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* add full parameter types for ORM with_for_updateMike Bayer2023-05-101-0/+44
| | | | | | | | | | Fixed typing for the :paramref:`_orm.Session.get.with_for_update` parameter of :meth:`_orm.Session.get` and :meth:`_orm.Session.refresh` (as well as corresponding methods on :class:`_asyncio.AsyncSession`) to accept boolean ``True`` and all other argument forms accepted by the parameter at runtime. Fixes: #9762 Change-Id: Ied4d37a269906b3d9be5ab7d31a2fa863360cced
* Fixed typing of limit, offset and fetch to allow ``None``.Federico Caselli2023-01-311-0/+4
| | | | | Fixes: #9183 Change-Id: I1ac3e3698034826122ea8a0cdc9f8f55a10ed6c1
* typing updatesMike Bayer2023-01-201-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | The :meth:`_sql.ColumnOperators.in_` and :meth:`_sql.ColumnOperators.not_in_` are typed to include ``Iterable[Any]`` rather than ``Sequence[Any]`` for more flexibility in argument type. The :func:`_sql.or_` and :func:`_sql.and_` from a typing perspective require the first argument to be present, however these functions still accept zero arguments which will emit a deprecation warning at runtime. Typing is also added to support sending the fixed literal ``False`` for :func:`_sql.or_` and ``True`` for :func:`_sql.and_` as the first argument only, however the documentation now indicates sending the :func:`_sql.false` and :func:`_sql.true` constructs in these cases as a more explicit approach. Fixed typing issue where iterating over a :class:`_orm.Query` object was not correctly typed. Fixes: #9122 Fixes: #9123 Fixes: #9125 Change-Id: I500e3e1b826717b3dd49afa1e682c3c8279c9226
* set up Literal for synchronize_sessionMike Bayer2022-07-231-0/+19
| | | | | Fixes: #8280 Change-Id: I59bc6cc0483375f79e17952188e0c2cde926502c
* pep484 ORM / SQL result supportMike Bayer2022-04-271-5/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | after some experimentation it seems mypy is more amenable to the generic types being fully integrated rather than having separate spin-off types. so key structures like Result, Row, Select become generic. For DML Insert, Update, Delete, these are spun into type-specific subclasses ReturningInsert, ReturningUpdate, ReturningDelete, which is fine since the "row-ness" of these constructs doesn't happen until returning() is called in any case. a Tuple based model is then integrated so that these objects can carry along information about their return types. Overloads at the .execute() level carry through the Tuple from the invoked object to the result. To suit the issue of AliasedClass generating attributes that are dynamic, experimented with a custom subclass AsAliased, but then just settled on having aliased() lie to the type checker and return `Type[_O]`, essentially. will need some type-related accessors for with_polymorphic() also. Additionally, identified an issue in Update when used "mysql style" against a join(), it basically doesn't work if asked to UPDATE two tables on the same column name. added an error message to the specific condition where it happens with a very non-specific error message that we hit a thing we can't do right now, suggest multi-table update as a possible cause. Change-Id: I5eff7eefe1d6166ee74160b2785c5e6a81fa8b95
* pep-484: asyncioMike Bayer2022-04-111-2/+1
| | | | | | | | | | | | | | | | | | | | | in this patch the asyncio/events.py module, which existed only to raise errors when trying to attach event listeners, is removed, as we were already coding an asyncio-specific workaround in upstream Pool / Session to raise this error, just moved the error out to the target and did the same thing for Engine. We also add an async_sessionmaker class. The initial rationale here is because sessionmaker() is hardcoded to Session subclasses, and there's not a way to get the use case of sessionmaker(class_=AsyncSession) to type correctly without changing the sessionmaker() symbol itself to be a function and not a class, which gets too complicated for what this is. Additionally, _SessionClassMethods has only three methods on it, one of which is not usable with asyncio (close_all()), the others not generally used from the session class. Change-Id: I064a5fa5d91cc8d5bbe9597437536e37b4e801fe
* pep-484: session, instancestate, etcMike Bayer2022-04-121-0/+50
Also adds some fixes to annotation-based mapping that have come up, as well as starts to add more pep-484 test cases Change-Id: Ia722bbbc7967a11b23b66c8084eb61df9d233fee