#!/usr/bin/env python

from google.appengine.ext import webapp
from google.appengine.ext import db
import simplejson

class JSONProperty(db.Property):
    def get_value_for_datastore(self, model_instance):
        return db.Text(simplejson.dumps(getattr(model_instance, self.name)))

    def make_value_from_datastore(self, value):
        return simplejson.loads(value)

    def datastore_type(self):
        return db.Text

class Ent(db.Expando):
# class Ent(db.Model): # Replace with this to make it work fine
  json = JSONProperty(default={})

def main():
  the_ent = Ent()
  the_ent.json['value'] = 0
  for ent in Ent.all():
    the_ent = ent
  the_ent.json['value'] += 1
  the_ent.put()
  print the_ent.json['value']


if __name__ == '__main__':
  main()