/**
* Retrieves collection with id $id or throws an exception if it doesn't exist
*
* @param integer $id A Collection identifier
*
* @return Collection
*
* @throws NotFoundHttpException
*/
protected function getCollection($id)
{
$collection = $this->collectionManager->find($id);
if (null === $collection) {
throw new NotFoundHttpException(sprintf('Collection (%d) not found', $id));
}
return $collection;
}
/**
* @param CollectionInterface|int $id
* @param CollectionInterface|null $default
*
* @return CollectionInterface
*/
protected final function getCollection($id, CollectionInterface $default = null)
{
if ($id instanceof CollectionInterface) {
return $id;
}
if (is_numeric($id)) {
return $this->collectionManager->find($id);
}
return $default;
}