No special syntax.
Just 'require' to load the module to make the application aware of that
code's existence. Then include to add the methods of that module to either
the model or controller.
# lib/cool_code.rb
module CoolCode
def do_stuff
Rails.logger.debug "do stuff"
end
end
# app/controllers/welcome_controller.rb
require 'cool_code'
class WelcomeController < ApplicationController
include CoolCode
def index
do_stuff
end
end
# app/models/post.rb
require 'cool_code'
class Post < ActiveRecord::Base
include CoolCode
def some_method
do_stuff
end
end
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