From edaeda8dac821f85f056b9e2de2cb458e9757a72 Mon Sep 17 00:00:00 2001
From: eSilverStrike <eSilverStrike@users.noreply.github.com>
Date: Thu, 24 Sep 2020 11:10:47 -0400
Subject: [PATCH] Fix for inLanguage Structured Data for single language sites.

Fir for #1075
---
 system/classes/structureddata.class.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/system/classes/structureddata.class.php b/system/classes/structureddata.class.php
index ac78759f6..b0591d59d 100644
--- a/system/classes/structureddata.class.php
+++ b/system/classes/structureddata.class.php
@@ -204,7 +204,7 @@ private function create_name($type, $id)
      */
     public function add_type($type, $id, $sd_type, $properties = array(), $attributes = array(), &$data = null)
     {
-        global $_CONF;
+        global $_CONF, $LANG_ISO639_1;
 
         // Create structured data name
         $sd_name = $this->create_name($type, $id);
@@ -253,7 +253,7 @@ public function add_type($type, $id, $sd_type, $properties = array(), $attribute
                             }
                             if (empty($lang_id)) {
                                 // Assume default language of site
-                                $lang_id = COM_getLanguageId($_CONF['language_site_default']);
+                                $lang_id = $LANG_ISO639_1;
                             }
                             $data['inLanguage'] = $lang_id;
                             break;