From 5e572a168d8af05bcb1273401597605b7d59148c Mon Sep 17 00:00:00 2001
From: Kijin Sung <kijin@kijinsung.com>
Date: Wed, 16 Dec 2020 21:48:21 +0900
Subject: [PATCH] Fix #1492 error in PHP 8.0

---
 modules/addon/addon.admin.view.php | 4 ++++
 modules/addon/tpl/setup_addon.html | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/modules/addon/addon.admin.view.php b/modules/addon/addon.admin.view.php
index 78c523641..5f577ba1c 100644
--- a/modules/addon/addon.admin.view.php
+++ b/modules/addon/addon.admin.view.php
@@ -80,6 +80,10 @@ class addonAdminView extends addon
 			{
 				foreach($mid_list as $module_srl => $module)
 				{
+					if (!isset($module_categories[$module->module_category_srl]))
+					{
+						$module_categories[$module->module_category_srl] = (object)['list' => []];
+					}
 					$module_categories[$module->module_category_srl]->list[$module_srl] = $module;
 				}
 			}
diff --git a/modules/addon/tpl/setup_addon.html b/modules/addon/tpl/setup_addon.html
index 931de9db6..2f93eda6a 100644
--- a/modules/addon/tpl/setup_addon.html
+++ b/modules/addon/tpl/setup_addon.html
@@ -44,7 +44,7 @@
 	<input type="hidden" name="addon_name" value="{$addon_info->addon_name}" />
 	<input type="hidden" name="xe_validator_id" value="modules/addon/tpl/setup_addon/1" />
 
-	<block cond="count($addon_info->extra_vars)">
+	<block cond="count($addon_info->extra_vars ?: [])">
 		<block loop="$addon_info->extra_vars => $id, $var">
 			<block cond="$group != $var->group">
 				<h2 style="margin-top:50px;">{$var->group}</h2>
@@ -65,7 +65,7 @@
 			</div>
 		</block>
 	</block>
-	<div cond="!count($addon_info->extra_vars)" class="message info">
+	<div cond="!count($addon_info->extra_vars ?: [])" class="message info">
 		<p>{$lang->msg_not_exist_option}</p>
 	</div>
 </section>