...

framework/db/dao/Command.php

@@ -203,7 +203,7 @@ class Command extends \yii\base\Component
 	 */
 	public function bindValues($values)
 	{
-		if ($values !== array()) {
+		if (!empty($values)) {
 			$this->prepare();
 			foreach ($values as $name => $value) {
 				$this->pdoStatement->bindValue($name, $value, $this->connection->getPdoType(gettype($value)));

framework/db/dao/QueryBuilder.php

@@ -46,6 +46,10 @@ class QueryBuilder extends \yii\base\Object
 	 */
 	public function build($query)
 	{
+		if ($this->operation !== null) {
+			$method = array_shift($this->operation);
+			return call_user_func_array(array($this, $method), $this->operation);
+		}
 		$clauses = array(
 			$this->buildSelect($query),
 			$this->buildFrom($query),