rest-framework之视图

一 基本视图

二 mixin类和generice类编写视图

三 使用generics 下ListCreateAPIView,RetrieveUpdateDestroyAPIView

四 使用ModelViewSet

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一 基本视图

写一个出版社的增删查改resful接口

路由：

    url(r'^publish/$', views.PublishView.as_view()),
    url(r'^publish/(?P<pk>d+)/$', views.PublishDetailView.as_view()),

视图：

class PublishSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Publish
        fields='__all__'

class PublishView(APIView):

    def get(self, request):
        publish_list = models.Publish.objects.all()
        bs = PublishSerializers(publish_list, many=True)
        # 序列化数据

        return Response(bs.data)

    def post(self, request):
        # 添加一条数据
        print(request.data)

        bs=PublishSerializers(data=request.data)
        if bs.is_valid():
            bs.save()  # 生成记录
            return Response(bs.data)
        else:

            return Response(bs.errors)

class PublishDetailView(APIView):
    def get(self,request,pk):
        publish_obj=models.Publish.objects.filter(pk=pk).first()
        bs=PublishSerializers(publish_obj,many=False)
        return Response(bs.data)
    def put(self,request,pk):
        publish_obj = models.Publish.objects.filter(pk=pk).first()

        bs=PublishSerializers(data=request.data,instance=publish_obj)
        if bs.is_valid():
            bs.save() # update
            return Response(bs.data)
        else:
            return Response(bs.errors)
    def delete(self,request,pk):
        models.Publish.objects.filter(pk=pk).delete()

        return Response("")

 

二 mixin类和generice类编写视图

from rest_framework.mixins import CreateModelMixin,RetrieveModelMixin,ListModelMixin,UpdateModelMixin,DestroyModelMixin
from rest_framework.generics import GenericAPIView
class PublishView(ListModelMixin,CreateModelMixin,GenericAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

    def get(self, request):
        return self.list(request)

    def post(self, request):
        return self.create(request)

class PublishDetailView(RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin,GenericAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers
    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 delete(self,request,*args,**kwargs):
        return self.destroy(request,*args,**kwargs)

 

三 使用generics 下ListCreateAPIView,RetrieveUpdateDestroyAPIView

from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView
class PublishView(ListCreateAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

class PublishDetailView(RetrieveUpdateDestroyAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

 

四 使用ModelViewSet

路由：

    url(r'^publish/$', views.PublishView.as_view({'get':'list','post':'create'})),
    url(r'^publish/(?P<pk>d+)/$', views.PublishView.as_view({'get':'retrieve','put':'update','delete':'destroy'})),

视图：

from rest_framework.viewsets import ModelViewSet
class PublishView(ModelViewSet):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

###

publish 5个接口 4中方式 3种路由

路由

from django.conf.urls import url,include
from django.contrib import admin
from api import views

from rest_framework import routers
router=routers.DefaultRouter()
# 两个参数，一个是匹配的路由，一个是视图中写的CBV的类
router.register('publish',views.PublishView)

urlpatterns = [
    url(r'^admin/', admin.site.urls),

    # publish之第一二三种(自定义路由)
    # url(r'^publish/$', views.PublishView.as_view()),
    # url(r'^publish/(?P<pk>d+)/$', views.PublishDetailView.as_view()),
    # publish之第四种 #（半自动路由（视图类继承ModelViewSet））
    # url(r'^publish/$', views.PublishView.as_view({'get':'list','post':'create'})),
    # url(r'^publish/(?P<pk>d+)/$', views.PublishView.as_view({'get':'retrieve','put':'update','delete':'destroy'})),
    # url(r'',include(router.urls))  #（全自动路由（视图类继承ModelViewSet））

]

视图

# Publish之第一种
from api import models
from rest_framework.views import APIView
from rest_framework import serializers
from rest_framework.response import Response

class PublishSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Publish
        fields='__all__'

class PublishView(APIView):
    def get(self, request):
        Publish_list = models.Publish.objects.all()
        bs = PublishSerializers(Publish_list, many=True)
        return Response(bs.data)
    def post(self, request):
        bs=PublishSerializers(data=request.data)
        if bs.is_valid():
            bs.save()  # 生成记录
            return Response(bs.data)
        else:
            return Response(bs.errors)

class PublishDetailView(APIView):
    def get(self,request,pk):
        Publish_obj=models.Publish.objects.filter(pk=pk).first()
        bs=PublishSerializers(Publish_obj,many=False)
        return Response(bs.data)
    def put(self,request,pk):
        Publish_obj = models.Publish.objects.filter(pk=pk).first()
        bs=PublishSerializers(data=request.data,instance=Publish_obj)
        if bs.is_valid():
            bs.save() # update
            return Response(bs.data)
        else:
            return Response(bs.errors)
    def delete(self,request,pk):
        models.Publish.objects.filter(pk=pk).delete()
        return Response("删除成功")

# Publish之第二种
from api import models
from rest_framework import serializers
from rest_framework.mixins import CreateModelMixin,RetrieveModelMixin,ListModelMixin,UpdateModelMixin,DestroyModelMixin
from rest_framework.generics import GenericAPIView

class PublishSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Publish
        fields='__all__'

class PublishView(ListModelMixin,CreateModelMixin,GenericAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

    def get(self, request):
        return self.list(request)

    def post(self, request):
        return self.create(request)

class PublishDetailView(RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin,GenericAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers
    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 delete(self,request,*args,**kwargs):
        return self.destroy(request,*args,**kwargs)
        

# Publish之第三种
from api import models
from rest_framework import serializers
from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView

class PublishSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Publish
        fields='__all__'

class PublishView(ListCreateAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

class PublishDetailView(RetrieveUpdateDestroyAPIView):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers        
    
    
# Publish之第四种
from api import models
from rest_framework import serializers
from rest_framework.viewsets import ModelViewSet

class PublishSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Publish
        fields='__all__'

class PublishView(ModelViewSet):
    queryset=models.Publish.objects.all()
    serializer_class=PublishSerializers

book 5个接口 4中方式 2种路由

路由

    # book之第一二三种
    url(r'^book/$', views.BookView.as_view()),
    url(r'^book/(?P<pk>d+)/$', views.BookDetailView.as_view()),
    # book之第四种
    # url(r'^book/$', views.BookView.as_view({'get':'list','post':'create'})),
    # url(r'^book/(?P<pk>d+)/$', views.BookView.as_view({'get':'retrieve','put':'update','delete':'destroy'})),

视图

# book之第一二三种
# url(r'^book/$', views.BookView.as_view()),
# url(r'^book/(?P<pk>d+)/$', views.BookDetailView.as_view()),
# book之第四种
# url(r'^book/$', views.BookView.as_view({'get':'list','post':'create'})),
# url(r'^book/(?P<pk>d+)/$', views.BookView.as_view({'get':'retrieve','put':'update','delete':'destroy'})),

# book之第一种
from api import models
from rest_framework.views import APIView
from rest_framework import serializers
from rest_framework.response import Response

# class AuthorSerializer(serializers.ModelSerializer):
#     class Meta:
#         model=models.Author
#         fields='__all__'

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Book
        fields='__all__'
    # publish = serializers.SerializerMethodField()
    # def get_publish(self, obj):
    #     return obj.publish.name
    # authors = serializers.SerializerMethodField()
    # def get_authors(self, obj):
    #     ret = obj.authors.all()
    #     ss = AuthorSerializer(ret, many=True)
    #     return ss.data

class BookView(APIView):
    def get(self, request):
        Book_list = models.Book.objects.all()
        Books_json = BookSerializers(Book_list, many=True)
        return Response(Books_json.data)
    def post(self, request):
        Book_json=BookSerializers(data=request.data)
        if Book_json.is_valid():
            Book_json.save()
            return Response(Book_json.data)
        else:
            return Response(Book_json.errors)

class BookDetailView(APIView):
    def get(self,request,pk):
        Book_obj=models.Book.objects.filter(pk=pk).first()
        Book_json=BookSerializers(Book_obj,many=False)
        return Response(Book_json.data)
    def put(self,request,pk):
        Book_obj = models.Book.objects.filter(pk=pk).first()
        Book_json=BookSerializers(data=request.data,instance=Book_obj)
        if Book_json.is_valid():
            Book_json.save() # update
            return Response(Book_json.data)
        else:
            return Response(Book_json.errors)
    def delete(self,request,pk):
        models.Book.objects.filter(pk=pk).delete()
        return Response("删除成功")
        
        
# book之第二种
from api import models
from rest_framework import serializers
from rest_framework.mixins import CreateModelMixin,RetrieveModelMixin,ListModelMixin,UpdateModelMixin,DestroyModelMixin
from rest_framework.generics import GenericAPIView

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Book
        fields='__all__'

class BookView(ListModelMixin,CreateModelMixin,GenericAPIView):
    queryset=models.Book.objects.all()
    serializer_class=BookSerializers

    def get(self, request):
        return self.list(request)

    def post(self, request):
        return self.create(request)

class BookDetailView(RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin,GenericAPIView):
    queryset=models.Book.objects.all()
    serializer_class=BookSerializers
    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 delete(self,request,*args,**kwargs):
        return self.destroy(request,*args,**kwargs)
        

# Book之第三种
from api import models
from rest_framework import serializers
from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Book
        fields='__all__'

class BookView(ListCreateAPIView):
    queryset=models.Book.objects.all()
    serializer_class=BookSerializers

class BookDetailView(RetrieveUpdateDestroyAPIView):
    queryset=models.Book.objects.all()
    serializer_class=BookSerializers
    
    
# Book之第四种
from api import models
from rest_framework import serializers
from rest_framework.viewsets import ModelViewSet

class BookSerializers(serializers.ModelSerializer):
    class Meta:
        model=models.Book
        fields='__all__'

class BookView(ModelViewSet):
    queryset=models.Book.objects.all()
    serializer_class=BookSerializers

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