Django学习手册

# 装饰器定义
def auth(func):
    def inner(request,*args,**kwargs):
        v = request.COOKIES.get("user")
        if not v:
            return redirect("/login/")
        return func(request,*args,**kwargs)
    return inner

# FBV 方式
# @auth
# def index(request):
#     v = request.COOKIES.get("user")
#     return render(request,"index.html")


# CBV 方式(一)，直接在class内函数上装饰
from django import views
from django.utils.decorators import method_decorator

# class Order(views.View):
#     @method_decorator(auth)
#     def get(self,request):
#         v = request.COOKIES.get("user")
#         return render(request,"index.html")
#
#     def post(self,request):
#         v = request.COOKIES.get("user")
#         return render(request,"index.html")

# CBV 方式(二)，直接在class起始dispatch函数上装饰
# class Order(views.View):
#     @method_decorator(auth)
#     def dispatch(self, request, *args, **kwargs):
#         return super(Order,self).dispatch(request,*args,**kwargs)

# CBV 方式(三)，直接在class上装饰
# @method_decorator(auth,name="dispatch")
# class Order(views.View):
#      def dispatch(self, request, *args, **kwargs):
#         pass