From: goodieboy <goodieBoy@...>
Date: 2008-02-29T06:15:05+09:00
Subject: Re: Help with the DSL (ish) config class

Hi that's great! I'm wondering though, is it possible to turn the
whole thing into a Hash?

What I'd like to be able to do is:

1. create a default config with only the code to be evaluated
2. push that code into a file (no problem)
3. load it into a hash later

With #1, here is an example:
Configuration.for('a'){
  a 40
  b 4
  c 2
}

I'd like to have a file with only this in it:
a 40
b 4
c 2

Is that possible? Without calling self?

Thanks again, I'm going to pick this apart and see if I can learn
something from it! :)

Matt

On Feb 28, 3:49 pm, -a <ara.t.how...@gmail.com> wrote:
> 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/R...
>
>   gem install configuration
>
> cheeers