app/models/customer_financial.rb
class CustomerFinancial < ActiveRecord::Base
attr_accessible :customer, :billing_address_different, :contact_leader_id,
:payment_pending, :payment_pending_message, :notes
has_one :customer
has_many :billing_addresses, :as => :addressable, :class_name => "Address"
belongs_to :leader, :conditions => "CUSTOMER_ID = CustomerFinancials.CUSTOMER_ID", :touch => true, class_name: "Contact"
end