slot_name,
195: $slot);
196: $result.=(<<STUFF);
197: <p> Will be next available: $description </p>
198: STUFF
199: }
200:
201: if ($env{'request.enc'}) { $symb=&Apache::lonenc::encrypted($symb); }
202: $symb=&Apache::lonnet::escape($symb);
203: $result.='<form method="POST" action="/adm/slotrequest">'.
204: '<input type="hidden" name="symb" value="'.$symb.'" />'.
205: '<input type="hidden" name="command" value="'.$action.'" />'.
206: '<input type="submit" name="requestattempt" value="'.
207: &mt($text).'" />'.
208: '</form>';
209: return $result;
210: }
211:
212: sub preserve_grade_info {
213: my $result;
214: # if we are viewing someone else preserve that info
215: if (defined $env{'form.grade_symb'}) {
216: foreach my $field ('symb','courseid','domain','username') {
217: $result .= '<input type="hidden" name="grade_'.$field.
218: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
219: }
220: }
221: return $result;
222: }
223:
224: sub style {
225: return (<<STYLE);
226: <style type="text/css">
227: .fail, .pass, .neutral {
228: position: relative;
229: margin : 5px;
230: margin-bottom :10px;
231: padding : 4px;
232: padding-left : 75px;
233: border : thin solid;
234: font-weight : bolder;
235: font-size: smaller;
236: font-family: Arial;
237: background-color : rgb(255,240,225);
238: }
239:
240: .fail h4, .pass h4 {
241: position:absolute;
242: left: -4px;
243: top: -8px;
244: padding:2px;
245: margin:0;
246: background-color : rgb(255,240,225);
247: border : thin solid;
248: }
249:
250: .fail {
251: color: red;
252: }
253:
254: .pass {
255: color : green;
256: }
257:
258: .neutral {
259: color : blue;
260: }
261:
262: .question {
263: border : thin solid black;
264: padding : 4px;
265: margin-bottom : 1em;
266: }
267:
268: .grade {
269: font-size: x-large;
270: font-family: Arial;
271: position:absolute;
272: left: 5px;
273: top: -5px;
274: width: 70px;
275: }
276:
277: div#feedback h1 {
278: color : inherit;
279: }
280: </style>
281: STYLE
282:
283: }
284:
285: sub show_task {
286: my ($status,$previous)=@_;
287: if (!$previous && (
288: ( $status eq 'CLOSED' ) ||
289: ( $status eq 'BANNED') ||
290: ( $status eq 'UNAVAILABLE') ||
291: ( $status eq 'NOT_IN_A_SLOT') ||
292: ( $status eq 'NEEDS_CHECKIN') ||
293: ( $status eq 'WAITING_FOR_GRADE') ||
294: ( $status eq 'INVALID_ACCESS') )) {
295: return 0;
296: }
297: if ($env{'form.donescreen'}) { return 0; }
298: return 1;
299: }
300:
301: sub internal_location {
302: my ($id)=@_;
303: return '<!-- LONCAPA_INTERNAL_ADD_TASK_STATUS'.$id.' -->';
304: }
305:
306: sub submission_time_stamp {
307: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
308: my $submissiontime;
309: my $version=$Apache::lonhomework::history{'resource.version'};
310: for (my $v=$Apache::lonhomework::history{'version'};$v>0;$v--) {
311: if (defined($Apache::lonhomework::history{$v.':resource.'.$version.'.0.bridgetask.portfiles'})) {
312: $submissiontime=$Apache::lonhomework::history{$v.':timestamp'};
313: }
314: }
315: my $result;
316: if ($submissiontime) {
317: my $slot_name=$Apache::lonhomework::history{'resource.'.$version.'.checkedin.slot'};
318: my %slot=&Apache::lonnet::get_slot($slot_name);
319: my $diff = $slot{'endtime'} - $submissiontime;
320: my ($color,$when)=('red','after');
321: if ($diff > 0) { ($color,$when)=('green','before'); }
322: my $info;
323: if ($diff%60) { $info=($diff%60).' seconds'; }
324: $diff=int($diff/60);
325: if ($diff%60) { $info=($diff%60).' minutes '.$info; }
326: $diff=int($diff/60);
327: if ($diff) { $info=$diff.' hours '.$info; }
328: $result='<p><font color="'.$color.'">'.
329: &mt('Student submitted [_1] [_2] the deadline.
330: (Submission was at [_3], end of period was [_4].)',
331: $info,$when,scalar(localtime($submissiontime)),
332: scalar(localtime($slot{'endtime'}))).
333: '</font></p>';
334: }
335: return $result;
336: }
337:
338: sub webgrade_standard_info {
339: my ($version)=&get_version();
340: my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
341: my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio/';
342: my $file_list="<ul>\n";
343: foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"})) {
344: my $file=$file_url.$partial_file;
345: $file=~s|/+|/|g;
346: &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
347: $file_list.='<li><nobr><a href="'.$file.'" target="lonGRDs"><img src="'.
348: &Apache::loncommon::icon($file).'" border=0"> '.$file.
349: '</a></nobr></li>'."\n";
350: }
351: $file_list.="</ul>\n";
352:
353: my %lt=&Apache::lonlocal::texthash('done' => 'Done',
354: 'stop' => 'Stop',
355: );
356:
357: my $result=<<INFO;
358: <div class="handininfo">
359: <input type="submit" name="next" value="$lt{'done'}" />
360: <input type="submit" name="stop" value="$lt{'stop'}" />
361: $file_list
362: </div>
363: INFO
364: return $result;
365: }
366:
367: sub start_Task {
368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
369:
370: my ($status,$accessmsg,$slot);
371: if ($target ne 'webgrade') {
372: &Apache::structuretags::init_problem_globals('Task');
373: &Apache::structuretags::initialize_storage();
374: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
375: }
376:
377: $Apache::lonhomework::parsing_a_task=1;
378: #should get back a <html> or the neccesary stuff to start XML/MathML
379: my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
380: &Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
381:
382: if ($target eq 'web') {
383: if ($Apache::lonhomework::modifygrades) {
384: $body_tag_start.='<form name="gradesubmission" method="POST" action="';
385: my $uri=$env{'request.uri'};
386: if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
387: $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
388: my $symb=&Apache::lonnet::symbread();
389: if (&Apache::lonnet::allowed('mgq',$env{'request.course.id'})) {
390: $body_tag_start.='<form method="POST" action="/adm/slotrequest">'.
391: '<input type="hidden" name="symb" value="'.$symb.'" />'.
392: '<input type="hidden" name="command" value="showslots" />'.
393: '<input type="submit" name="requestattempt" value="'.
394: &mt('Show Slot list').'" />'.
395: '</form>';
396: }
397: }
398: }
399: if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
400: $target eq 'tex') {
401: my ($version,$previous)=&get_version();
402: ($status,$accessmsg,my $slot_name,$slot) =
403: &Apache::lonhomework::check_task_access('0');
404: push(@Apache::inputtags::status,$status);
405: $Apache::inputtags::slot_name=$slot_name;
406: my $expression='$external::datestatus="'.$status.'";';
407: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
408: &Apache::run::run($expression,$safeeval);
409: &Apache::lonxml::debug("Got $status");
410: $body_tag_start.=&add_previous_version_button($status);
411: if (!&show_task($status,$previous)) {
412: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
413: if ( $target eq "web" ) {
414: $result.= $head_tag_start.'</head>'.$body_tag_start;
415: my $msg;
416: if ($status eq 'UNAVAILABLE') {
417: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
418: } elsif ($status eq 'NOT_IN_A_SLOT') {
419: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
420: $msg.=&add_request_another_attempt_button("Sign up for time to work.");
421: } elsif ($status eq 'NEEDS_CHECKIN') {
422: $msg.='<h1>'.&mt('You need the Proctor to validate you.').
423: '</h1>'.&proctor_validation_screen($slot);
424: } elsif ($status eq 'WAITING_FOR_GRADE') {
425: $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
426: } elsif ($env{'form.donescreen'}) {
427: my $title=&Apache::lonnet::gettitle();
428: my @files=split(',',$Apache::lonhomework::history{'resource.'.$version.'.0.bridgetask.portfiles'});
429: my $files='<ul><li>'.join('</li><li>',@files).'</li></ul>';
430: $result.=<<DONESCREEN;
431: <h2>$title</h2>
432: <p> Files submitted: $files </p>
433: <p> You are now done with this Bridge Task </p>
434: <hr />
435: <p> <a href="/adm/logout">Logout</a> </p>
436: <p> <a href="/adm/roles">Change to a different course</a> </p>
437: DONESCREEN
438: } elsif ($status ne 'NOT_YET_VIEWED') {
439: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
440: }
441: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
442: $msg.='The problem '.$accessmsg;
443: }
444: $result.=$msg.'<br />';
445: } elsif ($target eq 'tex') {
446: $result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
447: if ($status eq 'UNAVAILABLE') {
448: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
449: } else {
450: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
451: }
452: } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
453: if ($status eq 'NEEDS_CHECKIN') {
454: &proctor_check_auth($slot_name,$slot);
455: }
456: }
457: } elsif ($target eq 'web') {
458: my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
459: $result.="$head_tag_start<title>$name</title></head>
460: $body_tag_start \n".&style();
461:
462: $result.=&preserve_grade_info();
463: $result.=&internal_location();
464: $result.=$form_tag_start.
465: '<input type="hidden" name="submitted" value="yes" />';
466: &Apache::lonxml::startredirection();
467: }
468: } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
469: $target eq 'webgrade') {
470: my $webgrade='yes';
471: if ($target eq 'webgrade') {
472: $result.=$head_tag_start.$body_tag_start;
473: #$result.='<br />Review'.&show_queue('reviewqueue');
474: #$result.='<br />Grade'.&show_queue('gradingqueue');
475: }
476: # FIXME Blast! still need to reorg this, need to reshow the
477: # queue being reviewed once done with the grade pass...
478: # Hrrm, vaildation pass should perhaps say 'not_locked'
479: # perhaps do a search if there is a key that is mine and if
480: # there isn't reshow the queue....
481: my ($todo,$status_code)=&get_key_todo($target);
482:
483: if ($todo) {
484: &setup_env_for_other_user($todo,$safeeval);
485: my ($symb,$uname,$udom)=&decode_queue_key($todo);
486: $result.="\n".'<table><tr><td>Found '.
487: &Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
488: $form_tag_start.=
489: '<input type="hidden" name="gradingkey" value="'.
490: &Apache::lonnet::escape($todo).'" />';
491: $Apache::bridgetask::queue_key=$todo;
492: &Apache::structuretags::initialize_storage();
493: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
494: if ($target eq 'webgrade') {
495: #$result.='<br />After -'.&show_queue($env{'form.queue'});
496: $result.="\n".'<table width="100%" style="width:100%" border="1">';
497: if ($status_code eq 'selected') {
498: $form_tag_start.=
499: '<input type="hidden" name="queuemode" value="selected" />';
500: }
501: }
502: } else {
503: if ($target eq 'webgrade') {
504: $result.="\n";
505: if ($status_code eq 'stop') {
506: $result.='<b>'.&mt("Stopped grading.").'</b>';
507: } elsif ($status_code eq 'lock_failed') {
508: $result.='<b>'.&mt("Failed to lock the request record.").'</b>';
509: } elsif ($status_code eq 'unlock') {
510: $result.='<b>'.&mt("Unlocked the requested record.").'</b>';
511: $result.=&show_queue($env{'form.queue'},1);
512: } elsif ($status_code eq 'show_list') {
513: $result.=&show_queue($env{'form.queue'},1);
514: } elsif ($status_code eq 'select_user') {
515: $result.=&select_user();
516: } else {
517: $result.='<b>'.&mt("No user to be graded.").'</b>';
518: }
519: }
520: $webgrade='no';
521: my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
522: }
523: if ($target eq 'webgrade' && defined($env{'form.queue'})) {
524: if ($webgrade eq 'yes') {
525: $result.=&submission_time_stamp();
526: }
527: $result.=$form_tag_start;
528: $result.='<input type="hidden" name="webgrade" value="'.
529: $webgrade.'" />';
530: $result.='<input type="hidden" name="queue" value="'.
531: $env{'form.queue'}.'" />';
532: if ($env{'form.regrade'}) {
533: $result.='<input type="hidden" name="regrade" value="'.
534: $env{'form.regrade'}.'" />';
535: }
536: if ($env{'form.chosensections'}) {
537: my @chosen_sections=
538: &Apache::loncommon::get_env_multiple('form.chosensections');
539: foreach my $sec (@chosen_sections) {
540: $result.='<input type="hidden" name="chosensections"
541: value="'.$sec.'" />';
542: }
543: }
544: if ($webgrade eq 'yes') { $result.=&webgrade_standard_info(); }
545: }
546: } else {
547: # page_start returned a starting result, delete it if we don't need it
548: $result = '';
549: }
550: return $result;
551: }
552:
553: sub get_key_todo {
554: my ($target)=@_;
555: my $todo;
556:
557: if (defined($env{'form.reviewasubmission'})) {
558: &Apache::lonxml::debug("review a submission....");
559: $env{'form.queue'}='reviewqueue';
560: return (undef,'show_list');
561: }
562:
563: if (defined($env{'form.reviewagrading'})) {
564: &Apache::lonxml::debug("review a grading....");
565: $env{'form.queue'}='gradingqueue';
566: return (undef,'show_list');
567: }
568:
569: if (defined($env{'form.regradeasubmission'})) {
570: &Apache::lonxml::debug("regrade a grading....");
571: $env{'form.queue'}='none';
572: return (undef,'select_user');
573: }
574:
575: my $queue=$env{'form.queue'};
576:
577: if (!defined($queue)) {
578: $env{'form.queue'}=$queue='gradingqueue';
579: }
580:
581: my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
582:
583: if ($env{'form.queue'} eq 'none') {
584: if (defined($env{'form.gradingkey'})) {
585: if ($target eq 'webgrade') {
586: if ($env{'form.stop'}) {
587: return (undef,'stop');
588: } elsif ($env{'form.next'}) {
589: return (undef,'select_user');
590: }
591: }
592: return ($gradingkey,'selected');
593: } else {
594: return (undef,'select_user');
595: }
596: }
597: if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
598: && !defined($env{'form.gradingaction'})
599: && $env{'form.queuemode'} eq 'selected') {
600:
601: my $who=&queue_key_locked($queue,$gradingkey);
602: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
603: if ($who eq $me) {
604: &Apache::lonxml::debug("Found a key was given to me");
605: return ($gradingkey,'selected');
606: } else {
607: return (undef,'show_list');
608: }
609:
610: }
611:
612: if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
613: if ($env{'form.gradingaction'} eq 'resume') {
614: delete($env{'form.gradingaction'});
615: &Apache::lonxml::debug("Resuming a key");
616: return ($gradingkey);
617: } elsif ($env{'form.gradingaction'} eq 'unlock') {
618: &Apache::lonxml::debug("Unlocking a key ".
619: &check_queue_unlock($queue,$gradingkey,1));
620: return (undef,'unlock');
621: } elsif ($env{'form.gradingaction'} eq 'select') {
622: &Apache::lonxml::debug("Locking a key");
623: if (&lock_key($queue,$gradingkey)) {
624: &Apache::lonxml::debug("Success $queue");
625: return ($gradingkey);
626: }
627: &Apache::lonxml::debug("Failed $queue");
628: return (undef,'lock_failed');
629: }
630: }
631:
632: if ($env{'form.queuemode'} ne 'selected') {
633: # don't get something new from the queue if they hit the stop button
634: if (!($env{'form.stop'} && $target eq 'webgrade')
635: && !$env{'form.gradingaction'}) {
636: &Apache::lonxml::debug("Getting anew $queue");
637: return (&get_from_queue($queue));
638: } else {
639: return (undef,'stop');
640: }
641: }
642: return (undef,undef)
643: }
644:
645: sub end_Task {
646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
647: my $result='';
648: my $status=$Apache::inputtags::status['-1'];
649: my ($version,$previous)=&get_version();
650: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
651: $target eq 'tex') {
652: if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
653: if ($target eq 'web') {
654: if (&show_task($status,$previous)) {
655: $result.=&Apache::lonxml::endredirection();
656: }
657: if ($status eq 'CAN_ANSWER' && !$previous &&
658: !$env{'form.donescreen'}) {
659: $result.="\n".'<table border="1">'.
660: &Apache::inputtags::file_selector("$version.0",
661: "bridgetask","*",
662: 'portfolioonly',
663: '
664: <h2>'.&mt('Submit Portfolio Files for Grading').'</h2>
665: <p>'.&mt('Indicate the files from your portfolio to be evaluated in grading this task.').'</p>').
666: "</table>";
667: $result.=&Apache::inputtags::gradestatus('0');
668: $result.='</form>';
669: $result.=<<DONEBUTTON;
670: <form method="POST">
671: <input type="hidden" name="donescreen" value="1" />
672: <input type="submit" value="Done" />
673: </form>
674: DONEBUTTON
675: }
676: if (&show_task($status,$previous) &&
677: $Apache::lonhomework::history{"resource.$version.status"} =~ /^(pass|fail)$/) {
678: my $bt_status=$Apache::lonhomework::history{"resource.$version.status"};
679: my $title=&Apache::lonnet::gettitle();
680: my %slot=&Apache::lonnet::get_slot($Apache::inputtags::slot_name);
681: my $start_time=
682: &Apache::lonlocal::locallocaltime($slot{'starttime'});
683:
684: my $status;
685: $status.="\n<div class='$bt_status'>\n";
686:
687: if ($bt_status eq 'pass') {
688: $status.='<h2>You passed the '.$title.' given on '.
689: $start_time.'.</h2>';
690: }
691: if ($bt_status eq 'fail') {
692: $status.='<h2>You did not pass the '.$title.' given on '.
693: $start_time.'.</h2>';
694: if (!$previous) {
695: $status.=&add_request_another_attempt_button();
696: }
697: }
698: my $man_count=0;
699: my $opt_count=0;
700: my $opt_passed=0;
701: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
702: if ($Apache::bridgetask::dimensionmandatory{$dim_id}
703: eq 'N') {
704: $opt_count++;
705: if ($Apache::lonhomework::history{"resource.$version.$dim_id.status"} eq 'pass') {
706: $opt_passed++;
707: }
708: } else {
709: $man_count++;
710: }
711: }
712: my $opt_req=&Apache::lonxml::get_param('OptionalRequired',
713: $parstack,$safeeval);
714: if ($opt_req !~ /\S/) { $opt_req='0'; }
715: $status.="\n<p>".&mt('You needed to pass all of the [_1] mandatory components and [_2] of the [_3] optional components on the bridge task.',$man_count,$opt_req,$opt_count)."</p></div>\n";
716:
717: my $internal_location=&internal_location();
718: $result=~s/\Q$internal_location\E/$status/;
719: }
720: }
721: if ($target eq 'web' || $target eq 'webgrade') {
722: $result.=&Apache::lonxml::xmlend().'</html>';
723: }
724: }
725: if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
726: my $award='SUBMITTED';
727: &Apache::essayresponse::file_submission("$version.0",'bridgetask',
728: 'portfiles',\$award);
729: if ($award eq 'SUBMITTED' &&
730: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
731: $Apache::lonhomework::results{"resource.0.tries"}=
732: $Apache::lonhomework::results{"resource.$version.0.tries"}=
733: 1+$Apache::lonhomework::history{"resource.$version.0.tries"};
734:
735: $Apache::lonhomework::results{"resource.0.award"}=
736: $Apache::lonhomework::results{"resource.$version.0.award"}=
737: $award;
738: $Apache::lonhomework::results{"resource.0.submission"}=
739: $Apache::lonhomework::results{"resource.$version.0.submission"}='';
740: } else {
741: delete($Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"});
742: }
743: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
744: &Apache::structuretags::finalize_storage();
745: if ($award eq 'SUBMITTED') {
746: &add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
747: }
748: }
749: if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
750: my $optional_required=
751: &Apache::lonxml::get_param('OptionalRequired',$parstack,
752: $safeeval);
753: my $optional_passed=0;
754: my $mandatory_failed=0;
755: my $ungraded=0;
756: my $review=0;
757: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
758: foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
759: my $status=
760: $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
761: my $mandatory=
762: ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
763: if ($status eq 'pass') {
764: if (!$mandatory) { $optional_passed++; }
765: } elsif ($status eq 'fail') {
766: if ($mandatory) { $mandatory_failed++; }
767: } elsif ($status eq 'ungraded') {
768: $ungraded++;
769: } elsif ($status eq 'review') {
770: $review++;
771: } else {
772: $ungraded++;
773: }
774: }
775: if ($optional_passed < $optional_required) {
776: $mandatory_failed++;
777: }
778: &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
779: $Apache::lonhomework::results{'resource.grader'}=
780: $env{'user.name'}.'@'.$env{'user.domain'};
781: if ($review) {
782: $Apache::lonhomework::results{"resource.$version.status"}='review';
783: if ($env{'form.queue'} eq 'reviewqueue') {
784: &check_queue_unlock($env{'form.queue'});
785: &Apache::lonxml::debug(" still needs review not changing status.");
786: } else {
787: &move_between_queues($env{'form.queue'},'reviewqueue');
788: }
789: } elsif ($ungraded) {
790: $Apache::lonhomework::results{"resource.$version.status"}='ungraded';
791: if ($env{'form.queue'} eq 'reviewqueue' ||
792: $env{'form.queue'} eq 'none' ) {
793: &Apache::lonxml::debug("moving back.");
794: &move_between_queues($env{'form.queue'},'gradingqueue');
795: } else {
796: &check_queue_unlock($env{'form.queue'});
797: }
798: } elsif ($mandatory_failed) {
799: $Apache::lonhomework::results{"resource.$version.status"}='fail';
800: $Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
801: $Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
802: $Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
803: &remove_from_queue($env{'form.queue'});
804:
805: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
806:
807: if ($env{'form.regrade'} ne 'yes') {
808: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
809: $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
810: &Apache::grades::version_portfiles(
811: \%Apache::lonhomework::results,
812: ["$version.0.bridgetask"],$courseid,
813: $symb,$udom,$uname,
814: ["$version.0.bridgetask"]);
815: }
816: } else {
817: $Apache::lonhomework::results{"resource.$version.status"}='pass';
818: $Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
819: $Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
820: $Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
821: &remove_from_queue($env{'form.queue'});
822:
823: my ($symb,$courseid,$udom,$uname)=&Apache::lonxml::whichuser();
824: if ($env{'form.regrade'} ne 'yes') {
825: $Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}=
826: $Apache::lonhomework::history{"resource.$version.0.bridgetask.portfiles"};
827: &Apache::grades::version_portfiles(
828: \%Apache::lonhomework::results,
829: ["$version.0.bridgetask"],$courseid,
830: $symb,$udom,$uname,
831: ["$version.0.bridgetask"]);
832: }
833: }
834: $Apache::lonhomework::results{"resource.status"}=
835: $Apache::lonhomework::results{"resource.$version.status"};
836: if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
837: $Apache::lonhomework::results{"resource.0.award"}=
838: $Apache::lonhomework::results{"resource.$version.0.award"};
839: $Apache::lonhomework::results{"resource.0.awarded"}=
840: $Apache::lonhomework::results{"resource.$version.0.awarded"};
841: $Apache::lonhomework::results{"resource.0.solved"}=
842: $Apache::lonhomework::results{"resource.$version.0.solved"};
843: }
844: &Apache::structuretags::finalize_storage();
845: }
846: } elsif ($target eq 'webgrade') {
847: $result.="</table>\n<hr />";
848: #$result.='<input type="submit" name="next" value="'.
849: # &mt('Save & Next').'" /> ';
850: #$result.='<input type="submit" name="end" value="'.
851: # &mt('Save & Stop Grading').'" /> ';
852: #$result.='<input type="submit" name="throwaway" value="'.
853: # &mt('Throw Away & Stop Grading').'" /> ';
854: #$result.='<input type="submit" name="save" value="'.
855: # &mt('Save Partial Grade and Continue Grading').'" /> ';
856: $result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
857: } elsif ($target eq 'meta') {
858: $result.=&Apache::response::meta_package_write('Task');
859: $result.=&meta_stores_write('solved','string','Problem Status');
860: $result.=&meta_stores_write('tries','int_zeropos',
861: 'Number of Attempts');
862: $result.=&meta_stores_write('awarded','float',
863: 'Partial Credit Factor');
864: $result.=&meta_stores_write('status','string',
865: 'Bridge Task Status');
866: }
867: undef($Apache::lonhomework::parsing_a_task);
868: return $result;
869: }
870:
871: sub move_between_queues {
872: my ($src_queue,$dest_queue)=@_;
873: my $cur_data;
874: if ($src_queue ne 'none') {
875: $cur_data=&get_queue_data($src_queue);
876: if (!$cur_data) { return 'not_exist'; }
877: } else {
878: $cur_data = ['none'];
879: }
880: my $result=&add_to_queue($dest_queue,$cur_data->[0]);
881: if ($result ne 'ok') {
882: return $result;
883: }
884: &check_queue_unlock($src_queue);
885: return &remove_from_queue($src_queue);
886: }
887:
888: sub check_queue_unlock {
889: my ($queue,$key,$allow_not_me)=@_;
890: if ($queue eq 'none') { return 'ok'; }
891: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
892: if (!defined($key)) {
893: $key="$symb\0queue\0$uname\@$udom";
894: }
895: my $cnum=$env{'course.'.$cid.'.num'};
896: my $cdom=$env{'course.'.$cid.'.domain'};
897: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
898: my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
899: if ($who eq $me) {
900: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
901: } elsif ($allow_not_me) {
902: &Apache::lonxml::debug("unlocking $who by $me");
903: return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
904: }
905: return 'not_owner';
906: }
907:
908: sub remove_from_queue {
909: my ($queue)=@_;
910: if ($queue eq 'none') { return 'ok'; }
911: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
912: my $cnum=$env{'course.'.$cid.'.num'};
913: my $cdom=$env{'course.'.$cid.'.domain'};
914: my $key="$symb\0queue\0$uname\@$udom";
915: my @keys=($key,"$key\0locked");
916: return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
917: }
918:
919: sub setup_env_for_other_user {
920: my ($queue_key,$safeeval)=@_;
921: my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
922: &Apache::lonxml::debug("setup_env for $queue_key");
923: $env{'form.grade_symb'}=$symb;
924: $env{'form.grade_domain'}=$udom;
925: $env{'form.grade_username'}=$uname;
926: $env{'form.grade_courseid'}=$env{'request.course.id'};
927: &Apache::lonxml::initialize_rndseed($safeeval);
928: }
929:
930: sub get_queue_data {
931: my ($queue)=@_;
932: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
933: my $cnum=$env{'course.'.$cid.'.num'};
934: my $cdom=$env{'course.'.$cid.'.domain'};
935: my $todo="$symb\0queue\0$uname\@$udom";
936: my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
937: if ($key eq $todo && ref($value)) {
938: return $value;
939: }
940: return undef;
941: }
942:
943: sub check_queue_for_key {
944: my ($cid,$queue,$todo)=@_;
945: my $cnum=$env{'course.'.$cid.'.num'};
946: my $cdom=$env{'course.'.$cid.'.domain'};
947: my %results=
948: &Apache::lonnet::get($queue,[$todo,"$todo\0locked"],$cdom,$cnum);
949:
950: if (exists($results{$todo}) && ref($results{$todo})) {
951: if (defined($results{"$todo\0locked"})) {
952: return 'locked';
953: }
954: my $slot=$results{$todo}->[0];
955: my %slot_data=&Apache::lonnet::get_slot($slot);
956: if ($slot_data{'endtime'} > time) {
957: return 'in_progress';
958: }
959: return 'enqueued';
960: }
961: return undef;
962: }
963:
964: sub add_to_queue {
965: my ($queue,$slot_name)=@_;
966: if ($queue eq 'none') { return 'ok'; }
967: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
968: my $cnum=$env{'course.'.$cid.'.num'};
969: my $cdom=$env{'course.'.$cid.'.domain'};
970: my %data;
971: $data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
972: return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
973: }
974:
975: sub show_queue {
976: my ($queue,$with_selects)=@_;
977: my $result;
978: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
979: my $cnum=$env{'course.'.$cid.'.num'};
980: my $cdom=$env{'course.'.$cid.'.domain'};
981:
982: my @chosen_sections=
983: &Apache::loncommon::get_env_multiple('form.chosensections');
984: &Apache::grades::init_perm();
985: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
986: &Apache::grades::reset_perm();
987: if (!(grep(/^all$/,@chosen_sections))) {
988: $result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
989: '</tt>.</p> '."\n";
990: }
991:
992: my $regexp="^$symb\0";
993: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
994: my ($tmp)=%queue;
995: if ($tmp=~/^error: 2 /) {
996: return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
997: }
998: $result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
999: if ($with_selects) { $result.="<th></th>"; }
1000: $result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
1001: foreach my $key (sort(keys(%queue))) {
1002: my ($symb,$uname,$udom) = &decode_queue_key($key);
1003: if (!defined($classlist->{$uname.':'.$udom})) { next; }
1004: if ($key=~/locked$/ && !$with_selects) {
1005: my $title=&Apache::lonnet::gettitle($symb);
1006: $result.="<tr><td>$title</td><td>$uname</td>";
1007: $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
1008: } elsif ($key=~/timestamp$/ && !$with_selects) {
1009: my ($symb,undef) = split("\0",$key);
1010: my $title=&Apache::lonnet::gettitle($symb);
1011: $result.="<tr><td>$title</td><td></td>";
1012: $result.='<td>last queue modification time</td><td>'.
1013: &Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
1014: } elsif ($key!~/(timestamp|locked)$/) {
1015: my $title=&Apache::lonnet::gettitle($symb);
1016: $result.="<tr>";
1017: my $slot=$queue{$key}->[0];
1018: my %slot_data=&Apache::lonnet::get_slot($slot);
1019: if ($with_selects) {
1020: my $ekey=&Apache::lonnet::escape($key);
1021: my ($action,$description)=('select',&mt('Select'));
1022: if (exists($queue{"$key\0locked"})) {
1023: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
1024: if ($me eq $queue{"$key\0locked"}) {
1025: ($action,$description)=('resume',&mt('Resume'));
1026: } else {
1027: ($action,$description)=('unlock',&mt('Unlock'));
1028: }
1029: }
1030: my $seclist;
1031: foreach my $sec (@chosen_sections) {
1032: $seclist.='<input type="hidden" name="chosensections"
1033: value="'.$sec.'" />';
1034: }
1035: if (time > $slot_data{'endtime'}) {
1036: $result.=(<<FORM);
1037: <td>
1038: <form method="POST">
1039: <input type="hidden" name="gradingkey" value="$ekey" />
1040: <input type="hidden" name="queue" value="$queue" />
1041: <input type="hidden" name="gradingaction" value="$action" />
1042: <input type="hidden" name="webgrade" value="no" />
1043: <input type="hidden" name="queuemode" value="selected" />
1044: <input type="submit" name="submit" value="$description" />
1045: $seclist
1046: </form>
1047: </td>
1048: FORM
1049:
1050: } else {
1051: $result.='<td>'.&mt("In Progress").'</td>'
1052: }
1053: }
1054: $result.="<td>$title</td><td>$uname</td>";
1055: $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1056: &Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
1057: "</td></tr>";
1058: }
1059: }
1060: $result.="</table><hr />\n";
1061: return $result;
1062: }
1063:
1064: sub get_queue_counts {
1065: my ($queue)=@_;
1066: my $result;
1067: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1068: my $cnum=$env{'course.'.$cid.'.num'};
1069: my $cdom=$env{'course.'.$cid.'.domain'};
1070: my $regexp="^$symb\0";
1071: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1072: my ($tmp)=%queue;
1073: if ($tmp=~/^error: 2 /) {
1074: return (0,0,0);
1075: }
1076: my ($entries,$ready_to_grade,$locks)=(0,0,0);
1077: foreach my $key (sort(keys(%queue))) {
1078: if ($key=~/locked$/) {
1079: $locks++;
1080: } elsif ($key=~/timestamp$/) {
1081: #ignore
1082: } elsif ($key!~/(timestamp|locked)$/) {
1083: my ($symb,$uname,$udom) = &decode_queue_key($key);
1084: $entries++;
1085: my $slot=$queue{$key}->[0];
1086: my %slot_data=&Apache::lonnet::get_slot($slot);
1087: if (time > $slot_data{'endtime'}) {
1088: $ready_to_grade++;
1089: }
1090: }
1091: }
1092: return ($entries,$ready_to_grade,$locks);
1093: }
1094:
1095: sub encode_queue_key {
1096: my ($symb,$udom,$uname)=@_;
1097: return "$symb\0queue\0$uname\@$udom";
1098: }
1099:
1100: sub decode_queue_key {
1101: my ($key)=@_;
1102: my ($symb,undef,$user) = split("\0",$key);
1103: my ($uname,$udom) = split('@',$user);
1104: return ($symb,$uname,$udom);
1105: }
1106:
1107: sub queue_key_locked {
1108: my ($queue,$key,$cdom,$cnum)=@_;
1109: if (!defined($cdom) || !defined($cnum)) {
1110: my (undef,$cid)=&Apache::lonxml::whichuser();
1111: $cnum=$env{'course.'.$cid.'.num'};
1112: $cdom=$env{'course.'.$cid.'.domain'};
1113: }
1114: my ($key_locked,$value)=
1115: &Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
1116: if ($key_locked eq "$key\0locked") {
1117: return $value;
1118: }
1119: return undef;
1120: }
1121:
1122: sub pick_from_queue_data {
1123: my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
1124: foreach my $key (keys(%$queuedata)) {
1125: if ($key =~ /\0locked$/) { next; }
1126: if ($key =~ /\0timestamp$/) { next; }
1127: my ($symb,$uname,$udom)=&decode_queue_key($key);
1128: if ($check_section) {
1129: my $section=&Apache::lonnet::getsection($uname,$udom);
1130: if ($section eq $check_section) {
1131: &Apache::lonxml::debug("my sec");
1132: next;
1133: }
1134: }
1135: my $slot=$queuedata->{$key}[0];
1136: my %slot_data=&Apache::lonnet::get_slot($slot);
1137: if ($slot_data{'endtime'} > time) {
1138: &Apache::lonxml::debug("not time");
1139: next;
1140: }
1141: if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
1142: &Apache::lonxml::debug("someone already has um.");
1143: next;
1144: }
1145: return $key;
1146: }
1147: return undef;
1148: }
1149:
1150: sub find_mid_grade {
1151: my ($queue,$symb,$cdom,$cnum)=@_;
1152: my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1153: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
1154: if ($todo) {
1155: my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
1156: if ($who eq $me) { return $todo; }
1157: }
1158: my $regexp="^$symb\0.*\0locked\$";
1159: my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1160: foreach my $key (keys(%locks)) {
1161: my $who=$locks{$key};
1162: if ($who eq $me) {
1163: $todo=$key;
1164: $todo=~s/\0locked$//;
1165: return $todo;
1166: }
1167: }
1168: return undef;
1169: }
1170:
1171: sub lock_key {
1172: my ($queue,$todo)=@_;
1173: my $me=$env{'user.name'}.'@'.$env{'user.domain'};
1174: my (undef,$cid)=&Apache::lonxml::whichuser();
1175: my $cnum=$env{'course.'.$cid.'.num'};
1176: my $cdom=$env{'course.'.$cid.'.domain'};
1177: my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
1178: $cdom,$cnum);
1179: &Apache::lonxml::debug("success $success $todo");
1180: if ($success eq 'ok') {
1181: return 1;
1182: }
1183: return 0;
1184: }
1185:
1186: sub get_from_queue {
1187: my ($queue)=@_;
1188: my $result;
1189: my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
1190: my $cnum=$env{'course.'.$cid.'.num'};
1191: my $cdom=$env{'course.'.$cid.'.domain'};
1192: my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
1193: &Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
1194: if ($todo) { return $todo; }
1195: while (1) {
1196: my $starttime=time;
1197: &Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
1198: $cdom,$cnum);
1199: &Apache::lonxml::debug("$starttime");
1200: my $regexp="^$symb\0queue\0";
1201: my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
1202: #make a pass looking for a user _not_ in my section
1203: if ($env{'request.course.sec'}) {
1204: &Apache::lonxml::debug("sce");
1205: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
1206: \%queue,$cdom,$cnum);
1207: &Apache::lonxml::debug("sce $todo");
1208: }
1209: # no one _not_ in our section so look for any user that is
1210: # ready for grading
1211: if (!$todo) {
1212: &Apache::lonxml::debug("no sce");
1213: $todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
1214: \%queue,$cdom,$cnum);
1215: &Apache::lonxml::debug("no sce $todo");
1216: }
1217: # no user to grade
1218: if (!$todo) { last; }
1219: &Apache::lonxml::debug("got $todo");
1220: # otherwise found someone so lets try to lock them
1221: # unless someone else already picked them
1222: if (!&lock_key($queue,$todo)) { next; }
1223: my (undef,$endtime)=
1224: &Apache::lonnet::get($queue,["$symb\0timestamp"],
1225: $cdom,$cnum);
1226: &Apache::lonxml::debug("emd $endtime");
1227: # someone else already modified the queue,
1228: # perhaps our picked user wass already fully graded between
1229: # when we picked him and when we locked his record? so lets
1230: # double check.
1231: if ($endtime != $starttime) {
1232: my ($key,$value)=
1233: &Apache::lonnet::get($queue,["$todo"],
1234: $cdom,$cnum);
1235: &Apache::lonxml::debug("check $key .. $value");
1236: if ($key eq $todo && ref($value)) {
1237: } else {
1238: &Apache::lonnet::del($queue,["$todo\0locked"],
1239: $cdom,$cnum);
1240: &Apache::lonxml::debug("del");
1241: next;
1242: }
1243: }
1244: &Apache::lonxml::debug("last $todo");
1245: last;
1246: }
1247: return $todo;
1248: }
1249:
1250: sub select_user {
1251: my ($symb,$cid)=&Apache::lonxml::whichuser();
1252:
1253: my @chosen_sections=
1254: &Apache::loncommon::get_env_multiple('form.chosensections');
1255: &Apache::grades::init_perm();
1256: my ($classlist,$section,$fullname)=&Apache::grades::getclasslist(\@chosen_sections,);
1257: &Apache::grades::reset_perm();
1258:
1259: my $result;
1260: if (!(grep(/^all$/,@chosen_sections))) {
1261: $result.='<p> Showing only sections <tt>'.join(', ',@chosen_sections).
1262: '</tt>.</p> '."\n";
1263: }
1264: $result.='<table border="1">';
1265:
1266: foreach my $student (sort {lc($$fullname{$a}) cmp lc($$fullname{$b}) } keys %$fullname) {
1267: my ($uname,$udom) = split(/:/,$student);
1268:
1269: my %status = &get_student_status($symb,$cid,$udom,$uname);
1270: my $queue = 'none';
1271: my $cannot_grade;
1272: if ($status{'reviewqueue'} =~ /^(in_progress|enqueue)$/) {
1273: $queue = 'reviewqueue';
1274: if ($status{'reviewqueue'} eq 'in_progress') {
1275: $cannot_grade=1;
1276: }
1277: } elsif ($status{'gradingqueue'} =~ /^(in_progress|enqueue)$/) {
1278: $queue = 'gradingqueue';
1279: if ($status{'gradingqueue'} eq 'in_progress') {
1280: $cannot_grade=1;
1281: }
1282: }
1283: my $todo =
1284: &Apache::lonnet::escape(&encode_queue_key($symb,$udom,$uname));
1285: if ($cannot_grade) {
1286: $result.='<tr><td> </td><td>'.$fullname->{$student}.
1287: '</td><td>';
1288: } else {
1289: my $seclist;
1290: foreach my $sec (@chosen_sections) {
1291: $seclist.='<input type="hidden" name="chosensections"
1292: value="'.$sec.'" />';
1293: }
1294: $result.=<<RESULT;
1295: <tr>
1296: <td>
1297: <form method="POST">
1298: <input type="hidden" name="gradingkey" value="$todo" />
1299: <input type="hidden" name="queue" value="$queue" />
1300: <input type="hidden" name="webgrade" value="no" />
1301: <input type="hidden" name="regrade" value="yes" />
1302: <input type="submit" name="submit" value="Regrade" />
1303: $seclist
1304: </form>
1305: <td>$fullname->{$student}</td>
1306: <td>
1307: RESULT
1308: }
1309: if ($status{'status'} eq 'pass') {
1310: $result .= '<font color="green">'.&mt('Passed').'</font>';
1311: } elsif ($status{'status'} eq 'fail') {
1312: $result .= '<font color="red">'.&mt('Failed').'</font>';
1313: } elsif ($status{'status'} eq 'review') {
1314: $result .= '<font color="blue">'.&mt('Under Review').'</font>';
1315: } elsif ($status{'status'} eq 'ungraded') {
1316: $result .= &mt('Ungraded');
1317: } elsif ($status{'status'} ne '') {
1318: $result .= '<font color="orange">'.&mt('Unknown Status').'</font>';
1319: } else {
1320: $result.=" ";
1321: }
1322: if ($status{'version'}) {
1323: $result .= ' '.&mt('Version').' '.$status{'version'};
1324: }
1325: $result.= '</td><td>';
1326: if ($status{'reviewqueue'} eq 'enqueued') {
1327: $result .= &mt('Awaiting Review');
1328: } elsif ($status{'reviewqueue'} eq 'locked') {
1329: $result .= &mt('Under Review');
1330: } elsif ($status{'reviewqueue'} eq 'in_progress') {
1331: $result .= &mt('Still being worked on.');
1332: } elsif ($status{'gradingqueue'} eq 'enqueued') {
1333: $result .= &mt('Awaiting Grading');
1334: } elsif ($status{'gradingqueue'} eq 'locked') {
1335: $result .= &mt('Being Graded');
1336: } elsif ($status{'gradingqueue'} eq 'in_progress') {
1337: $result .= &mt('Still being worked on.');
1338: } else {
1339: $result.=" ";
1340: }
1341: $result.= '</td></tr>';
1342: }
1343: $result.='</table>';
1344: return $result;
1345: }
1346:
1347: sub get_student_status {
1348: my ($symb,$cid,$udom,$uname)=@_;
1349: my %record = &Apache::lonnet::restore($symb,$env{'request.course.id'},
1350: $udom,$uname);
1351: my %status;
1352: $status{'status'}=$record{'resource.status'};
1353: $status{'version'}=$record{'resource.version'};
1354: $status{'grader'}=$record{'resource.grader'};
1355: $status{'reviewqueue'}=&check_queue_for_key($cid,'reviewqueue',
1356: &encode_queue_key($symb,$udom,$uname));
1357: $status{'gradingqueue'}=&check_queue_for_key($cid,'gradingqueue',
1358: &encode_queue_key($symb,$udom,$uname));
1359: return %status;
1360: }
1361:
1362: sub start_ClosingParagraph {
1363: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1364: my $result;
1365: if ($target eq 'web') {
1366: } elsif ($target eq 'webgrade') {
1367: &Apache::lonxml::startredirection();
1368: }
1369: return $result;
1370: }
1371:
1372: sub end_ClosingParagraph {
1373: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1374: my $result;
1375: if ($target eq 'web') {
1376: } elsif ($target eq 'webgrade') {
1377: &Apache::lonxml::endredirection();
1378: }
1379: return $result;
1380: }
1381:
1382: sub get_id {
1383: my ($parstack,$safeeval)=@_;
1384: my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
1385: if (!$id) { $id=$Apache::lonxml::curdepth; }
1386: return $id;
1387: }
1388:
1389: my %dimension;
1390: sub start_Dimension {
1391: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1392: undef(%dimension);
1393: my $dim_id=&get_id($parstack,$safeeval);
1394: $Apache::bridgetask::dimension=$dim_id;
1395: push(@Apache::bridgetask::dimensionlist,$dim_id);
1396: undef(@Apache::bridgetask::instance);
1397: $Apache::bridgetask::dimensionmandatory{$dim_id}=
1398: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1399: &Apache::lonxml::startredirection();
1400: return &internal_location($dim_id);
1401: }
1402:
1403: sub get_instance {
1404: &Apache::response::pushrandomnumber();
1405: my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
1406: my $num=@order;
1407: my $version=&get_version();
1408: my $which=($version-1)%$num;
1409: return $order[$which];
1410: }
1411:
1412: {
1413: my $last_link;
1414: sub end_Dimension {
1415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1416: my $result=&Apache::lonxml::endredirection();
1417: my $dim=&get_id($parstack,$safeeval);
1418: my $instance=&get_instance();
1419: my $version=&get_version();
1420: if ($target eq 'web') {
1421: @Apache::scripttag::parser_env = @_;
1422: $result.=&Apache::scripttag::xmlparse($dimension{'intro'});
1423: @Apache::scripttag::parser_env = @_;
1424: $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1425: if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
1426: $Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1427:
1428: my $dim_status=$Apache::lonhomework::history{"resource.$version.$dim.status"};
1429: my $mandatory='Mandatory';
1430: if ($Apache::bridgetask::dimensionmandatory{$dim} eq 'N') {
1431: $mandatory='Optional';
1432: }
1433: my $dim_info="<div class='$dim_status'>\n";
1434: if ($dim_status eq 'pass') {
1435: $dim_info.='<h3>Question : you passed this '.$mandatory.' question</h3>';
1436: }
1437: if ($dim_status eq 'fail') {
1438: $dim_info.='<h3>Question : you did not pass this '.$mandatory.' question</h3>';
1439: }
1440: my $man_count=0;
1441: my $man_passed=0;
1442: my $opt_count=0;
1443: my $opt_passed=0;
1444: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1445: if ($dimension{$instance.'.criteria.'.$id.'.mandatory'}
1446: eq 'N') {
1447: $opt_count++;
1448: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
1449: $opt_passed++;
1450: }
1451: } else {
1452: $man_count++;
1453: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"} eq 'pass') {
1454: $man_passed++;
1455: }
1456: }
1457: }
1458: if ($man_passed eq $man_count) { $man_passed='all'; }
1459: my $opt_req=$dimension{$instance.'.optionalrequired'};
1460: if ($opt_req !~ /\S/) { $opt_req='0'; }
1461: $dim_info.="\n<p>".&mt('You passed [_1] of the [_2] mandatory components and [_3] of the [_4] optional components, of which you were required to pass [_5].',$man_passed,$man_count,$opt_passed,$opt_count,$opt_req)."</p>\n</div>";
1462:
1463: my $internal_location=&internal_location($dim);
1464: $result=~s/\Q$internal_location\E/$dim_info/;
1465:
1466: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1467: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1468: my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
1469: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
1470: if ($mandatory) {
1471: $mandatory='Mandatory';
1472: } else {
1473: $mandatory='Optional';
1474: }
1475: if ($status eq 'fail') {
1476: } elsif ($status eq 'pass') {
1477: } else {
1478: &Apache::lonxml::error("Student viewing a graded bridgetask was shown a status of $status");
1479: }
1480: my $status_display=$status;
1481: $status_display=~s/^([a-z])/uc($1)/e;
1482: @Apache::scripttag::parser_env = @_;
1483: $result.='<div class="'.$status.'"><h4>'.$mandatory.
1484: ' Criteria</h4><p>';
1485: @Apache::scripttag::parser_env = @_;
1486: $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
1487: $result.='</p><p class="grade">'.$status_display.'</p>';
1488: if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
1489: $result.='<p class="comment">'.$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</p>';
1490: }
1491: $result.='</div>';
1492: }
1493: }
1494: } elsif ($target eq 'webgrade') {
1495: # in case of any side effects that we need
1496: @Apache::scripttag::parser_env = @_;
1497: &Apache::scripttag::xmlparse($dimension{'intro'});
1498: @Apache::scripttag::parser_env = @_;
1499: &Apache::scripttag::xmlparse($dimension{$instance.'.text'});
1500: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1501: my $link='criteria_'.$instance.'_'.$id;
1502: my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1503: $result.='<tr><td width="100%" valign="top">'.
1504: '<a name="'.$link.'" />'.
1505: '<a name="next_'.$last_link.'" />'.
1506: '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">';
1507: @Apache::scripttag::parser_env = @_;
1508: $result.=&Apache::scripttag::xmlparse($dimension{$instance.'.criteria.'.$id});
1509: $result.='</textarea>'.
1510: #$dimension{$instance.'.criteria.'.$id}.
1511: '</td>'.
1512: '<td><nobr>Additional Comment for Student</nobr> <br />'.
1513: '<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>'.
1514: '</td>'.
1515: '<td>'.
1516: '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').' />'.&mt('Ungraded').'</label></nobr><br />'.
1517: '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
1518: '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
1519: '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
1520: '</td>'.
1521: '<td>'.
1522: '<a href="#'.$last_link.'">Prev</a><br />'.
1523: '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
1524: '</td></tr>';
1525: $last_link=$link;
1526: }
1527: } elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1528: my $optional_passed=0;
1529: my $mandatory_failed=0;
1530: my $ungraded=0;
1531: my $review=0;
1532: foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1533: my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
1534: $Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1535: my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
1536: if ($status eq 'pass') {
1537: if (!$mandatory) { $optional_passed++; }
1538: } elsif ($status eq 'fail') {
1539: if ($mandatory) { $mandatory_failed++; }
1540: } elsif ($status eq 'review') {
1541: $review++;
1542: } elsif ($status eq 'ungraded') {
1543: $ungraded++;
1544: } else {
1545: $ungraded++;
1546: }
1547: }
1548: if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
1549: $mandatory_failed++;
1550: }
1551: &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1552: if ($review) {
1553: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1554: 'review';
1555: } elsif ($ungraded) {
1556: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1557: 'ungraded';
1558: } elsif ($mandatory_failed) {
1559: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1560: 'fail';
1561: } else {
1562: $Apache::lonhomework::results{"resource.$version.$dim.status"}=
1563: 'pass';
1564: }
1565: } else {
1566: # any other targets no output
1567: undef($result);
1568: }
1569: return $result;
1570: }
1571: }
1572:
1573: sub start_IntroParagraph {
1574: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1575: my $result;
1576: if ($target eq 'web' || $target eq 'webgrade') {
1577: if ($tagstack->[-2] eq 'Dimension') {
1578: $dimension{'intro'}=&Apache::lonxml::get_all_text('/introparagraph',$parser);
1579:
1580: } elsif ($target eq 'webgrade') {
1581: &Apache::lonxml::get_all_text('/introparagraph',$parser);
1582: }
1583:
1584: }
1585: return $result;
1586: }
1587:
1588: sub end_IntroParagraph {
1589: }
1590:
1591: sub start_Instance {
1592: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1593: my $id=&get_id($parstack,$safeeval);
1594: push(@{$dimension{'instances'}},$id);
1595: push(@Apache::bridgetask::instance,$id);
1596: push(@Apache::bridgetask::instancelist,$id);
1597: $dimension{$id.'.optionalrequired'}=
1598: &Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1599: return '';
1600: }
1601:
1602: sub end_Instance {
1603: }
1604:
1605: sub start_InstanceText {
1606: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1607: my $instance_id=$Apache::bridgetask::instance[-1];
1608: my $text=&Apache::lonxml::get_all_text('/instancetext',$parser);
1609: if ($target eq 'web' || $target eq 'webgrade') {
1610: $dimension{$instance_id.'.text'}=$text;
1611: }
1612: return '';
1613: }
1614:
1615: sub end_InstanceText {
1616: return '';
1617: }
1618:
1619: sub start_Criteria {
1620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1621: my $instance_id=$Apache::bridgetask::instance[-1];
1622: my $criteria=&Apache::lonxml::get_all_text('/criteria',$parser);
1623: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1624: my $id=&get_id($parstack,$safeeval);
1625: $dimension{$instance_id.'.criteria.'.$id}=$criteria;
1626: $dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
1627: &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1628: push(@{$dimension{$instance_id.'.criterias'}},$id);
1629: }
1630: return '';
1631: }
1632:
1633: sub end_Criteria {
1634: }
1635:
1636: sub proctor_validation_screen {
1637: my ($slot) = @_;
1638: my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1639: my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1640: my $name=&Apache::loncommon::plainname($user,$domain);
1641:
1642: my $msg;
1643: if ($env{'form.proctorpassword'}) {
1644: $msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
1645: .'</font></p>';
1646: }
1647: if (!$env{'form.proctordomain'}) { $env{'form.proctordomain'}=$domain; }
1648: my $result= (<<ENDCHECKOUT);
1649: <h2>Proctor Validation</h2>
1650: <p>Your room's proctor needs to validate your access to this resource.</p>
1651: $msg
1652: <form name="checkout" method="POST" action="$env{'request.uri'}">
1653: <input type="hidden" name="validate" value="yes" />
1654: <input type="hidden" name="submitted" value="yes" />
1655: <table>
1656: <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$env{'form.proctorname'}" /></td></tr>
1657: <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1658: <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$env{'form.proctordomain'}" /></td></tr>
1659: </table>
1660: <input type="submit" name="checkoutbutton" value="Validate" /><br />
1661: <table border="1">
1662: <tr><td>
1663: <table>
1664: <tr><td colspan="2">Student who should be logged in is:</td></tr>
1665: <tr><td>Name:</td><td>$name</td></tr>
1666: <tr><td>Student ID:</td><td>$env{'environment.id'}</td></tr>
1667: <tr><td>Usename</td><td>$user\@$domain</td></tr>
1668: <tr><td colspan="2"><img src="$url" /></td></tr>
1669: </table>
1670: </tr></td>
1671: </table>
1672: </form>
1673: ENDCHECKOUT
1674: return $result;
1675: }
1676:
1677: 1;
1678: __END__
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