Hello.
Why comments_after_insert_listener return None for target.report - backref
for TripReport.comments?
class TripReportComment(Base):
__tablename__ = 'trip_report_comments'
id = Column(Integer, primary_key=True)
content = Column(UnicodeText, nullable=False)
report_id = Column(Integer, ForeignKey('trip_reports.id'),
nullable=False)
def comments_after_insert_listener(mapper, connection, target):
print target.report
event.listen(TripReportComment, 'after_insert',
comments_after_insert_listener)
class TripReport(Base):
__tablename__ = 'trip_reports'
id = Column(Integer, primary_key=True)
...
comments = relationship('TripReportComment', backref='report',
cascade='all, delete-orphan', order_by='TripReportComment.id')
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