Retrieve Random String from Core Data in Swift - ios

Question

I've searched for this answer but have come up empty handed. For some reason I'm drawing a blank on how to retrieve a random entry from a Core Data String attribute. I have everything else working - create, update, delete... but can't seem to get a handle on getting a random entry from the stack.
Feeling confused on this. Here is my code from my table view controller that mostly manages the core data.
import UIKit
import CoreData
class TaskManagerViewController: UITableViewController, NSFetchedResultsControllerDelegate {
let managedObjectContext = (UIApplication.sharedApplication().delegate as AppDelegate).managedObjectContext
var fetchedResultController: NSFetchedResultsController = NSFetchedResultsController()
override func viewDidLoad() {
super.viewDidLoad()
fetchedResultController = getFetchedResultController()
fetchedResultController.delegate = self
fetchedResultController.performFetch(nil)
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject!) {
if segue.identifier == "edit" {
let cell = sender as UITableViewCell
let indexPath = tableView.indexPathForCell(cell)
let taskController:TaskDetailViewController = segue.destinationViewController as TaskDetailViewController
let task:Tasks = fetchedResultController.objectAtIndexPath(indexPath!) as Tasks
taskController.task = task
}
}
func getFetchedResultController() -> NSFetchedResultsController {
fetchedResultController = NSFetchedResultsController(fetchRequest: taskFetchRequest(), managedObjectContext: managedObjectContext!, sectionNameKeyPath: nil, cacheName: nil)
return fetchedResultController
}
func taskFetchRequest() -> NSFetchRequest {
let fetchRequest = NSFetchRequest(entityName: "Tasks")
let sortDescriptor = NSSortDescriptor(key: "desc", ascending: true)
fetchRequest.sortDescriptors = [sortDescriptor]
return fetchRequest
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
// #pragma mark - Table view data source
override func numberOfSectionsInTableView(tableView: UITableView) -> Int {
let numberOfSections = fetchedResultController.sections?.count
return numberOfSections!
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
let numberOfRowsInSection = fetchedResultController.sections?[section].numberOfObjects
return numberOfRowsInSection!
}
override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as UITableViewCell
let task = fetchedResultController.objectAtIndexPath(indexPath) as Tasks
cell.textLabel.text = task.desc
return cell
}
override func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
let managedObject:NSManagedObject = fetchedResultController.objectAtIndexPath(indexPath) as NSManagedObject
managedObjectContext?.deleteObject(managedObject)
managedObjectContext?.save(nil)
}
func controllerDidChangeContent(controller: NSFetchedResultsController!) {
tableView.reloadData()
}
}

Answer 1

func randomTask() -> Tasks {
let count=UInt32(fetchedResultController.fetchedObjects!.count)
let index=Int(arc4random_uniform(count))
return fetchedResultsController.fetchedObjects[index] as Tasks
}

Answer 2

This is the code that ultimately delivered the results I was looking for:
(I'm new at stack overflow so not sure how to select correct answer here.)
func randomTask() -> Tasks {
let count = UInt32(fetchedResultController.fetchedObjects!.count)
let index = Int(arc4random_uniform(count))
var results = fetchedResultController.fetchedObjects![index] as Tasks
answerLabel.text = results.valueForKey("desc") as NSString
return results
}