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Trying to change a polymorphic model I get this error:
'NoneType' object has no attribute 'get_list_display'
The error happens in method get_model_queryset of module utils.
The error is here:
model_admin = admin_site._registry.get(model)
model_admin is None because a child model in polymorphic could be not explicitly registered (you can register a parent model and specify in a PolymorphicParentModelAdmin class all child that it's possible to manage) .
No problems using the default django admin.
Trying to change a polymorphic model I get this error:
The error happens in method get_model_queryset of module utils. The error is here:
model_admin is None because a child model in polymorphic could be not explicitly registered (you can register a parent model and specify in a PolymorphicParentModelAdmin class all child that it's possible to manage) . No problems using the default django admin.