CoreData and NSOutlineView.

I have a question, may know the answer already. I am looking at using core data to store the project for my application I am starting. I want a categorized NSOutlineView that has categories and then children under. The categories just describe the nodes underneath it. They do not not necessarily match 1 to 1 my entities. From what I am seeing on the web it is better that I use a data source for my tree than trying to get bindings to work.

Am i missing out on something not using bindings? I have seen also seen that it takes a lot of work arounds to get NSTreeController to work properly with NSOutlineView. This is my first adventure into core data.


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