试图从中间件功能中找出如何使用decorator\u

Question

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

然而，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正常的中间件设置。在装饰师的帮助下，我将如何使用这个函数来使用我的中间件作为每个视图的基础

例如： 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工作，因为文档断言它需要与旧式中间件方法兼容Check it out

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")

若要将此应用于基于类的视图，则需要修饰分派方法。您甚至可以这样编写一个mixin：

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

class MyClassBasedView(SimpleMiddlewareMixin, ListView):
    ...