Annotation of loncom/homework/response.pm, revision 1.121
1.38 albertel 1: # The LearningOnline Network with CAPA
1.1 albertel 2: # various response type definitons response definition
1.53 albertel 3: #
1.121 ! albertel 4: # $Id: response.pm,v 1.120 2005/04/07 06:56:22 albertel 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:
1.1 albertel 29: package Apache::response;
30: use strict;
1.93 albertel 31: use Apache::lonlocal;
1.120 albertel 32: use Apache::lonnet;
1.1 albertel 33:
1.57 harris41 34: BEGIN {
1.73 albertel 35: &Apache::lonxml::register('Apache::response',('responseparam','parameter','dataresponse'));
1.1 albertel 36: }
37:
1.13 albertel 38: sub start_response {
1.73 albertel 39: my ($parstack,$safeeval)=@_;
40: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
41: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
42: if ($#Apache::inputtags::import > -1) {
43: &Apache::lonxml::debug("Turning :$id: into");
44: $id = join('_',@Apache::inputtags::import).'_'.$id;
45: &Apache::lonxml::debug("New :$id:");
46: }
47: push (@Apache::inputtags::response,$id);
48: push (@Apache::inputtags::responselist,$id);
49: @Apache::inputtags::inputlist=();
1.101 albertel 50: if ($Apache::inputtags::part eq '' &&
51: !$Apache::lonhomework::ignore_response_errors) {
1.97 albertel 52: &Apache::lonxml::error(&HTML::Entities::encode(&mt("Found a <*response> outside of a <part> in a <part>ed problem"),'<>&"'));
1.92 albertel 53: }
54: if ($Apache::inputtags::response_with_no_part &&
55: $Apache::inputtags::part ne '0') {
1.97 albertel 56: &Apache::lonxml::error(&HTML::Entities::encode(&mt("<*response>s are both inside of <part> and outside of <part>, this is not a valid problem, errors in grading may occur."),'<>&"').'<br />');
1.92 albertel 57: }
58: if ($Apache::inputtags::part eq '0') {
59: $Apache::inputtags::response_with_no_part=1;
60: }
1.73 albertel 61: return $id;
1.13 albertel 62: }
63:
64: sub end_response {
1.79 albertel 65: #pop @Apache::inputtags::response;
1.73 albertel 66: @Apache::inputtags::inputlist=();
67: return '';
1.13 albertel 68: }
69:
1.41 albertel 70: sub start_hintresponse {
1.73 albertel 71: my ($parstack,$safeeval)=@_;
72: my $id= &Apache::lonxml::get_param('id',$parstack,$safeeval);
73: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
74: push (@Apache::inputtags::response,$id);
1.79 albertel 75: push (@Apache::inputtags::responselist,$id);
1.73 albertel 76: push (@Apache::inputtags::paramstack,[%Apache::inputtags::params]);
77: return $id;
1.41 albertel 78: }
79:
80: sub end_hintresponse {
1.73 albertel 81: pop @Apache::inputtags::response;
82: if (defined($Apache::inputtags::paramstack[-1])) {
83: %Apache::inputtags::params=
84: @{ pop(@Apache::inputtags::paramstack) };
85: }
86: return '';
1.41 albertel 87: }
88:
1.99 albertel 89: my @randomseeds;
90: sub pushrandomnumber {
91: my $rand_alg=&Apache::lonnet::get_rand_alg();
92: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
93: $rand_alg eq '64bit2') {
94: # do nothing
95: } else {
96: my @seed=&Math::Random::random_get_seed();
97: push (@randomseeds,\@seed);
98: }
99: &Apache::response::setrandomnumber();
100: }
101: sub poprandomnumber {
102: my $rand_alg=&Apache::lonnet::get_rand_alg();
103: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
104: $rand_alg eq '64bit2') {
105: return;
106: }
107: my $seed=pop(@randomseeds);
108: if ($seed) {
109: &Math::Random::random_set_seed(@$seed);
110: } else {
111: &Apache::lonxml::error("Unable to restore random algorithm.");
112: }
113: }
1.117 albertel 114:
1.26 albertel 115: sub setrandomnumber {
1.73 albertel 116: my $rndseed;
1.88 albertel 117: $rndseed=&Apache::structuretags::setup_rndseed();
118: if (!defined($rndseed)) { $rndseed=&Apache::lonnet::rndseed(); }
1.73 albertel 119: &Apache::lonxml::debug("randseed $rndseed");
120: # $rndseed=unpack("%32i",$rndseed);
1.99 albertel 121: my $rand_alg=&Apache::lonnet::get_rand_alg();
122: my $rndmod;
1.119 albertel 123:
124: my ($id1,$id2,$shift_amt);
125: if ($Apache::lonhomework::parsing_a_problem) {
126: $id1=$Apache::inputtags::part;
127: if (defined($Apache::inputtags::response[-1])) {
128: $id2=$Apache::inputtags::response[-1];
129: }
130: $shift_amt=scalar(@Apache::inputtags::responselist);
131: } elsif ($Apache::lonhomework::parsing_a_task) {
132: $id1=$Apache::bridgetask::dimension;
133: if (defined($Apache::bridgetask::instance[-1])) {
134: $id2=$Apache::bridgetask::instance[-1];
135: }
136: $shift_amt=scalar(@Apache::bridgetask::instance);
137: }
138: &Apache::lonxml::debug("id1: $id1, id2: $id2, shift_amt: $shift_amt");
1.99 albertel 139: if (!$rand_alg || $rand_alg eq '32bit' || $rand_alg eq '64bit' ||
140: $rand_alg eq '64bit2') {
1.119 albertel 141: $rndmod=(&Apache::lonnet::numval($id1) << 10);
142: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval($id2); }
1.110 albertel 143: } elsif ($rand_alg eq '64bit3') {
1.119 albertel 144: $rndmod=(&Apache::lonnet::numval2($id1) << 10);
145: if (defined($id2)) { $rndmod+=&Apache::lonnet::numval2($id2); }
1.110 albertel 146: } else {
1.119 albertel 147: my $shift=(4*$shift_amt)%30;
148: $rndmod=(&Apache::lonnet::numval3($id1) << (($shift+15)%30));
149: if (defined($id2)) {
150: $rndmod+=(&Apache::lonnet::numval3($id2) << $shift );
1.110 albertel 151: }
1.99 albertel 152: }
153: if ($rndseed =~/([,:])/) {
154: my $char=$1;
155: use integer;
156: my ($num1,$num2)=split(/\Q$char\E/,$rndseed);
157: $num1+=$rndmod;
158: $num2+=$rndmod;
1.109 albertel 159: if($Apache::lonnet::_64bit) { $num1=(($num1<<32)>>32); $num2=(($num2<<32)>>32); }
1.99 albertel 160: $rndseed=$num1.$char.$num2;
161: } else {
1.74 albertel 162: $rndseed+=$rndmod;
1.109 albertel 163: if($Apache::lonnet::_64bit) {
164: use integer;
165: $rndseed=(($rndseed<<32)>>32);
166: }
1.74 albertel 167: }
1.111 albertel 168: &Apache::lonxml::debug("randseed $rndmod $rndseed");
1.74 albertel 169: &Apache::lonnet::setup_random_from_rndseed($rndseed);
1.73 albertel 170: return '';
1.26 albertel 171: }
172:
1.7 www 173: sub meta_parameter_write {
1.38 albertel 174: my ($name,$type,$default,$display)=@_;
1.41 albertel 175: my $partref=$Apache::inputtags::part;
176: my $result='<parameter part="'.$Apache::inputtags::part.'"';
177: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 178: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
179: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 180: }
181: $result.= ' name="'.$name.'"'.
182: ' type="'.$type.'"'.
1.89 albertel 183: (defined($default)?' default="'.$default.'"':'').
184: (defined($display)?' display="'.$display.' [Part: '.$partref.']"':'')
1.41 albertel 185: .'></parameter>'
186: ."\n";
187: return $result;
1.33 www 188: }
189:
190: sub meta_package_write {
191: my $name=shift;
1.41 albertel 192: my $result = '<parameter part="'.$Apache::inputtags::part.'"';
193: if(defined($Apache::inputtags::response[-1])) {
1.73 albertel 194: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
1.41 albertel 195: }
196: $result.=' package="'.$name.'"></parameter>'."\n";
197: return $result;
1.7 www 198: }
199:
200: sub meta_stores_write {
1.10 www 201: my ($name,$type,$display)=@_;
1.41 albertel 202: my $partref=$Apache::inputtags::part;
203: my $result = '<stores part="'.$Apache::inputtags::part.'"';
204: if (defined($Apache::inputtags::response[-1])) {
1.73 albertel 205: $result.= ' id="'.$Apache::inputtags::response[-1].'"';
206: $partref.='_'.$Apache::inputtags::response[-1];
1.41 albertel 207: }
208: $result.= ' name="'.$name.'"'.
209: ' type="'.$type.'"'.
210: ' display="'.$display.' [Part: '.$partref.']"'.
211: "></stores>\n";
1.7 www 212: }
213:
214: sub mandatory_part_meta {
215: #
216: # Autogenerate metadata for mandatory
217: # input (from RAT or lonparmset) and
218: # output (to lonspreadsheet)
219: # of each part
220: #
1.73 albertel 221: return
1.34 www 222: # &meta_parameter_write('opendate','date_start','',
223: # 'Opening Date').
224: # &meta_parameter_write('duedate','date_end','',
225: # 'Due Date').
226: # &meta_parameter_write('answerdate','date_start','',
227: # 'Show Answer Date').
228: # &meta_parameter_write('weight','int_zeropos','',
229: # 'Available Points').
230: # &meta_parameter_write('maxtries','int_pos','',
231: # 'Maximum Number of Tries').
1.73 albertel 232: &meta_package_write('part').
233: &meta_stores_write('solved','string',
234: 'Problem Status').
235: &meta_stores_write('tries','int_zeropos',
236: 'Number of Attempts').
237: &meta_stores_write('awarded','float',
238: 'Partial Credit Factor');
1.7 www 239: #
240: # Note: responseid-specific data 'submission' and 'awarddetail'
241: # not available to spreadsheet -> skip here
242: #
1.86 albertel 243: }
244:
245: sub meta_part_order {
246: if (@Apache::inputtags::partlist) {
247: my @parts=@Apache::inputtags::partlist;
248: shift(@parts);
1.100 albertel 249: return '<partorder>'.join(',',@parts).'</partorder>'."\n";
1.86 albertel 250: } else {
1.100 albertel 251: return '<partorder>0</partorder>'."\n";
252: }
253: }
254:
255: sub meta_response_order {
256: if (@Apache::inputtags::responselist) {
257: return '<responseorder>'.join(',',@Apache::inputtags::responselist).
258: '</responseorder>'."\n";
1.86 albertel 259: }
1.14 albertel 260: }
261:
1.15 albertel 262: sub check_for_previous {
1.73 albertel 263: my ($curresponse,$partid,$id) = @_;
264: my %previous;
265: $previous{'used'} = 0;
266: foreach my $key (sort(keys(%Apache::lonhomework::history))) {
1.98 albertel 267: if ($key =~ /resource\.$partid\.$id\.submission$/) {
1.73 albertel 268: &Apache::lonxml::debug("Trying $key");
269: my $pastresponse=$Apache::lonhomework::history{$key};
270: if ($pastresponse eq $curresponse) {
271: $previous{'used'} = 1;
272: my $history;
273: if ( $key =~ /^(\d+):/ ) {
274: $history=$1;
275: $previous{'award'} = $Apache::lonhomework::history{"$history:resource.$partid.$id.awarddetail"};
276: $previous{'last'}='0';
277: push(@{ $previous{'version'} },$history);
278: } else {
279: $previous{'award'} = $Apache::lonhomework::history{"resource.$partid.$id.awarddetail"};
280: $previous{'last'}='1';
281: }
282: if (! $previous{'award'} ) { $previous{'award'} = 'UNKNOWN'; }
283: &Apache::lonxml::debug("got a match :$previous{'award'}:$previous{'used'}:");
284: }
1.32 albertel 285: }
1.73 albertel 286: }
287: &Apache::lonhomework::showhash(%previous);
288: return %previous;
1.54 albertel 289: }
290:
291: sub handle_previous {
1.73 albertel 292: my ($previous,$ad)=@_;
293: if ($$previous{'used'} && ($$previous{'award'} eq $ad) ) {
294: if ($$previous{'last'}) {
295: push(@Apache::inputtags::previous,'PREVIOUSLY_LAST');
1.107 albertel 296: push(@Apache::inputtags::previous_version,$$previous{'version'});
297: } elsif ($Apache::lonhomework::type ne 'survey') {
1.73 albertel 298: push(@Apache::inputtags::previous,'PREVIOUSLY_USED');
1.107 albertel 299: push(@Apache::inputtags::previous_version,$$previous{'version'});
1.73 albertel 300: }
1.54 albertel 301: }
1.44 albertel 302: }
303:
1.45 albertel 304: sub view_or_modify {
1.73 albertel 305: my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
306: my $myself=0;
1.120 albertel 307: if ( ($name eq $env{'user.name'}) && ($domain eq $env{'user.domain'}) ) {
1.73 albertel 308: $myself=1;
309: }
310: my $vgr=&Apache::lonnet::allowed('vgr',$courseid);
311: my $mgr=&Apache::lonnet::allowed('vgr',$courseid);
312: if ($mgr) { return "M"; }
313: if ($vgr) { return "V"; }
314: if ($myself) { return "V"; }
315: return '';
1.45 albertel 316: }
317:
1.44 albertel 318: sub start_dataresponse {
1.73 albertel 319: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
320: my $id = &Apache::response::start_response($parstack,$safeeval);
321: my $result;
322: if ($target eq 'web') {
323: $result = $token->[2]->{'display'}.':';
324: } elsif ($target eq 'meta') {
325: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
326: $token->[2]->{'type'},
327: $token->[2]->{'display'});
328: $result .= &Apache::response::meta_package_write('dataresponse');
329: }
330: return $result;
1.44 albertel 331: }
332:
333: sub end_dataresponse {
1.73 albertel 334: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
335: my $result;
336: if ( $target eq 'web' ) {
337: } elsif ($target eq 'grade' ) {
1.120 albertel 338: if ( defined $env{'form.submitted'}) {
1.73 albertel 339: my ($symb,$courseid,$domain,$name)=&Apache::lonxml::whichuser();
340: my $allowed=&Apache::lonnet::allowed('mgr',$courseid);
341: if ($allowed) {
1.94 albertel 342: &Apache::response::setup_params('dataresponse',$safeeval);
1.73 albertel 343: my $partid = $Apache::inputtags::part;
344: my $id = $Apache::inputtags::response['-1'];
1.120 albertel 345: my $response = $env{'form.HWVAL_'.$id};
1.73 albertel 346: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
347: if ( $response =~ /[^\s]/) {
348: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=$response;
349: $Apache::lonhomework::results{"resource.$partid.$id.submission"}=$response;
350: $Apache::lonhomework::results{"resource.$partid.$id.awarddetail"}='SUBMITTED';
351: }
352: } else {
353: $result='Not Permitted to change values.'
354: }
1.45 albertel 355: }
1.73 albertel 356: }
357: &Apache::response::end_response;
358: return $result;
1.3 albertel 359: }
360:
1.83 albertel 361: sub decide_package {
362: my ($tagstack)=@_;
363: my $package;
364: if ($$tagstack[-1] eq 'parameter') {
365: $package='part';
366: } else {
367: my $i=-1;
368: while (defined($$tagstack[$i])) {
369: if ($$tagstack[$i] =~ /(response|hint)$/) {
370: $package=$$tagstack[$i];
371: last;
372: }
373: $i--;
374: }
375: }
376: return $package;
377: }
378:
1.3 albertel 379: sub start_responseparam {
1.73 albertel 380: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
381: my $result='';
382: if ($target eq 'meta') {
383: $result = &meta_parameter_write($token->[2]->{'name'},
384: $token->[2]->{'type'},
385: $token->[2]->{'default'},
386: $token->[2]->{'description'});
387: } elsif ($target eq 'edit') {
388: $result.=&Apache::edit::tag_start($target,$token);
1.83 albertel 389: my $optionlist;
390: my $package=&decide_package($tagstack);
391: foreach my $key (sort(keys(%Apache::lonnet::packagetab))) {
392: if ($key =~ /^\Q$package\E&(.*)&display$/) {
393: $optionlist.='<option value="'.$1.'">'.
394: $Apache::lonnet::packagetab{$key}.'</option>';
395: }
396: }
397: if (defined($optionlist)) {
398: $result.='Use template: <select name="'.
399: &Apache::edit::html_element_name('parameter_package').'">'.
400: '<option value=""></option>'.$optionlist.'</select><br />';
401: }
1.73 albertel 402: $result.=&Apache::edit::text_arg('Name:','name',$token).
403: &Apache::edit::text_arg('Type:','type',$token).
404: &Apache::edit::text_arg('Description:','description',$token).
405: &Apache::edit::text_arg('Default:','default',$token).
406: "</td></tr>";
407: $result.=&Apache::edit::end_table;
408: } elsif ($target eq 'modified') {
1.83 albertel 409: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
410: $safeeval,'name','type',
411: 'description','default');
412: my $element=&Apache::edit::html_element_name('parameter_package');
1.120 albertel 413: if (defined($env{"form.$element"}) && $env{"form.$element"} ne '') {
414: my $name=$env{"form.$element"};
1.83 albertel 415: my $tag=&decide_package($tagstack);
416: $token->[2]->{'name'}=$name;
417: $token->[2]->{'type'}=
418: $Apache::lonnet::packagetab{"$tag&$name&type"};
419: $token->[2]->{'description'}=
420: $Apache::lonnet::packagetab{"$tag&$name&display"};
421: $token->[2]->{'default'}=
422: $Apache::lonnet::packagetab{"$tag&$name&default"};
423: $constructtag=1;
424: }
1.73 albertel 425: if ($constructtag) {
426: $result = &Apache::edit::rebuild_tag($token);
427: $result.=&Apache::edit::handle_insert();
428: }
429: } elsif ($target eq 'grade' || $target eq 'answer' || $target eq 'web' ||
430: $target eq 'tex' || $target eq 'analyze' ) {
1.120 albertel 431: if ($env{'request.state'} eq 'construct') {
1.73 albertel 432: my $name =&Apache::lonxml::get_param('name',$parstack,$safeeval);
433: my $default=&Apache::lonxml::get_param('default',$parstack,
434: $safeeval);
435: if ($name) {$Apache::inputtags::params{$name}=$default;}
436: }
1.52 albertel 437: }
1.73 albertel 438: return $result;
1.3 albertel 439: }
440:
441: sub end_responseparam {
1.73 albertel 442: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
443: if ($target eq 'edit') { return ('','no'); }
444: return '';
1.55 albertel 445: }
446:
447: sub start_parameter {
1.114 albertel 448: return &start_responseparam(@_);
1.55 albertel 449: }
450:
451: sub end_parameter {
1.114 albertel 452: return &end_responseparam(@_);
1.42 albertel 453: }
454:
1.67 albertel 455: sub reset_params {
456: %Apache::inputtags::params=();
457: }
458:
1.42 albertel 459: sub setup_params {
1.94 albertel 460: my ($tag,$safeeval) = @_;
1.42 albertel 461:
1.120 albertel 462: if ($env{'request.state'} eq 'construct') { return; }
1.73 albertel 463: my %paramlist=();
464: foreach my $key (keys(%Apache::lonnet::packagetab)) {
465: if ($key =~ /^$tag/) {
466: my ($package,$name) = split(/&/,$key);
467: $paramlist{$name}=1;
468: }
1.42 albertel 469: }
1.73 albertel 470: foreach my $key (keys(%paramlist)) {
471: my $entry= 'resource.'.$Apache::inputtags::part;
472: if (defined($Apache::inputtags::response[-1])) {
473: $entry.='_'.$Apache::inputtags::response[-1];
474: }
475: $entry.='.'.$key;
476: &Apache::lonxml::debug("looking for $entry");
477: my $value = &Apache::lonnet::EXT("$entry");
478: &Apache::lonxml::debug("$key has value :$value:");
479: if ($value eq 'con_lost' || $value =~ /^error:/) {
480: &Apache::lonxml::debug("using nothing");
481: $Apache::inputtags::params{$key}='';
482: } else {
1.94 albertel 483: my $string="{return qq\0".$value."\0}";
484: my $newvalue=&Apache::run::run($string,$safeeval,1);
485: if (defined($newvalue)) { $value=$newvalue; }
1.73 albertel 486: $Apache::inputtags::params{$key}=$value;
487: }
1.42 albertel 488: }
1.48 albertel 489: }
490:
491: sub answer_header {
1.73 albertel 492: my ($type) = @_;
493: my $result;
1.120 albertel 494: if ($env{'form.answer_output_mode'} eq 'tex') {
1.84 sakharuk 495: $result = ' \vskip 0 mm \begin{tabular}{|c|}\hline Answer for Part: \verb|'.
496: $Apache::inputtags::part.'| \\\\ \hline ';
1.73 albertel 497: } else {
1.80 albertel 498: $result = '<table border="1"><tr><td>Answer for Part:'.
499: $Apache::inputtags::part. '</td>'."\n";
1.73 albertel 500: }
501: return $result;
1.48 albertel 502: }
503:
504: sub answer_part {
1.73 albertel 505: my ($type,$answer) = @_;
506: my $result;
1.120 albertel 507: if ($env{'form.answer_output_mode'} eq 'tex') {
1.81 sakharuk 508: $result = ' \verb|'.$answer.'|\\\\ \hline ';
1.73 albertel 509: } else {
1.80 albertel 510: $result = '<td>'.$answer.'</td>';
1.73 albertel 511: }
512: return $result;
1.48 albertel 513: }
514:
515: sub answer_footer {
1.73 albertel 516: my ($type) = @_;
517: my $result;
1.120 albertel 518: if ($env{'form.answer_output_mode'} eq 'tex') {
1.75 sakharuk 519: $result = ' \end{tabular} \vskip 0 mm ';
1.73 albertel 520: } else {
1.80 albertel 521: $result = '</tr></table>';
1.73 albertel 522: }
523: return $result;
1.1 albertel 524: }
1.2 albertel 525:
1.62 albertel 526: sub showallfoils {
1.120 albertel 527: if (defined($env{'form.showallfoils'})) {
1.102 albertel 528: my ($symb)=&Apache::lonxml::whichuser();
1.120 albertel 529: if (($env{'request.state'} eq 'construct') ||
530: ($env{'user.adv'} && $symb eq '') ||
1.118 foxr 531: ($Apache::lonhomework::viewgrades) ) {
1.102 albertel 532: return 1;
533: }
1.73 albertel 534: }
1.108 albertel 535: if ($Apache::lonhomework::type eq 'survey') { return 1; }
1.102 albertel 536: return 0;
1.70 albertel 537: }
538:
539: sub getresponse {
1.90 albertel 540: my ($temp,$resulttype)=@_;
1.70 albertel 541: my $formparm='form.HWVAL_'.$Apache::inputtags::response['-1'];
542: my $response;
543: if (!defined($temp)) {
544: $temp=1;
545: } else {
546: $formparm.=":$temp";
547: }
548: my %let_to_num=('A'=>0,'B'=>1,'C'=>2,'D'=>3,'E'=>4,'F'=>5,'G'=>6,'H'=>7,
549: 'I'=>8,'J'=>9,'K'=>10,'L'=>11,'M'=>12,'N'=>13,'O'=>14,
550: 'P'=>15,'Q'=>16,'R'=>17,'S'=>18,'T'=>19,'U'=>20,'V'=>21,
551: 'W'=>22,'X'=>23,'Y'=>24,'Z'=>25);
1.120 albertel 552: if ($env{'form.submitted'} eq 'scantron') {
1.71 albertel 553: my $part = $Apache::inputtags::part;
554: my $id = $Apache::inputtags::response[-1];
1.120 albertel 555: $response = $env{'scantron.'.($Apache::lonxml::counter+$temp-1).
1.70 albertel 556: '.answer'};
1.71 albertel 557: # save bubbled letter for later
558: $Apache::lonhomework::results{"resource.$part.$id.scantron"}.=
559: $response;
1.90 albertel 560: if ($resulttype ne 'letter') {
1.104 albertel 561: if ($resulttype eq 'A is 1') {
1.105 albertel 562: $response = $let_to_num{$response}+1;
563: } else {
1.104 albertel 564: $response = $let_to_num{$response};
565: }
1.90 albertel 566: }
1.70 albertel 567: } else {
1.120 albertel 568: $response = $env{$formparm};
1.70 albertel 569: }
570: return $response;
1.62 albertel 571: }
1.71 albertel 572:
573: sub repetition {
574: my $id = $Apache::inputtags::part;
575: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.121 ! albertel 576: if (!defined($weight) || ($weight eq '')) { $weight=1; }
1.71 albertel 577: my $repetition = int $weight/9;
578: if ($weight % 9 != 0) {$repetition++;}
1.72 albertel 579: return $repetition;
580: }
581:
582: sub scored_response {
583: my ($part,$id)=@_;
584: my $repetition=&repetition();
585: my $score=0;
586: for (my $i=0;$i<$repetition;$i++) {
587: my $increase=&Apache::response::getresponse($i+1);
588: if ($increase ne '') { $score+=$increase+1; }
589: }
590: my $weight = &Apache::lonnet::EXT("resource.$part.weight");
1.91 albertel 591: if (!defined($weight) || $weight eq '' || $weight eq 0) { $weight = 1; }
1.72 albertel 592: my $pcr=$score/$weight;
593: $Apache::lonhomework::results{"resource.$part.$id.awarded"}=$pcr;
594: $Apache::lonhomework::results{"resource.$part.$id.awarddetail"}=
595: 'ASSIGNED_SCORE';
1.71 albertel 596: return $repetition;
1.78 albertel 597: }
598:
599: sub whichorder {
600: my ($max,$randomize,$showall,$hash)=@_;
601: #&Apache::lonxml::debug("man $max randomize $randomize");
602: if (!defined(@{ $$hash{'names'} })) { return; }
603: my @names = @{ $$hash{'names'} };
604: my @whichopt =();
605: my (%top,@toplist,%bottom,@bottomlist);
606: if (!($showall || ($randomize eq 'no'))) {
607: my $current=0;
608: foreach my $name (@names) {
609: $current++;
610: if ($$hash{"$name.location"} eq 'top') {
611: $top{$name}=$current;
612: } elsif ($$hash{"$name.location"} eq 'bottom') {
613: $bottom{$name}=$current;
614: }
615: }
616: }
617: my $topcount=0;
618: my $bottomcount=0;
619: while (((scalar(@whichopt)+$topcount+$bottomcount) < $max || $showall)
620: && ($#names > -1)) {
621: #&Apache::lonxml::debug("Have $#whichopt max is $max");
622: my $aopt;
623: if ($showall || ($randomize eq 'no')) {
624: $aopt=0;
625: } else {
626: $aopt=int(&Math::Random::random_uniform() * ($#names+1));
627: }
628: #&Apache::lonxml::debug("From $#whichopt $max $#names elms, picking $aopt");
629: $aopt=splice(@names,$aopt,1);
630: #&Apache::lonxml::debug("Picked $aopt");
631: if ($top{$aopt}) {
632: $toplist[$top{$aopt}]=$aopt;
633: $topcount++;
634: } elsif ($bottom{$aopt}) {
635: $bottomlist[$bottom{$aopt}]=$aopt;
636: $bottomcount++;
637: } else {
638: push (@whichopt,$aopt);
639: }
640: }
641: for (my $i=0;$i<=$#toplist;$i++) {
642: if ($toplist[$i]) { unshift(@whichopt,$toplist[$i]) }
643: }
644: for (my $i=0;$i<=$#bottomlist;$i++) {
645: if ($bottomlist[$i]) { push(@whichopt,$bottomlist[$i]) }
646: }
647: return @whichopt;
1.71 albertel 648: }
649:
1.85 albertel 650: sub show_answer {
651: my $part = $Apache::inputtags::part;
652: my $award = $Apache::lonhomework::history{"resource.$part.solved"};
653: my $status = $Apache::inputtags::status[-1];
654: return ( ($award =~ /^correct/
655: && lc($Apache::lonhomework::problemstatus) ne 'no')
656: || $status eq "SHOW_ANSWER");
657: }
1.87 albertel 658:
659: sub analyze_store_foilgroup {
660: my ($shown,$attrs)=@_;
661: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
662: foreach my $name (@{ $Apache::response::foilgroup{'names'} }) {
663: if (defined($Apache::lonhomework::analyze{"$part_id.foil.value.$name"})) { next; }
664: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },$name);
665: foreach my $attr (@$attrs) {
666: $Apache::lonhomework::analyze{"$part_id.foil.".$attr.".$name"} =
667: $Apache::response::foilgroup{"$name.".$attr};
668: }
669: }
670: push (@{ $Apache::lonhomework::analyze{"$part_id.shown"} }, @{ $shown });
1.96 albertel 671: }
672:
673: sub check_if_computed {
674: my ($token,$parstack,$safeeval,$name)=@_;
675: my $value = &Apache::lonxml::get_param($name,$parstack,$safeeval);
1.106 matthew 676: if (ref($token->[2]) eq 'HASH' && $value ne $token->[2]{$name}) {
1.96 albertel 677: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
678: $Apache::lonhomework::analyze{"$part_id.answercomputed"} = 1;
679: }
1.87 albertel 680: }
681:
682: sub pick_foil_for_concept {
683: my ($target,$attrs,$hinthash,$parstack,$safeeval)=@_;
684: if (not defined(@{ $Apache::response::conceptgroup{'names'} })) { return; }
685: my @names = @{ $Apache::response::conceptgroup{'names'} };
686: my $pick=int(&Math::Random::random_uniform() * ($#names+1));
687: my $name=$names[$pick];
688: push @{ $Apache::response::foilgroup{'names'} }, $name;
689: foreach my $attr (@$attrs) {
690: $Apache::response::foilgroup{"$name.".$attr} =
691: $Apache::response::conceptgroup{"$name.".$attr};
692: }
693: my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
694: $Apache::response::foilgroup{"$name.concept"} = $concept;
695: &Apache::lonxml::debug("Selecting $name in $concept");
696: my $part_id="$Apache::inputtags::part.$Apache::inputtags::response[-1]";
697: if ($target eq 'analyze') {
698: push (@{ $Apache::lonhomework::analyze{"$part_id.concepts"} },
699: $concept);
700: $Apache::lonhomework::analyze{"$part_id.concept.$concept"}=
701: $Apache::response::conceptgroup{'names'};
702: foreach my $name (@{ $Apache::response::conceptgroup{'names'} }) {
703: push (@{ $Apache::lonhomework::analyze{"$part_id.foils"} },
704: $name);
705: foreach my $attr (@$attrs) {
706: $Apache::lonhomework::analyze{"$part_id.foil.$attr.$name"}=
707: $Apache::response::conceptgroup{"$name.$attr"};
708: }
709: }
710: }
711: push(@{ $hinthash->{"$part_id.concepts"} },$concept);
712: $hinthash->{"$part_id.concept.$concept"}=
713: $Apache::response::conceptgroup{'names'};
714:
715: }
716:
1.95 albertel 717: sub get_response_param {
718: my ($id,$name,$default)=@_;
719: my $parameter;
1.120 albertel 720: if ($env{'request.state'} eq 'construct' &&
1.95 albertel 721: defined($Apache::inputtags::params{$name})) {
722: $parameter=$Apache::inputtags::params{$name};
723: } else {
724: $parameter=&Apache::lonnet::EXT("resource.$id.$name");
725: }
726: if (!defined($parameter) || $parameter eq '') {
727: $parameter = $default;
728: }
729: return $parameter;
730: }
1.87 albertel 731:
1.113 albertel 732: sub submitted {
733: my ($who)=@_;
734:
735: # when scatron grading any submission is a submission
1.120 albertel 736: if ($env{'form.submitted'} eq 'scantron') { return 1; }
1.113 albertel 737: # if the caller only cared if this was a scantron submission
738: if ($who eq 'scantron') { return 0; }
739: # if the Submit Answer button for this particular part was pressed
740: my $partid=$Apache::inputtags::part;
1.120 albertel 741: if (defined($env{'form.submit_'.$partid})) { return 1; }
1.113 albertel 742: # otherwise no submission occured
743: return 0;
744: }
1.117 albertel 745:
746: # basically undef and 0 (both false) mean that they still have work to do
747: # and all true values mean that they can't do any more work
748: #
749: # a return of undef means it is unattempted
750: # a return of 0 means it is attmpted and wrong but still has tries
751: # a return of 1 means it is marked correct
752: # a return of 2 means they have exceed maximum number of tries
753: # a return of 3 means it after the answer date
754: sub check_status {
755: my ($id)=@_;
756: if (!$id) { $id=$Apache::linputtags::part; }
757: my $curtime=&Apache::lonnet::EXT('system.time');
758: my $opendate=&Apache::lonnet::EXT("resource.$id.opendate");
759: my $duedate=&Apache::lonnet::EXT("resource.$id.duedate");
760: my $answerdate=&Apache::lonnet::EXT("resource.$id.answerdate");
761: if ( $opendate && $curtime > $opendate &&
762: $duedate && $curtime > $duedate &&
763: $answerdate && $curtime > $answerdate) {
764: return 3;
765: }
766: my $status=&Apache::lonnet::EXT("user.resource.resource.$id.solved");
767: if ($status =~ /^correct/) { return 1; }
768: if (!$status) { return undef; }
769: my $maxtries=&Apache::lonnet::EXT("resource.$id.maxtries");
770: if ($maxtries eq '') { $maxtries=2; }
771: my $curtries=&Apache::lonnet::EXT("user.resource.resource.$id.tries");
772: if ($curtries < $maxtries) { return 0; }
773: return 2;
774: }
775:
1.1 albertel 776: 1;
777: __END__
1.38 albertel 778:
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