static public bool RemoveItemId(MylistItemIdContainer item)
{
var db = HohoemaLiteDb.GetTempLiteRepository();
return(db.Delete <MylistItemIdContainer>(x => x.VideoId == item.VideoId && x.MylistGroupId == item.MylistGroupId) > 0);
}
static public void AddItemId(MylistItemIdContainer item)
{
var db = HohoemaLiteDb.GetTempLiteRepository();
db.Upsert <MylistItemIdContainer>(item);
}