1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.209 2008/12/07 23:40:57 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:
58: BEGIN {
59: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
60: }
61:
62: sub start_response {
63: my ($parstack,$safeeval)=@_;
64: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
65: if ($#Apache::inputtags::import > -1) {
66: &Apache::lonxml::debug("Turning :$id: into");
67: $id = join('_',@Apache::inputtags::import).'_'.$id;
68: &Apache::lonxml::debug("New :$id:");
69: }
70: push (@Apache::inputtags::response,$id);
71: push (@Apache::inputtags::responselist,$id);
72: @Apache::inputtags::inputlist=();
73: if ($Apache::inputtags::part eq '' &&
74: !$Apache::lonhomework::ignore_response_errors) {
75: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
76: }
77: if ($Apache::inputtags::response_with_no_part &&
78: $Apache::inputtags::part ne '0') {
79: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
80: }
81: if ($Apache::inputtags::part eq '0') {
82: $Apache::inputtags::response_with_no_part=1;
83: }
84: return $id;
85: }
86:
87: sub end_response {
88: #pop @Apache::inputtags::response;
89: @Apache::inputtags::inputlist=();
90: return '';
91: }
92:
93: sub start_hintresponse {
94: my ($parstack,$safeeval)=@_;
95: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
96: push (@Apache::inputtags::hint,$id);
97: push (@Apache::inputtags::hintlist,$id);
98: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
99: return $id;
100: }
101:
102: sub end_hintresponse {
103: pop @Apache::inputtags::hint;
104: if (defined($Apache::inputtags::paramstack[-1])) {
105: %Apache::inputtags::params=
106: @{ pop(@Apache::inputtags::paramstack) };
107: }
108: return '';
109: }
110:
111: my @randomseeds;
112: sub pushrandomnumber {
113: my $rand_alg=&Apache::lonnet::get_rand_alg();
114: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
115: $rand_alg eq '64bit2') {
116: # do nothing
117: } else {
118: my @seed=&Math::Random::random_get_seed();
119: push(@randomseeds,\@seed);
120: }
121: &Apache::response::setrandomnumber(@_);
122: }
123: sub poprandomnumber {
124: my $rand_alg=&Apache::lonnet::get_rand_alg();
125: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
126: $rand_alg eq '64bit2') {
127: return;
128: }
129: my $seed=pop(@randomseeds);
130: if ($seed) {
131: &Math::Random::random_set_seed(@$seed);
132: } else {
133: &Apache::lonxml::error("Unable to restore random algorithm.");
134: }
135: }
136:
137: sub setrandomnumber {
138: my ($ignore_id2) = @_;
139: my $rndseed;
140: $rndseed=&Apache::structuretags::setup_rndseed();
141: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
142: &Apache::lonxml::debug("randseed $rndseed");
143: # $rndseed=unpack("%32i",$rndseed);
144: my $rand_alg=&Apache::lonnet::get_rand_alg();
145: my ($rndmod,$rndmod2);
146:
147: my ($id1,$id2,$shift_amt);
148: if ($Apache::lonhomework::parsing_a_problem) {
149: $id1=$Apache::inputtags::part;
150: if (defined($Apache::inputtags::response[-1])) {
151: $id2=$Apache::inputtags::response[-1];
152: }
153: $shift_amt=scalar(@Apache::inputtags::responselist);
154: } elsif ($Apache::lonhomework::parsing_a_task) {
155: $id1=&Apache::bridgetask::get_dim_id();
156: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
157: $id2=$Apache::bridgetask::instance{$id1}[-1];
158: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
159: } else {
160: $shift_amt=0;
161: }
162: }
163: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
164: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
165: $rand_alg eq '64bit2') {
166: $rndmod=(&Apache::lonnet::numval($id1) << 10);
167: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
168: } elsif ($rand_alg eq '64bit3') {
169: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
171: } elsif ($rand_alg eq '64bit4') {
172: my $shift=(4*$shift_amt)%30;
173: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
174: if (defined($id2)) {
175: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
176: }
177: } else {
178: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
179: }
180:
181: if ($rndseed =~/([,:])/) {
182: my $char=$1;
183: use integer;
184: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
185: $num1+=$rndmod;
186: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
187: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
188: $rndseed=$num1.$char.$num2;
189: } else {
190: $rndseed+=$rndmod;
191: if($Apache::lonnet::_64bit) {
192: use integer;
193: $rndseed=(($rndseed<<32)>>32);
194: }
195: }
196: &Apache::lonxml::debug("randseed $rndmod $rndseed");
197: &Apache::lonnet::setup_random_from_rndseed($rndseed);
198: return '';
199: }
200:
201: sub meta_parameter_write {
202: my ($name,$type,$default,$display)=@_;
203: my $partref=$Apache::inputtags::part;
204: my $result='<parameter part="'.$Apache::inputtags::part.'"';
205: if (defined($Apache::inputtags::response[-1])) {
206: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
207: $partref.='_'.$Apache::inputtags::response[-1];
208: }
209: $result.= ' name="'.$name.'"'.
210: ' type="'.$type.'"'.
211: (defined($default)?' default="'.$default.'"':'').
212: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
213: .'></parameter>'
214: ."\n";
215: return $result;
216: }
217:
218: sub meta_package_write {
219: my $name=shift;
220: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
221: if(defined($Apache::inputtags::response[-1])) {
222: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
223: }
224: $result.=' package="'.$name.'"></parameter>'."\n";
225: return $result;
226: }
227:
228: sub meta_stores_write {
229: my ($name,$type,$display)=@_;
230: my $partref=$Apache::inputtags::part;
231: my $result = '<stores part="'.$Apache::inputtags::part.'"';
232: if (defined($Apache::inputtags::response[-1])) {
233: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
234: $partref.='_'.$Apache::inputtags::response[-1];
235: }
236: $result.= ' name="'.$name.'"'.
237: ' type="'.$type.'"'.
238: ' display="'.$display.' [Part: '.$partref.']"'.
239: "></stores>\n";
240: }
241:
242: sub mandatory_part_meta {
243: =pod
244:
245: =item meta_part_order
246:
247: Autogenerate metadata for mandatory
248: input (from RAT or lonparmset) and
249: output (to lonspreadsheet)
250: of each part
251: #
252: return
253: &meta_parameter_write('opendate','date_start','',
254: 'Opening Date').
255: &meta_parameter_write('duedate','date_end','',
256: 'Due Date').
257: &meta_parameter_write('answerdate','date_start','',
258: 'Show Answer Date').
259: &meta_parameter_write('weight','int_zeropos','',
260: 'Available Points').
261: &meta_parameter_write('maxtries','int_pos','',
262: 'Maximum Number of Tries').
263: &meta_package_write('part').
264: &meta_stores_write('solved','string',
265: 'Problem Status').
266: &meta_stores_write('tries','int_zeropos',
267: 'Number of Attempts').
268: &meta_stores_write('awarded','float',
269: 'Partial Credit Factor');
270:
271: Note: responseid-specific data 'submission' and 'awarddetail'
272: not available to spreadsheet -> skip here
273:
274: =cut
275:
276: }
277:
278: sub meta_part_order {
279: if (@Apache::inputtags::partlist) {
280: my @parts=@Apache::inputtags::partlist;
281: shift(@parts);
282: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
283: } else {
284: return '<partorder>0</partorder>'."\n";
285: }
286: }
287:
288: sub meta_response_order {
289: if (@Apache::inputtags::responselist) {
290: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
291: '</responseorder>'."\n";
292: }
293: }
294:
295: sub check_for_previous {
296: my ($curresponse,$partid,$id,$last) = @_;
297: my %previous;
298: $previous{'used'} = 0;
299: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
300: if ($key =~ /resource\.$partid\.$id\.submission$/) {
301: if ( $last && $key =~ /^(\d+):/ ) {
302: next if ($1 >= $last);
303: }
304: &Apache::lonxml::debug("Trying $key");
305: my $pastresponse=$Apache::lonhomework::history{$key};
306: if ($pastresponse eq $curresponse) {
307: $previous{'used'} = 1;
308: my $history;
309: if ( $key =~ /^(\d+):/ ) {
310: $history=$1;
311: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
312: $previous{'last'}='0';
313: push(@{ $previous{'version'} },$history);
314: } else {
315: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
316: $previous{'last'}='1';
317: }
318: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
319: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
320: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
321: }
322: }
323: }
324: &Apache::lonhomework::showhash(%previous);
325: return %previous;
326: }
327:
328: sub handle_previous {
329: my ($previous,$ad)=@_;
330: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
331: if ($$previous{'last'}) {
332: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
333: push(@Apache::inputtags::previous_version,$$previous{'version'});
334: } elsif ($Apache::lonhomework::type ne 'survey') {
335: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
336: push(@Apache::inputtags::previous_version,$$previous{'version'});
337: }
338: }
339: }
340:
341: sub view_or_modify {
342: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
343: my $myself=0;
344: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
345: $myself=1;
346: }
347: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
348: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
349: if ($mgr) { return "M"; }
350: if ($vgr) { return "V"; }
351: if ($myself) { return "V"; }
352: return '';
353: }
354:
355: sub start_dataresponse {
356: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
357: my $id = &Apache::response::start_response($parstack,$safeeval);
358: my $result;
359: if ($target eq 'web') {
360: $result = $token->[2]->{'display'}.':';
361: } elsif ($target eq 'meta') {
362: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
363: $token->[2]->{'type'},
364: $token->[2]->{'display'});
365: $result .= &Apache::response::meta_package_write('dataresponse');
366: }
367: return $result;
368: }
369:
370: sub end_dataresponse {
371: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
372: my $result;
373: if ( $target eq 'web' ) {
374: } elsif ($target eq 'grade' ) {
375: if ( defined $env{'form.submitted'}) {
376: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
377: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
378: if ($allowed) {
379: &Apache::response::setup_params('dataresponse',$safeeval);
380: my $partid = $Apache::inputtags::part;
381: my $id = $Apache::inputtags::response['-1'];
382: my $response = $env{'form.HWVAL_'.$id};
383: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
384: if ( $response =~ /[^\s]/) {
385: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
386: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
387: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
388: }
389: } else {
390: $result='Not Permitted to change values.'
391: }
392: }
393: }
394: &Apache::response::end_response;
395: return $result;
396: }
397:
398: sub start_customresponse {
399: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
400: my $id = &Apache::response::start_response($parstack,$safeeval);
401: push(@Apache::lonxml::namespace,'customresponse');
402: my $result;
403: @Apache::response::custom_answer=();
404: @Apache::response::custom_answer_type=();
405: &Apache::lonxml::register('Apache::response',('answer'));
406: if ($target eq 'web') {
407: if ( &Apache::response::show_answer() ) {
408: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
409: $safeeval);
410: $Apache::inputtags::answertxt{$id}=[$answer];
411: }
412: } elsif ($target eq 'edit') {
413: $result.=&Apache::edit::tag_start($target,$token);
414: $result.=&Apache::edit::text_arg('String to display for answer:',
415: 'answerdisplay',$token);
416: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
417: } elsif ($target eq 'modified') {
418: my $constructtag;
419: $constructtag=&Apache::edit::get_new_args($token,$parstack,
420: $safeeval,'answerdisplay');
421: if ($constructtag) {
422: $result = &Apache::edit::rebuild_tag($token);
423: }
424: } elsif ($target eq 'answer' || $target eq 'grade') {
425: &Apache::response::reset_params();
426: } elsif ($target eq 'meta') {
427: $result .= &Apache::response::meta_package_write('customresponse');
428: }
429: return $result;
430: }
431:
432: sub end_customresponse {
433: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
434: my $result;
435: my $part=$Apache::inputtags::part;
436: my $id=$Apache::inputtags::response[-1];
437: if ( $target eq 'grade' && &Apache::response::submitted() ) {
438: my $response = &Apache::response::getresponse();
439: if ($Apache::lonhomework::type eq 'exam' ||
440: &Apache::response::submitted('scantron')) {
441: &Apache::response::scored_response($part,$id);
442: } elsif ( $response =~ /[^\s]/ &&
443: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
444: if (!$Apache::lonxml::default_homework_loaded) {
445: &Apache::lonxml::default_homework_load($safeeval);
446: }
447: my %previous = &Apache::response::check_for_previous($response,
448: $part,$id);
449: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
450: $response;
451: my $error;
452: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
453: $response;
454:
455: my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
456: if (!&Apache::inputtags::valid_award($award)) {
457: $error = $award;
458: $award = 'ERROR';
459: }
460: &Apache::response::handle_previous(\%previous,$award);
461: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
462: $award;
463: if ($error) {
464: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
465: $error;
466: }
467: }
468: } elsif ( $target eq 'answer') {
469: $result = &Apache::response::answer_header('customresponse');
470: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
471: $safeeval);
472: if ($env{'form.answer_output_mode'} ne 'tex') {
473: $answer = '<b>'.$answer.'</b>';
474: }
475: $result .= &Apache::response::answer_part('customresponse',$answer);
476: $result .= &Apache::response::answer_footer('customresponse');
477: }
478: if ($target eq 'web') {
479: &setup_prior_tries_hash(\&format_prior_response_math);
480: }
481: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
482: $target eq 'tex' || $target eq 'analyze') {
483: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
484: "$part.$id");
485: if ($target eq 'analyze') {
486: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
487: &Apache::lonhomework::set_bubble_lines();
488: }
489: }
490: pop(@Apache::lonxml::namespace);
491: pop(@Apache::response::custom_answer);
492: pop(@Apache::response::custom_answer_type);
493: &Apache::lonxml::deregister('Apache::response',('answer'));
494: &Apache::response::end_response();
495: return $result;
496: }
497:
498: sub format_prior_response_custom {
499: my ($mode,$answer) =@_;
500: return '<span class="LC_prior_custom">'.
501: &HTML::Entities::encode($answer,'"<>&').'</span>';
502: }
503:
504: sub start_mathresponse {
505: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
506: my $id = &Apache::response::start_response($parstack,$safeeval);
507: push(@Apache::lonxml::namespace,'mathresponse');
508: my $result;
509: @Apache::response::custom_answer=();
510: @Apache::response::custom_answer_type=();
511: &Apache::lonxml::register('Apache::response',('answer'));
512: if ($target eq 'web') {
513: if ( &Apache::response::show_answer() ) {
514: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
515: $safeeval);
516: $Apache::inputtags::answertxt{$id}=[$answer];
517: }
518:
519: } elsif ($target eq 'edit') {
520: $result.=&Apache::edit::tag_start($target,$token);
521: $result.=&Apache::edit::text_arg('String to display for answer:',
522: 'answerdisplay',$token);
523: $result.=&Apache::edit::select_arg('Algebra System:',
524: 'cas',
525: ['maxima'],
526: $token);
527: $result.=&Apache::edit::text_arg('Argument Array:',
528: 'args',$token).
529: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
530: $result.=&Apache::edit::text_arg('Libraries:',
531: 'libraries',$token).
532: &Apache::loncommon::help_open_topic('Maxima_Libraries');
533: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
534: } elsif ($target eq 'modified') {
535: my $constructtag;
536: $constructtag=&Apache::edit::get_new_args($token,$parstack,
537: $safeeval,'answerdisplay','cas','args','libraries');
538: if ($constructtag) {
539: $result = &Apache::edit::rebuild_tag($token);
540: }
541: } elsif ($target eq 'answer' || $target eq 'grade') {
542: &Apache::response::reset_params();
543: } elsif ($target eq 'meta') {
544: $result .= &Apache::response::meta_package_write('mathresponse');
545: }
546: return $result;
547: }
548:
549: sub edit_mathresponse_button {
550: my ($id,$field)=@_;
551: my $button=&mt('Edit Answer');
552: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
553: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
554: return(<<ENDFORMULABUTTON);
555: <script language="JavaScript">
556: function edit_${id}_${field} (textarea) {
557: thenumber = textarea;
558: thedata = document.forms['lonhomework'].elements[textarea].value;
559: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
560: }
561: </script>
562: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$button' title='$button'/></a>
563: ENDFORMULABUTTON
564: }
565:
566: sub end_mathresponse {
567: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
568: my $result;
569: my $part=$Apache::inputtags::part;
570: my $id=$Apache::inputtags::response[-1];
571: if ( $target eq 'grade' && &Apache::response::submitted() ) {
572: my $response = &Apache::response::getresponse();
573: if ( $response =~ /[^\s]/ ) {
574: if (!$Apache::lonxml::default_homework_loaded) {
575: &Apache::lonxml::default_homework_load($safeeval);
576: }
577: my %previous = &Apache::response::check_for_previous($response,
578: $part,$id);
579: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
580: $response;
581: my $error;
582: my $award;
583: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
584: if ($cas eq 'maxima') {
585: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
586: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
587: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
588: }
589: if (!&Apache::inputtags::valid_award($award)) {
590: $error = $award;
591: $award = 'ERROR';
592: }
593: &Apache::response::handle_previous(\%previous,$award);
594: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
595: $award;
596: if ($error) {
597: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
598: $error;
599: }
600: }
601: }
602: if ($target eq 'web') {
603: &setup_prior_tries_hash(\&format_prior_response_math);
604: my $partid = $Apache::inputtags::part;
605: my $id = $Apache::inputtags::response[-1];
606: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
607: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
608: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
609: }
610: }
611:
612: pop(@Apache::lonxml::namespace);
613: pop(@Apache::response::custom_answer);
614: pop(@Apache::response::custom_answer_type);
615: &Apache::lonxml::deregister('Apache::response',('answer'));
616: &Apache::response::end_response();
617: return $result;
618: }
619:
620: sub format_prior_response_math {
621: my ($mode,$answer) =@_;
622: return '<span class="LC_prior_math">'.
623: &HTML::Entities::encode($answer,'"<>&').'</span>';
624: }
625:
626: sub implicit_multiplication {
627: my ($expression)=@_;
628: # Escape scientific notation, so 3e8 does not become 3*e*8
629: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
630: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
631: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
632: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
633: # Fill in multiplication signs
634: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
635: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
636: # )( -> )*(; ) ( -> )*(
637: $expression=~s/\)\s*\(/\)\*\(/gs;
638: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
639: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
640: # a ( -> a*(
641: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
642: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
643: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
644: # 3&8 -> 3e8; 3&-4 -> 3e-4
645: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
646: return $expression;
647: }
648:
649: sub start_answer {
650: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
651: my $result;
652: push(@Apache::response::custom_answer,
653: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
654: push(@Apache::response::custom_answer_type,
655: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
656: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
657: if ($target eq "edit" ) {
658: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
659: $result.=&Apache::edit::editfield($token->[1],
660: $Apache::response::custom_answer[-1],
661: '',80,4);
662: } elsif ( $target eq "modified" ) {
663: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
664: }
665: return $result;
666: }
667:
668: sub end_answer {
669: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
670: if ($target eq 'edit' ) {
671: return &Apache::edit::end_table();
672: }
673: }
674:
675: sub decide_package {
676: my ($tagstack)=@_;
677: my $package;
678: if ($$tagstack[-1] eq 'parameter') {
679: $package='part';
680: } else {
681: my $i=-1;
682: while (defined($$tagstack[$i])) {
683: if ($$tagstack[$i] =~ /(response|hint)$/) {
684: $package=$$tagstack[$i];
685: last;
686: }
687: $i--;
688: }
689: }
690: return $package;
691: }
692:
693: sub start_responseparam {
694: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
695: my $result='';
696: if ($target eq 'meta') {
697: $result = &meta_parameter_write($token->[2]->{'name'},
698: $token->[2]->{'type'},
699: $token->[2]->{'default'},
700: $token->[2]->{'description'});
701: } elsif ($target eq 'edit') {
702: $result.=&Apache::edit::tag_start($target,$token);
703: my $optionlist;
704: my $package=&decide_package($tagstack);
705: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
706: if ($key =~ /^\Q$package\E&(.*)&display$/) {
707: $optionlist.='<option value="'.$1.'">'.
708: $Apache::lonnet::packagetab{$key}.'</option>';
709: }
710: }
711: if (defined($optionlist)) {
712: $result.=&mt('Use template:').' <select name="'.
713: &Apache::edit::html_element_name('parameter_package').'">'.
714: '<option value=""></option>'.$optionlist.'</select><br />';
715: }
716: $result.=&Apache::edit::text_arg('Name:','name',$token).
717: &Apache::edit::text_arg('Type:','type',$token).
718: &Apache::edit::text_arg('Description:','description',$token).
719: &Apache::edit::text_arg('Default:','default',$token).
720: "</td></tr>";
721: $result.=&Apache::edit::end_table;
722: } elsif ($target eq 'modified') {
723: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
724: $safeeval,'name','type',
725: 'description','default');
726: my $element=&Apache::edit::html_element_name('parameter_package');
727: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
728: my $name=$env{"form.$element"};
729: my $tag=&decide_package($tagstack);
730: $token->[2]->{'name'}=$name;
731: $token->[2]->{'type'}=
732: $Apache::lonnet::packagetab{"$tag&$name&type"};
733: $token->[2]->{'description'}=
734: $Apache::lonnet::packagetab{"$tag&$name&display"};
735: $token->[2]->{'default'}=
736: $Apache::lonnet::packagetab{"$tag&$name&default"};
737: $token->[3] = ['name','type','description','default'];
738: $constructtag=1;
739: }
740: if ($constructtag) {
741: $result = &Apache::edit::rebuild_tag($token);
742: }
743: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
744: $target eq 'tex' || $target eq 'analyze' ) {
745: if ($env{'request.state'} eq 'construct') {
746: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
747: my $default=&Apache::lonxml::get_param('default',$parstack,
748: $safeeval);
749: if ($name) {$Apache::inputtags::params{$name}=$default;}
750: }
751: }
752: return $result;
753: }
754:
755: sub end_responseparam {
756: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
757: if ($target eq 'edit') { return ('','no'); }
758: return '';
759: }
760:
761: sub start_parameter {
762: return &start_responseparam(@_);
763: }
764:
765: sub end_parameter {
766: return &end_responseparam(@_);
767: }
768:
769: sub reset_params {
770: %Apache::inputtags::params=();
771: }
772:
773: sub setup_params {
774: my ($tag,$safeeval) = @_;
775:
776: if ($env{'request.state'} eq 'construct') { return; }
777: my %paramlist=();
778: foreach my $key (keys(%Apache::lonnet::packagetab)) {
779: if ($key =~ /^\Q$tag\E/) {
780: my ($package,$name) = split(/&/,$key);
781: $paramlist{$name}=1;
782: }
783: }
784: foreach my $key (keys(%paramlist)) {
785: my $entry= 'resource.'.$Apache::inputtags::part;
786: if (defined($Apache::inputtags::response[-1])) {
787: $entry.='_'.$Apache::inputtags::response[-1];
788: }
789: $entry.='.'.$key;
790: &Apache::lonxml::debug("looking for $entry");
791: my $value = &Apache::lonnet::EXT("$entry");
792: &Apache::lonxml::debug("$key has value :$value:");
793: if ($value eq 'con_lost' || $value =~ /^error:/) {
794: &Apache::lonxml::debug("using nothing");
795: $Apache::inputtags::params{$key}='';
796: } else {
797: my $string="{return qq\0".$value."\0}";
798: my $newvalue=&Apache::run::run($string,$safeeval,1);
799: if (defined($newvalue)) { $value=$newvalue; }
800: $Apache::inputtags::params{$key}=$value;
801: }
802: }
803: }
804:
805: {
806: my @answer_bits;
807: my $need_row_start;
808:
809: sub answer_header {
810: my ($type,$increment,$rows) = @_;
811: my $result;
812: if ($env{'form.answer_output_mode'} eq 'tex') {
813: undef(@answer_bits);
814: my $bit;
815: if ($Apache::lonhomework::type eq 'exam') {
816: $bit = ($Apache::lonxml::counter+$increment).') ';
817: } else {
818: $bit .= ' Answer for Part: \verb|'.
819: $Apache::inputtags::part.'| ';
820: }
821: push(@answer_bits,$bit);
822: } else {
823: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
824: $result = '<table border="1"><tr>';
825: if ($Apache::lonhomework::type eq 'exam') {
826: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
827: } else {
828: $result .= $td.&mt('Answer for Part: [_1]',
829: $Apache::inputtags::part).'</td>';
830: }
831: $result .= "\n";
832: $need_row_start = 0;
833: }
834: return $result;
835: }
836:
837: sub next_answer {
838: my ($type) = @_;
839: my $result;
840: if ($env{'form.answer_output_mode'} eq 'tex') {
841: # FIXME ... need to do something with tex mode
842: } else {
843: $result .= "</tr>";
844: $need_row_start = 1;
845: }
846: return $result;
847: }
848:
849: sub answer_part {
850: my ($type,$answer,$args) = @_;
851: my $result;
852: if ($env{'form.answer_output_mode'} eq 'tex') {
853: if (!$args->{'no_verbatim'}) {
854: my $to_use='|';
855: foreach my $value (32..126) {
856: my $char=pack('c',$value);
857: if ($answer !~ /\Q$char\E/) {
858: $to_use=$char;
859: last;
860: }
861: }
862: my $fullanswer=$answer;
863: $answer='';
864: foreach my $element (split(/[\;]/,$fullanswer)) {
865: if ($element ne '') {
866: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
867: }
868: }
869: }
870: if ($answer ne '') {
871: push(@answer_bits,$answer);
872: }
873: } else {
874: if ($need_row_start) {
875: $result .= '<tr>';
876: $need_row_start = 0;
877: }
878: $result .= '<td>'.$answer.'</td>';
879: }
880: return $result;
881: }
882:
883: sub answer_footer {
884: my ($type) = @_;
885: my $result;
886: if ($env{'form.answer_output_mode'} eq 'tex') {
887: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
888: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
889: for (my $i=1;$i<=$#answer_bits;$i++) {
890: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
891: }
892: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
893: } else {
894: if (!$need_row_start) {
895: $result .= '</tr>';
896: }
897: $result .= '</table>';
898: }
899: return $result;
900: }
901:
902: }
903:
904: sub showallfoils {
905: if (defined($env{'form.showallfoils'})) {
906: my ($symb)=&Apache::lonnet::whichuser();
907: if (($env{'request.state'} eq 'construct') ||
908: ($env{'user.adv'} && $symb eq '') ||
909: ($Apache::lonhomework::viewgrades) ) {
910: return 1;
911: }
912: }
913: if ($Apache::lonhomework::type eq 'survey') { return 1; }
914: return 0;
915: }
916:
917: =pod
918:
919: =item &getresponse($offset,$resulttype);
920:
921: Retreives the current submitted response, helps out in the case of
922: scantron mode.
923:
924: Returns either the exact text of the submission, or a bubbled response
925: converted to something usable.
926:
927: Optional Arguments:
928: $offset - (defaults to 1) if a problem has more than one bubble
929: response, pass in the number of the bubble wanted, (the
930: first bubble associated with a problem has an offset of 1,
931: the second bubble is 2
932:
933: $resulttype - undef -> a number between 0 and 25
934: 'A is 1' -> a number between 1 and 26
935: 'letter' -> a letter between 'A' and 'Z'
936: $lines - undef problem only needs a single line of bubbles.
937: nonzero Problem wants the first nonempty response in
938: $lines lines of bubbles.
939: $bubbles_per_line - Must be provided if lines is defined.. number of
940: bubbles on a line.
941:
942: =cut
943:
944: sub getresponse {
945: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
946: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
947: my $response;
948: if (!defined($offset)) {
949: $offset=1;
950: } else {
951: $formparm.=":$offset";
952: }
953: if (!defined($lines)) {
954: $lines = 1;
955: }
956: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
957: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
958: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
959: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
960: if ($env{'form.submitted'} eq 'scantron') {
961: my $part = $Apache::inputtags::part;
962: my $id = $Apache::inputtags::response[-1];
963:
964: my $line;
965: for ($line = 0; $line < $lines; $line++) {
966: my $theline = $Apache::lonxml::counter+$offset-1+$line;
967: $response = $env{"scantron.$theline.answer"};
968: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
969: last;
970: }
971:
972: }
973:
974: # save bubbled letter for later
975: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
976: $response;
977: if ($resulttype ne 'letter') {
978: if ($resulttype eq 'A is 1') {
979: $response = $let_to_num{$response}+1;
980: } else {
981: $response = $let_to_num{$response};
982: }
983: if ($response ne "") {
984: $response += $line * $bubbles_per_line;
985: }
986: } else {
987: if ($response ne "") {
988: $response = chr(ord($response) + $line * $bubbles_per_line);
989: }
990: }
991:
992: } else {
993: $response = $env{$formparm};
994: }
995: #
996: # If we have a nonempty answer, correct the numeric value
997: # of the answer for the line on which it was found.
998: #
999:
1000: return $response;
1001: }
1002:
1003: =pod
1004:
1005: =item &repetition();
1006:
1007: Returns the number of lines that are required to encode the weight.
1008: (Currently expects that there are 10 bubbles per line)
1009:
1010: =cut
1011:
1012: sub repetition {
1013: my $id = $Apache::inputtags::part;
1014: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1015: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1016: my $repetition = int($weight/10);
1017: if ($weight % 10 != 0) { $repetition++; }
1018: return $repetition;
1019: }
1020:
1021: =pod
1022:
1023: =item &scored_response($part_id,$response_id);
1024:
1025: Sets the results hash elements
1026:
1027: resource.$part_id.$response_id.awarded - to the floating point
1028: number between 0 and 1 that was awarded on the bubbled input
1029:
1030: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1031:
1032: Returns
1033:
1034: the number of bubble sheet lines that were used (and likely need to
1035: be passed to &Apache::lonxml::increment_counter()
1036:
1037: Arguments
1038:
1039: $part_id - id of the part to grade
1040: $response_id - id of the response to grade
1041:
1042:
1043: =cut
1044:
1045: sub scored_response {
1046: my ($part,$id)=@_;
1047: my $repetition=&repetition();
1048: my $score=0;
1049: for (my $i=0;$i<$repetition;$i++) {
1050: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1051: my $increase=&Apache::response::getresponse($i+1);
1052: if ($increase ne '') { $score+=$increase+1; }
1053: }
1054: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1055: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1056: my $pcr=$score/$weight;
1057: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1058: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1059: 'ASSIGNED_SCORE';
1060: return $repetition;
1061: }
1062:
1063: sub whichorder {
1064: my ($max,$randomize,$showall,$hash)=@_;
1065: #&Apache::lonxml::debug("man $max randomize $randomize");
1066: if (!defined(@{ $$hash{'names'} })) { return; }
1067: my @names = @{ $$hash{'names'} };
1068: my @whichopt =();
1069: my (%top,@toplist,%bottom,@bottomlist);
1070: if (!($showall || ($randomize eq 'no'))) {
1071: my $current=0;
1072: foreach my $name (@names) {
1073: $current++;
1074: if ($$hash{"$name.location"} eq 'top') {
1075: $top{$name}=$current;
1076: } elsif ($$hash{"$name.location"} eq 'bottom') {
1077: $bottom{$name}=$current;
1078: }
1079: }
1080: }
1081: my $topcount=0;
1082: my $bottomcount=0;
1083: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1084: && ($#names > -1)) {
1085: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1086: my $aopt;
1087: if ($showall || ($randomize eq 'no')) {
1088: $aopt=0;
1089: } else {
1090: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1091: }
1092: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1093: $aopt=splice(@names,$aopt,1);
1094: #&Apache::lonxml::debug("Picked $aopt");
1095: if ($top{$aopt}) {
1096: $toplist[$top{$aopt}]=$aopt;
1097: $topcount++;
1098: } elsif ($bottom{$aopt}) {
1099: $bottomlist[$bottom{$aopt}]=$aopt;
1100: $bottomcount++;
1101: } else {
1102: push (@whichopt,$aopt);
1103: }
1104: }
1105: for (my $i=0;$i<=$#toplist;$i++) {
1106: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1107: }
1108: for (my $i=0;$i<=$#bottomlist;$i++) {
1109: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1110: }
1111: return @whichopt;
1112: }
1113:
1114: sub show_answer {
1115: my $part = $Apache::inputtags::part;
1116: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1117: my $status = $Apache::inputtags::status[-1];
1118: return ( ($award =~ /^correct/
1119: && &Apache::lonhomework::show_problem_status())
1120: || $status eq "SHOW_ANSWER");
1121: }
1122:
1123: sub analyze_store_foilgroup {
1124: my ($shown,$attrs)=@_;
1125: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1126: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1127: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1128: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1129: foreach my $attr (@$attrs) {
1130: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1131: $Apache::response::foilgroup{"$name.".$attr};
1132: }
1133: }
1134: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1135: }
1136:
1137: sub check_if_computed {
1138: my ($token,$parstack,$safeeval,$name)=@_;
1139: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1140: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1141: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1142: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1143: }
1144: }
1145:
1146: sub pick_foil_for_concept {
1147: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1148: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1149: my @names = @{ $Apache::response::conceptgroup{'names'} };
1150: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1151: my $name=$names[$pick];
1152: push @{ $Apache::response::foilgroup{'names'} }, $name;
1153: foreach my $attr (@$attrs) {
1154: $Apache::response::foilgroup{"$name.".$attr} =
1155: $Apache::response::conceptgroup{"$name.".$attr};
1156: }
1157: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1158: $Apache::response::foilgroup{"$name.concept"} = $concept;
1159: &Apache::lonxml::debug("Selecting $name in $concept");
1160: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1161: if ($target eq 'analyze') {
1162: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1163: $concept);
1164: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1165: $Apache::response::conceptgroup{'names'};
1166: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1167: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1168: $name);
1169: foreach my $attr (@$attrs) {
1170: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1171: $Apache::response::conceptgroup{"$name.$attr"};
1172: }
1173: }
1174: }
1175: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1176: $hinthash->{"$part_id.concept.$concept"}=
1177: $Apache::response::conceptgroup{'names'};
1178:
1179: }
1180:
1181: =pod
1182:
1183: =item get_response_param()
1184:
1185: Get a parameter associated with a problem.
1186: Parameters:
1187: $id - the id of the paramater, either a part id,
1188: or a partid and responspe id joined by _
1189: $name - Name of the parameter to fetch
1190: $default - Default value for the paramter.
1191:
1192: =cut
1193:
1194: sub get_response_param {
1195: my ($id,$name,$default)=@_;
1196: my $parameter;
1197: if ($env{'request.state'} eq 'construct' &&
1198: defined($Apache::inputtags::params{$name})) {
1199: $parameter=$Apache::inputtags::params{$name};
1200: } else {
1201: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1202: }
1203: if (!defined($parameter) || $parameter eq '') {
1204: $parameter = $default;
1205: }
1206: return $parameter;
1207: }
1208:
1209: sub submitted {
1210: my ($who)=@_;
1211:
1212: # when scatron grading any submission is a submission
1213: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1214: # if the caller only cared if this was a scantron submission
1215: if ($who eq 'scantron') { return 0; }
1216: # if the Submit Answer button for this particular part was pressed
1217: my $partid=$Apache::inputtags::part;
1218: if ($env{'form.submitted'} eq "part_$partid") {
1219: return 1;
1220: }
1221: if ($env{'form.submitted'} eq "yes"
1222: && defined($env{'form.submit_'.$partid})) {
1223: return 1;
1224: }
1225: # Submit All button on a .page was pressed
1226: if (defined($env{'form.all_submit'})) { return 1; }
1227: # otherwise no submission occurred
1228: return 0;
1229: }
1230:
1231: sub add_to_gradingqueue {
1232: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1233: if ( $courseid eq ''
1234: || $symb eq ''
1235: || $env{'request.state'} eq 'construct'
1236: || $Apache::lonhomework::type ne 'problem') {
1237: return;
1238: }
1239:
1240: my %queue_info = ( 'type' => 'problem',
1241: 'time' => time);
1242:
1243: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1244: $queue_info{'slot'}=
1245: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1246: }
1247:
1248: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1249: if ($result ne 'ok') {
1250: &Apache::lonxml::error("add_to_queue said $result");
1251: }
1252: }
1253:
1254: =pod
1255:
1256: =item check_status()
1257:
1258: basically undef and 0 (both false) mean that they still have work to do
1259: and all true values mean that they can't do any more work
1260:
1261: a return of undef means it is unattempted
1262: a return of 0 means it is attmpted and wrong but still has tries
1263: a return of 1 means it is marked correct
1264: a return of 2 means they have exceed maximum number of tries
1265: a return of 3 means it after the answer date
1266:
1267: =cut
1268:
1269: sub check_status {
1270: my ($id)=@_;
1271: if (!defined($id)) { $id=$Apache::inputtags::part; }
1272: my $curtime=&Apache::lonnet::EXT('system.time');
1273: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1274: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1275: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1276: if ( $opendate && $curtime > $opendate &&
1277: $duedate && $curtime > $duedate &&
1278: $answerdate && $curtime > $answerdate) {
1279: return 3;
1280: }
1281: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1282: if ($status =~ /^correct/) { return 1; }
1283: if (!$status) { return undef; }
1284: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1285: if ($maxtries eq '') { $maxtries=2; }
1286: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1287: if ($curtries < $maxtries) { return 0; }
1288: return 2;
1289: }
1290:
1291: =pod
1292:
1293: =item setup_prior_tries_hash($func,$data)
1294:
1295: Foreach each past .submission $func is called with 3 arguments
1296: - the mode to set things up for (currently always 'grade')
1297: - the stored .submission string
1298: - The expansion of $data
1299:
1300: $data is an array ref containing elements that are either
1301: - scalars that are other elements of the history hash to pass to $func
1302: - ref to data to be passed untouched to $func
1303:
1304: =cut
1305:
1306: sub setup_prior_tries_hash {
1307: my ($func,$data) = @_;
1308: my $part = $Apache::inputtags::part;
1309: my $id = $Apache::inputtags::response[-1];
1310: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1311: my $sub_key = "$i:resource.$part.$id.submission";
1312: next if (!exists($Apache::lonhomework::history{$sub_key}));
1313: my @other_data;
1314: foreach my $datum (@{ $data }) {
1315: if (ref($datum)) {
1316: push(@other_data,$datum);
1317: } else {
1318: my $info_key = "$i:resource.$part.$id.$datum";
1319: push(@other_data,$Apache::lonhomework::history{$info_key});
1320: }
1321: }
1322:
1323: my $output =
1324: &$func('grade',
1325: $Apache::lonhomework::history{$sub_key},
1326: \@other_data);
1327: if (defined($output)) {
1328: $Apache::inputtags::submission_display{$sub_key} = $output;
1329: }
1330: }
1331: }
1332:
1333: 1;
1334: __END__
1335:
1336: =pod
1337:
1338: =back
1339:
1340: =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