From b1b5a795c864fb421c7b3508e14fded569479042 Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sun, 9 Dec 2018 13:21:42 +0900
Subject: [PATCH] Revert "Eliminate if-statement (#3556)"

This reverts commit fb8b0c291dff0bec2aca85fda34ebff9c8c49b91.
---
 src/chart/index.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/chart/index.ts b/src/chart/index.ts
index aff30bf0fa..b59ad7602b 100644
--- a/src/chart/index.ts
+++ b/src/chart/index.ts
@@ -61,7 +61,11 @@ export default abstract class Chart<T> {
 
 	constructor(name: string, grouped = false) {
 		this.collection = db.get<Log<T>>(`chart.${name}`);
-		this.collection.createIndex({ span: -1, date: -1, group: grouped ? -1 : undefined }, { unique: true });
+		if (grouped) {
+			this.collection.createIndex({ span: -1, date: -1, group: -1 }, { unique: true });
+		} else {
+			this.collection.createIndex({ span: -1, date: -1 }, { unique: true });
+		}
 	}
 
 	@autobind