/**************************************************************************** ** ** 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. ** ** $QT_BEGIN_LICENSE:LGPL$ ** 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. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #ifndef CONNECTION_H #define CONNECTION_H #include #include #include #include /* This file defines a helper function to open a connection to an in-memory SQLITE database and to create a test table. If you want to use another database, simply modify the code below. All the examples in this directory use this function to connect to a database. */ //! [0] static bool createConnection() { QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE"); db.setDatabaseName(":memory:"); if (!db.open()) { QMessageBox::critical(0, qApp->tr("Cannot open database"), qApp->tr("Unable to establish a database connection.\n" "This example needs SQLite support. Please read " "the Qt SQL driver documentation for information how " "to build it.\n\n" "Click Cancel to exit."), QMessageBox::Cancel); return false; } QSqlQuery query; query.exec("create table person (id int primary key, " "firstname varchar(20), lastname varchar(20))"); query.exec("insert into person values(101, 'Danny', 'Young')"); query.exec("insert into person values(102, 'Christine', 'Holand')"); query.exec("insert into person values(103, 'Lars', 'Gordon')"); query.exec("insert into person values(104, 'Roberto', 'Robitaille')"); query.exec("insert into person values(105, 'Maria', 'Papadopoulos')"); query.exec("create table offices (id int primary key," "imagefile int," "location varchar(20)," "country varchar(20)," "description varchar(100))"); query.exec("insert into offices " "values(0, 0, 'Oslo', 'Norway'," "'Oslo is home to more than 500 000 citizens and has a " "lot to offer.It has been called \"The city with the big " "heart\" and this is a nickname we are happy to live up to.')"); query.exec("insert into offices " "values(1, 1, 'Brisbane', 'Australia'," "'Brisbane is the capital of Queensland, the Sunshine State, " "where it is beautiful one day, perfect the next. " "Brisbane is Australia''s 3rd largest city, being home " "to almost 2 million people.')"); query.exec("insert into offices " "values(2, 2, 'Redwood City', 'US'," "'You find Redwood City in the heart of the Bay Area " "just north of Silicon Valley. The largest nearby city is " "San Jose which is the third largest city in California " "and the 10th largest in the US.')"); query.exec("insert into offices " "values(3, 3, 'Berlin', 'Germany'," "'Berlin, the capital of Germany is dynamic, cosmopolitan " "and creative, allowing for every kind of lifestyle. " "East meets West in the metropolis at the heart of a " "changing Europe.')"); query.exec("insert into offices " "values(4, 4, 'Munich', 'Germany'," "'Several technology companies are represented in Munich, " "and the city is often called the \"Bavarian Silicon Valley\". " "The exciting city is also filled with culture, " "art and music. ')"); query.exec("insert into offices " "values(5, 5, 'Beijing', 'China'," "'Beijing as a capital city has more than 3000 years of " "history. Today the city counts 12 million citizens, and " "is the political, economic and cultural centre of China.')"); query.exec("create table images (locationid int, file varchar(20))"); query.exec("insert into images values(0, 'images/oslo.png')"); query.exec("insert into images values(1, 'images/brisbane.png')"); query.exec("insert into images values(2, 'images/redwood.png')"); query.exec("insert into images values(3, 'images/berlin.png')"); query.exec("insert into images values(4, 'images/munich.png')"); query.exec("insert into images values(5, 'images/beijing.png')"); return true; } //! [0] #endif