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Allow country specific tax rules (#1714)

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Raphael Michel
2020-07-08 15:00:13 +02:00
committed by GitHub
parent 1c9a1b5e02
commit 6e9d921af6
20 changed files with 716 additions and 161 deletions
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46
src/pretix/base/models/tax.py
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@@ -164,16 +164,39 @@ class TaxRule(LoggedModel):
def has_custom_rules(self):
return self.custom_rules and self.custom_rules != '[]'
def tax(self, base_price, base_price_is='auto', currency=None):
def tax_rate_for(self, invoice_address):
if not self._tax_applicable(invoice_address):
return Decimal('0.00')
if self.has_custom_rules:
rule = self.get_matching_rule(invoice_address)
if rule.get('action', 'vat') == 'vat' and rule.get('rate') is not None:
return Decimal(rule.get('rate'))
return Decimal(self.rate)
def tax(self, base_price, base_price_is='auto', currency=None, override_tax_rate=None, invoice_address=None,
subtract_from_gross=Decimal('0.00')):
from .event import Event
try:
currency = currency or self.event.currency
except Event.DoesNotExist:
pass
if self.rate == Decimal('0.00'):
rate = Decimal(self.rate)
if override_tax_rate is not None:
rate = override_tax_rate
elif invoice_address:
adjust_rate = self.tax_rate_for(invoice_address)
if adjust_rate != rate:
normal_price = self.tax(base_price, base_price_is, currency, subtract_from_gross=subtract_from_gross)
base_price = normal_price.net
base_price_is = 'net'
subtract_from_gross = Decimal('0.00')
rate = adjust_rate
if rate == Decimal('0.00'):
return TaxedPrice(
net=base_price, gross=base_price, tax=Decimal('0.00'),
rate=self.rate, name=self.name
net=base_price - subtract_from_gross, gross=base_price - subtract_from_gross, tax=Decimal('0.00'),
rate=rate, name=self.name
)
if base_price_is == 'auto':
@@ -183,19 +206,22 @@ class TaxRule(LoggedModel):
base_price_is = 'net'
if base_price_is == 'gross':
gross = base_price
net = round_decimal(gross - (base_price * (1 - 100 / (100 + self.rate))),
gross = max(Decimal('0.00'), base_price - subtract_from_gross)
net = round_decimal(gross - (gross * (1 - 100 / (100 + rate))),
currency)
elif base_price_is == 'net':
net = base_price
gross = round_decimal((net * (1 + self.rate / 100)),
currency)
gross = round_decimal((net * (1 + rate / 100)), currency)
if subtract_from_gross:
gross -= subtract_from_gross
net = round_decimal(gross - (gross * (1 - 100 / (100 + rate))),
currency)
else:
raise ValueError('Unknown base price type: {}'.format(base_price_is))
return TaxedPrice(
net=net, gross=gross, tax=gross - net,
rate=self.rate, name=self.name
rate=rate, name=self.name
)
@property
@@ -243,7 +269,7 @@ class TaxRule(LoggedModel):
return False
def tax_applicable(self, invoice_address):
def _tax_applicable(self, invoice_address):
if self._custom_rules:
rule = self.get_matching_rule(invoice_address)
return rule.get('action', 'vat') == 'vat'