rolify

gistfile1.rb

# User model
class Usuario < ActiveRecord::Base
  rolify :role_cname => 'Rol'
  
  # Include default devise modules. Others available are:
  # :token_authenticatable, :confirmable,
  # :lockable, :timeoutable and :omniauthable
  devise :database_authenticatable, :registerable,
         :recoverable, :rememberable, :trackable, :validatable

  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me
  # attr_accessible :title, :body
end


# Role model
class Rol < ActiveRecord::Base
  has_and_belongs_to_many :usuarios, :join_table => :usuarios_rols
  belongs_to :resource, :polymorphic => true
  
  scopify
end

irb(main):010:0> u
=> #<Usuario id: 1, email: "[email protected]", encrypted_password: "$2a$10$iBJWUyl/4MLOm4zbKMQ2Y.1NTDo9gwLJg9IMnGFhg50x...", reset_password_token: nil, reset_password_sent_at: nil, remember_created_at: nil, sign_in_count: 0, current_sign_in_at: nil, last_sign_in_at: nil, current_sign_in_ip: nil, last_sign_in_ip: nil, created_at: "2012-12-06 20:06:46", updated_at: "2012-12-06 20:06:46">

irb(main):009:0> u.add_role :admin
  Rol Load (0.2ms)  SELECT "rols".* FROM "rols" WHERE "rols"."name" = 'admin' AND "rols"."resource_type" IS NULL AND "rols"."resource_id" IS NULL LIMIT 1
   (0.1ms)  begin transaction
  SQL (0.7ms)  INSERT INTO "rols" ("created_at", "name", "resource_id", "resource_type", "updated_at") VALUES (?, ?, ?, ?, ?)  [["created_at", Thu, 06 Dec 2012 20:07:04 UTC +00:00], ["name", "admin"], ["resource_id", nil], ["resource_type", nil], ["updated_at", Thu, 06 Dec 2012 20:07:04 UTC +00:00]]
   (1.4ms)  commit transaction
  Rol Load (0.2ms)  SELECT "rols".* FROM "rols" WHERE "rols"."id" = ? LIMIT 1  [["id", 1]]
   (0.0ms)  begin transaction
   (0.3ms)  INSERT INTO "usuarios_rols" ("usuario_id", "rol_id") VALUES (1, 1)
   (1.0ms)  commit transaction
=> #<Rol id: 1, name: "admin", resource_id: nil, resource_type: nil, created_at: "2012-12-06 20:07:04", updated_at: "2012-12-06 20:07:04">