postgresqlResultSet.hpp

/*
  ANCH Framework: ANother C++ Hack is a C++ framework based on C++11 standard
  Copyright (C) 2012 Vincent Lachenal
 
  This file is part of ANCH Framework.
 
  ANCH Framework 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, either version 3 of the License, or
  (at your option) any later version.
 
  ANCH Framework 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 Public License for more details.
 
  You should have received a copy of the GNU Lesser General Public License
  along with ANCH Framework.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifdef ANCH_SQL_POSTGRESQL
#pragma once
 
#include "sql/resultSet.hpp"
 
 
typedef struct pg_conn PGconn;
typedef struct pg_result PGresult;
 
 
namespace anch {
  namespace sql {

    class PostgreSQLResultSet: public ResultSet {
 
      // Attributes +
    private:
      PGconn* _conn;

      PGresult* _result;

      int _currentRow;

      int _nbRows;

      int _nbFields;
      // Attributes -
 
      // Constructors +
    public:
      PostgreSQLResultSet(PGconn* conn) noexcept;
      // Constructors -
 
      // Destructor +
    public:
      virtual ~PostgreSQLResultSet() noexcept;
      // Destructor -
 
      // Methods +
    public:
      virtual bool next();
 
    protected:
      virtual bool getValue(std::size_t idx, std::string& out) override;

      virtual std::optional<std::string> getValue(std::size_t idx) override;

      virtual const anch::date::DateFormatter& getDateFormatter() override;

      virtual const anch::date::DateFormatter& getTimeFormatter() override;

      virtual const anch::date::DateFormatter& getTimestampFormatter() override;
      // Methods -
 
    };
 
  }
}
 
#endif // ANCH_SQL_POSTGRESQL