Example
lazy var persistentContainer: NSPersistentContainer = {
let container = NSPersistentContainer(name: "ProjectName")
container.loadPersistentStores(completionHandler: { (storeDescription, error) in
if let error = error {
fatalError("Unresolved error \(error), \(error.userInfo)")
}
})
return container
}()
func saveContext () {
let context = persistentContainer.viewContext
do {
try context.save()
} catch {
let nserror = error as NSError
fatalError("Unresolved error \(nserror), \(nserror.userInfo)")
}
if context.hasChanges {
print("changes occured")
}else {
print("no changes occured")
}
}
