I want to add a filter in an admin changelist by a property of a foreign key, e.g.
class Address(model.Models): street = models.CharField(max_length=25) city = models.CharField(max_length=25) country = models.CharField(max_length=25) class Customer(models.Model): name = models.CharField(max_length=25) address = models.ForeignKey(Address)
Let's say in the Customer admin changelist I want to show a filter by city and country (so show me all customers in a particular country or city).
But the standard list_filter() functionality seems to only allow filtering by fields directly on the model and not on any of its foreign key. I've tried:
list_filter = ("address__country",)
list_filter = ("address.country",)
but I always get the same type of error:
'address__country' is not a callable or an attribute
Any suggestions would be welcome. Is there some special naming convention/syntax to allow filtering on FK properties?
See https://code.djangoproject.com/ticket/3400 . It works ok in django 1.3 :)
class Room(models.Model): house = models.ForeignKey(House) def __unicode__(self): return self.house.town.name class Booking(models.Model): room = models.ForeignKey(Room) def __unicode__(self): return self.room.house.town.name class BookingOpts(admin.ModelAdmin): list_filter = ('room__house__town',) raw_id_admin = ('room', ) admin.site.register(Town) admin.site.register(House) admin.site.register(Room) admin.site.register(Booking, BookingOpts)