From: Robert Klemme <shortcutter@...>
Date: 2010-05-04T23:50:56+09:00
Subject: Re: Scope

2010/5/4 Eduardo Mucelli R. Oliveira <edumucelli@gmail.com>:
> I have a script with those two following classes:
>
> class String
>   def to_b
>      ["true"].include?(self.downcase)
>   end
> end

Why are you doing it so complicated?  Why not just this:

def to_b
  "true" == downcase
end

> class HereIWantUseToB
>   "string".to_b
> end

You are using #to_b on a string constant that is not attached anywhere
(e.g. as class or instance variable).  What exactly are you trying to
do?

> Ok,  that works fine, the to_b method can be "seen" by
> HereIWantToUseToB class. But I wanted to those two classes inside
> another class, or module, like this:
>
> class Everything
>   # The two classes described above are here
> end
>
> module Everything
>   # The two classes described above are here
> end
>
> Anyway, for both cases I have the message "NoMethodError: undefined
> method `to_b’ for string." What is the scope point in here, what is
> the best way solve that so ?

Please show the complete code that leads to the error.

Kind regards

robert

-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/