DGIR-148 : Fix update hook issue

embargo.install

@@ -6,7 +6,7 @@
  */
 
 use Drupal\Core\Field\BaseFieldDefinition;
-use Drupal\Core\Update\UpdateException;
+use Drupal\Core\Utility\UpdateException;
 
 /**
  * Add a new field to the existing Embargo entity type.
@@ -20,16 +20,13 @@ function embargo_update_8001() {
   try {
     // Create a new field definition.
     $new_field = BaseFieldDefinition::create('entity_reference')
-      ->setLabel(t('New Embargoed File'))
+      ->setLabel(t('Embargoed File'))
       ->setDescription(t('New field for attaching media to the Embargo node.'))
       ->setSetting('target_type', 'media')
       ->setCardinality(BaseFieldDefinition::CARDINALITY_UNLIMITED);
 
     // Install the new definition.
-    $definition_manager->installFieldStorageDefinition('new_embargoed_file', $entity_type_id, $bundle, $new_field);
-
-    // Clear the cache.
-    drupal_flush_all_caches();
+    $definition_manager->installFieldStorageDefinition('embargoed_file', $entity_type_id, $bundle, $new_field);
   }
   catch (UpdateException $e) {
     // Handle exception if needed.
@@ -38,5 +35,5 @@ function embargo_update_8001() {
   }
 
   // Provide a message indicating the update has been applied.
-  return t('Added new_embargoed_file to the Embargo entity.');
+  return t('Added embargoed_file to the Embargo entity.');
 }