|  | Home · All Namespaces · All Classes · Main Classes · Grouped Classes · Modules · Functions |

# database.h Example File
sql/masterdetail/database.h

     /****************************************************************************
     **
     ** Copyright (C) 2006-2008 Trolltech ASA. All rights reserved.
     **
     ** This file is part of the example classes of the Qt Toolkit.
     **
     ** This file may be used under the terms of the GNU General Public
     ** License versions 2.0 or 3.0 as published by the Free Software
     ** Foundation and appearing in the files LICENSE.GPL2 and LICENSE.GPL3
     ** included in the packaging of this file.  Alternatively you may (at
     ** your option) use any later version of the GNU General Public
     ** License if such license has been publicly approved by Trolltech ASA
     ** (or its successors, if any) and the KDE Free Qt Foundation. In
     ** addition, as a special exception, Trolltech gives you certain
     ** additional rights. These rights are described in the Trolltech GPL
     ** Exception version 1.2, which can be found at
     ** http://www.trolltech.com/products/qt/gplexception/ and in the file
     ** GPL_EXCEPTION.txt in this package.
     **
     ** Please review the following information to ensure GNU General
     ** Public Licensing requirements will be met:
     ** http://trolltech.com/products/qt/licenses/licensing/opensource/. If
     ** you are unsure which license is appropriate for your use, please
     ** review the following information:
     ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
     ** or contact the sales department at sales@trolltech.com.
     **
     ** In addition, as a special exception, Trolltech, as the sole
     ** copyright holder for Qt Designer, grants users of the Qt/Eclipse
     ** Integration plug-in the right for the Qt/Eclipse Integration to
     ** link to functionality provided by Qt Designer and its related
     ** libraries.
     **
     ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
     ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
     ** A PARTICULAR PURPOSE. Trolltech reserves all rights not expressly
     ** granted herein.
     **
     ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
     ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
     **
     ****************************************************************************/

     #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(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 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\xf8r', 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