From 66ced98bf564e73235b3f3b1e086ccba3a23ce9a Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Mon, 27 Aug 2018 04:50:52 +0900
Subject: [PATCH] Fix bug

---
 src/models/stats.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/models/stats.ts b/src/models/stats.ts
index 3041d3852..326bfacc8 100644
--- a/src/models/stats.ts
+++ b/src/models/stats.ts
@@ -2,7 +2,8 @@ import * as mongo from 'mongodb';
 import db from '../db/mongodb';
 
 const Stats = db.get<IStats>('stats');
-Stats.createIndex({ date: -1 }, { unique: true });
+Stats.dropIndex({ date: -1 }); // 後方互換性のため
+Stats.createIndex({ span: -1, date: -1 }, { unique: true });
 export default Stats;
 
 export interface IStats {