iOS: PrepareForSegue not working - ios

Question

I have a problem trying to pass data on to some other view controllers. I can successfully perform the segue, but the supplementary data I need doesn't make it through the segue.
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath){
/// Identify the row number
let rowNumber = indexPath.row
let section = indexPath.section
// Obtain the array of model names for the selected auto maker
let moviesForSelectedGenre: AnyObject? = dict_Genre_dict2[genres[section]]
dict2_Movie_MovieInfo = moviesForSelectedGenre as! Dictionary
let movieNumber:String = "\(rowNumber+1)"
movie = dict2_Movie_MovieInfo[movieNumber] as! [String]
youtubeID = movie[2]
movieTitle = movie[0]
performSegueWithIdentifier("showTrailer1", sender: self)
}
func add(sender: AnyObject) {
performSegueWithIdentifier("addMovie", sender: self)
}
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
if segue == "showTrailer1"{
// Obtain the object reference of the destination view controller
let trailerViewController: MovieTrailerViewController = segue.destinationViewController as! MovieTrailerViewController
//Pass the data object to the destination view controller object
trailerViewController.youTubeMovieTrailerID = youtubeID
trailerViewController.movieTitle = movieTitle
}
else if segue == "addMovie"{
let addMovieViewController: AddMovieViewController = segue.destinationViewController as! AddMovieViewController
addMovieViewController.delegate = self
}
}
If anyone can identify why this is happening, that would be fantastic. Thanks!

Answer 1

You're not comparing with
segue.identifier
in
if segue == "showTrailer1"{
and
else if segue == "addMovie"{
Adding .identifier after segue will fix your problem.

Answer 2

In prepareForSegue you have to use segue.identifier to check which segue has been called
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
if segue.identifier == "showTrailer1"{
// Obtain the object reference of the destination view controller
let trailerViewController: MovieTrailerViewController = segue.destinationViewController as! MovieTrailerViewController
//Pass the data object to the destination view controller object
trailerViewController.youTubeMovieTrailerID = youtubeID
trailerViewController.movieTitle = movieTitle
}
else if segue.identifier == "addMovie"{
let addMovieViewController: AddMovieViewController = segue.destinationViewController as! AddMovieViewController
addMovieViewController.delegate = self
}
}