protected function checkEvent($param)
    {
        $dateStart = $param['dateTimeStart']/1000;
        $dateEnd = $param['dateTimeEnd']/1000;
        $day = date("Y-m-d", $param['dateTimeStart']/1000);
        $day = $this->pdo->quote($day.'%');
        $idRoom = $this->pdo->quote($param['id_room']);
        $sql = 'SELECT '
            .' time_start,'
            .' time_end'
            .' FROM events'
            .' WHERE'
            .' time_start'
            .' LIKE'
            .' '.$day
            .' AND id_room ='.$idRoom;
        $data = $this->selectQuery($sql);

        if (!is_array($data))
        {
            return true;
        }
        foreach ($data as $val)
        {
            $arrStart = strtotime($val['time_start']);
            $arrEnd = strtotime($val['time_end']);
            if (($arrStart < $dateStart && $arrEnd <= $dateStart) || ($dateEnd <= $arrStart && $dateEnd < $arrEnd))
            {
                return true;
            }
            else{
                return false;
            }
        }
    }