1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.88 2003/04/07 22:18:11 albertel Exp $
5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
28: # 2/19 Guy
29:
30: package Apache::inputtags;
31: use HTML::Entities();
32: use strict;
33: use Apache::loncommon;
34:
35: BEGIN {
36: &Apache::lonxml::register('Apache::inputtags',('textfield','textline'));
37: }
38:
39:
40: sub initialize_inputtags {
41: # list of current input ids
42: @Apache::inputtags::input=();
43: # list of all input ids seen in this problem
44: @Apache::inputtags::inputlist=();
45: # list of all current response ids
46: @Apache::inputtags::response=();
47: # list of all response ids seen in this problem
48: @Apache::inputtags::responselist=();
49: # list of whether or not a specific response was previously used
50: @Apache::inputtags::previous=();
51: # submission it was used in
52: @Apache::inputtags::previous_version=();
53: # id of current part, 0 means that no part is current (inside <problem> only
54: $Apache::inputtags::part='';
55: # list of problem date statuses, the first element is for <problem>
56: # if there is a second element it is for the current <part>
57: @Apache::inputtags::status=();
58: # hash of defined params for the current response
59: %Apache::inputtags::params=();
60: # list of all ids, for <import>, these get join()ed and prepended
61: @Apache::inputtags::import=();
62: }
63:
64: sub start_input {
65: my ($parstack,$safeeval)=@_;
66: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
67: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
68: push (@Apache::inputtags::input,$id);
69: push (@Apache::inputtags::inputlist,$id);
70: return $id;
71: }
72:
73: sub end_input {
74: pop @Apache::inputtags::input;
75: return '';
76: }
77:
78: sub start_textfield {
79: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
80: my $result = "";
81: my $id = &start_input($parstack,$safeeval);
82: my $resid=$Apache::inputtags::response[-1];
83: if ($target eq 'web') {
84: $Apache::lonxml::evaluate--;
85: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
86: my $partid=$Apache::inputtags::part;
87: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
88: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
89: if ( $cols eq '') { $cols = 80; }
90: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
91: if ( $rows eq '') { $rows = 10; }
92: $result= '<textarea name="HWVAL'.$resid.'" '.
93: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
94: if ($oldresponse ne '') {
95: #get rid of any startup text if the user has already responded
96: &Apache::lonxml::get_all_text("/textfield",$parser);
97: }
98: } else {
99: #right or wrong don't show it
100: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
101: $result='';
102: #get rid of any startup text
103: &Apache::lonxml::get_all_text("/textfield",$parser);
104: }
105: } elsif ($target eq 'grade') {
106: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$parser);
107: if ($seedtext eq $ENV{'form.HWVAL'.$resid}) {
108: # if the seed text is still there it wasn't a real submission
109: $ENV{'form.HWVAL'.$resid}='';
110: }
111: } elsif ($target eq 'edit') {
112: $result.=&Apache::edit::tag_start($target,$token);
113: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
114: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
115: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$parser);
116: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
117: } elsif ($target eq 'modified') {
118: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
119: $safeeval,'rows','cols');
120: if ($constructtag) {
121: $result = &Apache::edit::rebuild_tag($token);
122: } else {
123: $result=$token->[4];
124: }
125: $result.=&Apache::edit::modifiedfield();
126: } elsif ($target eq 'tex') {
127: if ($$tagstack[-2] eq 'essayresponse' and $Apache::lonhomework::type eq 'exam') {
128: my $number_of_lines= &Apache::lonxml::get_param('rows',$parstack,$safeeval);
129: $result = '\fbox{\fbox{\parbox{\textwidth-5mm}{';
130: for (my $i=0;$i<int $number_of_lines*2;$i++) {$result.='\strut \\\\ ';}
131: $result.='\strut \\\\\strut \\\\\strut \\\\\strut \\\\}}}';
132: }
133: }
134: return $result;
135: }
136:
137: sub end_textfield {
138: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
139: my $result;
140: if ($target eq 'web') {
141: $Apache::lonxml::evaluate++;
142: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
143: return "</textarea>";
144: }
145: } elsif ($target eq 'edit') {
146: $result=&Apache::edit::end_table();
147: }
148: &end_input;
149: return $result;
150: }
151:
152: sub start_textline {
153: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
154: my $result = "";
155: if ($target eq 'web') {
156: $Apache::lonxml::evaluate--;
157: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
158: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
159: my $maxlength;
160: if ($size eq '') { $size=20; } else {
161: if ($size < 20) { $maxlength=$size; }
162: }
163: my $partid=$Apache::inputtags::part;
164: my $id=$Apache::inputtags::response[-1];
165: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
166: if ($Apache::lonhomework::type ne 'exam') {
167: $result= '<input type="text" name="HWVAL'.$id.'" value="'.
168: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
169: }
170: } else {
171: #right or wrong don't show what was last typed in.
172: #$result='<i>'.$oldresponse.'</i>';
173: $result='';
174: }
175: } elsif ($target eq 'edit') {
176: $result=&Apache::edit::tag_start($target,$token);
177: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
178: $result.=&Apache::edit::end_table;
179: } elsif ($target eq 'modified') {
180: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
181: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
182: } elsif ($target eq 'tex' and $Apache::lonhomework::type ne 'exam') {
183: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
184: if ($size != 0) {$size=$size*2; $size.=' mm';} else {$size='40 mm';}
185: $result='\framebox['.$size.'][s]{\tiny\strut}';
186: }
187: return $result;
188: }
189:
190: sub end_textline {
191: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
192: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
193: elsif ($target eq 'edit') { return ('','no'); }
194: return "";
195: }
196:
197: sub finalizeawards {
198: my $result='';
199: my $award;
200: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
201: if ($result eq '' ) {
202: my $blankcount;
203: foreach $award (@_) {
204: if ($award eq '') {
205: $result='MISSING_ANSWER';
206: $blankcount++;
207: }
208: }
209: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
210: }
211: if ($result eq '' ) {
212: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
213: }
214: if ($result eq '' ) {
215: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
216: }
217: if ($result eq '' ) {
218: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
219: }
220:
221: if ($result eq '' ) {
222: foreach $award (@_) {
223: if ($award eq 'UNIT_FAIL' ||
224: $award eq 'NO_UNIT' ||
225: $award eq 'UNIT_NOTNEEDED') {
226: $result=$award; last;
227: }
228: }
229: }
230: if ($result eq '' ) {
231: foreach $award (@_) {
232: if ($award eq 'WANTED_NUMERIC' ||
233: $award eq 'BAD_FORMULA') {$result=$award; last;}
234: }
235: }
236: if ($result eq '' ) {
237: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
238: }
239: if ($result eq '' ) {
240: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
241: }
242: if ($result eq '' ) {
243: foreach $award (@_) { if ($award eq 'MISORDERED_RANK') {$result=$award; last;} }
244: }
245: if ($result eq '' ) {
246: foreach $award (@_) { if ($award eq 'INVALID_FILETYPE') {$result=$award; last;} }
247: }
248: if ($result eq '' ) {
249: foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
250: }
251: if ($result eq '' ) {
252: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
253: }
254: if ($result eq '' ) {
255: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
256: }
257: if ($result eq '' ) { $result='EXACT_ANS'; }
258: return $result
259: }
260:
261: sub decideoutput {
262: my ($award,$solved,$previous,$target)=@_;
263: my $message='';
264: my $button=0;
265: my $previousmsg;
266:
267: if ($previous) { $previousmsg='You have entered that answer before'; }
268:
269: if ($solved =~ /^correct/) {
270: if ($target eq 'tex') {
271: $message = '\textbf{You are correct}. Your receipt is '.
272: &Apache::lonnet::receipt;
273: } else {
274: $message = "<b>You are correct.</b> Your receipt is ".
275: &Apache::lonnet::receipt;
276: }
277: $button=0;
278: $previousmsg='';
279: } elsif ($solved =~ /^excused/) {
280: $message = "<b>You are excused from the problem.</b>";
281: $button=0;
282: $previousmsg='';
283: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
284: if ($solved =~ /^incorrect/ || $solved eq '') {
285: $message = "Incorrect";
286: $button=1;
287: } else {
288: $message = "<b>You are correct.</b> Your receipt is ".
289: &Apache::lonnet::receipt;
290: $button=0;
291: $previousmsg='';
292: }
293: } elsif ($award eq 'NO_RESPONSE') {
294: $message = '';
295: $button=1;
296: } elsif ($award eq 'MISSING_ANSWER') {
297: $message = 'Some parts were not submitted';
298: $button = 1;
299: } elsif ($award eq 'WANTED_NUMERIC') {
300: $message = "This question expects a numeric answer";
301: $button=1;
302: } elsif ($award eq 'MISORDERED_RANK') {
303: $message = 'You have provided an invalid ranking, please refer to '.
304: &Apache::loncommon::help_open_topic('Ranking_Problems','help on ranking problems').'.';
305: $button=1;
306: } elsif ($award eq 'INVALID_FILETYPE') {
307: $message = 'The filetype extension of the file you uploaded is not allowed.';
308: $button=1;
309: } elsif ($award eq 'SIG_FAIL') {
310: $message = "Please adjust significant figures.";# you provided %s significant figures";
311: $button=1;
312: } elsif ($award eq 'UNIT_FAIL') {
313: $message = "Units incorrect. ".
314: &Apache::loncommon::help_open_topic('Physical_Units'); #Computer reads units as %s";
315: $button=1;
316: } elsif ($award eq 'UNIT_NOTNEEDED') {
317: $message = "Only a number required.";# Computer reads units of %s";
318: $button=1;
319: } elsif ($award eq 'NO_UNIT') {
320: $message = "Units required".
321: &Apache::loncommon::help_open_topic('Physical_Units');
322: $button=1;
323: } elsif ($award eq 'BAD_FORMULA') {
324: $message = "Unable to understand formula";
325: $button=1;
326: } elsif ($award eq 'INCORRECT') {
327: $message = "Incorrect";
328: $button=1;
329: } elsif ($award eq 'SUBMITTED') {
330: $message = "Your submission has been recorded.";
331: $button=1;
332: } elsif ($award eq 'DRAFT') {
333: $message = "A draft copy has been saved.";
334: $button=1;
335: } else {
336: $message = "Unknown message: $award";
337: $button=1;
338: }
339: if ($Apache::lonhomework::type eq 'exam') {$message='';$previousmsg='';}
340: return ($button,$message,$previousmsg);
341: }
342:
343: sub removealldata {
344: my ($id)=@_;
345: foreach my $key (keys(%Apache::lonhomework::results)) {
346: if (($key =~ /^resource\.\Q$id\E\./) && ($key !~ /\.collaborators$/)) {
347: &Apache::lonxml::debug("Removing $key");
348: delete($Apache::lonhomework::results{$key});
349: }
350: }
351: }
352:
353: sub setgradedata {
354: my ($award,$id,$previously_used) = @_;
355: # if the student already has it correct, don't modify the status
356: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
357: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
358: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
359: return '';
360: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
361: /^correct/ ) {
362: #handle assignment of tries and solved status
363: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
364: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
365: }
366: if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
367: $Apache::lonhomework::results{"resource.$id.tries"} =
368: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
369: $Apache::lonhomework::results{"resource.$id.solved"} =
370: 'correct_by_student';
371: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
372: } elsif ( $award eq 'INCORRECT' ) {
373: $Apache::lonhomework::results{"resource.$id.tries"} =
374: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
375: $Apache::lonhomework::results{"resource.$id.solved"} =
376: 'incorrect_attempted'
377: } elsif ( $award eq 'SUBMITTED' ) {
378: $Apache::lonhomework::results{"resource.$id.tries"} =
379: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
380: $Apache::lonhomework::results{"resource.$id.solved"} =
381: 'ungraded_attempted';
382: } elsif ( $award eq 'DRAFT' ) {
383: $Apache::lonhomework::results{"resource.$id.solved"} = '';
384: } elsif ( $award eq 'NO_RESPONSE' ) {
385: #no real response so delete any data that got stored
386: &removealldata($id);
387: return '';
388: } else {
389: $Apache::lonhomework::results{"resource.$id.solved"} =
390: 'incorrect_attempted';
391: }
392:
393: # check if this was a previous submission if it was delete the
394: # unneeded data and update the previously_used attribute
395: if ( $previously_used eq 'PREVIOUSLY_USED') {
396: delete($Apache::lonhomework::results{"resource.$id.tries"});
397: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
398: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
399: #delete all data as they student didn't do anything, but save
400: #the list of collaborators.
401: &removealldata($id);
402: #and since they didn't do anything we were never here
403: return '';
404: } else {
405: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
406: }
407: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} =~
408: /^correct/ ) {
409: #delete all data as they student already has it correct
410: &removealldata($id);
411: #and since they didn't do anything we were never here
412: return '';
413: }
414: $Apache::lonhomework::results{"resource.$id.award"} = $award;
415: }
416:
417: sub grade {
418: my ($target) = @_;
419: my $id = $Apache::inputtags::part;
420: my $response='';
421: if ( defined $ENV{'form.submitted'}) {
422: my @awards = ();
423: foreach $response (@Apache::inputtags::responselist) {
424: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
425: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
426: &Apache::lonxml::debug("keeping $value from $response for $id");
427: push (@awards,$value);
428: }
429: my $finalaward = &finalizeawards(@awards);
430: my $previously_used;
431: if ( $#Apache::inputtags::previous eq $#awards ) {
432: my $match=0;
433: my @matches;
434: foreach my $versionar (@Apache::inputtags::previous_version) {
435: foreach my $version (@$versionar) {
436: $matches[$version]++;
437: }
438: }
439: foreach my $elem (@matches) {if ($elem eq ($#awards+1)) {$match=1;}}
440: if ($match) {
441: $previously_used = 'PREVIOUSLY_LAST';
442: foreach my $value (@Apache::inputtags::previous) {
443: if ($value eq 'PREVIOUSLY_USED' ) {
444: $previously_used = $value;
445: last;
446: }
447: }
448: }
449: }
450: &Apache::lonxml::debug("final award $finalaward, $previously_used");
451: &setgradedata($finalaward,$id,$previously_used);
452: }
453: return '';
454: }
455:
456: sub gradestatus {
457: my ($id,$target) = @_;
458: my $showbutton = 1;
459: my $message = '';
460: my $latemessage = '';
461: my $trystr='';
462: my $button='';
463: my $previousmsg='';
464:
465: my $status = $Apache::inputtags::status['-1'];
466: &Apache::lonxml::debug("gradestatus has :$status:");
467: if ( $status ne 'CLOSED' && $status ne 'UNAVAILABLE') {
468: my $award = $Apache::lonhomework::history{"resource.$id.award"};
469: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
470: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
471: &Apache::lonxml::debug("Found Award |$award|$solved|");
472: if ( $award ne '' ) {
473: &Apache::lonxml::debug('Getting message');
474: ($showbutton,$message,$previousmsg) =
475: &decideoutput($award,$solved,$previous,$target);
476: if ($target eq 'tex') {
477: $message=' '.$message.' ';
478: } else {
479: $message="<td bgcolor=\"#aaffaa\">$message</td>";
480: if ($previousmsg) {
481: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
482: }
483: }
484: }
485: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
486: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
487: &Apache::lonxml::debug("got maxtries of :$maxtries:");
488: if ( $tries eq '' ) { $tries = '0'; }
489: if ( $maxtries eq '' ) { $maxtries = '2'; }
490: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
491: if ( $showbutton ) {
492: if ($target eq 'tex') {
493: if ($ENV{'request.state'} ne "construct") {
494: $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 0 mm ';
495: } else {
496: $trystr = '\vskip 0 mm ';
497: }
498: } else {
499: $trystr = "<td>Tries $tries/$maxtries</td>";
500: }
501: }
502: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
503: if ( $showbutton ) {
504: if ($target ne 'tex') {
505: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
506: }
507: }
508: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
509: #last submissions was after due date
510: if ($target eq 'tex') {
511: $latemessage=' The last submission was after the Due Date ';
512: } else {
513: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
514: }
515: }
516: }
517: my $output= $previousmsg.$latemessage.$message.$trystr;
518: if ($output =~ /^\s*$/) {
519: return $button;
520: } else {
521: if ($target eq 'tex') {
522: return $button.' \vskip 0 mm '.$output.' ';
523: } else {
524: return $button.'<table><tr>'.$output.'</tr></table>';
525: }
526: }
527: }
528: 1;
529: __END__
530:
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