get all products of category and child categories (rails, awesome_nested_set)

Question

having an e-commerce application under development i am trying to get my head around the following problem: I have my categories realized through the awesome_nested_set plugin.

Answer 1

There are a several ways you could improve your code, but if you're looking for all products that belong to a category and children (descendants) of the category then why you won't do it like this:

def branch_ids
  self_and_descendants.map(&:id).uniq 
end

def all_products
  Product.find(:all, :conditions => { :category_id => branch_ids } )
end

I've done some assumptions here, but I hope you get the idea.