Added methods of todos

lib/data/dao/group_game_dao.dart

@@ -10,16 +10,13 @@ class GroupGameDao extends DatabaseAccessor<AppDatabase>
     with _$GroupGameDaoMixin {
   GroupGameDao(super.db);
 
-  /// Checks if there is a group associated with the given [gameId].
-  /// Returns `true` if there is a group, otherwise `false`.
-  Future<bool> hasGameGroup({required String gameId}) async {
-    final count =
-        await (selectOnly(groupGameTable)
-              ..where(groupGameTable.gameId.equals(gameId))
-              ..addColumns([groupGameTable.groupId.count()]))
-            .map((row) => row.read(groupGameTable.groupId.count()))
-            .getSingle();
-    return (count ?? 0) > 0;
+  /// Associates a group with a game by inserting a record into the
+  /// [GroupGameTable].
+  Future<void> addGroupToGame(String gameId, String groupId) async {
+    await into(groupGameTable).insert(
+      GroupGameTableCompanion.insert(groupId: groupId, gameId: gameId),
+      mode: InsertMode.insertOrReplace,
+    );
   }
 
   /// Retrieves the [Group] associated with the given [gameId].
@@ -37,11 +34,39 @@ class GroupGameDao extends DatabaseAccessor<AppDatabase>
     return group;
   }
 
-  /// Associates a group with a game by inserting a record into the
-  /// [GroupGameTable].
-  Future<void> addGroupToGame(String gameId, String groupId) async {
-    await into(
-      groupGameTable,
-    ).insert(GroupGameTableCompanion.insert(groupId: groupId, gameId: gameId), mode:  InsertMode.insertOrReplace);
+  /// Checks if there is a group associated with the given [gameId].
+  /// Returns `true` if there is a group, otherwise `false`.
+  Future<bool> gameHasGroup({required String gameId}) async {
+    final count =
+        await (selectOnly(groupGameTable)
+              ..where(groupGameTable.gameId.equals(gameId))
+              ..addColumns([groupGameTable.groupId.count()]))
+            .map((row) => row.read(groupGameTable.groupId.count()))
+            .getSingle();
+    return (count ?? 0) > 0;
+  }
+
+  /// Checks if a specific group is associated with a specific game.
+  /// Returns `true` if the group is in the game, otherwise `false`.
+  Future<bool> isGroupInGame({
+    required String gameId,
+    required String groupId,
+  }) async {
+    final count =
+        await (selectOnly(groupGameTable)
+              ..where(
+                groupGameTable.gameId.equals(gameId) &
+                    groupGameTable.groupId.equals(groupId),
+              )
+              ..addColumns([groupGameTable.groupId.count()]))
+            .map((row) => row.read(groupGameTable.groupId.count()))
+            .getSingle();
+    return (count ?? 0) > 0;
+  }
+
+  Future<bool> removeGroupFromGame({required String gameId}) async {
+    final query = delete(groupGameTable)..where((g) => g.gameId.equals(gameId));
+    final rowsAffected = await query.go();
+    return rowsAffected > 0;
   }
 }