Fix type

hofff · Sep 20, 2022 · cc8f70f · cc8f70f
1 parent 80cda9b
commit cc8f70f
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/DCA/RelationsDCABuilder.php b/src/DCA/RelationsDCABuilder.php
@@ -301,7 +301,7 @@ protected function inputFieldCallback(
 
     protected function extractAggregateKey(DataContainer $dataContainer): string
     {
-        return $dataContainer->activeRecord->{$this->config->getAggregateFieldName()};
+        return (string) $dataContainer->activeRecord->{$this->config->getAggregateFieldName()};
     }
 
     protected function getGroupTitle(string $aggregate): string