Passing Firebase Data from tableview to ViewController - uitableview

Question

I am having issues displaying the make and model of the selected cell in another view controller connected by a segue. The Cells display the Vin Number and I want the make and model info for that specific vin number passed to another ViewController. I have attempted to set up passing the values but can not get it to work. Can someone take a look and see if they can spot where I went wrong?
Here is what my firebase database looks like:
Vehicles: {
5UXKR0C34H0X82785: {
VehicleInfo: {
make:"toyota",
model:"corolla",
VinNumber: "5UXKR0C34H0X82785"
}
}
}
Here is my Vehicle model class
import Foundation
import FirebaseDatabase
struct VehicleModel {
var Make: String?
var Model: String?
var VinNumber: String?
init(Make: String?, Model: String?, VinNumber: String?){
self.Make = Make
self.Model = Model
self.VinNumber = VinNumber
}
init(snapshot: DataSnapshot) {
let snapshotValue = snapshot.value as! [String: AnyObject]
VinNumber = snapshotValue["VinNumber"] as? String
Make = snapshotValue["Make"] as? String
Model = snapshotValue["Model"] as? String
}
}
Here is my view controller code
import UIKit
import Firebase
import FirebaseDatabase
class InventoryTableViewController: UITableViewController{
var ref: DatabaseReference!
var refHandle: UInt!
var userList = [VehicleModel]()
let cellId = "cellId"
override func viewDidLoad() {
super.viewDidLoad()
ref = Database.database().reference()
tableView.delegate = self
tableView.dataSource = self
tableView?.register(UITableViewCell.self, forCellReuseIdentifier:
"cellId")
fetchUsers()
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection
section: Int) -> Int {
return userList.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath:
IndexPath) -> UITableViewCell {
// Set cell contents
let cell = tableView.dequeueReusableCell(withIdentifier: "cellId", for:
indexPath) as UITableViewCell
let eachvehicle = userList[indexPath.row]
cell.textLabel!.text = "\(String(describing: eachvehicle.VinNumber))"
return cell
}
func fetchUsers(){
refHandle = ref.child("Vehicles").observe(.childAdded, with: {
(snapshot) in
if let dictionary = snapshot.childSnapshot(forPath:
"VehicleInfo").value as? [String: AnyObject] {
print(dictionary)
let VinNumber = dictionary["VinNumber"]
let Make = dictionary["Make"]
let Model = dictionary["Model"]
self.userList.insert(VehicleModel(Make: Make as? String, Model:
Model as? String, VinNumber: VinNumber as? String), at: 0)
self.tableView.reloadData()
}
})
}
}
override func tableView(_ tableView: UITableView, didSelectRowAt indexPath:
IndexPath) {
let storyboard = UIStoryboard(name: "Main", bundle: Bundle.main)
let destination = storyboard.instantiateViewController(withIdentifier:
"AdditionalInfoViewController") as! AdditionalInfoViewController
navigationController?.pushViewController(destination, animated: true)
performSegue(withIdentifier: "toAdditionalInfo", sender: self)
let row = indexPath.row
print("working so far ")
let indexPath = tableView.indexPathForSelectedRow!
let currentCell = tableView.cellForRow(at: indexPath)! as UITableViewCell
makeToPass = currentCell.Model
modelToPass = currentCell.Make
}
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
if segue.identifier == "toMapView" {
var viewController = segue.destination as!
AdditionalInfoViewController
viewController.makeToPass = makeToPass
viewController.modelToPass = modelToPass
}
}
structure for variables in my AdditionalInfoView Controller
var passedValue: String?
var latitudePassedValue: String?
var longitudePassedValue: String?

Answer 1

The problem seems to be in the parsing of the data from the database. The structure has make and model all lower case:
// ...
make:"toyota",
model:"corolla",
// ...
But in the parsing method you're addressing it with the first letter in uppercase:
// ...
Make = snapshotValue["Make"] as? String // "Make"
Model = snapshotValue["Model"] as? String // "Model"
// ...