多种view视图和序列化--django2
models.py
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1 from django.db import models 2 3 # Create your models here. 4 class Idc(models.Model): 5 name = models.CharField("机房名称",max_length=32) 6 address = models.CharField("机房地址",max_length=256) 7 phone = models.CharField("联系人",max_length=15) 8 email = models.EmailField("邮件地址",default="null") 9 letter = models.CharField("IDC简称",max_length=5) 10 11 def __str__(self): 12 return self.name 13 14 class Meta: 15 db_table = 'resources_idc'
serializers.py
![](https://images.cnblogs.com/OutliningIndicators/ContractedBlock.gif)
1 from rest_framework import serializers 2 from .models import Idc 3 4 class IdcSerializer(serializers.Serializer): 5 """ 6 Idc 序列化类 7 """ 8 id = serializers.IntegerField(read_only=True) 9 name = serializers.CharField(required=True, max_length=32) 10 address = serializers.CharField(required=True, max_length=256) 11 phone = serializers.CharField(required=True, max_length=15) 12 email = serializers.EmailField(required=True) 13 letter = serializers.CharField(required=True, max_length=5) 14 15 #必须有create,才能使用save(), data={...} a=IdcSerializer(data=data) a.save() 16 def create(self, validated_data): 17 return Idc.objects.create(**validated_data) 18 def update(self, instance, validated_data): 19 instance.name = validated_data.get("name", instance.name) 20 instance.address = validated_data.get("address", instance.address) 21 instance.phone = validated_data.get("phone", instance.phone) 22 instance.email = validated_data.get("email", instance.email) 23 instance.save() 24 return instance
版本一 :APIView
自己写get、post等方法
urlpatterns = [ url("^$", views.api_root), url("^idcs/$", views.IdcList.as_view(), name="idc-list"), url("^idcs/(?P<pk>[0-9]+)/$", views.IdcDetail.as_view(), name="idc_detail") ] urlpatterns = format_suffix_patterns(urlpatterns)
from rest_framework.views import APIView from django.http import Http404 class IdcList(APIView): def get(self, request, format=None): queryset = Idc.objects.all() serializer = IdcSerializer(queryset, many=True) return Response(serializer.data) def post(self, request, format=None): serializer = IdcSerializer(data=request.data) if serializer.is_valid(): serializer.save() return Response(serializer.data, status=status.HTTP_201_CREATED) return Response(serializer.data, status=status.HTTP_400_BAD_REQUEST) class IdcDetail(APIView): def get_object(self, pk): try: return Idc.objects.get(pk=pk) except Idc.DoesNotExist: raise Http404 def get(self, request, pk, format=None): idc = self.get_object(pk) serializer = IdcSerializer(idc) return Response(serializer.data) def put(self, request, pk, format=None): idc = self.get_object(pk) serializer = IdcSerializer(idc, data=request.data) if serializer.is_valid(): serializer.save() return Response(serializer.data) return Response(serializer.errors, status=status.HTTP_404_NOT_FOUND) def delete(self, request, pk, format=None): idc = self.get_object(pk) idc.delete() return HttpResponse(status=status.HTTP_204_NO_CONTENT)
版本二:使用混合类(generics.GenericAPIView+mixins.RetrieveModelMixin)实现
需要自己重复写get、post方法,因为ListModelMixin没有写get方法
from rest_framework import generics
from rest_framework import mixins
class IdcList_V4(generics.GenericAPIView, mixins.ListModelMixin, mixins.CreateModelMixin): queryset = Idc.objects.all() serializer_class = IdcSerializer 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 IdcDetail_V4(generics.GenericAPIView,
mixins.RetrieveModelMixin,
mixins.UpdateModelMixin,
mixins.DestroyModelMixin):
queryset = Idc.objects.all()
serializer_class = IdcSerializer
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)
版本三:viewset(viewsets.GenericViewSet+mixins)扩展实现
将所有请求用一个class实现,如:GenericViewSet+ListModelMixin
get请求绑定到list之上,post绑定到create
########################## 版本六 ############################
from rest_framework import viewsets
class IdcListViewset(viewsets.GenericViewSet,
mixins.ListModelMixin,
mixins.RetrieveModelMixin,
mixins.DestroyModelMixin,
mixins.UpdateModelMixin,
mixins.CreateModelMixin):
queryset = Idc.objects.all()
serializer_class = IdcSerializer
urls.py绑定参数:
idc_list = views.IdcListViewset.as_view({ "get": "list", "post": "create" }) idc_detail = views.IdcListViewset.as_view({ "get": "retrieve", "put": "update", "delete": "destroy" }) urlpatterns = [ #url("^$", views.api_root), url("^idcs/$", idc_list, name="idc-list"),#此时,url中不需要再加as_view()了 url("^idcs/(?P<pk>[0-9]+)/$", idc_detail, name="idc_detail") ]
或者用router实现自动绑定get 和list,create 和 post等等
from rest_framework.routers import DefaultRouter # 导入
from django.urls import path
#实例化router
router = DefaultRouter()
# 注册idc
router.register(r'idc', IdcListViewset, base_name="idcs")
urlpatterns = [ # router的path路径 path('', include(router.urls)),
]
版本四:使用高级混合(generics.ListCreateAPIView等)实现
父类包含具体请求方式,如:ListCreateAPIView包括了get
urlpatterns = [
url("^$", views.api_root),
url("^idcs/$", views.IdcList_V5.as_view(), name="idc-list"),
url("^idcs/(?P<pk>[0-9]+)/$", views.IdcDetail_V5.as_view(), name="idc_detail")
]
urlpatterns = format_suffix_patterns(urlpatterns)
from rest_framework import generics
class IdcList_V5(generics.ListCreateAPIView):#包括查找和创建 queryset = Idc.objects.all() serializer_class = IdcSerializer
class IdcDetail_V5(generics.RetrieveUpdateDestroyAPIView): #包括 详细查找 、更新和删除
queryset = Idc.objects.all()
serializer_class = IdcSerializer
版本五: ModelViewSet(router)实现:
整合:ModelViewSet包括所有方法
########################## 版本七 ############################ from rest_framework.routers import DefaultRouter route = DefaultRouter() route.register("idcs", views.IdcViewset_v7) urlpatterns = [ url(r'^', include(route.urls)) ]
class IdcViewset_v7(viewsets.ModelViewSet): queryset = Idc.objects.all() serializer_class = IdcSerializer
运维虐我千万遍,我对运维如初恋。