[Zope3-Users] Re: Request in Zope3-Thread

[Philipp von Weitershausen]

Markus Leist wrote:
> i have created a thread in my zope3-application like the zope.sendmail.QueueProcessorThread.
> 
> What i want to do: "fake" a request-context to get a local Utility 
> (via Sitemanager) configured in ZODB and call some methods which will
> change some object-attributes in ZODB.

You'll have to open a new connection to the database in the thread and 
get the root object from it (you'll have to give the thread a reference 
to the database, which can be accessed from any persistent object thru 
obj._p_jar, IIRC):

   conn = db.open()
   root = conn.root()
   root_folder = root['Application']

Now you can traverse to the site that contains the local utilities 
(unless that's the root_folder) and make the current active site 
(current = for this particular thread):

   from zope.app.component.hooks import setSite
   site = root_folder['path']['to']['the']['site']
   setSite(site)

Now do your component lookups, object modifications, etc. Don't forget 
to commit the transaction at the end:

   import transaction
   transaction.commit()

and close the connection:

   conn.close()


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