1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.189 2006/03/09 00:43:05 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28: package Apache::inputtags;
29: use HTML::Entities();
30: use strict;
31: use Apache::loncommon;
32: use Apache::lonlocal;
33: use Apache::lonnet;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
37: }
38:
39: # Initializes a set of global variables used during the parse of the problem.
40: #
41: # @Apache::inputtags::input - List of current input ids.
42: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
43: # @Apache::inputtags::response - List of all current resopnse ids.
44: # @Apache::inputtags::responselist - List of all response ids seen this
45: # problem.
46: # @Apache::inputtags::hint - List of all hint ids.
47: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
48: # @Apache::inputtags::previous - List describing if specific responseds
49: # have been used
50: # @Apache::inputtags::previous_version - Submission responses were used in.
51: # $Apache::inputtags::part - Current part id (valid only in
52: # <problem>)
53: # 0 if not in a part.
54: # @Apache::inputtags::partlist - List of part ids seen in the current
55: # <problem>
56: # @Apache::inputtags::status - List of problem statuses. First
57: # element is the status of the <problem>
58: # the remainder are for individual <part>s.
59: # %Apache::inputtags::params - Hash of defined parameters for the
60: # current response.
61: # @Apache::inputtags::import - List of all ids for <import> thes get
62: # join()ed and prepended.
63: # @Apache::inputtags::importlist - List of all import ids seen.
64: # $Apache::inputtags::response_with_no_part
65: # - Flag set true if we have seen a response
66: # that is not inside a <part>
67: # %Apache::inputtags::answertxt - <*response> tags store correct
68: # answer strings for display by <textline/>
69: # in this hash.
70:
71: sub initialize_inputtags {
72: @Apache::inputtags::input=();
73: @Apache::inputtags::inputlist=();
74: @Apache::inputtags::response=();
75: @Apache::inputtags::responselist=();
76: @Apache::inputtags::hint=();
77: @Apache::inputtags::hintlist=();
78: @Apache::inputtags::previous=();
79: @Apache::inputtags::previous_version=();
80: $Apache::inputtags::part='';
81: @Apache::inputtags::partlist=();
82: @Apache::inputtags::status=();
83: %Apache::inputtags::params=();
84: @Apache::inputtags::import=();
85: @Apache::inputtags::importlist=();
86: $Apache::inputtags::response_with_no_part=0;
87: %Apache::inputtags::answertxt=();
88: }
89:
90: sub check_for_duplicate_ids {
91: my %check;
92: foreach my $id (@Apache::inputtags::partlist,
93: @Apache::inputtags::responselist,
94: @Apache::inputtags::hintlist,
95: @Apache::inputtags::importlist) {
96: $check{$id}++;
97: }
98: my @duplicates;
99: foreach my $id (sort(keys(%check))) {
100: if ($check{$id} > 1) {
101: push(@duplicates,$id);
102: }
103: }
104: if (@duplicates) {
105: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
106: }
107: }
108:
109: sub start_input {
110: my ($parstack,$safeeval)=@_;
111: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
112: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
113: push (@Apache::inputtags::input,$id);
114: push (@Apache::inputtags::inputlist,$id);
115: return $id;
116: }
117:
118: sub end_input {
119: pop @Apache::inputtags::input;
120: return '';
121: }
122:
123: sub addchars {
124: my ($fieldid,$addchars)=@_;
125: my $output='';
126: foreach (split(/\,/,$addchars)) {
127: $output.='<a href="javascript:void(document.forms.lonhomework.'.
128: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
129: }
130: return $output;
131: }
132:
133: sub start_textfield {
134: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
135: my $result = "";
136: my $id = &start_input($parstack,$safeeval);
137: my $resid=$Apache::inputtags::response[-1];
138: if ($target eq 'web') {
139: $Apache::lonxml::evaluate--;
140: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
141: my $partid=$Apache::inputtags::part;
142: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
143: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
144: if ( $cols eq '') { $cols = 80; }
145: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
146: if ( $rows eq '') { $rows = 16; }
147: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
148: $result='';
149: if ($addchars) {
150: $result.=&addchars('HWVAL_'.$resid,$addchars);
151: }
152: push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
153: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
154: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
155: if ($oldresponse ne '') {
156:
157: #get rid of any startup text if the user has already responded
158: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
159: }
160: } else {
161: #right or wrong don't show it
162: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
163: $result='';
164: #get rid of any startup text
165: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
166: }
167: } elsif ($target eq 'grade') {
168: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
169: $style);
170: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
171: # if the seed text is still there it wasn't a real submission
172: $env{'form.HWVAL_'.$resid}='';
173: }
174: } elsif ($target eq 'edit') {
175: $result.=&Apache::edit::tag_start($target,$token);
176: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
177: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
178: $result.=&Apache::edit::text_arg
179: ('Click-On Texts (comma sep):','addchars',$token,10);
180: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
181: $style);
182: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
183: } elsif ($target eq 'modified') {
184: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
185: $safeeval,'rows','cols',
186: 'addchars');
187: if ($constructtag) {
188: $result = &Apache::edit::rebuild_tag($token);
189: } else {
190: $result=$token->[4];
191: }
192: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
193: } elsif ($target eq 'tex') {
194: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
195: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
196: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
197: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
198: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
199: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
200: } else {
201: my $TeXwidth=$width_of_box/80;
202: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
203: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
204: $result.='}}}\vskip 2 mm ';
205: }
206: }
207: return $result;
208: }
209:
210: sub end_textfield {
211: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
212: my $result;
213: if ($target eq 'web') {
214: $Apache::lonxml::evaluate++;
215: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
216: return "</textarea>";
217: }
218: } elsif ($target eq 'edit') {
219: $result=&Apache::edit::end_table();
220: }
221: &end_input;
222: return $result;
223: }
224:
225: sub exam_box {
226: my ($target) = @_;
227: my $result;
228:
229: if ($target eq 'tex') {
230: $result.='\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
231: my $repetition = &Apache::response::repetition();
232: $result.='\begin{enumerate}';
233: foreach my $i (0..$repetition-1) {
234: $result.='\item[\textbf{'.
235: ($Apache::lonxml::counter+$i).
236: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
237: }
238: $result.= '\end{enumerate}';
239:
240: } elsif ($target eq 'web') {
241: my $id=$Apache::inputtags::response[-1];
242: $result.= '<br /><br />
243: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
244: </textarea> <br /><br />';
245: }
246: return $result;
247: }
248:
249: sub needs_exam_box {
250: my ($tagstack) = @_;
251: my @tags = ('formularesponse',
252: 'stringresponse',
253: 'reactionresponse',
254: 'organicresponse',
255: 'imageresponse',
256: );
257:
258: foreach my $tag (@tags) {
259: if (grep(/\Q$tag\E/,@$tagstack)) {
260: return 1;
261: }
262: }
263: return 0;
264: }
265:
266: sub start_textline {
267: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
268: my $result = "";
269: if ($target eq 'web') {
270: $Apache::lonxml::evaluate--;
271: my $partid=$Apache::inputtags::part;
272: my $id=$Apache::inputtags::response[-1];
273: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
274: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
275: my $maxlength;
276: if ($size eq '') { $size=20; } else {
277: if ($size < 20) { $maxlength=$size; }
278: }
279: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
280: if ($Apache::lonhomework::type ne 'exam') {
281: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
282: $result='';
283: if ($addchars) {
284: $result.=&addchars('HWVAL_'.$id,$addchars);
285: }
286: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
287: $safeeval);
288: if (lc($readonly) eq 'yes') {
289: $readonly=' readonly="readonly" ';
290: } else {
291: $readonly='';
292: }
293: $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
294: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
295: }
296: if ($Apache::lonhomework::type eq 'exam'
297: && &needs_exam_box($tagstack)) {
298: $result.=&exam_box($target);
299: }
300: } else {
301: #right or wrong don't show what was last typed in.
302: $result='<b>'.$Apache::inputtags::answertxt{$id}.'</b>';
303: #$result='';
304: }
305: } elsif ($target eq 'edit') {
306: $result=&Apache::edit::tag_start($target,$token);
307: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
308: &Apache::edit::text_arg('Click-On Texts (comma sep):',
309: 'addchars',$token,10);
310: $result.=&Apache::edit::select_arg('Readonly:','readonly',
311: ['no','yes'],$token);
312: $result.=&Apache::edit::end_row();
313: $result.=&Apache::edit::end_table();
314: } elsif ($target eq 'modified') {
315: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
316: $safeeval,'size',
317: 'addchars','readonly');
318: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
319: } elsif ($target eq 'tex'
320: && $Apache::lonhomework::type ne 'exam') {
321: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
322: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
323: $result='\framebox['.$size.'][s]{\tiny\strut}';
324:
325: } elsif ($target eq 'tex'
326: && $Apache::lonhomework::type eq 'exam'
327: && &needs_exam_box($tagstack)) {
328: $result.=&exam_box($target);
329: }
330: return $result;
331: }
332:
333: sub end_textline {
334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
335: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
336: elsif ($target eq 'edit') { return ('','no'); }
337: return "";
338: }
339:
340: sub start_hiddenline {
341: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
342: my $result = "";
343: if ($target eq 'web') {
344: $Apache::lonxml::evaluate--;
345: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
346: my $partid=$Apache::inputtags::part;
347: my $id=$Apache::inputtags::response[-1];
348: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
349: if ($Apache::lonhomework::type ne 'exam') {
350: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
351: $oldresponse.'" />';
352: }
353: }
354: } elsif ($target eq 'edit') {
355: $result=&Apache::edit::tag_start($target,$token);
356: $result.=&Apache::edit::end_table;
357: }
358:
359: if ( ($target eq 'web' || $target eq 'tex')
360: && $Apache::lonhomework::type eq 'exam'
361: && &needs_exam_box($tagstack)) {
362: $result.=&exam_box($target);
363: }
364: return $result;
365: }
366:
367: sub end_hiddenline {
368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
369: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
370: elsif ($target eq 'edit') { return ('','no'); }
371: return "";
372: }
373:
374: # $part -> partid
375: # $id -> responseid
376: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
377: # $which -> 'uploadedonly' -> only newly uploaded files
378: # 'portfolioonly' -> only allow files from portfolio
379: # 'both' -> allow files from either location
380: # $extratext -> additional text to go between the link and the input box
381: # returns a table row <tr>
382: sub file_selector {
383: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
384: if (!$uploadedfiletypes) { return ''; }
385:
386: my $jspart=$part;
387: $jspart=~s/\./_/g;
388:
389: my $result;
390:
391: $result.='<tr><td>';
392: if ($uploadedfiletypes ne '*') {
393: $result.=
394: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
395: }
396: if ($which eq 'uploadonly' || $which eq 'both') {
397: $result.=&mt('Submit a file: (only one file can be uploaded)').
398: ' <br /><input type="file" size="50" name="HWFILE'.
399: $jspart.'_'.$id.'" /><br />';
400: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
401:
402: if ($uploadedfile) {
403: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
404: &Apache::lonxml::extlink($url);
405: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
406: my $icon=&Apache::loncommon::icon($url);
407: my $curfile='<a href="'.$url.'"><img src="'.$icon.
408: '" border="0" />'.$uploadedfile.'</a>';
409: $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
410: } else {
411: #$result.=&mt('(Hand in a file you have prepared on your computer)');
412: }
413: }
414: if ( $which eq 'both') {
415: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
416: }
417: if ($which eq 'portfolioonly' || $which eq 'both') {
418: $result.=$extratext.'<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname=HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
419: &mt('Select Portfolio Files').'</a><br />'.
420: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
421: '<br />';
422: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
423: my (@filelist,@bad_file_list);
424: foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
425: my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
426: my $url="/uploaded/$domain/$user/portfolio$file";
427: my $icon=&Apache::loncommon::icon($url);
428: push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
429: '" border="0" />'.$file.'</a>');
430: if (! &Apache::lonnet::stat_file($url)) {
431: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
432: '" border="0" />'.$file.'</a>');
433: }
434: }
435: $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
436: if (@bad_file_list) {
437: $result.='<br />'.&mt('<font color="red">These file(s) don\'t exist:</font> <strong>[_1]</strong>',join(', ',@bad_file_list));
438: }
439: }
440: }
441: $result.='</td></tr>';
442: return $result;
443: }
444:
445: sub checkstatus {
446: my ($value,$awardref,$msgref)=@_;
447: for (my $i=0;$i<=$#$awardref;$i++) {
448: if ($$awardref[$i] eq $value) {
449: return ($$awardref[$i],$$msgref[$i]);
450: }
451: }
452: return(undef,undef);
453: }
454:
455: sub valid_award {
456: my ($award) =@_;
457: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
458: 'NO_RESPONSE',
459: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
460: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
461: 'UNIT_FAIL', 'NO_UNIT',
462: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
463: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
464: 'MISORDERED_RANK', 'INVALID_FILETYPE',
465: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
466: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
467: if ($award eq $possibleaward) { return 1; }
468: }
469: return 0;
470: }
471:
472: sub finalizeawards {
473: my ($awardref,$msgref,$nameref,$reverse)=@_;
474: my $result=undef;
475: my $award;
476: my $msg;
477: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
478: if ($result eq '' ) {
479: my $blankcount;
480: foreach $award (@$awardref) {
481: if ($award eq '') {
482: $result='MISSING_ANSWER';
483: $blankcount++;
484: }
485: }
486: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
487: }
488: if (defined($result)) { return ($result,$msg); }
489:
490: # these awards are ordered from most important error through best correct
491:
492: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
493: 'TOO_LONG',
494: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
495: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
496: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
497: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
498: 'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
499: 'APPROX_ANS', 'EXACT_ANS');
500: if ($reverse) { @awards=reverse(@awards); }
501: foreach my $possibleaward (@awards) {
502: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
503: if (defined($result)) { return ($result,$msg); }
504: }
505: return ('ERROR',undef);
506: }
507:
508: sub decideoutput {
509: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
510: my $message='';
511: my $button=0;
512: my $previousmsg;
513: my $bgcolor='orange';
514: my $added_computer_text=0;
515: my %possiblecolors =
516: ( 'correct' => '#aaffaa',
517: 'charged_try' => '#ffaaaa',
518: 'not_charged_try' => '#ffffaa',
519: 'no_message' => '#fffff',
520: );
521:
522: my $part = $Apache::inputtags::part;
523: my $handgrade =
524: ('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
525:
526: my $computer = ($handgrade)? ''
527: : " ".&mt("Computer's answer now shown above.");
528: &Apache::lonxml::debug("handgrade has :$handgrade:");
529:
530: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
531:
532: if ($solved =~ /^correct/) {
533: $bgcolor=$possiblecolors{'correct'};
534: $message=&mt('You are correct.');
535: if ($awarded < 1 && $awarded > 0) {
536: $message=&mt('You are partially correct.');
537: $bgcolor=$possiblecolors{'not_charged_try'};
538: } elsif ($awarded < 1) {
539: $message=&mt('Incorrect.');
540: $bgcolor=$possiblecolors{'charged_try'};
541: }
542: if ($env{'request.filename'} =~
543: m|/res/lib/templates/examupload.problem$|) {
544: $message = &mt("A score has been assigned.");
545: $added_computer_text=1;
546: } else {
547: if ($target eq 'tex') {
548: $message = '\textbf{'.$message.'}';
549: } else {
550: $message = "<b>".$message."</b>";
551: $message.= $computer;
552: }
553: $added_computer_text=1;
554: unless ($env{'course.'.
555: $env{'request.course.id'}.
556: '.disable_receipt_display'} eq 'yes') {
557: $message.=(($target eq 'web')?'<br />':' ').
558: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
559: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
560: }
561: }
562: $button=0;
563: $previousmsg='';
564: } elsif ($solved =~ /^excused/) {
565: if ($target eq 'tex') {
566: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
567: } else {
568: $message = "<b>".&mt('You are excused from the problem.')."</b>";
569: }
570: $bgcolor=$possiblecolors{'charged_try'};
571: $button=0;
572: $previousmsg='';
573: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
574: if ($solved =~ /^incorrect/ || $solved eq '') {
575: $message = &mt("Incorrect").".";
576: $bgcolor=$possiblecolors{'charged_try'};
577: $button=1;
578: } else {
579: if ($target eq 'tex') {
580: $message = '\textbf{'.&mt('You are correct.').'}';
581: } else {
582: $message = "<b>".&mt('You are correct.')."</b>";
583: $message.= $computer;
584: }
585: $added_computer_text=1;
586: unless ($env{'course.'.
587: $env{'request.course.id'}.
588: '.disable_receipt_display'} eq 'yes') {
589: $message.=(($target eq 'web')?'<br />':' ').
590: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
591: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
592: }
593: $bgcolor=$possiblecolors{'correct'};
594: $button=0;
595: $previousmsg='';
596: }
597: } elsif ($award eq 'NO_RESPONSE') {
598: $message = '';
599: $bgcolor=$possiblecolors{'no_feedback'};
600: $button=1;
601: } elsif ($award eq 'EXTRA_ANSWER') {
602: $message = &mt('Some extra items were submitted.');
603: $bgcolor=$possiblecolors{'not_charged_try'};
604: $button = 1;
605: } elsif ($award eq 'MISSING_ANSWER') {
606: $message = &mt('Some items were not submitted.');
607: $bgcolor=$possiblecolors{'not_charged_try'};
608: $button = 1;
609: } elsif ($award eq 'ERROR') {
610: $message = &mt('An error occured while grading your answer.');
611: $bgcolor=$possiblecolors{'not_charged_try'};
612: $button = 1;
613: } elsif ($award eq 'TOO_LONG') {
614: $message = &mt("The submitted answer was too long.");
615: $bgcolor=$possiblecolors{'not_charged_try'};
616: $button=1;
617: } elsif ($award eq 'WANTED_NUMERIC') {
618: $message = &mt("This question expects a numeric answer.");
619: $bgcolor=$possiblecolors{'not_charged_try'};
620: $button=1;
621: } elsif ($award eq 'MISORDERED_RANK') {
622: $message = &mt('You have provided an invalid ranking');
623: if ($target ne 'tex') {
624: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
625: }
626: $bgcolor=$possiblecolors{'not_charged_try'};
627: $button=1;
628: } elsif ($award eq 'INVALID_FILETYPE') {
629: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
630: $bgcolor=$possiblecolors{'not_charged_try'};
631: $button=1;
632: } elsif ($award eq 'SIG_FAIL') {
633: my ($used,$min,$max)=split(':',$awardmsg);
634: my $word;
635: if ($used < $min) { $word=&mt('more'); }
636: if ($used > $max) { $word=&mt('fewer'); }
637: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
638: $bgcolor=$possiblecolors{'not_charged_try'};
639: $button=1;
640: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
641: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
642: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
643: $bgcolor=$possiblecolors{'not_charged_try'};
644: $button=1;
645: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
646: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
647: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
648: $bgcolor=$possiblecolors{'not_charged_try'};
649: $button=1;
650: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
651: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
652: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
653: $bgcolor=$possiblecolors{'not_charged_try'};
654: $button=1;
655: } elsif ($award eq 'UNIT_NOTNEEDED') {
656: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
657: $bgcolor=$possiblecolors{'not_charged_try'};
658: $button=1;
659: } elsif ($award eq 'NO_UNIT') {
660: $message = &mt("Units required").'.';
661: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
662: $bgcolor=$possiblecolors{'not_charged_try'};
663: $button=1;
664: } elsif ($award eq 'COMMA_FAIL') {
665: $message = &mt("Proper comma separation is required").'.';
666: $bgcolor=$possiblecolors{'not_charged_try'};
667: $button=1;
668: } elsif ($award eq 'BAD_FORMULA') {
669: $message = &mt("Unable to understand formula");
670: $bgcolor=$possiblecolors{'not_charged_try'};
671: $button=1;
672: } elsif ($award eq 'INCORRECT') {
673: $message = &mt("Incorrect").'.';
674: $bgcolor=$possiblecolors{'charged_try'};
675: $button=1;
676: } elsif ($award eq 'SUBMITTED') {
677: $message = &mt("Your submission has been recorded.");
678: $bgcolor=$possiblecolors{'correct'};
679: $button=1;
680: } elsif ($award eq 'DRAFT') {
681: $message = &mt("A draft copy has been saved.");
682: $bgcolor=$possiblecolors{'not_charged_try'};
683: $button=1;
684: } elsif ($award eq 'ASSIGNED_SCORE') {
685: $message = &mt("A score has been assigned.");
686: $bgcolor=$possiblecolors{'correct'};
687: $button=0;
688: } elsif ($award eq '') {
689: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
690: $message = &mt("Nothing submitted.");
691: $bgcolor=$possiblecolors{'charged_try'};
692: } else {
693: $bgcolor=$possiblecolors{'not_charged_try'};
694: }
695: $button=1;
696: } else {
697: $message = &mt("Unknown message").": $award";
698: $button=1;
699: }
700: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
701: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
702: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
703: $bgcolor=$possiblecolors{'correct'};
704: $button=1;
705: }
706: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
707: !$added_computer_text && $target ne 'tex') {
708: $message.= $computer;
709: $added_computer_text=1;
710: }
711: return ($button,$bgcolor,$message,$previousmsg);
712: }
713:
714: sub markup_unit {
715: my ($unit,$target)=@_;
716: if ($target eq 'tex') {
717: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
718: } else {
719: return "<tt>".$unit."</tt>";
720: }
721: }
722:
723: sub removealldata {
724: my ($id)=@_;
725: foreach my $key (keys(%Apache::lonhomework::results)) {
726: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
727: &Apache::lonxml::debug("Removing $key");
728: delete($Apache::lonhomework::results{$key});
729: }
730: }
731: }
732:
733: sub hidealldata {
734: my ($id)=@_;
735: foreach my $key (keys(%Apache::lonhomework::results)) {
736: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
737: &Apache::lonxml::debug("Hidding $key");
738: my $newkey=$key;
739: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
740: $Apache::lonhomework::results{$newkey}=
741: $Apache::lonhomework::results{$key};
742: delete($Apache::lonhomework::results{$key});
743: }
744: }
745: }
746:
747: sub setgradedata {
748: my ($award,$msg,$id,$previously_used) = @_;
749: if ($Apache::lonhomework::scantronmode &&
750: &Apache::lonnet::validCODE($env{'form.CODE'})) {
751: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
752: } elsif ($Apache::lonhomework::scantronmode &&
753: $env{'form.CODE'} eq '' &&
754: $Apache::lonhomework::history{"resource.CODE"} ne '') {
755: $Apache::lonhomework::results{"resource.CODE"}='';
756: }
757:
758: if (!$Apache::lonhomework::scantronmode &&
759: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
760: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
761: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
762: return '';
763: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
764: /^correct/ || $Apache::lonhomework::scantronmode ||
765: lc($Apache::lonhomework::problemstatus) eq 'no') {
766: # the student doesn't already have it correct,
767: # or we are in a mode (scantron orno problem status) where a correct
768: # can become incorrect
769: # handle assignment of tries and solved status
770: my $solvemsg;
771: if ($Apache::lonhomework::scantronmode) {
772: $solvemsg='correct_by_scantron';
773: } else {
774: $solvemsg='correct_by_student';
775: }
776: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
777: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
778: }
779: if ( $award eq 'ASSIGNED_SCORE') {
780: $Apache::lonhomework::results{"resource.$id.tries"} =
781: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
782: $Apache::lonhomework::results{"resource.$id.solved"} =
783: $solvemsg;
784: my $numawards=scalar(@Apache::inputtags::response);
785: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
786: foreach my $res (@Apache::inputtags::response) {
787: $Apache::lonhomework::results{"resource.$id.awarded"}+=
788: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
789: }
790: if ($numawards > 0) {
791: $Apache::lonhomework::results{"resource.$id.awarded"}/=
792: $numawards;
793: }
794: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
795: $Apache::lonhomework::results{"resource.$id.tries"} =
796: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
797: $Apache::lonhomework::results{"resource.$id.solved"} =
798: $solvemsg;
799: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
800: } elsif ( $award eq 'INCORRECT' ) {
801: $Apache::lonhomework::results{"resource.$id.tries"} =
802: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
803: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
804: $Apache::lonhomework::scantronmode) {
805: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
806: }
807: $Apache::lonhomework::results{"resource.$id.solved"} =
808: 'incorrect_attempted';
809: } elsif ( $award eq 'SUBMITTED' ) {
810: $Apache::lonhomework::results{"resource.$id.tries"} =
811: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
812: $Apache::lonhomework::results{"resource.$id.solved"} =
813: 'ungraded_attempted';
814: } elsif ( $award eq 'DRAFT' ) {
815: $Apache::lonhomework::results{"resource.$id.solved"} = '';
816: } elsif ( $award eq 'NO_RESPONSE' ) {
817: #no real response so delete any data that got stored
818: &removealldata($id);
819: return '';
820: } else {
821: $Apache::lonhomework::results{"resource.$id.solved"} =
822: 'incorrect_attempted';
823: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
824: $Apache::lonhomework::scantronmode) {
825: $Apache::lonhomework::results{"resource.$id.tries"} =
826: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
827: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
828: }
829: }
830: if (defined($msg)) {
831: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
832: }
833: # did either of the overall awards chage? If so ignore the
834: # previous check
835: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
836: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
837: ($Apache::lonhomework::results{"resource.$id.solved"} eq
838: $Apache::lonhomework::history{"resource.$id.solved"})) {
839: # check if this was a previous submission if it was delete the
840: # unneeded data and update the previously_used attribute
841: if ( $previously_used eq 'PREVIOUSLY_USED') {
842: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
843: delete($Apache::lonhomework::results{"resource.$id.tries"});
844: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
845: }
846: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
847: #delete all data as they student didn't do anything, but save
848: #the list of collaborators.
849: &removealldata($id);
850: #and since they didn't do anything we were never here
851: return '';
852: } else {
853: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
854: }
855: }
856: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
857: /^correct/ ) {
858: #delete all data as they student already has it correct
859: &removealldata($id);
860: #and since they didn't do anything we were never here
861: return '';
862: }
863: $Apache::lonhomework::results{"resource.$id.award"} = $award;
864: if ($award eq 'SUBMITTED') {
865: &Apache::response::add_to_gradingqueue();
866: }
867: }
868:
869: sub grade {
870: my ($target) = @_;
871: my $id = $Apache::inputtags::part;
872: my $response='';
873: if ( defined $env{'form.submitted'}) {
874: my (@awards,@msgs);
875: foreach $response (@Apache::inputtags::response) {
876: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
877: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
878: &Apache::lonxml::debug("keeping $value from $response for $id");
879: push (@awards,$value);
880: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
881: &Apache::lonxml::debug("got message $value from $response for $id");
882: push (@msgs,$value);
883: }
884: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
885: my $previously_used;
886: if ( $#Apache::inputtags::previous eq $#awards ) {
887: my $match=0;
888: my @matches;
889: foreach my $versionar (@Apache::inputtags::previous_version) {
890: foreach my $version (@$versionar) {
891: $matches[$version]++;
892: }
893: }
894: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
895: if ($match) {
896: $previously_used = 'PREVIOUSLY_LAST';
897: foreach my $value (@Apache::inputtags::previous) {
898: if ($value eq 'PREVIOUSLY_USED' ) {
899: $previously_used = $value;
900: last;
901: }
902: }
903: }
904: }
905: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
906: &setgradedata($finalaward,$msg,$id,$previously_used);
907: }
908: return '';
909: }
910:
911: sub gradestatus {
912: my ($id,$target) = @_;
913: my $showbutton = 1;
914: my $bgcolor = '';
915: my $message = '';
916: my $latemessage = '';
917: my $trystr='';
918: my $button='';
919: my $previousmsg='';
920:
921: my $status = $Apache::inputtags::status['-1'];
922: &Apache::lonxml::debug("gradestatus has :$status:");
923: if ( $status ne 'CLOSED'
924: && $status ne 'UNAVAILABLE'
925: && $status ne 'INVALID_ACCESS'
926: && $status ne 'NEEDS_CHECKIN'
927: && $status ne 'NOT_IN_A_SLOT') {
928: my $award = $Apache::lonhomework::history{"resource.$id.award"};
929: my $awarded = $Apache::lonhomework::history{"resource.$id.awarded"};
930: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
931: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
932: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
933: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
934: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
935: &Apache::lonxml::debug('Getting message');
936: ($showbutton,$bgcolor,$message,$previousmsg) =
937: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
938: $target);
939: if ($target eq 'tex') {
940: $message='\vskip 2 mm '.$message.' ';
941: } else {
942: $message="<td bgcolor=\"$bgcolor\">$message</td>";
943: if ($previousmsg) {
944: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
945: }
946: }
947: }
948: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
949: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
950: &Apache::lonxml::debug("got maxtries of :$maxtries:");
951: #if tries are set to negative turn off the Tries/Button and messages
952: if (defined($maxtries) && $maxtries < 0) { return ''; }
953: if ( $tries eq '' ) { $tries = '0'; }
954: if ( $maxtries eq '' ) { $maxtries = '2'; }
955: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
956: my $tries_text=&mt('Tries');
957: if ( $Apache::lonhomework::type eq 'survey' ||
958: $Apache::lonhomework::parsing_a_task) {
959: $tries_text=&mt('Submissions');
960: }
961: if ( $showbutton ) {
962: if ($target eq 'tex') {
963: if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
964: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
965: } else {
966: $trystr = '\vskip 0 mm ';
967: }
968: } else {
969: $trystr = "<td><nobr>".$tries_text." $tries";
970: if ($Apache::lonhomework::parsing_a_task) {
971: } elsif($env{'request.state'} ne 'construct') {
972: $trystr.="/$maxtries";
973: } else {
974: if (defined($Apache::inputtags::params{'maxtries'})) {
975: $trystr.="/".$Apache::inputtags::params{'maxtries'};
976: }
977: }
978: $trystr.="</nobr></td>";
979: }
980: }
981: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
982: if ( $showbutton ) {
983: if ($target ne 'tex') {
984: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
985: }
986: }
987: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
988: #last submissions was after due date
989: $latemessage=&mt(' The last submission was after the Due Date ');;
990: if ($target eq 'web') {
991: $latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
992: }
993: }
994: }
995: my $output= $previousmsg.$latemessage.$message.$trystr;
996: if ($output =~ /^\s*$/) {
997: return $button;
998: } else {
999: if ($target eq 'tex') {
1000: return $button.' \vskip 0 mm '.$output.' ';
1001: } else {
1002: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
1003: }
1004: }
1005: }
1006: 1;
1007: __END__
1008:
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