/ Ruby on Rails
/
method

changed_attributes

rails latest stable - Class: ActiveRecord::AttributeMethods::Dirty

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v5.1.7) is shown here.

changed_attributes()
public

No documentation available.

# File activerecord/lib/active_record/attribute_methods/dirty.rb, line 98
      def changed_attributes # :nodoc:
        # This should only be set by methods which will call changed_attributes
        # multiple times when it is known that the computed value cannot change.
        if defined?(@cached_changed_attributes)
          @cached_changed_attributes
        else
          emit_warning_if_needed("changed_attributes", "saved_changes.transform_values(&:first)")
          super.reverse_merge(mutation_tracker.changed_values).freeze
        end
      end