Build system changed to Cmake, ORM changed to QxORM, Qt6 compatibility.

shop/directsaleitem.cpp

@@ -1,12 +1,12 @@
 #include "directsaleitem.h"
 
-DirectSaleItem::DirectSaleItem(QObject *parent) : QObject(parent)
+DirectSaleItem::DirectSaleItem(QObject *parent) : IShopItem(parent)
 {
     m_count = 1;
     m_vat = Enums::NONE;
 }
 
-int DirectSaleItem::id()
+long DirectSaleItem::id()
 {
     return 0;
 }