Database error handling.

accommodation/data/person.h

@@ -16,7 +16,7 @@ class Person : public QObject
 public:
     Person();
 
-    int getId() const;
+    int id() const;
     void setId(int value);
 
     QString getFirstName() const;
@@ -28,7 +28,7 @@ public:
 private:
     friend class odb::access;
 #pragma db id auto
-    int id;
+    int m_id;
     QString firstName;
     QString lastName;