1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.193 2006/05/30 18:08:35 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: use lib '/home/httpd/lib/perl/';
35: use LONCAPA;
36:
37:
38: BEGIN {
39: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
40: }
41:
42: # Initializes a set of global variables used during the parse of the problem.
43: #
44: # @Apache::inputtags::input - List of current input ids.
45: # @Apache::inputtags::inputlist - List of all input ids seen this problem.
46: # @Apache::inputtags::response - List of all current resopnse ids.
47: # @Apache::inputtags::responselist - List of all response ids seen this
48: # problem.
49: # @Apache::inputtags::hint - List of all hint ids.
50: # @Apache::inputtags::hintlist - List of all hint ids seen this problem.
51: # @Apache::inputtags::previous - List describing if specific responseds
52: # have been used
53: # @Apache::inputtags::previous_version - Submission responses were used in.
54: # $Apache::inputtags::part - Current part id (valid only in
55: # <problem>)
56: # 0 if not in a part.
57: # @Apache::inputtags::partlist - List of part ids seen in the current
58: # <problem>
59: # @Apache::inputtags::status - List of problem statuses. First
60: # element is the status of the <problem>
61: # the remainder are for individual <part>s.
62: # %Apache::inputtags::params - Hash of defined parameters for the
63: # current response.
64: # @Apache::inputtags::import - List of all ids for <import> thes get
65: # join()ed and prepended.
66: # @Apache::inputtags::importlist - List of all import ids seen.
67: # $Apache::inputtags::response_with_no_part
68: # - Flag set true if we have seen a response
69: # that is not inside a <part>
70: # %Apache::inputtags::answertxt - <*response> tags store correct
71: # answer strings for display by <textline/>
72: # in this hash.
73:
74: sub initialize_inputtags {
75: @Apache::inputtags::input=();
76: @Apache::inputtags::inputlist=();
77: @Apache::inputtags::response=();
78: @Apache::inputtags::responselist=();
79: @Apache::inputtags::hint=();
80: @Apache::inputtags::hintlist=();
81: @Apache::inputtags::previous=();
82: @Apache::inputtags::previous_version=();
83: $Apache::inputtags::part='';
84: @Apache::inputtags::partlist=();
85: @Apache::inputtags::status=();
86: %Apache::inputtags::params=();
87: @Apache::inputtags::import=();
88: @Apache::inputtags::importlist=();
89: $Apache::inputtags::response_with_no_part=0;
90: %Apache::inputtags::answertxt=();
91: }
92:
93: sub check_for_duplicate_ids {
94: my %check;
95: foreach my $id (@Apache::inputtags::partlist,
96: @Apache::inputtags::responselist,
97: @Apache::inputtags::hintlist,
98: @Apache::inputtags::importlist) {
99: $check{$id}++;
100: }
101: my @duplicates;
102: foreach my $id (sort(keys(%check))) {
103: if ($check{$id} > 1) {
104: push(@duplicates,$id);
105: }
106: }
107: if (@duplicates) {
108: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
109: }
110: }
111:
112: sub start_input {
113: my ($parstack,$safeeval)=@_;
114: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
115: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
116: push (@Apache::inputtags::input,$id);
117: push (@Apache::inputtags::inputlist,$id);
118: return $id;
119: }
120:
121: sub end_input {
122: pop @Apache::inputtags::input;
123: return '';
124: }
125:
126: sub addchars {
127: my ($fieldid,$addchars)=@_;
128: my $output='';
129: foreach (split(/\,/,$addchars)) {
130: $output.='<a href="javascript:void(document.forms.lonhomework.'.
131: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
132: }
133: return $output;
134: }
135:
136: sub start_textfield {
137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
138: my $result = "";
139: my $id = &start_input($parstack,$safeeval);
140: my $resid=$Apache::inputtags::response[-1];
141: if ($target eq 'web') {
142: $Apache::lonxml::evaluate--;
143: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
144: my $partid=$Apache::inputtags::part;
145: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
146: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
147: if ( $cols eq '') { $cols = 80; }
148: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
149: if ( $rows eq '') { $rows = 16; }
150: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
151: $result='';
152: if ($addchars) {
153: $result.=&addchars('HWVAL_'.$resid,$addchars);
154: }
155: &Apache::lonhtmlcommon::add_htmlareafields('HWVAL_'.$resid);
156: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
157: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
158: if ($oldresponse ne '') {
159:
160: #get rid of any startup text if the user has already responded
161: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
162: }
163: } else {
164: #right or wrong don't show it
165: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
166: $result='';
167: #get rid of any startup text
168: &Apache::lonxml::get_all_text("/textfield",$parser,$style);
169: }
170: } elsif ($target eq 'grade') {
171: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser,
172: $style);
173: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
174: # if the seed text is still there it wasn't a real submission
175: $env{'form.HWVAL_'.$resid}='';
176: }
177: } elsif ($target eq 'edit') {
178: $result.=&Apache::edit::tag_start($target,$token);
179: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
180: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
181: $result.=&Apache::edit::text_arg
182: ('Click-On Texts (comma sep):','addchars',$token,10);
183: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser,
184: $style);
185: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
186: } elsif ($target eq 'modified') {
187: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
188: $safeeval,'rows','cols',
189: 'addchars');
190: if ($constructtag) {
191: $result = &Apache::edit::rebuild_tag($token);
192: } else {
193: $result=$token->[4];
194: }
195: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
196: } elsif ($target eq 'tex') {
197: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
198: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
199: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
200: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
201: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
202: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
203: } else {
204: my $TeXwidth=$width_of_box/80;
205: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
206: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
207: $result.='}}}\vskip 2 mm ';
208: }
209: }
210: return $result;
211: }
212:
213: sub end_textfield {
214: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
215: my $result;
216: if ($target eq 'web') {
217: $Apache::lonxml::evaluate++;
218: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
219: return "</textarea>";
220: }
221: } elsif ($target eq 'edit') {
222: $result=&Apache::edit::end_table();
223: }
224: &end_input;
225: return $result;
226: }
227:
228: sub exam_score_line {
229: my ($target) = @_;
230:
231: my $result;
232: if ($target eq 'tex') {
233: my $repetition = &Apache::response::repetition();
234: $result.='\begin{enumerate}';
235: if ($env{'request.state'} eq "construct" ) {$result.='\item[\strut]';}
236: foreach my $i (0..$repetition-1) {
237: $result.='\item[\textbf{'.
238: ($Apache::lonxml::counter+$i).
239: '}.]\textit{Leave blank on scoring form}\vskip 0 mm';
240: }
241: $result.= '\end{enumerate}';
242: }
243:
244: return $result;
245: }
246:
247: sub exam_box {
248: my ($target) = @_;
249: my $result;
250:
251: if ($target eq 'tex') {
252: $result .= '\fbox{\fbox{\parbox{\textwidth-5mm}{\strut\\\\\strut\\\\\strut\\\\\strut\\\\}}}';
253: $result .= &exam_score_line($target);
254: } elsif ($target eq 'web') {
255: my $id=$Apache::inputtags::response[-1];
256: $result.= '<br /><br />
257: <textarea name="HWVAL_'.$id.'" rows="4" cols="50">
258: </textarea> <br /><br />';
259: }
260: return $result;
261: }
262:
263: sub needs_exam_box {
264: my ($tagstack) = @_;
265: my @tags = ('formularesponse',
266: 'stringresponse',
267: 'reactionresponse',
268: 'organicresponse',
269: );
270:
271: foreach my $tag (@tags) {
272: if (grep(/\Q$tag\E/,@$tagstack)) {
273: return 1;
274: }
275: }
276: return 0;
277: }
278:
279: sub start_textline {
280: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
281: my $result = "";
282: if ($target eq 'web') {
283: $Apache::lonxml::evaluate--;
284: my $partid=$Apache::inputtags::part;
285: my $id=$Apache::inputtags::response[-1];
286: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER'
287: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
288: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
289: my $maxlength;
290: if ($size eq '') { $size=20; } else {
291: if ($size < 20) { $maxlength=$size; }
292: }
293: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
294: if ($Apache::lonhomework::type ne 'exam') {
295: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
296: $result='';
297: if ($addchars) {
298: $result.=&addchars('HWVAL_'.$id,$addchars);
299: }
300: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
301: $safeeval);
302: if (lc($readonly) eq 'yes'
303: || $Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
304: $readonly=' readonly="readonly" ';
305: } else {
306: $readonly='';
307: }
308: my $name = 'HWVAL_'.$id;
309: if ($Apache::inputtags::status[-1] eq 'CANNOT_ANSWER') {
310: $name = "none";
311: }
312: $result.= '<input type="text" '.$readonly.' name="'.$name.'" value="'.
313: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
314: }
315: if ($Apache::lonhomework::type eq 'exam'
316: && &needs_exam_box($tagstack)) {
317: $result.=&exam_box($target);
318: }
319: } else {
320: #right or wrong don't show what was last typed in.
321: $result='<b>'.$Apache::inputtags::answertxt{$id}.'</b>';
322: #$result='';
323: }
324: } elsif ($target eq 'edit') {
325: $result=&Apache::edit::tag_start($target,$token);
326: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
327: &Apache::edit::text_arg('Click-On Texts (comma sep):',
328: 'addchars',$token,10);
329: $result.=&Apache::edit::select_arg('Readonly:','readonly',
330: ['no','yes'],$token);
331: $result.=&Apache::edit::end_row();
332: $result.=&Apache::edit::end_table();
333: } elsif ($target eq 'modified') {
334: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
335: $safeeval,'size',
336: 'addchars','readonly');
337: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
338: } elsif ($target eq 'tex'
339: && $Apache::lonhomework::type ne 'exam') {
340: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
341: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
342: $result='\framebox['.$size.'][s]{\tiny\strut}';
343:
344: } elsif ($target eq 'tex'
345: && $Apache::lonhomework::type eq 'exam'
346: && &needs_exam_box($tagstack)) {
347: $result.=&exam_box($target);
348: }
349: return $result;
350: }
351:
352: sub end_textline {
353: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
354: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
355: elsif ($target eq 'edit') { return ('','no'); }
356: return "";
357: }
358:
359: sub start_hiddenline {
360: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
361: my $result = "";
362: if ($target eq 'web') {
363: $Apache::lonxml::evaluate--;
364: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
365: my $partid=$Apache::inputtags::part;
366: my $id=$Apache::inputtags::response[-1];
367: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
368: if ($Apache::lonhomework::type ne 'exam') {
369: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
370: $oldresponse.'" />';
371: }
372: }
373: } elsif ($target eq 'edit') {
374: $result=&Apache::edit::tag_start($target,$token);
375: $result.=&Apache::edit::end_table;
376: }
377:
378: if ( ($target eq 'web' || $target eq 'tex')
379: && $Apache::lonhomework::type eq 'exam'
380: && &needs_exam_box($tagstack)) {
381: $result.=&exam_box($target);
382: }
383: return $result;
384: }
385:
386: sub end_hiddenline {
387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
388: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
389: elsif ($target eq 'edit') { return ('','no'); }
390: return "";
391: }
392:
393: # $part -> partid
394: # $id -> responseid
395: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
396: # $which -> 'uploadedonly' -> only newly uploaded files
397: # 'portfolioonly' -> only allow files from portfolio
398: # 'both' -> allow files from either location
399: # $extratext -> additional text to go between the link and the input box
400: # returns a table row <tr>
401: sub file_selector {
402: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
403: if (!$uploadedfiletypes) { return ''; }
404:
405: my $jspart=$part;
406: $jspart=~s/\./_/g;
407:
408: my $result;
409:
410: $result.='<tr><td>';
411: if ($uploadedfiletypes ne '*') {
412: $result.=
413: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
414: }
415: if ($which eq 'uploadonly' || $which eq 'both') {
416: $result.=&mt('Submit a file: (only one file can be uploaded)').
417: ' <br /><input type="file" size="50" name="HWFILE'.
418: $jspart.'_'.$id.'" /><br />';
419: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
420:
421: if ($uploadedfile) {
422: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
423: &Apache::lonxml::extlink($url);
424: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
425: my $icon=&Apache::loncommon::icon($url);
426: my $curfile='<a href="'.$url.'"><img src="'.$icon.
427: '" border="0" />'.$uploadedfile.'</a>';
428: $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
429: } else {
430: #$result.=&mt('(Hand in a file you have prepared on your computer)');
431: }
432: }
433: if ( $which eq 'both') {
434: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
435: }
436: if ($which eq 'portfolioonly' || $which eq 'both') {
437: $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"))'."'".'>'.
438: &mt('Select Portfolio Files').'</a><br />'.
439: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
440: '<br />';
441: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
442: my (@filelist,@bad_file_list);
443: foreach my $file (split(',',&unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
444: my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
445: my $url="/uploaded/$domain/$user/portfolio$file";
446: my $icon=&Apache::loncommon::icon($url);
447: push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
448: '" border="0" />'.$file.'</a>');
449: if (! &Apache::lonnet::stat_file($url)) {
450: push(@bad_file_list,'<a href="'.$url.'"><img src="'.$icon.
451: '" border="0" />'.$file.'</a>');
452: }
453: }
454: $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
455: if (@bad_file_list) {
456: $result.='<br />'.&mt('<font color="red">These file(s) don\'t exist:</font> <strong>[_1]</strong>',join(', ',@bad_file_list));
457: }
458: }
459: }
460: $result.='</td></tr>';
461: return $result;
462: }
463:
464: sub checkstatus {
465: my ($value,$awardref,$msgref)=@_;
466: for (my $i=0;$i<=$#$awardref;$i++) {
467: if ($$awardref[$i] eq $value) {
468: return ($$awardref[$i],$$msgref[$i]);
469: }
470: }
471: return(undef,undef);
472: }
473:
474: sub valid_award {
475: my ($award) =@_;
476: foreach my $possibleaward ('EXTRA_ANSWER','MISSING_ANSWER', 'ERROR',
477: 'NO_RESPONSE',
478: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
479: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
480: 'UNIT_FAIL', 'NO_UNIT',
481: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
482: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
483: 'MISORDERED_RANK', 'INVALID_FILETYPE',
484: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
485: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
486: if ($award eq $possibleaward) { return 1; }
487: }
488: return 0;
489: }
490:
491: sub finalizeawards {
492: my ($awardref,$msgref,$nameref,$reverse)=@_;
493: my $result=undef;
494: my $award;
495: my $msg;
496: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
497: if ($result eq '' ) {
498: my $blankcount;
499: foreach $award (@$awardref) {
500: if ($award eq '') {
501: $result='MISSING_ANSWER';
502: $blankcount++;
503: }
504: }
505: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
506: }
507: if (defined($result)) { return ($result,$msg); }
508:
509: # these awards are ordered from most important error through best correct
510:
511: my @awards = ('EXTRA_ANSWER', 'MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
512: 'TOO_LONG',
513: 'UNIT_INVALID_INSTRUCTOR', 'UNIT_INVALID_STUDENT',
514: 'UNIT_IRRECONCIBLE', 'UNIT_FAIL', 'NO_UNIT',
515: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC', 'BAD_FORMULA',
516: 'COMMA_FAIL', 'SIG_FAIL', 'INCORRECT', 'MISORDERED_RANK',
517: 'INVALID_FILETYPE', 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
518: 'APPROX_ANS', 'EXACT_ANS');
519: if ($reverse) { @awards=reverse(@awards); }
520: foreach my $possibleaward (@awards) {
521: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
522: if (defined($result)) { return ($result,$msg); }
523: }
524: return ('ERROR',undef);
525: }
526:
527: sub decideoutput {
528: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
529: my $message='';
530: my $button=0;
531: my $previousmsg;
532: my $bgcolor='orange';
533: my $added_computer_text=0;
534: my %possiblecolors =
535: ( 'correct' => '#aaffaa',
536: 'charged_try' => '#ffaaaa',
537: 'not_charged_try' => '#ffffaa',
538: 'no_message' => '#fffff',
539: );
540:
541: my $part = $Apache::inputtags::part;
542: my $handgrade =
543: ('yes' eq lc(&Apache::lonnet::EXT("resource.$part.handgrade")));
544:
545: my $computer = ($handgrade)? ''
546: : " ".&mt("Computer's answer now shown above.");
547: &Apache::lonxml::debug("handgrade has :$handgrade:");
548:
549: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
550:
551: if ($solved =~ /^correct/) {
552: $bgcolor=$possiblecolors{'correct'};
553: $message=&mt('You are correct.');
554: if ($awarded < 1 && $awarded > 0) {
555: $message=&mt('You are partially correct.');
556: $bgcolor=$possiblecolors{'not_charged_try'};
557: } elsif ($awarded < 1) {
558: $message=&mt('Incorrect.');
559: $bgcolor=$possiblecolors{'charged_try'};
560: }
561: if ($env{'request.filename'} =~
562: m|/res/lib/templates/examupload.problem$|) {
563: $message = &mt("A score has been assigned.");
564: $added_computer_text=1;
565: } else {
566: if ($target eq 'tex') {
567: $message = '\textbf{'.$message.'}';
568: } else {
569: $message = "<b>".$message."</b>";
570: $message.= $computer;
571: }
572: $added_computer_text=1;
573: unless ($env{'course.'.
574: $env{'request.course.id'}.
575: '.disable_receipt_display'} eq 'yes') {
576: $message.=(($target eq 'web')?'<br />':' ').
577: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
578: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
579: }
580: }
581: $button=0;
582: $previousmsg='';
583: } elsif ($solved =~ /^excused/) {
584: if ($target eq 'tex') {
585: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
586: } else {
587: $message = "<b>".&mt('You are excused from the problem.')."</b>";
588: }
589: $bgcolor=$possiblecolors{'charged_try'};
590: $button=0;
591: $previousmsg='';
592: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
593: if ($solved =~ /^incorrect/ || $solved eq '') {
594: $message = &mt("Incorrect").".";
595: $bgcolor=$possiblecolors{'charged_try'};
596: $button=1;
597: } else {
598: if ($target eq 'tex') {
599: $message = '\textbf{'.&mt('You are correct.').'}';
600: } else {
601: $message = "<b>".&mt('You are correct.')."</b>";
602: $message.= $computer;
603: }
604: $added_computer_text=1;
605: unless ($env{'course.'.
606: $env{'request.course.id'}.
607: '.disable_receipt_display'} eq 'yes') {
608: $message.=(($target eq 'web')?'<br />':' ').
609: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
610: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
611: }
612: $bgcolor=$possiblecolors{'correct'};
613: $button=0;
614: $previousmsg='';
615: }
616: } elsif ($award eq 'NO_RESPONSE') {
617: $message = '';
618: $bgcolor=$possiblecolors{'no_feedback'};
619: $button=1;
620: } elsif ($award eq 'EXTRA_ANSWER') {
621: $message = &mt('Some extra items were submitted.');
622: $bgcolor=$possiblecolors{'not_charged_try'};
623: $button = 1;
624: } elsif ($award eq 'MISSING_ANSWER') {
625: $message = &mt('Some items were not submitted.');
626: $bgcolor=$possiblecolors{'not_charged_try'};
627: $button = 1;
628: } elsif ($award eq 'ERROR') {
629: $message = &mt('An error occured while grading your answer.');
630: $bgcolor=$possiblecolors{'not_charged_try'};
631: $button = 1;
632: } elsif ($award eq 'TOO_LONG') {
633: $message = &mt("The submitted answer was too long.");
634: $bgcolor=$possiblecolors{'not_charged_try'};
635: $button=1;
636: } elsif ($award eq 'WANTED_NUMERIC') {
637: $message = &mt("This question expects a numeric answer.");
638: $bgcolor=$possiblecolors{'not_charged_try'};
639: $button=1;
640: } elsif ($award eq 'MISORDERED_RANK') {
641: $message = &mt('You have provided an invalid ranking');
642: if ($target ne 'tex') {
643: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
644: }
645: $bgcolor=$possiblecolors{'not_charged_try'};
646: $button=1;
647: } elsif ($award eq 'INVALID_FILETYPE') {
648: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
649: $bgcolor=$possiblecolors{'not_charged_try'};
650: $button=1;
651: } elsif ($award eq 'SIG_FAIL') {
652: my ($used,$min,$max)=split(':',$awardmsg);
653: my $word;
654: if ($used < $min) { $word=&mt('more'); }
655: if ($used > $max) { $word=&mt('fewer'); }
656: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
657: $bgcolor=$possiblecolors{'not_charged_try'};
658: $button=1;
659: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
660: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
661: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
662: $bgcolor=$possiblecolors{'not_charged_try'};
663: $button=1;
664: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
665: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
666: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
667: $bgcolor=$possiblecolors{'not_charged_try'};
668: $button=1;
669: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
670: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
671: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
672: $bgcolor=$possiblecolors{'not_charged_try'};
673: $button=1;
674: } elsif ($award eq 'UNIT_NOTNEEDED') {
675: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
676: $bgcolor=$possiblecolors{'not_charged_try'};
677: $button=1;
678: } elsif ($award eq 'NO_UNIT') {
679: $message = &mt("Units required").'.';
680: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
681: $bgcolor=$possiblecolors{'not_charged_try'};
682: $button=1;
683: } elsif ($award eq 'COMMA_FAIL') {
684: $message = &mt("Proper comma separation is required").'.';
685: $bgcolor=$possiblecolors{'not_charged_try'};
686: $button=1;
687: } elsif ($award eq 'BAD_FORMULA') {
688: $message = &mt("Unable to understand formula");
689: $bgcolor=$possiblecolors{'not_charged_try'};
690: $button=1;
691: } elsif ($award eq 'INCORRECT') {
692: $message = &mt("Incorrect").'.';
693: $bgcolor=$possiblecolors{'charged_try'};
694: $button=1;
695: } elsif ($award eq 'SUBMITTED') {
696: $message = &mt("Your submission has been recorded.");
697: $bgcolor=$possiblecolors{'correct'};
698: $button=1;
699: } elsif ($award eq 'DRAFT') {
700: $message = &mt("A draft copy has been saved.");
701: $bgcolor=$possiblecolors{'not_charged_try'};
702: $button=1;
703: } elsif ($award eq 'ASSIGNED_SCORE') {
704: $message = &mt("A score has been assigned.");
705: $bgcolor=$possiblecolors{'correct'};
706: $button=0;
707: } elsif ($award eq '') {
708: if ($handgrade && $Apache::inputtags::status[-1] eq 'SHOW_ANSWER') {
709: $message = &mt("Nothing submitted.");
710: $bgcolor=$possiblecolors{'charged_try'};
711: } else {
712: $bgcolor=$possiblecolors{'not_charged_try'};
713: }
714: $button=1;
715: } else {
716: $message = &mt("Unknown message").": $award";
717: $button=1;
718: }
719: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
720: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
721: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
722: $bgcolor=$possiblecolors{'correct'};
723: $button=1;
724: }
725: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
726: !$added_computer_text && $target ne 'tex') {
727: $message.= $computer;
728: $added_computer_text=1;
729: }
730: return ($button,$bgcolor,$message,$previousmsg);
731: }
732:
733: sub markup_unit {
734: my ($unit,$target)=@_;
735: if ($target eq 'tex') {
736: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
737: } else {
738: return "<tt>".$unit."</tt>";
739: }
740: }
741:
742: sub removealldata {
743: my ($id)=@_;
744: foreach my $key (keys(%Apache::lonhomework::results)) {
745: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
746: &Apache::lonxml::debug("Removing $key");
747: delete($Apache::lonhomework::results{$key});
748: }
749: }
750: }
751:
752: sub hidealldata {
753: my ($id)=@_;
754: foreach my $key (keys(%Apache::lonhomework::results)) {
755: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
756: &Apache::lonxml::debug("Hidding $key");
757: my $newkey=$key;
758: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
759: $Apache::lonhomework::results{$newkey}=
760: $Apache::lonhomework::results{$key};
761: delete($Apache::lonhomework::results{$key});
762: }
763: }
764: }
765:
766: sub setgradedata {
767: my ($award,$msg,$id,$previously_used) = @_;
768: if ($Apache::lonhomework::scantronmode &&
769: &Apache::lonnet::validCODE($env{'form.CODE'})) {
770: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
771: } elsif ($Apache::lonhomework::scantronmode &&
772: $env{'form.CODE'} eq '' &&
773: $Apache::lonhomework::history{"resource.CODE"} ne '') {
774: $Apache::lonhomework::results{"resource.CODE"}='';
775: }
776:
777: if (!$Apache::lonhomework::scantronmode &&
778: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
779: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
780: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
781: return '';
782: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
783: /^correct/ || $Apache::lonhomework::scantronmode ||
784: lc($Apache::lonhomework::problemstatus) eq 'no') {
785: # the student doesn't already have it correct,
786: # or we are in a mode (scantron orno problem status) where a correct
787: # can become incorrect
788: # handle assignment of tries and solved status
789: my $solvemsg;
790: if ($Apache::lonhomework::scantronmode) {
791: $solvemsg='correct_by_scantron';
792: } else {
793: $solvemsg='correct_by_student';
794: }
795: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
796: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
797: }
798: if ( $award eq 'ASSIGNED_SCORE') {
799: $Apache::lonhomework::results{"resource.$id.tries"} =
800: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
801: $Apache::lonhomework::results{"resource.$id.solved"} =
802: $solvemsg;
803: my $numawards=scalar(@Apache::inputtags::response);
804: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
805: foreach my $res (@Apache::inputtags::response) {
806: $Apache::lonhomework::results{"resource.$id.awarded"}+=
807: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
808: }
809: if ($numawards > 0) {
810: $Apache::lonhomework::results{"resource.$id.awarded"}/=
811: $numawards;
812: }
813: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
814: $Apache::lonhomework::results{"resource.$id.tries"} =
815: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
816: $Apache::lonhomework::results{"resource.$id.solved"} =
817: $solvemsg;
818: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
819: } elsif ( $award eq 'INCORRECT' ) {
820: $Apache::lonhomework::results{"resource.$id.tries"} =
821: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
822: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
823: $Apache::lonhomework::scantronmode) {
824: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
825: }
826: $Apache::lonhomework::results{"resource.$id.solved"} =
827: 'incorrect_attempted';
828: } elsif ( $award eq 'SUBMITTED' ) {
829: $Apache::lonhomework::results{"resource.$id.tries"} =
830: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
831: $Apache::lonhomework::results{"resource.$id.solved"} =
832: 'ungraded_attempted';
833: } elsif ( $award eq 'DRAFT' ) {
834: $Apache::lonhomework::results{"resource.$id.solved"} = '';
835: } elsif ( $award eq 'NO_RESPONSE' ) {
836: #no real response so delete any data that got stored
837: &removealldata($id);
838: return '';
839: } else {
840: $Apache::lonhomework::results{"resource.$id.solved"} =
841: 'incorrect_attempted';
842: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
843: $Apache::lonhomework::scantronmode) {
844: $Apache::lonhomework::results{"resource.$id.tries"} =
845: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
846: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
847: }
848: }
849: if (defined($msg)) {
850: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
851: }
852: # did either of the overall awards chage? If so ignore the
853: # previous check
854: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
855: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
856: ($Apache::lonhomework::results{"resource.$id.solved"} eq
857: $Apache::lonhomework::history{"resource.$id.solved"})) {
858: # check if this was a previous submission if it was delete the
859: # unneeded data and update the previously_used attribute
860: if ( $previously_used eq 'PREVIOUSLY_USED') {
861: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
862: delete($Apache::lonhomework::results{"resource.$id.tries"});
863: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
864: }
865: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
866: #delete all data as they student didn't do anything, but save
867: #the list of collaborators.
868: &removealldata($id);
869: #and since they didn't do anything we were never here
870: return '';
871: } else {
872: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
873: }
874: }
875: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
876: /^correct/ ) {
877: #delete all data as they student already has it correct
878: &removealldata($id);
879: #and since they didn't do anything we were never here
880: return '';
881: }
882: $Apache::lonhomework::results{"resource.$id.award"} = $award;
883: if ($award eq 'SUBMITTED') {
884: &Apache::response::add_to_gradingqueue();
885: }
886: }
887:
888: sub grade {
889: my ($target) = @_;
890: my $id = $Apache::inputtags::part;
891: my $response='';
892: if ( defined $env{'form.submitted'}) {
893: my (@awards,@msgs);
894: foreach $response (@Apache::inputtags::response) {
895: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
896: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
897: &Apache::lonxml::debug("keeping $value from $response for $id");
898: push (@awards,$value);
899: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
900: &Apache::lonxml::debug("got message $value from $response for $id");
901: push (@msgs,$value);
902: }
903: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
904: my $previously_used;
905: if ( $#Apache::inputtags::previous eq $#awards ) {
906: my $match=0;
907: my @matches;
908: foreach my $versionar (@Apache::inputtags::previous_version) {
909: foreach my $version (@$versionar) {
910: $matches[$version]++;
911: }
912: }
913: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
914: if ($match) {
915: $previously_used = 'PREVIOUSLY_LAST';
916: foreach my $value (@Apache::inputtags::previous) {
917: if ($value eq 'PREVIOUSLY_USED' ) {
918: $previously_used = $value;
919: last;
920: }
921: }
922: }
923: }
924: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
925: &setgradedata($finalaward,$msg,$id,$previously_used);
926: }
927: return '';
928: }
929:
930: sub gradestatus {
931: my ($id,$target) = @_;
932: my $showbutton = 1;
933: my $bgcolor = '';
934: my $message = '';
935: my $latemessage = '';
936: my $trystr='';
937: my $button='';
938: my $previousmsg='';
939:
940: my $status = $Apache::inputtags::status['-1'];
941: &Apache::lonxml::debug("gradestatus has :$status:");
942: if ( $status ne 'CLOSED'
943: && $status ne 'UNAVAILABLE'
944: && $status ne 'INVALID_ACCESS'
945: && $status ne 'NEEDS_CHECKIN'
946: && $status ne 'NOT_IN_A_SLOT') {
947: my $award = $Apache::lonhomework::history{"resource.$id.award"};
948: my $awarded = $Apache::lonhomework::history{"resource.$id.awarded"};
949: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
950: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
951: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
952: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
953: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
954: &Apache::lonxml::debug('Getting message');
955: ($showbutton,$bgcolor,$message,$previousmsg) =
956: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
957: $target);
958: if ($target eq 'tex') {
959: $message='\vskip 2 mm '.$message.' ';
960: } else {
961: $message="<td bgcolor=\"$bgcolor\">$message</td>";
962: if ($previousmsg) {
963: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
964: }
965: }
966: }
967: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
968: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
969: &Apache::lonxml::debug("got maxtries of :$maxtries:");
970: #if tries are set to negative turn off the Tries/Button and messages
971: if (defined($maxtries) && $maxtries < 0) { return ''; }
972: if ( $tries eq '' ) { $tries = '0'; }
973: if ( $maxtries eq '' ) { $maxtries = '2'; }
974: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
975: my $tries_text=&mt('Tries');
976: if ( $Apache::lonhomework::type eq 'survey' ||
977: $Apache::lonhomework::parsing_a_task) {
978: $tries_text=&mt('Submissions');
979: }
980: if ( $showbutton ) {
981: if ($target eq 'tex') {
982: if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
983: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
984: } else {
985: $trystr = '\vskip 0 mm ';
986: }
987: } else {
988: $trystr = "<td><nobr>".$tries_text." $tries";
989: if ($Apache::lonhomework::parsing_a_task) {
990: } elsif($env{'request.state'} ne 'construct') {
991: $trystr.="/$maxtries";
992: } else {
993: if (defined($Apache::inputtags::params{'maxtries'})) {
994: $trystr.="/".$Apache::inputtags::params{'maxtries'};
995: }
996: }
997: $trystr.="</nobr></td>";
998: }
999: }
1000: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
1001: if ( $showbutton ) {
1002: if ($target ne 'tex') {
1003: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
1004: }
1005: }
1006: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
1007: #last submissions was after due date
1008: $latemessage=&mt(' The last submission was after the Due Date ');;
1009: if ($target eq 'web') {
1010: $latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
1011: }
1012: }
1013: }
1014: my $output= $previousmsg.$latemessage.$message.$trystr;
1015: if ($output =~ /^\s*$/) {
1016: return $button;
1017: } else {
1018: if ($target eq 'tex') {
1019: return $button.' \vskip 0 mm '.$output.' ';
1020: } else {
1021: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
1022: }
1023: }
1024: }
1025: 1;
1026: __END__
1027:
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