Single resource and multiple resources

Question

I have a model Whitelabel and a User has_many :whitelables

I have a custom method current_whitelabel (like authlogic or restful_auth for current_user)

I want my users to manage their whitelabels (ie: edit_whitelabels_path(id)).

But I don't want to send the whitelabel ID in params when it refers to the current_whitelabel.

So my idea is to create two resources: map.resources whitelabels and map.resource whitelabel.

But I don't like this so much. Is there any sexier way to accomplish it ?

Answer 1

In your controller action you can do this:

class WhitelabelsController < ActionController
  def edit
    @whitelabel = params[:id] ?  Whitelabel.find(params[:id]) : current_whitelabel
    redirect_to whitelabels_url unless @whitelabel
    ....
  end
  ...
end

Now rails will treat /whitelabel/edit as /whitelabel/edit/#{current_whitelabel.id} without specifying the id.

If this happens for more than one action you can do it as a before filter. Just be sure to remove all @whitelabel = Whitelable.find(params[:id]) lines from the individual actions.

class WhitelabelsController < ActionController
  before_filter :select_whitelabel, :except => [:index, :new]

  def select_whitelabel
    @whitelabel = params[:id] ?  Whitelabel.find(params[:id]) : current_whitelabel
    redirect_to whitelabels_url unless @whitelabel
  end
  ...
end

Answering the more clearly stated question in the comment: You can use a singular resource in tandem with the above code to have the effect you want.

config/routes.rb

map.resource :my_whitelabel, :controller => "whitelabels", :member => {:dashboard => :get}

Then in the whitelabels controller use the above code. This keeps things DRY by using the same controller for different paths with the same actions. The resource defines a dashboard action, so you'll have to add that to the controller too. But if you're using the before_filter version there should be no problem.

Answer 2

Ok I finally solved my problem.

Each whitelabel has his own subdomain (thanks to subdomain_fu), so I just need a single resource whitelabel in my routes to do action on my current_whitelabel and if I want to do action on others whitelabels, I just have to switch the subdomain.

Thanks EmFi for trying to answer to my strange question.