Hi Norbert, what about objects which have been written to mongo with the old version and will be read with the new version. Can they be read/found with the new version? Or is there a migration needed?
Regards Sabine On Thu, May 8, 2014 at 11:30 PM, Norbert Hartl <norb...@hartl.name> wrote: > I needed to change the way ObjectIds are read from and written to BSON. > BSON is a format that encodes its byte contents little endian. In mongo > database the format of ObjectIds is different. The way an ObjectId is > encoded is big endian. You can see this if you compare the outputs for an > object when read from mongo shell and from pharo. The ids won’t match. > > If you do „normal“ stuff with mongo it is unlikely you have noticed the > effect. An OID is read the wrong way but also written the wrong way which > makes it right again from the mongo database perspective. But it won’t work > if you use a mixed query setting. Meaning reading an OID and requesting the > database using javascript expression. This will fail. > > I’m writing this because I’m not sure the change can break existing > software. The change is not included in the stable version, yet. If you > want to test then load #bleedingEdge and report any problem that might > occur. I will use the new behaviour and will take the freedom to make it > stable if it works for some time. > > FYI, > > Norbert > > >
