147 lines
4.7 KiB
C++
147 lines
4.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the QtSql module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 3 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL3 included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 3 requirements
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** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 2.0 or (at your option) the GNU General
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** Public license version 3 or any later version approved by the KDE Free
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** Qt Foundation. The licenses are as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-2.0.html and
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** https://www.gnu.org/licenses/gpl-3.0.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSQLRESULT_P_H
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#define QSQLRESULT_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of qsql*model.h . This header file may change from version to version
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// without notice, or even be removed.
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//
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// We mean it.
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//
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#include <QtCore/qpointer.h>
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#include "qsqlerror.h"
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#include "qsqlresult.h"
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#include "qsqldriver.h"
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QT_BEGIN_NAMESPACE
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// convenience method Q*ResultPrivate::drv_d_func() returns pointer to private driver. Compare to Q_DECLARE_PRIVATE in qglobal.h.
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#define Q_DECLARE_SQLDRIVER_PRIVATE(Class) \
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inline const Class##Private* drv_d_func() const { return !sqldriver ? nullptr : reinterpret_cast<const Class *>(static_cast<const QSqlDriver*>(sqldriver))->d_func(); } \
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inline Class##Private* drv_d_func() { return !sqldriver ? nullptr : reinterpret_cast<Class *>(static_cast<QSqlDriver*>(sqldriver))->d_func(); }
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struct QHolder {
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QHolder(const QString &hldr = QString(), int index = -1): holderName(hldr), holderPos(index) { }
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bool operator==(const QHolder &h) const { return h.holderPos == holderPos && h.holderName == holderName; }
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bool operator!=(const QHolder &h) const { return h.holderPos != holderPos || h.holderName != holderName; }
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QString holderName;
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int holderPos;
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};
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class Q_SQL_EXPORT QSqlResultPrivate
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{
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Q_DECLARE_PUBLIC(QSqlResult)
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public:
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QSqlResultPrivate(QSqlResult *q, const QSqlDriver *drv)
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: q_ptr(q),
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sqldriver(const_cast<QSqlDriver*>(drv)),
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idx(QSql::BeforeFirstRow),
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active(false),
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isSel(false),
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forwardOnly(false),
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precisionPolicy(QSql::LowPrecisionDouble),
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bindCount(0),
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binds(QSqlResult::PositionalBinding)
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{ }
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virtual ~QSqlResultPrivate() { }
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void clearValues()
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{
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values.clear();
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bindCount = 0;
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}
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void resetBindCount()
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{
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bindCount = 0;
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}
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void clearIndex()
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{
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indexes.clear();
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holders.clear();
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types.clear();
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}
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void clear()
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{
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clearValues();
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clearIndex();;
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}
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virtual QString fieldSerial(int) const;
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QString positionalToNamedBinding(const QString &query) const;
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QString namedToPositionalBinding(const QString &query);
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QString holderAt(int index) const;
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QSqlResult *q_ptr;
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QPointer<QSqlDriver> sqldriver;
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int idx;
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QString sql;
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bool active;
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bool isSel;
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QSqlError error;
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bool forwardOnly;
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QSql::NumericalPrecisionPolicy precisionPolicy;
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int bindCount;
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QSqlResult::BindingSyntax binds;
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QString executedQuery;
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QHash<int, QSql::ParamType> types;
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QVector<QVariant> values;
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typedef QHash<QString, QList<int> > IndexMap;
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IndexMap indexes;
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typedef QVector<QHolder> QHolderVector;
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QHolderVector holders;
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};
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QT_END_NAMESPACE
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#endif // QSQLRESULT_P_H
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