1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.136 2004/03/13 00:36:11 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: }
69:
70: sub check_for_duplicate_ids {
71: my %check;
72: foreach my $id (@Apache::inputtags::partlist,
73: @Apache::inputtags::responselist,
74: @Apache::inputtags::importlist) {
75: $check{$id}++;
76: }
77: my @duplicates;
78: foreach my $id (sort(keys(%check))) {
79: if ($check{$id} > 1) {
80: push(@duplicates,$id);
81: }
82: }
83: if (@duplicates) {
84: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
85: }
86: }
87:
88: sub start_input {
89: my ($parstack,$safeeval)=@_;
90: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
91: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
92: push (@Apache::inputtags::input,$id);
93: push (@Apache::inputtags::inputlist,$id);
94: return $id;
95: }
96:
97: sub end_input {
98: pop @Apache::inputtags::input;
99: return '';
100: }
101:
102: sub addchars {
103: my ($fieldid,$addchars)=@_;
104: my $output='';
105: foreach (split(/\,/,$addchars)) {
106: $output.='<a href="javascript:void(document.forms.lonhomework.'.
107: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
108: }
109: return $output;
110: }
111:
112: sub start_textfield {
113: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
114: my $result = "";
115: my $id = &start_input($parstack,$safeeval);
116: my $resid=$Apache::inputtags::response[-1];
117: if ($target eq 'web') {
118: $Apache::lonxml::evaluate--;
119: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
120: my $partid=$Apache::inputtags::part;
121: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
122: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
123: if ( $cols eq '') { $cols = 80; }
124: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
125: if ( $rows eq '') { $rows = 10; }
126: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
127: $result='';
128: if ($addchars) {
129: $result.=&addchars('HWVAL_'.$resid,$addchars);
130: }
131: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" '.
132: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
133: if ($oldresponse ne '') {
134: #get rid of any startup text if the user has already responded
135: &Apache::lonxml::get_all_text("/textfield",$parser);
136: }
137: } else {
138: #right or wrong don't show it
139: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
140: $result='';
141: #get rid of any startup text
142: &Apache::lonxml::get_all_text("/textfield",$parser);
143: }
144: } elsif ($target eq 'grade') {
145: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
146: if ($seedtext eq $ENV{'form.HWVAL_'.$resid}) {
147: # if the seed text is still there it wasn't a real submission
148: $ENV{'form.HWVAL_'.$resid}='';
149: }
150: } elsif ($target eq 'edit') {
151: $result.=&Apache::edit::tag_start($target,$token);
152: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
153: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
154: $result.=&Apache::edit::text_arg
155: ('Click-On Texts (comma sep):','addchars',$token,10);
156: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
157: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
158: } elsif ($target eq 'modified') {
159: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
160: $safeeval,'rows','cols',
161: 'addchars');
162: if ($constructtag) {
163: $result = &Apache::edit::rebuild_tag($token);
164: } else {
165: $result=$token->[4];
166: }
167: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
168: } elsif ($target eq 'tex') {
169: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
170: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
171: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
172: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
173: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
174: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
175: } else {
176: my $TeXwidth=$width_of_box/80;
177: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
178: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
179: $result.='}}}\vskip 2 mm ';
180: }
181: }
182: return $result;
183: }
184:
185: sub end_textfield {
186: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
187: my $result;
188: if ($target eq 'web') {
189: $Apache::lonxml::evaluate++;
190: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
191: return "</textarea>";
192: }
193: } elsif ($target eq 'edit') {
194: $result=&Apache::edit::end_table();
195: }
196: &end_input;
197: return $result;
198: }
199:
200: sub start_textline {
201: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
202: my $result = "";
203: if ($target eq 'web') {
204: $Apache::lonxml::evaluate--;
205: my $partid=$Apache::inputtags::part;
206: my $id=$Apache::inputtags::response[-1];
207: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
208: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
209: my $maxlength;
210: if ($size eq '') { $size=20; } else {
211: if ($size < 20) { $maxlength=$size; }
212: }
213: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
214: if ($Apache::lonhomework::type ne 'exam') {
215: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
216: $result='';
217: if ($addchars) {
218: $result.=&addchars('HWVAL_'.$id,$addchars);
219: }
220: $result.= '<input type="text" name="HWVAL_'.$id.'" value="'.
221: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
222: }
223: } else {
224: #right or wrong don't show what was last typed in.
225: #$result='<i>'.$oldresponse.'</i>';
226: $result='';
227: }
228: } elsif ($target eq 'edit') {
229: $result=&Apache::edit::tag_start($target,$token);
230: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
231: &Apache::edit::text_arg
232: ('Click-On Texts (comma sep):','addchars',$token,10)."</td></tr>";
233: $result.=&Apache::edit::end_table;
234: } elsif ($target eq 'modified') {
235: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size','addchars');
236: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
237: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
238: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
239: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
240: $result='\framebox['.$size.'][s]{\tiny\strut}';
241: }
242: return $result;
243: }
244:
245: sub end_textline {
246: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
247: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
248: elsif ($target eq 'edit') { return ('','no'); }
249: return "";
250: }
251:
252: sub start_hiddenline {
253: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
254: my $result = "";
255: if ($target eq 'web') {
256: $Apache::lonxml::evaluate--;
257: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
258: my $partid=$Apache::inputtags::part;
259: my $id=$Apache::inputtags::response[-1];
260: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
261: if ($Apache::lonhomework::type ne 'exam') {
262: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
263: $oldresponse.'" />';
264: }
265: }
266: } elsif ($target eq 'edit') {
267: $result=&Apache::edit::tag_start($target,$token);
268: $result.=&Apache::edit::end_table;
269: }
270: return $result;
271: }
272:
273: sub end_hiddenline {
274: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
275: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
276: elsif ($target eq 'edit') { return ('','no'); }
277: return "";
278: }
279:
280: sub checkstatus {
281: my ($value,$awardref,$msgref)=@_;
282: for (my $i=0;$i<=$#$awardref;$i++) {
283: if ($$awardref[$i] eq $value) {
284: return ($$awardref[$i],$$msgref[$i]);
285: }
286: }
287: return(undef,undef);
288: }
289:
290: sub finalizeawards {
291: my ($awardref,$msgref)=@_;
292: my $result=undef;
293: my $award;
294: my $msg;
295: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
296: if ($result eq '' ) {
297: my $blankcount;
298: foreach $award (@$awardref) {
299: if ($award eq '') {
300: $result='MISSING_ANSWER';
301: $blankcount++;
302: }
303: }
304: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
305: }
306: if (defined($result)) { return ($result,$msg); }
307: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
308: 'TOO_LONG', 'UNIT_FAIL', 'NO_UNIT',
309: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
310: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
311: 'MISORDERED_RANK', 'INVALID_FILETYPE',
312: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
313: 'APPROX_ANS', 'EXACT_ANS') {
314: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
315: if (defined($result)) { return ($result,$msg); }
316: }
317: return ('ERROR',undef);
318: }
319:
320: sub decideoutput {
321: my ($award,$awardmsg,$solved,$previous,$target)=@_;
322: my $message='';
323: my $button=0;
324: my $previousmsg;
325: my $bgcolor='orange';
326: my %possiblecolors =
327: ( 'correct' => '#aaffaa',
328: 'charged_try' => '#ffaaaa',
329: 'not_charged_try' => '#ffffaa',
330: 'no_message' => '#fffff',
331: );
332: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
333:
334: if ($solved =~ /^correct/) {
335: if ($award eq 'ASSIGNED_SCORE') {
336: $message = &mt("A score has been assigned.");
337: } else {
338: if ($target eq 'tex') {
339: $message = '\textbf{'.&mt('You are correct.').'}';
340: } else {
341: $message = "<b>".&mt('You are correct.')."</b>";
342: }
343: unless ($ENV{'course.'.
344: $ENV{'request.course.id'}.
345: '.disable_receipt_display'} eq 'yes') {
346: $message.=(($target eq 'web')?'<br />':' ').
347: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
348: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
349: }
350: }
351: $bgcolor=$possiblecolors{'correct'};
352: $button=0;
353: $previousmsg='';
354: } elsif ($solved =~ /^excused/) {
355: if ($target eq 'tex') {
356: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
357: } else {
358: $message = "<b>".&mt('You are excused from the problem.')."</b>";
359: }
360: $bgcolor=$possiblecolors{'charged_try'};
361: $button=0;
362: $previousmsg='';
363: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
364: if ($solved =~ /^incorrect/ || $solved eq '') {
365: $message = &mt("Incorrect");
366: $bgcolor=$possiblecolors{'charged_try'};
367: $button=1;
368: } else {
369: $message = "<b>".&mt('You are correct.')."</b>";
370: unless ($ENV{'course.'.
371: $ENV{'request.course.id'}.
372: '.disable_receipt_display'} eq 'yes') {
373: $message.=(($target eq 'web')?'<br />':' ').
374: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
375: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
376: }
377: $bgcolor=$possiblecolors{'correct'};
378: $button=0;
379: $previousmsg='';
380: }
381: } elsif ($award eq 'NO_RESPONSE') {
382: $message = '';
383: $bgcolor=$possiblecolors{'no_feedback'};
384: $button=1;
385: } elsif ($award eq 'MISSING_ANSWER') {
386: $message = &mt('Some items were not submitted.');
387: $bgcolor=$possiblecolors{'not_charged_try'};
388: $button = 1;
389: } elsif ($award eq 'ERROR') {
390: $message = &mt('An error occured while grading your answer.');
391: $bgcolor=$possiblecolors{'not_charged_try'};
392: $button = 1;
393: } elsif ($award eq 'TOO_LONG') {
394: $message = &mt("The submitted answer was too long.");
395: $bgcolor=$possiblecolors{'not_charged_try'};
396: $button=1;
397: } elsif ($award eq 'WANTED_NUMERIC') {
398: $message = &mt("This question expects a numeric answer.");
399: $bgcolor=$possiblecolors{'not_charged_try'};
400: $button=1;
401: } elsif ($award eq 'MISORDERED_RANK') {
402: $message = &mt('You have provided an invalid ranking');
403: if ($target ne 'tex') {
404: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
405: }
406: $bgcolor=$possiblecolors{'not_charged_try'};
407: $button=1;
408: } elsif ($award eq 'INVALID_FILETYPE') {
409: $message = &mt('The filetype extension of the file you uploaded is not allowed.');
410: $bgcolor=$possiblecolors{'not_charged_try'};
411: $button=1;
412: } elsif ($award eq 'SIG_FAIL') {
413: $message = &mt("Significant figures are incorrect, you provided [_1] significant figures while [_2] to [_3] were expected. Submission not graded.",(split(/:/,$awardmsg)));
414: $bgcolor=$possiblecolors{'not_charged_try'};
415: $button=1;
416: } elsif ($award eq 'UNIT_FAIL') {
417: $message = &mt('Units incorrect. Computer reads units as "[_1]"',
418: $awardmsg);
419: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
420: $bgcolor=$possiblecolors{'not_charged_try'};
421: $button=1;
422: } elsif ($award eq 'UNIT_NOTNEEDED') {
423: $message = &mt('Only a number required. Computer reads units of "[_1]"',$awardmsg);
424: $bgcolor=$possiblecolors{'not_charged_try'};
425: $button=1;
426: } elsif ($award eq 'NO_UNIT') {
427: $message = &mt("Units required");
428: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
429: $bgcolor=$possiblecolors{'not_charged_try'};
430: $button=1;
431: } elsif ($award eq 'BAD_FORMULA') {
432: $message = &mt("Unable to understand formula");
433: $bgcolor=$possiblecolors{'not_charged_try'};
434: $button=1;
435: } elsif ($award eq 'INCORRECT') {
436: $message = &mt("Incorrect");
437: $bgcolor=$possiblecolors{'charged_try'};
438: $button=1;
439: } elsif ($award eq 'SUBMITTED') {
440: $message = &mt("Your submission has been recorded.");
441: $bgcolor=$possiblecolors{'correct'};
442: $button=1;
443: } elsif ($award eq 'DRAFT') {
444: $message = "A draft copy has been saved.";
445: $bgcolor=$possiblecolors{'not_charged_try'};
446: $button=1;
447: } elsif ($award eq 'ASSIGNED_SCORE') {
448: $message = "A score has been assigned.";
449: $bgcolor=$possiblecolors{'correct'};
450: $button=0;
451: } else {
452: $message = &mt("Unknown message").": $award";
453: $button=1;
454: }
455: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
456: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
457: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
458: $bgcolor=$possiblecolors{'correct'};
459: $button=1;
460: }
461: return ($button,$bgcolor,$message,$previousmsg);
462: }
463:
464: sub removealldata {
465: my ($id)=@_;
466: foreach my $key (keys(%Apache::lonhomework::results)) {
467: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
468: &Apache::lonxml::debug("Removing $key");
469: delete($Apache::lonhomework::results{$key});
470: }
471: }
472: }
473:
474: sub setgradedata {
475: my ($award,$msg,$id,$previously_used) = @_;
476: # if the student already has it correct, don't modify the status
477: if (!$Apache::lonhomework::scantronmode &&
478: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
479: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
480: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
481: return '';
482: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
483: /^correct/ || $Apache::lonhomework::scantronmode ||
484: lc($Apache::lonhomework::problemstatus) eq 'no') {
485: #handle assignment of tries and solved status
486: my $solvemsg;
487: if ($Apache::lonhomework::scantronmode) {
488: $solvemsg='correct_by_scantron';
489: } else {
490: $solvemsg='correct_by_student';
491: }
492: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
493: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
494: }
495: if ( $award eq 'ASSIGNED_SCORE') {
496: $Apache::lonhomework::results{"resource.$id.tries"} =
497: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
498: $Apache::lonhomework::results{"resource.$id.solved"} =
499: $solvemsg;
500: my $numawards=scalar(@Apache::inputtags::response);
501: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
502: foreach my $res (@Apache::inputtags::response) {
503: $Apache::lonhomework::results{"resource.$id.awarded"}+=
504: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
505: }
506: if ($numawards > 0) {
507: $Apache::lonhomework::results{"resource.$id.awarded"}/=
508: $numawards;
509: }
510: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
511: $Apache::lonhomework::results{"resource.$id.tries"} =
512: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
513: $Apache::lonhomework::results{"resource.$id.solved"} =
514: $solvemsg;
515: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
516: } elsif ( $award eq 'INCORRECT' ) {
517: $Apache::lonhomework::results{"resource.$id.tries"} =
518: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
519: if (lc($Apache::lonhomework::problemstatus) eq 'no') {
520: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
521: }
522: $Apache::lonhomework::results{"resource.$id.solved"} =
523: 'incorrect_attempted';
524: } elsif ( $award eq 'SUBMITTED' ) {
525: $Apache::lonhomework::results{"resource.$id.tries"} =
526: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
527: $Apache::lonhomework::results{"resource.$id.solved"} =
528: 'ungraded_attempted';
529: } elsif ( $award eq 'DRAFT' ) {
530: $Apache::lonhomework::results{"resource.$id.solved"} = '';
531: } elsif ( $award eq 'NO_RESPONSE' ) {
532: #no real response so delete any data that got stored
533: &removealldata($id);
534: return '';
535: } else {
536: $Apache::lonhomework::results{"resource.$id.solved"} =
537: 'incorrect_attempted';
538: if (lc($Apache::lonhomework::problemstatus) eq 'no') {
539: $Apache::lonhomework::results{"resource.$id.tries"} =
540: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
541: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
542: }
543: }
544: if (defined($msg)) {
545: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
546: }
547: # did either of the overall awards chage? If so ignore the
548: # previous check
549: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
550: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
551: ($Apache::lonhomework::results{"resource.$id.solved"} eq
552: $Apache::lonhomework::history{"resource.$id.solved"})) {
553: # check if this was a previous submission if it was delete the
554: # unneeded data and update the previously_used attribute
555: if ( $previously_used eq 'PREVIOUSLY_USED') {
556: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
557: delete($Apache::lonhomework::results{"resource.$id.tries"});
558: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
559: }
560: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
561: #delete all data as they student didn't do anything, but save
562: #the list of collaborators.
563: &removealldata($id);
564: #and since they didn't do anything we were never here
565: return '';
566: } else {
567: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
568: }
569: }
570: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
571: /^correct/ ) {
572: #delete all data as they student already has it correct
573: &removealldata($id);
574: #and since they didn't do anything we were never here
575: return '';
576: }
577: $Apache::lonhomework::results{"resource.$id.award"} = $award;
578: }
579:
580: sub grade {
581: my ($target) = @_;
582: my $id = $Apache::inputtags::part;
583: my $response='';
584: if ( defined $ENV{'form.submitted'}) {
585: my (@awards,@msgs);
586: foreach $response (@Apache::inputtags::response) {
587: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
588: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
589: &Apache::lonxml::debug("keeping $value from $response for $id");
590: push (@awards,$value);
591: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
592: &Apache::lonxml::debug("got message $value from $response for $id");
593: push (@msgs,$value);
594: }
595: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
596: my $previously_used;
597: if ( $#Apache::inputtags::previous eq $#awards ) {
598: my $match=0;
599: my @matches;
600: foreach my $versionar (@Apache::inputtags::previous_version) {
601: foreach my $version (@$versionar) {
602: $matches[$version]++;
603: }
604: }
605: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
606: if ($match) {
607: $previously_used = 'PREVIOUSLY_LAST';
608: foreach my $value (@Apache::inputtags::previous) {
609: if ($value eq 'PREVIOUSLY_USED' ) {
610: $previously_used = $value;
611: last;
612: }
613: }
614: }
615: }
616: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
617: &setgradedata($finalaward,$msg,$id,$previously_used);
618: }
619: return '';
620: }
621:
622: sub gradestatus {
623: my ($id,$target) = @_;
624: my $showbutton = 1;
625: my $bgcolor = '';
626: my $message = '';
627: my $latemessage = '';
628: my $trystr='';
629: my $button='';
630: my $previousmsg='';
631:
632: my $status = $Apache::inputtags::status['-1'];
633: &Apache::lonxml::debug("gradestatus has :$status:");
634: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
635: $status ne 'INVALID_ACCESS') {
636: my $award = $Apache::lonhomework::history{"resource.$id.award"};
637: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
638: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
639: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
640: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
641: if ( $award ne '' || $solved ne '') {
642: &Apache::lonxml::debug('Getting message');
643: ($showbutton,$bgcolor,$message,$previousmsg) =
644: &decideoutput($award,$awardmsg,$solved,$previous,$target);
645: if ($target eq 'tex') {
646: $message='\vskip 2 mm '.$message.' ';
647: } else {
648: $message="<td bgcolor=\"$bgcolor\">$message</td>";
649: if ($previousmsg) {
650: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
651: }
652: }
653: }
654: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
655: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
656: &Apache::lonxml::debug("got maxtries of :$maxtries:");
657: #if tries are set to negative turn off the Tries/Button and messages
658: if (defined($maxtries) && $maxtries < 0) { return ''; }
659: if ( $tries eq '' ) { $tries = '0'; }
660: if ( $maxtries eq '' ) { $maxtries = '2'; }
661: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
662: my $tries_text=&mt('Tries');
663: if ( $Apache::lonhomework::type eq 'survey') { $tries_text=&mt('Submissions'); }
664: if ( $showbutton ) {
665: if ($target eq 'tex') {
666: if ($ENV{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam') {
667: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
668: } else {
669: $trystr = '\vskip 0 mm ';
670: }
671: } else {
672: $trystr = "<td><nobr>".$tries_text." $tries";
673: if($ENV{'request.state'} ne 'construct') {
674: $trystr.="/$maxtries";
675: } else {
676: if (defined($Apache::inputtags::params{'maxtries'})) {
677: $trystr.="/".$Apache::inputtags::params{'maxtries'};
678: }
679: }
680: $trystr.="</nobr></td>";
681: }
682: }
683: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
684: if ( $showbutton ) {
685: if ($target ne 'tex') {
686: $button = '<input type="submit" name="submit" value="'.&mt('Submit Answer').'" />';
687: }
688: }
689: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
690: #last submissions was after due date
691: if ($target eq 'tex') {
692: $latemessage=' The last submission was after the Due Date ';
693: } else {
694: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
695: }
696: }
697: }
698: my $output= $previousmsg.$latemessage.$message.$trystr;
699: if ($output =~ /^\s*$/) {
700: return $button;
701: } else {
702: if ($target eq 'tex') {
703: return $button.' \vskip 0 mm '.$output.' ';
704: } else {
705: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
706: }
707: }
708: }
709: 1;
710: __END__
711:
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