/// <summary>已重载。删除关联数据</summary>
/// <returns></returns>
protected override int OnDelete()
{
if (MenuButtons != null)
{
MenuButtons.Delete();
}
return(base.OnDelete());
}
/// <summary>已重载。在事务保护范围内处理业务，位于Valid之后</summary>
/// <returns></returns>
protected override int OnUpdate()
{
Int32 result = base.OnUpdate();
String haveButtonIDs = "";
if (MenuButtons != null && MenuButtons.Count > 0)
{
foreach (var item in MenuButtons)
{
haveButtonIDs += item.ButtonID + ",";
}
//去除最后的逗号
haveButtonIDs = haveButtonIDs.TrimEnd(',');
}
//如果不相等说明按钮被修改了
if (haveButtonIDs != ButtonIDs)
{
//先删除后添加
if (MenuButtons != null && MenuButtons.Count > 0)
{
MenuButtons.Delete();
}
if (!String.IsNullOrEmpty(ButtonIDs))
{
Int32[] ss = ButtonIDs.SplitAsInt(",");
if (ss != null && ss.Length > 0)
{
EntityList <MenuButton> list = new EntityList <MenuButton>();
foreach (Int32 buttonID in ss)
{
var m = new MenuButton();
m.ButtonID = buttonID;
m.MenuID = ID;
list.Add(m);
}
list.Insert(true);
}
}
//如果只是更改了按钮菜单根不会重新设置，需要手动设置为null，否则扩展属性的缓存不会更新
Menu.Root = null;
//这里还需要清空菜单的缓存，否则从缓存中重新读取数据时扩展属性还是旧的
Menu.Meta.Cache.Clear(String.Format("菜单{0}更新了菜单按钮", Name));
//Menu.Meta.Cache.Entities.Clear();
//MenuButton.Meta.Cache.Entities.Clear();
//Menu.Meta.Cache.Clear(String.Format("菜单{0}更新了菜单按钮",Name));
}
return(result);
}
