UITablecontroller and UIViewController issues - Swift - ios

Question

I am new here and to coding and I need some help with a project that I'm currently stuck on.
I have built an app containing UITableView that first displays body areas (Gastro, cardio, respiratory, etc), the second displays more detailed features on the first (in gastro the table will display stomach, small intestine, colon, etc) and then the the UIViewController will have the more detailed info on the stomach etc.
I have this working all ok but one problem has arose. The UIViewController, regardless of which option is selected in the first table, displays the same info, i.e I get results for gastro even after selecting cardio etc.
The UIviewcotrollers have the storyboards identifiers G1, G2 etc as shown in 'Subchapters' under identities.
I want G1 and the rest of the G series to only display gastro info and then create new view controllers for cardio, C1, C2 etc and so on for the rest of the chapters.
Below is my code. I hope someone could help with this. I would really appreciate it!
import UIKit
class Chapters: UITableViewController {
var ChaptersArray = [String]()
var SubchaptersArray = [secondTable]()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// chapter names
ChaptersArray = ["Gastrointestinal","Cardiovascular","Respiratory","Central Nervous System", "Infections"]
// subcharpter names
SubchaptersArray = [secondTable(SecondTitle: ["Gas1", "Gas2", "Gas3", "Gas4"]),
secondTable(SecondTitle: ["Card1", "Card2", "Card3", "Card4"]),
secondTable(SecondTitle: ["Res1", "Res2", "Res3", "Res4"])]
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
override func tableView(tableview: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableview.dequeueReusableCellWithIdentifier("Cell") as UITableViewCell!
cell.textLabel?.text = ChaptersArray[indexPath.row]
return cell
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return ChaptersArray.count
}
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
let indexPath: NSIndexPath = self.tableView.indexPathForSelectedRow!
let destViewController = segue.destinationViewController as! Subchapters
var secondTableArrayTwo : secondTable
secondTableArrayTwo = SubchaptersArray[indexPath.row]
destViewController.SubChaptersArray = secondTableArrayTwo.SecondTitle
}
}
import UIKit
class Subchapters: UITableViewController {
var SubChaptersArray = [String]()
var identities = [String]()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
identities = ["G1", "G2", "G3", "G4"]
}
override func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return SubChaptersArray.count
}
override func tableView(tableview: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
let cell = tableview.dequeueReusableCellWithIdentifier("SecondCell") as UITableViewCell!
cell.textLabel?.text = SubChaptersArray[indexPath.row]
return cell
}
override func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let vcName = identities[indexPath.row]
let viewcontroller = storyboard?.instantiateViewControllerWithIdentifier(vcName)
self.navigationController?.pushViewController(viewcontroller!, animated: true)
}
}
I have searched google and here for an answer but could find nothing to help, so any explanations as to how to fix this problem would be great and much appreciated.
Thanks
Mark