RESTful API终极版序列化封装

urls:

from django.conf.urls import url

from app01 import views

urlpatterns = [

    # url(r"comment/$",views.Comment.as_view()),

    url(r"comment/(?P<pk>\d+)",views.CommentDetailView.as_view()),

    url(r"article/$",views.Article.as_view()),

    url(r"school/(?P<id>\d+)",views.SchoolDetail.as_view(),name="school-detail"),

    url(r"school_view/$",views.SchoolView.as_view(),name="school_view-detail"),

    url(r"comment_view/$",views.CommentView.as_view(),name="comment_view-detail"),

    url(r"article/(?P<pk>\d+)",views.ArticleDetail.as_view(),name="article-detail"),

    # url(r'comment/$',views.CommentViewSet.as_view({

    #     "get":"list",

    #     "put":"create",

    # })),

    #

    # url(r'comment/(?P<pk>\d+)/$',views.CommentViewSet.as_view({

    #     "get":"retrieve",

    #     "put":"update",

    #     "delete":"destroy"

    # }))

]

from rest_framework.routers import DefaultRouter

router = DefaultRouter()

router.register(r'comment',views.CommentViewSet)

urlpatterns += router.urls

#   相当于 在urlpatterns里添加了：

    # url(r'comment/$',views.CommentViewSet.as_view({

        #     "get":"list",

        #     "put":"create",

        # })),

        #

        # url(r'comment/(?P<pk>\d+)/$',views.CommentViewSet.as_view({

        #     "get":"retrieve",

        #     "put":"update",

        #     "delete":"destroy"

        # }))

views:此处为RESTful API 终极版：

from django.shortcuts import render,HttpResponse

from django.http import JsonResponse

from app01 import models

from rest_framework import serializers

from django import views

from rest_framework.views import APIView

from rest_framework.response import Response

from app01 import serializers as app01_serializers

from rest_framework.generics import GenericAPIView

from rest_framework.mixins import ListModelMixin,CreateModelMixin,RetrieveModelMixin,UpdateModelMixin,DestroyModelMixin

from rest_framework.generics import GenericAPIView, RetrieveUpdateDestroyAPIView, ListCreateAPIView

from rest_framework.viewsets import ModelViewSet

# ==================================================================

# 95天内容

# 第一种方式：

# class CommentView(APIView):

#     def get(self,request):

#         query_set = models.Comment.objects.all()

#         ser_obj = app01_serializers.CommentSerializer(query_set,many=True)

#         return Response(ser_obj.data)

# 使用封装类后：

# class CommentView(GenericAPIView,ListModelMixin,CreateModelMixin):

    """

    GenericAPIView

    只需要配置

    queryset 和 serializer_class 即可

    """

    # queryset = models.Comment.objects.all()  # 指定queryset对象

    # serializer_class = app01_serializers.CommentSerializer  # 指定类序列化

    #

    # def get(self,request, *args, **kwargs):

    #     return self.list(request, *args, **kwargs)

    # list方法为 ListModelMixin内部封装的函数，其源码为：

    # def list(self, request, *args, **kwargs):

    #     queryset = self.filter_queryset(self.get_queryset())

    #

    #     page = self.paginate_queryset(queryset)

    #     if page is not None:

    #         serializer = self.get_serializer(page, many=True)

    #         return self.get_paginated_response(serializer.data)

    #

    #     serializer = self.get_serializer(queryset, many=True)

    #     return Response(serializer.data)

    # 其实质与之前我们使用APIView一样，

    # post 同理

    # def post(self,request, *args, **kwargs):

    #     print("评论区")

    #     return self.create(request, *args, **kwargs)

# 评论详情：

# class CommentDetailView(GenericAPIView,RetrieveModelMixin,DestroyModelMixin,UpdateModelMixin):

#     queryset = models.Comment.objects.all()

#     serializer_class = app01_serializers.CommentSerializer

#

#     def get(self,request,pk):

#         return self.retrieve(request,pk)

#

#     def delete(self,request,pk):

#         return self.destroy(request,pk)

#

#     def perform_destroy(self, instance):

#         "someting code"

#         # 可以在删除之前做的一些操作

#         instance.delete()

#

#     def put(self,request,pk):

#         return self.update(request,pk)

class SchoolView(GenericAPIView,ListModelMixin):

    queryset = models.Comment.objects.all()

    serializer_class = app01_serializers.CommentSerializer

    def get(self,request,*args,**kwargs):

        return self.list(request, *args,**kwargs)

# 第二种方式

class CommentDetailView(RetrieveUpdateDestroyAPIView):

    # RetrieveUpdateDestroyAPIView  相当于封装了GenericAPIView

    # RetrieveModelMixin,DestroyModelMixin,UpdateModelMixin 这四个

    # 可以进行查看，更改和删除操作。

    queryset = models.Comment.objects.all()

    serializer_class = app01_serializers.CommentSerializer

#

class CommentView(ListCreateAPIView):

    # ListCreateAPIView:内封装了 ListModelMixin CreateModelMixin

    queryset =models.Comment.objects.all()

    serializer_class = app01_serializers.CommentSerializer

# 第三种方式：

# 终极版：

class CommentViewSet(ModelViewSet):

    queryset = models.Comment.objects.all()

    serializer_class = app01_serializers.CommentSerializer