119 lines
4.2 KiB
C++
119 lines
4.2 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2011 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.
|
|
**
|
|
** $QT_BEGIN_LICENSE:BSD$
|
|
** You may use this file under the terms of the BSD license as follows:
|
|
**
|
|
** "Redistribution and use in source and binary forms, with or without
|
|
** modification, are permitted provided that the following conditions are
|
|
** met:
|
|
** * Redistributions of source code must retain the above copyright
|
|
** notice, this list of conditions and the following disclaimer.
|
|
** * Redistributions in binary form must reproduce the above copyright
|
|
** notice, this list of conditions and the following disclaimer in
|
|
** the documentation and/or other materials provided with the
|
|
** distribution.
|
|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
|
** the names of its contributors may be used to endorse or promote
|
|
** products derived from this software without specific prior written
|
|
** permission.
|
|
**
|
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#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);
|
|
#if defined(Q_OS_SYMBIAN)
|
|
view->showMaximized();
|
|
#else
|
|
view->show();
|
|
#endif
|
|
|
|
return app.exec();
|
|
}
|