> cache2 = Image.get_by_key_name('bz3edbdc420cf4daa2529d797e7aa273aefa76a10d')
Your key_name looks more like a full key. For that use
cache2 = Image.get(db.Key('bz3edbdc420cf4daa2529d797e7aa273aefa76a10d'))
or just
cache2 = Image.get('bz3edbdc420cf4daa2529d797e7aa273aefa76a10d')
http://code.google.com/appengine/docs/datastore/modelclass.html#Model_get
2008/12/26 some_developer <[email protected]>:
>
> Hi.
> I have two models. Each object of this models has a key name. When I
> trying to get objects by they key names, with first model all OK, but
> with second model I get None. Both key names are proper.
>
> This is the first model:
>
> class ThreadCache(db.Model):
> response = PickledProperty(required = True) #my property,
> nevermind
> pub_date = db.DateTimeProperty(auto_now_add = True)
>
> And this model return None by any correct key name:
>
> class Image(db.Model):
> content = db.BlobProperty(required = True)
> type = db.StringProperty(required = True)
>
> That's how I getting objects:
>
> cache1 = ThreadCache.get_by_key_name('b-379') #return object
> cache2 = Image.get_by_key_name
> ('bz3edbdc420cf4daa2529d797e7aa273aefa76a10d') #return None
>
> What I must know about key names? And why I have problem only with the
> second model?
> >
>
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