kasts/src/database.h

/**
 * Copyright 2020 Tobias Fella <fella@posteo.de>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License or (at your option) version 3 or any later version
 * accepted by the membership of KDE e.V. (or its successor approved
 * by the membership of KDE e.V.), which shall act as a proxy
 * defined in Section 14 of version 3 of the license.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#pragma once

#include <QSqlQuery>

class Database : public QObject
{
    Q_OBJECT

public:
    static Database &instance()
    {
        static Database _instance;
        return _instance;
    }
    bool execute(QSqlQuery &query);
    bool execute(QString query);
    Q_INVOKABLE void addFeed(QString url);

Q_SIGNALS:
    void feedAdded(QString url);

private:
    Database();
    int version();

    bool migrate();
    bool migrateTo1();
    void cleanup();
    bool feedExists(QString url);
};