/**
     * Get list result periods
     *
     * @return array
     */
    public function getListResultPeriods()
    {
        return [
            'Bad',
            'Good',
        ];
    }

    /**
     * Get periods for products from request.
     *
    * @access private
    *
    * @param
    *
    * @return array
    */
    private function getProductPeriodsFromRequest($request)
    {
        $periods = [];

        $from = $request->get('period_from', []);
        $to = $request->get('period_to', []);
        $result = $request->get('allow', []);
        $comments = $request->get('comment', []);

        foreach ($from as $index => $data) {
            if (isset($to[ $index ]) && isset($result[ $index ])) {
                $md5 = md5($data . ' ' . $to[ $index]);
                $periods[ $md5 ] = [
                    'from' => $data,
                    'to' => $to[ $index ],
                    'allow' => $result[ $index ],
                    'comment' => $comments[ $index ],
                ];
            }
        }

        return $periods;
    }