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-rw-r--r--system/database/drivers/pdo/pdo_result.php183
1 files changed, 135 insertions, 48 deletions
diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index 7c4a2f977..19aee1dfc 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -1,20 +1,30 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
- * An open source application development framework for PHP 5.1.6 or newer
+ * 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
- * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
- * @license http://codeigniter.com/user_guide/license.html
* @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 2.1.1
+ * @since Version 2.1.0
* @filesource
*/
-// ------------------------------------------------------------------------
-
/**
* PDO Result Class
*
@@ -27,14 +37,73 @@
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
+ * @return int
*/
- function num_rows()
+ public function num_rows()
{
- return $this->result_id->rowCount();
+ if (empty($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;
}
// --------------------------------------------------------------------
@@ -42,10 +111,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Number of fields in the result set
*
- * @access public
- * @return integer
+ * @return int
*/
- function num_fields()
+ public function num_fields()
{
return $this->result_id->columnCount();
}
@@ -57,15 +125,15 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Generates an array of column names
*
- * @access public
- * @return array
+ * @return bool
*/
- function list_fields()
+ public function list_fields()
{
if ($this->db->db_debug)
{
return $this->db->display_error('db_unsuported_feature');
}
+
return FALSE;
}
@@ -76,20 +144,58 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Generates an array of objects containing field meta-data
*
- * @access public
* @return array
*/
- function field_data()
+ public function field_data()
{
$data = array();
-
+
try
{
- for($i = 0; $i < $this->num_fields(); $i++)
+ if (strpos($this->result_id->queryString, 'PRAGMA') !== FALSE)
{
- $data[] = $this->result_id->getColumnMeta($i);
+ 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)
@@ -98,6 +204,7 @@ class CI_DB_pdo_result extends CI_DB_result {
{
return $this->db->display_error('db_unsuported_feature');
}
+
return FALSE;
}
}
@@ -107,9 +214,9 @@ class CI_DB_pdo_result extends CI_DB_result {
/**
* Free the result
*
- * @return null
+ * @return void
*/
- function free_result()
+ public function free_result()
{
if (is_object($this->result_id))
{
@@ -120,31 +227,13 @@ class CI_DB_pdo_result extends CI_DB_result {
// --------------------------------------------------------------------
/**
- * 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()
+ protected function _fetch_assoc()
{
return $this->result_id->fetch(PDO::FETCH_ASSOC);
}
@@ -156,16 +245,14 @@ class CI_DB_pdo_result extends CI_DB_result {
*
* Returns the result set as an object
*
- * @access private
* @return object
*/
- function _fetch_object()
- {
+ protected function _fetch_object()
+ {
return $this->result_id->fetchObject();
}
}
-
/* End of file pdo_result.php */
/* Location: ./system/database/drivers/pdo/pdo_result.php */ \ No newline at end of file