models.py 文件源码

def write_last_parameter(user, param, value):
    """
    Saves the parameter value for the user.

    :param user: the user to save the parameter for
    :type user: User
    :param param: the name of the parameter to save
    :type param: str
    :param value: the value to store
    :type value: str
    """
    params = LastParameters.objects.all().filter(user=user)
    if len(params) == 0:
        p = LastParameters()
        p.user = user
        p.parameters = JSONField()
        jparams = json.loads("{}")
    else:
        p = params[0]
        jparams = json.loads(p.parameters)

    jparams[param] = value
    p.parameters = json.dumps(jparams)
    p.save()