method

attribute_previously_changed?

v8.1.1 - Show latest stable - Class: ActiveModel::Dirty

attribute_previously_changed?(attr_name, **options)

public

Dispatch target for {*_previously_changed?}[rdoc-ref:#*_previously_changed?] attribute methods.

# File activemodel/lib/active_model/dirty.rb, line 310
    def attribute_previously_changed?(attr_name, **options)
      mutations_before_last_save.changed?(attr_name.to_s, **options)
    end

attribute_previously_changed?

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