From af65d2044496cb1676b2d3011aac2956ad584c5a Mon Sep 17 00:00:00 2001
From: Tom Hacohen <tom@stosb.com>
Date: Tue, 14 Jan 2020 21:24:41 +0200
Subject: [PATCH] rrule: handle empty/undefined values

---
 src/components/EventEdit.tsx | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/components/EventEdit.tsx b/src/components/EventEdit.tsx
index bd3c6d8..8f55398 100644
--- a/src/components/EventEdit.tsx
+++ b/src/components/EventEdit.tsx
@@ -220,7 +220,16 @@ class EventEdit extends React.PureComponent<PropsType> {
       }
     }
     if (this.state.rrule) {
-      event.component.updatePropertyWithValue('rrule', new ICAL.Recur(this.state.rrule!));
+      const rruleData: ICAL.RecurData = {};
+      for (const key of Object.keys(this.state.rrule)) {
+        const value = this.state.rrule[key];
+        if ((value === undefined) || (value?.length === 0)) {
+          continue;
+        }
+
+        rruleData[key] = value;
+      }
+      event.component.updatePropertyWithValue('rrule', new ICAL.Recur(rruleData));
     }
 
     event.component.updatePropertyWithValue('last-modified', ICAL.Time.now());