Merge CodeIgniter 3 support

1 files changed, 80 insertions, 65 deletions

diff --git a/system/database/drivers/pdo/pdo_result.php b/system/database/drivers/pdo/pdo_result.php
index 4843df43b..bbc2cdc5a 100644
--- a/system/database/drivers/pdo/pdo_result.php
+++ b/system/database/drivers/pdo/pdo_result.php
@@ -1,33 +1,55 @@
-<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
 /**
  * CodeIgniter
  *
- * An open source application development framework for PHP 5.1.6 or newer
+ * An open source application development framework for PHP
  *
- * @package		CodeIgniter
- * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @author		EllisLab Dev Team
- * @link		http://codeigniter.com
- * @since		Version 2.1.2
+ * This content is released under the MIT License (MIT)
+ *
+ * Copyright (c) 2014 - 2017, 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 - 2017, British Columbia Institute of Technology (http://bcit.ca/)
+ * @license	http://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		http://codeigniter.com/user_guide/database/
+ * @link		https://codeigniter.com/user_guide/database/
  */
 class CI_DB_pdo_result extends CI_DB_result {
 
-	public $num_rows;
-
 	/**
 	 * Number of rows in the result set
 	 *
@@ -39,14 +61,20 @@ class CI_DB_pdo_result extends CI_DB_result {
 		{
 			return $this->num_rows;
 		}
-		elseif (($this->num_rows = $this->result_id->rowCount()) > 0)
+		elseif (count($this->result_array) > 0)
 		{
-			return $this->num_rows;
+			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;
 		}
 
-		$this->num_rows = count($this->result_id->fetchAll());
-		$this->result_id->execute();
-		return $this->num_rows;
+		return $this->num_rows = count($this->result_array());
 	}
 
 	// --------------------------------------------------------------------
@@ -54,10 +82,9 @@ 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 $this->result_id->columnCount();
 	}
@@ -69,16 +96,20 @@ class CI_DB_pdo_result extends CI_DB_result {
 	 *
 	 * Generates an array of column names
 	 *
-	 * @access	public
-	 * @return	array
+	 * @return	bool
 	 */
-	function list_fields()
+	public function list_fields()
 	{
-		if ($this->db->db_debug)
+		$field_names = array();
+		for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
 		{
-			return $this->db->display_error('db_unsuported_feature');
+			// 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 FALSE;
+
+		return $field_names;
 	}
 
 	// --------------------------------------------------------------------
@@ -88,28 +119,34 @@ 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++)
+			$retval = array();
+
+			for ($i = 0, $c = $this->num_fields(); $i < $c; $i++)
 			{
-				$data[] = $this->result_id->getColumnMeta($i);
+				$field = $this->result_id->getColumnMeta($i);
+
+				$retval[$i]			= new stdClass();
+				$retval[$i]->name		= $field['name'];
+				$retval[$i]->type		= $field['native_type'];
+				$retval[$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 $data;
+
+			return $retval;
 		}
 		catch (Exception $e)
 		{
 			if ($this->db->db_debug)
 			{
-				return $this->db->display_error('db_unsuported_feature');
+				return $this->db->display_error('db_unsupported_feature');
 			}
+
 			return FALSE;
 		}
 	}
@@ -119,9 +156,9 @@ class CI_DB_pdo_result extends CI_DB_result {
 	/**
 	 * Free the result
 	 *
-	 * @return	null
+	 * @return	void
 	 */
-	function free_result()
+	public function free_result()
 	{
 		if (is_object($this->result_id))
 		{
@@ -132,31 +169,13 @@ 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);
 	}
@@ -168,16 +187,12 @@ class CI_DB_pdo_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
-	 * @access	private
+	 * @param	string	$class_name
 	 * @return	object
 	 */
-	function _fetch_object()
-	{	
-		return $this->result_id->fetchObject();
+	protected function _fetch_object($class_name = 'stdClass')
+	{
+		return $this->result_id->fetchObject($class_name);
 	}
 
 }
-
-
-/* End of file pdo_result.php */
-/* Location: ./system/database/drivers/pdo/pdo_result.php */
\ No newline at end of file