public function actionSendfriendrequest($from, $to) { $members = Member::findByIds([$from, $to])->all(); if (count($members) == 2 and !Member::isFriends($members[0], $members[1])) { $friendRequest = FriendRequest::add($from, $to); } else { $friendRequest = new FriendRequest(); $friendRequest->addError('from', 'Members are already friends'); } echo $this->renderAjax('friend_request', ['friendRequest' => $friendRequest]); }