Merge CodeIgniter 3 support

1 files changed, 141 insertions, 101 deletions

diff --git a/system/database/drivers/odbc/odbc_result.php b/system/database/drivers/odbc/odbc_result.php
index 0963e9796..845aa9c79 100644
--- a/system/database/drivers/odbc/odbc_result.php
+++ b/system/database/drivers/odbc/odbc_result.php
@@ -1,40 +1,82 @@
-<?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
- * @author		ExpressionEngine Dev Team
- * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc.
- * @license		http://codeigniter.com/user_guide/license.html
- * @link		http://codeigniter.com
- * @since		Version 1.0
+ * 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 1.3.0
  * @filesource
  */
-
-// ------------------------------------------------------------------------
+defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
  * ODBC Result Class
  *
  * This class extends the parent result class: CI_DB_result
  *
+ * @package		CodeIgniter
+ * @subpackage	Drivers
  * @category	Database
- * @author		ExpressionEngine Dev Team
- * @link		http://codeigniter.com/user_guide/database/
+ * @author		EllisLab Dev Team
+ * @link		https://codeigniter.com/user_guide/database/
  */
 class CI_DB_odbc_result extends CI_DB_result {
 
 	/**
 	 * Number of rows in the result set
 	 *
-	 * @access	public
-	 * @return	integer
+	 * @return	int
 	 */
-	function num_rows()
+	public function num_rows()
 	{
-		return @odbc_num_rows($this->result_id);
+		if (is_int($this->num_rows))
+		{
+			return $this->num_rows;
+		}
+		elseif (($this->num_rows = odbc_num_rows($this->result_id)) !== -1)
+		{
+			return $this->num_rows;
+		}
+
+		// Work-around for ODBC subdrivers that don't support num_rows()
+		if (count($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);
+		}
+
+		return $this->num_rows = count($this->result_array());
 	}
 
 	// --------------------------------------------------------------------
@@ -42,12 +84,11 @@ class CI_DB_odbc_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 @odbc_num_fields($this->result_id);
+		return odbc_num_fields($this->result_id);
 	}
 
 	// --------------------------------------------------------------------
@@ -57,15 +98,19 @@ class CI_DB_odbc_result extends CI_DB_result {
 	 *
 	 * Generates an array of column names
 	 *
-	 * @access	public
 	 * @return	array
 	 */
-	function list_fields()
+	public function list_fields()
 	{
 		$field_names = array();
-		for ($i = 0; $i < $this->num_fields(); $i++)
+		$num_fields = $this->num_fields();
+
+		if ($num_fields > 0)
 		{
-			$field_names[]	= odbc_field_name($this->result_id, $i);
+			for ($i = 1; $i <= $num_fields; $i++)
+			{
+				$field_names[] = odbc_field_name($this->result_id, $i);
+			}
 		}
 
 		return $field_names;
@@ -78,22 +123,19 @@ class CI_DB_odbc_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()
 	{
 		$retval = array();
-		for ($i = 0; $i < $this->num_fields(); $i++)
+		for ($i = 0, $odbc_index = 1, $c = $this->num_fields(); $i < $c; $i++, $odbc_index++)
 		{
-			$F				= new stdClass();
-			$F->name		= odbc_field_name($this->result_id, $i);
-			$F->type		= odbc_field_type($this->result_id, $i);
-			$F->max_length	= odbc_field_len($this->result_id, $i);
-			$F->primary_key = 0;
-			$F->default		= '';
-
-			$retval[] = $F;
+			$retval[$i]			= new stdClass();
+			$retval[$i]->name		= odbc_field_name($this->result_id, $odbc_index);
+			$retval[$i]->type		= odbc_field_type($this->result_id, $odbc_index);
+			$retval[$i]->max_length		= odbc_field_len($this->result_id, $odbc_index);
+			$retval[$i]->primary_key	= 0;
+			$retval[$i]->default		= '';
 		}
 
 		return $retval;
@@ -104,9 +146,9 @@ class CI_DB_odbc_result extends CI_DB_result {
 	/**
 	 * Free the result
 	 *
-	 * @return	null
+	 * @return	void
 	 */
-	function free_result()
+	public function free_result()
 	{
 		if (is_resource($this->result_id))
 		{
@@ -118,111 +160,109 @@ class CI_DB_odbc_result extends CI_DB_result {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Data Seek
+	 * Result - associative array
 	 *
-	 * Moves the internal pointer to the desired offset.  We call
-	 * this internally before fetching results to make sure the
-	 * result set starts at zero
+	 * Returns the result set as an array
 	 *
-	 * @access	private
 	 * @return	array
 	 */
-	function _data_seek($n = 0)
+	protected function _fetch_assoc()
 	{
-		return FALSE;
+		return odbc_fetch_array($this->result_id);
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Result - associative array
+	 * Result - object
 	 *
-	 * Returns the result set as an array
+	 * Returns the result set as an object
 	 *
-	 * @access	private
-	 * @return	array
+	 * @param	string	$class_name
+	 * @return	object
 	 */
-	function _fetch_assoc()
+	protected function _fetch_object($class_name = 'stdClass')
 	{
-		if (function_exists('odbc_fetch_object'))
+		$row = odbc_fetch_object($this->result_id);
+
+		if ($class_name === 'stdClass' OR ! $row)
 		{
-			return odbc_fetch_array($this->result_id);
+			return $row;
 		}
-		else
+
+		$class_name = new $class_name();
+		foreach ($row as $key => $value)
 		{
-			return $this->_odbc_fetch_array($this->result_id);
+			$class_name->$key = $value;
 		}
+
+		return $class_name;
 	}
 
-	// --------------------------------------------------------------------
+}
 
+// --------------------------------------------------------------------
+
+if ( ! function_exists('odbc_fetch_array'))
+{
 	/**
-	 * Result - object
+	 * ODBC Fetch array
 	 *
-	 * Returns the result set as an object
+	 * Emulates the native odbc_fetch_array() function when
+	 * it is not available (odbc_fetch_array() requires unixODBC)
 	 *
-	 * @access	private
-	 * @return	object
+	 * @param	resource	&$result
+	 * @param	int		$rownumber
+	 * @return	array
 	 */
-	function _fetch_object()
+	function odbc_fetch_array(&$result, $rownumber = 1)
 	{
-		if (function_exists('odbc_fetch_object'))
+		$rs = array();
+		if ( ! odbc_fetch_into($result, $rs, $rownumber))
 		{
-			return odbc_fetch_object($this->result_id);
+			return FALSE;
 		}
-		else
+
+		$rs_assoc = array();
+		foreach ($rs as $k => $v)
 		{
-			return $this->_odbc_fetch_object($this->result_id);
+			$field_name = odbc_field_name($result, $k+1);
+			$rs_assoc[$field_name] = $v;
 		}
+
+		return $rs_assoc;
 	}
+}
 
+// --------------------------------------------------------------------
 
+if ( ! function_exists('odbc_fetch_object'))
+{
 	/**
-	 * Result - object
+	 * ODBC Fetch object
 	 *
-	 * subsititutes the odbc_fetch_object function when
-	 * not available (odbc_fetch_object requires unixODBC)
+	 * Emulates the native odbc_fetch_object() function when
+	 * it is not available.
 	 *
-	 * @access	private
+	 * @param	resource	&$result
+	 * @param	int		$rownumber
 	 * @return	object
 	 */
-	function _odbc_fetch_object(& $odbc_result) {
+	function odbc_fetch_object(&$result, $rownumber = 1)
+	{
 		$rs = array();
-		$rs_obj = FALSE;
-		if (odbc_fetch_into($odbc_result, $rs)) {
-			foreach ($rs as $k=>$v) {
-				$field_name= odbc_field_name($odbc_result, $k+1);
-				$rs_obj->$field_name = $v;
-			}
+		if ( ! odbc_fetch_into($result, $rs, $rownumber))
+		{
+			return FALSE;
 		}
-		return $rs_obj;
-	}
-
 
-	/**
-	 * Result - array
-	 *
-	 * subsititutes the odbc_fetch_array function when
-	 * not available (odbc_fetch_array requires unixODBC)
-	 *
-	 * @access	private
-	 * @return	array
-	 */
-	function _odbc_fetch_array(& $odbc_result) {
-		$rs = array();
-		$rs_assoc = FALSE;
-		if (odbc_fetch_into($odbc_result, $rs)) {
-			$rs_assoc=array();
-			foreach ($rs as $k=>$v) {
-				$field_name= odbc_field_name($odbc_result, $k+1);
-				$rs_assoc[$field_name] = $v;
-			}
+		$rs_object = new stdClass();
+		foreach ($rs as $k => $v)
+		{
+			$field_name = odbc_field_name($result, $k+1);
+			$rs_object->$field_name = $v;
 		}
-		return $rs_assoc;
-	}
 
+		return $rs_object;
+	}
 }
-
-
-/* End of file odbc_result.php */
-/* Location: ./system/database/drivers/odbc/odbc_result.php */
\ No newline at end of file