[sqlalchemy] Re: two scoped sessions in one app?
I had a Session.configure() statement which was called for both sessions and this was making setup unusable. Duh. On Jan 16, 2008 2:12 PM, Max Ischenko [EMAIL PROTECTED] wrote: On Jan 15, 2008 6:14 PM, Michael Bayer [EMAIL PROTECTED] wrote: if you are using multiple scoped sessions you won't be able to use Session.mapper - the idea of Session.mapper is that all instances get tied to a single contextual session. OK, so how do I set it up. I'm reading http://www.sqlalchemy.org/docs/04/session.html but answer isn't clear. Should I use set up one scope session and another with create_session? -- Max http://maxischenko.in.ua // http://www.linkedin.com/in/maksim --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: two scoped sessions in one app?
On Jan 15, 2008 6:14 PM, Michael Bayer [EMAIL PROTECTED] wrote: if you are using multiple scoped sessions you won't be able to use Session.mapper - the idea of Session.mapper is that all instances get tied to a single contextual session. OK, so how do I set it up. I'm reading http://www.sqlalchemy.org/docs/04/session.html but answer isn't clear. Should I use set up one scope session and another with create_session? --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: two scoped sessions in one app?
Hello, Sorry for reply to myself; just want to tell that the problem is solved. Here is how my setup looks like: Session = scoped_session(sessionmaker(autoflush=True, transactional=False)) SessionCDB = scoped_session(sessionmaker(autoflush=True, transactional=False)) ... # application startup sqlalchemy_configure(blog, Session, init_blog_meta) sqlalchemy_configure(cdb, SessionCDB, init_companydb_meta) ... def sqlalchemy_configure(dbname, session, callback): global metadata_cache from sqlalchemy import engine_from_config from pylons import config engine = engine_from_config(config, 'sqlalchemy.%s.' % dbname) session.configure(bind=engine) meta = sqlalchemy.MetaData(engine) metadata_cache[dbname] = meta callback(session.mapper, meta) Max. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
[sqlalchemy] Re: two scoped sessions in one app?
On Jan 15, 2008, at 7:37 AM, Max Ischenko wrote: Hello, I need to access two databases from my app. I'm trying to use scoped_session helper: SessionA = scoped_session(sessionmaker(autoflush=True, transactional=False)) SessionB = scoped_session(sessionmaker(autoflush=True, transactional=False)) ... mapper(SessionA.mapper, ClassFromA ...) mapper(SessionB.mapper, ClassFromB ...) But when I try to query against SessionA it looks for a table_a in database B. How do I separate two sessions properly? if you are using multiple scoped sessions you won't be able to use Session.mapper - the idea of Session.mapper is that all instances get tied to a single contextual session. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
