Passing Firebase Data from one view controller to detail view controller - ios

Question

I am looking to load data from my Firebase Database into a tableview in my main view controller and then pass that data to be more descriptive to a second view controller as my detail view controller. I am getting stuck because when i do click on the cell it will not segue to my other view controller and I am not sure how to get the data to pass. I want just the name on the first view controller and then the other data to populate on the detail view controller.
My Main View Controller--
import UIKit
import Foundation
import Firebase
import FirebaseDatabase
class ViewController: UIViewController {
var table = [FacStaffInfo]()
var ref: DatabaseReference!
#IBOutlet weak var Tableview: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
ref = Database.database().reference().child("users")
ref.observe(DataEventType.value, with: {(snapshot) in
if snapshot.childrenCount > 0 {
self.table.removeAll()
for user in snapshot.children.allObjects as! [DataSnapshot] {
let object = user.value as? [String: AnyObject]
let title = object?["title"]
let name = object?["name"]
let email = object?["email"]
let phone = object?["phone"]
let office = object?["office"]
let bio = object?["bio"]
let user = FacStaffInfo(title: title as! String, name: name as! String, email: email as! String, phone: phone as! Int, office: office as! String, bio: bio as! String)
self.table.append(user)
self.Tableview.reloadData()
}
}
})
}
}
extension ViewController: UITableViewDataSource, UITableViewDelegate {
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return table.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "userCell") as! TableViewCell
let user: FacStaffInfo
user = table[indexPath.row]
cell.titleLabel?.text = user.title
cell.nameLabel?.text = user.name
cell.emailLabel?.text = user.email
cell.phoneLabel?.text = String(user.phone)
cell.officeLabel?.text = user.office
cell.bioLabel?.text = user.bio
return cell
}
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "showDetail" {
if let indexPath = Tableview.indexPathForSelectedRow {
let destinationController = segue.destination as! InfoViewController
destinationController.FacStaffData = [table[indexPath.row]]
}
}
}
}
My Detail View controller--
import UIKit
import Firebase
import FirebaseDatabase
class InfoViewController: UIViewController {
var FacStaffData = [FacStaffInfo]()
#IBOutlet weak var titleLabel: UILabel!
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var emailLabel: UILabel!
#IBOutlet weak var phoneLabel: UILabel!
#IBOutlet weak var officeLabel: UILabel!
#IBOutlet weak var bioLabel: UILabel!
//var title = ""
var name = ""
var email = ""
var phone = ""
var office = ""
var bio = ""
override func viewDidLoad() {
super.viewDidLoad()
titleLabel.text = title
nameLabel.text = name
emailLabel.text = email
phoneLabel.text = phone
officeLabel.text = office
bioLabel.text = bio
print(titleLabel)
}
}
My info class--
import Foundation
import Firebase
import FirebaseDatabase
class FacStaffInfo {
var title: String
var name: String
var email: String
var phone: Int
var office: String
var bio: String
init(title: String, name: String, email: String, phone: Int, office: String, bio: String) {
self.title = title;
self.name = name;
self.email = email;
self.phone = phone;
self.office = office;
self.bio = bio
}
}
and my tableview cell--
import UIKit
import Firebase
import FirebaseDatabase
class TableViewCell: UITableViewCell {
#IBOutlet weak var titleLabel: UILabel!
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var emailLabel: UILabel!
#IBOutlet weak var phoneLabel: UILabel!
#IBOutlet weak var officeLabel: UILabel!
#IBOutlet weak var bioLabel: UILabel!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}

Answer 1

It looks like didSelectRowAt just implements didSelectRowAt again without calling anything.
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}
}
try again with:
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
performSegue(withIdentifier: "showDetail", sender: self)
}
Updated for followup:
The InfoViewController is using the default values. When you prepare the segue, you put the information into FacStaffData. This should do the trick.
class InfoViewController: UIViewController {
var FacStaffData = [FacStaffInfo]()
#IBOutlet weak var titleLabel: UILabel!
#IBOutlet weak var nameLabel: UILabel!
#IBOutlet weak var emailLabel: UILabel!
#IBOutlet weak var phoneLabel: UILabel!
#IBOutlet weak var officeLabel: UILabel!
#IBOutlet weak var bioLabel: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
titleLabel.text = FacStaffData.title
nameLabel.text = FacStaffData.name
emailLabel.text = FacStaffData.email
phoneLabel.text = FacStaffData.phone
officeLabel.text = FacStaffData.office
bioLabel.text = FacStaffData.bio
print(titleLabel)
}
}