/**
  * @param Game $game
  */
 public function save(Game $game)
 {
     $stmt = $this->pdo->prepare('INSERT INTO games (id, data) VALUES (:id, :data)');
     $stmt->execute([':id' => (string) $game->id(), ':data' => json_encode($game->toArray())]);
     $stmt = $this->pdo->prepare('UPDATE games SET data = :data WHERE id = :id');
     $stmt->execute([':id' => (string) $game->id(), ':data' => json_encode($game->toArray())]);
 }