#include <QtSql/qsqlquerymodel.h>
#ifndef QSQLQUERYMODEL_H
class QSqlQueryModel: public QAbstractTableModel{
   /* Some contents are skipped to improve readability */
   public: virtual class QVariant data(class QModelIndex const & item, int role = Qt::DisplayRole) const
   /* ... */
};
#endif // QSQLQUERYMODEL_H