original_string: public function queryBuilder()
      {
          if (!$this->queryBuilder) {
              $this->queryBuilder = $this->grid->model()->getQueryBuilder();
          }
  
          return $this->queryBuilder;
      }
code: public function queryBuilder()
      {
          if (!$this->queryBuilder) {
              $this->queryBuilder = $this->grid->model()->getQueryBuilder();
          }
  
          return $this->queryBuilder;
      }
code_tokens: public function queryBuilder ( ) { if ( ! $ this -> queryBuilder ) { $ this -> queryBuilder = $ this -> grid -> model ( ) -> getQueryBuilder ( ) ; } return $ this -> queryBuilder ; }
docstring: Get model query builder.
  
  @return \Illuminate\Database\Eloquent\Builder
docstring_tokens: Get model query builder .