View Full Version : Core Data Regeneration

Sep 6, 2012, 05:51 AM
When creating subclasses of NSManagedObjects and replacing existing subclasses, using XCodes autoregenerating tool, are category methods reinserted into the new subclasses?

If not, how do you preserve any methods you insert into these classes?

Sep 6, 2012, 10:50 AM
XCode overwrites the generated files each type you run the "Create NSManagedObject subclasses..." command.

So, if you want to add your own methods to NSManagedObject subclasses, it's best to put them in a category (http://en.wikipedia.org/wiki/Objective-C#Categories), in a separate file. That way, XCode won't overwrite them when you regenerate.