Method: ActiveModel::AttributeMutationTracker#changed_attribute_names

Defined in:: activemodel/lib/active_model/attribute_mutation_tracker.rb

#changed_attribute_names ⇒ `Object`



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# File 'activemodel/lib/active_model/attribute_mutation_tracker.rb', line 14

def changed_attribute_names
  attr_names.select { |attr_name| changed?(attr_name) }
end