ruby: use module include in instance method of class

Question

Have a look at the code below

initshared.rb
module InitShared
  def init_shared
    @shared_obj = "foobar"
  end
end

myclass.rb

class MyClass
  def initialize()
  end
  def init
    file_name = Dir.pwd+"/initshared.rb"
    if File.file?(file_name)
      require file_name
      include InitShared
      if self.respond_to?'init_shared'
        init_shared
        puts @shared_obj
      end
    end
  end
end

The include InitShared dosn't work since its inside the method .

I want to check for the file and then include the module and then access the variables in that module.

Answer 1

Instead of using Samnang's

singleton_class.send(:include, InitShared)

you can also use

extend InitShared

It does the same, but is version independent. It will include the module only into the objects own singleton class.