/// <summary>
/// 判断OrderByClip是否为null或空
/// </summary>
/// <param name="where"></param>
/// <returns></returns>
public static bool IsNullOrEmpty(OrderByClip order)
{
if ((object)order == null || string.IsNullOrEmpty(order.ToString()))
{
return(true);
}
return(false);
}
/// <summary>
/// 添加一个排序
/// </summary>
/// <param name="order"></param>
public QueryCreator AddOrder(OrderByClip order)
{
if (DataUtils.IsNullOrEmpty(order))
{
return(this);
}
if (orderList.Exists(o =>
{
return(string.Compare(order.ToString(), o.ToString()) == 0);
}))
{
return(this);
}
//不存在条件，则加入
orderList.Add(order);
return(this);
}
/// <summary>
/// 返回最终排序的SQL
/// </summary>
/// <param name="order"></param>
/// <returns></returns>
public string Serialization(OrderByClip order)
{
return(dbProvider.FormatCommandText(order.ToString()));
}
/// <summary>
/// 返回最终排序的SQL
/// </summary>
/// <param name="order"></param>
/// <returns></returns>
public string Serialization(OrderByClip order)
{
return(dbProvider.Serialization(order.ToString()));
}