public function get_coefstring() {
        $parent_category = $this->load_parent_category();
        if ($this->is_category_item()) {
            $parent_category = $parent_category->load_parent_category();
        }

        if ($parent_category->is_aggregationcoef_used()) {
            return $parent_category->get_coefstring();
        } else {
            return false;
        }
    }
public function get_coefstring() {
        $parent_category = $this->load_parent_category();
        if ($this->is_category_item()) {
            $parent_category = $parent_category->load_parent_category();
        }

        if ($parent_category->is_aggregationcoef_used()) {
            return $parent_category->get_coefstring();
        } else {
            return false;
        }
    }
public function get_coefstring ( ) { $ parent_category = $ this -> load_parent_category ( ) ; if ( $ this -> is_category_item ( ) ) { $ parent_category = $ parent_category -> load_parent_category ( ) ; } if ( $ parent_category -> is_aggregationcoef_used ( ) ) { return $ parent_category -> get_coefstring ( ) ; } else { return false ; } }
Queries parent categories recursively to find the aggregationcoef type that applies to this grade item.

@return string|false Returns the coefficient string of false is no coefficient is being used
Queries parent categories recursively to find the aggregationcoef type that applies to this grade item .