public IActionResult Add([FromQuery] LessonStudentViewModel model)
        {
            var LessonStudentResponse = _LessonStudentService.Add(new LessonStudent
            {
                LessonId  = model.LessonId,
                StudentId = model.StudentId
            });

            if (LessonStudentResponse.IsSucceeded && LessonStudentResponse.Result != null)
            {
                return(Ok(LessonStudentResponse.Result));
            }
            return(LessonStudentResponse.HttpGetResponse());
        }
        public IActionResult Edit(int id, LessonStudentViewModel model)
        {
            var getLessonStudent = _LessonStudentService.GetLessonStudentById(id);

            if (getLessonStudent != null && getLessonStudent.IsSucceeded)

            {
                getLessonStudent.Result.StudentId = model.StudentId;
                getLessonStudent.Result.LessonId  = model.LessonId;
                var updateResult = _LessonStudentService.Update(getLessonStudent.Result);

                if (updateResult.IsSucceeded)

                {
                    return(Ok(updateResult.Result));
                }
                return(updateResult.HttpGetResponse());
            }
            return(getLessonStudent.HttpGetResponse());
        }