1: # The LearningOnline Network
2: # Simple Problem Parameter Setting "Editor"
3: #
4: # $Id: lonsimpleproblemedit.pm,v 1.11 2004/11/30 22:57:16 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:
29: package Apache::lonsimpleproblemedit;
30:
31: use strict;
32: use Apache::Constants qw(:common :http);
33: use Apache::loncommon;
34: use Apache::lonnet;
35: use Apache::lonlocal;
36:
37: my %qparms;
38: my $prefix;
39: my $qtype;
40:
41: sub evaloptionhash {
42: my $options=shift;
43: $options=~s/^\(\'//;
44: $options=~s/\'\)$//;
45: my %returnhash=();
46: foreach (split(/\'\,\'/,$options)) {
47: $returnhash{$_}=$_;
48: }
49: return %returnhash;
50: }
51:
52: sub rawrendering {
53: my ($symb)=@_;
54: my %data=('show_errors'=>'on',
55: 'devalidatecourseresdata'=>'on');
56: return &Apache::loncommon::get_student_view($symb,time,time,
57: $ENV{'request.course.id'},
58: 'web',\%data);
59: }
60:
61: sub questiontext {
62: my $text=$qparms{$prefix.'questiontext'};
63: my $qt=&mt('Question Text');
64: return (<<ENDQUESTION);
65: <table bgcolor="#dddd22" cellspacing="4" cellpadding="2">
66: <tr><td><b>$qt</b><br />
67: <textarea name="questiontext" cols="80" rows="8">$text</textarea>
68: </td></tr>
69: </table>
70: <br />
71: ENDQUESTION
72: }
73:
74: sub hint {
75: my $text=$qparms{$prefix.'hinttext'};
76: my $ht=&mt('Hint Text');
77: return (<<ENDHINT);
78: <table bgcolor="#accacc" cellspacing="4" cellpadding="2">
79: <tr><td><b>$ht</b><br />
80: <textarea name="hinttext" cols="80" rows="4">$text</textarea>
81: </td></tr>
82: </table>
83: <br />
84: ENDHINT
85: }
86:
87: sub foil {
88: my $number=shift;
89: my %values='';
90: if ($qtype eq 'radio') {
91: %values=('true' => 'True', 'false' => 'False');
92: } elsif ($qtype eq 'option') {
93: %values=&evaloptionhash($qparms{$prefix.'options'});
94: }
95: $values{'unused'}='Not shown, not used';
96: my $value=$qparms{$prefix.'value'.$number};
97: unless (defined($value)) { $value='unused'; }
98: unless ($values{$value}) { $value='unused'; }
99: my $position=$qparms{$prefix.'position'.$number};
100: my %positions=('random' => 'Random position',
101: 'top' => 'Show always at top position',
102: 'bottom' => 'Show always at bottom position');
103: unless (defined($position)) { $position='random'; }
104: unless ($positions{$position}) {
105: $position='random';
106: }
107: my $selectvalue=&Apache::loncommon::select_form
108: ($value,'value'.$number,%values);
109: my $selectposition=&Apache::loncommon::select_form
110: ($position,'position'.$number,%positions);
111: my $text=$qparms{$prefix.'text'.$number};
112: my %lt=&Apache::lonlocal::texthash('foil' => 'Foil',
113: 'value' => 'Value',
114: 'pos' => 'Position',
115: 'text' => 'Text');
116:
117: return (<<ENDFOIL);
118: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
119: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
120: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
121: <tr><td colspan="2">$lt{'text'}:<br />
122: <textarea name="text$number" cols="80" rows="4">$text</textarea>
123: </td></tr>
124: </table>
125: <br />
126: ENDFOIL
127: }
128:
129: sub handler {
130: my $r = shift;
131:
132: if ($r->header_only) {
133: &Apache::loncommon::content_type($r,'text/html');
134: $r->send_http_header;
135: return OK;
136: }
137:
138: # -------------------------------------------------------------------- Allowed?
139: unless (&Apache::lonnet::allowed('mdc',$ENV{'request.course.id'})) {
140: return HTTP_NOT_ACCEPTABLE;
141: }
142: # ----------------------------------------------------------------- Send header
143: &Apache::loncommon::content_type($r,'text/html');
144: $r->send_http_header;
145: # ----------------------------------------------------- Figure out where we are
146: my $uri=$r->uri;
147: $uri=~s/\/smpedit$//;
148: my $symb=&Apache::lonnet::symbread($uri);
149:
150: # ------------------------------------------------ Prefix for everything stored
151: $prefix=$ENV{'request.course.id'}.'.'.$symb.'.0.';
152: # ---------------------------------------------------------- Anything to store?
153:
154: if (($symb) && (defined($ENV{'form.questiontype'}))) {
155: my %storecontent=();
156: undef %storecontent;
157: if ($ENV{'form.questiontype'} eq 'option') {
158: my %curoptions=&evaloptionhash($ENV{'form.options'});
159: if ($ENV{'form.delopt'}) {
160: delete $curoptions{$ENV{'form.delopt'}};
161: }
162: if ($ENV{'form.newopt'}) {
163: $ENV{'form.newopt'}=~s/\'/\\\'/g;
164: $curoptions{$ENV{'form.newopt'}}=$ENV{'form.newopt'};
165: }
166: $ENV{'form.options'}="('".join("','",keys %curoptions)."')";
167: }
168: $ENV{'form.hiddenparts'}='!'.$ENV{'form.questiontype'};
169: foreach (keys %ENV) {
170: if ($_=~/^form\.(\w+)$/) {
171: my $parm=$1;
172: $storecontent{$prefix.$parm}=$ENV{'form.'.$parm};
173: $storecontent{$prefix.$parm}=~s/^\s+//s;
174: $storecontent{$prefix.$parm}=~s/\s+$//s;
175: }
176: }
177: my $reply=&Apache::lonnet::cput
178: ('resourcedata',\%storecontent,
179: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
180: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
181:
182: }
183: # ------------------------------------------------------------------- Read Data
184:
185: %qparms=&Apache::lonnet::dump('resourcedata',
186: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
187: $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
188: $ENV{'request.course.id'}.'.'.$symb);
189:
190: # ------------------------------------------------------------ Print the screen
191: $r->print(<<ENDDOCUMENT);
192: <html>
193: <head>
194: <title>The LearningOnline Network with CAPA</title>
195: ENDDOCUMENT
196: $r->print(&Apache::loncommon::bodytag('Simple Problem Editor'));
197: if ($symb) {
198: $r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
199: $r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
200: &rawrendering($symb).
201: '</td></tr></table><br />');
202: $r->print('<form method="post">');
203: # Question Type
204: my %questiontypes=('radio' =>
205: '1 out of N multiple choice (radio button)',
206: 'option' => 'Option response',
207: 'string' => 'Short string response',
208: 'essay' => 'Essay, open end');
209: $qtype=$qparms{$prefix.'questiontype'};
210: unless (defined($qtype)) { $qtype='radio'; }
211: unless ($questiontypes{$qtype}) { $qtype='radio'; }
212: $r->print('<b>'.&mt('Question Type').
213: ': '.&Apache::loncommon::select_form
214: ($qtype,'questiontype',%questiontypes).
215: '</b><br /><input type="submit" value="'.&mt('Store Changes').
216: '" /><p> </p>');
217: # Question Text
218: $r->print(&questiontext());
219: # Radio, Option ===
220: if (($qtype eq 'radio') || ($qtype eq 'option')) {
221: # Response
222: my $maxfoils=$qparms{$prefix.'maxfoils'};
223: unless (defined($maxfoils)) { $maxfoils=10; }
224: unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
225: if ($maxfoils<=0) { $maxfoils=10; }
226: my %randomizes=('yes' => 'Display foils in random order',
227: 'no' => 'Display foils in order given');
228: my $randomize=$qparms{$prefix.'randomize'};
229: unless (defined($randomize)) { $randomize='yes'; }
230: unless ($randomizes{$randomize}) { $randomize='yes'; }
231: $r->print(
232: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
233: '<tr><td>'.&mt('Max number of foils displayed').
234: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" /> '.
235: &Apache::loncommon::select_form
236: ($randomize,'randomize',%randomizes).
237: '</td></tr><tr><td bgcolor="#AAAAAA">');
238: # Option Response: Options
239: if ($qtype eq 'option') {
240: my $options=$qparms{$prefix.'options'};
241: unless (defined($options)) { $options="('true','false')"; }
242: my %optionshash=&evaloptionhash($options);
243: $r->print(
244: '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
245: '<tr><td><input type="hidden" name="options" value="'.
246: $options.'" />'.&mt('Add new option').': '.
247: '<input type="text" name="newopt" size="15" />'.
248: &mt('Delete an option').': '.
249: &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
250: '</td></tr><tr><td>');
251: }
252: # Foils
253: for (my $i=1;$i<=10;$i++) {
254: $r->print(&foil($i));
255: }
256: # End Options
257: if ($qtype eq 'option') {
258: $r->print('</td></tr></table>');
259: }
260:
261: # End Response
262: $r->print('</td></tr></table><br />');
263: # Hint
264: $r->print(&hint());
265: }
266: if ($qtype eq 'string') {
267: my %stringtypes=(
268: 'cs' => 'Case sensitive',
269: 'ci' => 'Case Insensitive',
270: 'mc' => 'Multiple Choice, Order of characters unchecked');
271: my $stringanswer=$qparms{$prefix.'stringanswer'};
272: unless (defined($stringanswer)) { $stringanswer=''; }
273: my $stringtype=$qparms{$prefix.'stringtype'};
274: unless (defined($stringtype)) { $stringtype='cs'; }
275: unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
276: $r->print(
277: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
278: '<tr><td>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" /> '.
279: &Apache::loncommon::select_form
280: ($stringtype,'stringtype',%stringtypes).
281: '</td></tr></table><br />');
282: # Hint
283: $r->print(&hint());
284: }
285: # Store Button
286: $r->print(
287: '<input type="submit" value="'.&mt('Store Changes').'" /></form>');
288: } else {
289: $r->print(&mt('Could not identify problem.'));
290: }
291: $r->print('</body></html>');
292: return OK;
293: }
294:
295: 1;
296: __END__
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