[Tree] The value of path source property is cast to string type for M…

…aterialized Path Tree strategy Cherry picked from 2.4.x branch. #2061
doctrine-extensions · Jan 18, 2020 · f65e418 · f65e418
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -27,6 +27,10 @@ a release.
 #### Fixed
 - Removed `null` parameter from `Doctrine\Common\Cache\Cache::save()` calls (#1996)
 
+### Tree
+#### Fixed
+- The value of path source property is cast to string type for Materialized Path Tree strategy (#2061)
+
 ## [2.4.38] - 2019-11-08
 ### Global / Shared
 #### Fixed

diff --git a/src/Tree/Strategy/AbstractMaterializedPath.php b/src/Tree/Strategy/AbstractMaterializedPath.php
@@ -244,7 +244,7 @@ public function updateNode(ObjectManager $om, $node, AdapterInterface $ea)
         $pathProp->setAccessible(true);
         $pathSourceProp = $meta->getReflectionProperty($config['path_source']);
         $pathSourceProp->setAccessible(true);
-        $path = $pathSourceProp->getValue($node);
+        $path = (string) $pathSourceProp->getValue($node);
 
         // We need to avoid the presence of the path separator in the path source
         if (strpos($path, $config['path_separator']) !== false) {