DJ008 incorrectly reporting missing `__str__` method for abstract class with type annotations

[CarrotManMatt]

Summary

When a Django model class is marked as abstract the lack of a __str__ method is not flagged. This is correct behaviour.

from django.db import models

class Foo(models.Model)
    class Meta:
        abstract = True

When a type annotation is added to the meta class, the identification of the model being abstract is lost, so the DJ008 diagnostic incorrectly occurs.

from typing import ClassVar
from django.db import models
from django_stubs_ext.db.models import TypedModelMeta


class Foo(models.Model):
    class Meta(TypedModelMeta):
        abstract: ClassVar[bool] = True

Version

0.12.2

[ntBre]

Thanks for the report! I think we should also check for a Stmt::AnnAssign here:

ruff/crates/ruff_linter/src/rules/flake8_django/rules/model_without_dunder_str.rs

Lines 99 to 101 in 2f8bc9a

	let Stmt::Assign(ast::StmtAssign { targets, value, .. }) = element else {
	continue;
	};