from graphene_sqlalchemy import SQLAlchemyObjectType

class ActiveSQLAlchemyObjectType(SQLAlchemyObjectType):
    class Meta:
        abstract = True

    @classmethod
    def get_node(cls, id, context, info):
        return cls.get_query(context).\
            filter(and_(
                cls._meta.model.deleted_at==None,
                cls._meta.model.id==id,
            )).\
            first()

class User(ActiveSQLAlchemyObjectType):
    class Meta:
        model = UserModel

class Query(graphene.ObjectType):
    users = graphene.List(User)

    def resolve_users(self, args, context, info):
        query = User.get_query(context) # SQLAlchemy query
        return query.all()

schema = graphene.Schema(query=Query)