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-rw-r--r--demos/books/bookwindow.cpp121
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diff --git a/demos/books/bookwindow.cpp b/demos/books/bookwindow.cpp
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-/****************************************************************************
-**
-** 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 demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "bookwindow.h"
-#include "bookdelegate.h"
-#include "initdb.h"
-
-#include <QtSql>
-
-BookWindow::BookWindow()
-{
- ui.setupUi(this);
-
- if (!QSqlDatabase::drivers().contains("QSQLITE"))
- QMessageBox::critical(this, "Unable to load database", "This demo needs the SQLITE driver");
-
- // initialize the database
- QSqlError err = initDb();
- if (err.type() != QSqlError::NoError) {
- showError(err);
- return;
- }
-
- // Create the data model
- model = new QSqlRelationalTableModel(ui.bookTable);
- model->setEditStrategy(QSqlTableModel::OnManualSubmit);
- model->setTable("books");
-
- // Remember the indexes of the columns
- authorIdx = model->fieldIndex("author");
- genreIdx = model->fieldIndex("genre");
-
- // Set the relations to the other database tables
- model->setRelation(authorIdx, QSqlRelation("authors", "id", "name"));
- model->setRelation(genreIdx, QSqlRelation("genres", "id", "name"));
-
- // Set the localized header captions
- model->setHeaderData(authorIdx, Qt::Horizontal, tr("Author Name"));
- model->setHeaderData(genreIdx, Qt::Horizontal, tr("Genre"));
- model->setHeaderData(model->fieldIndex("title"), Qt::Horizontal, tr("Title"));
- model->setHeaderData(model->fieldIndex("year"), Qt::Horizontal, tr("Year"));
- model->setHeaderData(model->fieldIndex("rating"), Qt::Horizontal, tr("Rating"));
-
- // Populate the model
- if (!model->select()) {
- showError(model->lastError());
- return;
- }
-
- // Set the model and hide the ID column
- ui.bookTable->setModel(model);
- ui.bookTable->setItemDelegate(new BookDelegate(ui.bookTable));
- ui.bookTable->setColumnHidden(model->fieldIndex("id"), true);
- ui.bookTable->setSelectionMode(QAbstractItemView::SingleSelection);
-
- // Initialize the Author combo box
- ui.authorEdit->setModel(model->relationModel(authorIdx));
- ui.authorEdit->setModelColumn(model->relationModel(authorIdx)->fieldIndex("name"));
-
- ui.genreEdit->setModel(model->relationModel(genreIdx));
- ui.genreEdit->setModelColumn(model->relationModel(genreIdx)->fieldIndex("name"));
-
- QDataWidgetMapper *mapper = new QDataWidgetMapper(this);
- mapper->setModel(model);
- mapper->setItemDelegate(new BookDelegate(this));
- mapper->addMapping(ui.titleEdit, model->fieldIndex("title"));
- mapper->addMapping(ui.yearEdit, model->fieldIndex("year"));
- mapper->addMapping(ui.authorEdit, authorIdx);
- mapper->addMapping(ui.genreEdit, genreIdx);
- mapper->addMapping(ui.ratingEdit, model->fieldIndex("rating"));
-
- connect(ui.bookTable->selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
- mapper, SLOT(setCurrentModelIndex(QModelIndex)));
-
- ui.bookTable->setCurrentIndex(model->index(0, 0));
-}
-
-void BookWindow::showError(const QSqlError &err)
-{
- QMessageBox::critical(this, "Unable to initialize Database",
- "Error initializing database: " + err.text());
-}
-