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#5271 ✓resolved
Jakub Kuźma

Touch does not propagate anymore

Reported by Jakub Kuźma | August 2nd, 2010 @ 08:36 AM | in 3.0.2

Since touch method has changed significantly, there no possibility to do something like this anymore:

class FirstModel < ActiveRecord::Base


class SecondModel < ActiveRecord::Base
  belongs_to :first_model, :touch => true

class ThirdModel < ActiveRecord::Base
  belongs_to :second_model, :touch => true

m = ThirdModel.first
m.touch # updates m record only, doesn't execute callbacks

m.attributes = { ... }! # updates m and m.second_model only

I think it was a really useful feature - I used it for caching or versioning several times. Is there any reason (apart from higher performance) to do it using update_attribute instead of saving the model?

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