main.py 文件源码

def CreateTrade():
  """Creates a trade for the user."""
  user_id = users.get_current_user().user_id()
  user_key = ndb.Key('Profile', user_id)
  current_user = user_key.get()
  prediction_key = ndb.Key(urlsafe=request.form['prediction_id'])
  prediction = prediction_key.get()
  if request.form['is_likelihood'] == 'true':
    user_id = users.get_current_user().user_id()
    user_key = ndb.Key('Profile', user_id)
    current_user = user_key.get()
    trade = calculate_trade_from_likelihood(
        float(request.form['likelihood']), prediction, current_user)
    print trade
  else:
    trade = Trade(
        prediction_id=prediction_key,
        user_id=user_key,
        direction=request.form['direction'],
        contract=request.form['contract'],
        quantity=float(request.form['quantity']))
  err = CreateTradeAction(prediction, current_user, trade)
  #TODO replace with error
  if err != 'error':
      flash('You successfully predicted!')
  return redirect('/predictions/' + trade.prediction_id.urlsafe())