public JsonResult Add(StudentViewModel viewModel)
{
// Populate VM
viewModel = PopulateViewModel(viewModel);
// Validate model state
if (!ModelState.IsValid)
return Json(new { error = true, message = "There were errors in the submission" });
// Attempt to add the student to the database/course offering
try
{
// Get the created student from the factory
var studentFactory = new StudentFactory();
var student = studentFactory.CreateStudent(viewModel.Number.ToString(), viewModel.Name, viewModel.Type);
// Get the course offering
var offering = _courseService.GetCourseOffering(viewModel.SelectedYear, viewModel.SelectedSemester, viewModel.SelectedOffering);
// Add the student
_courseService.AddStudent(student, offering);
}
catch (StudentExistsException)
{
return Json(new { error = true, message = "Student already in course offering" });
}
return Json(new { error = false, message = "Student successfully added to course offering!" });
}
// Populate Student View Model
public StudentViewModel PopulateViewModel(StudentViewModel viewModel)
{
viewModel.CourseOfferings = _courseService.GetAllCourseOfferings();
viewModel.CourseOfferings.Sort(new CourseOfferingComparer());
return viewModel;
}
public PartialViewResult List(string courseId, string semester, int year)
{
// Get the selected course offering
var offering = _courseService.GetCourseOffering(year, semester, courseId);
// Get students in offering and sort based out custom comparer
var students = _courseService.GetStudents(offering);
students.Sort(StudentComparer.CustomSort);
// Update view model with students in course offering
var viewModel = new StudentViewModel()
{
Students = students
};
return PartialView("_DisplayStudents", viewModel);
}