modules/survey/multiple.inc.php

   1 <?php
   2 /***************************************************************************
   3  *  Copyright (C) 2003-2011 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 SurveyQuestionMultiple extends SurveyQuestion
  23 {
  24     public function __construct(Survey $survey)
  25     {
  26         parent::__construct($survey);
  27         $this->type = "multiple";
  28     }
  29
  30     protected function buildAnswer(SurveyAnswer $answer, PlDict $data)
  31     {
  32         $content = $data->v($this->qid);
  33         $value   = $content['answers'];
  34         if (empty($value)) {
  35             $answer->answer = null;
  36             return true;
  37         }
  38         if ($this->parameters['subtype'] == 'radio') {
  39             if (count($value) > 1) {
  40                 throw new Exception("You cannot select more than one answer");
  41             }
  42         }
  43         $answers = array();
  44         $answers['answers'] = array();
  45         foreach ($value as $key=>$text) {
  46             if (can_convert_to_integer($key)) {
  47                 $key = to_integer($key);
  48                 if ($text != $this->parameters['answers'][$key]) {
  49                     throw new Exception("Answer text does not match");
  50                 }
  51                 $answers['answers'][] = $key;
  52             } else if ($key != 'other') {
  53                 throw new Exception("Unsupported answer id $key");
  54             } else if (!$this->parameters['allow_other']) {
  55                 throw new Exception("Got 'Other' answer while not supported");
  56             } else if (!isset($content['other'])) {
  57                 $answers['other'] = '';
  58             } else {
  59                 $answers['other'] = $content['other'];
  60             }
  61         }
  62         if (empty($value)) {
  63             $answer->answer = null;
  64             return false;
  65         } else {
  66             $answer->answer = $answers;
  67         }
  68         return true;
  69     }
  70 }
  71
  72 ?>