Django Middleware: Setting Values for Next Function

In Django middleware, you can assign values to the next function using attributes of the request object. Here is a simple example code:

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

    def __call__(self, request):
        # 在这里给下一个函数赋值
        request.custom_value = 'example_value'

        response = self.get_response(request)

        return response

In the code above, we assigned a custom value called example_value to the custom_value attribute of the request object, and then passed it on to the next middleware or view function. This way, the value can be accessed in the subsequent middleware or view function using request.custom_value.