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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_comment\event;
  18  
  19  defined('MOODLE_INTERNAL') || die();
  20  
  21  require_once($CFG->dirroot . '/comment/lib.php');
  22  
  23  use core\event\question_deleted;
  24  
  25  /**
  26   * Event observer for question deletion
  27   *
  28   * @package   qbank_comment
  29   * @copyright 2023 onwards Catalyst IT EU {@link https://catalyst-eu.net}
  30   * @author    Mark Johnson <mark.johnson@catalyst-eu.net>
  31   * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32   */
  33  class question_deleted_observer {
  34  
  35      /**
  36       * Delete any comments for the deleted question.
  37       *
  38       * @param question_deleted $event
  39       * @return void
  40       */
  41      public static function delete_question_comments(question_deleted $event): void {
  42          \comment::delete_comments([
  43              'contextid' => \context_system::instance()->id,
  44              'component' => 'qbank_comment',
  45              'commentarea' => 'question',
  46              'itemid' => $event->objectid,
  47          ]);
  48      }
  49  }