# File lib/tapkit/access/sql.rb, line 159
                def add_order( sort_ordering )
                        attr = @entity.attribute sort_ordering.key
                        name = sql_for_attribute attr

                        case sort_ordering.symbol
                        when SortOrdering::ASC
                                ordering = 'ASC'
                        when SortOrdering::DESC
                                ordering = 'DESC'
                        when SortOrdering::CI_ASC
                                ordering = 'ASC'
                                name = "UPPER(#{name})"
                        when SortOrdering::CI_DESC
                                ordering = 'DESC'
                                name = "UPPER(#{name})"
                        end

                        if @order_by_string then
                                @order_by_string << ", #{name} #{ordering}"
                        else
                                @order_by_string = "#{name} #{ordering}"
                        end
                end