1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.224 2007/05/21 22:57:17 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: package Apache::inputtags;
29: use HTML::Entities();
30: use strict;
31: use Apache::loncommon;
32: use Apache::lonlocal;
33: use Apache::lonnet;
34: use lib '/home/httpd/lib/perl/';
35: use LONCAPA;
36:
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
40: }
41:
42: # Initializes a set of global variables used during the parse of the problem.
43: #
44: # @Apache::inputtags::input - List of current input ids.
45: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
46: # @Apache::inputtags::response - List of all current resopnse ids.
47: # @Apache::inputtags::responselist - List of all response ids seen this
48: # problem.
49: # @Apache::inputtags::hint - List of all hint ids.
50: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
51: # @Apache::inputtags::previous - List describing if specific responseds
52: # have been used
53: # @Apache::inputtags::previous_version - Submission responses were used in.
54: # $Apache::inputtags::part - Current part id (valid only in
55: # <problem>)
56: # 0 if not in a part.
57: # @Apache::inputtags::partlist - List of part ids seen in the current
58: # <problem>
59: # @Apache::inputtags::status - List of problem statuses. First
60: # element is the status of the <problem>
61: # the remainder are for individual <part>s.
62: # %Apache::inputtags::params - Hash of defined parameters for the
63: # current response.
64: # @Apache::inputtags::import - List of all ids for <import> thes get
65: # join()ed and prepended.
66: # @Apache::inputtags::importlist - List of all import ids seen.
67: # $Apache::inputtags::response_with_no_part
68: # - Flag set true if we have seen a response
69: # that is not inside a <part>
70: # %Apache::inputtags::answertxt - <*response> tags store correct
71: # answer strings for display by <textline/>
72: # in this hash.
73: # %Apache::inputtags::submission_display
74: # - <*response> tags store improved display
75: # of submission strings for display by part
76: # end.
77:
78: sub initialize_inputtags {
79: @Apache::inputtags::input=();
80: @Apache::inputtags::inputlist=();
81: @Apache::inputtags::response=();
82: @Apache::inputtags::responselist=();
83: @Apache::inputtags::hint=();
84: @Apache::inputtags::hintlist=();
85: @Apache::inputtags::previous=();
86: @Apache::inputtags::previous_version=();
87: $Apache::inputtags::part='';
88: @Apache::inputtags::partlist=();
89: @Apache::inputtags::status=();
90: %Apache::inputtags::params=();
91: @Apache::inputtags::import=();
92: @Apache::inputtags::importlist=();
93: $Apache::inputtags::response_with_no_part=0;
94: %Apache::inputtags::answertxt=();
95: %Apache::inputtags::submission_display=();
96: }
97:
98: sub check_for_duplicate_ids {
99: my %check;
100: foreach my $id (@Apache::inputtags::partlist,
101: @Apache::inputtags::responselist,
102: @Apache::inputtags::hintlist,
103: @Apache::inputtags::importlist) {
104: $check{$id}++;
105: }
106: my @duplicates;
107: foreach my $id (sort(keys(%check))) {
108: if ($check{$id} > 1) {
109: push(@duplicates,$id);
110: }
111: }
112: if (@duplicates) {
113: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
114: }
115: }
116:
117: sub start_input {
118: my ($parstack,$safeeval)=@_;
119: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
120: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
121: push (@Apache::inputtags::input,$id);
122: push (@Apache::inputtags::inputlist,$id);
123: return $id;
124: }
125:
126: sub end_input {
127: pop @Apache::inputtags::input;
128: return '';
129: }
130:
131: sub addchars {
132: my ($fieldid,$addchars)=@_;
133: my $output='';
134: foreach (split(/\,/,$addchars)) {
135: $output.='<a href="javascript:void(document.forms.lonhomework.'.
136: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
137: }
138: return $output;
139: }
140:
141: sub start_textfield {
142: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
143: my $result = "";
144: my $id = &start_input($parstack,$safeeval);
145: my $resid=$Apache::inputtags::response[-1];
146: if ($target eq 'web') {
147: $Apache::lonxml::evaluate--;
148: my $partid=$Apache::inputtags::part;
149: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
150: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
151: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
152: if ( $cols eq '') { $cols = 80; }
153: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
154: if ( $rows eq '') { $rows = 16; }
155: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
156: $result='';
157: if ($addchars) {
158: $result.=&addchars('HWVAL_'.$resid,$addchars);
159: }
160: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
161: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
162: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
163: if ($oldresponse ne '') {
164:
165: #get rid of any startup text if the user has already responded
166: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
167: }
168: } else {
169: #show past answer in the essayresponse case
170: if ($oldresponse =~ /\S/
171: && &Apache::londefdef::is_inside_of($tagstack,
172: 'essayresponse') ) {
173: $result='<table class="LC_pastsubmission"><tr><td>'.
174: $oldresponse.'</td></tr></table>';
175: }
176: #get rid of any startup text
177: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
178: }
179: } elsif ($target eq 'grade') {
180: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
181: $style);
182: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
183: # if the seed text is still there it wasn't a real submission
184: $env{'form.HWVAL_'.$resid}='';
185: }
186: } elsif ($target eq 'edit') {
187: $result.=&Apache::edit::tag_start($target,$token);
188: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
189: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
190: $result.=&Apache::edit::text_arg
191: ('Click-On Texts (comma sep):','addchars',$token,10);
192: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
193: $style);
194: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
195: } elsif ($target eq 'modified') {
196: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
197: $safeeval,'rows','cols',
198: 'addchars');
199: if ($constructtag) {
200: $result = &Apache::edit::rebuild_tag($token);
201: } else {
202: $result=$token->[4];
203: }
204: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
205: } elsif ($target eq 'tex') {
206: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
207: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
208: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
209: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
210: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
211: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
212: } else {
213: my $TeXwidth=$width_of_box/80;
214: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
215: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
216: $result.='}}}\vskip 2 mm ';
217: }
218: }
219: return $result;
220: }
221:
222: sub end_textfield {
223: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
224: my $result;
225: if ($target eq 'web') {
226: $Apache::lonxml::evaluate++;
227: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
228: return "</textarea>";
229: }
230: } elsif ($target eq 'edit') {
231: $result=&Apache::edit::end_table();
232: }
233: &end_input;
234: return $result;
235: }
236:
237: sub exam_score_line {
238: my ($target) = @_;
239:
240: my $result;
241: if ($target eq 'tex') {
242: my $repetition = &Apache::response::repetition();
243: $result.='\begin{enumerate}';
244: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
245: foreach my $i (0..$repetition-1) {
246: $result.='\item[\textbf{'.
247: ($Apache::lonxml::counter+$i).
248: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
249: }
250: $result.= '\end{enumerate}';
251: }
252:
253: return $result;
254: }
255:
256: sub exam_box {
257: my ($target) = @_;
258: my $result;
259:
260: if ($target eq 'tex') {
261: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
262: $result .= &exam_score_line($target);
263: } elsif ($target eq 'web') {
264: my $id=$Apache::inputtags::response[-1];
265: $result.= '<br /><br />
266: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
267: </textarea> <br /><br />';
268: }
269: return $result;
270: }
271:
272: sub needs_exam_box {
273: my ($tagstack) = @_;
274: my @tags = ('formularesponse',
275: 'stringresponse',
276: 'reactionresponse',
277: 'organicresponse',
278: );
279:
280: foreach my $tag (@tags) {
281: if (grep(/\Q$tag\E/,@$tagstack)) {
282: return 1;
283: }
284: }
285: return 0;
286: }
287:
288: sub start_textline {
289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
290: my $result = "";
291: my $input_id = &start_input($parstack,$safeeval);
292: if ($target eq 'web') {
293: $Apache::lonxml::evaluate--;
294: my $partid=$Apache::inputtags::part;
295: my $id=$Apache::inputtags::response[-1];
296: if (!&Apache::response::show_answer()) {
297: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
298: my $maxlength;
299: if ($size eq '') { $size=20; } else {
300: if ($size < 20) {
301: $maxlength = ' maxlength="'.$size.'"';
302: }
303: }
304: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
305: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
306:
307: if (ref($oldresponse) eq 'ARRAY') {
308: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
309: }
310: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
311:
312: if ($Apache::lonhomework::type ne 'exam') {
313: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
314: $result='';
315: if ($addchars) {
316: $result.=&addchars('HWVAL_'.$id,$addchars);
317: }
318: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
319: $safeeval);
320: if (lc($readonly) eq 'yes'
321: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
322: $readonly=' readonly="readonly" ';
323: } else {
324: $readonly='';
325: }
326: my $name = 'HWVAL_'.$id;
327: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
328: $name = "none";
329: }
330: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
331: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
332: }
333: if ($Apache::lonhomework::type eq 'exam'
334: && &needs_exam_box($tagstack)) {
335: $result.=&exam_box($target);
336: }
337: } else {
338: #right or wrong don't show what was last typed in.
339: my $count = scalar(@Apache::inputtags::inputlist)-1;
340: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
341: #$result='';
342: }
343: } elsif ($target eq 'edit') {
344: $result=&Apache::edit::tag_start($target,$token);
345: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
346: &Apache::edit::text_arg('Click-On Texts (comma sep):',
347: 'addchars',$token,10);
348: $result.=&Apache::edit::select_arg('Readonly:','readonly',
349: ['no','yes'],$token);
350: $result.=&Apache::edit::end_row();
351: $result.=&Apache::edit::end_table();
352: } elsif ($target eq 'modified') {
353: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
354: $safeeval,'size',
355: 'addchars','readonly');
356: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
357: } elsif ($target eq 'tex'
358: && $Apache::lonhomework::type ne 'exam') {
359: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
360: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
361: $result='\framebox['.$size.'][s]{\tiny\strut}';
362:
363: } elsif ($target eq 'tex'
364: && $Apache::lonhomework::type eq 'exam'
365: && &needs_exam_box($tagstack)) {
366: $result.=&exam_box($target);
367: }
368: return $result;
369: }
370:
371: sub end_textline {
372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
373: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
374: elsif ($target eq 'edit') { return ('','no'); }
375: &end_input();
376: return "";
377: }
378:
379: sub start_hiddenline {
380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
381: my $result = "";
382: my $input_id = &start_input($parstack,$safeeval);
383: if ($target eq 'web') {
384: $Apache::lonxml::evaluate--;
385: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
386: my $partid=$Apache::inputtags::part;
387: my $id=$Apache::inputtags::response[-1];
388: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
389: if (ref($oldresponse) eq 'ARRAY') {
390: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
391: }
392: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
393:
394: if ($Apache::lonhomework::type ne 'exam') {
395: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
396: $oldresponse.'" />';
397: }
398: }
399: } elsif ($target eq 'edit') {
400: $result=&Apache::edit::tag_start($target,$token);
401: $result.=&Apache::edit::end_table;
402: }
403:
404: if ( ($target eq 'web' || $target eq 'tex')
405: && $Apache::lonhomework::type eq 'exam'
406: && &needs_exam_box($tagstack)) {
407: $result.=&exam_box($target);
408: }
409: return $result;
410: }
411:
412: sub end_hiddenline {
413: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
414: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
415: elsif ($target eq 'edit') { return ('','no'); }
416: &end_input();
417: return "";
418: }
419:
420: # $part -> partid
421: # $id -> responseid
422: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
423: # $which -> 'uploadedonly' -> only newly uploaded files
424: # 'portfolioonly' -> only allow files from portfolio
425: # 'both' -> allow files from either location
426: # $extratext -> additional text to go between the link and the input box
427: # returns a table row <tr>
428: sub file_selector {
429: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
430: if (!$uploadedfiletypes) { return ''; }
431:
432: my $jspart=$part;
433: $jspart=~s/\./_/g;
434:
435: my $result;
436:
437: $result.='<tr><td>';
438: if ($uploadedfiletypes ne '*') {
439: $result.=
440: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
441: }
442: if ($which eq 'uploadonly' || $which eq 'both') {
443: $result.=&mt('Submit a file: (only one file can be uploaded)').
444: ' <br /><input type="file" size="50" name="HWFILE'.
445: $jspart.'_'.$id.'" /><br />';
446: $result .= &show_past_file_submission($part,$id);
447: }
448: if ( $which eq 'both') {
449: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
450: }
451: if ($which eq 'portfolioonly' || $which eq 'both') {
452: $result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname=HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
453: &mt('Select Portfolio Files').'</a><br />'.
454: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
455: '<br />';
456: $result .= &show_past_portfile_submission($part,$id);
457:
458: }
459: $result.='</td></tr>';
460: return $result;
461: }
462:
463: sub show_past_file_submission {
464: my ($part,$id) = @_;
465: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
466:
467: return if (!$uploadedfile);
468:
469: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
470: &Apache::lonxml::extlink($url);
471: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
472: my $icon=&Apache::loncommon::icon($url);
473: my $curfile='<a href="'.$url.'"><img src="'.$icon.
474: '" border="0" />'.$uploadedfile.'</a>';
475: return &mt('Currently submitted: <tt>[_1]</tt>',$curfile);
476:
477: }
478:
479: sub show_past_portfile_submission {
480: my ($part,$id) = @_;
481: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
482: return;
483: }
484: my (@file_list,@bad_file_list);
485: foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
486: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
487: my $url="/uploaded/$domain/$user/portfolio$file";
488: my $icon=&Apache::loncommon::icon($url);
489: push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
490: '" border="0" />'.$file.'</a>');
491: if (! &Apache::lonnet::stat_file($url)) {
492: &Apache::lonnet::logthis("bad file is $url");
493: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
494: '" border="0" />'.$file.'</a>');
495: }
496: }
497: my $files = '<span class="LC_filename">'.
498: join('</span>, <span class="LC_filename">',@file_list).
499: '</span>';
500: my $result = &mt("Portfolio files previously selected: [_1]",$files);
501: if (@bad_file_list) {
502: my $bad_files = '<span class="LC_filename">'.
503: join('</span>, <span class="LC_filename">',@bad_file_list).
504: '</span>';
505: $result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
506: }
507: return $result;
508:
509: }
510:
511: sub valid_award {
512: my ($award) =@_;
513: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
514: 'NO_RESPONSE',
515: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
516: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
517: 'UNIT_FAIL', 'NO_UNIT',
518: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
519: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
520: 'MISORDERED_RANK', 'INVALID_FILETYPE',
521: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
522: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
523: if ($award eq $possibleaward) { return 1; }
524: }
525: return 0;
526: }
527:
528: {
529: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
530: 'TOO_LONG',
531: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
532: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
533: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
534: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
535: 'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
536: 'APPROX_ANS', 'EXACT_ANS');
537: my $i=0;
538: my %fwd_awards = map { ($_,$i++) } @awards;
539: my $max=scalar(@awards);
540: @awards=reverse(@awards);
541: $i=0;
542: my %rev_awards = map { ($_,$i++) } @awards;
543:
544: sub finalizeawards {
545: my ($awardref,$msgref,$nameref,$reverse)=@_;
546: my $result;
547: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
548: if ($result eq '' ) {
549: my $blankcount;
550: foreach my $award (@$awardref) {
551: if ($award eq '') {
552: $result='MISSING_ANSWER';
553: $blankcount++;
554: }
555: }
556: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
557: }
558: if (defined($result)) { return ($result); }
559:
560: # these awards are ordered from most important error through best correct
561: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
562:
563: my $best = $max;
564: my $j=0;
565: my $which;
566: foreach my $award (@$awardref) {
567: if ($awards->{$award} < $best) {
568: $best = $awards->{$award};
569: $which = $j;
570: }
571: $j++;
572: }
573: if (defined($which)) {
574: if (ref($nameref)) {
575: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
576: } else {
577: return ($$awardref[$which],$$msgref[$which]);
578: }
579: }
580: return ('ERROR',undef);
581: }
582: }
583:
584: sub decideoutput {
585: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
586: my $message='';
587: my $button=0;
588: my $previousmsg;
589: my $css_class='orange';
590: my $added_computer_text=0;
591: my %possible_class =
592: ( 'correct' => 'LC_answer_correct',
593: 'charged_try' => 'LC_answer_charged_try',
594: 'not_charged_try' => 'LC_answer_not_charged_try',
595: 'no_grade' => 'LC_answer_no_grade',
596: 'no_message' => 'LC_no_message',
597: );
598:
599: my $part = $Apache::inputtags::part;
600: my $handgrade =
601: ('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
602:
603: my $computer = ($handgrade)? ''
604: : " ".&mt("Computer's answer now shown above.");
605: &Apache::lonxml::debug("handgrade has :$handgrade:");
606:
607: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
608:
609: if ($solved =~ /^correct/) {
610: $css_class=$possible_class{'correct'};
611: $message=&mt('You are correct.');
612: if ($awarded < 1 && $awarded > 0) {
613: $message=&mt('You are partially correct.');
614: $css_class=$possible_class{'not_charged_try'};
615: } elsif ($awarded < 1) {
616: $message=&mt('Incorrect.');
617: $css_class=$possible_class{'charged_try'};
618: }
619: if ($env{'request.filename'} =~
620: m|/res/lib/templates/examupload.problem$|) {
621: $message = &mt("A score has been assigned.");
622: $added_computer_text=1;
623: } else {
624: if ($target eq 'tex') {
625: $message = '\textbf{'.$message.'}';
626: } else {
627: $message = "<b>".$message."</b>";
628: $message.= $computer;
629: }
630: $added_computer_text=1;
631: my ($symb) = &Apache::lonnet::whichuser();
632: if (($symb ne '')
633: &&
634: ($env{'course.'.$env{'request.course.id'}.
635: '.disable_receipt_display'} ne 'yes')) {
636: $message.=(($target eq 'web')?'<br />':' ').
637: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
638: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
639: }
640: &Apache::lonnet::logthis(" er \n$symb\n$message\n".$env{'course.'.
641: $env{'request.course.id'}.
642: '.disable_receipt_display'});
643: }
644: $button=0;
645: $previousmsg='';
646: } elsif ($solved =~ /^excused/) {
647: if ($target eq 'tex') {
648: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
649: } else {
650: $message = "<b>".&mt('You are excused from the problem.')."</b>";
651: }
652: $css_class=$possible_class{'charged_try'};
653: $button=0;
654: $previousmsg='';
655: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
656: if ($solved =~ /^incorrect/ || $solved eq '') {
657: $message = &mt("Incorrect").".";
658: $css_class=$possible_class{'charged_try'};
659: $button=1;
660: } else {
661: if ($target eq 'tex') {
662: $message = '\textbf{'.&mt('You are correct.').'}';
663: } else {
664: $message = "<b>".&mt('You are correct.')."</b>";
665: $message.= $computer;
666: }
667: $added_computer_text=1;
668: unless ($env{'course.'.
669: $env{'request.course.id'}.
670: '.disable_receipt_display'} eq 'yes') {
671: $message.=(($target eq 'web')?'<br />':' ').
672: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
673: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
674: }
675: $css_class=$possible_class{'correct'};
676: $button=0;
677: $previousmsg='';
678: }
679: } elsif ($award eq 'NO_RESPONSE') {
680: $message = '';
681: $css_class=$possible_class{'no_feedback'};
682: $button=1;
683: } elsif ($award eq 'EXTRA_ANSWER') {
684: $message = &mt('Some extra items were submitted.');
685: $css_class=$possible_class{'not_charged_try'};
686: $button = 1;
687: } elsif ($award eq 'MISSING_ANSWER') {
688: $message = &mt('Some items were not submitted.');
689: $css_class=$possible_class{'not_charged_try'};
690: $button = 1;
691: } elsif ($award eq 'ERROR') {
692: $message = &mt('An error occured while grading your answer.');
693: $css_class=$possible_class{'not_charged_try'};
694: $button = 1;
695: } elsif ($award eq 'TOO_LONG') {
696: $message = &mt("The submitted answer was too long.");
697: $css_class=$possible_class{'not_charged_try'};
698: $button=1;
699: } elsif ($award eq 'WANTED_NUMERIC') {
700: $message = &mt("This question expects a numeric answer.");
701: $css_class=$possible_class{'not_charged_try'};
702: $button=1;
703: } elsif ($award eq 'MISORDERED_RANK') {
704: $message = &mt('You have provided an invalid ranking');
705: if ($target ne 'tex') {
706: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
707: }
708: $css_class=$possible_class{'not_charged_try'};
709: $button=1;
710: } elsif ($award eq 'INVALID_FILETYPE') {
711: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
712: $css_class=$possible_class{'not_charged_try'};
713: $button=1;
714: } elsif ($award eq 'SIG_FAIL') {
715: my ($used,$min,$max)=split(':',$awardmsg);
716: my $word = ($used < $min) ? 'more' : 'fewer';
717: $message = &mt("Submission not graded. Use $word digits.",$used);
718: $css_class=$possible_class{'not_charged_try'};
719: $button=1;
720: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
721: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
722: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
723: $css_class=$possible_class{'not_charged_try'};
724: $button=1;
725: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
726: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
727: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
728: $css_class=$possible_class{'not_charged_try'};
729: $button=1;
730: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
731: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
732: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
733: $css_class=$possible_class{'not_charged_try'};
734: $button=1;
735: } elsif ($award eq 'UNIT_NOTNEEDED') {
736: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
737: $css_class=$possible_class{'not_charged_try'};
738: $button=1;
739: } elsif ($award eq 'NO_UNIT') {
740: $message = &mt("Units required").'.';
741: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
742: $css_class=$possible_class{'not_charged_try'};
743: $button=1;
744: } elsif ($award eq 'COMMA_FAIL') {
745: $message = &mt("Proper comma separation is required").'.';
746: $css_class=$possible_class{'not_charged_try'};
747: $button=1;
748: } elsif ($award eq 'BAD_FORMULA') {
749: $message = &mt("Unable to understand formula");
750: $css_class=$possible_class{'not_charged_try'};
751: $button=1;
752: } elsif ($award eq 'INCORRECT') {
753: $message = &mt("Incorrect").'.';
754: $css_class=$possible_class{'charged_try'};
755: $button=1;
756: } elsif ($award eq 'SUBMITTED') {
757: $message = &mt("Your submission has been recorded.");
758: $css_class=$possible_class{'no_grade'};
759: $button=1;
760: } elsif ($award eq 'DRAFT') {
761: $message = &mt("A draft copy has been saved.");
762: $css_class=$possible_class{'not_charged_try'};
763: $button=1;
764: } elsif ($award eq 'ASSIGNED_SCORE') {
765: $message = &mt("A score has been assigned.");
766: $css_class=$possible_class{'correct'};
767: $button=0;
768: } elsif ($award eq '') {
769: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
770: $message = &mt("Nothing submitted.");
771: $css_class=$possible_class{'charged_try'};
772: } else {
773: $css_class=$possible_class{'not_charged_try'};
774: }
775: $button=1;
776: } else {
777: $message = &mt("Unknown message").": $award";
778: $button=1;
779: }
780: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
781: foreach my $resid(@Apache::inputtags::response){
782: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
783: $message.='<br />';
784: my @files = split(/\s*,\s*/,
785: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
786: my $file_msg;
787: foreach my $file (@files) {
788: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
789: }
790: $message .= &mt('Returned file(s): [_1]',$file_msg);
791: }
792: }
793:
794: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
795: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
796: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
797: $css_class=$possible_class{'no_grade'};
798: $button=1;
799: }
800: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
801: !$added_computer_text && $target ne 'tex') {
802: $message.= $computer;
803: $added_computer_text=1;
804: }
805: return ($button,$css_class,$message,$previousmsg);
806: }
807:
808: sub markup_unit {
809: my ($unit,$target)=@_;
810: if ($target eq 'tex') {
811: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
812: } else {
813: return "<tt>".$unit."</tt>";
814: }
815: }
816:
817: sub removealldata {
818: my ($id)=@_;
819: foreach my $key (keys(%Apache::lonhomework::results)) {
820: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
821: &Apache::lonxml::debug("Removing $key");
822: delete($Apache::lonhomework::results{$key});
823: }
824: }
825: }
826:
827: sub hidealldata {
828: my ($id)=@_;
829: foreach my $key (keys(%Apache::lonhomework::results)) {
830: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
831: &Apache::lonxml::debug("Hidding $key");
832: my $newkey=$key;
833: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
834: $Apache::lonhomework::results{$newkey}=
835: $Apache::lonhomework::results{$key};
836: delete($Apache::lonhomework::results{$key});
837: }
838: }
839: }
840:
841: sub setgradedata {
842: my ($award,$msg,$id,$previously_used) = @_;
843: if ($Apache::lonhomework::scantronmode &&
844: &Apache::lonnet::validCODE($env{'form.CODE'})) {
845: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
846: } elsif ($Apache::lonhomework::scantronmode &&
847: $env{'form.CODE'} eq '' &&
848: $Apache::lonhomework::history{"resource.CODE"} ne '') {
849: $Apache::lonhomework::results{"resource.CODE"}='';
850: }
851:
852: if (!$Apache::lonhomework::scantronmode &&
853: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
854: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
855: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
856: return '';
857: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
858: /^correct/ || $Apache::lonhomework::scantronmode ||
859: lc($Apache::lonhomework::problemstatus) eq 'no') {
860: # the student doesn't already have it correct,
861: # or we are in a mode (scantron orno problem status) where a correct
862: # can become incorrect
863: # handle assignment of tries and solved status
864: my $solvemsg;
865: if ($Apache::lonhomework::scantronmode) {
866: $solvemsg='correct_by_scantron';
867: } else {
868: $solvemsg='correct_by_student';
869: }
870: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
871: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
872: }
873: if ( $award eq 'ASSIGNED_SCORE') {
874: $Apache::lonhomework::results{"resource.$id.tries"} =
875: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
876: $Apache::lonhomework::results{"resource.$id.solved"} =
877: $solvemsg;
878: my $numawards=scalar(@Apache::inputtags::response);
879: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
880: foreach my $res (@Apache::inputtags::response) {
881: $Apache::lonhomework::results{"resource.$id.awarded"}+=
882: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
883: }
884: if ($numawards > 0) {
885: $Apache::lonhomework::results{"resource.$id.awarded"}/=
886: $numawards;
887: }
888: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
889: $Apache::lonhomework::results{"resource.$id.tries"} =
890: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
891: $Apache::lonhomework::results{"resource.$id.solved"} =
892: $solvemsg;
893: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
894: } elsif ( $award eq 'INCORRECT' ) {
895: $Apache::lonhomework::results{"resource.$id.tries"} =
896: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
897: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
898: $Apache::lonhomework::scantronmode) {
899: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
900: }
901: $Apache::lonhomework::results{"resource.$id.solved"} =
902: 'incorrect_attempted';
903: } elsif ( $award eq 'SUBMITTED' ) {
904: $Apache::lonhomework::results{"resource.$id.tries"} =
905: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
906: $Apache::lonhomework::results{"resource.$id.solved"} =
907: 'ungraded_attempted';
908: } elsif ( $award eq 'DRAFT' ) {
909: $Apache::lonhomework::results{"resource.$id.solved"} = '';
910: } elsif ( $award eq 'NO_RESPONSE' ) {
911: #no real response so delete any data that got stored
912: &removealldata($id);
913: return '';
914: } else {
915: $Apache::lonhomework::results{"resource.$id.solved"} =
916: 'incorrect_attempted';
917: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
918: $Apache::lonhomework::scantronmode) {
919: $Apache::lonhomework::results{"resource.$id.tries"} =
920: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
921: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
922: }
923: }
924: if (defined($msg)) {
925: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
926: }
927: # did either of the overall awards chage? If so ignore the
928: # previous check
929: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
930: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
931: ($Apache::lonhomework::results{"resource.$id.solved"} eq
932: $Apache::lonhomework::history{"resource.$id.solved"})) {
933: # check if this was a previous submission if it was delete the
934: # unneeded data and update the previously_used attribute
935: if ( $previously_used eq 'PREVIOUSLY_USED') {
936: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
937: delete($Apache::lonhomework::results{"resource.$id.tries"});
938: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
939: }
940: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
941: #delete all data as they student didn't do anything, but save
942: #the list of collaborators.
943: &removealldata($id);
944: #and since they didn't do anything we were never here
945: return '';
946: } else {
947: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
948: }
949: }
950: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
951: /^correct/ ) {
952: #delete all data as they student already has it correct
953: &removealldata($id);
954: #and since they didn't do anything we were never here
955: return '';
956: }
957: $Apache::lonhomework::results{"resource.$id.award"} = $award;
958: if ($award eq 'SUBMITTED') {
959: &Apache::response::add_to_gradingqueue();
960: }
961: }
962:
963: sub find_which_previous {
964: my ($version) = @_;
965: my $part = $Apache::inputtags::part;
966: my (@previous_version);
967: foreach my $resp (@Apache::inputtags::response) {
968: my $key = "$version:resource.$part.$resp.submission";
969: my $submission = $Apache::lonhomework::history{$key};
970: my %previous = &Apache::response::check_for_previous($submission,
971: $part,$resp,
972: $version);
973: push(@previous_version,$previous{'version'});
974: }
975: return &previous_match(\@previous_version,
976: scalar(@Apache::inputtags::response));
977: }
978:
979: sub previous_match {
980: my ($previous_array,$count) = @_;
981: my $match = 0;
982: my @matches;
983: foreach my $versionar (@$previous_array) {
984: foreach my $version (@$versionar) {
985: $matches[$version]++;
986: }
987: }
988: my $which=0;
989: foreach my $elem (@matches) {
990: if ($elem eq $count) {
991: $match=1;
992: last;
993: }
994: $which++;
995: }
996: return ($match,$which);
997: }
998:
999: sub grade {
1000: my ($target) = @_;
1001: my $id = $Apache::inputtags::part;
1002: my $response='';
1003: if ( defined $env{'form.submitted'}) {
1004: my (@awards,@msgs);
1005: foreach $response (@Apache::inputtags::response) {
1006: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1007: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1008: &Apache::lonxml::debug("keeping $value from $response for $id");
1009: push (@awards,$value);
1010: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1011: &Apache::lonxml::debug("got message $value from $response for $id");
1012: push (@msgs,$value);
1013: }
1014: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
1015: my $previously_used;
1016: if ( $#Apache::inputtags::previous eq $#awards ) {
1017: my ($match) =
1018: &previous_match(\@Apache::inputtags::previous_version,
1019: scalar(@Apache::inputtags::response));
1020:
1021: if ($match) {
1022: $previously_used = 'PREVIOUSLY_LAST';
1023: foreach my $value (@Apache::inputtags::previous) {
1024: if ($value eq 'PREVIOUSLY_USED' ) {
1025: $previously_used = $value;
1026: last;
1027: }
1028: }
1029: }
1030: }
1031: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1032: &setgradedata($finalaward,$msg,$id,$previously_used);
1033: }
1034: return '';
1035: }
1036:
1037: sub get_grade_messages {
1038: my ($id,$prefix,$target,$status) = @_;
1039:
1040: my ($message,$latemessage,$trystr,$previousmsg);
1041: my $showbutton = 1;
1042:
1043: my $award = $Apache::lonhomework::history{"$prefix.award"};
1044: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1045: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1046: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1047: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1048: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1049: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1050: &Apache::lonxml::debug('Getting message');
1051: ($showbutton,my $css_class,$message,$previousmsg) =
1052: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1053: $target);
1054: if ($target eq 'tex') {
1055: $message='\vskip 2 mm '.$message.' ';
1056: } else {
1057: $message="<td class=\"$css_class\">$message</td>";
1058: if ($previousmsg) {
1059: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1060: }
1061: }
1062: }
1063: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1064: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1065: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1066: #if tries are set to negative turn off the Tries/Button and messages
1067: if (defined($maxtries) && $maxtries < 0) { return ''; }
1068: if ( $tries eq '' ) { $tries = '0'; }
1069: if ( $maxtries eq '' ) { $maxtries = '2'; }
1070: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1071: my $tries_text=&mt('Tries');
1072: if ( $Apache::lonhomework::type eq 'survey' ||
1073: $Apache::lonhomework::parsing_a_task) {
1074: $tries_text=&mt('Submissions');
1075: }
1076:
1077: if ($showbutton) {
1078: if ($target eq 'tex') {
1079: if ($env{'request.state'} ne "construct"
1080: && $Apache::lonhomework::type ne 'exam'
1081: && $env{'form.suppress_tries'} ne 'yes') {
1082: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1083: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1084: } else {
1085: $trystr = '\vskip 0 mm ';
1086: }
1087: } else {
1088: $trystr = "<td><nobr>".$tries_text." $tries";
1089: if ($Apache::lonhomework::parsing_a_task) {
1090: } elsif($env{'request.state'} ne 'construct') {
1091: $trystr.="/$maxtries";
1092: } else {
1093: if (defined($Apache::inputtags::params{'maxtries'})) {
1094: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1095: }
1096: }
1097: $trystr.="</nobr></td>";
1098: }
1099: }
1100:
1101: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1102: #last submissions was after due date
1103: $latemessage=&mt(' The last submission was after the Due Date ');;
1104: if ($target eq 'web') {
1105: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1106: }
1107: }
1108: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1109: }
1110:
1111: sub gradestatus {
1112: my ($id,$target,$no_previous) = @_;
1113: my $showbutton = 1;
1114: my $message = '';
1115: my $latemessage = '';
1116: my $trystr='';
1117: my $button='';
1118: my $previousmsg='';
1119:
1120: my $status = $Apache::inputtags::status['-1'];
1121: &Apache::lonxml::debug("gradestatus has :$status:");
1122: if ( $status ne 'CLOSED'
1123: && $status ne 'UNAVAILABLE'
1124: && $status ne 'INVALID_ACCESS'
1125: && $status ne 'NEEDS_CHECKIN'
1126: && $status ne 'NOT_IN_A_SLOT') {
1127:
1128: ($previousmsg,$latemessage,$message,$trystr) =
1129: &get_grade_messages($id,"resource.$id",$target,$status,
1130: $showbutton);
1131: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1132: $showbutton = 0;
1133: }
1134: if ( $status eq 'SHOW_ANSWER') {
1135: undef($previousmsg);
1136: }
1137: if ( $showbutton ) {
1138: if ($target ne 'tex') {
1139: $button = '<input onsubmit="javascript:setSubmittedPart(\''.$id.'\')" type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
1140: }
1141: }
1142:
1143: }
1144: my $output= $previousmsg.$latemessage.$message.$trystr;
1145: if ($output =~ /^\s*$/) {
1146: return $button;
1147: } else {
1148: if ($target eq 'tex') {
1149: return $button.' \vskip 0 mm '.$output.' ';
1150: } else {
1151: $output =
1152: '<table><tr><td>'.$button.'</td>'.$output;
1153: if (!$no_previous) {
1154: $output.='<td>'.&previous_tries($id,$target).'</td>';
1155: }
1156: $output.= '</tr></table>';
1157: return $output;
1158: }
1159: }
1160: }
1161:
1162: sub previous_tries {
1163: my ($id,$target) = @_;
1164: my $output;
1165: my $status = $Apache::inputtags::status['-1'];
1166:
1167: my $count;
1168: my %count_lookup;
1169:
1170: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1171: my $prefix = $i.":resource.$id";
1172:
1173: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1174: $count++;
1175: $count_lookup{$i} = $count;
1176:
1177: my ($previousmsg,$latemessage,$message,$trystr);
1178:
1179: ($previousmsg,$latemessage,$message,$trystr) =
1180: &get_grade_messages($id,"$prefix",$target,$status);
1181:
1182: if ($previousmsg ne '') {
1183: my ($match,$which) = &find_which_previous($i);
1184: $message=$previousmsg;
1185: my $previous = $count_lookup{$which};
1186: $message =~ s{(</td>)}{ as submission # $previous $1};
1187: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1188: if ( $Apache::lonhomework::history{"$prefix.solved"} =~
1189: /^correct/) {
1190: $message =~ s{(<td.*?>)(.*?)(</td>)}
1191: {$1 <strong>Correct</strong>. $3};
1192: }
1193: my $trystr = "(Try ".
1194: $Apache::lonhomework::history{"$prefix.tries"}.')';
1195: $message =~ s{(</td>)}{ $trystr $1};
1196: }
1197: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1198: $message =~ s{(<td.*?>)}{<td>};
1199:
1200:
1201: $output.='<tr class="'.$class.'">';
1202: $output.='<td align="center">'.$count.'</td>';
1203: $output.=$message;
1204:
1205: foreach my $resid (@Apache::inputtags::response) {
1206: my $prefix = $prefix.".$resid";
1207: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1208: my $submission =
1209: $Apache::inputtags::submission_display{"$prefix.submission"};
1210: if (!defined($submission)) {
1211: $submission =
1212: $Apache::lonhomework::history{"$prefix.submission"};
1213: }
1214: $output.='<td>'.$submission.'</td>';
1215: } else {
1216: $output.='<td></td>';
1217: }
1218: }
1219: $output.=&Apache::loncommon::end_data_table_row()."\n";
1220: }
1221: return if ($output eq '');
1222: my $headers =
1223: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1224: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1225: &mt('Submitted Answer').'</th>';
1226: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1227: #return $output;
1228: $output=~s/\\/\\\\/g;
1229: $output=~s/\'/\\\'/g;
1230: $output=~s/\s+/ /g;
1231: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1232: my $start_page =
1233: &Apache::loncommon::start_page('Previous Tries', undef,
1234: {'only_body' => 1,
1235: 'bgcolor' => '#FFFFFF',
1236: 'js_ready' => 1,});
1237: my $end_page =
1238: &Apache::loncommon::end_page({'js_ready' => 1,});
1239:
1240: my $result ="<script type=\"text/javascript\">
1241: // <![CDATA[
1242: function LONCAPA_previous_tries_$Apache::lonxml::curdepth() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1243: // ]]>
1244: </script><a href=\"javascript:LONCAPA_previous_tries_$Apache::lonxml::curdepth();void(0);\">".&mt("Previous Tries")."</a><br />";
1245: #use Data::Dumper;
1246: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1247: return $result;
1248: }
1249:
1250: 1;
1251: __END__
1252:
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