Thanks a lot, it works perfectly. On a matter of using 0.8 - is it allready stable enough to switch to? (My projects are nothing critical, but still...)
On Wednesday, December 12, 2012 6:11:55 PM UTC+2, Michael Bayer wrote: > > > On Dec 12, 2012, at 4:27 AM, AlexVhr wrote: > > Hi all. > I need to find out if a certain class has one-to-many relations to other > classes, and what exactly this classes are. Something like this: > I'm kind of half way there: > > > def findRelatedClasses(cls): > > #iterate cls.__dict__, find a class member with > > #property.direction.name == ‘ONETOMANY’. > > #Now, to find out which class it links to… > > > > findRelatedClasses(Parent) should return a list of type objects ([Child] > in this instance). Any ideas how to do that? Thanks! > > > property.mapper is the target Mapper and mapper.class_ is the class which > is mapped. > > in 0.7 you want to use class_mapper(cls).iterate_properties() to get at > MapperProperty, don't bother with __dict__ (and even then I'd be using > dir()/getattr() to deal with descriptors). > > There's an improved introspection interface in 0.8, see: > http://docs.sqlalchemy.org/en/rel_0_8/core/inspection.html , you'd use > inspect(cls).relationships. > > -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To view this discussion on the web visit https://groups.google.com/d/msg/sqlalchemy/-/L_y3F-9AOWAJ. To post to this group, send email to [email protected]. 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.
