1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.160 2005/03/31 21:24:29 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:
34: BEGIN {
35: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
36: }
37:
38:
39: sub initialize_inputtags {
40: # list of current input ids
41: @Apache::inputtags::input=();
42: # list of all input ids seen in this problem
43: @Apache::inputtags::inputlist=();
44: # list of all current response ids
45: @Apache::inputtags::response=();
46: # list of all response ids seen in this problem
47: @Apache::inputtags::responselist=();
48: # list of whether or not a specific response was previously used
49: @Apache::inputtags::previous=();
50: # submission it was used in
51: @Apache::inputtags::previous_version=();
52: # id of current part, 0 means that no part is current
53: # (inside <problem> only
54: $Apache::inputtags::part='';
55: # list of all part ids seen
56: @Apache::inputtags::partlist=();
57: # list of problem date statuses, the first element is for <problem>
58: # if there is a second element it is for the current <part>
59: @Apache::inputtags::status=();
60: # hash of defined params for the current response
61: %Apache::inputtags::params=();
62: # list of all ids, for <import>, these get join()ed and prepended
63: @Apache::inputtags::import=();
64: # list of all import ids seen
65: @Apache::inputtags::importlist=();
66: # just used to note whether we have seen a response that isn't in a part
67: $Apache::inputtags::response_with_no_part=0;
68: # storage location so the begin <*response> tag can generate the correct
69: # answer string for display by the <textline />
70: %Apache::inputtags::answertxt=();
71: }
72:
73: sub check_for_duplicate_ids {
74: my %check;
75: foreach my $id (@Apache::inputtags::partlist,
76: @Apache::inputtags::responselist,
77: @Apache::inputtags::importlist) {
78: $check{$id}++;
79: }
80: my @duplicates;
81: foreach my $id (sort(keys(%check))) {
82: if ($check{$id} > 1) {
83: push(@duplicates,$id);
84: }
85: }
86: if (@duplicates) {
87: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
88: }
89: }
90:
91: sub start_input {
92: my ($parstack,$safeeval)=@_;
93: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
94: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
95: push (@Apache::inputtags::input,$id);
96: push (@Apache::inputtags::inputlist,$id);
97: return $id;
98: }
99:
100: sub end_input {
101: pop @Apache::inputtags::input;
102: return '';
103: }
104:
105: sub addchars {
106: my ($fieldid,$addchars)=@_;
107: my $output='';
108: foreach (split(/\,/,$addchars)) {
109: $output.='<a href="javascript:void(document.forms.lonhomework.'.
110: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
111: }
112: return $output;
113: }
114:
115: sub start_textfield {
116: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
117: my $result = "";
118: my $id = &start_input($parstack,$safeeval);
119: my $resid=$Apache::inputtags::response[-1];
120: if ($target eq 'web') {
121: $Apache::lonxml::evaluate--;
122: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
123: my $partid=$Apache::inputtags::part;
124: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
125: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
126: if ( $cols eq '') { $cols = 80; }
127: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
128: if ( $rows eq '') { $rows = 16; }
129: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
130: $result='';
131: if ($addchars) {
132: $result.=&addchars('HWVAL_'.$resid,$addchars);
133: }
134: push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
135: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
136: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
137: if ($oldresponse ne '') {
138:
139: #get rid of any startup text if the user has already responded
140: &Apache::lonxml::get_all_text("/textfield",$parser);
141: }
142: } else {
143: #right or wrong don't show it
144: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
145: $result='';
146: #get rid of any startup text
147: &Apache::lonxml::get_all_text("/textfield",$parser);
148: }
149: } elsif ($target eq 'grade') {
150: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
151: if ($seedtext eq $ENV{'form.HWVAL_'.$resid}) {
152: # if the seed text is still there it wasn't a real submission
153: $ENV{'form.HWVAL_'.$resid}='';
154: }
155: } elsif ($target eq 'edit') {
156: $result.=&Apache::edit::tag_start($target,$token);
157: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
158: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
159: $result.=&Apache::edit::text_arg
160: ('Click-On Texts (comma sep):','addchars',$token,10);
161: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
162: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
163: } elsif ($target eq 'modified') {
164: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
165: $safeeval,'rows','cols',
166: 'addchars');
167: if ($constructtag) {
168: $result = &Apache::edit::rebuild_tag($token);
169: } else {
170: $result=$token->[4];
171: }
172: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
173: } elsif ($target eq 'tex') {
174: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
175: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
176: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
177: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
178: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
179: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
180: } else {
181: my $TeXwidth=$width_of_box/80;
182: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
183: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
184: $result.='}}}\vskip 2 mm ';
185: }
186: }
187: return $result;
188: }
189:
190: sub end_textfield {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
192: my $result;
193: if ($target eq 'web') {
194: $Apache::lonxml::evaluate++;
195: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
196: return "</textarea>";
197: }
198: } elsif ($target eq 'edit') {
199: $result=&Apache::edit::end_table();
200: }
201: &end_input;
202: return $result;
203: }
204:
205: sub start_textline {
206: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
207: my $result = "";
208: if ($target eq 'web') {
209: $Apache::lonxml::evaluate--;
210: my $partid=$Apache::inputtags::part;
211: my $id=$Apache::inputtags::response[-1];
212: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
213: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
214: my $maxlength;
215: if ($size eq '') { $size=20; } else {
216: if ($size < 20) { $maxlength=$size; }
217: }
218: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
219: if ($Apache::lonhomework::type ne 'exam') {
220: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
221: $result='';
222: if ($addchars) {
223: $result.=&addchars('HWVAL_'.$id,$addchars);
224: }
225: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
226: $safeeval);
227: if (lc($readonly) eq 'yes') {
228: $readonly=' readonly="readonly" ';
229: } else {
230: $readonly='';
231: }
232: $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
233: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
234: }
235: } else {
236: #right or wrong don't show what was last typed in.
237: $result='<i>'.$Apache::inputtags::answertxt{$id}.'</i>';
238: #$result='';
239: }
240: } elsif ($target eq 'edit') {
241: $result=&Apache::edit::tag_start($target,$token);
242: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
243: &Apache::edit::text_arg('Click-On Texts (comma sep):',
244: 'addchars',$token,10);
245: $result.=&Apache::edit::select_arg('Readonly:','readonly',
246: ['no','yes'],$token);
247: $result.=&Apache::edit::end_row();
248: $result.=&Apache::edit::end_table();
249: } elsif ($target eq 'modified') {
250: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
251: $safeeval,'size',
252: 'addchars','readonly');
253: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
254: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
255: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
256: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
257: $result='\framebox['.$size.'][s]{\tiny\strut}';
258: }
259: return $result;
260: }
261:
262: sub end_textline {
263: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
264: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
265: elsif ($target eq 'edit') { return ('','no'); }
266: return "";
267: }
268:
269: sub start_hiddenline {
270: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
271: my $result = "";
272: if ($target eq 'web') {
273: $Apache::lonxml::evaluate--;
274: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
275: my $partid=$Apache::inputtags::part;
276: my $id=$Apache::inputtags::response[-1];
277: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
278: if ($Apache::lonhomework::type ne 'exam') {
279: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
280: $oldresponse.'" />';
281: }
282: }
283: } elsif ($target eq 'edit') {
284: $result=&Apache::edit::tag_start($target,$token);
285: $result.=&Apache::edit::end_table;
286: }
287: return $result;
288: }
289:
290: sub end_hiddenline {
291: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
292: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
293: elsif ($target eq 'edit') { return ('','no'); }
294: return "";
295: }
296:
297: # $part -> partid
298: # $id -> responseid
299: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
300: # $which -> 'uploadedonly' -> only newly uploaded files
301: # 'portfolioonly' -> only allow files from portfolio
302: # 'both' -> allow files from either location
303: # returns a table row <tr>
304: sub file_selector {
305: my ($part,$id,$uploadedfiletypes,$which)=@_;
306: if (!$uploadedfiletypes) { return ''; }
307: my $result;
308:
309: $result.='<tr><td>'.
310: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
311: if ($which eq 'uploadonly' || $which eq 'both') {
312: $result.=&mt('Submit a file: (only one file can be uploaded)').
313: ' <br /><input type="file" size="50" name="HWFILE'.
314: $part.'_'.$id.'" /><br />';
315: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
316:
317: if ($uploadedfile) {
318: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
319: push (@Apache::lonxml::extlinks,$url);
320: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
321: my $icon=&Apache::loncommon::icon($url);
322: my $curfile='<a href="'.$url.'"><img src="'.$icon.
323: '" border="0" />'.$uploadedfile.'</a>';
324: $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
325: } else {
326: #$result.=&mt('(Hand in a file you have prepared on your computer)');
327: }
328: }
329: if ( $which eq 'both') {
330: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
331: }
332: if ($which eq 'portfolioonly' || $which eq 'both') {
333: $result.='<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname=HWPORT'.$part.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
334: &mt('Select Portfolio Files').'</a><br />'.
335: '<input type="text" size="50" name="HWPORT'.$part.'_'.$id.'" value="" />'.
336: '<br />';
337: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
338: my $filelist;
339: foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
340: my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
341: my $url="/uploaded/$domain/$user/portfolio$file";
342: my $icon=&Apache::loncommon::icon($url);
343: $filelist.='<a href="'.$url.'"><img src="'.$icon.
344: '" border="0" />'.$file.'</a>';
345: }
346: $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",$filelist);
347: }
348: }
349: $result.='</td></tr>';
350: return $result;
351: }
352:
353: sub checkstatus {
354: my ($value,$awardref,$msgref)=@_;
355: for (my $i=0;$i<=$#$awardref;$i++) {
356: if ($$awardref[$i] eq $value) {
357: return ($$awardref[$i],$$msgref[$i]);
358: }
359: }
360: return(undef,undef);
361: }
362:
363: sub finalizeawards {
364: my ($awardref,$msgref)=@_;
365: my $result=undef;
366: my $award;
367: my $msg;
368: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
369: if ($result eq '' ) {
370: my $blankcount;
371: foreach $award (@$awardref) {
372: if ($award eq '') {
373: $result='MISSING_ANSWER';
374: $blankcount++;
375: }
376: }
377: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
378: }
379: if (defined($result)) { return ($result,$msg); }
380: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
381: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
382: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
383: 'UNIT_FAIL', 'NO_UNIT',
384: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
385: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
386: 'MISORDERED_RANK', 'INVALID_FILETYPE',
387: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
388: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
389: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
390: if (defined($result)) { return ($result,$msg); }
391: }
392: return ('ERROR',undef);
393: }
394:
395: sub decideoutput {
396: my ($award,$awardmsg,$solved,$previous,$target)=@_;
397: my $message='';
398: my $button=0;
399: my $previousmsg;
400: my $bgcolor='orange';
401: my $added_computer_text=0;
402: my %possiblecolors =
403: ( 'correct' => '#aaffaa',
404: 'charged_try' => '#ffaaaa',
405: 'not_charged_try' => '#ffffaa',
406: 'no_message' => '#fffff',
407: );
408: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
409:
410: if ($solved =~ /^correct/) {
411: if ($award eq 'ASSIGNED_SCORE') {
412: $message = &mt("A score has been assigned.");
413: } else {
414: if ($target eq 'tex') {
415: $message = '\textbf{'.&mt('You are correct.').'}';
416: } else {
417: $message = "<b>".&mt('You are correct.')."</b>";
418: $message.=" ".&mt("Computer's answer now shown above.");
419: }
420: $added_computer_text=1;
421: unless ($ENV{'course.'.
422: $ENV{'request.course.id'}.
423: '.disable_receipt_display'} eq 'yes') {
424: $message.=(($target eq 'web')?'<br />':' ').
425: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
426: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
427: }
428: }
429: $bgcolor=$possiblecolors{'correct'};
430: $button=0;
431: $previousmsg='';
432: } elsif ($solved =~ /^excused/) {
433: if ($target eq 'tex') {
434: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
435: } else {
436: $message = "<b>".&mt('You are excused from the problem.')."</b>";
437: }
438: $bgcolor=$possiblecolors{'charged_try'};
439: $button=0;
440: $previousmsg='';
441: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
442: if ($solved =~ /^incorrect/ || $solved eq '') {
443: $message = &mt("Incorrect").".";
444: $bgcolor=$possiblecolors{'charged_try'};
445: $button=1;
446: } else {
447: if ($target eq 'tex') {
448: $message = '\textbf{'.&mt('You are correct.').'}';
449: } else {
450: $message = "<b>".&mt('You are correct.')."</b>";
451: $message.=" ".&mt("Computer's answer now shown above.");
452: }
453: $added_computer_text=1;
454: unless ($ENV{'course.'.
455: $ENV{'request.course.id'}.
456: '.disable_receipt_display'} eq 'yes') {
457: $message.=(($target eq 'web')?'<br />':' ').
458: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
459: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
460: }
461: $bgcolor=$possiblecolors{'correct'};
462: $button=0;
463: $previousmsg='';
464: }
465: } elsif ($award eq 'NO_RESPONSE') {
466: $message = '';
467: $bgcolor=$possiblecolors{'no_feedback'};
468: $button=1;
469: } elsif ($award eq 'MISSING_ANSWER') {
470: $message = &mt('Some items were not submitted.');
471: $bgcolor=$possiblecolors{'not_charged_try'};
472: $button = 1;
473: } elsif ($award eq 'ERROR') {
474: $message = &mt('An error occured while grading your answer.');
475: $bgcolor=$possiblecolors{'not_charged_try'};
476: $button = 1;
477: } elsif ($award eq 'TOO_LONG') {
478: $message = &mt("The submitted answer was too long.");
479: $bgcolor=$possiblecolors{'not_charged_try'};
480: $button=1;
481: } elsif ($award eq 'WANTED_NUMERIC') {
482: $message = &mt("This question expects a numeric answer.");
483: $bgcolor=$possiblecolors{'not_charged_try'};
484: $button=1;
485: } elsif ($award eq 'MISORDERED_RANK') {
486: $message = &mt('You have provided an invalid ranking');
487: if ($target ne 'tex') {
488: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
489: }
490: $bgcolor=$possiblecolors{'not_charged_try'};
491: $button=1;
492: } elsif ($award eq 'INVALID_FILETYPE') {
493: $message = &mt('The filetype extension of the file you uploaded is not allowed.');
494: $bgcolor=$possiblecolors{'not_charged_try'};
495: $button=1;
496: } elsif ($award eq 'SIG_FAIL') {
497: my ($used,$min,$max)=split(':',$awardmsg);
498: my $word;
499: if ($used < $min) { $word=&mt('more'); }
500: if ($used > $max) { $word=&mt('fewer'); }
501: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
502: $bgcolor=$possiblecolors{'not_charged_try'};
503: $button=1;
504: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
505: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
506: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
507: $bgcolor=$possiblecolors{'not_charged_try'};
508: $button=1;
509: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
510: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
511: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
512: $bgcolor=$possiblecolors{'not_charged_try'};
513: $button=1;
514: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
515: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
516: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
517: $bgcolor=$possiblecolors{'not_charged_try'};
518: $button=1;
519: } elsif ($award eq 'UNIT_NOTNEEDED') {
520: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
521: $bgcolor=$possiblecolors{'not_charged_try'};
522: $button=1;
523: } elsif ($award eq 'NO_UNIT') {
524: $message = &mt("Units required").'.';
525: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
526: $bgcolor=$possiblecolors{'not_charged_try'};
527: $button=1;
528: } elsif ($award eq 'COMMA_FAIL') {
529: $message = &mt("Proper comma separation is required").'.';
530: $bgcolor=$possiblecolors{'not_charged_try'};
531: $button=1;
532: } elsif ($award eq 'BAD_FORMULA') {
533: $message = &mt("Unable to understand formula");
534: $bgcolor=$possiblecolors{'not_charged_try'};
535: $button=1;
536: } elsif ($award eq 'INCORRECT') {
537: $message = &mt("Incorrect").'.';
538: $bgcolor=$possiblecolors{'charged_try'};
539: $button=1;
540: } elsif ($award eq 'SUBMITTED') {
541: $message = &mt("Your submission has been recorded.");
542: $bgcolor=$possiblecolors{'correct'};
543: $button=1;
544: } elsif ($award eq 'DRAFT') {
545: $message = &mt("A draft copy has been saved.");
546: $bgcolor=$possiblecolors{'not_charged_try'};
547: $button=1;
548: } elsif ($award eq 'ASSIGNED_SCORE') {
549: $message = &mt("A score has been assigned.");
550: $bgcolor=$possiblecolors{'correct'};
551: $button=0;
552: } elsif ($award eq '') {
553: $bgcolor=$possiblecolors{'not_charged_try'};
554: $button=1;
555: } else {
556: $message = &mt("Unknown message").": $award";
557: $button=1;
558: }
559: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
560: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
561: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
562: $bgcolor=$possiblecolors{'correct'};
563: $button=1;
564: }
565: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
566: !$added_computer_text && $target ne 'tex') {
567: $message.=" ".&mt("Computer's answer now shown above.");
568: $added_computer_text=1;
569: }
570: return ($button,$bgcolor,$message,$previousmsg);
571: }
572:
573: sub markup_unit {
574: my ($unit,$target)=@_;
575: if ($target eq 'tex') {
576: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
577: } else {
578: return "<tt>".$unit."</tt>";
579: }
580: }
581:
582: sub removealldata {
583: my ($id)=@_;
584: foreach my $key (keys(%Apache::lonhomework::results)) {
585: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
586: &Apache::lonxml::debug("Removing $key");
587: delete($Apache::lonhomework::results{$key});
588: }
589: }
590: }
591:
592: sub hidealldata {
593: my ($id)=@_;
594: foreach my $key (keys(%Apache::lonhomework::results)) {
595: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
596: &Apache::lonxml::debug("Hidding $key");
597: my $newkey=$key;
598: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
599: $Apache::lonhomework::results{$newkey}=
600: $Apache::lonhomework::results{$key};
601: delete($Apache::lonhomework::results{$key});
602: }
603: }
604: }
605:
606: sub setgradedata {
607: my ($award,$msg,$id,$previously_used) = @_;
608: if ($Apache::lonhomework::scantronmode &&
609: &Apache::lonnet::validCODE($ENV{'form.CODE'})) {
610: $Apache::lonhomework::results{"resource.CODE"}=$ENV{'form.CODE'};
611: } elsif ($Apache::lonhomework::scantronmode &&
612: $ENV{'form.CODE'} eq '' &&
613: $Apache::lonhomework::history{"resource.CODE"} ne '') {
614: $Apache::lonhomework::results{"resource.CODE"}='';
615: }
616:
617: if (!$Apache::lonhomework::scantronmode &&
618: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
619: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
620: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
621: return '';
622: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
623: /^correct/ || $Apache::lonhomework::scantronmode ||
624: lc($Apache::lonhomework::problemstatus) eq 'no') {
625: # the student doesn't already have it correct,
626: # or we are in a mode (scantron orno problem status) where a correct
627: # can become incorrect
628: # handle assignment of tries and solved status
629: my $solvemsg;
630: if ($Apache::lonhomework::scantronmode) {
631: $solvemsg='correct_by_scantron';
632: } else {
633: $solvemsg='correct_by_student';
634: }
635: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
636: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
637: }
638: if ( $award eq 'ASSIGNED_SCORE') {
639: $Apache::lonhomework::results{"resource.$id.tries"} =
640: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
641: $Apache::lonhomework::results{"resource.$id.solved"} =
642: $solvemsg;
643: my $numawards=scalar(@Apache::inputtags::response);
644: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
645: foreach my $res (@Apache::inputtags::response) {
646: $Apache::lonhomework::results{"resource.$id.awarded"}+=
647: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
648: }
649: if ($numawards > 0) {
650: $Apache::lonhomework::results{"resource.$id.awarded"}/=
651: $numawards;
652: }
653: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
654: $Apache::lonhomework::results{"resource.$id.tries"} =
655: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
656: $Apache::lonhomework::results{"resource.$id.solved"} =
657: $solvemsg;
658: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
659: } elsif ( $award eq 'INCORRECT' ) {
660: $Apache::lonhomework::results{"resource.$id.tries"} =
661: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
662: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
663: $Apache::lonhomework::scantronmode) {
664: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
665: }
666: $Apache::lonhomework::results{"resource.$id.solved"} =
667: 'incorrect_attempted';
668: } elsif ( $award eq 'SUBMITTED' ) {
669: $Apache::lonhomework::results{"resource.$id.tries"} =
670: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
671: $Apache::lonhomework::results{"resource.$id.solved"} =
672: 'ungraded_attempted';
673: } elsif ( $award eq 'DRAFT' ) {
674: $Apache::lonhomework::results{"resource.$id.solved"} = '';
675: } elsif ( $award eq 'NO_RESPONSE' ) {
676: #no real response so delete any data that got stored
677: &removealldata($id);
678: return '';
679: } else {
680: $Apache::lonhomework::results{"resource.$id.solved"} =
681: 'incorrect_attempted';
682: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
683: $Apache::lonhomework::scantronmode) {
684: $Apache::lonhomework::results{"resource.$id.tries"} =
685: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
686: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
687: }
688: }
689: if (defined($msg)) {
690: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
691: }
692: # did either of the overall awards chage? If so ignore the
693: # previous check
694: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
695: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
696: ($Apache::lonhomework::results{"resource.$id.solved"} eq
697: $Apache::lonhomework::history{"resource.$id.solved"})) {
698: # check if this was a previous submission if it was delete the
699: # unneeded data and update the previously_used attribute
700: if ( $previously_used eq 'PREVIOUSLY_USED') {
701: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
702: delete($Apache::lonhomework::results{"resource.$id.tries"});
703: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
704: }
705: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
706: #delete all data as they student didn't do anything, but save
707: #the list of collaborators.
708: &removealldata($id);
709: #and since they didn't do anything we were never here
710: return '';
711: } else {
712: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
713: }
714: }
715: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
716: /^correct/ ) {
717: #delete all data as they student already has it correct
718: &removealldata($id);
719: #and since they didn't do anything we were never here
720: return '';
721: }
722: $Apache::lonhomework::results{"resource.$id.award"} = $award;
723: }
724:
725: sub grade {
726: my ($target) = @_;
727: my $id = $Apache::inputtags::part;
728: my $response='';
729: if ( defined $ENV{'form.submitted'}) {
730: my (@awards,@msgs);
731: foreach $response (@Apache::inputtags::response) {
732: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
733: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
734: &Apache::lonxml::debug("keeping $value from $response for $id");
735: push (@awards,$value);
736: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
737: &Apache::lonxml::debug("got message $value from $response for $id");
738: push (@msgs,$value);
739: }
740: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
741: my $previously_used;
742: if ( $#Apache::inputtags::previous eq $#awards ) {
743: my $match=0;
744: my @matches;
745: foreach my $versionar (@Apache::inputtags::previous_version) {
746: foreach my $version (@$versionar) {
747: $matches[$version]++;
748: }
749: }
750: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
751: if ($match) {
752: $previously_used = 'PREVIOUSLY_LAST';
753: foreach my $value (@Apache::inputtags::previous) {
754: if ($value eq 'PREVIOUSLY_USED' ) {
755: $previously_used = $value;
756: last;
757: }
758: }
759: }
760: }
761: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
762: &setgradedata($finalaward,$msg,$id,$previously_used);
763: }
764: return '';
765: }
766:
767: sub gradestatus {
768: my ($id,$target) = @_;
769: my $showbutton = 1;
770: my $bgcolor = '';
771: my $message = '';
772: my $latemessage = '';
773: my $trystr='';
774: my $button='';
775: my $previousmsg='';
776:
777: my $status = $Apache::inputtags::status['-1'];
778: &Apache::lonxml::debug("gradestatus has :$status:");
779: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
780: $status ne 'INVALID_ACCESS') {
781: my $award = $Apache::lonhomework::history{"resource.$id.award"};
782: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
783: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
784: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
785: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
786: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
787: &Apache::lonxml::debug('Getting message');
788: ($showbutton,$bgcolor,$message,$previousmsg) =
789: &decideoutput($award,$awardmsg,$solved,$previous,$target);
790: if ($target eq 'tex') {
791: $message='\vskip 2 mm '.$message.' ';
792: } else {
793: $message="<td bgcolor=\"$bgcolor\">$message</td>";
794: if ($previousmsg) {
795: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
796: }
797: }
798: }
799: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
800: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
801: &Apache::lonxml::debug("got maxtries of :$maxtries:");
802: #if tries are set to negative turn off the Tries/Button and messages
803: if (defined($maxtries) && $maxtries < 0) { return ''; }
804: if ( $tries eq '' ) { $tries = '0'; }
805: if ( $maxtries eq '' ) { $maxtries = '2'; }
806: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
807: my $tries_text=&mt('Tries');
808: if ( $Apache::lonhomework::type eq 'survey') { $tries_text=&mt('Submissions'); }
809: if ( $showbutton ) {
810: if ($target eq 'tex') {
811: if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $ENV{'form.suppress_tries'} ne 'yes') {
812: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
813: } else {
814: $trystr = '\vskip 0 mm ';
815: }
816: } else {
817: $trystr = "<td><nobr>".$tries_text." $tries";
818: if($ENV{'request.state'} ne 'construct') {
819: $trystr.="/$maxtries";
820: } else {
821: if (defined($Apache::inputtags::params{'maxtries'})) {
822: $trystr.="/".$Apache::inputtags::params{'maxtries'};
823: }
824: }
825: $trystr.="</nobr></td>";
826: }
827: }
828: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
829: if ( $showbutton ) {
830: if ($target ne 'tex') {
831: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
832: }
833: }
834: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
835: #last submissions was after due date
836: if ($target eq 'tex') {
837: $latemessage=' The last submission was after the Due Date ';
838: } else {
839: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
840: }
841: }
842: }
843: my $output= $previousmsg.$latemessage.$message.$trystr;
844: if ($output =~ /^\s*$/) {
845: return $button;
846: } else {
847: if ($target eq 'tex') {
848: return $button.' \vskip 0 mm '.$output.' ';
849: } else {
850: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
851: }
852: }
853: }
854: 1;
855: __END__
856:
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