Python 如何向Django中的代理模型添加额外字段？

我特别谈论的是标签模型，我对它没有太多经验。代码如下所示：

@register_snippet
class ArticleTag(index.Indexed,Tag):

class Meta:
    proxy=True

search_fields = [
    index.SearchField('name', partial_match=True),
    index.SearchField('slug', partial_match=True),
]

@register_snippet
class ArticleTag(index.Indexed,Tag):

class Meta:
    proxy=True

search_fields = [
    index.SearchField('name', partial_match=True),
    index.SearchField('slug', partial_match=True),
]

merge_to = models.CharField(max_length=500, blank=True, null=True)

panels = [
    FieldPanel('name'),
    FieldPanel('slug'),
    FieldPanel('type'),
]

标记模型有两个字段，“name”和“slug”。但现在我想添加第三个名为“type”的自定义字段，它只是一个CharField

我试着这样修改它：

@register_snippet
class ArticleTag(index.Indexed,Tag):

class Meta:
    proxy=True

search_fields = [
    index.SearchField('name', partial_match=True),
    index.SearchField('slug', partial_match=True),
]

@register_snippet
class ArticleTag(index.Indexed,Tag):

class Meta:
    proxy=True

search_fields = [
    index.SearchField('name', partial_match=True),
    index.SearchField('slug', partial_match=True),
]

merge_to = models.CharField(max_length=500, blank=True, null=True)

panels = [
    FieldPanel('name'),
    FieldPanel('slug'),
    FieldPanel('type'),
]

但是，服务器会产生：

ERRORS:
?: (models.E017) Proxy model 'ArticleTag' contains model fields.

---

如何实现我要做的事情？

要从

TagBase

继承您的标记气体，您必须创建一个自定义模型。django taggit的

documentation已经发布。
我们可以在下面的技巧中实现这一点：p

class Model(object):
    '''
    Skip extra field validation "models.E017"
    '''

    @classmethod
    def _check_model(cls):
        errors = []
        return errors

@register_snippet
class ArticleTag(Model, index.Indexed,Tag):
    class Meta:
        proxy=True