For anyone following along, the following answers the question I had regarding adding "records" to a "table" using Core Data:
> Thus (psuedo coded for brevity): > > someObject = [NSEntityDescription insertNewObjectForEntityForName:object inManagedObjectContext:moc]; > [someObject setValue:@"val" forKey:@"foo"]; > [someObject setValue:@"val2" forKey:@"foo2"]; > > someObject = [...insert...]; > [someObject setValue:forKey:]; > [someObject setValue:forKey:]; > > someObject = [...insert...]; > [someObject setValue:forKey:]; > [someObject setValue:forKey:]; > > ... > > [NSManagedObjectContext save:]; When the -insert method is called, Core Data creates an instance of a new object for an entity and returns a pointer to that object. By calling -setValue:forKey: one can then fill in the data values for the required attributes. This is different from using default values for attributes as set by either the data model or via equivalent code. Those default values will be automatically populated when the object is created. Each time the -insert method is called, Core Data continues to create new instances of objects and return the pointers to them. someObject is only a variable that contains that pointer and does not influence the actual object to which it points other than to point to it. Thus, re-using someObject does not obviate the object previously pointed to. How Core Data manages the created objects isn't anything of concern - the objects are just managed and kept around in volatile memory. Once [NSManagedObjectContext save:] is called, those objects are then committed to the store. Many thanks to Jerry Krinock for confirming that and fleshing out my understanding. Peace, Love, and Light, /s/ Jon C. Munson II _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
