sGNsP7xh

1
2import UIKit
3import CoreData
4
5class ViewController: UIViewController {
6    @IBOutlet weak var username: UITextField!
7    @IBOutlet weak var password: UITextField!
8    var user : UserTbl?
9    var users :[UserTbl]=[]
10    override func viewDidLoad() {
11        
12        super.viewDidLoad()
13        let dirpath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true )
14        print(dirpath[0]
15    }
16
17    @IBAction func btnLogin(_ sender: UIButton) {
18        let appDel = UIApplication.shared.delegate as! AppDelegate
19        let moc = appDel.persistentContainer.viewContext
20        let fr = NSFetchRequest<UserTbl>(entityName: "UserTbl")
21
22        //fetch all user
23        do{
24            users = try moc.fetch(fr)
25        }
26        catch{
27            print(NSError.self)
28        }
29
30        //validate all user using for loop
31        for user in users {
32            if username.text == user.username && password.text == user.password{
33                navigate()
34            }
35            else{
36                print("Error")
37            }
38        }
39        
40    }
41    
42    func navigate(){
43        let next = storyboard?.instantiateViewController(withIdentifier: "cat") as! CategoryViewController
44        navigationController?.pushViewController(next, animated: true)
45    }
46    
47}
48
49