1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.157 2005/02/18 05:41:31 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: }
230: $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
231: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
232: }
233: } else {
234: #right or wrong don't show what was last typed in.
235: $result='<i>'.$Apache::inputtags::answertxt{$id}.'</i>';
236: #$result='';
237: }
238: } elsif ($target eq 'edit') {
239: $result=&Apache::edit::tag_start($target,$token);
240: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
241: &Apache::edit::text_arg('Click-On Texts (comma sep):',
242: 'addchars',$token,10);
243: $result.=&Apache::edit::select_arg('Readonly:','readonly',
244: ['no','yes'],$token);
245: $result.=&Apache::edit::end_row();
246: $result.=&Apache::edit::end_table();
247: } elsif ($target eq 'modified') {
248: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
249: $safeeval,'size',
250: 'addchars','readonly');
251: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
252: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
253: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
254: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
255: $result='\framebox['.$size.'][s]{\tiny\strut}';
256: }
257: return $result;
258: }
259:
260: sub end_textline {
261: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
262: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
263: elsif ($target eq 'edit') { return ('','no'); }
264: return "";
265: }
266:
267: sub start_hiddenline {
268: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
269: my $result = "";
270: if ($target eq 'web') {
271: $Apache::lonxml::evaluate--;
272: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
273: my $partid=$Apache::inputtags::part;
274: my $id=$Apache::inputtags::response[-1];
275: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
276: if ($Apache::lonhomework::type ne 'exam') {
277: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
278: $oldresponse.'" />';
279: }
280: }
281: } elsif ($target eq 'edit') {
282: $result=&Apache::edit::tag_start($target,$token);
283: $result.=&Apache::edit::end_table;
284: }
285: return $result;
286: }
287:
288: sub end_hiddenline {
289: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
290: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
291: elsif ($target eq 'edit') { return ('','no'); }
292: return "";
293: }
294:
295: sub checkstatus {
296: my ($value,$awardref,$msgref)=@_;
297: for (my $i=0;$i<=$#$awardref;$i++) {
298: if ($$awardref[$i] eq $value) {
299: return ($$awardref[$i],$$msgref[$i]);
300: }
301: }
302: return(undef,undef);
303: }
304:
305: sub finalizeawards {
306: my ($awardref,$msgref)=@_;
307: my $result=undef;
308: my $award;
309: my $msg;
310: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
311: if ($result eq '' ) {
312: my $blankcount;
313: foreach $award (@$awardref) {
314: if ($award eq '') {
315: $result='MISSING_ANSWER';
316: $blankcount++;
317: }
318: }
319: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
320: }
321: if (defined($result)) { return ($result,$msg); }
322: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
323: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
324: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
325: 'UNIT_FAIL', 'NO_UNIT',
326: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
327: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
328: 'MISORDERED_RANK', 'INVALID_FILETYPE',
329: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
330: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
331: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
332: if (defined($result)) { return ($result,$msg); }
333: }
334: return ('ERROR',undef);
335: }
336:
337: sub decideoutput {
338: my ($award,$awardmsg,$solved,$previous,$target)=@_;
339: my $message='';
340: my $button=0;
341: my $previousmsg;
342: my $bgcolor='orange';
343: my $added_computer_text=0;
344: my %possiblecolors =
345: ( 'correct' => '#aaffaa',
346: 'charged_try' => '#ffaaaa',
347: 'not_charged_try' => '#ffffaa',
348: 'no_message' => '#fffff',
349: );
350: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
351:
352: if ($solved =~ /^correct/) {
353: if ($award eq 'ASSIGNED_SCORE') {
354: $message = &mt("A score has been assigned.");
355: } else {
356: if ($target eq 'tex') {
357: $message = '\textbf{'.&mt('You are correct.').'}';
358: } else {
359: $message = "<b>".&mt('You are correct.')."</b>";
360: $message.=" ".&mt("Computer's answer now shown above.");
361: }
362: $added_computer_text=1;
363: unless ($ENV{'course.'.
364: $ENV{'request.course.id'}.
365: '.disable_receipt_display'} eq 'yes') {
366: $message.=(($target eq 'web')?'<br />':' ').
367: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
368: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
369: }
370: }
371: $bgcolor=$possiblecolors{'correct'};
372: $button=0;
373: $previousmsg='';
374: } elsif ($solved =~ /^excused/) {
375: if ($target eq 'tex') {
376: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
377: } else {
378: $message = "<b>".&mt('You are excused from the problem.')."</b>";
379: }
380: $bgcolor=$possiblecolors{'charged_try'};
381: $button=0;
382: $previousmsg='';
383: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
384: if ($solved =~ /^incorrect/ || $solved eq '') {
385: $message = &mt("Incorrect").".";
386: $bgcolor=$possiblecolors{'charged_try'};
387: $button=1;
388: } else {
389: if ($target eq 'tex') {
390: $message = '\textbf{'.&mt('You are correct.').'}';
391: } else {
392: $message = "<b>".&mt('You are correct.')."</b>";
393: $message.=" ".&mt("Computer's answer now shown above.");
394: }
395: $added_computer_text=1;
396: unless ($ENV{'course.'.
397: $ENV{'request.course.id'}.
398: '.disable_receipt_display'} eq 'yes') {
399: $message.=(($target eq 'web')?'<br />':' ').
400: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
401: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
402: }
403: $bgcolor=$possiblecolors{'correct'};
404: $button=0;
405: $previousmsg='';
406: }
407: } elsif ($award eq 'NO_RESPONSE') {
408: $message = '';
409: $bgcolor=$possiblecolors{'no_feedback'};
410: $button=1;
411: } elsif ($award eq 'MISSING_ANSWER') {
412: $message = &mt('Some items were not submitted.');
413: $bgcolor=$possiblecolors{'not_charged_try'};
414: $button = 1;
415: } elsif ($award eq 'ERROR') {
416: $message = &mt('An error occured while grading your answer.');
417: $bgcolor=$possiblecolors{'not_charged_try'};
418: $button = 1;
419: } elsif ($award eq 'TOO_LONG') {
420: $message = &mt("The submitted answer was too long.");
421: $bgcolor=$possiblecolors{'not_charged_try'};
422: $button=1;
423: } elsif ($award eq 'WANTED_NUMERIC') {
424: $message = &mt("This question expects a numeric answer.");
425: $bgcolor=$possiblecolors{'not_charged_try'};
426: $button=1;
427: } elsif ($award eq 'MISORDERED_RANK') {
428: $message = &mt('You have provided an invalid ranking');
429: if ($target ne 'tex') {
430: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
431: }
432: $bgcolor=$possiblecolors{'not_charged_try'};
433: $button=1;
434: } elsif ($award eq 'INVALID_FILETYPE') {
435: $message = &mt('The filetype extension of the file you uploaded is not allowed.');
436: $bgcolor=$possiblecolors{'not_charged_try'};
437: $button=1;
438: } elsif ($award eq 'SIG_FAIL') {
439: my ($used,$min,$max)=split(':',$awardmsg);
440: my $word;
441: if ($used < $min) { $word=&mt('more'); }
442: if ($used > $max) { $word=&mt('fewer'); }
443: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
444: $bgcolor=$possiblecolors{'not_charged_try'};
445: $button=1;
446: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
447: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
448: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
449: $bgcolor=$possiblecolors{'not_charged_try'};
450: $button=1;
451: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
452: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
453: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
454: $bgcolor=$possiblecolors{'not_charged_try'};
455: $button=1;
456: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
457: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
458: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
459: $bgcolor=$possiblecolors{'not_charged_try'};
460: $button=1;
461: } elsif ($award eq 'UNIT_NOTNEEDED') {
462: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
463: $bgcolor=$possiblecolors{'not_charged_try'};
464: $button=1;
465: } elsif ($award eq 'NO_UNIT') {
466: $message = &mt("Units required").'.';
467: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
468: $bgcolor=$possiblecolors{'not_charged_try'};
469: $button=1;
470: } elsif ($award eq 'COMMA_FAIL') {
471: $message = &mt("Proper comma separation is required").'.';
472: $bgcolor=$possiblecolors{'not_charged_try'};
473: $button=1;
474: } elsif ($award eq 'BAD_FORMULA') {
475: $message = &mt("Unable to understand formula");
476: $bgcolor=$possiblecolors{'not_charged_try'};
477: $button=1;
478: } elsif ($award eq 'INCORRECT') {
479: $message = &mt("Incorrect").'.';
480: $bgcolor=$possiblecolors{'charged_try'};
481: $button=1;
482: } elsif ($award eq 'SUBMITTED') {
483: $message = &mt("Your submission has been recorded.");
484: $bgcolor=$possiblecolors{'correct'};
485: $button=1;
486: } elsif ($award eq 'DRAFT') {
487: $message = &mt("A draft copy has been saved.");
488: $bgcolor=$possiblecolors{'not_charged_try'};
489: $button=1;
490: } elsif ($award eq 'ASSIGNED_SCORE') {
491: $message = &mt("A score has been assigned.");
492: $bgcolor=$possiblecolors{'correct'};
493: $button=0;
494: } elsif ($award eq '') {
495: $bgcolor=$possiblecolors{'not_charged_try'};
496: $button=1;
497: } else {
498: $message = &mt("Unknown message").": $award";
499: $button=1;
500: }
501: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
502: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
503: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
504: $bgcolor=$possiblecolors{'correct'};
505: $button=1;
506: }
507: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
508: !$added_computer_text && $target ne 'tex') {
509: $message.=" ".&mt("Computer's answer now shown above.");
510: $added_computer_text=1;
511: }
512: return ($button,$bgcolor,$message,$previousmsg);
513: }
514:
515: sub markup_unit {
516: my ($unit,$target)=@_;
517: if ($target eq 'tex') {
518: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
519: } else {
520: return "<tt>".$unit."</tt>";
521: }
522: }
523:
524: sub removealldata {
525: my ($id)=@_;
526: foreach my $key (keys(%Apache::lonhomework::results)) {
527: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
528: &Apache::lonxml::debug("Removing $key");
529: delete($Apache::lonhomework::results{$key});
530: }
531: }
532: }
533:
534: sub hidealldata {
535: my ($id)=@_;
536: foreach my $key (keys(%Apache::lonhomework::results)) {
537: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
538: &Apache::lonxml::debug("Hidding $key");
539: my $newkey=$key;
540: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
541: $Apache::lonhomework::results{$newkey}=
542: $Apache::lonhomework::results{$key};
543: delete($Apache::lonhomework::results{$key});
544: }
545: }
546: }
547:
548: sub setgradedata {
549: my ($award,$msg,$id,$previously_used) = @_;
550: if ($Apache::lonhomework::scantronmode &&
551: &Apache::lonnet::validCODE($ENV{'form.CODE'})) {
552: $Apache::lonhomework::results{"resource.CODE"}=$ENV{'form.CODE'};
553: } elsif ($Apache::lonhomework::scantronmode &&
554: $ENV{'form.CODE'} eq '' &&
555: $Apache::lonhomework::history{"resource.CODE"} ne '') {
556: $Apache::lonhomework::results{"resource.CODE"}='';
557: }
558:
559: if (!$Apache::lonhomework::scantronmode &&
560: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
561: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
562: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
563: return '';
564: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
565: /^correct/ || $Apache::lonhomework::scantronmode ||
566: lc($Apache::lonhomework::problemstatus) eq 'no') {
567: # the student doesn't already have it correct,
568: # or we are in a mode (scantron orno problem status) where a correct
569: # can become incorrect
570: # handle assignment of tries and solved status
571: my $solvemsg;
572: if ($Apache::lonhomework::scantronmode) {
573: $solvemsg='correct_by_scantron';
574: } else {
575: $solvemsg='correct_by_student';
576: }
577: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
578: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
579: }
580: if ( $award eq 'ASSIGNED_SCORE') {
581: $Apache::lonhomework::results{"resource.$id.tries"} =
582: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
583: $Apache::lonhomework::results{"resource.$id.solved"} =
584: $solvemsg;
585: my $numawards=scalar(@Apache::inputtags::response);
586: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
587: foreach my $res (@Apache::inputtags::response) {
588: $Apache::lonhomework::results{"resource.$id.awarded"}+=
589: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
590: }
591: if ($numawards > 0) {
592: $Apache::lonhomework::results{"resource.$id.awarded"}/=
593: $numawards;
594: }
595: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
596: $Apache::lonhomework::results{"resource.$id.tries"} =
597: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
598: $Apache::lonhomework::results{"resource.$id.solved"} =
599: $solvemsg;
600: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
601: } elsif ( $award eq 'INCORRECT' ) {
602: $Apache::lonhomework::results{"resource.$id.tries"} =
603: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
604: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
605: $Apache::lonhomework::scantronmode) {
606: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
607: }
608: $Apache::lonhomework::results{"resource.$id.solved"} =
609: 'incorrect_attempted';
610: } elsif ( $award eq 'SUBMITTED' ) {
611: $Apache::lonhomework::results{"resource.$id.tries"} =
612: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
613: $Apache::lonhomework::results{"resource.$id.solved"} =
614: 'ungraded_attempted';
615: } elsif ( $award eq 'DRAFT' ) {
616: $Apache::lonhomework::results{"resource.$id.solved"} = '';
617: } elsif ( $award eq 'NO_RESPONSE' ) {
618: #no real response so delete any data that got stored
619: &removealldata($id);
620: return '';
621: } else {
622: $Apache::lonhomework::results{"resource.$id.solved"} =
623: 'incorrect_attempted';
624: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
625: $Apache::lonhomework::scantronmode) {
626: $Apache::lonhomework::results{"resource.$id.tries"} =
627: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
628: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
629: }
630: }
631: if (defined($msg)) {
632: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
633: }
634: # did either of the overall awards chage? If so ignore the
635: # previous check
636: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
637: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
638: ($Apache::lonhomework::results{"resource.$id.solved"} eq
639: $Apache::lonhomework::history{"resource.$id.solved"})) {
640: # check if this was a previous submission if it was delete the
641: # unneeded data and update the previously_used attribute
642: if ( $previously_used eq 'PREVIOUSLY_USED') {
643: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
644: delete($Apache::lonhomework::results{"resource.$id.tries"});
645: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
646: }
647: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
648: #delete all data as they student didn't do anything, but save
649: #the list of collaborators.
650: &removealldata($id);
651: #and since they didn't do anything we were never here
652: return '';
653: } else {
654: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
655: }
656: }
657: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
658: /^correct/ ) {
659: #delete all data as they student already has it correct
660: &removealldata($id);
661: #and since they didn't do anything we were never here
662: return '';
663: }
664: $Apache::lonhomework::results{"resource.$id.award"} = $award;
665: }
666:
667: sub grade {
668: my ($target) = @_;
669: my $id = $Apache::inputtags::part;
670: my $response='';
671: if ( defined $ENV{'form.submitted'}) {
672: my (@awards,@msgs);
673: foreach $response (@Apache::inputtags::response) {
674: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
675: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
676: &Apache::lonxml::debug("keeping $value from $response for $id");
677: push (@awards,$value);
678: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
679: &Apache::lonxml::debug("got message $value from $response for $id");
680: push (@msgs,$value);
681: }
682: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
683: my $previously_used;
684: if ( $#Apache::inputtags::previous eq $#awards ) {
685: my $match=0;
686: my @matches;
687: foreach my $versionar (@Apache::inputtags::previous_version) {
688: foreach my $version (@$versionar) {
689: $matches[$version]++;
690: }
691: }
692: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
693: if ($match) {
694: $previously_used = 'PREVIOUSLY_LAST';
695: foreach my $value (@Apache::inputtags::previous) {
696: if ($value eq 'PREVIOUSLY_USED' ) {
697: $previously_used = $value;
698: last;
699: }
700: }
701: }
702: }
703: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
704: &setgradedata($finalaward,$msg,$id,$previously_used);
705: }
706: return '';
707: }
708:
709: sub gradestatus {
710: my ($id,$target) = @_;
711: my $showbutton = 1;
712: my $bgcolor = '';
713: my $message = '';
714: my $latemessage = '';
715: my $trystr='';
716: my $button='';
717: my $previousmsg='';
718:
719: my $status = $Apache::inputtags::status['-1'];
720: &Apache::lonxml::debug("gradestatus has :$status:");
721: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
722: $status ne 'INVALID_ACCESS') {
723: my $award = $Apache::lonhomework::history{"resource.$id.award"};
724: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
725: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
726: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
727: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
728: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
729: &Apache::lonxml::debug('Getting message');
730: ($showbutton,$bgcolor,$message,$previousmsg) =
731: &decideoutput($award,$awardmsg,$solved,$previous,$target);
732: if ($target eq 'tex') {
733: $message='\vskip 2 mm '.$message.' ';
734: } else {
735: $message="<td bgcolor=\"$bgcolor\">$message</td>";
736: if ($previousmsg) {
737: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
738: }
739: }
740: }
741: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
742: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
743: &Apache::lonxml::debug("got maxtries of :$maxtries:");
744: #if tries are set to negative turn off the Tries/Button and messages
745: if (defined($maxtries) && $maxtries < 0) { return ''; }
746: if ( $tries eq '' ) { $tries = '0'; }
747: if ( $maxtries eq '' ) { $maxtries = '2'; }
748: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
749: my $tries_text=&mt('Tries');
750: if ( $Apache::lonhomework::type eq 'survey') { $tries_text=&mt('Submissions'); }
751: if ( $showbutton ) {
752: if ($target eq 'tex') {
753: if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $ENV{'form.suppress_tries'} ne 'yes') {
754: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
755: } else {
756: $trystr = '\vskip 0 mm ';
757: }
758: } else {
759: $trystr = "<td><nobr>".$tries_text." $tries";
760: if($ENV{'request.state'} ne 'construct') {
761: $trystr.="/$maxtries";
762: } else {
763: if (defined($Apache::inputtags::params{'maxtries'})) {
764: $trystr.="/".$Apache::inputtags::params{'maxtries'};
765: }
766: }
767: $trystr.="</nobr></td>";
768: }
769: }
770: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
771: if ( $showbutton ) {
772: if ($target ne 'tex') {
773: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
774: }
775: }
776: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
777: #last submissions was after due date
778: if ($target eq 'tex') {
779: $latemessage=' The last submission was after the Due Date ';
780: } else {
781: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
782: }
783: }
784: }
785: my $output= $previousmsg.$latemessage.$message.$trystr;
786: if ($output =~ /^\s*$/) {
787: return $button;
788: } else {
789: if ($target eq 'tex') {
790: return $button.' \vskip 0 mm '.$output.' ';
791: } else {
792: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
793: }
794: }
795: }
796: 1;
797: __END__
798:
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