From: Farrel Lifson <farrel.lifson@...>
Date: 2006-10-27T17:12:33+09:00
Subject: Re: Getting (var = false) to return true?

On 27/10/06, Joe Ruby MUDCRAP-CE <joeat303@yahoo.com> wrote:
> In Rails (it's more of a Ruby question though ;) ), I have:
>
> def before_update
>   @var = get_old_var_value
> end
>
> and if get_old_var_value returns a false value it causes the update to
> cancel. Is there some function that'll return true after setting the
> var? Something like, oh I dunno, set_var(:var, get_old_var_value).
> Rails' write_attribute also seems to return the value of the var (so
> false causes problems with it too). I know I can just simply do this:
>
> def before_update
>   @var = get_old_var_value
>   true
> end
>
> But I'm just curious if there are other approaches.
>
> Thanks,
> Joe
>
> --
> Posted via http://www.ruby-forum.com/.

 def before_update
   @var = get_old_var_value || true
 end

This returns get_old_var_value if it's not false (or nil) or true
otherwise. Is that what you need?

Farrel