From 2d156345aea6f6daff24685ba63b9b7ae27da4a9 Mon Sep 17 00:00:00 2001
From: Faris Ansari <netchamp.faris@gmail.com>
Date: Mon, 23 Oct 2017 18:06:05 +0530
Subject: [PATCH] [minor] fallback for invalid start or end date

---
 frappe/public/js/frappe/views/calendar/calendar.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/frappe/public/js/frappe/views/calendar/calendar.js b/frappe/public/js/frappe/views/calendar/calendar.js
index 508be3bcf0..9126c4b0e3 100644
--- a/frappe/public/js/frappe/views/calendar/calendar.js
+++ b/frappe/public/js/frappe/views/calendar/calendar.js
@@ -271,6 +271,15 @@ frappe.views.Calendar = Class.extend({
 			d.start = frappe.datetime.convert_to_user_tz(d.start);
 			d.end = frappe.datetime.convert_to_user_tz(d.end);
 
+			// show event on single day if start or end date is invalid
+			if (!frappe.datetime.validate(d.start) && d.end) {
+				d.start = frappe.datetime.add_days(d.end, -1);
+			}
+
+			if (d.start && !frappe.datetime.validate(d.end)) {
+				d.end = frappe.datetime.add_days(d.start, 1);
+			}
+
 			me.fix_end_date_for_event_render(d);
 			me.prepare_colors(d);
 			return d;