1: # The LearningOnline Network with CAPA
2: # mutliple choice style responses
3: #
4: # $Id: radiobuttonresponse.pm,v 1.57 2002/10/17 17:13:44 albertel 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: # 2/21 Guy
29:
30: package Apache::radiobuttonresponse;
31: use strict;
32: use HTML::Entities();
33:
34: BEGIN {
35: &Apache::lonxml::register('Apache::radiobuttonresponse',('radiobuttonresponse'));
36: }
37:
38: sub start_radiobuttonresponse {
39: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
40: my $result;
41: #when in a radiobutton response use these
42: &Apache::lonxml::register('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
43: push (@Apache::lonxml::namespace,'radiobuttonresponse');
44: my $id = &Apache::response::start_response($parstack,$safeeval);
45: if ($target eq 'meta') {
46: $result=&Apache::response::meta_package_write('radiobuttonresponse');
47: } elsif ($target eq 'edit' ) {
48: $result.=&Apache::edit::start_table($token).
49: '<tr><td>'.&Apache::lonxml::description($token)."</td><td>Delete:".
50: &Apache::edit::deletelist($target,$token)
51: ."</td><td> ".&Apache::edit::end_row()
52: .&Apache::edit::start_spanning_row();
53:
54: $result.=
55: &Apache::edit::text_arg('Max Number Of Shown Foils:','max',$token,'4').
56: &Apache::edit::select_arg('Randomize Foil Order','randomize',
57: ['yes','no'],$token).
58: &Apache::edit::end_row().&Apache::edit::start_spanning_row()."\n";
59: } elsif ($target eq 'modified') {
60: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
61: $safeeval,'max','randomize');
62: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
63: } elsif ($target eq 'tex') {
64: $result .= '\begin{enumerate}';
65: }
66: return $result;
67: }
68:
69: sub end_radiobuttonresponse {
70: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
71: my $result;
72: if ($target eq 'edit') { $result=&Apache::edit::end_table(); }
73: if ($target eq 'tex') { $result .= '\end{enumerate}'; }
74: &Apache::response::end_response;
75: pop @Apache::lonxml::namespace;
76: &Apache::lonxml::deregister('Apache::radiobuttonresponse',('foilgroup','foil','conceptgroup'));
77: return $result;
78: }
79:
80: %Apache::response::foilgroup=();
81: sub start_foilgroup {
82: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
83: my $result;
84: %Apache::response::foilgroup=();
85: $Apache::radiobuttonresponse::conceptgroup=0;
86: &Apache::response::setrandomnumber();
87: if ($target eq 'tex' && $Apache::lonhomework::type eq 'exam') {
88: $result.='\item[\textbf{'.$Apache::lonxml::counter.'}.]';
89: &Apache::lonxml::increment_counter();
90: }
91: return $result;
92: }
93:
94: sub storesurvey {
95: if ( !defined($ENV{'form.submitted'})) { return ''; }
96: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
97: &Apache::lonxml::debug("Here I am!:$response:");
98: if ( $response !~ /[0-9]+/) { return ''; }
99: my $id = $Apache::inputtags::response['-1'];
100: my @whichfoils=@{ $Apache::response::foilgroup{'names'} };
101: my %responsehash;
102: $responsehash{$whichfoils[$response]}=$response;
103: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.submission"}=&Apache::lonnet::hash2str(%responsehash);
104: $Apache::lonhomework::results{"resource.$Apache::inputtags::part.$id.awarddetail"}='SUBMITTED';
105: &Apache::lonxml::debug("submitted a $response<br />\n");
106: return '';
107: }
108:
109: sub grade_response {
110: my ($max,$randomize)=@_;
111: #keep the random numbers the same must always call this
112: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
113: if (!defined($ENV{'form.submitted'})) { return; }
114: my $response = $ENV{'form.HWVAL'.$Apache::inputtags::response['-1']};
115: if ( $response !~ /[0-9]+/) { return; }
116: my $part=$Apache::inputtags::part;
117: my $id = $Apache::inputtags::response['-1'];
118: my %responsehash;
119: $responsehash{$whichfoils[$response]}=$response;
120: my $responsestr=&Apache::lonnet::hash2str(%responsehash);
121: my %previous=&Apache::response::check_for_previous($responsestr,
122: $part,$id);
123: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
124: $responsestr;
125: &Apache::lonxml::debug("submitted a $response<br />\n");
126: my $ad;
127: if ($response == $answer) {
128: $ad='EXACT_ANS';
129: } else {
130: $ad='INCORRECT';
131: }
132: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=$ad;
133: &Apache::response::handle_previous(\%previous,$ad);
134: }
135:
136: sub end_foilgroup {
137: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
138:
139: my $result;
140: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' || $target eq 'tex') {
141: my $style = $Apache::lonhomework::type;
142: if ( $style eq 'survey' ) {
143: if ($target eq 'web' || $target eq 'answer' || $target eq 'tex') {
144: $result=&displayallfoils();
145: } elsif ( $target eq 'grade' ) {
146: $result=&storesurvey();
147: }
148: } else {
149: my $name;
150: my $max = &Apache::lonxml::get_param('max',$parstack,$safeeval,'-2');
151: my $randomize = &Apache::lonxml::get_param('randomize',$parstack,
152: $safeeval,'-2');
153: if ($target eq 'web' || $target eq 'tex') {
154: $result=&displayfoils($target,$max,$randomize);
155: } elsif ($target eq 'answer' ) {
156: $result=&displayanswers($max,$randomize);
157: } elsif ( $target eq 'grade') {
158: &grade_response($max,$randomize);
159: }
160: }
161: }
162: return $result;
163: }
164:
165: sub getfoilcounts {
166: my @names;
167: my $truecnt=0;
168: my $falsecnt=0;
169: my $name;
170: if ( $Apache::response::foilgroup{'names'} ) {
171: @names= @{ $Apache::response::foilgroup{'names'} };
172: }
173: foreach $name (@names) {
174: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
175: $truecnt++;
176: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
177: $falsecnt++;
178: }
179: }
180: return ($truecnt,$falsecnt);
181: }
182:
183: sub displayallfoils {
184: my $result;
185: &Apache::lonxml::debug("survey style display");
186: my @names = @{ $Apache::response::foilgroup{'names'} };
187: my $temp=0;
188: my $id=$Apache::inputtags::response['-1'];
189: my $part=$Apache::inputtags::part;
190: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
191: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
192: if (($Apache::lonhomework::history{"resource.$part.solved"} =~ /^correct/) || ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER')) {
193: foreach my $name (@names) {
194: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
195: $result.="<br />".$Apache::response::foilgroup{$name.'.value'};
196: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
197: $result.='<b>';
198: }
199: $result .= $Apache::response::foilgroup{$name.'.text'};
200: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
201: $result.='</b>';
202: }
203: }
204: }
205: } else {
206: foreach my $name (@names) {
207: if ($Apache::response::foilgroup{$name.'.value'} ne 'unused') {
208: $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
209: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
210: $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
211: $temp++;
212: }
213: }
214: }
215: return $result;
216: }
217:
218: sub whichfoils {
219: my ($max,$randomize)=@_;
220:
221: my @truelist;
222: my @falselist;
223: my @whichfalse =();
224: my ($truecnt,$falsecnt) = &getfoilcounts();
225: my $count=0;
226: # we will add in 1 of the true statements
227: if (($falsecnt+1)>$max) { $count=$max } else { $count=$falsecnt+1; }
228: my $answer=int(&Math::Random::random_uniform() * ($count));
229: &Apache::lonxml::debug("Count is $count, $answer is $answer");
230: my @names;
231: if ( $Apache::response::foilgroup{'names'} ) {
232: @names= @{ $Apache::response::foilgroup{'names'} };
233: }
234: if (&Apache::response::showallfoils()) {
235: @whichfalse=@names;
236: } elsif ($randomize eq 'no') {
237: &Apache::lonxml::debug("No randomization");
238: my $havetrue=0;
239: foreach my $name (@names) {
240: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
241: if (!$havetrue ) {
242: push(@whichfalse,$name); $havetrue++; $answer=$#whichfalse;
243: }
244: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
245: push (@whichfalse,$name);
246: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
247: } else {
248: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
249: }
250: }
251: } else {
252: my $current=0;
253: &Apache::lonhomework::showhash(%Apache::response::foilgroup);
254: my (%top,%bottom);
255: #first find out where everyone wants to be
256: foreach my $name (@names) {
257: $current++;
258: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
259: push (@truelist,$name);
260: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
261: $top{$name}=$current;
262: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
263: $bottom{$name}=$current;
264: }
265: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'false') {
266: push (@falselist,$name);
267: if ($Apache::response::foilgroup{$name.'.location'} eq 'top') {
268: $top{$name}=$current;
269: } elsif ($Apache::response::foilgroup{$name.'.location'} eq 'bottom') {
270: $bottom{$name}=$current;
271: }
272: } elsif ($Apache::response::foilgroup{$name.'.value'} eq 'unused') {
273: } else {
274: &Apache::lonxml::error(&HTML::Entities::encode("No valid value assigned ($Apache::response::foilgroup{$name.'.value'}) for foil $name in <foilgroup>"));
275: }
276: }
277: #pick a true statement
278: my $whichtrue = int(&Math::Random::random_uniform() * ($#truelist+1));
279: &Apache::lonxml::debug("Max is $max, From $#truelist elms, picking $whichtrue");
280: my $numinserted;
281: my (@toplist, @bottomlist);
282: my $topcount=0;
283: # assign everyone to either toplist/bottomlist or whichfalse
284: # which false is randomized, toplist bottomlist are in order
285: while ((($numinserted) < $max-1) && ($#falselist > -1)) {
286: &Apache::lonxml::debug("Have $#whichfalse max is $max");
287: my $afalse=int(&Math::Random::random_uniform() * ($#falselist+1));
288: &Apache::lonxml::debug("From $#falselist elms, picking $afalse");
289: $afalse=splice(@falselist,$afalse,1);
290: &Apache::lonxml::debug("Picked $afalse");
291: &Apache::lonhomework::showhash(('names'=>\@names));
292: &Apache::lonhomework::showhash(%top);
293: if ($top{$afalse}) {
294: $toplist[$top{$afalse}]=$afalse;
295: $topcount++;
296: } elsif ($bottom{$afalse}) {
297: $bottomlist[$bottom{$afalse}]=$afalse;
298: } else {
299: push (@whichfalse,$afalse);
300: }
301: }
302: my $truename=$truelist[$whichtrue];
303: my $dosplice=1;
304: #insert the true statement, keeping track of where it wants to be
305: if ($Apache::response::foilgroup{$truename.'.location'} eq 'top' ) {
306: $toplist[$top{$truename}]=$truename;
307: $answer=-1;
308: foreach my $top (reverse(@toplist)) {
309: if ($top) { $answer++;}
310: if ($top eq $truename) { last; }
311: }
312: $dosplice=0;
313: } elsif ($Apache::response::foilgroup{$truename.'.location'} eq 'bottom') {
314: $bottomlist[$bottom{$truename}]=$truename;
315: $answer=-1;
316: foreach my $bot (@bottomlist) {
317: if ($bot) { $answer++;}
318: if ($bot eq $truename) { last; }
319: }
320: $answer+=$topcount+$#whichfalse+1;
321: $dosplice=0;
322: } else {
323: if ($topcount>0) {
324: $answer = int(&Math::Random::random_uniform() * ($#whichfalse+1))
325: + $topcount;
326: }
327: }
328: #add the top items to the top, bottom items to the bottom
329: for (my $i=0;$i<=$#toplist;$i++) {
330: if ($toplist[$i]) { unshift(@whichfalse,$toplist[$i]) }
331: }
332: for (my $i=0;$i<=$#bottomlist;$i++) {
333: if ($bottomlist[$i]) { push(@whichfalse,$bottomlist[$i]) }
334: }
335: #if the true statement is randomized insert it into the list
336: if ($dosplice) { splice(@whichfalse,$answer,0,$truelist[$whichtrue]); }
337: }
338: &Apache::lonxml::debug("Answer is $answer");
339: return ($answer,@whichfalse);
340: }
341:
342: sub displayfoils {
343: my ($target,$max,$randomize)=@_;
344: my $result;
345:
346: my ($answer,@whichfoils)=&whichfoils($max,$randomize);
347: if ($Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"} =~ /^correct/ || ($Apache::inputtags::status[-1] eq 'SHOW_ANSWER')) {
348: foreach my $name (@whichfoils) {
349: if ($target ne 'tex') {
350: $result.="<br />";
351: } else {
352: $result.='\vskip 0 mm \item ';
353: }
354: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
355: if ($target ne 'tex') { $result.='Correct:<b>'; } else { $result.='Correct: ';}
356: } else {
357: $result.='Incorrect:';
358: }
359: if ($target ne 'tex') {
360: $result.=$Apache::response::foilgroup{$name.'.text'}."</input>\n";
361: } else {
362: $result.=$Apache::response::foilgroup{$name.'.text'};
363: }
364: if ($Apache::response::foilgroup{$name.'.value'} eq 'true') {
365: if ($target ne 'tex') { $result.='</b>';}
366: }
367: }
368: } else {
369: my @alphabet = ('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z');
370: my $i = 0;
371: my $temp=0;
372: my $id=$Apache::inputtags::response['-1'];
373: my $part=$Apache::inputtags::part;
374: my $lastresponse=$Apache::lonhomework::history{"resource.$part.$id.submission"};
375: my %lastresponse=&Apache::lonnet::str2hash($lastresponse);
376: foreach my $name (@whichfoils) {
377: if ($target ne 'tex') {
378: $result.="<br /><input type=\"radio\" name=\"HWVAL$Apache::inputtags::response['-1']\" value=\"$temp\" ";
379: if (defined($lastresponse{$name})) { $result .= 'checked="on"'; }
380: $result .= '>'.$Apache::response::foilgroup{$name.'.text'}."</input>\n";
381: if ($Apache::lonhomework::type eq 'exam') {
382: $result .= '<table border="1"><tr><td>A: Correct</td><td>B: Incorrect</td></tr></table>';
383: }
384: } else {
385: if ($Apache::lonhomework::type eq 'exam') {
386: $result .= '{\small \textbf{'.$alphabet[$i].'}}$\bigcirc$'.$Apache::response::foilgroup{$name.'.text'}.'\\\\';
387: $i++;
388: } else {
389: $result .= '\item '.$Apache::response::foilgroup{$name.'.text'};
390: }
391: }
392: $temp++;
393: }
394: }
395: if ($target ne 'tex') { $result.="<br />"; } else { $result.='\vskip 0 mm '; }
396: return $result;
397: }
398:
399: sub displayanswers {
400: my ($max,$randomize)=@_;
401: my ($answer,@whichopt) = &whichfoils($max,$randomize);
402: my $result=&Apache::response::answer_header('radiobuttonresponse');
403: foreach my $name (@whichopt) {
404: $result.=&Apache::response::answer_part('radiobuttonresponse',
405: $Apache::response::foilgroup{$name.'.value'})
406: }
407: $result.=&Apache::response::answer_footer('radiobuttonresponse');
408: return $result;
409: }
410:
411: sub start_conceptgroup {
412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
413: $Apache::radiobuttonresponse::conceptgroup=1;
414: %Apache::response::conceptgroup=();
415: my $result;
416: if ($target eq 'edit') {
417: $result.=&Apache::edit::tag_start($target,$token);
418: $result.=&Apache::edit::text_arg('Concept:','concept',$token,'50').
419: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
420: } elsif ($target eq 'modified') {
421: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
422: $safeeval,'concept');
423: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
424: }
425: return $result;
426: }
427:
428: sub end_conceptgroup {
429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
430: $Apache::radiobuttonresponse::conceptgroup=0;
431: my $result;
432: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
433: if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
434: my @names = @{ $Apache::response::conceptgroup{'names'} };
435: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
436: my $name=$names[$pick];
437: push @{ $Apache::response::foilgroup{'names'} }, $name;
438: $Apache::response::foilgroup{"$name.text"} = $Apache::response::conceptgroup{"$name.text"};
439: $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
440: $Apache::response::foilgroup{"$name.location"} = $Apache::response::conceptgroup{"$name.location"};
441: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
442: $Apache::response::foilgroup{"$name.concept"} = $concept;
443: &Apache::lonxml::debug("Selecting $name in $concept");
444: }
445: } elsif ($target eq 'edit') {
446: $result=&Apache::edit::end_table();
447: }
448: return $result;
449: }
450:
451: sub insert_conceptgroup {
452: my $result="\n\t\t<conceptgroup concept=\"\">".&insert_foil()."\n\t\t</conceptgroup>\n";
453: return $result;
454: }
455:
456: sub start_foil {
457: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
458: my $result='';
459: if ($target eq 'web' || $target eq 'tex') {
460: &Apache::lonxml::startredirection;
461: } elsif ($target eq 'edit') {
462: $result=&Apache::edit::tag_start($target,$token);
463: $result.=&Apache::edit::text_arg('Name:','name',$token);
464: $result.=&Apache::edit::select_or_text_arg('Correct Option:','value',
465: ['unused','true','false'],$token);
466: my $randomize=&Apache::lonxml::get_param('randomize',$parstack,
467: $safeeval,'-3');
468: if ($randomize ne 'no') {
469: $result.=&Apache::edit::select_arg('Location:','location',
470: ['random','top','bottom'],$token);
471: }
472: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
473: } elsif ($target eq 'modified') {
474: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
475: 'value','name','location');
476: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
477: }
478: return $result;
479: }
480:
481: sub end_foil {
482: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
483: my $text='';
484: if ($target eq 'web' || $target eq 'tex') { $text=&Apache::lonxml::endredirection; }
485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' || $target eq 'tex') {
486: my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
487: if ($value ne 'unused') {
488: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
489: my $location =&Apache::lonxml::get_param('location',$parstack,$safeeval);
490: if (!$name) { $name=$Apache::lonxml::curdepth; }
491: if ( $Apache::radiobuttonresponse::conceptgroup
492: && !&Apache::response::showallfoils() ) {
493: push @{ $Apache::response::conceptgroup{'names'} }, $name;
494: $Apache::response::conceptgroup{"$name.value"} = $value;
495: $Apache::response::conceptgroup{"$name.text"} = $text;
496: $Apache::response::conceptgroup{"$name.location"} = $location;
497: } else {
498: push @{ $Apache::response::foilgroup{'names'} }, $name;
499: $Apache::response::foilgroup{"$name.value"} = $value;
500: $Apache::response::foilgroup{"$name.text"} = $text;
501: $Apache::response::foilgroup{"$name.location"} = $location;
502: }
503: }
504: }
505: return '';
506: }
507:
508: sub insert_foil {
509: return '
510: <foil name="" value="unused">
511: <startouttext />
512: <endouttext />
513: </foil>';
514: }
515: 1;
516: __END__
517:
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