Eventually I used the ObjectAdded event and tested to see whether a copy has
been made:
def handleCostEstimateAdded(object, event):
"""
"""
assert object.portal_type == 'CostEstimate'
# # intercept copy event and generate the correct id and title for
# # the copied object
if event.newName.startswith('copy'):
ce_id = object.generateUniqueId('CostEstimate')
object.edit(id=ce_id, title=ce_id)
Rather hacky I would admit, but works well.
Thanks again!
On Fri, Jun 6, 2008 at 11:09 AM, Maurits van Rees <
[EMAIL PROTECTED]> wrote:
> Arno Blumer, on 2008-06-06:
> > I am trying to intercept the "copy" event for a specific type, so that I
> can
> > generate a customized id for the copied object.
> > In my old Plone 2.5.2 system I have always overridden generatUniqueId,
> where
> > I generate a custom id for this type when it
> > is created, in the format 'XYZ.CE001'.
> > Now, in Plone 3, I also want to generate the same custom id when an
> object
> > is copied, so I use generateUniqueId again in my handler.
> > (Both the id and title of the object is set to the same custom generated
> id)
> >
> > I have the following subscriber in my configure.zcml:
> >
> ><subscriber
> > for="Products.ProjectManager.interfaces.ICostEstimate
> > zope.lifecycleevent.interfaces.IObjectCopiedEvent"
> > handler=".events.handleCostEstimateCopied"
> > />
> >
> > Then I have the following handler:
> >
> > def handleCostEstimateCopied(self, event):
> > """
> > """
> > assert self.portal_type == 'CostEstimate'
>
> Just for style: this is not a method on a class, so do not use 'self'
> but for example context, object or obj.
>
> > # intercept copy event and generate the correct id and title for
> > # the copied object
> >
> > import transaction
> > transaction.commit()
> > ce_id = event.original.generateUniqueId('CostEstimate')
> > event.object.setId(ce_id)
> > event.object.setTitle(ce_id)
> > event.object.reindexObject()
> >
> > Everything works fine, except for setId.
> > The title is set correctly, but the id remains, for example
> > 'copy_of_XYZ.CE007', whereas it should be 'XYZ.CE008'.
> >
> > Which method must I use instead of setId() or edit(id=newid), since these
> do
> > not change the id.
>
> I would do that setting on self (or context, object, obj) instead of
> event.object, but that may not make a difference.
>
> So, after this event handler has been executed, is the title
> 'XYZ.CE008' and the id 'copy_of_XYZ.CE007'? In that case the
> generateUniqueId method should be fine and setId is not functioning or
> gets overwritten later.
>
> Or is the title also 'copy_of_XYZ.CE007'?
>
> I'm not sure if the transaction.commit() is necessary though it might
> be.
>
> Perhaps adding 'self.unmarkCreationFlag()' somewhere before the
> reindexObject helps; you may want to try that instead of the
> transaction.commit(). Look at the processForm method in
> Archetypes/BaseObject.py which does some renaming when this flag has
> been set. Also, processForm gets overwritten by LinguaPlone in case
> you have that installed; this renames the id in some more cases.
>
> As wild guess, perhaps the setId method is overwritten somewhere,
> making it non-functional. Perhaps try context.update(id=ce_id).
>
> I hope that helps.
>
> --
> Maurits van Rees | http://maurits.vanrees.org/
> Work | http://zestsoftware.nl/
> "This is your day, don't let them take it away." [Barlow Girl]
>
>
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>
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