Created
December 14, 2012 16:21
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nre refactored function inside an object
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| def _exposure_adjust(self): | |
| """ | |
| Calculates de overall effect of this bet to exposures & stakes | |
| """ | |
| adjustments = { | |
| 'exposure_win': Decimal('0.0'), | |
| 'exposure_place': Decimal('0.0'), | |
| 'stake_win': Decimal('0.0'), | |
| 'stake_place': Decimal('0.0'), | |
| 'stake_sp': Decimal('0.0'), | |
| 'bet_exposure': Decimal('0.0'), | |
| 'bet_payout': Decimal('0.0') | |
| } | |
| exposure_place = 0 | |
| if not self.is_each_way: | |
| stake = self.stake | |
| else: | |
| # retrieve each-way betting details | |
| result_count, result = self._get_each_way_details() | |
| if result_count == 0: | |
| raise BetAcceptFailed | |
| stake = self.stake / 2 | |
| odds_price = ((self.price - 1) / result['place_odds_divisor']) | |
| exposure_place = odds_price * stake | |
| adjustments['stake_place'] = stake | |
| adjustments['exposure_place'] = exposure_place | |
| exposure_win = (self.price - 1) * stake + exposure_place | |
| bet_exposure = exposure_win.quantize(1 / 10 ** 2) | |
| if self.is_starting_price: | |
| if self.price > 0: | |
| adjustments['bet_exposure'] = bet_exposure | |
| adjustments['stake_sp'] = self.stake | |
| else: | |
| adjustments['exposure_win'] = exposure_win | |
| adjustments['stake_win'] = stake | |
| adjustments['bet_exposure'] = bet_exposure | |
| adjustments['bet_payout'] = bet_exposure | |
| return adjustments |
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