Ember polymorphic associations

gistfile1.rb

# doctor.rb
class Doctor < ActiveRecord::Base
  has_one :user, as: :profile
  has_and_belongs_to_many :patients
end

# patient.rb
class Patient < ActiveRecord::Base
  has_one :user, as: :profile
  has_and_belongs_to_many :doctors
end

# user.rb
class User < ActiveRecord::Base
  belongs_to :profile, polymorphic: true 
end