Swift: Prepare for segue not passing data - swift3

Question

I have got a collection view inside a table view (Netflix App Style). I followed this tutorial: https://www.thorntech.com/2016/01/scrolling-in-two-directions-like-netflix-part-2-making-api-calls/
Now I want to implement a function that whenever I click on a collection view, it will pass the employee's name to the next view controller.
Here is my code:
import UIKit
class CategoryRow: UITableViewCell, UICollectionViewDataSource {
#IBOutlet weak var collectionView: UICollectionView!
var jobpost:JobPosition?
var employee: Employee?
var myname = ""
func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
return jobpost!.Employees.count
}
func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "videoCell", for: indexPath) as! EmployeeCell
cell.employeephoto.image = UIImage(named: "spanner")
cell.employeename.text = jobpost?.Employees[indexPath.row].name
return cell
}
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
let myname = jobpost?.Employees[indexPath.row].name
//print(myname)
}
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let EmployeeDetailPage = segue.destination as? EmployeeDetailViewController
EmployeeDetailPage?.employeename = myname
print(myname)
}
Now my problem is, the whole PrepareForSegue function didn't actually run. The app runs normally without any error but the data just didn't pass through? (i.e. the print(myname) didn't actually print anything).
Is there something I missed out? Very much appreciated.

Answer 1

Step 1
Create a global variable in your CategoryRow
var myname: String!
Step 2
Change the didSelectItemAt func like below
func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) {
myname = jobpost?.Employees[indexPath.row].name
performSegue(withIdentifier: "EmployeeDetailViewController", sender: myname)
}
Step 3
Create a variable in EmployeeDetailViewController
var employeename: String!
Step 4
Give a identifier to your segue. Here I give "EmployeeDetailViewController"
Then change the prepareForSegue func like below
func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
if segue.identifier == "EmployeeDetailViewController" {
if let EmployeeDetailVC = segue.destination as? EmployeeDetailViewController {
EmployeeDetailVC.employeename = myname
}
}
}

Answer 2

It looks like your problem is that you are setting a local let constant called myname in your collectionView(_:didSelectItemAt:) method instead of setting your class's myname property.
let myname = jobpost?.Employees[indexPath.row].name
should be:
myname = jobpost?.Employees[indexPath.row].name