8fe81c50 |
1 | <?php |
2 | /*************************************************************************** |
3 | * Copyright (C) 2003-2007 Polytechnique.org * |
4 | * http://opensource.polytechnique.org/ * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the Free Software * |
18 | * Foundation, Inc., * |
19 | * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * |
20 | ***************************************************************************/ |
21 | |
5c6e38d7 |
22 | // {{{ class Survey : root of any survey, contains all questions |
23 | class Survey |
8fe81c50 |
24 | { |
5c6e38d7 |
25 | // {{{ static properties and functions, regarding survey modes and question types |
26 | const MODE_ALL = 0; |
27 | const MODE_XANON = 1; |
28 | const MODE_XIDENT = 2; |
29 | private static $longModes = array(self::MODE_ALL => "sondage ouvert à tout le monde, anonyme", |
30 | self::MODE_XANON => "sondage restreint aux polytechniciens, anonyme", |
31 | self::MODE_XIDENT => "sondage restreint aux polytechniciens, non anonyme"); |
32 | private static $shortModes = array(self::MODE_ALL => "tout le monde, anonyme", |
33 | self::MODE_XANON => "polytechniciens, anonyme", |
34 | self::MODE_XIDENT => "polytechniciens, non anonyme"); |
8fe81c50 |
35 | |
5c6e38d7 |
36 | public static function getModes($long = true) { |
37 | return ($long)? self::$longModes : self::$shortModes; |
8fe81c50 |
38 | } |
8fe81c50 |
39 | |
0f396347 |
40 | private static $types = array('text' => 'Texte court', |
41 | 'textarea' => 'Texte long', |
42 | 'num' => 'Numérique', |
43 | 'radio' => 'Choix multiples (une réponse)', |
44 | 'checkbox' => 'Choix multiples (plusieurs réponses)'); |
8fe81c50 |
45 | |
46 | public static function getTypes() |
47 | { |
48 | return self::$types; |
49 | } |
50 | |
51 | public static function isType($t) |
52 | { |
53 | return array_key_exists($t, self::$types); |
54 | } |
55 | // }}} |
56 | |
5c6e38d7 |
57 | // {{{ properties, constructor and basic methods |
8fe81c50 |
58 | private $id; |
5c6e38d7 |
59 | private $title; |
60 | private $description; |
61 | private $end; |
62 | private $mode; |
63 | private $promos; |
64 | private $valid; |
65 | private $questions; |
8fe81c50 |
66 | |
5c6e38d7 |
67 | public function __construct($args, $id = -1, $valid = false, $questions = null) |
8fe81c50 |
68 | { |
8fe81c50 |
69 | $this->update($args); |
5c6e38d7 |
70 | $this->id = $id; |
71 | $this->valid = $valid; |
72 | $this->questions = ($questions == null)? array() : $questions; |
8fe81c50 |
73 | } |
74 | |
5c6e38d7 |
75 | public function update($args) |
8fe81c50 |
76 | { |
5c6e38d7 |
77 | $this->title = $args['title']; |
78 | $this->description = $args['description']; |
0f396347 |
79 | $this->end = $args['end']; |
0b78af47 |
80 | $this->mode = (isset($args['mode']))? $args['mode'] : self::MODE_ALL; |
81 | if ($this->mode == self::MODE_ALL) { |
5c6e38d7 |
82 | $args['promos'] = ''; |
8fe81c50 |
83 | } |
5c6e38d7 |
84 | $this->promos = ($args['promos'] == '' || preg_match('#^(\d{4}-?|(\d{4})?-\d{4})(,(\d{4}-?|(\d{4})?-\d{4}))*$#', $args['promos']))? $args['promos'] : '#'; |
8fe81c50 |
85 | } |
86 | // }}} |
87 | |
5c6e38d7 |
88 | // {{{ functions to access general information |
89 | public function isMode($mode) |
8fe81c50 |
90 | { |
5c6e38d7 |
91 | return ($this->mode == $mode); |
8fe81c50 |
92 | } |
93 | |
5c6e38d7 |
94 | public function checkPromo($promo) |
8fe81c50 |
95 | { |
4b8c8634 |
96 | if ($this->promos == '') { |
97 | return true; |
98 | } |
fd0084aa |
99 | $promos = explode(',', $this->promos); |
5c6e38d7 |
100 | foreach ($promos as $p) { |
101 | if ((preg_match('#^\d{4}$#', $p) && $p == $promo) || |
102 | (preg_match('#^\d{4}-$#', $p) && intval(substr($p, 0, 4)) <= $promo) || |
103 | (preg_match('#^-\d{4}$#', $p) && intval(substr($p, 1)) >= $promo) || |
104 | (preg_match('#^\d{4}-\d{4}$#', $p) && intval(substr($p, 0, 4)) <= $promo && intval(substr($p, 5)) >= $promo)) { |
105 | return true; |
106 | } |
8fe81c50 |
107 | } |
5c6e38d7 |
108 | return false; |
8fe81c50 |
109 | } |
110 | |
5c6e38d7 |
111 | public function isValid() |
8fe81c50 |
112 | { |
5c6e38d7 |
113 | return $this->valid; |
8fe81c50 |
114 | } |
115 | |
5c6e38d7 |
116 | public function isEnded() |
8fe81c50 |
117 | { |
5c6e38d7 |
118 | return (strtotime($this->end) - time() <= 0); |
8fe81c50 |
119 | } |
8fe81c50 |
120 | |
5c6e38d7 |
121 | public function getTitle() |
8fe81c50 |
122 | { |
5c6e38d7 |
123 | return $this->title; |
8fe81c50 |
124 | } |
125 | // }}} |
126 | |
9f01f40b |
127 | // {{{ function toArray() : converts a question (or the whole survey) to array, with results if the survey is ended |
5c6e38d7 |
128 | public function toArray($i = 'all') |
8fe81c50 |
129 | { |
9f01f40b |
130 | if ($i != 'all' && $i != 'root') { // if a specific question is requested, then just returns this question converted to array |
5c6e38d7 |
131 | $i = intval($i); |
132 | if (array_key_exists($i, $this->questions)) { |
133 | return $this->questions[$i]->toArray(); |
8fe81c50 |
134 | } else { |
5c6e38d7 |
135 | return null; |
8fe81c50 |
136 | } |
9f01f40b |
137 | } else { // else returns the root converted to array in any case |
5c6e38d7 |
138 | $a = array('title' => $this->title, |
139 | 'description' => $this->description, |
140 | 'end' => $this->end, |
141 | 'mode' => $this->mode, |
142 | 'promos' => $this->promos, |
143 | 'valid' => $this->valid, |
144 | 'type' => 'root'); |
145 | if ($this->id != -1) { |
146 | $a['id'] = $this->id; |
147 | } |
9f01f40b |
148 | if ($this->isEnded()) { // if the survey is ended, then adds here the number of votes |
149 | $sql = 'SELECT COUNT(id) |
150 | FROM survey_votes |
151 | WHERE survey_id={?};'; |
152 | $tot = XDB::query($sql, $this->id); |
153 | $a['votes'] = $tot->fetchOneCell(); |
154 | } |
155 | if ($i == 'all' && count($this->questions) > 0) { // if the whole survey is requested, then returns all the questions converted to array |
5c6e38d7 |
156 | $qArr = array(); |
157 | for ($k = 0; $k < count($this->questions); $k++) { |
158 | $q = $this->questions[$k]->toArray(); |
159 | $q['id'] = $k; |
9f01f40b |
160 | if ($this->isEnded()) { // if the survey is ended, then adds here the results of this question |
161 | $sql = $this->questions[$k]->buildResultRequest(); |
162 | if ($sql != '') { |
163 | $q['result'] = XDB::iterator($sql, $this->id, $k); |
164 | } |
165 | } |
5c6e38d7 |
166 | $qArr[$k] = $q; |
8fe81c50 |
167 | } |
5c6e38d7 |
168 | $a['questions'] = $qArr; |
8fe81c50 |
169 | } |
5c6e38d7 |
170 | return $a; |
8fe81c50 |
171 | } |
172 | } |
5c6e38d7 |
173 | // }}} |
8fe81c50 |
174 | |
4b8c8634 |
175 | // {{{ function toCSV() : builds a CSV file containing all the results of the survey |
176 | public function toCSV($sep = ',', $enc = '"', $asep='|') |
177 | { |
178 | $nbq = count($this->questions); |
179 | //require_once dirname(__FILE__) . '/../../classes/varstream.php'; |
180 | VarStream::init(); |
181 | global $csv_output; |
182 | $csv_output = ''; |
183 | $csv = fopen('var://csv_output', 'w'); |
184 | $line = ($this->isMode(self::MODE_XIDENT))? array('id', 'Nom', 'Prenom', 'Promo') : array('id'); |
185 | for ($qid = 0; $qid < $nbq; $qid++) { |
186 | $line[] = $this->questions[$qid]->getCSVColumn(); // the fist line contains the questions |
187 | } |
188 | $users = array(); |
189 | if ($this->isMode(self::MODE_XIDENT)) { // if the mode is non anonymous |
190 | $sql = 'SELECT v.id AS vid, a.nom, a.prenom, a.promo |
191 | FROM survey_votes AS v |
192 | INNER JOIN auth_user_md5 AS a |
193 | ON a.user_id=v.user_id |
194 | WHERE v.survey_id={?} |
195 | ORDER BY vid ASC;'; |
196 | $res = XDB::iterator($sql, $this->id); // retrieves all users data |
197 | for ($u = $res->next(); $u != null; $u = $res->next()) { |
198 | $users[$u['vid']] = array('nom' => $u['nom'], 'prenom' => $u['prenom'], 'promo' => $u['promo']); |
199 | } |
200 | } |
201 | $sql = 'SELECT v.id AS vid, a.question_id AS qid, a.answer |
202 | FROM survey_votes AS v |
203 | LEFT JOIN survey_answers AS a |
204 | ON a.vote_id=v.id |
205 | WHERE v.survey_id={?} |
206 | ORDER BY vid ASC, qid ASC;'; |
207 | $res = XDB::iterator($sql, $this->id); // retrieves all answers from database |
208 | $cur = $res->next(); |
209 | $vid = -1; |
210 | $vid_ = 0; |
211 | $first = ($this->isMode(self::MODE_XIDENT))? 4 : 1; |
212 | while ($cur != null) { |
213 | if ($vid != $cur['vid']) { // if the vote id changes, then starts a new line |
214 | fputcsv($csv, $line, $sep, $enc); // stores the former line into $csv_output |
215 | $vid = $cur['vid']; |
216 | $line = array_fill(0, $first + $nbq, ''); // creates an array full of empty string |
217 | $line[0] = $vid_; // the first field is a 'clean' vote id (not the one stored in database) |
218 | if ($this->isMode(self::MODE_XIDENT)) { // if the mode is non anonymous |
219 | if (array_key_exists($vid, $users) && is_array($users[$vid])) { // and if the user data can be found |
220 | $line[1] = $users[$vid]['nom']; // adds the user data (in the first fields of the line) |
221 | $line[2] = $users[$vid]['prenom']; |
222 | $line[3] = $users[$vid]['promo']; |
223 | } |
224 | } |
225 | $vid_++; |
226 | } |
227 | $fid = $first + $cur['qid']; // computes the field id |
228 | if ($line[$fid] != '') { // if this field already contains something |
229 | $line[$fid] .= $asep; // then adds a separator before adding the new answer |
230 | } |
231 | $line[$fid] .= $cur['answer']; // adds the current answer to the correct field |
232 | $cur = $res->next(); // gets next answer |
233 | } |
234 | fputcsv($csv, $line, $sep, $enc); // stores the last line into $csv_output |
235 | return $csv_output; |
236 | } |
237 | // }}} |
238 | |
5c6e38d7 |
239 | // {{{ function factory($type, $args) : builds a question according to the given type |
240 | public function factory($t, $args) |
8fe81c50 |
241 | { |
5c6e38d7 |
242 | switch ($t) { |
243 | case 'text': |
244 | return new SurveyText($args); |
245 | case 'textarea': |
246 | return new SurveyTextarea($args); |
247 | case 'num': |
248 | return new SurveyNum($args); |
249 | case 'radio': |
250 | return new SurveyRadio($args); |
251 | case 'checkbox': |
252 | return new SurveyCheckbox($args); |
253 | case 'personal': |
254 | return new SurveyPersonal($args); |
255 | default: |
256 | return null; |
8fe81c50 |
257 | } |
5c6e38d7 |
258 | } |
259 | // }}} |
260 | |
261 | // {{{ questions manipulation functions |
262 | public function addQuestion($i, $c) |
263 | { |
cd129064 |
264 | $i = intval($i); |
5c6e38d7 |
265 | if ($this->valid || $i > count($this->questions)) { |
266 | return false; |
267 | } else { |
268 | array_splice($this->questions, $i, 0, array($c)); |
8fe81c50 |
269 | return true; |
270 | } |
8fe81c50 |
271 | } |
272 | |
5c6e38d7 |
273 | public function delQuestion($i) |
8fe81c50 |
274 | { |
cd129064 |
275 | $i = intval($i); |
5c6e38d7 |
276 | if ($this->valid || !array_key_exists($i, $this->questions)) { |
277 | return false; |
278 | } else { |
279 | array_splice($this->questions, $i, 1); |
8fe81c50 |
280 | return true; |
281 | } |
8fe81c50 |
282 | } |
8fe81c50 |
283 | |
5c6e38d7 |
284 | public function editQuestion($i, $a) |
8fe81c50 |
285 | { |
5c6e38d7 |
286 | if ($i == 'root') { |
8fe81c50 |
287 | $this->update($a); |
8fe81c50 |
288 | } else { |
5c6e38d7 |
289 | $i = intval($i); |
290 | if ($this->valid ||!array_key_exists($i, $this->questions)) { |
291 | return false; |
292 | } else { |
293 | $this->questions[$i]->update($a); |
8fe81c50 |
294 | } |
8fe81c50 |
295 | } |
5c6e38d7 |
296 | return true; |
8fe81c50 |
297 | } |
298 | // }}} |
299 | |
5c6e38d7 |
300 | // {{{ function checkSyntax() : checks syntax of the questions (currently the root only) before storing the survey in database |
301 | private static $errorMessages = array( |
5c6e38d7 |
302 | "datepassed" => "la date de fin de sondage est déjà dépassée : vous devez préciser une date future", |
303 | "promoformat" => "les restrictions à certaines promotions sont mal formattées" |
304 | ); |
305 | |
306 | public function checkSyntax() |
8fe81c50 |
307 | { |
5c6e38d7 |
308 | $rArr = array(); |
0f396347 |
309 | // checks that the end date given is not already passed |
310 | // (unless the survey has already been validated : an admin can have a validated survey expired) |
311 | if (!$this->valid && $this->isEnded()) { |
312 | $rArr[] = array('question' => 'root', 'error' => self::$errorMessages["datepassed"]); |
5c6e38d7 |
313 | } |
314 | if ($this->promos != '' && !preg_match('#^(\d{4}-?|(\d{4})?-\d{4})(,(\d{4}-?|(\d{4})?-\d{4}))*$#', $this->promos)) { |
315 | $rArr[] = array('question' => 'root', 'error' => self::$errorMessages["promoformat"]); |
8fe81c50 |
316 | } |
5c6e38d7 |
317 | return (empty($rArr))? null : $rArr; |
8fe81c50 |
318 | } |
5c6e38d7 |
319 | // }}} |
8fe81c50 |
320 | |
9f01f40b |
321 | // {{{ functions that manipulate surveys in database |
5c6e38d7 |
322 | // {{{ static function retrieveList() : gets the list of available survey (current, old and not validated surveys) |
323 | public static function retrieveList($type, $tpl = true) |
8fe81c50 |
324 | { |
5c6e38d7 |
325 | switch ($type) { |
326 | case 'w': |
327 | case 'waiting' : |
328 | $where = 'valid=0'; |
329 | break; |
330 | case 'c': |
331 | case 'current': |
332 | $where = 'valid=1 AND end > NOW()'; |
333 | break; |
334 | case 'o': |
335 | case 'old': |
336 | $where = 'valid=1 AND end <= NOW()'; |
337 | break; |
338 | default: |
8fe81c50 |
339 | return null; |
340 | } |
5c6e38d7 |
341 | $sql = 'SELECT id, title, end, mode |
342 | FROM survey_surveys |
343 | WHERE '.$where.';'; |
344 | if ($tpl) { |
345 | return XDB::iterator($sql); |
346 | } else { |
347 | return XDB::iterRow($sql); |
348 | } |
8fe81c50 |
349 | } |
350 | // }}} |
351 | |
5c6e38d7 |
352 | // {{{ static function retrieveSurvey() : gets a survey in database (and unserialize the survey object structure) |
353 | public static function retrieveSurvey($sid) |
8fe81c50 |
354 | { |
5c6e38d7 |
355 | $sql = 'SELECT questions, title, description, end, mode, promos, valid |
356 | FROM survey_surveys |
357 | WHERE id={?}'; |
358 | $res = XDB::query($sql, $sid); |
359 | $data = $res->fetchOneAssoc(); |
360 | if (is_null($data) || !is_array($data)) { |
361 | return null; |
8fe81c50 |
362 | } |
5c6e38d7 |
363 | $survey = new Survey($data, $sid, (boolean) $data['valid'], unserialize($data['questions'])); |
364 | return $survey; |
8fe81c50 |
365 | } |
366 | // }}} |
367 | |
5c6e38d7 |
368 | // {{{ static function retrieveSurveyInfo() : gets information about a survey (title, description, end date, restrictions) but does not unserialize the survey object structure |
369 | public static function retrieveSurveyInfo($sid) |
8fe81c50 |
370 | { |
5c6e38d7 |
371 | $sql = 'SELECT title, description, end, mode, promos, valid |
372 | FROM survey_surveys |
373 | WHERE id={?}'; |
374 | $res = XDB::query($sql, $sid); |
375 | return $res->fetchOneAssoc(); |
8fe81c50 |
376 | } |
377 | // }}} |
8fe81c50 |
378 | |
5c6e38d7 |
379 | // {{{ function proposeSurvey() : stores a proposition of survey in database (before validation) |
380 | public function proposeSurvey() |
8fe81c50 |
381 | { |
5c6e38d7 |
382 | $sql = 'INSERT INTO survey_surveys |
383 | SET questions={?}, |
384 | title={?}, |
385 | description={?}, |
386 | author_id={?}, |
387 | end={?}, |
388 | mode={?}, |
389 | promos={?}, |
390 | valid=0;'; |
391 | return XDB::execute($sql, serialize($this->questions), $this->title, $this->description, S::v('uid'), $this->end, $this->mode, $this->promos); |
8fe81c50 |
392 | } |
5c6e38d7 |
393 | // }}} |
8fe81c50 |
394 | |
5c6e38d7 |
395 | // {{{ function updateSurvey() : updates a survey in database (before validation) |
396 | public function updateSurvey() |
8fe81c50 |
397 | { |
5c6e38d7 |
398 | if ($this->id == -1) { |
399 | return false; |
8fe81c50 |
400 | } |
5c6e38d7 |
401 | $sql = 'UPDATE survey_surveys |
402 | SET questions={?}, |
403 | title={?}, |
404 | description={?}, |
405 | end={?}, |
406 | mode={?}, |
407 | promos={?} |
408 | WHERE id={?};'; |
409 | return XDB::execute($sql, serialize($this->questions), $this->title, $this->description, $this->end, $this->mode, $this->promos, $this->id); |
8fe81c50 |
410 | } |
5c6e38d7 |
411 | // }}} |
8fe81c50 |
412 | |
5c6e38d7 |
413 | // {{{ static function validateSurvey() : validates a survey |
414 | public static function validateSurvey($sid) |
8fe81c50 |
415 | { |
5c6e38d7 |
416 | $sql = 'UPDATE survey_surveys |
417 | SET valid=1 |
418 | WHERE id={?};'; |
419 | return XDB::execute($sql, $sid); |
8fe81c50 |
420 | } |
5c6e38d7 |
421 | // }}} |
8fe81c50 |
422 | |
5c6e38d7 |
423 | // {{{ functions vote() and hasVoted() : handles vote to a survey |
424 | public function vote($uid, $args) |
425 | { |
426 | XDB::execute('INSERT INTO survey_votes |
427 | SET survey_id={?}, user_id={?};', $this->id, $uid); // notes the user as having voted |
428 | $vid = XDB::insertId(); |
429 | for ($i = 0; $i < count($this->questions); $i++) { |
430 | $ans = $this->questions[$i]->checkAnswer($args[$i]); |
9f01f40b |
431 | if (!is_null($ans) && is_array($ans)) { |
432 | foreach ($ans as $a) { |
433 | XDB::execute('INSERT INTO survey_answers |
434 | SET vote_id = {?}, |
435 | question_id = {?}, |
436 | answer = {?}', $vid, $i, $a); |
437 | } |
5c6e38d7 |
438 | } |
439 | } |
8fe81c50 |
440 | } |
441 | |
5c6e38d7 |
442 | public function hasVoted($uid) |
8fe81c50 |
443 | { |
5c6e38d7 |
444 | $res = XDB::query('SELECT id |
445 | FROM survey_votes |
446 | WHERE survey_id={?} AND user_id={?};', $this->id, $uid); // checks whether the user has already voted |
447 | return ($res->numRows() != 0); |
8fe81c50 |
448 | } |
5c6e38d7 |
449 | // }}} |
8fe81c50 |
450 | |
5c6e38d7 |
451 | // {{{ static function deleteSurvey() : deletes a survey (and all its votes) |
452 | public static function deleteSurvey($sid) |
8fe81c50 |
453 | { |
5c6e38d7 |
454 | $sql = 'DELETE s.*, v.*, a.* |
455 | FROM survey_surveys AS s |
456 | LEFT JOIN survey_votes AS v |
457 | ON v.survey_id=s.id |
458 | LEFT JOIN survey_answers AS a |
459 | ON a.vote_id=v.id |
460 | WHERE s.id={?};'; |
461 | return XDB::execute($sql, $sid); |
8fe81c50 |
462 | } |
463 | // }}} |
464 | |
5c6e38d7 |
465 | // {{{ static function purgeVotes() : clears all votes concerning a survey (I'm not sure whether it's really useful) |
466 | public static function purgeVotes($sid) |
8fe81c50 |
467 | { |
5c6e38d7 |
468 | $sql = 'DELETE v.*, a.* |
469 | FROM survey_votes AS v |
470 | LEFT JOIN survey_answers AS a |
471 | ON a.vote_id=v.id |
472 | WHERE v.survey_id={?};'; |
473 | return XDB::execute($sql, $sid); |
8fe81c50 |
474 | } |
475 | // }}} |
476 | |
5c6e38d7 |
477 | // }}} |
478 | } |
479 | // }}} |
8fe81c50 |
480 | |
5c6e38d7 |
481 | // {{{ abstract class SurveyQuestion |
482 | abstract class SurveyQuestion |
483 | { |
484 | // {{{ common properties, constructor, and basic methods |
485 | private $question; |
486 | private $comment; |
8fe81c50 |
487 | |
5c6e38d7 |
488 | public function __construct($args) |
8fe81c50 |
489 | { |
5c6e38d7 |
490 | $this->update($args); |
8fe81c50 |
491 | } |
492 | |
5c6e38d7 |
493 | public function update($a) |
8fe81c50 |
494 | { |
5c6e38d7 |
495 | $this->question = $a['question']; |
496 | $this->comment = $a['comment']; |
8fe81c50 |
497 | } |
498 | |
5c6e38d7 |
499 | abstract protected function getQuestionType(); |
500 | // }}} |
501 | |
502 | // {{{ function toArray() : converts to array |
8fe81c50 |
503 | public function toArray() |
504 | { |
5c6e38d7 |
505 | return array('type' => $this->getQuestionType(), 'question' => $this->question, 'comment' => $this->comment); |
8fe81c50 |
506 | } |
5c6e38d7 |
507 | // }}} |
8fe81c50 |
508 | |
5c6e38d7 |
509 | // {{{ function checkSyntax() : checks question elements (before storing into database), not currently needed (with new structure) |
510 | protected function checkSyntax() |
8fe81c50 |
511 | { |
5c6e38d7 |
512 | return null; |
8fe81c50 |
513 | } |
514 | // }}} |
515 | |
5c6e38d7 |
516 | // {{{ function checkAnswer : returns a correctly formatted answer (or nothing empty string if error) |
517 | public function checkAnswer($ans) |
8fe81c50 |
518 | { |
9f01f40b |
519 | return null; |
8fe81c50 |
520 | } |
521 | // }}} |
522 | |
4b8c8634 |
523 | // {{{ functions regarding the results of a survey |
9f01f40b |
524 | public function buildResultRequest() |
525 | { |
526 | return ''; |
527 | } |
4b8c8634 |
528 | |
529 | public function getCSVColumn() |
530 | { |
531 | return $this->question; |
532 | } |
8fe81c50 |
533 | // }}} |
534 | } |
535 | // }}} |
536 | |
fd0084aa |
537 | // {{{ abstract class SurveySimple and its derived classes : "open" questions |
9f01f40b |
538 | // {{{ abstract class SurveySimple extends SurveyQuestion |
8fe81c50 |
539 | abstract class SurveySimple extends SurveyQuestion |
540 | { |
5c6e38d7 |
541 | public function checkAnswer($ans) |
8fe81c50 |
542 | { |
9f01f40b |
543 | return array($ans); |
544 | } |
545 | |
546 | public function buildResultRequest() |
547 | { |
548 | $sql = 'SELECT answer |
549 | FROM survey_answers |
550 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) |
551 | AND question_id={?} |
552 | ORDER BY RAND() |
553 | LIMIT 5;'; |
554 | return $sql; |
8fe81c50 |
555 | } |
556 | } |
9f01f40b |
557 | // }}} |
8fe81c50 |
558 | |
559 | // {{{ class SurveyText extends SurveySimple : simple text field, allowing a few words |
560 | class SurveyText extends SurveySimple |
561 | { |
5c6e38d7 |
562 | public function getQuestionType() |
8fe81c50 |
563 | { |
564 | return "text"; |
565 | } |
566 | } |
567 | // }}} |
568 | |
569 | // {{{ class SurveyTextarea extends SurveySimple : textarea field, allowing longer comments |
570 | class SurveyTextarea extends SurveySimple |
571 | { |
5c6e38d7 |
572 | public function getQuestionType() |
8fe81c50 |
573 | { |
574 | return "textarea"; |
575 | } |
576 | } |
577 | // }}} |
578 | |
579 | // {{{ class SurveyNum extends SurveySimple : allows numerical answers |
580 | class SurveyNum extends SurveySimple |
581 | { |
5c6e38d7 |
582 | public function checkAnswer($ans) |
8fe81c50 |
583 | { |
9f01f40b |
584 | return array(intval($ans)); |
8fe81c50 |
585 | } |
586 | |
587 | protected function getQuestionType() |
588 | { |
589 | return "num"; |
590 | } |
591 | } |
592 | // }}} |
593 | // }}} |
594 | |
9f01f40b |
595 | // {{{ abstract class SurveyList and its derived classes : restricted questions that allows only a list of possible answers |
596 | // {{{ abstract class SurveyList extends SurveyQuestion |
5c6e38d7 |
597 | abstract class SurveyList extends SurveyQuestion |
8fe81c50 |
598 | { |
5c6e38d7 |
599 | protected $choices; |
8fe81c50 |
600 | |
5c6e38d7 |
601 | public function update($args) |
8fe81c50 |
602 | { |
603 | parent::update($args); |
0f396347 |
604 | $this->choices = array(); |
605 | foreach ($args['options'] as $val) { |
606 | if (trim($val)) { |
607 | $this->choices[] = $val; |
608 | } |
609 | } |
8fe81c50 |
610 | } |
611 | |
5c6e38d7 |
612 | public function toArray() |
8fe81c50 |
613 | { |
5c6e38d7 |
614 | $rArr = parent::toArray(); |
8fe81c50 |
615 | $rArr['choices'] = $this->choices; |
8fe81c50 |
616 | return $rArr; |
617 | } |
618 | |
9f01f40b |
619 | public function buildResultRequest() |
620 | { |
621 | $sql = 'SELECT answer, COUNT(id) AS count |
622 | FROM survey_answers |
623 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) |
624 | AND question_id={?} |
625 | GROUP BY answer ASC'; |
626 | return $sql; |
627 | } |
4b8c8634 |
628 | |
629 | public function getCSVColumn() |
630 | { |
631 | $r = parent::getCSVColumn(); |
632 | if (empty($this->choices)) { |
633 | return $r; |
634 | } |
635 | $r .= ' [0 => '.$this->choices[0]; |
636 | for ($k = 1; $k < count($this->choices); $k++) { |
637 | $r .= ', '.$k.' => '.$this->choices[$k]; |
638 | } |
639 | $r .= ']'; |
640 | return $r; |
641 | } |
8fe81c50 |
642 | } |
9f01f40b |
643 | // }}} |
8fe81c50 |
644 | |
645 | // {{{ class SurveyRadio extends SurveyList : radio question, allows one answer among the list offered |
646 | class SurveyRadio extends SurveyList |
647 | { |
5c6e38d7 |
648 | public function checkAnswer($ans) |
8fe81c50 |
649 | { |
9f01f40b |
650 | return (array_key_exists($ans, $this->choices))? array($ans) : null; |
8fe81c50 |
651 | } |
652 | |
653 | protected function getQuestionType() |
654 | { |
655 | return "radio"; |
656 | } |
657 | } |
658 | // }}} |
659 | |
660 | // {{{ class SurveyCheckbox extends SurveyList : checkbox question, allows any number of answers among the list offered |
661 | class SurveyCheckbox extends SurveyList |
662 | { |
5c6e38d7 |
663 | public function checkAnswer($ans) |
8fe81c50 |
664 | { |
9f01f40b |
665 | $rep = array(); |
5c6e38d7 |
666 | foreach ($ans as $a) { |
9f01f40b |
667 | $a = intval($a); |
668 | if (array_key_exists($a, $this->choices)) { |
669 | $rep[] = $a; |
8fe81c50 |
670 | } |
671 | } |
9f01f40b |
672 | return (count($rep) == 0)? null : $rep; |
8fe81c50 |
673 | } |
674 | |
675 | protected function getQuestionType() |
676 | { |
677 | return "checkbox"; |
678 | } |
679 | } |
680 | // }}} |
681 | // }}} |
682 | |
8fe81c50 |
683 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
684 | ?> |