File:
[LON-CAPA] /
loncom /
homework /
response.pm
Revision
1.216:
download - view:
text,
annotated -
select for diffs
Sun May 24 13:08:18 2009 UTC (14 years, 11 months ago) by
www
Branches:
MAIN
CVS tags:
version_2_9_X,
version_2_9_99_0,
version_2_9_1,
version_2_9_0,
version_2_8_99_1,
version_2_8_99_0,
bz6209-base,
bz6209,
bz5969,
bz2851,
HEAD,
GCI_3,
GCI_2,
BZ5971-printing-apage
Bug #2802: partial credit multiple answers
1: # The LearningOnline Network with CAPA
2: # various response type definitons response definition
3: #
4: # $Id: response.pm,v 1.216 2009/05/24 13:08:18 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,$score) = &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: $award;
450: if ($award eq 'ASSIGNED_SCORE') {
451: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
452: }
453: if ($error) {
454: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
455: $error;
456: }
457: }
458: } elsif ( $target eq 'answer') {
459: $result = &Apache::response::answer_header('customresponse');
460: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
461: $safeeval);
462: if ($env{'form.answer_output_mode'} ne 'tex') {
463: $answer = '<b>'.$answer.'</b>';
464: }
465: $result .= &Apache::response::answer_part('customresponse',$answer);
466: $result .= &Apache::response::answer_footer('customresponse');
467: }
468: if ($target eq 'web') {
469: &setup_prior_tries_hash(\&format_prior_response_math);
470: }
471: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
472: $target eq 'tex' || $target eq 'analyze') {
473: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
474: "$part.$id");
475: if ($target eq 'analyze') {
476: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
477: &Apache::lonhomework::set_bubble_lines();
478: }
479: }
480: pop(@Apache::lonxml::namespace);
481: pop(@Apache::response::custom_answer);
482: pop(@Apache::response::custom_answer_type);
483: &Apache::lonxml::deregister('Apache::response',('answer'));
484: &Apache::response::end_response();
485: return $result;
486: }
487:
488: sub format_prior_response_custom {
489: my ($mode,$answer) =@_;
490: return '<span class="LC_prior_custom">'.
491: &HTML::Entities::encode($answer,'"<>&').'</span>';
492: }
493:
494: sub start_mathresponse {
495: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
496: my $id = &Apache::response::start_response($parstack,$safeeval);
497: push(@Apache::lonxml::namespace,'mathresponse');
498: my $result;
499: @Apache::response::custom_answer=();
500: @Apache::response::custom_answer_type=();
501: &Apache::lonxml::register('Apache::response',('answer'));
502: if ($target eq 'web') {
503: if ( &Apache::response::show_answer() ) {
504: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
505: $safeeval);
506: $Apache::inputtags::answertxt{$id}=[$answer];
507: }
508:
509: } elsif ($target eq 'edit') {
510: $result.=&Apache::edit::tag_start($target,$token);
511: $result.=&Apache::edit::text_arg('String to display for answer:',
512: 'answerdisplay',$token);
513: $result.=&Apache::edit::select_arg('Algebra System:',
514: 'cas',
515: ['maxima','R'],
516: $token);
517: $result.=&Apache::edit::text_arg('Argument Array:',
518: 'args',$token).
519: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
520: $result.=&Apache::edit::text_arg('Libraries:',
521: 'libraries',$token).
522: &Apache::loncommon::help_open_topic('Maxima_Libraries');
523: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
524: } elsif ($target eq 'modified') {
525: my $constructtag;
526: $constructtag=&Apache::edit::get_new_args($token,$parstack,
527: $safeeval,'answerdisplay','cas','args','libraries');
528: if ($constructtag) {
529: $result = &Apache::edit::rebuild_tag($token);
530: }
531: } elsif ($target eq 'answer' || $target eq 'grade') {
532: &Apache::response::reset_params();
533: } elsif ($target eq 'meta') {
534: $result .= &Apache::response::meta_package_write('mathresponse');
535: }
536: return $result;
537: }
538:
539: sub edit_mathresponse_button {
540: my ($id,$field)=@_;
541: my $button=&mt('Edit Answer');
542: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
543: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
544: return(<<ENDFORMULABUTTON);
545: <script type="text/javascript" language="JavaScript">
546: function edit_${id}_${field} (textarea) {
547: thenumber = textarea;
548: thedata = document.forms['lonhomework'].elements[textarea].value;
549: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
550: }
551: </script>
552: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
553: ENDFORMULABUTTON
554: }
555:
556: sub end_mathresponse {
557: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
558: my $result;
559: my $part=$Apache::inputtags::part;
560: my $id=$Apache::inputtags::response[-1];
561: if ( $target eq 'grade' && &Apache::response::submitted() ) {
562: my $response = &Apache::response::getresponse();
563: if ( $response =~ /[^\s]/ ) {
564: if (!$Apache::lonxml::default_homework_loaded) {
565: &Apache::lonxml::default_homework_load($safeeval);
566: }
567: my %previous = &Apache::response::check_for_previous($response,
568: $part,$id);
569: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
570: $response;
571: my $error;
572: my $award;
573: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
574: if ($cas eq 'maxima') {
575: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
576: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
577: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
578: }
579: if ($cas eq 'R') {
580: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
581: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
582: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
583: }
584:
585: if (!&Apache::inputtags::valid_award($award)) {
586: $error = $award;
587: $award = 'ERROR';
588: }
589: &Apache::response::handle_previous(\%previous,$award);
590: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
591: $award;
592: if ($error) {
593: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
594: $error;
595: }
596: }
597: }
598: if ($target eq 'web') {
599: &setup_prior_tries_hash(\&format_prior_response_math);
600: my $partid = $Apache::inputtags::part;
601: my $id = $Apache::inputtags::response[-1];
602: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
603: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
604: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
605: }
606: }
607:
608: pop(@Apache::lonxml::namespace);
609: pop(@Apache::response::custom_answer);
610: pop(@Apache::response::custom_answer_type);
611: &Apache::lonxml::deregister('Apache::response',('answer'));
612: &Apache::response::end_response();
613: return $result;
614: }
615:
616: sub format_prior_response_math {
617: my ($mode,$answer) =@_;
618: return '<span class="LC_prior_math">'.
619: &HTML::Entities::encode($answer,'"<>&').'</span>';
620: }
621:
622: sub implicit_multiplication {
623: my ($expression)=@_;
624: # Escape scientific notation, so 3e8 does not become 3*e*8
625: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
626: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
627: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
628: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
629: # Fill in multiplication signs
630: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
631: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
632: # )( -> )*(; ) ( -> )*(
633: $expression=~s/\)\s*\(/\)\*\(/gs;
634: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
635: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
636: # a ( -> a*(
637: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
638: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
639: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
640: # 3&8 -> 3e8; 3&-4 -> 3e-4
641: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
642: return $expression;
643: }
644:
645: sub start_answer {
646: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
647: my $result;
648: push(@Apache::response::custom_answer,
649: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
650: push(@Apache::response::custom_answer_type,
651: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
652: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
653: if ($target eq "edit" ) {
654: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
655: $result.=&Apache::edit::editfield($token->[1],
656: $Apache::response::custom_answer[-1],
657: '',80,4);
658: } elsif ( $target eq "modified" ) {
659: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
660: }
661: return $result;
662: }
663:
664: sub end_answer {
665: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
666: if ($target eq 'edit' ) {
667: return &Apache::edit::end_table();
668: }
669: }
670:
671: sub decide_package {
672: my ($tagstack)=@_;
673: my $package;
674: if ($$tagstack[-1] eq 'parameter') {
675: $package='part';
676: } else {
677: my $i=-1;
678: while (defined($$tagstack[$i])) {
679: if ($$tagstack[$i] =~ /(response|hint)$/) {
680: $package=$$tagstack[$i];
681: last;
682: }
683: $i--;
684: }
685: }
686: return $package;
687: }
688:
689: sub start_responseparam {
690: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
691: my $result='';
692: if ($target eq 'meta') {
693: $result = &meta_parameter_write($token->[2]->{'name'},
694: $token->[2]->{'type'},
695: $token->[2]->{'default'},
696: $token->[2]->{'description'});
697: } elsif ($target eq 'edit') {
698: $result.=&Apache::edit::tag_start($target,$token);
699: my $optionlist;
700: my $package=&decide_package($tagstack);
701: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
702: if ($key =~ /^\Q$package\E&(.*)&display$/) {
703: $optionlist.='<option value="'.$1.'">'.
704: $Apache::lonnet::packagetab{$key}.'</option>';
705: }
706: }
707: if (defined($optionlist)) {
708: $result.=&mt('Use template:').' <select name="'.
709: &Apache::edit::html_element_name('parameter_package').'">'.
710: '<option value=""></option>'.$optionlist.'</select><br />';
711: }
712: $result.=&Apache::edit::text_arg('Name:','name',$token).
713: &Apache::edit::text_arg('Type:','type',$token).
714: &Apache::edit::text_arg('Description:','description',$token).
715: &Apache::edit::text_arg('Default:','default',$token).
716: "</td></tr>";
717: $result.=&Apache::edit::end_table;
718: } elsif ($target eq 'modified') {
719: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
720: $safeeval,'name','type',
721: 'description','default');
722: my $element=&Apache::edit::html_element_name('parameter_package');
723: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
724: my $name=$env{"form.$element"};
725: my $tag=&decide_package($tagstack);
726: $token->[2]->{'name'}=$name;
727: $token->[2]->{'type'}=
728: $Apache::lonnet::packagetab{"$tag&$name&type"};
729: $token->[2]->{'description'}=
730: $Apache::lonnet::packagetab{"$tag&$name&display"};
731: $token->[2]->{'default'}=
732: $Apache::lonnet::packagetab{"$tag&$name&default"};
733: $token->[3] = ['name','type','description','default'];
734: $constructtag=1;
735: }
736: if ($constructtag) {
737: $result = &Apache::edit::rebuild_tag($token);
738: }
739: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
740: $target eq 'tex' || $target eq 'analyze' ) {
741: if ($env{'request.state'} eq 'construct') {
742: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
743: my $default=&Apache::lonxml::get_param('default',$parstack,
744: $safeeval);
745: if ($name) {$Apache::inputtags::params{$name}=$default;}
746: }
747: }
748: return $result;
749: }
750:
751: sub end_responseparam {
752: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
753: if ($target eq 'edit') { return ('','no'); }
754: return '';
755: }
756:
757: sub start_parameter {
758: return &start_responseparam(@_);
759: }
760:
761: sub end_parameter {
762: return &end_responseparam(@_);
763: }
764:
765: sub reset_params {
766: %Apache::inputtags::params=();
767: }
768:
769: sub setup_params {
770: my ($tag,$safeeval) = @_;
771:
772: if ($env{'request.state'} eq 'construct') { return; }
773: my %paramlist=();
774: foreach my $key (keys(%Apache::lonnet::packagetab)) {
775: if ($key =~ /^\Q$tag\E/) {
776: my ($package,$name) = split(/&/,$key);
777: $paramlist{$name}=1;
778: }
779: }
780: foreach my $key (keys(%paramlist)) {
781: my $entry= 'resource.'.$Apache::inputtags::part;
782: if (defined($Apache::inputtags::response[-1])) {
783: $entry.='_'.$Apache::inputtags::response[-1];
784: }
785: $entry.='.'.$key;
786: &Apache::lonxml::debug("looking for $entry");
787: my $value = &Apache::lonnet::EXT("$entry");
788: &Apache::lonxml::debug("$key has value :$value:");
789: if ($value eq 'con_lost' || $value =~ /^error:/) {
790: &Apache::lonxml::debug("using nothing");
791: $Apache::inputtags::params{$key}='';
792: } else {
793: my $string="{return qq\0".$value."\0}";
794: my $newvalue=&Apache::run::run($string,$safeeval,1);
795: if (defined($newvalue)) { $value=$newvalue; }
796: $Apache::inputtags::params{$key}=$value;
797: }
798: }
799: }
800:
801: {
802: my @answer_bits;
803: my $need_row_start;
804:
805: sub answer_header {
806: my ($type,$increment,$rows) = @_;
807: my $result;
808: if ($env{'form.answer_output_mode'} eq 'tex') {
809: undef(@answer_bits);
810: my $bit;
811: if ($Apache::lonhomework::type eq 'exam') {
812: $bit = ($Apache::lonxml::counter+$increment).') ';
813: } else {
814: $bit .= ' Answer for Part: \verb|'.
815: $Apache::inputtags::part.'| ';
816: }
817: push(@answer_bits,$bit);
818: } else {
819: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
820: $result = '<table border="1"><tr>';
821: if ($Apache::lonhomework::type eq 'exam') {
822: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
823: } else {
824: $result .= $td.&mt('Answer for Part: [_1]',
825: $Apache::inputtags::part).'</td>';
826: }
827: $result .= "\n";
828: $need_row_start = 0;
829: }
830: return $result;
831: }
832:
833: sub next_answer {
834: my ($type) = @_;
835: my $result;
836: if ($env{'form.answer_output_mode'} eq 'tex') {
837: # FIXME ... need to do something with tex mode
838: } else {
839: $result .= "</tr>";
840: $need_row_start = 1;
841: }
842: return $result;
843: }
844:
845: sub answer_part {
846: my ($type,$answer,$args) = @_;
847: my $result;
848: if ($env{'form.answer_output_mode'} eq 'tex') {
849: if (!$args->{'no_verbatim'}) {
850: my $to_use='|';
851: foreach my $value (32..126) {
852: my $char=pack('c',$value);
853: if ($answer !~ /\Q$char\E/) {
854: $to_use=$char;
855: last;
856: }
857: }
858: my $fullanswer=$answer;
859: $answer='';
860: foreach my $element (split(/[\;]/,$fullanswer)) {
861: if ($element ne '') {
862: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
863: }
864: }
865: }
866: if ($answer ne '') {
867: push(@answer_bits,$answer);
868: }
869: } else {
870: if ($need_row_start) {
871: $result .= '<tr>';
872: $need_row_start = 0;
873: }
874: $result .= '<td>'.$answer.'</td>';
875: }
876: return $result;
877: }
878:
879: sub answer_footer {
880: my ($type) = @_;
881: my $result;
882: if ($env{'form.answer_output_mode'} eq 'tex') {
883: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
884: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
885: for (my $i=1;$i<=$#answer_bits;$i++) {
886: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
887: }
888: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
889: } else {
890: if (!$need_row_start) {
891: $result .= '</tr>';
892: }
893: $result .= '</table>';
894: }
895: return $result;
896: }
897:
898: }
899:
900: sub showallfoils {
901: if (defined($env{'form.showallfoils'})) {
902: my ($symb)=&Apache::lonnet::whichuser();
903: if (($env{'request.state'} eq 'construct') ||
904: ($env{'user.adv'} && $symb eq '') ||
905: ($Apache::lonhomework::viewgrades) ) {
906: return 1;
907: }
908: }
909: if ($Apache::lonhomework::type eq 'survey') { return 1; }
910: return 0;
911: }
912:
913: =pod
914:
915: =item &getresponse();
916:
917: Retreives the current submitted response, helps out in the case of
918: scantron mode.
919:
920: Returns either the exact text of the submission, or a bubbled response
921: converted to something usable.
922:
923: Optional Arguments:
924: $offset - (defaults to 1) if a problem has more than one bubble
925: response, pass in the number of the bubble wanted, (the
926: first bubble associated with a problem has an offset of 1,
927: the second bubble is 2
928:
929: $resulttype - undef -> a number between 0 and 25
930: 'A is 1' -> a number between 1 and 26
931: 'letter' -> a letter between 'A' and 'Z'
932: $lines - undef problem only needs a single line of bubbles.
933: nonzero Problem wants the first nonempty response in
934: $lines lines of bubbles.
935: $bubbles_per_line - Must be provided if lines is defined.. number of
936: bubbles on a line.
937:
938: =cut
939:
940: sub getresponse {
941: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
942: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
943: my $response;
944: if (!defined($offset)) {
945: $offset=1;
946: } else {
947: $formparm.=":$offset";
948: }
949: if (!defined($lines)) {
950: $lines = 1;
951: }
952: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
953: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
954: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
955: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
956: if ($env{'form.submitted'} eq 'scantron') {
957: my $part = $Apache::inputtags::part;
958: my $id = $Apache::inputtags::response[-1];
959:
960: my $line;
961: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
962: if (!$startline) {
963: $startline = $Apache::lonxml::counter;
964: }
965: for ($line = 0; $line < $lines; $line++) {
966: my $theline = $startline+$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 $repetition;
1019: }
1020:
1021: =pod
1022:
1023: =item &scored_response();
1024:
1025: Sets the results hash elements
1026:
1027: resource.$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()
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: =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