method

_record_changed?

rails latest stable - Class: ActiveRecord::AutosaveAssociation

_record_changed?(reflection, record, key)

private

If the record is new or it has changed, returns true.

# File activerecord/lib/active_record/autosave_association.rb, line 475
      def _record_changed?(reflection, record, key)
        record.new_record? ||
          (association_foreign_key_changed?(reflection, record, key) ||
          inverse_polymorphic_association_changed?(reflection, record)) ||
          record.will_save_change_to_attribute?(reflection.foreign_key)
      end

_record_changed?

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