From: James Golick <jamesgolick@...>
Date: 2007-10-14T07:04:41+09:00
Subject: Setter scoping issue

So, I had this really cool idea for a syntax.

class Options
  attr_accessor :something, :something_else
end

class Post
  @@options ||= Options.new
  def self.options(&block)
    @@options.instance_eval &block if block_given?
    @@options
  end
end

Post.options.something = "something"
assert_equal "something", Post.options.something

Post.options do
  something = "something"
  something_else = "something_else
end
assert_equal "something", Post.options.something
assert_equal "something_else", Post.options.something_else

That's the idea anyway.  A shorthand for scoping setters.  If you want
to set one option, you call the whole method chain.  If you want to set
multiple options, you use a block.

Unfortunately, the setters don't seem to work in the block without an
explicit self.

Post.options do
  self.something = "something"
  self.something_else = "something_else
end

...which defeats the entire purpose of the shorthand.

Anybody have any ideas?
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