1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.58 2002/07/25 20:55:13 ng 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','datasubmission'));
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: my $partid=$Apache::inputtags::part;
83: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$resid.submission"});
84: my $cols = &Apache::lonxml::get_param('cols',$parstack,$safeeval);
85: if ( $cols eq '') { $cols = 80; }
86: my $rows = &Apache::lonxml::get_param('rows',$parstack,$safeeval);
87: if ( $rows eq '') { $rows = 10; }
88: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
89: $result= '<textarea name="HWVAL'.$resid.'" '.
90: "rows=\"$rows\" cols=\"$cols\">".$oldresponse;
91: } else {
92: $result='<table border="1"><tr><td><i>'.$oldresponse.'</i></td></tr></table>';
93: }
94: if ($oldresponse ne '') {
95: #get rid of any startup text if the user has already responded
96: &Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
97: }
98: }
99: if ($target eq 'grade') {
100: my $seedtext=&Apache::lonxml::get_all_text("/textfield",$$parser[-1]);
101: if ($seedtext eq $ENV{'form.HWVAL'.$resid}) {
102: # if the seed text is still there it wasn't a real submission
103: $ENV{'form.HWVAL'.$resid}='';
104: }
105: }
106: return $result;
107: }
108:
109: sub end_textfield {
110: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
111: if ($target eq 'web') {
112: $Apache::lonxml::evaluate++;
113: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
114: return "</textarea>";
115: }
116: }
117: &end_input;
118: return '';
119: }
120:
121: sub start_textline {
122: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
123: my $result = "";
124: if ($target eq 'web') {
125: $Apache::lonxml::evaluate--;
126: my $size = &Apache::lonxml::get_param('size',$parstack,$safeeval);
127: if ($size eq '') { $size=20; }
128: my $partid=$Apache::inputtags::part;
129: my $id=$Apache::inputtags::response[-1];
130: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
131: if ($Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
132: $result= '<input type="text" name="HWVAL'.$id.'" value="'.
133: $oldresponse.'" size="'.$size.'" />';
134: } else {
135: $result='<i>'.$oldresponse.'</i>';
136: }
137: } elsif ($target eq 'edit') {
138: $result=&Apache::edit::tag_start($target,$token);
139: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
140: $result.=&Apache::edit::end_table;
141: } elsif ($target eq 'modified') {
142: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
143: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
144: }
145: return $result;
146: }
147:
148: sub end_textline {
149: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
150: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
151: elsif ($target eq 'edit') { return ('','no'); }
152: return "";
153: }
154:
155: sub start_datasubmission {
156: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
157: my $id = &Apache::response::start_response($parstack,$safeeval);
158: my $result;
159: if ($target eq 'meta') {
160: $result = &Apache::response::meta_stores_write($token->[2]->{'name'},
161: $token->[2]->{'type'},
162: $token->[2]->{'display'});
163: $result .= &Apache::response::meta_package_write('datasubmission');
164: }
165: return $result;
166: }
167:
168: sub end_datasubmission {
169: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
170: my $result;
171: if ( $target eq 'web' ) {
172: } elsif ($target eq 'grade' ) {
173: if ( defined $ENV{'form.submitted'}) {
174: &Apache::response::setup_params('datasubmission');
175: my $partid = $Apache::inputtags::part;
176: my $id = $Apache::inputtags::response['-1'];
177: my $response = $ENV{'form.HWVAL'.$id};
178: my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
179: if ( $response =~ /[^\s]/) {
180: $Apache::lonhomework::results{"resource.$partid.$id.$name"}=
181: $response;
182: }
183: }
184: }
185: &Apache::response::end_response;
186: return $result;
187: }
188:
189: sub finalizeawards {
190: my $result='';
191: my $award;
192: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
193: if ($result eq '' ) {
194: my $blankcount;
195: foreach $award (@_) {
196: if ($award eq '') {
197: $result='MISSING_ANSWER';
198: $blankcount++;
199: }
200: }
201: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
202: }
203: if ($result eq '' ) {
204: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
205: }
206: if ($result eq '' ) {
207: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
208: }
209: if ($result eq '' ) {
210: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
211: }
212:
213: if ($result eq '' ) {
214: foreach $award (@_) {
215: if ($award eq 'UNIT_FAIL' ||
216: $award eq 'NO_UNIT' ||
217: $award eq 'UNIT_NOTNEEDED') {
218: $result=$award; last;
219: }
220: }
221: }
222: if ($result eq '' ) {
223: foreach $award (@_) {
224: if ($award eq 'WANTED_NUMERIC' ||
225: $award eq 'BAD_FORMULA') {$result=$award; last;}
226: }
227: }
228: if ($result eq '' ) {
229: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
230: }
231: if ($result eq '' ) {
232: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
233: }
234: if ($result eq '' ) {
235: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
236: }
237: if ($result eq '' ) {
238: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
239: }
240: if ($result eq '' ) { $result='EXACT_ANS'; }
241: return $result
242: }
243:
244: sub decideoutput {
245: my ($award,$solved,$previous)=@_;
246: my $message='';
247: my $button=0;
248: my $previousmsg;
249:
250: if ($previous) { $previousmsg='You have entered that answer before'; }
251:
252: if ($solved =~ /^correct/) {
253: $message = "<b>You are correct.</b> Your receipt is ".
254: &Apache::lonnet::receipt;
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: } else {
302: $message = "Unknown message: $award";
303: $button=1;
304: }
305: return ($button,$message,$previousmsg);
306: }
307:
308: sub setgradedata {
309: my ($award,$id,$previously_used) = @_;
310: # if the student already has it correct, don't modify the status
311: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER') {
312: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
313: return '';
314: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
315: /^correct/ ) {
316: #handle assignment of tries and solved status
317: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
318: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
319: }
320: if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
321: $Apache::lonhomework::results{"resource.$id.tries"} =
322: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
323: $Apache::lonhomework::results{"resource.$id.solved"} =
324: 'correct_by_student';
325: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
326: } elsif ( $award eq 'INCORRECT' ) {
327: $Apache::lonhomework::results{"resource.$id.tries"} =
328: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
329: $Apache::lonhomework::results{"resource.$id.solved"} =
330: 'incorrect_attempted';
331: } elsif ( $award eq 'SUBMITTED' ) {
332: $Apache::lonhomework::results{"resource.$id.tries"} =
333: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
334: $Apache::lonhomework::results{"resource.$id.solved"} =
335: 'ungraded_attempted';
336: } elsif ( $award eq 'NO_RESPONSE' ) {
337: return '';
338: } else {
339: $Apache::lonhomework::results{"resource.$id.solved"} =
340: 'incorrect_attempted';
341: }
342:
343: # check if this was a previous submission if it was delete the
344: # unneeded data and update the previously_used attribute
345: if ( $previously_used eq 'PREVIOUSLY_USED') {
346: delete($Apache::lonhomework::results{"resource.$id.tries"});
347: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
348: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
349: #delete all data as they student didn't do anything, but save
350: #the list of collaborators.
351: foreach my $key (keys(%Apache::lonhomework::results)) {
352: if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {
353: &Apache::lonxml::debug("Removing $key");
354: delete($Apache::lonhomework::results{$key});
355: }
356: }
357: #and since they didn't do anything we were never here
358: return '';
359: } else {
360: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
361: }
362: }
363: $Apache::lonhomework::results{"resource.$id.award"} = $award;
364: }
365:
366: sub grade {
367: my ($target) = @_;
368: my $id = $Apache::inputtags::part;
369: my $response='';
370: if ( defined $ENV{'form.submitted'}) {
371: my @awards = ();
372: foreach $response (@Apache::inputtags::responselist) {
373: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
374: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
375: &Apache::lonxml::debug("keeping $value from $response for $id");
376: push (@awards,$value);
377: }
378: my $finalaward = &finalizeawards(@awards);
379: my $previously_used;
380: if ( $#Apache::inputtags::previous eq $#awards ) {
381: $previously_used = 'PREVIOUSLY_LAST';
382: foreach my $value (@Apache::inputtags::previous) {
383: if ($value eq 'PREVIOUSLY_USED' ) {
384: $previously_used = $value;
385: last;
386: }
387: }
388: }
389: &Apache::lonxml::debug("final award $finalaward, $previously_used");
390: &setgradedata($finalaward,$id,$previously_used);
391: }
392: return '';
393: }
394:
395: sub gradestatus {
396: my ($id) = @_;
397: my $showbutton = 1;
398: my $message = '';
399: my $latemessage = '';
400: my $trystr='';
401: my $button='';
402: my $previousmsg='';
403:
404: my $status = $Apache::inputtags::status['-1'];
405: &Apache::lonxml::debug("gradestatus has :$status:");
406: if ( $status ne 'CLOSED' ) {
407: my $award = $Apache::lonhomework::history{"resource.$id.award"};
408: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
409: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
410: &Apache::lonxml::debug("Found Award |$award|$solved|");
411: if ( $award ne '' ) {
412: &Apache::lonxml::debug('Getting message');
413: ($showbutton,$message,$previousmsg) =
414: &decideoutput($award,$solved,$previous);
415: $message="<td bgcolor=\"#aaffaa\">$message</td>";
416: if ($previousmsg) {
417: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
418: }
419: }
420: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
421: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
422: &Apache::lonxml::debug("got maxtries of :$maxtries:");
423: if ( $tries eq '' ) { $tries = '0'; }
424: if ( $maxtries eq '' ) { $maxtries = '2'; }
425: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
426: if ( $showbutton ) {
427: $trystr = "<td>Tries $tries/$maxtries</td>";
428: }
429: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
430: if ( $showbutton ) {
431: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
432: }
433: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
434: #last submissions was after due date
435: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
436: }
437: }
438: my $output= $previousmsg.$latemessage.$message.$trystr;
439: if ($output =~ /^\s*$/) {
440: return $button;
441: } else {
442: return $button.'<table><tr>'.$output.'</tr></table>';
443: }
444: }
445: 1;
446: __END__
447:
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