From 91e8711fdf83e6b94ef4caea109548dd160c8bd6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Jan=20B=C3=B6hmer?= <mail@jan-boehmer.de>
Date: Mon, 4 Mar 2024 22:10:28 +0100
Subject: [PATCH] Fixed problems with dynamically adding structural entities,
 when the arrows had spaces around them

Related to #538
---
 .../Type/Helper/StructuralEntityChoiceLoader.php  | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/Form/Type/Helper/StructuralEntityChoiceLoader.php b/src/Form/Type/Helper/StructuralEntityChoiceLoader.php
index e668dfce..a527a44f 100644
--- a/src/Form/Type/Helper/StructuralEntityChoiceLoader.php
+++ b/src/Form/Type/Helper/StructuralEntityChoiceLoader.php
@@ -156,5 +156,20 @@ class StructuralEntityChoiceLoader extends AbstractChoiceLoader
         return $this;
     }
 
+    protected function doLoadChoicesForValues(array $values, ?callable $value): array
+    {
+        // Normalize the data (remove whitespaces around the arrow sign) and leading/trailing whitespaces
+        // This is required so that the value that is generated for an new entity based on its name structure is
+        // the same as the value that is generated for the same entity after it is persisted.
+        // Otherwise, errors occurs that the element could not be found.
+        foreach ($values as &$data) {
+            $data = trim($data);
+            $data = preg_replace('/\s*->\s*/', '->', $data);
+        }
+        unset ($data);
+
+        return $this->loadChoiceList($value)->getChoicesForValues($values);
+    }
+
 
 }