1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.158 2005/03/01 03:23:16 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: sub checkstatus {
298: my ($value,$awardref,$msgref)=@_;
299: for (my $i=0;$i<=$#$awardref;$i++) {
300: if ($$awardref[$i] eq $value) {
301: return ($$awardref[$i],$$msgref[$i]);
302: }
303: }
304: return(undef,undef);
305: }
306:
307: sub finalizeawards {
308: my ($awardref,$msgref)=@_;
309: my $result=undef;
310: my $award;
311: my $msg;
312: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
313: if ($result eq '' ) {
314: my $blankcount;
315: foreach $award (@$awardref) {
316: if ($award eq '') {
317: $result='MISSING_ANSWER';
318: $blankcount++;
319: }
320: }
321: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
322: }
323: if (defined($result)) { return ($result,$msg); }
324: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
325: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
326: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
327: 'UNIT_FAIL', 'NO_UNIT',
328: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
329: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
330: 'MISORDERED_RANK', 'INVALID_FILETYPE',
331: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
332: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
333: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
334: if (defined($result)) { return ($result,$msg); }
335: }
336: return ('ERROR',undef);
337: }
338:
339: sub decideoutput {
340: my ($award,$awardmsg,$solved,$previous,$target)=@_;
341: my $message='';
342: my $button=0;
343: my $previousmsg;
344: my $bgcolor='orange';
345: my $added_computer_text=0;
346: my %possiblecolors =
347: ( 'correct' => '#aaffaa',
348: 'charged_try' => '#ffaaaa',
349: 'not_charged_try' => '#ffffaa',
350: 'no_message' => '#fffff',
351: );
352: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
353:
354: if ($solved =~ /^correct/) {
355: if ($award eq 'ASSIGNED_SCORE') {
356: $message = &mt("A score has been assigned.");
357: } else {
358: if ($target eq 'tex') {
359: $message = '\textbf{'.&mt('You are correct.').'}';
360: } else {
361: $message = "<b>".&mt('You are correct.')."</b>";
362: $message.=" ".&mt("Computer's answer now shown above.");
363: }
364: $added_computer_text=1;
365: unless ($ENV{'course.'.
366: $ENV{'request.course.id'}.
367: '.disable_receipt_display'} eq 'yes') {
368: $message.=(($target eq 'web')?'<br />':' ').
369: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
370: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
371: }
372: }
373: $bgcolor=$possiblecolors{'correct'};
374: $button=0;
375: $previousmsg='';
376: } elsif ($solved =~ /^excused/) {
377: if ($target eq 'tex') {
378: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
379: } else {
380: $message = "<b>".&mt('You are excused from the problem.')."</b>";
381: }
382: $bgcolor=$possiblecolors{'charged_try'};
383: $button=0;
384: $previousmsg='';
385: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
386: if ($solved =~ /^incorrect/ || $solved eq '') {
387: $message = &mt("Incorrect").".";
388: $bgcolor=$possiblecolors{'charged_try'};
389: $button=1;
390: } else {
391: if ($target eq 'tex') {
392: $message = '\textbf{'.&mt('You are correct.').'}';
393: } else {
394: $message = "<b>".&mt('You are correct.')."</b>";
395: $message.=" ".&mt("Computer's answer now shown above.");
396: }
397: $added_computer_text=1;
398: unless ($ENV{'course.'.
399: $ENV{'request.course.id'}.
400: '.disable_receipt_display'} eq 'yes') {
401: $message.=(($target eq 'web')?'<br />':' ').
402: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
403: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
404: }
405: $bgcolor=$possiblecolors{'correct'};
406: $button=0;
407: $previousmsg='';
408: }
409: } elsif ($award eq 'NO_RESPONSE') {
410: $message = '';
411: $bgcolor=$possiblecolors{'no_feedback'};
412: $button=1;
413: } elsif ($award eq 'MISSING_ANSWER') {
414: $message = &mt('Some items were not submitted.');
415: $bgcolor=$possiblecolors{'not_charged_try'};
416: $button = 1;
417: } elsif ($award eq 'ERROR') {
418: $message = &mt('An error occured while grading your answer.');
419: $bgcolor=$possiblecolors{'not_charged_try'};
420: $button = 1;
421: } elsif ($award eq 'TOO_LONG') {
422: $message = &mt("The submitted answer was too long.");
423: $bgcolor=$possiblecolors{'not_charged_try'};
424: $button=1;
425: } elsif ($award eq 'WANTED_NUMERIC') {
426: $message = &mt("This question expects a numeric answer.");
427: $bgcolor=$possiblecolors{'not_charged_try'};
428: $button=1;
429: } elsif ($award eq 'MISORDERED_RANK') {
430: $message = &mt('You have provided an invalid ranking');
431: if ($target ne 'tex') {
432: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
433: }
434: $bgcolor=$possiblecolors{'not_charged_try'};
435: $button=1;
436: } elsif ($award eq 'INVALID_FILETYPE') {
437: $message = &mt('The filetype extension of the file you uploaded is not allowed.');
438: $bgcolor=$possiblecolors{'not_charged_try'};
439: $button=1;
440: } elsif ($award eq 'SIG_FAIL') {
441: my ($used,$min,$max)=split(':',$awardmsg);
442: my $word;
443: if ($used < $min) { $word=&mt('more'); }
444: if ($used > $max) { $word=&mt('fewer'); }
445: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
446: $bgcolor=$possiblecolors{'not_charged_try'};
447: $button=1;
448: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
449: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
450: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
451: $bgcolor=$possiblecolors{'not_charged_try'};
452: $button=1;
453: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
454: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
455: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
456: $bgcolor=$possiblecolors{'not_charged_try'};
457: $button=1;
458: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
459: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
460: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
461: $bgcolor=$possiblecolors{'not_charged_try'};
462: $button=1;
463: } elsif ($award eq 'UNIT_NOTNEEDED') {
464: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
465: $bgcolor=$possiblecolors{'not_charged_try'};
466: $button=1;
467: } elsif ($award eq 'NO_UNIT') {
468: $message = &mt("Units required").'.';
469: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
470: $bgcolor=$possiblecolors{'not_charged_try'};
471: $button=1;
472: } elsif ($award eq 'COMMA_FAIL') {
473: $message = &mt("Proper comma separation is required").'.';
474: $bgcolor=$possiblecolors{'not_charged_try'};
475: $button=1;
476: } elsif ($award eq 'BAD_FORMULA') {
477: $message = &mt("Unable to understand formula");
478: $bgcolor=$possiblecolors{'not_charged_try'};
479: $button=1;
480: } elsif ($award eq 'INCORRECT') {
481: $message = &mt("Incorrect").'.';
482: $bgcolor=$possiblecolors{'charged_try'};
483: $button=1;
484: } elsif ($award eq 'SUBMITTED') {
485: $message = &mt("Your submission has been recorded.");
486: $bgcolor=$possiblecolors{'correct'};
487: $button=1;
488: } elsif ($award eq 'DRAFT') {
489: $message = &mt("A draft copy has been saved.");
490: $bgcolor=$possiblecolors{'not_charged_try'};
491: $button=1;
492: } elsif ($award eq 'ASSIGNED_SCORE') {
493: $message = &mt("A score has been assigned.");
494: $bgcolor=$possiblecolors{'correct'};
495: $button=0;
496: } elsif ($award eq '') {
497: $bgcolor=$possiblecolors{'not_charged_try'};
498: $button=1;
499: } else {
500: $message = &mt("Unknown message").": $award";
501: $button=1;
502: }
503: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
504: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
505: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
506: $bgcolor=$possiblecolors{'correct'};
507: $button=1;
508: }
509: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
510: !$added_computer_text && $target ne 'tex') {
511: $message.=" ".&mt("Computer's answer now shown above.");
512: $added_computer_text=1;
513: }
514: return ($button,$bgcolor,$message,$previousmsg);
515: }
516:
517: sub markup_unit {
518: my ($unit,$target)=@_;
519: if ($target eq 'tex') {
520: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
521: } else {
522: return "<tt>".$unit."</tt>";
523: }
524: }
525:
526: sub removealldata {
527: my ($id)=@_;
528: foreach my $key (keys(%Apache::lonhomework::results)) {
529: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
530: &Apache::lonxml::debug("Removing $key");
531: delete($Apache::lonhomework::results{$key});
532: }
533: }
534: }
535:
536: sub hidealldata {
537: my ($id)=@_;
538: foreach my $key (keys(%Apache::lonhomework::results)) {
539: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
540: &Apache::lonxml::debug("Hidding $key");
541: my $newkey=$key;
542: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
543: $Apache::lonhomework::results{$newkey}=
544: $Apache::lonhomework::results{$key};
545: delete($Apache::lonhomework::results{$key});
546: }
547: }
548: }
549:
550: sub setgradedata {
551: my ($award,$msg,$id,$previously_used) = @_;
552: if ($Apache::lonhomework::scantronmode &&
553: &Apache::lonnet::validCODE($ENV{'form.CODE'})) {
554: $Apache::lonhomework::results{"resource.CODE"}=$ENV{'form.CODE'};
555: } elsif ($Apache::lonhomework::scantronmode &&
556: $ENV{'form.CODE'} eq '' &&
557: $Apache::lonhomework::history{"resource.CODE"} ne '') {
558: $Apache::lonhomework::results{"resource.CODE"}='';
559: }
560:
561: if (!$Apache::lonhomework::scantronmode &&
562: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
563: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
564: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
565: return '';
566: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
567: /^correct/ || $Apache::lonhomework::scantronmode ||
568: lc($Apache::lonhomework::problemstatus) eq 'no') {
569: # the student doesn't already have it correct,
570: # or we are in a mode (scantron orno problem status) where a correct
571: # can become incorrect
572: # handle assignment of tries and solved status
573: my $solvemsg;
574: if ($Apache::lonhomework::scantronmode) {
575: $solvemsg='correct_by_scantron';
576: } else {
577: $solvemsg='correct_by_student';
578: }
579: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
580: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
581: }
582: if ( $award eq 'ASSIGNED_SCORE') {
583: $Apache::lonhomework::results{"resource.$id.tries"} =
584: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
585: $Apache::lonhomework::results{"resource.$id.solved"} =
586: $solvemsg;
587: my $numawards=scalar(@Apache::inputtags::response);
588: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
589: foreach my $res (@Apache::inputtags::response) {
590: $Apache::lonhomework::results{"resource.$id.awarded"}+=
591: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
592: }
593: if ($numawards > 0) {
594: $Apache::lonhomework::results{"resource.$id.awarded"}/=
595: $numawards;
596: }
597: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
598: $Apache::lonhomework::results{"resource.$id.tries"} =
599: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
600: $Apache::lonhomework::results{"resource.$id.solved"} =
601: $solvemsg;
602: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
603: } elsif ( $award eq 'INCORRECT' ) {
604: $Apache::lonhomework::results{"resource.$id.tries"} =
605: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
606: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
607: $Apache::lonhomework::scantronmode) {
608: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
609: }
610: $Apache::lonhomework::results{"resource.$id.solved"} =
611: 'incorrect_attempted';
612: } elsif ( $award eq 'SUBMITTED' ) {
613: $Apache::lonhomework::results{"resource.$id.tries"} =
614: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
615: $Apache::lonhomework::results{"resource.$id.solved"} =
616: 'ungraded_attempted';
617: } elsif ( $award eq 'DRAFT' ) {
618: $Apache::lonhomework::results{"resource.$id.solved"} = '';
619: } elsif ( $award eq 'NO_RESPONSE' ) {
620: #no real response so delete any data that got stored
621: &removealldata($id);
622: return '';
623: } else {
624: $Apache::lonhomework::results{"resource.$id.solved"} =
625: 'incorrect_attempted';
626: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
627: $Apache::lonhomework::scantronmode) {
628: $Apache::lonhomework::results{"resource.$id.tries"} =
629: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
630: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
631: }
632: }
633: if (defined($msg)) {
634: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
635: }
636: # did either of the overall awards chage? If so ignore the
637: # previous check
638: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
639: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
640: ($Apache::lonhomework::results{"resource.$id.solved"} eq
641: $Apache::lonhomework::history{"resource.$id.solved"})) {
642: # check if this was a previous submission if it was delete the
643: # unneeded data and update the previously_used attribute
644: if ( $previously_used eq 'PREVIOUSLY_USED') {
645: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
646: delete($Apache::lonhomework::results{"resource.$id.tries"});
647: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
648: }
649: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
650: #delete all data as they student didn't do anything, but save
651: #the list of collaborators.
652: &removealldata($id);
653: #and since they didn't do anything we were never here
654: return '';
655: } else {
656: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
657: }
658: }
659: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
660: /^correct/ ) {
661: #delete all data as they student already has it correct
662: &removealldata($id);
663: #and since they didn't do anything we were never here
664: return '';
665: }
666: $Apache::lonhomework::results{"resource.$id.award"} = $award;
667: }
668:
669: sub grade {
670: my ($target) = @_;
671: my $id = $Apache::inputtags::part;
672: my $response='';
673: if ( defined $ENV{'form.submitted'}) {
674: my (@awards,@msgs);
675: foreach $response (@Apache::inputtags::response) {
676: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
677: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
678: &Apache::lonxml::debug("keeping $value from $response for $id");
679: push (@awards,$value);
680: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
681: &Apache::lonxml::debug("got message $value from $response for $id");
682: push (@msgs,$value);
683: }
684: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
685: my $previously_used;
686: if ( $#Apache::inputtags::previous eq $#awards ) {
687: my $match=0;
688: my @matches;
689: foreach my $versionar (@Apache::inputtags::previous_version) {
690: foreach my $version (@$versionar) {
691: $matches[$version]++;
692: }
693: }
694: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
695: if ($match) {
696: $previously_used = 'PREVIOUSLY_LAST';
697: foreach my $value (@Apache::inputtags::previous) {
698: if ($value eq 'PREVIOUSLY_USED' ) {
699: $previously_used = $value;
700: last;
701: }
702: }
703: }
704: }
705: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
706: &setgradedata($finalaward,$msg,$id,$previously_used);
707: }
708: return '';
709: }
710:
711: sub gradestatus {
712: my ($id,$target) = @_;
713: my $showbutton = 1;
714: my $bgcolor = '';
715: my $message = '';
716: my $latemessage = '';
717: my $trystr='';
718: my $button='';
719: my $previousmsg='';
720:
721: my $status = $Apache::inputtags::status['-1'];
722: &Apache::lonxml::debug("gradestatus has :$status:");
723: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
724: $status ne 'INVALID_ACCESS') {
725: my $award = $Apache::lonhomework::history{"resource.$id.award"};
726: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
727: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
728: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
729: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
730: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
731: &Apache::lonxml::debug('Getting message');
732: ($showbutton,$bgcolor,$message,$previousmsg) =
733: &decideoutput($award,$awardmsg,$solved,$previous,$target);
734: if ($target eq 'tex') {
735: $message='\vskip 2 mm '.$message.' ';
736: } else {
737: $message="<td bgcolor=\"$bgcolor\">$message</td>";
738: if ($previousmsg) {
739: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
740: }
741: }
742: }
743: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
744: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
745: &Apache::lonxml::debug("got maxtries of :$maxtries:");
746: #if tries are set to negative turn off the Tries/Button and messages
747: if (defined($maxtries) && $maxtries < 0) { return ''; }
748: if ( $tries eq '' ) { $tries = '0'; }
749: if ( $maxtries eq '' ) { $maxtries = '2'; }
750: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
751: my $tries_text=&mt('Tries');
752: if ( $Apache::lonhomework::type eq 'survey') { $tries_text=&mt('Submissions'); }
753: if ( $showbutton ) {
754: if ($target eq 'tex') {
755: if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $ENV{'form.suppress_tries'} ne 'yes') {
756: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
757: } else {
758: $trystr = '\vskip 0 mm ';
759: }
760: } else {
761: $trystr = "<td><nobr>".$tries_text." $tries";
762: if($ENV{'request.state'} ne 'construct') {
763: $trystr.="/$maxtries";
764: } else {
765: if (defined($Apache::inputtags::params{'maxtries'})) {
766: $trystr.="/".$Apache::inputtags::params{'maxtries'};
767: }
768: }
769: $trystr.="</nobr></td>";
770: }
771: }
772: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
773: if ( $showbutton ) {
774: if ($target ne 'tex') {
775: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
776: }
777: }
778: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
779: #last submissions was after due date
780: if ($target eq 'tex') {
781: $latemessage=' The last submission was after the Due Date ';
782: } else {
783: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
784: }
785: }
786: }
787: my $output= $previousmsg.$latemessage.$message.$trystr;
788: if ($output =~ /^\s*$/) {
789: return $button;
790: } else {
791: if ($target eq 'tex') {
792: return $button.' \vskip 0 mm '.$output.' ';
793: } else {
794: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
795: }
796: }
797: }
798: 1;
799: __END__
800:
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