AssertionError: Found different types with the same name in the schema

AssertionError: Found different types with the same name in the schema

我的模型中有两个 类:Products 和 SalableProducts(SalableProducts 继承自 Products,因此它具有数据库的每个字段)。下面是我的架构

我试过包括 "exclude_fields" 属性 但那没用

Product_schema.py:

class Product(SQLAlchemyObjectType):
 class Meta:
  model = ProductModel
  interfaces = (relay.Node, )

class ProductConnections(relay.Connection):
 class Meta:
  node = Product

Salable_product_schema.py:

class SalableProduct(SQLAlchemyObjectType):
 class Meta:
  model = SalableProductModel
  interfaces = (relay.Node, )

class SalableProductConnections(relay.Connection):
 class Meta:
  node = SalableProduct

Schema.py:

class Query(graphene.ObjectType):
 node = relay.Node.Field()
 all_products = SQLAlchemyConnectionField(ProductConnections)
 all_salable_products = 
  SQLAlchemyConnectionField(SalableProductConnections)

结果是这个错误:

AssertionError: Found different types with the same name in the schema: product_status, product_status.

(product_status是一个属性由两个类通过继承共享)

我遇到了同样的问题。在我的特殊情况下,问题是使用 backref 时 SQLAlchemy 的内部工作冲突。我会检查模型,看看是否是这种情况。

下面article有一些相关的信息。在我的特殊情况下,我尝试了建议的内容并重命名了其中一个连接:

techniques = SQLAlchemyConnectionField(TechniqueConnection)
belts = SQLAlchemyConnectionField(BeltConnection)
belt_techniques = SQLAlchemyConnectionField(BeltTechniqueConnections)

我向 BeltTechniqueConnection 添加了一个 's'。相关模型与技术和腰带具有多对多关系。