skill-assessment-app/app/models/answer.rb

class Answer < ApplicationRecord
  serialize :answer

  belongs_to :question
  belongs_to :candidate

  validates :candidate_id, presence: true
  validates :question_id, presence: true
  validates :answer, answer_format: true

  # Throw away attributes
  #   convenience for form manipulation
  def answer_array=(val); end

  def answer_hash=(val); end

  def answer_id=(val); end
end