python - Getting implicit property names on a db.Model in Google App Engine? -

how can access implicit property names of db.model in google app engine? in particular, assume have following:

class foo(db.model):   specific = db.integerproperty()   class bar(db.model):  foo = db.referenceproperty(foo, collection_name = "bars")

if attempt property names on foo, so:

my_foo = foo(specific = 42) key, prop in my_foo.properties().iteritems()     print "here bars won't show up"

then my_foo.bars property doesn't show up. or totally mistaken?

any appreciated

edited model python, not ruby

(that model definition looks strange hybrid of python , ruby.)

i'm not clear on you're trying achieve here, can list of model property members using introspection:

[x x in dir(foo) if isinstance(getattr(foo,x), db.property)]

if you're trying add instances of bar foo, should create new bar instances foo fields pointing @ foo instance:

foo = foo(specific=42) foo.put() bar(foo=foo).put() bar(foo=foo).put() logging.info("foo bars: %r" % list(foo.bars))

ERT