CoreData Cheat Sheet

//Entity = SaveData , Attribute = mydata , First Text Filed Name : textField1 ,Second Text Field Name: textField2
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////

//1.Save the Data
//Refer to Appdelegate

let appDelegate = UIApplication.shared.delegate as! AppDelegate


//Create Context

let context = appDelegate.persistentContainer.viewContext

//Create Entity AND NEW Entity


let entity = NSEntityDescription.entity(forEntityName: "SaveData", in: context)
let newSaveData = NSManagedObject(entity: entity!, insertInto: context)


//Create NEW Record

newSaveData.setValue(textField1.text, forKey: "mydata")

//Save it

do {          
   try context.save()       
  } catch {       
   print("Failed saving data")
}

//2.	Retrieve Data

let request = NSFetchRequest<NSFetchRequestResult>(entityName: "SaveData")
        request.returnsObjectsAsFaults = false
        do {
            let result = try context.fetch(request)
            for data in result as! [NSManagedObject] {
               textField2.text = (data.value(forKey: "mydata") as! String)
          }
            
        } catch {
            
            print("Failed")
        }