Best way to add/edit a listing

[eluser]Crimp[/eluser]
I do this the exact same way: using the presence of segment 3 as a switch.

However, I do pass an action variable to the view, $data['action'] = new or edit, to make it easier to keep up with the code.

I use this to keep multiple versions of the "same" form in the same view.

One example would be a user registration/profile form where new sign-ups require username, password and repeat password and the edit version requires old password, new password and repeat new password.

I then set all those fields in the view based on the action var.