instance method `changed_attribute_names_to_save`

Ruby on Rails 6.1.7.10

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:

changed_attribute_names_to_save()

Returns an array of the names of any attributes that will change when the record is next saved.

Source

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 144
      def changed_attribute_names_to_save
        mutations_from_database.changed_attribute_names
      end

Defined in activerecord/lib/active_record/attribute_methods/dirty.rb line 144 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::AttributeMethods::Dirty

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