Hi, You won't be able to get() multiple objects at the same time. query(SomeClass).get(pk1, pk2, pk3) takes in a tuple of values representing the primary key of some record in your table. In this case the primary key consists of three separate columns (thus a composite key), though the record they identify will always be unique within your table. That's sort of the point of it being a primary key. Read the docs for an explanation of what parameters get() expects.
Of course you could use filter() and get the same result. I'm not sure but I guess the actual SQL executed by SA should look exactly the same, set echo to True and have a look. The difference being of course that you can use filter to return more then one record. I'm not sure how get() works on databases that don't need primary keys. I'm guessing it won't. Maybe it's in the docs. Hope that cleared things up. Regards, Christian 2009/3/23 Dan F <danielfal...@gmail.com>: > > Hi, > > Is there a difference between using query.get(ident) and using > query.filter(MyClass.id.in_())? Specifically with regard to how the > mapper is used? If I'm right in my assumption, get() uses the map to > avoid extra lookups, but I question whether the filter method is doing > the same. If I'm correct, shouldn't there be a way to get() multiple > objects at the same time? > > Thanks. > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
