mirror of https://github.com/morpheus65535/bazarr
65 lines
2.0 KiB
Python
65 lines
2.0 KiB
Python
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# dialects/mssql/aioodbc.py
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# Copyright (C) 2005-2024 the SQLAlchemy authors and contributors
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# <see AUTHORS file>
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#
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# This module is part of SQLAlchemy and is released under
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# the MIT License: https://www.opensource.org/licenses/mit-license.php
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# mypy: ignore-errors
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r"""
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.. dialect:: mssql+aioodbc
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:name: aioodbc
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:dbapi: aioodbc
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:connectstring: mssql+aioodbc://<username>:<password>@<dsnname>
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:url: https://pypi.org/project/aioodbc/
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Support for the SQL Server database in asyncio style, using the aioodbc
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driver which itself is a thread-wrapper around pyodbc.
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.. versionadded:: 2.0.23 Added the mssql+aioodbc dialect which builds
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on top of the pyodbc and general aio* dialect architecture.
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Using a special asyncio mediation layer, the aioodbc dialect is usable
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as the backend for the :ref:`SQLAlchemy asyncio <asyncio_toplevel>`
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extension package.
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Most behaviors and caveats for this driver are the same as that of the
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pyodbc dialect used on SQL Server; see :ref:`mssql_pyodbc` for general
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background.
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This dialect should normally be used only with the
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:func:`_asyncio.create_async_engine` engine creation function; connection
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styles are otherwise equivalent to those documented in the pyodbc section::
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from sqlalchemy.ext.asyncio import create_async_engine
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engine = create_async_engine(
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"mssql+aioodbc://scott:tiger@mssql2017:1433/test?"
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"driver=ODBC+Driver+18+for+SQL+Server&TrustServerCertificate=yes"
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)
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"""
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from __future__ import annotations
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from .pyodbc import MSDialect_pyodbc
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from .pyodbc import MSExecutionContext_pyodbc
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from ...connectors.aioodbc import aiodbcConnector
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class MSExecutionContext_aioodbc(MSExecutionContext_pyodbc):
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def create_server_side_cursor(self):
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return self._dbapi_connection.cursor(server_side=True)
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class MSDialectAsync_aioodbc(aiodbcConnector, MSDialect_pyodbc):
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driver = "aioodbc"
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supports_statement_cache = True
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execution_ctx_cls = MSExecutionContext_aioodbc
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dialect = MSDialectAsync_aioodbc
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