1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.285 2011/03/07 22:38:09 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28: =pod
29:
30: =head1 NAME
31:
32: Apache::inputtags
33:
34: =head1 SYNOPSIS
35:
36:
37:
38: This is part of the LearningOnline Network with CAPA project
39: described at http://www.lon-capa.org.
40:
41:
42: =head1 NOTABLE SUBROUTINES
43:
44: =over
45:
46: =item
47:
48: =back
49:
50: =cut
51:
52: package Apache::inputtags;
53: use HTML::Entities();
54: use strict;
55: use Apache::loncommon;
56: use Apache::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: if (ref($oldresponse) eq 'ARRAY') {
358: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
359: }
360: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
361: $oldresponse =~ s/^\s+//;
362: $oldresponse =~ s/\s+$//;
363: $oldresponse =~ s/\s+/ /g;
364: }
365: if ($Apache::lonhomework::type ne 'exam') {
366: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
367: $result='';
368: if ($addchars) {
369: $result.=&addchars('HWVAL_'.$id,$addchars);
370: }
371: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
372: $safeeval);
373: if (lc($readonly) eq 'yes'
374: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
375: $readonly=' readonly="readonly" ';
376: } else {
377: $readonly='';
378: }
379: my $name = 'HWVAL_'.$id;
380: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
381: $name = "none";
382: }
383: $result.= '<input onkeydown="javascript:setSubmittedPart(\''.$partid.'\');" type="text" '.$readonly.' name="'.$name.'" value="'.
384: $oldresponse.'" size="'.$size.'"'.$maxlength.' />';
385: }
386: if ($Apache::lonhomework::type eq 'exam'
387: && &needs_exam_box($tagstack)) {
388: $result.=&exam_box($target);
389: }
390: } else {
391: #right or wrong don't show what was last typed in.
392: my $count = scalar(@Apache::inputtags::inputlist)-1;
393: $result='<b>'.$Apache::inputtags::answertxt{$id}[$count].'</b>';
394: #$result='';
395: }
396: } elsif ($target eq 'edit') {
397: $result=&Apache::edit::tag_start($target,$token);
398: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
399: &Apache::edit::text_arg('Click-On Texts (comma sep):',
400: 'addchars',$token,10);
401: $result.=&Apache::edit::select_arg('Readonly:','readonly',
402: ['no','yes'],$token);
403: $result.=&Apache::edit::end_row();
404: $result.=&Apache::edit::end_table();
405: } elsif ($target eq 'modified') {
406: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
407: $safeeval,'size',
408: 'addchars','readonly');
409: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
410: } elsif ($target eq 'tex'
411: && $Apache::lonhomework::type ne 'exam') {
412: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
413: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
414: if ($env{'form.pdfFormFields'} eq 'yes'
415: && $Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
416: my $fieldname = $env{'request.symb'}.
417: '&part_'. $Apache::inputtags::part.
418: '&textresponse'.
419: '&HWVAL_' . $Apache::inputtags::response['-1'];
420: $result='\textField{'.$fieldname.'}{'.$size.'}{12 bp}';
421: } else {
422: $result='\framebox['.$size.'][s]{\tiny\strut}';
423: }
424: } elsif ($target eq 'tex'
425: && $Apache::lonhomework::type eq 'exam'
426: && &needs_exam_box($tagstack)) {
427: $result.=&exam_box($target);
428: }
429: return $result;
430: }
431:
432: sub end_textline {
433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
434: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
435: elsif ($target eq 'edit') { return ('','no'); }
436: &end_input();
437: return "";
438: }
439:
440: sub start_hiddenline {
441: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
442: my $result = "";
443: my $input_id = &start_input($parstack,$safeeval);
444: if ($target eq 'web') {
445: $Apache::lonxml::evaluate--;
446: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
447: my $partid=$Apache::inputtags::part;
448: my $id=$Apache::inputtags::response[-1];
449: my $oldresponse = $Apache::lonhomework::history{"resource.$partid.$id.submission"};
450: if (ref($oldresponse) eq 'ARRAY') {
451: $oldresponse = $oldresponse->[$#Apache::inputtags::inputlist];
452: }
453: $oldresponse = &HTML::Entities::encode($oldresponse,'<>&"');
454:
455: if ($Apache::lonhomework::type ne 'exam') {
456: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
457: $oldresponse.'" />';
458: }
459: }
460: } elsif ($target eq 'edit') {
461: $result=&Apache::edit::tag_start($target,$token);
462: $result.=&Apache::edit::end_table;
463: }
464:
465: if ( ($target eq 'web' || $target eq 'tex')
466: && $Apache::lonhomework::type eq 'exam'
467: && &needs_exam_box($tagstack)) {
468: $result.=&exam_box($target);
469: }
470: return $result;
471: }
472:
473: sub end_hiddenline {
474: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
475: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
476: elsif ($target eq 'edit') { return ('','no'); }
477: &end_input();
478: return "";
479: }
480:
481: =pod
482:
483: =item file_selector()
484:
485: $part -> partid
486: $id -> responseid
487: $uploadefiletypes -> comma seperated list of extensions allowed or * for any
488: $which -> 'uploadonly' -> only newly uploaded files
489: 'portfolioonly' -> only allow files from portfolio
490: 'both' -> allow files from either location
491: $extratext -> additional text to go between the link and the input box
492: $maxfilesize -> maximum cumulative filesize for submitted files (in MB).
493: returns a table row <tr>
494:
495: =cut
496:
497: sub file_selector {
498: my ($part,$id,$uploadedfiletypes,$which,$extratext,$maxfilesize)=@_;
499: if (!$uploadedfiletypes) { return ''; }
500:
501: my $jspart=$part;
502: $jspart=~s/\./_/g;
503:
504: my $result;
505: my $current_files_display = ¤t_file_submissions($part,$id);
506: my $addfiles;
507: if ($current_files_display) {
508: $result .= &Apache::lonhtmlcommon::row_title(&mt('Currently submitted files')).
509: $current_files_display.
510: &Apache::lonhtmlcommon::row_closure();
511: $addfiles = &mt('Submit other file(s)');
512: } else {
513: $addfiles = &mt('Choose file(s) to submit');
514: }
515: $result .= &Apache::lonhtmlcommon::row_title($addfiles);
516: my $constraints;
517: if ($uploadedfiletypes ne '*') {
518: $constraints =
519: &mt('Allowed filetypes: [_1]','<b>'.$uploadedfiletypes.'</b>').'<br />';
520: }
521: if ($maxfilesize) {
522: $constraints .= &mt('Combined size of all files not to exceed: [_1] MB[_2].',
523: '<b>'.$maxfilesize.'</b>').'<br />';
524: }
525: if ($constraints) {
526: $result .= $constraints.'<br />';
527: }
528: if ($which eq 'uploadonly' || $which eq 'both') {
529: $result.=&mt('Submit a file: (only one file per submission)').
530: ' <br /><input type="file" size="50" name="HWFILE'.
531: $jspart.'_'.$id.'" /><br />';
532: }
533: if ( $which eq 'both') {
534: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
535: }
536: if ($which eq 'portfolioonly' || $which eq 'both') {
537: $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"))'."'".'>'.
538: &mt('Select Portfolio Files: (one or more files per submission)').'</a><br />'.
539: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
540: '<br />';
541:
542: }
543: $result.=&Apache::lonhtmlcommon::row_closure(1);
544: return $result;
545: }
546:
547: sub current_file_submissions {
548: my ($part,$id) = @_;
549: my $jspart=$part;
550: $jspart=~s/\./_/g;
551: my $uploadedfile=$Apache::lonhomework::history{"resource.$part.$id.uploadedfile"};
552: my $portfiles=$Apache::lonhomework::history{"resource.$part.$id.portfiles"};
553: return if (($uploadedfile eq '') && ($portfiles !~/[^\s]/));
554: my $header = &Apache::loncommon::start_data_table().
555: &Apache::loncommon::start_data_table_header_row();
556: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
557: $header .= '<th>'.&mt('Delete?').'</th>';
558: }
559: $header .= '<th>'.&mt('File').'</th>'.
560: '<th>'.&mt('Size (MB)').'</th>'.
561: '<th>'.&mt('Last Modified').'</th>'.
562: &Apache::loncommon::end_data_table_header_row();
563: my (undef,$crsid,$udom,$uname)=&Apache::lonnet::whichuser();
564: my ($cdom,$cnum) = ($crsid =~ /^($LONCAPA::match_domain)_($LONCAPA::match_courseid)$/);
565: my ($result,$header_shown,%okfiles,%rows,%legacy,@bad_file_list);
566: if ($uploadedfile) {
567: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
568: my $link = &HTML::Entities::encode($url,'<>&"');
569: my ($path,$name) = ($url =~ m{^(/uploaded/\Q$udom\E/\Q$uname\E/essayresponse.*/)([^/]+)$});
570: my ($status,$hashref,$error) =
571: ¤t_file_info($url,$link,$name,$path);
572: if ($status eq 'ok') {
573: push(@{$okfiles{$name}},$url);
574: $rows{$url} = $hashref;
575: $legacy{$url} = 1;
576: &Apache::lonxml::extlink($url);
577: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
578: } else {
579: push(@bad_file_list,$error);
580: }
581: }
582: if ($portfiles =~ /[^\s]/) {
583: my $prefix = "/uploaded/$udom/$uname/portfolio";
584: foreach my $file (split(/\s*,\s*/,&unescape($portfiles))) {
585: my ($path,$name) = ($file =~ m{^(.*/)([^/]+)$});
586: my $url = $prefix.$path.$name;
587: my $uploadedfile = &HTML::Entities::encode($url,'<>&"');
588: my ($status,$hashref,$error) =
589: ¤t_file_info($url,$uploadedfile,$name,$path);
590: if ($status eq 'ok') {
591: push(@{$okfiles{$name}},$url);
592: $rows{$url} = $hashref;
593: } else {
594: push(@bad_file_list,$error);
595: }
596: }
597: }
598: my $num = 0;
599: foreach my $name (sort(keys(%okfiles))) {
600: if (ref($okfiles{$name}) eq 'ARRAY') {
601: foreach my $url (@{$okfiles{$name}}) {
602: if (ref($rows{$url}) eq 'HASH') {
603: my $link = $rows{$url}{link};
604: my $portfile = $rows{$url}{path}.$rows{$url}{name};
605: $portfile = &HTML::Entities::encode($portfile,'<>&"');
606: if ($link) {
607: my $icon=&Apache::loncommon::icon($url);
608: unless ($header_shown) {
609: $result .= $header;
610: $header_shown = 1;
611: }
612: $result.=
613: &Apache::loncommon::start_data_table_row()."\n";
614: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
615: $result .=
616: '<td valign="bottom"><input type="checkbox" name="HWFILE'.$jspart.'_'.$id.'_delete"'.
617: ' value="'.$portfile.'" id="HWFILE'.$jspart.'_'.$id.'_'.$num.'_delete" /></td>'."\n";
618: $num ++;
619: }
620: my $showname = $rows{$url}{path}.$name;
621: if ($legacy{$url}) {
622: $showname = $name.' '.&mt('not in portfolio');
623: }
624: $result .=
625: '<td><a href="'.$link.'"><img src="'.$icon.
626: '" border="0" alt="" />'.$showname.'</a></td>'."\n".
627: '<td align="right" valign="bottom">'.$rows{$url}{size}.'</td>'."\n".
628: '<td align="right" valign="bottom">'.$rows{$url}{lastmodified}.'</td>'."\n".
629: &Apache::loncommon::end_data_table_row();
630: }
631: }
632: }
633: }
634: }
635: if ($header_shown) {
636: $result .= &Apache::loncommon::end_data_table().
637: '<br /><span class="LC_warning">'.
638: &mt('Exclude existing file(s) from grading by checking the "Delete?" checkbox(es) and clicking "Submit Answer"').'</span>';
639: }
640: if (@bad_file_list) {
641: my $bad_files = '<span class="LC_filename">'.
642: join('</span>, <span class="LC_filename">',@bad_file_list).
643: '</span>';
644: $result.='<p class="LC_error">'.
645: &mt("These file(s) don't exist: [_1]",$bad_files).
646: '</p>';
647: }
648: return $result;
649: }
650:
651: sub current_file_info {
652: my ($url,$uploadedfile,$name,$path) = @_;
653: my ($status,$error,%info);
654: my @stat = &Apache::lonnet::stat_file($url);
655: if ((@stat) && ($stat[0] ne 'no_such_dir')) {
656: my ($lastmod,$size);
657: if ($stat[9] =~ /^\d+$/) {
658: $lastmod = &Apache::lonlocal::locallocaltime($stat[9]);
659: }
660: $size = $stat[7]/(1024*1024);
661: $size = sprintf("%.3f",$size);
662: %info = (
663: link => $uploadedfile,
664: name => $name,
665: path => $path,
666: size => $size,
667: lastmodified => $lastmod,
668: );
669: $status = 'ok';
670: } else {
671: &Apache::lonnet::logthis("bad file is $url");
672: my $icon=&Apache::loncommon::icon($url);
673: $error = '<a href="'.$url.'"><img src="'.$icon.
674: '" border="0" />'.$uploadedfile.'</a>';
675: }
676: return ($status,\%info,$error);
677: }
678:
679: sub valid_award {
680: my ($award) =@_;
681: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
682: 'NO_RESPONSE',
683: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
684: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
685: 'UNIT_FAIL', 'NO_UNIT',
686: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
687: 'BAD_FORMULA', 'NOT_FUNCTION', 'WRONG_FORMAT',
688: 'INTERNAL_ERROR', 'SIG_FAIL', 'INCORRECT',
689: 'MISORDERED_RANK', 'INVALID_FILETYPE',
690: 'EXCESS_FILESIZE', 'FILENAME_INUSE',
691: 'DRAFT', 'SUBMITTED', 'SUBMITTED_CREDIT',
692: 'ANONYMOUS', 'ANONYMOUS_CREDIT',
693: 'ASSIGNED_SCORE', 'APPROX_ANS',
694: 'EXACT_ANS','COMMA_FAIL') {
695: if ($award eq $possibleaward) { return 1; }
696: }
697: return 0;
698: }
699:
700: {
701: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
702: 'TOO_LONG',
703: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
704: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
705: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA', 'NOT_FUNCTION',
706: 'WRONG_FORMAT', 'INTERNAL_ERROR',
707: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
708: 'INVALID_FILETYPE', 'EXCESS_FILESIZE', 'FILENAME_INUSE',
709: 'DRAFT', 'SUBMITTED',
710: 'SUBMITTED_CREDIT', 'ANONYMOUS', 'ANONYMOUS_CREDIT',
711: 'ASSIGNED_SCORE', 'APPROX_ANS', 'EXACT_ANS');
712: my $i=0;
713: my %fwd_awards = map { ($_,$i++) } @awards;
714: my $max=scalar(@awards);
715: @awards=reverse(@awards);
716: $i=0;
717: my %rev_awards = map { ($_,$i++) } @awards;
718:
719: sub awarddetail_to_awarded {
720: my ($awarddetail) = @_;
721: if ($awarddetail eq 'EXACT_ANS'
722: || $awarddetail eq 'APPROX_ANS') {
723: return 1;
724: }
725: return 0;
726: }
727:
728: sub hide_award {
729: my ($award) = @_;
730: if (&Apache::lonhomework::show_no_problem_status()) {
731: return 1;
732: }
733: if ($award =~
734: /^(?:EXACT_ANS|APPROX_ANS|SUBMITTED|SUBMITTED_CREDIT|ANONYMOUS|ANONYMOUS_CREDIT|ASSIGNED_SCORE|INCORRECT)/) {
735: return 1;
736: }
737: return 0;
738: }
739:
740: sub finalizeawards {
741: my ($awardref,$msgref,$nameref,$reverse,$final_scantron)=@_;
742: my $result;
743: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
744: if ($result eq '' ) {
745: my $blankcount;
746: foreach my $award (@$awardref) {
747: if ($award eq '') {
748: $result='MISSING_ANSWER';
749: $blankcount++;
750: }
751: }
752: if ($blankcount == ($#$awardref + 1)) {
753: return ('NO_RESPONSE');
754: }
755: }
756:
757: if ($Apache::lonxml::internal_error) { $result='INTERNAL_ERROR'; }
758:
759: if (!$final_scantron && defined($result)) { return ($result); }
760:
761: # if in scantron mode, if the award for any response is
762: # assigned score, then the part gets an assigned score
763: if ($final_scantron
764: && grep {$_ eq 'ASSIGNED_SCORE'} (@$awardref)) {
765: return ('ASSIGNED_SCORE');
766: }
767:
768: # if in scantron mode, if the award for any response is
769: # correct and there are non-correct responses,
770: # then the part gets an assigned score
771: if ($final_scantron
772: && (grep { $_ eq 'EXACT_ANS' ||
773: $_ eq 'APPROX_ANS' } (@$awardref))
774: && (grep { $_ ne 'EXACT_ANS' &&
775: $_ ne 'APPROX_ANS' } (@$awardref))) {
776: return ('ASSIGNED_SCORE');
777: }
778: # these awards are ordered from most important error through best correct
779: my $awards = (!$reverse) ? \%fwd_awards : \%rev_awards ;
780:
781: my $best = $max;
782: my $j=0;
783: my $which;
784: foreach my $award (@$awardref) {
785: if ($awards->{$award} < $best) {
786: $best = $awards->{$award};
787: $which = $j;
788: }
789: $j++;
790: }
791:
792: if (defined($which)) {
793: if (ref($nameref)) {
794: return ($$awardref[$which],$$msgref[$which],$$nameref[$which]);
795: } else {
796: return ($$awardref[$which],$$msgref[$which]);
797: }
798: }
799: return ('ERROR',undef);
800: }
801: }
802:
803: sub decideoutput {
804: my ($award,$awarded,$awardmsg,$solved,$previous,$target,$nocorrect)=@_;
805:
806: my $message='';
807: my $button=0;
808: my $previousmsg;
809: my $css_class='orange';
810: my $added_computer_text=0;
811: my %possible_class =
812: ( 'correct' => 'LC_answer_correct',
813: 'charged_try' => 'LC_answer_charged_try',
814: 'not_charged_try' => 'LC_answer_not_charged_try',
815: 'no_grade' => 'LC_answer_no_grade',
816: 'no_message' => 'LC_no_message',
817: );
818:
819: my $part = $Apache::inputtags::part;
820: my $tohandgrade = &Apache::lonnet::EXT("resource.$part.handgrade");
821: my $handgrade = ('yes' eq lc($tohandgrade));
822: #
823: # Should "Computer's Answer" be displayed?
824: # Should not be displayed if still answerable,
825: # if the problem is handgraded,
826: # or if the problem does not give a correct answer
827: #
828:
829: my $computer = ($handgrade || $nocorrect)? ''
830: : " ".&mt("Computer's answer now shown above.");
831: &Apache::lonxml::debug("handgrade has :$handgrade:");
832:
833: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
834:
835: if ($solved =~ /^correct/) {
836: $css_class=$possible_class{'correct'};
837: $message=&mt('You are correct.');
838: if ($awarded < 1 && $awarded > 0) {
839: $message=&mt('You are partially correct.');
840: $css_class=$possible_class{'not_charged_try'};
841: } elsif ($awarded < 1) {
842: $message=&mt('Incorrect.');
843: $css_class=$possible_class{'charged_try'};
844: }
845: if ($env{'request.filename'} =~
846: m|/res/lib/templates/examupload.problem$|) {
847: $message = &mt("A score has been assigned.");
848: $added_computer_text=1;
849: } else {
850: if ($target eq 'tex') {
851: $message = '\textbf{'.$message.'}';
852: } else {
853: $message = "<b>".$message."</b>";
854: $message.= $computer;
855: }
856: $added_computer_text=1;
857: if ($awarded > 0) {
858: my ($symb) = &Apache::lonnet::whichuser();
859: if (($symb ne '')
860: &&
861: ($env{'course.'.$env{'request.course.id'}.
862: '.disable_receipt_display'} ne 'yes') &&
863: ($Apache::lonhomework::type ne 'practice')) {
864: $message.=(($target eq 'web')?'<br />':' ').
865: &mt('Your receipt no. is [_1]',
866: (&Apache::lonnet::receipt($Apache::inputtags::part).
867: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
868: }
869: }
870: }
871: if ($awarded==1) { $button=0; } else { $button=1; }
872: $previousmsg='';
873: } elsif ($solved =~ /^excused/) {
874: if ($target eq 'tex') {
875: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
876: } else {
877: $message = "<b>".&mt('You are excused from the problem.')."</b>";
878: }
879: $css_class=$possible_class{'charged_try'};
880: $button=0;
881: $previousmsg='';
882: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
883: if ($solved =~ /^incorrect/ || $solved eq '') {
884: $message = &mt("Incorrect").".";
885: $css_class=$possible_class{'charged_try'};
886: $button=1;
887: } else {
888: if ($target eq 'tex') {
889: $message = '\textbf{'.&mt('You are correct.').'}';
890: } else {
891: $message = "<b>".&mt('You are correct.')."</b>";
892: $message.= $computer;
893: }
894: $added_computer_text=1;
895: if ($awarded > 0
896: && $env{'course.'.
897: $env{'request.course.id'}.
898: '.disable_receipt_display'} ne 'yes') {
899: $message.=(($target eq 'web')?'<br />':' ').
900: &mt('Your receipt is [_1]',
901: (&Apache::lonnet::receipt($Apache::inputtags::part).
902: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'')));
903: }
904: $css_class=$possible_class{'correct'};
905: $button=0;
906: $previousmsg='';
907: }
908: } elsif ($award eq 'NO_RESPONSE') {
909: $message = '';
910: $css_class=$possible_class{'no_feedback'};
911: $button=1;
912: } elsif ($award eq 'EXTRA_ANSWER') {
913: $message = &mt('Some extra items were submitted.');
914: $css_class=$possible_class{'not_charged_try'};
915: $button = 1;
916: } elsif ($award eq 'MISSING_ANSWER') {
917: $message = &mt('Some items were not submitted.');
918: if ($target ne 'tex') {
919: $message .= &Apache::loncommon::help_open_topic('Some_Items_Were_Not_Submitted');
920: }
921: $css_class=$possible_class{'not_charged_try'};
922: $button = 1;
923: } elsif ($award eq 'ERROR') {
924: $message = &mt('An error occurred while grading your answer.');
925: $css_class=$possible_class{'not_charged_try'};
926: $button = 1;
927: } elsif ($award eq 'TOO_LONG') {
928: $message = &mt("The submitted answer was too long.");
929: $css_class=$possible_class{'not_charged_try'};
930: $button=1;
931: } elsif ($award eq 'WANTED_NUMERIC') {
932: $message = &mt("This question expects a numeric answer.");
933: $css_class=$possible_class{'not_charged_try'};
934: $button=1;
935: } elsif ($award eq 'MISORDERED_RANK') {
936: $message = &mt('You have provided an invalid ranking.');
937: if ($target ne 'tex') {
938: $message.=' '.&mt('Please refer to [_1]',&Apache::loncommon::help_open_topic('Ranking_Problems',&mt('help on ranking problems')));
939: }
940: $css_class=$possible_class{'not_charged_try'};
941: $button=1;
942: } elsif ($award eq 'EXCESS_FILESIZE') {
943: $message = &mt('Submission won\'t be graded. The combined size of submitted files exceeded the amount allowed.');
944: $css_class=$possible_class{'not_charged_try'};
945: $button=1;
946: } elsif ($award eq 'FILENAME_INUSE') {
947: $message = &mt('You have already uploaded a file with that filename.');
948: if ($target eq 'tex') {
949: $message.= "\\\\\n";
950: } else {
951: $message .= '<br />';
952: }
953: $message .= &mt('Please use a different file name.');
954: $css_class=$possible_class{'not_charged_try'};
955: $button=1;
956: } elsif ($award eq 'INVALID_FILETYPE') {
957: $message = &mt("Submission won't be graded. The type of file submitted is not allowed.");
958: $css_class=$possible_class{'not_charged_try'};
959: $button=1;
960: } elsif ($award eq 'SIG_FAIL') {
961: my ($used,$min,$max)=split(':',$awardmsg);
962: my $word = ($used < $min) ? 'more' : 'fewer';
963: $message = &mt("Submission not graded. Use $word digits.",$used);
964: $css_class=$possible_class{'not_charged_try'};
965: $button=1;
966: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
967: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
968: if ($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_INVALID_STUDENT') {
972: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($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_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
977: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
978: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
979: $css_class=$possible_class{'not_charged_try'};
980: $button=1;
981: } elsif ($award eq 'UNIT_NOTNEEDED') {
982: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
983: $css_class=$possible_class{'not_charged_try'};
984: $button=1;
985: } elsif ($award eq 'NO_UNIT') {
986: $message = &mt("Units required").'.';
987: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
988: $css_class=$possible_class{'not_charged_try'};
989: $button=1;
990: } elsif ($award eq 'COMMA_FAIL') {
991: $message = &mt("Proper comma separation is required").'.';
992: $css_class=$possible_class{'not_charged_try'};
993: $button=1;
994: } elsif ($award eq 'BAD_FORMULA') {
995: $message = &mt("Unable to understand formula").'.';
996: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Formula_Answers')};
997: $css_class=$possible_class{'not_charged_try'};
998: $button=1;
999: } elsif ($award eq 'NOT_FUNCTION') {
1000: $message = &mt("Not a function").'.';
1001: $css_class=$possible_class{'not_charged_try'};
1002: $button=1;
1003: } elsif ($award eq 'WRONG_FORMAT') {
1004: $message = &mt("Wrong format").'.';
1005: $css_class=$possible_class{'not_charged_try'};
1006: $button=1;
1007: } elsif ($award eq 'INTERNAL_ERROR') {
1008: $message = &mt("An internal error occurred while processing your answer. Please try again later.");
1009: $css_class=$possible_class{'not_charged_try'};
1010: $button=1;
1011: } elsif ($award eq 'INCORRECT') {
1012: $message = &mt("Incorrect").'.';
1013: $css_class=$possible_class{'charged_try'};
1014: $button=1;
1015: } elsif ($award eq 'SUBMITTED') {
1016: $message = &mt("Your submission has been recorded.");
1017: $css_class=$possible_class{'no_grade'};
1018: $button=1;
1019: } elsif ($award eq 'SUBMITTED_CREDIT') {
1020: $message = &mt("Your submission has been recorded, and credit awarded.");
1021: $css_class=$possible_class{'correct'};
1022: $button=1;
1023: } elsif ($award eq 'ANONYMOUS') {
1024: $message = &mt("Your anonymous submission has been recorded.");
1025: $css_class=$possible_class{'no_grade'};
1026: $button=1;
1027: } elsif ($award eq 'ANONYMOUS_CREDIT') {
1028: $message = &mt("Your anonymous submission has been recorded, and credit awarded.");
1029: $css_class=$possible_class{'correct'};
1030: } elsif ($award eq 'DRAFT') {
1031: $message = &mt("Copy saved but not submitted.");
1032: $css_class=$possible_class{'not_charged_try'};
1033: $button=1;
1034: } elsif ($award eq 'ASSIGNED_SCORE') {
1035: $message = &mt("A score has been assigned.");
1036: $css_class=$possible_class{'correct'};
1037: $button=0;
1038: } elsif ($award eq '') {
1039: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
1040: $message = &mt("Nothing submitted.");
1041: $css_class=$possible_class{'charged_try'};
1042: } else {
1043: $css_class=$possible_class{'not_charged_try'};
1044: }
1045: $button=1;
1046: } else {
1047: $message = &mt("Unknown message").": $award";
1048: $button=1;
1049: }
1050: my (undef,undef,$domain,$user)=&Apache::lonnet::whichuser();
1051: foreach my $resid(@Apache::inputtags::response){
1052: if ($Apache::lonhomework::history{"resource.$part.$resid.handback"}) {
1053: if ($target eq 'tex') {
1054: $message.= "\\\\\n";
1055: } else {
1056: $message.='<br />';
1057: }
1058: my @files = split(/\s*,\s*/,
1059: $Apache::lonhomework::history{"resource.$part.$resid.handback"});
1060: my $file_msg;
1061: foreach my $file (@files) {
1062: if ($target eq 'tex') {
1063: $file_msg.= "\\\\\n".$file;
1064: } else {
1065: $file_msg.= '<br /><a href="/uploaded/'."$domain/$user".'/'.$file.'">'.$file.'</a>';
1066: }
1067: }
1068: $message .= &mt('Returned file(s): [_1]',$file_msg);
1069: if ($target eq 'tex') {
1070: $message.= "\\\\\n";
1071: } else {
1072: $message.='<br />';
1073: }
1074: }
1075: }
1076:
1077: if (&Apache::lonhomework::hide_problem_status()
1078: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER'
1079: && &hide_award($award)) {
1080: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
1081: $css_class=$possible_class{'no_grade'};
1082: $button=1;
1083: }
1084: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
1085: !$added_computer_text && $target ne 'tex') {
1086: $message.= $computer;
1087: $added_computer_text=1;
1088: }
1089: if ($Apache::lonhomework::type eq 'practice') {
1090: if ($target eq 'web') {
1091: $message .= '<br />';
1092: } else {
1093: $message .= ' ';
1094: }
1095: $message.=&mt('Submissions to practice problems are not permanently recorded.');
1096: }
1097: return ($button,$css_class,$message,$previousmsg);
1098: }
1099:
1100: sub markup_unit {
1101: my ($unit,$target)=@_;
1102: if ($target eq 'tex') {
1103: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
1104: } else {
1105: return "<tt>".$unit."</tt>";
1106: }
1107: }
1108:
1109: sub removealldata {
1110: my ($id)=@_;
1111: foreach my $key (keys(%Apache::lonhomework::results)) {
1112: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
1113: &Apache::lonxml::debug("Removing $key");
1114: delete($Apache::lonhomework::results{$key});
1115: }
1116: }
1117: }
1118:
1119: sub hidealldata {
1120: my ($id)=@_;
1121: foreach my $key (keys(%Apache::lonhomework::results)) {
1122: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
1123: &Apache::lonxml::debug("Hidding $key");
1124: my $newkey=$key;
1125: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
1126: $Apache::lonhomework::results{$newkey}=
1127: $Apache::lonhomework::results{$key};
1128: delete($Apache::lonhomework::results{$key});
1129: }
1130: }
1131: }
1132:
1133: sub setgradedata {
1134: my ($award,$msg,$id,$previously_used) = @_;
1135: if ($Apache::lonhomework::scantronmode &&
1136: &Apache::lonnet::validCODE($env{'form.CODE'})) {
1137: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
1138: } elsif ($Apache::lonhomework::scantronmode &&
1139: $env{'form.CODE'} eq '' &&
1140: $Apache::lonhomework::history{"resource.CODE"} ne '') {
1141: $Apache::lonhomework::results{"resource.CODE"}='';
1142: }
1143:
1144: if (!$Apache::lonhomework::scantronmode &&
1145: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1146: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1147: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
1148: return '';
1149: } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} < 1
1150: || $Apache::lonhomework::scantronmode
1151: || &Apache::lonhomework::hide_problem_status() ) {
1152: # the student doesn't already have it correct,
1153: # or we are in a mode (scantron orno problem status) where a correct
1154: # can become incorrect
1155: # handle assignment of tries and solved status
1156: my $solvemsg;
1157: if ($Apache::lonhomework::scantronmode) {
1158: $solvemsg='correct_by_scantron';
1159: } else {
1160: $solvemsg='correct_by_student';
1161: }
1162: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
1163: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
1164: }
1165: if ( $award eq 'ASSIGNED_SCORE') {
1166: $Apache::lonhomework::results{"resource.$id.tries"} =
1167: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1168: $Apache::lonhomework::results{"resource.$id.solved"} =
1169: $solvemsg;
1170: my $numawards=scalar(@Apache::inputtags::response);
1171: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1172: foreach my $res (@Apache::inputtags::response) {
1173: if (defined($Apache::lonhomework::results{"resource.$id.$res.awarded"})) {
1174: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1175: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
1176: } else {
1177: $Apache::lonhomework::results{"resource.$id.awarded"}+=
1178: &awarddetail_to_awarded($Apache::lonhomework::results{"resource.$id.$res.awarddetail"});
1179: }
1180: }
1181: if ($numawards > 0) {
1182: $Apache::lonhomework::results{"resource.$id.awarded"}/=
1183: $numawards;
1184: }
1185: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
1186: $Apache::lonhomework::results{"resource.$id.tries"} =
1187: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1188: $Apache::lonhomework::results{"resource.$id.solved"} =
1189: $solvemsg;
1190: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1191: } elsif ( $award eq 'SUBMITTED_CREDIT' ) {
1192: $Apache::lonhomework::results{"resource.$id.tries"} =
1193: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1194: $Apache::lonhomework::results{"resource.$id.solved"} =
1195: 'credit_attempted';
1196: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1197: } elsif ( $award eq 'ANONYMOUS_CREDIT' ) {
1198: $Apache::lonhomework::results{"resource.$id.tries"} =
1199: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1200: $Apache::lonhomework::results{"resource.$id.solved"} =
1201: 'credit_attempted';
1202: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
1203: } elsif ( $award eq 'INCORRECT' ) {
1204: $Apache::lonhomework::results{"resource.$id.tries"} =
1205: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1206: if (&Apache::lonhomework::hide_problem_status()
1207: || $Apache::lonhomework::scantronmode) {
1208: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1209: }
1210: $Apache::lonhomework::results{"resource.$id.solved"} =
1211: 'incorrect_attempted';
1212: } elsif ( $award eq 'SUBMITTED' ) {
1213: $Apache::lonhomework::results{"resource.$id.tries"} =
1214: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1215: $Apache::lonhomework::results{"resource.$id.solved"} =
1216: 'ungraded_attempted';
1217: } elsif ( $award eq 'ANONYMOUS' ) {
1218: $Apache::lonhomework::results{"resource.$id.tries"} =
1219: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1220: $Apache::lonhomework::results{"resource.$id.solved"} =
1221: 'ungraded_attempted';
1222: } elsif ( $award eq 'DRAFT' ) {
1223: $Apache::lonhomework::results{"resource.$id.solved"} = '';
1224: } elsif ( $award eq 'NO_RESPONSE' ) {
1225: #no real response so delete any data that got stored
1226: &removealldata($id);
1227: return '';
1228: } else {
1229: $Apache::lonhomework::results{"resource.$id.solved"} =
1230: 'incorrect_attempted';
1231: if (&Apache::lonhomework::show_no_problem_status()
1232: || $Apache::lonhomework::scantronmode) {
1233: $Apache::lonhomework::results{"resource.$id.tries"} =
1234: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
1235: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
1236: }
1237:
1238: if (&Apache::lonhomework::show_some_problem_status()) {
1239: # clear out the awarded if they had gotten it wrong/right
1240: # and are now in an error mode
1241: $Apache::lonhomework::results{"resource.$id.awarded"} = '';
1242: }
1243: }
1244: if (defined($msg)) {
1245: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
1246: }
1247: # did either of the overall awards chage? If so ignore the
1248: # previous check
1249: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
1250: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
1251: ($Apache::lonhomework::results{"resource.$id.solved"} eq
1252: $Apache::lonhomework::history{"resource.$id.solved"})) {
1253: # check if this was a previous submission if it was delete the
1254: # unneeded data and update the previously_used attribute
1255: if ( $previously_used eq 'PREVIOUSLY_USED') {
1256: if (&Apache::lonhomework::show_problem_status()) {
1257: delete($Apache::lonhomework::results{"resource.$id.tries"});
1258: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
1259: }
1260: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
1261: #delete all data as they student didn't do anything, but save
1262: #the list of collaborators.
1263: &removealldata($id);
1264: #and since they didn't do anything we were never here
1265: return '';
1266: } else {
1267: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
1268: }
1269: }
1270: } elsif ( $Apache::lonhomework::history{"resource.$id.awarded"} == 1 ) {
1271: #delete all data as they student already has it correct
1272: &removealldata($id);
1273: #and since they didn't do anything we were never here
1274: return '';
1275: }
1276: $Apache::lonhomework::results{"resource.$id.award"} = $award;
1277: if ($award eq 'SUBMITTED') {
1278: &Apache::response::add_to_gradingqueue();
1279: }
1280: if (($Apache::lonhomework::type eq 'anonsurvey') ||
1281: ($Apache::lonhomework::type eq 'anonsurveycred') ||
1282: ($Apache::lonhomework::type eq 'randomizetry')) {
1283: $Apache::lonhomework::results{"resource.$id.type"} = $Apache::lonhomework::type;
1284: }
1285: if ($Apache::lonhomework::type eq 'randomizetry') {
1286: $Apache::lonhomework::results{"resource.$id.rndseed"} = $env{'form.'.$id.'.rndseed'};
1287: }
1288: }
1289:
1290: sub find_which_previous {
1291: my ($version) = @_;
1292: my $part = $Apache::inputtags::part;
1293: my (@previous_version);
1294: foreach my $resp (@Apache::inputtags::response) {
1295: my $key = "$version:resource.$part.$resp.submission";
1296: my $submission = $Apache::lonhomework::history{$key};
1297: my %previous = &Apache::response::check_for_previous($submission,
1298: $part,$resp,
1299: $version);
1300: push(@previous_version,$previous{'version'});
1301: }
1302: return &previous_match(\@previous_version,
1303: scalar(@Apache::inputtags::response));
1304: }
1305:
1306: sub previous_match {
1307: my ($previous_array,$count) = @_;
1308: my $match = 0;
1309: my @matches;
1310: foreach my $versionar (@$previous_array) {
1311: foreach my $version (@$versionar) {
1312: $matches[$version]++;
1313: }
1314: }
1315: my $which=0;
1316: foreach my $elem (@matches) {
1317: if ($elem eq $count) {
1318: $match=1;
1319: last;
1320: }
1321: $which++;
1322: }
1323: return ($match,$which);
1324: }
1325:
1326: sub grade {
1327: my ($target) = @_;
1328: my $id = $Apache::inputtags::part;
1329: my $response='';
1330: if ( defined $env{'form.submitted'}) {
1331: my (@awards,@msgs);
1332: foreach $response (@Apache::inputtags::response) {
1333: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
1334: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
1335: &Apache::lonxml::debug("keeping $value from $response for $id");
1336: push (@awards,$value);
1337: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
1338: &Apache::lonxml::debug("got message $value from $response for $id");
1339: push (@msgs,$value);
1340: }
1341: my ($finalaward,$msg) =
1342: &finalizeawards(\@awards,\@msgs,undef,undef,
1343: $Apache::lonhomework::scantronmode);
1344: my $previously_used;
1345: if ( $#Apache::inputtags::previous eq $#awards ) {
1346: my ($match) =
1347: &previous_match(\@Apache::inputtags::previous_version,
1348: scalar(@Apache::inputtags::response));
1349:
1350: if ($match) {
1351: $previously_used = 'PREVIOUSLY_LAST';
1352: foreach my $value (@Apache::inputtags::previous) {
1353: if ($value eq 'PREVIOUSLY_USED' ) {
1354: $previously_used = $value;
1355: last;
1356: }
1357: }
1358: }
1359: }
1360: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
1361: &setgradedata($finalaward,$msg,$id,$previously_used);
1362: }
1363: return '';
1364: }
1365:
1366: sub get_grade_messages {
1367: my ($id,$prefix,$target,$status,$nocorrect) = @_;
1368: # nocorrect suppresses "Computer's answer now shown above"
1369: my ($message,$latemessage,$trystr,$previousmsg);
1370: my $showbutton = 1;
1371:
1372: my $award = $Apache::lonhomework::history{"$prefix.award"};
1373: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1374: my $solved = $Apache::lonhomework::history{"$prefix.solved"};
1375: my $previous = $Apache::lonhomework::history{"$prefix.previous"};
1376: my $awardmsg = $Apache::lonhomework::history{"$prefix.awardmsg"};
1377: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
1378: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
1379: &Apache::lonxml::debug('Getting message');
1380: ($showbutton,my $css_class,$message,$previousmsg) =
1381: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
1382: $target,(($status eq 'CAN_ANSWER') || $nocorrect));
1383: if ($target eq 'tex') {
1384: $message='\vskip 2 mm '.$message.' ';
1385: } else {
1386: $message="<td class=\"$css_class\">$message</td>";
1387: if ($previousmsg) {
1388: $previousmsg="<td class=\"LC_answer_previous\">$previousmsg</td>";
1389: }
1390: }
1391: }
1392: my $tries = $Apache::lonhomework::history{"$prefix.tries"};
1393: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1394: &Apache::lonxml::debug("got maxtries of :$maxtries:");
1395: #if tries are set to negative turn off the Tries/Button and messages
1396: if (defined($maxtries) && $maxtries < 0) { return ''; }
1397: if ( $tries eq '' ) { $tries = '0'; }
1398: if ( $maxtries eq '' ) { $maxtries = '2'; }
1399: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
1400: my $tries_text= &get_tries_text();;
1401: if ($showbutton) {
1402: if ($target eq 'tex') {
1403: if ($env{'request.state'} ne "construct"
1404: && $Apache::lonhomework::type ne 'exam'
1405: && $env{'form.suppress_tries'} ne 'yes') {
1406: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.
1407: $tries.'/'.$maxtries.'} \vskip 2 mm ';
1408: } else {
1409: $trystr = '\vskip 0 mm ';
1410: }
1411: } else {
1412: $trystr = '<td><span class="LC_nobreak">'.&mt($tries_text)." $tries";
1413: if ($Apache::lonhomework::parsing_a_task) {
1414: } elsif($env{'request.state'} ne 'construct') {
1415: $trystr.="/".&Apache::lonhtmlcommon::direct_parm_link($maxtries,$env{'request.symb'},'maxtries',$id,$target);
1416: } else {
1417: if (defined($Apache::inputtags::params{'maxtries'})) {
1418: $trystr.="/".$Apache::inputtags::params{'maxtries'};
1419: }
1420: }
1421: $trystr.="</span></td>";
1422: }
1423: }
1424:
1425: if ($Apache::lonhomework::history{"$prefix.afterduedate"}) {
1426: #last submissions was after due date
1427: $latemessage=&mt(' The last submission was after the Due Date ');;
1428: if ($target eq 'web') {
1429: $latemessage='<td class="LC_answer_late">'.$latemessage.'</td>';
1430: }
1431: }
1432: return ($previousmsg,$latemessage,$message,$trystr,$showbutton);
1433: }
1434:
1435: sub gradestatus {
1436: my ($id,$target,$no_previous) = @_;
1437: my $showbutton = 1;
1438: my $message = '';
1439: my $latemessage = '';
1440: my $trystr='';
1441: my $button='';
1442: my $previousmsg='';
1443:
1444: my $status = $Apache::inputtags::status['-1'];
1445: &Apache::lonxml::debug("gradestatus has :$status:");
1446: if ( $status ne 'CLOSED'
1447: && $status ne 'UNAVAILABLE'
1448: && $status ne 'INVALID_ACCESS'
1449: && $status ne 'NEEDS_CHECKIN'
1450: && $status ne 'NOT_IN_A_SLOT') {
1451:
1452: ($previousmsg,$latemessage,$message,$trystr) =
1453: &get_grade_messages($id,"resource.$id",$target,$status,
1454: $showbutton);
1455: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {
1456: $showbutton = 0;
1457: }
1458: if ( $status eq 'SHOW_ANSWER') {
1459: undef($previousmsg);
1460: }
1461: if ( $showbutton ) {
1462: if ($target ne 'tex') {
1463: $button =
1464: '<input onmouseup="javascript:setSubmittedPart(\''.$id.'\');this.form.action+=\'#'.&escape($id).'\';"
1465: type="submit" name="submit_'.$id.'"
1466: value="'.&mt('Submit Answer').'" />';
1467: }
1468: }
1469:
1470: }
1471: my $output= $previousmsg.$latemessage.$message.$trystr;
1472: if ($output =~ /^\s*$/) {
1473: return $button;
1474: } else {
1475: if ($target eq 'tex') {
1476: return $button.' \vskip 0 mm '.$output.' ';
1477: } else {
1478: $output =
1479: '<table><tr><td>'.$button.'</td>'.$output;
1480: if (!$no_previous) {
1481: $output.='<td>'.&previous_tries($id,$target).'</td>';
1482: }
1483: $output.= '</tr></table>';
1484: return $output;
1485: }
1486: }
1487: }
1488:
1489: sub previous_tries {
1490: my ($id,$target) = @_;
1491: my $output;
1492: my $status = $Apache::inputtags::status['-1'];
1493:
1494: my $count;
1495: my %count_lookup;
1496: my $lastrndseed;
1497:
1498: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1499: my $prefix = $i.":resource.$id";
1500: my $is_anon;
1501: if (defined($env{'form.grade_symb'})) {
1502: if (($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurvey') ||
1503: ($Apache::lonhomework::history{"$prefix.type"} eq 'anonsurveycred')) {
1504: $is_anon = 1;
1505: }
1506: }
1507: next if (!exists($Apache::lonhomework::history{"$prefix.award"}));
1508: $count++;
1509: $count_lookup{$i} = $count;
1510: my $curr_rndseed = $Apache::lonhomework::history{"$prefix.rndseed"};
1511: my ($previousmsg,$latemessage,$message,$trystr);
1512:
1513: ($previousmsg,$latemessage,$message,$trystr) =
1514: &get_grade_messages($id,"$prefix",$target,$status);
1515:
1516: if ($previousmsg ne '') {
1517: my ($match,$which) = &find_which_previous($i);
1518: $message=$previousmsg;
1519: my $previous = $count_lookup{$which};
1520: $message =~ s{(</td>)}{ as submission \# $previous $1};
1521: } elsif ($Apache::lonhomework::history{"$prefix.tries"}) {
1522: if (!(&Apache::lonhomework::hide_problem_status()
1523: && $Apache::inputtags::status[-1] ne 'SHOW_ANSWER')
1524: && $Apache::lonhomework::history{"$prefix.solved"} =~/^correct/
1525: ) {
1526:
1527: my $txt_correct = &mt('Correct');
1528: my $awarded = $Apache::lonhomework::history{"$prefix.awarded"};
1529: if ($awarded < 1 && $awarded > 0) {
1530: $txt_correct=&mt('Partially Correct');
1531: } elsif ($awarded < 1) {
1532: if ($awarded eq '') {
1533: $txt_correct='';
1534: } else {
1535: $txt_correct=&mt('Incorrect');
1536: }
1537: }
1538: $message =~ s{(<td.*?>)(.*?)(</td>)}
1539: {$1 <strong>$txt_correct</strong>. $3}s;
1540: }
1541: my $trystr = "(".&mt('Try [_1]',$Apache::lonhomework::history{"$prefix.tries"}).")";
1542: if ($curr_rndseed || $lastrndseed) {
1543: if ($curr_rndseed ne $lastrndseed) {
1544: $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>';
1545: }
1546: }
1547: $message =~ s{(</td>)}{ $trystr $1};
1548: }
1549: my ($class) = ($message =~ m{<td.*class="([^"]*)"}); #"
1550: $message =~ s{(<td.*?>)}{<td>};
1551:
1552:
1553: $output.='<tr class="'.$class.'">';
1554: $output.='<td align="center">'.$count.'</td>';
1555: $output.=$message;
1556:
1557: foreach my $resid (@Apache::inputtags::response) {
1558: my $prefix = $prefix.".$resid";
1559: if (exists($Apache::lonhomework::history{"$prefix.submission"})) {
1560: my $submission =
1561: $Apache::inputtags::submission_display{"$prefix.submission"};
1562: if (!defined($submission)) {
1563: $submission =
1564: $Apache::lonhomework::history{"$prefix.submission"};
1565: }
1566: if ($is_anon) {
1567: $output.='<td>'.&mt('(only shown to submitter)').'</td>';
1568: } else {
1569: $output.='<td>'.$submission.'</td>';
1570: }
1571: } else {
1572: $output.='<td></td>';
1573: }
1574: }
1575: $output.=&Apache::loncommon::end_data_table_row()."\n";
1576: $lastrndseed = $curr_rndseed;
1577: }
1578: return if ($output eq '');
1579: my $headers =
1580: '<tr>'.'<th>'.&mt('Submission #').'</th><th>'.&mt('Try').
1581: '</th><th colspan="'.scalar(@Apache::inputtags::response).'">'.
1582: &mt('Submitted Answer').'</th>';
1583: $output ='<table class="LC_prior_tries">'.$headers.$output.'</table>';
1584: #return $output;
1585: $output = &Apache::loncommon::js_ready($output);
1586: $output.='<br /><form action=""><center><input type="button" name="close" value="'.&mt('Close Window').'" onClick="window.close()" /></center></form>';
1587:
1588: my $windowopen=&Apache::lonhtmlcommon::javascript_docopen();
1589: my $tries_text = &get_tries_text('link');
1590: my $start_page =
1591: &Apache::loncommon::start_page($tries_text, undef,
1592: {'only_body' => 1,
1593: 'bgcolor' => '#FFFFFF',
1594: 'js_ready' => 1,
1595: 'inherit_jsmath' => 1, });
1596: my $end_page =
1597: &Apache::loncommon::end_page({'js_ready' => 1,});
1598: my $prefix = $env{'form.request.prefix'};
1599: $prefix =~ tr{.}{_};
1600: my $function_name = "LONCAPA_previous_tries_".$prefix.
1601: $Apache::lonxml::curdepth.'_'.$env{'form.counter'};
1602: my $result ="<script type=\"text/javascript\">
1603: // <![CDATA[
1604: function $function_name() {newWindow=open('','new_W','width=500,height=500,scrollbars=1,resizable=yes');newWindow.$windowopen;newWindow.document.writeln('$start_page $output $end_page');newWindow.document.close();newWindow.focus()}
1605: // ]]>
1606: </script><a href=\"javascript:$function_name();void(0);\">".&mt($tries_text)."</a><br />";
1607: #use Data::Dumper;
1608: #&Apache::lonnet::logthis(&Dumper(\%Apache::inputtags::submission_display));
1609: return $result;
1610: }
1611:
1612: sub get_tries_text {
1613: my ($context) = @_;
1614: my $tries_text;
1615: if ($context eq 'link') {
1616: $tries_text = 'Previous Tries';
1617: } else {
1618: $tries_text = 'Tries';
1619: }
1620: if ( $Apache::lonhomework::type eq 'survey' ||
1621: $Apache::lonhomework::type eq 'surveycred' ||
1622: $Apache::lonhomework::type eq 'anonsurvey' ||
1623: $Apache::lonhomework::type eq 'anonsurveycred' ||
1624: $Apache::lonhomework::parsing_a_task) {
1625: if ($context eq 'link') {
1626: $tries_text = 'Previous Submissions';
1627: } else {
1628: $tries_text = 'Submissions';
1629: }
1630: }
1631: return $tries_text;
1632: }
1633:
1634: 1;
1635: __END__
1636:
1637: =pod
1638:
1639: =back
1640:
1641: =cut
1642:
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