1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.251 2008/12/07 23:40:57 www 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: =pod
29:
30: =head1 NAME
31:
32: Apache::inputtags
33:
34: =head1 SYNOPSIS
35:
36:
37:
38: This is part of the LearningOnline Network with CAPA project
39: described at http://www.lon-capa.org.
40:
41:
42: =head1 NOTABLE SUBROUTINES
43:
44: =over
45:
46: =item
47:
48: =back
49:
50: =cut
51:
52: package Apache::inputtags;
53: use HTML::Entities();
54: use strict;
55: use Apache::loncommon;
56: use Apache::lonlocal;
57: use Apache::lonnet;
58: use LONCAPA;
59:
60:
61: BEGIN {
62: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
63: }
64:
65: =pod
66:
67: =item initialize_inputtags()
68:
69: Initializes a set of global variables used during the parse of the problem.
70:
71: @Apache::inputtags::input - List of current input ids.
72: @Apache::inputtags::inputlist - List of all input ids seen this problem.
73: @Apache::inputtags::response - List of all current resopnse ids.
74: @Apache::inputtags::responselist - List of all response ids seen this
75: problem.
76: @Apache::inputtags::hint - List of all hint ids.
77: @Apache::inputtags::hintlist - List of all hint ids seen this problem.
78: @Apache::inputtags::previous - List describing if specific responseds
79: have been used
80: @Apache::inputtags::previous_version - Submission responses were used in.
81: $Apache::inputtags::part - Current part id (valid only in
82: <problem>)
83: 0 if not in a part.
84: @Apache::inputtags::partlist - List of part ids seen in the current
85: <problem>
86: @Apache::inputtags::status - List of problem statuses. First
87: element is the status of the <problem>
88: the remainder are for individual <part>s.
89: %Apache::inputtags::params - Hash of defined parameters for the
90: current response.
91: @Apache::inputtags::import - List of all ids for <import> thes get
92: join()ed and prepended.
93: @Apache::inputtags::importlist - List of all import ids seen.
94: $Apache::inputtags::response_with_no_part
95: - Flag set true if we have seen a response
96: that is not inside a <part>
97: %Apache::inputtags::answertxt - <*response> tags store correct
98: answer strings for display by <textline/>
99: in this hash.
100: %Apache::inputtags::submission_display
101: - <*response> tags store improved display
102: of submission strings for display by part
103: end.
104:
105: =cut
106:
107: sub initialize_inputtags {
108: @Apache::inputtags::input=();
109: @Apache::inputtags::inputlist=();
110: @Apache::inputtags::response=();
111: @Apache::inputtags::responselist=();
112: @Apache::inputtags::hint=();
113: @Apache::inputtags::hintlist=();
114: @Apache::inputtags::previous=();
115: @Apache::inputtags::previous_version=();
116: $Apache::inputtags::part='';
117: @Apache::inputtags::partlist=();
118: @Apache::inputtags::status=();
119: %Apache::inputtags::params=();
120: @Apache::inputtags::import=();
121: @Apache::inputtags::importlist=();
122: $Apache::inputtags::response_with_no_part=0;
123: %Apache::inputtags::answertxt=();
124: %Apache::inputtags::submission_display=();
125: }
126:
127: sub check_for_duplicate_ids {
128: my %check;
129: foreach my $id (@Apache::inputtags::partlist,
130: @Apache::inputtags::responselist,
131: @Apache::inputtags::hintlist,
132: @Apache::inputtags::importlist) {
133: $check{$id}++;
134: }
135: my @duplicates;
136: foreach my $id (sort(keys(%check))) {
137: if ($check{$id} > 1) {
138: push(@duplicates,$id);
139: }
140: }
141: if (@duplicates) {
142: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
143: }
144: }
145:
146: sub start_input {
147: my ($parstack,$safeeval)=@_;
148: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
149: push (@Apache::inputtags::input,$id);
150: push (@Apache::inputtags::inputlist,$id);
151: return $id;
152: }
153:
154: sub end_input {
155: pop @Apache::inputtags::input;
156: return '';
157: }
158:
159: sub addchars {
160: my ($fieldid,$addchars)=@_;
161: my $output='';
162: foreach (split(/\,/,$addchars)) {
163: $output.='<a href="javascript:void(document.forms.lonhomework.'.
164: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
165: }
166: return $output;
167: }
168:
169: sub start_textfield {
170: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
171: my $result = "";
172: my $id = &start_input($parstack,$safeeval);
173: my $resid=$Apache::inputtags::response[-1];
174: if ($target eq 'web') {
175: $Apache::lonxml::evaluate--;
176: my $partid=$Apache::inputtags::part;
177: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
178: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
179: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
180: if ( $cols eq '') { $cols = 80; }
181: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
182: if ( $rows eq '') { $rows = 16; }
183: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
184: $result='';
185: if ($addchars) {
186: $result.=&addchars('HWVAL_'.$resid,$addchars);
187: }
188: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
189: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
190: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
191: if ($oldresponse ne '') {
192:
193: #get rid of any startup text if the user has already responded
194: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
195: }
196: } else {
197: #show past answer in the essayresponse case
198: if ($oldresponse =~ /\S/
199: && &Apache::londefdef::is_inside_of($tagstack,
200: 'essayresponse') ) {
201: $result='<table class="LC_pastsubmission"><tr><td>'.
202: $oldresponse.'</td></tr></table>';
203: }
204: #get rid of any startup text
205: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
206: }
207: } elsif ($target eq 'grade') {
208: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
209: $style);
210: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
211: # if the seed text is still there it wasn't a real submission
212: $env{'form.HWVAL_'.$resid}='';
213: }
214: } elsif ($target eq 'edit') {
215: $result.=&Apache::edit::tag_start($target,$token);
216: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
217: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
218: $result.=&Apache::edit::text_arg
219: ('Click-On Texts (comma sep):','addchars',$token,10);
220: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
221: $style);
222: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
223: } elsif ($target eq 'modified') {
224: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
225: $safeeval,'rows','cols',
226: 'addchars');
227: if ($constructtag) {
228: $result = &Apache::edit::rebuild_tag($token);
229: } else {
230: $result=$token->[4];
231: }
232: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
233: } elsif ($target eq 'tex') {
234: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
235: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
236: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
237: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
238: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
239: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
240: } else {
241: my $TeXwidth=$width_of_box/80;
242: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
243: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
244: $result.='}}}\vskip 2 mm ';
245: }
246: }
247: return $result;
248: }
249:
250: sub end_textfield {
251: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
252: my $result;
253: if ($target eq 'web') {
254: $Apache::lonxml::evaluate++;
255: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
256: return "</textarea>";
257: }
258: } elsif ($target eq 'edit') {
259: $result=&Apache::edit::end_table();
260: }
261: &end_input;
262: return $result;
263: }
264:
265: sub exam_score_line {
266: my ($target) = @_;
267:
268: my $result;
269: if ($target eq 'tex') {
270: my $repetition = &Apache::response::repetition();
271: $result.='\begin{enumerate}';
272: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
273: foreach my $i (0..$repetition-1) {
274: $result.='\item[\textbf{'.
275: ($Apache::lonxml::counter+$i).
276: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
277: }
278: $result.= '\end{enumerate}';
279: }
280:
281: return $result;
282: }
283:
284: sub exam_box {
285: my ($target) = @_;
286: my $result;
287:
288: if ($target eq 'tex') {
289: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
290: $result .= &exam_score_line($target);
291: } elsif ($target eq 'web') {
292: my $id=$Apache::inputtags::response[-1];
293: $result.= '<br /><br />
294: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
295: </textarea> <br /><br />';
296: }
297: return $result;
298: }
299:
300: sub needs_exam_box {
301: my ($tagstack) = @_;
302: my @tags = ('formularesponse',
303: 'stringresponse',
304: 'reactionresponse',
305: 'organicresponse',
306: );
307:
308: foreach my $tag (@tags) {
309: if (grep(/\Q$tag\E/,@$tagstack)) {
310: return 1;
311: }
312: }
313: return 0;
314: }
315:
316: sub start_textline {
317: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
318: my $result = "";
319: my $input_id = &start_input($parstack,$safeeval);
320: if ($target eq 'web') {
321: $Apache::lonxml::evaluate--;
322: my $partid=$Apache::inputtags::part;
323: my $id=$Apache::inputtags::response[-1];
324: if (!&Apache::response::show_answer()) {
325: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
326: my $maxlength;
327: if ($size eq '') { $size=20; } else {
328: if ($size < 20) {
329: $maxlength = ' maxlength="'.$size.'"';
330: }
331: }
332: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
333: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
334:
335: if (ref($oldresponse) eq 'ARRAY') {
336: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
337: }
338: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
339: $oldresponse =~ s/^\s+//;
340: $oldresponse =~ s/\s+$//;
341: $oldresponse =~ s/\s+/ /g;
342: if ($Apache::lonhomework::type ne 'exam') {
343: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
344: $result='';
345: if ($addchars) {
346: $result.=&addchars('HWVAL_'.$id,$addchars);
347: }
348: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
349: $safeeval);
350: if (lc($readonly) eq 'yes'
351: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
352: $readonly=' readonly="readonly" ';
353: } else {
354: $readonly='';
355: }
356: my $name = 'HWVAL_'.$id;
357: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
358: $name = "none";
359: }
360: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
361: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
362: }
363: if ($Apache::lonhomework::type eq 'exam'
364: && &needs_exam_box($tagstack)) {
365: $result.=&exam_box($target);
366: }
367: } else {
368: #right or wrong don't show what was last typed in.
369: my $count = scalar(@Apache::inputtags::inputlist)-1;
370: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
371: #$result='';
372: }
373: } elsif ($target eq 'edit') {
374: $result=&Apache::edit::tag_start($target,$token);
375: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
376: &Apache::edit::text_arg('Click-On Texts (comma sep):',
377: 'addchars',$token,10);
378: $result.=&Apache::edit::select_arg('Readonly:','readonly',
379: ['no','yes'],$token);
380: $result.=&Apache::edit::end_row();
381: $result.=&Apache::edit::end_table();
382: } elsif ($target eq 'modified') {
383: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
384: $safeeval,'size',
385: 'addchars','readonly');
386: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
387: } elsif ($target eq 'tex'
388: && $Apache::lonhomework::type ne 'exam') {
389: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
390: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
391: if ($env{'form.pdfFormFields'} eq 'yes') {
392: my $fieldname = $env{'request.symb'}.
393: '&part_'. $Apache::inputtags::part.
394: '&textresponse'.
395: '&HWVAL_' . $Apache::inputtags::response['-1'];
396: $result="\n\\\\\n".'\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
397: } else {
398: $result='\framebox['.$size.'][s]{\tiny\strut}';
399: }
400: } elsif ($target eq 'tex'
401: && $Apache::lonhomework::type eq 'exam'
402: && &needs_exam_box($tagstack)) {
403: $result.=&exam_box($target);
404: }
405: return $result;
406: }
407:
408: sub end_textline {
409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
410: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
411: elsif ($target eq 'edit') { return ('','no'); }
412: &end_input();
413: return "";
414: }
415:
416: sub start_hiddenline {
417: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
418: my $result = "";
419: my $input_id = &start_input($parstack,$safeeval);
420: if ($target eq 'web') {
421: $Apache::lonxml::evaluate--;
422: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
423: my $partid=$Apache::inputtags::part;
424: my $id=$Apache::inputtags::response[-1];
425: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
426: if (ref($oldresponse) eq 'ARRAY') {
427: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
428: }
429: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
430:
431: if ($Apache::lonhomework::type ne 'exam') {
432: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
433: $oldresponse.'" />';
434: }
435: }
436: } elsif ($target eq 'edit') {
437: $result=&Apache::edit::tag_start($target,$token);
438: $result.=&Apache::edit::end_table;
439: }
440:
441: if ( ($target eq 'web' || $target eq 'tex')
442: && $Apache::lonhomework::type eq 'exam'
443: && &needs_exam_box($tagstack)) {
444: $result.=&exam_box($target);
445: }
446: return $result;
447: }
448:
449: sub end_hiddenline {
450: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
451: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
452: elsif ($target eq 'edit') { return ('','no'); }
453: &end_input();
454: return "";
455: }
456:
457: =pod
458:
459: =item file_selector()
460:
461: $part -> partid
462: $id -> responseid
463: $uploadefiletypes -> comma seperated list of extensions allowed or * for any
464: $which -> 'uploadedonly' -> only newly uploaded files
465: 'portfolioonly' -> only allow files from portfolio
466: 'both' -> allow files from either location
467: $extratext -> additional text to go between the link and the input box
468: returns a table row <tr>
469:
470: =cut
471:
472: sub file_selector {
473: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
474: if (!$uploadedfiletypes) { return ''; }
475:
476: my $jspart=$part;
477: $jspart=~s/\./_/g;
478:
479: my $result;
480:
481: $result.='<tr><td>';
482: if ($uploadedfiletypes ne '*') {
483: $result.=
484: &mt('Allowed filetypes: [_1]','<b>'.$uploadedfiletypes.'</b>').'<br />';
485: }
486: if ($which eq 'uploadonly' || $which eq 'both') {
487: $result.=&mt('Submit a file: (only one file can be uploaded)').
488: ' <br /><input type="file" size="50" name="HWFILE'.
489: $jspart.'_'.$id.'" /><br />';
490: $result .= &show_past_file_submission($part,$id);
491: }
492: if ( $which eq 'both') {
493: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
494: }
495: if ($which eq 'portfolioonly' || $which eq 'both') {
496: $result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname='.$env{'form.request.prefix'}.'HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
497: &mt('Select Portfolio Files').'</a><br />'.
498: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
499: '<br />';
500: $result .= &show_past_portfile_submission($part,$id);
501:
502: }
503: $result.='</td></tr>';
504: return $result;
505: }
506:
507: sub show_past_file_submission {
508: my ($part,$id) = @_;
509: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
510:
511: return if (!$uploadedfile);
512:
513: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
514: &Apache::lonxml::extlink($url);
515: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
516: my $icon=&Apache::loncommon::icon($url);
517: my $curfile='<a href="'.$url.'"><img src="'.$icon.
518: '" border="0" />'.$uploadedfile.'</a>';
519: return &mt('Currently submitted: [_1]','<tt>'.$curfile.'</tt>');
520:
521: }
522:
523: sub show_past_portfile_submission {
524: my ($part,$id) = @_;
525: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
526: return;
527: }
528: my (@file_list,@bad_file_list);
529: foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
530: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
531: my $url="/uploaded/$domain/$user/portfolio$file";
532: my $icon=&Apache::loncommon::icon($url);
533: push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
534: '" border="0" />'.$file.'</a>');
535: if (! &Apache::lonnet::stat_file($url)) {
536: &Apache::lonnet::logthis("bad file is $url");
537: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
538: '" border="0" />'.$file.'</a>');
539: }
540: }
541: my $files = '<span class="LC_filename">'.
542: join('</span>, <span class="LC_filename">',@file_list).
543: '</span>';
544: my $result = &mt("Portfolio files previously selected: [_1]",$files);
545: if (@bad_file_list) {
546: my $bad_files = '<span class="LC_filename">'.
547: join('</span>, <span class="LC_filename">',@bad_file_list).
548: '</span>';
549: $result.='<p><span class="LC_error">'
550: .&mt("These file(s) don't exist: [_1]",$bad_files)
551: .'</span></p>';
552: }
553: return $result;
554:
555: }
556:
557: sub valid_award {
558: my ($award) =@_;
559: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
560: 'NO_RESPONSE',
561: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
562: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
563: 'UNIT_FAIL', 'NO_UNIT',
564: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
565: 'BAD_FORMULA', 'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT',
566: 'MISORDERED_RANK', 'INVALID_FILETYPE',
567: 'EXCESS_FILESIZE', 'DRAFT',
568: 'SUBMITTED', 'ASSIGNED_SCORE',
569: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
570: if ($award eq $possibleaward) { return 1; }
571: }
572: return 0;
573: }
574:
575: {
576: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
577: 'TOO_LONG',
578: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
579: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
580: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA', 'INTERNAL_ERROR',
581: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
582: 'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'DRAFT', 'SUBMITTED',
583: 'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
584: my $i=0;
585: my %fwd_awards = map { ($_,$i++) } @awards;
586: my $max=scalar(@awards);
587: @awards=reverse(@awards);
588: $i=0;
589: my %rev_awards = map { ($_,$i++) } @awards;
590:
591: sub awarddetail_to_awarded {
592: my ($awarddetail) = @_;
593: if ($awarddetail eq 'EXACT_ANS'
594: || $awarddetail eq 'APPROX_ANS') {
595: return 1;
596: }
597: return 0;
598: }
599:
600: sub hide_award {
601: my ($award) = @_;
602: if (&Apache::lonhomework::show_no_problem_status()) {
603: return 1;
604: }
605: if ($award =~
606: /^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|ASSIGNED_SCORE|INCORRECT)/) {
607: return 1;
608: }
609: return 0;
610: }
611:
612: sub finalizeawards {
613: my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
614: my $result;
615: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
616: if ($result eq '' ) {
617: my $blankcount;
618: foreach my $award (@$awardref) {
619: if ($award eq '') {
620: $result='MISSING_ANSWER';
621: $blankcount++;
622: }
623: }
624: if ($blankcount == ($#$awardref + 1)) {
625: return ('NO_RESPONSE');
626: }
627: }
628:
629: if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
630:
631: if (!$final_scantron && defined($result)) { return ($result); }
632:
633: # if in scantron mode, if the award for any response is
634: # assigned score, then the part gets an assigned score
635: if ($final_scantron
636: && grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
637: return ('ASSIGNED_SCORE');
638: }
639:
640: # if in scantron mode, if the award for any response is
641: # correct and there are non-correct responses,
642: # then the part gets an assigned score
643: if ($final_scantron
644: && (grep { $_ eq 'EXACT_ANS' ||
645: $_ eq 'APPROX_ANS' } (@$awardref))
646: && (grep { $_ ne 'EXACT_ANS' &&
647: $_ ne 'APPROX_ANS' } (@$awardref))) {
648: return ('ASSIGNED_SCORE');
649: }
650: # these awards are ordered from most important error through best correct
651: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
652:
653: my $best = $max;
654: my $j=0;
655: my $which;
656: foreach my $award (@$awardref) {
657: if ($awards->{$award} < $best) {
658: $best = $awards->{$award};
659: $which = $j;
660: }
661: $j++;
662: }
663:
664: if (defined($which)) {
665: if (ref($nameref)) {
666: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
667: } else {
668: return ($$awardref[$which],$$msgref[$which]);
669: }
670: }
671: return ('ERROR',undef);
672: }
673: }
674:
675: sub decideoutput {
676: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
677:
678: my $message='';
679: my $button=0;
680: my $previousmsg;
681: my $css_class='orange';
682: my $added_computer_text=0;
683: my %possible_class =
684: ( 'correct' => 'LC_answer_correct',
685: 'charged_try' => 'LC_answer_charged_try',
686: 'not_charged_try' => 'LC_answer_not_charged_try',
687: 'no_grade' => 'LC_answer_no_grade',
688: 'no_message' => 'LC_no_message',
689: );
690:
691: my $part = $Apache::inputtags::part;
692: my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
693: my $handgrade = ('yes' eq lc($tohandgrade));
694:
695: my $computer = ($handgrade)? ''
696: : " ".&mt("Computer's answer now shown above.");
697: &Apache::lonxml::debug("handgrade has :$handgrade:");
698:
699: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
700:
701: if ($solved =~ /^correct/) {
702: $css_class=$possible_class{'correct'};
703: $message=&mt('You are correct.');
704: if ($awarded < 1 && $awarded > 0) {
705: $message=&mt('You are partially correct.');
706: $css_class=$possible_class{'not_charged_try'};
707: } elsif ($awarded < 1) {
708: $message=&mt('Incorrect.');
709: $css_class=$possible_class{'charged_try'};
710: }
711: if ($env{'request.filename'} =~
712: m|/res/lib/templates/examupload.problem$|) {
713: $message = &mt("A score has been assigned.");
714: $added_computer_text=1;
715: } else {
716: if ($target eq 'tex') {
717: $message = '\textbf{'.$message.'}';
718: } else {
719: $message = "<b>".$message."</b>";
720: $message.= $computer;
721: }
722: $added_computer_text=1;
723: if ($awarded > 0) {
724: my ($symb) = &Apache::lonnet::whichuser();
725: if (($symb ne '')
726: &&
727: ($env{'course.'.$env{'request.course.id'}.
728: '.disable_receipt_display'} ne 'yes') &&
729: ($Apache::lonhomework::type ne 'practice')) {
730: $message.=(($target eq 'web')?'<br />':' ').
731: &mt('Your receipt is [_1]',
732: (&Apache::lonnet::receipt($Apache::inputtags::part).
733: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
734: }
735: }
736: }
737: $button=0;
738: $previousmsg='';
739: } elsif ($solved =~ /^excused/) {
740: if ($target eq 'tex') {
741: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
742: } else {
743: $message = "<b>".&mt('You are excused from the problem.')."</b>";
744: }
745: $css_class=$possible_class{'charged_try'};
746: $button=0;
747: $previousmsg='';
748: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
749: if ($solved =~ /^incorrect/ || $solved eq '') {
750: $message = &mt("Incorrect").".";
751: $css_class=$possible_class{'charged_try'};
752: $button=1;
753: } else {
754: if ($target eq 'tex') {
755: $message = '\textbf{'.&mt('You are correct.').'}';
756: } else {
757: $message = "<b>".&mt('You are correct.')."</b>";
758: $message.= $computer;
759: }
760: $added_computer_text=1;
761: if ($awarded > 0
762: && $env{'course.'.
763: $env{'request.course.id'}.
764: '.disable_receipt_display'} ne 'yes') {
765: $message.=(($target eq 'web')?'<br />':' ').
766: &mt('Your receipt is [_1]',
767: (&Apache::lonnet::receipt($Apache::inputtags::part).
768: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
769: }
770: $css_class=$possible_class{'correct'};
771: $button=0;
772: $previousmsg='';
773: }
774: } elsif ($award eq 'NO_RESPONSE') {
775: $message = '';
776: $css_class=$possible_class{'no_feedback'};
777: $button=1;
778: } elsif ($award eq 'EXTRA_ANSWER') {
779: $message = &mt('Some extra items were submitted.');
780: $css_class=$possible_class{'not_charged_try'};
781: $button = 1;
782: } elsif ($award eq 'MISSING_ANSWER') {
783: $message = &mt('Some items were not submitted.');
784: if ($target ne 'tex') {
785: $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
786: }
787: $css_class=$possible_class{'not_charged_try'};
788: $button = 1;
789: } elsif ($award eq 'ERROR') {
790: $message = &mt('An error occurred while grading your answer.');
791: $css_class=$possible_class{'not_charged_try'};
792: $button = 1;
793: } elsif ($award eq 'TOO_LONG') {
794: $message = &mt("The submitted answer was too long.");
795: $css_class=$possible_class{'not_charged_try'};
796: $button=1;
797: } elsif ($award eq 'WANTED_NUMERIC') {
798: $message = &mt("This question expects a numeric answer.");
799: $css_class=$possible_class{'not_charged_try'};
800: $button=1;
801: } elsif ($award eq 'MISORDERED_RANK') {
802: $message = &mt('You have provided an invalid ranking.');
803: if ($target ne 'tex') {
804: $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
805: }
806: $css_class=$possible_class{'not_charged_try'};
807: $button=1;
808: } elsif ($award eq 'EXCESS_FILESIZE') {
809: $message = &mt('Submission won\'t be graded. The combined size of submitted files exceeded the amount allowed.');
810: $css_class=$possible_class{'not_charged_try'};
811: $button=1;
812: } elsif ($award eq 'INVALID_FILETYPE') {
813: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
814: $css_class=$possible_class{'not_charged_try'};
815: $button=1;
816: } elsif ($award eq 'SIG_FAIL') {
817: my ($used,$min,$max)=split(':',$awardmsg);
818: my $word = ($used < $min) ? 'more' : 'fewer';
819: $message = &mt("Submission not graded. Use $word digits.",$used);
820: $css_class=$possible_class{'not_charged_try'};
821: $button=1;
822: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
823: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
824: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
825: $css_class=$possible_class{'not_charged_try'};
826: $button=1;
827: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
828: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
829: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
830: $css_class=$possible_class{'not_charged_try'};
831: $button=1;
832: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
833: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
834: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
835: $css_class=$possible_class{'not_charged_try'};
836: $button=1;
837: } elsif ($award eq 'UNIT_NOTNEEDED') {
838: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
839: $css_class=$possible_class{'not_charged_try'};
840: $button=1;
841: } elsif ($award eq 'NO_UNIT') {
842: $message = &mt("Units required").'.';
843: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
844: $css_class=$possible_class{'not_charged_try'};
845: $button=1;
846: } elsif ($award eq 'COMMA_FAIL') {
847: $message = &mt("Proper comma separation is required").'.';
848: $css_class=$possible_class{'not_charged_try'};
849: $button=1;
850: } elsif ($award eq 'BAD_FORMULA') {
851: $message = &mt("Unable to understand formula").'.';
852: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
853: $css_class=$possible_class{'not_charged_try'};
854: $button=1;
855: } elsif ($award eq 'INTERNAL_ERROR') {
856: $message = &mt("An internal error occurred while processing your answer. Please try again later.");
857: $css_class=$possible_class{'not_charged_try'};
858: $button=1;
859: } elsif ($award eq 'INCORRECT') {
860: $message = &mt("Incorrect").'.';
861: $css_class=$possible_class{'charged_try'};
862: $button=1;
863: } elsif ($award eq 'SUBMITTED') {
864: $message = &mt("Your submission has been recorded.");
865: $css_class=$possible_class{'no_grade'};
866: $button=1;
867: } elsif ($award eq 'DRAFT') {
868: $message = &mt("A draft copy has been saved.");
869: $css_class=$possible_class{'not_charged_try'};
870: $button=1;
871: } elsif ($award eq 'ASSIGNED_SCORE') {
872: $message = &mt("A score has been assigned.");
873: $css_class=$possible_class{'correct'};
874: $button=0;
875: } elsif ($award eq '') {
876: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
877: $message = &mt("Nothing submitted.");
878: $css_class=$possible_class{'charged_try'};
879: } else {
880: $css_class=$possible_class{'not_charged_try'};
881: }
882: $button=1;
883: } else {
884: $message = &mt("Unknown message").": $award";
885: $button=1;
886: }
887: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
888: foreach my $resid(@Apache::inputtags::response){
889: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
890: $message.='<br />';
891: my @files = split(/\s*,\s*/,
892: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
893: my $file_msg;
894: foreach my $file (@files) {
895: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
896: }
897: $message .= &mt('Returned file(s): [_1]',$file_msg);
898: }
899: }
900:
901: if (&Apache::lonhomework::hide_problem_status()
902: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
903: && &hide_award($award)) {
904: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
905: $css_class=$possible_class{'no_grade'};
906: $button=1;
907: }
908: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
909: !$added_computer_text && $target ne 'tex') {
910: $message.= $computer;
911: $added_computer_text=1;
912: }
913: if ($Apache::lonhomework::type eq 'practice') {
914: if ($target eq 'web') {
915: $message .= '<br />';
916: } else {
917: $message .= ' ';
918: }
919: $message.=&mt('Submissions to practice problems are not permanently recorded.');
920: }
921:
922: return ($button,$css_class,$message,$previousmsg);
923: }
924:
925: sub markup_unit {
926: my ($unit,$target)=@_;
927: if ($target eq 'tex') {
928: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
929: } else {
930: return "<tt>".$unit."</tt>";
931: }
932: }
933:
934: sub removealldata {
935: my ($id)=@_;
936: foreach my $key (keys(%Apache::lonhomework::results)) {
937: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
938: &Apache::lonxml::debug("Removing $key");
939: delete($Apache::lonhomework::results{$key});
940: }
941: }
942: }
943:
944: sub hidealldata {
945: my ($id)=@_;
946: foreach my $key (keys(%Apache::lonhomework::results)) {
947: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
948: &Apache::lonxml::debug("Hidding $key");
949: my $newkey=$key;
950: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
951: $Apache::lonhomework::results{$newkey}=
952: $Apache::lonhomework::results{$key};
953: delete($Apache::lonhomework::results{$key});
954: }
955: }
956: }
957:
958: sub setgradedata {
959: my ($award,$msg,$id,$previously_used) = @_;
960: if ($Apache::lonhomework::scantronmode &&
961: &Apache::lonnet::validCODE($env{'form.CODE'})) {
962: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
963: } elsif ($Apache::lonhomework::scantronmode &&
964: $env{'form.CODE'} eq '' &&
965: $Apache::lonhomework::history{"resource.CODE"} ne '') {
966: $Apache::lonhomework::results{"resource.CODE"}='';
967: }
968:
969: if (!$Apache::lonhomework::scantronmode &&
970: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
971: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
972: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
973: return '';
974: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
975: /^correct/
976: || $Apache::lonhomework::scantronmode
977: || &Apache::lonhomework::hide_problem_status() ) {
978: # the student doesn't already have it correct,
979: # or we are in a mode (scantron orno problem status) where a correct
980: # can become incorrect
981: # handle assignment of tries and solved status
982: my $solvemsg;
983: if ($Apache::lonhomework::scantronmode) {
984: $solvemsg='correct_by_scantron';
985: } else {
986: $solvemsg='correct_by_student';
987: }
988: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
989: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
990: }
991: if ( $award eq 'ASSIGNED_SCORE') {
992: $Apache::lonhomework::results{"resource.$id.tries"} =
993: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
994: $Apache::lonhomework::results{"resource.$id.solved"} =
995: $solvemsg;
996: my $numawards=scalar(@Apache::inputtags::response);
997: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
998: foreach my $res (@Apache::inputtags::response) {
999: if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
1000: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1001: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
1002: } else {
1003: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1004: &awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
1005: }
1006: }
1007: if ($numawards > 0) {
1008: $Apache::lonhomework::results{"resource.$id.awarded"}/=
1009: $numawards;
1010: }
1011: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
1012: $Apache::lonhomework::results{"resource.$id.tries"} =
1013: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1014: $Apache::lonhomework::results{"resource.$id.solved"} =
1015: $solvemsg;
1016: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1017: } elsif ( $award eq 'INCORRECT' ) {
1018: $Apache::lonhomework::results{"resource.$id.tries"} =
1019: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1020: if (&Apache::lonhomework::hide_problem_status()
1021: || $Apache::lonhomework::scantronmode) {
1022: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1023: }
1024: $Apache::lonhomework::results{"resource.$id.solved"} =
1025: 'incorrect_attempted';
1026: } elsif ( $award eq 'SUBMITTED' ) {
1027: $Apache::lonhomework::results{"resource.$id.tries"} =
1028: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1029: $Apache::lonhomework::results{"resource.$id.solved"} =
1030: 'ungraded_attempted';
1031: } elsif ( $award eq 'DRAFT' ) {
1032: $Apache::lonhomework::results{"resource.$id.solved"} = '';
1033: } elsif ( $award eq 'NO_RESPONSE' ) {
1034: #no real response so delete any data that got stored
1035: &removealldata($id);
1036: return '';
1037: } else {
1038: $Apache::lonhomework::results{"resource.$id.solved"} =
1039: 'incorrect_attempted';
1040: if (&Apache::lonhomework::show_no_problem_status()
1041: || $Apache::lonhomework::scantronmode) {
1042: $Apache::lonhomework::results{"resource.$id.tries"} =
1043: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1044: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1045: }
1046:
1047: if (&Apache::lonhomework::show_some_problem_status()) {
1048: # clear out the awarded if they had gotten it wrong/right
1049: # and are now in an error mode
1050: $Apache::lonhomework::results{"resource.$id.awarded"} = '';
1051: }
1052: }
1053: if (defined($msg)) {
1054: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
1055: }
1056: # did either of the overall awards chage? If so ignore the
1057: # previous check
1058: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
1059: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
1060: ($Apache::lonhomework::results{"resource.$id.solved"} eq
1061: $Apache::lonhomework::history{"resource.$id.solved"})) {
1062: # check if this was a previous submission if it was delete the
1063: # unneeded data and update the previously_used attribute
1064: if ( $previously_used eq 'PREVIOUSLY_USED') {
1065: if (&Apache::lonhomework::show_problem_status()) {
1066: delete($Apache::lonhomework::results{"resource.$id.tries"});
1067: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
1068: }
1069: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
1070: #delete all data as they student didn't do anything, but save
1071: #the list of collaborators.
1072: &removealldata($id);
1073: #and since they didn't do anything we were never here
1074: return '';
1075: } else {
1076: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
1077: }
1078: }
1079: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
1080: /^correct/ ) {
1081: #delete all data as they student already has it correct
1082: &removealldata($id);
1083: #and since they didn't do anything we were never here
1084: return '';
1085: }
1086: $Apache::lonhomework::results{"resource.$id.award"} = $award;
1087: if ($award eq 'SUBMITTED') {
1088: &Apache::response::add_to_gradingqueue();
1089: }
1090: }
1091:
1092: sub find_which_previous {
1093: my ($version) = @_;
1094: my $part = $Apache::inputtags::part;
1095: my (@previous_version);
1096: foreach my $resp (@Apache::inputtags::response) {
1097: my $key = "$version:resource.$part.$resp.submission";
1098: my $submission = $Apache::lonhomework::history{$key};
1099: my %previous = &Apache::response::check_for_previous($submission,
1100: $part,$resp,
1101: $version);
1102: push(@previous_version,$previous{'version'});
1103: }
1104: return &previous_match(\@previous_version,
1105: scalar(@Apache::inputtags::response));
1106: }
1107:
1108: sub previous_match {
1109: my ($previous_array,$count) = @_;
1110: my $match = 0;
1111: my @matches;
1112: foreach my $versionar (@$previous_array) {
1113: foreach my $version (@$versionar) {
1114: $matches[$version]++;
1115: }
1116: }
1117: my $which=0;
1118: foreach my $elem (@matches) {
1119: if ($elem eq $count) {
1120: $match=1;
1121: last;
1122: }
1123: $which++;
1124: }
1125: return ($match,$which);
1126: }
1127:
1128: sub grade {
1129: my ($target) = @_;
1130: my $id = $Apache::inputtags::part;
1131: my $response='';
1132: if ( defined $env{'form.submitted'}) {
1133: my (@awards,@msgs);
1134: foreach $response (@Apache::inputtags::response) {
1135: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1136: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1137: &Apache::lonxml::debug("keeping $value from $response for $id");
1138: push (@awards,$value);
1139: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1140: &Apache::lonxml::debug("got message $value from $response for $id");
1141: push (@msgs,$value);
1142: }
1143: my ($finalaward,$msg) =
1144: &finalizeawards(\@awards,\@msgs,undef,undef,
1145: $Apache::lonhomework::scantronmode);
1146: my $previously_used;
1147: if ( $#Apache::inputtags::previous eq $#awards ) {
1148: my ($match) =
1149: &previous_match(\@Apache::inputtags::previous_version,
1150: scalar(@Apache::inputtags::response));
1151:
1152: if ($match) {
1153: $previously_used = 'PREVIOUSLY_LAST';
1154: foreach my $value (@Apache::inputtags::previous) {
1155: if ($value eq 'PREVIOUSLY_USED' ) {
1156: $previously_used = $value;
1157: last;
1158: }
1159: }
1160: }
1161: }
1162: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1163: &setgradedata($finalaward,$msg,$id,$previously_used);
1164: }
1165: return '';
1166: }
1167:
1168: sub get_grade_messages {
1169: my ($id,$prefix,$target,$status) = @_;
1170:
1171: my ($message,$latemessage,$trystr,$previousmsg);
1172: my $showbutton = 1;
1173:
1174: my $award = $Apache::lonhomework::history{"$prefix.award"};
1175: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1176: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1177: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1178: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1179: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1180: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1181: &Apache::lonxml::debug('Getting message');
1182: ($showbutton,my $css_class,$message,$previousmsg) =
1183: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1184: $target);
1185: if ($target eq 'tex') {
1186: $message='\vskip 2 mm '.$message.' ';
1187: } else {
1188: $message="<td class=\"$css_class\">$message</td>";
1189: if ($previousmsg) {
1190: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1191: }
1192: }
1193: }
1194: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1195: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1196: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1197: #if tries are set to negative turn off the Tries/Button and messages
1198: if (defined($maxtries) && $maxtries < 0) { return ''; }
1199: if ( $tries eq '' ) { $tries = '0'; }
1200: if ( $maxtries eq '' ) { $maxtries = '2'; }
1201: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1202: my $tries_text=&mt('Tries');
1203: if ( $Apache::lonhomework::type eq 'survey' ||
1204: $Apache::lonhomework::parsing_a_task) {
1205: $tries_text=&mt('Submissions');
1206: }
1207:
1208: if ($showbutton) {
1209: if ($target eq 'tex') {
1210: if ($env{'request.state'} ne "construct"
1211: && $Apache::lonhomework::type ne 'exam'
1212: && $env{'form.suppress_tries'} ne 'yes') {
1213: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1214: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1215: } else {
1216: $trystr = '\vskip 0 mm ';
1217: }
1218: } else {
1219: $trystr = "<td><nobr>".$tries_text." $tries";
1220: if ($Apache::lonhomework::parsing_a_task) {
1221: } elsif($env{'request.state'} ne 'construct') {
1222: $trystr.="/$maxtries";
1223: } else {
1224: if (defined($Apache::inputtags::params{'maxtries'})) {
1225: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1226: }
1227: }
1228: $trystr.="</nobr></td>";
1229: }
1230: }
1231:
1232: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1233: #last submissions was after due date
1234: $latemessage=&mt(' The last submission was after the Due Date ');;
1235: if ($target eq 'web') {
1236: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1237: }
1238: }
1239: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1240: }
1241:
1242: sub gradestatus {
1243: my ($id,$target,$no_previous) = @_;
1244: my $showbutton = 1;
1245: my $message = '';
1246: my $latemessage = '';
1247: my $trystr='';
1248: my $button='';
1249: my $previousmsg='';
1250:
1251: my $status = $Apache::inputtags::status['-1'];
1252: &Apache::lonxml::debug("gradestatus has :$status:");
1253: if ( $status ne 'CLOSED'
1254: && $status ne 'UNAVAILABLE'
1255: && $status ne 'INVALID_ACCESS'
1256: && $status ne 'NEEDS_CHECKIN'
1257: && $status ne 'NOT_IN_A_SLOT') {
1258:
1259: ($previousmsg,$latemessage,$message,$trystr) =
1260: &get_grade_messages($id,"resource.$id",$target,$status,
1261: $showbutton);
1262: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1263: $showbutton = 0;
1264: }
1265: if ( $status eq 'SHOW_ANSWER') {
1266: undef($previousmsg);
1267: }
1268: if ( $showbutton ) {
1269: if ($target ne 'tex') {
1270: $button =
1271: '<input
1272: onmouseup="javascript:setSubmittedPart(\''.$id.'\')"
1273: onsubmit="javascript:setSubmittedPart(\''.$id.'\')"
1274: type="submit" name="submit_'.$id.'"
1275: value="'.&mt('Submit Answer').'" />';
1276: }
1277: }
1278:
1279: }
1280: my $output= $previousmsg.$latemessage.$message.$trystr;
1281: if ($output =~ /^\s*$/) {
1282: return $button;
1283: } else {
1284: if ($target eq 'tex') {
1285: return $button.' \vskip 0 mm '.$output.' ';
1286: } else {
1287: $output =
1288: '<table><tr><td>'.$button.'</td>'.$output;
1289: if (!$no_previous) {
1290: $output.='<td>'.&previous_tries($id,$target).'</td>';
1291: }
1292: $output.= '</tr></table>';
1293: return $output;
1294: }
1295: }
1296: }
1297:
1298: sub previous_tries {
1299: my ($id,$target) = @_;
1300: my $output;
1301: my $status = $Apache::inputtags::status['-1'];
1302:
1303: my $count;
1304: my %count_lookup;
1305:
1306: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1307: my $prefix = $i.":resource.$id";
1308:
1309: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1310: $count++;
1311: $count_lookup{$i} = $count;
1312:
1313: my ($previousmsg,$latemessage,$message,$trystr);
1314:
1315: ($previousmsg,$latemessage,$message,$trystr) =
1316: &get_grade_messages($id,"$prefix",$target,$status);
1317:
1318: if ($previousmsg ne '') {
1319: my ($match,$which) = &find_which_previous($i);
1320: $message=$previousmsg;
1321: my $previous = $count_lookup{$which};
1322: $message =~ s{(</td>)}{ as submission \# $previous $1};
1323: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1324: if (!(&Apache::lonhomework::hide_problem_status()
1325: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1326: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1327: ) {
1328:
1329: my $txt_correct = &mt('Correct');
1330: $message =~ s{(<td.*?>)(.*?)(</td>)}
1331: {$1 <strong>$txt_correct</strong>. $3}s;
1332: }
1333: my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1334: $message =~ s{(</td>)}{ $trystr $1};
1335: }
1336: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1337: $message =~ s{(<td.*?>)}{<td>};
1338:
1339:
1340: $output.='<tr class="'.$class.'">';
1341: $output.='<td align="center">'.$count.'</td>';
1342: $output.=$message;
1343:
1344: foreach my $resid (@Apache::inputtags::response) {
1345: my $prefix = $prefix.".$resid";
1346: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1347: my $submission =
1348: $Apache::inputtags::submission_display{"$prefix.submission"};
1349: if (!defined($submission)) {
1350: $submission =
1351: $Apache::lonhomework::history{"$prefix.submission"};
1352: }
1353: $output.='<td>'.$submission.'</td>';
1354: } else {
1355: $output.='<td></td>';
1356: }
1357: }
1358: $output.=&Apache::loncommon::end_data_table_row()."\n";
1359: }
1360: return if ($output eq '');
1361: my $headers =
1362: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1363: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1364: &mt('Submitted Answer').'</th>';
1365: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1366: #return $output;
1367: $output = &Apache::loncommon::js_ready($output);
1368: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1369:
1370: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1371: my $start_page =
1372: &Apache::loncommon::start_page('Previous Tries', undef,
1373: {'only_body' => 1,
1374: 'bgcolor' => '#FFFFFF',
1375: 'js_ready' => 1,
1376: 'inherit_jsmath' => 1, });
1377: my $end_page =
1378: &Apache::loncommon::end_page({'js_ready' => 1,});
1379: my $prefix = $env{'form.request.prefix'};
1380: $prefix =~ tr{.}{_};
1381: my $function_name = "LONCAPA_previous_tries_".$prefix.
1382: $Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1383: my $result ="<script type=\"text/javascript\">
1384: // <![CDATA[
1385: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1386: // ]]>
1387: </script><a href=\"javascript:$function_name();void(0);\">".&mt("Previous Tries")."</a><br />";
1388: #use Data::Dumper;
1389: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1390: return $result;
1391: }
1392:
1393: 1;
1394: __END__
1395:
1396: =pod
1397:
1398: =back
1399:
1400: =cut
1401:
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