Sorting by inner has_many through attribute

rubyonrails-talk
1

Hello everyone,

For this model:

class User < ActiveRecord::Base

  has_many :component_users, :dependent => :destroy   has_many :components, :through => :component_users, :conditions => ['components.active = ?',true]

  accepts_nested_attributes_for :component_users, :reject_if => lambda { |a| a[:components].blank? || a[:components] [:name].blank? }, :allow_destroy => true end

How can I sort a user.component_users by a order attribute on the Component model?

Like user.component_users.sort{|a,b| a.component.order <=> b.component.order}

Thanks

Thiago