1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.246 2018/06/06 18:39:55 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::inputtags();
57: use Apache::lonmaxima();
58: use Apache::lonr();
59: use Apache::lontexconvert();
60:
61: BEGIN {
62: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
63: }
64:
65: sub start_response {
66: my ($parstack,$safeeval)=@_;
67: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
68: if ($#Apache::inputtags::import > -1) {
69: &Apache::lonxml::debug("Turning :$id: into");
70: $id = join('_',@Apache::inputtags::import).'_'.$id;
71: &Apache::lonxml::debug("New :$id:");
72: }
73: push (@Apache::inputtags::response,$id);
74: push (@Apache::inputtags::responselist,$id);
75: @Apache::inputtags::inputlist=();
76: if ($Apache::inputtags::part eq '' &&
77: !$Apache::lonhomework::ignore_response_errors) {
78: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
79: }
80: if ($Apache::inputtags::response_with_no_part &&
81: $Apache::inputtags::part ne '0') {
82: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
83: }
84: if ($Apache::inputtags::part eq '0') {
85: $Apache::inputtags::response_with_no_part=1;
86: }
87: return $id;
88: }
89:
90: sub end_response {
91: #pop @Apache::inputtags::response;
92: @Apache::inputtags::inputlist=();
93: return '';
94: }
95:
96: sub start_hintresponse {
97: my ($parstack,$safeeval)=@_;
98: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
99: push (@Apache::inputtags::hint,$id);
100: push (@Apache::inputtags::hintlist,$id);
101: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
102: return $id;
103: }
104:
105: sub end_hintresponse {
106: pop @Apache::inputtags::hint;
107: if (defined($Apache::inputtags::paramstack[-1])) {
108: %Apache::inputtags::params=
109: @{ pop(@Apache::inputtags::paramstack) };
110: }
111: return '';
112: }
113:
114: my @randomseeds;
115: sub pushrandomnumber {
116: my $rand_alg=&Apache::lonnet::get_rand_alg();
117: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
118: $rand_alg eq '64bit2') {
119: # do nothing
120: } else {
121: my @seed=&Math::Random::random_get_seed();
122: push(@randomseeds,\@seed);
123: }
124: &Apache::response::setrandomnumber(@_);
125: }
126: sub poprandomnumber {
127: my $rand_alg=&Apache::lonnet::get_rand_alg();
128: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
129: $rand_alg eq '64bit2') {
130: return;
131: }
132: my $seed=pop(@randomseeds);
133: if ($seed) {
134: &Math::Random::random_set_seed(@$seed);
135: } else {
136: &Apache::lonxml::error("Unable to restore random algorithm.");
137: }
138: }
139:
140: sub setrandomnumber {
141: my ($ignore_id2,$target,$rndseed) = @_;
142: if (!defined($rndseed)) {
143: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target);
144: }
145: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
146: &Apache::lonxml::debug("randseed $rndseed");
147: # $rndseed=unpack("%32i",$rndseed);
148: my $rand_alg=&Apache::lonnet::get_rand_alg();
149: my ($rndmod,$rndmod2);
150:
151: my ($id1,$id2,$shift_amt);
152: if ($Apache::lonhomework::parsing_a_problem) {
153: $id1=$Apache::inputtags::part;
154: if (defined($Apache::inputtags::response[-1])) {
155: $id2=$Apache::inputtags::response[-1];
156: }
157: $shift_amt=scalar(@Apache::inputtags::responselist);
158: } elsif ($Apache::lonhomework::parsing_a_task) {
159: $id1=&Apache::bridgetask::get_dim_id();
160: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
161: $id2=$Apache::bridgetask::instance{$id1}[-1];
162: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
163: } else {
164: $shift_amt=0;
165: }
166: }
167: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
168: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
169: $rand_alg eq '64bit2') {
170: $rndmod=(&Apache::lonnet::numval($id1) << 10);
171: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
172: } elsif ($rand_alg eq '64bit3') {
173: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
174: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
175: } elsif ($rand_alg eq '64bit4') {
176: my $shift=(4*$shift_amt)%30;
177: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
178: if (defined($id2)) {
179: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
180: }
181: } else {
182: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
183: }
184: if ($rndseed =~/([,:])/) {
185: my $char=$1;
186: use integer;
187: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
188: $num1+=$rndmod;
189: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
190: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
191: $rndseed=$num1.$char.$num2;
192: } else {
193: $rndseed+=$rndmod;
194: if($Apache::lonnet::_64bit) {
195: use integer;
196: $rndseed=(($rndseed<<32)>>32);
197: }
198: }
199: &Apache::lonxml::debug("randseed $rndmod $rndseed");
200: &Apache::lonnet::setup_random_from_rndseed($rndseed);
201: return '';
202: }
203:
204: sub meta_parameter_write {
205: my ($name,$type,$default,$display)=@_;
206: my $partref=$Apache::inputtags::part;
207: my $result='<parameter part="'.$Apache::inputtags::part.'"';
208: if (defined($Apache::inputtags::response[-1])) {
209: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
210: $partref.='_'.$Apache::inputtags::response[-1];
211: }
212: $result.= ' name="'.$name.'"'.
213: ' type="'.$type.'"'.
214: (defined($default)?' default="'.$default.'"':'').
215: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
216: .'></parameter>'
217: ."\n";
218: return $result;
219: }
220:
221: sub meta_package_write {
222: my $name=shift;
223: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
224: if(defined($Apache::inputtags::response[-1])) {
225: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
226: }
227: $result.=' package="'.$name.'"></parameter>'."\n";
228: return $result;
229: }
230:
231: sub meta_stores_write {
232: my ($name,$type,$display)=@_;
233: my $partref=$Apache::inputtags::part;
234: my $result = '<stores part="'.$Apache::inputtags::part.'"';
235: if (defined($Apache::inputtags::response[-1])) {
236: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
237: $partref.='_'.$Apache::inputtags::response[-1];
238: }
239: $result.= ' name="'.$name.'"'.
240: ' type="'.$type.'"'.
241: ' display="'.$display.' [Part: '.$partref.']"'.
242: "></stores>\n";
243: }
244:
245: =pod
246:
247: =item mandatory_part_meta()
248:
249: Autogenerate metadata for mandatory
250: input (from RAT or lonparmset) and
251: output (to lonspreadsheet)
252: of each part
253:
254: Note: responseid-specific data 'submission' and 'awarddetail'
255: not available to spreadsheet -> skip here
256:
257: =cut
258:
259:
260: sub mandatory_part_meta {
261: return &meta_package_write('part').
262: &meta_stores_write('solved','string','Problem Status').
263: &meta_stores_write('tries','int_zeropos','Number of Attempts').
264: &meta_stores_write('awarded','float','Partial Credit Factor');
265: }
266:
267: sub meta_part_order {
268: my ($type) = @_;
269: if (@Apache::inputtags::partlist) {
270: my @parts=@Apache::inputtags::partlist;
271: unless ($type eq 'library') {
272: shift(@parts);
273: }
274: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
275: } elsif ($type eq 'library') {
276: return '<partorder></partorder>'."\n";
277: } else {
278: return '<partorder>0</partorder>'."\n";
279: }
280: }
281:
282: sub meta_response_order {
283: if (@Apache::inputtags::responselist) {
284: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
285: '</responseorder>'."\n";
286: }
287: }
288:
289: sub check_for_previous {
290: my ($curresponse,$partid,$id,$last,$type) = @_;
291: my %previous;
292: $previous{'used'} = 0;
293: my $questiontype = $Apache::lonhomework::type;
294: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
295: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
296: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
297: if ( $last && $key =~ /^(\d+):/ ) {
298: next if ($1 >= $last);
299: }
300: &Apache::lonxml::debug("Trying $key");
301: my $pastresponse=$Apache::lonhomework::history{$key};
302: if ($pastresponse eq $curresponse) {
303: my $history;
304: if ( $key =~ /^(\d+):/ ) {
305: $history=$1;
306: next if ((($questiontype eq 'randomizetry') ||
307: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
308: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
309: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
310: $previous{'last'}='0';
311: push(@{ $previous{'version'} },$history);
312: } else {
313: next if ((($questiontype eq 'randomizetry') ||
314: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
315: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
316: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
317: $previous{'last'}='1';
318: }
319: $previous{'used'} = 1;
320: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
321: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
322: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
323: } elsif ($type eq 'ci') {
324: if (lc($pastresponse) eq lc($curresponse)) {
325: if ($key =~ /^(\d+):/) {
326: my $history = $1;
327: next if (($questiontype eq 'randomizetry') &&
328: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
329: push (@{$previous{'versionci'}},$history);
330: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
331: $previous{'usedci'} = 1;
332: }
333: }
334: }
335: }
336: }
337: &Apache::lonhomework::showhash(%previous);
338: return %previous;
339: }
340:
341: sub handle_previous {
342: my ($previous,$ad)=@_;
343: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
344: if ($$previous{'last'}) {
345: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
346: push(@Apache::inputtags::previous_version,$$previous{'version'});
347: } elsif (($Apache::lonhomework::type ne 'survey') &&
348: ($Apache::lonhomework::type ne 'surveycred') &&
349: ($Apache::lonhomework::type ne 'anonsurvey') &&
350: ($Apache::lonhomework::type ne 'anonsurveycred')) {
351: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
352: push(@Apache::inputtags::previous_version,$$previous{'version'});
353: }
354: }
355: }
356:
357: sub view_or_modify {
358: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
359: my $myself=0;
360: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
361: $myself=1;
362: }
363: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
364: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
365: if ($mgr) { return "M"; }
366: if ($vgr) { return "V"; }
367: if ($myself) { return "V"; }
368: return '';
369: }
370:
371: sub start_dataresponse {
372: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
373: my $id = &Apache::response::start_response($parstack,$safeeval);
374: my $result;
375: if ($target eq 'web') {
376: $result = $token->[2]->{'display'}.':';
377: } elsif ($target eq 'meta') {
378: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
379: $token->[2]->{'type'},
380: $token->[2]->{'display'});
381: $result .= &Apache::response::meta_package_write('dataresponse');
382: }
383: return $result;
384: }
385:
386: sub end_dataresponse {
387: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
388: my $result;
389: if ( $target eq 'web' ) {
390: } elsif ($target eq 'grade' ) {
391: if ( defined $env{'form.submitted'}) {
392: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
393: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
394: if ($allowed) {
395: &Apache::response::setup_params('dataresponse',$safeeval);
396: my $partid = $Apache::inputtags::part;
397: my $id = $Apache::inputtags::response['-1'];
398: my $response = $env{'form.HWVAL_'.$id};
399: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
400: if ( $response =~ /[^\s]/) {
401: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
402: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
403: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
404: }
405: } else {
406: $result=&mt('Not Permitted to change values');
407: }
408: }
409: }
410: &Apache::response::end_response;
411: return $result;
412: }
413:
414: sub start_customresponse {
415: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
416: my $id = &Apache::response::start_response($parstack,$safeeval);
417: push(@Apache::lonxml::namespace,'customresponse');
418: my $result;
419: @Apache::response::custom_answer=();
420: @Apache::response::custom_answer_type=();
421: &Apache::lonxml::register('Apache::response',('answer'));
422: if ($target eq 'web') {
423: if ( &Apache::response::show_answer() ) {
424: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
425: $safeeval);
426: $Apache::inputtags::answertxt{$id}=[$answer];
427: }
428: } elsif ($target eq 'edit') {
429: $result.=&Apache::edit::tag_start($target,$token);
430: $result.=&Apache::edit::text_arg('String to display for answer:',
431: 'answerdisplay',$token,'50');
432: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
433: } elsif ($target eq 'modified') {
434: my $constructtag;
435: $constructtag=&Apache::edit::get_new_args($token,$parstack,
436: $safeeval,'answerdisplay');
437: if ($constructtag) {
438: $result = &Apache::edit::rebuild_tag($token);
439: }
440: } elsif ($target eq 'answer' || $target eq 'grade') {
441: &Apache::response::reset_params();
442: } elsif ($target eq 'meta') {
443: $result .= &Apache::response::meta_package_write('customresponse');
444: }
445: return $result;
446: }
447:
448: sub end_customresponse {
449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
450: my $result;
451: my $part=$Apache::inputtags::part;
452: my $id=$Apache::inputtags::response[-1];
453: if ( $target eq 'grade' && &Apache::response::submitted() ) {
454: my $response = &Apache::response::getresponse();
455: if ($Apache::lonhomework::type eq 'exam' ||
456: &Apache::response::submitted('scantron')) {
457: &Apache::response::scored_response($part,$id);
458: } elsif ( $response =~ /[^\s]/ &&
459: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
460: if (!$Apache::lonxml::default_homework_loaded) {
461: &Apache::lonxml::default_homework_load($safeeval);
462: }
463: my %previous = &Apache::response::check_for_previous($response,
464: $part,$id);
465: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
466: $response;
467: my $error;
468: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
469: $response;
470:
471: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
472: if (!&Apache::inputtags::valid_award($award)) {
473: $error = $award;
474: $award = 'ERROR';
475: }
476: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' ||
477: $award eq 'EXACT_ANS')) {
478: if ($Apache::lonhomework::type eq 'survey') {
479: $award='SUBMITTED';
480: } elsif ($Apache::lonhomework::type eq 'surveycred') {
481: $award='SUBMITTED_CREDIT';
482: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
483: $award='ANONYMOUS';
484: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
485: $award='ANONYMOUS_CREDIT';
486: }
487: }
488: &Apache::response::handle_previous(\%previous,$award);
489: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
490: $award;
491: if ($award eq 'ASSIGNED_SCORE') {
492: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
493: }
494: if ($error) {
495: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
496: $error;
497: }
498: }
499: } elsif ( $target eq 'answer') {
500: $result = &Apache::response::answer_header('customresponse');
501: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
502: $safeeval);
503: if ($env{'form.answer_output_mode'} ne 'tex') {
504: $answer = '<b>'.$answer.'</b>';
505: }
506: $result .= &Apache::response::answer_part('customresponse',$answer);
507: $result .= &Apache::response::answer_footer('customresponse');
508: }
509: if ($target eq 'web') {
510: &setup_prior_tries_hash(\&format_prior_response_custom);
511: }
512: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
513: $target eq 'tex' || $target eq 'analyze') {
514: my $repetition = &repetition();
515: &Apache::lonxml::increment_counter($repetition,"$part.$id");
516: if ($target eq 'analyze') {
517: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
518: &Apache::lonhomework::set_bubble_lines();
519: }
520: }
521: if ($target eq 'web') {
522: &setup_prior_tries_hash(\&format_prior_response_math);
523: }
524: pop(@Apache::lonxml::namespace);
525: pop(@Apache::response::custom_answer);
526: pop(@Apache::response::custom_answer_type);
527: &Apache::lonxml::deregister('Apache::response',('answer'));
528: &Apache::response::end_response();
529: return $result;
530: }
531:
532: sub format_prior_response_custom {
533: my ($mode,$answer) =@_;
534: if (ref($answer) eq 'ARRAY') {
535: $answer = '('.join(', ', @{ $answer }).')';
536: }
537: return '<span class="LC_prior_custom">'.
538: &HTML::Entities::encode($answer,'"<>&').'</span>';
539: }
540:
541: sub start_mathresponse {
542: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
543: my $id = &Apache::response::start_response($parstack,$safeeval);
544: push(@Apache::lonxml::namespace,'mathresponse');
545: my $result;
546: @Apache::response::custom_answer=();
547: @Apache::response::custom_answer_type=();
548: &Apache::lonxml::register('Apache::response',('answer'));
549: if ($target eq 'web') {
550: if ( &Apache::response::show_answer() ) {
551: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
552: $safeeval);
553: $Apache::inputtags::answertxt{$id}=[$answer];
554: }
555:
556: } elsif ($target eq 'edit') {
557: $result.=&Apache::edit::tag_start($target,$token);
558: $result.=&Apache::edit::text_arg('String to display for answer:',
559: 'answerdisplay',$token,'50');
560: $result.=&Apache::edit::select_arg('Algebra System:',
561: 'cas',
562: ['maxima','R'],
563: $token);
564: $result.=&Apache::edit::text_arg('Argument Array:',
565: 'args',$token).
566: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
567: $result.=&Apache::edit::text_arg('Libraries:',
568: 'libraries',$token).
569: &Apache::loncommon::help_open_topic('Maxima_Libraries');
570: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
571: } elsif ($target eq 'modified') {
572: my $constructtag;
573: $constructtag=&Apache::edit::get_new_args($token,$parstack,
574: $safeeval,'answerdisplay','cas','args','libraries');
575: if ($constructtag) {
576: $result = &Apache::edit::rebuild_tag($token);
577: }
578: } elsif ($target eq 'answer' || $target eq 'grade') {
579: &Apache::response::reset_params();
580: } elsif ($target eq 'meta') {
581: $result .= &Apache::response::meta_package_write('mathresponse');
582: }
583: return $result;
584: }
585:
586: sub end_mathresponse {
587: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
588: my $result;
589: my $part=$Apache::inputtags::part;
590: my $id=$Apache::inputtags::response[-1];
591: if ( $target eq 'grade' && &Apache::response::submitted() ) {
592: my $response = &Apache::response::getresponse();
593: if ( $response =~ /[^\s]/ ) {
594: if (!$Apache::lonxml::default_homework_loaded) {
595: &Apache::lonxml::default_homework_load($safeeval);
596: }
597: my %previous = &Apache::response::check_for_previous($response,
598: $part,$id);
599: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
600: $response;
601: my $error;
602: my $award;
603: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
604: if ($cas eq 'maxima') {
605: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
606: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
607: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
608: }
609: if ($cas eq 'R') {
610: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
611: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
612: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
613: }
614:
615: if (!&Apache::inputtags::valid_award($award)) {
616: $error = $award;
617: $award = 'ERROR';
618: }
619: if (($award eq 'INCORRECT' || $award eq 'APPROX_ANS' ||
620: $award eq 'EXACT_ANS')) {
621: if ($Apache::lonhomework::type eq 'survey') {
622: $award='SUBMITTED';
623: } elsif ($Apache::lonhomework::type eq 'surveycred') {
624: $award='SUBMITTED_CREDIT';
625: } elsif ($Apache::lonhomework::type eq 'anonsurvey') {
626: $award='ANONYMOUS';
627: } elsif ($Apache::lonhomework::type eq 'anonsurveycred') {
628: $award='ANONYMOUS_CREDIT';
629: }
630: }
631: &Apache::response::handle_previous(\%previous,$award);
632: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
633: $award;
634: if ($error) {
635: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
636: $error;
637: }
638: }
639: }
640:
641: pop(@Apache::lonxml::namespace);
642: pop(@Apache::response::custom_answer);
643: pop(@Apache::response::custom_answer_type);
644: &Apache::lonxml::deregister('Apache::response',('answer'));
645: &Apache::response::end_response();
646: return $result;
647: }
648:
649: sub format_prior_response_math {
650: my ($mode,$answer) =@_;
651: return '<span class="LC_prior_math">'.
652: &HTML::Entities::encode($answer,'"<>&').'</span>';
653: }
654:
655: sub implicit_multiplication {
656: my ($expression)=@_;
657: # Escape scientific notation, so 3e8 does not become 3*e*8
658: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
659: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
660: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
661: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
662: # Fill in multiplication signs
663: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
664: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
665: # )( -> )*(; ) ( -> )*(
666: $expression=~s/\)\s*\(/\)\*\(/gs;
667: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
668: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
669: # a ( -> a*(
670: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
671: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
672: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
673: # 3&8 -> 3e8; 3&-4 -> 3e-4
674: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
675: return $expression;
676: }
677:
678: sub start_answer {
679: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
680: my $result;
681: push(@Apache::response::custom_answer,
682: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
683: push(@Apache::response::custom_answer_type,
684: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
685: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
686: if ($target eq "edit" ) {
687: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
688: $result.=&Apache::edit::editfield($token->[1],
689: $Apache::response::custom_answer[-1],
690: '',80,4);
691: } elsif ( $target eq "modified" ) {
692: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
693: }
694: return $result;
695: }
696:
697: sub end_answer {
698: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
699: if ($target eq 'edit' ) {
700: return &Apache::edit::end_table();
701: }
702: }
703:
704: sub decide_package {
705: my ($tagstack)=@_;
706: my $package;
707: if ($$tagstack[-1] eq 'parameter') {
708: $package='part';
709: } else {
710: my $i=-1;
711: while (defined($$tagstack[$i])) {
712: if ($$tagstack[$i] =~ /(response|hint)$/) {
713: $package=$$tagstack[$i];
714: last;
715: }
716: $i--;
717: }
718: }
719: return $package;
720: }
721:
722: sub start_responseparam {
723: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
724: my $result='';
725: if ($target eq 'meta') {
726: $result = &meta_parameter_write($token->[2]->{'name'},
727: $token->[2]->{'type'},
728: $token->[2]->{'default'},
729: $token->[2]->{'description'});
730: } elsif ($target eq 'edit') {
731: $result.=&Apache::edit::tag_start($target,$token);
732: my $optionlist;
733: my $package=&decide_package($tagstack);
734: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
735: if ($key =~ /^\Q$package\E&(.*)&display$/) {
736: $optionlist.='<option value="'.$1.'">'.
737: $Apache::lonnet::packagetab{$key}.'</option>';
738: }
739: }
740: if (defined($optionlist)) {
741: $result.=&mt('Use template:').' <select name="'.
742: &Apache::edit::html_element_name('parameter_package').'">'.
743: '<option value=""></option>'.$optionlist.'</select><br />';
744: }
745: $result.=&Apache::edit::text_arg('Name:','name',$token).
746: &Apache::edit::text_arg('Type:','type',$token).
747: &Apache::edit::text_arg('Description:','description',$token).
748: &Apache::edit::text_arg('Default:','default',$token).
749: "</td></tr>";
750: $result.=&Apache::edit::end_table;
751: } elsif ($target eq 'modified') {
752: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
753: $safeeval,'name','type',
754: 'description','default');
755: my $element=&Apache::edit::html_element_name('parameter_package');
756: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
757: my $name=$env{"form.$element"};
758: my $tag=&decide_package($tagstack);
759: $token->[2]->{'name'}=$name;
760: $token->[2]->{'type'}=
761: $Apache::lonnet::packagetab{"$tag&$name&type"};
762: $token->[2]->{'description'}=
763: $Apache::lonnet::packagetab{"$tag&$name&display"};
764: $token->[2]->{'default'}=
765: $Apache::lonnet::packagetab{"$tag&$name&default"};
766: $token->[3] = ['name','type','description','default'];
767: $constructtag=1;
768: }
769: if ($constructtag) {
770: $result = &Apache::edit::rebuild_tag($token);
771: }
772: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
773: $target eq 'tex' || $target eq 'analyze' ) {
774: if ($env{'request.state'} eq 'construct') {
775: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
776: my $default=&Apache::lonxml::get_param('default',$parstack,
777: $safeeval);
778: if ($name) {$Apache::inputtags::params{$name}=$default;}
779: }
780: }
781: return $result;
782: }
783:
784: sub end_responseparam {
785: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
786: if ($target eq 'edit') { return ('','no'); }
787: return '';
788: }
789:
790: sub start_parameter {
791: return &start_responseparam(@_);
792: }
793:
794: sub end_parameter {
795: return &end_responseparam(@_);
796: }
797:
798: sub reset_params {
799: %Apache::inputtags::params=();
800: }
801:
802: sub setup_params {
803: my ($tag,$safeeval) = @_;
804:
805: if ($env{'request.state'} eq 'construct') { return; }
806: my %paramlist=();
807: foreach my $key (keys(%Apache::lonnet::packagetab)) {
808: if ($key =~ /^\Q$tag\E/) {
809: my ($package,$name) = split(/&/,$key);
810: $paramlist{$name}=1;
811: }
812: }
813: foreach my $key (keys(%paramlist)) {
814: my $entry= 'resource.'.$Apache::inputtags::part;
815: if (defined($Apache::inputtags::response[-1])) {
816: $entry.='_'.$Apache::inputtags::response[-1];
817: }
818: $entry.='.'.$key;
819: &Apache::lonxml::debug("looking for $entry");
820: my $value = &Apache::lonnet::EXT("$entry");
821: &Apache::lonxml::debug("$key has value :$value:");
822: if ($value eq 'con_lost' || $value =~ /^error:/) {
823: &Apache::lonxml::debug("using nothing");
824: $Apache::inputtags::params{$key}='';
825: } else {
826: my $string="{return qq\0".$value."\0}";
827: my $newvalue=&Apache::run::run($string,$safeeval,1);
828: if (defined($newvalue)) { $value=$newvalue; }
829: $Apache::inputtags::params{$key}=$value;
830: }
831: }
832: }
833:
834: {
835: my @answer_bits;
836: my $need_row_start;
837:
838: sub answer_header {
839: my ($type,$increment,$rows) = @_;
840: my $result;
841: if ($env{'form.answer_output_mode'} eq 'tex') {
842: undef(@answer_bits);
843: my $bit;
844: if ($Apache::lonhomework::type eq 'exam') {
845: $bit = ($Apache::lonxml::counter+$increment).') ';
846: } else {
847: $bit .= ' '.&mt('Answer for Part: [_1]',
848: '\verb|'.$Apache::inputtags::part.'|').' ';
849: }
850: push(@answer_bits,$bit);
851: } else {
852: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
853: $result = '<table border="1"><tr>';
854: if ($Apache::lonhomework::type eq 'exam') {
855: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
856: } else {
857: $result .= $td.&mt('Answer for Part: [_1]',
858: $Apache::inputtags::part).'</td>';
859: }
860: $result .= "\n";
861: $need_row_start = 0;
862: }
863: return $result;
864: }
865:
866: sub next_answer {
867: my ($type) = @_;
868: my $result;
869: if ($env{'form.answer_output_mode'} eq 'tex') {
870: # FIXME ... need to do something with tex mode
871: } else {
872: $result .= "</tr>";
873: $need_row_start = 1;
874: }
875: return $result;
876: }
877:
878: sub answer_part {
879: my ($type,$answer,$args) = @_;
880: my $result;
881: if ($env{'form.answer_output_mode'} eq 'tex') {
882: if (!$args->{'no_verbatim'}) {
883: my $to_use='|';
884: foreach my $value (32..126) {
885: my $char=pack('c',$value);
886: if ($answer !~ /\Q$char\E/) {
887: $to_use=$char;
888: last;
889: }
890: }
891: my $fullanswer=$answer;
892: $answer='';
893: foreach my $element (split(/[\;]/,$fullanswer)) {
894: if ($element ne '') {
895: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
896: }
897: }
898: }
899: if ($answer ne '') {
900: push(@answer_bits,$answer);
901: }
902: } else {
903: if ($need_row_start) {
904: $result .= '<tr>';
905: $need_row_start = 0;
906: }
907: $result .= '<td>'.$answer.'</td>';
908: }
909: return $result;
910: }
911:
912: sub answer_footer {
913: my ($type) = @_;
914: my $result;
915: if ($env{'form.answer_output_mode'} eq 'tex') {
916: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
917: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
918: for (my $i=1;$i<=$#answer_bits;$i++) {
919: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
920: }
921: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
922: } else {
923: if (!$need_row_start) {
924: $result .= '</tr>';
925: }
926: $result .= '</table>';
927: }
928: return $result;
929: }
930:
931: }
932:
933: sub showallfoils {
934: if (defined($env{'form.showallfoils'})) {
935: my ($symb)=&Apache::lonnet::whichuser();
936: if (($env{'request.state'} eq 'construct') ||
937: ($env{'user.adv'} && $symb eq '') ||
938: ($Apache::lonhomework::viewgrades) ) {
939: return 1;
940: }
941: }
942: if ($Apache::lonhomework::type eq 'survey') { return 1; }
943: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
944: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
945: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
946:
947: return 0;
948: }
949:
950: =pod
951:
952: =item &getresponse();
953:
954: Retreives the current submitted response, helps out in the case of
955: scantron mode.
956:
957: Returns either the exact text of the submission, or a bubbled response
958: converted to something usable.
959:
960: Optional Arguments:
961: $offset - (defaults to 1) if a problem has more than one bubble
962: response, pass in the number of the bubble wanted, (the
963: first bubble associated with a problem has an offset of 1,
964: the second bubble is 2
965:
966: $resulttype - undef -> a number between 0 and 25
967: 'A is 1' -> a number between 1 and 26
968: 'letter' -> a letter between 'A' and 'Z'
969: $lines - undef problem only needs a single line of bubbles.
970: nonzero Problem wants the first nonempty response in
971: $lines lines of bubbles.
972: $bubbles_per_line - Must be provided if lines is defined.. number of
973: bubbles on a line.
974:
975: =cut
976:
977: sub getresponse {
978: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
979: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
980: my $response;
981: if (!defined($offset)) {
982: $offset=1;
983: } else {
984: $formparm.=":$offset";
985: }
986: if (!defined($lines)) {
987: $lines = 1;
988: }
989: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
990: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
991: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
992: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
993: if ($env{'form.submitted'} eq 'scantron') {
994: my $part = $Apache::inputtags::part;
995: my $id = $Apache::inputtags::response[-1];
996:
997: my $line;
998: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
999: if (!$startline) {
1000: $startline = $Apache::lonxml::counter;
1001: }
1002: for ($line = 0; $line < $lines; $line++) {
1003: my $theline = $startline+$offset-1+$line;
1004: $response = $env{"scantron.$theline.answer"};
1005: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
1006: last;
1007: }
1008:
1009: }
1010:
1011: # save bubbled letter for later
1012: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1013: $response;
1014: if ($resulttype ne 'letter') {
1015: $response = $let_to_num{$response};
1016: if ($resulttype eq 'A is 1') {
1017: if ($response ne "") {
1018: $response = $response+1;
1019: }
1020: }
1021: if ($response ne "") {
1022: $response += $line * $bubbles_per_line;
1023: }
1024: } else {
1025: if ($response ne "") {
1026: my $raw = $response;
1027: $response = chr(ord($response) + $line * $bubbles_per_line);
1028: }
1029: }
1030:
1031: } else {
1032: $response = $env{$formparm};
1033: }
1034: #
1035: # If we have a nonempty answer, correct the numeric value
1036: # of the answer for the line on which it was found.
1037: #
1038:
1039: return $response;
1040: }
1041:
1042: =pod
1043:
1044: =item &repetition();
1045:
1046: In scalar context:
1047:
1048: returns: the number of lines that are required to encode the weight.
1049: (Default is for 10 bubbles per bubblesheet item; other (integer)
1050: values can be specified by using a custom Bubblesheet format file
1051: with an eighteenth entry (BubblesPerRow) set to the integer
1052: appropriate for the bubblesheets which will be used to assign weights.
1053:
1054: In array context:
1055:
1056: returns: number of lines required to encode weight, and bubbles/line.
1057:
1058: =cut
1059:
1060: sub repetition {
1061: my $id = $Apache::inputtags::part;
1062: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1063: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1064: my $bubbles_per_row;
1065: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1066: ($env{'form.bubbles_per_row'} > 0)) {
1067: $bubbles_per_row = $env{'form.bubbles_per_row'};
1068: } else {
1069: $bubbles_per_row = 10;
1070: }
1071: my $denominator = $bubbles_per_row;
1072: if (($env{'form.scantron_lastbubblepoints'} == 0) &&
1073: ($bubbles_per_row > 1)) {
1074: $denominator = $bubbles_per_row - 1;
1075: }
1076: my $repetition = int($weight/$denominator);
1077: if ($weight % $denominator != 0) { $repetition++; }
1078: if (wantarray) {
1079: return ($repetition,$bubbles_per_row);
1080: }
1081: return $repetition;
1082:
1083: }
1084:
1085: =pod
1086:
1087: =item &scored_response();
1088:
1089: Sets the results hash elements
1090:
1091: resource.$part_id.$response_id.awarded - to the floating point
1092: number between 0 and 1 that was awarded on the bubbled input
1093:
1094: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1095:
1096: Returns
1097:
1098: the number of bubble sheet lines that were used (and likely need to
1099: be passed to &Apache::lonxml::increment_counter()
1100:
1101: Arguments
1102:
1103: $part_id - id of the part to grade
1104: $response_id - id of the response to grade
1105:
1106:
1107: =cut
1108:
1109: sub scored_response {
1110: my ($part,$id)=@_;
1111: my $repetition=&repetition();
1112: my $bubbles_per_row;
1113: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1114: ($env{'form.bubbles_per_row'} > 0)) {
1115: $bubbles_per_row = $env{'form.bubbles_per_row'};
1116: } else {
1117: $bubbles_per_row = 10;
1118: }
1119: my $score=0;
1120: for (my $i=0;$i<$repetition;$i++) {
1121: # A is 1, B is 2, etc.
1122: my $increase=&Apache::response::getresponse($i+1);
1123: unless (($increase == $bubbles_per_row-1) &&
1124: ($env{'form.scantron_lastbubblepoints'} == 0)) {
1125: # (get response return 0-9 and then we add 1)
1126: if ($increase ne '') {
1127: $score+=$increase+1;
1128: }
1129: }
1130: }
1131: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1132: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1133: my $pcr=$score/$weight;
1134: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1135: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1136: 'ASSIGNED_SCORE';
1137: return $repetition;
1138: }
1139:
1140: sub whichorder {
1141: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1142: #&Apache::lonxml::debug("man $max randomize $randomize");
1143: my @names;
1144: if (ref($hash->{'names'}) eq 'ARRAY') {
1145: @names = @{$hash->{'names'}};
1146: }
1147: return if (!@names);
1148: my @whichopt =();
1149: my (%top,@toplist,%bottom,@bottomlist);
1150: if (!($showall || ($randomize eq 'no'))) {
1151: my $current=0;
1152: foreach my $name (@names) {
1153: $current++;
1154: if ($$hash{"$name.location"} eq 'top') {
1155: $top{$name}=$current;
1156: } elsif ($$hash{"$name.location"} eq 'bottom') {
1157: $bottom{$name}=$current;
1158: }
1159: }
1160: }
1161: my $topcount=0;
1162: my $bottomcount=0;
1163: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1164: && ($#names > -1)) {
1165: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1166: my $aopt;
1167: if ($showall || ($randomize eq 'no')) {
1168: $aopt=0;
1169: } else {
1170: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1171: }
1172: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1173: $aopt=splice(@names,$aopt,1);
1174: #&Apache::lonxml::debug("Picked $aopt");
1175: if ($top{$aopt}) {
1176: $toplist[$top{$aopt}]=$aopt;
1177: $topcount++;
1178: } elsif ($bottom{$aopt}) {
1179: $bottomlist[$bottom{$aopt}]=$aopt;
1180: $bottomcount++;
1181: } else {
1182: push (@whichopt,$aopt);
1183: }
1184: }
1185: for (my $i=0;$i<=$#toplist;$i++) {
1186: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1187: }
1188: for (my $i=0;$i<=$#bottomlist;$i++) {
1189: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1190: }
1191: return @whichopt;
1192: }
1193:
1194: sub show_answer {
1195: my $part = $Apache::inputtags::part;
1196: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1197: my $status = $Apache::inputtags::status[-1];
1198: my $canshow = 0;
1199: if ($award =~ /^correct/) {
1200: if (($Apache::lonhomework::history{"resource.$part.awarded"} >= 1) ||
1201: (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/)) {
1202: $canshow = 1;
1203: }
1204: }
1205: return (($canshow && &Apache::lonhomework::show_problem_status())
1206: || $status eq "SHOW_ANSWER");
1207: }
1208:
1209: sub analyze_store_foilgroup {
1210: my ($shown,$attrs)=@_;
1211: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1212: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1213: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1214: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1215: foreach my $attr (@$attrs) {
1216: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1217: $Apache::response::foilgroup{"$name.".$attr};
1218: }
1219: }
1220: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1221: }
1222:
1223: sub check_if_computed {
1224: my ($token,$parstack,$safeeval,$name)=@_;
1225: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1226: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1227: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1228: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1229: }
1230: }
1231:
1232: sub pick_foil_for_concept {
1233: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1234: my @names;
1235: if (ref($Apache::response::conceptgroup{'names'}) eq 'ARRAY') {
1236: @names = @{ $Apache::response::conceptgroup{'names'} };
1237: }
1238: return if (!@names);
1239: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1240: my $name=$names[$pick];
1241: push @{ $Apache::response::foilgroup{'names'} }, $name;
1242: foreach my $attr (@$attrs) {
1243: $Apache::response::foilgroup{"$name.".$attr} =
1244: $Apache::response::conceptgroup{"$name.".$attr};
1245: }
1246: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1247: $Apache::response::foilgroup{"$name.concept"} = $concept;
1248: &Apache::lonxml::debug("Selecting $name in $concept");
1249: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1250: if ($target eq 'analyze') {
1251: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1252: $concept);
1253: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1254: $Apache::response::conceptgroup{'names'};
1255: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1256: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1257: $name);
1258: foreach my $attr (@$attrs) {
1259: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1260: $Apache::response::conceptgroup{"$name.$attr"};
1261: }
1262: }
1263: }
1264: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1265: $hinthash->{"$part_id.concept.$concept"}=
1266: $Apache::response::conceptgroup{'names'};
1267:
1268: }
1269:
1270: =pod
1271:
1272: =item get_response_param()
1273:
1274: Get a parameter associated with a problem.
1275: Parameters:
1276: $id - the id of the paramater, either a part id,
1277: or a partid and responspe id joined by _
1278: $name - Name of the parameter to fetch
1279: $default - Default value for the paramter.
1280:
1281: =cut
1282:
1283: sub get_response_param {
1284: my ($id,$name,$default)=@_;
1285: my $parameter;
1286: if ($env{'request.state'} eq 'construct' &&
1287: defined($Apache::inputtags::params{$name})) {
1288: $parameter=$Apache::inputtags::params{$name};
1289: } else {
1290: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1291: }
1292: if (!defined($parameter) || $parameter eq '') {
1293: $parameter = $default;
1294: }
1295: return $parameter;
1296: }
1297:
1298: sub submitted {
1299: my ($who)=@_;
1300:
1301: # when scatron grading any submission is a submission
1302: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1303: # if the caller only cared if this was a scantron submission
1304: if ($who eq 'scantron') { return 0; }
1305: # if the Submit Answer button for this particular part was pressed
1306: my $partid=$Apache::inputtags::part;
1307: if ($env{'form.submitted'} eq "part_$partid") {
1308: return 1;
1309: }
1310: if ($env{'form.submitted'} eq "yes"
1311: && defined($env{'form.submit_'.$partid})) {
1312: return 1;
1313: }
1314: # Submit All button on a .page was pressed
1315: if (defined($env{'form.all_submit'})) { return 1; }
1316: # otherwise no submission occurred
1317: return 0;
1318: }
1319:
1320: sub add_to_gradingqueue {
1321: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1322: if ( $courseid eq ''
1323: || $symb eq ''
1324: || $env{'request.state'} eq 'construct'
1325: || $Apache::lonhomework::type ne 'problem') {
1326: return;
1327: }
1328:
1329: my %queue_info = ( 'type' => 'problem',
1330: 'time' => time);
1331:
1332: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1333: $queue_info{'slot'}=
1334: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1335: }
1336:
1337: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1338: if ($result ne 'ok') {
1339: &Apache::lonxml::error("add_to_queue said $result");
1340: }
1341: }
1342:
1343: =pod
1344:
1345: =item check_status()
1346:
1347: basically undef and 0 (both false) mean that they still have work to do
1348: and all true values mean that they can't do any more work
1349:
1350: a return of undef means it is unattempted
1351: a return of 0 means it is both attempted and still has tries and
1352: is wrong or is only partially correct, and retries
1353: are allowed.
1354: a return of 1 means it is marked correct
1355: a return of 2 means they have exceeded maximum number of tries
1356: a return of 3 means it is after the answer date
1357:
1358: =cut
1359:
1360: sub check_status {
1361: my ($id)=@_;
1362: if (!defined($id)) { $id=$Apache::inputtags::part; }
1363: my $curtime=&Apache::lonnet::EXT('system.time');
1364: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1365: my $duedate=&Apache::lonhomework::due_date($id);
1366: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1367: if ( $opendate && $curtime > $opendate &&
1368: $duedate && $curtime > $duedate &&
1369: $answerdate && $curtime > $answerdate) {
1370: return 3;
1371: }
1372: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1373: if ($status =~ /^correct/) {
1374: my $awarded=&Apache::lonnet::EXT("user.resource.resource.$id.awarded");
1375: my $retrypartial=&Apache::lonnet::EXT("resource.$id.retrypartial");
1376: unless (($retrypartial =~ /^1|on|yes$/) && ($awarded <1)) {
1377: return 1;
1378: }
1379: }
1380: if (!$status) { return undef; }
1381: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1382: if ($maxtries eq '') { $maxtries=2; }
1383: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1384: if ($curtries < $maxtries) { return 0; }
1385: return 2;
1386: }
1387:
1388: =pod
1389:
1390: =item setup_prior_tries_hash()
1391:
1392: Foreach each past .submission $func is called with 3 arguments
1393: - the mode to set things up for (currently always 'grade')
1394: - the stored .submission string
1395: - The expansion of $data
1396:
1397: $data is an array ref containing elements that are either
1398: - scalars that are other elements of the history hash to pass to $func
1399: - ref to data to be passed untouched to $func
1400:
1401: $questiontype is the questiontype (currently only passed in if
1402: randomizebytry.
1403:
1404: =cut
1405:
1406: sub setup_prior_tries_hash {
1407: my ($func,$data,$questiontype) = @_;
1408: my $part = $Apache::inputtags::part;
1409: my $id = $Apache::inputtags::response[-1];
1410: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1411: my $partprefix = "$i:resource.$part";
1412: my $sub_key = "$partprefix.$id.submission";
1413: next if (!exists($Apache::lonhomework::history{$sub_key}));
1414: my $type_key = "$partprefix.type";
1415: my $type = $Apache::lonhomework::history{$type_key};
1416: my @other_data;
1417: if (ref($data) eq 'ARRAY') {
1418: foreach my $datum (@{ $data }) {
1419: if (ref($datum)) {
1420: push(@other_data,$datum);
1421: } else {
1422: my $info_key = "$i:resource.$part.$id.$datum";
1423: push(@other_data,$Apache::lonhomework::history{$info_key});
1424: }
1425: }
1426: }
1427: if ($questiontype eq 'randomizetry') {
1428: my $order_key = "$partprefix.$id.foilorder";
1429: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1430: if (@whichopts > 0) {
1431: shift(@other_data);
1432: unshift(@other_data,\@whichopts);
1433: }
1434: }
1435: my $output =
1436: &$func('grade',
1437: $Apache::lonhomework::history{$sub_key},
1438: \@other_data);
1439: if (defined($output)) {
1440: $Apache::inputtags::submission_display{$sub_key} = $output;
1441: }
1442: }
1443: }
1444:
1445: 1;
1446: __END__
1447:
1448: =pod
1449:
1450: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to response.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / homework