Django silk中间件错误

Question

我正在尝试将django silk添加到我的项目中，并希望为我的应用程序上记录的每个请求添加用户ID。

下面是我设置中间件的方式：

MIDDLEWARE_CLASSES = (

    'logger.middleware.LoggerMiddleware',
    'silk.middleware.SilkyMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',



    'corsheaders.middleware.CorsMiddleware',

    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',


    'django.contrib.messages.middleware.MessageMiddleware',

    'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.middleware.locale.LocaleMiddleware',
    'middleware.loginrequired.LoginRequiredMiddleware',
    # Uncomment the next line for simple clickjacking protection:
    # 'django.middleware.clickjacking.XFrameOptionsMiddleware',
)

如您所见，silk上只有一个中间件。此中间件只需将用户ID添加到http标头：

class LoggerMiddleware:
    """.
    """

    def process_request(self, request):
        session_key = request.COOKIES.get('sessionid')
        print session_key
        if session_key:
            try:
                session = Session.objects.get(session_key=session_key)
                uid = session.get_decoded().get('_auth_user_id')
                print uid
                request.META['HTTP_USER_ID'] = str(uid)
            except Exception as inst:
                print "the exception: "
                print inst

问题是，每次我尝试执行post请求时，都会得到异常：

Silk middleware has not been installed correctly. Ordering must ensure that Silk middleware can execute process_request and process_response. If an earlier middleware returns from either of these methods, Silk will not have the chance to inspect the request/response objects.

谁能告诉我我做错了什么，有没有一种更简单的方法来记录在silk上发出请求的用户？