django-currency 0.0.8

概述

简单的django应用程序，处理基本的货币处理、格式化和 manual添加可以使用的汇率 轻松地从一种货币转换为另一种货币

示例用法

fromcurrency.modelsimportCurrency,ExchangeRate,Moneyusd=Currency.objects.create(code='USD',short_name=u'$')eur=Currency.objects.create(code='EUR',short_name=u'€')ExchangeRate.objects.create(base_currency=usd,foreign_currency=eur,rate=1/1.3)print(usd.get_rate(eur))# Decimal('0.76923')print(eur.get_rate(usd))# Decimal('1.30000')my_money=Money(1531,'USD')print(my_money)# 1531.00000USDmy_money+=Money(23,'USD')print(my_money)# 1554.00000USDprint(my_money.convert_to('EUR'))# 1195.38342EUR# be careful with conversions. Errors accumulate with each conversion. Example:print(my_money.convert_to('EUR').convert_to('USD'))# 1553.99845USD# indirect rates through rates of default currency (USD) are available toohrn=Currency.objects.create(code='UAH',short_name='hrn')rub=Currency.objects.create(code='RUB',short_name='rub')ExchangeRate.objects.create(base_currency=default_currency,foreign_currency=hrn,rate='0.125')# get stored value:rate1=ExchangeRate.objects.get(base_currency=default_currency,foreign_currency=hrn)ExchangeRate.objects.create(base_currency=default_currency,foreign_currency=rub,rate='0.03125')# get stored value:rate2=ExchangeRate.objects.get(base_currency=default_currency,foreign_currency=rub)self.assertEqual(hrn.get_rate(rub),rate1.rate/rate2.rate)