| 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 | |
| 22 | // {{{ class Survey : root of any survey, contains all questions |
| 23 | class Survey |
| 24 | { |
| 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 $shortModes = array(self::MODE_ALL => "tout le monde, anonyme", |
| 33 | self::MODE_XANON => "polytechniciens, anonyme", |
| 34 | self::MODE_XIDENT => "polytechniciens, non anonyme"); |
| 35 | |
| 36 | public static function getModes($long = true) { |
| 37 | return ($long)? self::$longModes : self::$shortModes; |
| 38 | } |
| 39 | |
| 40 | private static $types = array('text' => 'Texte court', |
| 41 | 'textarea' => 'Texte long', |
| 42 | 'num' => 'Numérique', |
| 43 | 'radio' => 'Choix multiples (une réponse)', |
| 44 | 'checkbox' => 'Choix multiples (plusieurs réponses)'); |
| 45 | |
| 46 | public static function getTypes() |
| 47 | { |
| 48 | return self::$types; |
| 49 | } |
| 50 | |
| 51 | public static function isType($t) |
| 52 | { |
| 53 | return array_key_exists($t, self::$types); |
| 54 | } |
| 55 | // }}} |
| 56 | |
| 57 | // {{{ properties, constructor and basic methods |
| 58 | private $id; |
| 59 | private $title; |
| 60 | private $description; |
| 61 | private $end; |
| 62 | private $mode; |
| 63 | private $promos; |
| 64 | private $valid; |
| 65 | private $questions; |
| 66 | |
| 67 | public function __construct($args, $id = -1, $valid = false, $questions = null) |
| 68 | { |
| 69 | $this->update($args); |
| 70 | $this->id = $id; |
| 71 | $this->valid = $valid; |
| 72 | $this->questions = ($questions == null)? array() : $questions; |
| 73 | } |
| 74 | |
| 75 | public function update($args) |
| 76 | { |
| 77 | $this->title = $args['title']; |
| 78 | $this->description = $args['description']; |
| 79 | $this->end = $args['end']; |
| 80 | $this->mode = (isset($args['mode']))? $args['mode'] : self::MODE_ALL; |
| 81 | if ($this->mode == self::MODE_ALL) { |
| 82 | $args['promos'] = ''; |
| 83 | } |
| 84 | $this->promos = ($args['promos'] == '' || preg_match('#^(\d{4}-?|(\d{4})?-\d{4})(,(\d{4}-?|(\d{4})?-\d{4}))*$#', $args['promos']))? $args['promos'] : '#'; |
| 85 | } |
| 86 | // }}} |
| 87 | |
| 88 | // {{{ functions to access general information |
| 89 | public function isMode($mode) |
| 90 | { |
| 91 | return ($this->mode == $mode); |
| 92 | } |
| 93 | |
| 94 | public function checkPromo($promo) |
| 95 | { |
| 96 | if ($this->promos == '') { |
| 97 | return true; |
| 98 | } |
| 99 | $promos = explode(',', $this->promos); |
| 100 | foreach ($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 | } |
| 107 | } |
| 108 | return false; |
| 109 | } |
| 110 | |
| 111 | public function isValid() |
| 112 | { |
| 113 | return $this->valid; |
| 114 | } |
| 115 | |
| 116 | public function isEnded() |
| 117 | { |
| 118 | return (strtotime($this->end) - time() <= 0); |
| 119 | } |
| 120 | |
| 121 | public function getTitle() |
| 122 | { |
| 123 | return $this->title; |
| 124 | } |
| 125 | // }}} |
| 126 | |
| 127 | // {{{ function toArray() : converts a question (or the whole survey) to array, with results if the survey is ended |
| 128 | public function toArray($i = 'all') |
| 129 | { |
| 130 | if ($i != 'all' && $i != 'root') { // if a specific question is requested, then just returns this question converted to array |
| 131 | $i = intval($i); |
| 132 | if (array_key_exists($i, $this->questions)) { |
| 133 | return $this->questions[$i]->toArray(); |
| 134 | } else { |
| 135 | return null; |
| 136 | } |
| 137 | } else { // else returns the root converted to array in any case |
| 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'] = $this->id; |
| 147 | } |
| 148 | if ($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 |
| 156 | $qArr = array(); |
| 157 | for ($k = 0; $k < count($this->questions); $k++) { |
| 158 | $q = $this->questions[$k]->toArray(); |
| 159 | $q['id'] = $k; |
| 160 | if ($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 | } |
| 166 | $qArr[$k] = $q; |
| 167 | } |
| 168 | $a['questions'] = $qArr; |
| 169 | } |
| 170 | return $a; |
| 171 | } |
| 172 | } |
| 173 | // }}} |
| 174 | |
| 175 | // {{{ function toCSV() : builds a CSV file containing all the results of the survey |
| 176 | public function toCSV($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 $csv_output; |
| 236 | } |
| 237 | // }}} |
| 238 | |
| 239 | // {{{ function factory($type, $args) : builds a question according to the given type |
| 240 | public function factory($t, $args) |
| 241 | { |
| 242 | switch ($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; |
| 257 | } |
| 258 | } |
| 259 | // }}} |
| 260 | |
| 261 | // {{{ questions manipulation functions |
| 262 | public function addQuestion($i, $c) |
| 263 | { |
| 264 | $i = intval($i); |
| 265 | if ($this->valid || $i > count($this->questions)) { |
| 266 | return false; |
| 267 | } else { |
| 268 | array_splice($this->questions, $i, 0, array($c)); |
| 269 | return true; |
| 270 | } |
| 271 | } |
| 272 | |
| 273 | public function delQuestion($i) |
| 274 | { |
| 275 | $i = intval($i); |
| 276 | if ($this->valid || !array_key_exists($i, $this->questions)) { |
| 277 | return false; |
| 278 | } else { |
| 279 | array_splice($this->questions, $i, 1); |
| 280 | return true; |
| 281 | } |
| 282 | } |
| 283 | |
| 284 | public function editQuestion($i, $a) |
| 285 | { |
| 286 | if ($i == 'root') { |
| 287 | $this->update($a); |
| 288 | } else { |
| 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); |
| 294 | } |
| 295 | } |
| 296 | return true; |
| 297 | } |
| 298 | // }}} |
| 299 | |
| 300 | // {{{ function checkSyntax() : checks syntax of the questions (currently the root only) before storing the survey in database |
| 301 | private static $errorMessages = array( |
| 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() |
| 307 | { |
| 308 | $rArr = array(); |
| 309 | // checks that the end date given is not already passed |
| 310 | // (unless the survey has already been validated : an admin can have a validated survey expired) |
| 311 | if (!$this->valid && $this->isEnded()) { |
| 312 | $rArr[] = array('question' => 'root', 'error' => self::$errorMessages["datepassed"]); |
| 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"]); |
| 316 | } |
| 317 | return (empty($rArr))? null : $rArr; |
| 318 | } |
| 319 | // }}} |
| 320 | |
| 321 | // {{{ functions that manipulate surveys in database |
| 322 | // {{{ static function retrieveList() : gets the list of available survey (current, old and not validated surveys) |
| 323 | public static function retrieveList($type, $tpl = true) |
| 324 | { |
| 325 | switch ($type) { |
| 326 | case 'c': |
| 327 | case 'current': |
| 328 | $where = 'end > NOW()'; |
| 329 | break; |
| 330 | case 'o': |
| 331 | case 'old': |
| 332 | $where = 'end <= NOW()'; |
| 333 | break; |
| 334 | default: |
| 335 | return null; |
| 336 | } |
| 337 | $sql = 'SELECT id, title, end, mode |
| 338 | FROM survey_surveys |
| 339 | WHERE '.$where.';'; |
| 340 | if ($tpl) { |
| 341 | return XDB::iterator($sql); |
| 342 | } else { |
| 343 | return XDB::iterRow($sql); |
| 344 | } |
| 345 | } |
| 346 | // }}} |
| 347 | |
| 348 | // {{{ static function retrieveSurvey() : gets a survey in database (and unserialize the survey object structure) |
| 349 | public static function retrieveSurvey($sid) |
| 350 | { |
| 351 | $sql = 'SELECT questions, title, description, end, mode, promos |
| 352 | FROM survey_surveys |
| 353 | WHERE id={?}'; |
| 354 | $res = XDB::query($sql, $sid); |
| 355 | $data = $res->fetchOneAssoc(); |
| 356 | if (is_null($data) || !is_array($data)) { |
| 357 | return null; |
| 358 | } |
| 359 | $survey = new Survey($data, $sid, true, unserialize($data['questions'])); |
| 360 | return $survey; |
| 361 | } |
| 362 | // }}} |
| 363 | |
| 364 | // {{{ static function retrieveSurveyInfo() : gets information about a survey (title, description, end date, restrictions) but does not unserialize the survey object structure |
| 365 | public static function retrieveSurveyInfo($sid) |
| 366 | { |
| 367 | $sql = 'SELECT title, description, end, mode, promos |
| 368 | FROM survey_surveys |
| 369 | WHERE id={?}'; |
| 370 | $res = XDB::query($sql, $sid); |
| 371 | return $res->fetchOneAssoc(); |
| 372 | } |
| 373 | // }}} |
| 374 | |
| 375 | // {{{ static function retrieveSurveyReq() : gets a survey request to validate |
| 376 | public static function retrieveSurveyReq($id) |
| 377 | { |
| 378 | require_once 'validations.inc.php'; |
| 379 | $surveyreq = Validate::get_request_by_id($id); |
| 380 | if ($surveyreq == null) { |
| 381 | return null; |
| 382 | } |
| 383 | $data = array('title' => $surveyreq->title, |
| 384 | 'description' => $surveyreq->description, |
| 385 | 'end' => $surveyreq->end, |
| 386 | 'mode' => $surveyreq->mode, |
| 387 | 'promos' => $surveyreq->promos); |
| 388 | $survey = new Survey($data, $id, false, $surveyreq->questions); |
| 389 | return $survey; |
| 390 | } |
| 391 | // }}} |
| 392 | |
| 393 | // {{{ function proposeSurvey() : stores a proposition of survey in database (before validation) |
| 394 | public function proposeSurvey() |
| 395 | { |
| 396 | require_once 'validations.inc.php'; |
| 397 | $surveyreq = new SurveyReq($this->title, $this->description, $this->end, $this->mode, $this->promos, $this->questions, S::v('uid')); |
| 398 | return $surveyreq->submit(); |
| 399 | } |
| 400 | // }}} |
| 401 | |
| 402 | // {{{ function updateSurvey() : updates a survey in database (before validation) |
| 403 | public function updateSurvey() |
| 404 | { |
| 405 | if ($this->valid) { |
| 406 | $sql = 'UPDATE survey_surveys |
| 407 | SET questions={?}, |
| 408 | title={?}, |
| 409 | description={?}, |
| 410 | end={?}, |
| 411 | mode={?}, |
| 412 | promos={?} |
| 413 | WHERE id={?};'; |
| 414 | return XDB::execute($sql, serialize($this->questions), $this->title, $this->description, $this->end, $this->mode, $this->promos, $this->id); |
| 415 | } else { |
| 416 | require_once 'validations.inc.php'; |
| 417 | $surveyreq = Validate::get_request_by_id($this->id); |
| 418 | if ($surveyreq == null) { |
| 419 | return false; |
| 420 | } |
| 421 | return $surveyreq->updateReq($this->title, $this->description, $this->end, $this->mode, $this->promos, $this->questions); |
| 422 | } |
| 423 | } |
| 424 | // }}} |
| 425 | |
| 426 | // {{{ functions vote() and hasVoted() : handles vote to a survey |
| 427 | public function vote($uid, $args) |
| 428 | { |
| 429 | XDB::execute('INSERT INTO survey_votes |
| 430 | SET survey_id={?}, user_id={?};', $this->id, $uid); // notes the user as having voted |
| 431 | $vid = XDB::insertId(); |
| 432 | for ($i = 0; $i < count($this->questions); $i++) { |
| 433 | $ans = $this->questions[$i]->checkAnswer($args[$i]); |
| 434 | if (!is_null($ans) && is_array($ans)) { |
| 435 | foreach ($ans as $a) { |
| 436 | XDB::execute('INSERT INTO survey_answers |
| 437 | SET vote_id = {?}, |
| 438 | question_id = {?}, |
| 439 | answer = {?}', $vid, $i, $a); |
| 440 | } |
| 441 | } |
| 442 | } |
| 443 | } |
| 444 | |
| 445 | public function hasVoted($uid) |
| 446 | { |
| 447 | $res = XDB::query('SELECT id |
| 448 | FROM survey_votes |
| 449 | WHERE survey_id={?} AND user_id={?};', $this->id, $uid); // checks whether the user has already voted |
| 450 | return ($res->numRows() != 0); |
| 451 | } |
| 452 | // }}} |
| 453 | |
| 454 | // {{{ static function deleteSurvey() : deletes a survey (and all its votes) |
| 455 | public static function deleteSurvey($sid) |
| 456 | { |
| 457 | $sql = 'DELETE s.*, v.*, a.* |
| 458 | FROM survey_surveys AS s |
| 459 | LEFT JOIN survey_votes AS v |
| 460 | ON v.survey_id=s.id |
| 461 | LEFT JOIN survey_answers AS a |
| 462 | ON a.vote_id=v.id |
| 463 | WHERE s.id={?};'; |
| 464 | return XDB::execute($sql, $sid); |
| 465 | } |
| 466 | // }}} |
| 467 | |
| 468 | // {{{ static function purgeVotes() : clears all votes concerning a survey (I'm not sure whether it's really useful) |
| 469 | public static function purgeVotes($sid) |
| 470 | { |
| 471 | $sql = 'DELETE v.*, a.* |
| 472 | FROM survey_votes AS v |
| 473 | LEFT JOIN survey_answers AS a |
| 474 | ON a.vote_id=v.id |
| 475 | WHERE v.survey_id={?};'; |
| 476 | return XDB::execute($sql, $sid); |
| 477 | } |
| 478 | // }}} |
| 479 | |
| 480 | // }}} |
| 481 | } |
| 482 | // }}} |
| 483 | |
| 484 | // {{{ abstract class SurveyQuestion |
| 485 | abstract class SurveyQuestion |
| 486 | { |
| 487 | // {{{ common properties, constructor, and basic methods |
| 488 | private $question; |
| 489 | private $comment; |
| 490 | |
| 491 | public function __construct($args) |
| 492 | { |
| 493 | $this->update($args); |
| 494 | } |
| 495 | |
| 496 | public function update($a) |
| 497 | { |
| 498 | $this->question = $a['question']; |
| 499 | $this->comment = $a['comment']; |
| 500 | } |
| 501 | |
| 502 | abstract protected function getQuestionType(); |
| 503 | // }}} |
| 504 | |
| 505 | // {{{ function toArray() : converts to array |
| 506 | public function toArray() |
| 507 | { |
| 508 | return array('type' => $this->getQuestionType(), 'question' => $this->question, 'comment' => $this->comment); |
| 509 | } |
| 510 | // }}} |
| 511 | |
| 512 | // {{{ function checkSyntax() : checks question elements (before storing into database), not currently needed (with new structure) |
| 513 | protected function checkSyntax() |
| 514 | { |
| 515 | return null; |
| 516 | } |
| 517 | // }}} |
| 518 | |
| 519 | // {{{ function checkAnswer : returns a correctly formatted answer (or nothing empty string if error) |
| 520 | public function checkAnswer($ans) |
| 521 | { |
| 522 | return null; |
| 523 | } |
| 524 | // }}} |
| 525 | |
| 526 | // {{{ functions regarding the results of a survey |
| 527 | public function buildResultRequest() |
| 528 | { |
| 529 | return ''; |
| 530 | } |
| 531 | |
| 532 | public function getCSVColumn() |
| 533 | { |
| 534 | return $this->question; |
| 535 | } |
| 536 | // }}} |
| 537 | } |
| 538 | // }}} |
| 539 | |
| 540 | // {{{ abstract class SurveySimple and its derived classes : "open" questions |
| 541 | // {{{ abstract class SurveySimple extends SurveyQuestion |
| 542 | abstract class SurveySimple extends SurveyQuestion |
| 543 | { |
| 544 | public function checkAnswer($ans) |
| 545 | { |
| 546 | return array($ans); |
| 547 | } |
| 548 | |
| 549 | public function buildResultRequest() |
| 550 | { |
| 551 | $sql = 'SELECT answer |
| 552 | FROM survey_answers |
| 553 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) |
| 554 | AND question_id={?} |
| 555 | ORDER BY RAND() |
| 556 | LIMIT 5;'; |
| 557 | return $sql; |
| 558 | } |
| 559 | } |
| 560 | // }}} |
| 561 | |
| 562 | // {{{ class SurveyText extends SurveySimple : simple text field, allowing a few words |
| 563 | class SurveyText extends SurveySimple |
| 564 | { |
| 565 | public function getQuestionType() |
| 566 | { |
| 567 | return "text"; |
| 568 | } |
| 569 | } |
| 570 | // }}} |
| 571 | |
| 572 | // {{{ class SurveyTextarea extends SurveySimple : textarea field, allowing longer comments |
| 573 | class SurveyTextarea extends SurveySimple |
| 574 | { |
| 575 | public function getQuestionType() |
| 576 | { |
| 577 | return "textarea"; |
| 578 | } |
| 579 | } |
| 580 | // }}} |
| 581 | |
| 582 | // {{{ class SurveyNum extends SurveySimple : allows numerical answers |
| 583 | class SurveyNum extends SurveySimple |
| 584 | { |
| 585 | public function checkAnswer($ans) |
| 586 | { |
| 587 | return array(intval($ans)); |
| 588 | } |
| 589 | |
| 590 | protected function getQuestionType() |
| 591 | { |
| 592 | return "num"; |
| 593 | } |
| 594 | } |
| 595 | // }}} |
| 596 | // }}} |
| 597 | |
| 598 | // {{{ abstract class SurveyList and its derived classes : restricted questions that allows only a list of possible answers |
| 599 | // {{{ abstract class SurveyList extends SurveyQuestion |
| 600 | abstract class SurveyList extends SurveyQuestion |
| 601 | { |
| 602 | protected $choices; |
| 603 | |
| 604 | public function update($args) |
| 605 | { |
| 606 | parent::update($args); |
| 607 | $this->choices = array(); |
| 608 | foreach ($args['options'] as $val) { |
| 609 | if (trim($val)) { |
| 610 | $this->choices[] = $val; |
| 611 | } |
| 612 | } |
| 613 | } |
| 614 | |
| 615 | public function toArray() |
| 616 | { |
| 617 | $rArr = parent::toArray(); |
| 618 | $rArr['choices'] = $this->choices; |
| 619 | return $rArr; |
| 620 | } |
| 621 | |
| 622 | public function buildResultRequest() |
| 623 | { |
| 624 | $sql = 'SELECT answer, COUNT(id) AS count |
| 625 | FROM survey_answers |
| 626 | WHERE vote_id IN (SELECT id FROM survey_votes WHERE survey_id={?}) |
| 627 | AND question_id={?} |
| 628 | GROUP BY answer ASC'; |
| 629 | return $sql; |
| 630 | } |
| 631 | |
| 632 | public function getCSVColumn() |
| 633 | { |
| 634 | $r = parent::getCSVColumn(); |
| 635 | if (empty($this->choices)) { |
| 636 | return $r; |
| 637 | } |
| 638 | $r .= ' [0 => '.$this->choices[0]; |
| 639 | for ($k = 1; $k < count($this->choices); $k++) { |
| 640 | $r .= ', '.$k.' => '.$this->choices[$k]; |
| 641 | } |
| 642 | $r .= ']'; |
| 643 | return $r; |
| 644 | } |
| 645 | } |
| 646 | // }}} |
| 647 | |
| 648 | // {{{ class SurveyRadio extends SurveyList : radio question, allows one answer among the list offered |
| 649 | class SurveyRadio extends SurveyList |
| 650 | { |
| 651 | public function checkAnswer($ans) |
| 652 | { |
| 653 | return (array_key_exists($ans, $this->choices))? array($ans) : null; |
| 654 | } |
| 655 | |
| 656 | protected function getQuestionType() |
| 657 | { |
| 658 | return "radio"; |
| 659 | } |
| 660 | } |
| 661 | // }}} |
| 662 | |
| 663 | // {{{ class SurveyCheckbox extends SurveyList : checkbox question, allows any number of answers among the list offered |
| 664 | class SurveyCheckbox extends SurveyList |
| 665 | { |
| 666 | public function checkAnswer($ans) |
| 667 | { |
| 668 | $rep = array(); |
| 669 | foreach ($ans as $a) { |
| 670 | $a = intval($a); |
| 671 | if (array_key_exists($a, $this->choices)) { |
| 672 | $rep[] = $a; |
| 673 | } |
| 674 | } |
| 675 | return (count($rep) == 0)? null : $rep; |
| 676 | } |
| 677 | |
| 678 | protected function getQuestionType() |
| 679 | { |
| 680 | return "checkbox"; |
| 681 | } |
| 682 | } |
| 683 | // }}} |
| 684 | // }}} |
| 685 | |
| 686 | // vim:set et sw=4 sts=4 sws=4 foldmethod=marker enc=utf-8: |
| 687 | ?> |