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

# frozen_string_literal: true
class Quiz < ApplicationRecord
  has_many :questions, -> { order(:sort) }
  has_many :candidates
  has_many :reviewer_to_quizzes
  has_many :reviewers, through: :reviewer_to_quizzes, source: :user

  validates :name, presence: true, uniqueness: true
  validates :dept, presence: true
  validates :unit, presence: true

  class << self
    def all_active
      Quiz.joins(:questions).distinct
    end
  end
end