From: Logan Capaldo <logancapaldo@...>
Date: 2006-03-09T10:23:49+09:00
Subject: Re: globals outside of OO scripting


On Mar 8, 2006, at 7:58 PM, rtilley wrote:

> gwtmp01@mac.com wrote:
>> Much easier just to wrap it all in a trivial class to start with  
>> as  Ara suggested.
>
> OK, say I have this:
>
> class Thing
>
>   @@class_var = "filename"
>
>   def method
>     @method_var = "a_string"
>     ...
>   end
>
> end
>
> How can I get to these variables outside of the class.
>

You can't, that's kind of the point. You can write accessors (or  
setters and getters, whatever terminology you prefer)

e.g.

class Thing
    def method_var=(value)
          @method_var = value
     end
    def method_var()
          @method_var
    end
end

To save typing you can use
attr_accessor

class Thing
    attr_accessor :method_var
end

t = Thing.new

t.method_var = 3

t.method_var
#=> 3