Question

I have a method in file lib/my/column.rb

module Column
  def array_each_col(num_of_cols, array_arg)
     .. code will return array ..
  end
end

And I want to use it in my model

class Area < ActiveRecord::Base
  include Column


  def self.my_areas 
     all_areas = Area.all    
     num_of_cols = 2       
     self.array_each_col(num_of_cols, all_areas)
  end
end

My application.rb

module MyAppName
  class Application < Rails::Application
     config.autoload_paths << "#{config.root}/lib/my"

But it doesn’t work

Answer 1

to make module methods available in class methods, you gotta use extend rather than include