Thank you so much for your suggested solutions @Nevs! The third option that check modelContext == nil seems to work for me on iOS 18.
For example this works for me
var body: some View {
Text("The school has \(school.students.count) students")
Button("Delete school", action: {
context.delete(school)
try! context.save()
})
}
@Model SchoolModel {
@Relationship(deleteRule: .cascade, inverse: \StudentModel.school)
var swiftDataStudents: [StudentModel]? = []
}
var students: [StudentModel] {
set { swiftDataStudents = newValue }
get {
if self.modelContext == nil {
return []
}
return swiftDataStudents ?? []
}
}
