[Grok-dev] Persistence issue with grok.Model

Uli Fouquet uli at gnufix.de
Tue Dec 30 08:19:12 EST 2008

Hi there,

Brandon Craig Rhodes wrote:
> Andreas Jung <lists at zopyx.com> writes:
> > I am current encountering a persistence issue ... The instance dict of
> > a Job instance holds the **kw dict until I restart my Grok instance.
> > After the restart the instance dict is empty.
> Could the ZODB simply be lazy about re-populating the object attributes
> until you first cause a "getattr" by trying to look at one of them?

That's what I would suspect too.

>   Try
> adjusting that last method of yours to this:
>     def getJobs(self):
>         lst = list()
>         for id, job in self.context['accounting'].items():
>             print id, job.__dict__
>             try:
>                 a = job.a
>             except AttributeError:
>                 pass
>             print id, job.__dict__
>             lst.append(job.__dict__.copy())
>         return lst

Or you replace


simply by


which should really update the object.

Best regards,


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