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<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.2.4 or newer
*
* NOTICE OF LICENSE
*
* Licensed under the Open Software License version 3.0
*
* This source file is subject to the Open Software License (OSL 3.0) that is
* bundled with this package in the files license.txt / license.rst. It is
* also available through the world wide web at this URL:
* http://opensource.org/licenses/OSL-3.0
* If you did not receive a copy of the license and are unable to obtain it
* through the world wide web, please send an email to
* licensing@ellislab.com so we can send you a copy immediately.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
* @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');

/**
* Postgres Result Class
*
* This class extends the parent result class: CI_DB_result
*
* @category Database
* @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/database/
* @since 1.3
*/
class CI_DB_postgre_result extends CI_DB_result {

/**
* Number of rows in the result set
*
* @return int
*/
public function num_rows()
{
return is_int($this->num_rows)
? $this->num_rows
: $this->num_rows = pg_num_rows($this->result_id);
}

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

/**
* Number of fields in the result set
*
* @return int
*/
public function num_fields()
{
return pg_num_fields($this->result_id);
}

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

/**
* Fetch Field Names
*
* Generates an array of column names
*
* @return array
*/
public function list_fields()
{
$field_names = array();
for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
{
$field_names[] = pg_field_name($this->result_id, $i);
}

return $field_names;
}

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

/**
* Field data
*
* Generates an array of objects containing field meta-data
*
* @return array
*/
public function field_data()
{
$retval = array();
for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
{
$retval[$i] = new stdClass();
$retval[$i]->name = pg_field_name($this->result_id, $i);
$retval[$i]->type = pg_field_type($this->result_id, $i);
$retval[$i]->max_length = pg_field_size($this->result_id, $i);
}

return $retval;
}

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

/**
* Free the result
*
* @return void
*/
public function free_result()
{
if (is_resource($this->result_id))
{
pg_free_result($this->result_id);
$this->result_id = FALSE;
}
}

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

/**
* Data Seek
*
* Moves the internal pointer to the desired offset. We call
* this internally before fetching results to make sure the
* result set starts at zero.
*
* @param int $n
* @return bool
*/
public function data_seek($n = 0)
{
return pg_result_seek($this->result_id, $n);
}

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

/**
* Result - associative array
*
* Returns the result set as an array
*
* @return array
*/
protected function _fetch_assoc()
{
return pg_fetch_assoc($this->result_id);
}

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

/**
* Result - object
*
* Returns the result set as an object
*
* @param string $class_name
* @return object
*/
protected function _fetch_object($class_name = 'stdClass')
{
return pg_fetch_object($this->result_id, NULL, $class_name);
}

}

/* End of file postgre_result.php */
/* Location: ./system/database/drivers/postgre/postgre_result.php */
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