public ActionResult AssignCourseToTrainee(TraineeCourseViewModel model) { var IfCourseExist = _context.TraineeCourses.SingleOrDefault(t => t.TraineeId == model.TraineeId && t.CourseId == model.CourseId); if (IfCourseExist != null) { var viewModel = new TraineeCourseViewModel() { Trainees = _context.Users.OfType <Trainee>().ToList(), Courses = _context.Courses.ToList() }; ViewBag.message = "This Course had been assigned to this trainee"; return(View(viewModel)); } else { var traineeCourses = new TraineeCourses() { TraineeId = model.TraineeId, CourseId = model.CourseId }; _context.TraineeCourses.Add(traineeCourses); _context.SaveChanges(); return(RedirectToAction("AllCourseOfTrainee", "TraineeRelated", new { traineeId = model.TraineeId })); } }
public ActionResult AssignCourseToTrainee(int CourseId, AssignTraineeViewModel model) { var assignCourse = new TraineeCourses(); assignCourse.CourseId = model.CourseId; assignCourse.TraineeId = model.TraineeId; if (!_context.TraineeCourses .Where(t => t.CourseId == model.CourseId) .Select(t => t.TraineeId) .Contains(model.TraineeId)) { _context.TraineeCourses.AddOrUpdate(assignCourse); _context.SaveChanges(); ViewBag.Message = "Assign successfully"; } else { ModelState.AddModelError("Validation", "This trainee has been assigned already"); } return(RedirectToAction("DetailCourse", "Staff", new { @id = CourseId })); }