anonymousland-synapse/synapse/storage/engines/maria.py

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# -*- coding: utf-8 -*-
# Copyright 2015 OpenMarket Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
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from synapse.storage import prepare_database
import types
class MariaEngine(object):
def __init__(self, database_module):
self.module = database_module
def convert_param_style(self, sql):
return sql.replace("?", "%s")
def encode_parameter(self, param):
if isinstance(param, types.BufferType):
return bytes(param)
return param
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def on_new_connection(self, db_conn):
pass
def prepare_database(self, db_conn):
cur = db_conn.cursor()
cur.execute(
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"ALTER DATABASE CHARACTER SET utf8mb4 COLLATE utf8mb4_bin"
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)
db_conn.commit()
prepare_database(db_conn, self)
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def is_deadlock(self, error):
if isinstance(error, self.module.DatabaseError):
return error.sqlstate == "40001" and error.errno == 1213
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return False
def load_unicode(self, v):
return bytes(v).decode("UTF8")