protected override TreeNode <MenuItem> Build()
{
var entities = _menuStorage.GetMenuItems(Name, Services.StoreContext.CurrentStore.Id);
var tree = entities.GetTree("DatabaseMenu", _menuItemProviders);
return(tree);
}
public ActionResult MoveItem(int menuId, int sourceId, string direction)
{
if (menuId == 0 || sourceId == 0 || direction.IsEmpty())
{
return(new EmptyResult());
}
if (!Services.Permissions.Authorize(StandardPermissionProvider.ManageMenus))
{
NotifyAccessDenied();
return(new EmptyResult());
}
using (var scope = new DbContextScope(ctx: Services.DbContext, autoCommit: false))
{
var allItems = _menuStorage.GetMenuItems(menuId, 0, true).ToDictionary(x => x.Id, x => x);
var sourceItem = allItems[sourceId];
var siblings = allItems.Select(x => x.Value)
.Where(x => x.ParentItemId == sourceItem.ParentItemId)
.OrderBy(x => x.DisplayOrder)
.ToList();
var index = siblings.IndexOf(sourceItem) + (direction == "up" ? -1 : 1);
if (index >= 0 && index < siblings.Count)
{
var targetItem = siblings[index];
// Ensure unique display order starting from 1.
var count = 0;
siblings.Each(x => x.DisplayOrder = ++count);
// Swap display order of source and target item.
var tmp = sourceItem.DisplayOrder;
sourceItem.DisplayOrder = targetItem.DisplayOrder;
targetItem.DisplayOrder = tmp;
scope.Commit();
}
}
return(RedirectToAction("ItemList", new { id = menuId }));
}