From: Tim Uckun <timuckun@...>
Date: 2006-06-08T20:29:27+09:00
Subject: Re: Two questions about data structures.

I understand what you are doing I think. It's a neat solution. But how
do I store that stuff in a database?


On 6/7/06, Daniel Schierbeck <daniel.schierbeck@gmail.com> wrote:
> I'm such a nice guy...
>
>    class Entity
>      def initialize
>        @opts = {:left_handed => false, :red_haired => true}
>      end
>
>      def method_missing(name, *args)
>        key = name.to_s[0..-2].to_sym
>        case name.to_s
>        when /\?$/
>          value = @opts[key]
>          if value.respond_to? :to_sym
>            if value.to_s =~ /!$/
>              !@opts[value.to_s[0..-2].to_sym]
>            else
>              @opts[value.to_sym]
>            end
>          elsif value.respond_to? :to_proc
>            instance_eval(&value)
>          else
>            value
>          end
>        when /=$/
>          @opts[key] = args.first
>        when /!$/
>          @opts[key] = !@opts[key]
>        else
>          super
>        end
>      end
>    end
>
>    entity = Entity.new
>    entity.likes_hendrix = true
>    entity.long_haired = true
>    entity.hippie = proc{long_haired? and likes_hendrix?}
>    entity.hippie?  => true
>
>
> Cheers,
> Daniel
>
>