1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.271.2.5 2011/01/06 22:56:42 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: =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::lonhtmlcommon;
57: use Apache::lonlocal;
58: use Apache::lonnet;
59: use LONCAPA;
60:
61:
62: BEGIN {
63: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
64: }
65:
66: =pod
67:
68: =item initialize_inputtags()
69:
70: Initializes a set of global variables used during the parse of the problem.
71:
72: @Apache::inputtags::input - List of current input ids.
73: @Apache::inputtags::inputlist - List of all input ids seen this problem.
74: @Apache::inputtags::response - List of all current resopnse ids.
75: @Apache::inputtags::responselist - List of all response ids seen this
76: problem.
77: @Apache::inputtags::hint - List of all hint ids.
78: @Apache::inputtags::hintlist - List of all hint ids seen this problem.
79: @Apache::inputtags::previous - List describing if specific responseds
80: have been used
81: @Apache::inputtags::previous_version - Submission responses were used in.
82: $Apache::inputtags::part - Current part id (valid only in
83: <problem>)
84: 0 if not in a part.
85: @Apache::inputtags::partlist - List of part ids seen in the current
86: <problem>
87: @Apache::inputtags::status - List of problem statuses. First
88: element is the status of the <problem>
89: the remainder are for individual <part>s.
90: %Apache::inputtags::params - Hash of defined parameters for the
91: current response.
92: @Apache::inputtags::import - List of all ids for <import> thes get
93: join()ed and prepended.
94: @Apache::inputtags::importlist - List of all import ids seen.
95: $Apache::inputtags::response_with_no_part
96: - Flag set true if we have seen a response
97: that is not inside a <part>
98: %Apache::inputtags::answertxt - <*response> tags store correct
99: answer strings for display by <textline/>
100: in this hash.
101: %Apache::inputtags::submission_display
102: - <*response> tags store improved display
103: of submission strings for display by part
104: end.
105:
106: =cut
107:
108: sub initialize_inputtags {
109: @Apache::inputtags::input=();
110: @Apache::inputtags::inputlist=();
111: @Apache::inputtags::response=();
112: @Apache::inputtags::responselist=();
113: @Apache::inputtags::hint=();
114: @Apache::inputtags::hintlist=();
115: @Apache::inputtags::previous=();
116: @Apache::inputtags::previous_version=();
117: $Apache::inputtags::part='';
118: @Apache::inputtags::partlist=();
119: @Apache::inputtags::status=();
120: %Apache::inputtags::params=();
121: @Apache::inputtags::import=();
122: @Apache::inputtags::importlist=();
123: $Apache::inputtags::response_with_no_part=0;
124: %Apache::inputtags::answertxt=();
125: %Apache::inputtags::submission_display=();
126: }
127:
128: sub check_for_duplicate_ids {
129: my %check;
130: foreach my $id (@Apache::inputtags::partlist,
131: @Apache::inputtags::responselist,
132: @Apache::inputtags::hintlist,
133: @Apache::inputtags::importlist) {
134: $check{$id}++;
135: }
136: my @duplicates;
137: foreach my $id (sort(keys(%check))) {
138: if ($check{$id} > 1) {
139: push(@duplicates,$id);
140: }
141: }
142: if (@duplicates) {
143: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
144: }
145: }
146:
147: sub start_input {
148: my ($parstack,$safeeval)=@_;
149: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
150: push (@Apache::inputtags::input,$id);
151: push (@Apache::inputtags::inputlist,$id);
152: return $id;
153: }
154:
155: sub end_input {
156: pop @Apache::inputtags::input;
157: return '';
158: }
159:
160: sub addchars {
161: my ($fieldid,$addchars)=@_;
162: my $output='';
163: foreach (split(/\,/,$addchars)) {
164: $output.='<a href="javascript:void(document.forms.lonhomework.'.
165: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
166: }
167: return $output;
168: }
169:
170: sub start_textfield {
171: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
172: my $result = "";
173: my $id = &start_input($parstack,$safeeval);
174: my $resid=$Apache::inputtags::response[-1];
175: if ($target eq 'web') {
176: $Apache::lonxml::evaluate--;
177: my $partid=$Apache::inputtags::part;
178: my ($oldresponse,$newvariation);
179: if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
180: ($Apache::lonhomework::type eq 'randomizetry')) &&
181: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
182: if ($env{'form.'.$partid.'.rndseed'} ne
183: $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
184: $newvariation = 1;
185: }
186: }
187: unless ($newvariation) {
188: $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
189: }
190: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
191: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
192: if ( $cols eq '') { $cols = 80; }
193: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
194: if ( $rows eq '') { $rows = 16; }
195: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
196: $result='';
197: if ($addchars) {
198: $result.=&addchars('HWVAL_'.$resid,$addchars);
199: }
200: my $textareaclass = 'class="LC_richDetectHtml"';
201: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
202: 'rows="'.$rows.'" cols="'.$cols.'" '.$textareaclass.'>'.
203: $oldresponse;
204: if ($oldresponse ne '') {
205:
206: #get rid of any startup text if the user has already responded
207: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
208: }
209: } else {
210: #show past answer in the essayresponse case
211: if ($oldresponse =~ /\S/
212: && &Apache::londefdef::is_inside_of($tagstack,
213: 'essayresponse') ) {
214: $result='<table class="LC_pastsubmission"><tr><td>'.
215: $oldresponse.'</td></tr></table>';
216: }
217: #get rid of any startup text
218: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
219: }
220: } elsif ($target eq 'grade') {
221: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
222: $style);
223: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
224: # if the seed text is still there it wasn't a real submission
225: $env{'form.HWVAL_'.$resid}='';
226: }
227: } elsif ($target eq 'edit') {
228: $result.=&Apache::edit::tag_start($target,$token);
229: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
230: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
231: $result.=&Apache::edit::text_arg
232: ('Click-On Texts (comma sep):','addchars',$token,10);
233: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
234: $style);
235: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
236: } elsif ($target eq 'modified') {
237: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
238: $safeeval,'rows','cols',
239: 'addchars');
240: if ($constructtag) {
241: $result = &Apache::edit::rebuild_tag($token);
242: } else {
243: $result=$token->[4];
244: }
245: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
246: } elsif ($target eq 'tex') {
247: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
248: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
249: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
250: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
251: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
252: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
253: } else {
254: my $TeXwidth=$width_of_box/80;
255: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
256: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
257: $result.='}}}\vskip 2 mm ';
258: }
259: }
260: return $result;
261: }
262:
263: sub end_textfield {
264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
265: my $result;
266: if ($target eq 'web') {
267: $Apache::lonxml::evaluate++;
268: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
269: return "</textarea>";
270: }
271: } elsif ($target eq 'edit') {
272: $result=&Apache::edit::end_table();
273: }
274: &end_input;
275: return $result;
276: }
277:
278: sub exam_score_line {
279: my ($target) = @_;
280:
281: my $result;
282: if ($target eq 'tex') {
283: my $repetition = &Apache::response::repetition();
284: $result.='\begin{enumerate}';
285: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
286: foreach my $i (0..$repetition-1) {
287: $result.='\item[\textbf{'.
288: ($Apache::lonxml::counter+$i).
289: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
290: }
291: $result.= '\end{enumerate}';
292: }
293:
294: return $result;
295: }
296:
297: sub exam_box {
298: my ($target) = @_;
299: my $result;
300:
301: if ($target eq 'tex') {
302: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
303: $result .= &exam_score_line($target);
304: } elsif ($target eq 'web') {
305: my $id=$Apache::inputtags::response[-1];
306: $result.= '<br /><br />
307: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
308: </textarea> <br /><br />';
309: }
310: return $result;
311: }
312:
313: sub needs_exam_box {
314: my ($tagstack) = @_;
315: my @tags = ('formularesponse',
316: 'stringresponse',
317: 'reactionresponse',
318: 'organicresponse',
319: );
320:
321: foreach my $tag (@tags) {
322: if (grep(/\Q$tag\E/,@$tagstack)) {
323: return 1;
324: }
325: }
326: return 0;
327: }
328:
329: sub start_textline {
330: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
331: my $result = "";
332: my $input_id = &start_input($parstack,$safeeval);
333: if ($target eq 'web') {
334: $Apache::lonxml::evaluate--;
335: my $partid=$Apache::inputtags::part;
336: my $id=$Apache::inputtags::response[-1];
337: if (!&Apache::response::show_answer()) {
338: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
339: my $maxlength;
340: if ($size eq '') { $size=20; } else {
341: if ($size < 20) {
342: $maxlength = ' maxlength="'.$size.'"';
343: }
344: }
345: my ($oldresponse,$newvariation);
346: if ((($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry') ||
347: ($Apache::lonhomework::type eq 'randomizetry')) &&
348: ($Apache::inputtags::status[-1] eq 'CAN_ANSWER')) {
349: if ($env{'form.'.$partid.'.rndseed'} ne
350: $Apache::lonhomework::history{"resource.$partid.rndseed"}) {
351: $newvariation = 1;
352: }
353: }
354: unless ($newvariation) {
355: $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
356: &Apache::lonxml::debug("oldresponse $oldresponse is ".ref($oldresponse));
357:
358: if (ref($oldresponse) eq 'ARRAY') {
359: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
360: }
361: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
362: $oldresponse =~ s/^\s+//;
363: $oldresponse =~ s/\s+$//;
364: $oldresponse =~ s/\s+/ /g;
365: }
366: if ($Apache::lonhomework::type ne 'exam') {
367: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
368: $result='';
369: if ($addchars) {
370: $result.=&addchars('HWVAL_'.$id,$addchars);
371: }
372: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
373: $safeeval);
374: if (lc($readonly) eq 'yes'
375: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
376: $readonly=' readonly="readonly" ';
377: } else {
378: $readonly='';
379: }
380: my $name = 'HWVAL_'.$id;
381: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
382: $name = "none";
383: }
384: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
385: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
386: }
387: if ($Apache::lonhomework::type eq 'exam'
388: && &needs_exam_box($tagstack)) {
389: $result.=&exam_box($target);
390: }
391: } else {
392: #right or wrong don't show what was last typed in.
393: my $count = scalar(@Apache::inputtags::inputlist)-1;
394: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
395: #$result='';
396: }
397: } elsif ($target eq 'edit') {
398: $result=&Apache::edit::tag_start($target,$token);
399: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
400: &Apache::edit::text_arg('Click-On Texts (comma sep):',
401: 'addchars',$token,10);
402: $result.=&Apache::edit::select_arg('Readonly:','readonly',
403: ['no','yes'],$token);
404: $result.=&Apache::edit::end_row();
405: $result.=&Apache::edit::end_table();
406: } elsif ($target eq 'modified') {
407: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
408: $safeeval,'size',
409: 'addchars','readonly');
410: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
411: } elsif ($target eq 'tex'
412: && $Apache::lonhomework::type ne 'exam') {
413: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
414: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
415: if ($env{'form.pdfFormFields'} eq 'yes'
416: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
417: my $fieldname = $env{'request.symb'}.
418: '&part_'. $Apache::inputtags::part.
419: '&textresponse'.
420: '&HWVAL_' . $Apache::inputtags::response['-1'];
421: $result='\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
422: } else {
423: $result='\framebox['.$size.'][s]{\tiny\strut}';
424: }
425: } elsif ($target eq 'tex'
426: && $Apache::lonhomework::type eq 'exam'
427: && &needs_exam_box($tagstack)) {
428: $result.=&exam_box($target);
429: }
430: return $result;
431: }
432:
433: sub end_textline {
434: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
435: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
436: elsif ($target eq 'edit') { return ('','no'); }
437: &end_input();
438: return "";
439: }
440:
441: sub start_hiddenline {
442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
443: my $result = "";
444: my $input_id = &start_input($parstack,$safeeval);
445: if ($target eq 'web') {
446: $Apache::lonxml::evaluate--;
447: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
448: my $partid=$Apache::inputtags::part;
449: my $id=$Apache::inputtags::response[-1];
450: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
451: if (ref($oldresponse) eq 'ARRAY') {
452: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
453: }
454: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
455:
456: if ($Apache::lonhomework::type ne 'exam') {
457: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
458: $oldresponse.'" />';
459: }
460: }
461: } elsif ($target eq 'edit') {
462: $result=&Apache::edit::tag_start($target,$token);
463: $result.=&Apache::edit::end_table;
464: }
465:
466: if ( ($target eq 'web' || $target eq 'tex')
467: && $Apache::lonhomework::type eq 'exam'
468: && &needs_exam_box($tagstack)) {
469: $result.=&exam_box($target);
470: }
471: return $result;
472: }
473:
474: sub end_hiddenline {
475: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
476: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
477: elsif ($target eq 'edit') { return ('','no'); }
478: &end_input();
479: return "";
480: }
481:
482: =pod
483:
484: =item file_selector()
485:
486: $part -> partid
487: $id -> responseid
488: $uploadefiletypes -> comma seperated list of extensions allowed or * for any
489: $which -> 'uploadonly' -> only newly uploaded files
490: 'portfolioonly' -> only allow files from portfolio
491: 'both' -> allow files from either location
492: $extratext -> additional text to go between the link and the input box
493: $maxfilesize -> maximum cumulative filesize for submitted files (in MB).
494: returns a table row <tr>
495:
496: =cut
497:
498: sub file_selector {
499: my ($part,$id,$uploadedfiletypes,$which,$extratext,$maxfilesize)=@_;
500: if (!$uploadedfiletypes) { return ''; }
501:
502: my $jspart=$part;
503: $jspart=~s/\./_/g;
504:
505: my $result;
506: my $current_files_display = ¤t_file_submissions($part,$id);
507: my $addfiles;
508: if ($current_files_display) {
509: $result .= &Apache::lonhtmlcommon::row_title(&mt('Currently submitted files')).
510: $current_files_display.
511: &Apache::lonhtmlcommon::row_closure();
512: $addfiles = &mt('Submit other file(s)');
513: } else {
514: $addfiles = &mt('Choose file(s) to submit');
515: }
516: $result .= &Apache::lonhtmlcommon::row_title($addfiles);
517: my $constraints;
518: if ($uploadedfiletypes ne '*') {
519: $constraints =
520: &mt('Allowed filetypes: [_1]','<b>'.$uploadedfiletypes.'</b>').'<br />';
521: }
522: if ($maxfilesize) {
523: $constraints .= &mt('Combined size of all files not to exceed: [_1] MB[_2].',
524: '<b>'.$maxfilesize.'</b>').'<br />';
525: }
526: if ($constraints) {
527: $result .= $constraints.'<br />';
528: }
529: if ($which eq 'uploadonly' || $which eq 'both') {
530: $result.=&mt('Submit a file: (only one file per submission)').
531: ' <br /><input type="file" size="50" name="HWFILE'.
532: $jspart.'_'.$id.'" /><br />';
533: }
534: if ( $which eq 'both') {
535: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
536: }
537: if ($which eq 'portfolioonly' || $which eq 'both') {
538: $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"))'."'".'>'.
539: &mt('Select Portfolio Files: (one or more files per submission)').'</a><br />'.
540: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
541: '<br />';
542:
543: }
544: $result.=&Apache::lonhtmlcommon::row_closure(1);
545: return $result;
546: }
547:
548: sub current_file_submissions {
549: my ($part,$id) = @_;
550: my $jspart=$part;
551: $jspart=~s/\./_/g;
552: my $uploadedfile=$Apache::lonhomework::history{"resource.$part.$id.uploadedfile"};
553: my $portfiles=$Apache::lonhomework::history{"resource.$part.$id.portfiles"};
554: return if (($uploadedfile eq '') && ($portfiles !~/[^\s]/));
555: my $header = &Apache::loncommon::start_data_table().
556: &Apache::loncommon::start_data_table_header_row();
557: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
558: $header .= '<th>'.&mt('Delete?').'</th>';
559: }
560: $header .= '<th>'.&mt('File').'</th>'.
561: '<th>'.&mt('Size (MB)').'</th>'.
562: '<th>'.&mt('Last Modified').'</th>'.
563: &Apache::loncommon::end_data_table_header_row();
564: my (undef,$crsid,$udom,$uname)=&Apache::lonnet::whichuser();
565: my ($cdom,$cnum) = ($crsid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/);
566: my ($result,$header_shown,%okfiles,%rows,%legacy,@bad_file_list);
567: if ($uploadedfile) {
568: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
569: my $link = &HTML::Entities::encode($url,'<>&"');
570: my ($path,$name) = ($url =~ m{^(/uploaded/\Q$udom\E/\Q$uname\E/essayresponse.*/)([^/]+)$});
571: my ($status,$hashref,$error) =
572: ¤t_file_info($url,$link,$name,$path);
573: if ($status eq 'ok') {
574: push(@{$okfiles{$name}},$url);
575: $rows{$url} = $hashref;
576: $legacy{$url} = 1;
577: &Apache::lonxml::extlink($url);
578: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
579: } else {
580: push(@bad_file_list,$error);
581: }
582: }
583: if ($portfiles =~ /[^\s]/) {
584: my $prefix = "/uploaded/$udom/$uname/portfolio";
585: foreach my $file (split(/\s*,\s*/,&unescape($portfiles))) {
586: my ($path,$name) = ($file =~ m{^(.*/)([^/]+)$});
587: my $url = $prefix.$path.$name;
588: my $uploadedfile = &HTML::Entities::encode($url,'<>&"');
589: my ($status,$hashref,$error) =
590: ¤t_file_info($url,$uploadedfile,$name,$path);
591: if ($status eq 'ok') {
592: push(@{$okfiles{$name}},$url);
593: $rows{$url} = $hashref;
594: } else {
595: push(@bad_file_list,$error);
596: }
597: }
598: }
599: my $num = 0;
600: foreach my $name (sort(keys(%okfiles))) {
601: if (ref($okfiles{$name}) eq 'ARRAY') {
602: foreach my $url (@{$okfiles{$name}}) {
603: if (ref($rows{$url}) eq 'HASH') {
604: my $link = $rows{$url}{link};
605: my $portfile = $rows{$url}{path}.$rows{$url}{name};
606: $portfile = &HTML::Entities::encode($portfile,'<>&"');
607: if ($link) {
608: my $icon=&Apache::loncommon::icon($url);
609: unless ($header_shown) {
610: $result .= $header;
611: $header_shown = 1;
612: }
613: $result.=
614: &Apache::loncommon::start_data_table_row()."\n";
615: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
616: $result .=
617: '<td valign="bottom"><input type="checkbox" name="HWFILE'.$jspart.'_'.$id.'_delete"'.
618: ' value="'.$portfile.'" id="HWFILE'.$jspart.'_'.$id.'_'.$num.'_delete" /></td>'."\n";
619: $num ++;
620: }
621: my $showname = $rows{$url}{path}.$name;
622: if ($legacy{$url}) {
623: $showname = $name.' '.&mt('not in portfolio');
624: }
625: $result .=
626: '<td><a href="'.$link.'"><img src="'.$icon.
627: '" border="0" alt="" />'.$showname.'</a></td>'."\n".
628: '<td align="right" valign="bottom">'.$rows{$url}{size}.'</td>'."\n".
629: '<td align="right" valign="bottom">'.$rows{$url}{lastmodified}.'</td>'."\n".
630: &Apache::loncommon::end_data_table_row();
631: }
632: }
633: }
634: }
635: }
636: if ($header_shown) {
637: $result .= &Apache::loncommon::end_data_table().
638: '<br /><span class="LC_warning">'.
639: &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
640: }
641: if (@bad_file_list) {
642: my $bad_files = '<span class="LC_filename">'.
643: join('</span>, <span class="LC_filename">',@bad_file_list).
644: '</span>';
645: $result.='<p class="LC_error">'.
646: &mt("These file(s) don't exist: [_1]",$bad_files).
647: '</p>';
648: }
649: return $result;
650: }
651:
652: sub current_file_info {
653: my ($url,$uploadedfile,$name,$path) = @_;
654: my ($status,$error,%info);
655: my @stat = &Apache::lonnet::stat_file($url);
656: if ((@stat) && ($stat[0] ne 'no_such_dir')) {
657: my ($lastmod,$size);
658: if ($stat[9] =~ /^\d+$/) {
659: $lastmod = &Apache::lonlocal::locallocaltime($stat[9]);
660: }
661: $size = $stat[7]/(1024*1024);
662: $size = sprintf("%.3f",$size);
663: %info = (
664: link => $uploadedfile,
665: name => $name,
666: path => $path,
667: size => $size,
668: lastmodified => $lastmod,
669: );
670: $status = 'ok';
671: } else {
672: &Apache::lonnet::logthis("bad file is $url");
673: my $icon=&Apache::loncommon::icon($url);
674: $error = '<a href="'.$url.'"><img src="'.$icon.
675: '" border="0" />'.$uploadedfile.'</a>';
676: }
677: return ($status,\%info,$error);
678: }
679:
680: sub valid_award {
681: my ($award) =@_;
682: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
683: 'NO_RESPONSE',
684: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
685: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
686: 'UNIT_FAIL', 'NO_UNIT',
687: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
688: 'BAD_FORMULA', 'NOT_FUNCTION', 'WRONG_FORMAT',
689: 'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT',
690: 'MISORDERED_RANK', 'INVALID_FILETYPE',
691: 'EXCESS_FILESIZE', 'FILENAME_INUSE',
692: 'DRAFT', 'SUBMITTED', 'SUBMITTED_CREDIT',
693: 'ANONYMOUS', 'ANONYMOUS_CREDIT',
694: 'ASSIGNED_SCORE', 'APPROX_ANS',
695: 'EXACT_ANS','COMMA_FAIL') {
696: if ($award eq $possibleaward) { return 1; }
697: }
698: return 0;
699: }
700:
701: {
702: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
703: 'TOO_LONG',
704: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
705: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
706: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA', 'NOT_FUNCTION',
707: 'WRONG_FORMAT', 'INTERNAL_ERROR',
708: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
709: 'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'FILENAME_INUSE',
710: 'DRAFT', 'SUBMITTED',
711: 'SUBMITTED_CREDIT', 'ANONYMOUS', 'ANONYMOUS_CREDIT',
712: 'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
713: my $i=0;
714: my %fwd_awards = map { ($_,$i++) } @awards;
715: my $max=scalar(@awards);
716: @awards=reverse(@awards);
717: $i=0;
718: my %rev_awards = map { ($_,$i++) } @awards;
719:
720: sub awarddetail_to_awarded {
721: my ($awarddetail) = @_;
722: if ($awarddetail eq 'EXACT_ANS'
723: || $awarddetail eq 'APPROX_ANS') {
724: return 1;
725: }
726: return 0;
727: }
728:
729: sub hide_award {
730: my ($award) = @_;
731: if (&Apache::lonhomework::show_no_problem_status()) {
732: return 1;
733: }
734: if ($award =~
735: /^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|SUBMITTED_CREDIT|ANONYMOUS|ANONYMOUS_CREDIT|ASSIGNED_SCORE|INCORRECT)/) {
736: return 1;
737: }
738: return 0;
739: }
740:
741: sub finalizeawards {
742: my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
743: my $result;
744: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
745: if ($result eq '' ) {
746: my $blankcount;
747: foreach my $award (@$awardref) {
748: if ($award eq '') {
749: $result='MISSING_ANSWER';
750: $blankcount++;
751: }
752: }
753: if ($blankcount == ($#$awardref + 1)) {
754: return ('NO_RESPONSE');
755: }
756: }
757:
758: if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
759:
760: if (!$final_scantron && defined($result)) { return ($result); }
761:
762: # if in scantron mode, if the award for any response is
763: # assigned score, then the part gets an assigned score
764: if ($final_scantron
765: && grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
766: return ('ASSIGNED_SCORE');
767: }
768:
769: # if in scantron mode, if the award for any response is
770: # correct and there are non-correct responses,
771: # then the part gets an assigned score
772: if ($final_scantron
773: && (grep { $_ eq 'EXACT_ANS' ||
774: $_ eq 'APPROX_ANS' } (@$awardref))
775: && (grep { $_ ne 'EXACT_ANS' &&
776: $_ ne 'APPROX_ANS' } (@$awardref))) {
777: return ('ASSIGNED_SCORE');
778: }
779: # these awards are ordered from most important error through best correct
780: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
781:
782: my $best = $max;
783: my $j=0;
784: my $which;
785: foreach my $award (@$awardref) {
786: if ($awards->{$award} < $best) {
787: $best = $awards->{$award};
788: $which = $j;
789: }
790: $j++;
791: }
792:
793: if (defined($which)) {
794: if (ref($nameref)) {
795: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
796: } else {
797: return ($$awardref[$which],$$msgref[$which]);
798: }
799: }
800: return ('ERROR',undef);
801: }
802: }
803:
804: sub decideoutput {
805: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
806:
807: my $message='';
808: my $button=0;
809: my $previousmsg;
810: my $css_class='orange';
811: my $added_computer_text=0;
812: my %possible_class =
813: ( 'correct' => 'LC_answer_correct',
814: 'charged_try' => 'LC_answer_charged_try',
815: 'not_charged_try' => 'LC_answer_not_charged_try',
816: 'no_grade' => 'LC_answer_no_grade',
817: 'no_message' => 'LC_no_message',
818: );
819:
820: my $part = $Apache::inputtags::part;
821: my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
822: my $handgrade = ('yes' eq lc($tohandgrade));
823:
824: my $computer = ($handgrade)? ''
825: : " ".&mt("Computer's answer now shown above.");
826: &Apache::lonxml::debug("handgrade has :$handgrade:");
827:
828: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
829:
830: if ($solved =~ /^correct/) {
831: $css_class=$possible_class{'correct'};
832: $message=&mt('You are correct.');
833: if ($awarded < 1 && $awarded > 0) {
834: $message=&mt('You are partially correct.');
835: $css_class=$possible_class{'not_charged_try'};
836: } elsif ($awarded < 1) {
837: $message=&mt('Incorrect.');
838: $css_class=$possible_class{'charged_try'};
839: }
840: if ($env{'request.filename'} =~
841: m|/res/lib/templates/examupload.problem$|) {
842: $message = &mt("A score has been assigned.");
843: $added_computer_text=1;
844: } else {
845: if ($target eq 'tex') {
846: $message = '\textbf{'.$message.'}';
847: } else {
848: $message = "<b>".$message."</b>";
849: $message.= $computer;
850: }
851: $added_computer_text=1;
852: if ($awarded > 0) {
853: my ($symb) = &Apache::lonnet::whichuser();
854: if (($symb ne '')
855: &&
856: ($env{'course.'.$env{'request.course.id'}.
857: '.disable_receipt_display'} ne 'yes') &&
858: ($Apache::lonhomework::type ne 'practice')) {
859: $message.=(($target eq 'web')?'<br />':' ').
860: &mt('Your receipt no. is [_1]',
861: (&Apache::lonnet::receipt($Apache::inputtags::part).
862: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
863: }
864: }
865: }
866: $button=0;
867: $previousmsg='';
868: } elsif ($solved =~ /^excused/) {
869: if ($target eq 'tex') {
870: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
871: } else {
872: $message = "<b>".&mt('You are excused from the problem.')."</b>";
873: }
874: $css_class=$possible_class{'charged_try'};
875: $button=0;
876: $previousmsg='';
877: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
878: if ($solved =~ /^incorrect/ || $solved eq '') {
879: $message = &mt("Incorrect").".";
880: $css_class=$possible_class{'charged_try'};
881: $button=1;
882: } else {
883: if ($target eq 'tex') {
884: $message = '\textbf{'.&mt('You are correct.').'}';
885: } else {
886: $message = "<b>".&mt('You are correct.')."</b>";
887: $message.= $computer;
888: }
889: $added_computer_text=1;
890: if ($awarded > 0
891: && $env{'course.'.
892: $env{'request.course.id'}.
893: '.disable_receipt_display'} ne 'yes') {
894: $message.=(($target eq 'web')?'<br />':' ').
895: &mt('Your receipt is [_1]',
896: (&Apache::lonnet::receipt($Apache::inputtags::part).
897: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
898: }
899: $css_class=$possible_class{'correct'};
900: $button=0;
901: $previousmsg='';
902: }
903: } elsif ($award eq 'NO_RESPONSE') {
904: $message = '';
905: $css_class=$possible_class{'no_feedback'};
906: $button=1;
907: } elsif ($award eq 'EXTRA_ANSWER') {
908: $message = &mt('Some extra items were submitted.');
909: $css_class=$possible_class{'not_charged_try'};
910: $button = 1;
911: } elsif ($award eq 'MISSING_ANSWER') {
912: $message = &mt('Some items were not submitted.');
913: if ($target ne 'tex') {
914: $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
915: }
916: $css_class=$possible_class{'not_charged_try'};
917: $button = 1;
918: } elsif ($award eq 'ERROR') {
919: $message = &mt('An error occurred while grading your answer.');
920: $css_class=$possible_class{'not_charged_try'};
921: $button = 1;
922: } elsif ($award eq 'TOO_LONG') {
923: $message = &mt("The submitted answer was too long.");
924: $css_class=$possible_class{'not_charged_try'};
925: $button=1;
926: } elsif ($award eq 'WANTED_NUMERIC') {
927: $message = &mt("This question expects a numeric answer.");
928: $css_class=$possible_class{'not_charged_try'};
929: $button=1;
930: } elsif ($award eq 'MISORDERED_RANK') {
931: $message = &mt('You have provided an invalid ranking.');
932: if ($target ne 'tex') {
933: $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
934: }
935: $css_class=$possible_class{'not_charged_try'};
936: $button=1;
937: } elsif ($award eq 'EXCESS_FILESIZE') {
938: $message = &mt('Submission won\'t be graded. The combined size of submitted files exceeded the amount allowed.');
939: $css_class=$possible_class{'not_charged_try'};
940: $button=1;
941: } elsif ($award eq 'FILENAME_INUSE') {
942: $message = &mt('You have already uploaded a file with that filename.');
943: if ($target eq 'tex') {
944: $message.= "\\\\\n";
945: } else {
946: $message .= '<br />';
947: }
948: $message .= &mt('Please use a different file name.');
949: $css_class=$possible_class{'not_charged_try'};
950: $button=1;
951: } elsif ($award eq 'INVALID_FILETYPE') {
952: $message = &mt("Submission won't be graded. The type of file submitted is not allowed.");
953: $css_class=$possible_class{'not_charged_try'};
954: $button=1;
955: } elsif ($award eq 'SIG_FAIL') {
956: my ($used,$min,$max)=split(':',$awardmsg);
957: my $word = ($used < $min) ? 'more' : 'fewer';
958: $message = &mt("Submission not graded. Use $word digits.",$used);
959: $css_class=$possible_class{'not_charged_try'};
960: $button=1;
961: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
962: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
963: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
964: $css_class=$possible_class{'not_charged_try'};
965: $button=1;
966: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
967: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
968: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
969: $css_class=$possible_class{'not_charged_try'};
970: $button=1;
971: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
972: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
973: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
974: $css_class=$possible_class{'not_charged_try'};
975: $button=1;
976: } elsif ($award eq 'UNIT_NOTNEEDED') {
977: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
978: $css_class=$possible_class{'not_charged_try'};
979: $button=1;
980: } elsif ($award eq 'NO_UNIT') {
981: $message = &mt("Units required").'.';
982: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
983: $css_class=$possible_class{'not_charged_try'};
984: $button=1;
985: } elsif ($award eq 'COMMA_FAIL') {
986: $message = &mt("Proper comma separation is required").'.';
987: $css_class=$possible_class{'not_charged_try'};
988: $button=1;
989: } elsif ($award eq 'BAD_FORMULA') {
990: $message = &mt("Unable to understand formula").'.';
991: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
992: $css_class=$possible_class{'not_charged_try'};
993: $button=1;
994: } elsif ($award eq 'NOT_FUNCTION') {
995: $message = &mt("Not a function").'.';
996: $css_class=$possible_class{'not_charged_try'};
997: $button=1;
998: } elsif ($award eq 'WRONG_FORMAT') {
999: $message = &mt("Wrong format").'.';
1000: $css_class=$possible_class{'not_charged_try'};
1001: $button=1;
1002: } elsif ($award eq 'INTERNAL_ERROR') {
1003: $message = &mt("An internal error occurred while processing your answer. Please try again later.");
1004: $css_class=$possible_class{'not_charged_try'};
1005: $button=1;
1006: } elsif ($award eq 'INCORRECT') {
1007: $message = &mt("Incorrect").'.';
1008: $css_class=$possible_class{'charged_try'};
1009: $button=1;
1010: } elsif ($award eq 'SUBMITTED') {
1011: $message = &mt("Your submission has been recorded.");
1012: $css_class=$possible_class{'no_grade'};
1013: $button=1;
1014: } elsif ($award eq 'SUBMITTED_CREDIT') {
1015: $message = &mt("Your submission has been recorded, and credit awarded.");
1016: $css_class=$possible_class{'correct'};
1017: $button=1;
1018: } elsif ($award eq 'ANONYMOUS') {
1019: $message = &mt("Your anonymous submission has been recorded.");
1020: $css_class=$possible_class{'no_grade'};
1021: $button=1;
1022: } elsif ($award eq 'ANONYMOUS_CREDIT') {
1023: $message = &mt("Your anonymous submission has been recorded, and credit awarded.");
1024: $css_class=$possible_class{'correct'};
1025: } elsif ($award eq 'DRAFT') {
1026: $message = &mt("Copy saved but not submitted.");
1027: $css_class=$possible_class{'not_charged_try'};
1028: $button=1;
1029: } elsif ($award eq 'ASSIGNED_SCORE') {
1030: $message = &mt("A score has been assigned.");
1031: $css_class=$possible_class{'correct'};
1032: $button=0;
1033: } elsif ($award eq '') {
1034: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
1035: $message = &mt("Nothing submitted.");
1036: $css_class=$possible_class{'charged_try'};
1037: } else {
1038: $css_class=$possible_class{'not_charged_try'};
1039: }
1040: $button=1;
1041: } else {
1042: $message = &mt("Unknown message").": $award";
1043: $button=1;
1044: }
1045: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
1046: foreach my $resid(@Apache::inputtags::response){
1047: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
1048: if ($target eq 'tex') {
1049: $message.= "\\\\\n";
1050: } else {
1051: $message.='<br />';
1052: }
1053: my @files = split(/\s*,\s*/,
1054: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
1055: my $file_msg;
1056: foreach my $file (@files) {
1057: if ($target eq 'tex') {
1058: $file_msg.= "\\\\\n".$file;
1059: } else {
1060: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
1061: }
1062: }
1063: $message .= &mt('Returned file(s): [_1]',$file_msg);
1064: if ($target eq 'tex') {
1065: $message.= "\\\\\n";
1066: } else {
1067: $message.='<br />';
1068: }
1069: }
1070: }
1071:
1072: if (&Apache::lonhomework::hide_problem_status()
1073: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
1074: && &hide_award($award)) {
1075: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
1076: $css_class=$possible_class{'no_grade'};
1077: $button=1;
1078: }
1079: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
1080: !$added_computer_text && $target ne 'tex') {
1081: $message.= $computer;
1082: $added_computer_text=1;
1083: }
1084: if ($Apache::lonhomework::type eq 'practice') {
1085: if ($target eq 'web') {
1086: $message .= '<br />';
1087: } else {
1088: $message .= ' ';
1089: }
1090: $message.=&mt('Submissions to practice problems are not permanently recorded.');
1091: }
1092:
1093: return ($button,$css_class,$message,$previousmsg);
1094: }
1095:
1096: sub markup_unit {
1097: my ($unit,$target)=@_;
1098: if ($target eq 'tex') {
1099: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
1100: } else {
1101: return "<tt>".$unit."</tt>";
1102: }
1103: }
1104:
1105: sub removealldata {
1106: my ($id)=@_;
1107: foreach my $key (keys(%Apache::lonhomework::results)) {
1108: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
1109: &Apache::lonxml::debug("Removing $key");
1110: delete($Apache::lonhomework::results{$key});
1111: }
1112: }
1113: }
1114:
1115: sub hidealldata {
1116: my ($id)=@_;
1117: foreach my $key (keys(%Apache::lonhomework::results)) {
1118: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
1119: &Apache::lonxml::debug("Hidding $key");
1120: my $newkey=$key;
1121: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
1122: $Apache::lonhomework::results{$newkey}=
1123: $Apache::lonhomework::results{$key};
1124: delete($Apache::lonhomework::results{$key});
1125: }
1126: }
1127: }
1128:
1129: sub setgradedata {
1130: my ($award,$msg,$id,$previously_used) = @_;
1131: if ($Apache::lonhomework::scantronmode &&
1132: &Apache::lonnet::validCODE($env{'form.CODE'})) {
1133: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
1134: } elsif ($Apache::lonhomework::scantronmode &&
1135: $env{'form.CODE'} eq '' &&
1136: $Apache::lonhomework::history{"resource.CODE"} ne '') {
1137: $Apache::lonhomework::results{"resource.CODE"}='';
1138: }
1139:
1140: if (!$Apache::lonhomework::scantronmode &&
1141: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1142: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1143: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
1144: return '';
1145: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
1146: /^correct/
1147: || $Apache::lonhomework::scantronmode
1148: || &Apache::lonhomework::hide_problem_status() ) {
1149: # the student doesn't already have it correct,
1150: # or we are in a mode (scantron orno problem status) where a correct
1151: # can become incorrect
1152: # handle assignment of tries and solved status
1153: my $solvemsg;
1154: if ($Apache::lonhomework::scantronmode) {
1155: $solvemsg='correct_by_scantron';
1156: } else {
1157: $solvemsg='correct_by_student';
1158: }
1159: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
1160: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
1161: }
1162: if ( $award eq 'ASSIGNED_SCORE') {
1163: $Apache::lonhomework::results{"resource.$id.tries"} =
1164: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1165: $Apache::lonhomework::results{"resource.$id.solved"} =
1166: $solvemsg;
1167: my $numawards=scalar(@Apache::inputtags::response);
1168: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1169: foreach my $res (@Apache::inputtags::response) {
1170: if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
1171: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1172: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
1173: } else {
1174: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1175: &awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
1176: }
1177: }
1178: if ($numawards > 0) {
1179: $Apache::lonhomework::results{"resource.$id.awarded"}/=
1180: $numawards;
1181: }
1182: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
1183: $Apache::lonhomework::results{"resource.$id.tries"} =
1184: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1185: $Apache::lonhomework::results{"resource.$id.solved"} =
1186: $solvemsg;
1187: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1188: } elsif ( $award eq 'SUBMITTED_CREDIT' ) {
1189: $Apache::lonhomework::results{"resource.$id.tries"} =
1190: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1191: $Apache::lonhomework::results{"resource.$id.solved"} =
1192: 'credit_attempted';
1193: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1194: } elsif ( $award eq 'ANONYMOUS_CREDIT' ) {
1195: $Apache::lonhomework::results{"resource.$id.tries"} =
1196: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1197: $Apache::lonhomework::results{"resource.$id.solved"} =
1198: 'credit_attempted';
1199: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1200: } elsif ( $award eq 'INCORRECT' ) {
1201: $Apache::lonhomework::results{"resource.$id.tries"} =
1202: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1203: if (&Apache::lonhomework::hide_problem_status()
1204: || $Apache::lonhomework::scantronmode) {
1205: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1206: }
1207: $Apache::lonhomework::results{"resource.$id.solved"} =
1208: 'incorrect_attempted';
1209: } elsif ( $award eq 'SUBMITTED' ) {
1210: $Apache::lonhomework::results{"resource.$id.tries"} =
1211: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1212: $Apache::lonhomework::results{"resource.$id.solved"} =
1213: 'ungraded_attempted';
1214: } elsif ( $award eq 'ANONYMOUS' ) {
1215: $Apache::lonhomework::results{"resource.$id.tries"} =
1216: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1217: $Apache::lonhomework::results{"resource.$id.solved"} =
1218: 'ungraded_attempted';
1219: } elsif ( $award eq 'DRAFT' ) {
1220: $Apache::lonhomework::results{"resource.$id.solved"} = '';
1221: } elsif ( $award eq 'NO_RESPONSE' ) {
1222: #no real response so delete any data that got stored
1223: &removealldata($id);
1224: return '';
1225: } else {
1226: $Apache::lonhomework::results{"resource.$id.solved"} =
1227: 'incorrect_attempted';
1228: if (&Apache::lonhomework::show_no_problem_status()
1229: || $Apache::lonhomework::scantronmode) {
1230: $Apache::lonhomework::results{"resource.$id.tries"} =
1231: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1232: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1233: }
1234:
1235: if (&Apache::lonhomework::show_some_problem_status()) {
1236: # clear out the awarded if they had gotten it wrong/right
1237: # and are now in an error mode
1238: $Apache::lonhomework::results{"resource.$id.awarded"} = '';
1239: }
1240: }
1241: if (defined($msg)) {
1242: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
1243: }
1244: # did either of the overall awards chage? If so ignore the
1245: # previous check
1246: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
1247: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
1248: ($Apache::lonhomework::results{"resource.$id.solved"} eq
1249: $Apache::lonhomework::history{"resource.$id.solved"})) {
1250: # check if this was a previous submission if it was delete the
1251: # unneeded data and update the previously_used attribute
1252: if ( $previously_used eq 'PREVIOUSLY_USED') {
1253: if (&Apache::lonhomework::show_problem_status()) {
1254: delete($Apache::lonhomework::results{"resource.$id.tries"});
1255: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
1256: }
1257: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
1258: #delete all data as they student didn't do anything, but save
1259: #the list of collaborators.
1260: &removealldata($id);
1261: #and since they didn't do anything we were never here
1262: return '';
1263: } else {
1264: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
1265: }
1266: }
1267: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
1268: /^correct/ ) {
1269: #delete all data as they student already has it correct
1270: &removealldata($id);
1271: #and since they didn't do anything we were never here
1272: return '';
1273: }
1274: $Apache::lonhomework::results{"resource.$id.award"} = $award;
1275: if ($award eq 'SUBMITTED') {
1276: &Apache::response::add_to_gradingqueue();
1277: }
1278: if (($Apache::lonhomework::type eq 'anonsurvey') ||
1279: ($Apache::lonhomework::type eq 'anonsurveycred') ||
1280: ($Apache::lonhomework::type eq 'randomizetry')) {
1281: $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
1282: }
1283: if ($Apache::lonhomework::type eq 'randomizetry') {
1284: $Apache::lonhomework::results{"resource.$id.rndseed"} = $env{'form.'.$id.'.rndseed'};
1285: }
1286: }
1287:
1288: sub find_which_previous {
1289: my ($version) = @_;
1290: my $part = $Apache::inputtags::part;
1291: my (@previous_version);
1292: foreach my $resp (@Apache::inputtags::response) {
1293: my $key = "$version:resource.$part.$resp.submission";
1294: my $submission = $Apache::lonhomework::history{$key};
1295: my %previous = &Apache::response::check_for_previous($submission,
1296: $part,$resp,
1297: $version);
1298: push(@previous_version,$previous{'version'});
1299: }
1300: return &previous_match(\@previous_version,
1301: scalar(@Apache::inputtags::response));
1302: }
1303:
1304: sub previous_match {
1305: my ($previous_array,$count) = @_;
1306: my $match = 0;
1307: my @matches;
1308: foreach my $versionar (@$previous_array) {
1309: foreach my $version (@$versionar) {
1310: $matches[$version]++;
1311: }
1312: }
1313: my $which=0;
1314: foreach my $elem (@matches) {
1315: if ($elem eq $count) {
1316: $match=1;
1317: last;
1318: }
1319: $which++;
1320: }
1321: return ($match,$which);
1322: }
1323:
1324: sub grade {
1325: my ($target) = @_;
1326: my $id = $Apache::inputtags::part;
1327: my $response='';
1328: if ( defined $env{'form.submitted'}) {
1329: my (@awards,@msgs);
1330: foreach $response (@Apache::inputtags::response) {
1331: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1332: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1333: &Apache::lonxml::debug("keeping $value from $response for $id");
1334: push (@awards,$value);
1335: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1336: &Apache::lonxml::debug("got message $value from $response for $id");
1337: push (@msgs,$value);
1338: }
1339: my ($finalaward,$msg) =
1340: &finalizeawards(\@awards,\@msgs,undef,undef,
1341: $Apache::lonhomework::scantronmode);
1342: my $previously_used;
1343: if ( $#Apache::inputtags::previous eq $#awards ) {
1344: my ($match) =
1345: &previous_match(\@Apache::inputtags::previous_version,
1346: scalar(@Apache::inputtags::response));
1347:
1348: if ($match) {
1349: $previously_used = 'PREVIOUSLY_LAST';
1350: foreach my $value (@Apache::inputtags::previous) {
1351: if ($value eq 'PREVIOUSLY_USED' ) {
1352: $previously_used = $value;
1353: last;
1354: }
1355: }
1356: }
1357: }
1358: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1359: &setgradedata($finalaward,$msg,$id,$previously_used);
1360: }
1361: return '';
1362: }
1363:
1364: sub get_grade_messages {
1365: my ($id,$prefix,$target,$status) = @_;
1366:
1367: my ($message,$latemessage,$trystr,$previousmsg);
1368: my $showbutton = 1;
1369:
1370: my $award = $Apache::lonhomework::history{"$prefix.award"};
1371: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1372: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1373: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1374: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1375: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1376: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1377: &Apache::lonxml::debug('Getting message');
1378: ($showbutton,my $css_class,$message,$previousmsg) =
1379: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1380: $target);
1381: if ($target eq 'tex') {
1382: $message='\vskip 2 mm '.$message.' ';
1383: } else {
1384: $message="<td class=\"$css_class\">$message</td>";
1385: if ($previousmsg) {
1386: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1387: }
1388: }
1389: }
1390: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1391: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1392: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1393: #if tries are set to negative turn off the Tries/Button and messages
1394: if (defined($maxtries) && $maxtries < 0) { return ''; }
1395: if ( $tries eq '' ) { $tries = '0'; }
1396: if ( $maxtries eq '' ) { $maxtries = '2'; }
1397: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1398: my $tries_text= &get_tries_text();;
1399: if ($showbutton) {
1400: if ($target eq 'tex') {
1401: if ($env{'request.state'} ne "construct"
1402: && $Apache::lonhomework::type ne 'exam'
1403: && $env{'form.suppress_tries'} ne 'yes') {
1404: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1405: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1406: } else {
1407: $trystr = '\vskip 0 mm ';
1408: }
1409: } else {
1410: $trystr = '<td><span class="LC_nobreak">'.&mt($tries_text)." $tries";
1411: if ($Apache::lonhomework::parsing_a_task) {
1412: } elsif($env{'request.state'} ne 'construct') {
1413: $trystr.="/$maxtries";
1414: } else {
1415: if (defined($Apache::inputtags::params{'maxtries'})) {
1416: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1417: }
1418: }
1419: $trystr.="</span></td>";
1420: }
1421: }
1422:
1423: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1424: #last submissions was after due date
1425: $latemessage=&mt(' The last submission was after the Due Date ');;
1426: if ($target eq 'web') {
1427: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1428: }
1429: }
1430: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1431: }
1432:
1433: sub gradestatus {
1434: my ($id,$target,$no_previous) = @_;
1435: my $showbutton = 1;
1436: my $message = '';
1437: my $latemessage = '';
1438: my $trystr='';
1439: my $button='';
1440: my $previousmsg='';
1441:
1442: my $status = $Apache::inputtags::status['-1'];
1443: &Apache::lonxml::debug("gradestatus has :$status:");
1444: if ( $status ne 'CLOSED'
1445: && $status ne 'UNAVAILABLE'
1446: && $status ne 'INVALID_ACCESS'
1447: && $status ne 'NEEDS_CHECKIN'
1448: && $status ne 'NOT_IN_A_SLOT') {
1449:
1450: ($previousmsg,$latemessage,$message,$trystr) =
1451: &get_grade_messages($id,"resource.$id",$target,$status,
1452: $showbutton);
1453: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1454: $showbutton = 0;
1455: }
1456: if ( $status eq 'SHOW_ANSWER') {
1457: undef($previousmsg);
1458: }
1459: if ( $showbutton ) {
1460: if ($target ne 'tex') {
1461: $button =
1462: '<input onmouseup="javascript:setSubmittedPart(\''.$id.'\');this.form.action+=\'#'.&escape($id).'\';"
1463: type="submit" name="submit_'.$id.'"
1464: value="'.&mt('Submit Answer').'" />';
1465: }
1466: }
1467:
1468: }
1469: my $output= $previousmsg.$latemessage.$message.$trystr;
1470: if ($output =~ /^\s*$/) {
1471: return $button;
1472: } else {
1473: if ($target eq 'tex') {
1474: return $button.' \vskip 0 mm '.$output.' ';
1475: } else {
1476: $output =
1477: '<table><tr><td>'.$button.'</td>'.$output;
1478: if (!$no_previous) {
1479: $output.='<td>'.&previous_tries($id,$target).'</td>';
1480: }
1481: $output.= '</tr></table>';
1482: return $output;
1483: }
1484: }
1485: }
1486:
1487: sub previous_tries {
1488: my ($id,$target) = @_;
1489: my $output;
1490: my $status = $Apache::inputtags::status['-1'];
1491:
1492: my $count;
1493: my %count_lookup;
1494: my $lastrndseed;
1495:
1496: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1497: my $prefix = $i.":resource.$id";
1498: my $is_anon;
1499: if (defined($env{'form.grade_symb'})) {
1500: if (($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurvey') ||
1501: ($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurveycred')) {
1502: $is_anon = 1;
1503: }
1504: }
1505: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1506: $count++;
1507: $count_lookup{$i} = $count;
1508: my $curr_rndseed = $Apache::lonhomework::history{"$prefix.rndseed"};
1509:
1510: my ($previousmsg,$latemessage,$message,$trystr);
1511:
1512: ($previousmsg,$latemessage,$message,$trystr) =
1513: &get_grade_messages($id,"$prefix",$target,$status);
1514:
1515: if ($previousmsg ne '') {
1516: my ($match,$which) = &find_which_previous($i);
1517: $message=$previousmsg;
1518: my $previous = $count_lookup{$which};
1519: $message =~ s{(</td>)}{ as submission \# $previous $1};
1520: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1521: if (!(&Apache::lonhomework::hide_problem_status()
1522: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1523: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1524: ) {
1525:
1526: my $txt_correct = &mt('Correct');
1527: $message =~ s{(<td.*?>)(.*?)(</td>)}
1528: {$1 <strong>$txt_correct</strong>. $3}s;
1529: }
1530: my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1531: if ($curr_rndseed || $lastrndseed) {
1532: if ($curr_rndseed ne $lastrndseed) {
1533: $trystr .= '<br /><span style="color: green; white-space: nowrap; font-style: italic; font-weight: bold; font-size: 80%;">'.&mt('New problem variation this try.').'</span>';
1534: }
1535: }
1536: $message =~ s{(</td>)}{ $trystr $1};
1537: }
1538: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1539: $message =~ s{(<td.*?>)}{<td>};
1540:
1541:
1542: $output.='<tr class="'.$class.'">';
1543: $output.='<td align="center">'.$count.'</td>';
1544: $output.=$message;
1545:
1546: foreach my $resid (@Apache::inputtags::response) {
1547: my $prefix = $prefix.".$resid";
1548: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1549: my $submission =
1550: $Apache::inputtags::submission_display{"$prefix.submission"};
1551: if (!defined($submission)) {
1552: $submission =
1553: $Apache::lonhomework::history{"$prefix.submission"};
1554: }
1555: if ($is_anon) {
1556: $output.='<td>'.&mt('(only shown to submitter)').'</td>';
1557: } else {
1558: $output.='<td>'.$submission.'</td>';
1559: }
1560: } else {
1561: $output.='<td></td>';
1562: }
1563: }
1564: $output.=&Apache::loncommon::end_data_table_row()."\n";
1565: $lastrndseed = $curr_rndseed;
1566: }
1567: return if ($output eq '');
1568: my $headers =
1569: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1570: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1571: &mt('Submitted Answer').'</th>';
1572: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1573: #return $output;
1574: $output = &Apache::loncommon::js_ready($output);
1575: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1576:
1577: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1578: my $tries_text = &get_tries_text('link');
1579: my $start_page =
1580: &Apache::loncommon::start_page($tries_text, undef,
1581: {'only_body' => 1,
1582: 'bgcolor' => '#FFFFFF',
1583: 'js_ready' => 1,
1584: 'inherit_jsmath' => 1, });
1585: my $end_page =
1586: &Apache::loncommon::end_page({'js_ready' => 1,});
1587: my $prefix = $env{'form.request.prefix'};
1588: $prefix =~ tr{.}{_};
1589: my $function_name = "LONCAPA_previous_tries_".$prefix.
1590: $Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1591: my $result ="<script type=\"text/javascript\">
1592: // <![CDATA[
1593: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1594: // ]]>
1595: </script><a href=\"javascript:$function_name();void(0);\">".&mt($tries_text)."</a><br />";
1596: #use Data::Dumper;
1597: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1598: return $result;
1599: }
1600:
1601: sub get_tries_text {
1602: my ($context) = @_;
1603: my $tries_text;
1604: if ($context eq 'link') {
1605: $tries_text = 'Previous Tries';
1606: } else {
1607: $tries_text = 'Tries';
1608: }
1609: if ( $Apache::lonhomework::type eq 'survey' ||
1610: $Apache::lonhomework::type eq 'surveycred' ||
1611: $Apache::lonhomework::type eq 'anonsurvey' ||
1612: $Apache::lonhomework::type eq 'anonsurveycred' ||
1613: $Apache::lonhomework::parsing_a_task) {
1614: if ($context eq 'link') {
1615: $tries_text = 'Previous Submissions';
1616: } else {
1617: $tries_text = 'Submissions';
1618: }
1619: }
1620: return $tries_text;
1621: }
1622:
1623: 1;
1624: __END__
1625:
1626: =pod
1627:
1628: =back
1629:
1630: =cut
1631:
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