1: # The LearningOnline Network
2: # Simple Problem Parameter Setting "Editor"
3: #
4: # $Id: lonsimpleproblemedit.pm,v 1.24 2009/08/17 18:18:35 www 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: use Apache::lonnavmaps;
37: use lib '/home/httpd/lib/perl/';
38: use LONCAPA;
39:
40:
41: my %qparms;
42: my $prefix;
43: my $qtype;
44:
45: sub evaloptionhash {
46: my $options=shift;
47: $options=~s/^\(\'//;
48: $options=~s/\'\)$//;
49: my %returnhash=();
50: foreach (split(/\'\,\'/,$options)) {
51: $returnhash{$_}=$_;
52: }
53: return %returnhash;
54: }
55:
56: sub rawrendering {
57: my ($symb)=@_;
58: my %data=('show_errors'=>'on',
59: 'simple_edit_button' => 'off',
60: 'devalidatecourseresdata'=>'on');
61: return &Apache::loncommon::get_student_view($symb,time,time,
62: $env{'request.course.id'},
63: 'web',\%data);
64: }
65:
66: sub questiontext {
67: my $text=$qparms{$prefix.'questiontext'};
68: my $qt=&mt('Question Text');
69: my $spell_link=
70: &Apache::lonhtmlcommon::spelllink('simpleedit','questiontext');
71: return (<<ENDQUESTION);
72: <table bgcolor="#dddd22" cellspacing="4" cellpadding="2" style="width:100%">
73: <tr><td><b>$qt</b><br />
74: <textarea style="width:100%" name="questiontext" cols="80" rows="8">$text</textarea>
75: <br />$spell_link
76: </td></tr>
77: </table>
78: <br />
79: ENDQUESTION
80: }
81:
82: sub hint {
83: my $text=$qparms{$prefix.'hinttext'};
84: my $ht=&mt('Hint Text');
85: my $spell_link=
86: &Apache::lonhtmlcommon::spelllink('simpleedit','hinttext');
87: return (<<ENDHINT);
88: <table bgcolor="#accacc" cellspacing="4" cellpadding="2">
89: <tr><td><b>$ht</b><br />
90: <textarea style="width:100%" name="hinttext" cols="80" rows="4">$text</textarea>
91: <br />$spell_link
92: </td></tr>
93: </table>
94: <br />
95: ENDHINT
96: }
97:
98: sub script {
99: my $text=$qparms{$prefix.'numericalscript'};
100: my $ht=&mt('Scripting (optional)');
101: return (<<ENDSCRIPT);
102: <table bgcolor="#ccccaa" cellspacing="4" cellpadding="2">
103: <tr><td><b>$ht</b><br />
104: <textarea style="width:100%" name="numericalscript" cols="80" rows="4">$text</textarea>
105: </td></tr>
106: </table>
107: <br />
108: ENDSCRIPT
109: }
110:
111: sub foil {
112: my $number=shift;
113: my %values='';
114: if ($qtype eq 'radio') {
115: %values=('true' => 'True', 'false' => 'False');
116: } elsif ($qtype eq 'option') {
117: %values=&evaloptionhash($qparms{$prefix.'options'});
118: }
119: $values{'unused'}='Not shown, not used';
120: my $value=$qparms{$prefix.'value'.$number};
121: unless (defined($value)) { $value='unused'; }
122: unless ($values{$value}) { $value='unused'; }
123: my $position=$qparms{$prefix.'position'.$number};
124: my %positions=('random' => 'Random position',
125: 'top' => 'Show always at top position',
126: 'bottom' => 'Show always at bottom position');
127: unless (defined($position)) { $position='random'; }
128: unless ($positions{$position}) {
129: $position='random';
130: }
131: my $selectvalue=&Apache::loncommon::select_form
132: ($value,'value'.$number,%values);
133: my $selectposition=&Apache::loncommon::select_form
134: ($position,'position'.$number,%positions);
135: my $text=$qparms{$prefix.'text'.$number};
136: my %lt=&Apache::lonlocal::texthash('foil' => 'Foil',
137: 'value' => 'Value',
138: 'pos' => 'Position',
139: 'text' => 'Text');
140:
141: my $spell_link=
142: &Apache::lonhtmlcommon::spelllink('simpleedit',"text$number");
143: return (<<ENDFOIL);
144: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
145: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
146: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
147: <tr><td colspan="2">$lt{'text'}:<br />
148: <textarea style="width:100%" name="text$number" cols="80" rows="4">$text</textarea>
149: <br />$spell_link
150: </td></tr>
151: </table>
152: <br />
153: ENDFOIL
154: }
155:
156: sub get_parent_uri {
157: my ($cur_symb)=@_;
158: my $navmap = Apache::lonnavmaps::navmap->new();
159: if (defined($navmap)) {
160: my $it = $navmap->getIterator(undef, undef, undef, 1);
161: while ( my $res=$it->next()) {
162: if (ref($res) && $res->symb() eq $cur_symb) { last; }
163: }
164: my ($src,$symb,$anchor)=&Apache::lonnavmaps::getLinkForResource($it->getStack());
165: if (defined($anchor)) { $anchor='#'.$anchor; }
166: return $src.'?symb='.&escape($symb).$anchor;
167: }
168: return;
169: }
170:
171: sub handler {
172: my $r = shift;
173:
174: if ($r->header_only) {
175: &Apache::loncommon::content_type($r,'text/html');
176: $r->send_http_header;
177: return OK;
178: }
179:
180: # -------------------------------------------------------------------- Allowed?
181: unless (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
182: return HTTP_NOT_ACCEPTABLE;
183: }
184: # ----------------------------------------------------------------- Send header
185: &Apache::loncommon::content_type($r,'text/html');
186: $r->send_http_header;
187: # ----------------------------------------------------- Figure out where we are
188: my $uri=$r->uri;
189: $uri=~s/\/smpedit$//;
190: my $symb=&Apache::lonnet::symbread();
191:
192: # ------------------------------------------------ Prefix for everything stored
193: $prefix=$env{'request.course.id'}.'.'.$symb.'.0.';
194: # ---------------------------------------------------------- Anything to store?
195:
196: if (($symb) && (defined($env{'form.questiontype'}))) {
197: my %storecontent=();
198: undef %storecontent;
199: if ($env{'form.questiontype'} eq 'option') {
200: my %curoptions=&evaloptionhash($env{'form.options'});
201: if ($env{'form.delopt'}) {
202: delete $curoptions{$env{'form.delopt'}};
203: }
204: if ($env{'form.newopt'}) {
205: $env{'form.newopt'}=~s/\'/\\\'/g;
206: $curoptions{$env{'form.newopt'}}=$env{'form.newopt'};
207: }
208: $env{'form.options'}="('".join("','",keys %curoptions)."')";
209: }
210: $env{'form.hiddenparts'}='!'.$env{'form.questiontype'};
211: foreach (keys %env) {
212: if ($_=~/^form\.(\w+)$/) {
213: my $parm=$1;
214: $storecontent{$prefix.$parm}=$env{'form.'.$parm};
215: $storecontent{$prefix.$parm}=~s/^\s+//s;
216: $storecontent{$prefix.$parm}=~s/\s+$//s;
217: }
218: }
219: my $reply=&Apache::lonnet::cput
220: ('resourcedata',\%storecontent,
221: $env{'course.'.$env{'request.course.id'}.'.domain'},
222: $env{'course.'.$env{'request.course.id'}.'.num'});
223:
224: }
225: # ------------------------------------------------------------------- Read Data
226:
227: %qparms=&Apache::lonnet::dump('resourcedata',
228: $env{'course.'.$env{'request.course.id'}.'.domain'},
229: $env{'course.'.$env{'request.course.id'}.'.num'},
230: $env{'request.course.id'}.'.'.$symb);
231:
232: # ------------------------------------------------------------ Print the screen
233: my $spell_header=&Apache::lonhtmlcommon::spellheader();
234: $r->print(&Apache::loncommon::start_page('Simple Problem Editor',
235: $spell_header));
236: if ($symb) {
237: $r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
238: my $displaylink = &get_parent_uri($symb);
239: if ($displaylink ne '') {
240: my $functions=&Apache::lonhtmlcommon::start_funclist()
241: .&Apache::lonhtmlcommon::add_item_funclist(
242: '<a href="'.$displaylink.'">'
243: .&mt('Student View').'</a>')
244: .&Apache::lonhtmlcommon::end_funclist();
245: $r->print(&Apache::loncommon::head_subbox($functions));
246: } else {
247: $r->print('<p class="LC_error">'
248: .&mt('An error occurred retrieving the link to this problem.')
249: .'<br />'
250: .&mt('You may need to [_1]re-select the course[_2] and then return to this resource to view it.'
251: ,'<a href="/adm/roles">','</a>')
252: .'</p>'
253: );
254: }
255: $r->print('<p class="LC_warning">'
256: .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
257: .&Apache::loncommon::help_open_topic('Caching')
258: .'</p>'
259: );
260:
261: $r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
262: &rawrendering($symb).
263: '</td></tr></table><br />');
264: $r->print('<form name="simpleedit" method="post">');
265: # Question Type
266: my %questiontypes=('radio' =>
267: '1 out of N multiple choice (radio button)',
268: 'option' => 'Option response',
269: 'string' => 'Short string response',
270: 'essay' => 'Essay, open end',
271: 'numerical' => 'Numerical response');
272: $qtype=$qparms{$prefix.'questiontype'};
273: unless (defined($qtype)) { $qtype='radio'; }
274: unless ($questiontypes{$qtype}) { $qtype='radio'; }
275: $r->print('<b>'.&mt('Question Type').
276: ': '.&Apache::loncommon::select_form
277: ($qtype,'questiontype',%questiontypes).
278: '</b><br /><input type="submit" value="'.&mt('Save and Edit').
279: '" /><p> </p>');
280: # Script
281: if ($qtype eq 'numerical') {
282: $r->print(&script());
283: }
284: # Question Text
285: $r->print(&questiontext());
286: # Radio, Option ===
287: if (($qtype eq 'radio') || ($qtype eq 'option')) {
288: # Response
289: my $maxfoils=$qparms{$prefix.'maxfoils'};
290: unless (defined($maxfoils)) { $maxfoils=10; }
291: unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
292: if ($maxfoils<=0) { $maxfoils=10; }
293: my %randomizes=('yes' => 'Display foils in random order',
294: 'no' => 'Display foils in order given');
295: my $randomize=$qparms{$prefix.'randomize'};
296: unless (defined($randomize)) { $randomize='yes'; }
297: unless ($randomizes{$randomize}) { $randomize='yes'; }
298: $r->print(
299: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
300: '<tr><td>'.&mt('Max number of foils displayed').
301: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" /> '.
302: &Apache::loncommon::select_form
303: ($randomize,'randomize',%randomizes).
304: '</td></tr><tr><td bgcolor="#AAAAAA">');
305: # Option Response: Options
306: if ($qtype eq 'option') {
307: my $options=$qparms{$prefix.'options'};
308: unless (defined($options)) { $options="('true','false')"; }
309: my %optionshash=&evaloptionhash($options);
310: $r->print(
311: '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
312: '<tr><td><input type="hidden" name="options" value="'.
313: $options.'" />'.&mt('Add new option').': '.
314: '<input type="text" name="newopt" size="15" />'.
315: &mt('Delete an option').': '.
316: &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
317: '</td></tr><tr><td>');
318: }
319: # Foils
320: for (my $i=1;$i<=10;$i++) {
321: $r->print(&foil($i));
322: }
323: # End Options
324: if ($qtype eq 'option') {
325: $r->print('</td></tr></table>');
326: }
327:
328: # End Response
329: $r->print('</td></tr></table><br />');
330: # Hint
331: $r->print(&hint());
332: }
333: if ($qtype eq 'string') {
334: my %stringtypes=(
335: 'cs' => 'Case sensitive',
336: 'ci' => 'Case Insensitive',
337: 'mc' => 'Multiple Choice, Order of characters unchecked');
338: my $stringanswer=$qparms{$prefix.'stringanswer'};
339: unless (defined($stringanswer)) { $stringanswer=''; }
340: my $stringtype=$qparms{$prefix.'stringtype'};
341: unless (defined($stringtype)) { $stringtype='cs'; }
342: unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
343: $r->print(
344: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
345: '<tr><td>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" /> '.
346: &Apache::loncommon::select_form
347: ($stringtype,'stringtype',%stringtypes).
348: '</td></tr></table><br />');
349: # Hint
350: $r->print(&hint());
351: }
352: if ($qtype eq 'numerical') {
353: my $numericalanswer=$qparms{$prefix.'numericalanswer'};
354: unless (defined($numericalanswer)) { $numericalanswer=''; }
355:
356: $r->print(
357: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
358: '<tr><td>'.&mt('Correct answer').': <input type="text" size="20" name="numericalanswer" value="'.$numericalanswer.'" />'.
359: '</td></tr></table><br />');
360: $r->print(&hint());
361: }
362: # Store Button
363: $r->print(
364: '<input type="submit" value="'.&mt('Save and Edit').'" /></form>');
365: } else {
366: $r->print(&mt('Could not identify problem.'));
367: }
368: $r->print(&Apache::loncommon::end_page());
369: return OK;
370: }
371:
372: 1;
373: __END__
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