Restful_framework视图组件代码实例解析

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：

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：

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：

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：

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。