Pass keyword arguments to SQLAlchemy relationships in SQLModel relationships

[agronholm]

Changes

Fixes #376.

Refactors the API in such a way that lets the SQLModel code generator pass relationship arguments to the underlying SQLAlchemy relationship.

Checklist

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• You've added tests (in tests/) which would fail without your patch
• You've added a new changelog entry (in CHANGES.rst).

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Updating the changelog

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If, say, your patch fixes issue #123, the entry should look like this:

- Fix big bad boo-boo in task groups
  (`#123 <https://github.com/agronholm/sqlacodegen/issues/123>`_; PR by @yourgithubaccount)

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[coveralls]

coverage: 97.685% (+0.1%) from 97.572%
when pulling d32e4be on fix-sqlmodel-onetomany-multiref
into 4772a34 on master.

[sheinbergon]

I added 2 comments that are mostly cosmetic. Juding by the test, looks like it does what it's supposed to do. Very nice code cleanup

Approved. Do with the comments as you see fit

[sheinbergon]

Just put the new changes in their own dedicated block

[sheinbergon]

Approved again. Resolve the comments as you see fit

[agronholm]

I could do another PR for that migration away from Optional.

[sheinbergon]

I could do another PR for that migration away from Optional.

Sounds great.

[agronholm]

I hit a wrinkle: KeyError: 'SimpleContainers | None' <- this works with 'Optional[SimpleContainers]'. I could try to add from __future__ import annotations but I don't know yet how that will mesh with SQLModel (Pydantic historically reacted badly to deferred annotations).

[agronholm]

I guess they must've made it work since Python 3.14 has that on by default.

[agronholm]

Yeah, this is a no go: sqlalchemy.exc.InvalidRequestError: When initializing mapper Mapper[OtherItems(other_items)], expression 'SimpleOnetoone | None' failed to locate a name ('SimpleOnetoone | None'). If this is a class name, consider adding this relationship() to the <class 'OtherItems'> class after both dependent classes have been defined.

[agronholm]

One would think this stupid issue had been fixed by now but I guess not.

[sheinbergon]

Yeah, this is a no go: sqlalchemy.exc.InvalidRequestError: When initializing mapper Mapper[OtherItems(other_items)], expression 'SimpleOnetoone | None' failed to locate a name ('SimpleOnetoone | None'). If this is a class name, consider adding this relationship() to the <class 'OtherItems'> class after both dependent classes have been defined.

Well, you gave it a try

[agronholm]

Did you want to get something else into the final release?

[sheinbergon]

Did you want to get something else into the final release?

I wanted to run a manual test on the enum arrays before proceeding to 4.0.0 GA. I'll get to it today / tomorrow, and we can proceed to the final release