Ruckusing_Adapter_PgSQL_Base::beginTransaction PHP Method

    private function beginTransaction()
    {
        if ($this->_in_trx === true) {
            throw new Ruckusing_Exception('Transaction already started', Ruckusing_Exception::QUERY_ERROR);
        }
        pg_query($this->conn, "BEGIN");
        $this->_in_trx = true;
    }