Question

I have added options in application.rb:

config.autoload_paths += %W(#{config.root}/lib)
config.autoload_paths += Dir["#{config.root}/lib/**/"]

and lib\functions.rb:

def some_lib
   return "#######################################"
end

In controller I’m trying to call this function, but get the error:

undefined local variable or method `some_lib' for #<TodosController:0x49a3850>

How can I fix it?

Answer 1

In order to have rails autoload from the lib dir, you need to follow rails naming conventions.

lib/functions.rb

class Functions
  def self.some_lib
     return "#######################################"
  end
end

Then you can Functions.some_lib

Or

lib/functions.rb

module Functions
  def some_lib
    return "#######################################"
  end
end

Then include Functions where you need your methods. This allows you to execute:

some_lib