From 9de26d44da61f15d1be8762416ddd1f36a1baaa2 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Mon, 8 Feb 2021 11:47:41 +0300
Subject: [PATCH] af_psql_trgm: fix warning

---
 plugins/af_psql_trgm/init.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/af_psql_trgm/init.php b/plugins/af_psql_trgm/init.php
index a38386d5b..faacf2da7 100644
--- a/plugins/af_psql_trgm/init.php
+++ b/plugins/af_psql_trgm/init.php
@@ -238,7 +238,7 @@ class Af_Psql_Trgm extends Plugin {
 	function hook_prefs_save_feed($feed_id) {
 		$enabled_feeds = $this->get_stored_array("enabled_feeds");
 
-		$enable = checkbox_to_sql_bool($_POST["trgm_similarity_enabled"]);
+		$enable = checkbox_to_sql_bool($_POST["trgm_similarity_enabled"] ?? "");
 		$key = array_search($feed_id, $enabled_feeds);
 
 		if ($enable) {