Remove an argument from a Ruby method call at the root of a class. On-the-fly

Here is a Ruby class:

class User
  devise :trackable, :confirmable
end

For most i开发者_如何学运维nstances I want :confirmable to be present, but for some instances, I would like to remove :confirmable before instantiation.

QUESTION: How to remove :confirmable on-the-fly?

I would rather avoid creating a separate class.

---

devise :confirmable adds a number of methods to your model, one of which is skip_confirmation!:

If you don’t want confirmation to be sent on create, neither a code to be generated, call skip_confirmation!

Example:

  user = User.new
  user.skip_confirmation!

---

You will need the migrations for both :trackable and :confirmable in any case for your DB.

Wouldn't it be easier to just have :confirmable defined for both cases, but in the case you don't want it, you can automatically confirm the user account from within the controller, after the user is created?

see:
https://github.com/plataformatec/devise/blob/master/lib/devise/models/confirmable.rb

lines 27..30 contain the before_create and after_create hooks

you'll need to do this modification:

you'll need to override :confirmation_required? , so that it returns true only in the cases where you want a confirmation token to be generated and a confirmation email to be sent. In the case you don't need the confirmation email, you can do a user.confirm! after creating the user account. You could put this in as an additional after_create action.

e.g.

module Devise
  module Models
     module Confirmable
       after_create  :confirm! , :if => :confirmation_not_required?    # you'll need to define that method

       private 
       def confirmation_required?   # overriding the default behavior
         your_special_conditions && !confirmed?
       end

       def confirmation_not_required?
         ! confirmation_required?
       end
     end
  end
end

Note: Instead of user.confirm! you could also use user.skip_confirmation!