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tiagoamaro/many_to_many_self_join.rb

Created January 13, 2015 23:38
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Rails many-to-many self-join
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many_to_many_self_join.rb
# as described in http://guides.rubyonrails.org/association_basics.html#self-joins
class User < ActiveRecord::Base
has_and_belongs_to_many :friends,
class_name: "User",
foreign_key: "this_user_id",
association_foreign_key: "other_user_id"
end
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