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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  namespace qbank_customfields\event;
  18  
  19  use core\event\question_deleted;
  20  use qbank_customfields\customfield\question_handler;
  21  
  22  /**
  23   * Event observer for question deletion
  24   *
  25   * @package   qbank_customfields
  26   * @copyright 2023 onwards Catalyst IT EU {@link https://catalyst-eu.net}
  27   * @author    Mark Johnson <mark.johnson@catalyst-eu.net>
  28   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  29   */
  30  class question_deleted_observer {
  31  
  32      /**
  33       * Delete any custom field data for the deleted question.
  34       *
  35       * @param question_deleted $event
  36       * @return void
  37       */
  38      public static function delete_question_customfields(question_deleted $event): void {
  39          question_handler::create()->delete_instance($event->objectid);
  40      }
  41  }