method

attribute_previous_change

v7.1.3.2 - Show latest stable - Class: ActiveModel::Dirty

attribute_previous_change(attr_name)

private

Dispatch target for *_previous_change attribute methods.

# File activemodel/lib/active_model/dirty.rb, line 397
      def attribute_previous_change(attr_name)
        mutations_before_last_save.change_to_attribute(attr_name.to_s)
      end

attribute_previous_change

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