default-scope

I have a Rails app that allows voting on some models. In one of my models I want to change the default_scope so that objects that has the most votes is displayed first. I have tried the following in my model file: def self.default_scope order('votes_for.size DESC') end This gives me the following error: SQLite3::SQLException: no such column: votes_for.size: SELECT "solutions".* FROM "solutions" WHERE "solutions"."competition_id" = ? ORDER BY votes_for.size DESC I wonder if there is a way the change the default default sort order, what I'm doing is obviously not working. Solutions for making it

I'm using the paranoia gem to "soft-delete" records. Now I need to eager load these records, some of which might have been deleted, for an associated model. Paranoia adds this default_scope to the "paranoid" model: default_scope :conditions => { :deleted_at => nil } So in effect, I have these (simplified) models: class Product has_many :orders default_scope :conditions => { :deleted_at => nil } end class Order belongs_to :product end What I'm trying to achieve is to eager-load the products when accessing orders: Order.includes(:product) This (from How to use unscoped on associated relations in

I believe this is a bug in Rails 3. I am hoping someone here can steer me in the correct direction. The code posted below, is purely for illustration of this problem. Hopefully this does not confuse the issue. Given I have a Post model, and a Comment model. Post has_many Comments, and Comment belongs_to Post. With a default_scope set on the Post model, defining joins() and where() relations. In this case where() is dependent on joins(). Normally Posts wouldn't be dependent on Comments. Again, I just want to give a simple example. This could be any case when where() is dependent on joins().