Fixed crash on add item via favorite button after application start.

Favorite buttons has short name labels.
closes #296
refs #293

shop/data/favorititem.cpp

@@ -28,6 +28,16 @@ void FavoritItem::setName(const QString &name)
     m_name = name;
 }
 
+QString FavoritItem::shortName()
+{
+    return m_shortName;
+}
+
+void FavoritItem::setShortName(const QString &shortName)
+{
+    m_shortName = shortName;
+}
+
 QDecDouble FavoritItem::unitPrice()
 {
     return TO_DEC(m_unitPrice);

shop/data/favorititem.h

@@ -19,6 +19,7 @@ class FavoritItem : public QObject, public IShopItem
     Q_PROPERTY(int id READ id WRITE setId)
     Q_PROPERTY(int refId READ refId WRITE setRefId)
     Q_PROPERTY(QString name READ name WRITE setName)
+    Q_PROPERTY(QString shortName READ shortName WRITE setShortName)
     Q_PROPERTY(QDecDouble unitPrice READ unitPrice WRITE setUnitPrice)
     Q_PROPERTY(Enums::VatType vatType READ vatType WRITE setVatType)
     Q_PROPERTY(QString pluginId READ pluginId WRITE setPluginId)
@@ -35,6 +36,9 @@ public:
     QString name() override;
     void setName(const QString &name);
 
+    virtual QString shortName() override;
+    void setShortName(const QString &shortName);
+
     QDecDouble unitPrice() override;
     void setUnitPrice(QDecDouble unitPrice);
 
@@ -60,6 +64,7 @@ private:
     Enums::VatType m_vatType;
     QString m_pluginId;
     QString m_favButtonName;
+    QString m_shortName;
 };
 
 typedef QSharedPointer<FavoritItem> FavoritItemPtr;