def order_placed(self, ord):
"Handles creation of orders. "
assert (not ord.is_processed())
acc = ord.account
order_ev_pos = ord.group_by_event()
# get the cost for completing the order
cost = sum([self.eval_cost(ev, ps) for (ev,ps) in order_ev_pos])
logger.debug("Order '%s' total sum: %f" % (ord, cost))
# see if the order can be completed
ord.is_successful = (acc.funds >= cost)
if ord.is_successful:
# update the market maker amounts
MarketBalance.accept_order(ord)
# update the account amounts
AccountBalance.accept_order(ord)
# deduct the total transaction cost from the account
acc.funds -= cost
# update buy/sell prices
for (ev, ps) in order_ev_pos:
self.update_prices(ev)
ord.set_processed()
acc.save()
ord.save()
logger.debug("Order '%s' processed!" % (ord,))
def reset_event(self, ev):
"""
Resets the market and account balances (amount of shares held) for each of this event's outcomes.
Calls self.update_prices with the given event
"""
AccountBalance.reset(ev)
MarketBalance.reset(ev)
self.update_prices(ev)
def reset_event(self, ev):
"""
Resets the market and account balances (amount of shares held) for each of this event's outcomes.
Calls self.update_prices with the given event
"""
AccountBalance.reset(ev)
MarketBalance.reset(ev)
self.update_prices(ev)
def __init__(self, acc, out):
self.outcome = out
self.account = acc
if acc:
self.amount = AccountBalance.get(acc, out).amount
def __init__(self, acc, out):
self.outcome = out
self.account = acc
if acc:
self.amount = AccountBalance.get(acc, out).amount
