public async Task <IActionResult> GradeStudent(int id, string studentId, Grade grade)
{
if (string.IsNullOrEmpty(studentId))
{
return(BadRequest());
}
var userId = _userManager.GetUserId(this.User);
if (!await _trainerService.IsTrainer(id, userId))
{
return(BadRequest());
}
var success = await _trainerService.AddGradeAsync(id, studentId, grade);
if (!success)
{
return(BadRequest());
}
return(this.RedirectToAction(nameof(Students), new { id }));
}
