如何在 Django Rest Framework JSON API 中生成 JSON-API 数据属性与结果属性？

Question

我有一个使用 Django Rest Framework JSON API 的 django 1.9.2 项目：

https://github.com/django-json-api/django-rest-framework-json-api:

我的视图如下所示：

class QuestionViewSet(viewsets.ReadOnlyModelViewSet):
    """
    API endpoint that allows questions and answers to be read.
    """
    resource_name = 'questions'
    queryset = Question.objects.all()
    serializer_class = QuestionSerializer
    renderers = renderers.JSONRenderer
    parsers = parsers.JSONParser

典型响应如下所示：

{"links": {"first": "http://testserver/api/v1/coaches?page=1", "last": "http://testserver/api/v1/coaches?page=1", "next": null, "prev": null}, "results": [{"id": 1, "created": "2016-02-11T02:41:22.569000Z", "updated": null, "deleted": null, "uuid": "0473c709-994f-465b-989e-407c623f365f", "user": {"type": "User", "id": "2"}}, {"id": 2, "created": "2016-02-11T02:41:46.853000Z", "updated": null, "deleted": null, "uuid": "36e19c0e-bda6-4bd7-bc73-374a6fc509d6", "user": {"type": "User", "id": "3"}}, {"id": 3, "created": "2016-02-11T02:42:05.419000Z", "updated": null, "deleted": null, "uuid": "d0798ff4-3be2-4cf3-81ac-edf8049eb075", "user": {"type": "User", "id": "4"}}], "meta": {"pagination": {"page": 1, "pages": 1, "count": 3}}}

我希望输出具有数据属性而不是结果属性。如何告诉 DRF JSON API 输出此处描述的样式：

http://jsonapi.org/format/

Answer 1

我的问题是我在视图中有一个视图集派生类，如下所示：

class QuestionViewSet(viewsets.ReadOnlyModelViewSet):
    """
    API endpoint that allows questions and answers to be read.
    """
    resource_name = 'questions'
    queryset = Question.objects.all()
    serializer_class = QuestionSerializer
    renderers = renderers.JSONRenderer
    parsers = parsers.JSONParser

这是错误。 renderers 和 parser 属性实际上分别是 renderer_classes 和 parser_classes。此外，这些属性的右值是 tuples，而不是 singletons。因此：

class QuestionViewSet(viewsets.ReadOnlyModelViewSet):
    """
    API endpoint that allows questions and answers to be read.
    """
    resource_name = 'questions'
    queryset = Question.objects.all()
    serializer_class = QuestionSerializer
    renderer_classes = (renderers.JSONRenderer,)
    parser_classes = (parsers.JSONParser,)

在此更改之后，JSON API 响应基本正确：

{"data":{"type":"questions","id":"1","attributes":{"created":"2016-02-10T04:28:50.742000Z","updated":null,"deleted":null,"uuid":"eddfc27d-2677-49e5-bd37-92fecea340bd","text":"Are you dizzy?"},"relationships":{"answers":{"data":[{"type":"Answer","id":"1"},{"type":"Answer","id":"2"},{"type":"Answer","id":"3"}]},"members":{"data":[{"type":"Member","id":"1"},{"type":"Member","id":"2"},{"type":"Member","id":"3"},{"type":"Member","id":"4"}],"meta":{"count":4}}}}}

Answer 2

我相信您必须创建一个自定义渲染器才能处理您的项目。这是来自rest-framework renderers的指南

我可以将您指向 json 模板的 Response 类中的行，以进行快速而肮脏的修复： Response(), line 35