How to call a method defined in another module in Ruby?

Question

class Foo
  include Bar
  include Baz
end

module Bar
  def do_something
  end
end

module Baz
  do_something
end

Baz module does not have access to Bar. Is there a way for it to call a method in Bar?

One approach is to extend Baz with Bar, but I want to include them all in Foo instead.

ndnenkov · Accepted Answer · 2016-09-03 07:46:40Z

2

If for whatever reason you don't want to extend Baz with Bar, you can create an object that extends Bar inside Baz:

module Bar
  def do_something
    puts 42
  end
end

module Baz
  Object.new.extend(Bar).do_something # prints 42
end

answered Sep 2, 2016 at 19:27

ndnenkov

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