class method self.find_last

# File activerecord/lib/active_record/base.rb, line 1542
        def find_last(options)
          order = options[:order]

          if order
            order = reverse_sql_order(order)
          elsif !scoped?(:find, :order)
            order = "#{table_name}.#{primary_key} DESC"
          end

          if scoped?(:find, :order)
            scope = scope(:find)
            original_scoped_order = scope[:order]
            scope[:order] = reverse_sql_order(original_scoped_order)
          end

          begin
            find_initial(options.merge({ :order => order }))
          ensure
            scope[:order] = original_scoped_order if original_scoped_order
          end
        end