It seems like this should be straight forward but I have not been able to find a good example of it. I have a simple Core Data entity that I want to split into two separate entities. Apple's documentation mentions it at a high level (Mapping Overview), however, it is unclear what the actual mapping model should look like to associate the relationship to the new split out entity back to the original.
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OK, I have found my own answer to this one and have detailed it in this blog post: https://slalomdotcom.wordpress.com/2010/01/08/splitting-an-entity-in-a-coredata-migration/
Duncan Babbage
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Greg Martin
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I get a server not found error when I click on that link. Is it just me? – Stunner Oct 08 '11 at 00:23
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Awesome! Gave you mad up rep. – Stunner Oct 14 '11 at 01:13
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Just note how relationship is set back in second picture. And if actual Xcode project would help, I used it here: https://github.com/coodly/ios-gambrinus – JaanusSiim Aug 25 '15 at 18:30