一、基本视图
写一个出版社的增删查改resful接口
要自己事先创建好django项目,并创建好表,添加完记录
路由:
url(r'^publish/$', views.PublishView.as_view()),
url(r'^publish/(?P<pk>\d+)/$', views.PublishDetailView.as_view()),
视图:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | from api import modelsfrom rest_framework import serializersfrom rest_framework.response import Responsefrom rest_framework.views import APIView class PublishSerializers(serializers.ModelSerializer): class Meta: model = models.Publish fields = '__all__' class PublishView(APIView): #查询出版社表中所有记录 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) #返回的结果是列表中套字典 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) #返回的是添加成功记录的字典 else : return Response(bs.errors) class PublishDetailView(APIView): #查询某一条数据 def get( self ,request,pk): publish_obj = models.Publish.objects.filter(pk = pk).first() bs = PublishSerializers(publish_obj,many = False ) return Response(bs.data) #更新某一条数据 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) #删除某一条数据 def delete( self ,request,pk): models.Publish.objects.filter(pk = pk).delete() return Response("") |
二、mixins类和generic类编写视图
路由:
url(r'^publishes$', views.Publish.as_view()),
url(r'^publish/(?P<pk>\d+)', views.PublishDetail.as_view()),
视图:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 | from api import models from rest_framework import serializers from rest_framework import mixins from rest_framework.generics import GenericAPIView class PublishSer(serializers.ModelSerializer): class Meta: model = models.Publish fields = '__all__' class Publish(GenericAPIView,mixins.ListModelMixin,mixins.CreateModelMixin): queryset = models.Publish.objects.all() serializer_class = PublishSer def get( self ,request): return self .list(request) #在ListModelMixin下有一个list方法,返回的就是查询的结果:Response(serializer.data) def post( self ,request): return self .create(request) #已经封装好了,帮我们做校验和序列化,返回的是添加成功的记录 class PublishDetail(GenericAPIView,mixins.DestroyModelMixin,mixins.RetrieveModelMixin,mixins.UpdateModelMixin): queryset = models.Publish.objects.all() serializer_class = PublishSer def get( self ,request, * args, * * kwargs): return self .retrieve(request, * args, * * kwargs) def put( self ,request, * args, * * kwargs): return self .update(request, * args, * * kwargs) def delete( self ,request, * args, * * kwargs): return self .destroy(request, * args, * * kwargs) |
三、使用generic下ListCreateAPIView和RetrieveUpdateDestroyAPIView
路由:
url(r'^publishes$', views.Publish.as_view()),
url(r'^publish/(?P<pk>\d+)', views.PublishDetail.as_view()),
视图:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | from api import models from rest_framework import mixins from rest_framework.generics import GenericAPIView from rest_framework.generics import ListCreateAPIView,RetrieveUpdateDestroyAPIView from rest_framework import serializers class Publishser(serializers.ModelSerializer): class Meta: model = models.Publish fields = '__all__' class Publish(ListCreateAPIView): queryset = models.Publish.objects.all() serializer_class = Publishser class PublishDetail(RetrieveUpdateDestroyAPIView): queryset = models.Publish.objects.all() serializer_class = Publishser |
四、使用ModelViewSet
路由:
url(r'^publish$',views.Publish.as_view({'get':'list','post':'create'})),
url(r'^publish/(?P<pk>\d+)', views.Publish.as_view({'get': 'retrieve', 'put': 'update', 'delete': 'destroy'})),
视图:
1 2 3 4 5 6 7 8 9 10 | from rest_framework.viewsets import ModelViewSet from api import models from rest_framework import serializers class Publishser(serializers.ModelSerializer): class Meta: model = models.Publish fields = '__all__' class Publish(ModelViewSet): queryset = models.Publish.objects.all() serializer_class = Publishser |
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持自学编程网。
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