ObjectBox

lib/model/chat_message.dart

@@ -1,14 +1,11 @@
-import 'package:isar/isar.dart';
-import 'package:json_annotation/json_annotation.dart';
+import 'package:objectbox/objectbox.dart';
 import 'package:stadtbote/main.dart';
 import 'package:stadtbote/tools/util.dart';
 
-part 'chat_message.g.dart';
-
-@collection
-@JsonSerializable()
+@Entity()
 class ChatMessage {
-  late Id id;
+  @Id()
+  int id = 0;
 
   late int time;
 
@@ -18,16 +15,34 @@ class ChatMessage {
 
   late String text;
 
-  late bool? read = false;
+  bool read = false;
 
   ChatMessage();
 
-  factory ChatMessage.fromJson(Map<String, dynamic> json) => _$ChatMessageFromJson(json);
+  factory ChatMessage.fromJson(Map<String, dynamic> json) {
+    final message = ChatMessage();
+    message.id = json['id'] as int? ?? 0;
+    message.time = json['time'] as int;
+    message.from = json['from'] as String;
+    message.subj = json['subj'] as String;
+    message.text = json['text'] as String;
+    message.read = json['read'] as bool? ?? false;
+    return message;
+  }
 
-  Map<String, dynamic> toJson() => _$ChatMessageToJson(this);
+  Map<String, dynamic> toJson() {
+    return {
+      'id': id,
+      'time': time,
+      'from': from,
+      'subj': subj,
+      'text': text,
+      'read': read,
+    };
+  }
 
   static Future<ChatMessage> mergeFromJson(Map<String, dynamic> json) async {
-    var availableMessage = await MyApp.isarInstance.chatMessages.filter().idEqualTo(json["id"]).findFirst();
+    var availableMessage = MyApp.objectBoxStore.box<ChatMessage>().get(json["id"] as int);
 
     if (availableMessage != null) {
       availableMessage.id = json["id"];