python - Django 仅相关字段列表过滤器- 不是 RelationField

Question

我希望 django 仅在筛选项目时在筛选器中显示相关字段。

例如，如果我选择品牌“XYZ”，它只会在过滤器中显示包含“XYZ”品牌的选项。

我下面的代码取自此处的另一个问题 - 但它不起作用。我不断收到“NotRelationField”错误 ( http://dpaste.com/23Y8ZE3 )。

Admin.py---

from django.contrib.admin.filters import RelatedOnlyFieldListFilter

# Some SimpleListFilter filters

class ProductAdmin(admin.ModelAdmin):
    actions = ['tag_Active_Wear', 'tag_Trending',]
    list_filter = (
        ('brand', RelatedOnlyFieldListFilter),
    )
    admin_order_field = ('price',)

# Some querysets for the actions

admin.site.register(Product, ProductAdmin)

模型.py----

class Product(models.Model):
    name = models.CharField ("Name", max_length=400)
    store = models.ForeignKey(Store)
    brand = models.CharField("Brand", max_length=200, blank=True)
    category = models.ManyToManyField(Category, blank=True)
    def __unicode__(self):
       return self.name

Answer 1

应该是store而不是brand，因为brand不是RelatedField

list_filter = (
    ('store', RelatedOnlyFieldListFilter),
)