public function read($ID)
    {
        $member = Member::currentUser();
        if (!$member) {
            return false;
        }

        if ($ID) {
            $notification = InternalNotification::get()
                ->filter([
                    'ID' => $ID,
                    'ToID' => $member->ID,
                    'IsRead' => false
                ])->first();
            if ($notification) {
                $notification->IsRead = true;
                $notification->write();
                return true;
            }
        }
        return false;
    }