private static void EnsureDetachedFromFormerParent(HierarchyNode hierarchyNode, ChangeSetBuilder pendingChanges)
{
if (hierarchyNode.Parent != null)
{
pendingChanges.Add(new DetachChildCommand(hierarchyNode.Parent.Id, hierarchyNode.Id));
}
}
private static void EnsureDetachedFromFormerParent(HierarchyNode hierarchyNode, ChangeSetBuilder pendingChanges)
{
if (hierarchyNode.Parent != null)
{
pendingChanges.Add(new DetachChildCommand(hierarchyNode.Parent.Id, hierarchyNode.Id));
}
}
public static void SetParent(this ChangeSetBuilder pendingChanges, Hierarchy hierarchy, Unit target, Unit newParent)
{
var parentHierarchyNode = EnsureIsPartOfHierarchy(newParent, hierarchy, pendingChanges);
var hierarchyNode = EnsureIsPartOfHierarchy(target, hierarchy, pendingChanges);
EnsureDetachedFromFormerParent(hierarchyNode, pendingChanges);
pendingChanges
.Add(new AttachChildCommand(parentHierarchyNode.Id, hierarchyNode.Id))
.Add(new SetParentCommand(hierarchyNode.Id, parentHierarchyNode.Id));
}
private static HierarchyNode EnsureIsPartOfHierarchy(Unit target, Hierarchy hierarchy, ChangeSetBuilder pendingChanges)
{
var hierarchyNode = target.Nodes.SingleOrDefault(x => x.Context.Id == hierarchy.Id);
if (hierarchyNode == null)
{
var nodeId = ObjectId.NewUniqueId();
return pendingChanges
.Add(new AttachToHierarchyCommand(target.Id, nodeId))
.Add(new CreateHierarchyNodeCommand(nodeId, target.Id, hierarchy.Id))
.GetPreview()
.GetById<HierarchyNode>(nodeId);
}
return hierarchyNode;
}
private static HierarchyNode EnsureIsPartOfHierarchy(Unit target, Hierarchy hierarchy, ChangeSetBuilder pendingChanges)
{
var hierarchyNode = target.Nodes.SingleOrDefault(x => x.Context.Id == hierarchy.Id);
if (hierarchyNode == null)
{
var nodeId = ObjectId.NewUniqueId();
return(pendingChanges
.Add(new AttachToHierarchyCommand(target.Id, nodeId))
.Add(new CreateHierarchyNodeCommand(nodeId, target.Id, hierarchy.Id))
.GetPreview()
.GetById <HierarchyNode>(nodeId));
}
return(hierarchyNode);
}
public static void SetHierarchyRoot(this ChangeSetBuilder pendingChanges, Hierarchy hierarchy, Unit newRoot)
{
var hierarchyNode = EnsureIsPartOfHierarchy(newRoot, hierarchy, pendingChanges);
pendingChanges.Add(new SetHierarchyRootCommand(hierarchy.Id, hierarchyNode.Id));
}
