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45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015 OpenMarket Ltd
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from synapse.storage import prepare_database
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class PostgresEngine(object):
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def __init__(self, database_module):
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self.module = database_module
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self.module.extensions.register_type(self.module.extensions.UNICODE)
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def convert_param_style(self, sql):
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return sql.replace("?", "%s")
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def encode_parameter(self, param):
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return param
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def on_new_connection(self, db_conn):
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db_conn.set_isolation_level(
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self.module.extensions.ISOLATION_LEVEL_REPEATABLE_READ
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)
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def prepare_database(self, db_conn):
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prepare_database(db_conn, self)
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def is_deadlock(self, error):
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if isinstance(error, self.module.DatabaseError):
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return error.pgcode in ["40001", "40P01"]
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return False
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def is_connection_closed(self, conn):
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return bool(conn)
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