1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.223 2011/06/06 17:17:38 www 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: $Apache::lonhomework::results{'resource.'.$id1.'.rndseed'}=$rndseed;
200: &Apache::lonnet::setup_random_from_rndseed($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: '.$partref.']"'.
242: "></stores>\n";
243: }
244:
245: =pod
246:
247: =item mandatory_part_meta()
248:
249: Autogenerate metadata for mandatory
250: input (from RAT or lonparmset) and
251: output (to lonspreadsheet)
252: of each part
253:
254: Note: responseid-specific data 'submission' and 'awarddetail'
255: not available to spreadsheet -> skip here
256:
257: =cut
258:
259:
260: sub mandatory_part_meta {
261: return &meta_package_write('part').
262: &meta_stores_write('solved','string','Problem Status').
263: &meta_stores_write('tries','int_zeropos','Number of Attempts').
264: &meta_stores_write('awarded','float','Partial Credit Factor');
265: }
266:
267: sub meta_part_order {
268: if (@Apache::inputtags::partlist) {
269: my @parts=@Apache::inputtags::partlist;
270: shift(@parts);
271: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
272: } else {
273: return '<partorder>0</partorder>'."\n";
274: }
275: }
276:
277: sub meta_response_order {
278: if (@Apache::inputtags::responselist) {
279: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
280: '</responseorder>'."\n";
281: }
282: }
283:
284: sub check_for_previous {
285: my ($curresponse,$partid,$id,$last,$type) = @_;
286: my %previous;
287: $previous{'used'} = 0;
288: my $questiontype = $Apache::lonhomework::type;
289: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
290: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
291: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
292: if ( $last && $key =~ /^(\d+):/ ) {
293: next if ($1 >= $last);
294: }
295: &Apache::lonxml::debug("Trying $key");
296: my $pastresponse=$Apache::lonhomework::history{$key};
297: if ($pastresponse eq $curresponse) {
298: my $history;
299: if ( $key =~ /^(\d+):/ ) {
300: $history=$1;
301: next if ((($questiontype eq 'randomizetry') ||
302: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
303: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
304: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
305: $previous{'last'}='0';
306: push(@{ $previous{'version'} },$history);
307: } else {
308: next if ((($questiontype eq 'randomizetry') ||
309: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
310: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
311: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
312: $previous{'last'}='1';
313: }
314: $previous{'used'} = 1;
315: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
316: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
317: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
318: } elsif ($type eq 'ci') {
319: if (lc($pastresponse) eq lc($curresponse)) {
320: if ($key =~ /^(\d+):/) {
321: my $history = $1;
322: next if (($questiontype eq 'randomizetry') &&
323: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
324: push (@{$previous{'versionci'}},$history);
325: $previous{'awardci'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
326: $previous{'usedci'} = 1;
327: }
328: }
329: }
330: }
331: }
332: &Apache::lonhomework::showhash(%previous);
333: return %previous;
334: }
335:
336: sub handle_previous {
337: my ($previous,$ad)=@_;
338: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
339: if ($$previous{'last'}) {
340: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
341: push(@Apache::inputtags::previous_version,$$previous{'version'});
342: } elsif (($Apache::lonhomework::type ne 'survey') &&
343: ($Apache::lonhomework::type ne 'surveycred') &&
344: ($Apache::lonhomework::type ne 'anonsurvey') &&
345: ($Apache::lonhomework::type ne 'anonsurveycred')) {
346: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
347: push(@Apache::inputtags::previous_version,$$previous{'version'});
348: }
349: }
350: }
351:
352: sub view_or_modify {
353: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
354: my $myself=0;
355: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
356: $myself=1;
357: }
358: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
359: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
360: if ($mgr) { return "M"; }
361: if ($vgr) { return "V"; }
362: if ($myself) { return "V"; }
363: return '';
364: }
365:
366: sub start_dataresponse {
367: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
368: my $id = &Apache::response::start_response($parstack,$safeeval);
369: my $result;
370: if ($target eq 'web') {
371: $result = $token->[2]->{'display'}.':';
372: } elsif ($target eq 'meta') {
373: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
374: $token->[2]->{'type'},
375: $token->[2]->{'display'});
376: $result .= &Apache::response::meta_package_write('dataresponse');
377: }
378: return $result;
379: }
380:
381: sub end_dataresponse {
382: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
383: my $result;
384: if ( $target eq 'web' ) {
385: } elsif ($target eq 'grade' ) {
386: if ( defined $env{'form.submitted'}) {
387: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
388: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
389: if ($allowed) {
390: &Apache::response::setup_params('dataresponse',$safeeval);
391: my $partid = $Apache::inputtags::part;
392: my $id = $Apache::inputtags::response['-1'];
393: my $response = $env{'form.HWVAL_'.$id};
394: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
395: if ( $response =~ /[^\s]/) {
396: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
397: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
398: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
399: }
400: } else {
401: $result='Not Permitted to change values.'
402: }
403: }
404: }
405: &Apache::response::end_response;
406: return $result;
407: }
408:
409: sub start_customresponse {
410: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
411: my $id = &Apache::response::start_response($parstack,$safeeval);
412: push(@Apache::lonxml::namespace,'customresponse');
413: my $result;
414: @Apache::response::custom_answer=();
415: @Apache::response::custom_answer_type=();
416: &Apache::lonxml::register('Apache::response',('answer'));
417: if ($target eq 'web') {
418: if ( &Apache::response::show_answer() ) {
419: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
420: $safeeval);
421: $Apache::inputtags::answertxt{$id}=[$answer];
422: }
423: } elsif ($target eq 'edit') {
424: $result.=&Apache::edit::tag_start($target,$token);
425: $result.=&Apache::edit::text_arg('String to display for answer:',
426: 'answerdisplay',$token,'50');
427: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
428: } elsif ($target eq 'modified') {
429: my $constructtag;
430: $constructtag=&Apache::edit::get_new_args($token,$parstack,
431: $safeeval,'answerdisplay');
432: if ($constructtag) {
433: $result = &Apache::edit::rebuild_tag($token);
434: }
435: } elsif ($target eq 'answer' || $target eq 'grade') {
436: &Apache::response::reset_params();
437: } elsif ($target eq 'meta') {
438: $result .= &Apache::response::meta_package_write('customresponse');
439: }
440: return $result;
441: }
442:
443: sub end_customresponse {
444: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
445: my $result;
446: my $part=$Apache::inputtags::part;
447: my $id=$Apache::inputtags::response[-1];
448: if ( $target eq 'grade' && &Apache::response::submitted() ) {
449: my $response = &Apache::response::getresponse();
450: if ($Apache::lonhomework::type eq 'exam' ||
451: &Apache::response::submitted('scantron')) {
452: &Apache::response::scored_response($part,$id);
453: } elsif ( $response =~ /[^\s]/ &&
454: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
455: if (!$Apache::lonxml::default_homework_loaded) {
456: &Apache::lonxml::default_homework_load($safeeval);
457: }
458: my %previous = &Apache::response::check_for_previous($response,
459: $part,$id);
460: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
461: $response;
462: my $error;
463: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
464: $response;
465:
466: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
467: if (!&Apache::inputtags::valid_award($award)) {
468: $error = $award;
469: $award = 'ERROR';
470: }
471: &Apache::response::handle_previous(\%previous,$award);
472: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
473: $award;
474: if ($award eq 'ASSIGNED_SCORE') {
475: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
476: }
477: if ($error) {
478: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
479: $error;
480: }
481: }
482: } elsif ( $target eq 'answer') {
483: $result = &Apache::response::answer_header('customresponse');
484: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
485: $safeeval);
486: if ($env{'form.answer_output_mode'} ne 'tex') {
487: $answer = '<b>'.$answer.'</b>';
488: }
489: $result .= &Apache::response::answer_part('customresponse',$answer);
490: $result .= &Apache::response::answer_footer('customresponse');
491: }
492: if ($target eq 'web') {
493: &setup_prior_tries_hash(\&format_prior_response_math);
494: }
495: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
496: $target eq 'tex' || $target eq 'analyze') {
497: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
498: "$part.$id");
499: if ($target eq 'analyze') {
500: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
501: &Apache::lonhomework::set_bubble_lines();
502: }
503: }
504: pop(@Apache::lonxml::namespace);
505: pop(@Apache::response::custom_answer);
506: pop(@Apache::response::custom_answer_type);
507: &Apache::lonxml::deregister('Apache::response',('answer'));
508: &Apache::response::end_response();
509: return $result;
510: }
511:
512: sub format_prior_response_custom {
513: my ($mode,$answer) =@_;
514: return '<span class="LC_prior_custom">'.
515: &HTML::Entities::encode($answer,'"<>&').'</span>';
516: }
517:
518: sub start_mathresponse {
519: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
520: my $id = &Apache::response::start_response($parstack,$safeeval);
521: push(@Apache::lonxml::namespace,'mathresponse');
522: my $result;
523: @Apache::response::custom_answer=();
524: @Apache::response::custom_answer_type=();
525: &Apache::lonxml::register('Apache::response',('answer'));
526: if ($target eq 'web') {
527: if ( &Apache::response::show_answer() ) {
528: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
529: $safeeval);
530: $Apache::inputtags::answertxt{$id}=[$answer];
531: }
532:
533: } elsif ($target eq 'edit') {
534: $result.=&Apache::edit::tag_start($target,$token);
535: $result.=&Apache::edit::text_arg('String to display for answer:',
536: 'answerdisplay',$token,'50');
537: $result.=&Apache::edit::select_arg('Algebra System:',
538: 'cas',
539: ['maxima','R'],
540: $token);
541: $result.=&Apache::edit::text_arg('Argument Array:',
542: 'args',$token).
543: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
544: $result.=&Apache::edit::text_arg('Libraries:',
545: 'libraries',$token).
546: &Apache::loncommon::help_open_topic('Maxima_Libraries');
547: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
548: } elsif ($target eq 'modified') {
549: my $constructtag;
550: $constructtag=&Apache::edit::get_new_args($token,$parstack,
551: $safeeval,'answerdisplay','cas','args','libraries');
552: if ($constructtag) {
553: $result = &Apache::edit::rebuild_tag($token);
554: }
555: } elsif ($target eq 'answer' || $target eq 'grade') {
556: &Apache::response::reset_params();
557: } elsif ($target eq 'meta') {
558: $result .= &Apache::response::meta_package_write('mathresponse');
559: }
560: return $result;
561: }
562:
563: sub edit_mathresponse_button {
564: my ($id,$field)=@_;
565: my $button=&mt('Edit Answer');
566: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
567: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
568: return(<<ENDFORMULABUTTON);
569: <script type="text/javascript" language="JavaScript">
570: function edit_${id}_${field} (textarea) {
571: thenumber = textarea;
572: thedata = document.forms['lonhomework'].elements[textarea].value;
573: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
574: }
575: </script>
576: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
577: ENDFORMULABUTTON
578: }
579:
580: sub end_mathresponse {
581: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
582: my $result;
583: my $part=$Apache::inputtags::part;
584: my $id=$Apache::inputtags::response[-1];
585: if ( $target eq 'grade' && &Apache::response::submitted() ) {
586: my $response = &Apache::response::getresponse();
587: if ( $response =~ /[^\s]/ ) {
588: if (!$Apache::lonxml::default_homework_loaded) {
589: &Apache::lonxml::default_homework_load($safeeval);
590: }
591: my %previous = &Apache::response::check_for_previous($response,
592: $part,$id);
593: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
594: $response;
595: my $error;
596: my $award;
597: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
598: if ($cas eq 'maxima') {
599: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
600: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
601: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
602: }
603: if ($cas eq 'R') {
604: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
605: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
606: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
607: }
608:
609: if (!&Apache::inputtags::valid_award($award)) {
610: $error = $award;
611: $award = 'ERROR';
612: }
613: &Apache::response::handle_previous(\%previous,$award);
614: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
615: $award;
616: if ($error) {
617: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
618: $error;
619: }
620: }
621: }
622: if ($target eq 'web') {
623: &setup_prior_tries_hash(\&format_prior_response_math);
624: my $partid = $Apache::inputtags::part;
625: my $id = $Apache::inputtags::response[-1];
626: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
627: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
628: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
629: }
630: }
631:
632: pop(@Apache::lonxml::namespace);
633: pop(@Apache::response::custom_answer);
634: pop(@Apache::response::custom_answer_type);
635: &Apache::lonxml::deregister('Apache::response',('answer'));
636: &Apache::response::end_response();
637: return $result;
638: }
639:
640: sub format_prior_response_math {
641: my ($mode,$answer) =@_;
642: return '<span class="LC_prior_math">'.
643: &HTML::Entities::encode($answer,'"<>&').'</span>';
644: }
645:
646: sub implicit_multiplication {
647: my ($expression)=@_;
648: # Escape scientific notation, so 3e8 does not become 3*e*8
649: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
650: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
651: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
652: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
653: # Fill in multiplication signs
654: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
655: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
656: # )( -> )*(; ) ( -> )*(
657: $expression=~s/\)\s*\(/\)\*\(/gs;
658: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
659: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
660: # a ( -> a*(
661: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
662: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
663: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
664: # 3&8 -> 3e8; 3&-4 -> 3e-4
665: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
666: return $expression;
667: }
668:
669: sub start_answer {
670: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
671: my $result;
672: push(@Apache::response::custom_answer,
673: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
674: push(@Apache::response::custom_answer_type,
675: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
676: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
677: if ($target eq "edit" ) {
678: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
679: $result.=&Apache::edit::editfield($token->[1],
680: $Apache::response::custom_answer[-1],
681: '',80,4);
682: } elsif ( $target eq "modified" ) {
683: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
684: }
685: return $result;
686: }
687:
688: sub end_answer {
689: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
690: if ($target eq 'edit' ) {
691: return &Apache::edit::end_table();
692: }
693: }
694:
695: sub decide_package {
696: my ($tagstack)=@_;
697: my $package;
698: if ($$tagstack[-1] eq 'parameter') {
699: $package='part';
700: } else {
701: my $i=-1;
702: while (defined($$tagstack[$i])) {
703: if ($$tagstack[$i] =~ /(response|hint)$/) {
704: $package=$$tagstack[$i];
705: last;
706: }
707: $i--;
708: }
709: }
710: return $package;
711: }
712:
713: sub start_responseparam {
714: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
715: my $result='';
716: if ($target eq 'meta') {
717: $result = &meta_parameter_write($token->[2]->{'name'},
718: $token->[2]->{'type'},
719: $token->[2]->{'default'},
720: $token->[2]->{'description'});
721: } elsif ($target eq 'edit') {
722: $result.=&Apache::edit::tag_start($target,$token);
723: my $optionlist;
724: my $package=&decide_package($tagstack);
725: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
726: if ($key =~ /^\Q$package\E&(.*)&display$/) {
727: $optionlist.='<option value="'.$1.'">'.
728: $Apache::lonnet::packagetab{$key}.'</option>';
729: }
730: }
731: if (defined($optionlist)) {
732: $result.=&mt('Use template:').' <select name="'.
733: &Apache::edit::html_element_name('parameter_package').'">'.
734: '<option value=""></option>'.$optionlist.'</select><br />';
735: }
736: $result.=&Apache::edit::text_arg('Name:','name',$token).
737: &Apache::edit::text_arg('Type:','type',$token).
738: &Apache::edit::text_arg('Description:','description',$token).
739: &Apache::edit::text_arg('Default:','default',$token).
740: "</td></tr>";
741: $result.=&Apache::edit::end_table;
742: } elsif ($target eq 'modified') {
743: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
744: $safeeval,'name','type',
745: 'description','default');
746: my $element=&Apache::edit::html_element_name('parameter_package');
747: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
748: my $name=$env{"form.$element"};
749: my $tag=&decide_package($tagstack);
750: $token->[2]->{'name'}=$name;
751: $token->[2]->{'type'}=
752: $Apache::lonnet::packagetab{"$tag&$name&type"};
753: $token->[2]->{'description'}=
754: $Apache::lonnet::packagetab{"$tag&$name&display"};
755: $token->[2]->{'default'}=
756: $Apache::lonnet::packagetab{"$tag&$name&default"};
757: $token->[3] = ['name','type','description','default'];
758: $constructtag=1;
759: }
760: if ($constructtag) {
761: $result = &Apache::edit::rebuild_tag($token);
762: }
763: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
764: $target eq 'tex' || $target eq 'analyze' ) {
765: if ($env{'request.state'} eq 'construct') {
766: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
767: my $default=&Apache::lonxml::get_param('default',$parstack,
768: $safeeval);
769: if ($name) {$Apache::inputtags::params{$name}=$default;}
770: }
771: }
772: return $result;
773: }
774:
775: sub end_responseparam {
776: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
777: if ($target eq 'edit') { return ('','no'); }
778: return '';
779: }
780:
781: sub start_parameter {
782: return &start_responseparam(@_);
783: }
784:
785: sub end_parameter {
786: return &end_responseparam(@_);
787: }
788:
789: sub reset_params {
790: %Apache::inputtags::params=();
791: }
792:
793: sub setup_params {
794: my ($tag,$safeeval) = @_;
795:
796: if ($env{'request.state'} eq 'construct') { return; }
797: my %paramlist=();
798: foreach my $key (keys(%Apache::lonnet::packagetab)) {
799: if ($key =~ /^\Q$tag\E/) {
800: my ($package,$name) = split(/&/,$key);
801: $paramlist{$name}=1;
802: }
803: }
804: foreach my $key (keys(%paramlist)) {
805: my $entry= 'resource.'.$Apache::inputtags::part;
806: if (defined($Apache::inputtags::response[-1])) {
807: $entry.='_'.$Apache::inputtags::response[-1];
808: }
809: $entry.='.'.$key;
810: &Apache::lonxml::debug("looking for $entry");
811: my $value = &Apache::lonnet::EXT("$entry");
812: &Apache::lonxml::debug("$key has value :$value:");
813: if ($value eq 'con_lost' || $value =~ /^error:/) {
814: &Apache::lonxml::debug("using nothing");
815: $Apache::inputtags::params{$key}='';
816: } else {
817: my $string="{return qq\0".$value."\0}";
818: my $newvalue=&Apache::run::run($string,$safeeval,1);
819: if (defined($newvalue)) { $value=$newvalue; }
820: $Apache::inputtags::params{$key}=$value;
821: }
822: }
823: }
824:
825: {
826: my @answer_bits;
827: my $need_row_start;
828:
829: sub answer_header {
830: my ($type,$increment,$rows) = @_;
831: my $result;
832: if ($env{'form.answer_output_mode'} eq 'tex') {
833: undef(@answer_bits);
834: my $bit;
835: if ($Apache::lonhomework::type eq 'exam') {
836: $bit = ($Apache::lonxml::counter+$increment).') ';
837: } else {
838: $bit .= ' Answer for Part: \verb|'.
839: $Apache::inputtags::part.'| ';
840: }
841: push(@answer_bits,$bit);
842: } else {
843: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
844: $result = '<table border="1"><tr>';
845: if ($Apache::lonhomework::type eq 'exam') {
846: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
847: } else {
848: $result .= $td.&mt('Answer for Part: [_1]',
849: $Apache::inputtags::part).'</td>';
850: }
851: $result .= "\n";
852: $need_row_start = 0;
853: }
854: return $result;
855: }
856:
857: sub next_answer {
858: my ($type) = @_;
859: my $result;
860: if ($env{'form.answer_output_mode'} eq 'tex') {
861: # FIXME ... need to do something with tex mode
862: } else {
863: $result .= "</tr>";
864: $need_row_start = 1;
865: }
866: return $result;
867: }
868:
869: sub answer_part {
870: my ($type,$answer,$args) = @_;
871: my $result;
872: if ($env{'form.answer_output_mode'} eq 'tex') {
873: if (!$args->{'no_verbatim'}) {
874: my $to_use='|';
875: foreach my $value (32..126) {
876: my $char=pack('c',$value);
877: if ($answer !~ /\Q$char\E/) {
878: $to_use=$char;
879: last;
880: }
881: }
882: my $fullanswer=$answer;
883: $answer='';
884: foreach my $element (split(/[\;]/,$fullanswer)) {
885: if ($element ne '') {
886: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
887: }
888: }
889: }
890: if ($answer ne '') {
891: push(@answer_bits,$answer);
892: }
893: } else {
894: if ($need_row_start) {
895: $result .= '<tr>';
896: $need_row_start = 0;
897: }
898: $result .= '<td>'.$answer.'</td>';
899: }
900: return $result;
901: }
902:
903: sub answer_footer {
904: my ($type) = @_;
905: my $result;
906: if ($env{'form.answer_output_mode'} eq 'tex') {
907: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
908: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
909: for (my $i=1;$i<=$#answer_bits;$i++) {
910: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
911: }
912: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
913: } else {
914: if (!$need_row_start) {
915: $result .= '</tr>';
916: }
917: $result .= '</table>';
918: }
919: return $result;
920: }
921:
922: }
923:
924: sub showallfoils {
925: if (defined($env{'form.showallfoils'})) {
926: my ($symb)=&Apache::lonnet::whichuser();
927: if (($env{'request.state'} eq 'construct') ||
928: ($env{'user.adv'} && $symb eq '') ||
929: ($Apache::lonhomework::viewgrades) ) {
930: return 1;
931: }
932: }
933: if ($Apache::lonhomework::type eq 'survey') { return 1; }
934: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
935: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
936: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
937:
938: return 0;
939: }
940:
941: =pod
942:
943: =item &getresponse();
944:
945: Retreives the current submitted response, helps out in the case of
946: scantron mode.
947:
948: Returns either the exact text of the submission, or a bubbled response
949: converted to something usable.
950:
951: Optional Arguments:
952: $offset - (defaults to 1) if a problem has more than one bubble
953: response, pass in the number of the bubble wanted, (the
954: first bubble associated with a problem has an offset of 1,
955: the second bubble is 2
956:
957: $resulttype - undef -> a number between 0 and 25
958: 'A is 1' -> a number between 1 and 26
959: 'letter' -> a letter between 'A' and 'Z'
960: $lines - undef problem only needs a single line of bubbles.
961: nonzero Problem wants the first nonempty response in
962: $lines lines of bubbles.
963: $bubbles_per_line - Must be provided if lines is defined.. number of
964: bubbles on a line.
965:
966: =cut
967:
968: sub getresponse {
969: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
970: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
971: my $response;
972: if (!defined($offset)) {
973: $offset=1;
974: } else {
975: $formparm.=":$offset";
976: }
977: if (!defined($lines)) {
978: $lines = 1;
979: }
980: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
981: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
982: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
983: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
984: if ($env{'form.submitted'} eq 'scantron') {
985: my $part = $Apache::inputtags::part;
986: my $id = $Apache::inputtags::response[-1];
987:
988: my $line;
989: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
990: if (!$startline) {
991: $startline = $Apache::lonxml::counter;
992: }
993: for ($line = 0; $line < $lines; $line++) {
994: my $theline = $startline+$offset-1+$line;
995: $response = $env{"scantron.$theline.answer"};
996: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
997: last;
998: }
999:
1000: }
1001:
1002: # save bubbled letter for later
1003: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1004: $response;
1005: if ($resulttype ne 'letter') {
1006: if ($resulttype eq 'A is 1') {
1007: $response = $let_to_num{$response}+1;
1008: } else {
1009: $response = $let_to_num{$response};
1010: }
1011: if ($response ne "") {
1012: $response += $line * $bubbles_per_line;
1013: }
1014: } else {
1015: if ($response ne "") {
1016: $response = chr(ord($response) + $line * $bubbles_per_line);
1017: }
1018: }
1019:
1020: } else {
1021: $response = $env{$formparm};
1022: }
1023: #
1024: # If we have a nonempty answer, correct the numeric value
1025: # of the answer for the line on which it was found.
1026: #
1027:
1028: return $response;
1029: }
1030:
1031: =pod
1032:
1033: =item &repetition();
1034:
1035: Returns the number of lines that are required to encode the weight.
1036: (Currently expects that there are 10 bubbles per line)
1037:
1038: =cut
1039:
1040: sub repetition {
1041: my $id = $Apache::inputtags::part;
1042: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1043: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1044: my $repetition = int($weight/10);
1045: if ($weight % 10 != 0) { $repetition++; }
1046: return $repetition;
1047: }
1048:
1049: =pod
1050:
1051: =item &scored_response();
1052:
1053: Sets the results hash elements
1054:
1055: resource.$part_id.$response_id.awarded - to the floating point
1056: number between 0 and 1 that was awarded on the bubbled input
1057:
1058: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1059:
1060: Returns
1061:
1062: the number of bubble sheet lines that were used (and likely need to
1063: be passed to &Apache::lonxml::increment_counter()
1064:
1065: Arguments
1066:
1067: $part_id - id of the part to grade
1068: $response_id - id of the response to grade
1069:
1070:
1071: =cut
1072:
1073: sub scored_response {
1074: my ($part,$id)=@_;
1075: my $repetition=&repetition();
1076: my $score=0;
1077: for (my $i=0;$i<$repetition;$i++) {
1078: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1079: my $increase=&Apache::response::getresponse($i+1);
1080: if ($increase ne '') { $score+=$increase+1; }
1081: }
1082: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1083: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1084: my $pcr=$score/$weight;
1085: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1086: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1087: 'ASSIGNED_SCORE';
1088: return $repetition;
1089: }
1090:
1091: sub whichorder {
1092: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1093: #&Apache::lonxml::debug("man $max randomize $randomize");
1094: if (!defined(@{ $$hash{'names'} })) { return; }
1095: my @names = @{ $$hash{'names'} };
1096: my @whichopt =();
1097: my (%top,@toplist,%bottom,@bottomlist);
1098: if (!($showall || ($randomize eq 'no'))) {
1099: my $current=0;
1100: foreach my $name (@names) {
1101: $current++;
1102: if ($$hash{"$name.location"} eq 'top') {
1103: $top{$name}=$current;
1104: } elsif ($$hash{"$name.location"} eq 'bottom') {
1105: $bottom{$name}=$current;
1106: }
1107: }
1108: }
1109: my $topcount=0;
1110: my $bottomcount=0;
1111: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1112: && ($#names > -1)) {
1113: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1114: my $aopt;
1115: if ($showall || ($randomize eq 'no')) {
1116: $aopt=0;
1117: } else {
1118: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1119: }
1120: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1121: $aopt=splice(@names,$aopt,1);
1122: #&Apache::lonxml::debug("Picked $aopt");
1123: if ($top{$aopt}) {
1124: $toplist[$top{$aopt}]=$aopt;
1125: $topcount++;
1126: } elsif ($bottom{$aopt}) {
1127: $bottomlist[$bottom{$aopt}]=$aopt;
1128: $bottomcount++;
1129: } else {
1130: push (@whichopt,$aopt);
1131: }
1132: }
1133: for (my $i=0;$i<=$#toplist;$i++) {
1134: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1135: }
1136: for (my $i=0;$i<=$#bottomlist;$i++) {
1137: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1138: }
1139: return @whichopt;
1140: }
1141:
1142: sub show_answer {
1143: my $part = $Apache::inputtags::part;
1144: my $award = $Apache::lonhomework::history{"resource.$part.awarded"};
1145: my $status = $Apache::inputtags::status[-1];
1146: return ( ($award ==1
1147: && &Apache::lonhomework::show_problem_status())
1148: || $status eq "SHOW_ANSWER");
1149: }
1150:
1151: sub analyze_store_foilgroup {
1152: my ($shown,$attrs)=@_;
1153: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1154: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1155: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1156: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1157: foreach my $attr (@$attrs) {
1158: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1159: $Apache::response::foilgroup{"$name.".$attr};
1160: }
1161: }
1162: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1163: }
1164:
1165: sub check_if_computed {
1166: my ($token,$parstack,$safeeval,$name)=@_;
1167: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1168: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1169: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1170: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1171: }
1172: }
1173:
1174: sub pick_foil_for_concept {
1175: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1176: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1177: my @names = @{ $Apache::response::conceptgroup{'names'} };
1178: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1179: my $name=$names[$pick];
1180: push @{ $Apache::response::foilgroup{'names'} }, $name;
1181: foreach my $attr (@$attrs) {
1182: $Apache::response::foilgroup{"$name.".$attr} =
1183: $Apache::response::conceptgroup{"$name.".$attr};
1184: }
1185: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1186: $Apache::response::foilgroup{"$name.concept"} = $concept;
1187: &Apache::lonxml::debug("Selecting $name in $concept");
1188: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1189: if ($target eq 'analyze') {
1190: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1191: $concept);
1192: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1193: $Apache::response::conceptgroup{'names'};
1194: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1195: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1196: $name);
1197: foreach my $attr (@$attrs) {
1198: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1199: $Apache::response::conceptgroup{"$name.$attr"};
1200: }
1201: }
1202: }
1203: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1204: $hinthash->{"$part_id.concept.$concept"}=
1205: $Apache::response::conceptgroup{'names'};
1206:
1207: }
1208:
1209: =pod
1210:
1211: =item get_response_param()
1212:
1213: Get a parameter associated with a problem.
1214: Parameters:
1215: $id - the id of the paramater, either a part id,
1216: or a partid and responspe id joined by _
1217: $name - Name of the parameter to fetch
1218: $default - Default value for the paramter.
1219:
1220: =cut
1221:
1222: sub get_response_param {
1223: my ($id,$name,$default)=@_;
1224: my $parameter;
1225: if ($env{'request.state'} eq 'construct' &&
1226: defined($Apache::inputtags::params{$name})) {
1227: $parameter=$Apache::inputtags::params{$name};
1228: } else {
1229: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1230: }
1231: if (!defined($parameter) || $parameter eq '') {
1232: $parameter = $default;
1233: }
1234: return $parameter;
1235: }
1236:
1237: sub submitted {
1238: my ($who)=@_;
1239:
1240: # when scatron grading any submission is a submission
1241: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1242: # if the caller only cared if this was a scantron submission
1243: if ($who eq 'scantron') { return 0; }
1244: # if the Submit Answer button for this particular part was pressed
1245: my $partid=$Apache::inputtags::part;
1246: if ($env{'form.submitted'} eq "part_$partid") {
1247: return 1;
1248: }
1249: if ($env{'form.submitted'} eq "yes"
1250: && defined($env{'form.submit_'.$partid})) {
1251: return 1;
1252: }
1253: # Submit All button on a .page was pressed
1254: if (defined($env{'form.all_submit'})) { return 1; }
1255: # otherwise no submission occurred
1256: return 0;
1257: }
1258:
1259: sub add_to_gradingqueue {
1260: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1261: if ( $courseid eq ''
1262: || $symb eq ''
1263: || $env{'request.state'} eq 'construct'
1264: || $Apache::lonhomework::type ne 'problem') {
1265: return;
1266: }
1267:
1268: my %queue_info = ( 'type' => 'problem',
1269: 'time' => time);
1270:
1271: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1272: $queue_info{'slot'}=
1273: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1274: }
1275:
1276: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1277: if ($result ne 'ok') {
1278: &Apache::lonxml::error("add_to_queue said $result");
1279: }
1280: }
1281:
1282: =pod
1283:
1284: =item check_status()
1285:
1286: basically undef and 0 (both false) mean that they still have work to do
1287: and all true values mean that they can't do any more work
1288:
1289: a return of undef means it is unattempted
1290: a return of 0 means it is attmpted and wrong but still has tries
1291: a return of 1 means it is marked correct
1292: a return of 2 means they have exceed maximum number of tries
1293: a return of 3 means it after the answer date
1294:
1295: =cut
1296:
1297: sub check_status {
1298: my ($id)=@_;
1299: if (!defined($id)) { $id=$Apache::inputtags::part; }
1300: my $curtime=&Apache::lonnet::EXT('system.time');
1301: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1302: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1303: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1304: if ( $opendate && $curtime > $opendate &&
1305: $duedate && $curtime > $duedate &&
1306: $answerdate && $curtime > $answerdate) {
1307: return 3;
1308: }
1309: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1310: if ($status =~ /^correct/) { return 1; }
1311: if (!$status) { return undef; }
1312: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1313: if ($maxtries eq '') { $maxtries=2; }
1314: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1315: if ($curtries < $maxtries) { return 0; }
1316: return 2;
1317: }
1318:
1319: =pod
1320:
1321: =item setup_prior_tries_hash()
1322:
1323: Foreach each past .submission $func is called with 3 arguments
1324: - the mode to set things up for (currently always 'grade')
1325: - the stored .submission string
1326: - The expansion of $data
1327:
1328: $data is an array ref containing elements that are either
1329: - scalars that are other elements of the history hash to pass to $func
1330: - ref to data to be passed untouched to $func
1331:
1332: $questiontype is the questiontype (currently only passed in if
1333: randomizebytry.
1334:
1335: =cut
1336:
1337: sub setup_prior_tries_hash {
1338: my ($func,$data,$questiontype) = @_;
1339: my $part = $Apache::inputtags::part;
1340: my $id = $Apache::inputtags::response[-1];
1341: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1342: my $partprefix = "$i:resource.$part";
1343: my $sub_key = "$partprefix.$id.submission";
1344: next if (!exists($Apache::lonhomework::history{$sub_key}));
1345: my $type_key = "$partprefix.type";
1346: my $type = $Apache::lonhomework::history{$type_key};
1347: my @other_data;
1348: if (ref($data) eq 'ARRAY') {
1349: foreach my $datum (@{ $data }) {
1350: if (ref($datum)) {
1351: push(@other_data,$datum);
1352: } else {
1353: my $info_key = "$i:resource.$part.$id.$datum";
1354: push(@other_data,$Apache::lonhomework::history{$info_key});
1355: }
1356: }
1357: }
1358: if ($questiontype eq 'randomizetry') {
1359: my $order_key = "$partprefix.$id.foilorder";
1360: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1361: if (@whichopts > 0) {
1362: shift(@other_data);
1363: unshift(@other_data,\@whichopts);
1364: }
1365: }
1366: my $output =
1367: &$func('grade',
1368: $Apache::lonhomework::history{$sub_key},
1369: \@other_data);
1370: if (defined($output)) {
1371: $Apache::inputtags::submission_display{$sub_key} = $output;
1372: }
1373: }
1374: }
1375:
1376: 1;
1377: __END__
1378:
1379: =pod
1380:
1381: =cut
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