     var purchases = [Purchase]()
     
     @IBAction func unwindToPurchaseList(segue: UIStoryboardSegue) {
-        self.loadInitialData()
     }
     
     func costTotal() -> Double {

        self.refreshControl!.addTarget(self, action: #selector(PurchaseListTableViewController.refresh(_:)), forControlEvents: UIControlEvents.ValueChanged)
        
        self.presentBlank()
        self.loadInitialData()
        
        // Uncomment the following line to preserve selection between presentations
        // self.clearsSelectionOnViewWillAppear = false

        // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
        // self.navigationItem.rightBarButtonItem = self.editButtonItem()
    }

    override func didReceiveMemoryWarning() {

    func refresh(sender: AnyObject) {
        self.loadInitialData()
        self.refreshControl!.endRefreshing()
        self.presentData()
    }
    
    func presentBlank() {
