Add a throws comment to BaseActiveRecord save

framework/db/BaseActiveRecord.php

@@ -681,6 +681,7 @@ public function getDirtyAttributes($names = null)
      * @param array|null $attributeNames list of attribute names that need to be saved. Defaults to null,
      * meaning all attributes that are loaded from DB will be saved.
      * @return bool whether the saving succeeded (i.e. no validation errors occurred).
+     * @throws Exception in case update or insert failed.
      */
     public function save($runValidation = true, $attributeNames = null)
     {