From 07be2dcecc5d94a6cb38c3b477d15d604b53e891 Mon Sep 17 00:00:00 2001
From: Kyle Drake <kyle@kyledrake.net>
Date: Sun, 2 Apr 2017 22:42:32 -0700
Subject: [PATCH] throw a short temp cache around excluded_actioning_site_ids

---
 models/event.rb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/models/event.rb b/models/event.rb
index 93deffd4..9e4d0b3a 100644
--- a/models/event.rb
+++ b/models/event.rb
@@ -17,7 +17,12 @@ class Event < Sequel::Model
   GLOBAL_VIEWS_SITE_CHANGE_MINIMUM = 1000
 
   def self.news_feed_default_dataset
-    excluded_actioning_site_ids = DB[%{select distinct(actioning_site_id) from events join sites on actioning_site_id=sites.id where sites.is_banned='t' or sites.is_nsfw='t' or sites.is_deleted='t'}].all.collect {|r| r[:actioning_site_id]}
+    if SimpleCache.expired?(:excluded_actioning_site_ids)
+      res = DB[%{select distinct(actioning_site_id) from events join sites on actioning_site_id=sites.id where sites.is_banned='t' or sites.is_nsfw='t' or sites.is_deleted='t'}].all.collect {|r| r[:actioning_site_id]}
+      excluded_actioning_site_ids = SimpleCache.store :excluded_actioning_site_ids, res, 10.minutes
+    else
+      excluded_actioning_site_ids = SimpleCache.get :excluded_actioning_site_ids
+    end
 
     ds = select_all(:events).
       order(:created_at.desc).