From 0e8968ab7c309d17cd61079f7554ced1411a8792 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 26 Jan 2012 02:04:37 +0200
Subject: Improve the SQLSRV (MSSQL) database driver

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php  | 285 +++++++++-------------
 system/database/drivers/sqlsrv/sqlsrv_forge.php   | 138 ++++-------
 system/database/drivers/sqlsrv/sqlsrv_result.php  |  62 ++---
 system/database/drivers/sqlsrv/sqlsrv_utility.php |  39 ++-
 4 files changed, 206 insertions(+), 318 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 6fd52ef70..cdd178261 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -1,13 +1,13 @@
-<?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
  *
  * 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:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * SQLSRV Database Adapter Class
  *
@@ -42,46 +40,46 @@
  */
 class CI_DB_sqlsrv_driver extends CI_DB {
 
-	var $dbdriver = 'sqlsrv';
+	public $dbdriver = 'sqlsrv';
 
 	// The character used for escaping
-	var $_escape_char = '';
+	protected $_escape_char = '';
 
 	// clause and character used for LIKE escape sequences
-	var $_like_escape_str = " ESCAPE '%s' ";
-	var $_like_escape_chr = '!';
+	protected $_like_escape_str = ' ESCAPE \'%s\' ';
+	protected $_like_escape_chr = '!';
 
 	/**
 	 * The syntax to count rows is slightly different across different
 	 * database engines, so this string appears in each driver and is
 	 * used for the count_all() and count_all_results() functions.
 	 */
-	var $_count_string = "SELECT COUNT(*) AS ";
-	var $_random_keyword = ' ASC'; // not currently supported
+	protected $_count_string = 'SELECT COUNT(*) AS ';
+	protected $_random_keyword = ' NEWID()';
 
 	/**
 	 * Non-persistent database connection
 	 *
-	 * @access	private called by the base class
 	 * @return	resource
 	 */
-	function db_connect($pooling = false)
+	public function db_connect($pooling = TRUE)
 	{
 		// Check for a UTF-8 charset being passed as CI's default 'utf8'.
 		$character_set = (0 === strcasecmp('utf8', $this->char_set)) ? 'UTF-8' : $this->char_set;
 
 		$connection = array(
-			'UID'				=> empty($this->username) ? '' : $this->username,
-			'PWD'				=> empty($this->password) ? '' : $this->password,
-			'Database'			=> $this->database,
-			'ConnectionPooling' => $pooling ? 1 : 0,
+			'UID'			=> empty($this->username) ? '' : $this->username,
+			'PWD'			=> empty($this->password) ? '' : $this->password,
+			'Database'		=> $this->database,
+			'ConnectionPooling'	=> $pooling ? 1 : 0,
 			'CharacterSet'		=> $character_set,
-			'ReturnDatesAsStrings' => 1
+			'ReturnDatesAsStrings'	=> 1
 		);
-		
-		// If the username and password are both empty, assume this is a 
+
+		// If the username and password are both empty, assume this is a
 		// 'Windows Authentication Mode' connection.
-		if(empty($connection['UID']) && empty($connection['PWD'])) {
+		if (empty($connection['UID']) && empty($connection['PWD']))
+		{
 			unset($connection['UID'], $connection['PWD']);
 		}
 
@@ -93,10 +91,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Persistent database connection
 	 *
-	 * @access	private called by the base class
 	 * @return	resource
 	 */
-	function db_pconnect()
+	public function db_pconnect()
 	{
 		return $this->db_connect(TRUE);
 	}
@@ -109,12 +106,11 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * Keep / reestablish the db connection if no queries have been
 	 * sent for a length of time exceeding the server's idle timeout
 	 *
-	 * @access	public
 	 * @return	void
 	 */
-	function reconnect()
+	public function reconnect()
 	{
-		// not implemented in MSSQL
+		// Not supported in MSSQL
 	}
 
 	// --------------------------------------------------------------------
@@ -122,10 +118,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Select the database
 	 *
-	 * @access	private called by the base class
 	 * @return	resource
 	 */
-	function db_select()
+	public function db_select()
 	{
 		return $this->_execute('USE ' . $this->database);
 	}
@@ -135,14 +130,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Set client character set
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	string
-	 * @return	resource
+	 * @return	bool
 	 */
-	function db_set_charset($charset, $collation)
+	public function db_set_charset($charset, $collation)
 	{
-		// @todo - add support if needed
+		// This is done upon connect
 		return TRUE;
 	}
 
@@ -151,17 +145,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Execute the query
 	 *
-	 * @access	private called by the base class
 	 * @param	string	an SQL query
 	 * @return	resource
 	 */
-	function _execute($sql)
+	protected function _execute($sql)
 	{
-		$sql = $this->_prep_query($sql);
-		return sqlsrv_query($this->conn_id, $sql, null, array(
-			'Scrollable'				=> SQLSRV_CURSOR_STATIC,
-			'SendStreamParamsAtExec'	=> true
-		));
+		return sqlsrv_query($this->conn_id, $this->_prep_query($sql), NULL,
+					array('Scrollable' => SQLSRV_CURSOR_STATIC, 'SendStreamParamsAtExec' => TRUE));
 	}
 
 	// --------------------------------------------------------------------
@@ -171,11 +161,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * If needed, each database adapter can prep the query string
 	 *
-	 * @access	private called by execute()
 	 * @param	string	an SQL query
 	 * @return	string
 	 */
-	function _prep_query($sql)
+	protected function _prep_query($sql)
 	{
 		return $sql;
 	}
@@ -185,18 +174,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Begin Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
-	function trans_begin($test_mode = FALSE)
+	public function trans_begin($test_mode = FALSE)
 	{
-		if ( ! $this->trans_enabled)
-		{
-			return TRUE;
-		}
-
 		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ($this->_trans_depth > 0)
+		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
 		{
 			return TRUE;
 		}
@@ -204,7 +187,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		// Reset the transaction failure flag.
 		// If the $test_mode flag is set to TRUE transactions will be rolled back
 		// even if the queries produce a successful result.
-		$this->_trans_failure = ($test_mode === TRUE) ? TRUE : FALSE;
+		$this->_trans_failure = ($test_mode === TRUE);
 
 		return sqlsrv_begin_transaction($this->conn_id);
 	}
@@ -214,18 +197,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Commit Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
-	function trans_commit()
+	public function trans_commit()
 	{
-		if ( ! $this->trans_enabled)
-		{
-			return TRUE;
-		}
-
 		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ($this->_trans_depth > 0)
+		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
 		{
 			return TRUE;
 		}
@@ -238,18 +215,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Rollback Transaction
 	 *
-	 * @access	public
 	 * @return	bool
 	 */
-	function trans_rollback()
+	public function trans_rollback()
 	{
-		if ( ! $this->trans_enabled)
-		{
-			return TRUE;
-		}
-
 		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ($this->_trans_depth > 0)
+		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
 		{
 			return TRUE;
 		}
@@ -262,12 +233,11 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Escape String
 	 *
-	 * @access	public
 	 * @param	string
 	 * @param	bool	whether or not the string will be used in a LIKE condition
 	 * @return	string
 	 */
-	function escape_str($str, $like = FALSE)
+	public function escape_str($str, $like = FALSE)
 	{
 		// Escape single quotes
 		return str_replace("'", "''", $str);
@@ -278,10 +248,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Affected Rows
 	 *
-	 * @access	public
-	 * @return	integer
+	 * @return	int
 	 */
-	function affected_rows()
+	public function affected_rows()
 	{
 		return @sqlrv_rows_affected($this->conn_id);
 	}
@@ -293,30 +262,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	*
 	* Returns the last id created in the Identity column.
 	*
-	* @access public
-	* @return integer
-	*/
-	function insert_id()
-	{
-		return $this->query('select @@IDENTITY as insert_id')->row('insert_id');
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
-	* Parse major version
-	*
-	* Grabs the major version number from the
-	* database server version string passed in.
-	*
-	* @access private
-	* @param string $version
-	* @return int16 major version number
+	* @return	int
 	*/
-	function _parse_major_version($version)
+	public function insert_id()
 	{
-		preg_match('/([0-9]+)\.([0-9]+)\.([0-9]+)/', $version, $ver_info);
-		return $ver_info[1]; // return the major version b/c that's all we're interested in.
+		$query = $this->query('SELECT @@IDENTITY AS insert_id');
+		$query = $query->row();
+		return $query->insert_id;
 	}
 
 	// --------------------------------------------------------------------
@@ -324,13 +276,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	* Version number query string
 	*
-	* @access public
-	* @return string
+	* @return	string
 	*/
-	function _version()
+	protected function _version()
 	{
 		$info = sqlsrv_server_info($this->conn_id);
-		return sprintf("select '%s' as ver", $info['SQLServerVersion']);
+		return $info['SQLServerVersion'];
 	}
 
 	// --------------------------------------------------------------------
@@ -341,23 +292,25 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * Generates a platform-specific query string that counts all records in
 	 * the specified database
 	 *
-	 * @access	public
 	 * @param	string
-	 * @return	string
+	 * @return	int
 	 */
-	function count_all($table = '')
+	public function count_all($table = '')
 	{
 		if ($table == '')
-			return '0';
-	
-		$query = $this->query("SELECT COUNT(*) AS numrows FROM " . $this->dbprefix . $table);
-		
-		if ($query->num_rows() == 0)
-			return '0';
-
-		$row = $query->row();
+		{
+			return 0;
+		}
+
+		$query = $this->query('SELECT COUNT(*) AS numrows FROM '.$this->dbprefix.$table);
+		if ($query->num_rows() === 0)
+		{
+			return 0;
+		}
+
+		$query = $query->row();
 		$this->_reset_select();
-		return $row->numrows;
+		return (int) $query->numrows;
 	}
 
 	// --------------------------------------------------------------------
@@ -367,11 +320,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
 	 *
-	 * @access	private
-	 * @param	boolean
+	 * @param	bool
 	 * @return	string
 	 */
-	function _list_tables($prefix_limit = FALSE)
+	protected function _list_tables($prefix_limit = FALSE)
 	{
 		return "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
 	}
@@ -383,11 +335,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the column names can be fetched
 	 *
-	 * @access	private
 	 * @param	string	the table name
 	 * @return	string
 	 */
-	function _list_columns($table = '')
+	protected function _list_columns($table = '')
 	{
 		return "SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$this->_escape_table($table)."'";
 	}
@@ -399,13 +350,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query so that the column data can be retrieved
 	 *
-	 * @access	public
 	 * @param	string	the table name
 	 * @return	object
 	 */
-	function _field_data($table)
+	protected function _field_data($table)
 	{
-		return "SELECT TOP 1 * FROM " . $this->_escape_table($table);	
+		return 'SELECT TOP 1 * FROM '.$this->_escape_table($table);
 	}
 
 	// --------------------------------------------------------------------
@@ -413,13 +363,18 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * The error message string
 	 *
-	 * @access	private
 	 * @return	string
 	 */
-	function _error_message()
+	protected function _error_message()
 	{
-		$error = array_shift(sqlsrv_errors());
-		return !empty($error['message']) ? $error['message'] : null;
+		$error = sqlsrv_errors();
+		if ( ! is_array($error))
+		{
+			return '';
+		}
+
+		$error = array_shift($error);
+		return isset($error['message']) ? $error['message'] : '';
 	}
 
 	// --------------------------------------------------------------------
@@ -427,13 +382,29 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * The error message number
 	 *
-	 * @access	private
-	 * @return	integer
+	 * @return	string
 	 */
-	function _error_number()
+	protected function _error_number()
 	{
-		$error = array_shift(sqlsrv_errors());
-		return isset($error['SQLSTATE']) ? $error['SQLSTATE'] : null;
+		$error = sqlsrv_errors();
+		if ( ! is_array($error))
+		{
+			return '';
+		}
+		elseif (isset($error['SQLSTATE'], $error['code']))
+		{
+			return $error['SQLSTATE'].'/'.$error['code'];
+		}
+		elseif (isset($error['SQLSTATE']))
+		{
+			return $error['SQLSTATE'];
+		}
+		elseif (isset($error['code']))
+		{
+			return $error['code'];
+		}
+
+		return '';
 	}
 
 	// --------------------------------------------------------------------
@@ -444,26 +415,23 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * This function adds backticks if the table name has a period
 	 * in it. Some DBs will get cranky unless periods are escaped
 	 *
-	 * @access	private
 	 * @param	string	the table name
 	 * @return	string
 	 */
-	function _escape_table($table)
+	protected function _escape_table($table)
 	{
 		return $table;
-	}	
-
+	}
 
 	/**
 	 * Escape the SQL Identifiers
 	 *
 	 * This function escapes column and table names
 	 *
-	 * @access	private
 	 * @param	string
 	 * @return	string
 	 */
-	function _escape_identifiers($item)
+	public function _escape_identifiers($item)
 	{
 		return $item;
 	}
@@ -476,11 +444,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * This function implicitly groups FROM tables so there is no confusion
 	 * about operator precedence in harmony with SQL standards
 	 *
-	 * @access	public
-	 * @param	type
-	 * @return	type
+	 * @param	array
+	 * @return	string
 	 */
-	function _from_tables($tables)
+	protected function _from_tables($tables)
 	{
 		if ( ! is_array($tables))
 		{
@@ -497,15 +464,14 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific insert string from the supplied data
 	 *
-	 * @access	public
 	 * @param	string	the table name
 	 * @param	array	the insert keys
 	 * @param	array	the insert values
 	 * @return	string
 	 */
-	function _insert($table, $keys, $values)
-	{	
-		return "INSERT INTO ".$this->_escape_table($table)." (".implode(', ', $keys).") VALUES (".implode(', ', $values).")";
+	protected function _insert($table, $keys, $values)
+	{
+		return 'INSERT INTO '.$this->_escape_table($table).' ('.implode(', ', $keys).') VALUES ('.implode(', ', $values).')';
 	}
 
 	// --------------------------------------------------------------------
@@ -515,7 +481,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific update string from the supplied data
 	 *
-	 * @access	public
 	 * @param	string	the table name
 	 * @param	array	the update data
 	 * @param	array	the where clause
@@ -523,16 +488,16 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * @param	array	the limit clause
 	 * @return	string
 	 */
-	function _update($table, $values, $where)
+	protected function _update($table, $values, $where)
 	{
-		foreach($values as $key => $val)
+		foreach ($values as $key => $val)
 		{
-			$valstr[] = $key." = ".$val;
+			$valstr[] = $key.' = '.$val;
 		}
-	
-		return "UPDATE ".$this->_escape_table($table)." SET ".implode(', ', $valstr)." WHERE ".implode(" ", $where);
+
+		return 'UPDATE '.$this->_escape_table($table).' SET '.implode(', ', $valstr).' WHERE '.implode(' ', $where);
 	}
-	
+
 	// --------------------------------------------------------------------
 
 	/**
@@ -542,13 +507,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * If the database does not support the truncate() command
 	 * This function maps to "DELETE FROM table"
 	 *
-	 * @access	public
 	 * @param	string	the table name
 	 * @return	string
 	 */
-	function _truncate($table)
+	protected function _truncate($table)
 	{
-		return "TRUNCATE ".$table;
+		return 'TRUNCATE '.$table;
 	}
 
 	// --------------------------------------------------------------------
@@ -558,15 +522,14 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific delete string from the supplied data
 	 *
-	 * @access	public
 	 * @param	string	the table name
 	 * @param	array	the where clause
 	 * @param	string	the limit clause
 	 * @return	string
 	 */
-	function _delete($table, $where)
+	protected function _delete($table, $where)
 	{
-		return "DELETE FROM ".$this->_escape_table($table)." WHERE ".implode(" ", $where);
+		return 'DELETE FROM '.$this->_escape_table($table).' WHERE '.implode(' ', $where);
 	}
 
 	// --------------------------------------------------------------------
@@ -576,17 +539,14 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific LIMIT clause
 	 *
-	 * @access	public
 	 * @param	string	the sql query string
 	 * @param	integer	the number of rows to limit the query to
 	 * @param	integer	the offset value
 	 * @return	string
 	 */
-	function _limit($sql, $limit, $offset)
+	protected function _limit($sql, $limit, $offset)
 	{
-		$i = $limit + $offset;
-	
-		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$i.' ', $sql);		
+		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
 	}
 
 	// --------------------------------------------------------------------
@@ -594,18 +554,15 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Close DB Connection
 	 *
-	 * @access	public
 	 * @param	resource
 	 * @return	void
 	 */
-	function _close($conn_id)
+	protected function _close($conn_id)
 	{
 		@sqlsrv_close($conn_id);
 	}
 
 }
 
-
-
-/* End of file mssql_driver.php */
-/* Location: ./system/database/drivers/mssql/mssql_driver.php */
\ No newline at end of file
+/* End of file sqlsrv_driver.php */
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 2a7766927..1367ddc77 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -1,13 +1,13 @@
-<?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
  *
  * 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:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * SQLSRV Forge Class
  *
@@ -39,13 +37,12 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	/**
 	 * Create database
 	 *
-	 * @access	private
 	 * @param	string	the database name
-	 * @return	bool
+	 * @return	string
 	 */
-	function _create_database($name)
+	public function _create_database($name)
 	{
-		return "CREATE DATABASE ".$name;
+		return 'CREATE DATABASE '.$name;
 	}
 
 	// --------------------------------------------------------------------
@@ -53,13 +50,12 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	/**
 	 * Drop database
 	 *
-	 * @access	private
 	 * @param	string	the database name
-	 * @return	bool
+	 * @return	string
 	 */
-	function _drop_database($name)
+	public function _drop_database($name)
 	{
-		return "DROP DATABASE ".$name;
+		return 'DROP DATABASE '.$name;
 	}
 
 	// --------------------------------------------------------------------
@@ -67,12 +63,12 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	/**
 	 * Drop Table
 	 *
-	 * @access	private
-	 * @return	bool
+	 * @param	string	the table name
+	 * @return	string
 	 */
-	function _drop_table($table)
+	public function _drop_table($table)
 	{
-		return "DROP TABLE ".$this->db->_escape_identifiers($table);
+		return 'DROP TABLE '.$this->db->_escape_identifiers($table);
 	}
 
 	// --------------------------------------------------------------------
@@ -80,15 +76,14 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	/**
 	 * Create Table
 	 *
-	 * @access	private
 	 * @param	string	the table name
 	 * @param	array	the fields
 	 * @param	mixed	primary key(s)
 	 * @param	mixed	key(s)
-	 * @param	boolean	should 'IF NOT EXISTS' be added to the SQL
-	 * @return	bool
+	 * @param	bool	should 'IF NOT EXISTS' be added to the SQL
+	 * @return	string
 	 */
-	function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
+	public function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
 		$sql = 'CREATE TABLE ';
 
@@ -97,54 +92,29 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			$sql .= 'IF NOT EXISTS ';
 		}
 
-		$sql .= $this->db->_escape_identifiers($table)." (";
+		$sql .= $this->db->_escape_identifiers($table).' (';
 		$current_field_count = 0;
 
-		foreach ($fields as $field=>$attributes)
+		foreach ($fields as $field => $attributes)
 		{
 			// Numeric field names aren't allowed in databases, so if the key is
 			// numeric, we know it was assigned by PHP and the developer manually
 			// entered the field information, so we'll simply add it to the list
 			if (is_numeric($field))
 			{
-				$sql .= "\n\t$attributes";
+				$sql .= "\n\t".$attributes;
 			}
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
 
-				$sql .= "\n\t".$this->db->_protect_identifiers($field);
-
-				$sql .=  ' '.$attributes['TYPE'];
-
-				if (array_key_exists('CONSTRAINT', $attributes))
-				{
-					$sql .= '('.$attributes['CONSTRAINT'].')';
-				}
-
-				if (array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE)
-				{
-					$sql .= ' UNSIGNED';
-				}
-
-				if (array_key_exists('DEFAULT', $attributes))
-				{
-					$sql .= ' DEFAULT \''.$attributes['DEFAULT'].'\'';
-				}
-
-				if (array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE)
-				{
-					$sql .= ' NULL';
-				}
-				else
-				{
-					$sql .= ' NOT NULL';
-				}
-
-				if (array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE)
-				{
-					$sql .= ' AUTO_INCREMENT';
-				}
+				$sql .= "\n\t".$this->db->protect_identifiers($field)
+					.' '.$attributes['TYPE']
+					.(array_key_exists('CONSTRAINT', $attributes) ? '('.$attributes['CONSTRAINT'].')' : '')
+					.((array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
+					.(array_key_exists('DEFAULT', $attributes) ? ' DEFAULT \''.$attributes['DEFAULT'].'\'' : '')
+					.((array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL')
+					.((array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '');
 			}
 
 			// don't add a comma on the end of the last field
@@ -156,8 +126,8 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 		if (count($primary_keys) > 0)
 		{
-			$primary_keys = $this->db->_protect_identifiers($primary_keys);
-			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
+			$primary_keys = $this->db->protect_identifiers($primary_keys);
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -166,20 +136,18 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			{
 				if (is_array($key))
 				{
-					$key = $this->db->_protect_identifiers($key);
+					$key = $this->db->protect_identifiers($key);
 				}
 				else
 				{
-					$key = array($this->db->_protect_identifiers($key));
+					$key = array($this->db->protect_identifiers($key));
 				}
 
-				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
 			}
 		}
 
-		$sql .= "\n)";
-
-		return $sql;
+		return $sql."\n)";
 	}
 
 	// --------------------------------------------------------------------
@@ -190,7 +158,6 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	 * Generates a platform-specific query so that a table can be altered
 	 * Called by add_column(), drop_column(), and column_alter(),
 	 *
-	 * @access	private
 	 * @param	string	the ALTER type (ADD, DROP, CHANGE)
 	 * @param	string	the column name
 	 * @param	string	the table name
@@ -200,9 +167,9 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	 * @param	string	the field after which we should add the new field
 	 * @return	object
 	 */
-	function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+	public function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
 	{
-		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table)." $alter_type ".$this->db->_protect_identifiers($column_name);
+		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table).' '.$alter_type.' '.$this->db->_protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
 		if ($alter_type == 'DROP')
@@ -210,29 +177,10 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			return $sql;
 		}
 
-		$sql .= " $column_definition";
-
-		if ($default_value != '')
-		{
-			$sql .= " DEFAULT \"$default_value\"";
-		}
-
-		if ($null === NULL)
-		{
-			$sql .= ' NULL';
-		}
-		else
-		{
-			$sql .= ' NOT NULL';
-		}
-
-		if ($after_field != '')
-		{
-			$sql .= ' AFTER ' . $this->db->_protect_identifiers($after_field);
-		}
-
-		return $sql;
-
+		return $sql.' '.$column_definition
+			.($default_value != '' ? ' DEFAULT "'.$default_value.'"' : '')
+			.($null === NULL ? ' NULL' : ' NOT NULL')
+			.($after_field != '' ? ' AFTER '.$this->db->protect_identifiers($after_field) : '');
 	}
 
 	// --------------------------------------------------------------------
@@ -242,19 +190,17 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	 *
 	 * Generates a platform-specific query so that a table can be renamed
 	 *
-	 * @access	private
 	 * @param	string	the old table name
 	 * @param	string	the new table name
 	 * @return	string
 	 */
-	function _rename_table($table_name, $new_table_name)
+	public function _rename_table($table_name, $new_table_name)
 	{
 		// I think this syntax will work, but can find little documentation on renaming tables in MSSQL
-		$sql = 'ALTER TABLE '.$this->db->_protect_identifiers($table_name)." RENAME TO ".$this->db->_protect_identifiers($new_table_name);
-		return $sql;
+		return 'ALTER TABLE '.$this->db->protect_identifiers($table_name).' RENAME TO '.$this->db->protect_identifiers($new_table_name);
 	}
 
 }
 
-/* End of file mssql_forge.php */
-/* Location: ./system/database/drivers/mssql/mssql_forge.php */
\ No newline at end of file
+/* End of file sqlsrv_forge.php */
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_forge.php */
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index 1ee19c2d1..c5f9093db 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -1,13 +1,13 @@
-<?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
  *
  * 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:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * SQLSRV Result Class
  *
@@ -41,10 +39,9 @@ class CI_DB_sqlsrv_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 @sqlsrv_num_rows($this->result_id);
 	}
@@ -54,10 +51,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	/**
 	 * Number of fields in the result set
 	 *
-	 * @access	public
-	 * @return	integer
+	 * @return	int
 	 */
-	function num_fields()
+	public function num_fields()
 	{
 		return @sqlsrv_num_fields($this->result_id);
 	}
@@ -69,17 +65,16 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 *
 	 * Generates an array of column names
 	 *
-	 * @access	public
 	 * @return	array
 	 */
-	function list_fields()
+	public function list_fields()
 	{
 		$field_names = array();
-		foreach(sqlsrv_field_metadata($this->result_id) as $offset => $field)
+		foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field)
 		{
 			$field_names[] = $field['Name'];
 		}
-		
+
 		return $field_names;
 	}
 
@@ -90,24 +85,23 @@ class CI_DB_sqlsrv_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()
 	{
 		$retval = array();
-		foreach(sqlsrv_field_metadata($this->result_id) as $offset => $field)
+		foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field)
 		{
-			$F 				= new stdClass();
-			$F->name 		= $field['Name'];
-			$F->type 		= $field['Type'];
+			$F 		= new stdClass();
+			$F->name 	= $field['Name'];
+			$F->type 	= $field['Type'];
 			$F->max_length	= $field['Size'];
 			$F->primary_key = 0;
-			$F->default		= '';
-			
+			$F->default	= '';
+
 			$retval[] = $F;
 		}
-		
+
 		return $retval;
 	}
 
@@ -116,9 +110,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	/**
 	 * Free the result
 	 *
-	 * @return	null
+	 * @return	void
 	 */
-	function free_result()
+	public function free_result()
 	{
 		if (is_resource($this->result_id))
 		{
@@ -136,10 +130,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 * this internally before fetching results to make sure the
 	 * result set starts at zero
 	 *
-	 * @access	private
-	 * @return	array
+	 * @return	void
 	 */
-	function _data_seek($n = 0)
+	protected function _data_seek($n = 0)
 	{
 		// Not implemented
 	}
@@ -151,10 +144,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an array
 	 *
-	 * @access	private
 	 * @return	array
 	 */
-	function _fetch_assoc()
+	protected function _fetch_assoc()
 	{
 		return sqlsrv_fetch_array($this->result_id, SQLSRV_FETCH_ASSOC);
 	}
@@ -166,16 +158,14 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
-	 * @access	private
 	 * @return	object
 	 */
-	function _fetch_object()
+	protected function _fetch_object()
 	{
 		return sqlsrv_fetch_object($this->result_id);
 	}
 
 }
 
-
-/* End of file mssql_result.php */
-/* Location: ./system/database/drivers/mssql/mssql_result.php */
\ No newline at end of file
+/* End of file sqlsrv_result.php */
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_result.php */
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index e96df96f9..d2a421208 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -1,13 +1,13 @@
-<?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
  *
  * 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:
@@ -25,8 +25,6 @@
  * @filesource
  */
 
-// ------------------------------------------------------------------------
-
 /**
  * SQLSRV Utility Class
  *
@@ -39,12 +37,11 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 	/**
 	 * List databases
 	 *
-	 * @access	private
-	 * @return	bool
+	 * @return	string
 	 */
-	function _list_databases()
+	public function _list_databases()
 	{
-		return "EXEC sp_helpdb"; // Can also be: EXEC sp_databases
+		return 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases
 	}
 
 	// --------------------------------------------------------------------
@@ -54,13 +51,12 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 	 *
 	 * Generates a platform-specific query so that a table can be optimized
 	 *
-	 * @access	private
 	 * @param	string	the table name
-	 * @return	object
+	 * @return	string
 	 */
-	function _optimize_table($table)
+	public function _optimize_table($table)
 	{
-		return FALSE; // Is this supported in MS SQL?
+		return 'ALTER INDEX all ON '.$this->db->protect_identifiers($table).' REORGANIZE';
 	}
 
 	// --------------------------------------------------------------------
@@ -70,13 +66,13 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 	 *
 	 * Generates a platform-specific query so that a table can be repaired
 	 *
-	 * @access	private
 	 * @param	string	the table name
-	 * @return	object
+	 * @return	bool
 	 */
-	function _repair_table($table)
+	public function _repair_table($table)
 	{
-		return FALSE; // Is this supported in MS SQL?
+		// Not supported in MSSQL
+		return FALSE;
 	}
 
 	// --------------------------------------------------------------------
@@ -84,11 +80,10 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 	/**
 	 * MSSQL Export
 	 *
-	 * @access	private
 	 * @param	array	Preferences
-	 * @return	mixed
+	 * @return	bool
 	 */
-	function _backup($params = array())
+	public function _backup($params = array())
 	{
 		// Currently unsupported
 		return $this->db->display_error('db_unsuported_feature');
@@ -96,5 +91,5 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 
 }
 
-/* End of file mssql_utility.php */
-/* Location: ./system/database/drivers/mssql/mssql_utility.php */
\ No newline at end of file
+/* End of file sqlsrv_utility.php */
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_utility.php */
-- 
cgit v1.2.3-24-g4f1b


From 684ee3a330c90744b249b48212d85dfe4d3b1caf Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 26 Jan 2012 14:17:39 +0200
Subject: Replace array_key_exists() with isset()

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 1367ddc77..c0271f671 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -110,11 +110,11 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 				$sql .= "\n\t".$this->db->protect_identifiers($field)
 					.' '.$attributes['TYPE']
-					.(array_key_exists('CONSTRAINT', $attributes) ? '('.$attributes['CONSTRAINT'].')' : '')
-					.((array_key_exists('UNSIGNED', $attributes) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
-					.(array_key_exists('DEFAULT', $attributes) ? ' DEFAULT \''.$attributes['DEFAULT'].'\'' : '')
-					.((array_key_exists('NULL', $attributes) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL')
-					.((array_key_exists('AUTO_INCREMENT', $attributes) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '');
+					.(isset($attributes['CONSTRAINT']) ? '('.$attributes['CONSTRAINT'].')' : '')
+					.((isset($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
+					.(isset($attributes['DEFAULT']) ? ' DEFAULT \''.$attributes['DEFAULT'].'\'' : '')
+					.((isset($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL')
+					.((isset($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '');
 			}
 
 			// don't add a comma on the end of the last field
-- 
cgit v1.2.3-24-g4f1b


From 993f932cb27f68ac4a3272502a823af0835b291c Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 26 Jan 2012 14:49:23 +0200
Subject: Another minor improvement and fix a possible false-positive

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 system/database/drivers/sqlsrv/sqlsrv_forge.php  | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index cdd178261..0c24ef38f 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -303,7 +303,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		}
 
 		$query = $this->query('SELECT COUNT(*) AS numrows FROM '.$this->dbprefix.$table);
-		if ($query->num_rows() === 0)
+		if ($query->num_rows() == 0)
 		{
 			return 0;
 		}
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index c0271f671..3beb86b4e 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -110,11 +110,11 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 				$sql .= "\n\t".$this->db->protect_identifiers($field)
 					.' '.$attributes['TYPE']
-					.(isset($attributes['CONSTRAINT']) ? '('.$attributes['CONSTRAINT'].')' : '')
-					.((isset($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
+					.( ! empty($attributes['CONSTRAINT']) ? '('.$attributes['CONSTRAINT'].')' : '')
+					.(( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE) ? ' UNSIGNED' : '')
 					.(isset($attributes['DEFAULT']) ? ' DEFAULT \''.$attributes['DEFAULT'].'\'' : '')
-					.((isset($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL')
-					.((isset($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '');
+					.(( ! empty($attributes['NULL']) && $attributes['NULL'] === TRUE) ? ' NULL' : ' NOT NULL')
+					.(( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE) ? ' AUTO_INCREMENT' : '');
 			}
 
 			// don't add a comma on the end of the last field
-- 
cgit v1.2.3-24-g4f1b


From 7efad20597ef7e06f8cf837a9f40918d2d3f2727 Mon Sep 17 00:00:00 2001
From: Jamie Rumbelow <jamie@jamierumbelow.net>
Date: Sun, 19 Feb 2012 12:37:00 +0000
Subject: Renaming Active Record to Query Builder across the system

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 6fd52ef70..a21009ad3 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -31,7 +31,7 @@
  * SQLSRV Database Adapter Class
  *
  * Note: _DB is an extender class that the app controller
- * creates dynamically based on whether the active record
+ * creates dynamically based on whether the query builder
  * class is being used or not.
  *
  * @package		CodeIgniter
-- 
cgit v1.2.3-24-g4f1b


From 4b47e980696fdcd9e3cf36e05e075c401d20ffbd Mon Sep 17 00:00:00 2001
From: st2 <st2@webxway.com>
Date: Tue, 24 Apr 2012 17:45:44 +0800
Subject: Update system/database/drivers/sqlsrv/sqlsrv_driver.php

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 951567033..c318f3060 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -440,7 +440,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			$where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
 		}
 
-		return 'UPDATE '.$table.' SET '.implode(', ', $valstr).' WHERE '.$where;
+		return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 79922c0d963de9728315db02deaf4d2516c94d5b Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Wed, 23 May 2012 12:27:17 +0300
Subject: Removed the parameter use in database drivers' _close() and added a
 default _close() method in CI_DB_driver + some changelog fixes

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8cc500f55..3e9fa7b1a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -510,15 +510,14 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Close DB Connection
 	 *
-	 * @param	resource
 	 * @return	void
 	 */
-	protected function _close($conn_id)
+	protected function _close()
 	{
-		@sqlsrv_close($conn_id);
+		@sqlsrv_close($this->conn_id);
 	}
 
 }
 
 /* End of file sqlsrv_driver.php */
-/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */
+/* Location: ./system/database/drivers/sqlsrv/sqlsrv_driver.php */
\ No newline at end of file
-- 
cgit v1.2.3-24-g4f1b


From 846acc7926ccb991d39135353d5047e7de5bcb60 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 24 May 2012 23:27:46 +0300
Subject: Fix issue #319

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 3e9fa7b1a..5a24f5532 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -132,11 +132,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _execute($sql)
 	{
-		return sqlsrv_query($this->conn_id,
-					$sql,
-					NULL,
-					array('Scrollable'=> SQLSRV_CURSOR_STATIC, 'SendStreamParamsAtExec' => TRUE)
-			);
+		return (is_write_type($sql) && stripos($sql, 'INSERT') === FALSE)
+			? sqlsrv_query($this->conn_id, $sql)
+			: sqlsrv_query($this->conn_id, $sql, NULL, array('Scrollable' => SQLSRV_CURSOR_STATIC));
 	}
 
 	// --------------------------------------------------------------------
@@ -237,7 +235,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	public function affected_rows()
 	{
-		return @sqlrv_rows_affected($this->conn_id);
+		return sqlrv_rows_affected($this->result_id);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 16bb9bd93698335fc1692adcfbd20d8e4fda6268 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Sat, 26 May 2012 18:21:14 +0300
Subject: Move count_all() from the drivers to CI_DB_driver

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 29 ------------------------
 1 file changed, 29 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 5a24f5532..961066da7 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -278,35 +278,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 
 	// --------------------------------------------------------------------
 
-	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	int
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query("SELECT COUNT(*) AS numrows FROM " . $this->dbprefix . $table);
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
 	/**
 	 * List table query
 	 *
-- 
cgit v1.2.3-24-g4f1b


From 650f2a2bc15dd575f50446dcc1315c131652ca49 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Sat, 26 May 2012 18:56:29 +0300
Subject: Fix issue #862

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 39 ++++++++-----------------
 1 file changed, 12 insertions(+), 27 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index e9143b269..c817c2c5d 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -48,16 +48,13 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	 */
 	protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
-		$sql = 'CREATE TABLE ';
+		$sql = ($if_not_exists === TRUE)
+			? "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'".$table."') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\n"
+			: '';
 
-		if ($if_not_exists === TRUE)
-		{
-			$sql .= 'IF NOT EXISTS ';
-		}
+		$sql .= 'CREATE TABLE '.$this->db->escape_identifiers($table).' (';
 
-		$sql .= $this->db->escape_identifiers($table).' (';
 		$current_field_count = 0;
-
 		foreach ($fields as $field => $attributes)
 		{
 			// Numeric field names aren't allowed in databases, so if the key is
@@ -65,15 +62,13 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			// entered the field information, so we'll simply add it to the list
 			if (is_numeric($field))
 			{
-				$sql .= "\n\t$attributes";
+				$sql .= "\n\t".$attributes;
 			}
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
 
-				$sql .= "\n\t".$this->db->protect_identifiers($field);
-
-				$sql .=  ' '.$attributes['TYPE'];
+				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
 
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
@@ -115,7 +110,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 		if (count($primary_keys) > 0)
 		{
 			$primary_keys = $this->db->protect_identifiers($primary_keys);
-			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -131,13 +126,11 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 					$key = array($this->db->protect_identifiers($key));
 				}
 
-				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
 			}
 		}
 
-		$sql .= "\n)";
-
-		return $sql;
+		return $sql."\n)";
 	}
 
 	// --------------------------------------------------------------------
@@ -167,21 +160,14 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			return $sql;
 		}
 
-		$sql .= " $column_definition";
+		$sql .= ' '.$column_definition;
 
 		if ($default_value != '')
 		{
-			$sql .= " DEFAULT \"$default_value\"";
+			$sql .= " DEFAULT '".$default_value."'";
 		}
 
-		if ($null === NULL)
-		{
-			$sql .= ' NULL';
-		}
-		else
-		{
-			$sql .= ' NOT NULL';
-		}
+		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
 		if ($after_field != '')
 		{
@@ -189,7 +175,6 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 		}
 
 		return $sql;
-
 	}
 
 }
-- 
cgit v1.2.3-24-g4f1b


From 48a2baf0e288accd206f5da5031d29076e130792 Mon Sep 17 00:00:00 2001
From: Alex Bilbie <alex@alexbilbie.com>
Date: Sat, 2 Jun 2012 11:09:54 +0100
Subject: Replaced `==` with `===` and `!=` with `!==` in /system/database

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index c817c2c5d..1529b2a21 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -155,21 +155,21 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 		$sql = 'ALTER TABLE '.$this->db->protect_identifiers($table).' '.$alter_type.' '.$this->db->protect_identifiers($column_name);
 
 		// DROP has everything it needs now.
-		if ($alter_type == 'DROP')
+		if ($alter_type === 'DROP')
 		{
 			return $sql;
 		}
 
 		$sql .= ' '.$column_definition;
 
-		if ($default_value != '')
+		if ($default_value !== '')
 		{
 			$sql .= " DEFAULT '".$default_value."'";
 		}
 
 		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
-		if ($after_field != '')
+		if ($after_field !== '')
 		{
 			return $sql.' AFTER '.$this->db->protect_identifiers($after_field);
 		}
-- 
cgit v1.2.3-24-g4f1b


From 1f26edc61f314a74cd93fcdf688b3780734e0e96 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 7 Jun 2012 16:13:54 +0300
Subject: Added a work-around for MSSQL/SQLSRV create_table() with INT column
 types (column lengths are not supported)

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 1 +
 1 file changed, 1 insertion(+)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 1529b2a21..bd107476e 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -67,6 +67,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
+				$attributes['TYPE'] = preg_replace('/(INT)\(\d+\)/i', '$1', $attributes['TYPE']);
 
 				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
 
-- 
cgit v1.2.3-24-g4f1b


From af4d55da04b8d8750b59e04e46463d525237b74b Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 7 Jun 2012 16:22:35 +0300
Subject: Fix issue #861 (and previous commit, for that matter)

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index bd107476e..d8b5193fa 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -67,11 +67,10 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
-				$attributes['TYPE'] = preg_replace('/(INT)\(\d+\)/i', '$1', $attributes['TYPE']);
 
 				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
 
-				if (array_key_exists('CONSTRAINT', $attributes))
+				if (stripos($attributes['TYPE'], 'INT') === FALSE && ! empty($attributes['CONSTRAINT']))
 				{
 					$sql .= '('.$attributes['CONSTRAINT'].')';
 				}
-- 
cgit v1.2.3-24-g4f1b


From caa04f15096590261093dff2a8b59f266a1dcaf5 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 01:39:20 +0300
Subject: Revert back some escape_identifiers() to proect_identifiers() as the
 first one can't handle arrays

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index e6f7e1ac1..559746e87 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -103,7 +103,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -111,7 +111,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->escape_identifiers($key)
+					? $this->db->protect_identifiers($key)
 					: array($this->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
-- 
cgit v1.2.3-24-g4f1b


From c78e56a7df140ee777ffc67687877f3e70c77e28 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 02:12:07 +0300
Subject: Add a default _from_tables() method to CI_DB_query_builder and remove
 it from most of the drivers

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index de319b421..74e11c3af 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -357,12 +357,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _from_tables($tables)
 	{
-		if ( ! is_array($tables))
-		{
-			$tables = array($tables);
-		}
-
-		return implode(', ', $tables);
+		return is_array($tables) ? implode(', ', $tables) : $tables;
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 082ee2b054b0d61ac02fea3deb704290e8d6021a Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 15:26:34 +0300
Subject: Added MSSQL/SQLSRV field escaping support with QUOTE_IDENTIFIER
 detection (issue #706)

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 74e11c3af..d2b73aee4 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -43,7 +43,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	public $dbdriver = 'sqlsrv';
 
 	// The character used for escaping
-	protected $_escape_char = '';
+	protected $_escape_char = '"';
 
 	// clause and character used for LIKE escape sequences
 	protected $_like_escape_str = " ESCAPE '%s' ";
@@ -57,6 +57,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	protected $_count_string = 'SELECT COUNT(*) AS ';
 	protected $_random_keyword = ' NEWID()';
 
+	// SQLSRV-specific properties
+	protected $_quoted_identifier = TRUE;
+
 	/**
 	 * Non-persistent database connection
 	 *
@@ -83,7 +86,15 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			unset($connection['UID'], $connection['PWD']);
 		}
 
-		return sqlsrv_connect($this->hostname, $connection);
+		$conn_id = sqlsrv_connect($this->hostname, $connection);
+
+		// Determine how identifiers are escaped
+		$query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
+		$query = $query->row_array();
+		$this->_quoted_identifier = empty($query) ? FALSE : (bool) $query->qi;
+		$this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
+
+		return $conn_id;
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 9637b40ca9e9ac1cdce2b895d3db09848a6eef76 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 15:39:24 +0300
Subject: escape_identifiers() to accept arrays as well

---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 559746e87..e6f7e1ac1 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -103,7 +103,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 		if (count($primary_keys) > 0)
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->protect_identifiers($primary_keys)).')';
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -111,7 +111,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			foreach ($keys as $key)
 			{
 				$key = is_array($key)
-					? $this->db->protect_identifiers($key)
+					? $this->db->escape_identifiers($key)
 					: array($this->escape_identifiers($key));
 
 				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
-- 
cgit v1.2.3-24-g4f1b


From d25c589dc3bbfc83fb59bbeb1a3046b99bf694f8 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 16:23:01 +0300
Subject: Add OFFSET support for SQL Server 2012

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index d2b73aee4..e3e97f14b 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -462,6 +462,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
+		// As of SQL Server 2012 (11.0.*) OFFSET is supported
+		if ($offset != 0 && version_compare($this->version(), '11', '>='))
+		{
+			return $sql .= ' OFFSET '. (int) $offset .' ROW FETCH NEXT '. (int) $limit .' ROW ONLY';
+		}
+
 		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
 	}
 
-- 
cgit v1.2.3-24-g4f1b


From ad5604e8a8fff6fb36179e9e165b9e5a717dc508 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 8 Jun 2012 16:35:40 +0300
Subject: Update OFFSET implementation for SQL Server 2012

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index e3e97f14b..655a9e90b 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -463,12 +463,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	protected function _limit($sql, $limit, $offset)
 	{
 		// As of SQL Server 2012 (11.0.*) OFFSET is supported
-		if ($offset != 0 && version_compare($this->version(), '11', '>='))
-		{
-			return $sql .= ' OFFSET '. (int) $offset .' ROW FETCH NEXT '. (int) $limit .' ROW ONLY';
-		}
-
-		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
+		return version_compare($this->version(), '11', '>=')
+			? $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY'
+			: preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From bf94058d537efc78ed2df7009db8b3261ff44619 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Sun, 10 Jun 2012 07:05:05 +0300
Subject: Fix issue #1452

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php  | 2 +-
 system/database/drivers/sqlsrv/sqlsrv_forge.php   | 2 +-
 system/database/drivers/sqlsrv/sqlsrv_result.php  | 2 +-
 system/database/drivers/sqlsrv/sqlsrv_utility.php | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 655a9e90b..eebd6bff8 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -21,7 +21,7 @@
  * @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 1.0
+ * @since		Version 2.0.3
  * @filesource
  */
 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index e6f7e1ac1..ccdb36929 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -21,7 +21,7 @@
  * @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 1.0
+ * @since		Version 2.0.3
  * @filesource
  */
 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index f802383d2..f9d5a0d29 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -21,7 +21,7 @@
  * @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 1.0
+ * @since		Version 2.0.3
  * @filesource
  */
 
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 5a71b1628..d518cc15a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -21,7 +21,7 @@
  * @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 1.0
+ * @since		Version 2.0.3
  * @filesource
  */
 
-- 
cgit v1.2.3-24-g4f1b


From 71379ca89226fe8af0314a8b70e5dc0f57367255 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 11 Jun 2012 16:12:43 +0300
Subject: Add OFFSET support for SQL Server 2005+ in MSSQL/SQLSRV

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 25 +++++++++++++++++++++---
 1 file changed, 22 insertions(+), 3 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index eebd6bff8..825c02452 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -463,9 +463,28 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	protected function _limit($sql, $limit, $offset)
 	{
 		// As of SQL Server 2012 (11.0.*) OFFSET is supported
-		return version_compare($this->version(), '11', '>=')
-			? $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY'
-			: preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.($limit + $offset).' ', $sql);
+		if (version_compare($this->version(), '11', '>='))
+		{
+			return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY';
+		}
+
+		$limit = $offset + $limit;
+
+		// An ORDER BY clause is required for ROW_NUMBER() to work
+		if ($offset && ! empty($this->qb_orderby))
+		{
+			$orderby = 'ORDER BY '.implode(', ', $this->qb_orderby);
+
+			// We have to strip the ORDER BY clause
+			$sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+
+			return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
+				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+				."\n) ".$this->escape_identifiers('CI_subquery')
+				."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit;
+		}
+
+		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 70c72c91c87a4e83b672f93410c6790d403f7b58 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 25 Jun 2012 00:04:51 +0300
Subject: Some fixes to the SQLSRV and MSSQL drivers

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 825c02452..4fdc4aae0 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -91,7 +91,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		// Determine how identifiers are escaped
 		$query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
 		$query = $query->row_array();
-		$this->_quoted_identifier = empty($query) ? FALSE : (bool) $query->qi;
+		$this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi'];
 		$this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
 
 		return $conn_id;
@@ -284,7 +284,17 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _list_tables($prefix_limit = FALSE)
 	{
-		return "SELECT name FROM sysobjects WHERE type = 'U' ORDER BY name";
+		$sql = 'SELECT '.$this->escape_identifiers('name')
+			.' FROM '.$this->escape_identifiers('sysobjects')
+			.' WHERE '.$this->escape_identifiers('type')." = 'U'";
+
+		if ($prefix_limit === TRUE && $this->dbprefix !== '')
+		{
+			$sql .= ' AND '.$this->escape_identifiers('name')." LIKE '".$this->escape_like_str($this->dbprefix)."%' "
+				.sprintf($this->_escape_like_str, $this->_escape_like_chr);
+		}
+
+		return $sql.' ORDER BY '.$this->escape_identifiers('name');
 	}
 
 	// --------------------------------------------------------------------
@@ -314,7 +324,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _field_data($table)
 	{
-		return 'SELECT TOP 1 * FROM '.$table;
+		return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From fac3761c6a01a12457c61cd4e3b17dba5ee26bf7 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 2 Jul 2012 14:56:20 +0300
Subject: Fix MSSQL & SQLSRV db_connect()

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 4fdc4aae0..12482dee0 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -86,7 +86,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			unset($connection['UID'], $connection['PWD']);
 		}
 
-		$conn_id = sqlsrv_connect($this->hostname, $connection);
+		$this->conn_id = sqlsrv_connect($this->hostname, $connection);
 
 		// Determine how identifiers are escaped
 		$query = $this->query('SELECT CASE WHEN (@@OPTIONS | 256) = @@OPTIONS THEN 1 ELSE 0 END AS qi');
@@ -94,7 +94,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		$this->_quoted_identifier = empty($query) ? FALSE : (bool) $query['qi'];
 		$this->_escape_char = ($this->_quoted_identifier) ? '"' : array('[', ']');
 
-		return $conn_id;
+		return $this->conn_id;
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From b2f60337393604fde1ff7cb180405ab111b01ab1 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 3 Jul 2012 14:45:00 +0300
Subject: Fix issue #1567

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 12482dee0..3a4fc0aff 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -143,7 +143,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _execute($sql)
 	{
-		return (is_write_type($sql) && stripos($sql, 'INSERT') === FALSE)
+		return ($this->is_write_type($sql) && stripos($sql, 'INSERT') === FALSE)
 			? sqlsrv_query($this->conn_id, $sql)
 			: sqlsrv_query($this->conn_id, $sql, NULL, array('Scrollable' => SQLSRV_CURSOR_STATIC));
 	}
-- 
cgit v1.2.3-24-g4f1b


From c7db6bb9b64c8322af4d727bcb71122cd7f09dbf Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 5 Jul 2012 15:11:20 +0300
Subject: Clean-up the separate drivers' DB result classes from no longer
 needed methods

---
 system/database/drivers/sqlsrv/sqlsrv_result.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index f9d5a0d29..d469ff470 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -21,7 +21,7 @@
  * @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 2.0.3
+ * @since		Version 1.0
  * @filesource
  */
 
@@ -33,6 +33,7 @@
  * @category	Database
  * @author		EllisLab Dev Team
  * @link		http://codeigniter.com/user_guide/database/
+ * @since	2.0.3
  */
 class CI_DB_sqlsrv_result extends CI_DB_result {
 
@@ -43,7 +44,9 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 */
 	public function num_rows()
 	{
-		return @sqlsrv_num_rows($this->result_id);
+		return is_int($this->num_rows)
+			? $this->num_rows
+			: $this->num_rows = @sqlsrv_num_rows($this->result_id);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 77a5d94974f546fb5f1cb04cfca4dbdf54f1d46b Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 5 Jul 2012 15:42:14 +0300
Subject: Add a default _count_string property

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 6 ------
 1 file changed, 6 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 3a4fc0aff..8bd18bd76 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -49,12 +49,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	protected $_like_escape_str = " ESCAPE '%s' ";
 	protected $_like_escape_chr = '!';
 
-	/**
-	 * The syntax to count rows is slightly different across different
-	 * database engines, so this string appears in each driver and is
-	 * used for the count_all() and count_all_results() functions.
-	 */
-	protected $_count_string = 'SELECT COUNT(*) AS ';
 	protected $_random_keyword = ' NEWID()';
 
 	// SQLSRV-specific properties
-- 
cgit v1.2.3-24-g4f1b


From 9a4f356846daa078c077cbadb227524c857b8f97 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 6 Jul 2012 11:57:37 +0300
Subject: _fetch_object(), custom_result_object() to utilize PHP's native
 capability to directly return custom class results

---
 system/database/drivers/sqlsrv/sqlsrv_result.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index d469ff470..fb7a68647 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -145,11 +145,12 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
+	 * @param	string
 	 * @return	object
 	 */
-	protected function _fetch_object()
+	protected function _fetch_object($class_name = 'stdClass')
 	{
-		return sqlsrv_fetch_object($this->result_id);
+		return sqlsrv_fetch_object($this->result_id, $class_name);
 	}
 
 }
-- 
cgit v1.2.3-24-g4f1b


From b04786599e1b032078f1d3bdd8941405d47447a0 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Wed, 18 Jul 2012 15:34:46 +0300
Subject: Remove dependancies on qb_like and remove unneeded parameters from
 _delete(), _like(), _update(), _update_batch()

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 41 ++++++------------------
 1 file changed, 10 insertions(+), 31 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8bd18bd76..6baa152e8 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -384,27 +384,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * @param	string	the table name
 	 * @param	array	the update data
-	 * @param	array	the where clause
-	 * @param	array	the orderby clause (ignored)
-	 * @param	array	the limit clause (ignored)
-	 * @param	array	the like clause
 	 * @return	string
 	 */
-	protected function _update($table, $values, $where, $orderby = array(), $limit = FALSE, $like = array())
+	protected function _update($table, $values)
 	{
-		foreach ($values as $key => $val)
-		{
-			$valstr[] = $key.' = '.$val;
-		}
-
-		$where = empty($where) ? '' : ' WHERE '.implode(' ', $where);
-
-		if ( ! empty($like))
-		{
-			$where .= ($where === '' ? ' WHERE ' : ' AND ').implode(' ', $like);
-		}
-
-		return 'UPDATE '.$table.' SET '.implode(', ', $valstr).$where;
+		$this->qb_limit = FALSE;
+		$this->qb_orderby = array();
+		return parent::_update($table, $values);
 	}
 
 	// --------------------------------------------------------------------
@@ -433,23 +419,16 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * Generates a platform-specific delete string from the supplied data
 	 *
 	 * @param	string	the table name
-	 * @param	array	the where clause
-	 * @param	array	the like clause
-	 * @param	string	the limit clause
 	 * @return	string
 	 */
-	protected function _delete($table, $where = array(), $like = array(), $limit = FALSE)
+	protected function _delete($table)
 	{
-		$conditions = array();
-
-		empty($where) OR $conditions[] = implode(' ', $where);
-		empty($like) OR $conditions[] = implode(' ', $like);
-
-		$conditions = (count($conditions) > 0) ? ' WHERE '.implode(' AND ', $conditions) : '';
+		if ($this->qb_limit)
+		{
+			return 'WITH ci_delete AS (SELECT TOP '.(int) $this->qb_limit.' * FROM '.$table.$this->_compile_where().') DELETE FROM ci_delete';
+		}
 
-		return ($limit)
-			? 'WITH ci_delete AS (SELECT TOP '.$limit.' * FROM '.$table.$conditions.') DELETE FROM ci_delete'
-			: 'DELETE FROM '.$table.$conditions;
+		return parent::_delete($table);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From d40459d94f91219f080caabebd627fdc319b0f42 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Wed, 18 Jul 2012 16:46:39 +0300
Subject: Merge where() and having() logic - it's structurally identical and
 only the keyword differs

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 6baa152e8..9ea6facb3 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -425,7 +425,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	{
 		if ($this->qb_limit)
 		{
-			return 'WITH ci_delete AS (SELECT TOP '.(int) $this->qb_limit.' * FROM '.$table.$this->_compile_where().') DELETE FROM ci_delete';
+			return 'WITH ci_delete AS (SELECT TOP '.(int) $this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete';
 		}
 
 		return parent::_delete($table);
-- 
cgit v1.2.3-24-g4f1b


From c9b924c1498847d8f324d81c8994fff0b95f26dc Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 19 Jul 2012 13:06:02 +0300
Subject: Remove _limit()'s extra parameters and qb_limit, qb_offset unneeded
 typecasts + add _compile_group_by() method

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 9ea6facb3..4eb12f910 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -425,7 +425,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	{
 		if ($this->qb_limit)
 		{
-			return 'WITH ci_delete AS (SELECT TOP '.(int) $this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete';
+			return 'WITH ci_delete AS (SELECT TOP '.$this->qb_limit.' * FROM '.$table.$this->_compile_wh('qb_where').') DELETE FROM ci_delete';
 		}
 
 		return parent::_delete($table);
@@ -439,24 +439,22 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * Generates a platform-specific LIMIT clause
 	 *
 	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
 	 * @return	string
 	 */
-	protected function _limit($sql, $limit, $offset)
+	protected function _limit($sql)
 	{
 		// As of SQL Server 2012 (11.0.*) OFFSET is supported
 		if (version_compare($this->version(), '11', '>='))
 		{
-			return $sql.' OFFSET '.(int) $offset.' ROWS FETCH NEXT '.(int) $limit.' ROWS ONLY';
+			return $sql.' OFFSET '.(int) $this->qb_offset.' ROWS FETCH NEXT '.$this->qb_limit.' ROWS ONLY';
 		}
 
-		$limit = $offset + $limit;
+		$limit = $this->qb_offset + $this->qb_limit;
 
 		// An ORDER BY clause is required for ROW_NUMBER() to work
-		if ($offset && ! empty($this->qb_orderby))
+		if ($this->qb_offset && ! empty($this->qb_orderby))
 		{
-			$orderby = 'ORDER BY '.implode(', ', $this->qb_orderby);
+			$orderby = trim($this->_compile_order_by());
 
 			// We have to strip the ORDER BY clause
 			$sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
@@ -464,7 +462,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
 				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
 				."\n) ".$this->escape_identifiers('CI_subquery')
-				."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.((int) $offset + 1).' AND '.$limit;
+				."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit;
 		}
 
 		return preg_replace('/(^\SELECT (DISTINCT)?)/i','\\1 TOP '.$limit.' ', $sql);
-- 
cgit v1.2.3-24-g4f1b


From 2d486231c0fbc9a5c9ad5bf6897e7bb1aff275ba Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 19 Jul 2012 14:46:51 +0300
Subject: Implement _compile_order_by()

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 4eb12f910..badbb8e90 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -454,13 +454,13 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		// An ORDER BY clause is required for ROW_NUMBER() to work
 		if ($this->qb_offset && ! empty($this->qb_orderby))
 		{
-			$orderby = trim($this->_compile_order_by());
+			$orderby = $this->_compile_order_by();
 
 			// We have to strip the ORDER BY clause
-			$sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+			$sql = trim(substr($sql, 0, strrpos($sql, $orderby)));
 
 			return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
-				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
+				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
 				."\n) ".$this->escape_identifiers('CI_subquery')
 				."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit;
 		}
-- 
cgit v1.2.3-24-g4f1b


From ede49ba66b127535f3430e20aac72ceed2c4611a Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 23 Jul 2012 16:06:36 +0300
Subject: Fix a bug in CI_DB_sqlsrv_driver::affected_rows()

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8bd18bd76..bda450e88 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -225,7 +225,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	public function affected_rows()
 	{
-		return sqlrv_rows_affected($this->result_id);
+		return sqlsrv_rows_affected($this->result_id);
 	}
 
 	// --------------------------------------------------------------------
-- 
cgit v1.2.3-24-g4f1b


From 2ea33c37e9bfa3ff0e029c18a0d2c9ef05016bf0 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 4 Oct 2012 12:37:51 +0300
Subject: Fix issue #1789

Signed-off-by: Andrey Andreev <narf@bofh.bg>
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 4 ----
 1 file changed, 4 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index bda450e88..abcaf4577 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -45,10 +45,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	// The character used for escaping
 	protected $_escape_char = '"';
 
-	// clause and character used for LIKE escape sequences
-	protected $_like_escape_str = " ESCAPE '%s' ";
-	protected $_like_escape_chr = '!';
-
 	protected $_random_keyword = ' NEWID()';
 
 	// SQLSRV-specific properties
-- 
cgit v1.2.3-24-g4f1b


From cd50592b26a26a2e55fc193529a2463d9a465378 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Sat, 6 Oct 2012 21:27:01 +0300
Subject: Fix issue #1257

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 16 ----------------
 1 file changed, 16 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index abcaf4577..a6739d192 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -357,22 +357,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 
 	// --------------------------------------------------------------------
 
-	/**
-	 * From Tables
-	 *
-	 * This function implicitly groups FROM tables so there is no confusion
-	 * about operator precedence in harmony with SQL standards
-	 *
-	 * @param	array
-	 * @return	string
-	 */
-	protected function _from_tables($tables)
-	{
-		return is_array($tables) ? implode(', ', $tables) : $tables;
-	}
-
-	// --------------------------------------------------------------------
-
 	/**
 	 * Update statement
 	 *
-- 
cgit v1.2.3-24-g4f1b


From 9738668fd6b4078c7eb9df3372e5035791caaaf4 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 11 Oct 2012 10:24:51 +0300
Subject: Fix issue #1875

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index a6739d192..3ffbd4c18 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -460,7 +460,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			$orderby = 'ORDER BY '.implode(', ', $this->qb_orderby);
 
 			// We have to strip the ORDER BY clause
-			$sql = trim(substr($sql, 0, strrpos($sql, 'ORDER BY '.$orderby)));
+			$sql = trim(substr($sql, 0, strrpos($sql, $orderby)));
 
 			return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
 				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.$orderby.') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
-- 
cgit v1.2.3-24-g4f1b


From 2f8bf9b4c5ee9bc183e17fd36b54be12a1bf75bb Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 12 Oct 2012 20:37:52 +0300
Subject: Set MySQL client compression to FALSE by default (problems reported
 with it), fix some typos, add encrypted database connections support and fix
 SQLSRV CharacterSet setting

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 3ffbd4c18..be321ff11 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -57,15 +57,16 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	public function db_connect($pooling = FALSE)
 	{
-		// Check for a UTF-8 charset being passed as CI's default 'utf8'.
-		$character_set = (0 === strcasecmp('utf8', $this->char_set)) ? 'UTF-8' : $this->char_set;
+		$charset = in_array(strtolower($this->char_set), array('utf-8', 'utf8'), TRUE)
+			? 'UTF-8' : SQLSRV_ENC_CHAR;
 
 		$connection = array(
 			'UID'			=> empty($this->username) ? '' : $this->username,
 			'PWD'			=> empty($this->password) ? '' : $this->password,
 			'Database'		=> $this->database,
-			'ConnectionPooling'	=> $pooling ? 1 : 0,
-			'CharacterSet'		=> $character_set,
+			'ConnectionPooling'	=> ($pooling === TRUE) ? 1 : 0,
+			'CharacterSet'		=> $charset,
+			'Encrypt'		=> ($this->encrypt === TRUE) ? 1 : 0,
 			'ReturnDatesAsStrings'	=> 1
 		);
 
-- 
cgit v1.2.3-24-g4f1b


From 4451454e190bdee2f865bd9d9e0fde0a6dff8b3c Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 23 Oct 2012 15:35:09 +0300
Subject: Fix issue #1917

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 31a0d9d10..8f615223c 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -440,9 +440,28 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			// We have to strip the ORDER BY clause
 			$sql = trim(substr($sql, 0, strrpos($sql, $orderby)));
 
-			return 'SELECT '.(count($this->qb_select) === 0 ? '*' : implode(', ', $this->qb_select))." FROM (\n"
+			// Get the fields to select from our subquery, so that we can avoid CI_rownum appearing in the actual results
+			if (count($this->qb_select) === 0)
+			{
+				$select = '*'; // Inevitable
+			}
+			else
+			{
+				// Use only field names and their aliases, everything else is out of our scope.
+				$select = array();
+				$field_regexp = ($this->_quoted_identifier)
+					? '("[^\"]+")' : '(\[[^\]]+\])';
+				for ($i = 0, $c = count($this->qb_select); $i < $c; $i++)
+				{
+					$select[] = preg_match('/(?:\s|\.)'.$field_regexp.'$/i', $this->qb_select[$i], $m)
+						? $m[1] : $this->qb_select[$i];
+				}
+				$select = implode(', ', $select);
+			}
+
+			return 'SELECT '.$select." FROM (\n\n"
 				.preg_replace('/^(SELECT( DISTINCT)?)/i', '\\1 ROW_NUMBER() OVER('.trim($orderby).') AS '.$this->escape_identifiers('CI_rownum').', ', $sql)
-				."\n) ".$this->escape_identifiers('CI_subquery')
+				."\n\n) ".$this->escape_identifiers('CI_subquery')
 				."\nWHERE ".$this->escape_identifiers('CI_rownum').' BETWEEN '.($this->qb_offset + 1).' AND '.$limit;
 		}
 
-- 
cgit v1.2.3-24-g4f1b


From 5fd3ae8d33a4f5d3159b86683b9a670e973a63f5 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Wed, 24 Oct 2012 14:55:35 +0300
Subject: [ci skip] style and phpdoc-related changes (rel #1295)

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8f615223c..32f1a59d6 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -53,6 +53,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Non-persistent database connection
 	 *
+	 * @param	bool	$pooling = FALSE
 	 * @return	resource
 	 */
 	public function db_connect($pooling = FALSE)
@@ -144,6 +145,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Begin Transaction
 	 *
+	 * @param	bool	$test_mode = FALSE
 	 * @return	bool
 	 */
 	public function trans_begin($test_mode = FALSE)
-- 
cgit v1.2.3-24-g4f1b


From c5536aac5752054f7f76e448d58b86407d8f574e Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Thu, 1 Nov 2012 17:33:58 +0200
Subject: Manually apply PR #1594 (fixing phpdoc page-level
 generation/warnings)

Also partially fixes issue #1295, fixes inconsistencies in some page-level docblocks and adds include checks in language files.
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php  | 3 ++-
 system/database/drivers/sqlsrv/sqlsrv_forge.php   | 3 ++-
 system/database/drivers/sqlsrv/sqlsrv_result.php  | 3 ++-
 system/database/drivers/sqlsrv/sqlsrv_utility.php | 3 ++-
 4 files changed, 8 insertions(+), 4 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 32f1a59d6..e49b4b17d 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
 /**
  * CodeIgniter
  *
@@ -24,6 +24,7 @@
  * @since		Version 2.0.3
  * @filesource
  */
+defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
  * SQLSRV Database Adapter Class
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index ccdb36929..1e5ef4bfd 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
 /**
  * CodeIgniter
  *
@@ -24,6 +24,7 @@
  * @since		Version 2.0.3
  * @filesource
  */
+defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
  * SQLSRV Forge Class
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index fb7a68647..fc66d9d8a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
 /**
  * CodeIgniter
  *
@@ -24,6 +24,7 @@
  * @since		Version 1.0
  * @filesource
  */
+defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
  * SQLSRV Result Class
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index d518cc15a..5f7d0bdbb 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -1,4 +1,4 @@
-<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+<?php
 /**
  * CodeIgniter
  *
@@ -24,6 +24,7 @@
  * @since		Version 2.0.3
  * @filesource
  */
+defined('BASEPATH') OR exit('No direct script access allowed');
 
 /**
  * SQLSRV Utility Class
-- 
cgit v1.2.3-24-g4f1b


From c98e93aab3997bfea4fbb9d07f7b2550a84f8f7a Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 2 Nov 2012 02:04:59 +0200
Subject: [ci skip] DocBlocks for DB drivers' utility classes

Partially fixes issue #1295.
---
 system/database/drivers/sqlsrv/sqlsrv_forge.php   |  7 +++++++
 system/database/drivers/sqlsrv/sqlsrv_utility.php | 17 +++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 1e5ef4bfd..8155565c0 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -35,8 +35,15 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  */
 class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
+	/**
+	 * DROP TABLE statement
+	 *
+	 * @var	string
+	 */
 	protected $_drop_table	= 'DROP TABLE %s';
 
+	// --------------------------------------------------------------------
+
 	/**
 	 * Create Table
 	 *
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 5f7d0bdbb..315090049 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -35,13 +35,26 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  */
 class CI_DB_sqlsrv_utility extends CI_DB_utility {
 
+	/**
+	 * List databases statement
+	 *
+	 * @var	string
+	 */
 	protected $_list_databases	= 'EXEC sp_helpdb'; // Can also be: EXEC sp_databases
+
+	/**
+	 * OPTIMIZE TABLE statement
+	 *
+	 * @var	string
+	 */
 	protected $_optimize_table	= 'ALTER INDEX all ON %s REORGANIZE';
 
+	// --------------------------------------------------------------------
+
 	/**
-	 * SQLSRV Export
+	 * Export
 	 *
-	 * @param	array	Preferences
+	 * @param	array	$params	Preferences
 	 * @return	bool
 	 */
 	protected function _backup($params = array())
-- 
cgit v1.2.3-24-g4f1b


From 8463b919e17d9bd7fa35821d547c4acc229520f7 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 2 Nov 2012 02:16:28 +0200
Subject: [ci skip] DocBlocks for DB drivers' result classes

Partially fixes issue #1295.
---
 system/database/drivers/sqlsrv/sqlsrv_result.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index fc66d9d8a..6d24cc995 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -146,7 +146,7 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	 *
 	 * Returns the result set as an object
 	 *
-	 * @param	string
+	 * @param	string	$class_name
 	 * @return	object
 	 */
 	protected function _fetch_object($class_name = 'stdClass')
-- 
cgit v1.2.3-24-g4f1b


From a24e52e1c0136db0c1949e73255b4e9bf114b437 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 2 Nov 2012 03:54:12 +0200
Subject: [ci skip] DocBlocks for DB drivers' driver classes

Partially fixes issue #1295.
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 58 ++++++++++++++++--------
 1 file changed, 38 insertions(+), 20 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index e49b4b17d..de3d87312 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -41,20 +41,38 @@ defined('BASEPATH') OR exit('No direct script access allowed');
  */
 class CI_DB_sqlsrv_driver extends CI_DB {
 
+	/**
+	 * Database driver
+	 *
+	 * @var	string
+	 */
 	public $dbdriver = 'sqlsrv';
 
-	// The character used for escaping
-	protected $_escape_char = '"';
+	// --------------------------------------------------------------------
 
+	/**
+	 * ORDER BY random keyword
+	 *
+	 * @var	string
+	 */
 	protected $_random_keyword = ' NEWID()';
 
-	// SQLSRV-specific properties
+	/**
+	 * Quoted identifier flag
+	 *
+	 * Whether to use SQL-92 standard quoted identifier
+	 * (double quotes) or brackets for identifier escaping.
+	 *
+	 * @var	bool
+	 */
 	protected $_quoted_identifier = TRUE;
 
+	// --------------------------------------------------------------------
+
 	/**
-	 * Non-persistent database connection
+	 * Database connection
 	 *
-	 * @param	bool	$pooling = FALSE
+	 * @param	bool	$pooling
 	 * @return	resource
 	 */
 	public function db_connect($pooling = FALSE)
@@ -107,7 +125,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Select the database
 	 *
-	 * @param	string	database name
+	 * @param	string	$database
 	 * @return	bool
 	 */
 	public function db_select($database = '')
@@ -131,7 +149,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Execute the query
 	 *
-	 * @param	string	an SQL query
+	 * @param	string	$sql	an SQL query
 	 * @return	resource
 	 */
 	protected function _execute($sql)
@@ -146,7 +164,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Begin Transaction
 	 *
-	 * @param	bool	$test_mode = FALSE
+	 * @param	bool	$test_mode
 	 * @return	bool
 	 */
 	public function trans_begin($test_mode = FALSE)
@@ -206,8 +224,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Escape String
 	 *
-	 * @param	string
-	 * @param	bool	whether or not the string will be used in a LIKE condition
+	 * @param	string	$str
+	 * @param	bool	$like	Whether or not the string will be used in a LIKE condition
 	 * @return	string
 	 */
 	public function escape_str($str, $like = FALSE)
@@ -274,7 +292,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 * Generates a platform-specific query string so that the table names can be fetched
 	 *
 	 * @param	bool
-	 * @return	string
+	 * @return	string	$prefix_limit
 	 */
 	protected function _list_tables($prefix_limit = FALSE)
 	{
@@ -298,7 +316,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query string so that the column names can be fetched
 	 *
-	 * @param	string	the table name
+	 * @param	string	$table
 	 * @return	string
 	 */
 	protected function _list_columns($table = '')
@@ -313,7 +331,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific query so that the column data can be retrieved
 	 *
-	 * @param	string	the table name
+	 * @param	string	$table
 	 * @return	string
 	 */
 	protected function _field_data($table)
@@ -366,8 +384,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific update string from the supplied data
 	 *
-	 * @param	string	the table name
-	 * @param	array	the update data
+	 * @param	string	$table
+	 * @param	array	$values
 	 * @return	string
 	 */
 	protected function _update($table, $values)
@@ -384,10 +402,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific truncate string from the supplied data
 	 *
-	 * If the database does not support the truncate() command,
+	 * If the database does not support the TRUNCATE statement,
 	 * then this method maps to 'DELETE FROM table'
 	 *
-	 * @param	string	the table name
+	 * @param	string	$table
 	 * @return	string
 	 */
 	protected function _truncate($table)
@@ -402,7 +420,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * Generates a platform-specific delete string from the supplied data
 	 *
-	 * @param	string	the table name
+	 * @param	string	$table
 	 * @return	string
 	 */
 	protected function _delete($table)
@@ -418,11 +436,11 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
+	 * LIMIT
 	 *
 	 * Generates a platform-specific LIMIT clause
 	 *
-	 * @param	string	the sql query string
+	 * @param	string	$sql	SQL Query
 	 * @return	string
 	 */
 	protected function _limit($sql)
-- 
cgit v1.2.3-24-g4f1b


From 2b73037e450859e85fb468ad7499a26882a67292 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 5 Nov 2012 17:01:11 +0200
Subject: Fix DB drivers version() implementations that don't execute a query

Fails if called prior to the DB connection initialization.
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index de3d87312..d3999bf75 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -275,8 +275,12 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 		{
 			return $this->data_cache['version'];
 		}
+		elseif ( ! $this->conn_id)
+		{
+			$this->initialize();
+		}
 
-		if (($info = sqlsrv_server_info($this->conn_id)) === FALSE)
+		if ( ! $this->conn_id OR ($info = sqlsrv_server_info($this->conn_id)) === FALSE)
 		{
 			return FALSE;
 		}
-- 
cgit v1.2.3-24-g4f1b


From a287a34c215903d3452023d74149eb5880125715 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Mon, 5 Nov 2012 23:19:59 +0200
Subject: Refactored DB Forge

- PDO subdrivers are isolated from each other now.
- Added compatibility for pretty much all of the features, for every DB platform.
- Unified the way that stuff works in general.
- Fixes issue #1005.
---
 system/database/drivers/sqlsrv/sqlsrv_forge.php | 160 ++++++++++--------------
 1 file changed, 64 insertions(+), 96 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index 8155565c0..da8f68c56 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -36,130 +36,98 @@ defined('BASEPATH') OR exit('No direct script access allowed');
 class CI_DB_sqlsrv_forge extends CI_DB_forge {
 
 	/**
-	 * DROP TABLE statement
+	 * CREATE TABLE IF statement
 	 *
 	 * @var	string
 	 */
-	protected $_drop_table	= 'DROP TABLE %s';
-
-	// --------------------------------------------------------------------
+	protected $_create_table_if	= "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nCREATE TABLE";
 
 	/**
-	 * Create Table
+	 * DROP TABLE IF statement
 	 *
-	 * @param	string	the table name
-	 * @param	array	the fields
-	 * @param	mixed	primary key(s)
-	 * @param	mixed	key(s)
-	 * @param	bool	should 'IF NOT EXISTS' be added to the SQL
-	 * @return	string
+	 * @var	string
 	 */
-	protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
-	{
-		$sql = ($if_not_exists === TRUE)
-			? "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'".$table."') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\n"
-			: '';
-
-		$sql .= 'CREATE TABLE '.$this->db->escape_identifiers($table).' (';
-
-		$current_field_count = 0;
-		foreach ($fields as $field => $attributes)
-		{
-			// Numeric field names aren't allowed in databases, so if the key is
-			// numeric, we know it was assigned by PHP and the developer manually
-			// entered the field information, so we'll simply add it to the list
-			if (is_numeric($field))
-			{
-				$sql .= "\n\t".$attributes;
-			}
-			else
-			{
-				$attributes = array_change_key_case($attributes, CASE_UPPER);
-
-				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
+	protected $_drop_table_if	= "IF EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'%s') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\nDROP TABLE";
 
-				if (stripos($attributes['TYPE'], 'INT') === FALSE && ! empty($attributes['CONSTRAINT']))
-				{
-					$sql .= '('.$attributes['CONSTRAINT'].')';
-				}
-
-				if ( ! empty($attributes['UNSIGNED']) && $attributes['UNSIGNED'] === TRUE)
-				{
-					$sql .= ' UNSIGNED';
-				}
-
-				if (isset($attributes['DEFAULT']))
-				{
-					$sql .= " DEFAULT '".$attributes['DEFAULT']."'";
-				}
-
-				$sql .= ( ! empty($attributes['NULL']) && $attribues['NULL'] === TRUE)
-					? ' NULL' : ' NOT NULL';
-
-				if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE)
-				{
-					$sql .= ' AUTO_INCREMENT';
-				}
-			}
+	/**
+	 * UNSIGNED support
+	 *
+	 * @var	array
+	 */
+	protected $_unsigned		= array(
+		'TINYINT'	=> 'SMALLINT',
+		'SMALLINT'	=> 'INT',
+		'INT'		=> 'BIGINT',
+		'REAL'		=> 'FLOAT'
+	);
 
-			// don't add a comma on the end of the last field
-			if (++$current_field_count < count($fields))
-			{
-				$sql .= ',';
-			}
-		}
+	// --------------------------------------------------------------------
 
-		if (count($primary_keys) > 0)
+	/**
+	 * ALTER TABLE
+	 *
+	 * @param	string	$alter_type	ALTER type
+	 * @param	string	$table		Table name
+	 * @param	mixed	$field		Column definition
+	 * @return	string|string[]
+	 */
+	protected function _alter_table($alter_type, $table, $field)
+	{
+		if (in_array($alter_type, array('ADD', 'DROP'), TRUE))
 		{
-			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $this->db->escape_identifiers($primary_keys)).')';
+			return parent::_alter_table($alter_type, $table, $field);
 		}
 
-		if (is_array($keys) && count($keys) > 0)
+		$sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' ALTER COLUMN ';
+		$sqls = array();
+		for ($i = 0, $c = count($field); $i < $c; $i++)
 		{
-			foreach ($keys as $key)
-			{
-				$key = is_array($key)
-					? $this->db->escape_identifiers($key)
-					: array($this->escape_identifiers($key));
-
-				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
-			}
+			$sqls[] = $sql.$this->_process_column($field[$i]);
 		}
 
-		return $sql."\n)";
+		return $sqls;
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Alter table query
+	 * Field attribute TYPE
 	 *
-	 * Generates a platform-specific query so that a table can be altered
-	 * Called by add_column(), drop_column(), and column_alter(),
+	 * Performs a data type mapping between different databases.
 	 *
-	 * @param	string	the ALTER type (ADD, DROP, CHANGE)
-	 * @param	string	the column name
-	 * @param	string	the table name
-	 * @param	string	the column definition
-	 * @param	string	the default value
-	 * @param	bool	should 'NOT NULL' be added
-	 * @param	string	the field after which we should add the new field
-	 * @return	string
+	 * @param	array	&$attributes
+	 * @return	void
 	 */
-	protected function _alter_table($alter_type, $table, $column_name, $column_definition = '', $default_value = '', $null = '', $after_field = '')
+	protected function _attr_type(&$attributes)
 	{
-		$sql = 'ALTER TABLE '.$this->db->escape_identifiers($table).' '.$alter_type.' '.$this->db->escape_identifiers($column_name);
-
-		// DROP has everything it needs now.
-		if ($alter_type === 'DROP')
+		switch (strtoupper($attributes['TYPE']))
 		{
-			return $sql;
+			case 'MEDIUMINT':
+				$attributes['TYPE'] = 'INTEGER';
+				$attributes['UNSIGNED'] = FALSE;
+				return;
+			case 'INTEGER':
+				$attributes['TYPE'] = 'INT';
+				return;
+			default: return;
 		}
+	}
 
-		return $sql.' '.$column_definition
-			.($default_value != '' ? ' DEFAULT "'.$default_value.'"' : '')
-			.($null === NULL ? ' NULL' : ' NOT NULL')
-			.($after_field != '' ? ' AFTER '.$this->db->escape_identifiers($after_field) : '');
+	// --------------------------------------------------------------------
+
+	/**
+	 * Field attribute AUTO_INCREMENT
+	 *
+	 * @param	array	&$attributes
+	 * @param	array	&$field
+	 * @return	void
+	 */
+	protected function _attr_auto_increment(&$attributes, &$field)
+	{
+		if ( ! empty($attributes['AUTO_INCREMENT']) && $attributes['AUTO_INCREMENT'] === TRUE && stripos($field['type'], 'int') !== FALSE)
+		{
+			$field['auto_increment'] = ' IDENTITY(1,1)';
+		}
 	}
 
 }
-- 
cgit v1.2.3-24-g4f1b


From 083e3c8d39a4fb9f8ef37f61f0ea42ec3fe1389f Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 6 Nov 2012 12:48:32 +0200
Subject: Fix #589

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index d3999bf75..3196ac103 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -495,6 +495,29 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 
 	// --------------------------------------------------------------------
 
+	/**
+	 * Insert batch statement
+	 *
+	 * Generates a platform-specific insert string from the supplied data.
+	 *
+	 * @param	string	$table	Table name
+	 * @param	array	$keys	INSERT keys
+	 * @param	array	$values	INSERT values
+	 * @return	string|bool
+	 */
+	protected function _insert_batch($table, $keys, $values)
+	{
+		// Multiple-value inserts are only supported as of SQL Server 2008
+		if (version_compare($this->version(), '10', '>='))
+		{
+			return parent::_insert_batch($table, $keys, $values);
+		}
+
+		return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
+	}
+
+	// --------------------------------------------------------------------
+
 	/**
 	 * Close DB Connection
 	 *
-- 
cgit v1.2.3-24-g4f1b


From 8d3afde93f9ff7f461095d5b9147b662610c045b Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 6 Nov 2012 12:53:47 +0200
Subject: Fix a lang key typo

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php  | 2 +-
 system/database/drivers/sqlsrv/sqlsrv_utility.php | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 3196ac103..09ccc0200 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -513,7 +513,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			return parent::_insert_batch($table, $keys, $values);
 		}
 
-		return ($this->db->db_debug) ? $this->db->display_error('db_unsuported_feature') : FALSE;
+		return ($this->db->db_debug) ? $this->db->display_error('db_unsupported_feature') : FALSE;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/sqlsrv/sqlsrv_utility.php b/system/database/drivers/sqlsrv/sqlsrv_utility.php
index 315090049..2bc7f9e03 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_utility.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_utility.php
@@ -60,7 +60,7 @@ class CI_DB_sqlsrv_utility extends CI_DB_utility {
 	protected function _backup($params = array())
 	{
 		// Currently unsupported
-		return $this->db->display_error('db_unsuported_feature');
+		return $this->db->display_error('db_unsupported_feature');
 	}
 
 }
-- 
cgit v1.2.3-24-g4f1b


From 98e46cf96447a2a6448d8dc984948a8694dbf747 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Tue, 13 Nov 2012 03:01:42 +0200
Subject: Add seed values support for Query Builder order_by

(feature request #1987)
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 09ccc0200..a3d3177f7 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -53,9 +53,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * ORDER BY random keyword
 	 *
-	 * @var	string
+	 * @var	array
 	 */
-	protected $_random_keyword = ' NEWID()';
+	protected $_random_keyword = array('NEWID()', 'RAND(%d)');
 
 	/**
 	 * Quoted identifier flag
-- 
cgit v1.2.3-24-g4f1b


From f1e1b7789b9adaf0b38b8386c99f46fc37507c8f Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 16 Nov 2012 01:27:00 +0200
Subject: Improve DB field_data() for MSSQL / SQL Server

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 37 +++++++++++++++++++-----
 system/database/drivers/sqlsrv/sqlsrv_result.php | 14 ++++-----
 2 files changed, 35 insertions(+), 16 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index a3d3177f7..1e182958c 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -325,22 +325,45 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _list_columns($table = '')
 	{
-		return "SELECT * FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";
+		return "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";
 	}
 
 	// --------------------------------------------------------------------
 
 	/**
-	 * Field data query
-	 *
-	 * Generates a platform-specific query so that the column data can be retrieved
+	 * Returns an object with field data
 	 *
 	 * @param	string	$table
-	 * @return	string
+	 * @return	array
 	 */
-	protected function _field_data($table)
+	public function field_data($table = '')
 	{
-		return 'SELECT TOP 1 * FROM '.$this->protect_identifiers($table);
+		if ($table === '')
+		{
+			return ($this->db_debug) ? $this->display_error('db_field_param_missing') : FALSE;
+		}
+
+		$sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT
+			FROM INFORMATION_SCHEMA.Columns
+			WHERE TABLE_NAME = '.$this->escape($table);
+
+		if (($query = $this->query($sql)) === FALSE)
+		{
+			return FALSE;
+		}
+		$query = $query->result_object();
+
+		$retval = array();
+		for ($i = 0, $c = count($query); $i < $c; $i++)
+		{
+			$retval[$i]			= new stdClass();
+			$retval[$i]->name		= $query[$i]->COLUMN_NAME;
+			$retval[$i]->type		= $query[$i]->DATA_TYPE;
+			$retval[$i]->max_length		= ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->NUMERIC_PRECISION : $query[$i]->CHARACTER_MAXIMUM_LENGTH;
+			$retval[$i]->default		= $query[$i]->COLUMN_DEFAULT;
+		}
+
+		return $retval;
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/sqlsrv/sqlsrv_result.php b/system/database/drivers/sqlsrv/sqlsrv_result.php
index 6d24cc995..b084b84cd 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_result.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_result.php
@@ -94,16 +94,12 @@ class CI_DB_sqlsrv_result extends CI_DB_result {
 	public function field_data()
 	{
 		$retval = array();
-		foreach (sqlsrv_field_metadata($this->result_id) as $offset => $field)
+		foreach (sqlsrv_field_metadata($this->result_id) as $i => $field)
 		{
-			$F 		= new stdClass();
-			$F->name 	= $field['Name'];
-			$F->type 	= $field['Type'];
-			$F->max_length	= $field['Size'];
-			$F->primary_key = 0;
-			$F->default	= '';
-
-			$retval[] = $F;
+			$retval[$i]		= new stdClass();
+			$retval[$i]->name	= $field['Name'];
+			$retval[$i]->type	= $field['Type'];
+			$retval[$i]->max_length	= $field['Size'];
 		}
 
 		return $retval;
-- 
cgit v1.2.3-24-g4f1b


From e1580571d2b7777bb815b0ab57279c625c182997 Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 16 Nov 2012 16:17:54 +0200
Subject: Improve DB field_data() for Oracle (and fix its max_length for MSSQL
 / SQLSRV)

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 1e182958c..3f193558a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -325,7 +325,9 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	protected function _list_columns($table = '')
 	{
-		return "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.Columns WHERE TABLE_NAME = '".$table."'";
+		return 'SELECT COLUMN_NAME
+			FROM INFORMATION_SCHEMA.Columns
+			WHERE TABLE_NAME = '.$this->escape($table);
 	}
 
 	// --------------------------------------------------------------------
@@ -359,7 +361,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			$retval[$i]			= new stdClass();
 			$retval[$i]->name		= $query[$i]->COLUMN_NAME;
 			$retval[$i]->type		= $query[$i]->DATA_TYPE;
-			$retval[$i]->max_length		= ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->NUMERIC_PRECISION : $query[$i]->CHARACTER_MAXIMUM_LENGTH;
+			$retval[$i]->max_length		= ($query[$i]->CHARACTER_MAXIMUM_LENGTH > 0) ? $query[$i]->CHARACTER_MAXIMUM_LENGTH : $query[$i]->NUMERIC_PRECISION;
 			$retval[$i]->default		= $query[$i]->COLUMN_DEFAULT;
 		}
 
-- 
cgit v1.2.3-24-g4f1b


From 4658307730c82874a73a9581da9194179f1b9b9a Mon Sep 17 00:00:00 2001
From: Andrey Andreev <narf@bofh.bg>
Date: Fri, 16 Nov 2012 16:44:31 +0200
Subject: Improve DB field_data() for PostgreSQL

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 3f193558a..7346ad275 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -327,7 +327,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	{
 		return 'SELECT COLUMN_NAME
 			FROM INFORMATION_SCHEMA.Columns
-			WHERE TABLE_NAME = '.$this->escape($table);
+			WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
 	}
 
 	// --------------------------------------------------------------------
@@ -347,7 +347,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 
 		$sql = 'SELECT COLUMN_NAME, DATA_TYPE, CHARACTER_MAXIMUM_LENGTH, NUMERIC_PRECISION, COLUMN_DEFAULT
 			FROM INFORMATION_SCHEMA.Columns
-			WHERE TABLE_NAME = '.$this->escape($table);
+			WHERE UPPER(TABLE_NAME) = '.$this->escape(strtoupper($table));
 
 		if (($query = $this->query($sql)) === FALSE)
 		{
-- 
cgit v1.2.3-24-g4f1b


From 2f32890a75f3630cf95467929c3fa7c48f4c8b44 Mon Sep 17 00:00:00 2001
From: Eco91 <Emanuel.Kardinal@t-online.de>
Date: Mon, 19 Nov 2012 15:18:09 +0100
Subject: Update system/database/drivers/sqlsrv/sqlsrv_driver.php
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Connection error if database name contains space-characters.
Use of MSSQL brackets =>
'USE [Database Name]' 
instead of
'USE Database Name'
---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 7346ad275..a5024859a 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -135,7 +135,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			$database = $this->database;
 		}
 
-		if ($this->_execute('USE '.$database))
+		if ($this->_execute('USE ['.$database.']'))
 		{
 			$this->database = $database;
 			return TRUE;
-- 
cgit v1.2.3-24-g4f1b


From d0822ced040859fea4566f073d997cb87ec54499 Mon Sep 17 00:00:00 2001
From: Eco91 <Emanuel.Kardinal@t-online.de>
Date: Mon, 19 Nov 2012 20:49:38 +0100
Subject: Update system/database/drivers/sqlsrv/sqlsrv_driver.php

---
 system/database/drivers/sqlsrv/sqlsrv_driver.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'system/database/drivers/sqlsrv')

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index a5024859a..ee9823ed1 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -135,7 +135,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 			$database = $this->database;
 		}
 
-		if ($this->_execute('USE ['.$database.']'))
+		if ($this->_execute('USE '.$this->escape_identifiers($database)))
 		{
 			$this->database = $database;
 			return TRUE;
-- 
cgit v1.2.3-24-g4f1b