Hi all,
I have the following:
class Device(Base):
...
source_id = Column(BigInteger, primary_key=True)
...
class EventQuery(Query):
def custommethod():
...
class Event(Base):
__tablename__ = 'events'
query = Session.query.property(query_cls = EventQuery)
...
device_source_id = Column(BigInteger, ForeignKey("Device.source_id"))
device = relationship(Device, backref=backref('events', lazy='dynamic'))
...
Now, Device.events returns a query of type AppenderQuery, which is fine for
some built-in methods like count() and all(). What I really need is for this
to be a query of type EventQuery, so I can call
Device.events.custommethod().
1) Is it possible to coerce AppenderQuery into a different Query class?
2) If not, is it appropriate to create a custom property on Device that will
return an EventQuery containing the equivalent query, or is there a more
proper way to do it?
Thanks,
S.
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