欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

Restful_framework视图组件代码实例解析

程序员文章站 2022-07-09 19:24:03
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...

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。