Inserting attribute from property (CoreData) using multiple UIViewControllers

Question

I'm having a problem with finding a solution how to pass the info from an attribute that is saved in one view controller -> NSManagedObject into a label that is located in another UIViewController. The issue is that it says it can't convert it to String....and I thought there's going to be a simple GET function but so far couldn't find anything

Edit: NOTE - I am doing the saving in UIViewControllerACCOUNT and wish to call the data in the UIViewControllerSETTINGS

![left UIVcont = save. right UIViewCont = call -> format label]: https://i.stack.imgur.com/VjNo2.png

  override func viewWillAppear(animated: Bool) {
    super.viewWillAppear(animated)

    //1
    let appDelegate =
    UIApplication.sharedApplication().delegate as AppDelegate

    let managedContext = appDelegate.managedObjectContext!

    //2
    let fetchRequest = NSFetchRequest(entityName:"Account")

    //3
    var error: NSError?

    let fetchedResults = managedContext.executeFetchRequest(fetchRequest, error: &error) as [NSManagedObject]?


    if fetchedResults != nil {

// HERE i want the code to insert the data from CoreData into the label. For example the data from the Entity Account with the attribute "name" into the NameLabel... If i do something like

let account = fetchRequest.valueForKey("name") as String ---> Ends up throwing error *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[ valueForUndefinedKey:]: this class is not key value coding-compliant for the key name.' NameLabel.text = account

    } else {
        println("Could not fetch \(error), \(error!.userInfo)")
    }
}

How do i pass the info from CoreData - Entity.attribute -> Label.text ?

Edit: When i try to set it it says [NSObject: AnyObject] is not convertible to 'String' Edit 2: The attributes (name, age, ...) are all set to String

Answer 1

The fetchedResults returned by the executeFetchRequest is an array (even if there is one - or no - objects matching the fetch request). So you need first to extract the individual NSManagedObjects from the array. Assuming you want the first item (index 0), you could use:

    if let resultsArray = fetchedResults {
        if resultsArray.count > 0 {
            let myAccount = resultsArray[0] as NSManagedObject
            nameLabel.text = myAccount.valueForKey("name") as String?
            // Likewise for the other labels
        } else {
            println("No results from fetch request.")
        }
    }

If your Account entity is a subclass of NSManagedObject, then you can replace NSManagedObject in line 3 with Account.