For my edit_modeluser methods, I wanted to edit only those text-
parameters that actually had something in it (if there’s nothing in
the password parameters, then don’t change it!), and it almost looked
like the update_attributes method was the answer, only to find out
that the method overrides the validation methods in a model.
OK…That’s not good. Is there some other method that can update
only a single parameter AND pass through the validation ONLY on that
parameter?
If not, then I guess I have to do the validation method in the
controller itself.