Confused about routes setup -- Rails 3.1

Question

I think I'm running across a conflict due to names:

Two models: store coupon

Url needed that will display coupons: http://localhost/coupons/:store_name ('coupons' is written in the url, not replaced with anything)

Controller name: coupons_controller

Here is what I have in my routes right now:

match '/coupons/:store_name' => 'coupons#index', :as => :stores

When I try to do redirect stores_path(store) in another controller, I get this error:

No route matches {:controller=>"coupons"}

Any clues? I'm new to rails so I bet it's a silly mistake.

UPDATE

Is there a central place to tell the dynamic _path() functions to use a specific url structure? i.e. Instead of having to do the following everywhere:

redirect_to stores_path(:store_name => store.store_name)

Instead using just:

redirect_to stores_path(store)

Answer 1

redirect_to stores_path(:store_name => store)

should work if it doesn't (cannot confirm right now), you should be able to do the (little hacky)

redirect_to stores_path+"?store_name=yourstorename"

Doing it the restful way, you should probably have something like this (in your routes):

resources :stores do
  resources :coupons # this will give you e.g. /stores/:store_id/coupons for the coupons#index action
end

If you want to use the store name instead of the ID, just search SO for using "slug" or have a look here: getting a 'name' based URL in RESTful routes instead of an id based url or ID + Slug name in URL in Rails (like in StackOverflow)

Answer 2

yes you can, redefine to_param in your model:

class Store < ...
  def to_param
    store_name
  end
end