old_contents: from django.contrib import admin
  from currencies.models import Currency
  
  
  class CurrencyAdmin(admin.ModelAdmin):
      list_display = ("name", "is_default", "code", "symbol", "factor")
      search_fields = ("name", "code")
  
  admin.site.register(Currency, CurrencyAdmin)
  
new_contents: from django.contrib import admin
  from currencies.models import Currency
  
  
  class CurrencyAdmin(admin.ModelAdmin):
      list_display = ("name", "is_active", "is_base", "is_default", "code", "symbol", "factor")
      list_filter = ("is_active", )
      search_fields = ("name", "code")
  
  admin.site.register(Currency, CurrencyAdmin)
  
subject: Add is_active and is_base to the admin