public function wipe($type) {
		try {
			$this->writer->wipe($type);
			return true;
		}catch(RedBean_Exception_SQL $e) {
			if (!$this->writer->sqlStateIn($e->getSQLState(),
			array(RedBean_QueryWriter::C_SQLSTATE_NO_SUCH_TABLE)
			)) throw $e;
			return false;
		}
	}