-- =============================
-- Author: <杨俊明,Jimmy.yang@cntvs.com or yjmyzz@126.com>
-- Description: <无限级分类_删除分类>
-- Return : 0删除正常,-1父类下还有子类
-- ===========================
Alter PROCEDURE [dbo].[up_Class_DeleteEx]
@clsId uniqueidentifier, --要删除的分类
@withChild bit --是否级联删除子类
AS
BEGIN
SET NOCOUNT ON;
Declare @so_MaxOrders int;
Declare @s_Childs int;
Declare @clsType Nvarchar(50);
Declare @O_RootId int;
Select @O_RootId = F_RootId,@clsType = F_Type From T_Class where F_ID=@clsId;
If (@WithChild=1)
begin
Select @so_maxOrders=max(F_orders) From T_class Where F_ID=@clsId or F_ParentIdStr like '%' + Convert(varchar(50),@clsId) + '%'; --得到自身系的最大排序号
Select @s_Childs= Count(F_ID) from t_Class Where F_ID=@clsId or F_ParentIdStr like '%' + Convert(varchar(50),@clsId) + '%';
Delete from T_Class where ','+F_parentIdStr+',' like '%' + convert(varchar(100),@clsId) + '%'
Delete from T_Class Where F_Id=@ClsId
Update T_Class Set F_Orders = F_Orders - @s_childs where F_Type=@clsType And F_RootId=@O_RootId And F_Orders > @so_maxOrders;
return 0
end
else
--如果不级联删除，又有子节点，则返回-1
If exists(select F_id from T_Class where ',' + F_parentIdStr + ',' like '%' + convert(varchar(100),@clsId) + '%')
return -1
else
begin
Select @so_maxOrders=max(F_orders) From T_class Where F_ID=@clsId or F_ParentIdStr like '%' + Convert(varchar(50),@clsId) + '%'; --得到自身系的最大排序号
Select @s_Childs= 1;
Delete from T_Class Where F_Id=@ClsId;
Update T_Class Set F_Orders = F_Orders - @s_childs where F_Type=@clsType And F_RootId=@O_RootId And F_Orders > @so_maxOrders;
return 0
end
END
