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Total count


Is totalCount not implemented on Relay? #162



https://github.com/graphql-python/graphene-django/issues/162


The solution worked for me.

Because this is scensial to paginate, I've done it as a Mixin to add it to multiple DjangoObjectType like this:

class TotalCountMixin(ObjectType):
    @classmethod
    def get_connection(cls):
        class CountableConnection(relay.Connection):
            total_count = Int()

            class Meta:
                name = '{}Connection'.format(cls._meta.name)
                node = cls

            @staticmethod
            def resolve_total_count(root, args, context, info):
                return root.length

        return CountableConnection

Then I added it to the DjangoObjectType, in your case it would be:

class ProductNode(DjangoObjectType, TotalCountMixin):
    class Meta:
        model = Product
        filter_fields = {
            'name': ['exact', 'icontains', 'istartswith'],
        }
        interfaces = (relay.Node, )

Test it!