/**
* Find an item in a collection based on the provided query.
*
* @param null|array|\Closure $query The query to use to select the item.
* @param array $fields An array of field names to include in the result.
*
* @return null|array The Persistent item array result if found; otherwise null.
*/
public function findOne($query, $fields = [])
{
return $this->peer->findOne($query, $fields);
}
/**
* Finds one file.
*
* @param mixed $query filename or search query
* @param array $fields metadata fields select/exclude statement
*
* @return object|null MongoGridFSFile instance or null when not found.
*/
public function findOne($query = [], $fields = [])
{
if (is_string($query)) {
return $this->collection->findOne($query, $fields = []);
}
return parent::findOne($query, $fields);
}