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Class: ActiveRecord::Observer
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# File activerecord/lib/active_record/observer.rb, line 89 def initialize observed_classes = [ observed_class ].flatten observed_subclasses_class = observed_classes.collect {|c| c.send(:subclasses) }.flatten! (observed_classes + observed_subclasses_class).each do |klass| klass.add_observer(self) klass.send(:define_method, :after_find) unless klass.respond_to?(:after_find) end end