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45 lines
1.4 KiB
45 lines
1.4 KiB
3 years ago
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# ext/asyncio/events.py
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# Copyright (C) 2020-2022 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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from .engine import AsyncConnectable
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from .session import AsyncSession
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from ...engine import events as engine_event
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from ...orm import events as orm_event
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class AsyncConnectionEvents(engine_event.ConnectionEvents):
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_target_class_doc = "SomeEngine"
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_dispatch_target = AsyncConnectable
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@classmethod
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def _no_async_engine_events(cls):
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raise NotImplementedError(
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"asynchronous events are not implemented at this time. Apply "
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"synchronous listeners to the AsyncEngine.sync_engine or "
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"AsyncConnection.sync_connection attributes."
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)
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@classmethod
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def _listen(cls, event_key, retval=False):
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cls._no_async_engine_events()
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class AsyncSessionEvents(orm_event.SessionEvents):
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_target_class_doc = "SomeSession"
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_dispatch_target = AsyncSession
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@classmethod
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def _no_async_engine_events(cls):
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raise NotImplementedError(
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"asynchronous events are not implemented at this time. Apply "
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"synchronous listeners to the AsyncSession.sync_session."
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)
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@classmethod
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def _listen(cls, event_key, retval=False):
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cls._no_async_engine_events()
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