Is it possible in Kohana to disable a rule in the model for a specific action?

Question

Kohana

Sobsno subject, Yii allows this, is it implemented in Kohana?

Answer 1

When processing the form in the controller, simply delete the rule in the text field from the rules array.

Answer 2

Please write how you solved this problem. Others, I think, will also be interesting.
In general, everything is done very simply:

     public function rules()
     {

    $rules = array(
      // здесь все наши правила без правила для "text"
    );

    if (Auth::instance()->logged_in('moderator'))
    {
      $rules['text'] = array(
        array('not_empty'),
      );
    }

        return $rules;
    }