Is there a possibility in an action to get the parent controller for which the nested resource is called? for instance if I have the following in my routes.rb:
map.resources :user do |users| users.resources :logos end
map.resources :pic do |pics| pics.resources :logos end
How easy would it be to get the parent? for instance I could call the following 2 URLs: http://localhost:3000/pics/#\{pic\_id\}/logos/\#\{logo\_id\} and http://localhost:3000/users/#\{user\_id\}/logos/\#\{logo\_id\}
Can I know which parent I am currently in?
Further explanations follows:
The logo class is a polymorphic class defined as follow:
class Pic < ActiveRecord::Base has_one :logo, :as => :logoable end
class User < ActiveRecord::Base has_one :logo, :as => :logoable end
class Logo < FlexImage::Model belongs_to :logoable, :polymorphic => true end
Now in my logo controller, I want to show the correct logo for the correct parent controller. The URL would look something like:
http://localhost:3000/pics/#\{pic\_id\}/logos/\#\{size\}
Or
http://localhost:3000/users/#\{user\_id\}/logos/\#\{size\}
in my show action in the logo controller I have something like:
logo = Logo.find(:first, :conditions => {:logoable_type => ..., :logoable_id => ...})
logoable_type is either User or Pic. However, I can not see how to get that value easily. I could play around with the param hash as it will return either pic_id or user_id. Is there any simpler way to know which parent the nested ressource is called from?
The above to follow DRY. Is there a way to map back from the action to the parent controller?
I probably need a bit of REST vocabulary but hopefully it is clear enough.
Regards, Carl