Question

我的工作形式必须使用django rest框架序列化程序类作为表单。让我向您展示一些代码，以便您更好地理解。

在我的模型中，我有一个动态返回序列化程序类的属性：

@property
def content_serializer_class(self):
    backend_module = self.backend_module

    if backend_module == "youtube":
        return YoutubeSerializer
    elif backend_module == "googleplay":
        return GoogleplaySerializer
    elif backend_module == "bellone":
        return BelloneSerializer
    elif backend_module == "rogersvod":
        return RogersvodSerializer

然后我有了观点：

class ContentCreateView(LoginRequiredMixin, PermissionRequiredMixin, APIView):
    renderer_classes = [TemplateHTMLRenderer]
    template_name = 'delivery/content_form.html'
    permission_required = 'delivery.change_delivery'

    def get(self, request, delivery_id):
        delivery = get_object_or_404(Delivery, pk=delivery_id,owner=self.request.user)
        if not delivery.can_change:
            raise Http404

        return Response({'serializer': delivery.content_serializer_class, 'delivery': delivery})

    def post(self, request, delivery_id):
        delivery = get_object_or_404(Delivery, pk=delivery_id,owner=self.request.user)
        if not delivery.can_change:
            raise Http404

        serializer = delivery.content_serializer_class(data=request.data)

        if not serializer.is_valid():
            return Response({'serializer': delivery.content_serializer_class, 'delivery': delivery})

        print 'serializer', serializer.data

        nextUrl = self.request.POST.get("next", "")
        if nextUrl:
            return redirect(nextUrl)
        else:
            return redirect(reverse('delivery:delivery-detail', args=[delivery_id]))

我的模板：

<form role="form" id="form-content" class="form-horizontal" method="post">
    {% csrf_token %}
    <input type="hidden" id="id-next" name="next" value="" />
    {% render_form serializer template_pack='rest_framework/horizontal' %}            
</form>

我跟随this guide。

问题是，当我尝试从序列化程序（serializer.data）获取json时，它是空的。验证工作正常，表单正确呈现，但json数据为空。

我错过了什么？谢谢你的帮助。

Answer 1

格式通常是

  mymodel = MyModel.objects.get(id=model_id) 
  serializer = MyModelSerializer(mymodel,many=False) # for single object

所以在课堂上它必须是：

def content_serializer_class(self):
    backend_module = self.backend_module

    if backend_module == "youtube":
         return YoutubeSerializer(self,many=False)

    elif backend_module == "googleplay":
        return GoogleplaySerializer(self,many=False)

    elif backend_module == "bellone":
        return BelloneSerializer(self,many=False)

elif backend_module == "rogersvod":
    return RogersvodSerializer(self,many=False)

Django Rest Framework - 为什么serializer.data为空

1 个答案: