mcfearsome (owner)

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gist: 156915 by anonymous

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  • 8a838e Mon Jul 27 21:08:34 -0700 2009
gist: 156922 Download_button fork
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# == Schema Information
#
# Table name: tracks
#
#  id         :integer(4)      not null, primary key
#  title      :string(128)
#  album      :string(128)
#  artist     :string(128)
#  bitrate    :integer(4)
#  playcount  :integer(4)
#  key        :string(12)
#  audio_id   :string(512)
#  bpm        :integer(4)
#  ranking    :integer(4)
#  filename   :string(256)
#  created_at :datetime
#  updated_at :datetime
#
 
class Track < ActiveRecord::Base
  has_many :pairs
  has_many :tracks,
    :through => :pairs,
    :after_add => :create_reverse_association,
    :after_remove => :remove_reverse_association
  has_many :partners,
    :through => :pairs,
    :after_add => :create_reverse_association,
    :after_remove => :remove_reverse_association
  has_many :master_pairs,
    :through => :pairs
    
    
  def create_reverse_association(partner_track)
    unless partner_track.partners.include?(self)
      partner_track.partners << self
    end
  end
  def remove_reverse_association(partner_track)
    partner_track.partners.delete(self) if partner_track.partners.include?(self)
  end
end