如何将 JSON 数组添加到 DRF 响应答案

【问题标题】：How to Add JSON Array to DRF Response如何将 JSON 数组添加到 DRF 响应
【发布时间】：2020-02-13 21:53:56
【问题描述】：

我有一个返回这个的 DRF ListAPIView：

count: 35652
next: "https://platform/events/?format=json&page=2"
previous: null
results: (50) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}]
__proto__: Object

我需要向视图或序列化程序添加什么来返回它？

count: 35652
next: "https://platform/events/?format=json&page=2"
previous: null
results: (50) [{…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}, {…}]
filter_data: ['filter element 1', 'filter element 2']
__proto__: Object

【问题讨论】：

标签： python django-rest-framework

【解决方案1】：

由于您使用 ListAPIView，您可以覆盖 list() 方法，请记住，此方法需要返回一个 Response 对象（在源代码中也是 take a look）（受 this SO answer 启发）。

   def list(self, request, *args, **kwargs):
        response = super().list(request, args, kwargs)

        # you can add the data that you need in the response
        response.data['filter_data'] = ['filter element 1', 'filter element 2']

        return response

另外，don't forget .data 包含已经序列化的数据。

【讨论】：