public function save()
    {
        $data = $this->getData();
        if ($this->_collection->save($data, ["j" => true])['err'] === null) {
            $this->_id = $data['_id'];
            $this->_cache->store(static::getCollection()."_{$this->_id}", $data);
            return true;
        }
        // @codeCoverageIgnoreStart
        return false;
        // @codeCoverageIgnoreEnd
    }