function currentUserHasRated()
    {
        $rateDataObj = ezsrRatingDataObject::create( array( 'contentobject_id' => $this->attribute('contentobject_id'),
                                                            'contentobject_attribute_id' =>  $this->attribute('contentobject_attribute_id'),
                                                            'created_at' => 0 ) );
        return $rateDataObj->userHasRated();
    }