Update configuration.php for Sym 4.1+ and BC

PeerJ · Feb 4, 2021 · acab299 · acab299
1 parent 5515504
commit acab299
Showing 1 changed file with 8 additions and 3 deletions.
diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
@@ -21,9 +21,14 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('dpn_xml_sitemap');
-
+        $treeBuilder = new TreeBuilder('dpn_xml_sitemap');
+        if (\method_exists($treeBuilder, 'getRootNode')) {
+            $rootNode = $treeBuilder->getRootNode();
+        } else {
+            // BC layer for symfony/config 4.1 and older
+            $rootNode = $treeBuilder->root('dpn_xml_sitemap');
+        }
+
         $rootNode
             ->children()
                 ->scalarNode('http_cache')