add a validation

xuorig · xuorig · commit b1407d11fbce · 2017-02-12T15:07:37.000-05:00
diff --git a/app/models/rating.rb b/app/models/rating.rb
@@ -1,4 +1,6 @@
 class Rating < ApplicationRecord
   belongs_to :user
   belongs_to :film
+
+  validates_inclusion_of :number, :in => 0..5
 end
