SwiftUI ToDoList with checkboxes? - swift

Question

I want to write a ToDoList in swiftUI with core data. Everything works so far but I want to have a checkbox next to each item it Signify whether it is completed or not.
I have added a property isChecked:boolean in core data but I don't know how to properly read it from the database. How to use a Toggle() in my case?
struct ContentView: View {
#Environment(\.managedObjectContext) var context
#FetchRequest(fetchRequest: ToDoListItem.getAllToDoListItems())
var items: FetchedResults<ToDoListItem>
#State var text: String = ""
var body: some View {
NavigationView {
List {
Section (header: Text("NewItem")){
HStack {
TextField("Enter new Item.",text: $text)
Button(action: {
if !text.isEmpty{
let newItem = ToDoListItem(context: context)
newItem.name = text
newItem.createdAt = Date()
// current date as created
newItem.isChecked = false
do {
try context.save()
} catch {
print(error)
}
// to clear the textField from the previous entry
text = ""
}
}, label: {
Text("Save")
})
}// end of vstack
}
Section {
ForEach(items){ toDoListItem in
VStack(alignment: .leading){
// to have a checkbox
Button {
toDoListItem.isChecked.toggle()
} label: {
Label(toDoListItem.name!, systemImage: toDoListItem.isChecked ? "checkbox.square" : "square")
}
if let name = toDoListItem.name {
// Toggle(isOn: toDoListItem.isChecked)
Text(name)
.font(.headline)
}
//Text(toDoListItem.name!)
//.font(.headline)
if let createdAt = toDoListItem.createdAt {
//Text("\(toDoListItem.createdAt!)")
Text("\(createdAt)")
}
}
}.onDelete(perform: { indexSet in
guard let index = indexSet.first else {
return
}
let itemToDelete = items[index]
context.delete(itemToDelete)
do {
try context.save()
}
catch {
print(error)
}
})
}
}
.navigationTitle("To Do List")
}
}
}
struct ContentView_Previews: PreviewProvider {
static var previews: some View {
ContentView()
}
}
ToDoListItem.swift
class ToDoListItem: NSManagedObject,Identifiable {
#NSManaged var name:String?
#NSManaged var createdAt:Date?
#NSManaged var isChecked:Bool
// mapped to the entry properties in database
}
extension ToDoListItem {
static func getAllToDoListItems() -> NSFetchRequest<ToDoListItem>{
let request:NSFetchRequest<ToDoListItem> = ToDoListItem.fetchRequest() as!
NSFetchRequest<ToDoListItem>
// cast as todolist item
let sort = NSSortDescriptor(key: "createdAt", ascending: true)
// above order of sorting
request.sortDescriptors = [sort]
return request
}
}
Should isChecked be an optional as well?