def post(self, call): ids = Offer.allocate_ids(size=1) user = self.user call = Key(urlsafe=call).get() taglio = self.request.get('taglio') offerta = self.request.get('offerta') o = Offer(id=ids[0]) o.team = user.key o.cut = taglio o.price = int(offerta) o.put() call.offers.append(o.key) call.put() self.render_template('message.html', params=dict(message="offerta ricevuta"))