but in delete operation we have no need to navigate another controller just click on button action will be performed
Where do you navigate to ? Is it UpdateViewController ?
Which button do you tap ?
Note: When you format code, take care to format in a single chunk. It is easier to read:
func deleteData(id:String){
let fetchRequest = NSFetchRequestNSManagedObject(entityName: "User")
fetchRequest.predicate = NSPredicate(format: "id = '\(id)'")
do
{
let test = try context.fetch(fetchRequest)
let objectToDelete = test[0]
context.delete(objectToDelete)
do {
try context.save()
}
catch(let error)
{
print(error.localizedDescription)
}
}
catch(let error)
{
print(error)
}
}
class SecondViewController: UIViewController,UITableViewDelegate,UITableViewDataSource {
var array = [DictionaryString,String]()
@IBOutlet weak var tableview: UITableView!
var id = ""
var obj = DictionaryString,String()
override func viewDidLoad() {
super.viewDidLoad()
self.tableview.delegate = self
self.tableview.dataSource = self
array = DataHandler.sharedInstance.fetch()
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) - Int {
return array.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) - UITableViewCell {
let obj = array[indexPath.row]
let cell = tableView.dequeueReusableCell(withIdentifier: "cell") as! TableViewCell
cell.usernameLabel.text = obj["username"]
cell.emailLabel.text = obj["email"]
cell.passwordLabel.text = obj["password"]
cell.updateBtn.addTarget(self, action: #selector(didTapUpdateBtn(sender:)), for: .touchUpInside)
cell.updateBtn.tag = indexPath.row
return cell
}
@objc func didTapUpdateBtn(sender:UIButton)
{
let obj = array[sender.tag]
let sb = UIStoryboard.init(name: "Main", bundle: nil)
let vc = sb.instantiateViewController(identifier: "update") as! UpdateViewController
vc.obj = obj
self.present(vc, animated: true, completion: nil)
}
