1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.221.2.1 2011/10/08 20:51:30 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::response.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: use Apache::lonr();
58:
59: BEGIN {
60: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
61: }
62:
63: sub start_response {
64: my ($parstack,$safeeval)=@_;
65: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
66: if ($#Apache::inputtags::import > -1) {
67: &Apache::lonxml::debug("Turning :$id: into");
68: $id = join('_',@Apache::inputtags::import).'_'.$id;
69: &Apache::lonxml::debug("New :$id:");
70: }
71: push (@Apache::inputtags::response,$id);
72: push (@Apache::inputtags::responselist,$id);
73: @Apache::inputtags::inputlist=();
74: if ($Apache::inputtags::part eq '' &&
75: !$Apache::lonhomework::ignore_response_errors) {
76: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
77: }
78: if ($Apache::inputtags::response_with_no_part &&
79: $Apache::inputtags::part ne '0') {
80: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
81: }
82: if ($Apache::inputtags::part eq '0') {
83: $Apache::inputtags::response_with_no_part=1;
84: }
85: return $id;
86: }
87:
88: sub end_response {
89: #pop @Apache::inputtags::response;
90: @Apache::inputtags::inputlist=();
91: return '';
92: }
93:
94: sub start_hintresponse {
95: my ($parstack,$safeeval)=@_;
96: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
97: push (@Apache::inputtags::hint,$id);
98: push (@Apache::inputtags::hintlist,$id);
99: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
100: return $id;
101: }
102:
103: sub end_hintresponse {
104: pop @Apache::inputtags::hint;
105: if (defined($Apache::inputtags::paramstack[-1])) {
106: %Apache::inputtags::params=
107: @{ pop(@Apache::inputtags::paramstack) };
108: }
109: return '';
110: }
111:
112: my @randomseeds;
113: sub pushrandomnumber {
114: my $rand_alg=&Apache::lonnet::get_rand_alg();
115: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
116: $rand_alg eq '64bit2') {
117: # do nothing
118: } else {
119: my @seed=&Math::Random::random_get_seed();
120: push(@randomseeds,\@seed);
121: }
122: &Apache::response::setrandomnumber(@_);
123: }
124: sub poprandomnumber {
125: my $rand_alg=&Apache::lonnet::get_rand_alg();
126: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
127: $rand_alg eq '64bit2') {
128: return;
129: }
130: my $seed=pop(@randomseeds);
131: if ($seed) {
132: &Math::Random::random_set_seed(@$seed);
133: } else {
134: &Apache::lonxml::error("Unable to restore random algorithm.");
135: }
136: }
137:
138: sub setrandomnumber {
139: my ($ignore_id2,$target,$rndseed) = @_;
140: if (!defined($rndseed)) {
141: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target);
142: }
143: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
144: &Apache::lonxml::debug("randseed $rndseed");
145: # $rndseed=unpack("%32i",$rndseed);
146: my $rand_alg=&Apache::lonnet::get_rand_alg();
147: my ($rndmod,$rndmod2);
148:
149: my ($id1,$id2,$shift_amt);
150: if ($Apache::lonhomework::parsing_a_problem) {
151: $id1=$Apache::inputtags::part;
152: if (defined($Apache::inputtags::response[-1])) {
153: $id2=$Apache::inputtags::response[-1];
154: }
155: $shift_amt=scalar(@Apache::inputtags::responselist);
156: } elsif ($Apache::lonhomework::parsing_a_task) {
157: $id1=&Apache::bridgetask::get_dim_id();
158: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
159: $id2=$Apache::bridgetask::instance{$id1}[-1];
160: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
161: } else {
162: $shift_amt=0;
163: }
164: }
165: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
166: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
167: $rand_alg eq '64bit2') {
168: $rndmod=(&Apache::lonnet::numval($id1) << 10);
169: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
170: } elsif ($rand_alg eq '64bit3') {
171: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
172: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
173: } elsif ($rand_alg eq '64bit4') {
174: my $shift=(4*$shift_amt)%30;
175: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
176: if (defined($id2)) {
177: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
178: }
179: } else {
180: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
181: }
182:
183: if ($rndseed =~/([,:])/) {
184: my $char=$1;
185: use integer;
186: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
187: $num1+=$rndmod;
188: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
189: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
190: $rndseed=$num1.$char.$num2;
191: } else {
192: $rndseed+=$rndmod;
193: if($Apache::lonnet::_64bit) {
194: use integer;
195: $rndseed=(($rndseed<<32)>>32);
196: }
197: }
198: &Apache::lonxml::debug("randseed $rndmod $rndseed");
199: &Apache::lonnet::setup_random_from_rndseed($rndseed);
200: return '';
201: }
202:
203: sub meta_parameter_write {
204: my ($name,$type,$default,$display)=@_;
205: my $partref=$Apache::inputtags::part;
206: my $result='<parameter part="'.$Apache::inputtags::part.'"';
207: if (defined($Apache::inputtags::response[-1])) {
208: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
209: $partref.='_'.$Apache::inputtags::response[-1];
210: }
211: $result.= ' name="'.$name.'"'.
212: ' type="'.$type.'"'.
213: (defined($default)?' default="'.$default.'"':'').
214: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
215: .'></parameter>'
216: ."\n";
217: return $result;
218: }
219:
220: sub meta_package_write {
221: my $name=shift;
222: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
223: if(defined($Apache::inputtags::response[-1])) {
224: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
225: }
226: $result.=' package="'.$name.'"></parameter>'."\n";
227: return $result;
228: }
229:
230: sub meta_stores_write {
231: my ($name,$type,$display)=@_;
232: my $partref=$Apache::inputtags::part;
233: my $result = '<stores part="'.$Apache::inputtags::part.'"';
234: if (defined($Apache::inputtags::response[-1])) {
235: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
236: $partref.='_'.$Apache::inputtags::response[-1];
237: }
238: $result.= ' name="'.$name.'"'.
239: ' type="'.$type.'"'.
240: ' display="'.$display.' [Part: '.$partref.']"'.
241: "></stores>\n";
242: }
243:
244: =pod
245:
246: =item mandatory_part_meta()
247:
248: Autogenerate metadata for mandatory
249: input (from RAT or lonparmset) and
250: output (to lonspreadsheet)
251: of each part
252:
253: Note: responseid-specific data 'submission' and 'awarddetail'
254: not available to spreadsheet -> skip here
255:
256: =cut
257:
258:
259: sub mandatory_part_meta {
260: return &meta_package_write('part').
261: &meta_stores_write('solved','string','Problem Status').
262: &meta_stores_write('tries','int_zeropos','Number of Attempts').
263: &meta_stores_write('awarded','float','Partial Credit Factor');
264: }
265:
266: sub meta_part_order {
267: if (@Apache::inputtags::partlist) {
268: my @parts=@Apache::inputtags::partlist;
269: shift(@parts);
270: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
271: } else {
272: return '<partorder>0</partorder>'."\n";
273: }
274: }
275:
276: sub meta_response_order {
277: if (@Apache::inputtags::responselist) {
278: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
279: '</responseorder>'."\n";
280: }
281: }
282:
283: sub check_for_previous {
284: my ($curresponse,$partid,$id,$last,$type) = @_;
285: my %previous;
286: $previous{'used'} = 0;
287: my $questiontype = $Apache::lonhomework::type;
288: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
289: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
290: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
291: if ( $last && $key =~ /^(\d+):/ ) {
292: next if ($1 >= $last);
293: }
294: &Apache::lonxml::debug("Trying $key");
295: my $pastresponse=$Apache::lonhomework::history{$key};
296: if ($pastresponse eq $curresponse) {
297: my $history;
298: if ( $key =~ /^(\d+):/ ) {
299: $history=$1;
300: next if ((($questiontype eq 'randomizetry') ||
301: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
302: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
303: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
304: $previous{'last'}='0';
305: push(@{ $previous{'version'} },$history);
306: } else {
307: next if ((($questiontype eq 'randomizetry') ||
308: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
309: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
310: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
311: $previous{'last'}='1';
312: }
313: $previous{'used'} = 1;
314: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
315: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
316: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
317: } elsif ($type eq 'ci') {
318: if (lc($pastresponse) eq lc($curresponse)) {
319: if ($key =~ /^(\d+):/) {
320: my $history = $1;
321: next if (($questiontype eq 'randomizetry') &&
322: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
323: push (@{$previous{'versionci'}},$history);
324: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
325: $previous{'usedci'} = 1;
326: }
327: }
328: }
329: }
330: }
331: &Apache::lonhomework::showhash(%previous);
332: return %previous;
333: }
334:
335: sub handle_previous {
336: my ($previous,$ad)=@_;
337: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
338: if ($$previous{'last'}) {
339: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
340: push(@Apache::inputtags::previous_version,$$previous{'version'});
341: } elsif (($Apache::lonhomework::type ne 'survey') &&
342: ($Apache::lonhomework::type ne 'surveycred') &&
343: ($Apache::lonhomework::type ne 'anonsurvey') &&
344: ($Apache::lonhomework::type ne 'anonsurveycred')) {
345: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
346: push(@Apache::inputtags::previous_version,$$previous{'version'});
347: }
348: }
349: }
350:
351: sub view_or_modify {
352: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
353: my $myself=0;
354: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
355: $myself=1;
356: }
357: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
358: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
359: if ($mgr) { return "M"; }
360: if ($vgr) { return "V"; }
361: if ($myself) { return "V"; }
362: return '';
363: }
364:
365: sub start_dataresponse {
366: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
367: my $id = &Apache::response::start_response($parstack,$safeeval);
368: my $result;
369: if ($target eq 'web') {
370: $result = $token->[2]->{'display'}.':';
371: } elsif ($target eq 'meta') {
372: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
373: $token->[2]->{'type'},
374: $token->[2]->{'display'});
375: $result .= &Apache::response::meta_package_write('dataresponse');
376: }
377: return $result;
378: }
379:
380: sub end_dataresponse {
381: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
382: my $result;
383: if ( $target eq 'web' ) {
384: } elsif ($target eq 'grade' ) {
385: if ( defined $env{'form.submitted'}) {
386: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
387: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
388: if ($allowed) {
389: &Apache::response::setup_params('dataresponse',$safeeval);
390: my $partid = $Apache::inputtags::part;
391: my $id = $Apache::inputtags::response['-1'];
392: my $response = $env{'form.HWVAL_'.$id};
393: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
394: if ( $response =~ /[^\s]/) {
395: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
396: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
397: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
398: }
399: } else {
400: $result='Not Permitted to change values.'
401: }
402: }
403: }
404: &Apache::response::end_response;
405: return $result;
406: }
407:
408: sub start_customresponse {
409: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
410: my $id = &Apache::response::start_response($parstack,$safeeval);
411: push(@Apache::lonxml::namespace,'customresponse');
412: my $result;
413: @Apache::response::custom_answer=();
414: @Apache::response::custom_answer_type=();
415: &Apache::lonxml::register('Apache::response',('answer'));
416: if ($target eq 'web') {
417: if ( &Apache::response::show_answer() ) {
418: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
419: $safeeval);
420: $Apache::inputtags::answertxt{$id}=[$answer];
421: }
422: } elsif ($target eq 'edit') {
423: $result.=&Apache::edit::tag_start($target,$token);
424: $result.=&Apache::edit::text_arg('String to display for answer:',
425: 'answerdisplay',$token,'50');
426: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
427: } elsif ($target eq 'modified') {
428: my $constructtag;
429: $constructtag=&Apache::edit::get_new_args($token,$parstack,
430: $safeeval,'answerdisplay');
431: if ($constructtag) {
432: $result = &Apache::edit::rebuild_tag($token);
433: }
434: } elsif ($target eq 'answer' || $target eq 'grade') {
435: &Apache::response::reset_params();
436: } elsif ($target eq 'meta') {
437: $result .= &Apache::response::meta_package_write('customresponse');
438: }
439: return $result;
440: }
441:
442: sub end_customresponse {
443: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
444: my $result;
445: my $part=$Apache::inputtags::part;
446: my $id=$Apache::inputtags::response[-1];
447: if ( $target eq 'grade' && &Apache::response::submitted() ) {
448: my $response = &Apache::response::getresponse();
449: if ($Apache::lonhomework::type eq 'exam' ||
450: &Apache::response::submitted('scantron')) {
451: &Apache::response::scored_response($part,$id);
452: } elsif ( $response =~ /[^\s]/ &&
453: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
454: if (!$Apache::lonxml::default_homework_loaded) {
455: &Apache::lonxml::default_homework_load($safeeval);
456: }
457: my %previous = &Apache::response::check_for_previous($response,
458: $part,$id);
459: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
460: $response;
461: my $error;
462: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
463: $response;
464:
465: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
466: if (!&Apache::inputtags::valid_award($award)) {
467: $error = $award;
468: $award = 'ERROR';
469: }
470: &Apache::response::handle_previous(\%previous,$award);
471: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
472: $award;
473: if ($award eq 'ASSIGNED_SCORE') {
474: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
475: }
476: if ($error) {
477: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
478: $error;
479: }
480: }
481: } elsif ( $target eq 'answer') {
482: $result = &Apache::response::answer_header('customresponse');
483: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
484: $safeeval);
485: if ($env{'form.answer_output_mode'} ne 'tex') {
486: $answer = '<b>'.$answer.'</b>';
487: }
488: $result .= &Apache::response::answer_part('customresponse',$answer);
489: $result .= &Apache::response::answer_footer('customresponse');
490: }
491: if ($target eq 'web') {
492: &setup_prior_tries_hash(\&format_prior_response_math);
493: }
494: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
495: $target eq 'tex' || $target eq 'analyze') {
496: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
497: "$part.$id");
498: if ($target eq 'analyze') {
499: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
500: &Apache::lonhomework::set_bubble_lines();
501: }
502: }
503: pop(@Apache::lonxml::namespace);
504: pop(@Apache::response::custom_answer);
505: pop(@Apache::response::custom_answer_type);
506: &Apache::lonxml::deregister('Apache::response',('answer'));
507: &Apache::response::end_response();
508: return $result;
509: }
510:
511: sub format_prior_response_custom {
512: my ($mode,$answer) =@_;
513: return '<span class="LC_prior_custom">'.
514: &HTML::Entities::encode($answer,'"<>&').'</span>';
515: }
516:
517: sub start_mathresponse {
518: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
519: my $id = &Apache::response::start_response($parstack,$safeeval);
520: push(@Apache::lonxml::namespace,'mathresponse');
521: my $result;
522: @Apache::response::custom_answer=();
523: @Apache::response::custom_answer_type=();
524: &Apache::lonxml::register('Apache::response',('answer'));
525: if ($target eq 'web') {
526: if ( &Apache::response::show_answer() ) {
527: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
528: $safeeval);
529: $Apache::inputtags::answertxt{$id}=[$answer];
530: }
531:
532: } elsif ($target eq 'edit') {
533: $result.=&Apache::edit::tag_start($target,$token);
534: $result.=&Apache::edit::text_arg('String to display for answer:',
535: 'answerdisplay',$token,'50');
536: $result.=&Apache::edit::select_arg('Algebra System:',
537: 'cas',
538: ['maxima','R'],
539: $token);
540: $result.=&Apache::edit::text_arg('Argument Array:',
541: 'args',$token).
542: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
543: $result.=&Apache::edit::text_arg('Libraries:',
544: 'libraries',$token).
545: &Apache::loncommon::help_open_topic('Maxima_Libraries');
546: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
547: } elsif ($target eq 'modified') {
548: my $constructtag;
549: $constructtag=&Apache::edit::get_new_args($token,$parstack,
550: $safeeval,'answerdisplay','cas','args','libraries');
551: if ($constructtag) {
552: $result = &Apache::edit::rebuild_tag($token);
553: }
554: } elsif ($target eq 'answer' || $target eq 'grade') {
555: &Apache::response::reset_params();
556: } elsif ($target eq 'meta') {
557: $result .= &Apache::response::meta_package_write('mathresponse');
558: }
559: return $result;
560: }
561:
562: sub edit_mathresponse_button {
563: my ($id,$field)=@_;
564: my $button=&mt('Edit Answer');
565: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
566: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
567: return(<<ENDFORMULABUTTON);
568: <script type="text/javascript" language="JavaScript">
569: function edit_${id}_${field} (textarea) {
570: thenumber = textarea;
571: thedata = document.forms['lonhomework'].elements[textarea].value;
572: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
573: }
574: </script>
575: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
576: ENDFORMULABUTTON
577: }
578:
579: sub end_mathresponse {
580: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
581: my $result;
582: my $part=$Apache::inputtags::part;
583: my $id=$Apache::inputtags::response[-1];
584: if ( $target eq 'grade' && &Apache::response::submitted() ) {
585: my $response = &Apache::response::getresponse();
586: if ( $response =~ /[^\s]/ ) {
587: if (!$Apache::lonxml::default_homework_loaded) {
588: &Apache::lonxml::default_homework_load($safeeval);
589: }
590: my %previous = &Apache::response::check_for_previous($response,
591: $part,$id);
592: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
593: $response;
594: my $error;
595: my $award;
596: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
597: if ($cas eq 'maxima') {
598: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
599: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
600: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
601: }
602: if ($cas eq 'R') {
603: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
604: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
605: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
606: }
607:
608: if (!&Apache::inputtags::valid_award($award)) {
609: $error = $award;
610: $award = 'ERROR';
611: }
612: &Apache::response::handle_previous(\%previous,$award);
613: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
614: $award;
615: if ($error) {
616: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
617: $error;
618: }
619: }
620: }
621: if ($target eq 'web') {
622: &setup_prior_tries_hash(\&format_prior_response_math);
623: my $partid = $Apache::inputtags::part;
624: my $id = $Apache::inputtags::response[-1];
625: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
626: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
627: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
628: }
629: }
630:
631: pop(@Apache::lonxml::namespace);
632: pop(@Apache::response::custom_answer);
633: pop(@Apache::response::custom_answer_type);
634: &Apache::lonxml::deregister('Apache::response',('answer'));
635: &Apache::response::end_response();
636: return $result;
637: }
638:
639: sub format_prior_response_math {
640: my ($mode,$answer) =@_;
641: return '<span class="LC_prior_math">'.
642: &HTML::Entities::encode($answer,'"<>&').'</span>';
643: }
644:
645: sub implicit_multiplication {
646: my ($expression)=@_;
647: # Escape scientific notation, so 3e8 does not become 3*e*8
648: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
649: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
650: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
651: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
652: # Fill in multiplication signs
653: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
654: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
655: # )( -> )*(; ) ( -> )*(
656: $expression=~s/\)\s*\(/\)\*\(/gs;
657: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
658: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
659: # a ( -> a*(
660: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
661: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
662: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
663: # 3&8 -> 3e8; 3&-4 -> 3e-4
664: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
665: return $expression;
666: }
667:
668: sub start_answer {
669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
670: my $result;
671: push(@Apache::response::custom_answer,
672: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
673: push(@Apache::response::custom_answer_type,
674: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
675: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
676: if ($target eq "edit" ) {
677: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
678: $result.=&Apache::edit::editfield($token->[1],
679: $Apache::response::custom_answer[-1],
680: '',80,4);
681: } elsif ( $target eq "modified" ) {
682: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
683: }
684: return $result;
685: }
686:
687: sub end_answer {
688: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
689: if ($target eq 'edit' ) {
690: return &Apache::edit::end_table();
691: }
692: }
693:
694: sub decide_package {
695: my ($tagstack)=@_;
696: my $package;
697: if ($$tagstack[-1] eq 'parameter') {
698: $package='part';
699: } else {
700: my $i=-1;
701: while (defined($$tagstack[$i])) {
702: if ($$tagstack[$i] =~ /(response|hint)$/) {
703: $package=$$tagstack[$i];
704: last;
705: }
706: $i--;
707: }
708: }
709: return $package;
710: }
711:
712: sub start_responseparam {
713: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
714: my $result='';
715: if ($target eq 'meta') {
716: $result = &meta_parameter_write($token->[2]->{'name'},
717: $token->[2]->{'type'},
718: $token->[2]->{'default'},
719: $token->[2]->{'description'});
720: } elsif ($target eq 'edit') {
721: $result.=&Apache::edit::tag_start($target,$token);
722: my $optionlist;
723: my $package=&decide_package($tagstack);
724: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
725: if ($key =~ /^\Q$package\E&(.*)&display$/) {
726: $optionlist.='<option value="'.$1.'">'.
727: $Apache::lonnet::packagetab{$key}.'</option>';
728: }
729: }
730: if (defined($optionlist)) {
731: $result.=&mt('Use template:').' <select name="'.
732: &Apache::edit::html_element_name('parameter_package').'">'.
733: '<option value=""></option>'.$optionlist.'</select><br />';
734: }
735: $result.=&Apache::edit::text_arg('Name:','name',$token).
736: &Apache::edit::text_arg('Type:','type',$token).
737: &Apache::edit::text_arg('Description:','description',$token).
738: &Apache::edit::text_arg('Default:','default',$token).
739: "</td></tr>";
740: $result.=&Apache::edit::end_table;
741: } elsif ($target eq 'modified') {
742: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
743: $safeeval,'name','type',
744: 'description','default');
745: my $element=&Apache::edit::html_element_name('parameter_package');
746: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
747: my $name=$env{"form.$element"};
748: my $tag=&decide_package($tagstack);
749: $token->[2]->{'name'}=$name;
750: $token->[2]->{'type'}=
751: $Apache::lonnet::packagetab{"$tag&$name&type"};
752: $token->[2]->{'description'}=
753: $Apache::lonnet::packagetab{"$tag&$name&display"};
754: $token->[2]->{'default'}=
755: $Apache::lonnet::packagetab{"$tag&$name&default"};
756: $token->[3] = ['name','type','description','default'];
757: $constructtag=1;
758: }
759: if ($constructtag) {
760: $result = &Apache::edit::rebuild_tag($token);
761: }
762: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
763: $target eq 'tex' || $target eq 'analyze' ) {
764: if ($env{'request.state'} eq 'construct') {
765: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
766: my $default=&Apache::lonxml::get_param('default',$parstack,
767: $safeeval);
768: if ($name) {$Apache::inputtags::params{$name}=$default;}
769: }
770: }
771: return $result;
772: }
773:
774: sub end_responseparam {
775: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
776: if ($target eq 'edit') { return ('','no'); }
777: return '';
778: }
779:
780: sub start_parameter {
781: return &start_responseparam(@_);
782: }
783:
784: sub end_parameter {
785: return &end_responseparam(@_);
786: }
787:
788: sub reset_params {
789: %Apache::inputtags::params=();
790: }
791:
792: sub setup_params {
793: my ($tag,$safeeval) = @_;
794:
795: if ($env{'request.state'} eq 'construct') { return; }
796: my %paramlist=();
797: foreach my $key (keys(%Apache::lonnet::packagetab)) {
798: if ($key =~ /^\Q$tag\E/) {
799: my ($package,$name) = split(/&/,$key);
800: $paramlist{$name}=1;
801: }
802: }
803: foreach my $key (keys(%paramlist)) {
804: my $entry= 'resource.'.$Apache::inputtags::part;
805: if (defined($Apache::inputtags::response[-1])) {
806: $entry.='_'.$Apache::inputtags::response[-1];
807: }
808: $entry.='.'.$key;
809: &Apache::lonxml::debug("looking for $entry");
810: my $value = &Apache::lonnet::EXT("$entry");
811: &Apache::lonxml::debug("$key has value :$value:");
812: if ($value eq 'con_lost' || $value =~ /^error:/) {
813: &Apache::lonxml::debug("using nothing");
814: $Apache::inputtags::params{$key}='';
815: } else {
816: my $string="{return qq\0".$value."\0}";
817: my $newvalue=&Apache::run::run($string,$safeeval,1);
818: if (defined($newvalue)) { $value=$newvalue; }
819: $Apache::inputtags::params{$key}=$value;
820: }
821: }
822: }
823:
824: {
825: my @answer_bits;
826: my $need_row_start;
827:
828: sub answer_header {
829: my ($type,$increment,$rows) = @_;
830: my $result;
831: if ($env{'form.answer_output_mode'} eq 'tex') {
832: undef(@answer_bits);
833: my $bit;
834: if ($Apache::lonhomework::type eq 'exam') {
835: $bit = ($Apache::lonxml::counter+$increment).') ';
836: } else {
837: $bit .= ' Answer for Part: \verb|'.
838: $Apache::inputtags::part.'| ';
839: }
840: push(@answer_bits,$bit);
841: } else {
842: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
843: $result = '<table border="1"><tr>';
844: if ($Apache::lonhomework::type eq 'exam') {
845: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
846: } else {
847: $result .= $td.&mt('Answer for Part: [_1]',
848: $Apache::inputtags::part).'</td>';
849: }
850: $result .= "\n";
851: $need_row_start = 0;
852: }
853: return $result;
854: }
855:
856: sub next_answer {
857: my ($type) = @_;
858: my $result;
859: if ($env{'form.answer_output_mode'} eq 'tex') {
860: # FIXME ... need to do something with tex mode
861: } else {
862: $result .= "</tr>";
863: $need_row_start = 1;
864: }
865: return $result;
866: }
867:
868: sub answer_part {
869: my ($type,$answer,$args) = @_;
870: my $result;
871: if ($env{'form.answer_output_mode'} eq 'tex') {
872: if (!$args->{'no_verbatim'}) {
873: my $to_use='|';
874: foreach my $value (32..126) {
875: my $char=pack('c',$value);
876: if ($answer !~ /\Q$char\E/) {
877: $to_use=$char;
878: last;
879: }
880: }
881: my $fullanswer=$answer;
882: $answer='';
883: foreach my $element (split(/[\;]/,$fullanswer)) {
884: if ($element ne '') {
885: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
886: }
887: }
888: }
889: if ($answer ne '') {
890: push(@answer_bits,$answer);
891: }
892: } else {
893: if ($need_row_start) {
894: $result .= '<tr>';
895: $need_row_start = 0;
896: }
897: $result .= '<td>'.$answer.'</td>';
898: }
899: return $result;
900: }
901:
902: sub answer_footer {
903: my ($type) = @_;
904: my $result;
905: if ($env{'form.answer_output_mode'} eq 'tex') {
906: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
907: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
908: for (my $i=1;$i<=$#answer_bits;$i++) {
909: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
910: }
911: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
912: } else {
913: if (!$need_row_start) {
914: $result .= '</tr>';
915: }
916: $result .= '</table>';
917: }
918: return $result;
919: }
920:
921: }
922:
923: sub showallfoils {
924: if (defined($env{'form.showallfoils'})) {
925: my ($symb)=&Apache::lonnet::whichuser();
926: if (($env{'request.state'} eq 'construct') ||
927: ($env{'user.adv'} && $symb eq '') ||
928: ($Apache::lonhomework::viewgrades) ) {
929: return 1;
930: }
931: }
932: if ($Apache::lonhomework::type eq 'survey') { return 1; }
933: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
934: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
935: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
936:
937: return 0;
938: }
939:
940: =pod
941:
942: =item &getresponse();
943:
944: Retreives the current submitted response, helps out in the case of
945: scantron mode.
946:
947: Returns either the exact text of the submission, or a bubbled response
948: converted to something usable.
949:
950: Optional Arguments:
951: $offset - (defaults to 1) if a problem has more than one bubble
952: response, pass in the number of the bubble wanted, (the
953: first bubble associated with a problem has an offset of 1,
954: the second bubble is 2
955:
956: $resulttype - undef -> a number between 0 and 25
957: 'A is 1' -> a number between 1 and 26
958: 'letter' -> a letter between 'A' and 'Z'
959: $lines - undef problem only needs a single line of bubbles.
960: nonzero Problem wants the first nonempty response in
961: $lines lines of bubbles.
962: $bubbles_per_line - Must be provided if lines is defined.. number of
963: bubbles on a line.
964:
965: =cut
966:
967: sub getresponse {
968: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
969: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
970: my $response;
971: if (!defined($offset)) {
972: $offset=1;
973: } else {
974: $formparm.=":$offset";
975: }
976: if (!defined($lines)) {
977: $lines = 1;
978: }
979: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
980: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
981: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
982: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
983: if ($env{'form.submitted'} eq 'scantron') {
984: my $part = $Apache::inputtags::part;
985: my $id = $Apache::inputtags::response[-1];
986:
987: my $line;
988: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
989: if (!$startline) {
990: $startline = $Apache::lonxml::counter;
991: }
992: for ($line = 0; $line < $lines; $line++) {
993: my $theline = $startline+$offset-1+$line;
994: $response = $env{"scantron.$theline.answer"};
995: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
996: last;
997: }
998:
999: }
1000:
1001: # save bubbled letter for later
1002: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1003: $response;
1004: if ($resulttype ne 'letter') {
1005: if ($resulttype eq 'A is 1') {
1006: $response = $let_to_num{$response}+1;
1007: } else {
1008: $response = $let_to_num{$response};
1009: }
1010: if ($response ne "") {
1011: $response += $line * $bubbles_per_line;
1012: }
1013: } else {
1014: if ($response ne "") {
1015: $response = chr(ord($response) + $line * $bubbles_per_line);
1016: }
1017: }
1018:
1019: } else {
1020: $response = $env{$formparm};
1021: }
1022: #
1023: # If we have a nonempty answer, correct the numeric value
1024: # of the answer for the line on which it was found.
1025: #
1026:
1027: return $response;
1028: }
1029:
1030: =pod
1031:
1032: =item &repetition();
1033:
1034: Returns the number of lines that are required to encode the weight.
1035: (Currently expects that there are 10 bubbles per line)
1036:
1037: =cut
1038:
1039: sub repetition {
1040: my $id = $Apache::inputtags::part;
1041: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1042: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1043: my $repetition = int($weight/10);
1044: if ($weight % 10 != 0) { $repetition++; }
1045: return $repetition;
1046: }
1047:
1048: =pod
1049:
1050: =item &scored_response();
1051:
1052: Sets the results hash elements
1053:
1054: resource.$part_id.$response_id.awarded - to the floating point
1055: number between 0 and 1 that was awarded on the bubbled input
1056:
1057: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1058:
1059: Returns
1060:
1061: the number of bubble sheet lines that were used (and likely need to
1062: be passed to &Apache::lonxml::increment_counter()
1063:
1064: Arguments
1065:
1066: $part_id - id of the part to grade
1067: $response_id - id of the response to grade
1068:
1069:
1070: =cut
1071:
1072: sub scored_response {
1073: my ($part,$id)=@_;
1074: my $repetition=&repetition();
1075: my $score=0;
1076: for (my $i=0;$i<$repetition;$i++) {
1077: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1078: my $increase=&Apache::response::getresponse($i+1);
1079: if ($increase ne '') { $score+=$increase+1; }
1080: }
1081: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1082: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1083: my $pcr=$score/$weight;
1084: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1085: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1086: 'ASSIGNED_SCORE';
1087: return $repetition;
1088: }
1089:
1090: sub whichorder {
1091: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1092: #&Apache::lonxml::debug("man $max randomize $randomize");
1093: if (!defined(@{ $$hash{'names'} })) { return; }
1094: my @names = @{ $$hash{'names'} };
1095: my @whichopt =();
1096: my (%top,@toplist,%bottom,@bottomlist);
1097: if (!($showall || ($randomize eq 'no'))) {
1098: my $current=0;
1099: foreach my $name (@names) {
1100: $current++;
1101: if ($$hash{"$name.location"} eq 'top') {
1102: $top{$name}=$current;
1103: } elsif ($$hash{"$name.location"} eq 'bottom') {
1104: $bottom{$name}=$current;
1105: }
1106: }
1107: }
1108: my $topcount=0;
1109: my $bottomcount=0;
1110: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1111: && ($#names > -1)) {
1112: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1113: my $aopt;
1114: if ($showall || ($randomize eq 'no')) {
1115: $aopt=0;
1116: } else {
1117: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1118: }
1119: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1120: $aopt=splice(@names,$aopt,1);
1121: #&Apache::lonxml::debug("Picked $aopt");
1122: if ($top{$aopt}) {
1123: $toplist[$top{$aopt}]=$aopt;
1124: $topcount++;
1125: } elsif ($bottom{$aopt}) {
1126: $bottomlist[$bottom{$aopt}]=$aopt;
1127: $bottomcount++;
1128: } else {
1129: push (@whichopt,$aopt);
1130: }
1131: }
1132: for (my $i=0;$i<=$#toplist;$i++) {
1133: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1134: }
1135: for (my $i=0;$i<=$#bottomlist;$i++) {
1136: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1137: }
1138: return @whichopt;
1139: }
1140:
1141: sub show_answer {
1142: my $part = $Apache::inputtags::part;
1143: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1144: my $status = $Apache::inputtags::status[-1];
1145: return ( ($award =~ /^correct/
1146: && &Apache::lonhomework::show_problem_status())
1147: || $status eq "SHOW_ANSWER");
1148: }
1149:
1150: sub analyze_store_foilgroup {
1151: my ($shown,$attrs)=@_;
1152: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1153: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1154: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1155: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1156: foreach my $attr (@$attrs) {
1157: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1158: $Apache::response::foilgroup{"$name.".$attr};
1159: }
1160: }
1161: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1162: }
1163:
1164: sub check_if_computed {
1165: my ($token,$parstack,$safeeval,$name)=@_;
1166: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1167: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1168: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1169: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1170: }
1171: }
1172:
1173: sub pick_foil_for_concept {
1174: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1175: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1176: my @names = @{ $Apache::response::conceptgroup{'names'} };
1177: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1178: my $name=$names[$pick];
1179: push @{ $Apache::response::foilgroup{'names'} }, $name;
1180: foreach my $attr (@$attrs) {
1181: $Apache::response::foilgroup{"$name.".$attr} =
1182: $Apache::response::conceptgroup{"$name.".$attr};
1183: }
1184: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1185: $Apache::response::foilgroup{"$name.concept"} = $concept;
1186: &Apache::lonxml::debug("Selecting $name in $concept");
1187: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1188: if ($target eq 'analyze') {
1189: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1190: $concept);
1191: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1192: $Apache::response::conceptgroup{'names'};
1193: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1194: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1195: $name);
1196: foreach my $attr (@$attrs) {
1197: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1198: $Apache::response::conceptgroup{"$name.$attr"};
1199: }
1200: }
1201: }
1202: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1203: $hinthash->{"$part_id.concept.$concept"}=
1204: $Apache::response::conceptgroup{'names'};
1205:
1206: }
1207:
1208: =pod
1209:
1210: =item get_response_param()
1211:
1212: Get a parameter associated with a problem.
1213: Parameters:
1214: $id - the id of the paramater, either a part id,
1215: or a partid and responspe id joined by _
1216: $name - Name of the parameter to fetch
1217: $default - Default value for the paramter.
1218:
1219: =cut
1220:
1221: sub get_response_param {
1222: my ($id,$name,$default)=@_;
1223: my $parameter;
1224: if ($env{'request.state'} eq 'construct' &&
1225: defined($Apache::inputtags::params{$name})) {
1226: $parameter=$Apache::inputtags::params{$name};
1227: } else {
1228: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1229: }
1230: if (!defined($parameter) || $parameter eq '') {
1231: $parameter = $default;
1232: }
1233: return $parameter;
1234: }
1235:
1236: sub submitted {
1237: my ($who)=@_;
1238:
1239: # when scatron grading any submission is a submission
1240: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1241: # if the caller only cared if this was a scantron submission
1242: if ($who eq 'scantron') { return 0; }
1243: # if the Submit Answer button for this particular part was pressed
1244: my $partid=$Apache::inputtags::part;
1245: if ($env{'form.submitted'} eq "part_$partid") {
1246: return 1;
1247: }
1248: if ($env{'form.submitted'} eq "yes"
1249: && defined($env{'form.submit_'.$partid})) {
1250: return 1;
1251: }
1252: # Submit All button on a .page was pressed
1253: if (defined($env{'form.all_submit'})) { return 1; }
1254: # otherwise no submission occurred
1255: return 0;
1256: }
1257:
1258: sub add_to_gradingqueue {
1259: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1260: if ( $courseid eq ''
1261: || $symb eq ''
1262: || $env{'request.state'} eq 'construct'
1263: || $Apache::lonhomework::type ne 'problem') {
1264: return;
1265: }
1266:
1267: my %queue_info = ( 'type' => 'problem',
1268: 'time' => time);
1269:
1270: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1271: $queue_info{'slot'}=
1272: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1273: }
1274:
1275: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1276: if ($result ne 'ok') {
1277: &Apache::lonxml::error("add_to_queue said $result");
1278: }
1279: }
1280:
1281: =pod
1282:
1283: =item check_status()
1284:
1285: basically undef and 0 (both false) mean that they still have work to do
1286: and all true values mean that they can't do any more work
1287:
1288: a return of undef means it is unattempted
1289: a return of 0 means it is attmpted and wrong but still has tries
1290: a return of 1 means it is marked correct
1291: a return of 2 means they have exceed maximum number of tries
1292: a return of 3 means it after the answer date
1293:
1294: =cut
1295:
1296: sub check_status {
1297: my ($id)=@_;
1298: if (!defined($id)) { $id=$Apache::inputtags::part; }
1299: my $curtime=&Apache::lonnet::EXT('system.time');
1300: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1301: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1302: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1303: if ( $opendate && $curtime > $opendate &&
1304: $duedate && $curtime > $duedate &&
1305: $answerdate && $curtime > $answerdate) {
1306: return 3;
1307: }
1308: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1309: if ($status =~ /^correct/) { return 1; }
1310: if (!$status) { return undef; }
1311: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1312: if ($maxtries eq '') { $maxtries=2; }
1313: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1314: if ($curtries < $maxtries) { return 0; }
1315: return 2;
1316: }
1317:
1318: =pod
1319:
1320: =item setup_prior_tries_hash()
1321:
1322: Foreach each past .submission $func is called with 3 arguments
1323: - the mode to set things up for (currently always 'grade')
1324: - the stored .submission string
1325: - The expansion of $data
1326:
1327: $data is an array ref containing elements that are either
1328: - scalars that are other elements of the history hash to pass to $func
1329: - ref to data to be passed untouched to $func
1330:
1331: $questiontype is the questiontype (currently only passed in if
1332: randomizebytry.
1333:
1334: =cut
1335:
1336: sub setup_prior_tries_hash {
1337: my ($func,$data,$questiontype) = @_;
1338: my $part = $Apache::inputtags::part;
1339: my $id = $Apache::inputtags::response[-1];
1340: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1341: my $partprefix = "$i:resource.$part";
1342: my $sub_key = "$partprefix.$id.submission";
1343: next if (!exists($Apache::lonhomework::history{$sub_key}));
1344: my $type_key = "$partprefix.type";
1345: my $type = $Apache::lonhomework::history{$type_key};
1346: my @other_data;
1347: if (ref($data) eq 'ARRAY') {
1348: foreach my $datum (@{ $data }) {
1349: if (ref($datum)) {
1350: push(@other_data,$datum);
1351: } else {
1352: my $info_key = "$i:resource.$part.$id.$datum";
1353: push(@other_data,$Apache::lonhomework::history{$info_key});
1354: }
1355: }
1356: }
1357: if ($questiontype eq 'randomizetry') {
1358: my $order_key = "$partprefix.$id.foilorder";
1359: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1360: if (@whichopts > 0) {
1361: shift(@other_data);
1362: unshift(@other_data,\@whichopts);
1363: }
1364: }
1365: my $output =
1366: &$func('grade',
1367: $Apache::lonhomework::history{$sub_key},
1368: \@other_data);
1369: if (defined($output)) {
1370: $Apache::inputtags::submission_display{$sub_key} = $output;
1371: }
1372: }
1373: }
1374:
1375: 1;
1376: __END__
1377:
1378: =pod
1379:
1380: =cut
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