From a24e29345dca6998bea484c2b6b2ef3dad97a13b Mon Sep 17 00:00:00 2001 From: Maximilian Grundke Date: Thu, 21 Jan 2016 14:03:42 +0100 Subject: [PATCH] Fix NaN error for exercises without scores --- app/models/exercise.rb | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/app/models/exercise.rb b/app/models/exercise.rb index 6fe198ac..658a8fb5 100644 --- a/app/models/exercise.rb +++ b/app/models/exercise.rb @@ -29,7 +29,7 @@ class Exercise < ActiveRecord::Base def average_percentage - (average_score / maximum_score * 100).round if average_score + (average_score / maximum_score * 100).round if average_score and maximum_score != 0.0 else 0 end def average_score