Passing data from text field to Firebase - ios

Question

I am getting error in ToDoViewController.Swift here is the overall code:
I am makeing a simple app for taking orders from customers. and orders will store in Firebase.
View Controller.Swift
import UIKit
import Firebase
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource {
#IBOutlet weak var tableView: UITableView!
var todoList = [Todo]()
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
loadData()
}
func loadData() {
self.todoList.removeAll()
let ref = FIRDatabase.database().reference()
ref.child("todoList").observeSingleEvent(of: .value, with: { (snapshot) in
if let todoDict = snapshot.value as? [String:AnyObject] {
for (_,todoElement) in todoDict {
print(todoElement);
let todo = Todo()
todo.name = todoElement["name"] as? String
todo.message = todoElement["message"] as? String
todo.reminderDate = todoElement["date"] as? String
self.todoList.append(todo)
}
}
self.tableView.reloadData()
}) { (error) in
print(error.localizedDescription)
}
}
//MARK: TableView datasource
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return self.todoList.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "ToDoCell")
cell!.textLabel?.text = todoList[indexPath.row].name
return cell!
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
}
}
ToDoViewController
import UIKit
import Firebase
class ToDoViewController: UIViewController {
var todo:Todo?
#IBOutlet weak var nameField: UITextField!
#IBOutlet weak var messageField: UITextField!
#IBOutlet weak var dateFormatter: UIDatePicker!
#IBAction func Done(_ sender: Any) {
if todo == nil {
todo = Todo()
}
// first section
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd/MM/yyyy hh:mm"
todo?.name = self.nameField.text
todo?.message = self.messageField.text
todo?.reminderDate = dateFormatter.string(from: self.dateFormatter.date)
//second section
let ref = FIRDatabase.database().reference()
let key = ref.child("todoList").childByAutoId().key
let dictionaryTodo = [ "name" : todo!.name! ,
"message" : todo!.message!,
"date" : todo!.reminderDate!]
let childUpdates = ["/todoList/\(key)": dictionaryTodo]
ref.updateChildValues(childUpdates, withCompletionBlock: { (error, ref) -> Void in
self.navigationController?.popViewController(animated: true)
})
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let todoVC = self.storyboard!.instantiateViewController(withIdentifier: "ToDoVC") as! ToDoViewController
todoVC.todo = todoList[indexPath.row]
self.navigationController?.pushViewController(todoVC, animated: true)
}
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
if self.todo != nil {
nameField.text = self.todo?.name
messageField.text = self.todo?.message
let dateFormatter = DateFormatter()
dateFormatter.dateFormat = "dd/MM/yyyy hh:mm"
let date = dateFormatter.date(from: self.todo!.reminderDate!)
datePicker.date = date!
}
}
}
Todo.Swift
import UIKit
class Todo: NSObject {
var name :String?
var message: String?
var reminderDate: String?
// id which is set from firebase to uniquely identify it
var uniqueId:String?
}

Answer 1

Something is wrong with your code:
Use of un-resolved identifier 'todoList':
todoList is declared in View Controller.Swift and you cannot use it in ToDoViewController.
Cannot assign to property: 'date' is a method:
In the code datePicker is undefined and #IBOutlet weak var dateFormatter: UIDatePicker! should be:
#IBOutlet weak var datePicker: UIDatePicker!
AND In the image dateFormatter.date = date! should be:
datePicker.date = date!