public static string GetValue(this CollectionStatus status)
        {
            switch (status)
            {
            case CollectionStatus.Wish:
                return("wish");

            case CollectionStatus.Collect:
                return("collect");

            case CollectionStatus.Do:
                return("do");

            case CollectionStatus.OnHold:
                return("on_hold");

            case CollectionStatus.Dropped:
                return("dropped");

            default:
                return(status.ToString());
            }
        }