utils.py 文件源码

def url_str_to_user_pk(s):
    User = get_user_model()
    # TODO: Ugh, isn't there a cleaner way to determine whether or not
    # the PK is a str-like field?
    if getattr(User._meta.pk, 'rel', None):
        pk_field = User._meta.pk.rel.to._meta.pk
    else:
        pk_field = User._meta.pk
    if (hasattr(models, 'UUIDField')
            and issubclass(type(pk_field), models.UUIDField)):
        return s
    try:
        pk_field.to_python('a')
        pk = s
    except ValidationError:
        pk = base36_to_int(s)
    return pk