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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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52
src/pretix/base/services/orders.py
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@@ -34,7 +34,7 @@ from pretix.base.models.orders import (
generate_secret,
)
from pretix.base.models.organizer import TeamAPIToken
from pretix.base.models.tax import TaxedPrice, TaxRule
from pretix.base.models.tax import TaxRule
from pretix.base.payment import BasePaymentProvider, PaymentException
from pretix.base.reldate import RelativeDateWrapper
from pretix.base.services import tickets
@@ -1263,7 +1263,8 @@ class OrderChangeManager:
self._operations.append(self.RegenerateSecretOperation(position))
def change_price(self, position: OrderPosition, price: Decimal):
price = position.item.tax(price, base_price_is='gross')
tax_rule = self._current_tax_rules().get(position.pk, position.tax_rule)
price = tax_rule.tax(price, base_price_is='gross')
if position.issued_gift_cards.exists():
raise OrderError(self.error_messages['gift_card_change'])
@@ -1279,27 +1280,38 @@ class OrderChangeManager:
self._operations.append(self.TaxRuleOperation(position_or_fee, tax_rule))
self._invoice_dirty = True
def recalculate_taxes(self):
def _current_tax_rules(self):
tax_rules = {}
for p in self._operations:
if isinstance(p, self.TaxRuleOperation):
tax_rules[p.position.pk] = p.tax_rule
elif isinstance(p, self.ItemOperation):
tax_rules[p.position.pk] = p.item.tax_rule
return tax_rules
def recalculate_taxes(self, keep='net'):
positions = self.order.positions.select_related('item', 'item__tax_rule')
ia = self._invoice_address
tax_rules = self._current_tax_rules()
for pos in positions:
if not pos.item.tax_rule:
tax_rule = tax_rules.get(pos.pk, pos.tax_rule)
if not tax_rule:
continue
if not pos.price:
continue
charge_tax = pos.item.tax_rule.tax_applicable(ia)
if pos.tax_value and not charge_tax:
net_price = pos.price - pos.tax_value
price = TaxedPrice(gross=net_price, net=net_price, tax=Decimal('0.00'), rate=Decimal('0.00'), name='')
if price.gross != pos.price:
self._totaldiff += price.gross - pos.price
self._operations.append(self.PriceOperation(pos, price))
elif charge_tax and not pos.tax_value:
price = pos.item.tax(pos.price, base_price_is='net')
if price.gross != pos.price:
self._totaldiff += price.gross - pos.price
self._operations.append(self.PriceOperation(pos, price))
new_rate = tax_rule.tax_rate_for(ia)
# We use override_tax_rate to make sure .tax() doesn't get clever and re-adjusts the pricing itself
if new_rate != pos.tax_rate:
if keep == 'net':
new_tax = tax_rule.tax(pos.price - pos.tax_value, base_price_is='net', currency=self.event.currency,
override_tax_rate=new_rate)
else:
new_tax = tax_rule.tax(pos.price, base_price_is='gross', currency=self.event.currency,
override_tax_rate=new_rate)
self._totaldiff += new_tax.gross - pos.price
self._operations.append(self.PriceOperation(pos, new_tax))
def cancel_fee(self, fee: OrderFee):
self._totaldiff -= fee.value
@@ -1345,10 +1357,7 @@ class OrderChangeManager:
if price is None:
price = get_price(item, variation, subevent=subevent, invoice_address=self._invoice_address)
else:
if item.tax_rule and item.tax_rule.tax_applicable(self._invoice_address):
price = item.tax(price, base_price_is='gross')
else:
price = TaxedPrice(gross=price, net=price, tax=Decimal('0.00'), rate=Decimal('0.00'), name='')
price = item.tax(price, base_price_is='gross', invoice_address=self._invoice_address)
if price is None:
raise OrderError(self.error_messages['product_invalid'])
@@ -1599,7 +1608,8 @@ class OrderChangeManager:
'new_price': op.price.gross
})
op.position.price = op.price.gross
op.position._calculate_tax()
op.position.tax_rate = op.price.rate
op.position.tax_value = op.price.tax
op.position.save()
elif isinstance(op, self.TaxRuleOperation):
if isinstance(op.position, OrderPosition):