S11 day 95 RestFramework 之 视图

1. 基于APIVIEW视图序列化

 

我们会发现两个类有好多重复的代码.所以我们引入了GenericAPIView (继承了APIView)

2.Generic ApiVIew和 ListModelMixin混合类

url路由配置

    url(r'school/$', views.SchoolView.as_view(), name='article-detail'),

from rest_framework.generics import GenericAPIView
from rest_framework.mixins import ListModelMixin

#学校视图（继承基础工具类阶段）
class SchoolView(GenericAPIView,ListModelMixin):
    '''
    GenericAPIView
    只需要配置
    queryset和serialize_class
    '''
    queryset = models.School.objects.all()
    serializer_class = app01_serializer.SchoolSerializer

    def get(self,request,*args,**kwargs):
        return self.list(request,*args,**kwargs)

输出结果：

 3. GenetricAPIView + RetrieveMixin  获取一条数据

    url(r'^comment/(?P<pk>\d+)/$', views.CommentDetailView.as_view()),

from rest_framework.mixins import RetrieveModelMixin

class CommentDetailView(GenericAPIView,RetrieveModelMixin):   #mixin混合类.

    queryset = models.Comment.objects.all()
    serializer_class =app01_serializer.CommentSerializer

    def get(self,request,pk):
        return self.retrieve(request,pk)

输出结果：

 4. GenericApiView + Mixin 增删改查.

# . 评论详情操作某一条数据

from rest_framework.mixins import RetrieveModelMixin,DestroyModelMixin,UpdateModelMixin

class CommentDetailView(GenericAPIView,RetrieveModelMixin,DestroyModelMixin,UpdateModelMixin):   #mixin混合类.

    queryset = models.Comment.objects.all()
    serializer_class =app01_serializer.CommentSerializer

　　查：
    def get(self,request,pk):
        return self.retrieve(request,pk)

　　删
    def delete(self,request,pk):
        return self.destroy(request,pk)

    def perform_destory(self,instance):
        instance.delete()
　　改
    def put(self,request,pk):
        return self.update(request,pk)

输出结果：

OK

5.  ListCreateAPIView和RetreveUpdateDestory

# 5 ListCreateAPIVIew 和RetreveUpdateDestory
from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView

class CommentView(ListCreateAPIView):       #获取所有 ， 添加.
    queryset = models.Comment.objects.all()
    serializer_class = app01_serializer.CommentSerializer

class CommentDetailView(RetrieveUpdateDestroyAPIView): #改，查和删除
    queryset = models.Comment.objects.all()
    serializer_class = app01_serializer.CommentSerializer

输出结果：

 6. GenericViewSet   （ ListCreateAPIView和RetreveUpdateDestory）

URL

    url(r'^comment/$', views.CommentView.as_view({
        "get":"list",
        "post":"create"
    })),

    url(r'^comment/(?P<pk>\d+)/$', views.CommentView.as_view({
        "get":"retrieve",
        "put":"update",
        "delete":"destroy"
    })),

from rest_framework.viewsets import ModelViewSet
class CommentViewSet(ModelViewSet):
    queryset = models.Comment.objects.all()
    serializer_class = app01_serializer.CommentSerializer