[Rails] Re: including a blank in a dropdown

[Frederick Cheung]

On May 11, 4:01 am, Ar Chron <rails-mailing-l...@andreas-s.net> wrote:
> >     unless params[:location][:id] || params[:location][:id].empty?
>
> Or's short-circuit on the first true in the 'if' case, but are you sure
> it works as a full inverse in the 'unless' case?
>
> If it's: unless (condA || condB), which makes sense to me, you're out of
> luck.
>
> If condA is false, it WILL go after condB...
>
> Rewrite it as an 'if'

yup, expanding de morgan's laws in your head are a recipe for
disaster. (and don't forget about the blank? method).

Fred
> --
> Posted viahttp://www.ruby-forum.com/.
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