PostgreSQLInterface.h

/*
 * Copyright (c) 2015 Pavel Vainerman.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, version 2.1.
 *
 * 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
 * Lesser General Lesser Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */
//----------------------------------------------------------------------------
#ifndef PostgreSQLInterface_H_
#define PostgreSQLInterface_H_
// ---------------------------------------------------------------------------
#include <string>
#include <list>
#include <vector>
#include <queue>
#include <iostream>
#include <pqxx/pqxx>
#include <PassiveTimer.h>
#include <DBInterface.h>
// -------------------------------------------------------------------------
namespace uniset
{
// ----------------------------------------------------------------------------
class PostgreSQLInterface:
    public DBNetInterface
{
    public:

        PostgreSQLInterface();
        ~PostgreSQLInterface();

        virtual bool nconnect( const std::string& host, const std::string& user,
                               const std::string& pswd, const std::string& dbname,
                               unsigned int port = 5432) override;
        virtual bool close() override;
        virtual bool isConnection() const override;
        virtual bool ping() const override;

        virtual DBResult query( const std::string& q ) override;
        virtual const std::string lastQuery() override;

        virtual bool insert( const std::string& q ) override;
        bool insertAndSaveRowid( const std::string& q );
        virtual double insert_id() override;
        void save_inserted_id( const pqxx::result& res );

        typedef std::list<std::string> Record;
        typedef std::vector<Record> Data;

        // fast insert: Use COPY..from SDTIN..
        bool copy( const std::string& tblname, const std::list<std::string>& cols, const Data& data );

        virtual const std::string error() override;

    protected:

    private:

        void makeResult(DBResult& dbres, const pqxx::result& res );
        std::shared_ptr<pqxx::connection> db;
        std::string lastQ;
        std::string lastE;
        double last_inserted_id;
};
// ----------------------------------------------------------------------------------
} // end of namespace uniset
// ----------------------------------------------------------------------------
#endif
// ----------------------------------------------------------------------------------