gistfile1.txt

class Component < ActiveRecord::Base
  belongs_to :cabinet
  belongs_to :component_model
  has_many :port, :as => :device, :extend => CreatePortFromModel
  has_many :sub_components

  def elevation
    orientation + elevation_index.to_s
  end

  named_scope :facing, lamba { |orientation| { :conditions => { :orientation => orientation } } } do
    def group_by_elevation_index
      group_by{|component| component.elevation_index - component.component_model.height + 1 }
    end
  end

  def self.front_facing
    self.facing "A"
  end

  def self.back_facing
    self.facing "AB"
  end

  def self.left_facing
    self.facing "AA"
  end

  def self.right_facing
    self.facing "AC"
  end
end