1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.140 2006/06/19 16:32:35 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: package Apache::response;
30: use strict;
31: use Apache::lonlocal;
32: use Apache::lonnet;
33:
34: BEGIN {
35: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
36: }
37:
38: sub start_response {
39: my ($parstack,$safeeval)=@_;
40: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
41: if ($#Apache::inputtags::import > -1) {
42: &Apache::lonxml::debug("Turning :$id: into");
43: $id = join('_',@Apache::inputtags::import).'_'.$id;
44: &Apache::lonxml::debug("New :$id:");
45: }
46: push (@Apache::inputtags::response,$id);
47: push (@Apache::inputtags::responselist,$id);
48: @Apache::inputtags::inputlist=();
49: if ($Apache::inputtags::part eq '' &&
50: !$Apache::lonhomework::ignore_response_errors) {
51: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
52: }
53: if ($Apache::inputtags::response_with_no_part &&
54: $Apache::inputtags::part ne '0') {
55: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
56: }
57: if ($Apache::inputtags::part eq '0') {
58: $Apache::inputtags::response_with_no_part=1;
59: }
60: return $id;
61: }
62:
63: sub end_response {
64: #pop @Apache::inputtags::response;
65: @Apache::inputtags::inputlist=();
66: return '';
67: }
68:
69: sub start_hintresponse {
70: my ($parstack,$safeeval)=@_;
71: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
72: push (@Apache::inputtags::hint,$id);
73: push (@Apache::inputtags::hintlist,$id);
74: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
75: return $id;
76: }
77:
78: sub end_hintresponse {
79: pop @Apache::inputtags::hint;
80: if (defined($Apache::inputtags::paramstack[-1])) {
81: %Apache::inputtags::params=
82: @{ pop(@Apache::inputtags::paramstack) };
83: }
84: return '';
85: }
86:
87: my @randomseeds;
88: sub pushrandomnumber {
89: my $rand_alg=&Apache::lonnet::get_rand_alg();
90: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
91: $rand_alg eq '64bit2') {
92: # do nothing
93: } else {
94: my @seed=&Math::Random::random_get_seed();
95: push(@randomseeds,\@seed);
96: }
97: &Apache::response::setrandomnumber(@_);
98: }
99: sub poprandomnumber {
100: my $rand_alg=&Apache::lonnet::get_rand_alg();
101: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
102: $rand_alg eq '64bit2') {
103: return;
104: }
105: my $seed=pop(@randomseeds);
106: if ($seed) {
107: &Math::Random::random_set_seed(@$seed);
108: } else {
109: &Apache::lonxml::error("Unable to restore random algorithm.");
110: }
111: }
112:
113: sub setrandomnumber {
114: my ($ignore_id2) = @_;
115: my $rndseed;
116: $rndseed=&Apache::structuretags::setup_rndseed();
117: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
118: &Apache::lonxml::debug("randseed $rndseed");
119: # $rndseed=unpack("%32i",$rndseed);
120: my $rand_alg=&Apache::lonnet::get_rand_alg();
121: my ($rndmod,$rndmod2);
122:
123: my ($id1,$id2,$shift_amt);
124: if ($Apache::lonhomework::parsing_a_problem) {
125: $id1=$Apache::inputtags::part;
126: if (defined($Apache::inputtags::response[-1])) {
127: $id2=$Apache::inputtags::response[-1];
128: }
129: $shift_amt=scalar(@Apache::inputtags::responselist);
130: } elsif ($Apache::lonhomework::parsing_a_task) {
131: $id1=$Apache::bridgetask::dimension;
132: if (!$ignore_id2 && defined($Apache::bridgetask::instance[-1])) {
133: $id2=$Apache::bridgetask::instance[-1];
134: }
135: $shift_amt=scalar(@Apache::bridgetask::instance);
136: }
137: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
138: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
139: $rand_alg eq '64bit2') {
140: $rndmod=(&Apache::lonnet::numval($id1) << 10);
141: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
142: } elsif ($rand_alg eq '64bit3') {
143: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
144: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
145: } elsif ($rand_alg eq '64bit4') {
146: my $shift=(4*$shift_amt)%30;
147: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
148: if (defined($id2)) {
149: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
150: }
151: } else {
152: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
153: }
154:
155: if ($rndseed =~/([,:])/) {
156: my $char=$1;
157: use integer;
158: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
159: $num1+=$rndmod;
160: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
161: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
162: $rndseed=$num1.$char.$num2;
163: } else {
164: $rndseed+=$rndmod;
165: if($Apache::lonnet::_64bit) {
166: use integer;
167: $rndseed=(($rndseed<<32)>>32);
168: }
169: }
170: &Apache::lonxml::debug("randseed $rndmod $rndseed");
171: &Apache::lonnet::setup_random_from_rndseed($rndseed);
172: return '';
173: }
174:
175: sub meta_parameter_write {
176: my ($name,$type,$default,$display)=@_;
177: my $partref=$Apache::inputtags::part;
178: my $result='<parameter part="'.$Apache::inputtags::part.'"';
179: if (defined($Apache::inputtags::response[-1])) {
180: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
181: $partref.='_'.$Apache::inputtags::response[-1];
182: }
183: $result.= ' name="'.$name.'"'.
184: ' type="'.$type.'"'.
185: (defined($default)?' default="'.$default.'"':'').
186: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
187: .'></parameter>'
188: ."\n";
189: return $result;
190: }
191:
192: sub meta_package_write {
193: my $name=shift;
194: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
195: if(defined($Apache::inputtags::response[-1])) {
196: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
197: }
198: $result.=' package="'.$name.'"></parameter>'."\n";
199: return $result;
200: }
201:
202: sub meta_stores_write {
203: my ($name,$type,$display)=@_;
204: my $partref=$Apache::inputtags::part;
205: my $result = '<stores part="'.$Apache::inputtags::part.'"';
206: if (defined($Apache::inputtags::response[-1])) {
207: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
208: $partref.='_'.$Apache::inputtags::response[-1];
209: }
210: $result.= ' name="'.$name.'"'.
211: ' type="'.$type.'"'.
212: ' display="'.$display.' [Part: '.$partref.']"'.
213: "></stores>\n";
214: }
215:
216: sub mandatory_part_meta {
217: #
218: # Autogenerate metadata for mandatory
219: # input (from RAT or lonparmset) and
220: # output (to lonspreadsheet)
221: # of each part
222: #
223: return
224: # &meta_parameter_write('opendate','date_start','',
225: # 'Opening Date').
226: # &meta_parameter_write('duedate','date_end','',
227: # 'Due Date').
228: # &meta_parameter_write('answerdate','date_start','',
229: # 'Show Answer Date').
230: # &meta_parameter_write('weight','int_zeropos','',
231: # 'Available Points').
232: # &meta_parameter_write('maxtries','int_pos','',
233: # 'Maximum Number of Tries').
234: &meta_package_write('part').
235: &meta_stores_write('solved','string',
236: 'Problem Status').
237: &meta_stores_write('tries','int_zeropos',
238: 'Number of Attempts').
239: &meta_stores_write('awarded','float',
240: 'Partial Credit Factor');
241: #
242: # Note: responseid-specific data 'submission' and 'awarddetail'
243: # not available to spreadsheet -> skip here
244: #
245: }
246:
247: sub meta_part_order {
248: if (@Apache::inputtags::partlist) {
249: my @parts=@Apache::inputtags::partlist;
250: shift(@parts);
251: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
252: } else {
253: return '<partorder>0</partorder>'."\n";
254: }
255: }
256:
257: sub meta_response_order {
258: if (@Apache::inputtags::responselist) {
259: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
260: '</responseorder>'."\n";
261: }
262: }
263:
264: sub check_for_previous {
265: my ($curresponse,$partid,$id) = @_;
266: my %previous;
267: $previous{'used'} = 0;
268: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
269: if ($key =~ /resource\.$partid\.$id\.submission$/) {
270: &Apache::lonxml::debug("Trying $key");
271: my $pastresponse=$Apache::lonhomework::history{$key};
272: if ($pastresponse eq $curresponse) {
273: $previous{'used'} = 1;
274: my $history;
275: if ( $key =~ /^(\d+):/ ) {
276: $history=$1;
277: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
278: $previous{'last'}='0';
279: push(@{ $previous{'version'} },$history);
280: } else {
281: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
282: $previous{'last'}='1';
283: }
284: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
285: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
286: }
287: }
288: }
289: &Apache::lonhomework::showhash(%previous);
290: return %previous;
291: }
292:
293: sub handle_previous {
294: my ($previous,$ad)=@_;
295: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
296: if ($$previous{'last'}) {
297: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
298: push(@Apache::inputtags::previous_version,$$previous{'version'});
299: } elsif ($Apache::lonhomework::type ne 'survey') {
300: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
301: push(@Apache::inputtags::previous_version,$$previous{'version'});
302: }
303: }
304: }
305:
306: sub view_or_modify {
307: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
308: my $myself=0;
309: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
310: $myself=1;
311: }
312: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
313: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
314: if ($mgr) { return "M"; }
315: if ($vgr) { return "V"; }
316: if ($myself) { return "V"; }
317: return '';
318: }
319:
320: sub start_dataresponse {
321: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
322: my $id = &Apache::response::start_response($parstack,$safeeval);
323: my $result;
324: if ($target eq 'web') {
325: $result = $token->[2]->{'display'}.':';
326: } elsif ($target eq 'meta') {
327: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
328: $token->[2]->{'type'},
329: $token->[2]->{'display'});
330: $result .= &Apache::response::meta_package_write('dataresponse');
331: }
332: return $result;
333: }
334:
335: sub end_dataresponse {
336: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
337: my $result;
338: if ( $target eq 'web' ) {
339: } elsif ($target eq 'grade' ) {
340: if ( defined $env{'form.submitted'}) {
341: my ($symb,$courseid,$domain,$name)=&Apache::lonxml::whichuser();
342: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
343: if ($allowed) {
344: &Apache::response::setup_params('dataresponse',$safeeval);
345: my $partid = $Apache::inputtags::part;
346: my $id = $Apache::inputtags::response['-1'];
347: my $response = $env{'form.HWVAL_'.$id};
348: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
349: if ( $response =~ /[^\s]/) {
350: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
351: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
352: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
353: }
354: } else {
355: $result='Not Permitted to change values.'
356: }
357: }
358: }
359: &Apache::response::end_response;
360: return $result;
361: }
362:
363: sub start_customresponse {
364: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
365: my $id = &Apache::response::start_response($parstack,$safeeval);
366: push(@Apache::lonxml::namespace,'customresponse');
367: my $result;
368: undef($Apache::response::custom_answer);
369: &Apache::lonxml::register('Apache::response',('answer'));
370: if ($target eq 'web') {
371: if ( &Apache::response::show_answer() ) {
372: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
373: $safeeval);
374: $Apache::inputtags::answertxt{$id}=$answer;
375: }
376: } elsif ($target eq 'edit') {
377: $result.=&Apache::edit::tag_start($target,$token);
378: $result.=&Apache::edit::text_arg('String to display for answer:',
379: 'answerdisplay',$token);
380: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
381: } elsif ($target eq 'modified') {
382: my $constructtag;
383: $constructtag=&Apache::edit::get_new_args($token,$parstack,
384: $safeeval,'answerdisplay');
385: if ($constructtag) {
386: $result = &Apache::edit::rebuild_tag($token);
387: $result.=&Apache::edit::handle_insert();
388: }
389: } elsif ($target eq 'answer' || $target eq 'grade') {
390: &Apache::response::reset_params();
391: } elsif ($target eq 'meta') {
392: $result .= &Apache::response::meta_package_write('customresponse');
393: }
394: return $result;
395: }
396:
397: sub end_customresponse {
398: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
399: my $result;
400: my $part=$Apache::inputtags::part;
401: my $id=$Apache::inputtags::response[-1];
402: if ( $target eq 'grade' && &Apache::response::submitted() ) {
403: my $response = &Apache::response::getresponse();
404: if ( $response =~ /[^\s]/ &&
405: $Apache::response::custom_answer_type eq 'loncapa/perl') {
406: if (!$Apache::lonxml::default_homework_loaded) {
407: &Apache::lonxml::default_homework_load($safeeval);
408: }
409: my %previous = &Apache::response::check_for_previous($response,
410: $part,$id);
411: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
412: $response;
413: my $error;
414: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
415: $response;
416:
417: my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer.'}',$safeeval);
418: if (!&Apache::inputtags::valid_award($award)) {
419: $error = $award;
420: $award = 'ERROR';
421: }
422: &Apache::response::handle_previous(\%previous,$award);
423: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
424: $award;
425: if ($error) {
426: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
427: $error;
428: }
429: }
430: }
431: pop(@Apache::lonxml::namespace);
432: &Apache::lonxml::deregister('Apache::response',('answer'));
433: &Apache::response::end_response();
434: return $result;
435: }
436:
437:
438: sub start_mathresponse {
439: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
440: my $id = &Apache::response::start_response($parstack,$safeeval);
441: push(@Apache::lonxml::namespace,'mathresponse');
442: my $result;
443: undef($Apache::response::custom_answer);
444: &Apache::lonxml::register('Apache::response',('answer'));
445: if ($target eq 'web') {
446: if ( &Apache::response::show_answer() ) {
447: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
448: $safeeval);
449: $Apache::inputtags::answertxt{$id}=$answer;
450: }
451: } elsif ($target eq 'edit') {
452: $result.=&Apache::edit::tag_start($target,$token);
453: $result.=&Apache::edit::text_arg('String to display for answer:',
454: 'answerdisplay',$token);
455: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
456: } elsif ($target eq 'modified') {
457: my $constructtag;
458: $constructtag=&Apache::edit::get_new_args($token,$parstack,
459: $safeeval,'answerdisplay');
460: if ($constructtag) {
461: $result = &Apache::edit::rebuild_tag($token);
462: $result.=&Apache::edit::handle_insert();
463: }
464: } elsif ($target eq 'answer' || $target eq 'grade') {
465: &Apache::response::reset_params();
466: } elsif ($target eq 'meta') {
467: $result .= &Apache::response::meta_package_write('mathresponse');
468: }
469: return $result;
470: }
471:
472: sub end_mathresponse {
473: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
474: my $result;
475: my $part=$Apache::inputtags::part;
476: my $id=$Apache::inputtags::response[-1];
477: if ( $target eq 'grade' && &Apache::response::submitted() ) {
478: my $response = &Apache::response::getresponse();
479: if ( $response =~ /[^\s]/ &&
480: $Apache::response::custom_answer_type eq 'loncapa/perl') {
481: if (!$Apache::lonxml::default_homework_loaded) {
482: &Apache::lonxml::default_homework_load($safeeval);
483: }
484: my %previous = &Apache::response::check_for_previous($response,
485: $part,$id);
486: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
487: $response;
488: my $error;
489: ${$safeeval->varglob('LONCAPA::mathresponse_submission')}=
490: $response;
491:
492: my $award = &Apache::run::run('{ my $submission=$LONCAPA::mathresponse_submission;'.$Apache::response::custom_answer.'}',$safeeval);
493: if (!&Apache::inputtags::valid_award($award)) {
494: $error = $award;
495: $award = 'ERROR';
496: }
497: &Apache::response::handle_previous(\%previous,$award);
498: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
499: $award;
500: if ($error) {
501: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
502: $error;
503: }
504: }
505: }
506: pop(@Apache::lonxml::namespace);
507: &Apache::lonxml::deregister('Apache::response',('answer'));
508: &Apache::response::end_response();
509: return $result;
510: }
511:
512:
513: sub start_answer {
514: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
515: my $result;
516: $Apache::response::custom_answer=
517: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser);
518: $Apache::response::custom_answer_type=
519: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval));
520: $Apache::response::custom_answer_type =~ s/\s+//g;
521: if ($target eq "edit" ) {
522: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
523: $result.=&Apache::edit::editfield($token->[1],
524: $Apache::response::custom_answer,
525: '',80,4);
526: } elsif ( $target eq "modified" ) {
527: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
528: }
529: return $result;
530: }
531:
532: sub end_answer {
533: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
534: if ($target eq 'edit' ) {
535: return &Apache::edit::end_table();
536: }
537: }
538:
539: sub decide_package {
540: my ($tagstack)=@_;
541: my $package;
542: if ($$tagstack[-1] eq 'parameter') {
543: $package='part';
544: } else {
545: my $i=-1;
546: while (defined($$tagstack[$i])) {
547: if ($$tagstack[$i] =~ /(response|hint)$/) {
548: $package=$$tagstack[$i];
549: last;
550: }
551: $i--;
552: }
553: }
554: return $package;
555: }
556:
557: sub start_responseparam {
558: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
559: my $result='';
560: if ($target eq 'meta') {
561: $result = &meta_parameter_write($token->[2]->{'name'},
562: $token->[2]->{'type'},
563: $token->[2]->{'default'},
564: $token->[2]->{'description'});
565: } elsif ($target eq 'edit') {
566: $result.=&Apache::edit::tag_start($target,$token);
567: my $optionlist;
568: my $package=&decide_package($tagstack);
569: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
570: if ($key =~ /^\Q$package\E&(.*)&display$/) {
571: $optionlist.='<option value="'.$1.'">'.
572: $Apache::lonnet::packagetab{$key}.'</option>';
573: }
574: }
575: if (defined($optionlist)) {
576: $result.='Use template: <select name="'.
577: &Apache::edit::html_element_name('parameter_package').'">'.
578: '<option value=""></option>'.$optionlist.'</select><br />';
579: }
580: $result.=&Apache::edit::text_arg('Name:','name',$token).
581: &Apache::edit::text_arg('Type:','type',$token).
582: &Apache::edit::text_arg('Description:','description',$token).
583: &Apache::edit::text_arg('Default:','default',$token).
584: "</td></tr>";
585: $result.=&Apache::edit::end_table;
586: } elsif ($target eq 'modified') {
587: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
588: $safeeval,'name','type',
589: 'description','default');
590: my $element=&Apache::edit::html_element_name('parameter_package');
591: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
592: my $name=$env{"form.$element"};
593: my $tag=&decide_package($tagstack);
594: $token->[2]->{'name'}=$name;
595: $token->[2]->{'type'}=
596: $Apache::lonnet::packagetab{"$tag&$name&type"};
597: $token->[2]->{'description'}=
598: $Apache::lonnet::packagetab{"$tag&$name&display"};
599: $token->[2]->{'default'}=
600: $Apache::lonnet::packagetab{"$tag&$name&default"};
601: $constructtag=1;
602: }
603: if ($constructtag) {
604: $result = &Apache::edit::rebuild_tag($token);
605: $result.=&Apache::edit::handle_insert();
606: }
607: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
608: $target eq 'tex' || $target eq 'analyze' ) {
609: if ($env{'request.state'} eq 'construct') {
610: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
611: my $default=&Apache::lonxml::get_param('default',$parstack,
612: $safeeval);
613: if ($name) {$Apache::inputtags::params{$name}=$default;}
614: }
615: }
616: return $result;
617: }
618:
619: sub end_responseparam {
620: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
621: if ($target eq 'edit') { return ('','no'); }
622: return '';
623: }
624:
625: sub start_parameter {
626: return &start_responseparam(@_);
627: }
628:
629: sub end_parameter {
630: return &end_responseparam(@_);
631: }
632:
633: sub reset_params {
634: %Apache::inputtags::params=();
635: }
636:
637: sub setup_params {
638: my ($tag,$safeeval) = @_;
639:
640: if ($env{'request.state'} eq 'construct') { return; }
641: my %paramlist=();
642: foreach my $key (keys(%Apache::lonnet::packagetab)) {
643: if ($key =~ /^$tag/) {
644: my ($package,$name) = split(/&/,$key);
645: $paramlist{$name}=1;
646: }
647: }
648: foreach my $key (keys(%paramlist)) {
649: my $entry= 'resource.'.$Apache::inputtags::part;
650: if (defined($Apache::inputtags::response[-1])) {
651: $entry.='_'.$Apache::inputtags::response[-1];
652: }
653: $entry.='.'.$key;
654: &Apache::lonxml::debug("looking for $entry");
655: my $value = &Apache::lonnet::EXT("$entry");
656: &Apache::lonxml::debug("$key has value :$value:");
657: if ($value eq 'con_lost' || $value =~ /^error:/) {
658: &Apache::lonxml::debug("using nothing");
659: $Apache::inputtags::params{$key}='';
660: } else {
661: my $string="{return qq\0".$value."\0}";
662: my $newvalue=&Apache::run::run($string,$safeeval,1);
663: if (defined($newvalue)) { $value=$newvalue; }
664: $Apache::inputtags::params{$key}=$value;
665: }
666: }
667: }
668:
669: {
670: my @answer_bits;
671:
672: sub answer_header {
673: my ($type,$increment) = @_;
674: my $result;
675: if ($env{'form.answer_output_mode'} eq 'tex') {
676: undef(@answer_bits);
677: my $bit;
678: if ($Apache::lonhomework::type eq 'exam') {
679: $bit = ($Apache::lonxml::counter+$increment).') ';
680: } else {
681: $bit .= ' Answer for Part: \verb|'.
682: $Apache::inputtags::part.'| ';
683: }
684: push(@answer_bits,$bit);
685: } else {
686: $result = '<table border="1"><tr>';
687: if ($Apache::lonhomework::type eq 'exam') {
688: $result .= '<td>'.($Apache::lonxml::counter+$increment). ')</td>';
689: } else {
690: $result .= '<td>Answer for Part:'.$Apache::inputtags::part.'</td>';
691: }
692: $result .= "\n";
693: }
694: return $result;
695: }
696:
697: sub answer_part {
698: my ($type,$answer) = @_;
699: my $result;
700: if ($env{'form.answer_output_mode'} eq 'tex') {
701: my $to_use='|';
702: foreach my $value (32..126) {
703: my $char=pack('c',$value);
704: if ($answer !~ /\Q$char\E/) {
705: $to_use=$char;
706: last;
707: }
708: }
709: if ($answer ne '') {
710: push(@answer_bits,'\verb'.$to_use.$answer.$to_use);
711: }
712: } else {
713: $result = '<td>'.$answer.'</td>';
714: }
715: return $result;
716: }
717:
718: sub answer_footer {
719: my ($type) = @_;
720: my $result;
721: if ($env{'form.answer_output_mode'} eq 'tex') {
722: my $columns = scalar(@answer_bits);
723: $result = ' \vskip 0 mm \noindent \begin{tabular}{|'.'c|'x$columns.'}\hline ';
724: $result .= join(' & ',@answer_bits);
725: $result .= ' \\\\ \\hline \end{tabular} \vskip 0 mm ';
726: } else {
727: $result = '</tr></table>';
728: }
729: return $result;
730: }
731:
732: }
733:
734: sub showallfoils {
735: if (defined($env{'form.showallfoils'})) {
736: my ($symb)=&Apache::lonxml::whichuser();
737: if (($env{'request.state'} eq 'construct') ||
738: ($env{'user.adv'} && $symb eq '') ||
739: ($Apache::lonhomework::viewgrades) ) {
740: return 1;
741: }
742: }
743: if ($Apache::lonhomework::type eq 'survey') { return 1; }
744: return 0;
745: }
746:
747: sub getresponse {
748: my ($temp,$resulttype)=@_;
749: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
750: my $response;
751: if (!defined($temp)) {
752: $temp=1;
753: } else {
754: $formparm.=":$temp";
755: }
756: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
757: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
758: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
759: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
760: if ($env{'form.submitted'} eq 'scantron') {
761: my $part = $Apache::inputtags::part;
762: my $id = $Apache::inputtags::response[-1];
763: $response = $env{'scantron.'.($Apache::lonxml::counter+$temp-1).
764: '.answer'};
765: # save bubbled letter for later
766: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
767: $response;
768: if ($resulttype ne 'letter') {
769: if ($resulttype eq 'A is 1') {
770: $response = $let_to_num{$response}+1;
771: } else {
772: $response = $let_to_num{$response};
773: }
774: }
775: } else {
776: $response = $env{$formparm};
777: }
778: return $response;
779: }
780:
781: sub repetition {
782: my $id = $Apache::inputtags::part;
783: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
784: if (!defined($weight) || ($weight eq '')) { $weight=1; }
785: my $repetition = int($weight/10);
786: if ($weight % 10 != 0) { $repetition++; }
787: return $repetition;
788: }
789:
790: sub scored_response {
791: my ($part,$id)=@_;
792: my $repetition=&repetition();
793: my $score=0;
794: for (my $i=0;$i<$repetition;$i++) {
795: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
796: my $increase=&Apache::response::getresponse($i+1);
797: if ($increase ne '') { $score+=$increase+1; }
798: }
799: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
800: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
801: my $pcr=$score/$weight;
802: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
803: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
804: 'ASSIGNED_SCORE';
805: return $repetition;
806: }
807:
808: sub whichorder {
809: my ($max,$randomize,$showall,$hash)=@_;
810: #&Apache::lonxml::debug("man $max randomize $randomize");
811: if (!defined(@{ $$hash{'names'} })) { return; }
812: my @names = @{ $$hash{'names'} };
813: my @whichopt =();
814: my (%top,@toplist,%bottom,@bottomlist);
815: if (!($showall || ($randomize eq 'no'))) {
816: my $current=0;
817: foreach my $name (@names) {
818: $current++;
819: if ($$hash{"$name.location"} eq 'top') {
820: $top{$name}=$current;
821: } elsif ($$hash{"$name.location"} eq 'bottom') {
822: $bottom{$name}=$current;
823: }
824: }
825: }
826: my $topcount=0;
827: my $bottomcount=0;
828: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
829: && ($#names > -1)) {
830: #&Apache::lonxml::debug("Have $#whichopt max is $max");
831: my $aopt;
832: if ($showall || ($randomize eq 'no')) {
833: $aopt=0;
834: } else {
835: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
836: }
837: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
838: $aopt=splice(@names,$aopt,1);
839: #&Apache::lonxml::debug("Picked $aopt");
840: if ($top{$aopt}) {
841: $toplist[$top{$aopt}]=$aopt;
842: $topcount++;
843: } elsif ($bottom{$aopt}) {
844: $bottomlist[$bottom{$aopt}]=$aopt;
845: $bottomcount++;
846: } else {
847: push (@whichopt,$aopt);
848: }
849: }
850: for (my $i=0;$i<=$#toplist;$i++) {
851: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
852: }
853: for (my $i=0;$i<=$#bottomlist;$i++) {
854: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
855: }
856: return @whichopt;
857: }
858:
859: sub show_answer {
860: my $part = $Apache::inputtags::part;
861: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
862: my $status = $Apache::inputtags::status[-1];
863: return ( ($award =~ /^correct/
864: && lc($Apache::lonhomework::problemstatus) ne 'no')
865: || $status eq "SHOW_ANSWER");
866: }
867:
868: sub analyze_store_foilgroup {
869: my ($shown,$attrs)=@_;
870: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
871: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
872: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
873: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
874: foreach my $attr (@$attrs) {
875: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
876: $Apache::response::foilgroup{"$name.".$attr};
877: }
878: }
879: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
880: }
881:
882: sub check_if_computed {
883: my ($token,$parstack,$safeeval,$name)=@_;
884: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
885: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
886: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
887: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
888: }
889: }
890:
891: sub pick_foil_for_concept {
892: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
893: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
894: my @names = @{ $Apache::response::conceptgroup{'names'} };
895: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
896: my $name=$names[$pick];
897: push @{ $Apache::response::foilgroup{'names'} }, $name;
898: foreach my $attr (@$attrs) {
899: $Apache::response::foilgroup{"$name.".$attr} =
900: $Apache::response::conceptgroup{"$name.".$attr};
901: }
902: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
903: $Apache::response::foilgroup{"$name.concept"} = $concept;
904: &Apache::lonxml::debug("Selecting $name in $concept");
905: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
906: if ($target eq 'analyze') {
907: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
908: $concept);
909: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
910: $Apache::response::conceptgroup{'names'};
911: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
912: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
913: $name);
914: foreach my $attr (@$attrs) {
915: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
916: $Apache::response::conceptgroup{"$name.$attr"};
917: }
918: }
919: }
920: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
921: $hinthash->{"$part_id.concept.$concept"}=
922: $Apache::response::conceptgroup{'names'};
923:
924: }
925:
926: sub get_response_param {
927: my ($id,$name,$default)=@_;
928: my $parameter;
929: if ($env{'request.state'} eq 'construct' &&
930: defined($Apache::inputtags::params{$name})) {
931: $parameter=$Apache::inputtags::params{$name};
932: } else {
933: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
934: }
935: if (!defined($parameter) || $parameter eq '') {
936: $parameter = $default;
937: }
938: return $parameter;
939: }
940:
941: sub submitted {
942: my ($who)=@_;
943:
944: # when scatron grading any submission is a submission
945: if ($env{'form.submitted'} eq 'scantron') { return 1; }
946: # if the caller only cared if this was a scantron submission
947: if ($who eq 'scantron') { return 0; }
948: # if the Submit Answer button for this particular part was pressed
949: my $partid=$Apache::inputtags::part;
950: if (defined($env{'form.submit_'.$partid})) { return 1; }
951: # Submit All button on a .page was pressed
952: if (defined($env{'form.all_submit'})) { return 1; }
953: # otherwise no submission occured
954: return 0;
955: }
956:
957: sub add_to_gradingqueue {
958: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
959: if ( $courseid eq ''
960: || $symb eq ''
961: || $env{'request.state'} eq 'construct'
962: || $Apache::lonhomework::type ne 'problem') {
963: return;
964: }
965:
966: my %queue_info = ( 'type' => 'problem',
967: 'time' => time);
968:
969: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
970: $queue_info{'slot'}=
971: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
972: }
973:
974: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
975: if ($result ne 'ok') {
976: &Apache::lonxml::error("add_to_queue said $result");
977: }
978: }
979:
980: # basically undef and 0 (both false) mean that they still have work to do
981: # and all true values mean that they can't do any more work
982: #
983: # a return of undef means it is unattempted
984: # a return of 0 means it is attmpted and wrong but still has tries
985: # a return of 1 means it is marked correct
986: # a return of 2 means they have exceed maximum number of tries
987: # a return of 3 means it after the answer date
988: sub check_status {
989: my ($id)=@_;
990: if (!$id) { $id=$Apache::linputtags::part; }
991: my $curtime=&Apache::lonnet::EXT('system.time');
992: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
993: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
994: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
995: if ( $opendate && $curtime > $opendate &&
996: $duedate && $curtime > $duedate &&
997: $answerdate && $curtime > $answerdate) {
998: return 3;
999: }
1000: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1001: if ($status =~ /^correct/) { return 1; }
1002: if (!$status) { return undef; }
1003: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1004: if ($maxtries eq '') { $maxtries=2; }
1005: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1006: if ($curtries < $maxtries) { return 0; }
1007: return 2;
1008: }
1009:
1010: 1;
1011: __END__
1012:
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