re-added doctrine events

app/Model/Service/LibraryLimiter.php

@@ -3,9 +3,9 @@
 namespace App\Model\Service;
 
 use Doctrine\Common\EventSubscriber;
-
-//use Doctrine\DBAL\Event\ConnectionEventArgs;
-//use Doctrine\DBAL\Events;
+use Doctrine\ORM\Event\PostLoadEventArgs;
+use Doctrine\ORM\Events;
+use LengthException;
 
 /**
  * Naive implementation of library limiter that checks the size of book library
@@ -27,21 +27,21 @@ final class LibraryLimiter implements EventSubscriber
 	public function getSubscribedEvents(): array
 	{
 		return [
-			//Events::postConnect
+			Events::postLoad,
 		];
 	}
 
-	/*public function postConnect(ConnectionEventArgs $args): void
+	public function postLoad(PostLoadEventArgs $args): void
 	{
-		$schemaManager = $args->getConnection()->createSchemaManager();
+		$schemaManager = $args->getObjectManager()->getConnection()->createSchemaManager();
 
 		if ($schemaManager->tablesExist(['book']) === true) {
-			$all = $args->getConnection()->fetchAllAssociative('SELECT id FROM book');
+			$all = $args->getObjectManager()->getConnection()->fetchAllAssociative('SELECT id FROM book');
 
 			if (count($all) > self::LIBRARY_MAX_SIZE) {
 				throw new LengthException('Oops. Too many books were placed in such a small library and it collapsed.');
 			}
 		}
-	}*/
+	}
 
 }