Doctrine\ODM\MongoDB\Query\Query::execute PHP Method

    public function execute(array $options = array())
    {
        $uow = $this->dm->getUnitOfWork();

        $results = $this->query->execute($options);

        // Convert the regular mongodb cursor to the odm cursor
        if ($results instanceof BaseCursor) {
            $cursor = $results->getMongoCursor();
            $results = new Cursor($cursor, $this->dm->getUnitOfWork(), $this->class);
            $results->hydrate($this->hydrate);
        }

        // GeoLocationFindQuery just returns an instance of ArrayIterator so we have to
        // iterator over it and hydrate each object.
        if ($this->query instanceof \Doctrine\MongoDB\Query\GeoLocationFindQuery && $this->hydrate) {
            foreach ($results as $key => $result) {
                $document = $result['obj'];
                if ($this->class->distance) {
                    $document[$this->class->distance] = $result['dis'];
                }
                $results[$key] = $uow->getOrCreateDocument($this->class->name, $document);
            }
            $results->reset();
        }

        if ($this->hydrate && ($this->query instanceof FindAndRemoveQuery || $this->query instanceof FindAndUpdateQuery) && is_array($results) && isset($results['_id'])) {
            // Convert a single document array to a document object
            $results = $uow->getOrCreateDocument($this->class->name, $results);
        }

        return $results;
    }