public function getGroupedAttributes()
    {
        return array(
            AbstractVoter::GROUP_USER => array(
                self::VIEW,
                self::CREATE_POST,
                self::CREATE_TOPIC,
                self::UPLOAD_FILE
            ),
            AbstractVoter::GROUP_MOD => array(
                self::EDIT_POST,
                self::EDIT_TOPIC,
                self::DELETE_POST,
                self::DELETE_TOPIC,
                self::MOVE_POST,
                self::MOVE_TOPIC,
                self::SPLIT_TOPIC,
            )
        );
    }