1 files changed, 4 insertions, 30 deletions

diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 8d383b274..414669a4b 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -197,22 +197,10 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	/**
 	 * Begin Transaction
 	 *
-	 * @param	bool	$test_mode
 	 * @return	bool
 	 */
-	public function trans_begin($test_mode = FALSE)
+	protected function _trans_begin()
 	{
-		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
-		{
-			return TRUE;
-		}
-
-		// 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);
-
 		return sqlsrv_begin_transaction($this->conn_id);
 	}
 
@@ -223,14 +211,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * @return	bool
 	 */
-	public function trans_commit()
+	protected function _trans_commit()
 	{
-		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
-		{
-			return TRUE;
-		}
-
 		return sqlsrv_commit($this->conn_id);
 	}
 
@@ -241,14 +223,8 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 *
 	 * @return	bool
 	 */
-	public function trans_rollback()
+	protected function _trans_rollback()
 	{
-		// When transactions are nested we only begin/commit/rollback the outermost ones
-		if ( ! $this->trans_enabled OR $this->_trans_depth > 0)
-		{
-			return TRUE;
-		}
-
 		return sqlsrv_rollback($this->conn_id);
 	}
 
@@ -275,9 +251,7 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	 */
 	public function insert_id()
 	{
-		$query = $this->query('SELECT @@IDENTITY AS insert_id');
-		$query = $query->row();
-		return $query->insert_id;
+		return $this->query('SELECT SCOPE_IDENTITY() AS insert_id')->row()->insert_id;
 	}
 
 	// --------------------------------------------------------------------