python - SQLAlchemy 验证器方法未针对同义词触发

Question

我有一些表采用连接表继承，子类具有父列的同义词属性:

class Parent(DeclarativeBase):
    # ...
    parent_column = Column(String(255))

class Child(Parent):
    # ...
    child_column = synonym('parent_column')

    @validates('child_column')  # @validates('parent_column') also does not work
    def validator(self, name, value):
        # not called at all
        raise ValueError()

我错过了什么吗？目前还不可能吗？

Answer 1

目前这是 SQLAlchemy 的限制，请参阅错误:#2943