Inline multiple one-to-one fields in Django admin

Question

I cannot get the admin module to inline two same field models in one-to-one relations. To illustrate it, I've made the following example, a model Person uses two addresses:

class Client(models.Model):
    # Official address
    official_addr = models.OneToOneField(Address, related_name='official')
    # Temporary address
    temp_addr = models.OneToOneField(Address, related_name='temp')

I'd like to enable adding persons through Django admin interface with both addresses inlined. So far I have this code for admin configuration:

class ClientInline(admin.StackedInline):
    model = Client
    fk_name = "official_addr"

class ClientInline2(admin.StackedInline):
    model = Client
    fk_name = "temp_addr"

class AddressAdmin(admin.ModelAdmin):
    inlines = [ClientInline,ClientInline2]

admin.site.register(Address, AddressAdmin)

It works perfectly for the first address, but with both addresses the interface is acting crazy - duplicating Client's fields instead of addresses. What I am doing wrong? It there a better way to have two same models inlined?

Answer 1

I can't understand what you mean about 'acting crazy' by duplicating Client's fields. That's exactly what you've asked it to do - you have two inlines, both referring to Client. If this isn't what you want, you'll need to define it the other way round.

Answer 2

Replace your admin with the following:

class ClientInline(admin.StackedInline):
    model = Client
    max_num = 1

class AddressAdmin(admin.ModelAdmin):
    inlines = [ClientInline]

admin.site.register(Address, AddressAdmin)