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Published on June 1, 2017, 12:01 a.m.
when you override get_object() method in model admin Django 1.8 version we will get error message, django get_object() takes exactly 3 arguments (4 given)
In Django 1.8 you need to pass attribute from_field
def get_object(self, request, object_id, from_field=None):
obj = super(MyModelAdmin, self).get_object(request, object_id)
if obj is not None:
obj.myfield = obj.category.split("|")
return obj