rest_framework中的serializers，Response，APIView

from django.shortcuts import render,HttpResponse
# Create your views here.
from .models import *
from django.views import View
import json
from rest_framework import serializers
from rest_framework.response import Response
#为queyset做序列化
class PublisherSerializers(serializers.Serializer):
    name = serializers.CharField()
    email = serializers.CharField()
# class BookSerializers(serializers.Serializer):
#     title = serializers.CharField()
#     price = serializers.IntegerField()
#     pub_date = serializers.DateField()
#     publisher = serializers.CharField(source="publisher.email")
#     # authors = serializers.CharField(source="authors.all") #多对多不好用
#     authors =serializers.SerializerMethodField()
#     def get_authors(self,obj):
#         temp = []
#         for obj in obj.authors.all():
#             temp.append(obj.name)
#             print(temp)
#         return temp
class BookModelSerializers(serializers.ModelSerializer):
    class Meta:
        model =Book
        fields = "__all__"
        #自定义显示字段 可以不不加就显示全部  用自定义的话post请求要重写create方法
    publisher = serializers.CharField(source="publisher.pk",read_only=True)
    # authors = serializers.CharField(source="authors.all") #多对多不好用
    # authors =serializers.SerializerMethodField()
    # def get_authors(self,obj):
    #     temp = []
    #     for obj in obj.authors.all():
    #         temp.append(obj.name)
    #         print(temp)
    #     return temp
    def create(self, validated_data):
        print("validated_data",validated_data)
        book = Book.objects.create(title=validated_data["title"],price=validated_data["price"],pub_date=validated_data["pub_date"],publisher_id=validated_data["publisher"]["pk"])
        book.authors.add(*validated_data["authors"])
        return book
class AuthorModelSerializers(serializers.ModelSerializer):
    class Meta:
        model = Author
        fields = "__all__"
from rest_framework.views import APIView
class PublishView(APIView):
    def get(self,request):
        print(request.GET)
        return HttpResponse(123)
    def post(self,request):
        print(request.body)
        print(request.POST)
        return HttpResponse("789")
class BookView(APIView):
    def get(self,request):
        book_list = Book.objects.all()
        # bs = BookSerializers(book_list,many=True)
        bs = BookModelSerializers(book_list, many=True)
        print(bs.data)
        return Response(bs.data)
    def post(self,request):
        bs = BookModelSerializers(data=request.data)
        if bs.is_valid():
            bs.save()
            return Response(bs.data)
        else:
            return Response(bs.errors)
class BookDetailView(APIView):
    def get(self,request,id):
        book = Book.objects.filter(pk=id).first()
        bs = BookModelSerializers(book)
        return Response(bs.data)
    def put(self,request,id):
        book = Book.objects.filter(pk=id).first()
        bs = BookModelSerializers(book,data=request.data)
        if bs.is_valid():
            bs.save()
            return Response(bs.data)
        else:
            return Response(bs.errors)
    def delete(self,request,id):
        Book.objects.filter(pk=id).delete()
        return Response()
class AuthorView(APIView):
    def get(self,request):
        author_list = Author.objects.all()
        authorseria = AuthorModelSerializers(author_list,many=True)
        return Response(authorseria.data)
    def post(self,request):
        authorseria = AuthorModelSerializers(data=request.data)
        if authorseria.is_valid():
            authorseria.save()
            return Response(authorseria.data)
        else:
            return Response(authorseria.errors)
class AuthorDetailView(APIView):
    def get(self,request,pk):
        author_obj = Author.objects.filter(pk=pk).first()
        author_seria = AuthorModelSerializers(author_obj)
        return Response(author_seria.data)
    def put(self,request,pk):
        author_obj = Author.objects.filter(pk=pk).first()
        author_seria = AuthorModelSerializers(author_obj,data=request.data)
        if author_seria.is_valid():
            author_seria.save()
            return Response(author_seria.data)
        else:
            return Response(author_seria.errors)
    def delete(self,request,pk):
        Author.objects.filter(pk=pk).first().delete()
        return Response()