Annotation of loncom/homework/response.pm, revision 1.213
1.38 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # various response type definitons response definition
1.53 albertel 3: #
1.213 ! bisitz 4: # $Id: response.pm,v 1.212 2009/03/13 00:34:20 raeburn Exp $
1.53 albertel 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: #
1.5 www 28:
1.208 jms 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:
1.1 albertel 52: package Apache::response;
53: use strict;
1.93 albertel 54: use Apache::lonlocal;
1.120 albertel 55: use Apache::lonnet;
1.153 www 56: use Apache::lonmaxima();
1.1 albertel 57:
1.57 harris41 58: BEGIN {
1.139 www 59: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
1.1 albertel 60: }
61:
1.13 albertel 62: sub start_response {
1.73 albertel 63: my ($parstack,$safeeval)=@_;
1.136 albertel 64: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.73 albertel 65: if ($#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,$id);
72: @Apache::inputtags::inputlist=();
1.101 albertel 73: if ($Apache::inputtags::part eq '' &&
74: !$Apache::lonhomework::ignore_response_errors) {
1.97 albertel 75: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
1.92 albertel 76: }
77: if ($Apache::inputtags::response_with_no_part &&
78: $Apache::inputtags::part ne '0') {
1.97 albertel 79: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
1.92 albertel 80: }
81: if ($Apache::inputtags::part eq '0') {
82: $Apache::inputtags::response_with_no_part=1;
83: }
1.73 albertel 84: return $id;
1.13 albertel 85: }
86:
87: sub end_response {
1.79 albertel 88: #pop @Apache::inputtags::response;
1.73 albertel 89: @Apache::inputtags::inputlist=();
90: return '';
1.13 albertel 91: }
92:
1.41 albertel 93: sub start_hintresponse {
1.73 albertel 94: my ($parstack,$safeeval)=@_;
1.136 albertel 95: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.123 albertel 96: push (@Apache::inputtags::hint,$id);
97: push (@Apache::inputtags::hintlist,$id);
1.73 albertel 98: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
99: return $id;
1.41 albertel 100: }
101:
102: sub end_hintresponse {
1.123 albertel 103: pop @Apache::inputtags::hint;
1.73 albertel 104: if (defined($Apache::inputtags::paramstack[-1])) {
105: %Apache::inputtags::params=
106: @{ pop(@Apache::inputtags::paramstack) };
107: }
108: return '';
1.41 albertel 109: }
110:
1.99 albertel 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();
1.127 albertel 119: push(@randomseeds,\@seed);
1.99 albertel 120: }
1.127 albertel 121: &Apache::response::setrandomnumber(@_);
1.99 albertel 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(@$seed);
132: } else {
133: &Apache::lonxml::error("Unable to restore random algorithm.");
134: }
135: }
1.117 albertel 136:
1.26 albertel 137: sub setrandomnumber {
1.127 albertel 138: my ($ignore_id2) = @_;
1.73 albertel 139: my $rndseed;
1.88 albertel 140: $rndseed=&Apache::structuretags::setup_rndseed();
141: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
1.73 albertel 142: &Apache::lonxml::debug("randseed $rndseed");
143: # $rndseed=unpack("%32i",$rndseed);
1.99 albertel 144: my $rand_alg=&Apache::lonnet::get_rand_alg();
1.126 albertel 145: my ($rndmod,$rndmod2);
1.119 albertel 146:
147: my ($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) {
1.141 albertel 155: $id1=&Apache::bridgetask::get_dim_id();
156: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
157: $id2=$Apache::bridgetask::instance{$id1}[-1];
1.142 albertel 158: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
159: } else {
160: $shift_amt=0;
1.119 albertel 161: }
162: }
163: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
1.99 albertel 164: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
165: $rand_alg eq '64bit2') {
1.119 albertel 166: $rndmod=(&Apache::lonnet::numval($id1) << 10);
167: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
1.110 albertel 168: } elsif ($rand_alg eq '64bit3') {
1.119 albertel 169: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
1.126 albertel 171: } elsif ($rand_alg eq '64bit4') {
1.119 albertel 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) << $shift );
1.110 albertel 176: }
1.126 albertel 177: } else {
178: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
1.99 albertel 179: }
1.127 albertel 180:
1.99 albertel 181: if ($rndseed =~/([,:])/) {
182: my $char=$1;
183: use integer;
184: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
185: $num1+=$rndmod;
1.126 albertel 186: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
1.109 albertel 187: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.99 albertel 188: $rndseed=$num1.$char.$num2;
189: } else {
1.74 albertel 190: $rndseed+=$rndmod;
1.109 albertel 191: if($Apache::lonnet::_64bit) {
192: use integer;
193: $rndseed=(($rndseed<<32)>>32);
194: }
1.74 albertel 195: }
1.111 albertel 196: &Apache::lonxml::debug("randseed $rndmod $rndseed");
1.74 albertel 197: &Apache::lonnet::setup_random_from_rndseed($rndseed);
1.73 albertel 198: return '';
1.26 albertel 199: }
200:
1.7 www 201: sub meta_parameter_write {
1.38 albertel 202: my ($name,$type,$default,$display)=@_;
1.41 albertel 203: my $partref=$Apache::inputtags::part;
204: my $result='<parameter part="'.$Apache::inputtags::part.'"';
205: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 206: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
207: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 208: }
209: $result.= ' name="'.$name.'"'.
210: ' type="'.$type.'"'.
1.89 albertel 211: (defined($default)?' default="'.$default.'"':'').
212: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
1.41 albertel 213: .'></parameter>'
214: ."\n";
215: return $result;
1.33 www 216: }
217:
218: sub meta_package_write {
219: my $name=shift;
1.41 albertel 220: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
221: if(defined($Apache::inputtags::response[-1])) {
1.73 albertel 222: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
1.41 albertel 223: }
224: $result.=' package="'.$name.'"></parameter>'."\n";
225: return $result;
1.7 www 226: }
227:
228: sub meta_stores_write {
1.10 www 229: my ($name,$type,$display)=@_;
1.41 albertel 230: my $partref=$Apache::inputtags::part;
231: my $result = '<stores part="'.$Apache::inputtags::part.'"';
232: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 233: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
234: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 235: }
236: $result.= ' name="'.$name.'"'.
237: ' type="'.$type.'"'.
238: ' display="'.$display.' [Part: '.$partref.']"'.
239: "></stores>\n";
1.7 www 240: }
241:
1.207 jms 242: =pod
243:
1.210 raeburn 244: =item mandatory_part_meta()
1.207 jms 245:
246: Autogenerate metadata for mandatory
1.210 raeburn 247: input (from RAT or lonparmset) and
1.207 jms 248: output (to lonspreadsheet)
249: of each part
250:
251: Note: responseid-specific data 'submission' and 'awarddetail'
252: not available to spreadsheet -> skip here
253:
254: =cut
255:
1.210 raeburn 256:
257: sub mandatory_part_meta {
258: return &meta_package_write('part').
259: &meta_stores_write('solved','string','Problem Status').
260: &meta_stores_write('tries','int_zeropos','Number of Attempts').
261: &meta_stores_write('awarded','float','Partial Credit Factor');
1.86 albertel 262: }
263:
264: sub meta_part_order {
265: if (@Apache::inputtags::partlist) {
266: my @parts=@Apache::inputtags::partlist;
267: shift(@parts);
1.100 albertel 268: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
1.86 albertel 269: } else {
1.100 albertel 270: return '<partorder>0</partorder>'."\n";
271: }
272: }
273:
274: sub meta_response_order {
275: if (@Apache::inputtags::responselist) {
276: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
277: '</responseorder>'."\n";
1.86 albertel 278: }
1.14 albertel 279: }
280:
1.15 albertel 281: sub check_for_previous {
1.160 albertel 282: my ($curresponse,$partid,$id,$last) = @_;
1.73 albertel 283: my %previous;
284: $previous{'used'} = 0;
285: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
1.212 raeburn 286: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
1.160 albertel 287: if ( $last && $key =~ /^(\d+):/ ) {
288: next if ($1 >= $last);
289: }
1.73 albertel 290: &Apache::lonxml::debug("Trying $key");
291: my $pastresponse=$Apache::lonhomework::history{$key};
292: if ($pastresponse eq $curresponse) {
293: $previous{'used'} = 1;
294: my $history;
295: if ( $key =~ /^(\d+):/ ) {
296: $history=$1;
297: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
298: $previous{'last'}='0';
299: push(@{ $previous{'version'} },$history);
300: } else {
301: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
302: $previous{'last'}='1';
303: }
304: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
1.209 www 305: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
1.73 albertel 306: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
307: }
1.32 albertel 308: }
1.73 albertel 309: }
310: &Apache::lonhomework::showhash(%previous);
311: return %previous;
1.54 albertel 312: }
313:
314: sub handle_previous {
1.73 albertel 315: my ($previous,$ad)=@_;
316: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
317: if ($$previous{'last'}) {
318: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
1.107 albertel 319: push(@Apache::inputtags::previous_version,$$previous{'version'});
320: } elsif ($Apache::lonhomework::type ne 'survey') {
1.73 albertel 321: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
1.107 albertel 322: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.73 albertel 323: }
1.54 albertel 324: }
1.44 albertel 325: }
326:
1.45 albertel 327: sub view_or_modify {
1.149 albertel 328: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.73 albertel 329: my $myself=0;
1.120 albertel 330: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
1.73 albertel 331: $myself=1;
332: }
333: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
334: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
335: if ($mgr) { return "M"; }
336: if ($vgr) { return "V"; }
337: if ($myself) { return "V"; }
338: return '';
1.45 albertel 339: }
340:
1.44 albertel 341: sub start_dataresponse {
1.73 albertel 342: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
343: my $id = &Apache::response::start_response($parstack,$safeeval);
344: my $result;
345: if ($target eq 'web') {
346: $result = $token->[2]->{'display'}.':';
347: } elsif ($target eq 'meta') {
348: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
349: $token->[2]->{'type'},
350: $token->[2]->{'display'});
351: $result .= &Apache::response::meta_package_write('dataresponse');
352: }
353: return $result;
1.44 albertel 354: }
355:
356: sub end_dataresponse {
1.73 albertel 357: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
358: my $result;
359: if ( $target eq 'web' ) {
360: } elsif ($target eq 'grade' ) {
1.120 albertel 361: if ( defined $env{'form.submitted'}) {
1.149 albertel 362: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
1.73 albertel 363: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
364: if ($allowed) {
1.94 albertel 365: &Apache::response::setup_params('dataresponse',$safeeval);
1.73 albertel 366: my $partid = $Apache::inputtags::part;
367: my $id = $Apache::inputtags::response['-1'];
1.120 albertel 368: my $response = $env{'form.HWVAL_'.$id};
1.73 albertel 369: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
370: if ( $response =~ /[^\s]/) {
371: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
372: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
373: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
374: }
375: } else {
376: $result='Not Permitted to change values.'
377: }
1.45 albertel 378: }
1.73 albertel 379: }
380: &Apache::response::end_response;
381: return $result;
1.3 albertel 382: }
383:
1.129 albertel 384: sub start_customresponse {
1.128 albertel 385: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
386: my $id = &Apache::response::start_response($parstack,$safeeval);
1.129 albertel 387: push(@Apache::lonxml::namespace,'customresponse');
1.128 albertel 388: my $result;
1.157 www 389: @Apache::response::custom_answer=();
390: @Apache::response::custom_answer_type=();
1.128 albertel 391: &Apache::lonxml::register('Apache::response',('answer'));
392: if ($target eq 'web') {
393: if ( &Apache::response::show_answer() ) {
394: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
395: $safeeval);
1.152 albertel 396: $Apache::inputtags::answertxt{$id}=[$answer];
1.128 albertel 397: }
398: } elsif ($target eq 'edit') {
399: $result.=&Apache::edit::tag_start($target,$token);
400: $result.=&Apache::edit::text_arg('String to display for answer:',
1.145 albertel 401: 'answerdisplay',$token);
1.128 albertel 402: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
403: } elsif ($target eq 'modified') {
404: my $constructtag;
405: $constructtag=&Apache::edit::get_new_args($token,$parstack,
406: $safeeval,'answerdisplay');
407: if ($constructtag) {
408: $result = &Apache::edit::rebuild_tag($token);
409: }
410: } elsif ($target eq 'answer' || $target eq 'grade') {
411: &Apache::response::reset_params();
412: } elsif ($target eq 'meta') {
1.129 albertel 413: $result .= &Apache::response::meta_package_write('customresponse');
1.128 albertel 414: }
415: return $result;
416: }
417:
1.129 albertel 418: sub end_customresponse {
1.128 albertel 419: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
420: my $result;
421: my $part=$Apache::inputtags::part;
422: my $id=$Apache::inputtags::response[-1];
423: if ( $target eq 'grade' && &Apache::response::submitted() ) {
424: my $response = &Apache::response::getresponse();
1.146 albertel 425: if ($Apache::lonhomework::type eq 'exam' ||
426: &Apache::response::submitted('scantron')) {
427: &Apache::response::scored_response($part,$id);
428: } elsif ( $response =~ /[^\s]/ &&
1.158 www 429: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
1.128 albertel 430: if (!$Apache::lonxml::default_homework_loaded) {
431: &Apache::lonxml::default_homework_load($safeeval);
432: }
433: my %previous = &Apache::response::check_for_previous($response,
434: $part,$id);
435: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
436: $response;
437: my $error;
1.129 albertel 438: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
1.128 albertel 439: $response;
440:
1.157 www 441: my $award = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
1.128 albertel 442: if (!&Apache::inputtags::valid_award($award)) {
443: $error = $award;
444: $award = 'ERROR';
445: }
446: &Apache::response::handle_previous(\%previous,$award);
447: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
448: $award;
449: if ($error) {
450: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
451: $error;
452: }
453: }
1.146 albertel 454: } elsif ( $target eq 'answer') {
455: $result = &Apache::response::answer_header('customresponse');
456: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
457: $safeeval);
458: if ($env{'form.answer_output_mode'} ne 'tex') {
459: $answer = '<b>'.$answer.'</b>';
460: }
461: $result .= &Apache::response::answer_part('customresponse',$answer);
462: $result .= &Apache::response::answer_footer('customresponse');
463: }
1.163 albertel 464: if ($target eq 'web') {
465: &setup_prior_tries_hash(\&format_prior_response_math);
466: }
1.146 albertel 467: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
468: $target eq 'tex' || $target eq 'analyze') {
1.179 foxr 469: &Apache::lonxml::increment_counter(&Apache::response::repetition(),
1.180 foxr 470: "$part.$id");
1.179 foxr 471: if ($target eq 'analyze') {
1.187 raeburn 472: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
1.179 foxr 473: &Apache::lonhomework::set_bubble_lines();
474: }
1.128 albertel 475: }
476: pop(@Apache::lonxml::namespace);
1.157 www 477: pop(@Apache::response::custom_answer);
478: pop(@Apache::response::custom_answer_type);
1.128 albertel 479: &Apache::lonxml::deregister('Apache::response',('answer'));
480: &Apache::response::end_response();
481: return $result;
482: }
483:
1.163 albertel 484: sub format_prior_response_custom {
485: my ($mode,$answer) =@_;
486: return '<span class="LC_prior_custom">'.
487: &HTML::Entities::encode($answer,'"<>&').'</span>';
488: }
1.140 www 489:
1.139 www 490: sub start_mathresponse {
1.140 www 491: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
492: my $id = &Apache::response::start_response($parstack,$safeeval);
493: push(@Apache::lonxml::namespace,'mathresponse');
1.139 www 494: my $result;
1.157 www 495: @Apache::response::custom_answer=();
496: @Apache::response::custom_answer_type=();
1.140 www 497: &Apache::lonxml::register('Apache::response',('answer'));
498: if ($target eq 'web') {
499: if ( &Apache::response::show_answer() ) {
500: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
501: $safeeval);
1.152 albertel 502: $Apache::inputtags::answertxt{$id}=[$answer];
1.140 www 503: }
1.191 www 504:
1.140 www 505: } elsif ($target eq 'edit') {
506: $result.=&Apache::edit::tag_start($target,$token);
507: $result.=&Apache::edit::text_arg('String to display for answer:',
508: 'answerdisplay',$token);
1.150 www 509: $result.=&Apache::edit::select_arg('Algebra System:',
510: 'cas',
511: ['maxima'],
512: $token);
513: $result.=&Apache::edit::text_arg('Argument Array:',
1.193 www 514: 'args',$token).
515: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
1.192 www 516: $result.=&Apache::edit::text_arg('Libraries:',
1.193 www 517: 'libraries',$token).
518: &Apache::loncommon::help_open_topic('Maxima_Libraries');
1.140 www 519: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
520: } elsif ($target eq 'modified') {
521: my $constructtag;
522: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.192 www 523: $safeeval,'answerdisplay','cas','args','libraries');
1.140 www 524: if ($constructtag) {
525: $result = &Apache::edit::rebuild_tag($token);
526: }
527: } elsif ($target eq 'answer' || $target eq 'grade') {
528: &Apache::response::reset_params();
529: } elsif ($target eq 'meta') {
530: $result .= &Apache::response::meta_package_write('mathresponse');
1.139 www 531: }
532: return $result;
533: }
534:
1.191 www 535: sub edit_mathresponse_button {
536: my ($id,$field)=@_;
537: my $button=&mt('Edit Answer');
1.201 riegler 538: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
1.197 riegler 539: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
1.191 www 540: return(<<ENDFORMULABUTTON);
1.213 ! bisitz 541: <script type="text/javascript" language="JavaScript">
1.191 www 542: function edit_${id}_${field} (textarea) {
543: thenumber = textarea;
544: thedata = document.forms['lonhomework'].elements[textarea].value;
545: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
546: }
547: </script>
1.201 riegler 548: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src='$iconpath/stift.gif' alt='$button' title='$button'/></a>
1.191 www 549: ENDFORMULABUTTON
550: }
551:
1.139 www 552: sub end_mathresponse {
1.140 www 553: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
554: my $result;
555: my $part=$Apache::inputtags::part;
556: my $id=$Apache::inputtags::response[-1];
557: if ( $target eq 'grade' && &Apache::response::submitted() ) {
558: my $response = &Apache::response::getresponse();
1.150 www 559: if ( $response =~ /[^\s]/ ) {
1.140 www 560: if (!$Apache::lonxml::default_homework_loaded) {
561: &Apache::lonxml::default_homework_load($safeeval);
562: }
563: my %previous = &Apache::response::check_for_previous($response,
564: $part,$id);
565: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
566: $response;
567: my $error;
1.155 www 568: my $award;
569: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
570: if ($cas eq 'maxima') {
571: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
1.192 www 572: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
573: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
1.155 www 574: }
1.140 www 575: if (!&Apache::inputtags::valid_award($award)) {
1.151 albertel 576: $error = $award;
577: $award = 'ERROR';
1.140 www 578: }
579: &Apache::response::handle_previous(\%previous,$award);
580: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
581: $award;
582: if ($error) {
583: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
584: $error;
585: }
586: }
587: }
1.163 albertel 588: if ($target eq 'web') {
589: &setup_prior_tries_hash(\&format_prior_response_math);
1.203 riegler 590: my $partid = $Apache::inputtags::part;
591: my $id = $Apache::inputtags::response[-1];
592: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
1.205 raeburn 593: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
1.202 riegler 594: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
595: }
1.163 albertel 596: }
597:
1.140 www 598: pop(@Apache::lonxml::namespace);
1.157 www 599: pop(@Apache::response::custom_answer);
600: pop(@Apache::response::custom_answer_type);
1.140 www 601: &Apache::lonxml::deregister('Apache::response',('answer'));
602: &Apache::response::end_response();
603: return $result;
1.139 www 604: }
605:
1.163 albertel 606: sub format_prior_response_math {
607: my ($mode,$answer) =@_;
608: return '<span class="LC_prior_math">'.
609: &HTML::Entities::encode($answer,'"<>&').'</span>';
610: }
611:
1.156 www 612: sub implicit_multiplication {
613: my ($expression)=@_;
614: # Escape scientific notation, so 3e8 does not become 3*e*8
615: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
616: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
617: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
618: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
619: # Fill in multiplication signs
620: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
1.176 albertel 621: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
1.156 www 622: # )( -> )*(; ) ( -> )*(
623: $expression=~s/\)\s*\(/\)\*\(/gs;
624: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
625: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
626: # a ( -> a*(
1.174 riegler 627: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
1.156 www 628: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
1.174 riegler 629: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
1.156 www 630: # 3&8 -> 3e8; 3&-4 -> 3e-4
631: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
632: return $expression;
633: }
1.140 www 634:
1.128 albertel 635: sub start_answer {
636: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
637: my $result;
1.157 www 638: push(@Apache::response::custom_answer,
639: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
640: push(@Apache::response::custom_answer_type,
641: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
642: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
1.128 albertel 643: if ($target eq "edit" ) {
644: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
645: $result.=&Apache::edit::editfield($token->[1],
1.158 www 646: $Apache::response::custom_answer[-1],
1.128 albertel 647: '',80,4);
648: } elsif ( $target eq "modified" ) {
649: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
650: }
651: return $result;
652: }
653:
654: sub end_answer {
655: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
656: if ($target eq 'edit' ) {
657: return &Apache::edit::end_table();
658: }
659: }
660:
1.83 albertel 661: sub decide_package {
662: my ($tagstack)=@_;
663: my $package;
664: if ($$tagstack[-1] eq 'parameter') {
665: $package='part';
666: } else {
667: my $i=-1;
668: while (defined($$tagstack[$i])) {
669: if ($$tagstack[$i] =~ /(response|hint)$/) {
670: $package=$$tagstack[$i];
671: last;
672: }
673: $i--;
674: }
675: }
676: return $package;
677: }
678:
1.3 albertel 679: sub start_responseparam {
1.73 albertel 680: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
681: my $result='';
682: if ($target eq 'meta') {
683: $result = &meta_parameter_write($token->[2]->{'name'},
684: $token->[2]->{'type'},
685: $token->[2]->{'default'},
686: $token->[2]->{'description'});
687: } elsif ($target eq 'edit') {
688: $result.=&Apache::edit::tag_start($target,$token);
1.83 albertel 689: my $optionlist;
690: my $package=&decide_package($tagstack);
691: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
692: if ($key =~ /^\Q$package\E&(.*)&display$/) {
693: $optionlist.='<option value="'.$1.'">'.
694: $Apache::lonnet::packagetab{$key}.'</option>';
695: }
696: }
697: if (defined($optionlist)) {
1.206 bisitz 698: $result.=&mt('Use template:').' <select name="'.
1.83 albertel 699: &Apache::edit::html_element_name('parameter_package').'">'.
700: '<option value=""></option>'.$optionlist.'</select><br />';
701: }
1.73 albertel 702: $result.=&Apache::edit::text_arg('Name:','name',$token).
703: &Apache::edit::text_arg('Type:','type',$token).
704: &Apache::edit::text_arg('Description:','description',$token).
705: &Apache::edit::text_arg('Default:','default',$token).
706: "</td></tr>";
707: $result.=&Apache::edit::end_table;
708: } elsif ($target eq 'modified') {
1.83 albertel 709: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
710: $safeeval,'name','type',
711: 'description','default');
712: my $element=&Apache::edit::html_element_name('parameter_package');
1.120 albertel 713: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
714: my $name=$env{"form.$element"};
1.83 albertel 715: my $tag=&decide_package($tagstack);
716: $token->[2]->{'name'}=$name;
717: $token->[2]->{'type'}=
718: $Apache::lonnet::packagetab{"$tag&$name&type"};
719: $token->[2]->{'description'}=
720: $Apache::lonnet::packagetab{"$tag&$name&display"};
721: $token->[2]->{'default'}=
722: $Apache::lonnet::packagetab{"$tag&$name&default"};
1.186 raeburn 723: $token->[3] = ['name','type','description','default'];
1.83 albertel 724: $constructtag=1;
725: }
1.73 albertel 726: if ($constructtag) {
727: $result = &Apache::edit::rebuild_tag($token);
728: }
729: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
730: $target eq 'tex' || $target eq 'analyze' ) {
1.120 albertel 731: if ($env{'request.state'} eq 'construct') {
1.73 albertel 732: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
733: my $default=&Apache::lonxml::get_param('default',$parstack,
734: $safeeval);
735: if ($name) {$Apache::inputtags::params{$name}=$default;}
736: }
1.52 albertel 737: }
1.73 albertel 738: return $result;
1.3 albertel 739: }
740:
741: sub end_responseparam {
1.73 albertel 742: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
743: if ($target eq 'edit') { return ('','no'); }
744: return '';
1.55 albertel 745: }
746:
747: sub start_parameter {
1.114 albertel 748: return &start_responseparam(@_);
1.55 albertel 749: }
750:
751: sub end_parameter {
1.114 albertel 752: return &end_responseparam(@_);
1.42 albertel 753: }
754:
1.67 albertel 755: sub reset_params {
756: %Apache::inputtags::params=();
757: }
758:
1.42 albertel 759: sub setup_params {
1.94 albertel 760: my ($tag,$safeeval) = @_;
1.42 albertel 761:
1.120 albertel 762: if ($env{'request.state'} eq 'construct') { return; }
1.73 albertel 763: my %paramlist=();
764: foreach my $key (keys(%Apache::lonnet::packagetab)) {
1.161 albertel 765: if ($key =~ /^\Q$tag\E/) {
1.73 albertel 766: my ($package,$name) = split(/&/,$key);
767: $paramlist{$name}=1;
768: }
1.42 albertel 769: }
1.73 albertel 770: foreach my $key (keys(%paramlist)) {
771: my $entry= 'resource.'.$Apache::inputtags::part;
772: if (defined($Apache::inputtags::response[-1])) {
773: $entry.='_'.$Apache::inputtags::response[-1];
774: }
775: $entry.='.'.$key;
776: &Apache::lonxml::debug("looking for $entry");
777: my $value = &Apache::lonnet::EXT("$entry");
778: &Apache::lonxml::debug("$key has value :$value:");
779: if ($value eq 'con_lost' || $value =~ /^error:/) {
780: &Apache::lonxml::debug("using nothing");
781: $Apache::inputtags::params{$key}='';
782: } else {
1.94 albertel 783: my $string="{return qq\0".$value."\0}";
784: my $newvalue=&Apache::run::run($string,$safeeval,1);
785: if (defined($newvalue)) { $value=$newvalue; }
1.73 albertel 786: $Apache::inputtags::params{$key}=$value;
787: }
1.42 albertel 788: }
1.48 albertel 789: }
790:
1.132 albertel 791: {
792: my @answer_bits;
1.147 albertel 793: my $need_row_start;
1.132 albertel 794:
1.48 albertel 795: sub answer_header {
1.147 albertel 796: my ($type,$increment,$rows) = @_;
1.73 albertel 797: my $result;
1.120 albertel 798: if ($env{'form.answer_output_mode'} eq 'tex') {
1.132 albertel 799: undef(@answer_bits);
1.133 albertel 800: my $bit;
801: if ($Apache::lonhomework::type eq 'exam') {
802: $bit = ($Apache::lonxml::counter+$increment).') ';
803: } else {
804: $bit .= ' Answer for Part: \verb|'.
805: $Apache::inputtags::part.'| ';
806: }
807: push(@answer_bits,$bit);
1.73 albertel 808: } else {
1.147 albertel 809: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
1.132 albertel 810: $result = '<table border="1"><tr>';
811: if ($Apache::lonhomework::type eq 'exam') {
1.147 albertel 812: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
1.132 albertel 813: } else {
1.147 albertel 814: $result .= $td.&mt('Answer for Part: [_1]',
815: $Apache::inputtags::part).'</td>';
1.132 albertel 816: }
817: $result .= "\n";
1.147 albertel 818: $need_row_start = 0;
819: }
820: return $result;
821: }
822:
823: sub next_answer {
824: my ($type) = @_;
825: my $result;
826: if ($env{'form.answer_output_mode'} eq 'tex') {
827: # FIXME ... need to do something with tex mode
828: } else {
829: $result .= "</tr>";
830: $need_row_start = 1;
1.73 albertel 831: }
832: return $result;
1.48 albertel 833: }
834:
835: sub answer_part {
1.148 albertel 836: my ($type,$answer,$args) = @_;
1.73 albertel 837: my $result;
1.120 albertel 838: if ($env{'form.answer_output_mode'} eq 'tex') {
1.148 albertel 839: if (!$args->{'no_verbatim'}) {
840: my $to_use='|';
841: foreach my $value (32..126) {
842: my $char=pack('c',$value);
843: if ($answer !~ /\Q$char\E/) {
844: $to_use=$char;
845: last;
846: }
847: }
1.189 www 848: my $fullanswer=$answer;
1.188 www 849: $answer='';
1.189 www 850: foreach my $element (split(/[\;]/,$fullanswer)) {
851: if ($element ne '') {
852: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
853: }
1.188 www 854: }
1.124 albertel 855: }
1.132 albertel 856: if ($answer ne '') {
1.148 albertel 857: push(@answer_bits,$answer);
1.132 albertel 858: }
1.73 albertel 859: } else {
1.147 albertel 860: if ($need_row_start) {
861: $result .= '<tr>';
862: $need_row_start = 0;
863: }
1.189 www 864: $result .= '<td>'.$answer.'</td>';
1.73 albertel 865: }
866: return $result;
1.48 albertel 867: }
868:
869: sub answer_footer {
1.73 albertel 870: my ($type) = @_;
871: my $result;
1.120 albertel 872: if ($env{'form.answer_output_mode'} eq 'tex') {
1.189 www 873: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
874: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
875: for (my $i=1;$i<=$#answer_bits;$i++) {
876: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
877: }
878: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
1.73 albertel 879: } else {
1.185 albertel 880: if (!$need_row_start) {
881: $result .= '</tr>';
882: }
883: $result .= '</table>';
1.73 albertel 884: }
885: return $result;
1.1 albertel 886: }
1.2 albertel 887:
1.132 albertel 888: }
889:
1.62 albertel 890: sub showallfoils {
1.120 albertel 891: if (defined($env{'form.showallfoils'})) {
1.149 albertel 892: my ($symb)=&Apache::lonnet::whichuser();
1.120 albertel 893: if (($env{'request.state'} eq 'construct') ||
894: ($env{'user.adv'} && $symb eq '') ||
1.118 foxr 895: ($Apache::lonhomework::viewgrades) ) {
1.102 albertel 896: return 1;
897: }
1.73 albertel 898: }
1.108 albertel 899: if ($Apache::lonhomework::type eq 'survey') { return 1; }
1.102 albertel 900: return 0;
1.70 albertel 901: }
902:
1.168 albertel 903: =pod
904:
1.210 raeburn 905: =item &getresponse();
1.168 albertel 906:
907: Retreives the current submitted response, helps out in the case of
908: scantron mode.
909:
910: Returns either the exact text of the submission, or a bubbled response
911: converted to something usable.
912:
913: Optional Arguments:
1.171 albertel 914: $offset - (defaults to 1) if a problem has more than one bubble
915: response, pass in the number of the bubble wanted, (the
916: first bubble associated with a problem has an offset of 1,
917: the second bubble is 2
918:
1.168 albertel 919: $resulttype - undef -> a number between 0 and 25
920: 'A is 1' -> a number between 1 and 26
921: 'letter' -> a letter between 'A' and 'Z'
1.172 foxr 922: $lines - undef problem only needs a single line of bubbles.
923: nonzero Problem wants the first nonempty response in
924: $lines lines of bubbles.
925: $bubbles_per_line - Must be provided if lines is defined.. number of
926: bubbles on a line.
1.173 albertel 927:
1.168 albertel 928: =cut
929:
1.70 albertel 930: sub getresponse {
1.172 foxr 931: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
1.70 albertel 932: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
933: my $response;
1.168 albertel 934: if (!defined($offset)) {
1.170 albertel 935: $offset=1;
1.70 albertel 936: } else {
1.168 albertel 937: $formparm.=":$offset";
1.70 albertel 938: }
1.172 foxr 939: if (!defined($lines)) {
940: $lines = 1;
941: }
1.70 albertel 942: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
943: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
944: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
945: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
1.120 albertel 946: if ($env{'form.submitted'} eq 'scantron') {
1.71 albertel 947: my $part = $Apache::inputtags::part;
948: my $id = $Apache::inputtags::response[-1];
1.172 foxr 949:
950: my $line;
1.211 raeburn 951: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
952: if (!$startline) {
953: $startline = $Apache::lonxml::counter;
954: }
1.172 foxr 955: for ($line = 0; $line < $lines; $line++) {
1.211 raeburn 956: my $theline = $startline+$offset-1+$line;
1.184 foxr 957: $response = $env{"scantron.$theline.answer"};
958: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
1.172 foxr 959: last;
960: }
1.211 raeburn 961:
1.172 foxr 962: }
1.178 albertel 963:
964: # save bubbled letter for later
965: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
966: $response;
1.90 albertel 967: if ($resulttype ne 'letter') {
1.104 albertel 968: if ($resulttype eq 'A is 1') {
1.105 albertel 969: $response = $let_to_num{$response}+1;
970: } else {
1.104 albertel 971: $response = $let_to_num{$response};
972: }
1.172 foxr 973: if ($response ne "") {
974: $response += $line * $bubbles_per_line;
975: }
976: } else {
977: if ($response ne "") {
978: $response = chr(ord($response) + $line * $bubbles_per_line);
979: }
1.90 albertel 980: }
1.172 foxr 981:
1.70 albertel 982: } else {
1.120 albertel 983: $response = $env{$formparm};
1.70 albertel 984: }
1.172 foxr 985: #
986: # If we have a nonempty answer, correct the numeric value
987: # of the answer for the line on which it was found.
988: #
989:
1.70 albertel 990: return $response;
1.62 albertel 991: }
1.71 albertel 992:
1.168 albertel 993: =pod
994:
995: =item &repetition();
996:
997: Returns the number of lines that are required to encode the weight.
998: (Currently expects that there are 10 bubbles per line)
999:
1000: =cut
1001:
1.71 albertel 1002: sub repetition {
1003: my $id = $Apache::inputtags::part;
1004: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.121 albertel 1005: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1.125 albertel 1006: my $repetition = int($weight/10);
1007: if ($weight % 10 != 0) { $repetition++; }
1.72 albertel 1008: return $repetition;
1009: }
1010:
1.168 albertel 1011: =pod
1012:
1.210 raeburn 1013: =item &scored_response();
1.168 albertel 1014:
1015: Sets the results hash elements
1016:
1017: resource.$part_id.$response_id.awarded - to the floating point
1018: number between 0 and 1 that was awarded on the bubbled input
1019:
1020: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1021:
1022: Returns
1023:
1024: the number of bubble sheet lines that were used (and likely need to
1025: be passed to &Apache::lonxml::increment_counter()
1026:
1027: Arguments
1028:
1029: $part_id - id of the part to grade
1030: $response_id - id of the response to grade
1031:
1032:
1033: =cut
1034:
1.72 albertel 1035: sub scored_response {
1036: my ($part,$id)=@_;
1037: my $repetition=&repetition();
1038: my $score=0;
1039: for (my $i=0;$i<$repetition;$i++) {
1.125 albertel 1040: # A is 1, B is 2, etc. (get response return 0-9 and then we add 1)
1.72 albertel 1041: my $increase=&Apache::response::getresponse($i+1);
1042: if ($increase ne '') { $score+=$increase+1; }
1043: }
1044: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1.91 albertel 1045: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1.72 albertel 1046: my $pcr=$score/$weight;
1047: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1048: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1049: 'ASSIGNED_SCORE';
1.71 albertel 1050: return $repetition;
1.78 albertel 1051: }
1052:
1053: sub whichorder {
1054: my ($max,$randomize,$showall,$hash)=@_;
1055: #&Apache::lonxml::debug("man $max randomize $randomize");
1056: if (!defined(@{ $$hash{'names'} })) { return; }
1057: my @names = @{ $$hash{'names'} };
1058: my @whichopt =();
1059: my (%top,@toplist,%bottom,@bottomlist);
1060: if (!($showall || ($randomize eq 'no'))) {
1061: my $current=0;
1062: foreach my $name (@names) {
1063: $current++;
1064: if ($$hash{"$name.location"} eq 'top') {
1065: $top{$name}=$current;
1066: } elsif ($$hash{"$name.location"} eq 'bottom') {
1067: $bottom{$name}=$current;
1068: }
1069: }
1070: }
1071: my $topcount=0;
1072: my $bottomcount=0;
1073: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1074: && ($#names > -1)) {
1075: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1076: my $aopt;
1077: if ($showall || ($randomize eq 'no')) {
1078: $aopt=0;
1079: } else {
1080: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1081: }
1082: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1083: $aopt=splice(@names,$aopt,1);
1084: #&Apache::lonxml::debug("Picked $aopt");
1085: if ($top{$aopt}) {
1086: $toplist[$top{$aopt}]=$aopt;
1087: $topcount++;
1088: } elsif ($bottom{$aopt}) {
1089: $bottomlist[$bottom{$aopt}]=$aopt;
1090: $bottomcount++;
1091: } else {
1092: push (@whichopt,$aopt);
1093: }
1094: }
1095: for (my $i=0;$i<=$#toplist;$i++) {
1096: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1097: }
1098: for (my $i=0;$i<=$#bottomlist;$i++) {
1099: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1100: }
1101: return @whichopt;
1.71 albertel 1102: }
1103:
1.85 albertel 1104: sub show_answer {
1105: my $part = $Apache::inputtags::part;
1106: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1107: my $status = $Apache::inputtags::status[-1];
1108: return ( ($award =~ /^correct/
1.181 albertel 1109: && &Apache::lonhomework::show_problem_status())
1.85 albertel 1110: || $status eq "SHOW_ANSWER");
1111: }
1.87 albertel 1112:
1113: sub analyze_store_foilgroup {
1114: my ($shown,$attrs)=@_;
1115: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1116: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1117: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1118: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1119: foreach my $attr (@$attrs) {
1120: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1121: $Apache::response::foilgroup{"$name.".$attr};
1122: }
1123: }
1124: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1.96 albertel 1125: }
1126:
1127: sub check_if_computed {
1128: my ($token,$parstack,$safeeval,$name)=@_;
1129: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1.106 matthew 1130: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1.96 albertel 1131: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1132: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1133: }
1.87 albertel 1134: }
1135:
1136: sub pick_foil_for_concept {
1137: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1138: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
1139: my @names = @{ $Apache::response::conceptgroup{'names'} };
1140: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1141: my $name=$names[$pick];
1142: push @{ $Apache::response::foilgroup{'names'} }, $name;
1143: foreach my $attr (@$attrs) {
1144: $Apache::response::foilgroup{"$name.".$attr} =
1145: $Apache::response::conceptgroup{"$name.".$attr};
1146: }
1147: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1148: $Apache::response::foilgroup{"$name.concept"} = $concept;
1149: &Apache::lonxml::debug("Selecting $name in $concept");
1150: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1151: if ($target eq 'analyze') {
1152: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1153: $concept);
1154: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1155: $Apache::response::conceptgroup{'names'};
1156: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1157: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1158: $name);
1159: foreach my $attr (@$attrs) {
1160: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1161: $Apache::response::conceptgroup{"$name.$attr"};
1162: }
1163: }
1164: }
1165: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1166: $hinthash->{"$part_id.concept.$concept"}=
1167: $Apache::response::conceptgroup{'names'};
1168:
1169: }
1.208 jms 1170:
1171: =pod
1172:
1173: =item get_response_param()
1174:
1175: Get a parameter associated with a problem.
1176: Parameters:
1177: $id - the id of the paramater, either a part id,
1178: or a partid and responspe id joined by _
1179: $name - Name of the parameter to fetch
1180: $default - Default value for the paramter.
1181:
1182: =cut
1183:
1.95 albertel 1184: sub get_response_param {
1185: my ($id,$name,$default)=@_;
1186: my $parameter;
1.120 albertel 1187: if ($env{'request.state'} eq 'construct' &&
1.95 albertel 1188: defined($Apache::inputtags::params{$name})) {
1189: $parameter=$Apache::inputtags::params{$name};
1190: } else {
1191: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1192: }
1193: if (!defined($parameter) || $parameter eq '') {
1194: $parameter = $default;
1195: }
1196: return $parameter;
1197: }
1.87 albertel 1198:
1.113 albertel 1199: sub submitted {
1200: my ($who)=@_;
1201:
1202: # when scatron grading any submission is a submission
1.120 albertel 1203: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1.113 albertel 1204: # if the caller only cared if this was a scantron submission
1205: if ($who eq 'scantron') { return 0; }
1206: # if the Submit Answer button for this particular part was pressed
1207: my $partid=$Apache::inputtags::part;
1.159 albertel 1208: if ($env{'form.submitted'} eq "part_$partid") {
1209: return 1;
1210: }
1211: if ($env{'form.submitted'} eq "yes"
1212: && defined($env{'form.submit_'.$partid})) {
1213: return 1;
1214: }
1.122 albertel 1215: # Submit All button on a .page was pressed
1216: if (defined($env{'form.all_submit'})) { return 1; }
1.204 bisitz 1217: # otherwise no submission occurred
1.113 albertel 1218: return 0;
1219: }
1.117 albertel 1220:
1.130 albertel 1221: sub add_to_gradingqueue {
1.149 albertel 1222: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.131 albertel 1223: if ( $courseid eq ''
1224: || $symb eq ''
1.135 albertel 1225: || $env{'request.state'} eq 'construct'
1226: || $Apache::lonhomework::type ne 'problem') {
1.131 albertel 1227: return;
1228: }
1.130 albertel 1229:
1230: my %queue_info = ( 'type' => 'problem',
1231: 'time' => time);
1232:
1233: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1234: $queue_info{'slot'}=
1235: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1236: }
1237:
1238: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1239: if ($result ne 'ok') {
1240: &Apache::lonxml::error("add_to_queue said $result");
1241: }
1242: }
1243:
1.208 jms 1244: =pod
1245:
1246: =item check_status()
1247:
1248: basically undef and 0 (both false) mean that they still have work to do
1249: and all true values mean that they can't do any more work
1250:
1251: a return of undef means it is unattempted
1252: a return of 0 means it is attmpted and wrong but still has tries
1253: a return of 1 means it is marked correct
1254: a return of 2 means they have exceed maximum number of tries
1255: a return of 3 means it after the answer date
1256:
1257: =cut
1258:
1.117 albertel 1259: sub check_status {
1260: my ($id)=@_;
1.143 albertel 1261: if (!defined($id)) { $id=$Apache::inputtags::part; }
1.117 albertel 1262: my $curtime=&Apache::lonnet::EXT('system.time');
1263: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1264: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1265: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1266: if ( $opendate && $curtime > $opendate &&
1267: $duedate && $curtime > $duedate &&
1268: $answerdate && $curtime > $answerdate) {
1269: return 3;
1270: }
1271: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1272: if ($status =~ /^correct/) { return 1; }
1273: if (!$status) { return undef; }
1274: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1275: if ($maxtries eq '') { $maxtries=2; }
1276: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1277: if ($curtries < $maxtries) { return 0; }
1278: return 2;
1279: }
1280:
1.177 albertel 1281: =pod
1282:
1.210 raeburn 1283: =item setup_prior_tries_hash()
1.177 albertel 1284:
1285: Foreach each past .submission $func is called with 3 arguments
1286: - the mode to set things up for (currently always 'grade')
1287: - the stored .submission string
1288: - The expansion of $data
1289:
1290: $data is an array ref containing elements that are either
1291: - scalars that are other elements of the history hash to pass to $func
1292: - ref to data to be passed untouched to $func
1293:
1294: =cut
1295:
1.162 albertel 1296: sub setup_prior_tries_hash {
1297: my ($func,$data) = @_;
1298: my $part = $Apache::inputtags::part;
1299: my $id = $Apache::inputtags::response[-1];
1300: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1301: my $sub_key = "$i:resource.$part.$id.submission";
1302: next if (!exists($Apache::lonhomework::history{$sub_key}));
1303: my @other_data;
1304: foreach my $datum (@{ $data }) {
1305: if (ref($datum)) {
1306: push(@other_data,$datum);
1307: } else {
1308: my $info_key = "$i:resource.$part.$id.$datum";
1309: push(@other_data,$Apache::lonhomework::history{$info_key});
1310: }
1311: }
1312:
1313: my $output =
1314: &$func('grade',
1315: $Apache::lonhomework::history{$sub_key},
1316: \@other_data);
1317: if (defined($output)) {
1318: $Apache::inputtags::submission_display{$sub_key} = $output;
1319: }
1320: }
1321: }
1322:
1.1 albertel 1323: 1;
1324: __END__
1.38 albertel 1325:
1.208 jms 1326: =pod
1327:
1.209 www 1328: =cut
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