Django Rest框架关系 [英] Django Rest Framework Relationship

问题描述

（之前的问题： Django Rest Framework嵌套关系）

我已经这样制作了序列化器：

I've made serializer like this:

serializers.py

serializers.py

from rest_framework import serializers, fields

from .models import Pegawai,Barang


class BarangSerializer(serializers.ModelSerializer):
    class Meta:
        model = Barang
        fields = (
                'pegawai', 
                'nama_barang',
                'harga_barang',
                )

    def to_representation(self, instance):
        rep = super().to_representation(instance)
        rep['pegawai'] = instance.pegawai.name
        return rep

class PegawaiSerializer(serializers.ModelSerializer):
    barangs = BarangSerializer(read_only=True, many=True)
    class Meta:
        model = Pegawai
        fields = (
                'id',
                'name', 
                'alias',
                'barangs',
                )

结果：

Results :

{  
"pegawai": "Ryan",
    "nama_barang": "burjo",
    "harga_barang": "1234"
},

以及在发布数据时如何在barang API中获得如下结果：

And How to make the result like this in the barang API when posted the data:

{
    "pegawai": {"id" : 1,
        "name" : "Ryan",
        "alias" : "R"}
    "nama_barang": "burjo",
    "harga_barang": "1234"
},

请帮助，加油。

推荐答案

编写额外的序列化器并将其连接到 to_representation（..） 方法，

Write extra serializer and wire-up it in to_representation(..) method,

class PegawaiShortSerializer(serializers.ModelSerializer):
    class Meta:
        model = Pegawai
        fields = (
            'id',
            'name',
            'alias',
        )


class BarangSerializer(serializers.ModelSerializer):
    class Meta:
        model = Barang
        fields = (
            'pegawai',
            'nama_barang',
            'harga_barang',
        )

    def to_representation(self, instance):
        rep = super().to_representation(instance)
        rep['pegawai'] = PegawaiShortSerializer(instance.pegawai).data
        return rep

这篇关于Django Rest框架关系的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！