From 1751b89dd10de15826a5d1641a631469f6df23be Mon Sep 17 00:00:00 2001
From: Mondane <mondane.woodworker@gmail.com>
Date: Wed, 15 May 2019 12:41:17 +0200
Subject: [PATCH] Create TreeBuilder with root defined. (#44)

* Create TreeBuilder with root defined.

Fix for 'A tree builder without a root node is deprecated since Symfony 4.2 and will not be supported anymore in 5.0.'

* Add support for symfony < 4.2

The BC layer is taken from https://github.com/KnpLabs/KnpPaginatorBundle/commit/740b876d61b46de767e457b8b0f0850f3f323dea#diff-850942b3ba24ab03a40aaa81b6152852
---
 DependencyInjection/Configuration.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index cbf4687..fe5fdb0 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -20,8 +20,9 @@ class Configuration implements ConfigurationInterface
      */
     public function getConfigTreeBuilder()
     {
-        $treeBuilder = new TreeBuilder();
-        $rootNode = $treeBuilder->root('apy_breadcrumb_trail');
+        $treeBuilder = new TreeBuilder('apy_breadcrumb_trail');
+        // BC layer for symfony/config < 4.2
+        $rootNode = method_exists($treeBuilder, 'getRootNode') ? $treeBuilder->getRootNode() : $treeBuilder->root('apy_breadcrumb_trail');
 
         $rootNode
             ->children()