public function update($query, array $options = []) {
		$params = compact('query', 'options');

		return Filters::run($this, __FUNCTION__, $params, function($params) {
			$query = $params['query'];
			$options = $params['options'];
			$params = $query->export($this);

			list($_path, $conditions) = (array) $params['conditions'];
			$data = $query->data();

			foreach (['id', 'rev'] as $key) {
				$data["_{$key}"] = isset($data[$key]) ? (string) $data[$key] : null;
				unset($data[$key]);
			}
			$data = (array) $conditions + array_filter((array) $data);

			$retry = false;
			do {
				$result = $this->connection->put(
					"{$this->_config['database']}/{$_path}",
					$data,
					['type' => 'json']
				);
				$result = is_string($result) ? json_decode($result, true) : $result;
				$retry = $retry ? !$retry : $this->_autoBuild($result);
			} while ($retry);

			if (isset($result['_id']) || (isset($result['ok']) && $result['ok'] === true)) {
				$result = $this->_format($result, $options);
				$query->entity()->sync($result['id'], ['rev' => $result['rev']]);
				return true;
			}
			if (isset($result['error'])) {
				$query->entity()->errors([$result['error']]);
			}
			return false;
		});
	}