http://code.google.com/appengine/docs/python/datastore/modelclass.html#Model_get_by_key_name
2011/1/16 Zeynel :
> Hello,
>
> I am reading this sample app called overheard
> http://code.google.com/appengine/articles/overheard.html to add
> ranking functionality to my app.
>
>
> His models.set_vote() function has a line
>
> vote = Vote.get_by_key_name(key_names = user.email(), parent = quote)
>
> and his Vote model is
>
> class Vote(db.Model):
> """Storage for a single vote by a single user on a single quote.
>
> Index
> key_name: The email address of the user that voted.
> parent: The quote this is a vote for.
>
> Properties
> vote: The value of 1 for like, -1 for dislike.
> """
> vote = db.IntegerProperty(default=0)
>
> Where does he get the key_names? They are not included in the Vote?
>
> models.py is here:
> http://code.google.com/p/google-app-engine-samples/source/browse/trunk/overheard/models.py
>
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