public ActionResult AssignInstructor(AssignInstructorViewModel model)
{
var course = DbContext.CourseDatabase.FirstOrDefault(p => p.Id == model.CourseId);
if (course == null)
{
return(RedirectToAction(nameof(CourseController.Details)));
}
if (model.AddSelectedInstructor != null)
{
var assignInstructor = DbContext.InstructorDatabase.FirstOrDefault(p => p.Id.ToString() == model.AddSelectedInstructor);
var courseId = assignInstructor.Courses.FirstOrDefault(p => p.Id == course.Id);
course.Instructor = assignInstructor;
assignInstructor.Courses.Add(course);
DbContext.SaveChanges();
}
return(RedirectToAction("Details", "Course", new { id = model.CourseId }));
}
public ActionResult AssignInstructor(int id)
{
var course = DbContext.CourseDatabase.FirstOrDefault(p => p.Id == id);
var instructorList = DbContext.InstructorDatabase
.Select(p => new SelectListItem()
{
Text = p.FirstName + " " + p.LastName,
Value = p.Id.ToString(),
}).ToList();
if (instructorList == null)
{
ModelState.AddModelError("", "Instructor is not found.");
return(View("Error"));
}
var model = new AssignInstructorViewModel();
model.InstructorList = instructorList;
model.CourseId = id;
return(View(model));
}
