AutoTableModel now can display data from related table.

Usage example of ComboBox binding in Accommodation plugin.

accommodation/data/address.cpp

@@ -0,0 +1,58 @@
+#include "address.h"
+
+Address::Address(QObject *parent) : ComboItem(parent)
+{
+
+}
+
+Address::~Address()
+{
+
+}
+QString Address::city() const
+{
+    return m_city;
+}
+
+void Address::setCity(const QString &city)
+{
+    m_city = city;
+}
+QString Address::street() const
+{
+    return m_street;
+}
+
+void Address::setStreet(const QString &street)
+{
+    m_street = street;
+}
+QString Address::houseNumber() const
+{
+    return m_houseNumber;
+}
+
+void Address::setHouseNumber(const QString &houseNumber)
+{
+    m_houseNumber = houseNumber;
+}
+int Address::id() const
+{
+    return m_id;
+}
+
+void Address::setId(int id)
+{
+    m_id = id;
+}
+
+bool Address::eq(ComboItem *other)
+{
+    Address *addr = qobject_cast<Address*>(other);
+    return addr != NULL && m_id == addr->id();
+}
+
+QString Address::toString()
+{
+    return m_street + ", " + m_houseNumber + ", " + m_city;
+}