rest_framework之视图

写一个出版社的增删改查restful接口

models

 from django.db import models

 # Create your models here.

 from django.db import models

 # Create your models here.

 class Book(models.Model):
     title = models.CharField(max_length=32)
     price = models.IntegerField()
     pub_date = models.DateField()
     publish = models.ForeignKey("Publish")
     authors = models.ManyToManyField("Author")

     def __str__(self):
         return self.title

     def test(self):
         return ''

 class Publish(models.Model):
     name = models.CharField(max_length=32)
     email = models.EmailField()
     # def __str__(self):
     #     return self.name

 class Author(models.Model):
     name = models.CharField(max_length=32)
     age = models.IntegerField()

     def __str__(self):
         return self.name

视图

 from django.shortcuts import render, HttpResponse
 # Book相关操作
 # Create your views here.
 from api import models
 from rest_framework.response import Response
 from rest_framework.views import APIView
 from rest_framework import serializers

 class BookSer(serializers.ModelSerializer):
     class Meta:
         model = models.Book
         fields = "__all__"

 class List():
     def list(self):
         ret = self.ret.objects.all()
         ser = self.book_ser(instance=ret, many=True)
         return Response(ser.data)

 class Create():
     def create(self, request):
         back_msg = {'status': 0, 'data': None, 'msg': 'error happened'}
         ser = BookSer(data=request.data)
         if ser.is_valid():
             ser.save()
             back_msg['data'] = ser.data
             back_msg['status'] = 1
             back_msg['msg'] = 'create success'
         return Response(back_msg)

 class Book(APIView, List, Create):
     ret = models.Book
     book_ser = BookSer

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

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

 class BookDetail(APIView):
     def get(self, request, pk):
         ret = models.Book.objects.filter(pk=pk).first()
         ser = BookSer(instance=ret, many=False)
         return Response(ser.data)

     def put(self, request, pk):
         ret = models.Book.objects.filter(pk=pk).first()
         ser = BookSer(instance=ret, data=request.data)
         if ser.is_valid():
             ser.save()
             return Response(ser.data)

     def delete(self, request, pk):
         models.Book.objects.filter(pk=pk).delete()
         return HttpResponse('already deleted')

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)

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

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