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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   * Abstract comment deleted event.
  19   *
  20   * @package    core
  21   * @copyright  2013 Rajesh Taneja <rajesh@moodle.com>
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  namespace core\event;
  26  
  27  defined('MOODLE_INTERNAL') || die();
  28  
  29  /**
  30   * Abstract comment deleted event class.
  31   *
  32   * This class has to be extended by any event which is triggred while deleting comment.
  33   *
  34   * @property-read array $other {
  35   *      Extra information about event.
  36   *
  37   *      - int itemid: id of item for which comment is deleted.
  38   * }
  39   *
  40   * @package    core
  41   * @since      Moodle 2.7
  42   * @copyright  2013 Rajesh Taneja <rajesh@moodle.com>
  43   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  44   */
  45  abstract class comment_deleted extends base {
  46  
  47      /**
  48       * Init method.
  49       *
  50       * @return void
  51       */
  52      protected function init() {
  53          $this->data['crud'] = 'd';
  54          $this->data['edulevel'] = self::LEVEL_PARTICIPATING;
  55          $this->data['objecttable'] = 'comments';
  56      }
  57  
  58      /**
  59       * Return localised event name.
  60       *
  61       * @return string
  62       */
  63      public static function get_name() {
  64          return get_string('eventcommentdeleted', 'moodle');
  65      }
  66  
  67      /**
  68       * Returns description of what happened.
  69       *
  70       * @return string
  71       */
  72      public function get_description() {
  73          return "The user with id '$this->userid' deleted the comment with id '$this->objectid' from the '$this->component' " .
  74              "with course module id '$this->contextinstanceid'.";
  75      }
  76  
  77      /**
  78       * Get URL related to the action.
  79       *
  80       * @return \moodle_url
  81       */
  82      public function get_url() {
  83          $context = $this->get_context();
  84          if ($context) {
  85              return $context->get_url();
  86          } else {
  87              return null;
  88          }
  89      }
  90  
  91      /**
  92       * Custom validation.
  93       *
  94       * @throws \coding_exception
  95       * @return void
  96       */
  97      protected function validate_data() {
  98          parent::validate_data();
  99          if (!isset($this->other['itemid'])) {
 100              throw new \coding_exception('The \'itemid\' value must be set in other.');
 101          }
 102      }
 103  
 104      public static function get_objectid_mapping() {
 105          return array('db' => 'comments', 'restore' => 'comment');
 106      }
 107  
 108      public static function get_other_mapping() {
 109          // We cannot map fields that do not have a 1:1 mapping.
 110          $othermapped = array();
 111          $othermapped['itemid'] = base::NOT_MAPPED;
 112          return $othermapped;
 113      }
 114  }