I've got a Core Data app, using the NSPersistantDocument stuff. There
are three basic entity types. There is one, which I'll call
MainEntity, which has optional to-many relationships with the other
two, which I'll call A and B. In my main window, I have a TableView,
which has its columns bound to subclass of NSArrayController (I'm
overriding setFilterPredicate, and have some convience methods). In
the bottom part of the window, there is an area that shows details of
the particular MainEntity that's selected in the table. there is
another table column which shows either the AEntities or BEntities
that the selected MainEntity has (using an ArrayController bound to
MainEntityArrayController.selection. When I have everything in one
nib, and use a TabView to control which of the A or B tables is shown,
everything works just fine. For various reasons, I want to replace
the bottom section of the window with a set of ViewControllers. I'm
at a loss trying to figure out how properly get a reference to the
MainEntityArrayController. I've put an instance of the
ArrayController in my AView.xib, and set the viewControllers
mainEntityArrayController outlet in windowControllerDidLoadNib. It
gets the right value there, but the change in selection doesn't seem
to propagate into the other view. what am I missing?
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