public IActionResult Create(GradeForStudentAddDTO gradeForStudentAddDTO)
{
if (ModelState.IsValid)
{
_gradeService.AddGradeToStudent(gradeForStudentAddDTO);
return(RedirectToAction("Index", new { id = gradeForStudentAddDTO.StudentId }));
}
return(View());
}
public GradeVM AddGradeToStudent(GradeForStudentAddDTO gradeForStudentAddDTO)
{
if (gradeForStudentAddDTO == null)
{
throw new ArgumentNullException($"DTO is null");
}
var teacher = _dbContext.Users.OfType <Teacher>().FirstOrDefault(t => t.Id == gradeForStudentAddDTO.TeacherId);
var student = _dbContext.Users.OfType <Student>().FirstOrDefault(t => t.Id == gradeForStudentAddDTO.StudentId);
var subject = _dbContext.Subjects.FirstOrDefault(s => s.Id == gradeForStudentAddDTO.SubjectId);
if (teacher == null)
{
throw new ArgumentNullException("Teacher is null");
}
if (!_userManager.IsInRoleAsync(teacher, "Teacher").Result)
{
throw new InvalidOperationException("Provided user is not a teacher");
}
if (student == null)
{
throw new ArgumentNullException("Student is null");
}
if (!_userManager.IsInRoleAsync(student, "Student").Result)
{
throw new InvalidOperationException("Provided user is not a student");
}
if (subject == null)
{
throw new ArgumentNullException("Subject is null");
}
var gradeEntity = _mapper.Map <Grade>(gradeForStudentAddDTO);
_dbContext.Grades.Add(gradeEntity);
_dbContext.SaveChanges();
var gradeVM = _mapper.Map <GradeVM>(gradeEntity);
return(gradeVM);
}
public IActionResult Create(int?id = null)
{
if (!id.HasValue)
{
return(View("Error"));
}
var teacher = _userManager.GetUserAsync(User).Result as Teacher;
var gradeForCreate = new GradeForStudentAddDTO()
{
TeacherId = teacher.Id
};
var subjectsVM = _mapper.Map <IEnumerable <SubjectVM> >(teacher.Subjects);
ViewBag.SubjectsSelectList = _mapper.Map <IEnumerable <SelectListItem> >(subjectsVM);
var studentVM = _studentService.GetStudent(x => x.Id == id.Value);
ViewBag.Student = studentVM;
return(View(gradeForCreate));
}