From 60dd3ae53eafd32123c64cbc86826e294c89acb1 Mon Sep 17 00:00:00 2001
From: Maxime Beauchemin <maximebeauchemin@gmail.com>
Date: Wed, 3 Apr 2019 15:02:29 -0700
Subject: [PATCH] [filter_box] allow empty filters list

in some cases, people want a time filter only on filter box, without
specifying dimensions (filters), this allows that
---
 superset/assets/src/explore/controls.jsx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/superset/assets/src/explore/controls.jsx b/superset/assets/src/explore/controls.jsx
index c72348a091f4..2ccc0b8a6916 100644
--- a/superset/assets/src/explore/controls.jsx
+++ b/superset/assets/src/explore/controls.jsx
@@ -2382,7 +2382,7 @@ export const controls = {
     type: 'CollectionControl',
     label: 'Filters',
     description: t('Filter configuration for the filter box'),
-    validators: [v.nonEmpty],
+    validators: [],
     controlName: 'FilterBoxItemControl',
     mapStateToProps: ({ datasource }) => ({ datasource }),
   },