Software Público Brasileiro

class ProductCategory < Category
  has_many :products
  has_many :consumptions
  has_many :consumers, :through => :consumptions, :source => :profile

  def tree
    children.inject([]){|all,c| all + c.tree } << self
  end

  def all_products
    Product.find(:all, :conditions => { :product_category_id => tree.map(&:id) })
  end

  def self.menu_categories(top_category, env)
    top_category ? top_category.children : top_level_for(env)
  end
end