Help with RESTful named url options

I’ve found quite a few posts on the subject, but no satisfactory
answers. Maybe Rails just doesn’t support this yet.

How do I create a url with a named RESTful route that also has

I want to write this:

link_to_remote “Show Details”, {:url => item_url(@item, :details =>
1), :method => :get}

And get this:

Show Detail

Instead I get:

You have a nil object when you didn’t expect it!
The error occurred while evaluating nil.to_sym

active_support/core_ext/hash/keys.rb:27:in symbolize_keys' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/ base.rb:518:ininject’
active_support/core_ext/hash/keys.rb:26:in symbolize_keys' /usr/local/lib/ruby/gems/1.8/gems/actionpack-1.13.3/lib/action_view/ helpers/url_helper.rb:21:inurl_for’
(eval):19:in `item_url’

My best workaround has been to do:

link_to_remote “Show Details”, {:url => item_url(@item) + “?
detail=1”, :method => :get}

Which doesn’t seem like the Rails way.

I’m not using a route like: items/1;detail and a helper like:
detail_item_url(@item), because I have mutliple parameters which I can
mix and match to change the view. It creates too many custom named