3 files changed, 90 insertions, 0 deletions
diff --git a/examples/sql/overview/subclass3/main.cpp b/examples/sql/overview/subclass3/main.cpp
new file mode 100644
index 0000000..84f62ec
--- /dev/null
+++ b/examples/sql/overview/subclass3/main.cpp
@@ -0,0 +1,57 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include "main.h"
+#include <qdatatable.h>
+
+InvoiceItemCursor::InvoiceItemCursor() :
+    QSqlCursor( "invoiceitem" )
+{
+    QSqlFieldInfo productName( "productname", QVariant::String );
+    append( productName );
+    setCalculated( productName.name(), TRUE );
+}
+
+
+QVariant InvoiceItemCursor::calculateField( const QString & name )
+{
+    if ( name == "productname" ) {
+	QSqlQuery query( "SELECT name FROM prices WHERE id=" +
+		     field( "pricesid" )->value().toString() );
+	if ( query.next() )
+	    return query.value( 0 );
+    }
+
+    return QVariant( QString::null );
+}
+
+
+int main( int argc, char *argv[] )
+{
+    QApplication app( argc, argv );
+
+    if ( createConnections() ) {
+	InvoiceItemCursor invoiceItemCursor;
+
+	QDataTable *invoiceItemTable = new QDataTable( &invoiceItemCursor );
+
+	app.setMainWidget( invoiceItemTable );
+
+	invoiceItemTable->addColumn( "productname", "Product" );
+	invoiceItemTable->addColumn( "quantity",    "Quantity" );
+	invoiceItemTable->addColumn( "paiddate",    "Paid" );
+
+	invoiceItemTable->refresh();
+	invoiceItemTable->show();
+
+	return app.exec();
+    }
+
+    return 1;
+}
diff --git a/examples/sql/overview/subclass3/main.h b/examples/sql/overview/subclass3/main.h
new file mode 100644
index 0000000..d84344a
--- /dev/null
+++ b/examples/sql/overview/subclass3/main.h
@@ -0,0 +1,25 @@
+/****************************************************************************
+**
+** Copyright (C) 1992-2008 Trolltech ASA.  All rights reserved.
+**
+** This file is part of an example program for Qt.  This example
+** program may be used, distributed and modified without limitation.
+**
+*****************************************************************************/
+
+#include <qapplication.h>
+#include <qsqldatabase.h>
+#include <qsqlcursor.h>
+#include "../connection.h"
+
+class QSqlRecord;
+
+class InvoiceItemCursor : public QSqlCursor
+{
+    public:
+	InvoiceItemCursor();
+    protected:
+	QVariant calculateField( const QString & name );
+};
+
+
diff --git a/examples/sql/overview/subclass3/subclass3.pro b/examples/sql/overview/subclass3/subclass3.pro
new file mode 100644
index 0000000..a6cd8cb
--- /dev/null
+++ b/examples/sql/overview/subclass3/subclass3.pro
@@ -0,0 +1,8 @@
+TEMPLATE = app
+
+CONFIG  += qt warn_on release
+
+REQUIRES = full-config
+
+HEADERS	 =
+SOURCES	 = main.cpp ../connection.cpp