Hi,
One additional question, what happens when you call db.get() on the value
returned from dygmodel.ChatWordStats.timespan.get_value_for_datastore(cws)?
Does this get the proper entity. I've never seen this before, so I'm not
sure what exactly is occurring here.
-Marzia
On Sun, Jan 4, 2009 at 9:16 AM, dloomer <dloo...@gmail.com> wrote:
>
> I worked around that last problem, focused on some other things, but
> now I'm running into the issue again.
>
> Same model definitions as above; now getting the error trying to
> reference a StatsTimeSpan property of ChatWordStats. It shouldn't
> matter, but for completeness an abbreviated definition of
> StatsTimeSpan is as follows:
>
> class StatsTimeSpan(db.Model):
> timespanvalue = db.IntegerProperty()
> year_central = db.IntegerProperty()
> month_central = db.IntegerProperty()
> day_central = db.IntegerProperty()
> hour_central = db.IntegerProperty()
> postcount = db.IntegerProperty(required=True,default=0)
> totalduration = db.FloatProperty(required=True,default=float(0))
> date = db.DateTimeProperty(auto_now_add=True)
>
> The code raising the error:
>
> cws = dygmodel.ChatWordStats.get(key_val)
> logging.info("cws.key()=" + str(cws.key()))
> logging.info
> ("dygmodel.ChatWordStats.timespan.get_value_for_datastore
> (cws)=" + str(dygmodel.ChatWordStats.timespan.get_value_for_datastore
> (cws)))
> cws.timespan.key()
>
> cws.key() is logged as
>
> ahJkeWluZ2dpcmFmZmVsZWFndWVyLAsSDUNoYXRXb3JkU3RhdHMiGWN3c190c18xXzBfMF8wXzBfY3dfX2FsbF8M.
> At
> http://appengine.google.com/datastore/edit?app_id=
> <myAppID>&key=ahJkeWluZ2dpcmFmZmVsZWFndWVyLAsSDUNoYXRXb3JkU3RhdHMiGWN3c190c18xXzBfMF8wXzBfY3dfX2FsbF8M
> this shows a timespan key value of
> ahJkeWluZ2dpcmFmZmVsZWFndWVyHwsSDVN0YXRzVGltZVNwYW4iDHRzXzFfMF8wXzBfMAw.
> dygmodel.ChatWordStats.timespan.get_value_for_datastore(cws) is logged
> as that same key value,
> ahJkeWluZ2dpcmFmZmVsZWFndWVyHwsSDVN0YXRzVGltZVNwYW4iDHRzXzFfMF8wXzBfMAw.
> That key value resolves fine in DataViewer if I go to
> http://appengine.google.com/datastore/edit?app_id=
> <myAppId>&key=ahJkeWluZ2dpcmFmZmVsZWFndWVyHwsSDVN0YXRzVGltZVNwYW4iDHRzXzFfMF8wXzBfMAw.
>
> However, the cws.timespan.key() line, or any alternative code trying
> to reference a property of cws.timespan, throws the "ReferenceProperty
> failed to be resolved" error.
>
> Marzia, you have my app ID from a private e-mail regarding a different
> thread -- the one regarding the Datastore Indices Count quota.
>
> On Dec 29 2008, 1:53 pm, Marzia Niccolai <ma...@google.com> wrote:
> > Hi,
> >
> > What is the value of the key when you use get_value_for_datastore on this
> > property? See recipe:
> http://appengine-cookbook.appspot.com/recipe/getting-dbreferenceprope...
> >
> > -Marzia
> >
> > On Sun, Dec 28, 2008 at 11:41 AM, dloomer <dloo...@gmail.com> wrote:
> >
> > > Getting a "ReferenceProperty failed to be resolved" error and I can
> > > swear up and down that the ReferenceProperty *should* be able to be
> > > resolved -- i.e., this is not your classic case of referenced entities
> > > being deleted, as the data is all there.
> >
> > > Model definition (abridged):
> >
> > > class ChatWordStats(db.Model):
> > > chatword = db.ReferenceProperty(ChatWord)
> > > timespan = db.ReferenceProperty(StatsTimeSpan)
> > > date = db.DateTimeProperty(auto_now_add=True)
> >
> > > class TeamChatWordStats(db.Model):
> > > team = db.ReferenceProperty(Team,required=True)
> > > chatwordstats = db.ReferenceProperty(ChatWordStats)
> > > date = db.DateTimeProperty(auto_now_add=True)
> >
> > > offending code (this has worked fine for thousands of entities, then
> > > just gets stuck on this one):
> >
> > > tcws = dygmodel.TeamChatWordStats.get(key_val)
> > > cws = tcws.chatwordstats
> >
> > > The first line works, and the second line gives the error. The
> > > key_val for the TeamChatWordStats entity is
> >
> > >
> ahJkeWluZ2dpcmFmZmVsZWFndWVyPAsSEVRlYW1DaGF0V29yZFN0YXRzIiV0Y3dzX3RfNV9jd3N
> fdHNfM18yMDA1XzNfMV8wX2N3X19hbGxfDA.
> > > Looking up the entity in the Data Viewer of my application console,
> > > that shows a chatwordstats property with a key of
> >
> > >
> ahJkeWluZ2dpcmFmZmVsZWFndWVyLwsSDUNoYXRXb3JkU3RhdHMiHGN3c190c18zXzIwMDVfM18
> xXzBfY3dfX2FsbF8M.
> > > This key also resolves fine in the Data Viewer.
> >
> > > And, just in case, I verified that both ReferenceProperty values on
> > > the ChatWordStats entity resolve as well.
> >
> > > So, where does that leave me? I've double and triple and quadruple-
> > > checked everything and I'm kind of stuck. I can provide my app name
> > > in a private e-mail if asked.
> >
>
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