Hello,
I am wondering if it's possible to simplify a method I have defined. I
have a few classes that are autoloaded:
PlatePointing, Plate, Plugging, PlPlugMapM
All are related, and all defined in this manner:
class Plate(Base):
__tablename__ = 'plate'
__table_args__ = {'autoload' : True}
Later, I define my relationships. I want to define an attribute that
performs a more complicated query, and this works:
def platePointing(self,session):
try:
pp = session.query(PlatePointing)\
.join(Plate, Plugging)\
.filter(Plate.pk==self.plugging.plate.pk)\
.filter(PlatePointing.pointing_name==self.pointing_name).one()
except sqlalchemy.orm.exc.NoResultFound:
pp = None
return pp
PlPlugMapM.platePointing = platePointing
My question is, can this be written so that I don't need to pass in
the session? I don't know how else to perform the query (or return the
object) without that.
Cheers,
Demitri
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