public async Task <IHttpActionResult> PutSchedule(ScheduleUpdateViewModel model)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }

            try
            {
                var schedule = await _schedules.Find(model.Id);

                schedule.TimeStarted  = model.TimeStarted;
                schedule.TimeFinished = model.TimeFinished;
                schedule.DayOfWeek    = model.DayOfWeek;

                await _schedules.Update(schedule);
            }
            catch (DbUpdateConcurrencyException)
            {
                if (!_schedules.Exists(model.Id))
                {
                    return(NotFound());
                }
                else
                {
                    throw;
                }
            }

            return(StatusCode(HttpStatusCode.NoContent));
        }