<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * * An open source application development framework for PHP 5.1.6 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 - 2012, 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 2.1.0 * @filesource */ // ------------------------------------------------------------------------ /** * PDO 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/ */ class CI_DB_pdo_result extends CI_DB_result { /** * @var bool Hold the flag whether a result handler already fetched before */ protected $is_fetched = FALSE; /** * @var mixed Hold the fetched assoc array of a result handler */ protected $result_assoc; /** * Number of rows in the result set * * @access public * @return integer */ function num_rows() { if (empty($this->result_id) OR ! is_object($this->result_id)) { // invalid result handler return 0; } elseif (($num_rows = $this->result_id->rowCount()) && $num_rows > 0) { // If rowCount return something, we're done. return $num_rows; } // Fetch the result, instead perform another extra query return ($this->is_fetched && is_array($this->result_assoc)) ? count($this->result_assoc) : count($this->result_assoc()); } /** * Fetch the result handler * * @access public * @return mixed */ function result_assoc() { // If the result already fetched before, use that one if (count($this->result_array) > 0 OR $this->is_fetched) { return $this->result_array(); } // Define the output $output = array('assoc', 'object'); // Fetch the result foreach ($output as $type) { // Define the method and handler $res_method = '_fetch_'.$type; $res_handler = 'result_'.$type; $this->$res_handler = array(); $this->_data_seek(0); while ($row = $this->$res_method()) { $this->{$res_handler}[] = $row; } } // Save this as buffer and marked the fetch flag $this->result_array = $this->result_assoc; $this->is_fetched = TRUE; return $this->result_assoc; } // -------------------------------------------------------------------- /** * Number of fields in the result set * * @access public * @return integer */ function num_fields() { return $this->result_id->columnCount(); } // -------------------------------------------------------------------- /** * Fetch Field Names * * Generates an array of column names * * @access public * @return array */ function list_fields() { if ($this->db->db_debug) { return $this->db->display_error('db_unsuported_feature'); } return FALSE; } // -------------------------------------------------------------------- /** * Field data * * Generates an array of objects containing field meta-data * * @access public * @return array */ function field_data() { $data = array(); try { for($i = 0; $i < $this->num_fields(); $i++) { $data[] = $this->result_id->getColumnMeta($i); } return $data; } catch (Exception $e) { if ($this->db->db_debug) { return $this->db->display_error('db_unsuported_feature'); } return FALSE; } } // -------------------------------------------------------------------- /** * Free the result * * @return null */ function free_result() { if (is_object($this->result_id)) { $this->result_id = FALSE; } } // -------------------------------------------------------------------- /** * Data Seek * * Moves the internal pointer to the desired offset. We call * this internally before fetching results to make sure the * result set starts at zero * * @access private * @return array */ function _data_seek($n = 0) { return FALSE; } // -------------------------------------------------------------------- /** * Result - associative array * * Returns the result set as an array * * @access private * @return array */ function _fetch_assoc() { return $this->result_id->fetch(PDO::FETCH_ASSOC); } // -------------------------------------------------------------------- /** * Result - object * * Returns the result set as an object * * @access private * @return object */ function _fetch_object() { return $this->result_id->fetchObject(); } } /* End of file pdo_result.php */ /* Location: ./system/database/drivers/pdo/pdo_result.php */