--- /dev/null
+/**
+ * Implements hook_field_delete_revision().
+ */
+function {{ machine_name }}_field_delete_revision($entity_type, $entity, $field, $instance, $langcode, &$items) {
+ list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
+ foreach ($items as $delta => $item) {
+ // For hook_file_references, remember that this file is being deleted.
+ $item['file_field_name'] = $field['field_name'];
+ if (file_field_delete_file($item, $field, $entity_type, $id)) {
+ $items[$delta] = NULL;
+ }
+ }
+}