REST_FRAMEWORK加深记忆-三种CLASS VIEW的进化史

from rest_framework import status
from rest_framework.response import Response
from snippets.models import Snippet
from snippets.serializers import SnippetSerializer
from django.http import Http404
from rest_framework.views import APIView
from rest_framework import mixins
from rest_framework import generics

class SnippetListOld(APIView):

def get(self, request, format=None):
snippets = Snippet.objects.all()
serializer = SnippetSerializer(snippets, many=True)
return Response(serializer.data)

def post(self, request, format=None):
serializer = SnippetSerializer(data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data, status=status.HTTP_201_CREATED)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

class SnippetDailOld(APIView):

def get_object(self, pk):
try:
return Snippet.object.get(pk=pk)
except Snippet.DoesNotExist:
raise Http404

def get(self, request, pk, format=None):
snippet = self.get_object(pk)
serializer = SnippetSerializer(snippet)
return Response(serializer.data)

def put(self, request, pk, format=None):
snippet = self.get_object(pk)
serializer = SnippetSerializer(snippet, data=request.data)
if serializer.is_valid():
serializer.save()
return Response(serializer.data)
return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

def delete(self, request, pk, format=None):
snippet = self.get_object(pk)
snippet.delete()
return Response(status=status.HTTP_204_NO_CONTENT)

class SnippetListOld2(mixins.ListModelMixin,
mixins.CreateModelMixin,
generics.GenericAPIView):
queryset = Snippet.objects.all()
serializer_class = SnippetSerializer

def get(self, request, *args, **kwargs):
return self.list(request, *args, **kwargs)

def post(self, request, *args, **kwargs):
return self.create(request, *args, **kwargs)

class SnippetDetailOld2(mixins.RetrieveModelMixin,
mixins.UpdateModelMixin,
mixins.DestroyModelMixin,
generics.GenericAPIView):
queryset = Snippet.objects.all()
serializer_class = SnippetSerializer

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)

class SnippetList(generics.ListCreateAPIView):
queryset = Snippet.objects.all()
serializer_class = SnippetSerializer

class SnippetDetail(generics.RetrieveUpdateDestroyAPIView):
queryset = Snippet.objects.all()
serializer_class = SnippetSerializer