prevent php-errors on public-booking-plans, refs #1339

Merge request studip/studip!875

app/controllers/room_management/overview.php

@@ -37,6 +37,8 @@ class RoomManagement_OverviewController extends AuthenticatedController
         }
         parent::before_filter($action, $args);
         $this->user = User::findCurrent();
+
+        if ($this->user) {
             $this->show_resource_actions = (
                 ResourceManager::userHasGlobalPermission($this->user, 'autor')
                 ||
@@ -62,6 +64,7 @@ class RoomManagement_OverviewController extends AuthenticatedController
                     'admin'
                 );
         }
+    }
 
     public function index_action()
     {

app/views/resources/_common/_grouped_room_list.php

@@ -61,6 +61,7 @@
                                                 </a>
                                             </td>
                                             <td class="actions">
+                                                <? if ($user) :?>
                                                     <?
                                                     $perms = [
                                                         'show_global_admin_actions' => $show_global_admin_actions,
@@ -72,7 +73,8 @@
                                                     ?>
                                                     <?= $this->render_partial('resources/_common/_action_menu.php',
                                                         compact('resource') + $perms
-                                                );?>
+                                                    )?>
+                                                <? endif ?>
                                             </td>
                                         </tr>
                                     <? endforeach ?>

app/views/room_management/overview/public_booking_plans.php

 <?= $this->render_partial(
     'resources/_common/_grouped_room_list.php',
-    ['grouped_rooms' => $grouped_rooms]
+    ['grouped_rooms' => $grouped_rooms, 'user' => $user]
 ) ?>