Andreas Jung ha scritto:
On 11.06.09 11:24, Maurits van Rees wrote:
Andreas Jung, on 2009-06-11:
Hi there,
following use case: an AT-Event derived content-type contains provides
a "create sub-event" link within its default view. Clicking on the link
will create a new event and add the new event to a referencefield within
the original event (standard master-slave relationship). This works fine
with invokeFactory() and updating the related fields within a browser view.
However I want to use portal_factory in order to avoid orphan event. Any
idea
how to update the referencefield of the master event after the creating
of the
slave event through portal_factory?
Register a zope 3 event handler for the sub event type and
Products.Archetypes.interfaces.IObjectInitializedEvent
In that handler check if the parent of the object is an instance of
your AT-Event derived content-type and set the reference field.
Object subscriber won't work because the events aren't nested and the
parent container
does not know about the original object :-)
I would use plone.app.relations and pass the relation to the sub object,
instead of using referencefields.
Then you can map it in the dublin core, rdf, and you web become semantic
too :D
Andreas
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