/* This file is part of the KDE project
   Copyright (C) 2003 Adam Pigg <adam@piggz.co.uk>

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public
   License as published by the Free Software Foundation; either
   version 2 of the License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this program; see the file COPYING.  If not, write to
   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
*/

#ifndef KEXIDB_DRIVER_PQXX_H
#define KEXIDB_DRIVER_PQXX_H

#include <db/driver.h>
//#include <pqxx/connection>
//#include <pqxx/nontransaction>

namespace KexiDB
{

class Connection;

//! PostgreSQL database driver.
class pqxxSqlDriver : public Driver
{
    Q_OBJECT
    KEXIDB_DRIVER

public:
    pqxxSqlDriver(QObject *parent, const QVariantList &args = QVariantList());
    ~pqxxSqlDriver();

    virtual bool isSystemObjectName(const QString& n)const;
    virtual bool isSystemDatabaseName(const QString& n)const;

    //! Escape a string for use as a value
    virtual QString escapeString(const QString& str) const;
    virtual QByteArray escapeString(const QByteArray& str) const;
    virtual QString sqlTypeName(int id_t, int p = 0) const;

    //! Escape BLOB value \a array
    virtual QString escapeBLOB(const QByteArray& array) const;

    /*! Escapes and converts value \a v (for type \a ftype)
     to string representation required by SQL commands.
     Reimplemented for boolean type only to use SQL compliant TRUE or FALSE */
    virtual QString valueToSQL(uint ftype, const QVariant& v) const;

protected:
    virtual QString drv_escapeIdentifier(const QString& str) const;
    virtual QByteArray drv_escapeIdentifier(const QByteArray& str) const;
    virtual Connection *drv_createConnection(ConnectionData &conn_data);
    virtual bool drv_isSystemFieldName(const QString& n)const;

private:
    static const char *keywords[];
    //pqxx::nullconnection _internalConn;
    //pqxx::nontransaction *_internalWork;
    
};

}

#endif
