private async Task <IEnumerable <Depts> > LL(long?parentId, long?targetId)
{
using (var db = new DbContext())
{
var rep = db.CreateTreeRepository <Depts>();
Depts parent = parentId == null ? null : db.Depts.Get(parentId);
var list = await rep.QueryChildren(parent)
.Select(s => s.ExtendAs <Depts>(() => new Depts
{
HasChildren = rep.HasChildren(s, null)
}))
.ToListAsync();
if (targetId != null && !TreeNodeExpandChecker.IsExpanded())
{
var target = await db.Depts.GetAsync(targetId);
var parents = await rep.RecurrenceParent(target).Select(s => s.DeptID).ToListAsync();
await list.ExpandAsync(parents, async childId => await LL(childId, targetId),
parents.Count - 1);
}
return(list);
}
}
/// <summary>
/// 获取模块列表。
/// </summary>
/// <param name="parentId">父节点ID。</param>
/// <param name="targetId">目标节点ID，即要展开并选定的节点。</param>
/// <param name="currentId">当前节点，在添加节点的时候要把当前节点排除。</param>
/// <param name="state">状态。</param>
/// <returns></returns>
public virtual List <SysModule> GetModules(int?parentId, int?targetId, int?currentId, StateFlags?state)
{
SysModule parent = null;
if (parentId != null)
{
parent = context.SysModules.FirstOrDefault(s => s.ModuleID == parentId);
}
var treeOper = context.CreateTreeRepository <SysModule>();
var result = treeOper.QueryChildren(parent)
//如果指定currentId，则需要排除
.AssertWhere(currentId != null, s => s.ModuleID != currentId)
.OrderBy(s => s.OrderNo)
//把HasChildren属性扩展出来
.Select(s => s.ExtendAs <SysModule>(() => new SysModule
{
HasChildren = treeOper.HasChildren(s, null),
}))
.ToList();
//如果要定位到指定的节点，则递归处理
if (targetId != null && !TreeNodeExpandChecker.IsExpanded())
{
var target = context.SysModules.Get(targetId);
var parents = treeOper.RecurrenceParent(target).Select(s => s.ModuleID).ToList();
result.Expand(parents, childId => GetModules(childId, targetId, currentId, state),
parents.Count - 1);
}
return(result);
}
/// <summary>
///
/// </summary>
/// <param name="id">父id。</param>
/// <param name="targetId">目标id，按它所在的路径进行展开，以便选中它。</param>
/// <param name="currentId">当前修改的id，防止树中列出它。</param>
/// <returns></returns>
private List <Dept> GetDepts(int?id, int?targetId, int?currentId)
{
var result = new List <Dept>();
using (var context = new DbContext())
{
Dept parent = null;
if (id != null)
{
parent = context.Depts.Get(id);
}
var persister = context.CreateTreePersister <Dept>();
//获得孩子的同时再判断是否有孙子
var children = from s in persister.QueryChildren(parent)
select new { s, HasChildren = persister.HasChildren(s, null) };
foreach (var child in children)
{
if (child.s.Id == currentId)
{
continue;
}
result.Add(child.s);
child.s.HasChildren = child.HasChildren;
child.s.Children = new List <Dept>();
}
if (targetId != null && !TreeNodeExpandChecker.IsExpanded())
{
//获得它的所有父id，根据编码000100010001这样从后往前递归
var target = context.Depts.Get(targetId);
if (target != null)
{
var parents = persister.RecurrenceParent(target).Select(s => s.Id).ToList();
result.Expand(parents, s => GetDepts(s, targetId, currentId), parents.Count - 1);
}
}
}
return(result);
}
/// <summary>
/// 获取机构列表
/// </summary>
/// <param name="parentId"></param>
/// <param name="targetId"></param>
/// <param name="currentId"></param>
/// <param name="state"></param>
/// <param name="keyword"></param>
/// <param name="attribute"></param>
/// <returns></returns>
public virtual List <SysOrg> GetOrgs(int?parentId, int?targetId, int?currentId, StateFlags?state, string keyword, OrgAttribute?attribute)
{
if (!string.IsNullOrEmpty(keyword))
{
return(context.SysOrgs
.Where(s => (s.Name.Contains(keyword)) && !s.Code.StartsWith("99"))
.AssertWhere(attribute != null, s => s.Attribute <= attribute && s.Attribute != 0)
.AssertWhere(state != null, s => s.State == state)
.ToList());
}
SysOrg parent = null;
if (parentId != null)
{
parent = context.SysOrgs.FirstOrDefault(s => s.OrgID == parentId);
}
var treeOper = context.CreateTreeRepository <SysOrg>();
var result = treeOper.QueryChildren(parent)
.AssertWhere(attribute != null, s => s.Attribute <= attribute && s.Attribute != 0)
//如果指定currentId，则需要排除
.AssertWhere(currentId != null, s => s.OrgID != currentId)
.AssertWhere(state != null, s => s.State == state)
.Where(s => !s.Code.StartsWith("99"))
.OrderBy(s => s.OrderNo)
//把HasChildren属性扩展出来
.Select(s => s.ExtendAs <SysOrg>(() => new SysOrg
{
HasChildren = treeOper.HasChildren(s, t => attribute == null || (attribute != null && t.Attribute <= attribute && t.Attribute != 0)),
AttributeName = s.Attribute.GetDescription()
}))
.ToList();
if (targetId != null && !TreeNodeExpandChecker.IsExpanded())
{
var target = context.SysOrgs.Get(targetId);
var parents = treeOper.RecurrenceParent(target).Select(s => s.OrgID).ToList();
result.Expand(parents, childId => GetOrgs(childId, targetId, currentId, state, string.Empty, attribute),
parents.Count - 1);
}
return(result);
}
