File:
[LON-CAPA] /
loncom /
homework /
response.pm
Revision
1.210:
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Tue Dec 23 18:09:36 2008 UTC (15 years, 4 months ago) by
raeburn
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CVS tags:
HEAD
- Restore pre-1.207 functionality to &mandatory_part_meta().
- Eliminate previously commented out code (commented out in rev 1.34 - 8/2001) - moved to POD in 1.207.
- Eliminate unbalanced 'back' from POD.
- Remove args from subroutine titles in POD items so perldoc underlines them.
- Move POD for &mandatory_part_meta() so it precedes subroutine.
1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.210 2008/12/23 18:09:36 raeburn 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:
29: =pod
30:
31: =head1 NAME
32:
33: Apache::resonse.pm
34:
35: =head1 SYNOPSIS
36:
37: This is part of the LearningOnline Network with CAPA project
38: described at http://www.lon-capa.org.
39:
40:
41: =head1 NOTABLE SUBROUTINES
42:
43: =over
44:
45: =item
46:
47: =back
48:
49: =cut
50:
51:
52: package Apache::response;
53: use strict;
54: use Apache::lonlocal;
55: use Apache::lonnet;
56: use Apache::lonmaxima();
57:
58: BEGIN {
59: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
60: }
61:
62: sub start_response {
63: my ($parstack,$safeeval)=@_;
64: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
65: if ($#Apache::inputtags::import > -1) {
66: &Apache::lonxml::debug("Turning :$id: into");
67: $id = join('_',@Apache::inputtags::import).'_'.$id;
68: &Apache::lonxml::debug("New :$id:");
69: }
70: push (@Apache::inputtags::response,$id);
71: push (@Apache::inputtags::responselist,$id);
72: @Apache::inputtags::inputlist=();
73: if ($Apache::inputtags::part eq '' &&
74: !$Apache::lonhomework::ignore_response_errors) {
75: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
76: }
77: if ($Apache::inputtags::response_with_no_part &&
78: $Apache::inputtags::part ne '0') {
79: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
80: }
81: if ($Apache::inputtags::part eq '0') {
82: $Apache::inputtags::response_with_no_part=1;
83: }
84: return $id;
85: }
86:
87: sub end_response {
88: #pop @Apache::inputtags::response;
89: @Apache::inputtags::inputlist=();
90: return '';
91: }
92:
93: sub start_hintresponse {
94: my ($parstack,$safeeval)=@_;
95: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
96: push (@Apache::inputtags::hint,$id);
97: push (@Apache::inputtags::hintlist,$id);
98: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
99: return $id;
100: }
101:
102: sub end_hintresponse {
103: pop @Apache::inputtags::hint;
104: if (defined($Apache::inputtags::paramstack[-1])) {
105: %Apache::inputtags::params=
106: @{ pop(@Apache::inputtags::paramstack) };
107: }
108: return '';
109: }
110:
111: my @randomseeds;
112: sub pushrandomnumber {
113: my $rand_alg=&Apache::lonnet::get_rand_alg();
114: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
115: $rand_alg eq '64bit2') {
116: # do nothing
117: } else {
118: my @seed=&Math::Random::random_get_seed();
119: push(@randomseeds,\@seed);
120: }
121: &Apache::response::setrandomnumber(@_);
122: }
123: sub poprandomnumber {
124: my $rand_alg=&Apache::lonnet::get_rand_alg();
125: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
126: $rand_alg eq '64bit2') {
127: return;
128: }
129: my $seed=pop(@randomseeds);
130: if ($seed) {
131: &Math::Random::random_set_seed(@$seed);
132: } else {
133: &Apache::lonxml::error("Unable to restore random algorithm.");
134: }
135: }
136:
137: sub setrandomnumber {
138: my ($ignore_id2) = @_;
139: my $rndseed;
140: $rndseed=&Apache::structuretags::setup_rndseed();
141: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
142: &Apache::lonxml::debug("randseed $rndseed");
143: # $rndseed=unpack("%32i",$rndseed);
144: my $rand_alg=&Apache::lonnet::get_rand_alg();
145: my ($rndmod,$rndmod2);
146:
147: my ($id1,$id2,$shift_amt);
148: if ($Apache::lonhomework::parsing_a_problem) {
149: $id1=$Apache::inputtags::part;
150: if (defined($Apache::inputtags::response[-1])) {
151: $id2=$Apache::inputtags::response[-1];
152: }
153: $shift_amt=scalar(@Apache::inputtags::responselist);
154: } elsif ($Apache::lonhomework::parsing_a_task) {
155: $id1=&Apache::bridgetask::get_dim_id();
156: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
157: $id2=$Apache::bridgetask::instance{$id1}[-1];
158: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
159: } else {
160: $shift_amt=0;
161: }
162: }
163: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
164: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
165: $rand_alg eq '64bit2') {
166: $rndmod=(&Apache::lonnet::numval($id1) << 10);
167: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
168: } elsif ($rand_alg eq '64bit3') {
169: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
171: } elsif ($rand_alg eq '64bit4') {
172: my $shift=(4*$shift_amt)%30;
173: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
174: if (defined($id2)) {
175: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
176: }
177: } else {
178: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
179: }
180:
181: if ($rndseed =~/([,:])/) {
182: my $char=$1;
183: use integer;
184: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
185: $num1+=$rndmod;
186: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
187: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
188: $rndseed=$num1.$char.$num2;
189: } else {
190: $rndseed+=$rndmod;
191: if($Apache::lonnet::_64bit) {
192: use integer;
193: $rndseed=(($rndseed<<32)>>32);
194: }
195: }
196: &Apache::lonxml::debug("randseed $rndmod $rndseed");
197: &Apache::lonnet::setup_random_from_rndseed($rndseed);
198: return '';
199: }
200:
201: sub meta_parameter_write {
202: my ($name,$type,$default,$display)=@_;
203: my $partref=$Apache::inputtags::part;
204: my $result='<parameter part="'.$Apache::inputtags::part.'"';
205: if (defined($Apache::inputtags::response[-1])) {
206: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
207: $partref.='_'.$Apache::inputtags::response[-1];
208: }
209: $result.= ' name="'.$name.'"'.
210: ' type="'.$type.'"'.
211: (defined($default)?' default="'.$default.'"':'').
212: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
213: .'></parameter>'
214: ."\n";
215: return $result;
216: }
217:
218: sub meta_package_write {
219: my $name=shift;
220: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
221: if(defined($Apache::inputtags::response[-1])) {
222: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
223: }
224: $result.=' package="'.$name.'"></parameter>'."\n";
225: return $result;
226: }
227:
228: sub meta_stores_write {
229: my ($name,$type,$display)=@_;
230: my $partref=$Apache::inputtags::part;
231: my $result = '<stores part="'.$Apache::inputtags::part.'"';
232: if (defined($Apache::inputtags::response[-1])) {
233: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
234: $partref.='_'.$Apache::inputtags::response[-1];
235: }
236: $result.= ' name="'.$name.'"'.
237: ' type="'.$type.'"'.
238: ' display="'.$display.' [Part: '.$partref.']"'.
239: "></stores>\n";
240: }
241:
242: =pod
243:
244: =item mandatory_part_meta()
245:
246: Autogenerate metadata for mandatory
247: input (from RAT or lonparmset) and
248: output (to lonspreadsheet)
249: of each part
250:
251: Note: responseid-specific data 'submission' and 'awarddetail'
252: not available to spreadsheet -> skip here
253:
254: =cut
255:
256:
257: sub mandatory_part_meta {
258: return &meta_package_write('part').
259: &meta_stores_write('solved','string','Problem Status').
260: &meta_stores_write('tries','int_zeropos','Number of Attempts').
261: &meta_stores_write('awarded','float','Partial Credit Factor');
262: }
263:
264: sub meta_part_order {
265: if (@Apache::inputtags::partlist) {
266: my @parts=@Apache::inputtags::partlist;
267: shift(@parts);
268: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
269: } else {
270: return '<partorder>0</partorder>'."\n";
271: }
272: }
273:
274: sub meta_response_order {
275: if (@Apache::inputtags::responselist) {
276: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
277: '</responseorder>'."\n";
278: }
279: }
280:
281: sub check_for_previous {
282: my ($curresponse,$partid,$id,$last) = @_;
283: my %previous;
284: $previous{'used'} = 0;
285: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
286: if ($key =~ /resource\.$partid\.$id\.submission$/) {
287: if ( $last && $key =~ /^(\d+):/ ) {
288: next if ($1 >= $last);
289: }
290: &Apache::lonxml::debug("Trying $key");
291: my $pastresponse=$Apache::lonhomework::history{$key};
292: if ($pastresponse eq $curresponse) {
293: $previous{'used'} = 1;
294: my $history;
295: if ( $key =~ /^(\d+):/ ) {
296: $history=$1;
297: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
298: $previous{'last'}='0';
299: push(@{ $previous{'version'} },$history);
300: } else {
301: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
302: $previous{'last'}='1';
303: }
304: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
305: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
306: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
307: }
308: }
309: }
310: &Apache::lonhomework::showhash(%previous);
311: return %previous;
312: }
313:
314: sub handle_previous {
315: my ($previous,$ad)=@_;
316: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
317: if ($$previous{'last'}) {
318: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
319: push(@Apache::inputtags::previous_version,$$previous{'version'});
320: } elsif ($Apache::lonhomework::type ne 'survey') {
321: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
322: push(@Apache::inputtags::previous_version,$$previous{'version'});
323: }
324: }
325: }
326:
327: sub view_or_modify {
328: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
329: my $myself=0;
330: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
331: $myself=1;
332: }
333: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
334: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
335: if ($mgr) { return "M"; }
336: if ($vgr) { return "V"; }
337: if ($myself) { return "V"; }
338: return '';
339: }
340:
341: sub start_dataresponse {
342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
343: my $id = &Apache::response::start_response($parstack,$safeeval);
344: my $result;
345: if ($target eq 'web') {
346: $result = $token->[2]->{'display'}.':';
347: } elsif ($target eq 'meta') {
348: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
349: $token->[2]->{'type'},
350: $token->[2]->{'display'});
351: $result .= &Apache::response::meta_package_write('dataresponse');
352: }
353: return $result;
354: }
355:
356: sub end_dataresponse {
357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
358: my $result;
359: if ( $target eq 'web' ) {
360: } elsif ($target eq 'grade' ) {
361: if ( defined $env{'form.submitted'}) {
362: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
363: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
364: if ($allowed) {
365: &Apache::response::setup_params('dataresponse',$safeeval);
366: my $partid = $Apache::inputtags::part;
367: my $id = $Apache::inputtags::response['-1'];
368: my $response = $env{'form.HWVAL_'.$id};
369: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
370: if ( $response =~ /[^\s]/) {
371: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
372: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
373: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
374: }
375: } else {
376: $result='Not Permitted to change values.'
377: }
378: }
379: }
380: &Apache::response::end_response;
381: return $result;
382: }
383:
384: sub start_customresponse {
385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
386: my $id = &Apache::response::start_response($parstack,$safeeval);
387: push(@Apache::lonxml::namespace,'customresponse');
388: my $result;
389: @Apache::response::custom_answer=();
390: @Apache::response::custom_answer_type=();
391: &Apache::lonxml::register('Apache::response',('answer'));
392: if ($target eq 'web') {
393: if ( &Apache::response::show_answer() ) {
394: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
395: $safeeval);
396: $Apache::inputtags::answertxt{$id}=[$answer];
397: }
398: } elsif ($target eq 'edit') {
399: $result.=&Apache::edit::tag_start($target,$token);
400: $result.=&Apache::edit::text_arg('String to display for answer:',
401: 'answerdisplay',$token);
402: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
403: } elsif ($target eq 'modified') {
404: my $constructtag;
405: $constructtag=&Apache::edit::get_new_args($token,$parstack,
406: $safeeval,'answerdisplay');
407: if ($constructtag) {
408: $result = &Apache::edit::rebuild_tag($token);
409: }
410: } elsif ($target eq 'answer' || $target eq 'grade') {
411: &Apache::response::reset_params();
412: } elsif ($target eq 'meta') {
413: $result .= &Apache::response::meta_package_write('customresponse');
414: }
415: return $result;
416: }
417:
418: sub end_customresponse {
419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
420: my $result;
421: my $part=$Apache::inputtags::part;
422: my $id=$Apache::inputtags::response[-1];
423: if ( $target eq 'grade' && &Apache::response::submitted() ) {
424: my $response = &Apache::response::getresponse();
425: if ($Apache::lonhomework::type eq 'exam' ||
426: &Apache::response::submitted('scantron')) {
427: &Apache::response::scored_response($part,$id);
428: } elsif ( $response =~ /[^\s]/ &&
429: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
430: if (!$Apache::lonxml::default_homework_loaded) {
431: &Apache::lonxml::default_homework_load($safeeval);
432: }
433: my %previous = &Apache::response::check_for_previous($response,
434: $part,$id);
435: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
436: $response;
437: my $error;
438: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
439: $response;
440:
441: my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
442: if (!&Apache::inputtags::valid_award($award)) {
443: $error = $award;
444: $award = 'ERROR';
445: }
446: &Apache::response::handle_previous(\%previous,$award);
447: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
448: $award;
449: if ($error) {
450: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
451: $error;
452: }
453: }
454: } elsif ( $target eq 'answer') {
455: $result = &Apache::response::answer_header('customresponse');
456: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
457: $safeeval);
458: if ($env{'form.answer_output_mode'} ne 'tex') {
459: $answer = '<b>'.$answer.'</b>';
460: }
461: $result .= &Apache::response::answer_part('customresponse',$answer);
462: $result .= &Apache::response::answer_footer('customresponse');
463: }
464: if ($target eq 'web') {
465: &setup_prior_tries_hash(\&format_prior_response_math);
466: }
467: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
468: $target eq 'tex' || $target eq 'analyze') {
469: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
470: "$part.$id");
471: if ($target eq 'analyze') {
472: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
473: &Apache::lonhomework::set_bubble_lines();
474: }
475: }
476: pop(@Apache::lonxml::namespace);
477: pop(@Apache::response::custom_answer);
478: pop(@Apache::response::custom_answer_type);
479: &Apache::lonxml::deregister('Apache::response',('answer'));
480: &Apache::response::end_response();
481: return $result;
482: }
483:
484: sub format_prior_response_custom {
485: my ($mode,$answer) =@_;
486: return '<span class="LC_prior_custom">'.
487: &HTML::Entities::encode($answer,'"<>&').'</span>';
488: }
489:
490: sub start_mathresponse {
491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
492: my $id = &Apache::response::start_response($parstack,$safeeval);
493: push(@Apache::lonxml::namespace,'mathresponse');
494: my $result;
495: @Apache::response::custom_answer=();
496: @Apache::response::custom_answer_type=();
497: &Apache::lonxml::register('Apache::response',('answer'));
498: if ($target eq 'web') {
499: if ( &Apache::response::show_answer() ) {
500: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
501: $safeeval);
502: $Apache::inputtags::answertxt{$id}=[$answer];
503: }
504:
505: } elsif ($target eq 'edit') {
506: $result.=&Apache::edit::tag_start($target,$token);
507: $result.=&Apache::edit::text_arg('String to display for answer:',
508: 'answerdisplay',$token);
509: $result.=&Apache::edit::select_arg('Algebra System:',
510: 'cas',
511: ['maxima'],
512: $token);
513: $result.=&Apache::edit::text_arg('Argument Array:',
514: 'args',$token).
515: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
516: $result.=&Apache::edit::text_arg('Libraries:',
517: 'libraries',$token).
518: &Apache::loncommon::help_open_topic('Maxima_Libraries');
519: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
520: } elsif ($target eq 'modified') {
521: my $constructtag;
522: $constructtag=&Apache::edit::get_new_args($token,$parstack,
523: $safeeval,'answerdisplay','cas','args','libraries');
524: if ($constructtag) {
525: $result = &Apache::edit::rebuild_tag($token);
526: }
527: } elsif ($target eq 'answer' || $target eq 'grade') {
528: &Apache::response::reset_params();
529: } elsif ($target eq 'meta') {
530: $result .= &Apache::response::meta_package_write('mathresponse');
531: }
532: return $result;
533: }
534:
535: sub edit_mathresponse_button {
536: my ($id,$field)=@_;
537: my $button=&mt('Edit Answer');
538: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
539: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
540: return(<<ENDFORMULABUTTON);
541: <script language="JavaScript">
542: function edit_${id}_${field} (textarea) {
543: thenumber = textarea;
544: thedata = document.forms['lonhomework'].elements[textarea].value;
545: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
546: }
547: </script>
548: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$button' title='$button'/></a>
549: ENDFORMULABUTTON
550: }
551:
552: sub end_mathresponse {
553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
554: my $result;
555: my $part=$Apache::inputtags::part;
556: my $id=$Apache::inputtags::response[-1];
557: if ( $target eq 'grade' && &Apache::response::submitted() ) {
558: my $response = &Apache::response::getresponse();
559: if ( $response =~ /[^\s]/ ) {
560: if (!$Apache::lonxml::default_homework_loaded) {
561: &Apache::lonxml::default_homework_load($safeeval);
562: }
563: my %previous = &Apache::response::check_for_previous($response,
564: $part,$id);
565: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
566: $response;
567: my $error;
568: my $award;
569: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
570: if ($cas eq 'maxima') {
571: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
572: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
573: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
574: }
575: if (!&Apache::inputtags::valid_award($award)) {
576: $error = $award;
577: $award = 'ERROR';
578: }
579: &Apache::response::handle_previous(\%previous,$award);
580: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
581: $award;
582: if ($error) {
583: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
584: $error;
585: }
586: }
587: }
588: if ($target eq 'web') {
589: &setup_prior_tries_hash(\&format_prior_response_math);
590: my $partid = $Apache::inputtags::part;
591: my $id = $Apache::inputtags::response[-1];
592: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
593: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
594: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
595: }
596: }
597:
598: pop(@Apache::lonxml::namespace);
599: pop(@Apache::response::custom_answer);
600: pop(@Apache::response::custom_answer_type);
601: &Apache::lonxml::deregister('Apache::response',('answer'));
602: &Apache::response::end_response();
603: return $result;
604: }
605:
606: sub format_prior_response_math {
607: my ($mode,$answer) =@_;
608: return '<span class="LC_prior_math">'.
609: &HTML::Entities::encode($answer,'"<>&').'</span>';
610: }
611:
612: sub implicit_multiplication {
613: my ($expression)=@_;
614: # Escape scientific notation, so 3e8 does not become 3*e*8
615: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
616: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
617: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
618: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
619: # Fill in multiplication signs
620: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
621: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
622: # )( -> )*(; ) ( -> )*(
623: $expression=~s/\)\s*\(/\)\*\(/gs;
624: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
625: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
626: # a ( -> a*(
627: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
628: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
629: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
630: # 3&8 -> 3e8; 3&-4 -> 3e-4
631: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
632: return $expression;
633: }
634:
635: sub start_answer {
636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
637: my $result;
638: push(@Apache::response::custom_answer,
639: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
640: push(@Apache::response::custom_answer_type,
641: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
642: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
643: if ($target eq "edit" ) {
644: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
645: $result.=&Apache::edit::editfield($token->[1],
646: $Apache::response::custom_answer[-1],
647: '',80,4);
648: } elsif ( $target eq "modified" ) {
649: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
650: }
651: return $result;
652: }
653:
654: sub end_answer {
655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
656: if ($target eq 'edit' ) {
657: return &Apache::edit::end_table();
658: }
659: }
660:
661: sub decide_package {
662: my ($tagstack)=@_;
663: my $package;
664: if ($$tagstack[-1] eq 'parameter') {
665: $package='part';
666: } else {
667: my $i=-1;
668: while (defined($$tagstack[$i])) {
669: if ($$tagstack[$i] =~ /(response|hint)$/) {
670: $package=$$tagstack[$i];
671: last;
672: }
673: $i--;
674: }
675: }
676: return $package;
677: }
678:
679: sub start_responseparam {
680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
681: my $result='';
682: if ($target eq 'meta') {
683: $result = &meta_parameter_write($token->[2]->{'name'},
684: $token->[2]->{'type'},
685: $token->[2]->{'default'},
686: $token->[2]->{'description'});
687: } elsif ($target eq 'edit') {
688: $result.=&Apache::edit::tag_start($target,$token);
689: my $optionlist;
690: my $package=&decide_package($tagstack);
691: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
692: if ($key =~ /^\Q$package\E&(.*)&display$/) {
693: $optionlist.='<option value="'.$1.'">'.
694: $Apache::lonnet::packagetab{$key}.'</option>';
695: }
696: }
697: if (defined($optionlist)) {
698: $result.=&mt('Use template:').' <select name="'.
699: &Apache::edit::html_element_name('parameter_package').'">'.
700: '<option value=""></option>'.$optionlist.'</select><br />';
701: }
702: $result.=&Apache::edit::text_arg('Name:','name',$token).
703: &Apache::edit::text_arg('Type:','type',$token).
704: &Apache::edit::text_arg('Description:','description',$token).
705: &Apache::edit::text_arg('Default:','default',$token).
706: "</td></tr>";
707: $result.=&Apache::edit::end_table;
708: } elsif ($target eq 'modified') {
709: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
710: $safeeval,'name','type',
711: 'description','default');
712: my $element=&Apache::edit::html_element_name('parameter_package');
713: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
714: my $name=$env{"form.$element"};
715: my $tag=&decide_package($tagstack);
716: $token->[2]->{'name'}=$name;
717: $token->[2]->{'type'}=
718: $Apache::lonnet::packagetab{"$tag&$name&type"};
719: $token->[2]->{'description'}=
720: $Apache::lonnet::packagetab{"$tag&$name&display"};
721: $token->[2]->{'default'}=
722: $Apache::lonnet::packagetab{"$tag&$name&default"};
723: $token->[3] = ['name','type','description','default'];
724: $constructtag=1;
725: }
726: if ($constructtag) {
727: $result = &Apache::edit::rebuild_tag($token);
728: }
729: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
730: $target eq 'tex' || $target eq 'analyze' ) {
731: if ($env{'request.state'} eq 'construct') {
732: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
733: my $default=&Apache::lonxml::get_param('default',$parstack,
734: $safeeval);
735: if ($name) {$Apache::inputtags::params{$name}=$default;}
736: }
737: }
738: return $result;
739: }
740:
741: sub end_responseparam {
742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
743: if ($target eq 'edit') { return ('','no'); }
744: return '';
745: }
746:
747: sub start_parameter {
748: return &start_responseparam(@_);
749: }
750:
751: sub end_parameter {
752: return &end_responseparam(@_);
753: }
754:
755: sub reset_params {
756: %Apache::inputtags::params=();
757: }
758:
759: sub setup_params {
760: my ($tag,$safeeval) = @_;
761:
762: if ($env{'request.state'} eq 'construct') { return; }
763: my %paramlist=();
764: foreach my $key (keys(%Apache::lonnet::packagetab)) {
765: if ($key =~ /^\Q$tag\E/) {
766: my ($package,$name) = split(/&/,$key);
767: $paramlist{$name}=1;
768: }
769: }
770: foreach my $key (keys(%paramlist)) {
771: my $entry= 'resource.'.$Apache::inputtags::part;
772: if (defined($Apache::inputtags::response[-1])) {
773: $entry.='_'.$Apache::inputtags::response[-1];
774: }
775: $entry.='.'.$key;
776: &Apache::lonxml::debug("looking for $entry");
777: my $value = &Apache::lonnet::EXT("$entry");
778: &Apache::lonxml::debug("$key has value :$value:");
779: if ($value eq 'con_lost' || $value =~ /^error:/) {
780: &Apache::lonxml::debug("using nothing");
781: $Apache::inputtags::params{$key}='';
782: } else {
783: my $string="{return qq\0".$value."\0}";
784: my $newvalue=&Apache::run::run($string,$safeeval,1);
785: if (defined($newvalue)) { $value=$newvalue; }
786: $Apache::inputtags::params{$key}=$value;
787: }
788: }
789: }
790:
791: {
792: my @answer_bits;
793: my $need_row_start;
794:
795: sub answer_header {
796: my ($type,$increment,$rows) = @_;
797: my $result;
798: if ($env{'form.answer_output_mode'} eq 'tex') {
799: undef(@answer_bits);
800: my $bit;
801: if ($Apache::lonhomework::type eq 'exam') {
802: $bit = ($Apache::lonxml::counter+$increment).') ';
803: } else {
804: $bit .= ' Answer for Part: \verb|'.
805: $Apache::inputtags::part.'| ';
806: }
807: push(@answer_bits,$bit);
808: } else {
809: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
810: $result = '<table border="1"><tr>';
811: if ($Apache::lonhomework::type eq 'exam') {
812: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
813: } else {
814: $result .= $td.&mt('Answer for Part: [_1]',
815: $Apache::inputtags::part).'</td>';
816: }
817: $result .= "\n";
818: $need_row_start = 0;
819: }
820: return $result;
821: }
822:
823: sub next_answer {
824: my ($type) = @_;
825: my $result;
826: if ($env{'form.answer_output_mode'} eq 'tex') {
827: # FIXME ... need to do something with tex mode
828: } else {
829: $result .= "</tr>";
830: $need_row_start = 1;
831: }
832: return $result;
833: }
834:
835: sub answer_part {
836: my ($type,$answer,$args) = @_;
837: my $result;
838: if ($env{'form.answer_output_mode'} eq 'tex') {
839: if (!$args->{'no_verbatim'}) {
840: my $to_use='|';
841: foreach my $value (32..126) {
842: my $char=pack('c',$value);
843: if ($answer !~ /\Q$char\E/) {
844: $to_use=$char;
845: last;
846: }
847: }
848: my $fullanswer=$answer;
849: $answer='';
850: foreach my $element (split(/[\;]/,$fullanswer)) {
851: if ($element ne '') {
852: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
853: }
854: }
855: }
856: if ($answer ne '') {
857: push(@answer_bits,$answer);
858: }
859: } else {
860: if ($need_row_start) {
861: $result .= '<tr>';
862: $need_row_start = 0;
863: }
864: $result .= '<td>'.$answer.'</td>';
865: }
866: return $result;
867: }
868:
869: sub answer_footer {
870: my ($type) = @_;
871: my $result;
872: if ($env{'form.answer_output_mode'} eq 'tex') {
873: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
874: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
875: for (my $i=1;$i<=$#answer_bits;$i++) {
876: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
877: }
878: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
879: } else {
880: if (!$need_row_start) {
881: $result .= '</tr>';
882: }
883: $result .= '</table>';
884: }
885: return $result;
886: }
887:
888: }
889:
890: sub showallfoils {
891: if (defined($env{'form.showallfoils'})) {
892: my ($symb)=&Apache::lonnet::whichuser();
893: if (($env{'request.state'} eq 'construct') ||
894: ($env{'user.adv'} && $symb eq '') ||
895: ($Apache::lonhomework::viewgrades) ) {
896: return 1;
897: }
898: }
899: if ($Apache::lonhomework::type eq 'survey') { return 1; }
900: return 0;
901: }
902:
903: =pod
904:
905: =item &getresponse();
906:
907: Retreives the current submitted response, helps out in the case of
908: scantron mode.
909:
910: Returns either the exact text of the submission, or a bubbled response
911: converted to something usable.
912:
913: Optional Arguments:
914: $offset - (defaults to 1) if a problem has more than one bubble
915: response, pass in the number of the bubble wanted, (the
916: first bubble associated with a problem has an offset of 1,
917: the second bubble is 2
918:
919: $resulttype - undef -> a number between 0 and 25
920: 'A is 1' -> a number between 1 and 26
921: 'letter' -> a letter between 'A' and 'Z'
922: $lines - undef problem only needs a single line of bubbles.
923: nonzero Problem wants the first nonempty response in
924: $lines lines of bubbles.
925: $bubbles_per_line - Must be provided if lines is defined.. number of
926: bubbles on a line.
927:
928: =cut
929:
930: sub getresponse {
931: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
932: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
933: my $response;
934: if (!defined($offset)) {
935: $offset=1;
936: } else {
937: $formparm.=":$offset";
938: }
939: if (!defined($lines)) {
940: $lines = 1;
941: }
942: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
943: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
944: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
945: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
946: if ($env{'form.submitted'} eq 'scantron') {
947: my $part = $Apache::inputtags::part;
948: my $id = $Apache::inputtags::response[-1];
949:
950: my $line;
951: for ($line = 0; $line < $lines; $line++) {
952: my $theline = $Apache::lonxml::counter+$offset-1+$line;
953: $response = $env{"scantron.$theline.answer"};
954: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
955: last;
956: }
957:
958: }
959:
960: # save bubbled letter for later
961: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
962: $response;
963: if ($resulttype ne 'letter') {
964: if ($resulttype eq 'A is 1') {
965: $response = $let_to_num{$response}+1;
966: } else {
967: $response = $let_to_num{$response};
968: }
969: if ($response ne "") {
970: $response += $line * $bubbles_per_line;
971: }
972: } else {
973: if ($response ne "") {
974: $response = chr(ord($response) + $line * $bubbles_per_line);
975: }
976: }
977:
978: } else {
979: $response = $env{$formparm};
980: }
981: #
982: # If we have a nonempty answer, correct the numeric value
983: # of the answer for the line on which it was found.
984: #
985:
986: return $response;
987: }
988:
989: =pod
990:
991: =item &repetition();
992:
993: Returns the number of lines that are required to encode the weight.
994: (Currently expects that there are 10 bubbles per line)
995:
996: =cut
997:
998: sub repetition {
999: my $id = $Apache::inputtags::part;
1000: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1001: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1002: my $repetition = int($weight/10);
1003: if ($weight % 10 != 0) { $repetition++; }
1004: return $repetition;
1005: }
1006:
1007: =pod
1008:
1009: =item &scored_response();
1010:
1011: Sets the results hash elements
1012:
1013: resource.$part_id.$response_id.awarded - to the floating point
1014: number between 0 and 1 that was awarded on the bubbled input
1015:
1016: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1017:
1018: Returns
1019:
1020: the number of bubble sheet lines that were used (and likely need to
1021: be passed to &Apache::lonxml::increment_counter()
1022:
1023: Arguments
1024:
1025: $part_id - id of the part to grade
1026: $response_id - id of the response to grade
1027:
1028:
1029: =cut
1030:
1031: sub scored_response {
1032: my ($part,$id)=@_;
1033: my $repetition=&repetition();
1034: my $score=0;
1035: for (my $i=0;$i<$repetition;$i++) {
1036: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1037: my $increase=&Apache::response::getresponse($i+1);
1038: if ($increase ne '') { $score+=$increase+1; }
1039: }
1040: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1041: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1042: my $pcr=$score/$weight;
1043: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1044: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1045: 'ASSIGNED_SCORE';
1046: return $repetition;
1047: }
1048:
1049: sub whichorder {
1050: my ($max,$randomize,$showall,$hash)=@_;
1051: #&Apache::lonxml::debug("man $max randomize $randomize");
1052: if (!defined(@{ $$hash{'names'} })) { return; }
1053: my @names = @{ $$hash{'names'} };
1054: my @whichopt =();
1055: my (%top,@toplist,%bottom,@bottomlist);
1056: if (!($showall || ($randomize eq 'no'))) {
1057: my $current=0;
1058: foreach my $name (@names) {
1059: $current++;
1060: if ($$hash{"$name.location"} eq 'top') {
1061: $top{$name}=$current;
1062: } elsif ($$hash{"$name.location"} eq 'bottom') {
1063: $bottom{$name}=$current;
1064: }
1065: }
1066: }
1067: my $topcount=0;
1068: my $bottomcount=0;
1069: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1070: && ($#names > -1)) {
1071: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1072: my $aopt;
1073: if ($showall || ($randomize eq 'no')) {
1074: $aopt=0;
1075: } else {
1076: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1077: }
1078: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1079: $aopt=splice(@names,$aopt,1);
1080: #&Apache::lonxml::debug("Picked $aopt");
1081: if ($top{$aopt}) {
1082: $toplist[$top{$aopt}]=$aopt;
1083: $topcount++;
1084: } elsif ($bottom{$aopt}) {
1085: $bottomlist[$bottom{$aopt}]=$aopt;
1086: $bottomcount++;
1087: } else {
1088: push (@whichopt,$aopt);
1089: }
1090: }
1091: for (my $i=0;$i<=$#toplist;$i++) {
1092: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1093: }
1094: for (my $i=0;$i<=$#bottomlist;$i++) {
1095: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1096: }
1097: return @whichopt;
1098: }
1099:
1100: sub show_answer {
1101: my $part = $Apache::inputtags::part;
1102: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1103: my $status = $Apache::inputtags::status[-1];
1104: return ( ($award =~ /^correct/
1105: && &Apache::lonhomework::show_problem_status())
1106: || $status eq "SHOW_ANSWER");
1107: }
1108:
1109: sub analyze_store_foilgroup {
1110: my ($shown,$attrs)=@_;
1111: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1112: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1113: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1114: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1115: foreach my $attr (@$attrs) {
1116: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1117: $Apache::response::foilgroup{"$name.".$attr};
1118: }
1119: }
1120: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1121: }
1122:
1123: sub check_if_computed {
1124: my ($token,$parstack,$safeeval,$name)=@_;
1125: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1126: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1127: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1128: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1129: }
1130: }
1131:
1132: sub pick_foil_for_concept {
1133: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1134: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1135: my @names = @{ $Apache::response::conceptgroup{'names'} };
1136: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1137: my $name=$names[$pick];
1138: push @{ $Apache::response::foilgroup{'names'} }, $name;
1139: foreach my $attr (@$attrs) {
1140: $Apache::response::foilgroup{"$name.".$attr} =
1141: $Apache::response::conceptgroup{"$name.".$attr};
1142: }
1143: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1144: $Apache::response::foilgroup{"$name.concept"} = $concept;
1145: &Apache::lonxml::debug("Selecting $name in $concept");
1146: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1147: if ($target eq 'analyze') {
1148: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1149: $concept);
1150: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1151: $Apache::response::conceptgroup{'names'};
1152: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1153: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1154: $name);
1155: foreach my $attr (@$attrs) {
1156: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1157: $Apache::response::conceptgroup{"$name.$attr"};
1158: }
1159: }
1160: }
1161: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1162: $hinthash->{"$part_id.concept.$concept"}=
1163: $Apache::response::conceptgroup{'names'};
1164:
1165: }
1166:
1167: =pod
1168:
1169: =item get_response_param()
1170:
1171: Get a parameter associated with a problem.
1172: Parameters:
1173: $id - the id of the paramater, either a part id,
1174: or a partid and responspe id joined by _
1175: $name - Name of the parameter to fetch
1176: $default - Default value for the paramter.
1177:
1178: =cut
1179:
1180: sub get_response_param {
1181: my ($id,$name,$default)=@_;
1182: my $parameter;
1183: if ($env{'request.state'} eq 'construct' &&
1184: defined($Apache::inputtags::params{$name})) {
1185: $parameter=$Apache::inputtags::params{$name};
1186: } else {
1187: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1188: }
1189: if (!defined($parameter) || $parameter eq '') {
1190: $parameter = $default;
1191: }
1192: return $parameter;
1193: }
1194:
1195: sub submitted {
1196: my ($who)=@_;
1197:
1198: # when scatron grading any submission is a submission
1199: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1200: # if the caller only cared if this was a scantron submission
1201: if ($who eq 'scantron') { return 0; }
1202: # if the Submit Answer button for this particular part was pressed
1203: my $partid=$Apache::inputtags::part;
1204: if ($env{'form.submitted'} eq "part_$partid") {
1205: return 1;
1206: }
1207: if ($env{'form.submitted'} eq "yes"
1208: && defined($env{'form.submit_'.$partid})) {
1209: return 1;
1210: }
1211: # Submit All button on a .page was pressed
1212: if (defined($env{'form.all_submit'})) { return 1; }
1213: # otherwise no submission occurred
1214: return 0;
1215: }
1216:
1217: sub add_to_gradingqueue {
1218: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1219: if ( $courseid eq ''
1220: || $symb eq ''
1221: || $env{'request.state'} eq 'construct'
1222: || $Apache::lonhomework::type ne 'problem') {
1223: return;
1224: }
1225:
1226: my %queue_info = ( 'type' => 'problem',
1227: 'time' => time);
1228:
1229: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1230: $queue_info{'slot'}=
1231: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1232: }
1233:
1234: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1235: if ($result ne 'ok') {
1236: &Apache::lonxml::error("add_to_queue said $result");
1237: }
1238: }
1239:
1240: =pod
1241:
1242: =item check_status()
1243:
1244: basically undef and 0 (both false) mean that they still have work to do
1245: and all true values mean that they can't do any more work
1246:
1247: a return of undef means it is unattempted
1248: a return of 0 means it is attmpted and wrong but still has tries
1249: a return of 1 means it is marked correct
1250: a return of 2 means they have exceed maximum number of tries
1251: a return of 3 means it after the answer date
1252:
1253: =cut
1254:
1255: sub check_status {
1256: my ($id)=@_;
1257: if (!defined($id)) { $id=$Apache::inputtags::part; }
1258: my $curtime=&Apache::lonnet::EXT('system.time');
1259: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1260: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1261: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1262: if ( $opendate && $curtime > $opendate &&
1263: $duedate && $curtime > $duedate &&
1264: $answerdate && $curtime > $answerdate) {
1265: return 3;
1266: }
1267: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1268: if ($status =~ /^correct/) { return 1; }
1269: if (!$status) { return undef; }
1270: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1271: if ($maxtries eq '') { $maxtries=2; }
1272: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1273: if ($curtries < $maxtries) { return 0; }
1274: return 2;
1275: }
1276:
1277: =pod
1278:
1279: =item setup_prior_tries_hash()
1280:
1281: Foreach each past .submission $func is called with 3 arguments
1282: - the mode to set things up for (currently always 'grade')
1283: - the stored .submission string
1284: - The expansion of $data
1285:
1286: $data is an array ref containing elements that are either
1287: - scalars that are other elements of the history hash to pass to $func
1288: - ref to data to be passed untouched to $func
1289:
1290: =cut
1291:
1292: sub setup_prior_tries_hash {
1293: my ($func,$data) = @_;
1294: my $part = $Apache::inputtags::part;
1295: my $id = $Apache::inputtags::response[-1];
1296: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1297: my $sub_key = "$i:resource.$part.$id.submission";
1298: next if (!exists($Apache::lonhomework::history{$sub_key}));
1299: my @other_data;
1300: foreach my $datum (@{ $data }) {
1301: if (ref($datum)) {
1302: push(@other_data,$datum);
1303: } else {
1304: my $info_key = "$i:resource.$part.$id.$datum";
1305: push(@other_data,$Apache::lonhomework::history{$info_key});
1306: }
1307: }
1308:
1309: my $output =
1310: &$func('grade',
1311: $Apache::lonhomework::history{$sub_key},
1312: \@other_data);
1313: if (defined($output)) {
1314: $Apache::inputtags::submission_display{$sub_key} = $output;
1315: }
1316: }
1317: }
1318:
1319: 1;
1320: __END__
1321:
1322: =pod
1323:
1324: =cut
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