Nette\Database\Table\ActiveRow::__set PHP Method

    public function __set($key, $value)
    {
        throw new Nette\DeprecatedException('ActiveRow is read-only; use update() method instead.');
    }

 /**
  * @param $key
  * @param $value
  */
 public function __set($key, $value)
 {
     $this->activeRow->__set($key, $value);
 }