1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.178 2005/11/03 17:44:15 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)=@_;
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);
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);
166: }
167: } elsif ($target eq 'grade') {
168: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
169: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
170: # if the seed text is still there it wasn't a real submission
171: $env{'form.HWVAL_'.$resid}='';
172: }
173: } elsif ($target eq 'edit') {
174: $result.=&Apache::edit::tag_start($target,$token);
175: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
176: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
177: $result.=&Apache::edit::text_arg
178: ('Click-On Texts (comma sep):','addchars',$token,10);
179: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
180: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
181: } elsif ($target eq 'modified') {
182: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
183: $safeeval,'rows','cols',
184: 'addchars');
185: if ($constructtag) {
186: $result = &Apache::edit::rebuild_tag($token);
187: } else {
188: $result=$token->[4];
189: }
190: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
191: } elsif ($target eq 'tex') {
192: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
193: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
194: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
195: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
196: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
197: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
198: } else {
199: my $TeXwidth=$width_of_box/80;
200: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
201: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
202: $result.='}}}\vskip 2 mm ';
203: }
204: }
205: return $result;
206: }
207:
208: sub end_textfield {
209: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
210: my $result;
211: if ($target eq 'web') {
212: $Apache::lonxml::evaluate++;
213: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
214: return "</textarea>";
215: }
216: } elsif ($target eq 'edit') {
217: $result=&Apache::edit::end_table();
218: }
219: &end_input;
220: return $result;
221: }
222:
223: sub start_textline {
224: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
225: my $result = "";
226: if ($target eq 'web') {
227: $Apache::lonxml::evaluate--;
228: my $partid=$Apache::inputtags::part;
229: my $id=$Apache::inputtags::response[-1];
230: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
231: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
232: my $maxlength;
233: if ($size eq '') { $size=20; } else {
234: if ($size < 20) { $maxlength=$size; }
235: }
236: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
237: if ($Apache::lonhomework::type ne 'exam') {
238: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
239: $result='';
240: if ($addchars) {
241: $result.=&addchars('HWVAL_'.$id,$addchars);
242: }
243: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
244: $safeeval);
245: if (lc($readonly) eq 'yes') {
246: $readonly=' readonly="readonly" ';
247: } else {
248: $readonly='';
249: }
250: $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
251: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
252: }
253: } else {
254: #right or wrong don't show what was last typed in.
255: $result='<b>'.$Apache::inputtags::answertxt{$id}.'</b>';
256: #$result='';
257: }
258: } elsif ($target eq 'edit') {
259: $result=&Apache::edit::tag_start($target,$token);
260: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
261: &Apache::edit::text_arg('Click-On Texts (comma sep):',
262: 'addchars',$token,10);
263: $result.=&Apache::edit::select_arg('Readonly:','readonly',
264: ['no','yes'],$token);
265: $result.=&Apache::edit::end_row();
266: $result.=&Apache::edit::end_table();
267: } elsif ($target eq 'modified') {
268: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
269: $safeeval,'size',
270: 'addchars','readonly');
271: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
272: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
273: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
274: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
275: $result='\framebox['.$size.'][s]{\tiny\strut}';
276: }
277: return $result;
278: }
279:
280: sub end_textline {
281: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
282: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
283: elsif ($target eq 'edit') { return ('','no'); }
284: return "";
285: }
286:
287: sub start_hiddenline {
288: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
289: my $result = "";
290: if ($target eq 'web') {
291: $Apache::lonxml::evaluate--;
292: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
293: my $partid=$Apache::inputtags::part;
294: my $id=$Apache::inputtags::response[-1];
295: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
296: if ($Apache::lonhomework::type ne 'exam') {
297: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
298: $oldresponse.'" />';
299: }
300: }
301: } elsif ($target eq 'edit') {
302: $result=&Apache::edit::tag_start($target,$token);
303: $result.=&Apache::edit::end_table;
304: }
305: return $result;
306: }
307:
308: sub end_hiddenline {
309: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
310: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
311: elsif ($target eq 'edit') { return ('','no'); }
312: return "";
313: }
314:
315: # $part -> partid
316: # $id -> responseid
317: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
318: # $which -> 'uploadedonly' -> only newly uploaded files
319: # 'portfolioonly' -> only allow files from portfolio
320: # 'both' -> allow files from either location
321: # $extratext -> additional text to go between the link and the input box
322: # returns a table row <tr>
323: sub file_selector {
324: my ($part,$id,$uploadedfiletypes,$which,$extratext)=@_;
325: if (!$uploadedfiletypes) { return ''; }
326:
327: my $jspart=$part;
328: $jspart=~s/\./_/g;
329:
330: my $result;
331:
332: $result.='<tr><td>';
333: if ($uploadedfiletypes ne '*') {
334: $result.=
335: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
336: }
337: if ($which eq 'uploadonly' || $which eq 'both') {
338: $result.=&mt('Submit a file: (only one file can be uploaded)').
339: ' <br /><input type="file" size="50" name="HWFILE'.
340: $jspart.'_'.$id.'" /><br />';
341: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
342:
343: if ($uploadedfile) {
344: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
345: &Apache::lonxml::extlink($url);
346: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
347: my $icon=&Apache::loncommon::icon($url);
348: my $curfile='<a href="'.$url.'"><img src="'.$icon.
349: '" border="0" />'.$uploadedfile.'</a>';
350: $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
351: } else {
352: #$result.=&mt('(Hand in a file you have prepared on your computer)');
353: }
354: }
355: if ( $which eq 'both') {
356: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
357: }
358: if ($which eq 'portfolioonly' || $which eq 'both') {
359: $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"))'."'".'>'.
360: &mt('Select Portfolio Files').'</a><br />'.
361: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
362: '<br />';
363: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
364: my @filelist;
365: foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
366: my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
367: my $url="/uploaded/$domain/$user/portfolio$file";
368: my $icon=&Apache::loncommon::icon($url);
369: push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
370: '" border="0" />'.$file.'</a>');
371: }
372: $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
373: }
374: }
375: $result.='</td></tr>';
376: return $result;
377: }
378:
379: sub checkstatus {
380: my ($value,$awardref,$msgref)=@_;
381: for (my $i=0;$i<=$#$awardref;$i++) {
382: if ($$awardref[$i] eq $value) {
383: return ($$awardref[$i],$$msgref[$i]);
384: }
385: }
386: return(undef,undef);
387: }
388:
389: sub finalizeawards {
390: my ($awardref,$msgref)=@_;
391: my $result=undef;
392: my $award;
393: my $msg;
394: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
395: if ($result eq '' ) {
396: my $blankcount;
397: foreach $award (@$awardref) {
398: if ($award eq '') {
399: $result='MISSING_ANSWER';
400: $blankcount++;
401: }
402: }
403: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
404: }
405: if (defined($result)) { return ($result,$msg); }
406: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
407: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
408: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
409: 'UNIT_FAIL', 'NO_UNIT',
410: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
411: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
412: 'MISORDERED_RANK', 'INVALID_FILETYPE',
413: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
414: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
415: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
416: if (defined($result)) { return ($result,$msg); }
417: }
418: return ('ERROR',undef);
419: }
420:
421: sub decideoutput {
422: my ($award,$awarded,$awardmsg,$solved,$previous,$target)=@_;
423: my $message='';
424: my $button=0;
425: my $previousmsg;
426: my $bgcolor='orange';
427: my $added_computer_text=0;
428: my %possiblecolors =
429: ( 'correct' => '#aaffaa',
430: 'charged_try' => '#ffaaaa',
431: 'not_charged_try' => '#ffffaa',
432: 'no_message' => '#fffff',
433: );
434:
435: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
436:
437: if ($solved =~ /^correct/) {
438: $bgcolor=$possiblecolors{'correct'};
439: $message=&mt('You are correct.');
440: if ($awarded < 1 && $awarded > 0) {
441: $message=&mt('You are partially correct.');
442: $bgcolor=$possiblecolors{'not_charged_try'};
443: } elsif ($awarded < 1) {
444: $message=&mt('Incorrect.');
445: $bgcolor=$possiblecolors{'charged_try'};
446: }
447: if ($env{'request.filename'} =~
448: m|/res/lib/templates/examupload.problem$|) {
449: $message = &mt("A score has been assigned.");
450: $added_computer_text=1;
451: } else {
452: if ($target eq 'tex') {
453: $message = '\textbf{'.$message.'}';
454: } else {
455: $message = "<b>".$message."</b>";
456: $message.=" ".&mt("Computer's answer now shown above.");
457: }
458: $added_computer_text=1;
459: unless ($env{'course.'.
460: $env{'request.course.id'}.
461: '.disable_receipt_display'} eq 'yes') {
462: $message.=(($target eq 'web')?'<br />':' ').
463: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
464: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
465: }
466: }
467: $button=0;
468: $previousmsg='';
469: } elsif ($solved =~ /^excused/) {
470: if ($target eq 'tex') {
471: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
472: } else {
473: $message = "<b>".&mt('You are excused from the problem.')."</b>";
474: }
475: $bgcolor=$possiblecolors{'charged_try'};
476: $button=0;
477: $previousmsg='';
478: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
479: if ($solved =~ /^incorrect/ || $solved eq '') {
480: $message = &mt("Incorrect").".";
481: $bgcolor=$possiblecolors{'charged_try'};
482: $button=1;
483: } else {
484: if ($target eq 'tex') {
485: $message = '\textbf{'.&mt('You are correct.').'}';
486: } else {
487: $message = "<b>".&mt('You are correct.')."</b>";
488: $message.=" ".&mt("Computer's answer now shown above.");
489: }
490: $added_computer_text=1;
491: unless ($env{'course.'.
492: $env{'request.course.id'}.
493: '.disable_receipt_display'} eq 'yes') {
494: $message.=(($target eq 'web')?'<br />':' ').
495: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
496: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
497: }
498: $bgcolor=$possiblecolors{'correct'};
499: $button=0;
500: $previousmsg='';
501: }
502: } elsif ($award eq 'NO_RESPONSE') {
503: $message = '';
504: $bgcolor=$possiblecolors{'no_feedback'};
505: $button=1;
506: } elsif ($award eq 'MISSING_ANSWER') {
507: $message = &mt('Some items were not submitted.');
508: $bgcolor=$possiblecolors{'not_charged_try'};
509: $button = 1;
510: } elsif ($award eq 'ERROR') {
511: $message = &mt('An error occured while grading your answer.');
512: $bgcolor=$possiblecolors{'not_charged_try'};
513: $button = 1;
514: } elsif ($award eq 'TOO_LONG') {
515: $message = &mt("The submitted answer was too long.");
516: $bgcolor=$possiblecolors{'not_charged_try'};
517: $button=1;
518: } elsif ($award eq 'WANTED_NUMERIC') {
519: $message = &mt("This question expects a numeric answer.");
520: $bgcolor=$possiblecolors{'not_charged_try'};
521: $button=1;
522: } elsif ($award eq 'MISORDERED_RANK') {
523: $message = &mt('You have provided an invalid ranking');
524: if ($target ne 'tex') {
525: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
526: }
527: $bgcolor=$possiblecolors{'not_charged_try'};
528: $button=1;
529: } elsif ($award eq 'INVALID_FILETYPE') {
530: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
531: $bgcolor=$possiblecolors{'not_charged_try'};
532: $button=1;
533: } elsif ($award eq 'SIG_FAIL') {
534: my ($used,$min,$max)=split(':',$awardmsg);
535: my $word;
536: if ($used < $min) { $word=&mt('more'); }
537: if ($used > $max) { $word=&mt('fewer'); }
538: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
539: $bgcolor=$possiblecolors{'not_charged_try'};
540: $button=1;
541: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
542: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
543: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
544: $bgcolor=$possiblecolors{'not_charged_try'};
545: $button=1;
546: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
547: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
548: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
549: $bgcolor=$possiblecolors{'not_charged_try'};
550: $button=1;
551: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
552: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
553: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
554: $bgcolor=$possiblecolors{'not_charged_try'};
555: $button=1;
556: } elsif ($award eq 'UNIT_NOTNEEDED') {
557: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
558: $bgcolor=$possiblecolors{'not_charged_try'};
559: $button=1;
560: } elsif ($award eq 'NO_UNIT') {
561: $message = &mt("Units required").'.';
562: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
563: $bgcolor=$possiblecolors{'not_charged_try'};
564: $button=1;
565: } elsif ($award eq 'COMMA_FAIL') {
566: $message = &mt("Proper comma separation is required").'.';
567: $bgcolor=$possiblecolors{'not_charged_try'};
568: $button=1;
569: } elsif ($award eq 'BAD_FORMULA') {
570: $message = &mt("Unable to understand formula");
571: $bgcolor=$possiblecolors{'not_charged_try'};
572: $button=1;
573: } elsif ($award eq 'INCORRECT') {
574: $message = &mt("Incorrect").'.';
575: $bgcolor=$possiblecolors{'charged_try'};
576: $button=1;
577: } elsif ($award eq 'SUBMITTED') {
578: $message = &mt("Your submission has been recorded.");
579: $bgcolor=$possiblecolors{'correct'};
580: $button=1;
581: } elsif ($award eq 'DRAFT') {
582: $message = &mt("A draft copy has been saved.");
583: $bgcolor=$possiblecolors{'not_charged_try'};
584: $button=1;
585: } elsif ($award eq 'ASSIGNED_SCORE') {
586: $message = &mt("A score has been assigned.");
587: $bgcolor=$possiblecolors{'correct'};
588: $button=0;
589: } elsif ($award eq '') {
590: $bgcolor=$possiblecolors{'not_charged_try'};
591: $button=1;
592: } else {
593: $message = &mt("Unknown message").": $award";
594: $button=1;
595: }
596: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
597: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
598: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
599: $bgcolor=$possiblecolors{'correct'};
600: $button=1;
601: }
602: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
603: !$added_computer_text && $target ne 'tex') {
604: $message.=" ".&mt("Computer's answer now shown above.");
605: $added_computer_text=1;
606: }
607: return ($button,$bgcolor,$message,$previousmsg);
608: }
609:
610: sub markup_unit {
611: my ($unit,$target)=@_;
612: if ($target eq 'tex') {
613: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
614: } else {
615: return "<tt>".$unit."</tt>";
616: }
617: }
618:
619: sub removealldata {
620: my ($id)=@_;
621: foreach my $key (keys(%Apache::lonhomework::results)) {
622: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
623: &Apache::lonxml::debug("Removing $key");
624: delete($Apache::lonhomework::results{$key});
625: }
626: }
627: }
628:
629: sub hidealldata {
630: my ($id)=@_;
631: foreach my $key (keys(%Apache::lonhomework::results)) {
632: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
633: &Apache::lonxml::debug("Hidding $key");
634: my $newkey=$key;
635: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
636: $Apache::lonhomework::results{$newkey}=
637: $Apache::lonhomework::results{$key};
638: delete($Apache::lonhomework::results{$key});
639: }
640: }
641: }
642:
643: sub setgradedata {
644: my ($award,$msg,$id,$previously_used) = @_;
645: if ($Apache::lonhomework::scantronmode &&
646: &Apache::lonnet::validCODE($env{'form.CODE'})) {
647: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
648: } elsif ($Apache::lonhomework::scantronmode &&
649: $env{'form.CODE'} eq '' &&
650: $Apache::lonhomework::history{"resource.CODE"} ne '') {
651: $Apache::lonhomework::results{"resource.CODE"}='';
652: }
653:
654: if (!$Apache::lonhomework::scantronmode &&
655: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
656: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
657: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
658: return '';
659: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
660: /^correct/ || $Apache::lonhomework::scantronmode ||
661: lc($Apache::lonhomework::problemstatus) eq 'no') {
662: # the student doesn't already have it correct,
663: # or we are in a mode (scantron orno problem status) where a correct
664: # can become incorrect
665: # handle assignment of tries and solved status
666: my $solvemsg;
667: if ($Apache::lonhomework::scantronmode) {
668: $solvemsg='correct_by_scantron';
669: } else {
670: $solvemsg='correct_by_student';
671: }
672: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
673: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
674: }
675: if ( $award eq 'ASSIGNED_SCORE') {
676: $Apache::lonhomework::results{"resource.$id.tries"} =
677: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
678: $Apache::lonhomework::results{"resource.$id.solved"} =
679: $solvemsg;
680: my $numawards=scalar(@Apache::inputtags::response);
681: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
682: foreach my $res (@Apache::inputtags::response) {
683: $Apache::lonhomework::results{"resource.$id.awarded"}+=
684: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
685: }
686: if ($numawards > 0) {
687: $Apache::lonhomework::results{"resource.$id.awarded"}/=
688: $numawards;
689: }
690: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
691: $Apache::lonhomework::results{"resource.$id.tries"} =
692: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
693: $Apache::lonhomework::results{"resource.$id.solved"} =
694: $solvemsg;
695: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
696: } elsif ( $award eq 'INCORRECT' ) {
697: $Apache::lonhomework::results{"resource.$id.tries"} =
698: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
699: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
700: $Apache::lonhomework::scantronmode) {
701: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
702: }
703: $Apache::lonhomework::results{"resource.$id.solved"} =
704: 'incorrect_attempted';
705: } elsif ( $award eq 'SUBMITTED' ) {
706: $Apache::lonhomework::results{"resource.$id.tries"} =
707: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
708: $Apache::lonhomework::results{"resource.$id.solved"} =
709: 'ungraded_attempted';
710: } elsif ( $award eq 'DRAFT' ) {
711: $Apache::lonhomework::results{"resource.$id.solved"} = '';
712: } elsif ( $award eq 'NO_RESPONSE' ) {
713: #no real response so delete any data that got stored
714: &removealldata($id);
715: return '';
716: } else {
717: $Apache::lonhomework::results{"resource.$id.solved"} =
718: 'incorrect_attempted';
719: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
720: $Apache::lonhomework::scantronmode) {
721: $Apache::lonhomework::results{"resource.$id.tries"} =
722: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
723: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
724: }
725: }
726: if (defined($msg)) {
727: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
728: }
729: # did either of the overall awards chage? If so ignore the
730: # previous check
731: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
732: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
733: ($Apache::lonhomework::results{"resource.$id.solved"} eq
734: $Apache::lonhomework::history{"resource.$id.solved"})) {
735: # check if this was a previous submission if it was delete the
736: # unneeded data and update the previously_used attribute
737: if ( $previously_used eq 'PREVIOUSLY_USED') {
738: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
739: delete($Apache::lonhomework::results{"resource.$id.tries"});
740: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
741: }
742: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
743: #delete all data as they student didn't do anything, but save
744: #the list of collaborators.
745: &removealldata($id);
746: #and since they didn't do anything we were never here
747: return '';
748: } else {
749: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
750: }
751: }
752: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
753: /^correct/ ) {
754: #delete all data as they student already has it correct
755: &removealldata($id);
756: #and since they didn't do anything we were never here
757: return '';
758: }
759: $Apache::lonhomework::results{"resource.$id.award"} = $award;
760: }
761:
762: sub grade {
763: my ($target) = @_;
764: my $id = $Apache::inputtags::part;
765: my $response='';
766: if ( defined $env{'form.submitted'}) {
767: my (@awards,@msgs);
768: foreach $response (@Apache::inputtags::response) {
769: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
770: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
771: &Apache::lonxml::debug("keeping $value from $response for $id");
772: push (@awards,$value);
773: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
774: &Apache::lonxml::debug("got message $value from $response for $id");
775: push (@msgs,$value);
776: }
777: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
778: my $previously_used;
779: if ( $#Apache::inputtags::previous eq $#awards ) {
780: my $match=0;
781: my @matches;
782: foreach my $versionar (@Apache::inputtags::previous_version) {
783: foreach my $version (@$versionar) {
784: $matches[$version]++;
785: }
786: }
787: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
788: if ($match) {
789: $previously_used = 'PREVIOUSLY_LAST';
790: foreach my $value (@Apache::inputtags::previous) {
791: if ($value eq 'PREVIOUSLY_USED' ) {
792: $previously_used = $value;
793: last;
794: }
795: }
796: }
797: }
798: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
799: &setgradedata($finalaward,$msg,$id,$previously_used);
800: }
801: return '';
802: }
803:
804: sub gradestatus {
805: my ($id,$target) = @_;
806: my $showbutton = 1;
807: my $bgcolor = '';
808: my $message = '';
809: my $latemessage = '';
810: my $trystr='';
811: my $button='';
812: my $previousmsg='';
813:
814: my $status = $Apache::inputtags::status['-1'];
815: &Apache::lonxml::debug("gradestatus has :$status:");
816: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
817: $status ne 'INVALID_ACCESS') {
818: my $award = $Apache::lonhomework::history{"resource.$id.award"};
819: my $awarded = $Apache::lonhomework::history{"resource.$id.awarded"};
820: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
821: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
822: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
823: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
824: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
825: &Apache::lonxml::debug('Getting message');
826: ($showbutton,$bgcolor,$message,$previousmsg) =
827: &decideoutput($award,$awarded,$awardmsg,$solved,$previous,
828: $target);
829: if ($target eq 'tex') {
830: $message='\vskip 2 mm '.$message.' ';
831: } else {
832: $message="<td bgcolor=\"$bgcolor\">$message</td>";
833: if ($previousmsg) {
834: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
835: }
836: }
837: }
838: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
839: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
840: &Apache::lonxml::debug("got maxtries of :$maxtries:");
841: #if tries are set to negative turn off the Tries/Button and messages
842: if (defined($maxtries) && $maxtries < 0) { return ''; }
843: if ( $tries eq '' ) { $tries = '0'; }
844: if ( $maxtries eq '' ) { $maxtries = '2'; }
845: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
846: my $tries_text=&mt('Tries');
847: if ( $Apache::lonhomework::type eq 'survey' ||
848: $Apache::lonhomework::parsing_a_task) {
849: $tries_text=&mt('Submissions');
850: }
851: if ( $showbutton ) {
852: if ($target eq 'tex') {
853: if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
854: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
855: } else {
856: $trystr = '\vskip 0 mm ';
857: }
858: } else {
859: $trystr = "<td><nobr>".$tries_text." $tries";
860: if ($Apache::lonhomework::parsing_a_task) {
861: } elsif($env{'request.state'} ne 'construct') {
862: $trystr.="/$maxtries";
863: } else {
864: if (defined($Apache::inputtags::params{'maxtries'})) {
865: $trystr.="/".$Apache::inputtags::params{'maxtries'};
866: }
867: }
868: $trystr.="</nobr></td>";
869: }
870: }
871: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
872: if ( $showbutton ) {
873: if ($target ne 'tex') {
874: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
875: }
876: }
877: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
878: #last submissions was after due date
879: $latemessage=&mt(' The last submission was after the Due Date ');;
880: if ($target eq 'web') {
881: $latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
882: }
883: }
884: }
885: my $output= $previousmsg.$latemessage.$message.$trystr;
886: if ($output =~ /^\s*$/) {
887: return $button;
888: } else {
889: if ($target eq 'tex') {
890: return $button.' \vskip 0 mm '.$output.' ';
891: } else {
892: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
893: }
894: }
895: }
896: 1;
897: __END__
898:
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