Annotation of loncom/homework/response.pm, revision 1.231
1.38 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # various response type definitons response definition
1.53 albertel 3: #
1.231 ! raeburn 4: # $Id: response.pm,v 1.230 2011/12/15 01:21:28 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:
1.218 raeburn 33: Apache::response.pm
1.208 jms 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;
1.228 raeburn 56: use Apache::inputtags();
1.153 www 57: use Apache::lonmaxima();
1.214 www 58: use Apache::lonr();
1.1 albertel 59:
1.57 harris41 60: BEGIN {
1.139 www 61: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse','customresponse','mathresponse'));
1.1 albertel 62: }
63:
1.13 albertel 64: sub start_response {
1.73 albertel 65: my ($parstack,$safeeval)=@_;
1.136 albertel 66: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.73 albertel 67: if ($#Apache::inputtags::import > -1) {
68: &Apache::lonxml::debug("Turning :$id: into");
69: $id = join('_',@Apache::inputtags::import).'_'.$id;
70: &Apache::lonxml::debug("New :$id:");
71: }
72: push (@Apache::inputtags::response,$id);
73: push (@Apache::inputtags::responselist,$id);
74: @Apache::inputtags::inputlist=();
1.101 albertel 75: if ($Apache::inputtags::part eq '' &&
76: !$Apache::lonhomework::ignore_response_errors) {
1.97 albertel 77: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
1.92 albertel 78: }
79: if ($Apache::inputtags::response_with_no_part &&
80: $Apache::inputtags::part ne '0') {
1.97 albertel 81: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
1.92 albertel 82: }
83: if ($Apache::inputtags::part eq '0') {
84: $Apache::inputtags::response_with_no_part=1;
85: }
1.73 albertel 86: return $id;
1.13 albertel 87: }
88:
89: sub end_response {
1.79 albertel 90: #pop @Apache::inputtags::response;
1.73 albertel 91: @Apache::inputtags::inputlist=();
92: return '';
1.13 albertel 93: }
94:
1.41 albertel 95: sub start_hintresponse {
1.73 albertel 96: my ($parstack,$safeeval)=@_;
1.136 albertel 97: my $id = &Apache::lonxml::get_id($parstack,$safeeval);
1.123 albertel 98: push (@Apache::inputtags::hint,$id);
99: push (@Apache::inputtags::hintlist,$id);
1.73 albertel 100: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
101: return $id;
1.41 albertel 102: }
103:
104: sub end_hintresponse {
1.123 albertel 105: pop @Apache::inputtags::hint;
1.73 albertel 106: if (defined($Apache::inputtags::paramstack[-1])) {
107: %Apache::inputtags::params=
108: @{ pop(@Apache::inputtags::paramstack) };
109: }
110: return '';
1.41 albertel 111: }
112:
1.99 albertel 113: my @randomseeds;
114: sub pushrandomnumber {
115: my $rand_alg=&Apache::lonnet::get_rand_alg();
116: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
117: $rand_alg eq '64bit2') {
118: # do nothing
119: } else {
120: my @seed=&Math::Random::random_get_seed();
1.127 albertel 121: push(@randomseeds,\@seed);
1.99 albertel 122: }
1.127 albertel 123: &Apache::response::setrandomnumber(@_);
1.99 albertel 124: }
125: sub poprandomnumber {
126: my $rand_alg=&Apache::lonnet::get_rand_alg();
127: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
128: $rand_alg eq '64bit2') {
129: return;
130: }
131: my $seed=pop(@randomseeds);
132: if ($seed) {
133: &Math::Random::random_set_seed(@$seed);
134: } else {
135: &Apache::lonxml::error("Unable to restore random algorithm.");
136: }
137: }
1.117 albertel 138:
1.26 albertel 139: sub setrandomnumber {
1.221 raeburn 140: my ($ignore_id2,$target,$rndseed) = @_;
141: if (!defined($rndseed)) {
142: $rndseed=&Apache::structuretags::setup_rndseed(undef,$target);
143: }
1.88 albertel 144: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
1.73 albertel 145: &Apache::lonxml::debug("randseed $rndseed");
146: # $rndseed=unpack("%32i",$rndseed);
1.99 albertel 147: my $rand_alg=&Apache::lonnet::get_rand_alg();
1.126 albertel 148: my ($rndmod,$rndmod2);
1.119 albertel 149:
150: my ($id1,$id2,$shift_amt);
151: if ($Apache::lonhomework::parsing_a_problem) {
152: $id1=$Apache::inputtags::part;
153: if (defined($Apache::inputtags::response[-1])) {
154: $id2=$Apache::inputtags::response[-1];
155: }
156: $shift_amt=scalar(@Apache::inputtags::responselist);
157: } elsif ($Apache::lonhomework::parsing_a_task) {
1.141 albertel 158: $id1=&Apache::bridgetask::get_dim_id();
159: if (!$ignore_id2 && ref($Apache::bridgetask::instance{$id1})) {
160: $id2=$Apache::bridgetask::instance{$id1}[-1];
1.142 albertel 161: $shift_amt=scalar(@{$Apache::bridgetask::instance{$id1}});
162: } else {
163: $shift_amt=0;
1.119 albertel 164: }
165: }
166: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
1.99 albertel 167: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
168: $rand_alg eq '64bit2') {
1.119 albertel 169: $rndmod=(&Apache::lonnet::numval($id1) << 10);
170: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
1.110 albertel 171: } elsif ($rand_alg eq '64bit3') {
1.119 albertel 172: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
173: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
1.126 albertel 174: } elsif ($rand_alg eq '64bit4') {
1.119 albertel 175: my $shift=(4*$shift_amt)%30;
176: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
177: if (defined($id2)) {
178: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
1.110 albertel 179: }
1.126 albertel 180: } else {
181: ($rndmod,$rndmod2)=&Apache::lonnet::digest("$id1,$id2");
1.99 albertel 182: }
1.224 www 183: $Apache::lonhomework::results{'resource.'.$id1.'.rawrndseed'}=$rndseed;
1.99 albertel 184: if ($rndseed =~/([,:])/) {
185: my $char=$1;
186: use integer;
187: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
188: $num1+=$rndmod;
1.126 albertel 189: $num2+= ((defined($rndmod2)) ? $rndmod2 : $rndmod);
1.109 albertel 190: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.99 albertel 191: $rndseed=$num1.$char.$num2;
192: } else {
1.74 albertel 193: $rndseed+=$rndmod;
1.109 albertel 194: if($Apache::lonnet::_64bit) {
195: use integer;
196: $rndseed=(($rndseed<<32)>>32);
197: }
1.74 albertel 198: }
1.111 albertel 199: &Apache::lonxml::debug("randseed $rndmod $rndseed");
1.223 www 200: $Apache::lonhomework::results{'resource.'.$id1.'.rndseed'}=$rndseed;
1.74 albertel 201: &Apache::lonnet::setup_random_from_rndseed($rndseed);
1.73 albertel 202: return '';
1.26 albertel 203: }
204:
1.7 www 205: sub meta_parameter_write {
1.38 albertel 206: my ($name,$type,$default,$display)=@_;
1.41 albertel 207: my $partref=$Apache::inputtags::part;
208: my $result='<parameter part="'.$Apache::inputtags::part.'"';
209: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 210: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
211: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 212: }
213: $result.= ' name="'.$name.'"'.
214: ' type="'.$type.'"'.
1.89 albertel 215: (defined($default)?' default="'.$default.'"':'').
216: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
1.41 albertel 217: .'></parameter>'
218: ."\n";
219: return $result;
1.33 www 220: }
221:
222: sub meta_package_write {
223: my $name=shift;
1.41 albertel 224: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
225: if(defined($Apache::inputtags::response[-1])) {
1.73 albertel 226: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
1.41 albertel 227: }
228: $result.=' package="'.$name.'"></parameter>'."\n";
229: return $result;
1.7 www 230: }
231:
232: sub meta_stores_write {
1.10 www 233: my ($name,$type,$display)=@_;
1.41 albertel 234: my $partref=$Apache::inputtags::part;
235: my $result = '<stores part="'.$Apache::inputtags::part.'"';
236: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 237: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
238: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 239: }
240: $result.= ' name="'.$name.'"'.
241: ' type="'.$type.'"'.
242: ' display="'.$display.' [Part: '.$partref.']"'.
243: "></stores>\n";
1.7 www 244: }
245:
1.207 jms 246: =pod
247:
1.210 raeburn 248: =item mandatory_part_meta()
1.207 jms 249:
250: Autogenerate metadata for mandatory
1.210 raeburn 251: input (from RAT or lonparmset) and
1.207 jms 252: output (to lonspreadsheet)
253: of each part
254:
255: Note: responseid-specific data 'submission' and 'awarddetail'
256: not available to spreadsheet -> skip here
257:
258: =cut
259:
1.210 raeburn 260:
261: sub mandatory_part_meta {
262: return &meta_package_write('part').
263: &meta_stores_write('solved','string','Problem Status').
264: &meta_stores_write('tries','int_zeropos','Number of Attempts').
265: &meta_stores_write('awarded','float','Partial Credit Factor');
1.86 albertel 266: }
267:
268: sub meta_part_order {
269: if (@Apache::inputtags::partlist) {
270: my @parts=@Apache::inputtags::partlist;
271: shift(@parts);
1.100 albertel 272: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
1.86 albertel 273: } else {
1.100 albertel 274: return '<partorder>0</partorder>'."\n";
275: }
276: }
277:
278: sub meta_response_order {
279: if (@Apache::inputtags::responselist) {
280: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
281: '</responseorder>'."\n";
1.86 albertel 282: }
1.14 albertel 283: }
284:
1.15 albertel 285: sub check_for_previous {
1.219 raeburn 286: my ($curresponse,$partid,$id,$last,$type) = @_;
1.73 albertel 287: my %previous;
288: $previous{'used'} = 0;
1.221 raeburn 289: my $questiontype = $Apache::lonhomework::type;
290: my $curr_rndseed = $env{'form.'.$partid.'.rndseed'};
1.73 albertel 291: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
1.212 raeburn 292: if ($key =~ /resource\.\Q$partid\E\.\Q$id\E\.submission$/) {
1.160 albertel 293: if ( $last && $key =~ /^(\d+):/ ) {
294: next if ($1 >= $last);
295: }
1.73 albertel 296: &Apache::lonxml::debug("Trying $key");
297: my $pastresponse=$Apache::lonhomework::history{$key};
298: if ($pastresponse eq $curresponse) {
299: my $history;
300: if ( $key =~ /^(\d+):/ ) {
1.221 raeburn 301: $history=$1;
302: next if ((($questiontype eq 'randomizetry') ||
303: ($Apache::lonhomework::history{"$history:resource.$partid.type"} eq 'randomizetry')) &&
304: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
1.73 albertel 305: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
306: $previous{'last'}='0';
307: push(@{ $previous{'version'} },$history);
308: } else {
1.221 raeburn 309: next if ((($questiontype eq 'randomizetry') ||
310: ($Apache::lonhomework::history{"resource.$partid.type"} eq 'randomizetry')) &&
311: ($curr_rndseed ne $Apache::lonhomework::history{"resource.$partid.rndseed"}));
1.73 albertel 312: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
313: $previous{'last'}='1';
314: }
1.221 raeburn 315: $previous{'used'} = 1;
1.73 albertel 316: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
1.209 www 317: if ($previous{'award'} eq 'INTERNAL_ERROR') { $previous{'used'}=0; }
1.73 albertel 318: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
1.219 raeburn 319: } elsif ($type eq 'ci') {
320: if (lc($pastresponse) eq lc($curresponse)) {
321: if ($key =~ /^(\d+):/) {
1.221 raeburn 322: my $history = $1;
323: next if (($questiontype eq 'randomizetry') &&
324: ($curr_rndseed ne $Apache::lonhomework::history{"$history:resource.$partid.rndseed"}));
325: push (@{$previous{'versionci'}},$history);
1.225 raeburn 326: $previous{'awardci'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
1.219 raeburn 327: $previous{'usedci'} = 1;
328: }
329: }
330: }
1.32 albertel 331: }
1.73 albertel 332: }
333: &Apache::lonhomework::showhash(%previous);
334: return %previous;
1.54 albertel 335: }
336:
337: sub handle_previous {
1.73 albertel 338: my ($previous,$ad)=@_;
339: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
340: if ($$previous{'last'}) {
341: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
1.107 albertel 342: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.217 raeburn 343: } elsif (($Apache::lonhomework::type ne 'survey') &&
344: ($Apache::lonhomework::type ne 'surveycred') &&
345: ($Apache::lonhomework::type ne 'anonsurvey') &&
1.221 raeburn 346: ($Apache::lonhomework::type ne 'anonsurveycred')) {
1.73 albertel 347: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
1.107 albertel 348: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.73 albertel 349: }
1.54 albertel 350: }
1.44 albertel 351: }
352:
1.45 albertel 353: sub view_or_modify {
1.149 albertel 354: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.73 albertel 355: my $myself=0;
1.120 albertel 356: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
1.73 albertel 357: $myself=1;
358: }
359: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
360: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
361: if ($mgr) { return "M"; }
362: if ($vgr) { return "V"; }
363: if ($myself) { return "V"; }
364: return '';
1.45 albertel 365: }
366:
1.44 albertel 367: sub start_dataresponse {
1.73 albertel 368: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
369: my $id = &Apache::response::start_response($parstack,$safeeval);
370: my $result;
371: if ($target eq 'web') {
372: $result = $token->[2]->{'display'}.':';
373: } elsif ($target eq 'meta') {
374: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
375: $token->[2]->{'type'},
376: $token->[2]->{'display'});
377: $result .= &Apache::response::meta_package_write('dataresponse');
378: }
379: return $result;
1.44 albertel 380: }
381:
382: sub end_dataresponse {
1.73 albertel 383: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
384: my $result;
385: if ( $target eq 'web' ) {
386: } elsif ($target eq 'grade' ) {
1.120 albertel 387: if ( defined $env{'form.submitted'}) {
1.149 albertel 388: my ($symb,$courseid,$domain,$name)=&Apache::lonnet::whichuser();
1.73 albertel 389: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
390: if ($allowed) {
1.94 albertel 391: &Apache::response::setup_params('dataresponse',$safeeval);
1.73 albertel 392: my $partid = $Apache::inputtags::part;
393: my $id = $Apache::inputtags::response['-1'];
1.120 albertel 394: my $response = $env{'form.HWVAL_'.$id};
1.73 albertel 395: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
396: if ( $response =~ /[^\s]/) {
397: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
398: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
399: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
400: }
401: } else {
402: $result='Not Permitted to change values.'
403: }
1.45 albertel 404: }
1.73 albertel 405: }
406: &Apache::response::end_response;
407: return $result;
1.3 albertel 408: }
409:
1.129 albertel 410: sub start_customresponse {
1.128 albertel 411: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
412: my $id = &Apache::response::start_response($parstack,$safeeval);
1.129 albertel 413: push(@Apache::lonxml::namespace,'customresponse');
1.128 albertel 414: my $result;
1.157 www 415: @Apache::response::custom_answer=();
416: @Apache::response::custom_answer_type=();
1.128 albertel 417: &Apache::lonxml::register('Apache::response',('answer'));
418: if ($target eq 'web') {
419: if ( &Apache::response::show_answer() ) {
420: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
421: $safeeval);
1.152 albertel 422: $Apache::inputtags::answertxt{$id}=[$answer];
1.128 albertel 423: }
424: } elsif ($target eq 'edit') {
425: $result.=&Apache::edit::tag_start($target,$token);
426: $result.=&Apache::edit::text_arg('String to display for answer:',
1.220 www 427: 'answerdisplay',$token,'50');
1.128 albertel 428: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
429: } elsif ($target eq 'modified') {
430: my $constructtag;
431: $constructtag=&Apache::edit::get_new_args($token,$parstack,
432: $safeeval,'answerdisplay');
433: if ($constructtag) {
434: $result = &Apache::edit::rebuild_tag($token);
435: }
436: } elsif ($target eq 'answer' || $target eq 'grade') {
437: &Apache::response::reset_params();
438: } elsif ($target eq 'meta') {
1.129 albertel 439: $result .= &Apache::response::meta_package_write('customresponse');
1.128 albertel 440: }
441: return $result;
442: }
443:
1.129 albertel 444: sub end_customresponse {
1.128 albertel 445: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
446: my $result;
447: my $part=$Apache::inputtags::part;
448: my $id=$Apache::inputtags::response[-1];
449: if ( $target eq 'grade' && &Apache::response::submitted() ) {
450: my $response = &Apache::response::getresponse();
1.146 albertel 451: if ($Apache::lonhomework::type eq 'exam' ||
452: &Apache::response::submitted('scantron')) {
453: &Apache::response::scored_response($part,$id);
454: } elsif ( $response =~ /[^\s]/ &&
1.158 www 455: $Apache::response::custom_answer_type[-1] eq 'loncapa/perl') {
1.128 albertel 456: if (!$Apache::lonxml::default_homework_loaded) {
457: &Apache::lonxml::default_homework_load($safeeval);
458: }
459: my %previous = &Apache::response::check_for_previous($response,
460: $part,$id);
461: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
462: $response;
463: my $error;
1.129 albertel 464: ${$safeeval->varglob('LONCAPA::customresponse_submission')}=
1.128 albertel 465: $response;
466:
1.216 www 467: my ($award,$score) = &Apache::run::run('{ my $submission=$LONCAPA::customresponse_submission;'.$Apache::response::custom_answer[-1].'}',$safeeval);
1.128 albertel 468: if (!&Apache::inputtags::valid_award($award)) {
469: $error = $award;
470: $award = 'ERROR';
471: }
472: &Apache::response::handle_previous(\%previous,$award);
473: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
474: $award;
1.216 www 475: if ($award eq 'ASSIGNED_SCORE') {
476: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=1.0*$score;
477: }
1.128 albertel 478: if ($error) {
479: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
480: $error;
481: }
482: }
1.146 albertel 483: } elsif ( $target eq 'answer') {
484: $result = &Apache::response::answer_header('customresponse');
485: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
486: $safeeval);
487: if ($env{'form.answer_output_mode'} ne 'tex') {
488: $answer = '<b>'.$answer.'</b>';
489: }
490: $result .= &Apache::response::answer_part('customresponse',$answer);
491: $result .= &Apache::response::answer_footer('customresponse');
492: }
1.163 albertel 493: if ($target eq 'web') {
1.229 raeburn 494: &setup_prior_tries_hash(\&format_prior_response_custom);
1.163 albertel 495: }
1.146 albertel 496: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
497: $target eq 'tex' || $target eq 'analyze') {
1.227 raeburn 498: my $repetition = &repetition();
499: &Apache::lonxml::increment_counter($repetition,"$part.$id");
1.179 foxr 500: if ($target eq 'analyze') {
1.187 raeburn 501: $Apache::lonhomework::analyze{"$part.$id.type"} = 'customresponse';
1.179 foxr 502: &Apache::lonhomework::set_bubble_lines();
503: }
1.128 albertel 504: }
505: pop(@Apache::lonxml::namespace);
1.157 www 506: pop(@Apache::response::custom_answer);
507: pop(@Apache::response::custom_answer_type);
1.128 albertel 508: &Apache::lonxml::deregister('Apache::response',('answer'));
509: &Apache::response::end_response();
510: return $result;
511: }
512:
1.163 albertel 513: sub format_prior_response_custom {
514: my ($mode,$answer) =@_;
1.229 raeburn 515: if (ref($answer) eq 'ARRAY') {
516: $answer = '('.join(', ', @{ $answer }).')';
517: }
1.163 albertel 518: return '<span class="LC_prior_custom">'.
519: &HTML::Entities::encode($answer,'"<>&').'</span>';
520: }
1.140 www 521:
1.139 www 522: sub start_mathresponse {
1.140 www 523: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
524: my $id = &Apache::response::start_response($parstack,$safeeval);
525: push(@Apache::lonxml::namespace,'mathresponse');
1.139 www 526: my $result;
1.157 www 527: @Apache::response::custom_answer=();
528: @Apache::response::custom_answer_type=();
1.140 www 529: &Apache::lonxml::register('Apache::response',('answer'));
530: if ($target eq 'web') {
531: if ( &Apache::response::show_answer() ) {
532: my $answer = &Apache::lonxml::get_param('answerdisplay',$parstack,
533: $safeeval);
1.152 albertel 534: $Apache::inputtags::answertxt{$id}=[$answer];
1.140 www 535: }
1.191 www 536:
1.140 www 537: } elsif ($target eq 'edit') {
538: $result.=&Apache::edit::tag_start($target,$token);
539: $result.=&Apache::edit::text_arg('String to display for answer:',
1.220 www 540: 'answerdisplay',$token,'50');
1.150 www 541: $result.=&Apache::edit::select_arg('Algebra System:',
542: 'cas',
1.214 www 543: ['maxima','R'],
1.150 www 544: $token);
545: $result.=&Apache::edit::text_arg('Argument Array:',
1.193 www 546: 'args',$token).
547: &Apache::loncommon::help_open_topic('Maxima_Argument_Array');
1.192 www 548: $result.=&Apache::edit::text_arg('Libraries:',
1.193 www 549: 'libraries',$token).
550: &Apache::loncommon::help_open_topic('Maxima_Libraries');
1.140 www 551: $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
552: } elsif ($target eq 'modified') {
553: my $constructtag;
554: $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.192 www 555: $safeeval,'answerdisplay','cas','args','libraries');
1.140 www 556: if ($constructtag) {
557: $result = &Apache::edit::rebuild_tag($token);
558: }
559: } elsif ($target eq 'answer' || $target eq 'grade') {
560: &Apache::response::reset_params();
561: } elsif ($target eq 'meta') {
562: $result .= &Apache::response::meta_package_write('mathresponse');
1.139 www 563: }
564: return $result;
565: }
566:
1.191 www 567: sub edit_mathresponse_button {
568: my ($id,$field)=@_;
569: my $button=&mt('Edit Answer');
1.201 riegler 570: # my $helplink=&Apache::loncommon::help_open_topic('Formula_Editor');
1.197 riegler 571: my $iconpath=$Apache::lonnet::perlvar{'lonIconsURL'};
1.191 www 572: return(<<ENDFORMULABUTTON);
1.213 bisitz 573: <script type="text/javascript" language="JavaScript">
1.191 www 574: function edit_${id}_${field} (textarea) {
575: thenumber = textarea;
576: thedata = document.forms['lonhomework'].elements[textarea].value;
577: newwin = window.open("/adm/dragmath/applet/MaximaPopup.html","","width=565,height=400,resizable");
578: }
579: </script>
1.215 bisitz 580: <a href="javascript:edit_${id}_${field}('${field}');void(0);"><img class="stift" src="$iconpath/stift.gif" alt="$button" title="$button" /></a>
1.191 www 581: ENDFORMULABUTTON
582: }
583:
1.139 www 584: sub end_mathresponse {
1.140 www 585: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
586: my $result;
587: my $part=$Apache::inputtags::part;
588: my $id=$Apache::inputtags::response[-1];
589: if ( $target eq 'grade' && &Apache::response::submitted() ) {
590: my $response = &Apache::response::getresponse();
1.150 www 591: if ( $response =~ /[^\s]/ ) {
1.140 www 592: if (!$Apache::lonxml::default_homework_loaded) {
593: &Apache::lonxml::default_homework_load($safeeval);
594: }
595: my %previous = &Apache::response::check_for_previous($response,
596: $part,$id);
597: $Apache::lonhomework::results{"resource.$part.$id.submission"}=
598: $response;
599: my $error;
1.155 www 600: my $award;
601: my $cas = &Apache::lonxml::get_param('cas',$parstack,$safeeval);
602: if ($cas eq 'maxima') {
603: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
1.192 www 604: $award=&Apache::lonmaxima::maxima_run($Apache::response::custom_answer[-1],$response,$args,
605: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
1.155 www 606: }
1.214 www 607: if ($cas eq 'R') {
608: my $args = [&Apache::lonxml::get_param_var('args',$parstack,$safeeval)];
609: $award=&Apache::lonr::r_run($Apache::response::custom_answer[-1],$response,$args,
610: &Apache::lonxml::get_param('libraries',$parstack,$safeeval));
611: }
612:
1.140 www 613: if (!&Apache::inputtags::valid_award($award)) {
1.151 albertel 614: $error = $award;
615: $award = 'ERROR';
1.140 www 616: }
617: &Apache::response::handle_previous(\%previous,$award);
618: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
619: $award;
620: if ($error) {
621: $Apache::lonhomework::results{"resource.$part.$id.awardmsg"}=
622: $error;
623: }
624: }
625: }
1.163 albertel 626: if ($target eq 'web') {
627: &setup_prior_tries_hash(\&format_prior_response_math);
1.203 riegler 628: my $partid = $Apache::inputtags::part;
629: my $id = $Apache::inputtags::response[-1];
630: if (($Apache::inputtags::status['-1'] eq 'CAN_ANSWER')
1.205 raeburn 631: && (&Apache::lonnet::EXT('resource.'.$partid.'_'.$id.'.turnoffeditor') ne 'yes')) {
1.202 riegler 632: $result.=&edit_mathresponse_button($id,"HWVAL_$id");
633: }
1.163 albertel 634: }
635:
1.140 www 636: pop(@Apache::lonxml::namespace);
1.157 www 637: pop(@Apache::response::custom_answer);
638: pop(@Apache::response::custom_answer_type);
1.140 www 639: &Apache::lonxml::deregister('Apache::response',('answer'));
640: &Apache::response::end_response();
641: return $result;
1.139 www 642: }
643:
1.163 albertel 644: sub format_prior_response_math {
645: my ($mode,$answer) =@_;
646: return '<span class="LC_prior_math">'.
647: &HTML::Entities::encode($answer,'"<>&').'</span>';
648: }
649:
1.156 www 650: sub implicit_multiplication {
651: my ($expression)=@_;
652: # Escape scientific notation, so 3e8 does not become 3*e*8
653: # 3e8 -> 3&8; 3e-8 -> 3&-8; 3E+8 -> e&+8
654: $expression=~s/(\d+)e([\+\-]*\d+)/$1\&\($2\)/gsi;
655: # 3x10^8 -> 3&8; 3*10^-8 -> 3&-8
656: $expression=~s/(\d+)(?:x|\*)10(?:\^|\*\*)([\+\-]*\d+)/$1\&\($2\)/gsi;
657: # Fill in multiplication signs
658: # a b -> a*b;3 b -> 3*b;3 4 -> 3*4
1.176 albertel 659: $expression=~s/([A-Za-z0-9])\s+(?=[A-Za-z0-9])/$1\*/gs;
1.156 www 660: # )( -> )*(; ) ( -> )*(
661: $expression=~s/\)\s*\(/\)\*\(/gs;
662: # 3a -> 3*a; 3( -> 3*(; 3 ( -> 3*(; 3A -> 3*A
663: $expression=~s/(\d)\s*([a-zA-Z\(])/$1\*$2/gs;
664: # a ( -> a*(
1.174 riegler 665: $expression=~s/([A-Za-z0-9])\s+\(/$1\*\(/gs;
1.156 www 666: # )a -> )*a; )3 -> )*3; ) 3 -> )*3
1.174 riegler 667: $expression=~s/\)\s*([A-Za-z0-9])/\)\*$1/gs;
1.156 www 668: # 3&8 -> 3e8; 3&-4 -> 3e-4
669: $expression=~s/(\d+)\&\(([\+\-]*\d+)\)/$1e$2/gs;
670: return $expression;
671: }
1.140 www 672:
1.128 albertel 673: sub start_answer {
674: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
675: my $result;
1.157 www 676: push(@Apache::response::custom_answer,
677: &Apache::lonxml::get_all_text_unbalanced("/answer",$parser));
678: push(@Apache::response::custom_answer_type,
679: lc(&Apache::lonxml::get_param('type',$parstack,$safeeval)));
680: $Apache::response::custom_answer_type[-1] =~ s/\s+//g;
1.128 albertel 681: if ($target eq "edit" ) {
682: $result=&Apache::edit::tag_start($target,$token,'Answer algorithm');
683: $result.=&Apache::edit::editfield($token->[1],
1.158 www 684: $Apache::response::custom_answer[-1],
1.128 albertel 685: '',80,4);
686: } elsif ( $target eq "modified" ) {
687: $result=$token->[4].&Apache::edit::modifiedfield('/answer',$parser);
688: }
689: return $result;
690: }
691:
692: sub end_answer {
693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
694: if ($target eq 'edit' ) {
695: return &Apache::edit::end_table();
696: }
697: }
698:
1.83 albertel 699: sub decide_package {
700: my ($tagstack)=@_;
701: my $package;
702: if ($$tagstack[-1] eq 'parameter') {
703: $package='part';
704: } else {
705: my $i=-1;
706: while (defined($$tagstack[$i])) {
707: if ($$tagstack[$i] =~ /(response|hint)$/) {
708: $package=$$tagstack[$i];
709: last;
710: }
711: $i--;
712: }
713: }
714: return $package;
715: }
716:
1.3 albertel 717: sub start_responseparam {
1.73 albertel 718: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
719: my $result='';
720: if ($target eq 'meta') {
721: $result = &meta_parameter_write($token->[2]->{'name'},
722: $token->[2]->{'type'},
723: $token->[2]->{'default'},
724: $token->[2]->{'description'});
725: } elsif ($target eq 'edit') {
726: $result.=&Apache::edit::tag_start($target,$token);
1.83 albertel 727: my $optionlist;
728: my $package=&decide_package($tagstack);
729: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
730: if ($key =~ /^\Q$package\E&(.*)&display$/) {
731: $optionlist.='<option value="'.$1.'">'.
732: $Apache::lonnet::packagetab{$key}.'</option>';
733: }
734: }
735: if (defined($optionlist)) {
1.206 bisitz 736: $result.=&mt('Use template:').' <select name="'.
1.83 albertel 737: &Apache::edit::html_element_name('parameter_package').'">'.
738: '<option value=""></option>'.$optionlist.'</select><br />';
739: }
1.73 albertel 740: $result.=&Apache::edit::text_arg('Name:','name',$token).
741: &Apache::edit::text_arg('Type:','type',$token).
742: &Apache::edit::text_arg('Description:','description',$token).
743: &Apache::edit::text_arg('Default:','default',$token).
744: "</td></tr>";
745: $result.=&Apache::edit::end_table;
746: } elsif ($target eq 'modified') {
1.83 albertel 747: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
748: $safeeval,'name','type',
749: 'description','default');
750: my $element=&Apache::edit::html_element_name('parameter_package');
1.120 albertel 751: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
752: my $name=$env{"form.$element"};
1.83 albertel 753: my $tag=&decide_package($tagstack);
754: $token->[2]->{'name'}=$name;
755: $token->[2]->{'type'}=
756: $Apache::lonnet::packagetab{"$tag&$name&type"};
757: $token->[2]->{'description'}=
758: $Apache::lonnet::packagetab{"$tag&$name&display"};
759: $token->[2]->{'default'}=
760: $Apache::lonnet::packagetab{"$tag&$name&default"};
1.186 raeburn 761: $token->[3] = ['name','type','description','default'];
1.83 albertel 762: $constructtag=1;
763: }
1.73 albertel 764: if ($constructtag) {
765: $result = &Apache::edit::rebuild_tag($token);
766: }
767: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
768: $target eq 'tex' || $target eq 'analyze' ) {
1.120 albertel 769: if ($env{'request.state'} eq 'construct') {
1.73 albertel 770: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
771: my $default=&Apache::lonxml::get_param('default',$parstack,
772: $safeeval);
773: if ($name) {$Apache::inputtags::params{$name}=$default;}
774: }
1.52 albertel 775: }
1.73 albertel 776: return $result;
1.3 albertel 777: }
778:
779: sub end_responseparam {
1.73 albertel 780: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
781: if ($target eq 'edit') { return ('','no'); }
782: return '';
1.55 albertel 783: }
784:
785: sub start_parameter {
1.114 albertel 786: return &start_responseparam(@_);
1.55 albertel 787: }
788:
789: sub end_parameter {
1.114 albertel 790: return &end_responseparam(@_);
1.42 albertel 791: }
792:
1.67 albertel 793: sub reset_params {
794: %Apache::inputtags::params=();
795: }
796:
1.42 albertel 797: sub setup_params {
1.94 albertel 798: my ($tag,$safeeval) = @_;
1.42 albertel 799:
1.120 albertel 800: if ($env{'request.state'} eq 'construct') { return; }
1.73 albertel 801: my %paramlist=();
802: foreach my $key (keys(%Apache::lonnet::packagetab)) {
1.161 albertel 803: if ($key =~ /^\Q$tag\E/) {
1.73 albertel 804: my ($package,$name) = split(/&/,$key);
805: $paramlist{$name}=1;
806: }
1.42 albertel 807: }
1.73 albertel 808: foreach my $key (keys(%paramlist)) {
809: my $entry= 'resource.'.$Apache::inputtags::part;
810: if (defined($Apache::inputtags::response[-1])) {
811: $entry.='_'.$Apache::inputtags::response[-1];
812: }
813: $entry.='.'.$key;
814: &Apache::lonxml::debug("looking for $entry");
815: my $value = &Apache::lonnet::EXT("$entry");
816: &Apache::lonxml::debug("$key has value :$value:");
817: if ($value eq 'con_lost' || $value =~ /^error:/) {
818: &Apache::lonxml::debug("using nothing");
819: $Apache::inputtags::params{$key}='';
820: } else {
1.94 albertel 821: my $string="{return qq\0".$value."\0}";
822: my $newvalue=&Apache::run::run($string,$safeeval,1);
823: if (defined($newvalue)) { $value=$newvalue; }
1.73 albertel 824: $Apache::inputtags::params{$key}=$value;
825: }
1.42 albertel 826: }
1.48 albertel 827: }
828:
1.132 albertel 829: {
830: my @answer_bits;
1.147 albertel 831: my $need_row_start;
1.132 albertel 832:
1.48 albertel 833: sub answer_header {
1.147 albertel 834: my ($type,$increment,$rows) = @_;
1.73 albertel 835: my $result;
1.120 albertel 836: if ($env{'form.answer_output_mode'} eq 'tex') {
1.132 albertel 837: undef(@answer_bits);
1.133 albertel 838: my $bit;
839: if ($Apache::lonhomework::type eq 'exam') {
840: $bit = ($Apache::lonxml::counter+$increment).') ';
841: } else {
842: $bit .= ' Answer for Part: \verb|'.
843: $Apache::inputtags::part.'| ';
844: }
845: push(@answer_bits,$bit);
1.73 albertel 846: } else {
1.147 albertel 847: my $td = '<td '.(defined($rows)?'rowspan="'.$rows.'"':'').'>';
1.132 albertel 848: $result = '<table border="1"><tr>';
849: if ($Apache::lonhomework::type eq 'exam') {
1.147 albertel 850: $result .= $td.($Apache::lonxml::counter+$increment). ')</td>';
1.132 albertel 851: } else {
1.147 albertel 852: $result .= $td.&mt('Answer for Part: [_1]',
853: $Apache::inputtags::part).'</td>';
1.132 albertel 854: }
855: $result .= "\n";
1.147 albertel 856: $need_row_start = 0;
857: }
858: return $result;
859: }
860:
861: sub next_answer {
862: my ($type) = @_;
863: my $result;
864: if ($env{'form.answer_output_mode'} eq 'tex') {
865: # FIXME ... need to do something with tex mode
866: } else {
867: $result .= "</tr>";
868: $need_row_start = 1;
1.73 albertel 869: }
870: return $result;
1.48 albertel 871: }
872:
873: sub answer_part {
1.148 albertel 874: my ($type,$answer,$args) = @_;
1.73 albertel 875: my $result;
1.120 albertel 876: if ($env{'form.answer_output_mode'} eq 'tex') {
1.148 albertel 877: if (!$args->{'no_verbatim'}) {
878: my $to_use='|';
879: foreach my $value (32..126) {
880: my $char=pack('c',$value);
881: if ($answer !~ /\Q$char\E/) {
882: $to_use=$char;
883: last;
884: }
885: }
1.189 www 886: my $fullanswer=$answer;
1.188 www 887: $answer='';
1.189 www 888: foreach my $element (split(/[\;]/,$fullanswer)) {
889: if ($element ne '') {
890: $answer.= '\verb'.$to_use.$element.$to_use.' \newline';
891: }
1.188 www 892: }
1.124 albertel 893: }
1.132 albertel 894: if ($answer ne '') {
1.148 albertel 895: push(@answer_bits,$answer);
1.132 albertel 896: }
1.73 albertel 897: } else {
1.147 albertel 898: if ($need_row_start) {
899: $result .= '<tr>';
900: $need_row_start = 0;
901: }
1.189 www 902: $result .= '<td>'.$answer.'</td>';
1.73 albertel 903: }
904: return $result;
1.48 albertel 905: }
906:
907: sub answer_footer {
1.73 albertel 908: my ($type) = @_;
909: my $result;
1.120 albertel 910: if ($env{'form.answer_output_mode'} eq 'tex') {
1.189 www 911: $result = ' \vskip 0 mm \noindent \begin{tabular}{|p{1.5cm}|p{6.8cm}|}\hline ';
912: $result .= $answer_bits[0].'&\vspace*{-4mm}\begin{itemize}';
913: for (my $i=1;$i<=$#answer_bits;$i++) {
914: $result.='\item '.$answer_bits[$i].'\vspace*{-7mm}';
915: }
916: $result .= ' \end{itemize} \\\\ \hline \end{tabular} \vskip 0 mm ';
1.73 albertel 917: } else {
1.185 albertel 918: if (!$need_row_start) {
919: $result .= '</tr>';
920: }
921: $result .= '</table>';
1.73 albertel 922: }
923: return $result;
1.1 albertel 924: }
1.2 albertel 925:
1.132 albertel 926: }
927:
1.62 albertel 928: sub showallfoils {
1.120 albertel 929: if (defined($env{'form.showallfoils'})) {
1.149 albertel 930: my ($symb)=&Apache::lonnet::whichuser();
1.120 albertel 931: if (($env{'request.state'} eq 'construct') ||
932: ($env{'user.adv'} && $symb eq '') ||
1.118 foxr 933: ($Apache::lonhomework::viewgrades) ) {
1.102 albertel 934: return 1;
935: }
1.73 albertel 936: }
1.108 albertel 937: if ($Apache::lonhomework::type eq 'survey') { return 1; }
1.217 raeburn 938: if ($Apache::lonhomework::type eq 'surveycred') { return 1; }
939: if ($Apache::lonhomework::type eq 'anonsurvey') { return 1; }
940: if ($Apache::lonhomework::type eq 'anonsurveycred') { return 1; }
941:
1.102 albertel 942: return 0;
1.70 albertel 943: }
944:
1.168 albertel 945: =pod
946:
1.210 raeburn 947: =item &getresponse();
1.168 albertel 948:
949: Retreives the current submitted response, helps out in the case of
950: scantron mode.
951:
952: Returns either the exact text of the submission, or a bubbled response
953: converted to something usable.
954:
955: Optional Arguments:
1.171 albertel 956: $offset - (defaults to 1) if a problem has more than one bubble
957: response, pass in the number of the bubble wanted, (the
958: first bubble associated with a problem has an offset of 1,
959: the second bubble is 2
960:
1.168 albertel 961: $resulttype - undef -> a number between 0 and 25
962: 'A is 1' -> a number between 1 and 26
963: 'letter' -> a letter between 'A' and 'Z'
1.172 foxr 964: $lines - undef problem only needs a single line of bubbles.
965: nonzero Problem wants the first nonempty response in
966: $lines lines of bubbles.
967: $bubbles_per_line - Must be provided if lines is defined.. number of
968: bubbles on a line.
1.173 albertel 969:
1.168 albertel 970: =cut
971:
1.70 albertel 972: sub getresponse {
1.172 foxr 973: my ($offset,$resulttype, $lines, $bubbles_per_line)=@_;
1.70 albertel 974: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
975: my $response;
1.168 albertel 976: if (!defined($offset)) {
1.170 albertel 977: $offset=1;
1.70 albertel 978: } else {
1.168 albertel 979: $formparm.=":$offset";
1.70 albertel 980: }
1.172 foxr 981: if (!defined($lines)) {
982: $lines = 1;
983: }
1.70 albertel 984: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
985: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
986: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
987: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
1.120 albertel 988: if ($env{'form.submitted'} eq 'scantron') {
1.71 albertel 989: my $part = $Apache::inputtags::part;
990: my $id = $Apache::inputtags::response[-1];
1.172 foxr 991:
992: my $line;
1.211 raeburn 993: my $startline = $env{'form.scantron_questnum_start.'.$part.'.'.$id};
994: if (!$startline) {
995: $startline = $Apache::lonxml::counter;
996: }
1.172 foxr 997: for ($line = 0; $line < $lines; $line++) {
1.211 raeburn 998: my $theline = $startline+$offset-1+$line;
1.184 foxr 999: $response = $env{"scantron.$theline.answer"};
1000: if ((defined($response)) && ($response ne "") && ($response ne " ")) {
1.172 foxr 1001: last;
1002: }
1.211 raeburn 1003:
1.172 foxr 1004: }
1.178 albertel 1005:
1006: # save bubbled letter for later
1007: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
1008: $response;
1.90 albertel 1009: if ($resulttype ne 'letter') {
1.226 raeburn 1010: $response = $let_to_num{$response};
1011: if ($resulttype eq 'A is 1') {
1012: if ($response ne "") {
1013: $response = $response+1;
1014: }
1.104 albertel 1015: }
1.172 foxr 1016: if ($response ne "") {
1017: $response += $line * $bubbles_per_line;
1018: }
1019: } else {
1020: if ($response ne "") {
1.226 raeburn 1021: my $raw = $response;
1.172 foxr 1022: $response = chr(ord($response) + $line * $bubbles_per_line);
1023: }
1.90 albertel 1024: }
1.172 foxr 1025:
1.70 albertel 1026: } else {
1.120 albertel 1027: $response = $env{$formparm};
1.70 albertel 1028: }
1.172 foxr 1029: #
1030: # If we have a nonempty answer, correct the numeric value
1031: # of the answer for the line on which it was found.
1032: #
1033:
1.70 albertel 1034: return $response;
1.62 albertel 1035: }
1.71 albertel 1036:
1.168 albertel 1037: =pod
1038:
1039: =item &repetition();
1040:
1.227 raeburn 1041: In scalar context:
1042:
1043: returns: the number of lines that are required to encode the weight.
1.226 raeburn 1044: (Default is for 10 bubbles per bubblesheet item; other (integer)
1045: values can be specified by using a custom Bubblesheet format file
1046: with an eighteenth entry (BubblesPerRow) set to the integer
1047: appropriate for the bubblesheets which will be used to assign weights.
1.168 albertel 1048:
1.227 raeburn 1049: In array context:
1050:
1051: returns: number of lines required to encode weight, and bubbles/line.
1052:
1.168 albertel 1053: =cut
1054:
1.71 albertel 1055: sub repetition {
1056: my $id = $Apache::inputtags::part;
1057: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.121 albertel 1058: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1.226 raeburn 1059: my $bubbles_per_row;
1060: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1061: ($env{'form.bubbles_per_row'} > 0)) {
1062: $bubbles_per_row = $env{'form.bubbles_per_row'};
1063: } else {
1064: $bubbles_per_row = 10;
1065: }
1.227 raeburn 1066: my $denominator = $bubbles_per_row;
1067: if (($env{'form.scantron_lastbubblepoints'} == 0) &&
1068: ($bubbles_per_row > 1)) {
1069: $denominator = $bubbles_per_row - 1;
1070: }
1071: my $repetition = int($weight/$denominator);
1072: if ($weight % $denominator != 0) { $repetition++; }
1073: if (wantarray) {
1074: return ($repetition,$bubbles_per_row);
1075: }
1.72 albertel 1076: return $repetition;
1.227 raeburn 1077:
1.72 albertel 1078: }
1079:
1.168 albertel 1080: =pod
1081:
1.210 raeburn 1082: =item &scored_response();
1.168 albertel 1083:
1084: Sets the results hash elements
1085:
1086: resource.$part_id.$response_id.awarded - to the floating point
1087: number between 0 and 1 that was awarded on the bubbled input
1088:
1089: resource.$part_id.$response_id.awarddetail - to 'ASSIGNED_SCORE'
1090:
1091: Returns
1092:
1093: the number of bubble sheet lines that were used (and likely need to
1094: be passed to &Apache::lonxml::increment_counter()
1095:
1096: Arguments
1097:
1098: $part_id - id of the part to grade
1099: $response_id - id of the response to grade
1100:
1101:
1102: =cut
1103:
1.72 albertel 1104: sub scored_response {
1105: my ($part,$id)=@_;
1106: my $repetition=&repetition();
1.227 raeburn 1107: my $bubbles_per_row;
1108: if (($env{'form.bubbles_per_row'} =~ /^\d+$/) &&
1109: ($env{'form.bubbles_per_row'} > 0)) {
1110: $bubbles_per_row = $env{'form.bubbles_per_row'};
1111: } else {
1112: $bubbles_per_row = 10;
1113: }
1.72 albertel 1114: my $score=0;
1115: for (my $i=0;$i<$repetition;$i++) {
1.227 raeburn 1116: # A is 1, B is 2, etc.
1.72 albertel 1117: my $increase=&Apache::response::getresponse($i+1);
1.227 raeburn 1118: unless (($increase == $bubbles_per_row-1) &&
1119: ($env{'form.scantron_lastbubblepoints'} == 0)) {
1120: # (get response return 0-9 and then we add 1)
1121: if ($increase ne '') {
1122: $score+=$increase+1;
1123: }
1124: }
1.72 albertel 1125: }
1126: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1.91 albertel 1127: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1.72 albertel 1128: my $pcr=$score/$weight;
1129: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
1130: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
1131: 'ASSIGNED_SCORE';
1.71 albertel 1132: return $repetition;
1.78 albertel 1133: }
1134:
1135: sub whichorder {
1.221 raeburn 1136: my ($max,$randomize,$showall,$hash,$rndseed)=@_;
1.78 albertel 1137: #&Apache::lonxml::debug("man $max randomize $randomize");
1138: if (!defined(@{ $$hash{'names'} })) { return; }
1.231 ! raeburn 1139: my @names;
! 1140: if (ref($hash->{'names'}) eq 'ARRAY') {
! 1141: @names = @{$hash->{'names'}};
! 1142: }
! 1143: return if (!@names);
1.78 albertel 1144: my @whichopt =();
1145: my (%top,@toplist,%bottom,@bottomlist);
1146: if (!($showall || ($randomize eq 'no'))) {
1147: my $current=0;
1148: foreach my $name (@names) {
1149: $current++;
1150: if ($$hash{"$name.location"} eq 'top') {
1151: $top{$name}=$current;
1152: } elsif ($$hash{"$name.location"} eq 'bottom') {
1153: $bottom{$name}=$current;
1154: }
1155: }
1156: }
1157: my $topcount=0;
1158: my $bottomcount=0;
1159: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
1160: && ($#names > -1)) {
1161: #&Apache::lonxml::debug("Have $#whichopt max is $max");
1162: my $aopt;
1163: if ($showall || ($randomize eq 'no')) {
1164: $aopt=0;
1165: } else {
1166: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
1167: }
1168: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
1169: $aopt=splice(@names,$aopt,1);
1170: #&Apache::lonxml::debug("Picked $aopt");
1171: if ($top{$aopt}) {
1172: $toplist[$top{$aopt}]=$aopt;
1173: $topcount++;
1174: } elsif ($bottom{$aopt}) {
1175: $bottomlist[$bottom{$aopt}]=$aopt;
1176: $bottomcount++;
1177: } else {
1178: push (@whichopt,$aopt);
1179: }
1180: }
1181: for (my $i=0;$i<=$#toplist;$i++) {
1182: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
1183: }
1184: for (my $i=0;$i<=$#bottomlist;$i++) {
1185: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
1186: }
1187: return @whichopt;
1.71 albertel 1188: }
1189:
1.85 albertel 1190: sub show_answer {
1191: my $part = $Apache::inputtags::part;
1.228 raeburn 1192: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
1.85 albertel 1193: my $status = $Apache::inputtags::status[-1];
1.228 raeburn 1194: my $canshow = 0;
1195: if ($award =~ /^correct/) {
1.230 raeburn 1196: if (($Apache::lonhomework::history{"resource.$part.awarded"} >= 1) ||
1197: (&Apache::lonnet::EXT("resource.$part.retrypartial") !~/^1|on|yes$/)) {
1.228 raeburn 1198: $canshow = 1;
1199: }
1200: }
1201: return (($canshow && &Apache::lonhomework::show_problem_status())
1202: || $status eq "SHOW_ANSWER");
1.85 albertel 1203: }
1.87 albertel 1204:
1205: sub analyze_store_foilgroup {
1206: my ($shown,$attrs)=@_;
1207: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1208: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
1209: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
1210: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
1211: foreach my $attr (@$attrs) {
1212: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
1213: $Apache::response::foilgroup{"$name.".$attr};
1214: }
1215: }
1216: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1.96 albertel 1217: }
1218:
1219: sub check_if_computed {
1220: my ($token,$parstack,$safeeval,$name)=@_;
1221: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1.106 matthew 1222: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1.96 albertel 1223: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1224: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
1225: }
1.87 albertel 1226: }
1227:
1228: sub pick_foil_for_concept {
1229: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
1.231 ! raeburn 1230: my @names;
! 1231: if (ref($Apache::response::conceptgroup{'names'}) eq 'ARRAY') {
! 1232: @names = @{ $Apache::response::conceptgroup{'names'} };
! 1233: }
! 1234: return if (!@names);
1.87 albertel 1235: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
1236: my $name=$names[$pick];
1237: push @{ $Apache::response::foilgroup{'names'} }, $name;
1238: foreach my $attr (@$attrs) {
1239: $Apache::response::foilgroup{"$name.".$attr} =
1240: $Apache::response::conceptgroup{"$name.".$attr};
1241: }
1242: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
1243: $Apache::response::foilgroup{"$name.concept"} = $concept;
1244: &Apache::lonxml::debug("Selecting $name in $concept");
1245: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
1246: if ($target eq 'analyze') {
1247: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
1248: $concept);
1249: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
1250: $Apache::response::conceptgroup{'names'};
1251: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
1252: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
1253: $name);
1254: foreach my $attr (@$attrs) {
1255: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
1256: $Apache::response::conceptgroup{"$name.$attr"};
1257: }
1258: }
1259: }
1260: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
1261: $hinthash->{"$part_id.concept.$concept"}=
1262: $Apache::response::conceptgroup{'names'};
1263:
1264: }
1.208 jms 1265:
1266: =pod
1267:
1268: =item get_response_param()
1269:
1270: Get a parameter associated with a problem.
1271: Parameters:
1272: $id - the id of the paramater, either a part id,
1273: or a partid and responspe id joined by _
1274: $name - Name of the parameter to fetch
1275: $default - Default value for the paramter.
1276:
1277: =cut
1278:
1.95 albertel 1279: sub get_response_param {
1280: my ($id,$name,$default)=@_;
1281: my $parameter;
1.120 albertel 1282: if ($env{'request.state'} eq 'construct' &&
1.95 albertel 1283: defined($Apache::inputtags::params{$name})) {
1284: $parameter=$Apache::inputtags::params{$name};
1285: } else {
1286: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
1287: }
1288: if (!defined($parameter) || $parameter eq '') {
1289: $parameter = $default;
1290: }
1291: return $parameter;
1292: }
1.87 albertel 1293:
1.113 albertel 1294: sub submitted {
1295: my ($who)=@_;
1296:
1297: # when scatron grading any submission is a submission
1.120 albertel 1298: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1.113 albertel 1299: # if the caller only cared if this was a scantron submission
1300: if ($who eq 'scantron') { return 0; }
1301: # if the Submit Answer button for this particular part was pressed
1302: my $partid=$Apache::inputtags::part;
1.159 albertel 1303: if ($env{'form.submitted'} eq "part_$partid") {
1304: return 1;
1305: }
1306: if ($env{'form.submitted'} eq "yes"
1307: && defined($env{'form.submit_'.$partid})) {
1308: return 1;
1309: }
1.122 albertel 1310: # Submit All button on a .page was pressed
1311: if (defined($env{'form.all_submit'})) { return 1; }
1.204 bisitz 1312: # otherwise no submission occurred
1.113 albertel 1313: return 0;
1314: }
1.117 albertel 1315:
1.130 albertel 1316: sub add_to_gradingqueue {
1.149 albertel 1317: my ($symb,$courseid,$domain,$name) = &Apache::lonnet::whichuser();
1.131 albertel 1318: if ( $courseid eq ''
1319: || $symb eq ''
1.135 albertel 1320: || $env{'request.state'} eq 'construct'
1321: || $Apache::lonhomework::type ne 'problem') {
1.131 albertel 1322: return;
1323: }
1.130 albertel 1324:
1325: my %queue_info = ( 'type' => 'problem',
1326: 'time' => time);
1327:
1328: if (exists($Apache::lonhomework::history{"resource.0.checkedin.slot"})) {
1329: $queue_info{'slot'}=
1330: $Apache::lonhomework::history{"resource.0.checkedin.slot"};
1331: }
1332:
1333: my $result=&Apache::bridgetask::add_to_queue('gradingqueue',\%queue_info);
1334: if ($result ne 'ok') {
1335: &Apache::lonxml::error("add_to_queue said $result");
1336: }
1337: }
1338:
1.208 jms 1339: =pod
1340:
1341: =item check_status()
1342:
1343: basically undef and 0 (both false) mean that they still have work to do
1344: and all true values mean that they can't do any more work
1345:
1346: a return of undef means it is unattempted
1347: a return of 0 means it is attmpted and wrong but still has tries
1348: a return of 1 means it is marked correct
1349: a return of 2 means they have exceed maximum number of tries
1350: a return of 3 means it after the answer date
1351:
1352: =cut
1353:
1.117 albertel 1354: sub check_status {
1355: my ($id)=@_;
1.143 albertel 1356: if (!defined($id)) { $id=$Apache::inputtags::part; }
1.117 albertel 1357: my $curtime=&Apache::lonnet::EXT('system.time');
1358: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
1359: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
1360: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
1361: if ( $opendate && $curtime > $opendate &&
1362: $duedate && $curtime > $duedate &&
1363: $answerdate && $curtime > $answerdate) {
1364: return 3;
1365: }
1366: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
1367: if ($status =~ /^correct/) { return 1; }
1368: if (!$status) { return undef; }
1369: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
1370: if ($maxtries eq '') { $maxtries=2; }
1371: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
1372: if ($curtries < $maxtries) { return 0; }
1373: return 2;
1374: }
1375:
1.177 albertel 1376: =pod
1377:
1.210 raeburn 1378: =item setup_prior_tries_hash()
1.177 albertel 1379:
1380: Foreach each past .submission $func is called with 3 arguments
1381: - the mode to set things up for (currently always 'grade')
1382: - the stored .submission string
1383: - The expansion of $data
1384:
1385: $data is an array ref containing elements that are either
1386: - scalars that are other elements of the history hash to pass to $func
1387: - ref to data to be passed untouched to $func
1388:
1.221 raeburn 1389: $questiontype is the questiontype (currently only passed in if
1390: randomizebytry.
1391:
1.177 albertel 1392: =cut
1393:
1.162 albertel 1394: sub setup_prior_tries_hash {
1.221 raeburn 1395: my ($func,$data,$questiontype) = @_;
1.162 albertel 1396: my $part = $Apache::inputtags::part;
1.221 raeburn 1397: my $id = $Apache::inputtags::response[-1];
1.162 albertel 1398: foreach my $i (1..$Apache::lonhomework::history{'version'}) {
1.221 raeburn 1399: my $partprefix = "$i:resource.$part";
1400: my $sub_key = "$partprefix.$id.submission";
1.162 albertel 1401: next if (!exists($Apache::lonhomework::history{$sub_key}));
1.221 raeburn 1402: my $type_key = "$partprefix.type";
1403: my $type = $Apache::lonhomework::history{$type_key};
1.162 albertel 1404: my @other_data;
1.221 raeburn 1405: if (ref($data) eq 'ARRAY') {
1406: foreach my $datum (@{ $data }) {
1407: if (ref($datum)) {
1408: push(@other_data,$datum);
1409: } else {
1410: my $info_key = "$i:resource.$part.$id.$datum";
1411: push(@other_data,$Apache::lonhomework::history{$info_key});
1412: }
1.162 albertel 1413: }
1.221 raeburn 1414: }
1415: if ($questiontype eq 'randomizetry') {
1416: my $order_key = "$partprefix.$id.foilorder";
1417: my @whichopts = &Apache::lonnet::str2array($Apache::lonhomework::history{$order_key});
1418: if (@whichopts > 0) {
1419: shift(@other_data);
1420: unshift(@other_data,\@whichopts);
1421: }
1422: }
1.162 albertel 1423: my $output =
1424: &$func('grade',
1425: $Apache::lonhomework::history{$sub_key},
1426: \@other_data);
1427: if (defined($output)) {
1428: $Apache::inputtags::submission_display{$sub_key} = $output;
1429: }
1430: }
1431: }
1432:
1.1 albertel 1433: 1;
1434: __END__
1.38 albertel 1435:
1.208 jms 1436: =pod
1437:
1.209 www 1438: =cut
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