////////////////////// CORE DATA ////////////////////////

lazy var fetchedResultsController: NSFetchedResultsController<Person> = {
    let managedContext = CoreDataManager.sharedManager.persistentContainer.viewContext

    let fetchRequest = NSFetchRequest<Person>(entityName: "Person")

    let sortDescriptor = NSSortDescriptor(key: "name", ascending: false)
    fetchRequest.sortDescriptors = [sortDescriptor]

    let fetchedResultsController = NSFetchedResultsController<Person>(fetchRequest: fetchRequest, managedObjectContext: managedContext, sectionNameKeyPath: nil, cacheName: nil)
       fetchedResultsController.delegate = self

    return fetchedResultsController
  }()

func

func controller(_ controller: NSFetchedResultsController<NSFetchRequestResult>, didChange anObject: Any, at indexPath: IndexPath?, for type: NSFetchedResultsChangeType, newIndexPath: IndexPath?) {
    reloadData()
}

////////////////////// REALM ////////////////////////?



lazy var results = try! Realm().objects(Person.self).sorted("name", ascending: false)
var token = results.observe { change in

    reloadData()

}