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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   * Event observer.
  19   *
  20   * @package    block_recent_activity
  21   * @copyright  2014 Marina Glancy
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  defined('MOODLE_INTERNAL') || die();
  26  
  27  /**
  28   * Event observer.
  29   * Stores all actions about modules create/update/delete in plugin own's table.
  30   * This allows the block to avoid expensive queries to the log table.
  31   *
  32   * @package    block_recent_activity
  33   * @copyright  2014 Marina Glancy
  34   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  35   */
  36  class block_recent_activity_observer {
  37  
  38      /** @var int indicates that course module was created */
  39      const CM_CREATED = 0;
  40      /** @var int indicates that course module was udpated */
  41      const CM_UPDATED = 1;
  42      /** @var int indicates that course module was deleted */
  43      const CM_DELETED = 2;
  44  
  45      /**
  46       * Store all actions about modules create/update/delete in own table.
  47       *
  48       * @param \core\event\base $event
  49       */
  50      public static function store(\core\event\base $event) {
  51          global $DB;
  52          $eventdata = new \stdClass();
  53          switch ($event->eventname) {
  54              case '\core\event\course_module_created':
  55                  $eventdata->action = self::CM_CREATED;
  56                  break;
  57              case '\core\event\course_module_updated':
  58                  $eventdata->action = self::CM_UPDATED;
  59                  break;
  60              case '\core\event\course_module_deleted':
  61                  $eventdata->action = self::CM_DELETED;
  62                  $eventdata->modname = $event->other['modulename'];
  63                  break;
  64              default:
  65                  return;
  66          }
  67          $eventdata->timecreated = $event->timecreated;
  68          $eventdata->courseid = $event->courseid;
  69          $eventdata->cmid = $event->objectid;
  70          $eventdata->userid = $event->userid;
  71          $DB->insert_record('block_recent_activity', $eventdata);
  72      }
  73  }