With a singular resource no id is required for show.

<%= link_to 'ca', home_path %>

If you need to pass parameters a hash will work.

<%= link_to 'ca', home_path(:id => 2) %>

Aaron

On Feb 8, 8:42 pm, Zhenning Guan <rails-mailing-l...@andreas-s.net>
wrote:
> routes.rb
> ==
> map.resources :entries
> map.resource :home
> ==
>
> in entries show view
> <%= link_to 'ca', home_path(2) %>
>
> it has a error:
> You have a nil object when you didn't expect it!
> The error occurred while evaluating nil.to_sym
>
> so, what's going go here?
> --
> Posted viahttp://www.ruby-forum.com/.
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