From 7c69fa8cfd57bfb0c50d426378eafbeeacdfea3d Mon Sep 17 00:00:00 2001
From: Guo Xiang Tan <tgx_world@hotmail.com>
Date: Tue, 21 Aug 2018 10:25:06 +0800
Subject: [PATCH] PERF: Memoize `SkippedEmailLog.reason_types`.

---
 app/models/skipped_email_log.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/app/models/skipped_email_log.rb b/app/models/skipped_email_log.rb
index ee07aac8dcc..dea77b69327 100644
--- a/app/models/skipped_email_log.rb
+++ b/app/models/skipped_email_log.rb
@@ -12,7 +12,7 @@ class SkippedEmailLog < ActiveRecord::Base
   validate :ensure_valid_reason_type
 
   def self.reason_types
-    Enum.new(
+    @types ||= Enum.new(
       custom: 1,
       exceeded_emails_limit: 2,
       exceeded_bounces_limit: 3,