<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * 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 - 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 $result_assoc; /** * Number of rows in the result set * * @return int */ public function num_rows() { if (empty($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($this->result_assoc()); } /** * Fetch the result handler * * @return mixed */ public function result_assoc() { // If the result already fetched before, use that one if (count($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(); 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 * * @return int */ public function num_fields() { return $this->result_id->columnCount(); } // -------------------------------------------------------------------- /** * Fetch Field Names * * Generates an array of column names * * @return bool */ public function list_fields() { if ($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 * * @return array */ public function field_data() { $data = array(); try { if (strpos($this->result_id->queryString, 'PRAGMA') !== FALSE) { foreach ($this->result_array() as $field) { preg_match('/([a-zA-Z]+)(\(\d+\))?/', $field['type'], $matches); $F = new stdClass(); $F->name = $field['name']; $F->type = ( ! empty($matches[1])) ? $matches[1] : NULL; $F->default = NULL; $F->max_length = ( ! empty($matches[2])) ? preg_replace('/[^\d]/', '', $matches[2]) : NULL; $F->primary_key = (int) $field['pk']; $F->pdo_type = NULL; $data[] = $F; } } else { for($i = 0, $max = $this->num_fields(); $i < $max; $i++) { $field = $this->result_id->getColumnMeta($i); $F = new stdClass(); $F->name = $field['name']; $F->type = $field['native_type']; $F->default = NULL; $F->pdo_type = $field['pdo_type']; if ($field['precision'] < 0) { $F->max_length = NULL; $F->primary_key = 0; } else { $F->max_length = ($field['len'] > 255) ? 0 : $field['len']; $F->primary_key = (int) ( ! empty($field['flags']) && in_array('primary_key', $field['flags'])); } $data[] = $F; } } return $data; } catch (Exception $e) { if ($this->db->db_debug) { return $this->db->display_error('db_unsuported_feature'); } return FALSE; } } // -------------------------------------------------------------------- /** * Free the result * * @return void */ public function free_result() { if (is_object($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 * * @return object */ protected function _fetch_object() { return $this->result_id->fetchObject(); } } /* End of file pdo_result.php */ /* Location: ./system/database/drivers/pdo/pdo_result.php */