method

save_has_one_association

v4.2.9 - Show latest stable - Class: ActiveRecord::AutosaveAssociation

save_has_one_association(reflection)

private

Saves the associated record if it’s new or :autosave is enabled on the association.

In addition, it will destroy the association if it was marked for destruction with mark_for_destruction.

This all happens inside a transaction, if the Transactions module is included into ActiveRecord::Base after the AutosaveAssociation module, which it does by default.

# File activerecord/lib/active_record/autosave_association.rb, line 396
      def save_has_one_association(reflection)
        association = association_instance_get(reflection.name)
        record      = association && association.load_target

        if record && !record.destroyed?
          autosave = reflection.options[:autosave]

          if autosave && record.marked_for_destruction?
            record.destroy
          elsif autosave != false
            key = reflection.options[:primary_key] ? send(reflection.options[:primary_key]) : id

            if (autosave && record.changed_for_autosave?) || new_record? || record_changed?(reflection, record, key)
              unless reflection.through_reflection
                record[reflection.foreign_key] = key
              end

              saved = record.save(:validate => !autosave)
              raise ActiveRecord::Rollback if !saved && autosave
              saved
            end
          end
        end
      end

save_has_one_association

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