parameters and named url helpers

rubyonrails-talk
1

I'm struggling to understand how named_url helpers translate hashes into parameters.

I'm using RESTful routes, so I have helpers like:

trackables_url trackable_url new_trackable_url

If I pass options to trackables_url it translates them into URL parameters, but the same options don't work with the single model version of the helper.

Example, this creates a url with show_time parameters tacked on:

trackables_url :show_time => 1

but this raises an error:

trackable_url @trackable, :show_time => 1

Ryan