ah, you should be able to get the same effect using uowtrans.dependencies.add((parent_mapper, child_mapper)).
did we already have a big discussion about why you can't get your relation()s to handle this for you ? On May 19, 2010, at 4:00 AM, Tomasz Nazar wrote: > On Sat, Jan 17, 2009 at 3:40 AM, Michael Bayer <mike...@zzzcomputing.com> > wrote: >> On Jan 16, 2009, at 6:13 PM, Tomasz Nazar wrote: >> >>> >>> Do I have control over this behaviour? Or am I doing sth wrong? >>> Thanks for any help..Tomasz >> >> >> you can ! its an exposed internal API but its pretty stable for >> now. Build a SessionExtension like this: >> >> from sqlalchemy.orm.interfaces import SessionExtension >> >> class SetupDependencyExt(SessionExtension): >> def before_flush(self, session, flush_context, instances): >> flush_context.register_dependency(class_mapper(A), >> class_mapper(B)) >> >> where "A" is the mapper that should execute first. then configure >> that extension with your sessionmaker(extension=SetupDependencyExt()). > > Hi Mike, > I'm migrating from 0.4 to 0.6 and this API has been removed - at least > looks like this. Is there any replacement? > I'd still like SQLA to generate some INSERT statements before others, > as it looks SQLA0.4 could'nt handle mappers/relations/dependencies I > have... > This code worked well for me till now... > > Code I have is: > > sessionmaker(...extension=SetupDependencyExt()) > > class SetupDependencyExt(SessionExtension): > > """http://groups.google.com/group/sqlalchemy/browse_thread/thread/2420cbf64ff5a74f > For controlling order of inserts generation for dependent children > by relation > """ > def before_flush(self, session, flush_context, instances): > flush_context.register_dependency(mapper_conference_lang, > mapper_conference_participant) > flush_context.register_dependency(mapper_conference_lang, > mapper_conference_interpreter) > > AttributeError: 'UOWTransaction' object has no attribute 'register_dependency' > > I'd really appreciate any help, as I can't move forward without it. > Thanks - Tomasz > > > -- > _i______'simplicity_is_the_key'__________tomasz_nazar > _ii____'i_am_concern_oriented'________________JKM-UPR > _iii__'patsystem.sf.net'___________________linux_user > _'aspectized.com'___________________________prevayler > > -- > 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.
