Use dataloader without DjangoConnectionField

[zry656565]

@syrusakbary
I just found #180 had made DjangoConnectionField compatible with Promise-based iterables, but wondered if there is a way to use dataloader without DjangoConnectionField (because our client is not Relay.)

[zry656565]

My code snippet:

# solve N+1 problem:
def question_batch_load_fn(keys):
    queryset = Question.objects.filter(id__in=keys)
    return Promise.resolve([
        [question for question in queryset if question.id == id]
        for id in keys
    ])


question_loader = DataLoader(question_batch_load_fn)


class TranslationNode(DjangoObjectType):
    # QuestionNode also inherits from DjangoObjectType
    question = graphene.Field(QuestionNode)

    def resolve_question(self, info):
        # the return value here is a promise, which isn't compatible
        return question_loader.load(self.question_id)

class Query(object):
    all_question_translations = graphene.Field(
        graphene.List(TranslationNode))

    def resolve_all_question_translations(self, info):
        return QuestionTranslation.objects.all()

[gotexis]

@zry656565 I want to apply this to my django implementation but encountered some problems. Did you find using just graphene instead of graphene_django easier?

[rishiC1206]

@zry656565 Did u find a way to do this ? I am also encoutering the same issue. I don't want to use DjangoConnectionField .