Thanks for the answers, actually this thread-head-post had been deleted, sorry for the duplicate threads and now dangling replies in this one,
Martin On Mar 19, 3:11 pm, a...@svilendobrev.com wrote: > this clone stuff comes over and over and over... > i have similar .copy() in dbcook unfinished.. > > 1) see prop.direction as one of (ONETOMANY, MANYTOONE, MANYTOMANY) to > figure the "direction" of the relation. why does it matter which > side you're on? as long as u copy one side only.. > > as of 2) .. do u have backref=... declared on the relation()? > > ciao > svil > > unfinished:http://dbcook.svn.sourceforge.net/viewvc/dbcook/trunk/dbcook/usage/co... > another thing works but may or may not > help:http://dbcook.svn.sourceforge.net/viewvc/dbcook/trunk/dbcook/aboutrel... > > On Thursday 19 March 2009 15:44:50 Martin wrote: > > > I've written my own deep_clone for SA Object Trees, which is > > exploiting quite some lowlevel calls inside SA > > > This has brought me to reimplement the cloning for every major > > version change, I started in 0.3, updated to 0.4 with some major > > rework, but I simply cant get it to work with 0.5.2, and I wonder > > how or why?!?!?! > > > there is 2 major reasons I could identify > > > 1) is_backref allowed to judge which side of a backref I was on, > > now no similar property exists, which also means I run into > > circular CLONEs, which to prevent, there only seems to be > > (v.property.backref and v.property.backref.kwargs == {}) to judge > > what side I'm on > > > 2) when I have a InstrumentedList property, i.e. I would getattr > > (newobj, 'property').append(elem), this would automatically set > > elem.`backref ` to the correct value, whereas now this is not > > updated until flushed, which causes me tremendous consternation > > > for (2) I have no solution, this means I cant clone anymore without > > major rework? am I stupid? > > --~--~---------~--~----~------------~-------~--~----~ 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 sqlalchemy+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
