fixed up a reviewer to reviewee association

app/models/user.rb

@@ -6,6 +6,8 @@ class User < ApplicationRecord
   has_many :quizzes, through: :reviewer_to_quizzes
   has_many :votes, class_name: 'ReviewerVote'
 
+  has_many :reviewees, through: :quizzes, source: :candidates
+
   validates :email, presence: true, uniqueness: true
   validates :name, presence: true
   validates :role, presence: true