rails--rails/activerecord/test/models/member.rb

class Member < ActiveRecord::Base
  has_one :current_membership
  has_one :selected_membership
  has_one :membership
  has_one :club, :through => :current_membership
  has_one :selected_club, :through => :selected_membership, :source => :club
  has_one :favourite_club, -> { where "memberships.favourite = ?", true }, :through => :membership, :source => :club
  has_one :hairy_club, -> { where :clubs => {:name => "Moustache and Eyebrow Fancier Club"} }, :through => :membership, :source => :club
  has_one :sponsor, :as => :sponsorable
  has_one :sponsor_club, :through => :sponsor
  has_one :member_detail, :inverse_of => false
  has_one :organization, :through => :member_detail
  belongs_to :member_type

  has_many :nested_member_types, :through => :member_detail, :source => :member_type
  has_one :nested_member_type, :through => :member_detail, :source => :member_type

  has_many :nested_sponsors, :through => :sponsor_club, :source => :sponsor
  has_one :nested_sponsor, :through => :sponsor_club, :source => :sponsor

  has_many :organization_member_details, :through => :member_detail
  has_many :organization_member_details_2, :through => :organization, :source => :member_details

  has_one :club_category, :through => :club, :source => :category

  has_many :current_memberships, -> { where :favourite => true }
  has_many :clubs, :through => :current_memberships

  has_one :club_through_many, :through => :current_memberships, :source => :club

  belongs_to :admittable, polymorphic: true
  has_one :premium_club, through: :admittable
end

class SelfMember < ActiveRecord::Base
  self.table_name = "members"
  has_and_belongs_to_many :friends, :class_name => "SelfMember", :join_table => "member_friends"
end