$this->db]))->up(); (new m170907_052038_rbac_add_index_on_auth_assignment_user_id(['db' => $this->db]))->up(); } /** * {@inheritdoc} */ public function safeDown() { (new m170907_052038_rbac_add_index_on_auth_assignment_user_id(['db' => $this->db]))->up(); (new m140506_102106_rbac_init(['db' => $this->db]))->up(); } }