universal · October 25, 2016 09:40
diff --git a/answer.rb b/answer.rb
 class Answer < ApplicationRecord
  belongs_to :question
  belongs_to :student
 end
diff --git a/question.rb b/question.rb
 class Question < ApplicationRecord
  has_many :answers
  has_many :students, through: :answers
 end
diff --git a/student.rb b/student.rb
 class Student < ApplicationRecord
  has_many :answers
  has_many :questions, through: :answers
 end
	class Answer < ApplicationRecord
	belongs_to :question
	belongs_to :student
	end
	class Question < ApplicationRecord
	has_many :answers
	has_many :students, through: :answers
	end
	class Student < ApplicationRecord
	has_many :answers
	has_many :questions, through: :answers
	end