public ActionResult Edit(int id, CourseViewModel courseViewModel)
{
Course course = courseViewModel.Course;
IEnumerable <int> prerequisites = courseViewModel.PrerequisiteIds;
try
{
prerequisiteService.DeletePrequisiteByCourse(course.Id);
courseService.Edit(course);
if (prerequisites != null)
{
foreach (int prerequisiteId in prerequisites)
{
Prerequisite prerequisite = new Prerequisite
{
CourseId = course.Id,
CoursePrerequisiteId = prerequisiteId
};
prerequisiteService.Add(prerequisite);
}
}
return(RedirectToAction("Index"));
}
catch (Exception ex)
{
return(View(courseViewModel));
}
}