def user_id

    if @current_user
      @current_user.id
    else
      nil
    end
  end


  def show

    @article = Article.viewable(user_id).find(params[:id])

    @blog = @article.blog
    @recentArticles = @blog.articles.published(:all, :limit=>5, :conditions=>"id!=#{@article.id}")
    @topics=@article.topics.find(:all, :limit=>5)

    respond_to do |format|
      format.html # show.html.erb
      format.xml  { render :xml => @article }
    end
  end