Friendly id in nested model

Question

I'm using friendly_id to generate URLs on my rails application.

I have to following model organization :

Ad :

class Ad < ActiveRecord::Base
 belongs_to :area
 ...

Area :

class Area < ActiveRecord::Base
 has_many :ads
 validates :name
 ...

And the following function in Ad model to generate the URL for each Ad :

friendly_id :title_and_title, use: :slugged 

def title_and_title
 "classified ads france #{title}"
end

What I'd like to do is to add the area name in the URL. How could I do that ?

Thanks

Answer 1

Try:

def title_and_title
  self.area.name
end

To get the name for it's parent.