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

I have two Classes Products and SalableProducts in my Models (SalableProducts inherits from Products so it has every field of it’s database), in my Schema here is what i did

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

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

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

and here is my Query class :

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

When i run my server i got this error :

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

[rdemetrescu]

I use this monkey-patch on my projects:

from functools import lru_cache

graphene.Enum.from_enum = lru_cache(maxsize=None)(graphene.Enum.from_enum)

[danjenson]

So, for the record, I solved this by making global SQLAlchemy types, so @richin13 , your code would become:

SA_AdStatus = db.Enum(AdStatus)

class MyModel(db.Model):
    status_before = db.Column(SA_AdStatus, nullable=False)
    status_during = db.Column(SA_AdStatus, nullable=False)