From abdf04516a1340019099053f67cd04318e6c6fc8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9o=20FIDRY?= <theo.fidry@gmail.com>
Date: Sat, 28 Oct 2017 21:24:57 +0100
Subject: [PATCH] Calculate metadata calculation lazily

Closes #53
---
 src/Bridge/Doctrine/Persister/ObjectManagerPersister.php | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/Bridge/Doctrine/Persister/ObjectManagerPersister.php b/src/Bridge/Doctrine/Persister/ObjectManagerPersister.php
index 2c52f5dd..70a87dfe 100644
--- a/src/Bridge/Doctrine/Persister/ObjectManagerPersister.php
+++ b/src/Bridge/Doctrine/Persister/ObjectManagerPersister.php
@@ -32,14 +32,13 @@
     private $objectManager;
 
     /**
-     * @var array Values are FQCN of persistable objects
+     * @var array|null Values are FQCN of persistable objects
      */
     private $persistableClasses;
 
     public function __construct(ObjectManager $manager)
     {
         $this->objectManager = $manager;
-        $this->persistableClasses = array_flip($this->getPersistableClasses($manager));
     }
 
     /**
@@ -47,6 +46,10 @@ public function __construct(ObjectManager $manager)
      */
     public function persist($object)
     {
+        if (null === $this->persistableClasses) {
+            $this->persistableClasses = array_flip($this->getPersistableClasses($this->objectManager));
+        }
+
         if (isset($this->persistableClasses[get_class($object)])) {
             $this->objectManager->persist($object);
         }