/**
* @return \MongoDB\Driver\Cursor
*/
protected function ensureCursor()
{
if ($this->cursor === null) {
$this->cursor = $this->db->command(TypeConverter::convertLegacyArrayToObject($this->command), $this->getOptions());
}
return $this->cursor;
}
/**
* Querys this collection, returning a single element
* @link http://www.php.net/manual/en/mongocollection.findone.php
* @param array $query The fields for which to search.
* @param array $fields Fields of the results to return.
* @return array|null
*/
public function findOne(array $query = array(), array $fields = array())
{
$document = $this->collection->findOne(TypeConverter::convertLegacyArrayToObject($query), ['projection' => $fields]);
if ($document !== null) {
$document = TypeConverter::convertObjectToLegacyArray($document);
}
return $document;
}
