From: Christoffer Sawicki <christoffer.sawicki@...>
Date: 2006-05-12T22:45:06+09:00
Subject: Re: A more elegant way to do this?

On 5/11/06, Tim Uckun <timuckun@gmail.com> wrote:
> Can anybody suggest a more elegant and rubyish way to do this?
>
> I am reading a YAML file and then trying to iterate over arrays and
> hashes that may or may not be there.
>
>  unless conf['hosts'][hostname]['groups'].nil?
>    conf['hosts'][hostname]['groups'].each { |group|
>      unless conf['crontables'][group].nil?
>          conf['crontables'][group].each { | tab_item|
>            tab_entries << tab_item
>          }
>       end #Unless
>     }
>   end #unless
>

nil.to_a # => []

conf['hosts'][hostname]['groups'].to_a.each do |group|
  conf['crontables'][group].to_a.each do |tab_item|
    tab_entries << tab_item
  end
end

-- 
Christoffer Sawicki