Fix context

src/pretix/presale/productlist.py

@@ -20,6 +20,7 @@
 # <https://www.gnu.org/licenses/>.
 #
 import sys
+from collections import Counter
 from datetime import datetime
 from typing import Optional
 
@@ -472,3 +473,11 @@ def _item_num_options(item):
 
 def get_item_option_count(items):
     return sum(_item_num_options(item) for item in items)
+
+
+def get_item_var_sums(positions, subevent):
+    itemvarsums = Counter()
+    for pos in positions:
+        if pos.subevent == subevent:
+            itemvarsums[pos.variation or pos.item] += 1
+    return itemvarsums

src/pretix/presale/templates/pretixpresale/event/fragment_product_list.html

@@ -125,10 +125,10 @@
                                 <div class="col-md-8 col-sm-6 col-xs-12">
                                     <h{{ headline_level|default:3|add:2 }} class="h5" id="{{ form_prefix }}item-{{ item.pk }}-{{ var.pk }}-legend">
                                         {{ var }}
-                                        {% if cart.itemvarsums|getitem:var %}
+                                        {% if itemvarsums|getitem:var %}
                                             <span class="textbubble-success">
                                                 {% icon "shopping-cart" %}
-                                                {% blocktrans trimmed count amount=cart.itemvarsums|getitem:var %}
+                                                {% blocktrans trimmed count amount=itemvarsums|getitem:var %}
                                                     {{ amount }}× in your cart
                                                 {% plural %}
                                                     {{ amount }}× in your cart
@@ -299,10 +299,10 @@
                         <div class="product-description {% if item.picture %}with-picture{% endif %}">
                             <h{{ headline_level|default:3|add:1 }} class="h4" id="{{ form_prefix }}item-{{ item.pk }}-legend">
                                 {{ item.name }}
-                                {% if cart.itemvarsums|getitem:item %}
+                                {% if itemvarsums|getitem:item %}
                                     <span class="textbubble-success">
                                         {% icon "shopping-cart" %}
-                                        {% blocktrans trimmed count amount=cart.itemvarsums|getitem:item %}
+                                        {% blocktrans trimmed count amount=itemvarsums|getitem:item %}
                                             {{ amount }}× in your cart
                                         {% plural %}
                                             {{ amount }}× in your cart

src/pretix/presale/views/__init__.py

@@ -33,7 +33,7 @@
 # License for the specific language governing permissions and limitations under the License.
 import copy
 import warnings
-from collections import Counter, defaultdict
+from collections import defaultdict
 from datetime import datetime, timedelta
 from decimal import Decimal
 from functools import wraps
@@ -266,10 +266,6 @@ class CartMixin:
             minutes_left = None
             seconds_left = None
 
-        itemvarsums = Counter()
-        for p in cartpos:
-            itemvarsums[p.variation or p.item] += 1
-
         return {
             'positions': positions,
             'invoice_address': self.invoice_address,
@@ -291,7 +287,6 @@ class CartMixin:
                 not self.request.event.settings.display_net_prices and
                 sum(c.price_includes_rounding_correction for c in positions) + sum(f.price_includes_rounding_correction for f in fees)
             ),
-            'itemvarsums': itemvarsums,
             'current_selected_payments': [
                 p for p in self.current_selected_payments(lcp, fees, self.invoice_address)
                 if p.get('multi_use_supported')

src/pretix/presale/views/cart.py

@@ -70,7 +70,8 @@ from pretix.helpers.http import redirect_to_url
 from pretix.helpers.safedownload import check_token
 from pretix.multidomain.urlreverse import eventreverse
 from pretix.presale.productlist import (
-    get_item_option_count, item_group_by_category, prepare_item_list_for_shop,
+    get_item_option_count, get_item_var_sums, item_group_by_category,
+    prepare_item_list_for_shop,
 )
 from pretix.presale.views import (
     CartMixin, EventViewMixin, allow_cors_if_namespaced,
@@ -701,6 +702,7 @@ class RedeemView(NoSearchIndexViewMixin, EventViewMixin, CartMixin, TemplateView
         )
 
         context['cart'] = self.get_cart()
+        context['itemvarsums'] = get_item_var_sums(context['cart'].get('raw', []), self.subevent)
         context['show_cart'] = context['cart']['positions']
 
         # Regroup those by category

src/pretix/presale/views/event.py

@@ -72,7 +72,8 @@ from pretix.helpers.http import redirect_to_url
 from pretix.multidomain.urlreverse import eventreverse
 from pretix.presale.ical import get_public_ical
 from pretix.presale.productlist import (
-    get_item_option_count, item_group_by_category, prepare_item_list_for_shop,
+    get_item_option_count, get_item_var_sums, item_group_by_category,
+    prepare_item_list_for_shop,
 )
 from pretix.presale.signals import seatingframe_html_head
 from pretix.presale.views.organizer import (
@@ -244,6 +245,7 @@ class EventIndex(EventViewMixin, EventListMixin, CartMixin, TemplateView):
             context['display_add_to_cart'] = display_add_to_cart
 
         context['cart'] = self.get_cart()
+        context['itemvarsums'] = get_item_var_sums(context['cart'].get('raw', []), self.subevent)
         context['has_addon_choices'] = any(cp.has_addon_choices for cp in get_cart(self.request))
 
         templating_context = PlaceholderContext(event_or_subevent=self.subevent or self.request.event, event=self.request.event)