From 715d365a5e776207e1dddac7e5ccc50aad5621f1 Mon Sep 17 00:00:00 2001
From: David King <imkingdavid@gmail.com>
Date: Sat, 23 May 2015 17:06:25 -0400
Subject: [PATCH] [ticket/13733] Only use migration classes that extension the
 base migration class.

PHPBB3-13733
---
 phpBB/phpbb/extension/base.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/phpBB/phpbb/extension/base.php b/phpBB/phpbb/extension/base.php
index 5bb530bad4..4bf19b37ed 100644
--- a/phpBB/phpbb/extension/base.php
+++ b/phpBB/phpbb/extension/base.php
@@ -137,6 +137,14 @@ class base implements \phpbb\extension\extension_interface
 
 		$migrations = $this->extension_finder->get_classes_from_files($migrations);
 
+		foreach ($migrations as $key => $migration)
+		{
+			$reflector = new \ReflectionClass($migration);
+			if (!$reflector->isSubclassOf('\phpbb\db\migration\migration')) {
+				unset($migrations[$key]);
+			}
+		}
+
 		return $migrations;
 	}
 }