From c4366124c7e600800d48ce47b3a3b856b33c489a Mon Sep 17 00:00:00 2001
From: Marco Pivetta <ocramius@gmail.com>
Date: Tue, 13 Jan 2015 14:45:13 +0100
Subject: [PATCH] #1246 DDC-3487 - removed unused assignment, direct return
 instead

---
 lib/Doctrine/ORM/Persisters/ManyToManyPersister.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
index eff275359..17c98b90b 100644
--- a/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
+++ b/lib/Doctrine/ORM/Persisters/ManyToManyPersister.php
@@ -289,8 +289,9 @@ class ManyToManyPersister extends AbstractCollectionPersister
             }
         }
 
-        $sql = implode(' AND ', $filterClauses);
-        return $sql ? '(' . $sql . ')' : '';
+        return $filterClauses
+            ? '(' . implode(' AND ', $filterClauses) . ')'
+            : '';
     }
 
     /**