// returns null if the user is not currently an instructor of this class
public InstructorRosterEntry TestInstructorRoster(InstructorRosterEntry Instructor)
{
InstructorRosterEntry temp = context.InstructorRosterEntries.FirstOrDefault(u => (u.InstuctorID == Instructor.InstuctorID) && (u.ClassID == Instructor.ClassID));
return temp;
}
public void DropInstructorRoster(InstructorRosterEntry Instructor)
{
InstructorRosterEntry i = context.InstructorRosterEntries.FirstOrDefault((e => (e.ClassID == Instructor.ClassID) && (e.InstuctorID == Instructor.InstuctorID)));
context.InstructorRosterEntries.Remove(i);
}
public ActionResult AddNewInstructor(FormCollection formValues)
{
int cid = (int)Session["ClassID"];
var uid = Int32.Parse(formValues["UserID"]);
// avoid duplicate entries
InstructorRosterEntry temp = new InstructorRosterEntry { InstuctorID = uid, ClassID = cid };
if (repository.TestInstructorRoster(temp) == null)
repository.AddInstructor(cid, uid);
TempData["message"] = string.Format("User {0} has been added to the Instructors of class {1}.", temp.InstuctorID, temp.ClassID);
return RedirectToAction("EditInstructors/" + cid.ToString());
}
public void AddInstructor(int cid, int uid)
{
var newInstructor = new InstructorRosterEntry { InstuctorID = uid, ClassID = cid };
context.InstructorRosterEntries.Add(newInstructor);
context.SaveChanges();
}
public ActionResult DropInstructor(int id)
{
int cid = (int)Session["ClassID"];
int userID = id;
InstructorRosterEntry temp = new InstructorRosterEntry { InstuctorID = userID, ClassID = cid };
repository.DropInstructorRoster(temp);
repository.SaveChanges();
TempData["message"] = string.Format("User {0} has been dropped from Class {1}.", temp.InstuctorID, temp.ClassID);
return RedirectToAction("EditInstructors/" + cid.ToString());
}
