🐛 Move __tablename__ default from @declared_attr to metaclass#1821
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estarfoo wants to merge 1 commit intofastapi:mainfrom
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🐛 Move __tablename__ default from @declared_attr to metaclass#1821estarfoo wants to merge 1 commit intofastapi:mainfrom
__tablename__ default from @declared_attr to metaclass#1821estarfoo wants to merge 1 commit intofastapi:mainfrom
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The `SQLModel` base class declared `__tablename__` both as a `ClassVar` and as a `@declared_attr` method. Some type checkers (pyright) see the descriptor type from `@declared_attr`, so setting `__tablename__ = "my_table"` in a subclass is rejected as a type mismatch, even though it works at runtime. Replace the `@declared_attr` method with a default set in `SQLModelMetaclass.__new__` via `dict_used`, before class creation. Fixes fastapi#98. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Move the default
__tablename__from a@declared_attrmethod toSQLModelMetaclass.__new__, where it is set in the class dict before class creation, alongside the existing setup.This resolves the type-level contradiction between the
ClassVar[str | Callable]declaration and the@declared_attrdescriptor, letting__tablename__ = "my_table"work without# type: ignorefor pyright.Tests added for default name, explicit override, inheritance, and non-table models.
Fixes #98.
This is split out from #1820, dropping those changes which would be resolved by #1345 or #1806.