#35827: Model subclass with __init_subclass__ doesn't get correct _meta instance
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Reporter: Ben Beecher | Type: Uncategorized
Status: new | Component: Uncategorized
Version: 5.0 | Severity: Normal
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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When defining and using a model mixin like so:
```
class ModelMixin(Model):
class Meta:
abstract = True
def __init_subclass__(cls) -> None:
super().__init_subclass__()
breakpoint()
cls._my_setup_func()
class TestModel(ModelMixin):
name = models.CharField(max_length=100)
```
The __init_subclass__ call will be first called when the class is created
here:
https://github.com/django/django/blob/main/django/db/models/base.py#L120
However the meta is attached here:
https://github.com/django/django/blob/main/django/db/models/base.py#L143
So during the __init_subclass call you will have the superclass' meta
object if you try to access it.
--
Ticket URL: <https://code.djangoproject.com/ticket/35827>
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