Swift - How to define core data context in OS X

Question

Thanks to online tutorials I have been using core data with swift and iOS. To define a context I have used

let context = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext

How do I define the context when writing an OS X application?

Prontto · Accepted Answer · 2015-04-27 08:40:58Z

1

I define it that way:

lazy var context: NSManagedObjectContext? = {
    let appDel = NSApplication.sharedApplication().delegate as! AppDelegate
    if let moc = appDel.managedObjectContext {
        return moc
    } else {
        return nil
    }
}()

answered Apr 27, 2015 at 8:40

Prontto

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1 Comment

Christopher Over a year ago

Thank you that helped me tremendously!

Yelims01 · Accepted Answer · 2015-07-19 16:33:15Z

0

You could also have done:

let context = (NSApplication.sharedApplication().delegate as AppDelegate).managedObjectContext

UIApplication has changed to NSApplication
'as!' changed to 'as'

answered Jul 19, 2015 at 16:33

Yelims01

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