instance method
attribute_previous_change
Ruby on Rails 5.0.7.2
Since v5.0.7.2 Private — implementation detail, not part of the public APISignature
attribute_previous_change(attr)Handles *_previous_change for method_missing.
Parameters
-
attrreq
Source
# File activemodel/lib/active_model/dirty.rb, line 233
def attribute_previous_change(attr)
previous_changes[attr] if attribute_previously_changed?(attr)
end
Defined in activemodel/lib/active_model/dirty.rb line 233
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Defined in ActiveModel::Dirty