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Diffstat (limited to 'examples/sql/relationaltablemodel/relationaltablemodel.cpp')
-rw-r--r-- | examples/sql/relationaltablemodel/relationaltablemodel.cpp | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/examples/sql/relationaltablemodel/relationaltablemodel.cpp b/examples/sql/relationaltablemodel/relationaltablemodel.cpp new file mode 100644 index 0000000000..ecb985e6b5 --- /dev/null +++ b/examples/sql/relationaltablemodel/relationaltablemodel.cpp @@ -0,0 +1,114 @@ +/**************************************************************************** +** +** 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); + view->show(); + + return app.exec(); +} |