1: # The LearningOnline Network with CAPA
2: # input definitons
3: #
4: # $Id: inputtags.pm,v 1.68 2002/10/24 19:20:17 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,$safeeval);
149: if ($size eq '') { $size=20; }
150: my $partid=$Apache::inputtags::part;
151: my $id=$Apache::inputtags::response[-1];
152: my $oldresponse = &HTML::Entities::encode($Apache::lonhomework::history{"resource.$partid.$id.submission"});
153: $result= '<input type="text" name="HWVAL'.$id.'" value="'.
154: $oldresponse.'" size="'.$size.'" />';
155: } else {
156: #right or wrong don't show what was last typed in.
157: #$result='<i>'.$oldresponse.'</i>';
158: $result='';
159: }
160: } elsif ($target eq 'edit') {
161: $result=&Apache::edit::tag_start($target,$token);
162: $result.=&Apache::edit::text_arg('Size:','size',$token,'5')."</td></tr>";
163: $result.=&Apache::edit::end_table;
164: } elsif ($target eq 'modified') {
165: my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,'size');
166: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
167: }
168: return $result;
169: }
170:
171: sub end_textline {
172: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
173: if ($target eq 'web') { $Apache::lonxml::evaluate++; }
174: elsif ($target eq 'edit') { return ('','no'); }
175: return "";
176: }
177:
178: sub finalizeawards {
179: my $result='';
180: my $award;
181: if ($#_ == '-1') { $result = "NO_RESPONSE"; }
182: if ($result eq '' ) {
183: my $blankcount;
184: foreach $award (@_) {
185: if ($award eq '') {
186: $result='MISSING_ANSWER';
187: $blankcount++;
188: }
189: }
190: if ($blankcount == ($#_ + 1)) { $result = 'NO_RESPONSE'; }
191: }
192: if ($result eq '' ) {
193: foreach $award (@_) { if ($award eq 'MISSING_ANSWER') {$result='MISSING_ANSWER'; last;}}
194: }
195: if ($result eq '' ) {
196: foreach $award (@_) { if ($award eq 'ERROR') {$result='ERROR'; last;}}
197: }
198: if ($result eq '' ) {
199: foreach $award (@_) { if ($award eq 'NO_RESPONSE') {$result='NO_RESPONSE'; last;} }
200: }
201:
202: if ($result eq '' ) {
203: foreach $award (@_) {
204: if ($award eq 'UNIT_FAIL' ||
205: $award eq 'NO_UNIT' ||
206: $award eq 'UNIT_NOTNEEDED') {
207: $result=$award; last;
208: }
209: }
210: }
211: if ($result eq '' ) {
212: foreach $award (@_) {
213: if ($award eq 'WANTED_NUMERIC' ||
214: $award eq 'BAD_FORMULA') {$result=$award; last;}
215: }
216: }
217: if ($result eq '' ) {
218: foreach $award (@_) { if ($award eq 'SIG_FAIL') {$result=$award; last;} }
219: }
220: if ($result eq '' ) {
221: foreach $award (@_) { if ($award eq 'INCORRECT') {$result=$award; last;} }
222: }
223: if ($result eq '' ) {
224: foreach $award (@_) { if ($award eq 'DRAFT') {$result=$award; last;} }
225: }
226: if ($result eq '' ) {
227: foreach $award (@_) { if ($award eq 'SUBMITTED') {$result=$award; last;} }
228: }
229: if ($result eq '' ) {
230: foreach $award (@_) { if ($award eq 'APPROX_ANS') {$result=$award; last;} }
231: }
232: if ($result eq '' ) { $result='EXACT_ANS'; }
233: return $result
234: }
235:
236: sub decideoutput {
237: my ($award,$solved,$previous,$target)=@_;
238: my $message='';
239: my $button=0;
240: my $previousmsg;
241:
242: if ($previous) { $previousmsg='You have entered that answer before'; }
243:
244: if ($solved =~ /^correct/) {
245: if ($target eq 'tex') {
246: $message = '\textbf{You are correct}. Your receipt is '.
247: &Apache::lonnet::receipt;
248: } else {
249: $message = "<b>You are correct.</b> Your receipt is ".
250: &Apache::lonnet::receipt;
251: }
252: $button=0;
253: $previousmsg='';
254: } elsif ($solved =~ /^excused/) {
255: $message = "<b>You are excused from the problem.</b>";
256: $button=0;
257: $previousmsg='';
258: } elsif ($award eq 'EXACT_ANS' || $award eq 'APPROX_ANS' ) {
259: if ($solved =~ /^incorrect/ || $solved eq '') {
260: $message = "Incorrect";
261: $button=1;
262: } else {
263: $message = "<b>You are correct.</b> Your receipt is ".
264: &Apache::lonnet::receipt;
265: $button=0;
266: $previousmsg='';
267: }
268: } elsif ($award eq 'NO_RESPONSE') {
269: $message = '';
270: $button=1;
271: } elsif ($award eq 'MISSING_ANSWER') {
272: $message = 'Some parts were not submitted';
273: $button = 1;
274: } elsif ($award eq 'WANTED_NUMERIC') {
275: $message = "This question expects a numeric answer";
276: $button=1;
277: } elsif ($award eq 'SIG_FAIL') {
278: $message = "Please adjust significant figures.";# you provided %s significant figures";
279: $button=1;
280: } elsif ($award eq 'UNIT_FAIL') {
281: $message = "Units incorrect."; #Computer reads units as %s";
282: $button=1;
283: } elsif ($award eq 'UNIT_NOTNEEDED') {
284: $message = "Only a number required.";# Computer reads units of %s";
285: $button=1;
286: } elsif ($award eq 'NO_UNIT') {
287: $message = "Units required";
288: $button=1;
289: } elsif ($award eq 'BAD_FORMULA') {
290: $message = "Unable to understand formula";
291: $button=1;
292: } elsif ($award eq 'INCORRECT') {
293: $message = "Incorrect";
294: $button=1;
295: } elsif ($award eq 'SUBMITTED') {
296: $message = "Your submission has been recorded.";
297: $button=1;
298: } elsif ($award eq 'DRAFT') {
299: $message = "A draft copy has been saved.";
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 'DRAFT' ) {
337: $Apache::lonhomework::results{"resource.$id.solved"} = '';
338: } elsif ( $award eq 'NO_RESPONSE' ) {
339: return '';
340: } else {
341: $Apache::lonhomework::results{"resource.$id.solved"} =
342: 'incorrect_attempted';
343: }
344:
345: # check if this was a previous submission if it was delete the
346: # unneeded data and update the previously_used attribute
347: if ( $previously_used eq 'PREVIOUSLY_USED') {
348: delete($Apache::lonhomework::results{"resource.$id.tries"});
349: $Apache::lonhomework::results{"resource.$id.previous"} = '1';
350: } elsif ( $previously_used eq 'PREVIOUSLY_LAST') {
351: #delete all data as they student didn't do anything, but save
352: #the list of collaborators.
353: foreach my $key (keys(%Apache::lonhomework::results)) {
354: if (($key =~ /^resource\.$id\./) && ($key !~ /\.collaborators$/)) {
355: &Apache::lonxml::debug("Removing $key");
356: delete($Apache::lonhomework::results{$key});
357: }
358: }
359: #and since they didn't do anything we were never here
360: return '';
361: } else {
362: $Apache::lonhomework::results{"resource.$id.previous"} = '0';
363: }
364: }
365: $Apache::lonhomework::results{"resource.$id.award"} = $award;
366: }
367:
368: sub grade {
369: my ($target) = @_;
370: my $id = $Apache::inputtags::part;
371: my $response='';
372: if ( defined $ENV{'form.submitted'}) {
373: my @awards = ();
374: foreach $response (@Apache::inputtags::responselist) {
375: &Apache::lonxml::debug("looking for response.$id.$response.awarddetail");
376: my $value=$Apache::lonhomework::results{"resource.$id.$response.awarddetail"};
377: &Apache::lonxml::debug("keeping $value from $response for $id");
378: push (@awards,$value);
379: }
380: my $finalaward = &finalizeawards(@awards);
381: my $previously_used;
382: if ( $#Apache::inputtags::previous eq $#awards ) {
383: $previously_used = 'PREVIOUSLY_LAST';
384: foreach my $value (@Apache::inputtags::previous) {
385: if ($value eq 'PREVIOUSLY_USED' ) {
386: $previously_used = $value;
387: last;
388: }
389: }
390: }
391: &Apache::lonxml::debug("final award $finalaward, $previously_used");
392: &setgradedata($finalaward,$id,$previously_used);
393: }
394: return '';
395: }
396:
397: sub gradestatus {
398: my ($id,$target) = @_;
399: my $showbutton = 1;
400: my $message = '';
401: my $latemessage = '';
402: my $trystr='';
403: my $button='';
404: my $previousmsg='';
405:
406: my $status = $Apache::inputtags::status['-1'];
407: &Apache::lonxml::debug("gradestatus has :$status:");
408: if ( $status ne 'CLOSED' ) {
409: my $award = $Apache::lonhomework::history{"resource.$id.award"};
410: my $solved = $Apache::lonhomework::history{"resource.$id.solved"};
411: my $previous = $Apache::lonhomework::history{"resource.$id.previous"};
412: &Apache::lonxml::debug("Found Award |$award|$solved|");
413: if ( $award ne '' ) {
414: &Apache::lonxml::debug('Getting message');
415: ($showbutton,$message,$previousmsg) =
416: &decideoutput($award,$solved,$previous,$target);
417: if ($target eq 'tex') {
418: $message=' '.$message.' ';
419: } else {
420: $message="<td bgcolor=\"#aaffaa\">$message</td>";
421: if ($previousmsg) {
422: $previousmsg="<td bgcolor=\"#ffaaaa\">$previousmsg</td>";
423: }
424: }
425: }
426: my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
427: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
428: &Apache::lonxml::debug("got maxtries of :$maxtries:");
429: if ( $tries eq '' ) { $tries = '0'; }
430: if ( $maxtries eq '' ) { $maxtries = '2'; }
431: if ( $maxtries eq 'con_lost' ) { $maxtries = '0'; }
432: if ( $showbutton ) {
433: if ($target eq 'tex') {
434: if ((not $ENV{'request.role'}=~m/^au\./) and (not $ENV{'request.role'}=~m/^ca\./)) {
435: $trystr = ' {\small \textit{Tries} '.$tries.'/'.$maxtries.'} ';
436: }
437: } else {
438: $trystr = "<td>Tries $tries/$maxtries</td>";
439: }
440: }
441: if ( $status eq 'SHOW_ANSWER' || $status eq 'CANNOT_ANSWER') {$showbutton = 0;}
442: if ( $showbutton ) {
443: if ($target ne 'tex') {
444: $button = '<br /><input type="submit" name="submit" value="Submit Answer" />';
445: }
446: }
447: if ($Apache::lonhomework::history{"resource.$id.afterduedate"}) {
448: #last submissions was after due date
449: if ($target eq 'tex') {
450: $latemessage=' The last submission was after the Due Date ';
451: } else {
452: $latemessage="<td bgcolor=\"#ffaaaa\">The last submission was after the Due Date</td>";
453: }
454: }
455: }
456: my $output= $previousmsg.$latemessage.$message.$trystr;
457: if ($output =~ /^\s*$/) {
458: return $button;
459: } else {
460: if ($target eq 'tex') {
461: return $button.' \vskip 0 mm '.$output.' ';
462: } else {
463: return $button.'<table><tr>'.$output.'</tr></table>';
464: }
465: }
466: }
467: 1;
468: __END__
469:
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