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++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
++
++ #ifndef DATABASE_H
++ #define DATABASE_H
++
++ #include <QMessageBox>
++ #include <QSqlDatabase>
++ #include <QSqlError>
++ #include <QSqlQuery>
++
++ static bool createConnection()
++ {
++ QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
++ db.setDatabaseName(":memory:");
++ if (!db.open()) {
++ QMessageBox::critical(nullptr, QObject::tr("Cannot open database"),
++ QObject::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 artists (id int primary key, "
++ "artist varchar(40), "
++ "albumcount int)");
++
++ query.exec("insert into artists values(0, '<all>', 0)");
++ query.exec("insert into artists values(1, 'Ane Brun', 2)");
++ query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");
++ query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");
++
++ query.exec("create table albums (albumid int primary key, "
++ "title varchar(50), "
++ "artistid int, "
++ "year int)");
++
++ query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "
++ "2003)");
++ query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");
++ query.exec("insert into albums values(3, '...The Great October Sound', 2, "
++ "2002)");
++ query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");
++ query.exec("insert into albums values(5, "
++ "'One day you`ll dance for me, New York City', 2, 2004)");
++ query.exec("insert into albums values(6, 'Ompa Til Du D\xc3\xb8r', 3, 2001)");
++ query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");
++ query.exec("insert into albums values(8, 'Maestro', 3, 2005)");
++
++ return true;
++ }
++
++ #endif
++
++