Added new (clean) yii boilerplate

framework/db/schema/mssql/CMssqlSqlsrvPdoAdapter.php

@@ -0,0 +1,36 @@
+<?php
+/**
+ * CMssqlSqlsrvPdoAdapter class file.
+ *
+ * @author Timur Ruziev <resurtm@gmail.com>
+ * @link http://www.yiiframework.com/
+ * @copyright 2008-2013 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * This is an extension of default PDO class for MSSQL SQLSRV driver only.
+ * It provides workaround of the improperly implemented functionalities of PDO SQLSRV driver.
+ *
+ * @author Timur Ruziev <resurtm@gmail.com>
+ * @package system.db.schema.mssql
+ * @since 1.1.13
+ */
+class CMssqlSqlsrvPdoAdapter extends PDO
+{
+	/**
+	 * Returns last inserted ID value.
+	 * SQLSRV driver supports PDO::lastInsertId() with one peculiarity: when $sequence's value is null or empty
+	 * string it returns empty string. But when parameter is not specified at all it's working as expected
+	 * and returns actual last inserted ID (like other PDO drivers).
+	 *
+	 * @param string|null $sequence the sequence name. Defaults to null.
+	 * @return integer last inserted ID value.
+	 */
+	public function lastInsertId($sequence=null)
+	{
+		if(!$sequence)
+			return parent::lastInsertId();
+		return parent::lastInsertId($sequence);
+	}
+}