'Update or create settings for user.'

@classmethod
def record_settings(cls, user, personalized=False, discovery=False, rising=False, nsfw=False):

    try:
        settings = cls._byID(user._id36)
    except tdb_cassandra.NotFound:
        settings = ExploreSettings(_id=user._id36, personalized=personalized, discovery=discovery, rising=rising, nsfw=nsfw)
    else:
        settings.personalized = personalized
        settings.discovery = discovery
        settings.rising = rising
        settings.nsfw = nsfw
    settings._commit()
