I've got an edge-case that I can't reliably reproduce yet, and it's driving
me crazy.
I have a table/view that is used for an analytics report. It just
references 2 objects from a given table, along with a count.
class Report(Base):
__tablename__ = 'report'
id = Column(Integer, primary_key=True)
object_a__id = Column(Integer, ForeignKey("object_a.id"))
object_a2__id = Column(Integer, ForeignKey("object_a.id"))
counted = Column(Integer, default=0)
object_a = relationship("ObjectA", primaryjoin=
"Report.object_a__id==ObjectA.id")
object_a2 = relationship("ObjectA", primaryjoin=
"Report.object_a2__id==ObjectA.id")
In certain circumstances (which I can't figure out), `object_a` is `None`,
even though it exists in the database (and sometimes in the identity map,
in an earlier row; or appears as object_a2).
--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
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