public IActionResult Add([FromBody] PostResponse postResponse)
        {
            string result = IsPostCorrect(postResponse);

            if (result == "Ok")
            {
                foreach (var week in postResponse.Weeks)
                {
                    _scheduleDb.AddScheduleWeek(postResponse.University, postResponse.Facility, postResponse.Course,
                                                postResponse.Group, postResponse.Type, week);
                }
                return(Ok("weeks"));
            }


            return(StatusCode(400, result));
        }