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
···
--
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
···
On Tue, Dec 30, 2008 at 11:20 PM, Nicholas Wieland <nicholas.wieland@gmail.com> wrote:
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
···
On Tue, Dec 30, 2008 at 10:30 PM, Sean O'Halpin <sean.ohalpin@gmail.com>wrote:
On Tue, Dec 30, 2008 at 11:20 PM, Nicholas Wieland > <nicholas.wieland@gmail.com> 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
--
Bernardo Rufino