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