I have  Admin class & User class and a polymorphic Profile class

class Admin < ActiveRecord::Base
  include ActiveModel::Validations
  has_one :profile, :as => :profitable
  accepts_nested_attributes_for :profile
  validates_associated :profile

class User < ActiveRecord::Base
  include ActiveModel::Validations
  has_one :profile, :as => :profitable

class Profile < ActiveRecord::Base
  belongs_to :profilable, :polymorphic => true
  validates :title, :first_name, :last_name , :presence => true, :if
=>Proc.new { |p| p[:profilable_type] == "Admin" }

I am trying to validates a new Admin form with nested attributes
 but I  don't need the profile validation for the User class,
 I wrote a validation in the Profile class  with a Proc block to test
the profilable_type, but it's not working ....
is there another way to try ?



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