# File lib/kaminari/helpers/action_view_extension.rb, line 41
    def link_to_previous_page(scope, name, options = {}, &block)
      params = options.delete(:params) || {}
      param_name = options.delete(:param_name) || Kaminari.config.param_name
      link_to_unless scope.first_page?, name, params.merge(param_name => scope.prev_page), options.reverse_merge(:rel => 'previous') do
        block.call if block
      end
    end