Resolve "ILIAS-Schnittstelle: getUserRoles wirft TypeError, wenn SOAP-Abfrage fehlschlägt"

Closes #6271

Merge request studip/studip!4741


(cherry picked from commit 2cf137042a708d49022ac90852d799b9123810c2)

9cc6637f fix getUserRoles type, re #6271

Co-authored-by: Arne Schröder, M. A. <schroeder@data-quest.de>

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/ilias_interface/ConnectedIlias.php b/lib/ilias_interface/ConnectedIlias.php
index 41b4daa..38211c9 100644
--- a/lib/ilias_interface/ConnectedIlias.php
+++ b/lib/ilias_interface/ConnectedIlias.php
@@ -76,6 +76,7 @@ class ConnectedIlias
                         "root" => "admin"
         ];
         $this->user_operations = [self::OPERATION_VISIBLE, self::OPERATION_READ];
+        $this->user_roles = [];
         $this->operations = [];
         $this->course_modules = [];
         $this->user_modules = [];
@@ -1526,7 +1527,10 @@ class ConnectedIlias
     public function getUserRoles(): array
     {
         if (empty($this->user_roles)) {
-            $this->user_roles = $this->soap_client->getUserRoles($this->user->getId());
+            $roles = $this->soap_client->getUserRoles($this->user->getId());
+            if ($roles !== false) {
+                $this->user_roles = $roles;
+            }
         }
         return $this->user_roles;
     }