assets/schema.json

@@ -88,13 +88,12 @@
             ]
           },
           "winner": {
-            "type": ["string","null"]
+            "type": ["object","null"]
           },
           "required": [
             "id",
             "createdAt",
-            "name",
-            "winner"
+            "name"
           ]
         }
       ]

lib/data/dao/game_dao.dart

@@ -20,13 +20,16 @@ class GameDao extends DatabaseAccessor<AppDatabase> with _$GameDaoMixin {
       result.map((row) async {
         final group = await db.groupGameDao.getGroupOfGame(gameId: row.id);
         final players = await db.playerGameDao.getPlayersOfGame(gameId: row.id);
+        final winner = row.winnerId != null
+            ? await db.playerDao.getPlayerById(playerId: row.winnerId!)
+            : null;
         return Game(
           id: row.id,
           name: row.name,
           group: group,
           players: players,
           createdAt: row.createdAt,
-          winner: row.winnerId,
+          winner: winner,
         );
       }),
     );
@@ -45,13 +48,17 @@ class GameDao extends DatabaseAccessor<AppDatabase> with _$GameDaoMixin {
     if (await db.groupGameDao.gameHasGroup(gameId: gameId)) {
       group = await db.groupGameDao.getGroupOfGame(gameId: gameId);
     }
+    Player? winner;
+    if (result.winnerId != null) {
+      winner = await db.playerDao.getPlayerById(playerId: result.winnerId!);
+    }
 
     return Game(
       id: result.id,
       name: result.name,
       players: players,
       group: group,
-      winner: result.winnerId,
+      winner: winner,
       createdAt: result.createdAt,
     );
   }
@@ -64,7 +71,7 @@ class GameDao extends DatabaseAccessor<AppDatabase> with _$GameDaoMixin {
         GameTableCompanion.insert(
           id: game.id,
           name: game.name,
-          winnerId: Value(game.winner),
+          winnerId: Value(game.winner?.id),
           createdAt: game.createdAt,
         ),
         mode: InsertMode.insertOrReplace,
@@ -100,7 +107,7 @@ class GameDao extends DatabaseAccessor<AppDatabase> with _$GameDaoMixin {
                   id: game.id,
                   name: game.name,
                   createdAt: game.createdAt,
-                  winnerId: Value(game.winner),
+                  winnerId: Value(game.winner?.id),
                 ),
               )
               .toList(),

lib/data/dto/game.dart

@@ -9,7 +9,7 @@ class Game {
   final String name;
   final List<Player>? players;
   final Group? group;
-  final String? winner;
+  final Player? winner;
 
   Game({
     String? id,
@@ -17,7 +17,7 @@ class Game {
     required this.name,
     this.players,
     this.group,
-    this.winner = '',
+    this.winner,
   }) : id = id ?? const Uuid().v4(),
        createdAt = createdAt ?? clock.now();
 
@@ -37,7 +37,7 @@ class Game {
                 .toList()
           : null,
       group = json['group'] != null ? Group.fromJson(json['group']) : null,
-      winner = json['winner'] ?? '';
+      winner = json['winner'] != null ? Player.fromJson(json['winner']) : null;
 
   /// Converts the Game instance to a JSON object.
   Map<String, dynamic> toJson() => {
@@ -46,6 +46,6 @@ class Game {
     'name': name,
     'players': players?.map((player) => player.toJson()).toList(),
     'group': group?.toJson(),
-    'winner': winner,
+    'winner': winner?.toJson(),
   };
 }

lib/presentation/views/main_menu/statistics_view.dart

@@ -127,14 +127,14 @@ class _StatisticsViewState extends State<StatisticsView> {
     // Getting the winners
     for (var game in games) {
       final winner = game.winner;
-      if (winner != null && winner.isNotEmpty) {
-        final index = winCounts.indexWhere((entry) => entry.$1 == winner);
+      if (winner != null) {
+        final index = winCounts.indexWhere((entry) => entry.$1 == winner.id);
         // -1 means winner not found in winCounts
         if (index != -1) {
           final current = winCounts[index].$2;
-          winCounts[index] = (winner, current + 1);
+          winCounts[index] = (winner.id, current + 1);
         } else {
-          winCounts.add((winner, 1));
+          winCounts.add((winner.id, 1));
         }
       }
     }

test/db_tests/game_test.dart

@@ -50,15 +50,18 @@ void main() {
         name: 'First Test Game',
         group: testGroup1,
         players: [testPlayer4, testPlayer5],
+        winner: testPlayer4,
       );
       testGame2 = Game(
         name: 'Second Test Game',
         group: testGroup2,
         players: [testPlayer1, testPlayer2, testPlayer3],
+        winner: testPlayer2,
       );
       testGameOnlyPlayers = Game(
         name: 'Test Game with Players',
         players: [testPlayer1, testPlayer2, testPlayer3],
+        winner: testPlayer3,
       );
       testGameOnlyGroup = Game(name: 'Test Game with Group', group: testGroup2);
     });
@@ -75,9 +78,16 @@ void main() {
 
       expect(result.id, testGame1.id);
       expect(result.name, testGame1.name);
-      expect(result.winner, testGame1.winner);
       expect(result.createdAt, testGame1.createdAt);
 
+      if (result.winner != null && testGame1.winner != null) {
+        expect(result.winner!.id, testGame1.winner!.id);
+        expect(result.winner!.name, testGame1.winner!.name);
+        expect(result.winner!.createdAt, testGame1.winner!.createdAt);
+      } else {
+        expect(result.winner, testGame1.winner);
+      }
+
       if (result.group != null) {
         expect(result.group!.members.length, testGroup1.members.length);
 
@@ -123,7 +133,13 @@ void main() {
         expect(game.id, testGame.id);
         expect(game.name, testGame.name);
         expect(game.createdAt, testGame.createdAt);
-        expect(game.winner, testGame.winner);
+        if (game.winner != null && testGame.winner != null) {
+          expect(game.winner!.id, testGame.winner!.id);
+          expect(game.winner!.name, testGame.winner!.name);
+          expect(game.winner!.createdAt, testGame.winner!.createdAt);
+        } else {
+          expect(game.winner, testGame.winner);
+        }
 
         // Group-Checks
         if (testGame.group != null) {