Django 1.10:“新样式"；相当于`process_request()`的中间件 [英] Django 1.10: "new style" middleware equivalent of `process_request()`

问题描述

一个人如何创建新样式"中间件，该中间件实现与将 process_request()钩子与旧样式"挂钩等效的实现方式?

How would one create "new style" middleware, which fulfills an equivalent implementation to using the process_request() hook with the "old style"?

我已经使用 MiddlewareMixin ...

from django.utils.deprecation import MiddlewareMixin

class MyCustomMiddleware(MiddlewareMixin):

    def process_request(self, request):
        # My request logic
        return response

我想知道如何执行纯"> 1.9新样式"实现.我尝试通过这样实现 __ init __()和 __ call __()来做到这一点，但是没有运气:

I'd like to know how to do a "pure" >1.9 "new style" implementation. I tried doing so by implementing __init__() and __call__() like this without luck:

class MyCustomMiddleware(object):

    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        # My request logic
        return response

谢谢.

推荐答案

下面是一个示例...

Here an example...

class TimeStampMiddleware(object):

    def __init__(self, get_response):
        self.get_response = get_response

    def __call__(self, request):
        request.timestamp = datetime.utcnow().strftime('%Y-%m-%d %H:%M:%S')

        response = self.get_response(request)
        return response

现在，您可以从您的视图中获取每个请求中的时间戳记！(仅是一个例子)

Now you can get the timestamp in every request from yours views! (is only an example)

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