middlewares.py 文件源码

def get_mongodb_connection(cls):
        if cls._connection is not None:
            return cls._connection
        try:
            cls._connection = pymongo.Connection(
                "{0}:{1}".format(
                    REQUEST_LOGGING_BACKEND['host'],
                    REQUEST_LOGGING_BACKEND['port']
                )
            )
            return cls._connection
        except Exception as e:
            # TODO: Add log here.
            return None