Question

我正在尝试构建一个基于默认Django用户构建的用户配置文件。我尝试使用以下额外字段扩展默认用户：

class MyMember(models.Model):
    user = models.OneToOneField(settings.AUTH_USER_MODEL) #not sure about this
    birthday = models.DateField()

    USERNAME_FIELD = 'user'       #how to use username field from default user?           
    REQUIRED_FIELDS = ['birthday',]

    def __unicode__(self):
        return self.username

但是我收到了这个错误：＆＃39;经理＆＃39;对象没有属性＆＃39; get_by_natural_key＆＃39;？为什么？我还希望USERNAME_FIELD是默认用户的用户名。怎么样？

Answer 1

这是扩展default Django User模型的方法。您可能希望使用ForeignKey，然后可以使用点表示法来访问User模型的字段。

下面：

from django.contrib.auth.models import User

class MyMember(models.Model):
    user = models.ForeignKey(User)
    birthday = models.DateField()

    def __unicode__(self):
        # the default "username" field in the django user model
        return self.user.username

Answer 2

以下是我用于在我的演示网站中扩展UserProfile模型的User模型类：

#Private function required by image field.
def _get_upload_file_name_w_sub_dir(instance, filename):
    return  "uploaded_files/{0}{1}_{2}".format("profile_pic/", (str(time()).replace(".", "_"), filename))

class UserProfile(models.Model):
    # This line is required. Links UserProfile to a User model instance.
    # related_name is so you can reference *this* model as "user.profile"
    # instead of "user.userprofile"
    user = models.OneToOneField(User, related_name="profile")

    # The additional attributes we wish to include.
    year_discovered = models.IntegerField(blank=True,
        verbose_name="Year you discovered Billy Joel's music/became a fan")
    profile_picture = models.ImageField(upload_to=get_upload_profile_pic_file_name,
        blank=True, null=True)

    # Override the __unicode__() method to return out something meaningful!
    def __unicode__(self):
        return self.user.username

以下是扩展用户模型的official documentation。

扩展Django默认用户

2 个答案: