From 5984f7e14926df020430a6be2292e6070cfd447d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Trung=20Le=CC=82?= <joneslee85@gmail.com>
Date: Thu, 19 Jan 2012 17:42:39 +1100
Subject: [PATCH] Refactor Product recalculate_count_on_hand method

---
 core/app/models/spree/product.rb | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/core/app/models/spree/product.rb b/core/app/models/spree/product.rb
index 3a5b57dc954..fa563bfa926 100644
--- a/core/app/models/spree/product.rb
+++ b/core/app/models/spree/product.rb
@@ -180,8 +180,7 @@ def self.like_any(fields, values)
     private
       def recalculate_count_on_hand
         product_count_on_hand = has_variants? ?
-          variants.inject(0) { |acc, v| acc + v.count_on_hand } :
-          (master ? master.count_on_hand : 0)
+          variants.sum(:count_on_hand) : (master ? master.count_on_hand : 0)
         self.count_on_hand = product_count_on_hand
       end