1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.214 2009/04/17 01:00:15 www Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28:
29: =pod
30:
31: =head1 NAME
32:
33: Apache::resonse.pm
34:
35: =head1 SYNOPSIS
36:
37: This is part of the LearningOnline Network with CAPA project
38: described at http://www.lon-capa.org.
39:
40:
41: =head1 NOTABLE SUBROUTINES
42:
43: =over
44:
45: =item
46:
47: =back
48:
49: =cut
50:
51:
52: package Apache::response;
53: use strict;
54: use Apache::lonlocal;
55: use Apache::lonnet;
56: use Apache::lonmaxima();
57: use Apache::lonr();
58:
59: BEGIN {
60: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
61: }
62:
63: sub start_response {
64: my ($parstack,$safeeval)=@_;
65: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
66: if ($#Apache::inputtags::import > -1) {
67: &Apache::lonxml::debug("Turning :$id: into");
68: $id = join('_',@Apache::inputtags::import).'_'.$id;
69: &Apache::lonxml::debug("New :$id:");
70: }
71: push (@Apache::inputtags::response,$id);
72: push (@Apache::inputtags::responselist,$id);
73: @Apache::inputtags::inputlist=();
74: if ($Apache::inputtags::part eq '' &&
75: !$Apache::lonhomework::ignore_response_errors) {
76: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
77: }
78: if ($Apache::inputtags::response_with_no_part &&
79: $Apache::inputtags::part ne '0') {
80: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
81: }
82: if ($Apache::inputtags::part eq '0') {
83: $Apache::inputtags::response_with_no_part=1;
84: }
85: return $id;
86: }
87:
88: sub end_response {
89: #pop @Apache::inputtags::response;
90: @Apache::inputtags::inputlist=();
91: return '';
92: }
93:
94: sub start_hintresponse {
95: my ($parstack,$safeeval)=@_;
96: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
97: push (@Apache::inputtags::hint,$id);
98: push (@Apache::inputtags::hintlist,$id);
99: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
100: return $id;
101: }
102:
103: sub end_hintresponse {
104: pop @Apache::inputtags::hint;
105: if (defined($Apache::inputtags::paramstack[-1])) {
106: %Apache::inputtags::params=
107: @{ pop(@Apache::inputtags::paramstack) };
108: }
109: return '';
110: }
111:
112: my @randomseeds;
113: sub pushrandomnumber {
114: my $rand_alg=&Apache::lonnet::get_rand_alg();
115: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
116: $rand_alg eq '64bit2') {
117: # do nothing
118: } else {
119: my @seed=&Math::Random::random_get_seed();
120: push(@randomseeds,\@seed);
121: }
122: &Apache::response::setrandomnumber(@_);
123: }
124: sub poprandomnumber {
125: my $rand_alg=&Apache::lonnet::get_rand_alg();
126: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
127: $rand_alg eq '64bit2') {
128: return;
129: }
130: my $seed=pop(@randomseeds);
131: if ($seed) {
132: &Math::Random::random_set_seed(@$seed);
133: } else {
134: &Apache::lonxml::error("Unable to restore random algorithm.");
135: }
136: }
137:
138: sub setrandomnumber {
139: my ($ignore_id2) = @_;
140: my $rndseed;
141: $rndseed=&Apache::structuretags::setup_rndseed();
142: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
143: &Apache::lonxml::debug("randseed $rndseed");
144: # $rndseed=unpack("%32i",$rndseed);
145: my $rand_alg=&Apache::lonnet::get_rand_alg();
146: my ($rndmod,$rndmod2);
147:
148: my ($id1,$id2,$shift_amt);
149: if ($Apache::lonhomework::parsing_a_problem) {
150: $id1=$Apache::inputtags::part;
151: if (defined($Apache::inputtags::response[-1])) {
152: $id2=$Apache::inputtags::response[-1];
153: }
154: $shift_amt=scalar(@Apache::inputtags::responselist);
155: } elsif ($Apache::lonhomework::parsing_a_task) {
156: $id1=&Apache::bridgetask::get_dim_id();
157: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
158: $id2=$Apache::bridgetask::instance{$id1}[-1];
159: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
160: } else {
161: $shift_amt=0;
162: }
163: }
164: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
165: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
166: $rand_alg eq '64bit2') {
167: $rndmod=(&Apache::lonnet::numval($id1) << 10);
168: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
169: } elsif ($rand_alg eq '64bit3') {
170: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
171: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
172: } elsif ($rand_alg eq '64bit4') {
173: my $shift=(4*$shift_amt)%30;
174: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
175: if (defined($id2)) {
176: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
177: }
178: } else {
179: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
180: }
181:
182: if ($rndseed =~/([,:])/) {
183: my $char=$1;
184: use integer;
185: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
186: $num1+=$rndmod;
187: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
188: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
189: $rndseed=$num1.$char.$num2;
190: } else {
191: $rndseed+=$rndmod;
192: if($Apache::lonnet::_64bit) {
193: use integer;
194: $rndseed=(($rndseed<<32)>>32);
195: }
196: }
197: &Apache::lonxml::debug("randseed $rndmod $rndseed");
198: &Apache::lonnet::setup_random_from_rndseed($rndseed);
199: return '';
200: }
201:
202: sub meta_parameter_write {
203: my ($name,$type,$default,$display)=@_;
204: my $partref=$Apache::inputtags::part;
205: my $result='<parameter part="'.$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="'.$type.'"'.
212: (defined($default)?' default="'.$default.'"':'').
213: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
214: .'></parameter>'
215: ."\n";
216: return $result;
217: }
218:
219: sub meta_package_write {
220: my $name=shift;
221: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
222: if(defined($Apache::inputtags::response[-1])) {
223: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
224: }
225: $result.=' package="'.$name.'"></parameter>'."\n";
226: return $result;
227: }
228:
229: sub meta_stores_write {
230: my ($name,$type,$display)=@_;
231: my $partref=$Apache::inputtags::part;
232: my $result = '<stores part="'.$Apache::inputtags::part.'"';
233: if (defined($Apache::inputtags::response[-1])) {
234: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
235: $partref.='_'.$Apache::inputtags::response[-1];
236: }
237: $result.= ' name="'.$name.'"'.
238: ' type="'.$type.'"'.
239: ' display="'.$display.' [Part: '.$partref.']"'.
240: "></stores>\n";
241: }
242:
243: =pod
244:
245: =item mandatory_part_meta()
246:
247: Autogenerate metadata for mandatory
248: input (from RAT or lonparmset) and
249: output (to lonspreadsheet)
250: of each part
251:
252: Note: responseid-specific data 'submission' and 'awarddetail'
253: not available to spreadsheet -> skip here
254:
255: =cut
256:
257:
258: sub mandatory_part_meta {
259: return &meta_package_write('part').
260: &meta_stores_write('solved','string','Problem Status').
261: &meta_stores_write('tries','int_zeropos','Number of Attempts').
262: &meta_stores_write('awarded','float','Partial Credit Factor');
263: }
264:
265: sub meta_part_order {
266: if (@Apache::inputtags::partlist) {
267: my @parts=@Apache::inputtags::partlist;
268: shift(@parts);
269: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
270: } else {
271: return '<partorder>0</partorder>'."\n";
272: }
273: }
274:
275: sub meta_response_order {
276: if (@Apache::inputtags::responselist) {
277: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
278: '</responseorder>'."\n";
279: }
280: }
281:
282: sub check_for_previous {
283: my ($curresponse,$partid,$id,$last) = @_;
284: my %previous;
285: $previous{'used'} = 0;
286: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
287: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
288: if ( $last && $key =~ /^(\d+):/ ) {
289: next if ($1 >= $last);
290: }
291: &Apache::lonxml::debug("Trying $key");
292: my $pastresponse=$Apache::lonhomework::history{$key};
293: if ($pastresponse eq $curresponse) {
294: $previous{'used'} = 1;
295: my $history;
296: if ( $key =~ /^(\d+):/ ) {
297: $history=$1;
298: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
299: $previous{'last'}='0';
300: push(@{ $previous{'version'} },$history);
301: } else {
302: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
303: $previous{'last'}='1';
304: }
305: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
306: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
307: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
308: }
309: }
310: }
311: &Apache::lonhomework::showhash(%previous);
312: return %previous;
313: }
314:
315: sub handle_previous {
316: my ($previous,$ad)=@_;
317: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
318: if ($$previous{'last'}) {
319: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
320: push(@Apache::inputtags::previous_version,$$previous{'version'});
321: } elsif ($Apache::lonhomework::type ne 'survey') {
322: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
323: push(@Apache::inputtags::previous_version,$$previous{'version'});
324: }
325: }
326: }
327:
328: sub view_or_modify {
329: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
330: my $myself=0;
331: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
332: $myself=1;
333: }
334: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
335: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
336: if ($mgr) { return "M"; }
337: if ($vgr) { return "V"; }
338: if ($myself) { return "V"; }
339: return '';
340: }
341:
342: sub start_dataresponse {
343: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
344: my $id = &Apache::response::start_response($parstack,$safeeval);
345: my $result;
346: if ($target eq 'web') {
347: $result = $token->[2]->{'display'}.':';
348: } elsif ($target eq 'meta') {
349: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
350: $token->[2]->{'type'},
351: $token->[2]->{'display'});
352: $result .= &Apache::response::meta_package_write('dataresponse');
353: }
354: return $result;
355: }
356:
357: sub end_dataresponse {
358: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
359: my $result;
360: if ( $target eq 'web' ) {
361: } elsif ($target eq 'grade' ) {
362: if ( defined $env{'form.submitted'}) {
363: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
364: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
365: if ($allowed) {
366: &Apache::response::setup_params('dataresponse',$safeeval);
367: my $partid = $Apache::inputtags::part;
368: my $id = $Apache::inputtags::response['-1'];
369: my $response = $env{'form.HWVAL_'.$id};
370: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
371: if ( $response =~ /[^\s]/) {
372: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
373: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
374: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
375: }
376: } else {
377: $result='Not Permitted to change values.'
378: }
379: }
380: }
381: &Apache::response::end_response;
382: return $result;
383: }
384:
385: sub start_customresponse {
386: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
387: my $id = &Apache::response::start_response($parstack,$safeeval);
388: push(@Apache::lonxml::namespace,'customresponse');
389: my $result;
390: @Apache::response::custom_answer=();
391: @Apache::response::custom_answer_type=();
392: &Apache::lonxml::register('Apache::response',('answer'));
393: if ($target eq 'web') {
394: if ( &Apache::response::show_answer() ) {
395: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
396: $safeeval);
397: $Apache::inputtags::answertxt{$id}=[$answer];
398: }
399: } elsif ($target eq 'edit') {
400: $result.=&Apache::edit::tag_start($target,$token);
401: $result.=&Apache::edit::text_arg('String to display for answer:',
402: 'answerdisplay',$token);
403: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
404: } elsif ($target eq 'modified') {
405: my $constructtag;
406: $constructtag=&Apache::edit::get_new_args($token,$parstack,
407: $safeeval,'answerdisplay');
408: if ($constructtag) {
409: $result = &Apache::edit::rebuild_tag($token);
410: }
411: } elsif ($target eq 'answer' || $target eq 'grade') {
412: &Apache::response::reset_params();
413: } elsif ($target eq 'meta') {
414: $result .= &Apache::response::meta_package_write('customresponse');
415: }
416: return $result;
417: }
418:
419: sub end_customresponse {
420: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
421: my $result;
422: my $part=$Apache::inputtags::part;
423: my $id=$Apache::inputtags::response[-1];
424: if ( $target eq 'grade' && &Apache::response::submitted() ) {
425: my $response = &Apache::response::getresponse();
426: if ($Apache::lonhomework::type eq 'exam' ||
427: &Apache::response::submitted('scantron')) {
428: &Apache::response::scored_response($part,$id);
429: } elsif ( $response =~ /[^\s]/ &&
430: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
431: if (!$Apache::lonxml::default_homework_loaded) {
432: &Apache::lonxml::default_homework_load($safeeval);
433: }
434: my %previous = &Apache::response::check_for_previous($response,
435: $part,$id);
436: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
437: $response;
438: my $error;
439: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
440: $response;
441:
442: my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
443: if (!&Apache::inputtags::valid_award($award)) {
444: $error = $award;
445: $award = 'ERROR';
446: }
447: &Apache::response::handle_previous(\%previous,$award);
448: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
449: $award;
450: if ($error) {
451: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
452: $error;
453: }
454: }
455: } elsif ( $target eq 'answer') {
456: $result = &Apache::response::answer_header('customresponse');
457: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
458: $safeeval);
459: if ($env{'form.answer_output_mode'} ne 'tex') {
460: $answer = '<b>'.$answer.'</b>';
461: }
462: $result .= &Apache::response::answer_part('customresponse',$answer);
463: $result .= &Apache::response::answer_footer('customresponse');
464: }
465: if ($target eq 'web') {
466: &setup_prior_tries_hash(\&format_prior_response_math);
467: }
468: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
469: $target eq 'tex' || $target eq 'analyze') {
470: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
471: "$part.$id");
472: if ($target eq 'analyze') {
473: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
474: &Apache::lonhomework::set_bubble_lines();
475: }
476: }
477: pop(@Apache::lonxml::namespace);
478: pop(@Apache::response::custom_answer);
479: pop(@Apache::response::custom_answer_type);
480: &Apache::lonxml::deregister('Apache::response',('answer'));
481: &Apache::response::end_response();
482: return $result;
483: }
484:
485: sub format_prior_response_custom {
486: my ($mode,$answer) =@_;
487: return '<span class="LC_prior_custom">'.
488: &HTML::Entities::encode($answer,'"<>&').'</span>';
489: }
490:
491: sub start_mathresponse {
492: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
493: my $id = &Apache::response::start_response($parstack,$safeeval);
494: push(@Apache::lonxml::namespace,'mathresponse');
495: my $result;
496: @Apache::response::custom_answer=();
497: @Apache::response::custom_answer_type=();
498: &Apache::lonxml::register('Apache::response',('answer'));
499: if ($target eq 'web') {
500: if ( &Apache::response::show_answer() ) {
501: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
502: $safeeval);
503: $Apache::inputtags::answertxt{$id}=[$answer];
504: }
505:
506: } elsif ($target eq 'edit') {
507: $result.=&Apache::edit::tag_start($target,$token);
508: $result.=&Apache::edit::text_arg('String to display for answer:',
509: 'answerdisplay',$token);
510: $result.=&Apache::edit::select_arg('Algebra System:',
511: 'cas',
512: ['maxima','R'],
513: $token);
514: $result.=&Apache::edit::text_arg('Argument Array:',
515: 'args',$token).
516: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
517: $result.=&Apache::edit::text_arg('Libraries:',
518: 'libraries',$token).
519: &Apache::loncommon::help_open_topic('Maxima_Libraries');
520: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
521: } elsif ($target eq 'modified') {
522: my $constructtag;
523: $constructtag=&Apache::edit::get_new_args($token,$parstack,
524: $safeeval,'answerdisplay','cas','args','libraries');
525: if ($constructtag) {
526: $result = &Apache::edit::rebuild_tag($token);
527: }
528: } elsif ($target eq 'answer' || $target eq 'grade') {
529: &Apache::response::reset_params();
530: } elsif ($target eq 'meta') {
531: $result .= &Apache::response::meta_package_write('mathresponse');
532: }
533: return $result;
534: }
535:
536: sub edit_mathresponse_button {
537: my ($id,$field)=@_;
538: my $button=&mt('Edit Answer');
539: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
540: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
541: return(<<ENDFORMULABUTTON);
542: <script type="text/javascript" language="JavaScript">
543: function edit_${id}_${field} (textarea) {
544: thenumber = textarea;
545: thedata = document.forms['lonhomework'].elements[textarea].value;
546: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
547: }
548: </script>
549: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$button' title='$button'/></a>
550: ENDFORMULABUTTON
551: }
552:
553: sub end_mathresponse {
554: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
555: my $result;
556: my $part=$Apache::inputtags::part;
557: my $id=$Apache::inputtags::response[-1];
558: if ( $target eq 'grade' && &Apache::response::submitted() ) {
559: my $response = &Apache::response::getresponse();
560: if ( $response =~ /[^\s]/ ) {
561: if (!$Apache::lonxml::default_homework_loaded) {
562: &Apache::lonxml::default_homework_load($safeeval);
563: }
564: my %previous = &Apache::response::check_for_previous($response,
565: $part,$id);
566: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
567: $response;
568: my $error;
569: my $award;
570: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
571: if ($cas eq 'maxima') {
572: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
573: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
574: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
575: }
576: if ($cas eq 'R') {
577: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
578: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
579: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
580: }
581:
582: if (!&Apache::inputtags::valid_award($award)) {
583: $error = $award;
584: $award = 'ERROR';
585: }
586: &Apache::response::handle_previous(\%previous,$award);
587: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
588: $award;
589: if ($error) {
590: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
591: $error;
592: }
593: }
594: }
595: if ($target eq 'web') {
596: &setup_prior_tries_hash(\&format_prior_response_math);
597: my $partid = $Apache::inputtags::part;
598: my $id = $Apache::inputtags::response[-1];
599: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
600: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
601: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
602: }
603: }
604:
605: pop(@Apache::lonxml::namespace);
606: pop(@Apache::response::custom_answer);
607: pop(@Apache::response::custom_answer_type);
608: &Apache::lonxml::deregister('Apache::response',('answer'));
609: &Apache::response::end_response();
610: return $result;
611: }
612:
613: sub format_prior_response_math {
614: my ($mode,$answer) =@_;
615: return '<span class="LC_prior_math">'.
616: &HTML::Entities::encode($answer,'"<>&').'</span>';
617: }
618:
619: sub implicit_multiplication {
620: my ($expression)=@_;
621: # Escape scientific notation, so 3e8 does not become 3*e*8
622: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
623: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
624: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
625: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
626: # Fill in multiplication signs
627: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
628: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
629: # )( -> )*(; ) ( -> )*(
630: $expression=~s/\)\s*\(/\)\*\(/gs;
631: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
632: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
633: # a ( -> a*(
634: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
635: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
636: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
637: # 3&8 -> 3e8; 3&-4 -> 3e-4
638: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
639: return $expression;
640: }
641:
642: sub start_answer {
643: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
644: my $result;
645: push(@Apache::response::custom_answer,
646: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
647: push(@Apache::response::custom_answer_type,
648: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
649: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
650: if ($target eq "edit" ) {
651: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
652: $result.=&Apache::edit::editfield($token->[1],
653: $Apache::response::custom_answer[-1],
654: '',80,4);
655: } elsif ( $target eq "modified" ) {
656: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
657: }
658: return $result;
659: }
660:
661: sub end_answer {
662: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
663: if ($target eq 'edit' ) {
664: return &Apache::edit::end_table();
665: }
666: }
667:
668: sub decide_package {
669: my ($tagstack)=@_;
670: my $package;
671: if ($$tagstack[-1] eq 'parameter') {
672: $package='part';
673: } else {
674: my $i=-1;
675: while (defined($$tagstack[$i])) {
676: if ($$tagstack[$i] =~ /(response|hint)$/) {
677: $package=$$tagstack[$i];
678: last;
679: }
680: $i--;
681: }
682: }
683: return $package;
684: }
685:
686: sub start_responseparam {
687: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
688: my $result='';
689: if ($target eq 'meta') {
690: $result = &meta_parameter_write($token->[2]->{'name'},
691: $token->[2]->{'type'},
692: $token->[2]->{'default'},
693: $token->[2]->{'description'});
694: } elsif ($target eq 'edit') {
695: $result.=&Apache::edit::tag_start($target,$token);
696: my $optionlist;
697: my $package=&decide_package($tagstack);
698: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
699: if ($key =~ /^\Q$package\E&(.*)&display$/) {
700: $optionlist.='<option value="'.$1.'">'.
701: $Apache::lonnet::packagetab{$key}.'</option>';
702: }
703: }
704: if (defined($optionlist)) {
705: $result.=&mt('Use template:').' <select name="'.
706: &Apache::edit::html_element_name('parameter_package').'">'.
707: '<option value=""></option>'.$optionlist.'</select><br />';
708: }
709: $result.=&Apache::edit::text_arg('Name:','name',$token).
710: &Apache::edit::text_arg('Type:','type',$token).
711: &Apache::edit::text_arg('Description:','description',$token).
712: &Apache::edit::text_arg('Default:','default',$token).
713: "</td></tr>";
714: $result.=&Apache::edit::end_table;
715: } elsif ($target eq 'modified') {
716: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
717: $safeeval,'name','type',
718: 'description','default');
719: my $element=&Apache::edit::html_element_name('parameter_package');
720: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
721: my $name=$env{"form.$element"};
722: my $tag=&decide_package($tagstack);
723: $token->[2]->{'name'}=$name;
724: $token->[2]->{'type'}=
725: $Apache::lonnet::packagetab{"$tag&$name&type"};
726: $token->[2]->{'description'}=
727: $Apache::lonnet::packagetab{"$tag&$name&display"};
728: $token->[2]->{'default'}=
729: $Apache::lonnet::packagetab{"$tag&$name&default"};
730: $token->[3] = ['name','type','description','default'];
731: $constructtag=1;
732: }
733: if ($constructtag) {
734: $result = &Apache::edit::rebuild_tag($token);
735: }
736: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
737: $target eq 'tex' || $target eq 'analyze' ) {
738: if ($env{'request.state'} eq 'construct') {
739: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
740: my $default=&Apache::lonxml::get_param('default',$parstack,
741: $safeeval);
742: if ($name) {$Apache::inputtags::params{$name}=$default;}
743: }
744: }
745: return $result;
746: }
747:
748: sub end_responseparam {
749: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
750: if ($target eq 'edit') { return ('','no'); }
751: return '';
752: }
753:
754: sub start_parameter {
755: return &start_responseparam(@_);
756: }
757:
758: sub end_parameter {
759: return &end_responseparam(@_);
760: }
761:
762: sub reset_params {
763: %Apache::inputtags::params=();
764: }
765:
766: sub setup_params {
767: my ($tag,$safeeval) = @_;
768:
769: if ($env{'request.state'} eq 'construct') { return; }
770: my %paramlist=();
771: foreach my $key (keys(%Apache::lonnet::packagetab)) {
772: if ($key =~ /^\Q$tag\E/) {
773: my ($package,$name) = split(/&/,$key);
774: $paramlist{$name}=1;
775: }
776: }
777: foreach my $key (keys(%paramlist)) {
778: my $entry= 'resource.'.$Apache::inputtags::part;
779: if (defined($Apache::inputtags::response[-1])) {
780: $entry.='_'.$Apache::inputtags::response[-1];
781: }
782: $entry.='.'.$key;
783: &Apache::lonxml::debug("looking for $entry");
784: my $value = &Apache::lonnet::EXT("$entry");
785: &Apache::lonxml::debug("$key has value :$value:");
786: if ($value eq 'con_lost' || $value =~ /^error:/) {
787: &Apache::lonxml::debug("using nothing");
788: $Apache::inputtags::params{$key}='';
789: } else {
790: my $string="{return qq\0".$value."\0}";
791: my $newvalue=&Apache::run::run($string,$safeeval,1);
792: if (defined($newvalue)) { $value=$newvalue; }
793: $Apache::inputtags::params{$key}=$value;
794: }
795: }
796: }
797:
798: {
799: my @answer_bits;
800: my $need_row_start;
801:
802: sub answer_header {
803: my ($type,$increment,$rows) = @_;
804: my $result;
805: if ($env{'form.answer_output_mode'} eq 'tex') {
806: undef(@answer_bits);
807: my $bit;
808: if ($Apache::lonhomework::type eq 'exam') {
809: $bit = ($Apache::lonxml::counter+$increment).') ';
810: } else {
811: $bit .= ' Answer for Part: \verb|'.
812: $Apache::inputtags::part.'| ';
813: }
814: push(@answer_bits,$bit);
815: } else {
816: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
817: $result = '<table border="1"><tr>';
818: if ($Apache::lonhomework::type eq 'exam') {
819: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
820: } else {
821: $result .= $td.&mt('Answer for Part: [_1]',
822: $Apache::inputtags::part).'</td>';
823: }
824: $result .= "\n";
825: $need_row_start = 0;
826: }
827: return $result;
828: }
829:
830: sub next_answer {
831: my ($type) = @_;
832: my $result;
833: if ($env{'form.answer_output_mode'} eq 'tex') {
834: # FIXME ... need to do something with tex mode
835: } else {
836: $result .= "</tr>";
837: $need_row_start = 1;
838: }
839: return $result;
840: }
841:
842: sub answer_part {
843: my ($type,$answer,$args) = @_;
844: my $result;
845: if ($env{'form.answer_output_mode'} eq 'tex') {
846: if (!$args->{'no_verbatim'}) {
847: my $to_use='|';
848: foreach my $value (32..126) {
849: my $char=pack('c',$value);
850: if ($answer !~ /\Q$char\E/) {
851: $to_use=$char;
852: last;
853: }
854: }
855: my $fullanswer=$answer;
856: $answer='';
857: foreach my $element (split(/[\;]/,$fullanswer)) {
858: if ($element ne '') {
859: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
860: }
861: }
862: }
863: if ($answer ne '') {
864: push(@answer_bits,$answer);
865: }
866: } else {
867: if ($need_row_start) {
868: $result .= '<tr>';
869: $need_row_start = 0;
870: }
871: $result .= '<td>'.$answer.'</td>';
872: }
873: return $result;
874: }
875:
876: sub answer_footer {
877: my ($type) = @_;
878: my $result;
879: if ($env{'form.answer_output_mode'} eq 'tex') {
880: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
881: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
882: for (my $i=1;$i<=$#answer_bits;$i++) {
883: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
884: }
885: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
886: } else {
887: if (!$need_row_start) {
888: $result .= '</tr>';
889: }
890: $result .= '</table>';
891: }
892: return $result;
893: }
894:
895: }
896:
897: sub showallfoils {
898: if (defined($env{'form.showallfoils'})) {
899: my ($symb)=&Apache::lonnet::whichuser();
900: if (($env{'request.state'} eq 'construct') ||
901: ($env{'user.adv'} && $symb eq '') ||
902: ($Apache::lonhomework::viewgrades) ) {
903: return 1;
904: }
905: }
906: if ($Apache::lonhomework::type eq 'survey') { return 1; }
907: return 0;
908: }
909:
910: =pod
911:
912: =item &getresponse();
913:
914: Retreives the current submitted response, helps out in the case of
915: scantron mode.
916:
917: Returns either the exact text of the submission, or a bubbled response
918: converted to something usable.
919:
920: Optional Arguments:
921: $offset - (defaults to 1) if a problem has more than one bubble
922: response, pass in the number of the bubble wanted, (the
923: first bubble associated with a problem has an offset of 1,
924: the second bubble is 2
925:
926: $resulttype - undef -> a number between 0 and 25
927: 'A is 1' -> a number between 1 and 26
928: 'letter' -> a letter between 'A' and 'Z'
929: $lines - undef problem only needs a single line of bubbles.
930: nonzero Problem wants the first nonempty response in
931: $lines lines of bubbles.
932: $bubbles_per_line - Must be provided if lines is defined.. number of
933: bubbles on a line.
934:
935: =cut
936:
937: sub getresponse {
938: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
939: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
940: my $response;
941: if (!defined($offset)) {
942: $offset=1;
943: } else {
944: $formparm.=":$offset";
945: }
946: if (!defined($lines)) {
947: $lines = 1;
948: }
949: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
950: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
951: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
952: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
953: if ($env{'form.submitted'} eq 'scantron') {
954: my $part = $Apache::inputtags::part;
955: my $id = $Apache::inputtags::response[-1];
956:
957: my $line;
958: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
959: if (!$startline) {
960: $startline = $Apache::lonxml::counter;
961: }
962: for ($line = 0; $line < $lines; $line++) {
963: my $theline = $startline+$offset-1+$line;
964: $response = $env{"scantron.$theline.answer"};
965: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
966: last;
967: }
968:
969: }
970:
971: # save bubbled letter for later
972: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
973: $response;
974: if ($resulttype ne 'letter') {
975: if ($resulttype eq 'A is 1') {
976: $response = $let_to_num{$response}+1;
977: } else {
978: $response = $let_to_num{$response};
979: }
980: if ($response ne "") {
981: $response += $line * $bubbles_per_line;
982: }
983: } else {
984: if ($response ne "") {
985: $response = chr(ord($response) + $line * $bubbles_per_line);
986: }
987: }
988:
989: } else {
990: $response = $env{$formparm};
991: }
992: #
993: # If we have a nonempty answer, correct the numeric value
994: # of the answer for the line on which it was found.
995: #
996:
997: return $response;
998: }
999:
1000: =pod
1001:
1002: =item &repetition();
1003:
1004: Returns the number of lines that are required to encode the weight.
1005: (Currently expects that there are 10 bubbles per line)
1006:
1007: =cut
1008:
1009: sub repetition {
1010: my $id = $Apache::inputtags::part;
1011: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1012: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1013: my $repetition = int($weight/10);
1014: if ($weight % 10 != 0) { $repetition++; }
1015: return $repetition;
1016: }
1017:
1018: =pod
1019:
1020: =item &scored_response();
1021:
1022: Sets the results hash elements
1023:
1024: resource.$part_id.$response_id.awarded - to the floating point
1025: number between 0 and 1 that was awarded on the bubbled input
1026:
1027: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1028:
1029: Returns
1030:
1031: the number of bubble sheet lines that were used (and likely need to
1032: be passed to &Apache::lonxml::increment_counter()
1033:
1034: Arguments
1035:
1036: $part_id - id of the part to grade
1037: $response_id - id of the response to grade
1038:
1039:
1040: =cut
1041:
1042: sub scored_response {
1043: my ($part,$id)=@_;
1044: my $repetition=&repetition();
1045: my $score=0;
1046: for (my $i=0;$i<$repetition;$i++) {
1047: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1048: my $increase=&Apache::response::getresponse($i+1);
1049: if ($increase ne '') { $score+=$increase+1; }
1050: }
1051: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1052: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1053: my $pcr=$score/$weight;
1054: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1055: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1056: 'ASSIGNED_SCORE';
1057: return $repetition;
1058: }
1059:
1060: sub whichorder {
1061: my ($max,$randomize,$showall,$hash)=@_;
1062: #&Apache::lonxml::debug("man $max randomize $randomize");
1063: if (!defined(@{ $$hash{'names'} })) { return; }
1064: my @names = @{ $$hash{'names'} };
1065: my @whichopt =();
1066: my (%top,@toplist,%bottom,@bottomlist);
1067: if (!($showall || ($randomize eq 'no'))) {
1068: my $current=0;
1069: foreach my $name (@names) {
1070: $current++;
1071: if ($$hash{"$name.location"} eq 'top') {
1072: $top{$name}=$current;
1073: } elsif ($$hash{"$name.location"} eq 'bottom') {
1074: $bottom{$name}=$current;
1075: }
1076: }
1077: }
1078: my $topcount=0;
1079: my $bottomcount=0;
1080: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1081: && ($#names > -1)) {
1082: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1083: my $aopt;
1084: if ($showall || ($randomize eq 'no')) {
1085: $aopt=0;
1086: } else {
1087: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1088: }
1089: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1090: $aopt=splice(@names,$aopt,1);
1091: #&Apache::lonxml::debug("Picked $aopt");
1092: if ($top{$aopt}) {
1093: $toplist[$top{$aopt}]=$aopt;
1094: $topcount++;
1095: } elsif ($bottom{$aopt}) {
1096: $bottomlist[$bottom{$aopt}]=$aopt;
1097: $bottomcount++;
1098: } else {
1099: push (@whichopt,$aopt);
1100: }
1101: }
1102: for (my $i=0;$i<=$#toplist;$i++) {
1103: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1104: }
1105: for (my $i=0;$i<=$#bottomlist;$i++) {
1106: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1107: }
1108: return @whichopt;
1109: }
1110:
1111: sub show_answer {
1112: my $part = $Apache::inputtags::part;
1113: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1114: my $status = $Apache::inputtags::status[-1];
1115: return ( ($award =~ /^correct/
1116: && &Apache::lonhomework::show_problem_status())
1117: || $status eq "SHOW_ANSWER");
1118: }
1119:
1120: sub analyze_store_foilgroup {
1121: my ($shown,$attrs)=@_;
1122: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1123: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1124: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1125: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1126: foreach my $attr (@$attrs) {
1127: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1128: $Apache::response::foilgroup{"$name.".$attr};
1129: }
1130: }
1131: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1132: }
1133:
1134: sub check_if_computed {
1135: my ($token,$parstack,$safeeval,$name)=@_;
1136: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1137: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1138: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1139: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1140: }
1141: }
1142:
1143: sub pick_foil_for_concept {
1144: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1145: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1146: my @names = @{ $Apache::response::conceptgroup{'names'} };
1147: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1148: my $name=$names[$pick];
1149: push @{ $Apache::response::foilgroup{'names'} }, $name;
1150: foreach my $attr (@$attrs) {
1151: $Apache::response::foilgroup{"$name.".$attr} =
1152: $Apache::response::conceptgroup{"$name.".$attr};
1153: }
1154: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1155: $Apache::response::foilgroup{"$name.concept"} = $concept;
1156: &Apache::lonxml::debug("Selecting $name in $concept");
1157: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1158: if ($target eq 'analyze') {
1159: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1160: $concept);
1161: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1162: $Apache::response::conceptgroup{'names'};
1163: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1164: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1165: $name);
1166: foreach my $attr (@$attrs) {
1167: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1168: $Apache::response::conceptgroup{"$name.$attr"};
1169: }
1170: }
1171: }
1172: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1173: $hinthash->{"$part_id.concept.$concept"}=
1174: $Apache::response::conceptgroup{'names'};
1175:
1176: }
1177:
1178: =pod
1179:
1180: =item get_response_param()
1181:
1182: Get a parameter associated with a problem.
1183: Parameters:
1184: $id - the id of the paramater, either a part id,
1185: or a partid and responspe id joined by _
1186: $name - Name of the parameter to fetch
1187: $default - Default value for the paramter.
1188:
1189: =cut
1190:
1191: sub get_response_param {
1192: my ($id,$name,$default)=@_;
1193: my $parameter;
1194: if ($env{'request.state'} eq 'construct' &&
1195: defined($Apache::inputtags::params{$name})) {
1196: $parameter=$Apache::inputtags::params{$name};
1197: } else {
1198: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1199: }
1200: if (!defined($parameter) || $parameter eq '') {
1201: $parameter = $default;
1202: }
1203: return $parameter;
1204: }
1205:
1206: sub submitted {
1207: my ($who)=@_;
1208:
1209: # when scatron grading any submission is a submission
1210: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1211: # if the caller only cared if this was a scantron submission
1212: if ($who eq 'scantron') { return 0; }
1213: # if the Submit Answer button for this particular part was pressed
1214: my $partid=$Apache::inputtags::part;
1215: if ($env{'form.submitted'} eq "part_$partid") {
1216: return 1;
1217: }
1218: if ($env{'form.submitted'} eq "yes"
1219: && defined($env{'form.submit_'.$partid})) {
1220: return 1;
1221: }
1222: # Submit All button on a .page was pressed
1223: if (defined($env{'form.all_submit'})) { return 1; }
1224: # otherwise no submission occurred
1225: return 0;
1226: }
1227:
1228: sub add_to_gradingqueue {
1229: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1230: if ( $courseid eq ''
1231: || $symb eq ''
1232: || $env{'request.state'} eq 'construct'
1233: || $Apache::lonhomework::type ne 'problem') {
1234: return;
1235: }
1236:
1237: my %queue_info = ( 'type' => 'problem',
1238: 'time' => time);
1239:
1240: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1241: $queue_info{'slot'}=
1242: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1243: }
1244:
1245: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1246: if ($result ne 'ok') {
1247: &Apache::lonxml::error("add_to_queue said $result");
1248: }
1249: }
1250:
1251: =pod
1252:
1253: =item check_status()
1254:
1255: basically undef and 0 (both false) mean that they still have work to do
1256: and all true values mean that they can't do any more work
1257:
1258: a return of undef means it is unattempted
1259: a return of 0 means it is attmpted and wrong but still has tries
1260: a return of 1 means it is marked correct
1261: a return of 2 means they have exceed maximum number of tries
1262: a return of 3 means it after the answer date
1263:
1264: =cut
1265:
1266: sub check_status {
1267: my ($id)=@_;
1268: if (!defined($id)) { $id=$Apache::inputtags::part; }
1269: my $curtime=&Apache::lonnet::EXT('system.time');
1270: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1271: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1272: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1273: if ( $opendate && $curtime > $opendate &&
1274: $duedate && $curtime > $duedate &&
1275: $answerdate && $curtime > $answerdate) {
1276: return 3;
1277: }
1278: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1279: if ($status =~ /^correct/) { return 1; }
1280: if (!$status) { return undef; }
1281: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1282: if ($maxtries eq '') { $maxtries=2; }
1283: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1284: if ($curtries < $maxtries) { return 0; }
1285: return 2;
1286: }
1287:
1288: =pod
1289:
1290: =item setup_prior_tries_hash()
1291:
1292: Foreach each past .submission $func is called with 3 arguments
1293: - the mode to set things up for (currently always 'grade')
1294: - the stored .submission string
1295: - The expansion of $data
1296:
1297: $data is an array ref containing elements that are either
1298: - scalars that are other elements of the history hash to pass to $func
1299: - ref to data to be passed untouched to $func
1300:
1301: =cut
1302:
1303: sub setup_prior_tries_hash {
1304: my ($func,$data) = @_;
1305: my $part = $Apache::inputtags::part;
1306: my $id = $Apache::inputtags::response[-1];
1307: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1308: my $sub_key = "$i:resource.$part.$id.submission";
1309: next if (!exists($Apache::lonhomework::history{$sub_key}));
1310: my @other_data;
1311: foreach my $datum (@{ $data }) {
1312: if (ref($datum)) {
1313: push(@other_data,$datum);
1314: } else {
1315: my $info_key = "$i:resource.$part.$id.$datum";
1316: push(@other_data,$Apache::lonhomework::history{$info_key});
1317: }
1318: }
1319:
1320: my $output =
1321: &$func('grade',
1322: $Apache::lonhomework::history{$sub_key},
1323: \@other_data);
1324: if (defined($output)) {
1325: $Apache::inputtags::submission_display{$sub_key} = $output;
1326: }
1327: }
1328: }
1329:
1330: 1;
1331: __END__
1332:
1333: =pod
1334:
1335: =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