db.py 文件源码

def clean(self):
        """Clean the database of any existing Ravel components"""
        # close existing connections
        self.conn.close()

        conn = None
        try:
            conn = psycopg2.connect(database="postgres",
                                    user=self.user,
                                    password=self.passwd)
            conn.set_isolation_level(ISOLEVEL)
            cursor = conn.cursor()
            cursor.execute("drop database %s" % self.name)
        except psycopg2.DatabaseError, e:
            logger.warning("error cleaning database: %s", self.fmt_errmsg(e))
        finally:
            if conn:
                conn.close()