diff --git a/lib/classes/patch/320alpha1a.php b/lib/classes/patch/320alpha1a.php
index b50520f006..607a442a0c 100644
--- a/lib/classes/patch/320alpha1a.php
+++ b/lib/classes/patch/320alpha1a.php
@@ -57,7 +57,7 @@ class patch_320alpha1a implements patchInterface
     public function apply(base $databox, Application $app)
     {
         $sql = 'UPDATE record SET parent_record_id = "1"
-                            WHERE parent_record_id != "0"';
+                WHERE parent_record_id != "0"';
         $stmt = $databox->get_connection()->prepare($sql);
         $stmt->execute();
         $stmt->closeCursor();
diff --git a/lib/classes/patch/320alpha1b.php b/lib/classes/patch/320alpha1b.php
index 051e23f804..bebc0481b9 100644
--- a/lib/classes/patch/320alpha1b.php
+++ b/lib/classes/patch/320alpha1b.php
@@ -56,12 +56,13 @@ class patch_320alpha1b implements patchInterface
     public function apply(base $appbox, Application $app)
     {
         $sql = 'REPLACE INTO records_rights
-                        (SELECT null as id, usr_id, b.sbas_id, record_id, "1" as document
-                            , null as preview, "push" as `case`, pushFrom as pusher_usr_id
-                            FROM sselcont c, ssel s, bas b
-                            WHERE c.ssel_id = s.ssel_id
-                                AND b.base_id = c.base_id AND c.canHD = 1
-                         )';
+                (
+                    SELECT null as id, usr_id, b.sbas_id, record_id, "1" as document, null as preview
+                    , "push" as `case`, pushFrom as pusher_usr_id
+                    FROM sselcont c, ssel s, bas b
+                    WHERE c.ssel_id = s.ssel_id
+                    AND b.base_id = c.base_id AND c.canHD = 1
+                 )';
         $stmt = $appbox->get_connection()->prepare($sql);
         $stmt->execute();
         $stmt->closeCursor();
diff --git a/lib/classes/patch/320alpha2a.php b/lib/classes/patch/320alpha2a.php
index a67a054af4..e8c9c67da8 100644
--- a/lib/classes/patch/320alpha2a.php
+++ b/lib/classes/patch/320alpha2a.php
@@ -56,7 +56,6 @@ class patch_320alpha2a implements patchInterface
     public function apply(base $appbox, Application $app)
     {
         $sql = 'SELECT * FROM usr WHERE nonce IS NULL';
-
         $stmt = $appbox->get_connection()->prepare($sql);
         $stmt->execute();
         $rs = $stmt->fetchAll(PDO::FETCH_ASSOC);
diff --git a/lib/classes/patch/320alpha4b.php b/lib/classes/patch/320alpha4b.php
index 3f271149e8..92d55286f1 100644
--- a/lib/classes/patch/320alpha4b.php
+++ b/lib/classes/patch/320alpha4b.php
@@ -75,9 +75,8 @@ class patch_320alpha4b implements patchInterface
 
         }
 
-        $sql = 'SELECT ssel_id, usr_id, name, descript, pub_date
-                            , updater, pub_restrict, homelink
-                        FROM ssel WHERE (public = "1" or homelink="1") and migrated = 0';
+        $sql = 'SELECT ssel_id, usr_id, name, descript, pub_date, updater, pub_restrict, homelink
+                FROM ssel WHERE (public = "1" or homelink="1") and migrated = 0';
 
         $stmt = $appbox->get_connection()->prepare($sql);
         $stmt->execute();
@@ -119,7 +118,7 @@ class patch_320alpha4b implements patchInterface
             }
 
             $sql = 'SELECT sselcont_id, ssel_id, base_id, record_id
-                                FROM sselcont WHERE ssel_id = :ssel_id ORDER BY ord ASC';
+                    FROM sselcont WHERE ssel_id = :ssel_id ORDER BY ord ASC';
             $stmt = $appbox->get_connection()->prepare($sql);
             $stmt->execute([':ssel_id' => $row['ssel_id']]);
             $rs = $stmt->fetchAll(PDO::FETCH_ASSOC);
@@ -142,7 +141,7 @@ class patch_320alpha4b implements patchInterface
             $app['EM']->persist($entry);
 
             $sql = 'UPDATE ssel SET deleted = "1", migrated="1"
-                            WHERE ssel_id = :ssel_id';
+                    WHERE ssel_id = :ssel_id';
             $stmt = $appbox->get_connection()->prepare($sql);
             $stmt->execute([':ssel_id' => $row['ssel_id']]);
             $stmt->closeCursor();
diff --git a/lib/classes/patch/320alpha5a.php b/lib/classes/patch/320alpha5a.php
index 38d516e2a3..2ed2a46ddb 100644
--- a/lib/classes/patch/320alpha5a.php
+++ b/lib/classes/patch/320alpha5a.php
@@ -63,7 +63,7 @@ class patch_320alpha5a implements patchInterface
         $stmt->closeCursor();
 
         $sql = 'UPDATE basusr SET order_master="1"
-                        WHERE base_id = :base_id AND usr_id = :usr_id';
+                WHERE base_id = :base_id AND usr_id = :usr_id';
         $stmt = $appbox->get_connection()->prepare($sql);
 
         foreach ($rs as $row) {
diff --git a/lib/classes/patch/320alpha6a.php b/lib/classes/patch/320alpha6a.php
index 878b40f6de..9261b936c8 100644
--- a/lib/classes/patch/320alpha6a.php
+++ b/lib/classes/patch/320alpha6a.php
@@ -56,15 +56,15 @@ class patch_320alpha6a implements patchInterface
     public function apply(base $databox, Application $app)
     {
         $sql = 'UPDATE record r, subdef s
-                            SET r.mime = s.mime
-                            WHERE r.record_id = s.record_id AND s.name="document"';
+                SET r.mime = s.mime
+                WHERE r.record_id = s.record_id AND s.name="document"';
         $stmt = $databox->get_connection()->prepare($sql);
         $stmt->execute();
         $stmt->closeCursor();
 
         $sql = 'UPDATE subdef s, record r
-                            SET s.updated_on = r.moddate, s.created_on = r.credate
-                            WHERE s.record_id = r.record_id';
+                SET s.updated_on = r.moddate, s.created_on = r.credate
+                WHERE s.record_id = r.record_id';
         $stmt = $databox->get_connection()->prepare($sql);
         $stmt->execute();
         $stmt->closeCursor();
diff --git a/lib/classes/patch/360alpha2a.php b/lib/classes/patch/360alpha2a.php
index dd8893ff69..6470be88a8 100644
--- a/lib/classes/patch/360alpha2a.php
+++ b/lib/classes/patch/360alpha2a.php
@@ -57,7 +57,8 @@ class patch_360alpha2a implements patchInterface
     {
 
         $sql = 'UPDATE usr SET usr_mail = NULL
-                        WHERE usr_mail IS NOT NULL AND usr_login LIKE "(#deleted%"';
+                WHERE usr_mail IS NOT NULL
+                AND usr_login LIKE "(#deleted%"';
 
         $stmt = $appbox->get_connection()->prepare($sql);
         $stmt->execute();
diff --git a/lib/classes/patch/360alpha2b.php b/lib/classes/patch/360alpha2b.php
index 20480fec22..239ee3e773 100644
--- a/lib/classes/patch/360alpha2b.php
+++ b/lib/classes/patch/360alpha2b.php
@@ -60,16 +60,18 @@ class patch_360alpha2b implements patchInterface
          */
         try {
             $sql = "ALTER TABLE `metadatas`
-                            ADD `updated` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '1',
-                            ADD INDEX ( `updated` )";
+                    ADD `updated` TINYINT( 1 ) UNSIGNED NOT NULL DEFAULT '1',
+                    ADD INDEX ( `updated` )";
 
             $stmt = $databox->get_connection()->prepare($sql);
             $stmt->execute();
             $stmt->closeCursor();
 
             $sql = 'UPDATE metadatas SET updated = "0"
-                            WHERE meta_struct_id
-                                IN (SELECT id FROM metadatas_structure WHERE multi = "1")';
+                    WHERE meta_struct_id IN
+                    (
+                        SELECT id FROM metadatas_structure WHERE multi = "1"
+                    )';
             $stmt = $databox->get_connection()->prepare($sql);
             $stmt->execute();
             $stmt->closeCursor();
@@ -88,9 +90,9 @@ class patch_360alpha2b implements patchInterface
         }
 
         $sql = 'SELECT m . *
-            FROM metadatas_structure s, metadatas m
-            WHERE m.meta_struct_id = s.id
-            AND s.multi = "1" AND updated="0"';
+                FROM metadatas_structure s, metadatas m
+                WHERE m.meta_struct_id = s.id
+                AND s.multi = "1" AND updated="0"';
 
         $stmt = $databox->get_connection()->prepare($sql);
         $stmt->execute();
@@ -102,9 +104,9 @@ class patch_360alpha2b implements patchInterface
 
         while ($n < $rowCount) {
             $sql = 'SELECT m . *
-            FROM metadatas_structure s, metadatas m
-            WHERE m.meta_struct_id = s.id
-            AND s.multi = "1" LIMIT ' . $n . ', ' . $perPage;
+                    FROM metadatas_structure s, metadatas m
+                    WHERE m.meta_struct_id = s.id
+                    AND s.multi = "1" LIMIT ' . $n . ', ' . $perPage;
 
             $stmt = $databox->get_connection()->prepare($sql);
             $stmt->execute();
@@ -114,7 +116,7 @@ class patch_360alpha2b implements patchInterface
             $databox->get_connection()->beginTransaction();
 
             $sql = 'INSERT INTO metadatas(id, record_id, meta_struct_id, value)
-                                VALUES (null, :record_id, :meta_struct_id, :value)';
+                    VALUES (null, :record_id, :meta_struct_id, :value)';
             $stmt = $databox->get_connection()->prepare($sql);
 
             $databox_fields = [];
diff --git a/lib/classes/patch/370alpha3a.php b/lib/classes/patch/370alpha3a.php
index e4c744dfcd..c0f34b3a96 100644
--- a/lib/classes/patch/370alpha3a.php
+++ b/lib/classes/patch/370alpha3a.php
@@ -69,5 +69,7 @@ class patch_370alpha3a implements patchInterface
             $client->set_type(\API_OAuth2_Application::DESKTOP_TYPE);
             $client->set_redirect_uri(\API_OAuth2_Application::NATIVE_APP_REDIRECT_URI);
         }
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/370alpha4a.php b/lib/classes/patch/370alpha4a.php
index 755791348b..a9393c1267 100644
--- a/lib/classes/patch/370alpha4a.php
+++ b/lib/classes/patch/370alpha4a.php
@@ -55,7 +55,6 @@ class patch_370alpha4a implements patchInterface
 
     public function apply(base $databox, Application $app)
     {
-
         $sql = 'SELECT id, src FROM metadatas_structure';
         $stmt = $databox->get_connection()->prepare($sql);
         $stmt->execute();
diff --git a/lib/classes/patch/370alpha7a.php b/lib/classes/patch/370alpha7a.php
index 58ff5a029f..427cce5a68 100644
--- a/lib/classes/patch/370alpha7a.php
+++ b/lib/classes/patch/370alpha7a.php
@@ -153,7 +153,7 @@ class patch_370alpha7a implements patchInterface
 
         $stmt->closeCursor();
 
-        return;
+        return true;
     }
 
     private function truncateTable(\Doctrine\ORM\EntityManager $em, $className)
diff --git a/lib/classes/patch/371alpha1a.php b/lib/classes/patch/371alpha1a.php
index 4065052db1..7a5a0431a1 100644
--- a/lib/classes/patch/371alpha1a.php
+++ b/lib/classes/patch/371alpha1a.php
@@ -62,5 +62,7 @@ class patch_371alpha1a implements patchInterface
         foreach ($databox->get_meta_structure() as $databox_field) {
             $databox_field->save();
         }
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha10a.php b/lib/classes/patch/380alpha10a.php
index 86d24c1104..e053f87d21 100644
--- a/lib/classes/patch/380alpha10a.php
+++ b/lib/classes/patch/380alpha10a.php
@@ -65,5 +65,7 @@ class patch_380alpha10a implements patchInterface
         }
 
         $stmt->closeCursor();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha11a.php b/lib/classes/patch/380alpha11a.php
index fec3c3a947..cff56183d5 100644
--- a/lib/classes/patch/380alpha11a.php
+++ b/lib/classes/patch/380alpha11a.php
@@ -63,7 +63,7 @@ class patch_380alpha11a implements patchInterface
             $stmt->closeCursor();
         } catch (\PDOException $e) {
             // this may fail on oldest versions
-            return;
+            return false;
         }
 
         foreach ($rs as $row) {
@@ -115,5 +115,7 @@ class patch_380alpha11a implements patchInterface
         }
 
         $app['EM']->flush();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha2a.php b/lib/classes/patch/380alpha2a.php
index 327c2cc31b..9e9481183d 100644
--- a/lib/classes/patch/380alpha2a.php
+++ b/lib/classes/patch/380alpha2a.php
@@ -66,5 +66,7 @@ class patch_380alpha2a implements patchInterface
         }
 
         $app['configuration']->setConfig($config);
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha2b.php b/lib/classes/patch/380alpha2b.php
index ffdb4def3f..c472381d87 100644
--- a/lib/classes/patch/380alpha2b.php
+++ b/lib/classes/patch/380alpha2b.php
@@ -70,6 +70,6 @@ class patch_380alpha2b implements patchInterface
             $app['phraseanet.appbox']->get_connection()->exec($sql);
         }
 
-        return;
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha3a.php b/lib/classes/patch/380alpha3a.php
index ce033d518e..2145268b39 100644
--- a/lib/classes/patch/380alpha3a.php
+++ b/lib/classes/patch/380alpha3a.php
@@ -68,44 +68,44 @@ class patch_380alpha3a implements patchInterface
         $procedure = "
         CREATE PROCEDURE explode_log_table(bound VARCHAR(255))
         BEGIN
-          DECLARE l_log_id INT UNSIGNED DEFAULT 0;
-          DECLARE l_coll_list TEXT;
-          DECLARE occurance INT DEFAULT 0;
-          DECLARE i INT DEFAULT 0;
-          DECLARE dest_coll_id INT;
-          DECLARE done INT DEFAULT 0;
-          DECLARE result_set CURSOR FOR
+            DECLARE l_log_id INT UNSIGNED DEFAULT 0;
+            DECLARE l_coll_list TEXT;
+            DECLARE occurance INT DEFAULT 0;
+            DECLARE i INT DEFAULT 0;
+            DECLARE dest_coll_id INT;
+            DECLARE done INT DEFAULT 0;
+            DECLARE result_set CURSOR FOR
             SELECT l.id, l.coll_list
             FROM log l
             LEFT JOIN log_colls lc ON (lc.log_id = l.id)
             WHERE (lc.log_id IS NULL) AND coll_list != '';
-          DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
-          OPEN result_set;
+            DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
+            OPEN result_set;
             read_loop: LOOP
-              FETCH result_set INTO l_log_id, l_coll_list;
-              IF done THEN
+                FETCH result_set INTO l_log_id, l_coll_list;
+                IF done THEN
                 LEAVE read_loop;
-              END IF;
-              SET occurance = (SELECT  LENGTH(l_coll_list) - LENGTH(REPLACE(l_coll_list, bound, ''))+1);
-              SET i=1;
-          START TRANSACTION;
-              WHILE i <= occurance DO
-                SET dest_coll_id = (SELECT REPLACE(
-                    SUBSTRING(
-                        SUBSTRING_INDEX(l_coll_list, bound, i),
-                        LENGTH(SUBSTRING_INDEX(l_coll_list, bound, i - 1)) + 1
-                    ),
-                    ',',
-                    ''
-                ));
-                IF dest_coll_id > 0 THEN
-                  INSERT INTO log_colls VALUES (null, l_log_id, dest_coll_id);
                 END IF;
-                SET i = i + 1;
-              END WHILE;
-          COMMIT;
+                SET occurance = (SELECT  LENGTH(l_coll_list) - LENGTH(REPLACE(l_coll_list, bound, ''))+1);
+                SET i=1;
+            START TRANSACTION;
+                WHILE i <= occurance DO
+                    SET dest_coll_id = (SELECT REPLACE(
+                        SUBSTRING(
+                            SUBSTRING_INDEX(l_coll_list, bound, i),
+                            LENGTH(SUBSTRING_INDEX(l_coll_list, bound, i - 1)) + 1
+                        ),
+                        ',',
+                        ''
+                    ));
+                    IF dest_coll_id > 0 THEN
+                        INSERT INTO log_colls VALUES (null, l_log_id, dest_coll_id);
+                    END IF;
+                    SET i = i + 1;
+                END WHILE;
+            COMMIT;
             END LOOP;
-          CLOSE result_set;
+            CLOSE result_set;
         END;";
 
         $stmt = $conn->prepare($procedure);
diff --git a/lib/classes/patch/380alpha4a.php b/lib/classes/patch/380alpha4a.php
index 10cb5efb13..abe085ce51 100644
--- a/lib/classes/patch/380alpha4a.php
+++ b/lib/classes/patch/380alpha4a.php
@@ -81,5 +81,7 @@ class patch_380alpha4a implements patchInterface
 
         $app['EM']->flush();
         $app['EM']->clear();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha6a.php b/lib/classes/patch/380alpha6a.php
index e1c5f8db0e..d916539d7a 100644
--- a/lib/classes/patch/380alpha6a.php
+++ b/lib/classes/patch/380alpha6a.php
@@ -50,5 +50,7 @@ class patch_380alpha6a implements patchInterface
     {
         $app['configuration']->setDefault('registration-fields');
         $app['configuration']->setDefault('authentication');
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/380alpha8a.php b/lib/classes/patch/380alpha8a.php
index 8681218cfb..03608de2a4 100644
--- a/lib/classes/patch/380alpha8a.php
+++ b/lib/classes/patch/380alpha8a.php
@@ -57,7 +57,7 @@ class patch_380alpha8a implements patchInterface
         $stmt->closeCursor();
 
         if (!$row) {
-            return;
+            return false;
         }
 
         $sxe = simplexml_load_string($row['settings']);
diff --git a/lib/classes/patch/380alpha9a.php b/lib/classes/patch/380alpha9a.php
index 4fd9a97d8a..25b19cbb09 100644
--- a/lib/classes/patch/380alpha9a.php
+++ b/lib/classes/patch/380alpha9a.php
@@ -70,5 +70,7 @@ class patch_380alpha9a implements patchInterface
         $dom->loadXML($sxe->asXML());
 
         $databox->saveStructure($dom);
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/381alpha1a.php b/lib/classes/patch/381alpha1a.php
index 47c01c5915..e40f079c3e 100644
--- a/lib/classes/patch/381alpha1a.php
+++ b/lib/classes/patch/381alpha1a.php
@@ -49,8 +49,8 @@ class patch_381alpha1a implements patchInterface
     public function apply(base $appbox, Application $app)
     {
         $sql = 'SELECT base_id, ord, sbas_id
-            FROM  `bas`
-            ORDER BY sbas_id, ord';
+                FROM  `bas`
+                ORDER BY sbas_id, ord';
         $stmt = $appbox->get_connection()->prepare($sql);
         $stmt->execute();
         $rs = $stmt->fetchAll(\PDO::FETCH_ASSOC);
diff --git a/lib/classes/patch/390alpha1a.php b/lib/classes/patch/390alpha1a.php
index 5a9c85038d..0ea4adfc69 100644
--- a/lib/classes/patch/390alpha1a.php
+++ b/lib/classes/patch/390alpha1a.php
@@ -88,5 +88,7 @@ class patch_390alpha1a implements patchInterface
 
         $em->flush();
         $em->clear();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha1b.php b/lib/classes/patch/390alpha1b.php
index 2651732564..ab02c8169d 100644
--- a/lib/classes/patch/390alpha1b.php
+++ b/lib/classes/patch/390alpha1b.php
@@ -123,5 +123,7 @@ class patch_390alpha1b implements patchInterface
         $em->clear();
 
         $em->getEventManager()->addEventSubscriber(new TimestampableListener());
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha2a.php b/lib/classes/patch/390alpha2a.php
index 4e828a65e0..9696214f25 100644
--- a/lib/classes/patch/390alpha2a.php
+++ b/lib/classes/patch/390alpha2a.php
@@ -68,6 +68,8 @@ class patch_390alpha2a implements patchInterface
         $this->updateModels($em, $conn);
 
         $em->getEventManager()->addEventSubscriber(new TimestampableListener());
+
+        return true;
     }
 
     /**
@@ -76,10 +78,10 @@ class patch_390alpha2a implements patchInterface
     private function updateUsers(EntityManager $em, $conn)
     {
         $sql = 'SELECT activite, adresse, create_db, canchgftpprofil, canchgprofil, ville,
-            societe, pays, usr_mail, fax, usr_prenom, geonameid, invite, fonction, last_conn, lastModel,
-            usr_nom, ldap_created, locale, usr_login, mail_locked, mail_notifications, nonce, usr_password, push_list,
-            request_notifications, salted_password, usr_sexe, tel, timezone, cpostal, usr_creationdate, usr_modificationdate
-            FROM usr WHERE model_of = 0';
+                societe, pays, usr_mail, fax, usr_prenom, geonameid, invite, fonction, last_conn, lastModel,
+                usr_nom, ldap_created, locale, usr_login, mail_locked, mail_notifications, nonce, usr_password, push_list,
+                request_notifications, salted_password, usr_sexe, tel, timezone, cpostal, usr_creationdate, usr_modificationdate
+                FROM usr WHERE model_of = 0';
         $stmt = $conn->prepare($sql);
         $stmt->execute();
         $rows = $stmt->fetchAll(\PDO::FETCH_ASSOC);
diff --git a/lib/classes/patch/390alpha3a.php b/lib/classes/patch/390alpha3a.php
index 513e190e2e..1faaf34c77 100644
--- a/lib/classes/patch/390alpha3a.php
+++ b/lib/classes/patch/390alpha3a.php
@@ -84,5 +84,7 @@ class patch_390alpha3a implements patchInterface
 
         $em->flush();
         $em->clear();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha4a.php b/lib/classes/patch/390alpha4a.php
index 0a87d42726..dbadbbb7f9 100644
--- a/lib/classes/patch/390alpha4a.php
+++ b/lib/classes/patch/390alpha4a.php
@@ -89,5 +89,7 @@ class patch_390alpha4a implements patchInterface
 
         $em->flush();
         $em->clear();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha5a.php b/lib/classes/patch/390alpha5a.php
index 2253aea336..154d43eb17 100644
--- a/lib/classes/patch/390alpha5a.php
+++ b/lib/classes/patch/390alpha5a.php
@@ -85,5 +85,7 @@ class patch_390alpha5a implements patchInterface
 
         $em->flush();
         $em->clear();
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha6a.php b/lib/classes/patch/390alpha6a.php
index 6f6681763b..c99fedae1a 100644
--- a/lib/classes/patch/390alpha6a.php
+++ b/lib/classes/patch/390alpha6a.php
@@ -80,8 +80,7 @@ class patch_390alpha6a implements patchInterface
         $rs = $stmt->fetchAll(\PDO::FETCH_ASSOC);
         $stmt->closeCursor();
 
-        $sql = 'SELECT base_id, record_id, subdef, filename, folder, error,
-                    done, businessfields
+        $sql = 'SELECT base_id, record_id, subdef, filename, folder, error, done, businessfields
                 FROM ftp_export_elements
                 WHERE ftp_export_id = :export_id';
         $stmt = $conn->prepare($sql);
@@ -152,5 +151,7 @@ class patch_390alpha6a implements patchInterface
         $em->clear();
 
         $em->getEventManager()->addEventSubscriber(new TimestampableListener());
+
+        return true;
     }
 }
diff --git a/lib/classes/patch/390alpha7a.php b/lib/classes/patch/390alpha7a.php
index 7d19d8851d..01885b7668 100644
--- a/lib/classes/patch/390alpha7a.php
+++ b/lib/classes/patch/390alpha7a.php
@@ -220,5 +220,7 @@ class patch_390alpha7a implements patchInterface
 
         $em->flush();
         $em->clear();
+
+        return true;
     }
 }