diff --git a/src/db/common/serverdbgeneric.cpp b/src/db/common/serverdbgeneric.cpp
index 2123d181..713436ad 100644
--- a/src/db/common/serverdbgeneric.cpp
+++ b/src/db/common/serverdbgeneric.cpp
@@ -54,26 +54,23 @@ ServerDBGeneric::AsyncPlayerLogin(unsigned requestId, const string &/*playerName
 	m_ioService->post(boost::bind(&ServerDBCallback::PlayerLoginFailed, &m_callback, requestId));
 }
 
-bool
+void
 ServerDBGeneric::PlayerLogout(db_id /*playerId*/)
 {
-	return false;
 }
 
 void
-ServerDBGeneric::AsyncCreateGame(unsigned requestId, const db_list &/*players*/)
+ServerDBGeneric::AsyncCreateGame(unsigned requestId, const string &/*gameName*/)
 {
 	m_ioService->post(boost::bind(&ServerDBCallback::CreateGameFailed, &m_callback, requestId));
 }
 
-bool
+void
 ServerDBGeneric::SetGamePlayerPlace(db_id /*gameId*/, db_id /*playerId*/, unsigned /*place*/)
 {
-	return false;
 }
 
-bool
+void
 ServerDBGeneric::EndGame(db_id /*gameId*/)
 {
-	return false;
 }
diff --git a/src/db/serverdbcallback.h b/src/db/serverdbcallback.h
index b80f0176..4f312576 100644
--- a/src/db/serverdbcallback.h
+++ b/src/db/serverdbcallback.h
@@ -36,6 +36,8 @@ public:
 	virtual void ConnectSuccess() = 0;
 	virtual void ConnectFailed(const std::string &error) = 0;
 
+	virtual void QueryError(const std::string &error) = 0;
+
 	virtual void PlayerLoginSuccess(unsigned requestId, db_id playerId) = 0;
 	virtual void PlayerLoginFailed(unsigned requestId) = 0;
 
diff --git a/src/db/serverdbgeneric.h b/src/db/serverdbgeneric.h
index 11209c6c..2fb20186 100644
--- a/src/db/serverdbgeneric.h
+++ b/src/db/serverdbgeneric.h
@@ -39,11 +39,11 @@ public:
 	virtual void Stop();
 
 	virtual void AsyncPlayerLogin(unsigned requestId, const std::string &playerName, const std::string &secretString);
-	virtual bool PlayerLogout(db_id playerId);
+	virtual void PlayerLogout(db_id playerId);
 
-	virtual void AsyncCreateGame(unsigned requestId, const db_list &players);
-	virtual bool SetGamePlayerPlace(db_id gameId, db_id playerId, unsigned place);
-	virtual bool EndGame(db_id gameId);
+	virtual void AsyncCreateGame(unsigned requestId, const std::string &gameName);
+	virtual void SetGamePlayerPlace(db_id gameId, db_id playerId, unsigned place);
+	virtual void EndGame(db_id gameId);
 
 private:
 	boost::shared_ptr<boost::asio::io_service> m_ioService;
diff --git a/src/db/serverdbinterface.h b/src/db/serverdbinterface.h
index 8fbe96e3..5ad1dd83 100644
--- a/src/db/serverdbinterface.h
+++ b/src/db/serverdbinterface.h
@@ -39,11 +39,11 @@ public:
 	virtual void Stop() = 0;
 
 	virtual void AsyncPlayerLogin(unsigned requestId, const std::string &playerName, const std::string &secretString) = 0;
-	virtual bool PlayerLogout(db_id playerId) = 0;
+	virtual void PlayerLogout(db_id playerId) = 0;
 
-	virtual void AsyncCreateGame(unsigned requestId, const db_list &players) = 0;
-	virtual bool SetGamePlayerPlace(db_id gameId, db_id playerId, unsigned place) = 0;
-	virtual bool EndGame(db_id gameId) = 0;
+	virtual void AsyncCreateGame(unsigned requestId, const std::string &gameName) = 0;
+	virtual void SetGamePlayerPlace(db_id gameId, db_id playerId, unsigned place) = 0;
+	virtual void EndGame(db_id gameId) = 0;
 };
 
 #endif
diff --git a/src/net/common/serverlobbythread.cpp b/src/net/common/serverlobbythread.cpp
index 37b73c4d..97c37b46 100644
--- a/src/net/common/serverlobbythread.cpp
+++ b/src/net/common/serverlobbythread.cpp
@@ -102,6 +102,12 @@ public:
 
 	virtual void ConnectFailed(const string &error)
 	{
+		// TODO
+	}
+
+	virtual void QueryError(const std::string &error)
+	{
+		// TODO
 	}
 
 	virtual void PlayerLoginSuccess(unsigned requestId, db_id dbPlayerId)