will paginate custom link renderer with ajax and first page and last page.rb

module PaginationHelper
  class LinkRenderer < WillPaginate::ActionView::LinkRenderer
    def link(text, target, attributes = {})
      attributes["data-remote"] = true    if @options[:remote]
      super
    end
    
    def pagination
      items = @options[:page_links] ? windowed_page_numbers : []
      items.unshift :first_page, :previous_page
      items.push :next_page, :last_page
    end
        
    # The container_attributes method must be overridden to prevent custom options being output as HTML attributes for the pagination container.
    def container_attributes
      super.except(:first_label, :last_label)
    end

    # A first_page method that handles the generation of HTML for the first page link.
    def first_page
      previous_or_next_page(current_page == 1 ? nil : 1, @options[:first_label], "first_page")
    end
    
    # A last_page method that handles the generation of HTML for the last page link.
    def last_page
      previous_or_next_page(current_page == total_pages ? nil : total_pages, @options[:last_label], "last_page")
    end
  end
end