public function getValuesForFieldInPolicy($sec, $ptype, $fieldIndex)
    {
        $values = [];

        if (!isset($this->model[$sec][$ptype])) {
            return $values;
        }

        foreach ($this->model[$sec][$ptype]->policy as $rule) {
            $values[] = $rule[$fieldIndex];
        }

        Util::arrayRemoveDuplicates($values);

        return $values;
    }