1# Imports 

2 

3from django.contrib import admin 

4 

5# Exports 

6 

7__all__ = ( 

8 "BasePrimaryAdmin", 

9) 

10 

11# Models 

12 

13 

14class BasePrimaryAdmin(admin.ModelAdmin): 

15 """Add ``is_primary`` to fields and list display/filter.""" 

16 

17 def get_fields(self, request, obj=None): 

18 a = super(BasePrimaryAdmin, self).get_fields(request, obj=obj) 

19 a.append("is_primary") 

20 return a 

21 

22 def get_list_display(self, request): 

23 a = super(BasePrimaryAdmin, self).get_list_display(request) 

24 a.append("is_primary") 

25 return a 

26 

27 def get_list_filter(self, request): 

28 a = super(BasePrimaryAdmin, self).get_list_display(request) 

29 a.append("is_primary") 

30 return a