Minor - update from 1.11.x

src/CoreBundle/Repository/BranchSyncRepository.php

@@ -37,4 +37,30 @@ class BranchSyncRepository extends NestedTreeRepository
 
         return $q->execute();
     }
+
+    /**
+     * Gets the first branch with parent_id = NULL.
+     *
+     * @return mixed
+     */
+    public function getTopBranch()
+    {
+        $qb = $this->createQueryBuilder('a');
+
+        //Selecting user info
+        $qb->select('DISTINCT b');
+
+        $qb->from('Chamilo\CoreBundle\Entity\BranchSync', 'b');
+        $qb->where('b.parentId IS NULL');
+        $qb->add('orderBy', 'b.id ASC');
+        $qb->setMaxResults(1);
+        $q = $qb->getQuery()->getResult();
+        if (empty($q)) {
+            return null;
+        } else {
+            foreach ($q as $result) {
+                return $result;
+            }
+        }
+    }
 }