e0d5221957
Change-Id: Iab0e7364d1f6b348d0e3033ea9304139f5bd6d0d Reviewed-on: http://codereview.qt.nokia.com/617 Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com> Reviewed-by: David Boddie
122 lines
4.6 KiB
C++
122 lines
4.6 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "bookwindow.h"
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#include "bookdelegate.h"
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#include "initdb.h"
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#include <QtSql>
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BookWindow::BookWindow()
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{
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ui.setupUi(this);
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if (!QSqlDatabase::drivers().contains("QSQLITE"))
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QMessageBox::critical(this, "Unable to load database", "This demo needs the SQLITE driver");
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// initialize the database
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QSqlError err = initDb();
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if (err.type() != QSqlError::NoError) {
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showError(err);
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return;
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}
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// Create the data model
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model = new QSqlRelationalTableModel(ui.bookTable);
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model->setEditStrategy(QSqlTableModel::OnManualSubmit);
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model->setTable("books");
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// Remember the indexes of the columns
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authorIdx = model->fieldIndex("author");
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genreIdx = model->fieldIndex("genre");
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// Set the relations to the other database tables
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model->setRelation(authorIdx, QSqlRelation("authors", "id", "name"));
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model->setRelation(genreIdx, QSqlRelation("genres", "id", "name"));
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// Set the localized header captions
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model->setHeaderData(authorIdx, Qt::Horizontal, tr("Author Name"));
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model->setHeaderData(genreIdx, Qt::Horizontal, tr("Genre"));
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model->setHeaderData(model->fieldIndex("title"), Qt::Horizontal, tr("Title"));
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model->setHeaderData(model->fieldIndex("year"), Qt::Horizontal, tr("Year"));
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model->setHeaderData(model->fieldIndex("rating"), Qt::Horizontal, tr("Rating"));
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// Populate the model
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if (!model->select()) {
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showError(model->lastError());
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return;
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}
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// Set the model and hide the ID column
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ui.bookTable->setModel(model);
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ui.bookTable->setItemDelegate(new BookDelegate(ui.bookTable));
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ui.bookTable->setColumnHidden(model->fieldIndex("id"), true);
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ui.bookTable->setSelectionMode(QAbstractItemView::SingleSelection);
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// Initialize the Author combo box
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ui.authorEdit->setModel(model->relationModel(authorIdx));
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ui.authorEdit->setModelColumn(model->relationModel(authorIdx)->fieldIndex("name"));
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ui.genreEdit->setModel(model->relationModel(genreIdx));
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ui.genreEdit->setModelColumn(model->relationModel(genreIdx)->fieldIndex("name"));
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QDataWidgetMapper *mapper = new QDataWidgetMapper(this);
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mapper->setModel(model);
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mapper->setItemDelegate(new BookDelegate(this));
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mapper->addMapping(ui.titleEdit, model->fieldIndex("title"));
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mapper->addMapping(ui.yearEdit, model->fieldIndex("year"));
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mapper->addMapping(ui.authorEdit, authorIdx);
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mapper->addMapping(ui.genreEdit, genreIdx);
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mapper->addMapping(ui.ratingEdit, model->fieldIndex("rating"));
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connect(ui.bookTable->selectionModel(), SIGNAL(currentRowChanged(QModelIndex,QModelIndex)),
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mapper, SLOT(setCurrentModelIndex(QModelIndex)));
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ui.bookTable->setCurrentIndex(model->index(0, 0));
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}
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void BookWindow::showError(const QSqlError &err)
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{
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QMessageBox::critical(this, "Unable to initialize Database",
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"Error initializing database: " + err.text());
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}
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