1
/****************************************************************************
3
** Copyright (C) 2016 The Qt Company Ltd.
4
** Contact: https://www.qt.io/licensing/
6
** This file is part of the QtSql module of the Qt Toolkit.
8
** $QT_BEGIN_LICENSE:LGPL$
9
** Commercial License Usage
10
** Licensees holding valid commercial Qt licenses may use this file in
11
** accordance with the commercial license agreement provided with the
12
** Software or, alternatively, in accordance with the terms contained in
13
** a written agreement between you and The Qt Company. For licensing terms
14
** and conditions see https://www.qt.io/terms-conditions. For further
15
** information use the contact form at https://www.qt.io/contact-us.
17
** GNU Lesser General Public License Usage
18
** Alternatively, this file may be used under the terms of the GNU Lesser
19
** General Public License version 3 as published by the Free Software
20
** Foundation and appearing in the file LICENSE.LGPL3 included in the
21
** packaging of this file. Please review the following information to
22
** ensure the GNU Lesser General Public License version 3 requirements
23
** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
25
** GNU General Public License Usage
26
** Alternatively, this file may be used under the terms of the GNU
27
** General Public License version 2.0 or (at your option) the GNU General
28
** Public license version 3 or any later version approved by the KDE Free
29
** Qt Foundation. The licenses are as published by the Free Software
30
** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
31
** included in the packaging of this file. Please review the following
32
** information to ensure the GNU General Public License requirements will
33
** be met: https://www.gnu.org/licenses/gpl-2.0.html and
34
** https://www.gnu.org/licenses/gpl-3.0.html.
38
****************************************************************************/
40
#ifndef QSQLNULLDRIVER_P_H
41
#define QSQLNULLDRIVER_P_H
47
// This file is not part of the Qt API. This header file may
48
// change from version to version without notice, or even be
54
#include "QtCore/qvariant.h"
55
#include "QtSql/qsqldriver.h"
56
#include "QtSql/qsqlerror.h"
57
#include "QtSql/qsqlresult.h"
61
class QSqlNullResult : public QSqlResult
64
inline explicit QSqlNullResult(const QSqlDriver* d): QSqlResult(d)
65
{ QSqlResult::setLastError(
66
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
68
inline QVariant data(int) Q_DECL_OVERRIDE { return QVariant(); }
69
inline bool reset (const QString&) Q_DECL_OVERRIDE { return false; }
70
inline bool fetch(int) Q_DECL_OVERRIDE { return false; }
71
inline bool fetchFirst() Q_DECL_OVERRIDE { return false; }
72
inline bool fetchLast() Q_DECL_OVERRIDE { return false; }
73
inline bool isNull(int) Q_DECL_OVERRIDE { return false; }
74
inline int size() Q_DECL_OVERRIDE { return -1; }
75
inline int numRowsAffected() Q_DECL_OVERRIDE { return 0; }
77
inline void setAt(int) Q_DECL_OVERRIDE {}
78
inline void setActive(bool) Q_DECL_OVERRIDE {}
79
inline void setLastError(const QSqlError&) Q_DECL_OVERRIDE {}
80
inline void setQuery(const QString&) Q_DECL_OVERRIDE {}
81
inline void setSelect(bool) Q_DECL_OVERRIDE {}
82
inline void setForwardOnly(bool) Q_DECL_OVERRIDE {}
84
inline bool exec() Q_DECL_OVERRIDE { return false; }
85
inline bool prepare(const QString&) Q_DECL_OVERRIDE { return false; }
86
inline bool savePrepare(const QString&) Q_DECL_OVERRIDE { return false; }
87
inline void bindValue(int, const QVariant&, QSql::ParamType) Q_DECL_OVERRIDE {}
88
inline void bindValue(const QString&, const QVariant&, QSql::ParamType) Q_DECL_OVERRIDE {}
91
class QSqlNullDriver : public QSqlDriver
94
inline QSqlNullDriver(): QSqlDriver()
95
{ QSqlDriver::setLastError(
96
QSqlError(QLatin1String("Driver not loaded"), QLatin1String("Driver not loaded"), QSqlError::ConnectionError)); }
97
inline bool hasFeature(DriverFeature) const Q_DECL_OVERRIDE { return false; }
98
inline bool open(const QString &, const QString &, const QString &, const QString &, int, const QString&) Q_DECL_OVERRIDE
100
inline void close() Q_DECL_OVERRIDE {}
101
inline QSqlResult *createResult() const Q_DECL_OVERRIDE { return new QSqlNullResult(this); }
104
inline void setOpen(bool) Q_DECL_OVERRIDE {}
105
inline void setOpenError(bool) Q_DECL_OVERRIDE {}
106
inline void setLastError(const QSqlError&) Q_DECL_OVERRIDE {}
111
#endif // QSQLNULLDRIVER_P_H