[Grok-dev] zope.location version for blob copy

Souheil CHELFOUH trollfot at gmail.com
Sun Nov 8 15:24:44 EST 2009

I did some investigations
The problems comes from 2 things :

we can not use zope.app.catalog 3.8.0, since it uses zope.intids and
not zope.app.intids. Therefore :

1. we need to use zope.app.catalog 3.5.1
2. zope.app.catalog 3.5.1 uses
zope.traversing.interfaces.IPhysicallyLocatable while it should now
use zope.location.interfaces.ILocationInfo
3. While using zope.location.interfaces.ILocationInfo, we run into a
problem since zope.app.folder 3.4.0 rootFolder does not provide
4. We can not use zope.app.folder 3.5.1 since it uses a too recent
version of zope.component that breaks Grok's imports

Once this is fixed, it runs perfectly. All tests pass.
I wonder what could be done about this.
zope.location 3.7.0 works correctly with zope.app.catalog 3.5.1 and
zope.app.folder 3.4.0.
We could publish a 3.5.2 version of zope.app.catalog using
zope.location 3.7.0 and a zope.app.folder 3.4.1
I don't think that people will be happy about this.

Other solution is to change Grok to use the last zope.catalog and

I need a solution for myself, even if I end up monkeypatching. I'd
rather use the energy to do something constructive.

- Souheil

2009/11/8 Souheil CHELFOUH <trollfot at gmail.com>:
> Hello Grokkers !
> I'm currently working on the Dolmen clipboard functionalities.
> For a clean handling of the blob copies, i need to use zope.copy.
> I to use, also, a zope.copy.interfaces.ICopyHook, which is only
> trigged in zope.location 3.7.0
> zope.location 3.7.0 works very nicely with an already created
> application but disturbs the creation of a new one:
> [...]
>  File "/home/trollfot/.buildout/eggs/zope.app.catalog-3.5.1-py2.5.egg/zope/app/catalog/catalog.py",
> line 162, in indexAdded
>    index.__parent__.updateIndex(index)
>  File "/home/trollfot/.buildout/eggs/zope.app.catalog-3.5.1-py2.5.egg/zope/app/catalog/catalog.py",
> line 104, in updateIndex
>    for uid, obj in self._visitSublocations() :
>  File "/home/trollfot/.buildout/eggs/zope.app.catalog-3.5.1-py2.5.egg/zope/app/catalog/catalog.py",
> line 99, in _visitSublocations
>    uidutil = component.getUtility(IIntIds)
>  File "/home/trollfot/.buildout/eggs/zope.component-3.4.0-py2.5.egg/zope/component/_api.py",
> line 207, in getUtility
>    raise ComponentLookupError(interface, name)
> ComponentLookupError: (<InterfaceClass zope.app.intid.interfaces.IIntIds>, '')
> I have been struggling with that for a long time now and I don't want
> to stay stuck there.
> Copying is an important features for all kind of applications and this
> needs to be sorted.
> It seems that the problems appear at the creation of the indexes.
> Can anyone help me with that ? It would be nice to fix that behavior
> in the next grok release and that would allow us to use a more recent
> version of zope.location (and other packages that depend on it)
> - Souheil

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