Method update

mongoengine/document.py:646–663

Performs an update on the :class:`~mongoengine.Document` A convenience wrapper to :meth:`~mongoengine.QuerySet.update`. Raises :class:`OperationError` if called on an object that has not yet been saved.

(self, **kwargs)

        return select_dict

    def update(self, **kwargs):
        """Performs an update on the :class:`~mongoengine.Document`
        A convenience wrapper to :meth:`~mongoengine.QuerySet.update`.

        Raises :class:`OperationError` if called on an object that has not yet
        been saved.
        """
        if self.pk is None:
            if kwargs.get("upsert", False):
                query = self.to_mongo()
                if "_cls" in query:
                    del query["_cls"]
                return self._qs.filter(**query).update_one(**kwargs)
            else:
                raise OperationError("attempt to update a document not yet saved")

        # Need to add shard key to query, or you get an error
        return self._qs.filter(**self._object_key).update_one(**kwargs)

    def delete(self, signal_kwargs=None, **write_concern):
        """Delete the :class:`~mongoengine.Document` from the database. This