1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.167 2005/05/20 18:53:53 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27:
28: package Apache::inputtags;
29: use HTML::Entities();
30: use strict;
31: use Apache::loncommon;
32: use Apache::lonlocal;
33: use Apache::lonnet;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::inputtags',('hiddenline','textfield','textline'));
37: }
38:
39:
40: sub initialize_inputtags {
41: # list of current input ids
42: @Apache::inputtags::input=();
43: # list of all input ids seen in this problem
44: @Apache::inputtags::inputlist=();
45: # list of all current response ids
46: @Apache::inputtags::response=();
47: # list of all response ids seen in this problem
48: @Apache::inputtags::responselist=();
49: # list of whether or not a specific response was previously used
50: @Apache::inputtags::previous=();
51: # submission it was used in
52: @Apache::inputtags::previous_version=();
53: # id of current part, 0 means that no part is current
54: # (inside <problem> only
55: $Apache::inputtags::part='';
56: # list of all part ids seen
57: @Apache::inputtags::partlist=();
58: # list of problem date statuses, the first element is for <problem>
59: # if there is a second element it is for the current <part>
60: @Apache::inputtags::status=();
61: # hash of defined params for the current response
62: %Apache::inputtags::params=();
63: # list of all ids, for <import>, these get join()ed and prepended
64: @Apache::inputtags::import=();
65: # list of all import ids seen
66: @Apache::inputtags::importlist=();
67: # just used to note whether we have seen a response that isn't in a part
68: $Apache::inputtags::response_with_no_part=0;
69: # storage location so the begin <*response> tag can generate the correct
70: # answer string for display by the <textline />
71: %Apache::inputtags::answertxt=();
72: }
73:
74: sub check_for_duplicate_ids {
75: my %check;
76: foreach my $id (@Apache::inputtags::partlist,
77: @Apache::inputtags::responselist,
78: @Apache::inputtags::importlist) {
79: $check{$id}++;
80: }
81: my @duplicates;
82: foreach my $id (sort(keys(%check))) {
83: if ($check{$id} > 1) {
84: push(@duplicates,$id);
85: }
86: }
87: if (@duplicates) {
88: &Apache::lonxml::error("Duplicated ids found, problem will operate incorrectly. Duplicated ids seen: ",join(', ',@duplicates));
89: }
90: }
91:
92: sub start_input {
93: my ($parstack,$safeeval)=@_;
94: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
95: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
96: push (@Apache::inputtags::input,$id);
97: push (@Apache::inputtags::inputlist,$id);
98: return $id;
99: }
100:
101: sub end_input {
102: pop @Apache::inputtags::input;
103: return '';
104: }
105:
106: sub addchars {
107: my ($fieldid,$addchars)=@_;
108: my $output='';
109: foreach (split(/\,/,$addchars)) {
110: $output.='<a href="javascript:void(document.forms.lonhomework.'.
111: $fieldid.'.value+=\''.$_.'\')">'.$_.'</a> ';
112: }
113: return $output;
114: }
115:
116: sub start_textfield {
117: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
118: my $result = "";
119: my $id = &start_input($parstack,$safeeval);
120: my $resid=$Apache::inputtags::response[-1];
121: if ($target eq 'web') {
122: $Apache::lonxml::evaluate--;
123: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
124: my $partid=$Apache::inputtags::part;
125: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"},'<>&"');
126: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
127: if ( $cols eq '') { $cols = 80; }
128: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
129: if ( $rows eq '') { $rows = 16; }
130: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
131: $result='';
132: if ($addchars) {
133: $result.=&addchars('HWVAL_'.$resid,$addchars);
134: }
135: push @Apache::lonxml::htmlareafields,'HWVAL_'.$resid;
136: $result.= '<textarea wrap="hard" name="HWVAL_'.$resid.'" id="HWVAL_'.$resid.'" '.
137: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
138: if ($oldresponse ne '') {
139:
140: #get rid of any startup text if the user has already responded
141: &Apache::lonxml::get_all_text("/textfield",$parser);
142: }
143: } else {
144: #right or wrong don't show it
145: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
146: $result='';
147: #get rid of any startup text
148: &Apache::lonxml::get_all_text("/textfield",$parser);
149: }
150: } elsif ($target eq 'grade') {
151: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
152: if ($seedtext eq $env{'form.HWVAL_'.$resid}) {
153: # if the seed text is still there it wasn't a real submission
154: $env{'form.HWVAL_'.$resid}='';
155: }
156: } elsif ($target eq 'edit') {
157: $result.=&Apache::edit::tag_start($target,$token);
158: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
159: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
160: $result.=&Apache::edit::text_arg
161: ('Click-On Texts (comma sep):','addchars',$token,10);
162: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
163: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
164: } elsif ($target eq 'modified') {
165: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
166: $safeeval,'rows','cols',
167: 'addchars');
168: if ($constructtag) {
169: $result = &Apache::edit::rebuild_tag($token);
170: } else {
171: $result=$token->[4];
172: }
173: $result.=&Apache::edit::modifiedfield("/textfield",$parser);
174: } elsif ($target eq 'tex') {
175: my $number_of_lines = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
176: my $width_of_box = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
177: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
178: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
179: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
180: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
181: } else {
182: my $TeXwidth=$width_of_box/80;
183: $result = '\vskip 1 mm \fbox{\fbox{\parbox{'.$TeXwidth.'\textwidth-5mm}{';
184: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
185: $result.='}}}\vskip 2 mm ';
186: }
187: }
188: return $result;
189: }
190:
191: sub end_textfield {
192: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
193: my $result;
194: if ($target eq 'web') {
195: $Apache::lonxml::evaluate++;
196: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
197: return "</textarea>";
198: }
199: } elsif ($target eq 'edit') {
200: $result=&Apache::edit::end_table();
201: }
202: &end_input;
203: return $result;
204: }
205:
206: sub start_textline {
207: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
208: my $result = "";
209: if ($target eq 'web') {
210: $Apache::lonxml::evaluate--;
211: my $partid=$Apache::inputtags::part;
212: my $id=$Apache::inputtags::response[-1];
213: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
214: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
215: my $maxlength;
216: if ($size eq '') { $size=20; } else {
217: if ($size < 20) { $maxlength=$size; }
218: }
219: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
220: if ($Apache::lonhomework::type ne 'exam') {
221: my $addchars=&Apache::lonxml::get_param('addchars',$parstack,$safeeval);
222: $result='';
223: if ($addchars) {
224: $result.=&addchars('HWVAL_'.$id,$addchars);
225: }
226: my $readonly=&Apache::lonxml::get_param('readonly',$parstack,
227: $safeeval);
228: if (lc($readonly) eq 'yes') {
229: $readonly=' readonly="readonly" ';
230: } else {
231: $readonly='';
232: }
233: $result.= '<input type="text" '.$readonly.' name="HWVAL_'.$id.'" value="'.
234: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
235: }
236: } else {
237: #right or wrong don't show what was last typed in.
238: $result='<i>'.$Apache::inputtags::answertxt{$id}.'</i>';
239: #$result='';
240: }
241: } elsif ($target eq 'edit') {
242: $result=&Apache::edit::tag_start($target,$token);
243: $result.=&Apache::edit::text_arg('Size:','size',$token,'5').
244: &Apache::edit::text_arg('Click-On Texts (comma sep):',
245: 'addchars',$token,10);
246: $result.=&Apache::edit::select_arg('Readonly:','readonly',
247: ['no','yes'],$token);
248: $result.=&Apache::edit::end_row();
249: $result.=&Apache::edit::end_table();
250: } elsif ($target eq 'modified') {
251: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
252: $safeeval,'size',
253: 'addchars','readonly');
254: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
255: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
256: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
257: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
258: $result='\framebox['.$size.'][s]{\tiny\strut}';
259: }
260: return $result;
261: }
262:
263: sub end_textline {
264: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
265: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
266: elsif ($target eq 'edit') { return ('','no'); }
267: return "";
268: }
269:
270: sub start_hiddenline {
271: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
272: my $result = "";
273: if ($target eq 'web') {
274: $Apache::lonxml::evaluate--;
275: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
276: my $partid=$Apache::inputtags::part;
277: my $id=$Apache::inputtags::response[-1];
278: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"},'<>&"');
279: if ($Apache::lonhomework::type ne 'exam') {
280: $result= '<input type="hidden" name="HWVAL_'.$id.'" value="'.
281: $oldresponse.'" />';
282: }
283: }
284: } elsif ($target eq 'edit') {
285: $result=&Apache::edit::tag_start($target,$token);
286: $result.=&Apache::edit::end_table;
287: }
288: return $result;
289: }
290:
291: sub end_hiddenline {
292: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
293: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
294: elsif ($target eq 'edit') { return ('','no'); }
295: return "";
296: }
297:
298: # $part -> partid
299: # $id -> responseid
300: # $uploadefiletypes -> comma seperated list of extensions allowed or * for any
301: # $which -> 'uploadedonly' -> only newly uploaded files
302: # 'portfolioonly' -> only allow files from portfolio
303: # 'both' -> allow files from either location
304: # returns a table row <tr>
305: sub file_selector {
306: my ($part,$id,$uploadedfiletypes,$which)=@_;
307: if (!$uploadedfiletypes) { return ''; }
308:
309: my $jspart=$part;
310: $jspart=~s/\./_/g;
311:
312: my $result;
313:
314: $result.='<tr><td>';
315: if ($uploadedfiletypes ne '*') {
316: $result.=
317: &mt('Allowed filetypes: <b>[_1]</b>',$uploadedfiletypes).'<br />';
318: }
319: if ($which eq 'uploadonly' || $which eq 'both') {
320: $result.=&mt('Submit a file: (only one file can be uploaded)').
321: ' <br /><input type="file" size="50" name="HWFILE'.
322: $jspart.'_'.$id.'" /><br />';
323: my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"},'<>&"');
324:
325: if ($uploadedfile) {
326: my $url=$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
327: push (@Apache::lonxml::extlinks,$url);
328: &Apache::lonnet::allowuploaded('/adm/essayresponse',$url);
329: my $icon=&Apache::loncommon::icon($url);
330: my $curfile='<a href="'.$url.'"><img src="'.$icon.
331: '" border="0" />'.$uploadedfile.'</a>';
332: $result.=&mt('Currently submitted: <tt>[_1]</tt>',$curfile);
333: } else {
334: #$result.=&mt('(Hand in a file you have prepared on your computer)');
335: }
336: }
337: if ( $which eq 'both') {
338: $result.='<br />'.'<strong>'.&mt('OR:').'</strong><br />';
339: }
340: if ($which eq 'portfolioonly' || $which eq 'both') {
341: $result.='<a href='."'".'javascript:void(window.open("/adm/portfolio?mode=selectfile&fieldname=HWPORT'.$jspart.'_'.$id.'","cat","height=600,width=800,scrollbars=1,resizable=1,menubar=2,location=1"))'."'".'>'.
342: &mt('Select Portfolio Files').'</a><br />'.
343: '<input type="text" size="50" name="HWPORT'.$jspart.'_'.$id.'" value="" />'.
344: '<br />';
345: if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}=~/[^\s]/){
346: my @filelist;
347: foreach my $file (split(',',&Apache::lonnet::unescape($Apache::lonhomework::history{"resource.$part.$id.portfiles"}))) {
348: my (undef,undef,$domain,$user)=&Apache::lonxml::whichuser();
349: my $url="/uploaded/$domain/$user/portfolio$file";
350: my $icon=&Apache::loncommon::icon($url);
351: push(@filelist,'<a href="'.$url.'"><img src="'.$icon.
352: '" border="0" />'.$file.'</a>');
353: }
354: $result.=&mt("Portfolio files previously selected: <strong>[_1]</strong>",join(', ',@filelist));
355: }
356: }
357: $result.='</td></tr>';
358: return $result;
359: }
360:
361: sub checkstatus {
362: my ($value,$awardref,$msgref)=@_;
363: for (my $i=0;$i<=$#$awardref;$i++) {
364: if ($$awardref[$i] eq $value) {
365: return ($$awardref[$i],$$msgref[$i]);
366: }
367: }
368: return(undef,undef);
369: }
370:
371: sub finalizeawards {
372: my ($awardref,$msgref)=@_;
373: my $result=undef;
374: my $award;
375: my $msg;
376: if ($#$awardref == -1) { $result = "NO_RESPONSE"; }
377: if ($result eq '' ) {
378: my $blankcount;
379: foreach $award (@$awardref) {
380: if ($award eq '') {
381: $result='MISSING_ANSWER';
382: $blankcount++;
383: }
384: }
385: if ($blankcount == ($#$awardref + 1)) { $result = 'NO_RESPONSE'; }
386: }
387: if (defined($result)) { return ($result,$msg); }
388: foreach my $possibleaward ('MISSING_ANSWER', 'ERROR', 'NO_RESPONSE',
389: 'TOO_LONG', 'UNIT_INVALID_INSTRUCTOR',
390: 'UNIT_INVALID_STUDENT', 'UNIT_IRRECONCIBLE',
391: 'UNIT_FAIL', 'NO_UNIT',
392: 'UNIT_NOTNEEDED', 'WANTED_NUMERIC',
393: 'BAD_FORMULA', 'SIG_FAIL', 'INCORRECT',
394: 'MISORDERED_RANK', 'INVALID_FILETYPE',
395: 'DRAFT', 'SUBMITTED', 'ASSIGNED_SCORE',
396: 'APPROX_ANS', 'EXACT_ANS','COMMA_FAIL') {
397: ($result,$msg)=&checkstatus($possibleaward,$awardref,$msgref);
398: if (defined($result)) { return ($result,$msg); }
399: }
400: return ('ERROR',undef);
401: }
402:
403: sub decideoutput {
404: my ($award,$awardmsg,$solved,$previous,$target)=@_;
405: my $message='';
406: my $button=0;
407: my $previousmsg;
408: my $bgcolor='orange';
409: my $added_computer_text=0;
410: my %possiblecolors =
411: ( 'correct' => '#aaffaa',
412: 'charged_try' => '#ffaaaa',
413: 'not_charged_try' => '#ffffaa',
414: 'no_message' => '#fffff',
415: );
416: if ($previous) { $previousmsg=&mt('You have entered that answer before'); }
417:
418: if ($solved =~ /^correct/) {
419: if ($award eq 'ASSIGNED_SCORE') {
420: $message = &mt("A score has been assigned.");
421: } else {
422: if ($target eq 'tex') {
423: $message = '\textbf{'.&mt('You are correct.').'}';
424: } else {
425: $message = "<b>".&mt('You are correct.')."</b>";
426: $message.=" ".&mt("Computer's answer now shown above.");
427: }
428: $added_computer_text=1;
429: unless ($env{'course.'.
430: $env{'request.course.id'}.
431: '.disable_receipt_display'} eq 'yes') {
432: $message.=(($target eq 'web')?'<br />':' ').
433: &mt('Your receipt is').' '.&Apache::lonnet::receipt($Apache::inputtags::part).
434: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
435: }
436: }
437: $bgcolor=$possiblecolors{'correct'};
438: $button=0;
439: $previousmsg='';
440: } elsif ($solved =~ /^excused/) {
441: if ($target eq 'tex') {
442: $message = ' \textbf{'.&mt('You are excused from the problem.').'} ';
443: } else {
444: $message = "<b>".&mt('You are excused from the problem.')."</b>";
445: }
446: $bgcolor=$possiblecolors{'charged_try'};
447: $button=0;
448: $previousmsg='';
449: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
450: if ($solved =~ /^incorrect/ || $solved eq '') {
451: $message = &mt("Incorrect").".";
452: $bgcolor=$possiblecolors{'charged_try'};
453: $button=1;
454: } else {
455: if ($target eq 'tex') {
456: $message = '\textbf{'.&mt('You are correct.').'}';
457: } else {
458: $message = "<b>".&mt('You are correct.')."</b>";
459: $message.=" ".&mt("Computer's answer now shown above.");
460: }
461: $added_computer_text=1;
462: unless ($env{'course.'.
463: $env{'request.course.id'}.
464: '.disable_receipt_display'} eq 'yes') {
465: $message.=(($target eq 'web')?'<br />':' ').
466: 'Your receipt is '.&Apache::lonnet::receipt($Apache::inputtags::part).
467: (($target eq 'web')?&Apache::loncommon::help_open_topic('Receipt'):'');
468: }
469: $bgcolor=$possiblecolors{'correct'};
470: $button=0;
471: $previousmsg='';
472: }
473: } elsif ($award eq 'NO_RESPONSE') {
474: $message = '';
475: $bgcolor=$possiblecolors{'no_feedback'};
476: $button=1;
477: } elsif ($award eq 'MISSING_ANSWER') {
478: $message = &mt('Some items were not submitted.');
479: $bgcolor=$possiblecolors{'not_charged_try'};
480: $button = 1;
481: } elsif ($award eq 'ERROR') {
482: $message = &mt('An error occured while grading your answer.');
483: $bgcolor=$possiblecolors{'not_charged_try'};
484: $button = 1;
485: } elsif ($award eq 'TOO_LONG') {
486: $message = &mt("The submitted answer was too long.");
487: $bgcolor=$possiblecolors{'not_charged_try'};
488: $button=1;
489: } elsif ($award eq 'WANTED_NUMERIC') {
490: $message = &mt("This question expects a numeric answer.");
491: $bgcolor=$possiblecolors{'not_charged_try'};
492: $button=1;
493: } elsif ($award eq 'MISORDERED_RANK') {
494: $message = &mt('You have provided an invalid ranking');
495: if ($target ne 'tex') {
496: $message.=', '.&mt('please refer to').' '.&Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems');
497: }
498: $bgcolor=$possiblecolors{'not_charged_try'};
499: $button=1;
500: } elsif ($award eq 'INVALID_FILETYPE') {
501: $message = &mt('Submission won\'t be graded. The type of file submitted is not allowed.');
502: $bgcolor=$possiblecolors{'not_charged_try'};
503: $button=1;
504: } elsif ($award eq 'SIG_FAIL') {
505: my ($used,$min,$max)=split(':',$awardmsg);
506: my $word;
507: if ($used < $min) { $word=&mt('more'); }
508: if ($used > $max) { $word=&mt('fewer'); }
509: $message = &mt("Submission not graded. Use [_2] digits.",$used,$word);
510: $bgcolor=$possiblecolors{'not_charged_try'};
511: $button=1;
512: } elsif ($award eq 'UNIT_INVALID_INSTRUCTOR') {
513: $message = &mt('Error in instructor specifed unit. This error has been reported to the instructor.', $awardmsg);
514: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
515: $bgcolor=$possiblecolors{'not_charged_try'};
516: $button=1;
517: } elsif ($award eq 'UNIT_INVALID_STUDENT') {
518: $message = &mt('Unable to interpret units. Computer reads units as "[_1]".',&markup_unit($awardmsg,$target));
519: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
520: $bgcolor=$possiblecolors{'not_charged_try'};
521: $button=1;
522: } elsif ($award eq 'UNIT_FAIL' || $award eq 'UNIT_IRRECONCIBLE') {
523: $message = &mt('Incompatible units. No conversion found between "[_1]" and the required units.',&markup_unit($awardmsg,$target));
524: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units');}
525: $bgcolor=$possiblecolors{'not_charged_try'};
526: $button=1;
527: } elsif ($award eq 'UNIT_NOTNEEDED') {
528: $message = &mt('Only a number required. Computer reads units of "[_1]".',&markup_unit($awardmsg,$target));
529: $bgcolor=$possiblecolors{'not_charged_try'};
530: $button=1;
531: } elsif ($award eq 'NO_UNIT') {
532: $message = &mt("Units required").'.';
533: if ($target ne 'tex') {$message.=&Apache::loncommon::help_open_topic('Physical_Units')};
534: $bgcolor=$possiblecolors{'not_charged_try'};
535: $button=1;
536: } elsif ($award eq 'COMMA_FAIL') {
537: $message = &mt("Proper comma separation is required").'.';
538: $bgcolor=$possiblecolors{'not_charged_try'};
539: $button=1;
540: } elsif ($award eq 'BAD_FORMULA') {
541: $message = &mt("Unable to understand formula");
542: $bgcolor=$possiblecolors{'not_charged_try'};
543: $button=1;
544: } elsif ($award eq 'INCORRECT') {
545: $message = &mt("Incorrect").'.';
546: $bgcolor=$possiblecolors{'charged_try'};
547: $button=1;
548: } elsif ($award eq 'SUBMITTED') {
549: $message = &mt("Your submission has been recorded.");
550: $bgcolor=$possiblecolors{'correct'};
551: $button=1;
552: } elsif ($award eq 'DRAFT') {
553: $message = &mt("A draft copy has been saved.");
554: $bgcolor=$possiblecolors{'not_charged_try'};
555: $button=1;
556: } elsif ($award eq 'ASSIGNED_SCORE') {
557: $message = &mt("A score has been assigned.");
558: $bgcolor=$possiblecolors{'correct'};
559: $button=0;
560: } elsif ($award eq '') {
561: $bgcolor=$possiblecolors{'not_charged_try'};
562: $button=1;
563: } else {
564: $message = &mt("Unknown message").": $award";
565: $button=1;
566: }
567: if (lc($Apache::lonhomework::problemstatus) eq 'no' &&
568: $Apache::inputtags::status[-1] ne 'SHOW_ANSWER') {
569: $message = &mt("Answer Submitted: Your final submission will be graded after the due date.");
570: $bgcolor=$possiblecolors{'correct'};
571: $button=1;
572: }
573: if ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER' &&
574: !$added_computer_text && $target ne 'tex') {
575: $message.=" ".&mt("Computer's answer now shown above.");
576: $added_computer_text=1;
577: }
578: return ($button,$bgcolor,$message,$previousmsg);
579: }
580:
581: sub markup_unit {
582: my ($unit,$target)=@_;
583: if ($target eq 'tex') {
584: return '\texttt{'.&Apache::lonxml::latex_special_symbols($unit).'}';
585: } else {
586: return "<tt>".$unit."</tt>";
587: }
588: }
589:
590: sub removealldata {
591: my ($id)=@_;
592: foreach my $key (keys(%Apache::lonhomework::results)) {
593: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
594: &Apache::lonxml::debug("Removing $key");
595: delete($Apache::lonhomework::results{$key});
596: }
597: }
598: }
599:
600: sub hidealldata {
601: my ($id)=@_;
602: foreach my $key (keys(%Apache::lonhomework::results)) {
603: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
604: &Apache::lonxml::debug("Hidding $key");
605: my $newkey=$key;
606: $newkey=~s/^(resource\.\Q$id\E\.[^\.]+\.)(.*)$/${1}hidden${2}/;
607: $Apache::lonhomework::results{$newkey}=
608: $Apache::lonhomework::results{$key};
609: delete($Apache::lonhomework::results{$key});
610: }
611: }
612: }
613:
614: sub setgradedata {
615: my ($award,$msg,$id,$previously_used) = @_;
616: if ($Apache::lonhomework::scantronmode &&
617: &Apache::lonnet::validCODE($env{'form.CODE'})) {
618: $Apache::lonhomework::results{"resource.CODE"}=$env{'form.CODE'};
619: } elsif ($Apache::lonhomework::scantronmode &&
620: $env{'form.CODE'} eq '' &&
621: $Apache::lonhomework::history{"resource.CODE"} ne '') {
622: $Apache::lonhomework::results{"resource.CODE"}='';
623: }
624:
625: if (!$Apache::lonhomework::scantronmode &&
626: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
627: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
628: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
629: return '';
630: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
631: /^correct/ || $Apache::lonhomework::scantronmode ||
632: lc($Apache::lonhomework::problemstatus) eq 'no') {
633: # the student doesn't already have it correct,
634: # or we are in a mode (scantron orno problem status) where a correct
635: # can become incorrect
636: # handle assignment of tries and solved status
637: my $solvemsg;
638: if ($Apache::lonhomework::scantronmode) {
639: $solvemsg='correct_by_scantron';
640: } else {
641: $solvemsg='correct_by_student';
642: }
643: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
644: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
645: }
646: if ( $award eq 'ASSIGNED_SCORE') {
647: $Apache::lonhomework::results{"resource.$id.tries"} =
648: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
649: $Apache::lonhomework::results{"resource.$id.solved"} =
650: $solvemsg;
651: my $numawards=scalar(@Apache::inputtags::response);
652: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
653: foreach my $res (@Apache::inputtags::response) {
654: $Apache::lonhomework::results{"resource.$id.awarded"}+=
655: $Apache::lonhomework::results{"resource.$id.$res.awarded"};
656: }
657: if ($numawards > 0) {
658: $Apache::lonhomework::results{"resource.$id.awarded"}/=
659: $numawards;
660: }
661: } elsif ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
662: $Apache::lonhomework::results{"resource.$id.tries"} =
663: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
664: $Apache::lonhomework::results{"resource.$id.solved"} =
665: $solvemsg;
666: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
667: } elsif ( $award eq 'INCORRECT' ) {
668: $Apache::lonhomework::results{"resource.$id.tries"} =
669: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
670: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
671: $Apache::lonhomework::scantronmode) {
672: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
673: }
674: $Apache::lonhomework::results{"resource.$id.solved"} =
675: 'incorrect_attempted';
676: } elsif ( $award eq 'SUBMITTED' ) {
677: $Apache::lonhomework::results{"resource.$id.tries"} =
678: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
679: $Apache::lonhomework::results{"resource.$id.solved"} =
680: 'ungraded_attempted';
681: } elsif ( $award eq 'DRAFT' ) {
682: $Apache::lonhomework::results{"resource.$id.solved"} = '';
683: } elsif ( $award eq 'NO_RESPONSE' ) {
684: #no real response so delete any data that got stored
685: &removealldata($id);
686: return '';
687: } else {
688: $Apache::lonhomework::results{"resource.$id.solved"} =
689: 'incorrect_attempted';
690: if (lc($Apache::lonhomework::problemstatus) eq 'no' ||
691: $Apache::lonhomework::scantronmode) {
692: $Apache::lonhomework::results{"resource.$id.tries"} =
693: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
694: $Apache::lonhomework::results{"resource.$id.awarded"} = 0;
695: }
696: }
697: if (defined($msg)) {
698: $Apache::lonhomework::results{"resource.$id.awardmsg"} = $msg;
699: }
700: # did either of the overall awards chage? If so ignore the
701: # previous check
702: if (($Apache::lonhomework::results{"resource.$id.awarded"} eq
703: $Apache::lonhomework::history{"resource.$id.awarded"}) &&
704: ($Apache::lonhomework::results{"resource.$id.solved"} eq
705: $Apache::lonhomework::history{"resource.$id.solved"})) {
706: # check if this was a previous submission if it was delete the
707: # unneeded data and update the previously_used attribute
708: if ( $previously_used eq 'PREVIOUSLY_USED') {
709: if (lc($Apache::lonhomework::problemstatus) ne 'no') {
710: delete($Apache::lonhomework::results{"resource.$id.tries"});
711: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
712: }
713: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
714: #delete all data as they student didn't do anything, but save
715: #the list of collaborators.
716: &removealldata($id);
717: #and since they didn't do anything we were never here
718: return '';
719: } else {
720: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
721: }
722: }
723: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
724: /^correct/ ) {
725: #delete all data as they student already has it correct
726: &removealldata($id);
727: #and since they didn't do anything we were never here
728: return '';
729: }
730: $Apache::lonhomework::results{"resource.$id.award"} = $award;
731: }
732:
733: sub grade {
734: my ($target) = @_;
735: my $id = $Apache::inputtags::part;
736: my $response='';
737: if ( defined $env{'form.submitted'}) {
738: my (@awards,@msgs);
739: foreach $response (@Apache::inputtags::response) {
740: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
741: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
742: &Apache::lonxml::debug("keeping $value from $response for $id");
743: push (@awards,$value);
744: $value=$Apache::lonhomework::results{"resource.$id.$response.awardmsg"};
745: &Apache::lonxml::debug("got message $value from $response for $id");
746: push (@msgs,$value);
747: }
748: my ($finalaward,$msg) = &finalizeawards(\@awards,\@msgs);
749: my $previously_used;
750: if ( $#Apache::inputtags::previous eq $#awards ) {
751: my $match=0;
752: my @matches;
753: foreach my $versionar (@Apache::inputtags::previous_version) {
754: foreach my $version (@$versionar) {
755: $matches[$version]++;
756: }
757: }
758: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
759: if ($match) {
760: $previously_used = 'PREVIOUSLY_LAST';
761: foreach my $value (@Apache::inputtags::previous) {
762: if ($value eq 'PREVIOUSLY_USED' ) {
763: $previously_used = $value;
764: last;
765: }
766: }
767: }
768: }
769: &Apache::lonxml::debug("final award $finalaward, $previously_used, message $msg");
770: &setgradedata($finalaward,$msg,$id,$previously_used);
771: }
772: return '';
773: }
774:
775: sub gradestatus {
776: my ($id,$target) = @_;
777: my $showbutton = 1;
778: my $bgcolor = '';
779: my $message = '';
780: my $latemessage = '';
781: my $trystr='';
782: my $button='';
783: my $previousmsg='';
784:
785: my $status = $Apache::inputtags::status['-1'];
786: &Apache::lonxml::debug("gradestatus has :$status:");
787: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE' &&
788: $status ne 'INVALID_ACCESS') {
789: my $award = $Apache::lonhomework::history{"resource.$id.award"};
790: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
791: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
792: my $awardmsg = $Apache::lonhomework::history{"resource.$id.awardmsg"};
793: &Apache::lonxml::debug("Found Award |$award|$solved|$awardmsg");
794: if ( $award ne '' || $solved ne '' || $status eq 'SHOW_ANSWER') {
795: &Apache::lonxml::debug('Getting message');
796: ($showbutton,$bgcolor,$message,$previousmsg) =
797: &decideoutput($award,$awardmsg,$solved,$previous,$target);
798: if ($target eq 'tex') {
799: $message='\vskip 2 mm '.$message.' ';
800: } else {
801: $message="<td bgcolor=\"$bgcolor\">$message</td>";
802: if ($previousmsg) {
803: $previousmsg="<td bgcolor=\"#aaaaff\">$previousmsg</td>";
804: }
805: }
806: }
807: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
808: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
809: &Apache::lonxml::debug("got maxtries of :$maxtries:");
810: #if tries are set to negative turn off the Tries/Button and messages
811: if (defined($maxtries) && $maxtries < 0) { return ''; }
812: if ( $tries eq '' ) { $tries = '0'; }
813: if ( $maxtries eq '' ) { $maxtries = '2'; }
814: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
815: my $tries_text=&mt('Tries');
816: if ( $Apache::lonhomework::type eq 'survey' ||
817: $Apache::lonhomework::parsing_a_task) {
818: $tries_text=&mt('Submissions');
819: }
820: if ( $showbutton ) {
821: if ($target eq 'tex') {
822: if ($env{'request.state'} ne "construct" && $Apache::lonhomework::type ne 'exam' && $env{'form.suppress_tries'} ne 'yes') {
823: $trystr = ' {\vskip 1 mm \small \textit{'.$tries_text.'} '.$tries.'/'.$maxtries.'} \vskip 2 mm ';
824: } else {
825: $trystr = '\vskip 0 mm ';
826: }
827: } else {
828: $trystr = "<td><nobr>".$tries_text." $tries";
829: if ($Apache::lonhomework::parsing_a_task) {
830: } elsif($env{'request.state'} ne 'construct') {
831: $trystr.="/$maxtries";
832: } else {
833: if (defined($Apache::inputtags::params{'maxtries'})) {
834: $trystr.="/".$Apache::inputtags::params{'maxtries'};
835: }
836: }
837: $trystr.="</nobr></td>";
838: }
839: }
840: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
841: if ( $showbutton ) {
842: if ($target ne 'tex') {
843: $button = '<input type="submit" name="submit_'.$id.'" value="'.&mt('Submit Answer').'" />';
844: }
845: }
846: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
847: #last submissions was after due date
848: $latemessage=&mt(' The last submission was after the Due Date ');;
849: if ($target eq 'web') {
850: $latemessage='<td bgcolor="#ffaaaa">'.$latemessage.'</td>';
851: }
852: }
853: }
854: my $output= $previousmsg.$latemessage.$message.$trystr;
855: if ($output =~ /^\s*$/) {
856: return $button;
857: } else {
858: if ($target eq 'tex') {
859: return $button.' \vskip 0 mm '.$output.' ';
860: } else {
861: return '<table><tr><td>'.$button.'</td>'.$output.'</tr></table>';
862: }
863: }
864: }
865: 1;
866: __END__
867:
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