/**************************************************************************** ** ** 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 documentation of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:FDL$ ** 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 Free Documentation License ** Alternatively, this file may be used under the terms of the GNU Free ** Documentation License version 1.3 as published by the Free Software ** Foundation and appearing in the file included in the packaging of this ** file. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** $QT_END_LICENSE$ ** ****************************************************************************/ /*! \example demos/books \title Books Demonstration The Books demonstration shows how Qt's SQL classes can be used with the model/view framework to create rich user interfaces for information stored in a database. \image books-demo.png Information about a collection of books is held in a database. The books are catalogued by author, title, genre, and year of publication. Although each of these fields can be displayed and edited using standard widgets, an additional field describing an arbitrary rating for the book needs something extra. Books are rated using a system where each is allocated a number of stars; the more a book has, the better it is supposed to be. By clicking on a cell containing the rating, the number of stars can be modified, and the rating in the database is updated. */