         print("insertedObjects: \(insertedObjects)")
     }
 
-    func setUpRefreshControl() {
-        refreshControl = UIRefreshControl()
-        refreshControl?.addTarget(self, action: "fetchNewData", forControlEvents: .ValueChanged)
-    }
-
-    // MARK: Networking methods
-
-    func fetchNewData() {
+    private func fetchNewData() {
         networking.fetchItems { _ in
             self.fetchCurrentObjects()
 

class ViewController: UITableViewController {
    let CellIdentifier = "CellID"

    let dataStack: DATAStack
    lazy var networking: Networking = { [unowned self] in Networking(dataStack: self.dataStack) }()
    var items = [Data]()

    // MARK: Initializers

        super.viewDidLoad()

        title = "AppNet"
        tableView.registerClass(UITableViewCell.self, forCellReuseIdentifier: CellIdentifier)

        refreshControl = UIRefreshControl()
        refreshControl?.addTarget(self, action: "fetchNewData", forControlEvents: .ValueChanged)

        fetchCurrentObjects()
        fetchNewData()

        NSNotificationCenter.defaultCenter().addObserver(self, selector: "changeNotification:", name: NSManagedObjectContextObjectsDidChangeNotification, object: self.dataStack.mainContext)
    }

    // MARK: Private methods

    private func changeNotification(notification: NSNotification) {
        let updatedObjects = notification.userInfo?[NSUpdatedObjectsKey]
        let deletedObjects = notification.userInfo?[NSDeletedObjectsKey]
        let insertedObjects = notification.userInfo?[NSInsertedObjectsKey]
