mirrored from git://git.moodle.org/moodle.git
-
Notifications
You must be signed in to change notification settings - Fork 6.6k
/
shortanswer.php
355 lines (322 loc) · 15.7 KB
/
shortanswer.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Short answer
*
* @package mod
* @subpackage lesson
* @copyright 2009 Sam Hemelryk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
**/
defined('MOODLE_INTERNAL') || die();
/** Short answer question type */
define("LESSON_PAGE_SHORTANSWER", "1");
class lesson_page_type_shortanswer extends lesson_page {
protected $type = lesson_page::TYPE_QUESTION;
protected $typeidstring = 'shortanswer';
protected $typeid = LESSON_PAGE_SHORTANSWER;
protected $string = null;
public function get_typeid() {
return $this->typeid;
}
public function get_typestring() {
if ($this->string===null) {
$this->string = get_string($this->typeidstring, 'lesson');
}
return $this->string;
}
public function get_idstring() {
return $this->typeidstring;
}
public function display($renderer, $attempt) {
global $USER, $CFG, $PAGE;
$mform = new lesson_display_answer_form_shortanswer($CFG->wwwroot.'/mod/lesson/continue.php', array('contents'=>$this->get_contents()));
$data = new stdClass;
$data->id = $PAGE->cm->id;
$data->pageid = $this->properties->id;
if (isset($USER->modattempts[$this->lesson->id])) {
$data->answer = s($attempt->useranswer);
}
$mform->set_data($data);
return $mform->display();
}
public function check_answer() {
global $CFG;
$result = parent::check_answer();
$mform = new lesson_display_answer_form_shortanswer($CFG->wwwroot.'/mod/lesson/continue.php', array('contents'=>$this->get_contents()));
$data = $mform->get_data();
require_sesskey();
$studentanswer = trim($data->answer);
if ($studentanswer === '') {
$result->noanswer = true;
return $result;
}
$i=0;
$answers = $this->get_answers();
foreach ($answers as $answer) {
$i++;
$expectedanswer = $answer->answer; // for easier handling of $answer->answer
$ismatch = false;
$markit = false;
$useregexp = ($this->qoption);
if ($useregexp) { //we are using 'normal analysis', which ignores case
$ignorecase = '';
if (substr($expectedanswer,0,-2) == '/i') {
$expectedanswer = substr($expectedanswer,0,-2);
$ignorecase = 'i';
}
} else {
$expectedanswer = str_replace('*', '#####', $expectedanswer);
$expectedanswer = preg_quote($expectedanswer, '/');
$expectedanswer = str_replace('#####', '.*', $expectedanswer);
}
// see if user typed in any of the correct answers
if ((!$this->lesson->custom && $this->lesson->jumpto_is_correct($this->properties->id, $answer->jumpto)) or ($this->lesson->custom && $answer->score > 0) ) {
if (!$useregexp) { // we are using 'normal analysis', which ignores case
if (preg_match('/^'.$expectedanswer.'$/i',$studentanswer)) {
$ismatch = true;
}
} else {
if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer)) {
$ismatch = true;
}
}
if ($ismatch == true) {
$result->correctanswer = true;
}
} else {
if (!$useregexp) { //we are using 'normal analysis'
// see if user typed in any of the wrong answers; don't worry about case
if (preg_match('/^'.$expectedanswer.'$/i',$studentanswer)) {
$ismatch = true;
}
} else { // we are using regular expressions analysis
$startcode = substr($expectedanswer,0,2);
switch ($startcode){
//1- check for absence of required string in $studentanswer (coded by initial '--')
case "--":
$expectedanswer = substr($expectedanswer,2);
if (!preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer)) {
$ismatch = true;
}
break;
//2- check for code for marking wrong strings (coded by initial '++')
case "++":
$expectedanswer=substr($expectedanswer,2);
$markit = true;
//check for one or several matches
if (preg_match_all('/'.$expectedanswer.'/'.$ignorecase,$studentanswer, $matches)) {
$ismatch = true;
$nb = count($matches[0]);
$original = array();
$marked = array();
$fontStart = '<span class="incorrect matches">';
$fontEnd = '</span>';
for ($i = 0; $i < $nb; $i++) {
array_push($original,$matches[0][$i]);
array_push($marked,$fontStart.$matches[0][$i].$fontEnd);
}
$studentanswer = str_replace($original, $marked, $studentanswer);
}
break;
//3- check for wrong answers belonging neither to -- nor to ++ categories
default:
if (preg_match('/^'.$expectedanswer.'$/'.$ignorecase,$studentanswer, $matches)) {
$ismatch = true;
}
break;
}
$result->correctanswer = false;
}
}
if ($ismatch) {
$result->newpageid = $answer->jumpto;
if (trim(strip_tags($answer->response))) {
$result->response = $answer->response;
}
$result->answerid = $answer->id;
break; // quit answer analysis immediately after a match has been found
}
}
$result->userresponse = $studentanswer;
//clean student answer as it goes to output.
$result->studentanswer = s($studentanswer);
return $result;
}
public function option_description_string() {
if ($this->properties->qoption) {
return " - ".get_string("casesensitive", "lesson");
}
return parent::option_description_string();
}
public function display_answers(html_table $table) {
$answers = $this->get_answers();
$options = new stdClass;
$options->noclean = true;
$options->para = false;
$i = 1;
foreach ($answers as $answer) {
$cells = array();
if ($this->lesson->custom && $answer->score > 0) {
// if the score is > 0, then it is correct
$cells[] = '<span class="labelcorrect">'.get_string("answer", "lesson")." $i</span>: \n";
} else if ($this->lesson->custom) {
$cells[] = '<span class="label">'.get_string("answer", "lesson")." $i</span>: \n";
} else if ($this->lesson->jumpto_is_correct($this->properties->id, $answer->jumpto)) {
// underline correct answers
$cells[] = '<span class="correct">'.get_string("answer", "lesson")." $i</span>: \n";
} else {
$cells[] = '<span class="labelcorrect">'.get_string("answer", "lesson")." $i</span>: \n";
}
$cells[] = format_text($answer->answer, $answer->answerformat, $options);
$table->data[] = new html_table_row($cells);
$cells = array();
$cells[] = "<span class=\"label\">".get_string("response", "lesson")." $i</span>";
$cells[] = format_text($answer->response, $answer->responseformat, $options);
$table->data[] = new html_table_row($cells);
$cells = array();
$cells[] = "<span class=\"label\">".get_string("score", "lesson").'</span>';
$cells[] = $answer->score;
$table->data[] = new html_table_row($cells);
$cells = array();
$cells[] = "<span class=\"label\">".get_string("jump", "lesson").'</span>';
$cells[] = $this->get_jump_name($answer->jumpto);
$table->data[] = new html_table_row($cells);
if ($i === 1){
$table->data[count($table->data)-1]->cells[0]->style = 'width:20%;';
}
$i++;
}
return $table;
}
public function stats(array &$pagestats, $tries) {
if(count($tries) > $this->lesson->maxattempts) { // if there are more tries than the max that is allowed, grab the last "legal" attempt
$temp = $tries[$this->lesson->maxattempts - 1];
} else {
// else, user attempted the question less than the max, so grab the last one
$temp = end($tries);
}
if (isset($pagestats[$temp->pageid][$temp->useranswer])) {
$pagestats[$temp->pageid][$temp->useranswer]++;
} else {
$pagestats[$temp->pageid][$temp->useranswer] = 1;
}
if (isset($pagestats[$temp->pageid]["total"])) {
$pagestats[$temp->pageid]["total"]++;
} else {
$pagestats[$temp->pageid]["total"] = 1;
}
return true;
}
public function report_answers($answerpage, $answerdata, $useranswer, $pagestats, &$i, &$n) {
$answers = $this->get_answers();
$formattextdefoptions = new stdClass;
$formattextdefoptions->para = false; //I'll use it widely in this page
foreach ($answers as $answer) {
if ($useranswer == null && $i == 0) {
// I have the $i == 0 because it is easier to blast through it all at once.
if (isset($pagestats[$this->properties->id])) {
$stats = $pagestats[$this->properties->id];
$total = $stats["total"];
unset($stats["total"]);
foreach ($stats as $valentered => $ntimes) {
$data = '<input type="text" size="50" disabled="disabled" readonly="readonly" value="'.s($valentered).'" />';
$percent = $ntimes / $total * 100;
$percent = round($percent, 2);
$percent .= "% ".get_string("enteredthis", "lesson");
$answerdata->answers[] = array($data, $percent);
}
} else {
$answerdata->answers[] = array(get_string("nooneansweredthisquestion", "lesson"), " ");
}
$i++;
} else if ($useranswer != null && ($answer->id == $useranswer->answerid || ($answer == end($answers) && empty($answerdata)))) {
// get in here when what the user entered is not one of the answers
$data = '<input type="text" size="50" disabled="disabled" readonly="readonly" value="'.s($useranswer->useranswer).'">';
if (isset($pagestats[$this->properties->id][$useranswer->useranswer])) {
$percent = $pagestats[$this->properties->id][$useranswer->useranswer] / $pagestats[$this->properties->id]["total"] * 100;
$percent = round($percent, 2);
$percent .= "% ".get_string("enteredthis", "lesson");
} else {
$percent = get_string("nooneenteredthis", "lesson");
}
$answerdata->answers[] = array($data, $percent);
if ($answer->id == $useranswer->answerid) {
if ($answer->response == NULL) {
if ($useranswer->correct) {
$answerdata->response = get_string("thatsthecorrectanswer", "lesson");
} else {
$answerdata->response = get_string("thatsthewronganswer", "lesson");
}
} else {
$answerdata->response = $answer->response;
}
if ($this->lesson->custom) {
$answerdata->score = get_string("pointsearned", "lesson").": ".$answer->score;
} elseif ($useranswer->correct) {
$answerdata->score = get_string("receivedcredit", "lesson");
} else {
$answerdata->score = get_string("didnotreceivecredit", "lesson");
}
} else {
$answerdata->response = get_string("thatsthewronganswer", "lesson");
if ($this->lesson->custom) {
$answerdata->score = get_string("pointsearned", "lesson").": 0";
} else {
$answerdata->score = get_string("didnotreceivecredit", "lesson");
}
}
}
$answerpage->answerdata = $answerdata;
}
return $answerpage;
}
}
class lesson_add_page_form_shortanswer extends lesson_add_page_form_base {
public $qtype = 'shortanswer';
public $qtypestring = 'shortanswer';
public function custom_definition() {
$this->_form->addElement('checkbox', 'qoption', get_string('options', 'lesson'), get_string('casesensitive', 'lesson')); //oh my, this is a regex option!
$this->_form->setDefault('qoption', 0);
$this->_form->addHelpButton('qoption', 'casesensitive', 'lesson');
for ($i = 0; $i < $this->_customdata['lesson']->maxanswers; $i++) {
$this->_form->addElement('header', 'answertitle'.$i, get_string('answer').' '.($i+1));
$this->add_answer($i);
$this->add_response($i);
$this->add_jumpto($i, NULL, ($i == 0 ? LESSON_NEXTPAGE : LESSON_THISPAGE));
$this->add_score($i, null, ($i===0)?1:0);
}
}
}
class lesson_display_answer_form_shortanswer extends moodleform {
public function definition() {
global $OUTPUT;
$mform = $this->_form;
$contents = $this->_customdata['contents'];
$mform->addElement('header', 'pageheader');
$mform->addElement('html', $OUTPUT->container($contents, 'contents'));
$options = new stdClass;
$options->para = false;
$options->noclean = true;
$mform->addElement('hidden', 'id');
$mform->setType('id', PARAM_INT);
$mform->addElement('hidden', 'pageid');
$mform->setType('pageid', PARAM_INT);
$mform->addElement('text', 'answer', get_string('youranswer', 'lesson'), array('size'=>'50', 'maxlength'=>'200'));
$mform->setType('answer', PARAM_TEXT);
$this->add_action_buttons(null, get_string("pleaseenteryouranswerinthebox", "lesson"));
}
}