1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.248.2.1 2008/12/10 22:47:31 raeburn 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 LONCAPA;
35:
36:
37: BEGIN {
38: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
39: }
40:
41: # Initializes a set of global variables used during the parse of the problem.
42: #
43: # @Apache::inputtags::input - List of current input ids.
44: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
45: # @Apache::inputtags::response - List of all current resopnse ids.
46: # @Apache::inputtags::responselist - List of all response ids seen this
47: # problem.
48: # @Apache::inputtags::hint - List of all hint ids.
49: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
50: # @Apache::inputtags::previous - List describing if specific responseds
51: # have been used
52: # @Apache::inputtags::previous_version - Submission responses were used in.
53: # $Apache::inputtags::part - Current part id (valid only in
54: # <problem>)
55: # 0 if not in a part.
56: # @Apache::inputtags::partlist - List of part ids seen in the current
57: # <problem>
58: # @Apache::inputtags::status - List of problem statuses. First
59: # element is the status of the <problem>
60: # the remainder are for individual <part>s.
61: # %Apache::inputtags::params - Hash of defined parameters for the
62: # current response.
63: # @Apache::inputtags::import - List of all ids for <import> thes get
64: # join()ed and prepended.
65: # @Apache::inputtags::importlist - List of all import ids seen.
66: # $Apache::inputtags::response_with_no_part
67: # - Flag set true if we have seen a response
68: # that is not inside a <part>
69: # %Apache::inputtags::answertxt - <*response> tags store correct
70: # answer strings for display by <textline/>
71: # in this hash.
72: # %Apache::inputtags::submission_display
73: # - <*response> tags store improved display
74: # of submission strings for display by part
75: # end.
76:
77: sub initialize_inputtags {
78: @Apache::inputtags::input=();
79: @Apache::inputtags::inputlist=();
80: @Apache::inputtags::response=();
81: @Apache::inputtags::responselist=();
82: @Apache::inputtags::hint=();
83: @Apache::inputtags::hintlist=();
84: @Apache::inputtags::previous=();
85: @Apache::inputtags::previous_version=();
86: $Apache::inputtags::part='';
87: @Apache::inputtags::partlist=();
88: @Apache::inputtags::status=();
89: %Apache::inputtags::params=();
90: @Apache::inputtags::import=();
91: @Apache::inputtags::importlist=();
92: $Apache::inputtags::response_with_no_part=0;
93: %Apache::inputtags::answertxt=();
94: %Apache::inputtags::submission_display=();
95: }
96:
97: sub check_for_duplicate_ids {
98: my %check;
99: foreach my $id (@Apache::inputtags::partlist,
100: @Apache::inputtags::responselist,
101: @Apache::inputtags::hintlist,
102: @Apache::inputtags::importlist) {
103: $check{$id}++;
104: }
105: my @duplicates;
106: foreach my $id (sort(keys(%check))) {
107: if ($check{$id} > 1) {
108: push(@duplicates,$id);
109: }
110: }
111: if (@duplicates) {
112: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
113: }
114: }
115:
116: sub start_input {
117: my ($parstack,$safeeval)=@_;
118: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
119: push (@Apache::inputtags::input,$id);
120: push (@Apache::inputtags::inputlist,$id);
121: return $id;
122: }
123:
124: sub end_input {
125: pop @Apache::inputtags::input;
126: return '';
127: }
128:
129: sub addchars {
130: my ($fieldid,$addchars)=@_;
131: my $output='';
132: foreach (split(/\,/,$addchars)) {
133: $output.='<a href="javascript:void(document.forms.lonhomework.'.
134: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
135: }
136: return $output;
137: }
138:
139: sub start_textfield {
140: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
141: my $result = "";
142: my $id = &start_input($parstack,$safeeval);
143: my $resid=$Apache::inputtags::response[-1];
144: if ($target eq 'web') {
145: $Apache::lonxml::evaluate--;
146: my $partid=$Apache::inputtags::part;
147: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
148: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
149: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
150: if ( $cols eq '') { $cols = 80; }
151: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
152: if ( $rows eq '') { $rows = 16; }
153: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
154: $result='';
155: if ($addchars) {
156: $result.=&addchars('HWVAL_'.$resid,$addchars);
157: }
158: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
159: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
160: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
161: if ($oldresponse ne '') {
162:
163: #get rid of any startup text if the user has already responded
164: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
165: }
166: } else {
167: #show past answer in the essayresponse case
168: if ($oldresponse =~ /\S/
169: && &Apache::londefdef::is_inside_of($tagstack,
170: 'essayresponse') ) {
171: $result='<table class="LC_pastsubmission"><tr><td>'.
172: $oldresponse.'</td></tr></table>';
173: }
174: #get rid of any startup text
175: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
176: }
177: } elsif ($target eq 'grade') {
178: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
179: $style);
180: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
181: # if the seed text is still there it wasn't a real submission
182: $env{'form.HWVAL_'.$resid}='';
183: }
184: } elsif ($target eq 'edit') {
185: $result.=&Apache::edit::tag_start($target,$token);
186: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
187: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
188: $result.=&Apache::edit::text_arg
189: ('Click-On Texts (comma sep):','addchars',$token,10);
190: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
191: $style);
192: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
193: } elsif ($target eq 'modified') {
194: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
195: $safeeval,'rows','cols',
196: 'addchars');
197: if ($constructtag) {
198: $result = &Apache::edit::rebuild_tag($token);
199: } else {
200: $result=$token->[4];
201: }
202: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
203: } elsif ($target eq 'tex') {
204: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
205: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
206: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
207: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
208: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
209: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
210: } else {
211: my $TeXwidth=$width_of_box/80;
212: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
213: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
214: $result.='}}}\vskip 2 mm ';
215: }
216: }
217: return $result;
218: }
219:
220: sub end_textfield {
221: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
222: my $result;
223: if ($target eq 'web') {
224: $Apache::lonxml::evaluate++;
225: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
226: return "</textarea>";
227: }
228: } elsif ($target eq 'edit') {
229: $result=&Apache::edit::end_table();
230: }
231: &end_input;
232: return $result;
233: }
234:
235: sub exam_score_line {
236: my ($target) = @_;
237:
238: my $result;
239: if ($target eq 'tex') {
240: my $repetition = &Apache::response::repetition();
241: $result.='\begin{enumerate}';
242: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
243: foreach my $i (0..$repetition-1) {
244: $result.='\item[\textbf{'.
245: ($Apache::lonxml::counter+$i).
246: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
247: }
248: $result.= '\end{enumerate}';
249: }
250:
251: return $result;
252: }
253:
254: sub exam_box {
255: my ($target) = @_;
256: my $result;
257:
258: if ($target eq 'tex') {
259: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
260: $result .= &exam_score_line($target);
261: } elsif ($target eq 'web') {
262: my $id=$Apache::inputtags::response[-1];
263: $result.= '<br /><br />
264: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
265: </textarea> <br /><br />';
266: }
267: return $result;
268: }
269:
270: sub needs_exam_box {
271: my ($tagstack) = @_;
272: my @tags = ('formularesponse',
273: 'stringresponse',
274: 'reactionresponse',
275: 'organicresponse',
276: );
277:
278: foreach my $tag (@tags) {
279: if (grep(/\Q$tag\E/,@$tagstack)) {
280: return 1;
281: }
282: }
283: return 0;
284: }
285:
286: sub start_textline {
287: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
288: my $result = "";
289: my $input_id = &start_input($parstack,$safeeval);
290: if ($target eq 'web') {
291: $Apache::lonxml::evaluate--;
292: my $partid=$Apache::inputtags::part;
293: my $id=$Apache::inputtags::response[-1];
294: if (!&Apache::response::show_answer()) {
295: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
296: my $maxlength;
297: if ($size eq '') { $size=20; } else {
298: if ($size < 20) {
299: $maxlength = ' maxlength="'.$size.'"';
300: }
301: }
302: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
303: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
304:
305: if (ref($oldresponse) eq 'ARRAY') {
306: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
307: }
308: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
309: $oldresponse =~ s/^\s+//;
310: $oldresponse =~ s/\s+$//;
311: $oldresponse =~ s/\s+/ /g;
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: if ($env{'form.pdfFormFields'} eq 'yes') {
362: my $fieldname = $env{'request.symb'}.
363: '&part_'. $Apache::inputtags::part.
364: '&textresponse'.
365: '&HWVAL_' . $Apache::inputtags::response['-1'];
366: $result="\n\\\\\n".'\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
367: } else {
368: $result='\framebox['.$size.'][s]{\tiny\strut}';
369: }
370: } elsif ($target eq 'tex'
371: && $Apache::lonhomework::type eq 'exam'
372: && &needs_exam_box($tagstack)) {
373: $result.=&exam_box($target);
374: }
375: return $result;
376: }
377:
378: sub end_textline {
379: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
380: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
381: elsif ($target eq 'edit') { return ('','no'); }
382: &end_input();
383: return "";
384: }
385:
386: sub start_hiddenline {
387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
388: my $result = "";
389: my $input_id = &start_input($parstack,$safeeval);
390: if ($target eq 'web') {
391: $Apache::lonxml::evaluate--;
392: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
393: my $partid=$Apache::inputtags::part;
394: my $id=$Apache::inputtags::response[-1];
395: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
396: if (ref($oldresponse) eq 'ARRAY') {
397: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
398: }
399: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
400:
401: if ($Apache::lonhomework::type ne 'exam') {
402: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
403: $oldresponse.'" />';
404: }
405: }
406: } elsif ($target eq 'edit') {
407: $result=&Apache::edit::tag_start($target,$token);
408: $result.=&Apache::edit::end_table;
409: }
410:
411: if ( ($target eq 'web' || $target eq 'tex')
412: && $Apache::lonhomework::type eq 'exam'
413: && &needs_exam_box($tagstack)) {
414: $result.=&exam_box($target);
415: }
416: return $result;
417: }
418:
419: sub end_hiddenline {
420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
421: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
422: elsif ($target eq 'edit') { return ('','no'); }
423: &end_input();
424: return "";
425: }
426:
427: # $part -> partid
428: # $id -> responseid
429: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
430: # $which -> 'uploadedonly' -> only newly uploaded files
431: # 'portfolioonly' -> only allow files from portfolio
432: # 'both' -> allow files from either location
433: # $extratext -> additional text to go between the link and the input box
434: # returns a table row <tr>
435: sub file_selector {
436: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
437: if (!$uploadedfiletypes) { return ''; }
438:
439: my $jspart=$part;
440: $jspart=~s/\./_/g;
441:
442: my $result;
443:
444: $result.='<tr><td>';
445: if ($uploadedfiletypes ne '*') {
446: $result.=
447: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
448: }
449: if ($which eq 'uploadonly' || $which eq 'both') {
450: $result.=&mt('Submit a file: (only one file can be uploaded)').
451: ' <br /><input type="file" size="50" name="HWFILE'.
452: $jspart.'_'.$id.'" /><br />';
453: $result .= &show_past_file_submission($part,$id);
454: }
455: if ( $which eq 'both') {
456: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
457: }
458: if ($which eq 'portfolioonly' || $which eq 'both') {
459: $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"))'."'".'>'.
460: &mt('Select Portfolio Files').'</a><br />'.
461: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
462: '<br />';
463: $result .= &show_past_portfile_submission($part,$id);
464:
465: }
466: $result.='</td></tr>';
467: return $result;
468: }
469:
470: sub show_past_file_submission {
471: my ($part,$id) = @_;
472: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
473:
474: return if (!$uploadedfile);
475:
476: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
477: &Apache::lonxml::extlink($url);
478: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
479: my $icon=&Apache::loncommon::icon($url);
480: my $curfile='<a href="'.$url.'"><img src="'.$icon.
481: '" border="0" />'.$uploadedfile.'</a>';
482: return &mt('Currently submitted: <tt>[_1]</tt>',$curfile);
483:
484: }
485:
486: sub show_past_portfile_submission {
487: my ($part,$id) = @_;
488: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}!~/[^\s]/){
489: return;
490: }
491: my (@file_list,@bad_file_list);
492: foreach my $file (split(/\s*,\s*/,&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
493: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
494: my $url="/uploaded/$domain/$user/portfolio$file";
495: my $icon=&Apache::loncommon::icon($url);
496: push(@file_list,'<a href="'.$url.'"><img src="'.$icon.
497: '" border="0" />'.$file.'</a>');
498: if (! &Apache::lonnet::stat_file($url)) {
499: &Apache::lonnet::logthis("bad file is $url");
500: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
501: '" border="0" />'.$file.'</a>');
502: }
503: }
504: my $files = '<span class="LC_filename">'.
505: join('</span>, <span class="LC_filename">',@file_list).
506: '</span>';
507: my $result = &mt("Portfolio files previously selected: [_1]",$files);
508: if (@bad_file_list) {
509: my $bad_files = '<span class="LC_filename">'.
510: join('</span>, <span class="LC_filename">',@bad_file_list).
511: '</span>';
512: $result.='<br />'.&mt('<span class="LC_error">These file(s) don\'t exist:</span> [_1]',$bad_files);
513: }
514: return $result;
515:
516: }
517:
518: sub valid_award {
519: my ($award) =@_;
520: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
521: 'NO_RESPONSE',
522: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
523: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
524: 'UNIT_FAIL', 'NO_UNIT',
525: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
526: 'BAD_FORMULA', 'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT',
527: 'MISORDERED_RANK', 'INVALID_FILETYPE',
528: 'EXCESS_FILESIZE', 'DRAFT',
529: 'SUBMITTED', 'ASSIGNED_SCORE',
530: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
531: if ($award eq $possibleaward) { return 1; }
532: }
533: return 0;
534: }
535:
536: {
537: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
538: 'TOO_LONG',
539: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
540: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
541: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA', 'INTERNAL_ERROR',
542: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
543: 'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'DRAFT', 'SUBMITTED',
544: 'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
545: my $i=0;
546: my %fwd_awards = map { ($_,$i++) } @awards;
547: my $max=scalar(@awards);
548: @awards=reverse(@awards);
549: $i=0;
550: my %rev_awards = map { ($_,$i++) } @awards;
551:
552: sub awarddetail_to_awarded {
553: my ($awarddetail) = @_;
554: if ($awarddetail eq 'EXACT_ANS'
555: || $awarddetail eq 'APPROX_ANS') {
556: return 1;
557: }
558: return 0;
559: }
560:
561: sub hide_award {
562: my ($award) = @_;
563: if (&Apache::lonhomework::show_no_problem_status()) {
564: return 1;
565: }
566: if ($award =~
567: /^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|ASSIGNED_SCORE|INCORRECT)/) {
568: return 1;
569: }
570: return 0;
571: }
572:
573: sub finalizeawards {
574: my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
575: my $result;
576: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
577: if ($result eq '' ) {
578: my $blankcount;
579: foreach my $award (@$awardref) {
580: if ($award eq '') {
581: $result='MISSING_ANSWER';
582: $blankcount++;
583: }
584: }
585: if ($blankcount == ($#$awardref + 1)) {
586: return ('NO_RESPONSE');
587: }
588: }
589:
590: if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
591:
592: if (!$final_scantron && defined($result)) { return ($result); }
593:
594: # if in scantron mode, if the award for any response is
595: # assigned score, then the part gets an assigned score
596: if ($final_scantron
597: && grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
598: return ('ASSIGNED_SCORE');
599: }
600:
601: # if in scantron mode, if the award for any response is
602: # correct and there are non-correct responses,
603: # then the part gets an assigned score
604: if ($final_scantron
605: && (grep { $_ eq 'EXACT_ANS' ||
606: $_ eq 'APPROX_ANS' } (@$awardref))
607: && (grep { $_ ne 'EXACT_ANS' &&
608: $_ ne 'APPROX_ANS' } (@$awardref))) {
609: return ('ASSIGNED_SCORE');
610: }
611: # these awards are ordered from most important error through best correct
612: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
613:
614: my $best = $max;
615: my $j=0;
616: my $which;
617: foreach my $award (@$awardref) {
618: if ($awards->{$award} < $best) {
619: $best = $awards->{$award};
620: $which = $j;
621: }
622: $j++;
623: }
624:
625: if (defined($which)) {
626: if (ref($nameref)) {
627: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
628: } else {
629: return ($$awardref[$which],$$msgref[$which]);
630: }
631: }
632: return ('ERROR',undef);
633: }
634: }
635:
636: sub decideoutput {
637: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
638: my $message='';
639: my $button=0;
640: my $previousmsg;
641: my $css_class='orange';
642: my $added_computer_text=0;
643: my %possible_class =
644: ( 'correct' => 'LC_answer_correct',
645: 'charged_try' => 'LC_answer_charged_try',
646: 'not_charged_try' => 'LC_answer_not_charged_try',
647: 'no_grade' => 'LC_answer_no_grade',
648: 'no_message' => 'LC_no_message',
649: );
650:
651: my $part = $Apache::inputtags::part;
652: my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
653: my $handgrade = ('yes' eq lc($tohandgrade));
654:
655: my $computer = ($handgrade)? ''
656: : " ".&mt("Computer's answer now shown above.");
657: &Apache::lonxml::debug("handgrade has :$handgrade:");
658:
659: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
660:
661: if ($solved =~ /^correct/) {
662: $css_class=$possible_class{'correct'};
663: $message=&mt('You are correct.');
664: if ($awarded < 1 && $awarded > 0) {
665: $message=&mt('You are partially correct.');
666: $css_class=$possible_class{'not_charged_try'};
667: } elsif ($awarded < 1) {
668: $message=&mt('Incorrect.');
669: $css_class=$possible_class{'charged_try'};
670: }
671: if ($env{'request.filename'} =~
672: m|/res/lib/templates/examupload.problem$|) {
673: $message = &mt("A score has been assigned.");
674: $added_computer_text=1;
675: } else {
676: if ($target eq 'tex') {
677: $message = '\textbf{'.$message.'}';
678: } else {
679: $message = "<b>".$message."</b>";
680: $message.= $computer;
681: }
682: $added_computer_text=1;
683: if ($awarded > 0) {
684: my ($symb) = &Apache::lonnet::whichuser();
685: if (($symb ne '')
686: &&
687: ($env{'course.'.$env{'request.course.id'}.
688: '.disable_receipt_display'} ne 'yes') &&
689: ($Apache::lonhomework::type ne 'practice')) {
690: $message.=(($target eq 'web')?'<br />':' ').
691: &mt('Your receipt is [_1]',
692: (&Apache::lonnet::receipt($Apache::inputtags::part).
693: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
694: }
695: }
696: }
697: $button=0;
698: $previousmsg='';
699: } elsif ($solved =~ /^excused/) {
700: if ($target eq 'tex') {
701: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
702: } else {
703: $message = "<b>".&mt('You are excused from the problem.')."</b>";
704: }
705: $css_class=$possible_class{'charged_try'};
706: $button=0;
707: $previousmsg='';
708: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
709: if ($solved =~ /^incorrect/ || $solved eq '') {
710: $message = &mt("Incorrect").".";
711: $css_class=$possible_class{'charged_try'};
712: $button=1;
713: } else {
714: if ($target eq 'tex') {
715: $message = '\textbf{'.&mt('You are correct.').'}';
716: } else {
717: $message = "<b>".&mt('You are correct.')."</b>";
718: $message.= $computer;
719: }
720: $added_computer_text=1;
721: if ($awarded > 0
722: && $env{'course.'.
723: $env{'request.course.id'}.
724: '.disable_receipt_display'} ne 'yes') {
725: $message.=(($target eq 'web')?'<br />':' ').
726: &mt('Your receipt is [_1]',
727: (&Apache::lonnet::receipt($Apache::inputtags::part).
728: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
729: }
730: $css_class=$possible_class{'correct'};
731: $button=0;
732: $previousmsg='';
733: }
734: } elsif ($award eq 'NO_RESPONSE') {
735: $message = '';
736: $css_class=$possible_class{'no_feedback'};
737: $button=1;
738: } elsif ($award eq 'EXTRA_ANSWER') {
739: $message = &mt('Some extra items were submitted.');
740: $css_class=$possible_class{'not_charged_try'};
741: $button = 1;
742: } elsif ($award eq 'MISSING_ANSWER') {
743: $message = &mt('Some items were not submitted.');
744: if ($target ne 'tex') {
745: $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
746: }
747: $css_class=$possible_class{'not_charged_try'};
748: $button = 1;
749: } elsif ($award eq 'ERROR') {
750: $message = &mt('An error occurred while grading your answer.');
751: $css_class=$possible_class{'not_charged_try'};
752: $button = 1;
753: } elsif ($award eq 'TOO_LONG') {
754: $message = &mt("The submitted answer was too long.");
755: $css_class=$possible_class{'not_charged_try'};
756: $button=1;
757: } elsif ($award eq 'WANTED_NUMERIC') {
758: $message = &mt("This question expects a numeric answer.");
759: $css_class=$possible_class{'not_charged_try'};
760: $button=1;
761: } elsif ($award eq 'MISORDERED_RANK') {
762: $message = &mt('You have provided an invalid ranking.');
763: if ($target ne 'tex') {
764: $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
765: }
766: $css_class=$possible_class{'not_charged_try'};
767: $button=1;
768: } elsif ($award eq 'EXCESS_FILESIZE') {
769: $message = &mt('Submission won\'t be graded. The combined size of submitted files exceeded the amount allowed.');
770: $css_class=$possible_class{'not_charged_try'};
771: $button=1;
772:
773: } elsif ($award eq 'INVALID_FILETYPE') {
774: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
775: $css_class=$possible_class{'not_charged_try'};
776: $button=1;
777: } elsif ($award eq 'SIG_FAIL') {
778: my ($used,$min,$max)=split(':',$awardmsg);
779: my $word = ($used < $min) ? 'more' : 'fewer';
780: $message = &mt("Submission not graded. Use $word digits.",$used);
781: $css_class=$possible_class{'not_charged_try'};
782: $button=1;
783: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
784: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
785: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
786: $css_class=$possible_class{'not_charged_try'};
787: $button=1;
788: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
789: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
790: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
791: $css_class=$possible_class{'not_charged_try'};
792: $button=1;
793: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
794: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
795: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
796: $css_class=$possible_class{'not_charged_try'};
797: $button=1;
798: } elsif ($award eq 'UNIT_NOTNEEDED') {
799: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
800: $css_class=$possible_class{'not_charged_try'};
801: $button=1;
802: } elsif ($award eq 'NO_UNIT') {
803: $message = &mt("Units required").'.';
804: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
805: $css_class=$possible_class{'not_charged_try'};
806: $button=1;
807: } elsif ($award eq 'COMMA_FAIL') {
808: $message = &mt("Proper comma separation is required").'.';
809: $css_class=$possible_class{'not_charged_try'};
810: $button=1;
811: } elsif ($award eq 'BAD_FORMULA') {
812: $message = &mt("Unable to understand formula").'.';
813: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
814: $css_class=$possible_class{'not_charged_try'};
815: $button=1;
816: } elsif ($award eq 'INTERNAL_ERROR') {
817: $message = &mt("An internal error occurred while processing your answer. Please try again later.");
818: $css_class=$possible_class{'not_charged_try'};
819: $button=1;
820: } elsif ($award eq 'INCORRECT') {
821: $message = &mt("Incorrect").'.';
822: $css_class=$possible_class{'charged_try'};
823: $button=1;
824: } elsif ($award eq 'SUBMITTED') {
825: $message = &mt("Your submission has been recorded.");
826: $css_class=$possible_class{'no_grade'};
827: $button=1;
828: } elsif ($award eq 'DRAFT') {
829: $message = &mt("A draft copy has been saved.");
830: $css_class=$possible_class{'not_charged_try'};
831: $button=1;
832: } elsif ($award eq 'ASSIGNED_SCORE') {
833: $message = &mt("A score has been assigned.");
834: $css_class=$possible_class{'correct'};
835: $button=0;
836: } elsif ($award eq '') {
837: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
838: $message = &mt("Nothing submitted.");
839: $css_class=$possible_class{'charged_try'};
840: } else {
841: $css_class=$possible_class{'not_charged_try'};
842: }
843: $button=1;
844: } else {
845: $message = &mt("Unknown message").": $award";
846: $button=1;
847: }
848: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
849: foreach my $resid(@Apache::inputtags::response){
850: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
851: $message.='<br />';
852: my @files = split(/\s*,\s*/,
853: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
854: my $file_msg;
855: foreach my $file (@files) {
856: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
857: }
858: $message .= &mt('Returned file(s): [_1]',$file_msg);
859: }
860: }
861:
862: if (&Apache::lonhomework::hide_problem_status()
863: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
864: && &hide_award($award)) {
865: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
866: $css_class=$possible_class{'no_grade'};
867: $button=1;
868: }
869: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
870: !$added_computer_text && $target ne 'tex') {
871: $message.= $computer;
872: $added_computer_text=1;
873: }
874: if ($Apache::lonhomework::type eq 'practice') {
875: if ($target eq 'web') {
876: $message .= '<br />';
877: } else {
878: $message .= ' ';
879: }
880: $message.=&mt('Submissions to practice problems are not permanently recorded.');
881: }
882:
883: return ($button,$css_class,$message,$previousmsg);
884: }
885:
886: sub markup_unit {
887: my ($unit,$target)=@_;
888: if ($target eq 'tex') {
889: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
890: } else {
891: return "<tt>".$unit."</tt>";
892: }
893: }
894:
895: sub removealldata {
896: my ($id)=@_;
897: foreach my $key (keys(%Apache::lonhomework::results)) {
898: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
899: &Apache::lonxml::debug("Removing $key");
900: delete($Apache::lonhomework::results{$key});
901: }
902: }
903: }
904:
905: sub hidealldata {
906: my ($id)=@_;
907: foreach my $key (keys(%Apache::lonhomework::results)) {
908: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
909: &Apache::lonxml::debug("Hidding $key");
910: my $newkey=$key;
911: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
912: $Apache::lonhomework::results{$newkey}=
913: $Apache::lonhomework::results{$key};
914: delete($Apache::lonhomework::results{$key});
915: }
916: }
917: }
918:
919: sub setgradedata {
920: my ($award,$msg,$id,$previously_used) = @_;
921: if ($Apache::lonhomework::scantronmode &&
922: &Apache::lonnet::validCODE($env{'form.CODE'})) {
923: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
924: } elsif ($Apache::lonhomework::scantronmode &&
925: $env{'form.CODE'} eq '' &&
926: $Apache::lonhomework::history{"resource.CODE"} ne '') {
927: $Apache::lonhomework::results{"resource.CODE"}='';
928: }
929:
930: if (!$Apache::lonhomework::scantronmode &&
931: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
932: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
933: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
934: return '';
935: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
936: /^correct/
937: || $Apache::lonhomework::scantronmode
938: || &Apache::lonhomework::hide_problem_status() ) {
939: # the student doesn't already have it correct,
940: # or we are in a mode (scantron orno problem status) where a correct
941: # can become incorrect
942: # handle assignment of tries and solved status
943: my $solvemsg;
944: if ($Apache::lonhomework::scantronmode) {
945: $solvemsg='correct_by_scantron';
946: } else {
947: $solvemsg='correct_by_student';
948: }
949: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
950: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
951: }
952: if ( $award eq 'ASSIGNED_SCORE') {
953: $Apache::lonhomework::results{"resource.$id.tries"} =
954: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
955: $Apache::lonhomework::results{"resource.$id.solved"} =
956: $solvemsg;
957: my $numawards=scalar(@Apache::inputtags::response);
958: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
959: foreach my $res (@Apache::inputtags::response) {
960: if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
961: $Apache::lonhomework::results{"resource.$id.awarded"}+=
962: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
963: } else {
964: $Apache::lonhomework::results{"resource.$id.awarded"}+=
965: &awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
966: }
967: }
968: if ($numawards > 0) {
969: $Apache::lonhomework::results{"resource.$id.awarded"}/=
970: $numawards;
971: }
972: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
973: $Apache::lonhomework::results{"resource.$id.tries"} =
974: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
975: $Apache::lonhomework::results{"resource.$id.solved"} =
976: $solvemsg;
977: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
978: } elsif ( $award eq 'INCORRECT' ) {
979: $Apache::lonhomework::results{"resource.$id.tries"} =
980: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
981: if (&Apache::lonhomework::hide_problem_status()
982: || $Apache::lonhomework::scantronmode) {
983: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
984: }
985: $Apache::lonhomework::results{"resource.$id.solved"} =
986: 'incorrect_attempted';
987: } elsif ( $award eq 'SUBMITTED' ) {
988: $Apache::lonhomework::results{"resource.$id.tries"} =
989: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
990: $Apache::lonhomework::results{"resource.$id.solved"} =
991: 'ungraded_attempted';
992: } elsif ( $award eq 'DRAFT' ) {
993: $Apache::lonhomework::results{"resource.$id.solved"} = '';
994: } elsif ( $award eq 'NO_RESPONSE' ) {
995: #no real response so delete any data that got stored
996: &removealldata($id);
997: return '';
998: } else {
999: $Apache::lonhomework::results{"resource.$id.solved"} =
1000: 'incorrect_attempted';
1001: if (&Apache::lonhomework::show_no_problem_status()
1002: || $Apache::lonhomework::scantronmode) {
1003: $Apache::lonhomework::results{"resource.$id.tries"} =
1004: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1005: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1006: }
1007:
1008: if (&Apache::lonhomework::show_some_problem_status()) {
1009: # clear out the awarded if they had gotten it wrong/right
1010: # and are now in an error mode
1011: $Apache::lonhomework::results{"resource.$id.awarded"} = '';
1012: }
1013: }
1014: if (defined($msg)) {
1015: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
1016: }
1017: # did either of the overall awards chage? If so ignore the
1018: # previous check
1019: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
1020: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
1021: ($Apache::lonhomework::results{"resource.$id.solved"} eq
1022: $Apache::lonhomework::history{"resource.$id.solved"})) {
1023: # check if this was a previous submission if it was delete the
1024: # unneeded data and update the previously_used attribute
1025: if ( $previously_used eq 'PREVIOUSLY_USED') {
1026: if (&Apache::lonhomework::show_problem_status()) {
1027: delete($Apache::lonhomework::results{"resource.$id.tries"});
1028: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
1029: }
1030: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
1031: #delete all data as they student didn't do anything, but save
1032: #the list of collaborators.
1033: &removealldata($id);
1034: #and since they didn't do anything we were never here
1035: return '';
1036: } else {
1037: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
1038: }
1039: }
1040: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
1041: /^correct/ ) {
1042: #delete all data as they student already has it correct
1043: &removealldata($id);
1044: #and since they didn't do anything we were never here
1045: return '';
1046: }
1047: $Apache::lonhomework::results{"resource.$id.award"} = $award;
1048: if ($award eq 'SUBMITTED') {
1049: &Apache::response::add_to_gradingqueue();
1050: }
1051: }
1052:
1053: sub find_which_previous {
1054: my ($version) = @_;
1055: my $part = $Apache::inputtags::part;
1056: my (@previous_version);
1057: foreach my $resp (@Apache::inputtags::response) {
1058: my $key = "$version:resource.$part.$resp.submission";
1059: my $submission = $Apache::lonhomework::history{$key};
1060: my %previous = &Apache::response::check_for_previous($submission,
1061: $part,$resp,
1062: $version);
1063: push(@previous_version,$previous{'version'});
1064: }
1065: return &previous_match(\@previous_version,
1066: scalar(@Apache::inputtags::response));
1067: }
1068:
1069: sub previous_match {
1070: my ($previous_array,$count) = @_;
1071: my $match = 0;
1072: my @matches;
1073: foreach my $versionar (@$previous_array) {
1074: foreach my $version (@$versionar) {
1075: $matches[$version]++;
1076: }
1077: }
1078: my $which=0;
1079: foreach my $elem (@matches) {
1080: if ($elem eq $count) {
1081: $match=1;
1082: last;
1083: }
1084: $which++;
1085: }
1086: return ($match,$which);
1087: }
1088:
1089: sub grade {
1090: my ($target) = @_;
1091: my $id = $Apache::inputtags::part;
1092: my $response='';
1093: if ( defined $env{'form.submitted'}) {
1094: my (@awards,@msgs);
1095: foreach $response (@Apache::inputtags::response) {
1096: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1097: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1098: &Apache::lonxml::debug("keeping $value from $response for $id");
1099: push (@awards,$value);
1100: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1101: &Apache::lonxml::debug("got message $value from $response for $id");
1102: push (@msgs,$value);
1103: }
1104: my ($finalaward,$msg) =
1105: &finalizeawards(\@awards,\@msgs,undef,undef,
1106: $Apache::lonhomework::scantronmode);
1107: my $previously_used;
1108: if ( $#Apache::inputtags::previous eq $#awards ) {
1109: my ($match) =
1110: &previous_match(\@Apache::inputtags::previous_version,
1111: scalar(@Apache::inputtags::response));
1112:
1113: if ($match) {
1114: $previously_used = 'PREVIOUSLY_LAST';
1115: foreach my $value (@Apache::inputtags::previous) {
1116: if ($value eq 'PREVIOUSLY_USED' ) {
1117: $previously_used = $value;
1118: last;
1119: }
1120: }
1121: }
1122: }
1123: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1124: &setgradedata($finalaward,$msg,$id,$previously_used);
1125: }
1126: return '';
1127: }
1128:
1129: sub get_grade_messages {
1130: my ($id,$prefix,$target,$status) = @_;
1131:
1132: my ($message,$latemessage,$trystr,$previousmsg);
1133: my $showbutton = 1;
1134:
1135: my $award = $Apache::lonhomework::history{"$prefix.award"};
1136: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1137: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1138: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1139: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1140: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1141: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1142: &Apache::lonxml::debug('Getting message');
1143: ($showbutton,my $css_class,$message,$previousmsg) =
1144: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1145: $target);
1146: if ($target eq 'tex') {
1147: $message='\vskip 2 mm '.$message.' ';
1148: } else {
1149: $message="<td class=\"$css_class\">$message</td>";
1150: if ($previousmsg) {
1151: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1152: }
1153: }
1154: }
1155: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1156: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1157: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1158: #if tries are set to negative turn off the Tries/Button and messages
1159: if (defined($maxtries) && $maxtries < 0) { return ''; }
1160: if ( $tries eq '' ) { $tries = '0'; }
1161: if ( $maxtries eq '' ) { $maxtries = '2'; }
1162: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1163: my $tries_text=&mt('Tries');
1164: if ( $Apache::lonhomework::type eq 'survey' ||
1165: $Apache::lonhomework::parsing_a_task) {
1166: $tries_text=&mt('Submissions');
1167: }
1168:
1169: if ($showbutton) {
1170: if ($target eq 'tex') {
1171: if ($env{'request.state'} ne "construct"
1172: && $Apache::lonhomework::type ne 'exam'
1173: && $env{'form.suppress_tries'} ne 'yes') {
1174: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1175: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1176: } else {
1177: $trystr = '\vskip 0 mm ';
1178: }
1179: } else {
1180: $trystr = "<td><nobr>".$tries_text." $tries";
1181: if ($Apache::lonhomework::parsing_a_task) {
1182: } elsif($env{'request.state'} ne 'construct') {
1183: $trystr.="/$maxtries";
1184: } else {
1185: if (defined($Apache::inputtags::params{'maxtries'})) {
1186: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1187: }
1188: }
1189: $trystr.="</nobr></td>";
1190: }
1191: }
1192:
1193: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1194: #last submissions was after due date
1195: $latemessage=&mt(' The last submission was after the Due Date ');;
1196: if ($target eq 'web') {
1197: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1198: }
1199: }
1200: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1201: }
1202:
1203: sub gradestatus {
1204: my ($id,$target,$no_previous) = @_;
1205: my $showbutton = 1;
1206: my $message = '';
1207: my $latemessage = '';
1208: my $trystr='';
1209: my $button='';
1210: my $previousmsg='';
1211:
1212: my $status = $Apache::inputtags::status['-1'];
1213: &Apache::lonxml::debug("gradestatus has :$status:");
1214: if ( $status ne 'CLOSED'
1215: && $status ne 'UNAVAILABLE'
1216: && $status ne 'INVALID_ACCESS'
1217: && $status ne 'NEEDS_CHECKIN'
1218: && $status ne 'NOT_IN_A_SLOT') {
1219:
1220: ($previousmsg,$latemessage,$message,$trystr) =
1221: &get_grade_messages($id,"resource.$id",$target,$status,
1222: $showbutton);
1223: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1224: $showbutton = 0;
1225: }
1226: if ( $status eq 'SHOW_ANSWER') {
1227: undef($previousmsg);
1228: }
1229: if ( $showbutton ) {
1230: if ($target ne 'tex') {
1231: $button =
1232: '<input
1233: onmouseup="javascript:setSubmittedPart(\''.$id.'\')"
1234: onsubmit="javascript:setSubmittedPart(\''.$id.'\')"
1235: type="submit" name="submit_'.$id.'"
1236: value="'.&mt('Submit Answer').'" />';
1237: }
1238: }
1239:
1240: }
1241: my $output= $previousmsg.$latemessage.$message.$trystr;
1242: if ($output =~ /^\s*$/) {
1243: return $button;
1244: } else {
1245: if ($target eq 'tex') {
1246: return $button.' \vskip 0 mm '.$output.' ';
1247: } else {
1248: $output =
1249: '<table><tr><td>'.$button.'</td>'.$output;
1250: if (!$no_previous) {
1251: $output.='<td>'.&previous_tries($id,$target).'</td>';
1252: }
1253: $output.= '</tr></table>';
1254: return $output;
1255: }
1256: }
1257: }
1258:
1259: sub previous_tries {
1260: my ($id,$target) = @_;
1261: my $output;
1262: my $status = $Apache::inputtags::status['-1'];
1263:
1264: my $count;
1265: my %count_lookup;
1266:
1267: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1268: my $prefix = $i.":resource.$id";
1269:
1270: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1271: $count++;
1272: $count_lookup{$i} = $count;
1273:
1274: my ($previousmsg,$latemessage,$message,$trystr);
1275:
1276: ($previousmsg,$latemessage,$message,$trystr) =
1277: &get_grade_messages($id,"$prefix",$target,$status);
1278:
1279: if ($previousmsg ne '') {
1280: my ($match,$which) = &find_which_previous($i);
1281: $message=$previousmsg;
1282: my $previous = $count_lookup{$which};
1283: $message =~ s{(</td>)}{ as submission \# $previous $1};
1284: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1285: if (!(&Apache::lonhomework::hide_problem_status()
1286: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1287: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1288: ) {
1289:
1290: my $txt_correct = &mt('Correct');
1291: $message =~ s{(<td.*?>)(.*?)(</td>)}
1292: {$1 <strong>$txt_correct</strong>. $3}s;
1293: }
1294: my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1295: $message =~ s{(</td>)}{ $trystr $1};
1296: }
1297: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1298: $message =~ s{(<td.*?>)}{<td>};
1299:
1300:
1301: $output.='<tr class="'.$class.'">';
1302: $output.='<td align="center">'.$count.'</td>';
1303: $output.=$message;
1304:
1305: foreach my $resid (@Apache::inputtags::response) {
1306: my $prefix = $prefix.".$resid";
1307: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1308: my $submission =
1309: $Apache::inputtags::submission_display{"$prefix.submission"};
1310: if (!defined($submission)) {
1311: $submission =
1312: $Apache::lonhomework::history{"$prefix.submission"};
1313: }
1314: $output.='<td>'.$submission.'</td>';
1315: } else {
1316: $output.='<td></td>';
1317: }
1318: }
1319: $output.=&Apache::loncommon::end_data_table_row()."\n";
1320: }
1321: return if ($output eq '');
1322: my $headers =
1323: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1324: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1325: &mt('Submitted Answer').'</th>';
1326: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1327: #return $output;
1328: $output = &Apache::loncommon::js_ready($output);
1329: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1330:
1331: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1332: my $start_page =
1333: &Apache::loncommon::start_page('Previous Tries', undef,
1334: {'only_body' => 1,
1335: 'bgcolor' => '#FFFFFF',
1336: 'js_ready' => 1,
1337: 'inherit_jsmath' => 1, });
1338: my $end_page =
1339: &Apache::loncommon::end_page({'js_ready' => 1,});
1340: my $prefix = $env{'form.request.prefix'};
1341: $prefix =~ tr{.}{_};
1342: my $function_name = "LONCAPA_previous_tries_".$prefix.
1343: $Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1344: my $result ="<script type=\"text/javascript\">
1345: // <![CDATA[
1346: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1347: // ]]>
1348: </script><a href=\"javascript:$function_name();void(0);\">".&mt("Previous Tries")."</a><br />";
1349: #use Data::Dumper;
1350: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1351: return $result;
1352: }
1353:
1354: 1;
1355: __END__
1356:
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