Only render the regenerate under certain conditions.

11 years ago · 91a379067a
1 changed files with 1 additions and 1 deletions
--- a/theme/theme.inc
+++ b/theme/theme.inc
@ -447,7 +447,7 @@ function theme_islandora_datastream_regenerate_link(array $vars) {
  $object = $datastream->parent;
  $hooks = islandora_invoke_hook_list(ISLANDORA_DERVIATIVE_CREATION_HOOK, $object->models, array($object));
  foreach ($hooks as $hook) {
-    if ($hook['destination_dsid'] == $datastream->id) {
+    if (isset($hook['source_dsid']) && isset($object[$hook['source_dsid']]) && $hook['destination_dsid'] == $datastream->id) {
      return l(t('regenerate'), "islandora/object/{$datastream->parent->id}/datastream/{$datastream->id}/regenerate");
    }
  }