I have a Core Data entity in a Master-Detail view. In the detail view, I have a button that is bound to the createFoo: method of the selected object where Foo is the class name of the related entity. What I want to do is use this button to create a Foo and set its relationship programmatically.

I have found the section on creating NSManagedObjects in the Core Data Programming Guide and understand the NSMutableSet procedure of creating the new objects.

In my awakeFromInsert: method for the Foo class, I want to set attribute values based on the related entity. If it's null, I have some defaults, but if the relationship is present, I want to set some values equal to the corresponding attribute in the related entity as defaults.

Is awakeFromInsert: the best place to do this, or should I create another method to set those values based on the related entity?

Thanks for the help.

Jamie
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