qt5base-lts/examples/sql/relationaltablemodel/relationaltablemodel.cpp
David Boddie 0748751c9f Squashed commit of the changes from the mobile-examples repository
(4.7-generated-declarative branch).
2011-05-23 14:24:07 +02:00

119 lines
4.2 KiB
C++

/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the examples of the Qt Toolkit.
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** notice, this list of conditions and the following disclaimer.
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#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();
}