NSTreeController, Core Data and Relationships
NSTreeController, Core Data and Relationships
- Subject: NSTreeController, Core Data and Relationships
- From: mark hill <email@hidden>
- Date: Mon, 26 Feb 2007 12:47:50 -0800 (PST)
I have a Core Data model that describes this kind of
hierarchy:
Root ---->
Group --->
Leaf --->
So that:
1. Root has-many groups
2. Group has_many leaves and has_many siblings (nested
groups), but only 1 root.
3. Leaf belongs_to 1 group
I have declared only a single @"name" attribute so
far, just to test.
My question is how one might use NSTreeController to
manage this set of relationships. I've been surfing
and reading mixed reports on NSTreeController, but it
seems the ideal candidate, or at least a subclass
does.
What would be a viable alternative?
How would I structure and then iterate the following
for the @"name" attribute, for instance?
Root1
Group1
Group1.1
Leaf
Leaf
Group1.2
Group1.2.1
Leaf
Group2
Group2.1
Leaf
Root2
Group blah blah
Many thanks,
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