/**
  * Gets node searching builder
  *
  * @param string $keywords
  * @param string $type
  * @param int $limit
  * @param string $locale
  * @return Builder
  */
 public function getSearchNodeBuilder($keywords, $type = null, $limit = null, $locale = null)
 {
     // Because of the searchable trait we have to reset global scopes
     $builder = PublishedNode::withoutGlobalScopes()->published()->typeMailing()->translatedIn($locale)->groupBy('nodes.id');
     if ($type) {
         $builder->withType($type);
     }
     if ($limit) {
         $builder->limit($limit);
     }
     $builder->search($keywords, 20, true);
     return $builder;
 }