public async Task <ActionResult> PostRate(EducatorRateInsertDTO rate)
        {
            EducatorRate newRate = new EducatorRate()
            {
                EducatorId = rate.EducatorId,
                StudentId  = rate.StudentId,
                Rate       = rate.Rate,
                Comment    = rate.Comment
            };

            var rateId = _educatorRepository.AddEducatorRate(newRate);

            return(Ok());
        }