“SwiftData inheritance relationship”

I am writing a Mac app using Core Data. I have a model set up with 10 Entities and a number of relationships. Four of the entities will hold 99% of the records. It works great. I wanted to do some performance testing, so wrote code to populate the database with 82,000 managed objects in one of the entities. The others have less with the second highest containing 33,000. The issue I have is that after populating the database and having saved, then when I call the [context save] method every time thereafter, the save takes over 10 seconds, even if I have modified only one attribute in one object. Why is this?The database is about 45MB in total size. It seems like Core Data is saving the whole database instead of just updating the one object.

I was working on a app with Xcode 6/iOS 8 for awhile now. The other day iOS 9 beta 4 and a new Xcode 7 beta was released, and I thought it would be stable enough to update my app to use Swift 2 (100% Swift project). The app supports iOS 8 and 9 now. I ran the app to my iOS 8 device, and noticed a strange effect on NSFetchedResultsController on iOS 8 only (doesn't happen on iOS 9 with Swift 2 for some reason).So here is my implementation of NSFetchedResultsController,func setupReturningShowsFetchedResultsController() { let fetchRequest = NSFetchRequest(entityName: TVShow) let titleSort = NSSortDescriptor(key: title, ascending: true) fetchRequest.sortDescriptors = [titleSort]; let statusPredicate1 = NSPredicate(format: status == 'returning series') let statusPredicate2 = NSPredicate(format: status == 'in production') let statusPredicates = NSCompoundPredicate(orPredicateWithSubpredicates: [statusPredicate1, statusPredicate2]) let predicate = NSPredicate(format: upcomingEpisode == nil) fetchRequest.predicate = N

Given a class TopViewController that has an @IBAction that prints Wassup Y'all to the screen, when I create another class BottomViewController that inherits from TopViewController, then I can use the Storyboard to connect scene elements from BottomViewController to Outlets and/or Actions in TopViewController.As of yesterday, this has suddenly stopped working and I have no idea what's wrong.I've triedCleaningDeleting DerivedDataRestarting XcodeRestarting MacbookNothing works. Any idea how to get out of this state?

My first screen is a navigation controller then comes my login view and if I log in and i see my Slide-out Sidebar Menu. I log in with iOS7 but backbutton is superimposed on menu-slide but i can see my menu-slide in iOS 8 and it does not appear the backbutton.When I pass from login to Slide-out Sidebar Menu view, I use segue show detail not inherit the backbutton.

I am working with Swift 2.0 and I have a hierarchy of protocols with this layout.protocol Root { var parent: Self? { get } } func == <T: Main> (left: T, right: T) -> Bool { return left.item.text == right.item.text } protocol Main: Root { var item: Item { get set } } protocol Item: Root { var text: String { get set } }The problem I have is that on line 10 var item: Item { get set } I get the error Protocol 'Item' can only be used as a generic constraint because it has Self or associated type requirements. I can't seem to figure out how to write line 10 to be rid of the error. I tried using a typealias to set a placeholder on line 10 and then line 6 of the infix function return left.item.text == right.item.text throws an error because it doesn't know what type the item variable is. I can't seem to figure out how to define the item variable since it inherits from Root just as Main does. Am I missing something? Any help is greatly appreciated.

Every time I launch my photo editing extension, I'm getting the following error:Failed to inherit CoreMedia permissions from 12501: (null)It happens even when I create a totally new app and brand new extension. I'm running Xcode 7 Beta 4.Has anyone else seen this?

I can`t fined swift manual with more then 1 entity.For example, i have 2 friends: Jon and David. I created this model core data:1 entity: Frends2 entity: MemoI want save memo for Jon: let entityDescription = NSEntityDescription.entityForName(Memo, inManagedObjectContext: managedObjectContext!) let act = Memo(entity: entityDescription!, insertIntoManagedObjectContext: managedObjectContext) act.text = Gave me 2 books act.frend.name = Jon var error: NSError? managedObjectContext?.save(&error) if let err = error { println(err.localizedFailureReason) } else { println(Saved) }But I got message nil???