Rails Associations and db design for Quiz Application

Question

I am building this quiz application. I want it to be kinda sophisticated.

I have come up with this database schema. But I am really confused.. Confused about what a

Answer 1

This should do:

• Drop candidate_answers.test_question
• Drop the candidate_answers table

• Drop the test_questions table

  class Test < ActiveRecord::Base has_many :results has_many :questions end

  class Result < ActiveRecord::Base belongs_to :test belongs_to :candidate end

  class Candidate < ActiveRecord::Base has_many :results has_many :answers end

  class Answer < ActiveRecord::Base belongs_to :question belongs_to :candidate end

  class Question < ActiveRecord::Base belongs_to :test has_many :answers end

It looks like you were intending to reuse the answers for more than one question, that would be a generally bad idea.. Better clone an answer in that case.