memoize service code prefix to prevent constant reassignment

coroutine · Jun 2, 2015 · 53457ed · 53457ed
1 parent 59c84a4
commit 53457ed
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/app/models/spree/calculator/shipping/usps/base.rb b/app/models/spree/calculator/shipping/usps/base.rb
@@ -3,7 +3,7 @@ module Calculator::Shipping
     module Usps
       class Base < Spree::Calculator::Shipping::ActiveShipping::Base
 
-        SERVICE_CODE_PREFIX = {
+        SERVICE_CODE_PREFIX ||= {
           :international => 'intl',
           :domestic      => 'dom'
         }