public ActionResult Edit(int? id, NoteEdit newItem)
{
// Validate the input
if (!ModelState.IsValid)
{
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.Id });
}
if (id.GetValueOrDefault() != newItem.Id)
{
// This appears to be data tampering, so redirect the user away
return RedirectToAction("index");
}
// Attempt to do the update
var editedItem = m.NoteEdit(newItem);
if (editedItem == null)
{
// There was a problem updating the object
// Our "version 1" approach is to display the "edit form" again
return RedirectToAction("edit", new { id = newItem.Id });
}
else
{
// Show the details view, which will have the updated data
return RedirectToAction("details", new { id = newItem.Id});
}
}
public NoteBase NoteEdit(NoteEdit newItem)
{
// Attention - 6 - Edit existing, for the authenticated user only
// Attempt to fetch the object
// Can either do a two-condition fetch, or test it in the "if" statement
// In this method, we'll do it in the following statement
var o = ds.Notes.SingleOrDefault
(n => n.Id == newItem.Id && n.Owner == UserAccount.Name);
if (o == null)
{
// Problem - item was not found, so return
return null;
}
else
{
// Update the object with the incoming values
ds.Entry(o).CurrentValues.SetValues(newItem);
ds.SaveChanges();
// Prepare and return the object
return Mapper.Map<NoteBase>(o);
}
}