From c182c70b8dfb8d0e9f0030b724dd6b39aeea03ce Mon Sep 17 00:00:00 2001
From: UlricQin <ulric.qin@gmail.com>
Date: Wed, 13 Jan 2021 10:10:00 +0800
Subject: [PATCH] bugfix: check node is nil

---
 src/models/node.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/models/node.go b/src/models/node.go
index 976230fb..2089e14b 100644
--- a/src/models/node.go
+++ b/src/models/node.go
@@ -643,6 +643,10 @@ func GetRelatedNidsForMon(nid int64, exclNid []int64) ([]int64, error) {
 		return nids, err
 	}
 
+	if node == nil {
+		return nids, nil
+	}
+
 	nodes, err := node.RelatedNodes()
 	if err != nil {
 		return nids, err