/**
  * @param ClassMetadata $classMetadata
  * @param               $id
  *
  * @return bool
  */
 protected function canIncludeRelationship(ClassMetadata $classMetadata, $id)
 {
     foreach ($this->includedRelationships as $includedRelationship) {
         if ($includedRelationship['type'] === $classMetadata->getResource()->getType() && $includedRelationship['id'] === $id) {
             return false;
         }
     }
     return true;
 }