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<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2014 - 2019, British Columbia Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
* @license https://opensource.org/licenses/MIT MIT License
* @link https://codeigniter.com
* @since Version 2.1.0
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
/**
* PDO Result Class
*
* This class extends the parent result class: CI_DB_result
*
* @package CodeIgniter
* @subpackage Drivers
* @category Database
* @author EllisLab Dev Team
* @link https://codeigniter.com/user_guide/database/
*/
class CI_DB_pdo_result extends CI_DB_result {
/**
* Number of rows in the result set
*
* @return int
*/
public function num_rows()
{
if (is_int($this->num_rows))
{
return $this->num_rows;
}
elseif (count($this->result_array) > 0)
{
return $this->num_rows = count($this->result_array);
}
elseif (count($this->result_object) > 0)
{
return $this->num_rows = count($this->result_object);
}
elseif (($num_rows = $this->result_id->rowCount()) > 0)
{
return $this->num_rows = $num_rows;
}
return $this->num_rows = count($this->result_array());
}
// --------------------------------------------------------------------
/**
* Number of fields in the result set
*
* @return int
*/
public function num_fields()
{
return $this->result_id->columnCount();
}
// --------------------------------------------------------------------
/**
* Fetch Field Names
*
* Generates an array of column names
*
* @return bool
*/
public function list_fields()
{
$field_names = array();
for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
{
// Might trigger an E_WARNING due to not all subdrivers
// supporting getColumnMeta()
$field_names[$i] = @$this->result_id->getColumnMeta($i);
$field_names[$i] = $field_names[$i]['name'];
}
return $field_names;
}
// --------------------------------------------------------------------
/**
* Field data
*
* Generates an array of objects containing field meta-data
*
* @return array
*/
public function field_data()
{
try
{
$retval = array();
for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
{
$field = $this->result_id->getColumnMeta($i);
$retval[$i] = new stdClass();
$retval[$i]->name = $field['name'];
$retval[$i]->type = isset($field['native_type']) ? $field['native_type'] : null;
$retval[$i]->max_length = ($field['len'] > 0) ? $field['len'] : NULL;
$retval[$i]->primary_key = (int) ( ! empty($field['flags']) && in_array('primary_key', $field['flags'], TRUE));
}
return $retval;
}
catch (Exception $e)
{
if ($this->db->db_debug)
{
return $this->db->display_error('db_unsupported_feature');
}
return FALSE;
}
}
// --------------------------------------------------------------------
/**
* Free the result
*
* @return void
*/
public function free_result()
{
if (is_object($this->result_id))
{
$this->result_id = FALSE;
}
}
// --------------------------------------------------------------------
/**
* Result - associative array
*
* Returns the result set as an array
*
* @return array
*/
protected function _fetch_assoc()
{
return $this->result_id->fetch(PDO::FETCH_ASSOC);
}
// --------------------------------------------------------------------
/**
* Result - object
*
* Returns the result set as an object
*
* @param string $class_name
* @return object
*/
protected function _fetch_object($class_name = 'stdClass')
{
return $this->result_id->fetchObject($class_name);
}
}
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