On Sep 6, 2010, at 9:06 AM, Kent wrote: > with_parent seems to add a join condition.
OK, so I guess you read the docs which is why you thought it joined and why you didn't realize it doesn't work for transient. r20b6ce05f194 changes all that so that with_parent() accepts transient objects and will do the "look at the attributes" thing. The docs are updated as this method does use the lazy loader SQL mechanism, not a join. > Is there a way to get at > the query object that would be rendered from a lazy load (or what > "subqueryload" would render on the subsequent load), but on a > transient object, if i supply the session? > > even though not "recommended", can it make sqla believe my transient > object is detached by setting its state key? > > There are reasons i do not want to add this to the session and > disabling autoflush would also cause problems. > > > > On Sep 3, 9:58 am, Michael Bayer <mike...@zzzcomputing.com> wrote: >> On Sep 3, 2010, at 9:36 AM, Kent wrote: >> >>> For the case of customerid = '7', that is a simple problem, but when >>> it is a more complex join condition, we only wanted to define this >>> condition in one single place in our application (namely, the orm). >>> That way, if or when that changes, developers don't need to search for >>> other places in the app that needed to manually duplicate the logic of >>> the orm join condition. >> >>> If I supplied the DBSession to sqla, it would know how to create the >>> proper Query object for this lazyload. Can you point me in the right >>> direction (even if where you point me is not currently part of the >>> public API)? >> >> Query has the with_parent() method for this use case. >> >> >> >> >> >>> Thanks again, >>> Kent >> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "sqlalchemy" group. >>> To post to this group, send email to sqlalch...@googlegroups.com. >>> To unsubscribe from this group, send email to >>> sqlalchemy+unsubscr...@googlegroups.com. >>> For more options, visit this group >>> athttp://groups.google.com/group/sqlalchemy?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "sqlalchemy" group. > To post to this group, send email to sqlalch...@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. > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalch...@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.
