Table View To seperate view with segue - arrays

Question

This has stumped me and Ive tried a few ways of doing of tutorials and on stack answers but its still not building.
So basically:
Im getting core data and then placing that into an array. (works fine)
After that Im just display first and last name in the cells (works fine)
User taps on cell to see athleteDetalView
I have placed a few print statements to see where its going wrong.
Thanks In advance for your input.
import UIKit
import CoreData
class athleteViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
//labels
#IBOutlet weak var athleteLabel: UILabel!
//buttons
#IBOutlet weak var athleteCreate: UIBarButtonItem!
#IBOutlet weak var athleteTableView: UITableView!
var athleteArray:[Athlete] = []
var myIndex = 0
override func viewDidLoad() {
super.viewDidLoad()
athleteTableView.delegate = self
athleteTableView.dataSource = self
self.fetchData()
self.athleteTableView.reloadData()
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return athleteArray.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "athleteName", for: indexPath)
let name = athleteArray[indexPath.row]
cell.textLabel!.text = name.firstName! + " " + name.lastName!
let athleteName = name.firstName!
let lastName = name.lastName!
let age = name.age!
let sport = name.sport!
let email = name.email!
print(athleteName)
print(lastName)
print(age)
print(sport)
print(email)
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
myIndex = indexPath.row
let currentCell
//let storyboard = UIStoryboard(name: "Main", bundle: nil)
//let destination = storyboard.instantiateViewController(withIdentifier: "athleteDetailsViewController") as! athleteDetailsViewController
//let athName = athleteArray[myIndex]
//testdata
//test data
performSegue(withIdentifier: "athleteDetailsSegue", sender: self)
//self.navigationController?.pushViewController(destination, animated: true)
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if (segue.identifier == "athleteDetailsSegue") {
var destination = segue.destination as! athleteDetailsViewController
destination.firstNameString = athleteName
destination.lastNameString = lastName
destination.ageString = age
destination.sportString = sport
destination.emailString = email
//destination.getImage = name.image
}
}
func fetchData(){
let context = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
do{
athleteArray = try context.fetch(Athlete.fetchRequest())
}
catch{
print(error)
}
}

Answer 1

The variables that you are setting in tableView:cellForRowAt:indexPath: are local variables and are not available in the function prepareForSegue:. Try to declaring the variables at the top as properties of the class.