[Zope-dev] ZODB Mountpoint broken?

[Suresh V.]

ZODB Mountpoint distributed with Plone 4.1.2 always seems to create
OFS.Folder even if the container-class is specified.

Also getting a "KeyError: item already present wih same id" due to
_setObject and _setOb both being called.

Am trying to mount a plone.app.folder.folder.ATFolder from a separate
Data.fs using instructions in:

http://plone.org/documentation/kb/mount-zeo-into-plonesite

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[Tres Seaver]

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On 02/28/2012 09:56 PM, Suresh V. wrote:
> ZODB Mountpoint distributed with Plone 4.1.2 always seems to create
> OFS.Folder even if the container-class is specified.
>
> Also getting a "KeyError: item already present wih same id" due to
> _setObject and _setOb both being called.

Can you post the full traceback for that error?

> Am trying to mount a plone.app.folder.folder.ATFolder from a separate
> Data.fs using instructions in:
>
> http://plone.org/documentation/kb/mount-zeo-into-plonesite

Tres.
- --
===================================================================
Tres Seaver +1 540-429-0999 tse...@palladion.com
Palladion Software "Excellence by Design" http://palladion.com
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[Suresh V.]

On Wednesday 29 February 2012 07:31 PM, Tres Seaver wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 02/28/2012 09:56 PM, Suresh V. wrote:
>> ZODB Mountpoint distributed with Plone 4.1.2 always seems to create
>> OFS.Folder even if the container-class is specified.
>>
>> Also getting a "KeyError: item already present wih same id" due to
>> _setObject and _setOb both being called.
>
>
> Can you post the full traceback for that error?
>

In Products.ZODBMountPoint.MountedObject.py around line 373:

# Add a faux object to avoid generating manage_afterAdd() events
# while appeasing OFS.ObjectManager._setObject(), then discreetly
# replace the faux object with a MountedObject.
faux = Folder()
faux.id = mo.id
faux.meta_type = loaded.meta_type
container._setObject(faux.id, faux)
# DM 2005-05-17: we want to keep our decision about automatic
# mount point creation
#del mo._create_mount_points
container._setOb(faux.id, mo)
setMountPoint(container, faux.id, mo)

The error was raised on the _setOb() line.

Removing the whole faux dance made everything work correctly. May be
this is not necessary any more. Should I create a ticket?

[Suresh V.]

On Wednesday 29 February 2012 07:31 PM, Tres Seaver wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> On 02/28/2012 09:56 PM, Suresh V. wrote:
>> ZODB Mountpoint distributed with Plone 4.1.2 always seems to create
>> OFS.Folder even if the container-class is specified.
>>
>> Also getting a "KeyError: item already present wih same id" due to
>> _setObject and _setOb both being called.
>
>
> Can you post the full traceback for that error?

2012-03-01 09:40:22 ERROR Zope.SiteErrorLog 1330575022.340.697799684491
http://localhost:8080/Plone/AllContent/manage_addProduct/ZODBMountPoint/manage_addMounts
Traceback (innermost last):
Module ZPublisher.Publish, line 126, in publish
Module ZPublisher.mapply, line 77, in mapply
Module ZPublisher.Publish, line 46, in call_object
Module Products.ZODBMountPoint.MountedObject, line 387, in
manage_addMounts
Module plone.folder.ordered, line 63, in _setOb
Module Products.BTreeFolder2.BTreeFolder2, line 244, in _setOb
KeyError: 'There is already an item named "plant".'