save / update related object

Imagine that I have the following objects:

class Person < ActiveRecord::Base   has_one :nose end

class Nose < ActiveRecord::Base end

p = Person.new p.name = "Mary" p.nose = Nose.new p.save

p.nose.colour = "white" p.save

Why in the last p.save, p.nose.colour is not persisted in database? Is there any way of doing this in an automatic way?

Regards,

Paulo Abreu

Imagine that I have the following objects:

class Person < ActiveRecord::Base has_one :nose end

class Nose < ActiveRecord::Base end

p = Person.new p.name = "Mary" p.nose = Nose.new p.save

p.nose.colour = "white" p.save

Why in the last p.save, p.nose.colour is not persisted in database? Is there any way of doing this in an automatic way?

Because p.save only saves child objects if they are unsaved.

Fred