Question

I really didn’t know how to phrase the question better but here goes:

Lets say i have 2 models

class Record < ActiveRecord::Base
  has_many :roles, :dependent => :destroy
end

class Role < ActiveRecord::Base
  belongs_to :record 
end

I want a way to make sure that every time a new record instance is created 2 new roles are created automatically by the system for that record.

each role will have a name, record_id, Boolean called edit and Boolean called review.

so if i create a record called Hello and it has an ID 1 then the system should create these 2 new roles at the same time:

Role 1: name: Hello edit, record_id: 1, edit: true, review: false

Role 2: name: Hello review, record_id: 1, edit: false, review: true

Answer 1

ActiveRecord callbacks to the rescue:

class Record < ActiveRecord::Base
  after_create :create_roles

  def create_roles
    Role.create :name => "Hello edit", :record_id => self.id, :edit => true, :review => false
    Role.create :name => "Hello review", :record_id => self.id, :edit => false, :review => true
  end
end