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Order changes: Do not allow to double-book add-ons (Z#23220592) (#5851)

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* Order changes: Do not allow to double-book add-ons

* tests

* Update src/pretix/presale/templates/pretixpresale/event/fragment_addon_choice.html

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

---------

Co-authored-by: Richard Schreiber <schreiber@pretix.eu>
This commit is contained in:
Raphael Michel
2026-01-29 20:42:43 +01:00
committed by GitHub
parent 0e5e2193ed
commit 26fdcc2872
5 changed files with 101 additions and 38 deletions
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9
src/pretix/presale/views/order.py
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@@ -40,7 +40,7 @@ import logging
import mimetypes
import os
import re
from collections import OrderedDict, defaultdict
from collections import Counter, OrderedDict, defaultdict
from decimal import Decimal
from urllib.parse import quote
@@ -1431,11 +1431,13 @@ class OrderChangeMixin:
'categories': []
}
current_addon_products = defaultdict(list)
current_addon_products_missing = Counter()
for a in p.addons.all():
if a.canceled:
continue
if not a.is_bundled:
current_addon_products[a.item_id, a.variation_id].append(a)
current_addon_products_missing[a.item, a.variation] += 1
for iao in p.item.addons.all():
ckey = '{}-{}'.format(p.subevent.pk if p.subevent else 0, iao.addon_category.pk)
@@ -1473,6 +1475,7 @@ class OrderChangeMixin:
if i.has_variations:
for v in i.available_variations:
v.initial = len(current_addon_products[i.pk, v.pk])
current_addon_products_missing[i, v] = 0
if v.initial and i.free_price:
a = current_addon_products[i.pk, v.pk][0]
v.initial_price = TaxedPrice(
@@ -1488,6 +1491,7 @@ class OrderChangeMixin:
i.expand = any(v.initial for v in i.available_variations)
else:
i.initial = len(current_addon_products[i.pk, None])
current_addon_products_missing[i, None] = 0
if i.initial and i.free_price:
a = current_addon_products[i.pk, None][0]
i.initial_price = TaxedPrice(
@@ -1509,7 +1513,8 @@ class OrderChangeMixin:
'min_count': iao.min_count,
'max_count': iao.max_count,
'iao': iao,
'items': [i for i in items if not i.require_voucher]
'items': [i for i in items if not i.require_voucher],
'items_missing': {k: v for k, v in current_addon_products_missing.items() if v},
})
return positions