Registering types for interfaces

Before I go too far down this rabbithole(I learn from my mistakes), thought I’d ask if there is anything special I need to do to register types that are only used from an interface?

My scenario:

class DjangoObjectInterfaceMeta(DjangoObjectTypeMeta, InterfaceMeta):
    pass


class Customer(graphene.Interface):
    id = graphene.Int()
    email = graphene.String()
    name = graphene.String()
    first_name = graphene.String()
    last_name = graphene.String()
    phone = graphene.String()
    receive_notifications = graphene.Boolean()
    receive_update_emails = graphene.Boolean()
    shipping_destinations = graphene.List(ShippingDestinationType)
    payment_methods = graphene.List(PaymentMethodType)

    class Meta:
       abstract = True

    @classmethod
    def _resolve_type(cls, schema, instance, *args):
        if instance.is_anonymous():
            return AnonymousUserType.internal_type(schema)
        return UserType.internal_type(schema)


class AnonymousUserType(Customer):
    pass


class UserType(six.with_metaclass(DjangoObjectInterfaceMeta, Customer)):
    name = graphene.String()

    class Meta:
        model = User
        only_fields = ['id', 'email', 'name', 'first_name', 'last_name', 'phone', 'receive_notifications',
                       'receive_update_emails', 'shipping_destinations', 'payment_methods']

    def resolve_name(self, args, info):
        return self.get_full_name()

    def resolve_shipping_destinations(self, args, info):
        return self.shipping_destinations.all()

    def resolve_payment_methods(self, args, info):
        return self.payment_methods.all()

When I am logged in, I get the user type returned fine. When I am not logged in, I get a Runtime Object type \"AnonymousUserType\" is not a possible type for \"Customer\". returned. That is not true. If I modify graphene to pass types down to the init of GraphQLSchema then it works for anonymous(but breaks other things).

Both of these types get registered to my schema with a register call. I suspect this is because UserType is used elsewhere in my schema and so gets an additional something setup for it, while AnonymousUserType is just used here.

Anyone have any pointers?

[danielfarrell]

Hey @alexche8, here is a gist of the code I used to make it work: https://gist.github.com/danielfarrell/87561b8930d917f339aaff0ea8245231

[syrusakbary]

It means that the AnonymousUserType is not registered in the schema, as there is no direct pointer from a field to it, and therefore the only available ObjectType for Customer is UserType.

You can solve by decorating the class, like:

@schema.register
class AnonymousUserType(Customer):
    pass

Hope it helps! Please reopen the issue if not.