class Segment < ActiveRecord::Base
  has_many :parent_seglinks, :class_name => 'Segmentlink', :foreign_key => 'parent_seg_id'
  has_many :children, :through => :parent_seglinks, :order => 'name'

  has_many :child_seglinks, :class_name => 'Segmentlink', :foreign_key => 'child_seg_id'
  has_many :parents, :through => :child_seglinks
end