Sqlalchemy模型名称与automap

Question

我有大型数据库，它有表＆＃34; menu_category＆＃34;（model menu.Category）和＆＃34; kitchen_category＆＃34;（model kitchen.Category）。

Model＆＃34; ProductDetail＆＃34;这两种型号都有外键：

from kitchen import Category as KitchenCategory

class Detail(Base):
    __tablename__ = 'menu_productdetail'

    category_id = Column(ForeignKey('menu_category.id'))
    category = relationship(Category)

    kitchen_category_id = Column(ForeignKey('kitchen_category.id'))
    kitchen_category = relationship(KitchenCategory)

此代码产生错误：

  

reverse_property＆＃39;类别＆＃39; on关系Category.detail_collection引用关系Detail.category，它不引用mapper Mapper | Category | kitchen_category

但是，如果我将模型kitchen.Category重命名为kitchen.KitchenCategory：

from kitchen import KitchenCategory
class Detail(Base):
    __tablename__ = 'menu_productdetail'

    category_id = Column(ForeignKey('menu_category.id'))
    category = relationship(Category, backref='details')
    brands = relationship("Brand", secondary=brand_product_detail_association_table)

    kitchen_category_id = Column(ForeignKey('kitchen_category.id'))
    kitchen_category = relationship(KitchenCategory, backref='details')

然后它运作良好。我做错了什么？