Note Domain Modeling

gistfile1.txt

class Note < ActiveRecord::Base
  attr_accessible :description, :sender_id, :user_recipient_id, :team_recipient_id, :tournament_recipient_id

  belongs_to :sender, class_name: "User"
  belongs_to :user_recipient, class_name: "User"
  belongs_to :team_recipient, class_name: "Team"
  belongs_to :tournament_recipient, class_name: "Tournament"
end

class User < ActiveRecord::Base
  has_many :notes, foreign_key: "sender_id", dependent: :destroy
  has_many :outgoing_notes, through: :notes, source: :user_recipient
  has_many :incoming_notes, foreign_key: "user_recipient_id",
                            class_name: "Note",
                            dependent: :destroy
  has_many :received_notes, through: :incoming_notes, source: :sender
end

class Team < ActiveRecord::Base
  has_many :incoming_notes, foreign_key: "team_recipient_id",
                            class_name: "Note",
                            dependent: :destroy
  has_many :received_notes, through: :incoming_notes, source: :sender
end

class Tournament < ActiveRecord::Base
  has_many :incoming_notes, foreign_key: "tournament_recipient_id",
                            class_name: "Note",
                            dependent: :destroy
  has_many :received_notes, through: :incoming_notes, source: :sender
end