将对象列表作为字典返回，键作为对象 id 使用 django rest framerwork [英] Return list of objects as dictionary with keys as the objects id with django rest framerwork

问题描述

目前，我有一个 ListAPIView 返回对象字典列表:

<预><代码>[{ id: 1, ...},{ id: 2, ...},...]

我想将其更改为以 id 为键的字典格式:

<代码>{"1": { id: 1, ...},"2": { id: 2, ...},...}

如何使用 Django Rest Framework 以这种方式自定义输出?目前我正在重新格式化客户端，但我想做服务器端.

解决方案

我认为您可以在序列化程序中实现 to_representation 功能.

class MySerializer(serializers.Serializer):id = serializers.ReadOnlyField()field1 = serializers.ReadOnlyField()field2 = serializers.ReadOnlyField()def to_representation(self, data):res = super(MySerializer, self).to_representation(data)返回 {res['id']: res}# 也可以直接通过数据获取id# return {str(data.id): res}

Currently, I have a ListAPIView that returns a list of object dictionaries:

[
  { id: 1, ...},
  { id: 2, ...},
  ...
]

I would like to change this to be formatted as a dictionary with the id as the key:

{
  "1": { id: 1, ...},
  "2": { id: 2, ...},
  ...
}

How do I customize the output in this way using Django Rest Framework? Currently I am doing the re-formatting client side, but I would like to do it server side.

解决方案

I think you can implement the to_representation function in your Serializer.

class MySerializer(serializers.Serializer):
    id = serializers.ReadOnlyField()
    field1 = serializers.ReadOnlyField()
    field2 = serializers.ReadOnlyField()

    def to_representation(self, data):
        res = super(MySerializer, self).to_representation(data)
        return {res['id']: res}
        # or you can fetch the id by data directly
        # return {str(data.id): res}

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