public void ProcessRequest(HttpContext context)
{
var moveType = context.Request["moveType"];
var from = Guid.Parse(context.Request["from"]);
var toStr = context.Request["to"];
Guid?to;
if (!String.IsNullOrEmpty(toStr))
{
to = Guid.Parse(toStr);
}
else
{
to = null;
}
using (var db = new OrganizerEntities())
{
var fromItem = db.TreeItems.Find(from);
CustomMembershipProvider.ValidateAccessToTreeItem_ReturnActiveAuthEntity(fromItem, db, true);
TreeItem toItem = null;
if (to.HasValue)
{
toItem = db.TreeItems.Find(to);
CustomMembershipProvider.ValidateAccessToTreeItem_ReturnActiveAuthEntity(toItem, db, true);
}
switch (moveType)
{
case "top":
{
var children = new List <TreeItem>();
GetTreeItems.GetChildTreeItemsReadonlyHtml(fromItem.ParentId.Value, db, children, false, false);
var firstChild = children.FirstOrDefault();
var previousSibling = db.TreeItems.FirstOrDefault(x => x.NextSiblingId == from);
if (previousSibling != null)
{
previousSibling.NextSiblingId = fromItem.NextSiblingId;
db.SaveChanges();
}
fromItem.NextSiblingId = firstChild.Id;
db.SaveChanges();
}
break;
case "bottom":
{
var children = new List <TreeItem>();
GetTreeItems.GetChildTreeItemsReadonlyHtml(fromItem.ParentId.Value, db, children, false, false);
var lastChild = children.LastOrDefault();
var previousSibling = db.TreeItems.FirstOrDefault(x => x.NextSiblingId == from);
if (previousSibling != null)
{
previousSibling.NextSiblingId = fromItem.NextSiblingId;
db.SaveChanges();
}
if (lastChild != null)
{
lastChild.NextSiblingId = fromItem.Id;
}
fromItem.NextSiblingId = null;
db.SaveChanges();
}
break;
case "children":
{
var children = new List <TreeItem>();
GetTreeItems.GetChildTreeItemsReadonlyHtml(to.Value, db, children, false, false);
var lastChild = children.LastOrDefault();
var previousSibling = db.TreeItems.FirstOrDefault(x => x.NextSiblingId == from);
if (previousSibling != null)
{
previousSibling.NextSiblingId = fromItem.NextSiblingId;
db.SaveChanges();
}
fromItem.ParentId = toItem.Id;
fromItem.NextSiblingId = null;
if (lastChild != null)
{
lastChild.NextSiblingId = fromItem.Id;
}
db.SaveChanges();
}
break;
case "siblings":
{
var previousSibling = db.TreeItems.FirstOrDefault(x => x.NextSiblingId == from);
if (previousSibling != null)
{
previousSibling.NextSiblingId = fromItem.NextSiblingId;
db.SaveChanges();
}
fromItem.ParentId = toItem.ParentId;
fromItem.NextSiblingId = toItem.NextSiblingId;
toItem.NextSiblingId = fromItem.Id;
db.SaveChanges();
}
break;
default: throw new ArgumentException("invalid moveType: " + moveType);
}
db.SaveChanges();
}
context.Response.ContentType = "text/plain";
context.Response.Write("OK");
}