public ActionResult Create(Department department)
{
if (ModelState.IsValid)
{
db.Departments.Add(department);
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.InstructorID = new SelectList(db.Instructors, "UserID", "InstructorName", department.UserID);
return View(department);
}
public ActionResult DeleteConfirmed(Department department)
{
try
{
db.Entry(department).State = EntityState.Deleted;
db.SaveChanges();
return RedirectToAction("Index");
}
catch (DbUpdateConcurrencyException)
{
return RedirectToAction("Delete",
new System.Web.Routing.RouteValueDictionary { { "concurrencyError", true } });
}
catch (DataException)
{
//Log the error (add a variable name after Exception)
ModelState.AddModelError(string.Empty, "Unable to save changes."+
" Try again, and if the problem persists contact your system administrator.");
return View(department);
}
}
public ActionResult Edit(Department department)
{
try
{
if (ModelState.IsValid)
{
db.Entry(department).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
}
catch (DbUpdateConcurrencyException ex)
{
var entry = ex.Entries.Single();
var databaseValues = (Department)entry.GetDatabaseValues().ToObject();
var clientValues = (Department)entry.Entity;
if (databaseValues.DepartmentName != clientValues.DepartmentName)
ModelState.AddModelError("Name", "Current value: "
+ databaseValues.DepartmentName);
if (databaseValues.UserID != clientValues.UserID)
ModelState.AddModelError("InstructorID", "Current value: "
+ db.Instructors.Find(databaseValues.UserID).InstructorName);
ModelState.AddModelError(string.Empty, "The record you attempted to edit "
+ "was modified by another user after you got the original value. The "
+ "edit operation was canceled and the current values in the database "
+ "have been displayed. If you still want to edit this record, click "
+ "the Save button again. Otherwise click the Back to List hyperlink.");
department.Timestamp = databaseValues.Timestamp;
}
catch (DataException)
{
//Log the error (add a variable name after Exception)
ModelState.AddModelError(string.Empty, "Unable to save changes."+
" Try again, and if the problem persists contact your system administrator.");
}
ViewBag.InstructorID = new SelectList(db.Instructors, "UserID", "InstructorName", department.UserID);
return View(department);
}
