1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.229 2011/11/29 17:43:30 raeburn Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: =pod
30:
31: =head1 NAME
32:
33: Apache::response.pm
34:
35: =head1 SYNOPSIS
36:
37: This is part of the LearningOnline Network with CAPA project
38: described at http://www.lon-capa.org.
39:
40:
41: =head1 NOTABLE SUBROUTINES
42:
43: =over
44:
45: =item
46:
47: =back
48:
49: =cut
50:
51:
52: package Apache::response;
53: use strict;
54: use Apache::lonlocal;
55: use Apache::lonnet;
56: use Apache::inputtags();
57: use Apache::lonmaxima();
58: use Apache::lonr();
59:
60: BEGIN {
61: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
62: }
63:
64: sub start_response {
65: my ($parstack,$safeeval)=@_;
66: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
67: if ($#Apache::inputtags::import > -1) {
68: &Apache::lonxml::debug("Turning :$id: into");
69: $id = join('_',@Apache::inputtags::import).'_'.$id;
70: &Apache::lonxml::debug("New :$id:");
71: }
72: push (@Apache::inputtags::response,$id);
73: push (@Apache::inputtags::responselist,$id);
74: @Apache::inputtags::inputlist=();
75: if ($Apache::inputtags::part eq '' &&
76: !$Apache::lonhomework::ignore_response_errors) {
77: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
78: }
79: if ($Apache::inputtags::response_with_no_part &&
80: $Apache::inputtags::part ne '0') {
81: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
82: }
83: if ($Apache::inputtags::part eq '0') {
84: $Apache::inputtags::response_with_no_part=1;
85: }
86: return $id;
87: }
88:
89: sub end_response {
90: #pop @Apache::inputtags::response;
91: @Apache::inputtags::inputlist=();
92: return '';
93: }
94:
95: sub start_hintresponse {
96: my ($parstack,$safeeval)=@_;
97: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
98: push (@Apache::inputtags::hint,$id);
99: push (@Apache::inputtags::hintlist,$id);
100: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
101: return $id;
102: }
103:
104: sub end_hintresponse {
105: pop @Apache::inputtags::hint;
106: if (defined($Apache::inputtags::paramstack[-1])) {
107: %Apache::inputtags::params=
108: @{ pop(@Apache::inputtags::paramstack) };
109: }
110: return '';
111: }
112:
113: my @randomseeds;
114: sub pushrandomnumber {
115: my $rand_alg=&Apache::lonnet::get_rand_alg();
116: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
117: $rand_alg eq '64bit2') {
118: # do nothing
119: } else {
120: my @seed=&Math::Random::random_get_seed();
121: push(@randomseeds,\@seed);
122: }
123: &Apache::response::setrandomnumber(@_);
124: }
125: sub poprandomnumber {
126: my $rand_alg=&Apache::lonnet::get_rand_alg();
127: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
128: $rand_alg eq '64bit2') {
129: return;
130: }
131: my $seed=pop(@randomseeds);
132: if ($seed) {
133: &Math::Random::random_set_seed(@$seed);
134: } else {
135: &Apache::lonxml::error("Unable to restore random algorithm.");
136: }
137: }
138:
139: sub setrandomnumber {
140: my ($ignore_id2,$target,$rndseed) = @_;
141: if (!defined($rndseed)) {
142: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target);
143: }
144: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
145: &Apache::lonxml::debug("randseed $rndseed");
146: # $rndseed=unpack("%32i",$rndseed);
147: my $rand_alg=&Apache::lonnet::get_rand_alg();
148: my ($rndmod,$rndmod2);
149:
150: my ($id1,$id2,$shift_amt);
151: if ($Apache::lonhomework::parsing_a_problem) {
152: $id1=$Apache::inputtags::part;
153: if (defined($Apache::inputtags::response[-1])) {
154: $id2=$Apache::inputtags::response[-1];
155: }
156: $shift_amt=scalar(@Apache::inputtags::responselist);
157: } elsif ($Apache::lonhomework::parsing_a_task) {
158: $id1=&Apache::bridgetask::get_dim_id();
159: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
160: $id2=$Apache::bridgetask::instance{$id1}[-1];
161: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
162: } else {
163: $shift_amt=0;
164: }
165: }
166: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
167: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
168: $rand_alg eq '64bit2') {
169: $rndmod=(&Apache::lonnet::numval($id1) << 10);
170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
171: } elsif ($rand_alg eq '64bit3') {
172: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
173: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
174: } elsif ($rand_alg eq '64bit4') {
175: my $shift=(4*$shift_amt)%30;
176: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
177: if (defined($id2)) {
178: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
179: }
180: } else {
181: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
182: }
183: $Apache::lonhomework::results{'resource.'.$id1.'.rawrndseed'}=$rndseed;
184: if ($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: $Apache::lonhomework::results{'resource.'.$id1.'.rndseed'}=$rndseed;
201: &Apache::lonnet::setup_random_from_rndseed($rndseed);
202: return '';
203: }
204:
205: sub meta_parameter_write {
206: my ($name,$type,$default,$display)=@_;
207: my $partref=$Apache::inputtags::part;
208: my $result='<parameter part="'.$Apache::inputtags::part.'"';
209: if (defined($Apache::inputtags::response[-1])) {
210: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
211: $partref.='_'.$Apache::inputtags::response[-1];
212: }
213: $result.= ' name="'.$name.'"'.
214: ' type="'.$type.'"'.
215: (defined($default)?' default="'.$default.'"':'').
216: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
217: .'></parameter>'
218: ."\n";
219: return $result;
220: }
221:
222: sub meta_package_write {
223: my $name=shift;
224: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
225: if(defined($Apache::inputtags::response[-1])) {
226: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
227: }
228: $result.=' package="'.$name.'"></parameter>'."\n";
229: return $result;
230: }
231:
232: sub meta_stores_write {
233: my ($name,$type,$display)=@_;
234: my $partref=$Apache::inputtags::part;
235: my $result = '<stores part="'.$Apache::inputtags::part.'"';
236: if (defined($Apache::inputtags::response[-1])) {
237: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
238: $partref.='_'.$Apache::inputtags::response[-1];
239: }
240: $result.= ' name="'.$name.'"'.
241: ' type="'.$type.'"'.
242: ' display="'.$display.' [Part: '.$partref.']"'.
243: "></stores>\n";
244: }
245:
246: =pod
247:
248: =item mandatory_part_meta()
249:
250: Autogenerate metadata for mandatory
251: input (from RAT or lonparmset) and
252: output (to lonspreadsheet)
253: of each part
254:
255: Note: responseid-specific data 'submission' and 'awarddetail'
256: not available to spreadsheet -> skip here
257:
258: =cut
259:
260:
261: sub mandatory_part_meta {
262: return &meta_package_write('part').
263: &meta_stores_write('solved','string','Problem Status').
264: &meta_stores_write('tries','int_zeropos','Number of Attempts').
265: &meta_stores_write('awarded','float','Partial Credit Factor');
266: }
267:
268: sub meta_part_order {
269: if (@Apache::inputtags::partlist) {
270: my @parts=@Apache::inputtags::partlist;
271: shift(@parts);
272: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
273: } else {
274: return '<partorder>0</partorder>'."\n";
275: }
276: }
277:
278: sub meta_response_order {
279: if (@Apache::inputtags::responselist) {
280: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
281: '</responseorder>'."\n";
282: }
283: }
284:
285: sub check_for_previous {
286: my ($curresponse,$partid,$id,$last,$type) = @_;
287: my %previous;
288: $previous{'used'} = 0;
289: my $questiontype = $Apache::lonhomework::type;
290: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
291: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
292: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
293: if ( $last && $key =~ /^(\d+):/ ) {
294: next if ($1 >= $last);
295: }
296: &Apache::lonxml::debug("Trying $key");
297: my $pastresponse=$Apache::lonhomework::history{$key};
298: if ($pastresponse eq $curresponse) {
299: my $history;
300: if ( $key =~ /^(\d+):/ ) {
301: $history=$1;
302: next if ((($questiontype eq 'randomizetry') ||
303: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
304: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
305: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
306: $previous{'last'}='0';
307: push(@{ $previous{'version'} },$history);
308: } else {
309: next if ((($questiontype eq 'randomizetry') ||
310: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
311: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
312: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
313: $previous{'last'}='1';
314: }
315: $previous{'used'} = 1;
316: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
317: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
318: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
319: } elsif ($type eq 'ci') {
320: if (lc($pastresponse) eq lc($curresponse)) {
321: if ($key =~ /^(\d+):/) {
322: my $history = $1;
323: next if (($questiontype eq 'randomizetry') &&
324: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
325: push (@{$previous{'versionci'}},$history);
326: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
327: $previous{'usedci'} = 1;
328: }
329: }
330: }
331: }
332: }
333: &Apache::lonhomework::showhash(%previous);
334: return %previous;
335: }
336:
337: sub handle_previous {
338: my ($previous,$ad)=@_;
339: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
340: if ($$previous{'last'}) {
341: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
342: push(@Apache::inputtags::previous_version,$$previous{'version'});
343: } elsif (($Apache::lonhomework::type ne 'survey') &&
344: ($Apache::lonhomework::type ne 'surveycred') &&
345: ($Apache::lonhomework::type ne 'anonsurvey') &&
346: ($Apache::lonhomework::type ne 'anonsurveycred')) {
347: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
348: push(@Apache::inputtags::previous_version,$$previous{'version'});
349: }
350: }
351: }
352:
353: sub view_or_modify {
354: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
355: my $myself=0;
356: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
357: $myself=1;
358: }
359: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
360: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
361: if ($mgr) { return "M"; }
362: if ($vgr) { return "V"; }
363: if ($myself) { return "V"; }
364: return '';
365: }
366:
367: sub start_dataresponse {
368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
369: my $id = &Apache::response::start_response($parstack,$safeeval);
370: my $result;
371: if ($target eq 'web') {
372: $result = $token->[2]->{'display'}.':';
373: } elsif ($target eq 'meta') {
374: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
375: $token->[2]->{'type'},
376: $token->[2]->{'display'});
377: $result .= &Apache::response::meta_package_write('dataresponse');
378: }
379: return $result;
380: }
381:
382: sub end_dataresponse {
383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
384: my $result;
385: if ( $target eq 'web' ) {
386: } elsif ($target eq 'grade' ) {
387: if ( defined $env{'form.submitted'}) {
388: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
389: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
390: if ($allowed) {
391: &Apache::response::setup_params('dataresponse',$safeeval);
392: my $partid = $Apache::inputtags::part;
393: my $id = $Apache::inputtags::response['-1'];
394: my $response = $env{'form.HWVAL_'.$id};
395: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
396: if ( $response =~ /[^\s]/) {
397: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
398: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
399: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
400: }
401: } else {
402: $result='Not Permitted to change values.'
403: }
404: }
405: }
406: &Apache::response::end_response;
407: return $result;
408: }
409:
410: sub start_customresponse {
411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
412: my $id = &Apache::response::start_response($parstack,$safeeval);
413: push(@Apache::lonxml::namespace,'customresponse');
414: my $result;
415: @Apache::response::custom_answer=();
416: @Apache::response::custom_answer_type=();
417: &Apache::lonxml::register('Apache::response',('answer'));
418: if ($target eq 'web') {
419: if ( &Apache::response::show_answer() ) {
420: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
421: $safeeval);
422: $Apache::inputtags::answertxt{$id}=[$answer];
423: }
424: } elsif ($target eq 'edit') {
425: $result.=&Apache::edit::tag_start($target,$token);
426: $result.=&Apache::edit::text_arg('String to display for answer:',
427: 'answerdisplay',$token,'50');
428: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
429: } elsif ($target eq 'modified') {
430: my $constructtag;
431: $constructtag=&Apache::edit::get_new_args($token,$parstack,
432: $safeeval,'answerdisplay');
433: if ($constructtag) {
434: $result = &Apache::edit::rebuild_tag($token);
435: }
436: } elsif ($target eq 'answer' || $target eq 'grade') {
437: &Apache::response::reset_params();
438: } elsif ($target eq 'meta') {
439: $result .= &Apache::response::meta_package_write('customresponse');
440: }
441: return $result;
442: }
443:
444: sub end_customresponse {
445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
446: my $result;
447: my $part=$Apache::inputtags::part;
448: my $id=$Apache::inputtags::response[-1];
449: if ( $target eq 'grade' && &Apache::response::submitted() ) {
450: my $response = &Apache::response::getresponse();
451: if ($Apache::lonhomework::type eq 'exam' ||
452: &Apache::response::submitted('scantron')) {
453: &Apache::response::scored_response($part,$id);
454: } elsif ( $response =~ /[^\s]/ &&
455: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
456: if (!$Apache::lonxml::default_homework_loaded) {
457: &Apache::lonxml::default_homework_load($safeeval);
458: }
459: my %previous = &Apache::response::check_for_previous($response,
460: $part,$id);
461: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
462: $response;
463: my $error;
464: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
465: $response;
466:
467: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
468: if (!&Apache::inputtags::valid_award($award)) {
469: $error = $award;
470: $award = 'ERROR';
471: }
472: &Apache::response::handle_previous(\%previous,$award);
473: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
474: $award;
475: if ($award eq 'ASSIGNED_SCORE') {
476: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
477: }
478: if ($error) {
479: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
480: $error;
481: }
482: }
483: } elsif ( $target eq 'answer') {
484: $result = &Apache::response::answer_header('customresponse');
485: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
486: $safeeval);
487: if ($env{'form.answer_output_mode'} ne 'tex') {
488: $answer = '<b>'.$answer.'</b>';
489: }
490: $result .= &Apache::response::answer_part('customresponse',$answer);
491: $result .= &Apache::response::answer_footer('customresponse');
492: }
493: if ($target eq 'web') {
494: &setup_prior_tries_hash(\&format_prior_response_custom);
495: }
496: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
497: $target eq 'tex' || $target eq 'analyze') {
498: my $repetition = &repetition();
499: &Apache::lonxml::increment_counter($repetition,"$part.$id");
500: if ($target eq 'analyze') {
501: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
502: &Apache::lonhomework::set_bubble_lines();
503: }
504: }
505: pop(@Apache::lonxml::namespace);
506: pop(@Apache::response::custom_answer);
507: pop(@Apache::response::custom_answer_type);
508: &Apache::lonxml::deregister('Apache::response',('answer'));
509: &Apache::response::end_response();
510: return $result;
511: }
512:
513: sub format_prior_response_custom {
514: my ($mode,$answer) =@_;
515: if (ref($answer) eq 'ARRAY') {
516: $answer = '('.join(', ', @{ $answer }).')';
517: }
518: return '<span class="LC_prior_custom">'.
519: &HTML::Entities::encode($answer,'"<>&').'</span>';
520: }
521:
522: sub start_mathresponse {
523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
524: my $id = &Apache::response::start_response($parstack,$safeeval);
525: push(@Apache::lonxml::namespace,'mathresponse');
526: my $result;
527: @Apache::response::custom_answer=();
528: @Apache::response::custom_answer_type=();
529: &Apache::lonxml::register('Apache::response',('answer'));
530: if ($target eq 'web') {
531: if ( &Apache::response::show_answer() ) {
532: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
533: $safeeval);
534: $Apache::inputtags::answertxt{$id}=[$answer];
535: }
536:
537: } elsif ($target eq 'edit') {
538: $result.=&Apache::edit::tag_start($target,$token);
539: $result.=&Apache::edit::text_arg('String to display for answer:',
540: 'answerdisplay',$token,'50');
541: $result.=&Apache::edit::select_arg('Algebra System:',
542: 'cas',
543: ['maxima','R'],
544: $token);
545: $result.=&Apache::edit::text_arg('Argument Array:',
546: 'args',$token).
547: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
548: $result.=&Apache::edit::text_arg('Libraries:',
549: 'libraries',$token).
550: &Apache::loncommon::help_open_topic('Maxima_Libraries');
551: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
552: } elsif ($target eq 'modified') {
553: my $constructtag;
554: $constructtag=&Apache::edit::get_new_args($token,$parstack,
555: $safeeval,'answerdisplay','cas','args','libraries');
556: if ($constructtag) {
557: $result = &Apache::edit::rebuild_tag($token);
558: }
559: } elsif ($target eq 'answer' || $target eq 'grade') {
560: &Apache::response::reset_params();
561: } elsif ($target eq 'meta') {
562: $result .= &Apache::response::meta_package_write('mathresponse');
563: }
564: return $result;
565: }
566:
567: sub edit_mathresponse_button {
568: my ($id,$field)=@_;
569: my $button=&mt('Edit Answer');
570: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
571: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
572: return(<<ENDFORMULABUTTON);
573: <script type="text/javascript" language="JavaScript">
574: function edit_${id}_${field} (textarea) {
575: thenumber = textarea;
576: thedata = document.forms['lonhomework'].elements[textarea].value;
577: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
578: }
579: </script>
580: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
581: ENDFORMULABUTTON
582: }
583:
584: sub end_mathresponse {
585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
586: my $result;
587: my $part=$Apache::inputtags::part;
588: my $id=$Apache::inputtags::response[-1];
589: if ( $target eq 'grade' && &Apache::response::submitted() ) {
590: my $response = &Apache::response::getresponse();
591: if ( $response =~ /[^\s]/ ) {
592: if (!$Apache::lonxml::default_homework_loaded) {
593: &Apache::lonxml::default_homework_load($safeeval);
594: }
595: my %previous = &Apache::response::check_for_previous($response,
596: $part,$id);
597: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
598: $response;
599: my $error;
600: my $award;
601: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
602: if ($cas eq 'maxima') {
603: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
604: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
605: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
606: }
607: if ($cas eq 'R') {
608: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
609: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
610: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
611: }
612:
613: if (!&Apache::inputtags::valid_award($award)) {
614: $error = $award;
615: $award = 'ERROR';
616: }
617: &Apache::response::handle_previous(\%previous,$award);
618: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
619: $award;
620: if ($error) {
621: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
622: $error;
623: }
624: }
625: }
626: if ($target eq 'web') {
627: &setup_prior_tries_hash(\&format_prior_response_math);
628: my $partid = $Apache::inputtags::part;
629: my $id = $Apache::inputtags::response[-1];
630: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
631: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
632: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
633: }
634: }
635:
636: pop(@Apache::lonxml::namespace);
637: pop(@Apache::response::custom_answer);
638: pop(@Apache::response::custom_answer_type);
639: &Apache::lonxml::deregister('Apache::response',('answer'));
640: &Apache::response::end_response();
641: return $result;
642: }
643:
644: sub format_prior_response_math {
645: my ($mode,$answer) =@_;
646: return '<span class="LC_prior_math">'.
647: &HTML::Entities::encode($answer,'"<>&').'</span>';
648: }
649:
650: sub implicit_multiplication {
651: my ($expression)=@_;
652: # Escape scientific notation, so 3e8 does not become 3*e*8
653: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
654: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
655: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
656: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
657: # Fill in multiplication signs
658: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
659: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
660: # )( -> )*(; ) ( -> )*(
661: $expression=~s/\)\s*\(/\)\*\(/gs;
662: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
663: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
664: # a ( -> a*(
665: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
666: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
667: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
668: # 3&8 -> 3e8; 3&-4 -> 3e-4
669: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
670: return $expression;
671: }
672:
673: sub start_answer {
674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
675: my $result;
676: push(@Apache::response::custom_answer,
677: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
678: push(@Apache::response::custom_answer_type,
679: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
680: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
681: if ($target eq "edit" ) {
682: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
683: $result.=&Apache::edit::editfield($token->[1],
684: $Apache::response::custom_answer[-1],
685: '',80,4);
686: } elsif ( $target eq "modified" ) {
687: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
688: }
689: return $result;
690: }
691:
692: sub end_answer {
693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
694: if ($target eq 'edit' ) {
695: return &Apache::edit::end_table();
696: }
697: }
698:
699: sub decide_package {
700: my ($tagstack)=@_;
701: my $package;
702: if ($$tagstack[-1] eq 'parameter') {
703: $package='part';
704: } else {
705: my $i=-1;
706: while (defined($$tagstack[$i])) {
707: if ($$tagstack[$i] =~ /(response|hint)$/) {
708: $package=$$tagstack[$i];
709: last;
710: }
711: $i--;
712: }
713: }
714: return $package;
715: }
716:
717: sub start_responseparam {
718: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
719: my $result='';
720: if ($target eq 'meta') {
721: $result = &meta_parameter_write($token->[2]->{'name'},
722: $token->[2]->{'type'},
723: $token->[2]->{'default'},
724: $token->[2]->{'description'});
725: } elsif ($target eq 'edit') {
726: $result.=&Apache::edit::tag_start($target,$token);
727: my $optionlist;
728: my $package=&decide_package($tagstack);
729: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
730: if ($key =~ /^\Q$package\E&(.*)&display$/) {
731: $optionlist.='<option value="'.$1.'">'.
732: $Apache::lonnet::packagetab{$key}.'</option>';
733: }
734: }
735: if (defined($optionlist)) {
736: $result.=&mt('Use template:').' <select name="'.
737: &Apache::edit::html_element_name('parameter_package').'">'.
738: '<option value=""></option>'.$optionlist.'</select><br />';
739: }
740: $result.=&Apache::edit::text_arg('Name:','name',$token).
741: &Apache::edit::text_arg('Type:','type',$token).
742: &Apache::edit::text_arg('Description:','description',$token).
743: &Apache::edit::text_arg('Default:','default',$token).
744: "</td></tr>";
745: $result.=&Apache::edit::end_table;
746: } elsif ($target eq 'modified') {
747: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
748: $safeeval,'name','type',
749: 'description','default');
750: my $element=&Apache::edit::html_element_name('parameter_package');
751: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
752: my $name=$env{"form.$element"};
753: my $tag=&decide_package($tagstack);
754: $token->[2]->{'name'}=$name;
755: $token->[2]->{'type'}=
756: $Apache::lonnet::packagetab{"$tag&$name&type"};
757: $token->[2]->{'description'}=
758: $Apache::lonnet::packagetab{"$tag&$name&display"};
759: $token->[2]->{'default'}=
760: $Apache::lonnet::packagetab{"$tag&$name&default"};
761: $token->[3] = ['name','type','description','default'];
762: $constructtag=1;
763: }
764: if ($constructtag) {
765: $result = &Apache::edit::rebuild_tag($token);
766: }
767: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
768: $target eq 'tex' || $target eq 'analyze' ) {
769: if ($env{'request.state'} eq 'construct') {
770: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
771: my $default=&Apache::lonxml::get_param('default',$parstack,
772: $safeeval);
773: if ($name) {$Apache::inputtags::params{$name}=$default;}
774: }
775: }
776: return $result;
777: }
778:
779: sub end_responseparam {
780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
781: if ($target eq 'edit') { return ('','no'); }
782: return '';
783: }
784:
785: sub start_parameter {
786: return &start_responseparam(@_);
787: }
788:
789: sub end_parameter {
790: return &end_responseparam(@_);
791: }
792:
793: sub reset_params {
794: %Apache::inputtags::params=();
795: }
796:
797: sub setup_params {
798: my ($tag,$safeeval) = @_;
799:
800: if ($env{'request.state'} eq 'construct') { return; }
801: my %paramlist=();
802: foreach my $key (keys(%Apache::lonnet::packagetab)) {
803: if ($key =~ /^\Q$tag\E/) {
804: my ($package,$name) = split(/&/,$key);
805: $paramlist{$name}=1;
806: }
807: }
808: foreach my $key (keys(%paramlist)) {
809: my $entry= 'resource.'.$Apache::inputtags::part;
810: if (defined($Apache::inputtags::response[-1])) {
811: $entry.='_'.$Apache::inputtags::response[-1];
812: }
813: $entry.='.'.$key;
814: &Apache::lonxml::debug("looking for $entry");
815: my $value = &Apache::lonnet::EXT("$entry");
816: &Apache::lonxml::debug("$key has value :$value:");
817: if ($value eq 'con_lost' || $value =~ /^error:/) {
818: &Apache::lonxml::debug("using nothing");
819: $Apache::inputtags::params{$key}='';
820: } else {
821: my $string="{return qq\0".$value."\0}";
822: my $newvalue=&Apache::run::run($string,$safeeval,1);
823: if (defined($newvalue)) { $value=$newvalue; }
824: $Apache::inputtags::params{$key}=$value;
825: }
826: }
827: }
828:
829: {
830: my @answer_bits;
831: my $need_row_start;
832:
833: sub answer_header {
834: my ($type,$increment,$rows) = @_;
835: my $result;
836: if ($env{'form.answer_output_mode'} eq 'tex') {
837: undef(@answer_bits);
838: my $bit;
839: if ($Apache::lonhomework::type eq 'exam') {
840: $bit = ($Apache::lonxml::counter+$increment).') ';
841: } else {
842: $bit .= ' Answer for Part: \verb|'.
843: $Apache::inputtags::part.'| ';
844: }
845: push(@answer_bits,$bit);
846: } else {
847: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
848: $result = '<table border="1"><tr>';
849: if ($Apache::lonhomework::type eq 'exam') {
850: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
851: } else {
852: $result .= $td.&mt('Answer for Part: [_1]',
853: $Apache::inputtags::part).'</td>';
854: }
855: $result .= "\n";
856: $need_row_start = 0;
857: }
858: return $result;
859: }
860:
861: sub next_answer {
862: my ($type) = @_;
863: my $result;
864: if ($env{'form.answer_output_mode'} eq 'tex') {
865: # FIXME ... need to do something with tex mode
866: } else {
867: $result .= "</tr>";
868: $need_row_start = 1;
869: }
870: return $result;
871: }
872:
873: sub answer_part {
874: my ($type,$answer,$args) = @_;
875: my $result;
876: if ($env{'form.answer_output_mode'} eq 'tex') {
877: if (!$args->{'no_verbatim'}) {
878: my $to_use='|';
879: foreach my $value (32..126) {
880: my $char=pack('c',$value);
881: if ($answer !~ /\Q$char\E/) {
882: $to_use=$char;
883: last;
884: }
885: }
886: my $fullanswer=$answer;
887: $answer='';
888: foreach my $element (split(/[\;]/,$fullanswer)) {
889: if ($element ne '') {
890: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
891: }
892: }
893: }
894: if ($answer ne '') {
895: push(@answer_bits,$answer);
896: }
897: } else {
898: if ($need_row_start) {
899: $result .= '<tr>';
900: $need_row_start = 0;
901: }
902: $result .= '<td>'.$answer.'</td>';
903: }
904: return $result;
905: }
906:
907: sub answer_footer {
908: my ($type) = @_;
909: my $result;
910: if ($env{'form.answer_output_mode'} eq 'tex') {
911: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
912: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
913: for (my $i=1;$i<=$#answer_bits;$i++) {
914: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
915: }
916: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
917: } else {
918: if (!$need_row_start) {
919: $result .= '</tr>';
920: }
921: $result .= '</table>';
922: }
923: return $result;
924: }
925:
926: }
927:
928: sub showallfoils {
929: if (defined($env{'form.showallfoils'})) {
930: my ($symb)=&Apache::lonnet::whichuser();
931: if (($env{'request.state'} eq 'construct') ||
932: ($env{'user.adv'} && $symb eq '') ||
933: ($Apache::lonhomework::viewgrades) ) {
934: return 1;
935: }
936: }
937: if ($Apache::lonhomework::type eq 'survey') { return 1; }
938: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
939: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
940: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
941:
942: return 0;
943: }
944:
945: =pod
946:
947: =item &getresponse();
948:
949: Retreives the current submitted response, helps out in the case of
950: scantron mode.
951:
952: Returns either the exact text of the submission, or a bubbled response
953: converted to something usable.
954:
955: Optional Arguments:
956: $offset - (defaults to 1) if a problem has more than one bubble
957: response, pass in the number of the bubble wanted, (the
958: first bubble associated with a problem has an offset of 1,
959: the second bubble is 2
960:
961: $resulttype - undef -> a number between 0 and 25
962: 'A is 1' -> a number between 1 and 26
963: 'letter' -> a letter between 'A' and 'Z'
964: $lines - undef problem only needs a single line of bubbles.
965: nonzero Problem wants the first nonempty response in
966: $lines lines of bubbles.
967: $bubbles_per_line - Must be provided if lines is defined.. number of
968: bubbles on a line.
969:
970: =cut
971:
972: sub getresponse {
973: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
974: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
975: my $response;
976: if (!defined($offset)) {
977: $offset=1;
978: } else {
979: $formparm.=":$offset";
980: }
981: if (!defined($lines)) {
982: $lines = 1;
983: }
984: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
985: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
986: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
987: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
988: if ($env{'form.submitted'} eq 'scantron') {
989: my $part = $Apache::inputtags::part;
990: my $id = $Apache::inputtags::response[-1];
991:
992: my $line;
993: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
994: if (!$startline) {
995: $startline = $Apache::lonxml::counter;
996: }
997: for ($line = 0; $line < $lines; $line++) {
998: my $theline = $startline+$offset-1+$line;
999: $response = $env{"scantron.$theline.answer"};
1000: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
1001: last;
1002: }
1003:
1004: }
1005:
1006: # save bubbled letter for later
1007: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1008: $response;
1009: if ($resulttype ne 'letter') {
1010: $response = $let_to_num{$response};
1011: if ($resulttype eq 'A is 1') {
1012: if ($response ne "") {
1013: $response = $response+1;
1014: }
1015: }
1016: if ($response ne "") {
1017: $response += $line * $bubbles_per_line;
1018: }
1019: } else {
1020: if ($response ne "") {
1021: my $raw = $response;
1022: $response = chr(ord($response) + $line * $bubbles_per_line);
1023: }
1024: }
1025:
1026: } else {
1027: $response = $env{$formparm};
1028: }
1029: #
1030: # If we have a nonempty answer, correct the numeric value
1031: # of the answer for the line on which it was found.
1032: #
1033:
1034: return $response;
1035: }
1036:
1037: =pod
1038:
1039: =item &repetition();
1040:
1041: In scalar context:
1042:
1043: returns: the number of lines that are required to encode the weight.
1044: (Default is for 10 bubbles per bubblesheet item; other (integer)
1045: values can be specified by using a custom Bubblesheet format file
1046: with an eighteenth entry (BubblesPerRow) set to the integer
1047: appropriate for the bubblesheets which will be used to assign weights.
1048:
1049: In array context:
1050:
1051: returns: number of lines required to encode weight, and bubbles/line.
1052:
1053: =cut
1054:
1055: sub repetition {
1056: my $id = $Apache::inputtags::part;
1057: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1058: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1059: my $bubbles_per_row;
1060: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1061: ($env{'form.bubbles_per_row'} > 0)) {
1062: $bubbles_per_row = $env{'form.bubbles_per_row'};
1063: } else {
1064: $bubbles_per_row = 10;
1065: }
1066: my $denominator = $bubbles_per_row;
1067: if (($env{'form.scantron_lastbubblepoints'} == 0) &&
1068: ($bubbles_per_row > 1)) {
1069: $denominator = $bubbles_per_row - 1;
1070: }
1071: my $repetition = int($weight/$denominator);
1072: if ($weight % $denominator != 0) { $repetition++; }
1073: if (wantarray) {
1074: return ($repetition,$bubbles_per_row);
1075: }
1076: return $repetition;
1077:
1078: }
1079:
1080: =pod
1081:
1082: =item &scored_response();
1083:
1084: Sets the results hash elements
1085:
1086: resource.$part_id.$response_id.awarded - to the floating point
1087: number between 0 and 1 that was awarded on the bubbled input
1088:
1089: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1090:
1091: Returns
1092:
1093: the number of bubble sheet lines that were used (and likely need to
1094: be passed to &Apache::lonxml::increment_counter()
1095:
1096: Arguments
1097:
1098: $part_id - id of the part to grade
1099: $response_id - id of the response to grade
1100:
1101:
1102: =cut
1103:
1104: sub scored_response {
1105: my ($part,$id)=@_;
1106: my $repetition=&repetition();
1107: my $bubbles_per_row;
1108: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1109: ($env{'form.bubbles_per_row'} > 0)) {
1110: $bubbles_per_row = $env{'form.bubbles_per_row'};
1111: } else {
1112: $bubbles_per_row = 10;
1113: }
1114: my $score=0;
1115: for (my $i=0;$i<$repetition;$i++) {
1116: # A is 1, B is 2, etc.
1117: my $increase=&Apache::response::getresponse($i+1);
1118: unless (($increase == $bubbles_per_row-1) &&
1119: ($env{'form.scantron_lastbubblepoints'} == 0)) {
1120: # (get response return 0-9 and then we add 1)
1121: if ($increase ne '') {
1122: $score+=$increase+1;
1123: }
1124: }
1125: }
1126: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1127: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1128: my $pcr=$score/$weight;
1129: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1130: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1131: 'ASSIGNED_SCORE';
1132: return $repetition;
1133: }
1134:
1135: sub whichorder {
1136: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1137: #&Apache::lonxml::debug("man $max randomize $randomize");
1138: if (!defined(@{ $$hash{'names'} })) { return; }
1139: my @names = @{ $$hash{'names'} };
1140: my @whichopt =();
1141: my (%top,@toplist,%bottom,@bottomlist);
1142: if (!($showall || ($randomize eq 'no'))) {
1143: my $current=0;
1144: foreach my $name (@names) {
1145: $current++;
1146: if ($$hash{"$name.location"} eq 'top') {
1147: $top{$name}=$current;
1148: } elsif ($$hash{"$name.location"} eq 'bottom') {
1149: $bottom{$name}=$current;
1150: }
1151: }
1152: }
1153: my $topcount=0;
1154: my $bottomcount=0;
1155: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1156: && ($#names > -1)) {
1157: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1158: my $aopt;
1159: if ($showall || ($randomize eq 'no')) {
1160: $aopt=0;
1161: } else {
1162: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1163: }
1164: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1165: $aopt=splice(@names,$aopt,1);
1166: #&Apache::lonxml::debug("Picked $aopt");
1167: if ($top{$aopt}) {
1168: $toplist[$top{$aopt}]=$aopt;
1169: $topcount++;
1170: } elsif ($bottom{$aopt}) {
1171: $bottomlist[$bottom{$aopt}]=$aopt;
1172: $bottomcount++;
1173: } else {
1174: push (@whichopt,$aopt);
1175: }
1176: }
1177: for (my $i=0;$i<=$#toplist;$i++) {
1178: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1179: }
1180: for (my $i=0;$i<=$#bottomlist;$i++) {
1181: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1182: }
1183: return @whichopt;
1184: }
1185:
1186: sub show_answer {
1187: my $part = $Apache::inputtags::part;
1188: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1189: my $status = $Apache::inputtags::status[-1];
1190: my $canshow = 0;
1191: if ($award =~ /^correct/) {
1192: if ((&Apache::inputtags::grading_is_nonlenient($part)) ||
1193: ($Apache::lonhomework::history{"resource.$part.awarded"} == 1)) {
1194: $canshow = 1;
1195: }
1196: }
1197: return (($canshow && &Apache::lonhomework::show_problem_status())
1198: || $status eq "SHOW_ANSWER");
1199: }
1200:
1201: sub analyze_store_foilgroup {
1202: my ($shown,$attrs)=@_;
1203: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1204: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1205: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1206: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1207: foreach my $attr (@$attrs) {
1208: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1209: $Apache::response::foilgroup{"$name.".$attr};
1210: }
1211: }
1212: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1213: }
1214:
1215: sub check_if_computed {
1216: my ($token,$parstack,$safeeval,$name)=@_;
1217: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1218: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1219: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1220: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1221: }
1222: }
1223:
1224: sub pick_foil_for_concept {
1225: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1226: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1227: my @names = @{ $Apache::response::conceptgroup{'names'} };
1228: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1229: my $name=$names[$pick];
1230: push @{ $Apache::response::foilgroup{'names'} }, $name;
1231: foreach my $attr (@$attrs) {
1232: $Apache::response::foilgroup{"$name.".$attr} =
1233: $Apache::response::conceptgroup{"$name.".$attr};
1234: }
1235: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1236: $Apache::response::foilgroup{"$name.concept"} = $concept;
1237: &Apache::lonxml::debug("Selecting $name in $concept");
1238: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1239: if ($target eq 'analyze') {
1240: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1241: $concept);
1242: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1243: $Apache::response::conceptgroup{'names'};
1244: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1245: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1246: $name);
1247: foreach my $attr (@$attrs) {
1248: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1249: $Apache::response::conceptgroup{"$name.$attr"};
1250: }
1251: }
1252: }
1253: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1254: $hinthash->{"$part_id.concept.$concept"}=
1255: $Apache::response::conceptgroup{'names'};
1256:
1257: }
1258:
1259: =pod
1260:
1261: =item get_response_param()
1262:
1263: Get a parameter associated with a problem.
1264: Parameters:
1265: $id - the id of the paramater, either a part id,
1266: or a partid and responspe id joined by _
1267: $name - Name of the parameter to fetch
1268: $default - Default value for the paramter.
1269:
1270: =cut
1271:
1272: sub get_response_param {
1273: my ($id,$name,$default)=@_;
1274: my $parameter;
1275: if ($env{'request.state'} eq 'construct' &&
1276: defined($Apache::inputtags::params{$name})) {
1277: $parameter=$Apache::inputtags::params{$name};
1278: } else {
1279: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1280: }
1281: if (!defined($parameter) || $parameter eq '') {
1282: $parameter = $default;
1283: }
1284: return $parameter;
1285: }
1286:
1287: sub submitted {
1288: my ($who)=@_;
1289:
1290: # when scatron grading any submission is a submission
1291: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1292: # if the caller only cared if this was a scantron submission
1293: if ($who eq 'scantron') { return 0; }
1294: # if the Submit Answer button for this particular part was pressed
1295: my $partid=$Apache::inputtags::part;
1296: if ($env{'form.submitted'} eq "part_$partid") {
1297: return 1;
1298: }
1299: if ($env{'form.submitted'} eq "yes"
1300: && defined($env{'form.submit_'.$partid})) {
1301: return 1;
1302: }
1303: # Submit All button on a .page was pressed
1304: if (defined($env{'form.all_submit'})) { return 1; }
1305: # otherwise no submission occurred
1306: return 0;
1307: }
1308:
1309: sub add_to_gradingqueue {
1310: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1311: if ( $courseid eq ''
1312: || $symb eq ''
1313: || $env{'request.state'} eq 'construct'
1314: || $Apache::lonhomework::type ne 'problem') {
1315: return;
1316: }
1317:
1318: my %queue_info = ( 'type' => 'problem',
1319: 'time' => time);
1320:
1321: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1322: $queue_info{'slot'}=
1323: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1324: }
1325:
1326: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1327: if ($result ne 'ok') {
1328: &Apache::lonxml::error("add_to_queue said $result");
1329: }
1330: }
1331:
1332: =pod
1333:
1334: =item check_status()
1335:
1336: basically undef and 0 (both false) mean that they still have work to do
1337: and all true values mean that they can't do any more work
1338:
1339: a return of undef means it is unattempted
1340: a return of 0 means it is attmpted and wrong but still has tries
1341: a return of 1 means it is marked correct
1342: a return of 2 means they have exceed maximum number of tries
1343: a return of 3 means it after the answer date
1344:
1345: =cut
1346:
1347: sub check_status {
1348: my ($id)=@_;
1349: if (!defined($id)) { $id=$Apache::inputtags::part; }
1350: my $curtime=&Apache::lonnet::EXT('system.time');
1351: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1352: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1353: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1354: if ( $opendate && $curtime > $opendate &&
1355: $duedate && $curtime > $duedate &&
1356: $answerdate && $curtime > $answerdate) {
1357: return 3;
1358: }
1359: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1360: if ($status =~ /^correct/) { return 1; }
1361: if (!$status) { return undef; }
1362: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1363: if ($maxtries eq '') { $maxtries=2; }
1364: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1365: if ($curtries < $maxtries) { return 0; }
1366: return 2;
1367: }
1368:
1369: =pod
1370:
1371: =item setup_prior_tries_hash()
1372:
1373: Foreach each past .submission $func is called with 3 arguments
1374: - the mode to set things up for (currently always 'grade')
1375: - the stored .submission string
1376: - The expansion of $data
1377:
1378: $data is an array ref containing elements that are either
1379: - scalars that are other elements of the history hash to pass to $func
1380: - ref to data to be passed untouched to $func
1381:
1382: $questiontype is the questiontype (currently only passed in if
1383: randomizebytry.
1384:
1385: =cut
1386:
1387: sub setup_prior_tries_hash {
1388: my ($func,$data,$questiontype) = @_;
1389: my $part = $Apache::inputtags::part;
1390: my $id = $Apache::inputtags::response[-1];
1391: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1392: my $partprefix = "$i:resource.$part";
1393: my $sub_key = "$partprefix.$id.submission";
1394: next if (!exists($Apache::lonhomework::history{$sub_key}));
1395: my $type_key = "$partprefix.type";
1396: my $type = $Apache::lonhomework::history{$type_key};
1397: my @other_data;
1398: if (ref($data) eq 'ARRAY') {
1399: foreach my $datum (@{ $data }) {
1400: if (ref($datum)) {
1401: push(@other_data,$datum);
1402: } else {
1403: my $info_key = "$i:resource.$part.$id.$datum";
1404: push(@other_data,$Apache::lonhomework::history{$info_key});
1405: }
1406: }
1407: }
1408: if ($questiontype eq 'randomizetry') {
1409: my $order_key = "$partprefix.$id.foilorder";
1410: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1411: if (@whichopts > 0) {
1412: shift(@other_data);
1413: unshift(@other_data,\@whichopts);
1414: }
1415: }
1416: my $output =
1417: &$func('grade',
1418: $Apache::lonhomework::history{$sub_key},
1419: \@other_data);
1420: if (defined($output)) {
1421: $Apache::inputtags::submission_display{$sub_key} = $output;
1422: }
1423: }
1424: }
1425:
1426: 1;
1427: __END__
1428:
1429: =pod
1430:
1431: =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