gistfile1.rb

def index
    if params[:tag]
      @posts = Post.order('updated_at desc').page(params[:page]).per(10).tagged_with(params[:tag])
    else
      #@posts = Post.paginate(:per_page => 5 ,:page => params[:page],:order =>"updated_at DESC")
      @posts = Post.order('updated_at desc').page(params[:page]).per(10)
      respond_to do |format|
        format.html
        format.js 
      end
    end
  end
  #newest post order
  def tally  #總數大於5 加總大於0
     @posts = Post.plusminus_tally.having('vote_count > 5 AND plusminus_tally > 0').page(params[:page]).per(10)
     #@posts = Post.plusminus_tally.having('vote_count > 5').page(params[:page]).per(10).reverse()
     respond_to do |format|
      format.html  {render :index}
      format.js {render :index}
    end
  end
  def feeds
    @posts = Post.order('created_at desc').page(params[:page]).per(10)
    respond_to do |format|
      format.html  {render :index}
      format.js {render :index}
    end
  end
  def videos
    @posts = Post.order('updated_at desc').page(params[:page]).per(10).tagged_with('video')
    respond_to do |format|
      format.html {render :index}
      format.js {render :index}
    end
  end