1: # The LearningOnline Network
2: # Simple Problem Parameter Setting "Editor"
3: #
4: # $Id: lonsimpleproblemedit.pm,v 1.26 2009/09/24 00:50:03 truskell 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 $weightprefix;
44: my $qtype;
45:
46: sub evaloptionhash {
47: my $options=shift;
48: $options=~s/^\(\'//;
49: $options=~s/\'\)$//;
50: my %returnhash=();
51: foreach (split(/\'\,\'/,$options)) {
52: $returnhash{$_}=$_;
53: }
54: return %returnhash;
55: }
56:
57: sub rawrendering {
58: my ($symb)=@_;
59: my %data=('show_errors'=>'on',
60: 'simple_edit_button' => 'off',
61: 'devalidatecourseresdata'=>'on');
62: return &Apache::loncommon::get_student_view($symb,time,time,
63: $env{'request.course.id'},
64: 'web',\%data);
65: }
66:
67: sub questiontext {
68: my $text=$qparms{$prefix.'questiontext'};
69: my $qt=&mt('Question Text');
70: my $spell_link=
71: &Apache::lonhtmlcommon::spelllink('simpleedit','questiontext');
72: return (<<ENDQUESTION);
73: <table bgcolor="#dddd22" cellspacing="4" cellpadding="2" style="width:100%">
74: <tr><td><b>$qt</b><br />
75: <textarea style="width:100%" name="questiontext" cols="80" rows="8">$text</textarea>
76: <br />$spell_link
77: </td></tr>
78: </table>
79: <br />
80: ENDQUESTION
81: }
82:
83: sub hint {
84: my $text=$qparms{$prefix.'hinttext'};
85: my $ht=&mt('Hint Text');
86: my $spell_link=
87: &Apache::lonhtmlcommon::spelllink('simpleedit','hinttext');
88: return (<<ENDHINT);
89: <table bgcolor="#accacc" cellspacing="4" cellpadding="2">
90: <tr><td><b>$ht</b><br />
91: <textarea style="width:100%" name="hinttext" cols="80" rows="4">$text</textarea>
92: <br />$spell_link
93: </td></tr>
94: </table>
95: <br />
96: ENDHINT
97: }
98:
99: sub script {
100: my $text=$qparms{$prefix.'numericalscript'};
101: my $ht=&mt('Scripting (optional)');
102: return (<<ENDSCRIPT);
103: <table bgcolor="#ccccaa" cellspacing="4" cellpadding="2">
104: <tr><td><b>$ht</b><br />
105: <textarea style="width:100%" name="numericalscript" cols="80" rows="4">$text</textarea>
106: </td></tr>
107: </table>
108: <br />
109: ENDSCRIPT
110: }
111:
112: sub foil {
113: my $number=shift;
114: my %values='';
115: if ($qtype eq 'radio') {
116: %values=('true' => 'True', 'false' => 'False');
117: } elsif ($qtype eq 'option') {
118: %values=&evaloptionhash($qparms{$prefix.'options'});
119: }
120: $values{'unused'}='Not shown, not used';
121: my $value=$qparms{$prefix.'value'.$number};
122: unless (defined($value)) { $value='unused'; }
123: unless ($values{$value}) { $value='unused'; }
124: my $position=$qparms{$prefix.'position'.$number};
125: my %positions=('random' => 'Random position',
126: 'top' => 'Show always at top position',
127: 'bottom' => 'Show always at bottom position');
128: unless (defined($position)) { $position='random'; }
129: unless ($positions{$position}) {
130: $position='random';
131: }
132: my $selectvalue=&Apache::loncommon::select_form
133: ($value,'value'.$number,%values);
134: my $selectposition=&Apache::loncommon::select_form
135: ($position,'position'.$number,%positions);
136: my $text=$qparms{$prefix.'text'.$number};
137: my %lt=&Apache::lonlocal::texthash('foil' => 'Foil',
138: 'value' => 'Value',
139: 'pos' => 'Position',
140: 'text' => 'Text');
141:
142: my $spell_link=
143: &Apache::lonhtmlcommon::spelllink('simpleedit',"text$number");
144: return (<<ENDFOIL);
145: <table bgcolor="#dd55ff" cellspacing="4" cellpadding="2">
146: <tr><td colspan="2"><b>$lt{'foil'}</b></td></tr>
147: <tr><td>$lt{'value'}: $selectvalue</td><td>$lt{'pos'}: $selectposition</td></tr>
148: <tr><td colspan="2">$lt{'text'}:<br />
149: <textarea style="width:100%" name="text$number" cols="80" rows="4">$text</textarea>
150: <br />$spell_link
151: </td></tr>
152: </table>
153: <br />
154: ENDFOIL
155: }
156:
157: sub get_parent_uri {
158: my ($cur_symb)=@_;
159: my $navmap = Apache::lonnavmaps::navmap->new();
160: if (defined($navmap)) {
161: my $it = $navmap->getIterator(undef, undef, undef, 1);
162: while ( my $res=$it->next()) {
163: if (ref($res) && $res->symb() eq $cur_symb) { last; }
164: }
165: my ($src,$symb,$anchor)=&Apache::lonnavmaps::getLinkForResource($it->getStack());
166: if (defined($anchor)) { $anchor='#'.$anchor; }
167: return $src.'?symb='.&escape($symb).$anchor;
168: }
169: return;
170: }
171:
172: sub handler {
173: my $r = shift;
174:
175: if ($r->header_only) {
176: &Apache::loncommon::content_type($r,'text/html');
177: $r->send_http_header;
178: return OK;
179: }
180:
181: # -------------------------------------------------------------------- Allowed?
182: unless (&Apache::lonnet::allowed('mdc',$env{'request.course.id'})) {
183: return HTTP_NOT_ACCEPTABLE;
184: }
185: # ----------------------------------------------------------------- Send header
186: &Apache::loncommon::content_type($r,'text/html');
187: $r->send_http_header;
188: # ----------------------------------------------------- Figure out where we are
189: my $uri=$r->uri;
190: $uri=~s/\/smpedit$//;
191: my $symb=&Apache::lonnet::symbread();
192:
193: # ------------------------------------------------ Prefix for everything stored
194: $prefix=$env{'request.course.id'}.'.'.$symb.'.0.';
195: #------------------------------------------------- Prefix for storing weight of Problem Parts
196: $weightprefix=$env{'request.course.id'}.'.'.$symb.'.';
197:
198: # ---------------------------------------------------------- Anything to store?
199:
200: if (($symb) && (defined($env{'form.questiontype'}))) {
201: my %storecontent=();
202: undef %storecontent;
203: if ($env{'form.questiontype'} eq 'option') {
204: my %curoptions=&evaloptionhash($env{'form.options'});
205: if ($env{'form.delopt'}) {
206: delete $curoptions{$env{'form.delopt'}};
207: }
208: if ($env{'form.newopt'}) {
209: $env{'form.newopt'}=~s/\'/\\\'/g;
210: $curoptions{$env{'form.newopt'}}=$env{'form.newopt'};
211: }
212: $env{'form.options'}="('".join("','",keys %curoptions)."')";
213: }
214: $env{'form.hiddenparts'}='!'.$env{'form.questiontype'};
215: foreach (keys %env) {
216: if ($_=~/^form\.(\w+)$/) {
217: my $parm=$1;
218: $storecontent{$prefix.$parm}=$env{'form.'.$parm};
219: $storecontent{$prefix.$parm}=~s/^\s+//s;
220: $storecontent{$prefix.$parm}=~s/\s+$//s;
221: }
222: }
223: # ---------------------------------------------------- Set weights of hidden parts to zero
224: # ------------------------------------------------------ and used part to 1
225: $storecontent{$weightprefix.'essay.weight'}=0;
226: $storecontent{$weightprefix.'numerical.weight'}=0;
227: $storecontent{$weightprefix.'option.weight'}=0;
228: $storecontent{$weightprefix.'radio.weight'}=0;
229: $storecontent{$weightprefix.'string.weight'}=0;
230: $storecontent{$weightprefix.$env{'form.questiontype'}.'.weight'}=1;
231:
232:
233: my $reply=&Apache::lonnet::cput
234: ('resourcedata',\%storecontent,
235: $env{'course.'.$env{'request.course.id'}.'.domain'},
236: $env{'course.'.$env{'request.course.id'}.'.num'});
237:
238: &Apache::lonnet::devalidatecourseresdata(
239: $env{'course.'.$env{'request.course.id'}.'.num'},
240: $env{'course.'.$env{'request.course.id'}.'.domain'});
241:
242: }
243: # ------------------------------------------------------------------- Read Data
244:
245: %qparms=&Apache::lonnet::dump('resourcedata',
246: $env{'course.'.$env{'request.course.id'}.'.domain'},
247: $env{'course.'.$env{'request.course.id'}.'.num'},
248: $env{'request.course.id'}.'.'.$symb);
249:
250: # ------------------------------------------------------------ Print the screen
251: my $spell_header=&Apache::lonhtmlcommon::spellheader();
252: $r->print(&Apache::loncommon::start_page('Simple Problem Editor',
253: $spell_header));
254: if ($symb) {
255: $r->print('<h1>'.&Apache::lonnet::gettitle($symb).'</h1>');
256: my $displaylink = &get_parent_uri($symb);
257: if ($displaylink ne '') {
258: my $functions=&Apache::lonhtmlcommon::start_funclist()
259: .&Apache::lonhtmlcommon::add_item_funclist(
260: '<a href="'.$displaylink.'">'
261: .&mt('Student View').'</a>')
262: .&Apache::lonhtmlcommon::end_funclist();
263: $r->print(&Apache::loncommon::head_subbox($functions));
264: } else {
265: $r->print('<p class="LC_error">'
266: .&mt('An error occurred retrieving the link to this problem.')
267: .'<br />'
268: .&mt('You may need to [_1]re-select the course[_2] and then return to this resource to view it.'
269: ,'<a href="/adm/roles">','</a>')
270: .'</p>'
271: );
272: }
273: $r->print('<p class="LC_warning">'
274: .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
275: .&Apache::loncommon::help_open_topic('Caching')
276: .'</p>'
277: );
278:
279: $r->print('<table border="2" bgcolor="#FFFFFF" width="100%"><tr><td>'.
280: &rawrendering($symb).
281: '</td></tr></table><br />');
282: $r->print('<form name="simpleedit" method="post">');
283: # Question Type
284: my %questiontypes=('radio' =>
285: '1 out of N multiple choice (radio button)',
286: 'option' => 'Option response',
287: 'string' => 'Short string response',
288: 'essay' => 'Essay, open end',
289: 'numerical' => 'Numerical response');
290: $qtype=$qparms{$prefix.'questiontype'};
291: unless (defined($qtype)) { $qtype='radio'; }
292: unless ($questiontypes{$qtype}) { $qtype='radio'; }
293: $r->print('<b>'.&mt('Question Type').
294: ': '.&Apache::loncommon::select_form
295: ($qtype,'questiontype',%questiontypes).
296: '</b><br /><input type="submit" value="'.&mt('Save and Edit').
297: '" /><p> </p>');
298: # Script
299: if ($qtype eq 'numerical') {
300: $r->print(&script());
301: }
302: # Question Text
303: $r->print(&questiontext());
304: # Radio, Option ===
305: if (($qtype eq 'radio') || ($qtype eq 'option')) {
306: # Response
307: my $maxfoils=$qparms{$prefix.'maxfoils'};
308: unless (defined($maxfoils)) { $maxfoils=10; }
309: unless ($maxfoils=~/^\d+$/) { $maxfoils=10; }
310: if ($maxfoils<=0) { $maxfoils=10; }
311: my %randomizes=('yes' => 'Display foils in random order',
312: 'no' => 'Display foils in order given');
313: my $randomize=$qparms{$prefix.'randomize'};
314: unless (defined($randomize)) { $randomize='yes'; }
315: unless ($randomizes{$randomize}) { $randomize='yes'; }
316: $r->print(
317: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
318: '<tr><td>'.&mt('Max number of foils displayed').
319: ': <input type="text" size="3" name="maxfoils" value="'.$maxfoils.'" /> '.
320: &Apache::loncommon::select_form
321: ($randomize,'randomize',%randomizes).
322: '</td></tr><tr><td bgcolor="#AAAAAA">');
323: # Option Response: Options
324: if ($qtype eq 'option') {
325: my $options=$qparms{$prefix.'options'};
326: unless (defined($options)) { $options="('true','false')"; }
327: my %optionshash=&evaloptionhash($options);
328: $r->print(
329: '<table bgcolor="#ffcc22" cellspacing="4" cellpadding="2">'.
330: '<tr><td><input type="hidden" name="options" value="'.
331: $options.'" />'.&mt('Add new option').': '.
332: '<input type="text" name="newopt" size="15" />'.
333: &mt('Delete an option').': '.
334: &Apache::loncommon::select_form('','delopt',('' => '',%optionshash)).
335: '</td></tr><tr><td>');
336: }
337: # Foils
338: for (my $i=1;$i<=10;$i++) {
339: $r->print(&foil($i));
340: }
341: # End Options
342: if ($qtype eq 'option') {
343: $r->print('</td></tr></table>');
344: }
345:
346: # End Response
347: $r->print('</td></tr></table><br />');
348: # Hint
349: $r->print(&hint());
350: }
351: if ($qtype eq 'string') {
352: my %stringtypes=(
353: 'cs' => 'Case sensitive',
354: 'ci' => 'Case Insensitive',
355: 'mc' => 'Multiple Choice, Order of characters unchecked');
356: my $stringanswer=$qparms{$prefix.'stringanswer'};
357: unless (defined($stringanswer)) { $stringanswer=''; }
358: my $stringtype=$qparms{$prefix.'stringtype'};
359: unless (defined($stringtype)) { $stringtype='cs'; }
360: unless ($stringtypes{$stringtype}) { $stringtype='cs'; }
361: $r->print(
362: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
363: '<tr><td><label>'.&mt('Correct answer').': <input type="text" size="20" name="stringanswer" value="'.$stringanswer.'" /></label> '.
364: &Apache::loncommon::select_form
365: ($stringtype,'stringtype',%stringtypes).
366: '</td></tr></table><br />');
367: # Hint
368: $r->print(&hint());
369: }
370: if ($qtype eq 'numerical') {
371: my $numericalanswer=$qparms{$prefix.'numericalanswer'};
372: unless (defined($numericalanswer)) { $numericalanswer=''; }
373: my $numericaltolerance=$qparms{$prefix.'numericaltolerance'};
374: unless (defined($numericaltolerance)) { $numericaltolerance='5%'; }
375: my $numericalsigfigs=$qparms{$prefix.'numericalsigfigs'};
376: unless (defined($numericalsigfigs)) { $numericalsigfigs='1,15'; }
377:
378: $r->print(
379: '<table bgcolor="#00ee44" cellspacing="4" cellpadding="2">'.
380: '<tr><td><label>'.&mt('Correct answer').': <input type="text" size="20" name="numericalanswer" value="'.$numericalanswer.'" /></label> '.
381: '<label>'.&mt('Unit').': <input type="text" size="5" name="numericalunit" value="'.$qparms{$prefix.'numericalunit'}.'" /></label> '.
382: '<label>'.&mt('Format').': <input type="text" size="5" name="numericalformat" value="'.$qparms{$prefix.'numericalformat'}.'" /></label> '.
383: '<label>'.&mt('Tolerance').': <input type="text" size="5" name="numericaltolerance" value="'.$numericaltolerance.'" /></label> '.
384: '<label>'.&mt('Significant digits').': <input type="text" size="5" name="numericalsigfigs" value="'.$numericalsigfigs.'" /></label>'.
385: '</td></tr></table><br />');
386: $r->print(&hint());
387: }
388: # Store Button
389: $r->print(
390: '<input type="submit" value="'.&mt('Save and Edit').'" /></form>');
391: } else {
392: $r->print(&mt('Could not identify problem.'));
393: }
394: $r->print(&Apache::loncommon::end_page());
395: return OK;
396: }
397:
398: 1;
399: __END__
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