@classmethod
def disable(cls, user_id, github_id, name):
    """Disable webhooks for a repository.

        Disables the webhook from a repository if it exists in the DB.

        :param user_id: User identifier.
        :param repo_id: GitHub id of the repository.
        :param name: Fully qualified name of the repository.
        """
    repo = cls.get(user_id, github_id=github_id, name=name)
    repo.hook = None
    repo.user_id = None
    return repo
