mirror of
https://github.com/task-17-lct/backend.git
synced 2024-11-27 22:23:44 +03:00
20 lines
578 B
Python
20 lines
578 B
Python
from django.contrib.contenttypes.models import ContentType
|
|
|
|
|
|
def all_subclasses(cls):
|
|
return set(cls.__subclasses__()).union(
|
|
[s for c in cls.__subclasses__() for s in all_subclasses(c)]
|
|
)
|
|
|
|
|
|
class SubclassesMixin:
|
|
@classmethod
|
|
def get_subclasses(cls):
|
|
content_types = ContentType.objects.filter(app_label=cls._meta.app_label)
|
|
models = [ct.model_class() for ct in content_types]
|
|
return [
|
|
model
|
|
for model in models
|
|
if (model is not None and issubclass(model, cls) and model is not cls)
|
|
]
|