Sulu\Component\Rest\ListBuilder\Doctrine\FieldDescriptor\DoctrineDescriptor::getSelect PHP Method

    public function getSelect()
    {
        return sprintf('%s.%s', $this->entityName, $this->fieldName);
    }

 /**
  * {@inheritdoc}
  */
 public function getSearch()
 {
     return sprintf('%s LIKE :search OR (%s is NULL AND %s LIKE :search)', $this->case1->getSelect(), $this->case1->getSelect(), $this->case2->getSelect());
 }