views.py 文件源码

def delete_vote(request):
    """
    Delete a vote from the database
    :param request: the current request object
    :return: a redirect to language read
    """
    if request.authenticated_user is None:
        raise exc.HTTPNotFound()

    public_language_id = request.matchdict["public_language_id"]
    public_group_id = request.matchdict['public_group_id']
    page_uri = urllib.unquote(urllib.unquote(request.matchdict['page_uri']))

    page = annotran.pages.models.Page.get_by_uri(page_uri)
    language = annotran.languages.models.Language.get_by_public_language_id(public_language_id)

    # only authenticated used can delete translations and consequently their scores
    user = h.models.User.get_by_username(request.authenticated_user.username)
    group = h.groups.models.Group.get_by_pubid(public_group_id)

    if language is None or page is None \
            or group is None or user is None:
        raise exc.HTTPNotFound()

    models.Vote.delete_votes(page, language, group, user)
    request.db.flush()

    return {}