flask-sqlalchemy，, def get_

flask-sqlalchemy，, def get_

    def get_appsys_by_no(self, no):        o_type = self.order_type(no)        table_name = "t_order_" + o_type.lower()        #: result = db.session.execute("SELECT * FROM %s where no = '%s'" %(table_name, no))        result = db.session.execute("SELECT * FROM %s where no = :no" % table_name, {'no': no})        Record = namedtuple('Record', result.keys())        records = [Record(*r) for r in result.fetchall()]        return records[0] if records else None