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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or (at your option) the GNU General
** Public license version 3 or any later version approved by the KDE Free
** Qt Foundation. The licenses are as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
** https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLNULLDRIVER_P_H
#define QSQLNULLDRIVER_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. This header file may
// change from version to version without notice, or even be
// removed.
//
// We mean it.
//
#include <QtSql/private/qtsqlglobal_p.h>
#include "QtCore/qvariant.h"
#include "QtSql/qsqldriver.h"
#include "QtSql/qsqlerror.h"
#include "QtSql/qsqlresult.h"
QT_BEGIN_NAMESPACE
class QSqlNullResult : public QSqlResult
{
public:
inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d)
{ QSqlResult::setLastError(
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
protected:
inline QVariant data(int) override { return QVariant(); }
inline bool reset (const QString&) override { return false; }
inline bool fetch(int) override { return false; }
inline bool fetchFirst() override { return false; }
inline bool fetchLast() override { return false; }
inline bool isNull(int) override { return false; }
inline int size() override { return -1; }
inline int numRowsAffected() override { return 0; }
inline void setAt(int) override {}
inline void setActive(bool) override {}
inline void setLastError(const QSqlError&) override {}
inline void setQuery(const QString&) override {}
inline void setSelect(bool) override {}
inline void setForwardOnly(bool) override {}
inline bool exec() override { return false; }
inline bool prepare(const QString&) override { return false; }
inline bool savePrepare(const QString&) override { return false; }
inline void bindValue(int, const QVariant&, QSql::ParamType) override {}
inline void bindValue(const QString&, const QVariant&, QSql::ParamType) override {}
};
class QSqlNullDriver : public QSqlDriver
{
public:
inline QSqlNullDriver(): QSqlDriver()
{ QSqlDriver::setLastError(
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
inline bool hasFeature(DriverFeature) const override { return false; }
inline bool open(const QString &, const QString &, const QString &, const QString &, int, const QString&) override
{ return false; }
inline void close() override {}
inline QSqlResult *createResult() const override { return new QSqlNullResult(this); }
protected:
inline void setOpen(bool) override {}
inline void setOpenError(bool) override {}
inline void setLastError(const QSqlError&) override {}
};
QT_END_NAMESPACE
#endif // QSQLNULLDRIVER_P_H
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