ruby on rails - Scope associated models by "created_at" -

I have three models: users, products and ownership One is owned by product_id: integer and a user_id: integer . I want to give my products the scope by created_at DESC .

App / model / product.rb

 . . Default_scope - & gt; {Order ('products.created_at DESC')}. .   
 But when I do  user.owned_products , then it has not been ordered as  created_at DESC . How can I do that? Will I add an opportunity to my user model?  
 Here is a connection between my users and products:  
  App / model / user.rb   
 . . . Has_many: is proprietary has_many: own_products, through :: proprietorship, source :: product. .    
 
 
 To set an order on products owned by a user, You can specify. For example:  
  has_many: own_products, via :: Ownership, Source :: Products, Order: "created_at DESC"