What is the alternative for Entity.java in python version? I do not want any data model. I want my entities without a predefined structure. I just want them to be key and value pairs as the above Entity.java is.
Can I do it in Python version?
views:
36answers:
2
+1
A:
Try the Expando class.
class MyModel(db.Expando)
pass
You can then add properties by simply setting the value. And they can be removed too.
edit: I should also have mentioned the dynamic properties method. It will return the list of properties defined for a particular entity.
Robert Kluin
2010-10-04 16:26:19
It seems working. But Expando extends Model. Is there anything lower than Model that I can access?
Rajesh
2010-10-04 17:03:07
If you want something lower level see Nick's reply. Check out Tim's reply to this (http://groups.google.com/group/google-appengine-python/browse_thread/thread/a54bd7146045971/90a9f4f442665033) thread. He gives an example of how you can directly access datastore objects as dictionaries.
Robert Kluin
2010-10-04 17:32:38
+5
A:
The 'low level' API is in google.appengine.api.datastore. There's no public documentation for it, but the module itself has fairly complete docstrings.
Nick Johnson
2010-10-04 17:12:28