public TEntity Put(TEntity item)
        {
            var dbItem = item.ToDbModel();
            var result = dbSet.Edit(dbItem);

            return(result ? dbItem.ToTModel() : null);
        }
        public TEntity Post(string pid, TEntity item)
        {
            item.ParentId = pid.ToInt();
            var dbItem = item.ToDbModel();
            var result = dbSet.Add(dbItem);

            return(result ? dbItem.ToTModel() : null);
        }