Hello All,
I have a situation where I would like to combine two fields from two
abstract child classes into a parent class.
class A(model):
field = MyField()
class Meta:
abstract = True
class B(model):
field = MyField()
class Meta:
abstract = True
class C(A, B, model):
pass
It is stated explicitly in the documentation that this cannot be done,
but I'd like to know if that's necessarily true.
In a class decorator or metaclass which works up class C, the
following can be done:
fields = [f for f in cls._meta.fields if isinstance(f, MyField)]
keep_field = fields.pop()
for field in fields:
cls._meta.local_fields.remove(field)
del cls._meta._field_name_cache
This seems to work great for me. But I'd like to know what side
effects there might be in working up the internal machinery of the
model class this way. If this is not a good way to remove fields, is
there another?
thanks,
Justin
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