Devise\Pages\Collections\CollectionsManager::removeInstance PHP Метод

    public function removeInstance($id)
    {
        $instance = $this->CollectionInstance->find($id);
        $this->Field->where('collection_instance_id', $id)->forceDelete();
        return $instance ? $instance->delete() : false;
    }

 /**
  * Remove the collection instance from the database
  *
  * @param  integer $collectionInstanceId
  * @return void
  */
 public function requestDeleteInstance($collectionInstanceId)
 {
     $this->CollectionsManager->removeInstance($collectionInstanceId);
 }