Fixes: #6967 Change-Id: I222cb5bdedf572e734c827d72bcbced202cdd62f
while I dont like this approach very much, people will likely be asking for it a lot, so represent the most correct and efficient form we can handle right now. Added missing ``**kw`` arguments to the :meth:`_asyncio.AsyncSession.connection` method. Change-Id: Idadae2a02a4d96ecb96a5723ce64d017ab4c6217 References: https://github.com/sqlalchemy/sqlalchemy/discussions/6965
Provide better error message when trying to insepct and async engine or asnyc connection. Change-Id: I907f3a22c6b76fe43df9d40cb0e69c57f74a7982
The :class:`_asyncio.AsyncSession` now supports overriding which :class:`_orm.Session` it uses as the proxied instance. A custom ``Session`` class can be passed using the :paramref:`.AsyncSession.sync_session_class` parameter or by subclassing the ``AsyncSession`` and specifying a custom :attr:`.AsyncSession.sync_session_class`. Fixes: #6689 Change-Id: Idf9c24eae6c9f4e2fff292ed748feaa449a8deaa
Fixed a bug in :meth:`_asyncio.AsyncSession.execute` and :meth:`_asyncio.AsyncSession.stream` that required ``execution_options`` to be an instance of ``immutabledict`` when defined. It now correctly accepts any mapping. Fixes: #6943 Change-Id: Ic09de480dc2da1b0bdce25acb60b8f01371971f9
Modified the approach used for history tracking of scalar object relationships that are not many-to-one, i.e. one-to-one relationships that would otherwise be one-to-many. When replacing a one-to-one value, the "old" value that would be replaced is no longer loaded immediately, and is instead handled during the flush process. This eliminates an historically troublesome lazy load that otherwise often occurs when assigning to a one-to-one attribute, and is particularly troublesome when using "lazy='raise'" as well as asyncio use cases. This change does cause a behavioral change within the :meth:`_orm.AttributeEvents.set` event, which is nonetheless currently documented, which is that the event applied to such a one-to-one attribute will no longer receive the "old" parameter if it is unloaded and the :paramref:`_orm.relationship.active_history` flag is not set. As is documented in :meth:`_orm.AttributeEvents.set`, if the event handler needs to receive the "old" value when the event fires off, the active_history flag must be established either with the event listener or with the relationship. This is already the behavior with other kinds of attributes such as many-to-one and column value references. The change additionally will defer updating a backref on the "old" value in the less common case that the "old" value is locally present in the session, but isn't loaded on the relationship in question, until the next flush occurs. If this causes an issue, again the normal :paramref:`_orm.relationship.active_history` flag can be set to ``True`` on the relationship. A private flag which restores the old value is retained for now, as support within relevant test suites to exercise the old and new behaviors together. This is so that if the behavioral change produces problems we have test harnesses set up to further examine these behaviors. The "legacy" style can go away in 2.0 or in a much later 1.4 release. Fixes: #6708 Change-Id: Id7f72fc39dcbec9119b665e528667a9919bb73b4
as it relies upon asyncio.current_task that's not in 3.6 Change-Id: I2b09295bf736811f260640102214a531c9b9e816
Implemented :class:`_asyncio.async_scoped_session` to address some asyncio-related incompatibilities between :class:`_orm.scoped_session` and :class:`_asyncio.AsyncSession`, in which some methods (notably the :meth:`_asyncio.async_scoped_session.remove` method) should be used with the ``await`` keyword. Fixes: #6583 Closes: #6603 Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/6603 Pull-request-sha: 0e8ef87dc824dcd83dca01641441afc453c8e07a Change-Id: I9bfe56f8670302ff0015d9dc56c1e3ac5b92b118
Fixed an issue that presented itself when using the :class:`_pool.NullPool` or the :class:`_pool.StaticPool` with an async engine. This mostly affected the aiosqlite dialect. Fixes: #6575 Change-Id: Ic1e27d99ffcb20ed4de82ea78f430a0f3b629d86