Issue #3448265 by n.ghunaim: Fix an Error when using Layout Builder permissions with the Section Library module

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Closes #3448265

src/SectionLibraryRender.php

@@ -113,12 +113,17 @@ class SectionLibraryRender implements TrustedCallbackInterface {
         }
       }
 
+      $current_route_match = \Drupal::service('current_route_match');
+      $route_name = $current_route_match->getRouteName();
+      $params = $current_route_match->getParameters()->all();
+
+      // Add save template to library link to the template.
       $add_template_to_library_url = Url::fromRoute(
         'section_library.add_template_to_library',
         [
-          'section_storage_type' => $params['section_storage_type'],
-          'section_storage' => $params['section_storage'],
-          'delta' => $params['delta'],
+          'section_storage_type' => $params['section_storage']->getStorageType(),
+          'section_storage' => $params['section_storage']->getStorageId(),
+          'delta' => count($params['section_storage']->getSections()),
         ],
         [
           'attributes' => [

[Rajab Natshah]

Why the use of count? No ready method to get the delta from the section storage or get it directly from $parms