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131 lines
4.2 KiB
131 lines
4.2 KiB
15 years ago
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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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 Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt 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 Nokia.
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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 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL 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 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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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 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QSQLQUERY_H
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#define QSQLQUERY_H
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#include <QtSql/qsql.h>
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#include <QtSql/qsqldatabase.h>
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#include <QtCore/qstring.h>
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QT_BEGIN_HEADER
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QT_BEGIN_NAMESPACE
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QT_MODULE(Sql)
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class QVariant;
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class QSqlDriver;
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class QSqlError;
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class QSqlResult;
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class QSqlRecord;
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template <class Key, class T> class QMap;
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class QSqlQueryPrivate;
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class Q_SQL_EXPORT QSqlQuery
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{
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public:
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QSqlQuery(QSqlResult *r);
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QSqlQuery(const QString& query = QString(), QSqlDatabase db = QSqlDatabase());
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explicit QSqlQuery(QSqlDatabase db);
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QSqlQuery(const QSqlQuery& other);
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QSqlQuery& operator=(const QSqlQuery& other);
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~QSqlQuery();
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bool isValid() const;
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bool isActive() const;
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bool isNull(int field) const;
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int at() const;
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QString lastQuery() const;
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int numRowsAffected() const;
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QSqlError lastError() const;
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bool isSelect() const;
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int size() const;
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const QSqlDriver* driver() const;
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const QSqlResult* result() const;
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bool isForwardOnly() const;
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QSqlRecord record() const;
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void setForwardOnly(bool forward);
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bool exec(const QString& query);
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QVariant value(int i) const;
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void setNumericalPrecisionPolicy(QSql::NumericalPrecisionPolicy precisionPolicy);
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QSql::NumericalPrecisionPolicy numericalPrecisionPolicy() const;
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bool seek(int i, bool relative = false);
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bool next();
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bool previous();
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#ifdef QT3_SUPPORT
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inline QT3_SUPPORT bool prev() { return previous(); }
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#endif
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bool first();
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bool last();
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void clear();
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// prepared query support
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bool exec();
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enum BatchExecutionMode { ValuesAsRows, ValuesAsColumns };
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bool execBatch(BatchExecutionMode mode = ValuesAsRows);
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bool prepare(const QString& query);
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void bindValue(const QString& placeholder, const QVariant& val,
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QSql::ParamType type = QSql::In);
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void bindValue(int pos, const QVariant& val, QSql::ParamType type = QSql::In);
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void addBindValue(const QVariant& val, QSql::ParamType type = QSql::In);
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QVariant boundValue(const QString& placeholder) const;
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QVariant boundValue(int pos) const;
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QMap<QString, QVariant> boundValues() const;
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QString executedQuery() const;
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QVariant lastInsertId() const;
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void finish();
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bool nextResult();
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private:
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QSqlQueryPrivate* d;
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};
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QT_END_NAMESPACE
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QT_END_HEADER
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#endif // QSQLQUERY_H
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