# ext/asyncio/events.py
# Copyright (C) 2020-2024 the SQLAlchemy authors and contributors
# <see AUTHORS file>
#
# This module is part of SQLAlchemy and is released under
# the MIT License: https://www.opensource.org/licenses/mit-license.php
from .engine import AsyncConnectable
from .session import AsyncSession
from ...engine import events as engine_event
from ...orm import events as orm_event
class AsyncConnectionEvents(engine_event.ConnectionEvents):
_target_class_doc = "SomeEngine"
_dispatch_target = AsyncConnectable
@classmethod
def _no_async_engine_events(cls):
raise NotImplementedError(
"asynchronous events are not implemented at this time. Apply "
"synchronous listeners to the AsyncEngine.sync_engine or "
"AsyncConnection.sync_connection attributes."
)
@classmethod
def _listen(cls, event_key, retval=False):
cls._no_async_engine_events()
class AsyncSessionEvents(orm_event.SessionEvents):
_target_class_doc = "SomeSession"
_dispatch_target = AsyncSession
@classmethod
def _no_async_engine_events(cls):
raise NotImplementedError(
"asynchronous events are not implemented at this time. Apply "
"synchronous listeners to the AsyncSession.sync_session."
)
@classmethod
def _listen(cls, event_key, retval=False):
cls._no_async_engine_events()
