Resources, Modules, and Nesting (URL Helper errors)

rubyonrails-talk
1

Hi,

I am trying to create REST routes non-standard setup. The rest url helpers give an error when I try to use a module controller for a nested resource.

Works map.resources :bar, :controller => 'module/bar'

Works map.resources :foos do |foo|     foo.resources :bar end

Doesn't work (url helpers broken) map.resources :foos do |foo|     foo.resources :bar, :controller => 'module/bar' end

The URL helper error is... ActionView::TemplateError (bar_url failed to generate from {:action=>"index", :controller=>"module/bar", :foo_id=>"1"}, expected: {:action=>"index", :controller=>"module/bar"}, diff: {:foo_id=>"1"})

Anybody have any suggestions on what is wrong? Is it just a limitation or feature of rest routes?

Thanks, Stephanie

2

Hey,

could be a pluralization issue:

map.resources :foos do |foo|    map.resources :bars, :controller => 'module/bar' end

note I said :bars not :bar

HTH, Trevor

3

Hi Trever,

Thanks for the reply. Sorry for the typo. My email should say bars (a typo in translation to a question).

map.resources :bars, :controller => 'module/bars

My code actually did have the right pluralization. I copied the code out of the nesting and tested it unnested. All of the helpers worked with a module resource it isn't nested.

-Stephanie

'

4

Hey Stephanie,

interesting...

to be honest I'm not even trying it out with a controller inside a
module because the error you're getting seems to be coming from the
url_helpers, which don't care about controllers as such.

So, at the risk of sending you on a wild goose chase, I'll make a guess:

I'm betting you've got "map.resources :bars" in more than one place
in your routes.rb - am I right?

Trevor

5

Thanks for trying to track this down. I have no other references a route.

However, in my controllers folder I do have a

app/controllers/bars_controller.rb app/controllers/foo/bars_controller.rb (this is subclassed from controllers/bars_controller.rb)

Could this be causing the problem?

-Stephanie

6

I tried changing the super controller to another name. That way the only bars controller would be foo/bars_controller.rb. This still gave me the same URL helper problems as described above.

I am back to suspecting is modules + nested resources is the problem???

-Stephanie

7

Stephanie,

I'm confident that the names of your controllers isn't the source of
the problem - I can use utterly bogus controller names (and modules)
in map.resources calls and it has no effect on url helpers.

Is this something as simple as that you're not actually passing all
the required information to the url helpers for your nested
resource? As in:

bar_url('a_foo', 'a_bar') #=> http//host.com/foos/a_foo/bars/a_bar

Trevor