Jumping into GAE, I found the ReferenceProperty interesting but still
don't fully understand it.

My question can expand on the example from:
http://code.google.com/appengine/docs/python/datastore/creatinggettinganddeletingdata.html

class PetOwner(db.Model):
  name = db.StringProperty()
class Pet(db.Model):
  name = db.StringProperty()
  type = db.StringProperty() # cat, dog, etc.
  owner = db.ReferenceProperty(PetOwner)

Let's do a query to select all cats with a specific owner.

query = db.Query(Pet)
query = Pet.all()
query.filter('type = ', 'Cat')
results = query.fetch(limit=10)
for result in results:
  output = result.name
return output

What can I add to this to filter only those where 'owner' is
'johndoe'?

I tried:
query.filter('owner = ', 'johndoe')

However it fails to return me a result, and I know you can pull the
owner name via 'pet.owner.name' however trying:
query.filter('owner.name = ', 'johndoe')

Also fails, though it made sense for what should work. Does anyone
know the proper method?
--~--~---------~--~----~------------~-------~--~----~
You received this message because you are subscribed to the Google Groups 
"Google App Engine" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to 
[email protected]
For more options, visit this group at 
http://groups.google.com/group/google-appengine?hl=en
-~----------~----~----~----~------~----~------~--~---

Reply via email to