From ac9792c0c771fcc5f629af3a25ff9287f8327d87 Mon Sep 17 00:00:00 2001
From: Lunny Xiao <xiaolunwen@gmail.com>
Date: Fri, 12 Aug 2022 16:36:45 +0800
Subject: [PATCH] Check webhooks slice length before calling xorm (#20642)
 (#20768)

Fixes: #20641

Co-authored-by: Lauris BH <lauris@nix.lv>
Co-authored-by: John Olheiser <john.olheiser@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Gabriel Vasile <gabriel.vasile@email.com>
---
 models/webhook/webhook.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/models/webhook/webhook.go b/models/webhook/webhook.go
index 1b79a414ade..478a6a29ff2 100644
--- a/models/webhook/webhook.go
+++ b/models/webhook/webhook.go
@@ -399,6 +399,10 @@ func CreateWebhook(ctx context.Context, w *Webhook) error {
 
 // CreateWebhooks creates multiple web hooks
 func CreateWebhooks(ctx context.Context, ws []*Webhook) error {
+	// xorm returns err "no element on slice when insert" for empty slices.
+	if len(ws) == 0 {
+		return nil
+	}
 	for i := 0; i < len(ws); i++ {
 		ws[i].Type = strings.TrimSpace(ws[i].Type)
 	}