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Allow country specific tax rules (#1714)

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This commit is contained in:
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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38
src/pretix/base/models/items.py
View File

@@ -448,24 +448,32 @@ class Item(LoggedModel):
return self.event.settings.show_quota_left
return self.show_quota_left
def tax(self, price=None, base_price_is='auto', currency=None, include_bundled=False):
def tax(self, price=None, base_price_is='auto', currency=None, invoice_address=None, override_tax_rate=None, include_bundled=False):
price = price if price is not None else self.default_price
if not self.tax_rule:
t = TaxedPrice(gross=price, net=price, tax=Decimal('0.00'),
rate=Decimal('0.00'), name='')
else:
t = self.tax_rule.tax(price, base_price_is=base_price_is,
currency=currency or self.event.currency)
t = self.tax_rule.tax(price, base_price_is=base_price_is, invoice_address=invoice_address,
override_tax_rate=override_tax_rate, currency=currency or self.event.currency)
if include_bundled:
for b in self.bundles.all():
if b.designated_price and b.bundled_item.tax_rule_id != self.tax_rule_id:
if b.bundled_variation:
bprice = b.bundled_variation.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
bprice = b.bundled_variation.tax(b.designated_price * b.count, base_price_is='gross',
invoice_address=invoice_address,
currency=currency)
else:
bprice = b.bundled_item.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
compare_price = self.tax_rule.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
bprice = b.bundled_item.tax(b.designated_price * b.count,
invoice_address=invoice_address,
base_price_is='gross',
currency=currency)
compare_price = self.tax_rule.tax(b.designated_price * b.count,
override_tax_rate=override_tax_rate,
invoice_address=invoice_address,
currency=currency)
t.net += bprice.net - compare_price.net
t.tax += bprice.tax - compare_price.tax
t.name = "MIXED!"
@@ -673,23 +681,31 @@ class ItemVariation(models.Model):
def price(self):
return self.default_price if self.default_price is not None else self.item.default_price
def tax(self, price=None, base_price_is='auto', currency=None, include_bundled=False):
def tax(self, price=None, base_price_is='auto', currency=None, include_bundled=False, override_tax_rate=None,
invoice_address=None):
price = price if price is not None else self.price
if not self.item.tax_rule:
t = TaxedPrice(gross=price, net=price, tax=Decimal('0.00'),
rate=Decimal('0.00'), name='')
else:
t = self.item.tax_rule.tax(price, base_price_is=base_price_is, currency=currency)
t = self.item.tax_rule.tax(price, base_price_is=base_price_is, currency=currency,
override_tax_rate=override_tax_rate,
invoice_address=invoice_address)
if include_bundled:
for b in self.item.bundles.all():
if b.designated_price and b.bundled_item.tax_rule_id != self.item.tax_rule_id:
if b.bundled_variation:
bprice = b.bundled_variation.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
bprice = b.bundled_variation.tax(b.designated_price * b.count, base_price_is='gross',
currency=currency,
invoice_address=invoice_address)
else:
bprice = b.bundled_item.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
compare_price = self.item.tax_rule.tax(b.designated_price * b.count, base_price_is='gross', currency=currency)
bprice = b.bundled_item.tax(b.designated_price * b.count, base_price_is='gross',
currency=currency,
invoice_address=invoice_address)
compare_price = self.item.tax_rule.tax(b.designated_price * b.count, base_price_is='gross',
currency=currency, invoice_address=invoice_address)
t.net += bprice.net - compare_price.net
t.tax += bprice.tax - compare_price.tax
t.name = "MIXED!"

28
src/pretix/base/models/orders.py
View File

@@ -1813,13 +1813,9 @@ class OrderFee(models.Model):
self.tax_rule = self.order.event.settings.tax_rate_default
if self.tax_rule:
if self.tax_rule.tax_applicable(ia):
tax = self.tax_rule.tax(self.value, base_price_is='gross')
self.tax_rate = tax.rate
self.tax_value = tax.tax
else:
self.tax_value = Decimal('0.00')
self.tax_rate = Decimal('0.00')
tax = self.tax_rule.tax(self.value, base_price_is='gross', invoice_address=ia)
self.tax_rate = tax.rate
self.tax_value = tax.tax
else:
self.tax_value = Decimal('0.00')
self.tax_rate = Decimal('0.00')
@@ -1966,13 +1962,9 @@ class OrderPosition(AbstractPosition):
except InvoiceAddress.DoesNotExist:
ia = None
if self.tax_rule:
if self.tax_rule.tax_applicable(ia):
tax = self.tax_rule.tax(self.price, base_price_is='gross')
self.tax_rate = tax.rate
self.tax_value = tax.tax
else:
self.tax_value = Decimal('0.00')
self.tax_rate = Decimal('0.00')
tax = self.tax_rule.tax(self.price, invoice_address=ia, base_price_is='gross')
self.tax_rate = tax.rate
self.tax_value = tax.tax
else:
self.tax_value = Decimal('0.00')
self.tax_rate = Decimal('0.00')
@@ -2111,6 +2103,10 @@ class CartPosition(AbstractPosition):
includes_tax = models.BooleanField(
default=True
)
override_tax_rate = models.DecimalField(
max_digits=10, decimal_places=2,
null=True, blank=True
)
is_bundled = models.BooleanField(default=False)
objects = ScopedManager(organizer='event__organizer')
@@ -2127,6 +2123,8 @@ class CartPosition(AbstractPosition):
@property
def tax_rate(self):
if self.includes_tax:
if self.override_tax_rate is not None:
return self.override_tax_rate
return self.item.tax(self.price, base_price_is='gross').rate
else:
return Decimal('0.00')
@@ -2134,7 +2132,7 @@ class CartPosition(AbstractPosition):
@property
def tax_value(self):
if self.includes_tax:
return self.item.tax(self.price, base_price_is='gross').tax
return self.item.tax(self.price, override_tax_rate=self.override_tax_rate, base_price_is='gross').tax
else:
return Decimal('0.00')

46
src/pretix/base/models/tax.py
View File

@@ -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'