python - Django Rest Framework 嵌套关系

Question

我是使用 Django 的新手，我需要你的帮助

所以，我创建了一个这样的模型

模型.py

from django.db import models

# Create your models here.
class Pegawai(models.Model):
    name = models.CharField(max_length=60)
    alias = models.CharField(max_length=60)
    def __str__(self):
        return self.name

class Barang(models.Model):
    pegawai = models.ForeignKey(Pegawai,on_delete=models.CASCADE,related_name='barangs',)
    nama_barang = models.CharField(max_length=60)
    harga_barang = models.CharField(max_length=60)
    def __str__(self):
        return self.pegawai.name

我的序列化器：

序列化程序.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',
                )

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

我的看法：

视图.py

from rest_framework import viewsets

from .serializers import PegawaiSerializer,BarangSerializer
from .models import Pegawai,Barang

class BarangViewSet(viewsets.ModelViewSet):
    queryset = Barang.objects.all().order_by('nama_barang')
    serializer_class = BarangSerializer

class PegawaiViewSet(viewsets.ModelViewSet):
    queryset = Pegawai.objects.all().order_by('name')
    serializer_class = PegawaiSerializer

结果：

{
    "id": 5,
    "name": "Ryan",
    "alias": "R",
    "barangs": [
        {
            "pegawai": 5,
            "nama_barang": "burjo",
            "harga_barang": "1234"
        },

问题：如何将 pegawai 字段从 id 更改为 name？像这样：

{
    "id": 5,
    "name": "Ryan",
    "alias": "R",
    "barangs": [
        {
            "pegawai": Ryan,
            "nama_barang": "burjo",
            "harga_barang": "1234"
        },

我已经搜索了一些解决方案，但没有任何效果，我不知道问题出在哪里，所以我需要你的指导。干杯。

标签： pythondjangodjango-rest-framework

Answer 1

使用序列化程序.CharField。

class BarangSerializer(serializers.ModelSerializer):
    pegawali=serializers.CharField(source="pegawali.name")
    class Meta:
        model = Barang
        fields = (
            'pegawai', 
            'nama_barang',
            'harga_barang',
            )