ad38ece3c8
From Qt 5.7 -> examples are lisenced under BSD license, see http://blog.qt.io/blog/2016/01/13/new-agreement-with-the-kde-free-qt-foundation/ Updated license headers to use new BSD header instead of LGPL21 one (in those files which will be under BSD) Change-Id: I3ad61caaf07802eb9da7d29eca3fe49d8a51b6a8 Reviewed-by: Frederik Gladhorn <frederik.gladhorn@theqtcompany.com> Reviewed-by: Lars Knoll <lars.knoll@theqtcompany.com>
131 lines
5.3 KiB
C++
131 lines
5.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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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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