Hi,
you guyes are doing what I want to implement soon. So I had some
thoughts about an activity log. Pretty sure polymorphic associations
are a good choice. To keep the rest clean from logging code and the
logging flexible, I thought about using an observer, like

class ActivityObserver < ActiveRecord::Observer
  observe :model_2_observe_01, model_2_observe_2 #, ...

  def after_save(record)
    activity = Activity.new(record)
    activity.save
  end
end

Should do it. I just wonder if Rails ensures ACID behavoir for
observers, anyone knows?

Cheers,
Chris

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