I'm calling this "eagerloading" , but it's not the right term...
I have an object that is already loaded...
user = dbSession.query( model.User ).filter_by( id = 1 ).first()
over time it's seen a handful of relationships grow...
user = dbSession.query( model.User ).filter_by( id = 1 )\
.options(\
joinedload('foo') ,
joinedload('foo.bar') ,
joinedload('biz') ,
joinedload('biz.bash') ,
)\
profiling some code, I don't need to eagerload everything anymore.
I'd like to try and select the least amount of data at first, then select
more as needed.
i know for single-level items I can just hit the property as `User.foo` and
for collections i can do `list( User.foo )`
but are there good ways to handle relationships like `User.foo.bar` ?
My goal is to load all the data for the named relationships at once. I
don't want to iterate through rows or leave a db cursor open.
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