instance method `attribute_before_last_save`

Ruby on Rails 8.0.4

Since v5.2.8.1

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_before_last_save(attr_name)

Returns the original value of an attribute before the last save.

This method is useful in after callbacks to get the original value of an attribute before the save that triggered the callbacks to run. It can be invoked as name_before_last_save instead of attribute_before_last_save("name").

Parameters

attr_name req

Source

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 108
      def attribute_before_last_save(attr_name)
        mutations_before_last_save.original_value(attr_name.to_s)
      end

Defined in activerecord/lib/active_record/attribute_methods/dirty.rb line 108 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::AttributeMethods::Dirty

Signature

Parameters