[sqlalchemy] Adding a listener on a backref

[Cyril Scetbon]

Hi,

Is there a way to add an event listener on a backref ?

I have something like :

class User(Base):
    __tablename__ = 'user'
    id = Column(Integer, primary_key=True)
    name = Column(String)

    addresses = relationship("Address", backref="user")
class Address(Base):
    __tablename__ = 'address'
    id = Column(Integer, primary_key=True)
    email = Column(String)
    user_id = Column(Integer, ForeignKey('user.id'))



I'd like to do add an action when a dev set the attribute Address.user.

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