From 3f7f996e109a9f775f33613bd955faa93ec24381 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Menrath?= <andre.menrath@posteo.de>
Date: Wed, 2 Oct 2024 17:11:14 +0200
Subject: [PATCH] fix format_categories for empty term list

---
 includes/activitypub/transformer/class-event.php | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/includes/activitypub/transformer/class-event.php b/includes/activitypub/transformer/class-event.php
index 13855b0..7793650 100644
--- a/includes/activitypub/transformer/class-event.php
+++ b/includes/activitypub/transformer/class-event.php
@@ -226,8 +226,10 @@ abstract class Event extends Post {
 
 		// Add all category terms.
 		$terms = \get_the_terms( $this->wp_object, $this->wp_taxonomy );
-		foreach ( $terms as $term ) {
-			$categories[] = $term->name;
+		if ( $terms && ! is_wp_error( $terms ) ) {
+			foreach ( $terms as $term ) {
+				$categories[] = $term->name;
+			}
 		}
 
 		if ( ! empty( $categories ) ) {