Added the type role to the EditItemDialog.

views/itemdetailmapper.h

@@ -1,7 +1,9 @@
 #ifndef ITEMDETAILMAPPER_H
 #define ITEMDETAILMAPPER_H
 
+#include <QComboBox>
 #include <QDataWidgetMapper>
+#include <QStringListModel>
 #include <QWidget>
 
 class QLabel;
@@ -54,6 +56,10 @@ class ItemDetailMapper : public QWidget {
   QLabel* m_infoLabel   = nullptr;
   QLineEdit* m_infoEdit = nullptr;
 
+  QLabel* m_typeLabel;
+  QComboBox* m_typeBox;
+  QStringListModel* m_typeModel = nullptr;
+
   QLabel* m_amountLabel = nullptr;
   QSpinBox* m_amountBox = nullptr;