Merge pull request #1021 from billmn/pdo-sqlserver-fix

Fixed PDO Connection for MS SQL Server

classes/database/pdo/connection.php

@@ -83,13 +83,22 @@ public function connect()
 		}
 		catch (\PDOException $e)
 		{
-			throw new \Database_Exception($e->getMessage(), $e->getCode(), $e);
+			$error_code = is_numeric($e->getCode()) ? $e->getCode() : 0;
+			throw new \Database_Exception($e->getMessage(), $error_code, $e);
 		}
 
 		if ( ! empty($this->_config['charset']))
 		{
-			// Set the character set
-			$this->set_charset($this->_config['charset']);
+			// Set Charset for SQL Server connection
+			if (strtolower($this->driver_name()) == 'sqlsrv')
+			{
+				$this->_connection->setAttribute(\PDO::SQLSRV_ATTR_ENCODING, \PDO::SQLSRV_ENCODING_SYSTEM);
+			}
+			else
+			{
+				// Set the character set
+				$this->set_charset($this->_config['charset']);
+			}
 		}
 	}
 
@@ -101,6 +110,15 @@ public function disconnect()
 		return true;
 	}
 
+	/**
+	 * Get the current PDO Driver name
+	 * @return string
+	 */
+	public function driver_name()
+	{
+		return $this->_connection->getAttribute(\PDO::ATTR_DRIVER_NAME);
+	}
+
 	public function set_charset($charset)
 	{
 		// Make sure the database is connected