examples/sql/relationaltablemodel/relationaltablemodel.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/examples/sql/relationaltablemodel/relationaltablemodel.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,115 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+#include <QtSql>
+
+#include "../connection.h"
+
+void initializeModel(QSqlRelationalTableModel *model)
+{
+//! [0]
+    model->setTable("employee");
+//! [0]
+
+    model->setEditStrategy(QSqlTableModel::OnManualSubmit);
+//! [1]
+    model->setRelation(2, QSqlRelation("city", "id", "name"));
+//! [1] //! [2]
+    model->setRelation(3, QSqlRelation("country", "id", "name"));
+//! [2]
+
+//! [3]
+    model->setHeaderData(0, Qt::Horizontal, QObject::tr("ID"));
+    model->setHeaderData(1, Qt::Horizontal, QObject::tr("Name"));
+    model->setHeaderData(2, Qt::Horizontal, QObject::tr("City"));
+    model->setHeaderData(3, Qt::Horizontal, QObject::tr("Country"));
+//! [3]
+
+    model->select();
+}
+
+QTableView *createView(const QString &title, QSqlTableModel *model)
+{
+//! [4]
+    QTableView *view = new QTableView;
+    view->setModel(model);
+    view->setItemDelegate(new QSqlRelationalDelegate(view));
+//! [4]
+    view->setWindowTitle(title);
+    return view;
+}
+
+void createRelationalTables()
+{
+    QSqlQuery query;
+    query.exec("create table employee(id int primary key, name varchar(20), city int, country int)");
+    query.exec("insert into employee values(1, 'Espen', 5000, 47)");
+    query.exec("insert into employee values(2, 'Harald', 80000, 49)");
+    query.exec("insert into employee values(3, 'Sam', 100, 1)");
+
+    query.exec("create table city(id int, name varchar(20))");
+    query.exec("insert into city values(100, 'San Jose')");
+    query.exec("insert into city values(5000, 'Oslo')");
+    query.exec("insert into city values(80000, 'Munich')");
+
+    query.exec("create table country(id int, name varchar(20))");
+    query.exec("insert into country values(1, 'USA')");
+    query.exec("insert into country values(47, 'Norway')");
+    query.exec("insert into country values(49, 'Germany')");
+}
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    if (!createConnection())
+        return 1;
+    createRelationalTables();
+
+    QSqlRelationalTableModel model;
+
+    initializeModel(&model);
+
+    QTableView *view = createView(QObject::tr("Relational Table Model"), &model);
+    view->show();
+
+    return app.exec();
+}