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<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
 * CodeIgniter
 *
 * An open source application development framework for PHP 5.1.6 or newer
 *
 * @package             CodeIgniter
 * @copyright   Copyright (c) 2008 - 2011, EllisLab, Inc.
 * @license             http://codeigniter.com/user_guide/license.html
 * @author              EllisLab Dev Team
 * @link                http://codeigniter.com
 * @since               Version 2.1.2
 * @filesource
 */

// ------------------------------------------------------------------------

/**
 * PDO Utility Class
 *
 * @category    Database
 * @author              EllisLab Dev Team
 * @link                http://codeigniter.com/database/
 */
class CI_DB_pdo_utility extends CI_DB_utility {

        /**
         * List databases
         *
         * @access      private
         * @return      bool
         */
        function _list_databases()
        {
                // Not sure if PDO lets you list all databases...
                if ($this->db->db_debug)
                {
                        return $this->db->display_error('db_unsuported_feature');
                }
                return FALSE;
        }

        // --------------------------------------------------------------------

        /**
         * Optimize table query
         *
         * Generates a platform-specific query so that a table can be optimized
         *
         * @access      private
         * @param       string  the table name
         * @return      object
         */
        function _optimize_table($table)
        {
                // Not a supported PDO feature
                if ($this->db->db_debug)
                {
                        return $this->db->display_error('db_unsuported_feature');
                }
                return FALSE;
        }

        // --------------------------------------------------------------------

        /**
         * Repair table query
         *
         * Generates a platform-specific query so that a table can be repaired
         *
         * @access      private
         * @param       string  the table name
         * @return      object
         */
        function _repair_table($table)
        {
                // Not a supported PDO feature
                if ($this->db->db_debug)
                {
                        return $this->db->display_error('db_unsuported_feature');
                }
                return FALSE;
        }

        // --------------------------------------------------------------------

        /**
         * PDO Export
         *
         * @access      private
         * @param       array   Preferences
         * @return      mixed
         */
        function _backup($params = array())
        {
                // Currently unsupported
                return $this->db->display_error('db_unsuported_feature');
        }

}

/* End of file pdo_utility.php */
/* Location: ./system/database/drivers/pdo/pdo_utility.php */