UniqueCodeMapping::relations PHP Метод

    public function relations()
    {
        return array('event_id' => array(self::BELONGS_TO, 'Event', 'id'), 'unique_code_id' => array(self::BELONGS_TO, 'UniqueCodes', 'id'), 'user_id' => array(self::BELONGS_TO, 'User', 'id'));
    }