Y'a pas comme un truc qui vous fait hurler là ?

 def index
   @articles = Article.find_all_by_date(*params.values_at(:year, :month, :day))
   @page_title = index_title
   @description = index_description
   @keywords = (this_blog.meta_keywords.empty?) ? "" : this_blog.meta_keywords
   
   respond_to do |format|
     format.html { render_paginated_index }
     format.atom do
       render :partial => 'articles/atom_feed', :object => @articles[0,this_blog.limit_rss_display]
     end
     format.rss do
       auto_discovery_feed(:only_path => false)
       render :partial => 'articles/rss20_feed', :object => @articles[0,this_blog.limit_rss_display]
     end
   end
 end

def render_paginated_index(on_empty = _("No posts found..."))
   return error(on_empty, :status => 200) if @articles.empty?

   @pages = Paginator.new self, @articles.size, this_blog.limit_article_display, params[:page]
   start = @pages.current.offset
   stop  = (@pages.current.next.offset - 1) rescue @articles.size
   # Why won't this work? @articles.slice!(start..stop)
   @articles = @articles.slice(start..stop)
   render :action => 'index'
 end

 # Find all articles on a certain date
 def self.find_all_by_date(year, month = nil, day = nil)
   if !year.blank?
     find_published(:all,
                    :conditions => { :published_at =>
                      time_delta(year,month,day) })
   else
     find_published(:all)
   end
 end