update set of fields ruby

Is it possible in Ruby (2) and Rails (3.2) to update a selection of fields in a single command. For example, I need to update a set of fields in a hook, where all the names match. I end up with something like this

  def set_address
    assign_attributes(address1: subscription.subscriber.address1,
                      address2: subscription.subscriber.address2,
                      address3: subscription.subscriber.address3,
                      city: subscription.subscriber.city,
                      county: subscription.subscriber.county,
                      country_id: subscription.subscriber.country_id,
                      postcode: subscription.subscriber.postcode)
  end

given that all the field names match across the two models is there an easier way to do this, or a way to group the fields together so that I can execute

def set_address
  address = subscription.subscriber.address
end

Any advice appreciated