在文档，假定已经创建了用户个人资料，现在可以对其进行更新。您只需要一张支票

In the documentation it is assumed that userprofile was already created and now can be updated. You just need a check

# get and update user profile
    try:
        profile = instance.userprofile
    except UserProfile.DoesNotExist:
        profile = UserProfile()
    if profile_data and company_name: