text: from django.contrib import admin
  
  from izi.core.loading import get_model
  
  
  class UserAddressAdmin(admin.ModelAdmin):
      readonly_fields = ('num_orders_as_billing_address', 'num_orders_as_shipping_address')
  
  
  class CountryAdmin(admin.ModelAdmin):
      list_display = [
          '__str__',
          'display_order'
      ]
      list_filter = [
          'is_shipping_country'
      ]
      search_fields = [
          'name',
          'printable_name',
          'iso_3166_1_a2',
          'iso_3166_1_a3'
      ]
  
  
  admin.site.register(get_model('address', 'useraddress'), UserAddressAdmin)
  admin.site.register(get_model('address', 'country'), CountryAdmin)
  