/// <summary>
/// 泛型递归求树形结构
/// </summary>
/// <param name="all"></param>
/// <param name="curItem"></param>
/// <param name="pid"></param>
public static void LoopToAppendChildren(List <SysMenuTreeVM> all, SysMenuTreeVM curItem, string pid)
{
var subItems = all.Where(ee => ee.ParentId == curItem.ID).ToList();
if (subItems.Count > 0)
{
curItem.Children = new List <SysMenuTreeVM>();
curItem.Children.AddRange(subItems);
}
else
{
curItem.Children = null;
}
foreach (var subItem in subItems)
{
if (subItem.ID == pid && (default(Guid).ToString().Equals(pid) || string.IsNullOrWhiteSpace(pid)))
{
}
LoopToAppendChildren(all, subItem, pid);
}
}
/// <summary>
/// 实现 菜单树
/// </summary>
/// <param name="parentId"></param>
/// <returns></returns>
public async Task <MessageModel <SysMenuTreeVM> > GetMenuTree(string parentId = "")
{
if (string.IsNullOrWhiteSpace(parentId))
{
parentId = default(Guid).ToString();
}
var sysMenus = await _dal.Query(d => d.Status == 1);//里面是没有根节点的,因为根节点是虚拟的
var sysMenuTrees = (from child in sysMenus
//where child.IsDeleted == false
orderby child.OrderNo
select new SysMenuTreeVM
{
ID = child.ID,
MenuId = child.MenuId,
Name = child.Name,
Url = child.Url,
PathUrl = child.PathUrl,
Description = child.Description,
Icon = child.Icon,
OrderNo = child.OrderNo,
IsShow = child.IsShow,
ParentId = child.ParentId,
CreateID = child.CreateID,
CreateTime = child.CreateTime,
Creator = child.Creator,
ModifyID = child.ModifyID,
Modifier = child.Modifier,
ModifyTime = child.ModifyTime,
Status = child.Status,
//PowerGroups = _mapper.Map<Destination<List<SysMenuPowerGroupVM>>>(new Source<SysMenuPowerGroup> { Value = _sysMenuPowerGRepository.Query() }).Value;
//转换
//将数据转化为T
// var source = new Source<SysUser> { Value = sysUserInfo };
//var t = _mapper.Map<Destination<SysUserVM>>(source);
//data = MessageModel<SysUserVM>.Success(t.Value);
}).ToList();
//虚拟一个根节点
SysMenuTreeVM rootRoot = new SysMenuTreeVM
{
ID = default(Guid).ToString(),
ParentId = default(Guid).ToString(),
Name = "根节点",
ParentArray = new List <String> {//不知道这块还给不给这个，还是赋值为空，待验证
default(Guid).ToString()
}
};
sysMenuTrees = sysMenuTrees.OrderBy(d => d.OrderNo).ToList();
//查询出所有菜单权限组
var allSysMenuPowerGs = await _sysMenuPowerGRepository.Query(mg => mg.Status == 1);
//查询出所有的权限组
var allSysPowerGroups = await _sysPowerGroupRepository.Query(g => g.Status == 1);
//查询每个节点的父节点 数组
foreach (var item in sysMenuTrees)
{
if (!default(Guid).ToString().Equals(item.ID))
{
//
List <string> pidArray = new List <string>();
//pidArray.Add(item.ID);//不要自己
var parent = sysMenuTrees.FirstOrDefault(d => d.ID == item.ParentId);
while (parent != null)
{
pidArray.Add(parent.ID);
parent = sysMenuTrees.FirstOrDefault(d => d.ID == parent.ParentId);
}
//补上根节点
pidArray.Add(default(Guid).ToString());
pidArray.Reverse();
item.ParentArray = pidArray;
//给每个节点加上权限组
item.PowerGroups = (from child in allSysPowerGroups
join mppg in allSysMenuPowerGs on child.ID equals mppg.SysPowerGroupID
where mppg.SysMenuID == item.ID
orderby child.OrderNo
select new SysPowerGroupVM
{
ID = child.ID,
Name = child.Name,
OrderNo = child.OrderNo,
CreateID = child.CreateID,
CreateTime = child.CreateTime,
Creator = child.Creator,
ModifyID = child.ModifyID,
Modifier = child.Modifier,
ModifyTime = child.ModifyTime,
Status = child.Status,
}).ToList();
}
}
LoopToAppendChildren(sysMenuTrees, rootRoot, parentId);//不是很懂是如何传递回rootRoot的
var messageModel = MessageModel <SysMenuTreeVM> .Success();
if (messageModel.success)
{
messageModel.data = rootRoot;
messageModel.msg = "获取成功";
}
return(messageModel);
}
