Thanks for the response Mike... comments below. On Oct 28, 12:52 am, Michael Bayer <[EMAIL PROTECTED]> wrote: > On Oct 27, 2007, at 8:33 PM, Brian Beck wrote: > without trying it yet the first thing that seems wrong is that your > select has no join condition between a_table and b_table (nor are you > using a join(), which would figure it out for you based on foreign > keys, so your foreign key doesn't impact the equation much here on > the select side). the select will return the cartesian product > between a and b which is definitely not what you want.
Doesn't matter -- same thing happens with or without the join condition. (The cartesian product was intentional.) > the actual error seems that the b_id column is tripping off a refresh > of the instance's row, but when it issues your select(), its still > not getting back what it wants. since the mapper seems confused by > the primary key of the select (which is likely because you have a_id > represented twice), you might want to look into setting up your > 'the_id_of_a' property at the mapper level as a synonym() or > column_property() attribute. I dont see what good it does embedded > into that select(). or, try explicitly setting the mapper's > primary_key attribute to the desired columns from your select(). Pretend the Select is more complicated and needs to reference both IDs (which may have come from subqueries) -- in this case any mapper features (like synonym) don't help, the Select needs to exist first! Isn't it an error that b_id trips off a refresh? The correct values are inserted and should be available in last_inserted_ids for the mapper to populate instance with... --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
