public async Task <ActionResult> CourseEnrollment(CourseEnrollmentViewModel model)
{
if (ModelState.IsValid)
{
var identity = (ClaimsIdentity)User.Identity;
int sid = int.Parse(identity.Claims.Where(x => x.Type == ClaimTypes.Sid).Select(x => x.Value).First());
EnrolledClass myClass = new EnrolledClass {
CourseId = int.Parse(model.CourseId), StudentId = sid
};
var res = await _userService.AddClassAsync(myClass);
if (res > 0)
{
return(Json(true));
//return View(model);
//return RedirectToAction("Index", "Home");
}
//NOTA questo funziona solo se NON รจ ajax!!!
//else
//{
// TempData["MessageToClient"] = "Course not enrolled. Please retry in 5 minutes or contact the administrator.";
// ModelState.AddModelError("", "Course not enrolled. Please retry in 5 minutes or contact the administrator.");
//}
}
// If we got this far, something failed, redisplay form
//return View(model);
return(Json(false));
}
public async Task <int> AddClassAsync(EnrolledClass enrolledClass)
{
try
{
var course = _applicationDbContext.Courses.Where(x => x.CourseId == enrolledClass.CourseId).First();
var student = _applicationDbContext.Users.Where(x => x.UserId == enrolledClass.StudentId).First();
enrolledClass.Course = course;
enrolledClass.CourseName = course.CourseName;
enrolledClass.Student = student;
enrolledClass.StudentName = student.FirstName + " " + student.LastName;
if (0 == _applicationDbContext.EnrolledClasses.Where(x => x.CourseId == course.CourseId && x.StudentId == student.UserId).Count())
{
_applicationDbContext.EnrolledClasses.Add(enrolledClass);
var result = await _applicationDbContext.SaveChangesAsync();
if (result > 0)
{
return(1);
}
else
{
return(-1);
}
}
else
{
return(1);
}
}
catch (Exception e)
{
return(-1);
}
}
