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Bindings "Prepares content" to automatically initialize some fields?
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Bindings "Prepares content" to automatically initialize some fields?


  • Subject: Bindings "Prepares content" to automatically initialize some fields?
  • From: Christoffer Lernö <email@hidden>
  • Date: Tue, 4 Oct 2005 17:37:47 +0200

Playing around with CoreData I have a situation where object A has an optional relationship to object B, and object B has a mandatory reference to object A.

I use bindings to create object A, but when I create object B (using add: or similar to the NSArrayController) I want let the newly created object B automatically be initialized with the relationship A <-> B.

Since I am using bindings, it's easy to send A as a parameter to the add:, but the NSArrayController won't know what it is supposed to do with it --- or?

Can I get this to work with bindings and core-data without subclassing?


To recap:

Class A
optional relationship to B

Class B
mandatory relationship to A

An object of class A is first created using bindings. It will have no relation to any object of class B.

I now create object B (using bindings) and want both the new object of class B to have a relation to object of A, and object of A to establish a relation to object of B.


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