@classmethod
def get_pretty_notification_info(cls, name, filename, line):
    """
        Return a sentence describing when this exception was already seen.
        """
    try:
        return cls.query.filter_by(name=name, filename=filename, line=line
            ).one().pretty_notification_info
    except:
        return 'It is the first time this exception has been seen.\n'
