check current user when searching process

src/Application/Actions/Search/SearchAction.php

@@ -32,7 +32,7 @@ class SearchAction extends Action
         $parsedRequestBody = (array)$this->request->getParsedBody();
 
         $search =  $this->checkvalue($parsedRequestBody['search']);
-        
+
         $users_query = $this->userRepository->createQueryBuilder('u');
         $users_list = $users_query
             ->where('u.username LIKE :search')
@@ -43,6 +43,13 @@ class SearchAction extends Action
             ->getResult();
 
         $groups_query = $this->groupRepository->createQueryBuilder('g');
+
+        if (isset($_SESSION['userId'])){
+            $currentUser = $_SESSION['userId'];
+        }
+        else {
+            $currentUser=0;
+        }
         $groups_list = $groups_query
             ->where('g.name LIKE :search')
             ->andWhere($groups_query->expr()->orX(
@@ -51,7 +58,7 @@ class SearchAction extends Action
 
             ))
             ->setParameters(array(
-                ':user_id' => $_SESSION['userId'],
+                ':user_id' => $currentUser,
                 ':search' => '%' . $search . '%'
             ))
             ->getQuery()
@@ -59,8 +66,8 @@ class SearchAction extends Action
 
 
         return $this->twig->render(
-            $this->response, 
-            "/home/search.twig", 
+            $this->response,
+            "/home/search.twig",
             ["users" => $users_list, "groups" => $groups_list, "session" => $_SESSION]
         );
     }