It looks like you are calling it on a Post object, where the .empty is
meant for collections/strings and such. Should the above line read,
if @posts.empty?
..

Notice the s. I'm guessing you are loading posts like:
@posts = Post.find(:all)?

if so then @posts.empty? should work just fine.

-Nick

On 2/11/06, Michael Boutros <me@[...].com>  wrote:
>  I am using:
> 
>      if @post.empty?
>         render_text "Post does not exist."
>      end
> 
>  But it gives me this error:
> 
>  NoMethodError in Posts#view
> 
>  undefined method `empty?' for #<Posts:0x39598d0>
> 
>  However, if the method list empty? apears and stuff so I am confused.
> 
>  --
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