Create dependant record on Clearance user creation

Question

I simply want to create another record when the user signs up. I think the following are the only places where Clearance touches my app, not counting the views.

class ApplicationController < ActionController::Base
  include Clearance::Controller
  before_action :require_login
  .
  .
  .
end

class User < ActiveRecord::Base
  include Clearance::User
  has_many :received_messages, class_name: 'Message', foreign_key: :receiver_id
  has_one :privilege
end

Answer 1

You want after_create (or perhaps before_create, or some other hook, depending on your semantics), which is provided by Rails independent of Clearance. It lets you declare a method to run after your User record is created, and the method can create other objects that you want to exist.

class User < ActiveRecord::Base
  after_create :create_other_thing

  private

  def create_other_thing
    OtherThing.create(other_thing_attributes)
  end
end

Be aware than after_create runs in the same transaction as your User creation, so if there's an exception during OtherThing.create, both it and the User will be rolled back.

Check out Active Record Callbacks for full details on how ActiveRecord lifecycle hooks work.