From: Logan Capaldo <logancapaldo@...>
Date: 2007-08-29T11:31:46+09:00
Subject: Re: idiomatic way to assign if not nil?

On 8/28/07, Jay Levitt <jay@jay.fm> wrote:
> On Aug 28, 8:00 pm, dbl...@wobblini.net wrote:
> > >> On 29 Aug 2007, at 00:30, Jay Levitt wrote:
> >
> > >>> a = b if b
> >
> > >>> Does that exist in a DRYer form?
> >
> > I have to say, when I type this:
> >
> >    a = b if b
> >
> > I don't have the feeling that I'm repeating myself; the two b's both
> > pull their weight. So I wouldn't worry about it, from the DRY
> > perspective.
>
> Yeah, it was more that I was doing a bunch of them at once to deal
> with Rails' attr_protected feature while in a unit test, so I ended up
> writing:
> user.login = options[:login] if options[:login]
> user.password = options[:password] if options[:password]
> user.other = options[:other] if options[:other]
>
> Felt kinda repetitive.  I guess I could DRY that up in an eval loop.
Is this not what #attributes= is for?
user.attributes = options

>
>
>