[Grok-dev] strategy for losing the zope.app packages

[Souheil CHELFOUH]

That sounds like the right way to proceed.
Just one thing : zodbupdate doesn't run with ztk1.0 at the moment

2009/12/3 Martijn Faassen <faassen at startifact.com>:
> Souheil CHELFOUH wrote:
>> I volunteer for that.
>
> Great!
>
>> After a first look, when i first started to work with Michael on
>> 1.1a1, I don't think we have persistency problem at all.
>> The only buggers could be the utilities. It happens that from 1.0,
>> they already come from zope.x and not zope.app.x
>> So all my old apps migrated with no problem.
>
> I trust we won't have much in the way of persistence problems, as most
> people will have subclassed either grok.Model or grok.Container in their
> apps, but it's of course entirely possible something from zope.app was
> indeed stored in the ZODB (with a direct reference to a class in zope.app)
>
> If the old package is still there with a backwards compatible import,
> the ZODB won't break a the import will succeed. But unless you run
> zodbupgrade to fix those links in your ZODB you will have problems once
> you lose the zope.app package.
>
> So we should document the following upgrade procedure:
>
> * install Grok ZTK edition plus grokcore.backward1
>
> * run zodbupgrade
>
> * then lose grokcore.backward1
>
> * if imports now break, look through CHANGES.txt of package and import
> from new package instead. (this could be better..)
>
> Regards,
>
> Martijn
>
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