试图弄清楚如何使用decorator_from_middleware功能

Question

正如标题所述，我想从这里使用'decorator_from_middleware'功能：https://docs.djangoproject.com/en/2.1/_modules/django/utils/decorators/

但是，我只是对如何正确使用它感到困惑。我有我的自定义中间件类和所有普通中间件的东西设置。我将如何合并此函数，以便能够在装饰器的帮助下将我的中间件用作每个视图的基础？

例： 假设我有一些中间件类

class SimpleMiddleware:
def __init__(self, get_response):
self.get_response = get_response
# One-time configuration and initialization.
def __call__(self, request):
# Code to be executed for each request before
# the view (and later middleware) are called.
response = self.get_response(request)
# Code to be executed for each request/response after
# the view is called.
return response

如何使用decorator_from_middleware(middleware_class):并将其应用于特定视图？

Answer 1

注意：您的中间件可能无法正常工作，因为文档断言它需要与旧式中间件方法兼容。看看吧。

假设此代码是您的视图模块：

from django.http import HttpResponse
from django.utils.decorators import decorator_from_middleware
from myapp.middleware import SimpleMiddleware
simple_decorator = decorator_from_middleware(SimpleMiddleware)
@simple_decorator 
def some_view(request):
return HttpResponse("Hello World")

如果要将其应用于基于类的视图，则需要修饰调度方法。你甚至可以这样写一个mixin：

class SimpleMiddlewareMixin:
@simple_decorator 
def dispatch(*args, **kwargs):
return super().dispatch(*args, **kwargs)
class MyClassBasedView(SimpleMiddlewareMixin, ListView):
...