| 1 | /****************************************************************************
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| 2 | **
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| 3 | ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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| 4 | ** All rights reserved.
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| 5 | ** Contact: Nokia Corporation (qt-info@nokia.com)
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| 6 | **
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| 7 | ** This file is part of the examples of the Qt Toolkit.
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| 8 | **
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| 9 | ** $QT_BEGIN_LICENSE:BSD$
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| 10 | ** You may use this file under the terms of the BSD license as follows:
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| 11 | **
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| 12 | ** "Redistribution and use in source and binary forms, with or without
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| 13 | ** modification, are permitted provided that the following conditions are
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| 14 | ** met:
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| 15 | ** * Redistributions of source code must retain the above copyright
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| 16 | ** notice, this list of conditions and the following disclaimer.
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| 17 | ** * Redistributions in binary form must reproduce the above copyright
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| 18 | ** notice, this list of conditions and the following disclaimer in
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| 19 | ** the documentation and/or other materials provided with the
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| 20 | ** distribution.
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| 21 | ** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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| 22 | ** the names of its contributors may be used to endorse or promote
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| 23 | ** products derived from this software without specific prior written
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| 24 | ** permission.
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| 25 | **
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| 26 | ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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| 27 | ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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| 28 | ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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| 29 | ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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| 30 | ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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| 31 | ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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| 32 | ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 33 | ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 34 | ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 35 | ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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| 36 | ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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| 37 | ** $QT_END_LICENSE$
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| 38 | **
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| 39 | ****************************************************************************/
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| 40 |
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| 41 | #ifndef DATABASE_H
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| 42 | #define DATABASE_H
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| 43 |
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| 44 | #include <QMessageBox>
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| 45 | #include <QSqlDatabase>
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| 46 | #include <QSqlError>
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| 47 | #include <QSqlQuery>
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| 48 |
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| 49 | static bool createConnection()
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| 50 | {
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| 51 | QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
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| 52 | db.setDatabaseName(":memory:");
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| 53 | if (!db.open()) {
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| 54 | QMessageBox::critical(0, qApp->tr("Cannot open database"),
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| 55 | qApp->tr("Unable to establish a database connection.\n"
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| 56 | "This example needs SQLite support. Please read "
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| 57 | "the Qt SQL driver documentation for information how "
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| 58 | "to build it.\n\n"
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| 59 | "Click Cancel to exit."), QMessageBox::Cancel);
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| 60 | return false;
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| 61 | }
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| 62 |
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| 63 | QSqlQuery query;
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| 64 |
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| 65 | query.exec("create table artists (id int primary key, "
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| 66 | "artist varchar(40), "
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| 67 | "albumcount int)");
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| 68 |
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| 69 | query.exec("insert into artists values(0, '<all>', 0)");
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| 70 | query.exec("insert into artists values(1, 'Ane Brun', 2)");
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| 71 | query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");
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| 72 | query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");
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| 73 |
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| 74 | query.exec("create table albums (albumid int primary key, "
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| 75 | "title varchar(50), "
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| 76 | "artistid int, "
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| 77 | "year int)");
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| 78 |
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| 79 | query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "
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| 80 | "2003)");
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| 81 | query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");
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| 82 | query.exec("insert into albums values(3, '...The Great October Sound', 2, "
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| 83 | "2002)");
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| 84 | query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");
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| 85 | query.exec("insert into albums values(5, "
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| 86 | "'One day you`ll dance for me, New York City', 2, 2004)");
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| 87 | query.exec("insert into albums values(6, 'Ompa Til Du D\xf8r', 3, 2001)");
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| 88 | query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");
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| 89 | query.exec("insert into albums values(8, 'Maestro', 3, 2005)");
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| 90 |
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| 91 | return true;
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| 92 | }
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| 93 |
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| 94 | #endif
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| 95 |
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| 96 |
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