1 files changed, 9 insertions, 0 deletions
diff --git a/app/models/merge_request_reviewer.rb b/app/models/merge_request_reviewer.rb
index c4e5274f832..4a1f31a7f39 100644
--- a/app/models/merge_request_reviewer.rb
+++ b/app/models/merge_request_reviewer.rb
@@ -1,6 +1,15 @@
 # frozen_string_literal: true
 
 class MergeRequestReviewer < ApplicationRecord
+  enum state: {
+    unreviewed: 0,
+    reviewed: 1
+  }
+
+  validates :state,
+    presence: true,
+    inclusion: { in: MergeRequestReviewer.states.keys }
+
   belongs_to :merge_request
   belongs_to :reviewer, class_name: 'User', foreign_key: :user_id, inverse_of: :merge_request_reviewers
 end