Hi roderic,
You can't use a an App Engine datastore ReferenceProperty to refer to
a Django model instance.
-Nick Johnson
On Wed, May 27, 2009 at 12:51 PM, roderic <rode...@gmail.com> wrote:
>
> Hello,
> The problem that I'm having is that my cron job seems to break on the
> import of my models. The traceback looks like this:
>
> <class 'google.appengine.ext.db.KindError'>: reference_class must be
> Model or _SELF_REFERENCE
> Traceback (most recent call last):
> File "/base/data/home/apps/rcapp01/1.333786861669922384/cron.py",
> line 1, in <module>
> from callme.models import CAction
> File "/base/data/home/apps/rcapp01/1.333786861669922384/callme/
> models.py", line 9, in <module>
> class CUser(db.Model):
> File "/base/data/home/apps/rcapp01/1.333786861669922384/callme/
> models.py", line 11, in CUser
> user = db.ReferenceProperty(User)
> File "/base/python_lib/versions/1/google/appengine/ext/db/
> __init__.py", line 2577, in __init__
> raise KindError('reference_class must be Model or
> _SELF_REFERENCE')
>
> The code in question deals with the ReferenceProperty that I am using
> to extend the basic django user. The code for that looks like this:
>
> from google.appengine.ext import db
> from django.contrib.auth.models import User
>
> # Create your models here.
> class CUser(db.Model):
> user = db.ReferenceProperty(User)
>
> I don't seem to have much problem interacting with the profile through
> the web requests, but when the cron job tries to run it blows up. I am
> not going to include the cron job as you can see that the traceback
> happens on the import.
>
> Any thoughts on this? Why would the cron job be blowing up on import?
> Have I set something up wrong? The development environment doesn't
> seem to blow up when this happens.
>
> Thanks in advance.
>
> >
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