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/*
SqlRaiiTransactor.cpp
This file is part of Charm, a task-based time tracking application.
Copyright (C) 2010-2018 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Mirko Boehm <mirko.boehm@kdab.com>
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) any later version.
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 <http://www.gnu.org/licenses/>.
*/
#include "SqlRaiiTransactor.h"
#include "CharmExceptions.h"
#include <QtDebug>
#include <QSqlDatabase>
#include <QSqlDriver>
#include <QSqlError>
SqlRaiiTransactor::SqlRaiiTransactor(QSqlDatabase &database)
: m_database(database)
{
if (!database.driver()->hasFeature(QSqlDriver::Transactions))
throw TransactionException(QObject::tr("Database driver does not support transactions."));
m_active = m_database.transaction();
if (!m_active) {
throw TransactionException(QObject::tr("Starting a transaction failed: %1").arg(m_database.
lastError().
text()));
}
}
SqlRaiiTransactor::~SqlRaiiTransactor()
{
if (m_active) {
if (!m_database.rollback())
qWarning() << "Failed to rollback transaction: " << m_database.lastError().text();
}
}
bool SqlRaiiTransactor::isActive() const
{
return m_active;
}
bool SqlRaiiTransactor::commit()
{
if (m_active) {
if (m_database.commit()) {
m_active = false;
return true;
}
throw TransactionException(QObject::tr(
"Failed to commit transaction: ")
+ m_database.lastError().text());
}
return false;
}
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