Added new (clean) yii boilerplate

framework/db/schema/mysql/CMysqlCommandBuilder.php

@@ -0,0 +1,43 @@
+<?php
+/**
+ * CMysqlCommandBuilder class file.
+ *
+ * @author Carsten Brandt <mail@cebe.cc>
+ * @link http://www.yiiframework.com/
+ * @copyright 2008-2013 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+/**
+ * CMysqlCommandBuilder provides basic methods to create query commands for tables.
+ *
+ * @author Carsten Brandt <mail@cebe.cc>
+ * @package system.db.schema.mysql
+ * @since 1.1.13
+ */
+class CMysqlCommandBuilder extends CDbCommandBuilder
+{
+	/**
+	 * Alters the SQL to apply JOIN clause.
+	 * This method handles the mysql specific syntax where JOIN has to come before SET in UPDATE statement
+	 * and for DELETE where JOIN has to be after FROM part.
+	 * @param string $sql the SQL statement to be altered
+	 * @param string $join the JOIN clause (starting with join type, such as INNER JOIN)
+	 * @return string the altered SQL statement
+	 */
+	public function applyJoin($sql,$join)
+	{
+		if($join=='')
+			return $sql;
+
+		if(strpos($sql,'UPDATE')===0 && ($pos=strpos($sql,'SET'))!==false)
+			return substr($sql,0,$pos).$join.' '.substr($sql,$pos);
+		elseif(strpos($sql,'DELETE FROM ')===0)
+		{
+			$tableName=substr($sql,12);
+			return "DELETE {$tableName} FROM {$tableName} ".$join;
+		}
+		else
+			return $sql.' '.$join;
+	}
+}