Hi,
I would like to modify an attribute on a model based on the other
attributes when it is added from the admin or elsewhere.
For example:
Model A:
has FK to Model B
has FK to Model C
Model B:
has FK to Model C
When I create a Model A, I choose a Model B so I'd like the FK to Model C
to be set automatically based on the FK to Model C that already exists on
Model B.
I found the ``Model.clean`` method
(https://docs.djangoproject.com/en/dev/ref/models/instances/#django.db.models.Model.clean)
but it says that it is not invoked when you call your model’s save() method
so when is it invoked? I am a bit confused about the purpose of this method
then.
I tried the clean method and I was able to make it work after some issues
but I am wondering whether that's the best way to do it?
Thanks
Mike
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