On Jan 14, 2008, at 10:44 AM, Alexandre Conrad wrote:
> > > > Michael Bayer wrote: > >> I came up with a very easy way to implement this which I'd like you >> to >> try out in rev 4060. So far I've tested with a basic joined table >> inheritance setup. >> >> All you do is place class-mapped attributes directly in the join() >> arguments along with strings. and thats it ! so it looks like: >> >> session.query(Media).join(['catalog', CatalogChannel.channel]) >> >> The class-attributes can be freely intermixed with the existing >> string- >> based attributes. >> >> Technically you can place any class-attribute you want in there but >> it >> only makes sense if it can be joined against the immediately >> preceding >> attribute or parent mapper. I'm not sure if that restriction could >> change eventually. > > > model.Media.query.join(["catalog", > model > .CatalogChannel > .channel > ]).filter > (model.CatalogChannel.c.id_channel==c.playlist.id_channel).all() > > generates: > > SELECT files.id AS files_id, medias.id AS medias_id, files.name AS > files_name, files.mime AS files_mime, files.date AS files_date, > files.size AS files_size, files.checksum AS files_checksum, > files.description AS files_description, files.type AS files_type, > medias.id_catalog AS medias_id_catalog > FROM catalog_channels, files INNER JOIN medias ON files.id = medias.id > INNER JOIN catalogs ON catalogs.id = medias.id_catalog INNER JOIN > channels ON channels.id = catalog_channels.id_channel > WHERE catalog_channels.id_channel = %s ORDER BY files.name > whats that filter() trying to accomplish ? please work this into a full test case using SQLite so I can run through it. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
