5635823e17
As in the past, to avoid rewriting various autotests that contain line-number information, an extra blank line has been inserted at the end of the license text to ensure that this commit does not change the total number of lines in the license header. Change-Id: I311e001373776812699d6efc045b5f742890c689 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
122 lines
4.5 KiB
C++
122 lines
4.5 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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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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**
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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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