47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright 2015, 2016 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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import importlib
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import platform
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from ._base import IncorrectDatabaseSetup
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from .postgres import PostgresEngine
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from .sqlite import Sqlite3Engine
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SUPPORTED_MODULE = {
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"sqlite3": Sqlite3Engine,
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"psycopg2": PostgresEngine,
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}
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def create_engine(database_config):
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name = database_config["name"]
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engine_class = SUPPORTED_MODULE.get(name, None)
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if engine_class:
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# pypy requires psycopg2cffi rather than psycopg2
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if (name == "psycopg2" and
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platform.python_implementation() == "PyPy"):
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name = "psycopg2cffi"
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module = importlib.import_module(name)
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return engine_class(module, database_config)
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raise RuntimeError(
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"Unsupported database engine '%s'" % (name,)
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)
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__all__ = ["create_engine", "IncorrectDatabaseSetup"]
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