import 'package:isar/isar.dart'; import '../services/dbhelper.dart'; part 'todo.g.dart'; @collection class Todo { final int id; String title; String description; final DateTime createdAt; bool done; Todo({ int? index, required this.title, this.description = '', DateTime? createdTime, this.done = false, }) : createdAt = createdTime ?? DateTime.now(), id = index ?? DbHelper.nextTodoId; }