public IActionResult Create(Course course)
{
if (ModelState.IsValid)
{
courseDB.SaveCourse(course);
TempData["successMessage"] = $"Course {course.Name} successfully created!";
return(RedirectToAction(nameof(Display)));
}
else
{
return(View("Insert", course));
}
}
public async Task <IActionResult> Enroll(int CourseId)
{
if (CourseId == 0)
{
TempData["errorMessage"] = "No course was selected. Please try again";
return(RedirectToAction(nameof(List)));
}
Course course = courseDB.Courses.FirstOrDefault(c => c.CourseId == CourseId);
if (course == null)
{
TempData["errorMessage"] = "Please select a valid course.";
return(RedirectToAction(nameof(List)));
}
Student student = await getLoggedInStudent();
if (student == null)
{
TempData["errorMessage"] = "No student registered with this account. Please contact customer support.";
return(RedirectToAction(nameof(List)));
}
if (course.Students.Contains(student))
{
TempData["errorMessage"] = "You are already enrolled this course.";
return(View("Enroll", course));
}
else if (course.Students.Count >= course.MaxSize)
{
TempData["errorMessage"] = "This course is currently full. Please try again when there is space.";
return(View("Enroll", course));
}
else if (ModelState.IsValid)
{
CourseStudent csdb = course.AddStudent(student);
studentDB.SaveStudent(student);
csDB.AddCourseStudents(csdb);
courseDB.SaveCourse(course);
TempData["successMessage"] = $"Successfully enrolled in {course.Code}: {course.Name}.";
return(RedirectToAction(nameof(EnrolledCoursesList)));
}
return(RedirectToAction(nameof(List)));
}
