From 21c0e52f5c8cae6681b04c5aa40ab1cbc0fa8c8c Mon Sep 17 00:00:00 2001
From: Joshua Dayan <josh.dayan@ej4.com>
Date: Wed, 29 Mar 2017 15:01:20 -0500
Subject: [PATCH] Fix #4 by calculating points in a single query

---
 lib/merit/models/active_record/merit/score.rb | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/merit/models/active_record/merit/score.rb b/lib/merit/models/active_record/merit/score.rb
index 99ec5d9d..0cf97879 100644
--- a/lib/merit/models/active_record/merit/score.rb
+++ b/lib/merit/models/active_record/merit/score.rb
@@ -7,7 +7,9 @@ class Score < ActiveRecord::Base
              class_name: 'Merit::Score::Point'
 
     def points
-      score_points.group(:score_id).sum(:num_points).values.first || 0
+      score_points.select('COALESCE(SUM(num_points), 0) AS num_points')
+                  .first
+                  .num_points
     end
 
     class Point < ActiveRecord::Base