Create an adapter module for google.appengine.ext.db so that Model classes can be serialised easily

[nick]

Take the example:

from google.appengine.ext import db

class Snapshot(db.Model):
    taken = db.DateTimeProperty(auto_add_now=True)
    image = db.BlobProperty()
    name = db.StringProperty(required=True)

snap = Snapshot(name='bla')
snap.image = 'some image data'

when encoding an instance of Snapshot the attributes boil down to:

{'_name': 'bla', '_image': 'some image data', '_taken': datetime.datetime}

plus a few internal attributes that shouldn't be encoded.

An adapter module should be created so that instances of db.Model report the correct attributes, depending on the class definition.

[nick]

previewing always helps ...

[nick]

See  Model Class API for more info.

[nick]

Fixed in r1202.