Question

I am writing a Ruby on Rails app and I want a method to be called every time the database is modified. Is it possible to do this without inserting a method call in every location where the database is modified?

Answer 1

I like KandadaBooggu’s answer but if you did not want to monkey with AR you might be able to do this with an Observer.

class AllObserver < ActiveRecord::Observer
  observe :model_a, :model_b

  def after_save(record)
    logger.info("CREATED #{record.class}")
  end

  def after_update(record)
    logger.info("UPDATED #{record.class}")
  end
end

Just add the models that you want to observer. In this example it will log updates to ModelA and ModelB