From: -a <ara.t.howard@...>
Date: 2008-02-29T05:49:29+09:00
Subject: Re: Help with the DSL (ish) config class



On Feb 28, 12:50 pm, goodieboy <goodie...@gmail.com> wrote:
> Hi,
>
> I experimenting with this config class. I'm hoping to get something
> really easy to write and I'm on to something here, well at least I
> thought I was. This class allows me to build a nested Has like:
>
> Config.new do
>   simple_setting 'the value'
>   nested {
>     nested_key 'nested_value'
>     deep_nesting {
>       deep_nested_key 'deep nested value'
>     }
>   }
> end
>
> The problem is that if I have a key that matches the name of the Hash
> class method set, problems arise. Currently, the only way that the
> settings can be made is if the method doesn't exist (using
> method_missing). Obviously, this is a problem. Would someone mind
> kicking in here and giving me a clue as to how I could solve this
> problem? Is it possible to do what I want, with out having to use
> method_missing?
>
> Thanks - matt
>
> class Config < Hash
>   def initialize(init_data=nil, &block)
>     update init_data if init_data.respond_to?(:each_pair)
>     configure(&block)
>   end
>
>   def configure(&block)
>     instance_eval(&block) if block_given?
>   end
>
>   def method_missing(method, data=nil, &block)
>     self[method] = data
>     if data.nil?
>       # if data.nil?, create a skelton using the method as key (method
> chaining)
>       return self[method] = self.class.new(data, &block)
>     end
>     self
>   end
> end

i've already done it for you:

  http://codeforpeople.com/lib/ruby/configuration/configuration-0.0.5/README

  gem install configuration

cheeers