Safeguard dynamic access to Doctrine metadata properties

Author: derrabus

Form/DoctrineOrmTypeGuesser.php

@@ -208,7 +208,7 @@ private static function getRealClass(string $class): string
     private static function getMappingValue($mapping, string $key)
     {
         if ($mapping instanceof JoinColumnMapping) {
-            return $mapping->$key;
+            return $mapping->$key ?? null;
         }
 
         return $mapping[$key] ?? null;

PropertyInfo/DoctrineExtractor.php

@@ -314,7 +314,7 @@ private function getPhpType(string $doctrineType): ?string
     private static function getMappingValue($mapping, string $key)
     {
         if ($mapping instanceof AssociationMapping || $mapping instanceof EmbeddedClassMapping || $mapping instanceof FieldMapping || $mapping instanceof JoinColumnMapping) {
-            return $mapping->$key;
+            return $mapping->$key ?? null;
         }
 
         return $mapping[$key] ?? null;

Validator/DoctrineLoader.php

@@ -148,7 +148,7 @@ private function getExistingUniqueFields(ClassMetadata $metadata): array
     private static function getFieldMappingValue($mapping, string $key)
     {
         if ($mapping instanceof FieldMapping) {
-            return $mapping->$key;
+            return $mapping->$key ?? null;
         }
 
         return $mapping[$key] ?? null;