public ActionResult Edit(Course course, IEnumerable <PrerequisiteCourse> PrerequisiteCourses)
{
if (ModelState.IsValid)
{
Course cAttached = Request <Course> .GetItemByID(course.ID, "A", "B");
course.prerequisites = cAttached.prerequisites;
if (PrerequisiteCourses == null)
{
PrerequisiteCourses = new List <PrerequisiteCourse>();
}
if (course.prerequisites == null)
{
course.prerequisites = new List <PrerequisiteCourse>();
}
//figure out the courses that were removed from the list
LinkedList <PrerequisiteCourse> toRemove = new LinkedList <PrerequisiteCourse>();
foreach (PrerequisiteCourse pcourse in course.prerequisites)
{
if (course.ID > 0)
{
if (!PrerequisiteCourses.Contains(pcourse))
{
PrerequisiteCourse elcourseAttached = Request <PrerequisiteCourse> .GetItemByID(pcourse.ID, "A", "B");
toRemove.AddFirst(elcourseAttached);
}
}
}
//remove those courses from the database
while (toRemove.Count > 0)
{
PrerequisiteCourse removeme = toRemove.First();
toRemove.RemoveFirst();
Request <PrerequisiteCourse> .Delete(removeme.ID, "A", "B");
}
//clear the list todo
course.prerequisites = new List <PrerequisiteCourse>();
//add the existing courses to the database
foreach (PrerequisiteCourse pcourse in PrerequisiteCourses)
{
PrerequisiteCourse pcourseAttached = null;;
if (pcourse.ID > 0)
{
pcourseAttached = Request <PrerequisiteCourse> .GetItemByID(pcourse.ID, "A", "B");
Request <PrerequisiteCourse> .Update(pcourseAttached, pcourse, "A", "B");
}
else
{
if (Request <Course> .GetItemByID(pcourse.prerequisiteCourseID, "A", "B") != null)
{
int id = Request <PrerequisiteCourse> .Add(pcourse, "A", "B");
pcourseAttached = Request <PrerequisiteCourse> .GetItemByID(id, "A", "B");
}
}
if (pcourseAttached != null)
{
course.prerequisites.Add(pcourseAttached);
}
}
Request <Course> .Update(cAttached, course, "A", "B");
return(RedirectToAction("Index"));
}
if (PrerequisiteCourses != null)
{
foreach (PrerequisiteCourse pcourse in PrerequisiteCourses)
{
if (pcourse.prerequisiteCourseID > 0)
{
pcourse.prerequisiteCourse = Request <Course> .GetItemByID(pcourse.prerequisiteCourseID, "A", "B");
}
}
}
course.prerequisites = PrerequisiteCourses.ToList();
return(View(course));
}
public ActionResult Edit(Course course, IEnumerable <PrerequisiteCourse> PrerequisiteCourses)
{
var courseList = _courseProducer.GetAll();
if (ModelState.IsValid)
{
Course cAttached = courseList.AsQueryable().Where(c => c.ID == course.ID).First();
course.prerequisites = cAttached.prerequisites;
if (PrerequisiteCourses == null)
{
PrerequisiteCourses = new List <PrerequisiteCourse>();
}
if (course.prerequisites == null)
{
course.prerequisites = new List <PrerequisiteCourse>();
}
//figure out the courses that were removed from the list
LinkedList <PrerequisiteCourse> toRemove = new LinkedList <PrerequisiteCourse>();
foreach (PrerequisiteCourse pcourse in course.prerequisites)
{
if (course.ID > 0)
{
if (!PrerequisiteCourses.Contains(pcourse))
{
//PrerequisiteCourse elcourseAttached = prerequisiteCourses.Where(reqc => reqc.ID == pcourse.ID).First();
PrerequisiteCourse elcourseAttached = _prerequisiteCourseProducer.Get(new PrerequisiteCourse()
{
ID = pcourse.ID
});
toRemove.AddFirst(elcourseAttached);
}
}
}
//remove those courses from the database
while (toRemove.Count > 0)
{
PrerequisiteCourse removeme = toRemove.First();
toRemove.RemoveFirst();
//prerequisiteCourses.Remove(removeme);
_prerequisiteCourseProducer.Remove(removeme);
}
//clear the list
course.prerequisites.Clear();
//add the existing courses to the database
foreach (PrerequisiteCourse pcourse in PrerequisiteCourses)
{
PrerequisiteCourse pcourseAttached = null;;
if (pcourse.ID > 0)
{
//pcourseAttached = prerequisiteCourses.Where(reqc => reqc.ID == pcourse.ID).First();
pcourseAttached = _prerequisiteCourseProducer.Get(new PrerequisiteCourse()
{
ID = pcourse.ID
});
//prerequisiteCourses.UpdateValues(pcourseAttached, pcourse);
_prerequisiteCourseProducer.Update(pcourse); //TODO: check if works correctly or need to switch w/ pcourseAttached
}
else
{
if (courseList.FirstOrDefault(x => x.ID == pcourse.prerequisiteCourseID) != null)
{
//prerequisiteCourses.Add(pcourse);
//prerequisiteCourses.SaveChanges();
_prerequisiteCourseProducer.Create(pcourse);
//pcourseAttached = prerequisiteCourses.Where(reqc => reqc.ID == pcourse.ID).First();
pcourseAttached = _prerequisiteCourseProducer.Get(new PrerequisiteCourse()
{
ID = pcourse.ID
});
}
}
if (pcourseAttached != null)
{
course.prerequisites.Add(pcourseAttached);
}
}
//courses.UpdateValues(cAttached, course);
//courses.SaveChanges();
return(RedirectToAction("Index"));
}
if (PrerequisiteCourses != null)
{
foreach (PrerequisiteCourse pcourse in PrerequisiteCourses)
{
if (pcourse.prerequisiteCourseID > 0)
{
//pcourse.prerequisiteCourse = courses.Find(pcourse.prerequisiteCourseID);
pcourse.prerequisiteCourse = courseList.FirstOrDefault(x => x.ID == pcourse.prerequisiteCourseID);
}
}
}
course.prerequisites = PrerequisiteCourses.ToList();
return(View(course));
}