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Discount: Respect addon grouping in line selection (Z#23220058) (#5782)

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* Discount: Respect addon grouping in line selection (Z#23220058)

* Update src/pretix/base/models/discount.py

Co-authored-by: Richard Schreiber <schreiber@pretix.eu>

---------

Co-authored-by: Richard Schreiber <schreiber@pretix.eu>
This commit is contained in:
Raphael Michel
2026-01-16 15:23:59 +01:00
committed by GitHub
parent efb94265b2
commit 0259899e00
7 changed files with 83 additions and 12 deletions
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8
src/pretix/base/services/pricing.py
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@@ -174,7 +174,9 @@ def apply_discounts(event: Event, sales_channel: Union[str, SalesChannel],
:param event: Event the cart belongs to
:param sales_channel: Sales channel the cart was created with
:param positions: Tuple of the form ``(item_id, subevent_id, subevent_date_from, line_price_gross, is_addon_to, is_bundled, voucher_discount)``
:param positions: Tuple of the form ``(item_id, subevent_id, subevent_date_from, line_price_gross, addon_to_id, is_bundled, voucher_discount)``
``addon_to_id`` does not have to be the proper ID, any identifier is okay, even ``True``/``False`` are accepted, but
a better result may be given if addons to the same main product have the same distinct value.
:param collect_potential_discounts: If a `defaultdict(list)` is supplied, all discounts that could be applied to the cart
based on the "consumed" items, but lack matching "benefitting" items will be collected therein.
The dict will contain a mapping from index in the `positions` list of the item that could be consumed, to a list
@@ -196,9 +198,9 @@ def apply_discounts(event: Event, sales_channel: Union[str, SalesChannel],
).prefetch_related('condition_limit_products', 'benefit_limit_products').order_by('position', 'pk')
for discount in discount_qs:
result = discount.apply({
idx: PositionInfo(item_id, subevent_id, subevent_date_from, line_price_gross, is_addon_to, voucher_discount)
idx: PositionInfo(item_id, subevent_id, subevent_date_from, line_price_gross, addon_to, voucher_discount)
for
idx, (item_id, subevent_id, subevent_date_from, line_price_gross, is_addon_to, is_bundled, voucher_discount)
idx, (item_id, subevent_id, subevent_date_from, line_price_gross, addon_to, is_bundled, voucher_discount)
in enumerate(positions)
if not is_bundled and idx not in new_prices
}, collect_potential_discounts)