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

camp/campshopitem.h

@@ -3,30 +3,30 @@
 
 #include <shopitem.h>
 
-class CampShopItem : public ShopItem
+class CampShopItem : public IShopItem
 {
 public:
-    CampShopItem(QObject *parent = 0);
+    explicit CampShopItem(QObject *parent = nullptr);
 
     // IShopItem interface
 public:
-    int id();
-    QString name();
-    QString shortName();
-    QDecDouble unitPrice();
-    Enums::VatType vatType();
-    QString pluginId();
+    long id() override;
+    QString name() override;
+    QString shortName() override;
+    QDecDouble unitPrice() override;
+    Enums::VatType vatType() override;
+    QString pluginId() override;
 
     // ShopItem interface
 public:
-    QString code();
+    QString code() override;
 
     void setUnitPrice(const QDecDouble &unitPrice);
     void setVatType(const Enums::VatType &vatType);
-    void setId(int id);
+    void setId(long id);
 
 private:
-    int m_id;
+    long m_id;
     QDecDouble m_unitPrice;
     Enums::VatType m_vatType;
 };