1: # The LearningOnline Network
2: # Simple Problem Parameter Setting "Editor"
3: #
4: # $Id: lonsimpleproblemedit.pm,v 1.20 2009/02/01 20:40:28 raeburn 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 foil {
99: my $number=shift;
100: my %values='';
101: if ($qtype eq 'radio') {
102: %values=('true' => 'True', 'false' => 'False');
103: } elsif ($qtype eq 'option') {
104: %values=&evaloptionhash($qparms{$prefix.'options'});
105: }
106: $values{'unused'}='Not shown, not used';
107: my $value=$qparms{$prefix.'value'.$number};
108: unless (defined($value)) { $value='unused'; }
109: unless ($values{$value}) { $value='unused'; }
110: my $position=$qparms{$prefix.'position'.$number};
111: my %positions=('random' => 'Random position',
112: 'top' => 'Show always at top position',
113: 'bottom' => 'Show always at bottom position');
114: unless (defined($position)) { $position='random'; }
115: unless ($positions{$position}) {
116: $position='random';
117: }
118: my $selectvalue=&Apache::loncommon::select_form
119: ($value,'value'.$number,%values);
120: my $selectposition=&Apache::loncommon::select_form
121: ($position,'position'.$number,%positions);
122: my $text=$qparms{$prefix.'text'.$number};
123: my %lt=&Apache::lonlocal::texthash('foil' => 'Foil',
124: 'value' => 'Value',
125: 'pos' => 'Position',
126: 'text' => 'Text');
127:
128: my $spell_link=
129: &Apache::lonhtmlcommon::spelllink('simpleedit',"text$number");
130: return (<<ENDFOIL);
131: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
132: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
133: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
134: <tr><td colspan="2">$lt{'text'}:<br />
135: <textarea style="width:100%" name="text$number" cols="80" rows="4">$text</textarea>
136: <br />$spell_link
137: </td></tr>
138: </table>
139: <br />
140: ENDFOIL
141: }
142:
143: sub get_parent_uri {
144: my ($cur_symb)=@_;
145: my $navmap = Apache::lonnavmaps::navmap->new();
146: if (defined($navmap)) {
147: my $it = $navmap->getIterator(undef, undef, undef, 1);
148: while ( my $res=$it->next()) {
149: if (ref($res) && $res->symb() eq $cur_symb) { last; }
150: }
151: my ($src,$symb,$anchor)=&Apache::lonnavmaps::getLinkForResource($it->getStack());
152: if (defined($anchor)) { $anchor='#'.$anchor; }
153: return $src.'?symb='.&escape($symb).$anchor;
154: }
155: return;
156: }
157:
158: sub handler {
159: my $r = shift;
160:
161: if ($r->header_only) {
162: &Apache::loncommon::content_type($r,'text/html');
163: $r->send_http_header;
164: return OK;
165: }
166:
167: # -------------------------------------------------------------------- Allowed?
168: unless (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
169: return HTTP_NOT_ACCEPTABLE;
170: }
171: # ----------------------------------------------------------------- Send header
172: &Apache::loncommon::content_type($r,'text/html');
173: $r->send_http_header;
174: # ----------------------------------------------------- Figure out where we are
175: my $uri=$r->uri;
176: $uri=~s/\/smpedit$//;
177: my $symb=&Apache::lonnet::symbread();
178:
179: # ------------------------------------------------ Prefix for everything stored
180: $prefix=$env{'request.course.id'}.'.'.$symb.'.0.';
181: # ---------------------------------------------------------- Anything to store?
182:
183: if (($symb) && (defined($env{'form.questiontype'}))) {
184: my %storecontent=();
185: undef %storecontent;
186: if ($env{'form.questiontype'} eq 'option') {
187: my %curoptions=&evaloptionhash($env{'form.options'});
188: if ($env{'form.delopt'}) {
189: delete $curoptions{$env{'form.delopt'}};
190: }
191: if ($env{'form.newopt'}) {
192: $env{'form.newopt'}=~s/\'/\\\'/g;
193: $curoptions{$env{'form.newopt'}}=$env{'form.newopt'};
194: }
195: $env{'form.options'}="('".join("','",keys %curoptions)."')";
196: }
197: $env{'form.hiddenparts'}='!'.$env{'form.questiontype'};
198: foreach (keys %env) {
199: if ($_=~/^form\.(\w+)$/) {
200: my $parm=$1;
201: $storecontent{$prefix.$parm}=$env{'form.'.$parm};
202: $storecontent{$prefix.$parm}=~s/^\s+//s;
203: $storecontent{$prefix.$parm}=~s/\s+$//s;
204: }
205: }
206: my $reply=&Apache::lonnet::cput
207: ('resourcedata',\%storecontent,
208: $env{'course.'.$env{'request.course.id'}.'.domain'},
209: $env{'course.'.$env{'request.course.id'}.'.num'});
210:
211: }
212: # ------------------------------------------------------------------- Read Data
213:
214: %qparms=&Apache::lonnet::dump('resourcedata',
215: $env{'course.'.$env{'request.course.id'}.'.domain'},
216: $env{'course.'.$env{'request.course.id'}.'.num'},
217: $env{'request.course.id'}.'.'.$symb);
218:
219: # ------------------------------------------------------------ Print the screen
220: my $spell_header=&Apache::lonhtmlcommon::spellheader();
221: $r->print(&Apache::loncommon::start_page('Simple Problem Editor',
222: $spell_header));
223: if ($symb) {
224: $r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
225: $r->print('<table width="100%" bgcolor="#FFFFAA" border="2"><tr><td>');
226: my $displaylink = &get_parent_uri($symb);
227: if ($displaylink ne '') {
228: $r->print('<a href="'.$displaylink.'">'.&mt('Student View').'</a> - ');
229: } else {
230: $r->print('<span class="LC_error">'.&mt('An error occurred retrieving the link to this problem').'<br />'.&mt('You may need to [_1]re-select the course[_2] and then return to this resource to view it.','<a href="/adm/roles">','</a>').'</span><br />');
231: }
232: $r->print(&mt('Note: it can take up to 10 minutes for changes to take effect for all users.').
233: &Apache::loncommon::help_open_topic('Caching').'</td></tr></table>');
234: $r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
235: &rawrendering($symb).
236: '</td></tr></table><br />');
237: $r->print('<form name="simpleedit" method="POST">');
238: # Question Type
239: my %questiontypes=('radio' =>
240: '1 out of N multiple choice (radio button)',
241: 'option' => 'Option response',
242: 'string' => 'Short string response',
243: 'essay' => 'Essay, open end');
244: $qtype=$qparms{$prefix.'questiontype'};
245: unless (defined($qtype)) { $qtype='radio'; }
246: unless ($questiontypes{$qtype}) { $qtype='radio'; }
247: $r->print('<b>'.&mt('Question Type').
248: ': '.&Apache::loncommon::select_form
249: ($qtype,'questiontype',%questiontypes).
250: '</b><br /><input type="submit" value="'.&mt('Save and Edit').
251: '" /><p> </p>');
252: # Question Text
253: $r->print(&questiontext());
254: # Radio, Option ===
255: if (($qtype eq 'radio') || ($qtype eq 'option')) {
256: # Response
257: my $maxfoils=$qparms{$prefix.'maxfoils'};
258: unless (defined($maxfoils)) { $maxfoils=10; }
259: unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
260: if ($maxfoils<=0) { $maxfoils=10; }
261: my %randomizes=('yes' => 'Display foils in random order',
262: 'no' => 'Display foils in order given');
263: my $randomize=$qparms{$prefix.'randomize'};
264: unless (defined($randomize)) { $randomize='yes'; }
265: unless ($randomizes{$randomize}) { $randomize='yes'; }
266: $r->print(
267: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
268: '<tr><td>'.&mt('Max number of foils displayed').
269: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" /> '.
270: &Apache::loncommon::select_form
271: ($randomize,'randomize',%randomizes).
272: '</td></tr><tr><td bgcolor="#AAAAAA">');
273: # Option Response: Options
274: if ($qtype eq 'option') {
275: my $options=$qparms{$prefix.'options'};
276: unless (defined($options)) { $options="('true','false')"; }
277: my %optionshash=&evaloptionhash($options);
278: $r->print(
279: '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
280: '<tr><td><input type="hidden" name="options" value="'.
281: $options.'" />'.&mt('Add new option').': '.
282: '<input type="text" name="newopt" size="15" />'.
283: &mt('Delete an option').': '.
284: &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
285: '</td></tr><tr><td>');
286: }
287: # Foils
288: for (my $i=1;$i<=10;$i++) {
289: $r->print(&foil($i));
290: }
291: # End Options
292: if ($qtype eq 'option') {
293: $r->print('</td></tr></table>');
294: }
295:
296: # End Response
297: $r->print('</td></tr></table><br />');
298: # Hint
299: $r->print(&hint());
300: }
301: if ($qtype eq 'string') {
302: my %stringtypes=(
303: 'cs' => 'Case sensitive',
304: 'ci' => 'Case Insensitive',
305: 'mc' => 'Multiple Choice, Order of characters unchecked');
306: my $stringanswer=$qparms{$prefix.'stringanswer'};
307: unless (defined($stringanswer)) { $stringanswer=''; }
308: my $stringtype=$qparms{$prefix.'stringtype'};
309: unless (defined($stringtype)) { $stringtype='cs'; }
310: unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
311: $r->print(
312: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
313: '<tr><td>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" /> '.
314: &Apache::loncommon::select_form
315: ($stringtype,'stringtype',%stringtypes).
316: '</td></tr></table><br />');
317: # Hint
318: $r->print(&hint());
319: }
320: # Store Button
321: $r->print(
322: '<input type="submit" value="'.&mt('Save and Edit').'" /></form>');
323: } else {
324: $r->print(&mt('Could not identify problem.'));
325: }
326: $r->print(&Apache::loncommon::end_page());
327: return OK;
328: }
329:
330: 1;
331: __END__
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