import 'user.dart'; class Message { String idSender; String idReceiver; String content; Message({ required this.idSender, required this.idReceiver, required this.content, }); Map toHashMap() { return { 'idSender': idSender, 'idReceiver': idReceiver, 'content': content, }; } factory Message.fromMap(Map data) { return Message( idSender: data['idSender'], idReceiver: data['idReceiver'], content: data['content'], ); } @override String toString() { return "idSender : $idSender " + "Content : $content \n"; } }