On Feb 25, 6:28 pm, Paul PH <li...@ruby-forum.com> wrote:
> hi again, all.
> I have the following plugin included in my active record model.
> What i'd like to do, is define a method inside class_eval which returns
> the options has that was passed into it via the acts_as_item :foo=>:bar
> in my model.
>
> What i'm finding odd is that the self.foo method can access the config
> hash when printing it, but not when i try to return it.
>
Two very different things are happening: with the puts config is being
resolved just before class_eval is called: the string is interpolated
and the result passed to class_eval.
The return statement on the other hand is evaluated much later - when
the foo method is actually called. config is no longer in scope and so
you get an error.
Fred
> puts "OK FOO: #{config[:asset_root]}" - outputs ok, whereas the return
> config raises a method or variable not found error.
>
> Any ideas?
> best,
> paul.
>
> module ClassMethods
> def acts_as_item(options = {})
> include InstanceMethods
>
> config = {:asset_root=>"SOMEPATH"}
> config.update(options) if options.is_a?(Hash)
>
> class_eval <<-EOE
> def self.foo
> puts "OK FOO: #{config[:asset_root]}"
> return config
> end
> EOE
> end
> end
> --
> Posted viahttp://www.ruby-forum.com/.
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