source: trunk/examples/sql/masterdetail/database.h@ 561

Last change on this file since 561 was 561, checked in by Dmitry A. Kuminov, 15 years ago

trunk: Merged in qt 4.6.1 sources.

File size: 4.0 KB
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1/****************************************************************************
2**
3** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
4** All rights reserved.
5** Contact: Nokia Corporation ([email protected])
6**
7** This file is part of the examples of the Qt Toolkit.
8**
9** $QT_BEGIN_LICENSE:LGPL$
10** Commercial Usage
11** Licensees holding valid Qt Commercial licenses may use this file in
12** accordance with the Qt Commercial License Agreement provided with the
13** Software or, alternatively, in accordance with the terms contained in
14** a written agreement between you and Nokia.
15**
16** GNU Lesser General Public License Usage
17** Alternatively, this file may be used under the terms of the GNU Lesser
18** General Public License version 2.1 as published by the Free Software
19** Foundation and appearing in the file LICENSE.LGPL included in the
20** packaging of this file. Please review the following information to
21** ensure the GNU Lesser General Public License version 2.1 requirements
22** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
23**
24** In addition, as a special exception, Nokia gives you certain additional
25** rights. These rights are described in the Nokia Qt LGPL Exception
26** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
27**
28** GNU General Public License Usage
29** Alternatively, this file may be used under the terms of the GNU
30** General Public License version 3.0 as published by the Free Software
31** Foundation and appearing in the file LICENSE.GPL included in the
32** packaging of this file. Please review the following information to
33** ensure the GNU General Public License version 3.0 requirements will be
34** met: http://www.gnu.org/copyleft/gpl.html.
35**
36** If you have questions regarding the use of this file, please contact
37** Nokia at [email protected].
38** $QT_END_LICENSE$
39**
40****************************************************************************/
41
42#ifndef DATABASE_H
43#define DATABASE_H
44
45#include <QMessageBox>
46#include <QSqlDatabase>
47#include <QSqlError>
48#include <QSqlQuery>
49
50static bool createConnection()
51{
52 QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
53 db.setDatabaseName(":memory:");
54 if (!db.open()) {
55 QMessageBox::critical(0, qApp->tr("Cannot open database"),
56 qApp->tr("Unable to establish a database connection.\n"
57 "This example needs SQLite support. Please read "
58 "the Qt SQL driver documentation for information how "
59 "to build it.\n\n"
60 "Click Cancel to exit."), QMessageBox::Cancel);
61 return false;
62 }
63
64 QSqlQuery query;
65
66 query.exec("create table artists (id int primary key, "
67 "artist varchar(40), "
68 "albumcount int)");
69
70 query.exec("insert into artists values(0, '<all>', 0)");
71 query.exec("insert into artists values(1, 'Ane Brun', 2)");
72 query.exec("insert into artists values(2, 'Thomas Dybdahl', 3)");
73 query.exec("insert into artists values(3, 'Kaizers Orchestra', 3)");
74
75 query.exec("create table albums (albumid int primary key, "
76 "title varchar(50), "
77 "artistid int, "
78 "year int)");
79
80 query.exec("insert into albums values(1, 'Spending Time With Morgan', 1, "
81 "2003)");
82 query.exec("insert into albums values(2, 'A Temporary Dive', 1, 2005)");
83 query.exec("insert into albums values(3, '...The Great October Sound', 2, "
84 "2002)");
85 query.exec("insert into albums values(4, 'Stray Dogs', 2, 2003)");
86 query.exec("insert into albums values(5, "
87 "'One day you`ll dance for me, New York City', 2, 2004)");
88 query.exec("insert into albums values(6, 'Ompa Til Du D\xf8r', 3, 2001)");
89 query.exec("insert into albums values(7, 'Evig Pint', 3, 2002)");
90 query.exec("insert into albums values(8, 'Maestro', 3, 2005)");
91
92 return true;
93}
94
95#endif
96
97
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