I would like to display a list of objects queried from SwiftData, each objects having a Toggle. I obviously need a bool for each object for the state of the toggle. The usual way of doing things is to put a isChecked member in the Student object, but I can’t (the actual code is worse as I don’t have only two courses, maths and physics, but a list of courses coming from a query from the database). Of course, a student can appear in many different courses, so I can’t even have one isChecked in the Student object that could work for all the courses.

@Model
final class Student {
  var name: String = ""
  ...
}

var body: some View {
  List {
    Section("Maths") {
      ForEach(mathStudents(class: class)) { student in
        HStack{
          Text(student.name)
          Toggle(isOn: ???) {}.onChange(of: ???) { oldValue, newValue in
            ...some code...
          }
        }
      }
    }
    Section("Physics") {
      ForEach(physicsStudents(class: class)) { student in
        HStack{
          Text(student.name)
          Toggle(isOn: ???) {}.onChange(of: ???) { oldValue, newValue in
            ...some code...
          }
        }
      }
    }
  }
}

var mathStudents: [Student] {
  ...        
}

var physicsStudents: [Student] {
  ...        
}

So my question, is : Where can I put my family of bool for the toggles and how can I initialize them ?