From c018870ecda8133a30e2c23438a59e28de34a3ea Mon Sep 17 00:00:00 2001
From: Ant Zucaro <azucaro@gmail.com>
Date: Mon, 10 Feb 2014 18:32:54 -0500
Subject: [PATCH] Playing one Elo game type in the past 30 days will prevent
 rot.

---
 scripts/update_elos.sql | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/scripts/update_elos.sql b/scripts/update_elos.sql
index f724e03..bda0ae2 100644
--- a/scripts/update_elos.sql
+++ b/scripts/update_elos.sql
@@ -1,6 +1,12 @@
 begin;
-  update player_elos
+  update player_elos pe
   set elo=greatest(100, elo - ((current_date - (update_dt::date)-31)/7+1))
   where update_dt < (current_timestamp at time zone 'UTC' - interval '30 days')
+  and not exists (
+    select 1
+    from player_elos
+    where player_id = pe.player_id
+    and update_dt >= (current_timestamp at time zone 'UTC' - interval '30 days')
+  )
   and elo != 100;
 end;
-- 
2.39.2