On Friday, May 31, 2013 6:31:25 AM UTC-4, Ladislav Lenart wrote: > > Hello. > > I've read the patch and the new documentation and i've learned about the > existence of select_entity_from(). I was trying to say that the new > documentation does not help me to understand the meaning / preferred usage > of > these constructs (i.e. select_from, select_entity_from and aliased). I > simply > don't understand when should I use which and why. >
use select_from() as you have been, and you're done. It now does what you expect. A more detailed explanation is here: http://docs.sqlalchemy.org/en/latest/changelog/migration_09.html#query-select-from-no-longer-applies-the-clause-to-corresponding-entities > > I have already solved my original problem by replacing select_from() with > add_entity() and join(). Take a look at older posts in this thread for > more > details if you're interested, though the original query is a bit more > involved > than the supplied regression. > > Ladislav Lenart > > > On 31.5.2013 12:06, Andrija Zarić wrote: > > On Friday, May 31, 2013 11:46:46 AM UTC+2, Ladislav Lenart wrote: > > > > Glad I could help, but I don't understand what is going on. Neither > ticket > > description nor the patch itself helped me. Sorry. > > > > What is select_from() good for when it generates a cartesian query? > > > > What MIGHT help ME (a lot infact) is a couple of DOs and DONTs > examples in one > > place for all these three constructs > > > > OR > > > > A 'highlevel user-friendly step-by-step description' about what each > construct > > does, so that I can see where they differ. > > > > > > Hi, Lenart! > > > > In the patch you can find doc for the new method > Query.select_entity_from. As I > > read it, it replaces Query.select_from. > > > > Have you tried simply replacing old method with the new one (after > applying the > > patch)? > > > > a. > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at http://groups.google.com/group/sqlalchemy?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
