1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.73 2002/11/08 20:34:10 sakharuk 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: if ($Apache::lonhomework::type ne 'exam') {
157: $result= '<input type="text" name="HWVAL'.$id.'" value="'.
158: $oldresponse.'" size="'.$size.'" maxlength="'.$maxlength.'" />';
159: }
160: } else {
161: #right or wrong don't show what was last typed in.
162: #$result='<i>'.$oldresponse.'</i>';
163: $result='';
164: }
165: } elsif ($target eq 'edit') {
166: $result=&Apache::edit::tag_start($target,$token);
167: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
168: $result.=&Apache::edit::end_table;
169: } elsif ($target eq 'modified') {
170: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
171: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
172: }
173: return $result;
174: }
175:
176: sub end_textline {
177: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
178: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
179: elsif ($target eq 'edit') { return ('','no'); }
180: return "";
181: }
182:
183: sub finalizeawards {
184: my $result='';
185: my $award;
186: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
187: if ($result eq '' ) {
188: my $blankcount;
189: foreach $award (@_) {
190: if ($award eq '') {
191: $result='MISSING_ANSWER';
192: $blankcount++;
193: }
194: }
195: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
196: }
197: if ($result eq '' ) {
198: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
199: }
200: if ($result eq '' ) {
201: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
202: }
203: if ($result eq '' ) {
204: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
205: }
206:
207: if ($result eq '' ) {
208: foreach $award (@_) {
209: if ($award eq 'UNIT_FAIL' ||
210: $award eq 'NO_UNIT' ||
211: $award eq 'UNIT_NOTNEEDED') {
212: $result=$award; last;
213: }
214: }
215: }
216: if ($result eq '' ) {
217: foreach $award (@_) {
218: if ($award eq 'WANTED_NUMERIC' ||
219: $award eq 'BAD_FORMULA') {$result=$award; last;}
220: }
221: }
222: if ($result eq '' ) {
223: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
224: }
225: if ($result eq '' ) {
226: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
227: }
228: if ($result eq '' ) {
229: foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
230: }
231: if ($result eq '' ) {
232: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
233: }
234: if ($result eq '' ) {
235: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
236: }
237: if ($result eq '' ) { $result='EXACT_ANS'; }
238: return $result
239: }
240:
241: sub decideoutput {
242: my ($award,$solved,$previous,$target)=@_;
243: my $message='';
244: my $button=0;
245: my $previousmsg;
246:
247: if ($previous) { $previousmsg='You have entered that answer before'; }
248:
249: if ($solved =~ /^correct/) {
250: if ($target eq 'tex') {
251: $message = '\textbf{You are correct}. Your receipt is '.
252: &Apache::lonnet::receipt;
253: } else {
254: $message = "<b>You are correct.</b> Your receipt is ".
255: &Apache::lonnet::receipt;
256: }
257: $button=0;
258: $previousmsg='';
259: } elsif ($solved =~ /^excused/) {
260: $message = "<b>You are excused from the problem.</b>";
261: $button=0;
262: $previousmsg='';
263: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
264: if ($solved =~ /^incorrect/ || $solved eq '') {
265: $message = "Incorrect";
266: $button=1;
267: } else {
268: $message = "<b>You are correct.</b> Your receipt is ".
269: &Apache::lonnet::receipt;
270: $button=0;
271: $previousmsg='';
272: }
273: } elsif ($award eq 'NO_RESPONSE') {
274: $message = '';
275: $button=1;
276: } elsif ($award eq 'MISSING_ANSWER') {
277: $message = 'Some parts were not submitted';
278: $button = 1;
279: } elsif ($award eq 'WANTED_NUMERIC') {
280: $message = "This question expects a numeric answer";
281: $button=1;
282: } elsif ($award eq 'SIG_FAIL') {
283: $message = "Please adjust significant figures.";# you provided %s significant figures";
284: $button=1;
285: } elsif ($award eq 'UNIT_FAIL') {
286: $message = "Units incorrect."; #Computer reads units as %s";
287: $button=1;
288: } elsif ($award eq 'UNIT_NOTNEEDED') {
289: $message = "Only a number required.";# Computer reads units of %s";
290: $button=1;
291: } elsif ($award eq 'NO_UNIT') {
292: $message = "Units required";
293: $button=1;
294: } elsif ($award eq 'BAD_FORMULA') {
295: $message = "Unable to understand formula";
296: $button=1;
297: } elsif ($award eq 'INCORRECT') {
298: $message = "Incorrect";
299: $button=1;
300: } elsif ($award eq 'SUBMITTED') {
301: $message = "Your submission has been recorded.";
302: $button=1;
303: } elsif ($award eq 'DRAFT') {
304: $message = "A draft copy has been saved.";
305: $button=1;
306: } else {
307: $message = "Unknown message: $award";
308: $button=1;
309: }
310: return ($button,$message,$previousmsg);
311: }
312:
313: sub setgradedata {
314: my ($award,$id,$previously_used) = @_;
315: # if the student already has it correct, don't modify the status
316: if ($Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
317: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
318: $Apache::lonhomework::results{"resource.$id.afterduedate"}=$award;
319: return '';
320: } elsif ( $Apache::lonhomework::history{"resource.$id.solved"} !~
321: /^correct/ ) {
322: #handle assignment of tries and solved status
323: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
324: $Apache::lonhomework::results{"resource.$id.afterduedate"}='';
325: }
326: if ( $award eq 'APPROX_ANS' || $award eq 'EXACT_ANS' ) {
327: $Apache::lonhomework::results{"resource.$id.tries"} =
328: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
329: $Apache::lonhomework::results{"resource.$id.solved"} =
330: 'correct_by_student';
331: $Apache::lonhomework::results{"resource.$id.awarded"} = '1';
332: } elsif ( $award eq 'INCORRECT' ) {
333: $Apache::lonhomework::results{"resource.$id.tries"} =
334: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
335: $Apache::lonhomework::results{"resource.$id.solved"} =
336: 'incorrect_attempted'
337: } elsif ( $award eq 'SUBMITTED' ) {
338: $Apache::lonhomework::results{"resource.$id.tries"} =
339: $Apache::lonhomework::history{"resource.$id.tries"} + 1;
340: $Apache::lonhomework::results{"resource.$id.solved"} =
341: 'ungraded_attempted';
342: } elsif ( $award eq 'DRAFT' ) {
343: $Apache::lonhomework::results{"resource.$id.solved"} = '';
344: } elsif ( $award eq 'NO_RESPONSE' ) {
345: return '';
346: } else {
347: $Apache::lonhomework::results{"resource.$id.solved"} =
348: 'incorrect_attempted';
349: }
350:
351: # check if this was a previous submission if it was delete the
352: # unneeded data and update the previously_used attribute
353: if ( $previously_used eq 'PREVIOUSLY_USED') {
354: delete($Apache::lonhomework::results{"resource.$id.tries"});
355: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
356: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
357: #delete all data as they student didn't do anything, but save
358: #the list of collaborators.
359: foreach my $key (keys(%Apache::lonhomework::results)) {
360: if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {
361: &Apache::lonxml::debug("Removing $key");
362: delete($Apache::lonhomework::results{$key});
363: }
364: }
365: #and since they didn't do anything we were never here
366: return '';
367: } else {
368: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
369: }
370: }
371: $Apache::lonhomework::results{"resource.$id.award"} = $award;
372: }
373:
374: sub grade {
375: my ($target) = @_;
376: my $id = $Apache::inputtags::part;
377: my $response='';
378: if ( defined $ENV{'form.submitted'}) {
379: my @awards = ();
380: foreach $response (@Apache::inputtags::responselist) {
381: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
382: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
383: &Apache::lonxml::debug("keeping $value from $response for $id");
384: push (@awards,$value);
385: }
386: my $finalaward = &finalizeawards(@awards);
387: my $previously_used;
388: if ( $#Apache::inputtags::previous eq $#awards ) {
389: $previously_used = 'PREVIOUSLY_LAST';
390: foreach my $value (@Apache::inputtags::previous) {
391: if ($value eq 'PREVIOUSLY_USED' ) {
392: $previously_used = $value;
393: last;
394: }
395: }
396: }
397: &Apache::lonxml::debug("final award $finalaward, $previously_used");
398: &setgradedata($finalaward,$id,$previously_used);
399: }
400: return '';
401: }
402:
403: sub gradestatus {
404: my ($id,$target) = @_;
405: my $showbutton = 1;
406: my $message = '';
407: my $latemessage = '';
408: my $trystr='';
409: my $button='';
410: my $previousmsg='';
411:
412: my $status = $Apache::inputtags::status['-1'];
413: &Apache::lonxml::debug("gradestatus has :$status:");
414: if ( $status ne 'CLOSED' ) {
415: my $award = $Apache::lonhomework::history{"resource.$id.award"};
416: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
417: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
418: &Apache::lonxml::debug("Found Award |$award|$solved|");
419: if ( $award ne '' ) {
420: &Apache::lonxml::debug('Getting message');
421: ($showbutton,$message,$previousmsg) =
422: &decideoutput($award,$solved,$previous,$target);
423: if ($target eq 'tex') {
424: $message=' '.$message.' ';
425: } else {
426: $message="<td bgcolor=\"#aaffaa\">$message</td>";
427: if ($previousmsg) {
428: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
429: }
430: }
431: }
432: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
433: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
434: &Apache::lonxml::debug("got maxtries of :$maxtries:");
435: if ( $tries eq '' ) { $tries = '0'; }
436: if ( $maxtries eq '' ) { $maxtries = '2'; }
437: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
438: if ( $showbutton ) {
439: if ($target eq 'tex') {
440: if ($ENV{'request.state'} ne "construct") {
441: $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} \vskip 0 mm ';
442: }
443: } else {
444: $trystr = "<td>Tries $tries/$maxtries</td>";
445: }
446: }
447: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
448: if ( $showbutton ) {
449: if ($target ne 'tex') {
450: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
451: }
452: }
453: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
454: #last submissions was after due date
455: if ($target eq 'tex') {
456: $latemessage=' The last submission was after the Due Date ';
457: } else {
458: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
459: }
460: }
461: }
462: my $output= $previousmsg.$latemessage.$message.$trystr;
463: if ($output =~ /^\s*$/) {
464: return $button;
465: } else {
466: if ($target eq 'tex') {
467: return $button.' \vskip 0 mm '.$output.' ';
468: } else {
469: return $button.'<table><tr>'.$output.'</tr></table>';
470: }
471: }
472: }
473: 1;
474: __END__
475:
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