12.30作业
查看并研究ListAPIView工具视图类,继承该类完成汽车资源的群查接口,汽车资源需要有image资源,查看接口image资源的值
from rest_framework.generics import ListAPIView
class CarListAPIView(ListAPIView):
queryset = models.Car.objects.filter(is_delete=False).all()
serializer_class = serializers.CarModelSerializer
研究GenericViewSet工具集,继承该类完成汽车资源的单查,群查,单增,单改,单删接口
from rest_framework.viewsets import GenericViewSet
class ViewGenericViewSet(GenericViewSet):
queryset = models.Car.objects.filter(is_delete=False).all()
serializer_class = serializer.CarModelSerializer
lookup_url_kwarg = 'pk'
def retrieve(self, request, *args, **kwargs):
instance = self.get_object()
serializer = self.get_serializer(instance)
return Response(serializer.data)
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)
def perform_create(self, serializer):
serializer.save()
from rest_framework.settings import api_settings
# 单查 群查
def get(self, request, *args, **kwargs):
pk = kwargs.get('pk')
if pk:
return self.retrieve(request, *args, **kwargs)
return self.list(request, *args, **kwargs)
# 单增,
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
self.perform_create(serializer)
# headers = self.get_success_headers(serializer.data)
return Response(serializer.data, status=201)
# 单局部改,
def update(self, request, *args, **kwargs):
partial = kwargs.pop('partial', True)
instance = self.get_object()
serializer = self.get_serializer(instance, data=request.data, partial=partial)
serializer.is_valid(raise_exception=True)
car_obj = serializer.save()
if getattr(instance, '_prefetched_objects_cache', None):
instance._prefetched_objects_cache = {}
return APIResponse(results=self.get_serializer(car_obj).data)
# 单删接口
def destroy(self, request, *args, **kwargs):
car_obj = self.get_object()
if not car_obj:
return APIResponse(1, msg="删除失败")
car_obj.is_delete = True
car_obj.save()
return APIResponse(msg="删除成功")