public function extend_activity_listener($listener, $item) { if (!empty($this->activity_type) && $item->type == $this->activity_type) { $listener->component = $this->id; $listener->item_id = $item->item_id; $listener->user_id = $item->user_id; if (!empty($this->secondary_item_id_param)) { $listener->secondary_item_id = $item->secondary_item_id; } } }