instance method `attribute_previous_change`

Ruby on Rails 8.0.4

Since v5.2.8.1 Private

Available in: v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

attribute_previous_change(attr_name)

Dispatch target for *_previous_change attribute methods.

Parameters

attr_name req

Source

# File activemodel/lib/active_model/dirty.rb, line 404
      def attribute_previous_change(attr_name)
        mutations_before_last_save.change_to_attribute(attr_name.to_s)
      end

Defined in activemodel/lib/active_model/dirty.rb line 404 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveModel::Dirty

Signature

Parameters