Voyager validation unique

unique:table,column,except,idColumn how can i put this values in bread

public function validateBread($request, $data)
    {
        $rules = [];
        $messages = [];

        foreach ($data as $row) {
            $options = json_decode($row->details);

            if (isset($options->validation)) {
                if (isset($options->validation->rule)) {
                    if (!is_array($options->validation->rule)) {
                        $rules[$row->field] = explode(\'|\', $options->validation->rule);
                    } else {
                        $rules[$row->field] = $options->validation->rule;
                    }
                }

                if (isset($options->validation->messages)) {
                    foreach ($options->validation->messages as $key => $msg) {
                        $messages[$row->field.\'.\'.$key] = $msg;
                    }
                }
            }
        }

        return Validator::make($request, $rules, $messages);