1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.72 2002/11/06 22:40:29 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:
34: BEGIN {
35: &Apache::lonxml::register('Apache::inputtags',('textfield','textline'));
36: }
37:
38:
39: sub initialize_inputtags {
40: # list of current input ids
41: @Apache::inputtags::input=();
42: # list of all input ids seen in this problem
43: @Apache::inputtags::inputlist=();
44: # list of all current response ids
45: @Apache::inputtags::response=();
46: # list of all response ids seen in this problem
47: @Apache::inputtags::responselist=();
48: # list of whether or not a specific response was previously used
49: @Apache::inputtags::previous=();
50: # id of current part, 0 means that no part is current (inside <problem> only
51: $Apache::inputtags::part='';
52: # list of problem date statuses, the first element is for <problem>
53: # if there is a second element it is for the current <part>
54: @Apache::inputtags::status=();
55: # hash of defined params for the current response
56: %Apache::inputtags::params=();
57: # list of all ids, for <import>, these get join()ed and prepended
58: @Apache::inputtags::import=();
59: }
60:
61: sub start_input {
62: my ($parstack,$safeeval)=@_;
63: my $id = &Apache::lonxml::get_param('id',$parstack,$safeeval);
64: if ($id eq '') { $id = $Apache::lonxml::curdepth; }
65: push (@Apache::inputtags::input,$id);
66: push (@Apache::inputtags::inputlist,$id);
67: return $id;
68: }
69:
70: sub end_input {
71: pop @Apache::inputtags::input;
72: return '';
73: }
74:
75: sub start_textfield {
76: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
77: my $result = "";
78: my $id = &start_input($parstack,$safeeval);
79: my $resid=$Apache::inputtags::response[-1];
80: if ($target eq 'web') {
81: $Apache::lonxml::evaluate--;
82: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
83: my $partid=$Apache::inputtags::part;
84: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
85: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
86: if ( $cols eq '') { $cols = 80; }
87: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
88: if ( $rows eq '') { $rows = 10; }
89: $result= '<textarea name="HWVAL'.$resid.'" '.
90: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
91: if ($oldresponse ne '') {
92: #get rid of any startup text if the user has already responded
93: &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
94: }
95: } else {
96: #right or wrong don't show it
97: #$result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
98: $result='';
99: #get rid of any startup text
100: &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
101: }
102: } elsif ($target eq 'grade') {
103: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
104: if ($seedtext eq $ENV{'form.HWVAL'.$resid}) {
105: # if the seed text is still there it wasn't a real submission
106: $ENV{'form.HWVAL'.$resid}='';
107: }
108: } elsif ($target eq 'edit') {
109: $result.=&Apache::edit::tag_start($target,$token);
110: $result.=&Apache::edit::text_arg('Rows:','rows',$token,4);
111: $result.=&Apache::edit::text_arg('Columns:','cols',$token,4);
112: my $bodytext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
113: $result.=&Apache::edit::editfield($token->[1],$bodytext,'Text you want to appear by default:',80,2);
114: } elsif ($target eq 'modified') {
115: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
116: $safeeval,'rows','cols');
117: if ($constructtag) {
118: $result = &Apache::edit::rebuild_tag($token);
119: } else {
120: $result=$token->[4];
121: }
122: $result.=&Apache::edit::modifiedfield();
123: }
124: return $result;
125: }
126:
127: sub end_textfield {
128: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
129: my $result;
130: if ($target eq 'web') {
131: $Apache::lonxml::evaluate++;
132: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
133: return "</textarea>";
134: }
135: } elsif ($target eq 'edit') {
136: $result=&Apache::edit::end_table();
137: }
138: &end_input;
139: return $result;
140: }
141:
142: sub start_textline {
143: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
144: my $result = "";
145: if ($target eq 'web') {
146: $Apache::lonxml::evaluate--;
147: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
148: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
149: my $maxlength;
150: if ($size eq '') { $size=20; } else {
151: if ($size < 20) { $maxlength=$size; }
152: }
153: my $partid=$Apache::inputtags::part;
154: my $id=$Apache::inputtags::response[-1];
155: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
156: $result= '<input type="text" name="HWVAL'.$id.'" value="'.
157: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
158: } else {
159: #right or wrong don't show what was last typed in.
160: #$result='<i>'.$oldresponse.'</i>';
161: $result='';
162: }
163: } elsif ($target eq 'edit') {
164: $result=&Apache::edit::tag_start($target,$token);
165: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
166: $result.=&Apache::edit::end_table;
167: } elsif ($target eq 'modified') {
168: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
169: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
170: }
171: return $result;
172: }
173:
174: sub end_textline {
175: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
176: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
177: elsif ($target eq 'edit') { return ('','no'); }
178: return "";
179: }
180:
181: sub finalizeawards {
182: my $result='';
183: my $award;
184: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
185: if ($result eq '' ) {
186: my $blankcount;
187: foreach $award (@_) {
188: if ($award eq '') {
189: $result='MISSING_ANSWER';
190: $blankcount++;
191: }
192: }
193: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
194: }
195: if ($result eq '' ) {
196: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
197: }
198: if ($result eq '' ) {
199: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
200: }
201: if ($result eq '' ) {
202: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
203: }
204:
205: if ($result eq '' ) {
206: foreach $award (@_) {
207: if ($award eq 'UNIT_FAIL' ||
208: $award eq 'NO_UNIT' ||
209: $award eq 'UNIT_NOTNEEDED') {
210: $result=$award; last;
211: }
212: }
213: }
214: if ($result eq '' ) {
215: foreach $award (@_) {
216: if ($award eq 'WANTED_NUMERIC' ||
217: $award eq 'BAD_FORMULA') {$result=$award; last;}
218: }
219: }
220: if ($result eq '' ) {
221: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
222: }
223: if ($result eq '' ) {
224: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
225: }
226: if ($result eq '' ) {
227: foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
228: }
229: if ($result eq '' ) {
230: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
231: }
232: if ($result eq '' ) {
233: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
234: }
235: if ($result eq '' ) { $result='EXACT_ANS'; }
236: return $result
237: }
238:
239: sub decideoutput {
240: my ($award,$solved,$previous,$target)=@_;
241: my $message='';
242: my $button=0;
243: my $previousmsg;
244:
245: if ($previous) { $previousmsg='You have entered that answer before'; }
246:
247: if ($solved =~ /^correct/) {
248: if ($target eq 'tex') {
249: $message = '\textbf{You are correct}. Your receipt is '.
250: &Apache::lonnet::receipt;
251: } else {
252: $message = "<b>You are correct.</b> Your receipt is ".
253: &Apache::lonnet::receipt;
254: }
255: $button=0;
256: $previousmsg='';
257: } elsif ($solved =~ /^excused/) {
258: $message = "<b>You are excused from the problem.</b>";
259: $button=0;
260: $previousmsg='';
261: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
262: if ($solved =~ /^incorrect/ || $solved eq '') {
263: $message = "Incorrect";
264: $button=1;
265: } else {
266: $message = "<b>You are correct.</b> Your receipt is ".
267: &Apache::lonnet::receipt;
268: $button=0;
269: $previousmsg='';
270: }
271: } elsif ($award eq 'NO_RESPONSE') {
272: $message = '';
273: $button=1;
274: } elsif ($award eq 'MISSING_ANSWER') {
275: $message = 'Some parts were not submitted';
276: $button = 1;
277: } elsif ($award eq 'WANTED_NUMERIC') {
278: $message = "This question expects a numeric answer";
279: $button=1;
280: } elsif ($award eq 'SIG_FAIL') {
281: $message = "Please adjust significant figures.";# you provided %s significant figures";
282: $button=1;
283: } elsif ($award eq 'UNIT_FAIL') {
284: $message = "Units incorrect."; #Computer reads units as %s";
285: $button=1;
286: } elsif ($award eq 'UNIT_NOTNEEDED') {
287: $message = "Only a number required.";# Computer reads units of %s";
288: $button=1;
289: } elsif ($award eq 'NO_UNIT') {
290: $message = "Units required";
291: $button=1;
292: } elsif ($award eq 'BAD_FORMULA') {
293: $message = "Unable to understand formula";
294: $button=1;
295: } elsif ($award eq 'INCORRECT') {
296: $message = "Incorrect";
297: $button=1;
298: } elsif ($award eq 'SUBMITTED') {
299: $message = "Your submission has been recorded.";
300: $button=1;
301: } elsif ($award eq 'DRAFT') {
302: $message = "A draft copy has been saved.";
303: $button=1;
304: } else {
305: $message = "Unknown message: $award";
306: $button=1;
307: }
308: return ($button,$message,$previousmsg);
309: }
310:
311: sub setgradedata {
312: my ($award,$id,$previously_used) = @_;
313: # if the student already has it correct, don't modify the status
314: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
315: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
316: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
317: return '';
318: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
319: /^correct/ ) {
320: #handle assignment of tries and solved status
321: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
322: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
323: }
324: if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
325: $Apache::lonhomework::results{"resource.$id.tries"} =
326: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
327: $Apache::lonhomework::results{"resource.$id.solved"} =
328: 'correct_by_student';
329: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
330: } elsif ( $award eq 'INCORRECT' ) {
331: $Apache::lonhomework::results{"resource.$id.tries"} =
332: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
333: $Apache::lonhomework::results{"resource.$id.solved"} =
334: 'incorrect_attempted'
335: } elsif ( $award eq 'SUBMITTED' ) {
336: $Apache::lonhomework::results{"resource.$id.tries"} =
337: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
338: $Apache::lonhomework::results{"resource.$id.solved"} =
339: 'ungraded_attempted';
340: } elsif ( $award eq 'DRAFT' ) {
341: $Apache::lonhomework::results{"resource.$id.solved"} = '';
342: } elsif ( $award eq 'NO_RESPONSE' ) {
343: return '';
344: } else {
345: $Apache::lonhomework::results{"resource.$id.solved"} =
346: 'incorrect_attempted';
347: }
348:
349: # check if this was a previous submission if it was delete the
350: # unneeded data and update the previously_used attribute
351: if ( $previously_used eq 'PREVIOUSLY_USED') {
352: delete($Apache::lonhomework::results{"resource.$id.tries"});
353: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
354: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
355: #delete all data as they student didn't do anything, but save
356: #the list of collaborators.
357: foreach my $key (keys(%Apache::lonhomework::results)) {
358: if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {
359: &Apache::lonxml::debug("Removing $key");
360: delete($Apache::lonhomework::results{$key});
361: }
362: }
363: #and since they didn't do anything we were never here
364: return '';
365: } else {
366: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
367: }
368: }
369: $Apache::lonhomework::results{"resource.$id.award"} = $award;
370: }
371:
372: sub grade {
373: my ($target) = @_;
374: my $id = $Apache::inputtags::part;
375: my $response='';
376: if ( defined $ENV{'form.submitted'}) {
377: my @awards = ();
378: foreach $response (@Apache::inputtags::responselist) {
379: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
380: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
381: &Apache::lonxml::debug("keeping $value from $response for $id");
382: push (@awards,$value);
383: }
384: my $finalaward = &finalizeawards(@awards);
385: my $previously_used;
386: if ( $#Apache::inputtags::previous eq $#awards ) {
387: $previously_used = 'PREVIOUSLY_LAST';
388: foreach my $value (@Apache::inputtags::previous) {
389: if ($value eq 'PREVIOUSLY_USED' ) {
390: $previously_used = $value;
391: last;
392: }
393: }
394: }
395: &Apache::lonxml::debug("final award $finalaward, $previously_used");
396: &setgradedata($finalaward,$id,$previously_used);
397: }
398: return '';
399: }
400:
401: sub gradestatus {
402: my ($id,$target) = @_;
403: my $showbutton = 1;
404: my $message = '';
405: my $latemessage = '';
406: my $trystr='';
407: my $button='';
408: my $previousmsg='';
409:
410: my $status = $Apache::inputtags::status['-1'];
411: &Apache::lonxml::debug("gradestatus has :$status:");
412: if ( $status ne 'CLOSED' ) {
413: my $award = $Apache::lonhomework::history{"resource.$id.award"};
414: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
415: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
416: &Apache::lonxml::debug("Found Award |$award|$solved|");
417: if ( $award ne '' ) {
418: &Apache::lonxml::debug('Getting message');
419: ($showbutton,$message,$previousmsg) =
420: &decideoutput($award,$solved,$previous,$target);
421: if ($target eq 'tex') {
422: $message=' '.$message.' ';
423: } else {
424: $message="<td bgcolor=\"#aaffaa\">$message</td>";
425: if ($previousmsg) {
426: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
427: }
428: }
429: }
430: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
431: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
432: &Apache::lonxml::debug("got maxtries of :$maxtries:");
433: if ( $tries eq '' ) { $tries = '0'; }
434: if ( $maxtries eq '' ) { $maxtries = '2'; }
435: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
436: if ( $showbutton ) {
437: if ($target eq 'tex') {
438: if ($ENV{'request.state'} ne "construct") {
439: $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 0 mm ';
440: }
441: } else {
442: $trystr = "<td>Tries $tries/$maxtries</td>";
443: }
444: }
445: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
446: if ( $showbutton ) {
447: if ($target ne 'tex') {
448: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
449: }
450: }
451: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
452: #last submissions was after due date
453: if ($target eq 'tex') {
454: $latemessage=' The last submission was after the Due Date ';
455: } else {
456: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
457: }
458: }
459: }
460: my $output= $previousmsg.$latemessage.$message.$trystr;
461: if ($output =~ /^\s*$/) {
462: return $button;
463: } else {
464: if ($target eq 'tex') {
465: return $button.' \vskip 0 mm '.$output.' ';
466: } else {
467: return $button.'<table><tr>'.$output.'</tr></table>';
468: }
469: }
470: }
471: 1;
472: __END__
473:
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