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/answer.rb

Created October 25, 2016 09:36
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answer.rb
class Answer < ApplicationRecord
has_one :reply, dependent: :destroy
has_one :student, through: :replies
end
Raw
reply.rb
class Reply < ApplicationRecord
belongs_to :reply
belongs_to :student
end
Raw
student.rb
class Student < ApplicationRecord
has_many :replies, dependent: :destroy
has_many :answers, through: :replies
end
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