padding=

# File actionpack/lib/action_controller/pagination.rb, line 376
        def padding=(padding)
          @padding = padding < 0 ? 0 : padding
          # Find the beginning and end pages of the window
          @first = @paginator.has_page_number?(@page.number - @padding) ?
            @paginator[@page.number - @padding] : @paginator.first
          @last =  @paginator.has_page_number?(@page.number + @padding) ?
            @paginator[@page.number + @padding] : @paginator.last
        end