53 lines
1.7 KiB
C++
53 lines
1.7 KiB
C++
// Copyright (C) 2017 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include <QtCore>
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#include <QGuiApplication>
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#include <QSqlDatabase>
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#include <QSqlError>
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#include <QtQml>
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#include "sqlcontactmodel.h"
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#include "sqlconversationmodel.h"
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static void connectToDatabase()
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{
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QSqlDatabase database = QSqlDatabase::database();
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if (!database.isValid()) {
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database = QSqlDatabase::addDatabase("QSQLITE");
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if (!database.isValid())
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qFatal("Cannot add database: %s", qPrintable(database.lastError().text()));
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}
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const QDir writeDir = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
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if (!writeDir.mkpath("."))
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qFatal("Failed to create writable directory at %s", qPrintable(writeDir.absolutePath()));
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// Ensure that we have a writable location on all devices.
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const QString fileName = writeDir.absolutePath() + "/chat-database.sqlite3";
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// When using the SQLite driver, open() will create the SQLite database if it doesn't exist.
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database.setDatabaseName(fileName);
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if (!database.open()) {
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qFatal("Cannot open database: %s", qPrintable(database.lastError().text()));
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QFile::remove(fileName);
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}
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}
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int main(int argc, char *argv[])
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{
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QGuiApplication app(argc, argv);
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qmlRegisterType<SqlContactModel>("io.qt.examples.chattutorial", 1, 0, "SqlContactModel");
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qmlRegisterType<SqlConversationModel>("io.qt.examples.chattutorial", 1, 0, "SqlConversationModel");
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connectToDatabase();
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QQmlApplicationEngine engine;
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engine.load(QUrl(QStringLiteral("qrc:/chapter4/main.qml")));
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if (engine.rootObjects().isEmpty())
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return -1;
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return app.exec();
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}
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