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_many :tenant_memberships
  has_many :tenant_clubs, through: :tenant_memberships, class_name: "Club", source: :club

  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