Question

I’m trying to dry up some code in my Rails application that allows to set a unique id when the object is creating using a filter. I have it in multiple locations and it seems like it should be in a module instead.

Right now I have something like this in each model.

  def set_uid
    self.uid = SecureRandom.uuid
  end

I have included a new file in my /lib directory at the file uid_generator.rb and included that the module in each of the models.

//model   
include UidGenerator

module UidGenerator
  def set_uid
    self.uid = SecureRandom.uuid
  end
end

In my testing however, this yields the error

uninitialized constant MODELNAME::UidGenerator (NameError).

Answer 1

You just need to configure the autoload paths for your rails application. Here is something might be helpful. Best way to load module/class from lib folder in Rails 3?