// MARK: - Bulk actions (episode 11)
VStack(alignment: .leading) Text(task.title ?? "") .strikethrough(task.isCompleted, color: .gray) if let due = task.dueDate Text("Due: \(due, formatter: dateFormatter)") .font(.caption) .foregroundColor(.secondary)
init(context: NSManagedObjectContext = PersistenceController.shared.container.viewContext) self.context = context fetchTasks() // Observe Core Data changes automatically (optional) NotificationCenter.default.publisher(for: .NSManagedObjectContextObjectsDidChange, object: context) .sink [weak self] _ in self?.fetchTasks() .store(in: &cancellables) swift to-do list 11 crack
// MARK: - Helper CRUD
func fetchTasks() let request: NSFetchRequest<TaskItem> = TaskItem.fetchRequest() request.sortDescriptors = [NSSortDescriptor(keyPath: \TaskItem.creationDate, ascending: false)] do tasks = try context.fetch(request) catch print("Fetch error: \(error.localizedDescription)") // MARK: - Bulk actions (episode 11) VStack(alignment:
func delete(at offsets: IndexSet) offsets.map tasks[$0] .forEach PersistenceController.shared.delete($0)
func toggleCompletion(_ task: TaskItem) PersistenceController.shared.toggleCompletion(task) import SwiftUI import Combine private init(inMemory: Bool =
The PersistenceController is the single source of truth for the data layer. Episode 11 often adds a deleteAllCompleted() helper for bulk‑operations. import SwiftUI import Combine
private init(inMemory: Bool = false) container = NSPersistentContainer(name: "ToDoModel") if inMemory container.persistentStoreDescriptions.first?.url = URL(fileURLWithPath: "/dev/null") container.loadPersistentStores (_, error) in if let error = error as NSError? fatalError("Unresolved Core Data error: \(error), \(error.userInfo)") container.viewContext.mergePolicy = NSMergeByPropertyObjectTrumpMergePolicy container.viewContext.automaticallyMergesChangesFromParent = true
// MARK: - CRUD wrappers
var body: some View NavigationStack Form Section(header: Text("Task")) TextField("Title", text: $title) Section Toggle("Set due date", isOn: Binding( get: showDatePicker , set: showDatePicker = $0; if !$0 dueDate = nil )) if showDatePicker DatePicker("Due", selection: Binding( get: dueDate ?? Date() , set: dueDate = $0 ), displayedComponents: .date) .navigationTitle("New Task") .toolbar ToolbarItem(placement: .cancellationAction) Button("Cancel") dismiss() ToolbarItem(placement: .confirmationAction) Button("Save") onSave(title, dueDate) dismiss() .disabled(title.trimmingCharacters(in: .whitespaces).isEmpty)