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Diffstat (limited to 'examples/sql/relationaltablemodel/relationaltablemodel.cpp')
-rw-r--r-- | examples/sql/relationaltablemodel/relationaltablemodel.cpp | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/examples/sql/relationaltablemodel/relationaltablemodel.cpp b/examples/sql/relationaltablemodel/relationaltablemodel.cpp new file mode 100644 index 0000000..b38cdda --- /dev/null +++ b/examples/sql/relationaltablemodel/relationaltablemodel.cpp @@ -0,0 +1,115 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (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 either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** 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 1.0, included in the file LGPL_EXCEPTION.txt in this +** package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@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(); +} |