Hi *,
module Included
def whatever
do_something_with FOO
end
end
module Includer
include Included
class Whatever
FOO = ‘whatever’
end
end
this is not just an example to invent stupid variable names, but a
question.
I would like to include the Included module and have visibility on the
Includer module constants (think about validation, different classes
need different data).
Can you suggest me a way to accomplish that, to have a method inside a
module that checks data inside a class in another module, and define
the rules in the class itself ?
“You’re an idiot you should do like that” answers are welcome 
ngw
On Tue, Dec 30, 2008 at 11:20 PM, Nicholas W.
[email protected] wrote:
Hi *,
[snip example code]
Can you suggest me a way to accomplish that, to have a method inside a
module that checks data inside a class in another module, and define the
rules in the class itself ?
This is one approach:
module Included
def whatever
puts self.class::FOO
end
end
module Includer
class Whatever
include Included
FOO = ‘whatever’
end
end
o = Includer::Whatever.new
o.whatever # => “whatever”
Note you have to include the module inside the class - including it in
the enclosing module does not do what you may think 
Regards,
Sean
You might be looking for extend instead of include:
module Foo
def foo
puts self::FooBar::TEST;
end
end
module Bar
extend Foo;
class FooBar
TEST = "Whatever";
end
end
Bar.foo; # Prints out “Whatever”
See if it works for you
