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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtSql module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain
** additional rights. These rights are described in the Nokia Qt LGPL
** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QSQLQUERY_H
#define QSQLQUERY_H
#include <QtSql/qsql.h>
#include <QtSql/qsqldatabase.h>
#include <QtCore/qstring.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Sql)
class QVariant;
class QSqlDriver;
class QSqlError;
class QSqlResult;
class QSqlRecord;
template <class Key, class T> class QMap;
class QSqlQueryPrivate;
class Q_SQL_EXPORT QSqlQuery
{
public:
QSqlQuery(QSqlResult *r);
QSqlQuery(const QString& query = QString(), QSqlDatabase db = QSqlDatabase());
explicit QSqlQuery(QSqlDatabase db);
QSqlQuery(const QSqlQuery& other);
QSqlQuery& operator=(const QSqlQuery& other);
~QSqlQuery();
bool isValid() const;
bool isActive() const;
bool isNull(int field) const;
int at() const;
QString lastQuery() const;
int numRowsAffected() const;
QSqlError lastError() const;
bool isSelect() const;
int size() const;
const QSqlDriver* driver() const;
const QSqlResult* result() const;
bool isForwardOnly() const;
QSqlRecord record() const;
void setForwardOnly(bool forward);
bool exec(const QString& query);
QVariant value(int i) const;
void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
bool seek(int i, bool relative = false);
bool next();
bool previous();
#ifdef QT3_SUPPORT
inline QT3_SUPPORT bool prev() { return previous(); }
#endif
bool first();
bool last();
void clear();
// prepared query support
bool exec();
enum BatchExecutionMode { ValuesAsRows, ValuesAsColumns };
bool execBatch(BatchExecutionMode mode = ValuesAsRows);
bool prepare(const QString& query);
void bindValue(const QString& placeholder, const QVariant& val,
QSql::ParamType type = QSql::In);
void bindValue(int pos, const QVariant& val, QSql::ParamType type = QSql::In);
void addBindValue(const QVariant& val, QSql::ParamType type = QSql::In);
QVariant boundValue(const QString& placeholder) const;
QVariant boundValue(int pos) const;
QMap<QString, QVariant> boundValues() const;
QString executedQuery() const;
QVariant lastInsertId() const;
void finish();
bool nextResult();
private:
QSqlQueryPrivate* d;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QSQLQUERY_H
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