add_order!

# File activerecord/lib/active_record/base.rb, line 1124
        def add_order!(sql, order, scope = :auto)
          scope = scope(:find) if :auto == scope
          scoped_order = scope[:order] if scope
          if order
            sql << " ORDER BY #{order}"
            sql << ", #{scoped_order}" if scoped_order
          else
            sql << " ORDER BY #{scoped_order}" if scoped_order
          end
        end