python Django框架中的嵌套序列化器详解

django-admin startproject core
cd core

python manage.py startapp home

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "rest_framework",
    "home",
    "rest_framework.authtoken",
    
]

from rest_framework import serializers
from .models import *
from django.contrib.auth.models import User 
class CategorySerializer(serializers.ModelSerializer):
	class Meta:
		model = Category 
		fields = ['category_name',] 
class BookSerializer(serializers.ModelSerializer
	category = CategorySerializer() 
	
	class Meta:
		model = Book 
		fields = '__all__'
		depth =1

from django.db import models

class Category(models.Model):
	category_name = models.CharField(max_length=100)

class Book(models.Model):
	category = models.ForeignKey(Category, on_delete=models.CASCADE)
	book_title = models.CharField(max_length=100)

from django.contrib import admin
from .models import *
admin.site.register(Category)
admin.site.register(Book)

from django.shortcuts import render
from rest_framework.decorators import api_view
from rest_framework.response import Response
from .models import *
from .serializers import *
from rest_framework.views import APIView
from rest_framework.authtoken.models import Token
@api_view(['GET'])
def get_book(request):
	book_objs = Book.objects.all()
	serializer = BookSerializer(book_objs, many=True)
	return Response({'status': 200, 'payload': serializer.data})

from django.contrib import admin
from django.urls import path, include
from rest_framework.authtoken import views

urlpatterns = [
	path('', include('home.urls')),
	path("admin/", admin.site.urls),

]

from django.contrib import admin
from django.urls import path, include
from .views import *


urlpatterns = [
path('get-book/', get_book),

]

python3 manage.py makemigrations
python3 manage.py migrate

python3 manage.py runserver