rest_framework框架视图集整理

from rest_framework.generics import GenericAPIView
from rest_framework.request import Request
from rest_framework import filters
from rest_framework import mixins
from rest_framework import generics
from rest_framework import viewsets
from rest_framework.response import Response
from rest_framework import statusfrom .models import Project
from . import serializers
from .filters import ProjectFilter
from utils.pagination import PageNumberPagination# from utils import mixins
"""# 源码中mixins.py文件中的Mixin拓展类
获取列表数据：  ListModelMixin拓展类     ->  list action方法      -> get
创建数据：     CreateModelMixin拓展类   ->  create action方法    -> post
获取详情数据：  RetrieveModelMixin拓展类 ->  retrieve action方法  -> get
更新数据：     UpdateModelMixin拓展类   ->  update action（完整更新）、partial_update action方法（部分更新） -> put、patch
删除数据：     DestroyModelMixin拓展类  ->  destroy action方法   -> delete# 源码generics.py文件中的APIView具体的通用视图
获取列表数据：  ListAPIView         -> 继承ListModelMixin、GenericAPIView
创建数据：     CreateAPIView       -> 继承CreateModelMixin、GenericAPIView
获取详情数据：  RetrieveAPIView     -> 继承RetrieveModelMixin、GenericAPIView
更新数据：     UpdateAPIView       -> 继承UpdateModelMixin、GenericAPIView
删除数据：     DestroyAPIView      -> 继承DestroyModelMixin、GenericAPIView# 源码viewsets.py文件中的ModelViewSet视图集, GenericViewSet继承了GenericAPIView
class ModelViewSet(mixins.CreateModelMixin,mixins.RetrieveModelMixin,mixins.UpdateModelMixin,mixins.DestroyModelMixin,mixins.ListModelMixin,GenericViewSet):A viewset that provides default `create()`, `retrieve()`, `update()`,`partial_update()`, `destroy()` and `list()` actions.# 源码generics.py文件中的APIView具体的混合通用视图
获取列表数据、创建数据：ListCreateAPIView
获取数据详情、更新数据：RetrieveUpdateAPIView
获取数据详情、删除数据：RetrieveDestroyAPIView
获取数据详情、更新数据、删除数据：RetrieveUpdateDestroyAPIView# 视图集
1.如果需要实现在定义路由条目时，请求方法与要调用的action方法进行一一对应，必须得继承ViewSetMixin
2.ViewSet继承了ViewSetMixin、APIView，具备请求方法与要调用的action方法进行一一对应功能、以及认证授权限流功能，但是不支持Mixin，因为没有提供get_object()、get_queryset()、geat_serializer()等方法
3.GenericViewSet继承了ViewSetMixin、GenericAPIView，具备请求方法与要调用的action方法进行一一对应功能、以及支持Mixin拓展类
4.ReadOnlyModelViewSet继承了RetrieveModelMixin、ListModelMixin、GenericViewSet，提供了读取数据的2个接口
5.ModelViewSet继承了CreateModelMixin、RetrieveModelMixin、UpdateModelMixin、DestroyModelMixin、ListModelMixin、GenericViewSet，提供了6个接口
6.ViewSetMixin类提供了请求方法与要调用的action方法进行一一对应功能，在定义路由条目时，在as_view()方法中支持接收字典数据，把请求方法名称字符串作为key，把具体要调用的action方法名字符串作为值"""# class RetrieveAPIView(mixins.RetrieveModelMixin, GenericAPIView):
#     # get是请求方法名称
#     # retrieve是action名称
#     def get(self, request, *args, **kwargs):
#         return self.retrieve(request, args, kwargs)
#
#
# class UpdateAPIView(mixins.UpdateModelMixin, GenericAPIView):
#     def put(self, request, *args, **kwargs):
#         # update是一个action，完整更新
#         return self.update(request, args, kwargs)
#
#
# class DestroyAPIView(mixins.DestroyModelMixin, GenericAPIView):
#     def delete(self, request, *args, **kwargs):
#         return self.destroy(request, args, kwargs)# class ProjectDetailView(generics.RetrieveAPIView, generics.UpdateAPIView, generics.DestroyAPIView):
class ProjectDetailView(generics.RetrieveUpdateDestroyAPIView):serializer_class = serializers.ProjectModelSerializer2queryset = Project.objects.all()# 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 ProjectView(generics.ListAPIView, generics.CreateAPIView):
class ProjectView(generics.ListCreateAPIView):serializer_class = serializers.ProjectModelSerializer2queryset = Project.objects.all()search_fields = ['name', 'leader', 'desc', 'interfaces__name']filter_backends = [filters.SearchFilter, filters.OrderingFilter]filterset_class = ProjectFilterpagination_class = PageNumberPaginationordering_fields = ['name', 'id', 'leader']# def get(self, request: Request, *args, **kwargs):#     return self.list(request, args, kwargs)## def post(self, request: Request, *args, **kwargs):#     return self.create(request, args, kwargs)# class ProjectAllView(generics.RetrieveUpdateDestroyAPIView, generics.ListCreateAPIView):
#     serializer_class = serializers.ProjectModelSerializer2
#     queryset = Project.objects.all()
#     search_fields = ['name', 'leader', 'desc', 'interfaces__name']
#     filter_backends = [filters.SearchFilter, filters.OrderingFilter]
#     filterset_class = ProjectFilter
#     pagination_class = PageNumberPagination
#     ordering_fields = ['name', 'id', 'leader']# 需求：将上面5个接口全部放在同一个类视图中
# class ViewSet(ViewSetMixin, views.APIView)
# class ProjectViewSet(viewsets.ViewSet):
# class ProjectViewSet(viewsets.ViewSetMixin, generics.GenericAPIView):
# class ProjectViewSet(viewsets.GenericViewSet):
# class ProjectViewSet(
#         mixins.RetrieveModelMixin,
#         mixins.UpdateModelMixin,
#         mixins.DestroyModelMixin,
#         mixins.ListModelMixin,
#         mixins.CreateModelMixin,
#         viewsets.GenericViewSet):
class ProjectViewSet(viewsets.ModelViewSet):serializer_class = serializers.ProjectModelSerializer2queryset = Project.objects.all()search_fields = ['name', 'leader', 'desc', 'interfaces__name']filter_backends = [filters.SearchFilter, filters.OrderingFilter]filterset_class = ProjectFilterpagination_class = PageNumberPaginationordering_fields = ['name', 'id', 'leader']# def retrieve(self, request, *args, **kwargs):#     instance = self.get_object()#     serializer = self.get_serializer(instance=instance)#     return Response(serializer.data, status=status.HTTP_200_OK)## def update(self, request, *args, **kwargs):#     serializer = self.get_serializer(data=request.data, instance=self.get_object())#     serializer.is_valid(raise_exception=True)#     serializer.save()#     return Response(serializer.data, status=status.HTTP_201_CREATED)## def destory(self, request, *args, **kwargs):#     instance = self.get_object()#     instance.delete()#     return Response(None, status=status.HTTP_204_NO_CONTENT)## 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(instance=page, many=True)#         return self.get_paginated_response(serializer.data)##     serializer = self.get_serializer(instance=queryset, many=True)#     return Response(data=serializer.data, status=status.HTTP_200_OK)## def create(self, request, *args, **kwargs):#     serializer = self.get_serializer(data=request.data)#     serializer.is_valid(raise_exception=True)#     serializer.save()#     return Response(data=serializer.data, status=status.HTTP_201_CREATED)def name_detail(self, request, *args, **kwargs):instance = self.get_object()return Response({'id': instance.id,'name': instance.name})def names(self, request, *args, **kwargs):queryset = self.filter_queryset(self.get_queryset())data = [ obj.name for obj in queryset]return Response(data)