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8fe81c50 | 1 | <?php |
2 | /*************************************************************************** | |
9f5bd98e | 3 | * Copyright (C) 2003-2010 Polytechnique.org * |
8fe81c50 | 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; | |
cd723c19 | 29 | private static $longModes = array(self::MODE_ALL => "sondage ouvert à tout le monde, anonyme", |
5c6e38d7 | 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 | |
02d94468 | 40 | private static $types = array('text' => 'Texte court', |
41 | 'textarea' => 'Texte long', | |
cd723c19 | 42 | 'num' => 'Numérique', |
43 | 'radio' => 'Choix multiples (une réponse)', | |
44 | 'checkbox' => 'Choix multiples (plusieurs réponses)', | |
45 | 'radiotable' => 'Questions multiples à choix multiples (une réponse)', | |
46 | 'checkboxtable' => 'Questions multiples à choix mutliples (plusieurs réponses)'); | |
8fe81c50 | 47 | |
48 | public static function getTypes() | |
49 | { | |
50 | return self::$types; | |
51 | } | |
52 | ||
53 | public static function isType($t) | |
54 | { | |
55 | return array_key_exists($t, self::$types); | |
56 | } | |
57 | // }}} | |
58 | ||
5c6e38d7 | 59 | // {{{ properties, constructor and basic methods |
8fe81c50 | 60 | private $id; |
5c6e38d7 | 61 | private $title; |
62 | private $description; | |
63 | private $end; | |
64 | private $mode; | |
65 | private $promos; | |
66 | private $valid; | |
67 | private $questions; | |
dd36cc0d | 68 | private $creator; |
8fe81c50 | 69 | |
5c6e38d7 | 70 | public function __construct($args, $id = -1, $valid = false, $questions = null) |
8fe81c50 | 71 | { |
8fe81c50 | 72 | $this->update($args); |
5c6e38d7 | 73 | $this->id = $id; |
74 | $this->valid = $valid; | |
75 | $this->questions = ($questions == null)? array() : $questions; | |
8fe81c50 | 76 | } |
77 | ||
5c6e38d7 | 78 | public function update($args) |
8fe81c50 | 79 | { |
5c6e38d7 | 80 | $this->title = $args['title']; |
81 | $this->description = $args['description']; | |
0f396347 | 82 | $this->end = $args['end']; |
dd36cc0d FB |
83 | $this->mode = (isset($args['mode']))? $args['mode'] : self::MODE_ALL; |
84 | $this->creator = $args['uid']; | |
0b78af47 | 85 | if ($this->mode == self::MODE_ALL) { |
5c6e38d7 | 86 | $args['promos'] = ''; |
8fe81c50 | 87 | } |
0dc8c5a4 | 88 | $args['promos'] = str_replace(' ', '', $args['promos']); |
5c6e38d7 | 89 | $this->promos = ($args['promos'] == '' || preg_match('#^(\d{4}-?|(\d{4})?-\d{4})(,(\d{4}-?|(\d{4})?-\d{4}))*$#', $args['promos']))? $args['promos'] : '#'; |
8fe81c50 | 90 | } |
dd36cc0d FB |
91 | |
92 | public function canSeeEarlyResults(User $user) | |
93 | { | |
94 | return $user->id() == $this->creator || $user->checkPerms('admin'); | |
95 | } | |
8fe81c50 | 96 | // }}} |
97 | ||
5c6e38d7 | 98 | // {{{ functions to access general information |
99 | public function isMode($mode) | |
8fe81c50 | 100 | { |
5c6e38d7 | 101 | return ($this->mode == $mode); |
8fe81c50 | 102 | } |
103 | ||
5c6e38d7 | 104 | public function checkPromo($promo) |
8fe81c50 | 105 | { |
4b8c8634 | 106 | if ($this->promos == '') { |
107 | return true; | |
108 | } | |
fd0084aa | 109 | $promos = explode(',', $this->promos); |
5c6e38d7 | 110 | foreach ($promos as $p) { |
111 | if ((preg_match('#^\d{4}$#', $p) && $p == $promo) || | |
112 | (preg_match('#^\d{4}-$#', $p) && intval(substr($p, 0, 4)) <= $promo) || | |
113 | (preg_match('#^-\d{4}$#', $p) && intval(substr($p, 1)) >= $promo) || | |
80bb82f6 PC |
114 | (preg_match('#^\d{4}-\d{4}$#', $p) && |
115 | (intval(substr($p, 0, 4)) <= $promo && intval(substr($p, 5)) >= $promo || | |
116 | intval(substr($p, 0, 4)) >= $promo && intval(substr($p, 5)) <= $promo ))) { | |
5c6e38d7 | 117 | return true; |
118 | } | |
8fe81c50 | 119 | } |
5c6e38d7 | 120 | return false; |
8fe81c50 | 121 | } |
122 | ||
5c6e38d7 | 123 | public function isValid() |
8fe81c50 | 124 | { |
5c6e38d7 | 125 | return $this->valid; |
8fe81c50 | 126 | } |
127 | ||
5c6e38d7 | 128 | public function isEnded() |
8fe81c50 | 129 | { |
5c6e38d7 | 130 | return (strtotime($this->end) - time() <= 0); |
8fe81c50 | 131 | } |
8fe81c50 | 132 | |
5c6e38d7 | 133 | public function getTitle() |
8fe81c50 | 134 | { |
5c6e38d7 | 135 | return $this->title; |
8fe81c50 | 136 | } |
137 | // }}} | |
138 | ||
9f01f40b | 139 | // {{{ function toArray() : converts a question (or the whole survey) to array, with results if the survey is ended |
5c6e38d7 | 140 | public function toArray($i = 'all') |
8fe81c50 | 141 | { |
9f01f40b | 142 | if ($i != 'all' && $i != 'root') { // if a specific question is requested, then just returns this question converted to array |
5c6e38d7 | 143 | $i = intval($i); |
144 | if (array_key_exists($i, $this->questions)) { | |
145 | return $this->questions[$i]->toArray(); | |
8fe81c50 | 146 | } else { |
5c6e38d7 | 147 | return null; |
8fe81c50 | 148 | } |
9f01f40b | 149 | } else { // else returns the root converted to array in any case |
5c6e38d7 | 150 | $a = array('title' => $this->title, |
151 | 'description' => $this->description, | |
152 | 'end' => $this->end, | |
153 | 'mode' => $this->mode, | |
154 | 'promos' => $this->promos, | |
155 | 'valid' => $this->valid, | |
156 | 'type' => 'root'); | |
157 | if ($this->id != -1) { | |
158 | $a['id'] = $this->id; | |
159 | } | |
9f01f40b | 160 | if ($this->isEnded()) { // if the survey is ended, then adds here the number of votes |
161 | $sql = 'SELECT COUNT(id) | |
162 | FROM survey_votes | |
163 | WHERE survey_id={?};'; | |
164 | $tot = XDB::query($sql, $this->id); | |
165 | $a['votes'] = $tot->fetchOneCell(); | |
166 | } | |
167 | if ($i == 'all' && count($this->questions) > 0) { // if the whole survey is requested, then returns all the questions converted to array | |
5c6e38d7 | 168 | $qArr = array(); |
169 | for ($k = 0; $k < count($this->questions); $k++) { | |
170 | $q = $this->questions[$k]->toArray(); | |
171 | $q['id'] = $k; | |
9f01f40b | 172 | if ($this->isEnded()) { // if the survey is ended, then adds here the results of this question |
02d94468 | 173 | $q['result'] = $this->questions[$k]->getResultArray($this->id, $k); |
9f01f40b | 174 | } |
5c6e38d7 | 175 | $qArr[$k] = $q; |
8fe81c50 | 176 | } |
5c6e38d7 | 177 | $a['questions'] = $qArr; |
8fe81c50 | 178 | } |
5c6e38d7 | 179 | return $a; |
8fe81c50 | 180 | } |
181 | } | |
5c6e38d7 | 182 | // }}} |
8fe81c50 | 183 | |
4b8c8634 | 184 | // {{{ function toCSV() : builds a CSV file containing all the results of the survey |
185 | public function toCSV($sep = ',', $enc = '"', $asep='|') | |
186 | { | |
187 | $nbq = count($this->questions); | |
188 | //require_once dirname(__FILE__) . '/../../classes/varstream.php'; | |
189 | VarStream::init(); | |
190 | global $csv_output; | |
191 | $csv_output = ''; | |
192 | $csv = fopen('var://csv_output', 'w'); | |
193 | $line = ($this->isMode(self::MODE_XIDENT))? array('id', 'Nom', 'Prenom', 'Promo') : array('id'); | |
8e9f416e | 194 | $qids = array(); |
4b8c8634 | 195 | for ($qid = 0; $qid < $nbq; $qid++) { |
8e9f416e | 196 | $qids[$qid] = count($line); // stores the first id of a question (in case of questions with subquestions) |
197 | array_splice($line, count($line), 0, $this->questions[$qid]->getCSVColumns()); // the first line contains the questions | |
4b8c8634 | 198 | } |
8e9f416e | 199 | $nbf = count($line); |
4b8c8634 | 200 | $users = array(); |
201 | if ($this->isMode(self::MODE_XIDENT)) { // if the mode is non anonymous | |
7f376ae0 | 202 | $users = User::getBulkUsersWithUIDs(XDB::fetchAllAssoc('vid', 'SELECT v.id AS vid, v.uid |
ee682285 FB |
203 | FROM survey_votes AS v |
204 | WHERE v.survey_id = {?} | |
205 | ORDER BY vid ASC', | |
206 | $this->id)); | |
4b8c8634 | 207 | } |
8e9f416e | 208 | $sql = 'SELECT v.id AS vid, a.question_id AS qid, a.answer AS answer |
4b8c8634 | 209 | FROM survey_votes AS v |
ee22a54b | 210 | INNER JOIN survey_answers AS a ON a.vote_id=v.id |
4b8c8634 | 211 | WHERE v.survey_id={?} |
ee22a54b | 212 | ORDER BY vid ASC, qid ASC, answer ASC'; |
4b8c8634 | 213 | $res = XDB::iterator($sql, $this->id); // retrieves all answers from database |
4b8c8634 | 214 | $vid = -1; |
215 | $vid_ = 0; | |
ee682285 | 216 | while (($cur = $res->next()) != null) { |
4b8c8634 | 217 | if ($vid != $cur['vid']) { // if the vote id changes, then starts a new line |
218 | fputcsv($csv, $line, $sep, $enc); // stores the former line into $csv_output | |
219 | $vid = $cur['vid']; | |
8e9f416e | 220 | $line = array_fill(0, $nbf, ''); // creates an array full of empty string |
4b8c8634 | 221 | $line[0] = $vid_; // the first field is a 'clean' vote id (not the one stored in database) |
222 | if ($this->isMode(self::MODE_XIDENT)) { // if the mode is non anonymous | |
ee682285 FB |
223 | if (array_key_exists($vid, $users)) { // and if the user data can be found |
224 | $line[1] = $users[$vid]->lastName(); // adds the user data (in the first fields of the line) | |
225 | $line[2] = $users[$vid]->firstName();; | |
226 | $line[3] = $users[$vid]->promo(); | |
4b8c8634 | 227 | } |
228 | } | |
229 | $vid_++; | |
230 | } | |
8e9f416e | 231 | $ans = $this->questions[$cur['qid']]->formatAnswer($cur['answer']); // formats the current answer |
232 | if (!is_null($ans)) { | |
233 | if (is_array($ans)) { | |
234 | $fid = $qids[$cur['qid']] + $ans['id']; // computes the field id | |
235 | $a = $ans['answer']; | |
236 | } else { | |
237 | $fid = $qids[$cur['qid']]; | |
238 | $a = $ans; | |
239 | } | |
240 | if ($line[$fid] != '') { // if this field already contains something | |
241 | $line[$fid] .= $asep; // then adds a separator before adding the new answer | |
242 | } | |
243 | $line[$fid] .= $a; // adds the current answer to the correct field | |
4b8c8634 | 244 | } |
4b8c8634 | 245 | } |
246 | fputcsv($csv, $line, $sep, $enc); // stores the last line into $csv_output | |
247 | return $csv_output; | |
248 | } | |
249 | // }}} | |
250 | ||
5c6e38d7 | 251 | // {{{ function factory($type, $args) : builds a question according to the given type |
252 | public function factory($t, $args) | |
8fe81c50 | 253 | { |
5c6e38d7 | 254 | switch ($t) { |
255 | case 'text': | |
256 | return new SurveyText($args); | |
257 | case 'textarea': | |
258 | return new SurveyTextarea($args); | |
259 | case 'num': | |
260 | return new SurveyNum($args); | |
261 | case 'radio': | |
262 | return new SurveyRadio($args); | |
263 | case 'checkbox': | |
264 | return new SurveyCheckbox($args); | |
02d94468 | 265 | case 'radiotable': |
266 | return new SurveyRadioTable($args); | |
267 | case 'checkboxtable': | |
268 | return new SurveyCheckboxTable($args); | |
5c6e38d7 | 269 | default: |
270 | return null; | |
8fe81c50 | 271 | } |
5c6e38d7 | 272 | } |
273 | // }}} | |
274 | ||
275 | // {{{ questions manipulation functions | |
276 | public function addQuestion($i, $c) | |
277 | { | |
cd129064 | 278 | $i = intval($i); |
5c6e38d7 | 279 | if ($this->valid || $i > count($this->questions)) { |
280 | return false; | |
281 | } else { | |
282 | array_splice($this->questions, $i, 0, array($c)); | |
8fe81c50 | 283 | return true; |
284 | } | |
8fe81c50 | 285 | } |
286 | ||
5c6e38d7 | 287 | public function delQuestion($i) |
8fe81c50 | 288 | { |
cd129064 | 289 | $i = intval($i); |
5c6e38d7 | 290 | if ($this->valid || !array_key_exists($i, $this->questions)) { |
291 | return false; | |
292 | } else { | |
293 | array_splice($this->questions, $i, 1); | |
8fe81c50 | 294 | return true; |
295 | } | |
8fe81c50 | 296 | } |
8fe81c50 | 297 | |
5c6e38d7 | 298 | public function editQuestion($i, $a) |
8fe81c50 | 299 | { |
5c6e38d7 | 300 | if ($i == 'root') { |
8fe81c50 | 301 | $this->update($a); |
8fe81c50 | 302 | } else { |
5c6e38d7 | 303 | $i = intval($i); |
304 | if ($this->valid ||!array_key_exists($i, $this->questions)) { | |
305 | return false; | |
306 | } else { | |
307 | $this->questions[$i]->update($a); | |
8fe81c50 | 308 | } |
8fe81c50 | 309 | } |
5c6e38d7 | 310 | return true; |
8fe81c50 | 311 | } |
312 | // }}} | |
313 | ||
5c6e38d7 | 314 | // {{{ function checkSyntax() : checks syntax of the questions (currently the root only) before storing the survey in database |
315 | private static $errorMessages = array( | |
cd723c19 | 316 | "datepassed" => "la date de fin de sondage est déjà dépassée : vous devez préciser une date future", |
317 | "promoformat" => "les restrictions à certaines promotions sont mal formattées" | |
5c6e38d7 | 318 | ); |
319 | ||
320 | public function checkSyntax() | |
8fe81c50 | 321 | { |
5c6e38d7 | 322 | $rArr = array(); |
0f396347 | 323 | // checks that the end date given is not already passed |
324 | // (unless the survey has already been validated : an admin can have a validated survey expired) | |
325 | if (!$this->valid && $this->isEnded()) { | |
326 | $rArr[] = array('question' => 'root', 'error' => self::$errorMessages["datepassed"]); | |
5c6e38d7 | 327 | } |
328 | if ($this->promos != '' && !preg_match('#^(\d{4}-?|(\d{4})?-\d{4})(,(\d{4}-?|(\d{4})?-\d{4}))*$#', $this->promos)) { | |
329 | $rArr[] = array('question' => 'root', 'error' => self::$errorMessages["promoformat"]); | |
8fe81c50 | 330 | } |
5c6e38d7 | 331 | return (empty($rArr))? null : $rArr; |
8fe81c50 | 332 | } |
5c6e38d7 | 333 | // }}} |
8fe81c50 | 334 | |
9f01f40b | 335 | // {{{ functions that manipulate surveys in database |
5c6e38d7 | 336 | // {{{ static function retrieveList() : gets the list of available survey (current, old and not validated surveys) |
337 | public static function retrieveList($type, $tpl = true) | |
8fe81c50 | 338 | { |
5c6e38d7 | 339 | switch ($type) { |
5c6e38d7 | 340 | case 'c': |
341 | case 'current': | |
797d27db | 342 | $where = 'end > NOW()'; |
5c6e38d7 | 343 | break; |
344 | case 'o': | |
345 | case 'old': | |
797d27db | 346 | $where = 'end <= NOW()'; |
5c6e38d7 | 347 | break; |
348 | default: | |
8fe81c50 | 349 | return null; |
350 | } | |
5c6e38d7 | 351 | $sql = 'SELECT id, title, end, mode |
06f4daf9 | 352 | FROM surveys |
8e9f416e | 353 | WHERE '.$where.' |
354 | ORDER BY end DESC;'; | |
5c6e38d7 | 355 | if ($tpl) { |
356 | return XDB::iterator($sql); | |
357 | } else { | |
358 | return XDB::iterRow($sql); | |
359 | } | |
8fe81c50 | 360 | } |
361 | // }}} | |
362 | ||
5c6e38d7 | 363 | // {{{ static function retrieveSurvey() : gets a survey in database (and unserialize the survey object structure) |
364 | public static function retrieveSurvey($sid) | |
8fe81c50 | 365 | { |
dd36cc0d | 366 | $sql = 'SELECT questions, title, description, end, mode, promos, uid |
06f4daf9 | 367 | FROM surveys |
5c6e38d7 | 368 | WHERE id={?}'; |
369 | $res = XDB::query($sql, $sid); | |
370 | $data = $res->fetchOneAssoc(); | |
371 | if (is_null($data) || !is_array($data)) { | |
372 | return null; | |
8fe81c50 | 373 | } |
797d27db | 374 | $survey = new Survey($data, $sid, true, unserialize($data['questions'])); |
5c6e38d7 | 375 | return $survey; |
8fe81c50 | 376 | } |
377 | // }}} | |
378 | ||
5c6e38d7 | 379 | // {{{ static function retrieveSurveyInfo() : gets information about a survey (title, description, end date, restrictions) but does not unserialize the survey object structure |
380 | public static function retrieveSurveyInfo($sid) | |
8fe81c50 | 381 | { |
797d27db | 382 | $sql = 'SELECT title, description, end, mode, promos |
06f4daf9 | 383 | FROM surveys |
5c6e38d7 | 384 | WHERE id={?}'; |
385 | $res = XDB::query($sql, $sid); | |
386 | return $res->fetchOneAssoc(); | |
8fe81c50 | 387 | } |
388 | // }}} | |
8fe81c50 | 389 | |
797d27db | 390 | // {{{ static function retrieveSurveyReq() : gets a survey request to validate |
391 | public static function retrieveSurveyReq($id) | |
392 | { | |
797d27db | 393 | $surveyreq = Validate::get_request_by_id($id); |
394 | if ($surveyreq == null) { | |
395 | return null; | |
396 | } | |
397 | $data = array('title' => $surveyreq->title, | |
398 | 'description' => $surveyreq->description, | |
399 | 'end' => $surveyreq->end, | |
400 | 'mode' => $surveyreq->mode, | |
401 | 'promos' => $surveyreq->promos); | |
402 | $survey = new Survey($data, $id, false, $surveyreq->questions); | |
403 | return $survey; | |
404 | } | |
405 | // }}} | |
406 | ||
5c6e38d7 | 407 | // {{{ function proposeSurvey() : stores a proposition of survey in database (before validation) |
408 | public function proposeSurvey() | |
8fe81c50 | 409 | { |
5daf68f6 | 410 | $surveyreq = new SurveyReq($this->title, $this->description, $this->end, $this->mode, $this->promos, $this->questions, S::user()); |
797d27db | 411 | return $surveyreq->submit(); |
8fe81c50 | 412 | } |
5c6e38d7 | 413 | // }}} |
8fe81c50 | 414 | |
5c6e38d7 | 415 | // {{{ function updateSurvey() : updates a survey in database (before validation) |
416 | public function updateSurvey() | |
8fe81c50 | 417 | { |
797d27db | 418 | if ($this->valid) { |
06f4daf9 | 419 | $sql = 'UPDATE surveys |
797d27db | 420 | SET questions={?}, |
421 | title={?}, | |
422 | description={?}, | |
423 | end={?}, | |
424 | mode={?}, | |
425 | promos={?} | |
426 | WHERE id={?};'; | |
427 | return XDB::execute($sql, serialize($this->questions), $this->title, $this->description, $this->end, $this->mode, $this->promos, $this->id); | |
428 | } else { | |
797d27db | 429 | $surveyreq = Validate::get_request_by_id($this->id); |
430 | if ($surveyreq == null) { | |
431 | return false; | |
432 | } | |
433 | return $surveyreq->updateReq($this->title, $this->description, $this->end, $this->mode, $this->promos, $this->questions); | |
8fe81c50 | 434 | } |
8fe81c50 | 435 | } |
5c6e38d7 | 436 | // }}} |
8fe81c50 | 437 | |
5c6e38d7 | 438 | // {{{ functions vote() and hasVoted() : handles vote to a survey |
439 | public function vote($uid, $args) | |
440 | { | |
1bf36cd1 | 441 | XDB::execute('INSERT INTO survey_votes |
84370781 SJ |
442 | SET survey_id = {?}, uid = {?}', |
443 | $this->id, ($uid == 0) ? null : $uid); // notes the user as having voted | |
5c6e38d7 | 444 | $vid = XDB::insertId(); |
445 | for ($i = 0; $i < count($this->questions); $i++) { | |
446 | $ans = $this->questions[$i]->checkAnswer($args[$i]); | |
9f01f40b | 447 | if (!is_null($ans) && is_array($ans)) { |
448 | foreach ($ans as $a) { | |
449 | XDB::execute('INSERT INTO survey_answers | |
450 | SET vote_id = {?}, | |
451 | question_id = {?}, | |
452 | answer = {?}', $vid, $i, $a); | |
453 | } | |
5c6e38d7 | 454 | } |
455 | } | |
8fe81c50 | 456 | } |
457 | ||
5c6e38d7 | 458 | public function hasVoted($uid) |
8fe81c50 | 459 | { |
1bf36cd1 SJ |
460 | $res = XDB::query('SELECT id |
461 | FROM survey_votes | |
7f376ae0 | 462 | WHERE survey_id = {?} AND uid = {?};', $this->id, $uid); // checks whether the user has already voted |
5c6e38d7 | 463 | return ($res->numRows() != 0); |
8fe81c50 | 464 | } |
5c6e38d7 | 465 | // }}} |
8fe81c50 | 466 | |
5c6e38d7 | 467 | // {{{ static function deleteSurvey() : deletes a survey (and all its votes) |
468 | public static function deleteSurvey($sid) | |
8fe81c50 | 469 | { |
5c6e38d7 | 470 | $sql = 'DELETE s.*, v.*, a.* |
06f4daf9 | 471 | FROM surveys AS s |
5c6e38d7 | 472 | LEFT JOIN survey_votes AS v |
473 | ON v.survey_id=s.id | |
474 | LEFT JOIN survey_answers AS a | |
475 | ON a.vote_id=v.id | |
476 | WHERE s.id={?};'; | |
477 | return XDB::execute($sql, $sid); | |
8fe81c50 | 478 | } |
479 | // }}} | |
480 | ||
5c6e38d7 | 481 | // {{{ static function purgeVotes() : clears all votes concerning a survey (I'm not sure whether it's really useful) |
482 | public static function purgeVotes($sid) | |
8fe81c50 | 483 | { |
5c6e38d7 | 484 | $sql = 'DELETE v.*, a.* |
485 | FROM survey_votes AS v | |
486 | LEFT JOIN survey_answers AS a | |
487 | ON a.vote_id=v.id | |
488 | WHERE v.survey_id={?};'; | |
489 | return XDB::execute($sql, $sid); | |
8fe81c50 | 490 | } |
491 | // }}} | |
492 | ||
5c6e38d7 | 493 | // }}} |
494 | } | |
495 | // }}} | |
8fe81c50 | 496 | |
5c6e38d7 | 497 | // {{{ abstract class SurveyQuestion |
498 | abstract class SurveyQuestion | |
499 | { | |
500 | // {{{ common properties, constructor, and basic methods | |
501 | private $question; | |
502 | private $comment; | |
8fe81c50 | 503 | |
5c6e38d7 | 504 | public function __construct($args) |
8fe81c50 | 505 | { |
5c6e38d7 | 506 | $this->update($args); |
8fe81c50 | 507 | } |
508 | ||
5c6e38d7 | 509 | public function update($a) |
8fe81c50 | 510 | { |
5c6e38d7 | 511 | $this->question = $a['question']; |
512 | $this->comment = $a['comment']; | |
8fe81c50 | 513 | } |
514 | ||
5c6e38d7 | 515 | abstract protected function getQuestionType(); |
516 | // }}} | |
517 | ||
518 | // {{{ function toArray() : converts to array | |
8fe81c50 | 519 | public function toArray() |
520 | { | |
5c6e38d7 | 521 | return array('type' => $this->getQuestionType(), 'question' => $this->question, 'comment' => $this->comment); |
8fe81c50 | 522 | } |
5c6e38d7 | 523 | // }}} |
8fe81c50 | 524 | |
5c6e38d7 | 525 | // {{{ function checkSyntax() : checks question elements (before storing into database), not currently needed (with new structure) |
526 | protected function checkSyntax() | |
8fe81c50 | 527 | { |
5c6e38d7 | 528 | return null; |
8fe81c50 | 529 | } |
530 | // }}} | |
531 | ||
02d94468 | 532 | // {{{ function checkAnswer : returns a correct answer (or a null value if error) |
5c6e38d7 | 533 | public function checkAnswer($ans) |
8fe81c50 | 534 | { |
9f01f40b | 535 | return null; |
8fe81c50 | 536 | } |
537 | // }}} | |
538 | ||
4b8c8634 | 539 | // {{{ functions regarding the results of a survey |
02d94468 | 540 | abstract public function getResultArray($sid, $qid); |
4b8c8634 | 541 | |
8e9f416e | 542 | public function formatAnswer($ans) |
543 | { | |
544 | return $ans; | |
545 | } | |
546 | ||
547 | public function getCSVColumns() | |
4b8c8634 | 548 | { |
549 | return $this->question; | |
550 | } | |
8fe81c50 | 551 | // }}} |
552 | } | |
553 | // }}} | |
554 | ||
fd0084aa | 555 | // {{{ abstract class SurveySimple and its derived classes : "open" questions |
9f01f40b | 556 | // {{{ abstract class SurveySimple extends SurveyQuestion |
8fe81c50 | 557 | abstract class SurveySimple extends SurveyQuestion |
558 | { | |
5c6e38d7 | 559 | public function checkAnswer($ans) |
8fe81c50 | 560 | { |
9f01f40b | 561 | return array($ans); |
562 | } | |
563 | ||
02d94468 | 564 | public function getResultArray($sid, $qid) |
9f01f40b | 565 | { |
566 | $sql = 'SELECT answer | |
567 | FROM survey_answers | |
568 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) | |
569 | AND question_id={?} | |
570 | ORDER BY RAND() | |
571 | LIMIT 5;'; | |
02d94468 | 572 | $res = XDB::query($sql, $sid, $qid); |
573 | return $res->fetchAllAssoc(); | |
8fe81c50 | 574 | } |
575 | } | |
9f01f40b | 576 | // }}} |
8fe81c50 | 577 | |
578 | // {{{ class SurveyText extends SurveySimple : simple text field, allowing a few words | |
579 | class SurveyText extends SurveySimple | |
580 | { | |
5c6e38d7 | 581 | public function getQuestionType() |
8fe81c50 | 582 | { |
583 | return "text"; | |
584 | } | |
585 | } | |
586 | // }}} | |
587 | ||
588 | // {{{ class SurveyTextarea extends SurveySimple : textarea field, allowing longer comments | |
589 | class SurveyTextarea extends SurveySimple | |
590 | { | |
5c6e38d7 | 591 | public function getQuestionType() |
8fe81c50 | 592 | { |
593 | return "textarea"; | |
594 | } | |
595 | } | |
596 | // }}} | |
597 | ||
598 | // {{{ class SurveyNum extends SurveySimple : allows numerical answers | |
599 | class SurveyNum extends SurveySimple | |
600 | { | |
5c6e38d7 | 601 | public function checkAnswer($ans) |
8fe81c50 | 602 | { |
9f01f40b | 603 | return array(intval($ans)); |
8fe81c50 | 604 | } |
605 | ||
606 | protected function getQuestionType() | |
607 | { | |
608 | return "num"; | |
609 | } | |
610 | } | |
611 | // }}} | |
612 | // }}} | |
613 | ||
9f01f40b | 614 | // {{{ abstract class SurveyList and its derived classes : restricted questions that allows only a list of possible answers |
615 | // {{{ abstract class SurveyList extends SurveyQuestion | |
5c6e38d7 | 616 | abstract class SurveyList extends SurveyQuestion |
8fe81c50 | 617 | { |
5c6e38d7 | 618 | protected $choices; |
8fe81c50 | 619 | |
5c6e38d7 | 620 | public function update($args) |
8fe81c50 | 621 | { |
622 | parent::update($args); | |
0f396347 | 623 | $this->choices = array(); |
02d94468 | 624 | foreach ($args['choices'] as $val) { |
eadfa7ba | 625 | if (trim($val) || trim($val) == '0') { |
0f396347 | 626 | $this->choices[] = $val; |
627 | } | |
628 | } | |
8fe81c50 | 629 | } |
630 | ||
5c6e38d7 | 631 | public function toArray() |
8fe81c50 | 632 | { |
5c6e38d7 | 633 | $rArr = parent::toArray(); |
8fe81c50 | 634 | $rArr['choices'] = $this->choices; |
8fe81c50 | 635 | return $rArr; |
636 | } | |
637 | ||
02d94468 | 638 | public function getResultArray($sid, $qid) |
9f01f40b | 639 | { |
640 | $sql = 'SELECT answer, COUNT(id) AS count | |
641 | FROM survey_answers | |
642 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) | |
643 | AND question_id={?} | |
644 | GROUP BY answer ASC'; | |
02d94468 | 645 | $res = XDB::query($sql, $sid, $qid); |
646 | return $res->fetchAllAssoc(); | |
9f01f40b | 647 | } |
4b8c8634 | 648 | |
8e9f416e | 649 | public function formatAnswer($ans) |
4b8c8634 | 650 | { |
8e9f416e | 651 | if (array_key_exists($ans, $this->choices)) { |
652 | return $this->choices[$ans]; | |
653 | } else { | |
654 | return null; | |
4b8c8634 | 655 | } |
4b8c8634 | 656 | } |
8fe81c50 | 657 | } |
9f01f40b | 658 | // }}} |
8fe81c50 | 659 | |
660 | // {{{ class SurveyRadio extends SurveyList : radio question, allows one answer among the list offered | |
661 | class SurveyRadio extends SurveyList | |
662 | { | |
5c6e38d7 | 663 | public function checkAnswer($ans) |
8fe81c50 | 664 | { |
02d94468 | 665 | $a = intval($ans); |
666 | return (array_key_exists($a, $this->choices))? array($a) : null; | |
8fe81c50 | 667 | } |
668 | ||
669 | protected function getQuestionType() | |
670 | { | |
671 | return "radio"; | |
672 | } | |
673 | } | |
674 | // }}} | |
675 | ||
676 | // {{{ class SurveyCheckbox extends SurveyList : checkbox question, allows any number of answers among the list offered | |
677 | class SurveyCheckbox extends SurveyList | |
678 | { | |
5c6e38d7 | 679 | public function checkAnswer($ans) |
8fe81c50 | 680 | { |
9f01f40b | 681 | $rep = array(); |
5c6e38d7 | 682 | foreach ($ans as $a) { |
9f01f40b | 683 | $a = intval($a); |
684 | if (array_key_exists($a, $this->choices)) { | |
685 | $rep[] = $a; | |
8fe81c50 | 686 | } |
687 | } | |
9f01f40b | 688 | return (count($rep) == 0)? null : $rep; |
8fe81c50 | 689 | } |
690 | ||
691 | protected function getQuestionType() | |
692 | { | |
693 | return "checkbox"; | |
694 | } | |
695 | } | |
696 | // }}} | |
697 | // }}} | |
698 | ||
02d94468 | 699 | // {{{ abstract class SurveyTable and its derived classes : table question, each column represents a choice, each line represents a question |
700 | // {{{ abstract class SurveyTable extends SurveyList | |
701 | abstract class SurveyTable extends SurveyList | |
702 | { | |
703 | protected $subquestions; | |
704 | ||
705 | public function update($args) | |
706 | { | |
707 | parent::update($args); | |
708 | $this->subquestions = array(); | |
709 | foreach ($args['subquestions'] as $val) { | |
710 | if (trim($val) || trim($val) == '0') { | |
711 | $this->subquestions[] = $val; | |
712 | } | |
713 | } | |
714 | } | |
715 | ||
716 | public function toArray() | |
717 | { | |
718 | $rArr = parent::toArray(); | |
719 | $rArr['subquestions'] = $this->subquestions; | |
720 | return $rArr; | |
721 | } | |
722 | ||
723 | public function getResultArray($sid, $qid) | |
724 | { | |
725 | $sql = 'SELECT answer, COUNT(id) AS count | |
726 | FROM survey_answers | |
727 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) | |
728 | AND question_id={?} | |
729 | GROUP BY answer ASC'; | |
730 | $res = XDB::iterator($sql, $sid, $qid); | |
731 | $result = array(); | |
732 | for ($i = 0; $i < count($this->subquestions); $i++) { | |
733 | $result[$i] = array_fill(0, count($this->choices), 0); | |
734 | } | |
735 | while ($r = $res->next()) { | |
736 | list($i, $j) = explode(':', $r['answer']); | |
737 | $result[$i][$j] = $r['count']; | |
738 | } | |
739 | return $result; | |
740 | } | |
741 | ||
8e9f416e | 742 | public function formatAnswer($ans) |
02d94468 | 743 | { |
8e9f416e | 744 | list($q, $c) = explode(':', $ans); |
745 | if (array_key_exists($q, $this->subquestions) && array_key_exists($c, $this->choices)) { | |
746 | return array('id' => $q, 'answer' => $this->choices[$c]); | |
747 | } else { | |
748 | return null; | |
02d94468 | 749 | } |
8e9f416e | 750 | } |
751 | ||
752 | public function getCSVColumns() | |
753 | { | |
754 | $q = parent::getCSVColumns(); | |
755 | if (empty($this->subquestions)) { | |
756 | return $q; | |
757 | } | |
758 | $a = array(); | |
759 | for ($k = 0; $k < count($this->subquestions); $k++) { | |
760 | $a[$k] = $q.' : '.$this->subquestions[$k]; | |
02d94468 | 761 | } |
8e9f416e | 762 | return $a; |
02d94468 | 763 | } |
764 | } | |
765 | // }}} | |
766 | ||
767 | // {{{ class SurveyRadioTable extends SurveyTable : SurveyTable with radio type choices | |
768 | class SurveyRadioTable extends SurveyTable | |
769 | { | |
770 | public function checkAnswer($ans) | |
771 | { | |
772 | $rep = array(); | |
773 | foreach ($ans as $k => $a) { | |
774 | if (!array_key_exists($k, $this->subquestions)) { | |
775 | continue; | |
776 | } | |
777 | $a = intval($a); | |
778 | if (array_key_exists($a, $this->choices)) { | |
779 | $rep[] = $k . ':' . $a; | |
780 | } | |
781 | } | |
782 | return (count($rep) == 0)? null : $rep; | |
783 | } | |
784 | ||
785 | protected function getQuestionType() | |
786 | { | |
787 | return "radiotable"; | |
788 | } | |
789 | ||
790 | } | |
791 | // }}} | |
792 | ||
793 | // {{{ class SurveyCheckboxTable extends SurveyTable : SurveyTable with checkbox type choices | |
794 | class SurveyCheckboxTable extends SurveyTable | |
795 | { | |
796 | public function checkAnswer($ans) | |
797 | { | |
798 | $rep = array(); | |
799 | foreach ($ans as $k => $aa) { | |
800 | if (!array_key_exists($k, $this->subquestions)) { | |
801 | continue; | |
802 | } | |
803 | foreach ($aa as $a) { | |
804 | $a = intval($a); | |
805 | if (array_key_exists($a, $this->choices)) { | |
806 | $rep[] = $k . ':' . $a; | |
807 | } | |
808 | } | |
809 | } | |
810 | return (count($rep) == 0)? null : $rep; | |
811 | } | |
812 | ||
813 | protected function getQuestionType() | |
814 | { | |
815 | return "checkboxtable"; | |
816 | } | |
817 | ||
818 | } | |
819 | // }}} | |
820 | // }}} | |
821 | ||
8602c852 | 822 | // vim:set et sw=4 sts=4 ts=4 foldmethod=marker enc=utf-8: |
8fe81c50 | 823 | ?> |