[Modeling-users] saveChanges() doesn't change globalID

[Marcos D. <md...@vi...>]

User-Agent: Mutt/1.3.28i


    hi all. I'm experimenting since a few months w/ building a rollback
scheme above modeling. the problems I found were this:

    given a EditingContext, there a re two kind of objects registered at
the moment fo saveChanges(): from-database ones (globalID() is an
instance of KeyGlobalID), and new ones (globalID() is an instance of
TemporaryGlobalID). when I roll back, I do the following:

* 'hold' the model: any from-database object gets hold by means of
snapshot_raw(). new ones are simply forgoten.

* build a new EditingContext.

* repopulate it with the old objects. from-database ones get reinserted
via faultForRaw(), and new ones simply requesting a new instance of the
proper class.

    this works fine, but a probblem arises: if I create a new object,
add it to the EditingContext(), then saveChenges(), it *sometimes* gets
converted to a from-database one (which is what I would mostly spect;
see definition above) and sometimes it doesn't (which would not be so
bad if it wouldn't be just 'sometimes'). keep in mind that now I'm just
playing with only one entity, so it doesn't seem to be an entity
problem, if you know what I mean.

    is this possible (the sometimes part), could it be a bug in
Modeling, or I'm just getting lucky sometimes? which would be the
spected behaviour? if you need some code I can post it tomorrow.

    TIA.