App Delegate - Load Core Data Swift - ios

Question

My app crashes every time using the abort function- core data. It crashes because of this code. What is wrong with it?
import UIKit
import CoreData
class MyWordsTableViewController: UITableViewController, NSFetchedResultsControllerDelegate {
var myList: Array<AnyObject> = []
override func viewDidLoad() {
super.viewDidLoad()
let appDel = UIApplication.sharedApplication().delegate as! AppDelegate
let context = appDel.managedObjectContext
let freq = NSFetchRequest(entityName: "List")
do {
try myList = context.executeFetchRequest(freq)
} catch {
print("error")
}
tableView.reloadData()

Answer 1

Delegate for tableview are not added in your code.
Add these in your view controller
class MyWordsTableViewController: UIViewController, UITableViewDataSource, UITableViewDelegate{
Add this code in your viewDidLoad
self.Tablename.registerClass(UITableViewCell.self, forCellReuseIdentifier: "Cell")
Tablename.dataSource = self
Tablename.delegate = self
searchBar.delegate = self
For core data try the following code
var appDel: AppDelegate = (UIApplication.sharedApplication().delegate as AppDelegate)
var context: NSManagedObjectContext = appDel.managedObjectContext!
var fetchRequest = NSFetchRequest(entityName: "List")
if let fetchResults = appDel.managedObjectContext!.executeFetchRequest(fetchRequest, error: nil) as? [NSManagedObject] {
if fetchResults.count != 0{
println(fetchResults)
}
}

Answer 2

Try this, worked for me (swift 2 Xcode 7 beta 5): (I did changes to fit your code)
import UIKit
import CoreData
var myList: Array<AnyObject> = []
class MyWordsTableViewController: UITableViewController, NSFetchedResultsControllerDelegate
{
override func viewDidLoad()
{
super.viewDidLoad()
}
override func viewDidAppear(animated:Bool)
{
//reference to app delegate
let appDel: AppDelegate = UIApplication.sharedApplication().delegate as! AppDelegate
//reference NSManaged object context
let context: NSManagedObjectContext = appDel.managedObjectContext!
let freq = NSFetchRequest(entityName: "List")
do
{
try myList = context.executeFetchRequest(freq)
NSLog("Number of rows (App): \(myList.count)")
} catch _ { NSLog("That went badly...") }
tableView.reloadData()
}
}