1 圖書的5個介面寫完（使用序列化元件）

urls.py

from django.contrib import admin

from django.urls import path, re_path

from app01 import views

urlpatterns = [

    path('admin/', admin.site.urls),

    re_path('books/(?P<pk>\d+)', views.BookView.as_view()),

    path('',views.BooksView.as_view())

]

views.py

from django.shortcuts import render
 

from rest_framework.views import APIView,Response

from app01.models import Book

from app01.ser import BookSerializer

from django.http.response import JsonResponse

from app01.utils import MyResponse

# Create your views here.

class BookView(APIView):

    def get(self,request,pk):

        book = Book.objects.filter(nid=pk).first()
 

        book_ser = BookSerializer(book)

        return Response(book_ser.data)

    def put(self,request,pk):

        response_msg = {'status':100,'msg':'成功'}

        book = Book.objects.filter(nid=pk).first()

        boo_ser = BookSerializer(instance=book,data=request.data)

        if boo_ser.is_valid():
 

            boo_ser.save()

            response_msg['data']=boo_ser.data

        else:

            response_msg['status'] = 101

            response_msg['msg'] = '資料校檢失敗'

            response_msg['data'] = boo_ser.errors

        return Response(response_msg)

    def delete(self,request,pk):

        response = MyResponse()

        ret = Book.objects.filter(nid=pk).delete()

        return Response(response.get_dict)

class BooksView(APIView):

    def get(self,request):

        response = MyResponse()

        books = Book.objects.all()

        book_ser = BookSerializer(books,many=True)

        response.data = book_ser.data

        return Response(response.get_dict)

    def post(self,request):

        response_msg = {'status':100,'msg':'成功'}

        book_ser = BookSerializer(data=request.data)

        if book_ser.is_valid():

            book_ser.save()

            response_msg['data'] = book_ser.data

        else:

            response_msg['status'] = 102

            response_msg['msg'] = '校檢資料失敗'

            response_msg['status'] = book_ser.errors

        return Response(response_msg)

modles.py

from django.db import models

# Create your models here.

class Book(models.Model):

    nid = models.AutoField(primary_key=True)

    name = models.CharField(max_length=64)

    price = models.DecimalField(decimal_places=2,max_digits=6)

    author = models.CharField(max_length=32)

    publish = models.CharField(max_length=64)

app01下ser.py建立序列化類

from rest_framework import serializers

from app01.models import Book

class BookSerializer(serializers.Serializer):

    xxd = serializers.CharField(source='nid')

    name = serializers.CharField()

    price = serializers.CharField()

    author = serializers.CharField()

    publish = serializers.CharField()

    def create(self, validated_data):

        instance = Book.objects.create(**validated_data)

        return instance

    def update(self, instance, validated_data):

        instance.name = validated_data.get('name')

        instance.price = validated_data.get('price')

        instance.author = validated_data.get('author')

        instance.publish = validated_data.get('publish')

        instance.save()

        return instance

app01下utils.py建立MyResponse類返回字典

class MyResponse():

    def __init__(self):

        self.status = 100

        self.msg = '成功'

    @property

    def get_dict(self):

        return self.__dict__

if __name__ == '__main__':

    res = MyResponse()

    res.status = 101

    res.msg = '查詢失敗'

settings.py註冊djangorestframwork元件

INSTALLED_APPS = [

    'django.contrib.admin',

    'django.contrib.auth',

    'django.contrib.contenttypes',

    'django.contrib.sessions',

    'django.contrib.messages',

    'django.contrib.staticfiles',

    'app01.apps.App01Config',

    'rest_framework'

]

2 嘗試修改一下返回的欄位名字

在序列化類BookSerializer的欄位中新增引數source