On 07/27/2011 10:42 AM, werner wrote: > I like to use a stored procure which needs a input parameter in > something like this: > > seltest = db.sa.select(["id", > "name"]).select_from(db.sa.func.someStoredProc(2)).alias() > seltestm = db.sao.mapper(ATest, seltest, primary_key=[seltest.c.id]) > result = session.query(seltestm).get(73) > > above works, but I would really need to replace the hardcoded "2" with > a function, i.e.: > > seltest = db.sa.select(["id", > "name"]).select_from(db.sa.func.someStoredProc(getSomeUserValue())).alias() > seltestm = db.sao.mapper(ATest, seltest, primary_key=[seltest.c.id]) > > # set the SomeUserValue here and then do > result = session.query(seltestm).get(73) > > tried using functools.partial but I get a InterfaceError exception. > > Werner > I believe you want to replace getSomeUserValue() with sa.bindparam(callable_=getSomeUserValue). See the docs at http://www.sqlalchemy.org/docs/core/expression_api.html#sqlalchemy.sql.expression.bindparam.
As an aside, do you really want to map a class against a dynamic query? I'm not sure how well the ORM deals with that. At the very least, I think you need to ensure that SomeUserValue does not change while using the session. -Conor -- 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.
