Three kinds of inheritance drf view

Method (inherited) view

• The first: the original APIView

  Need to write the get / post method itself.

  url(r'^login/$',account.LoginView.as_view()),

  from rest_framework.views import APIView
  from rest_framework.response import Response
  from rest_framework_jwt.settings import api_settings
  from rest_framework.throttling import AnonRateThrottle
  from api import models
  
  
  class LoginView(APIView):
      authentication_classes = []
      def post(self,request,*args,**kwargs):
          # 1.根据用户名和密码检测用户是否可以登录
          user = models.UserInfo.objects.filter(username=request.data.get('username'),password=request.data.get('password')).first()
          if not user:
              return Response({'code':10001,'error':'用户名或密码错误'})
  
          # 2. 根据user对象生成payload（中间值的数据）
          jwt_payload_handler = api_settings.JWT_PAYLOAD_HANDLER
          payload = jwt_payload_handler(user)
  
          # 3. 构造前面数据，base64加密；中间数据base64加密；前两段拼接然后做hs256加密（加盐），再做base64加密。生成token
          jwt_encode_handler = api_settings.JWT_ENCODE_HANDLER
          token = jwt_encode_handler(payload)
          return Response({'code': 10000, 'data': token})

• The second: ListAPIView (get more data), RetrieveAPIView (get individual data), CreateAPIView (post), DestroyAPIView (delete), UpdateAPIView (put / patch) and the like. Without handwriting get \ post and other methods.

  url(r'^article/$',article.ArticleView.as_view()),
  url(r'^article/(?P<pk>\d+)/$',article.ArticleDetailView.as_view()),

  from rest_framework.throttling import AnonRateThrottle
  from rest_framework.response import Response
  from rest_framework.generics import ListAPIView, RetrieveAPIView
  from api import models
  from api.serializer.article import ArticleSerializer,ArticleDetailSerializer
  
  class ArticleView(ListAPIView):
      """文章列表"""
      authentication_classes = []
      # throttle_classes = [AnonRateThrottle,]
  
      queryset = models.Article.objects.all()
      serializer_class = ArticleSerializer
  
  class ArticleDetailView(RetrieveAPIView):
      """单个文章"""
      authentication_classes = []
      queryset = models.Article.objects.all()
      serializer_class = ArticleDetailSerializer

• Third: ListModelMixin, RetrieveModelMixin, CreateModelMixin, UpdateModelMixin, DestroyModelMixin like. They have their own internal methods corresponding.

  We need to start to write the correspondence between the route.

  routing:

  url(r'^article/$',article.ArticleView.as_view({"get":'list','post':'create'})),
  
  url(r'^article/(?P<pk>\d+)/$',article.ArticleView.as_view({'get':'retrieve','put':'update','patch':'partial_update','delete':'destroy'}))

  view:

  from rest_framework.viewsets import GenericViewSet
  from rest_framework.mixins import ListModelMixin,RetrieveModelMixin,CreateModelMixin,UpdateModelMixin,DestroyModelMixin
  from api.serializer.article import ArticleSerializer,ArticleDetailSerializer
  
  class ArticleView(GenericViewSet,ListModelMixin,RetrieveModelMixin,):
      """获取文章列表以及单条文章"""
      authentication_classes = []
      throttle_classes = [AnonRateThrottle,]
  
      queryset = models.Article.objects.all()
      serializer_class = None
  
      def get_serializer_class(self):
          pk = self.kwargs.get('pk')
          if pk:
              return ArticleDetailSerializer
          return ArticleSerializer
  

  to sum up:

  APIView, only provides basic function, version, authentication, permissions, throttle and other functions, but there is no CRUD functionality;
  ListAPIView such as, inheritance APIView, providing CRUD functionality, do not write their own get / post method;
  ListModelMixin etc., would need to change the routing, transmission parameters { "get": 'list' }, get represents a mode, and a list method. This allows you to get more (the list) and get one on a class.