ruby on rails 4 - How to auto rollback parent record if child record is not valid in has_one association -

here 2 models (rails 4.2) customer , address. customer has_one address.

class customer < activerecord::base   has_one :address, autosave: true, dependent: :destroy end  class address < activerecord::base   belongs_to :customer   validates :add_line, :presence => true end 

with autosave set true, address saved along customer. if address not valid, don't want save customer @ all. our question how set has_one association such rollback of customer happens automatically if address not valid?

use validates_associated validate address before save customer.

class customer < activerecord::base   has_one :address, autosave: true, dependent: :destroy   validates_associated :address end