register event listeners depending on the installed packages

symfony · Jun 2, 2020 · f61b009 · f61b009
1 parent e5b5d9e
commit f61b009
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Showing 2 changed files with 15 additions and 4 deletions.
diff --git a/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php b/src/Symfony/Bridge/Doctrine/SchemaListener/MessengerTransportDoctrineSchemaSubscriber.php
@@ -89,9 +89,16 @@ public function onSchemaCreateTable(SchemaCreateTableEventArgs $event): void
 
     public function getSubscribedEvents(): array
     {
-        return [
-            ToolEvents::postGenerateSchema,
-            Events::onSchemaCreateTable,
-        ];
+        $subscribedEvents = [];
+
+        if (class_exists(ToolEvents::class)) {
+            $subscribedEvents[] = ToolEvents::postGenerateSchema;
+        }
+
+        if (class_exists(Events::class)) {
+            $subscribedEvents[] = Events::onSchemaCreateTable;
+        }
+
+        return $subscribedEvents;
     }
 }
diff --git a/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php b/src/Symfony/Bridge/Doctrine/SchemaListener/PdoCacheAdapterDoctrineSchemaSubscriber.php
@@ -43,6 +43,10 @@ public function postGenerateSchema(GenerateSchemaEventArgs $event): void
 
     public function getSubscribedEvents(): array
     {
+        if (!class_exists(ToolEvents::class)) {
+            return [];
+        }
+
         return [
             ToolEvents::postGenerateSchema,
         ];