Question

我有一个基础模型Asset，其他模型从照片和视频中继承了这些模型。我创建了Asset作为基类来获取特定用户的所有对象。它的工作正常。但我需要知道资产的模型类名称。我怎么得到它？

模型：

class Asset(models.Model):
    user = models.ForeignKey(User, related_name = "user_objects")
    likes = models.ManyToManyField(User, through="Like", related_name="Liked_user")
    comments = models.ManyToManyField(User, through="Comment", related_name="Commented_user")
    timestamp = models.DateTimeField(auto_now = True, auto_now_add= False)
    updated = models.DateTimeField(auto_now = False, auto_now_add = True)

    class Meta:
        ordering = ['-timestamp']

    def __unicode__(self):
        return self.user.username

class Album(Asset):
    title = models.CharField(max_length=200)
    description = models.TextField()

    def __unicode__(self):
        return self.title


class Picture(Asset):
    description = models.TextField()
    image = models.ImageField(upload_to=get_upload_file_name)
    album = models.ForeignKey(Album, null=True, blank=True, default = None)

    def __unicode__(self):
        return self.description

class ProfilePicture(Picture):
    pass

假设，我需要知道资产是Album类还是ProfilePicture类？如何返回资产的类名？

修改

例如：

>>> r.user_objects.all()
[<Asset: Asset>, <Asset: Asset>, <Asset: Asset>, <Asset: Asset>, <Asset: Asset>]

我想要的是获取用户的所有资产，并根据孩子的班级名称区分他们。喜欢 -

>>> r.user_objects.all()
[<Asset: Photo>, <Asset: Video>, <Asset: Photo>, <Asset: ProfilePicture>, <Asset: Video>]

我希望我很清楚。请指导我。谢谢。

Answer 1

assetInstance.__class__.__name__应该退回。

django - 返回对象实例的类名

1 个答案: