问题描述
我在sqlalchemy中将M:N关系定义为:
association_table = Table('association_table',base.Metadata,Column('content_id',UUID(as_uuid=True),ForeignKey('content.content.content_id'),primary_key=True),Column('message_id',ForeignKey('messages.webhooks.message_id'),schema='content'
)
class Messsages(base):
__table_args__ = {"schema": "messages"}
__tablename__ = 'webhooks'
id = Column('message_id',primary_key=True)
parents = relationship(
"Content",secondary=association_table,back_populates="children",uselist=False)
class Content(base):
__tablename__ = "content"
__table_args__ = {"schema": "content"}
id = Column("content_id",primary_key=True)
children = relationship(
Messsages,uselist=False,back_populates="parents")
class ContentRepository:
def __init__(self,session):
def get_all(self):
return self.session.query(Content).all()
for config in ContentRepository(session).get_all():
ids = config.children.id
解决方法
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