Module.include vs. reopening a Module

rubyonrails-talk
1

I am attempting to create a plugin, with some methods in my own module. These would then be included to various pieces of active record. This works fine when including them in classes, but when including them in a module, the classes which include that module do not get the methods. These classes do however get them when directly reopening the module. Is there any way around this, or is it best to just reopen the module and define the new methods?

Here is a stripped down example of the problematic code…

module A def test “test” end end

class B include A end

B.new.test

=> “test”

module C def test_two “test_two” end end

A.send :include, C

B.new.test_two NoMethodError: undefined method `test_two’ for #<B:0xa7b8ddbc>

class D include A end

D.new.test_two => “test_two”

HOWEVER…

module A def test_two “test_two_again” end end

B.new.test_two

=> “test_two_again”

2

[snip]

Hi Mark:

I know that what you are trying to do is possible, but I believe since you are including modules inside modules things get a bit tricky. I would recommend posting and searching in ruby-talk, as this is really more of a standard ruby question.

- rob