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Message from discussion method conditional option pattern
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Jim Ruther Nill  
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 More options Nov 9 2012, 3:13 am
From: Jim Ruther Nill <jvn...@gmail.com>
Date: Fri, 9 Nov 2012 16:10:02 +0800
Local: Fri, Nov 9 2012 3:10 am
Subject: Re: [Rails] method conditional option pattern
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On Fri, Nov 9, 2012 at 3:27 PM, Erwin <yves_duf...@mac.com> wrote:
> When I have this pattern

>        sign_me(@user, :event => :authentication, :subdomain => subdomain)

> how can I write it to avoid sending the :subdomain option if
> subdomain.nil?   ( if possible ..)

>        sign_me(@user, :event => :authentication  #?, :subdomain =>
> subdomain unless subdomain.nil?  )

I'm not sure if it's possible to do it in a single line (as far as you want
to have a tidy code)

opts = { event: :authentication }
opts[:subdomain] = subdomain if subdomain

sign_me @user, opts

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