上一部分代码在序列化部分

类继承顺序

############### mixins.py ################
# 类中调用的方法均在 GenericAPIView 类中实现，所以下列类需要结合 GenericAPIView 使用
class ListModelMixin(object)                     # 查看继承类def list(self, request, *args, **kwargs)class CreateModelMixin(object)                   # 添加继承类def create(self, request, *args, **kwargsclass RetrieveModelMixin(object)                 # 查看单条继承类def retrieve(self, request, *args, **kwargs)class UpdateModelMixin(object)                   # 更新单条继承类def update(self, request, *args, **kwargs)class DestroyModelMixin(object)                  # 删除单条继承类def destroy(self, request, *args, **kwargs)############### generics.py ###############
class GenericAPIView(views.APIView)pass   # 这个是懒得写，主要结合上边的使用class ListCreateAPIView(mixins.ListModelMixin,mixins.CreateModelMixin,GenericAPIView):def get(self, request, *args, **kwargs):return self.list(request, *args, **kwargs)def post(self, request, *args, **kwargs):return self.create(request, *args, **kwargs)class RetrieveUpdateAPIView(mixins.RetrieveModelMixin,mixins.UpdateModelMixin,GenericAPIView):def get(self, request, *args, **kwargs):return self.retrieve(request, *args, **kwargs)def put(self, request, *args, **kwargs):return self.update(request, *args, **kwargs)def patch(self, request, *args, **kwargs):return self.partial_update(request, *args, **kwargs)
)############### viewsets.py ###############
class ModelViewSet(mixins.CreateModelMixin,mixins.RetrieveModelMixin,mixins.UpdateModelMixin,mixins.DestroyModelMixin,mixins.ListModelMixin,GenericViewSet)pass # 这个是真passclass GenericViewSet(ViewSetMixin, generics.GenericAPIView):pass # 这个也是真passclass ViewSetMixin(object):def as_view(cls, actions=None, **initkwargs)def view(request, *args, **kwargs):def initialize_request(self, request, *args, **kwargs):

 

 

不使用使用混合（mixins）

自己重构get，put等函数，全部手写，代码重复率很高：

from rest_framework.views import APIView
from rest_framework.response import Response
from .models import *
from django.shortcuts import HttpResponse
from django.core import serializers
from rest_framework import serializersclass BookSerializers(serializers.ModelSerializer):class Meta:model=Bookfields="__all__"#depth=1class PublshSerializers(serializers.ModelSerializer):class Meta:model=Publishfields="__all__"depth=1class BookViewSet(APIView):def get(self,request,*args,**kwargs):book_list=Book.objects.all()# 文本类型，这个是和上面的连接有关，后面的参数context,HyperlinkedIdentityField,这个是设置了连接的时候，进行的操作bs=BookSerializers(book_list,many=True,context={'request': request}) return Response(bs.data)def post(self,request,*args,**kwargs):print(request.data)bs=BookSerializers(data=request.data,many=False)if bs.is_valid():print(bs.validated_data)bs.save()return Response(bs.data)else:return HttpResponse(bs.errors)class BookDetailViewSet(APIView):def get(self,request,pk):book_obj=Book.objects.filter(pk=pk).first()bs=BookSerializers(book_obj,context={'request': request})return Response(bs.data)def put(self,request,pk):book_obj=Book.objects.filter(pk=pk).first()bs=BookSerializers(book_obj,data=request.data,context={'request': request})if bs.is_valid():bs.save()return Response(bs.data)else:return HttpResponse(bs.errors)class PublishViewSet(APIView):def get(self,request,*args,**kwargs):publish_list=Publish.objects.all()bs=PublshSerializers(publish_list,many=True,context={'request': request})return Response(bs.data)def post(self,request,*args,**kwargs):bs=PublshSerializers(data=request.data,many=False)if bs.is_valid():# print(bs.validated_data)bs.save()return Response(bs.data)else:return HttpResponse(bs.errors)class PublishDetailViewSet(APIView):def get(self,request,pk):publish_obj=Publish.objects.filter(pk=pk).first()bs=PublshSerializers(publish_obj,context={'request': request})return Response(bs.data)def put(self,request,pk):publish_obj=Publish.objects.filter(pk=pk).first()bs=PublshSerializers(publish_obj,data=request.data,context={'request': request})if bs.is_valid():bs.save()return Response(bs.data)else:return HttpResponse(bs.errors)

第一代：继承mixin类编写视图

继承mixins的ListModelMixin，CreateModelMixin等类

from rest_framework import mixins
from rest_framework import genericsclass BookViewSet(mixins.ListModelMixin,   # 查看继承类mixins.CreateModelMixin, # 添加继承类generics.GenericAPIView):queryset = Book.objects.all()          # 数据库serializer_class = BookSerializers     # 序列化类def get(self, request, *args, **kwargs):return self.list(request, *args, **kwargs)def post(self, request, *args, **kwargs):return self.create(request, *args, **kwargs)class BookDetailViewSet(mixins.RetrieveModelMixin,  # 查看单条继承类mixins.UpdateModelMixin,        # 更新单条继承类mixins.DestroyModelMixin,       # 删除单条继承类generics.GenericAPIView):queryset = Book.objects.all()serializer_class = BookSerializersdef get(self, request, *args, **kwargs):return self.retrieve(request, *args, **kwargs)def put(self, request, *args, **kwargs):return self.update(request, *args, **kwargs)def delete(self, request, *args, **kwargs):return self.destroy(request, *args, **kwargs)

第二代：使用通用的基于类的视图

通过使用mixin类，我们使用更少的代码重写了这些视图，但我们还可以再进一步。REST框架提供了一组已经混合好（mixed-in）的通用视图，我们可以使用它来简化我们的views.py模块。

from rest_framework import mixins
from rest_framework import genericsclass BookViewSet(generics.ListCreateAPIView):queryset = Book.objects.all()serializer_class = BookSerializersclass BookDetailViewSet(generics.RetrieveUpdateDestroyAPIView):queryset = Book.objects.all()serializer_class = BookSerializersclass PublishViewSet(generics.ListCreateAPIView):queryset = Publish.objects.all()serializer_class = PublshSerializersclass PublishDetailViewSet(generics.RetrieveUpdateDestroyAPIView):queryset = Publish.objects.all()serializer_class = PublshSerializers

第三代：viewsets.ModelViewSet

urls.py:

url(r'^books/$', views.BookViewSet.as_view({"get":"list","post":"create"}),name="book_list"),
url(r'^books/(?P<pk>\d+)$', views.BookViewSet.as_view({'get': 'retrieve','put': 'update','patch': 'partial_update','delete': 'destroy'}),name="book_detail"),

views.py: 

class BookViewSet(viewsets.ModelViewSet):queryset = Book.objects.all()serializer_class = BookSerializers

终极版

urls.py同上

views.py

from rest_framework.routers import DefaultRouterrouter = DefaultRouter()                       # 实例化
router.register(r'school', views.SchoolView)   # 注册
urlpatterns += router.urls                     # 在urlpatterns中添加