Restful_framework視圖組件代碼實例解析

更新時間：2020年11月17日 14:39:37 作者：迎風(fēng)而來

這篇文章主要介紹了Restful_framework視圖組件代碼實例解析,文中通過示例代碼介紹的非常詳細，對大家的學(xué)習(xí)或者工作具有一定的參考學(xué)習(xí)價值,需要的朋友可以參考下

一、基本視圖

寫一個出版社的增刪查改resful接口

要自己事先創(chuàng)建好django項目，并創(chuàng)建好表，添加完記錄

路由：

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

視圖：

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):
　　#查詢出版社表中所有記錄
  def get(self, request):
    publish_list = models.Publish.objects.all()
    bs = PublishSerializers(publish_list, many=True)
    # 序列化數(shù)據(jù)

    return Response(bs.data)  #返回的結(jié)果是列表中套字典
　　
  def post(self, request):
    # 添加一條數(shù)據(jù)
    print(request.data)

    bs=PublishSerializers(data=request.data)
    if bs.is_valid():
      bs.save() # 生成記錄
      return Response(bs.data)  #返回的是添加成功記錄的字典
    else:

      return Response(bs.errors)

class PublishDetailView(APIView):　　 #查詢某一條數(shù)據(jù)
  def get(self,request,pk):
    publish_obj=models.Publish.objects.filter(pk=pk).first()
    bs=PublishSerializers(publish_obj,many=False)
    return Response(bs.data)　　 #更新某一條數(shù)據(jù)
  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)　　 #刪除某一條數(shù)據(jù)
  def delete(self,request,pk):
    models.Publish.objects.filter(pk=pk).delete()

    return Response("")

二、mixins類和generic類編寫視圖

路由：

url(r'^publishes$', views.Publish.as_view()),
url(r'^publish/(?P<pk>\d+)', views.PublishDetail.as_view()),

視圖：

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下有一個list方法，返回的就是查詢的結(jié)果:Response(serializer.data)
  def post(self,request):
    return self.create(request) #已經(jīng)封裝好了，幫我們做校驗和序列化，返回的是添加成功的記錄
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()),

視圖：

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'})),

視圖：

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內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。

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