Is there a better way to validate associated record in rails3

I am using rails3 and I have following code

class Utensil < ActiveRecord::Base
  validates_presence_of :manufac开发者_如何学Cturer_id
  belongs_to :manufacturer
end

Is that the right way to validate a belongs_to object. I have a feeling that validating id might not be the best strategy. Any alternative solution.

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What you have is just fine. If you want to validate the associated model as well, you can fo the following:

class Utensil < ActiveRecord::Base
  belongs_to :manufacturer

  validates_associated :manufacturer
  validates_presence_of :manufacturer_id
end

Hope this helps!