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Fix infinite price adjustment loop when combining free prices, country-dependent tax rates, and vouchers

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This commit is contained in:
Raphael Michel
2020-10-12 12:15:13 +02:00
parent 16cf3cec76
commit afc1013d69
4 changed files with 48 additions and 5 deletions
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6
src/pretix/base/services/orders.py
View File

@@ -618,8 +618,10 @@ def _check_positions(event: Event, now_dt: datetime, positions: List[CartPositio
except ItemBundle.MultipleObjectsReturned:
raise OrderError("Invalid product configuration (duplicate bundle)")
price = get_price(cp.item, cp.variation, cp.voucher, bprice, cp.subevent, custom_price_is_net=False,
custom_price_is_tax_rate=cp.override_tax_rate,
invoice_address=address, force_custom_price=True, max_discount=max_discount)
pbv = get_price(cp.item, cp.variation, None, bprice, cp.subevent, custom_price_is_net=False,
custom_price_is_tax_rate=cp.override_tax_rate,
invoice_address=address, force_custom_price=True, max_discount=max_discount)
changed_prices[cp.pk] = bprice
else:
@@ -631,10 +633,10 @@ def _check_positions(event: Event, now_dt: datetime, positions: List[CartPositio
price = get_price(cp.item, cp.variation, cp.voucher, cp.price, cp.subevent, custom_price_is_net=False,
addon_to=cp.addon_to, invoice_address=address, bundled_sum=bundled_sum,
max_discount=max_discount)
max_discount=max_discount, custom_price_is_tax_rate=cp.override_tax_rate)
pbv = get_price(cp.item, cp.variation, None, cp.price, cp.subevent, custom_price_is_net=False,
addon_to=cp.addon_to, invoice_address=address, bundled_sum=bundled_sum,
max_discount=max_discount)
max_discount=max_discount, custom_price_is_tax_rate=cp.override_tax_rate)
if max_discount is not None:
v_budget[cp.voucher] = v_budget[cp.voucher] + current_discount - (pbv.gross - price.gross)

3
src/pretix/base/services/pricing.py
View File

@@ -11,6 +11,7 @@ from pretix.base.models.tax import TAXED_ZERO, TaxedPrice, TaxRule
def get_price(item: Item, variation: ItemVariation = None,
voucher: Voucher = None, custom_price: Decimal = None,
subevent: SubEvent = None, custom_price_is_net: bool = False,
custom_price_is_tax_rate: Decimal=None,
addon_to: AbstractPosition = None, invoice_address: InvoiceAddress = None,
force_custom_price: bool = False, bundled_sum: Decimal = Decimal('0.00'),
max_discount: Decimal = None, tax_rule=None) -> TaxedPrice:
@@ -66,7 +67,7 @@ def get_price(item: Item, variation: ItemVariation = None,
price = tax_rule.tax(max(custom_price, price.net), base_price_is='net',
invoice_address=invoice_address, subtract_from_gross=bundled_sum)
else:
price = tax_rule.tax(max(custom_price, price.gross), base_price_is='gross',
price = tax_rule.tax(max(custom_price, price.gross), base_price_is='gross', gross_price_is_tax_rate=custom_price_is_tax_rate,
invoice_address=invoice_address, subtract_from_gross=bundled_sum)
else:
price = tax_rule.tax(price, invoice_address=invoice_address, subtract_from_gross=bundled_sum)