Adding optional QVariant data argument to sendGetRequest to pass it to the server. Using hard coded sendGetRequest(GetBiddingsOfSpecificRound, 2) in fetchCurrentBiddings action to test this.

libs/BeetRoundCore/genericcore.h

@@ -2,6 +2,7 @@
 #define GENERICCORE_H
 
 #include <QObject>
+#include <QVariant>
 
 #include "model/metadata.h"
 #include "structs.h"
@@ -48,7 +49,7 @@ class GenericCore : public QObject {
 
   /// *** server communication ***
   ///     request signals
-  void sendGetRequest(GetRequestTypes type);
+  void sendGetRequest(GetRequestTypes type, QVariant data = QVariant());
   ///     response signals
   void currentBiddingRoundChanged(int round, bool isRunning);