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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Admin settings for the multichoice question type.
  19   *
  20   * @package   qtype_multichoice
  21   * @copyright  2015 onwards Nadav Kavalerchik
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die();
  26  
  27  /**
  28   * Admin settings class for the multichoice question type method.
  29   *
  30   * Just so we can lazy-load the numbering style choices.
  31   *
  32   * @copyright  2015 onwards Nadav Kavalerchik
  33   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  34   */
  35  class qtype_multichoice_admin_setting_answernumbering extends admin_setting_configselect {
  36  
  37      /**
  38       * This function may be used in ancestors for lazy loading of choices
  39       *
  40       * Override this method if loading of choices is expensive, such
  41       * as when it requires multiple db requests.
  42       *
  43       * @return bool true if loaded, false if error
  44       */
  45      public function load_choices() {
  46          global $CFG;
  47  
  48          if (is_array($this->choices)) {
  49              return true;
  50          }
  51  
  52          require_once($CFG->dirroot . '/question/type/multichoice/questiontype.php');
  53          $this->choices = qtype_multichoice::get_numbering_styles();
  54  
  55          return true;
  56      }
  57  }