Initial steps

doc/_templates/index.html

@@ -54,6 +54,23 @@
             </p>
         </div>
     </div>
+    <div class="sectionbox">
+        <div class="icon">
+            <a href="storefrontapi/index.html">
+                <span class="fa fa-shopping-cart fa-fw"></span>
+            </a>
+        </div>
+        <div class="text">
+            <a href="storefrontapi/index.html">
+                <strong>Storefront API</strong>
+            </a>
+            <p>
+                Documentation and reference of the headless shopping API exposed by pretix for building a custom
+                storefront.
+            </p>
+        </div>
+    </div>
+    <div class="clearfix"></div>
     <div class="sectionbox">
         <div class="icon">
             <a href="development/index.html">
@@ -68,7 +85,6 @@
                 pretix.</p>
         </div>
     </div>
-    <div class="clearfix"></div>
     <div class="sectionbox">
         <div class="icon">
             <a href="plugins/index.html">
@@ -82,19 +98,6 @@
             <p>Documentation and details on plugins that ship with pretix or are officially supported.</p>
         </div>
     </div>
-    <div class="sectionbox">
-        <div class="icon">
-            <a href="contents.html">
-                <span class="fa fa-list fa-fw"></span>
-            </a>
-        </div>
-        <div class="text">
-            <a href="contents.html">
-                <strong>Table of contents</strong>
-            </a>
-            <p>Detailled overview of everything contained in this documentation.</p>
-        </div>
-    </div>
     <div class="clearfix"></div>
 
     <h2>Useful links</h2>

doc/api/fundamentals.rst

@@ -156,6 +156,8 @@ Field specific input errors include the name of the offending fields as keys in
 
 If you see errors of type ``429 Too Many Requests``, you should read our documentation on :ref:`rest-ratelimit`.
 
+.. _`rest-types`:
+
 Data types
 ----------
 

doc/contents.rst

@@ -7,6 +7,7 @@ Table of contents
    user/index
    admin/index
    api/index
+   storefrontapi/index
    development/index
    plugins/index
    license/faq

setup.py

@@ -24,7 +24,6 @@ from pathlib import Path
 
 import setuptools
 
-
 sys.path.append(str(Path.cwd() / 'src'))
 
 

src/pretix/_base_settings.py

@@ -44,6 +44,7 @@ INSTALLED_APPS = [
     'pretix.presale',
     'pretix.multidomain',
     'pretix.api',
+    'pretix.storefrontapi',
     'pretix.helpers',
     'rest_framework',
     'djangoformsetjs',

src/pretix/base/models/orders.py

@@ -3063,6 +3063,38 @@ class Transaction(models.Model):
         return self.tax_value * self.count
 
 
+class CheckoutSession(models.Model):
+    """
+    A checkout session optionally bundles cart positions with additional information. This is historically
+    not required in pretix and currently only used in the Storefront API.
+    """
+    event = models.ForeignKey(
+        Event,
+        verbose_name=_("Event"),
+        on_delete=models.CASCADE
+    )
+    cart_id = models.CharField(
+        max_length=255, unique=True,
+        verbose_name=_("Cart ID (e.g. session key)")
+    )
+    created = models.DateTimeField(
+        verbose_name=_("Date"),
+        auto_now_add=True
+    )
+    customer = models.ForeignKey(
+        Customer,
+        related_name='checkout_sessions',
+        null=True, blank=True,
+        on_delete=models.SET_NULL,
+    )
+    sales_channel = models.ForeignKey(
+        "SalesChannel",
+        on_delete=models.CASCADE,
+    )
+    testmode = models.BooleanField(default=False)
+    session_data = models.JSONField(default=dict)
+
+
 class CartPosition(AbstractPosition):
     """
     A cart position is similar to an order line, except that it is not
@@ -3245,6 +3277,13 @@ class CartPosition(AbstractPosition):
 
 class InvoiceAddress(models.Model):
     last_modified = models.DateTimeField(auto_now=True)
+    checkout_session = models.OneToOneField(
+        CheckoutSession,
+        null=True,
+        blank=True,
+        related_name='invoice_address',
+        on_delete=models.CASCADE
+    )
     order = models.OneToOneField(Order, null=True, blank=True, related_name='invoice_address', on_delete=models.CASCADE)
     customer = models.ForeignKey(
         Customer,

src/pretix/base/services/cross_selling.py

@@ -29,7 +29,7 @@ from typing import List
 from django.utils.functional import cached_property
 
 from pretix.base.models import CartPosition, ItemCategory, SalesChannel
-from pretix.presale.views.event import get_grouped_items
+from pretix.base.storelogic.products import get_items_for_product_list
 
 
 class DummyCategory:
@@ -161,7 +161,7 @@ class CrossSellingService:
         ]
 
     def _prepare_items(self, subevent, items_qs, discount_info):
-        items, _btn = get_grouped_items(
+        items, _btn = get_items_for_product_list(
             self.event,
             subevent=subevent,
             voucher=None,

src/pretix/base/validators.py

@@ -67,6 +67,7 @@ class EventSlugBanlistValidator(BanlistValidator):
         '_global',
         '__debug__',
         'api',
+        'storefrontapi',
         'events',
         'csp_report',
         'widget',
@@ -91,6 +92,7 @@ class OrganizerSlugBanlistValidator(BanlistValidator):
         '__debug__',
         'about',
         'api',
+        'storefrontapi',
         'csp_report',
         'widget',
         'lead',

src/pretix/control/apps.py

@@ -40,5 +40,5 @@ class PretixControlConfig(AppConfig):
     label = 'pretixcontrol'
 
     def ready(self):
-        from .views import dashboards  # noqa
         from . import logdisplay  # noqa
+        from .views import dashboards  # noqa

src/pretix/presale/checkoutflow.py

@@ -72,6 +72,7 @@ from pretix.base.services.orders import perform_order
 from pretix.base.services.tasks import EventTask
 from pretix.base.settings import PERSON_NAME_SCHEMES
 from pretix.base.signals import validate_cart_addons
+from pretix.base.storelogic.products import get_items_for_product_list
 from pretix.base.templatetags.money import money_filter
 from pretix.base.templatetags.phone_format import phone_format
 from pretix.base.templatetags.rich_text import rich_text_snippet
@@ -98,7 +99,6 @@ from pretix.presale.views.cart import (
     _items_from_post_data, cart_session, create_empty_cart_id,
     get_or_create_cart_id,
 )
-from pretix.presale.views.event import get_grouped_items
 from pretix.presale.views.questions import QuestionsViewMixin
 
 
@@ -560,7 +560,7 @@ class AddOnsStep(CartMixin, AsyncAction, TemplateFlowStep):
 
                 if ckey not in item_cache:
                     # Get all items to possibly show
-                    items, _btn = get_grouped_items(
+                    items, _btn = get_items_for_product_list(
                         self.request.event,
                         subevent=cartpos.subevent,
                         voucher=None,

src/pretix/presale/views/cart.py

@@ -64,6 +64,9 @@ from pretix.base.services.cart import (
     CartError, add_items_to_cart, apply_voucher, clear_cart, error_messages,
     remove_cart_position,
 )
+from pretix.base.storelogic.products import (
+    get_items_for_product_list, item_group_by_category,
+)
 from pretix.base.timemachine import time_machine_now
 from pretix.base.views.tasks import AsyncAction
 from pretix.helpers.http import redirect_to_url
@@ -72,9 +75,6 @@ from pretix.presale.views import (
     CartMixin, EventViewMixin, allow_cors_if_namespaced,
     allow_frame_if_namespaced, iframe_entry_view_wrapper,
 )
-from pretix.presale.views.event import (
-    get_grouped_items, item_group_by_category,
-)
 from pretix.presale.views.robots import NoSearchIndexViewMixin
 
 try:
@@ -613,7 +613,7 @@ class RedeemView(NoSearchIndexViewMixin, EventViewMixin, CartMixin, TemplateView
         context['max_times'] = self.voucher.max_usages - self.voucher.redeemed
 
         # Fetch all items
-        items, display_add_to_cart = get_grouped_items(
+        items, display_add_to_cart = get_items_for_product_list(
             self.request.event,
             subevent=self.subevent,
             voucher=self.voucher,

src/pretix/presale/views/event.py

@@ -34,7 +34,6 @@
 
 import calendar
 import hashlib
-import sys
 from collections import defaultdict
 from datetime import date, datetime, timedelta
 from decimal import Decimal
@@ -47,10 +46,7 @@ from django import forms
 from django.conf import settings
 from django.contrib import messages
 from django.core.exceptions import PermissionDenied
-from django.db.models import (
+from django.db.models import Count
-    Count, Exists, IntegerField, OuterRef, Prefetch, Q, Value,
-)
-from django.db.models.lookups import Exact
 from django.http import Http404, HttpResponse
 from django.shortcuts import get_object_or_404, redirect, render
 from django.utils.decorators import method_decorator
@@ -64,15 +60,9 @@ from django.views.decorators.csrf import csrf_exempt
 from django.views.generic import TemplateView
 
 from pretix.base.forms.widgets import SplitDateTimePickerWidget
-from pretix.base.models import (
+from pretix.base.models import Quota, Voucher
-    ItemVariation, Quota, SalesChannel, SeatCategoryMapping, Voucher,
-)
 from pretix.base.models.event import Event, SubEvent
-from pretix.base.models.items import (
-    ItemAddOn, ItemBundle, SubEventItem, SubEventItemVariation,
-)
 from pretix.base.services.placeholders import PlaceholderContext
-from pretix.base.services.quotas import QuotaAvailability
 from pretix.base.timemachine import (
     has_time_machine_permission, time_machine_now,
 )
@@ -83,12 +73,15 @@ from pretix.helpers.formats.en.formats import (
 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.signals import item_description, seatingframe_html_head
+from pretix.presale.signals import seatingframe_html_head
 from pretix.presale.views.organizer import (
     EventListMixin, add_subevents_for_days, days_for_template,
     filter_qs_by_attr, has_before_after, weeks_for_template,
 )
 
+from ...base.storelogic.products import (
+    get_items_for_product_list, item_group_by_category,
+)
 from . import (
     CartMixin, EventViewMixin, allow_frame_if_namespaced, get_cart,
     iframe_entry_view_wrapper,
@@ -97,386 +90,6 @@ from . import (
 SessionStore = import_module(settings.SESSION_ENGINE).SessionStore
 
 
-def item_group_by_category(items):
-    return sorted(
-        [
-            # a group is a tuple of a category and a list of items
-            (cat, [i for i in items if i.category == cat])
-            for cat in set([i.category for i in items])
-            # insert categories into a set for uniqueness
-            # a set is unsorted, so sort again by category
-        ],
-        key=lambda group: (group[0].position, group[0].id) if (
-            group[0] is not None and group[0].id is not None) else (0, 0)
-    )
-
-
-def get_grouped_items(event, *, channel: SalesChannel, subevent=None, voucher=None, require_seat=0, base_qs=None,
-                      allow_addons=False, allow_cross_sell=False,
-                      quota_cache=None, filter_items=None, filter_categories=None, memberships=None,
-                      ignore_hide_sold_out_for_item_ids=None):
-    base_qs_set = base_qs is not None
-    base_qs = base_qs if base_qs is not None else event.items
-
-    requires_seat = Exists(
-        SeatCategoryMapping.objects.filter(
-            product_id=OuterRef('pk'),
-            subevent=subevent
-        )
-    )
-    if not event.settings.seating_choice:
-        requires_seat = Value(0, output_field=IntegerField())
-
-    variation_q = (
-        Q(Q(available_from__isnull=True) | Q(available_from__lte=time_machine_now()) | Q(available_from_mode='info')) &
-        Q(Q(available_until__isnull=True) | Q(available_until__gte=time_machine_now()) | Q(available_until_mode='info'))
-    )
-    if not voucher or not voucher.show_hidden_items:
-        variation_q &= Q(hide_without_voucher=False)
-
-    if memberships is not None:
-        prefetch_membership_types = ['require_membership_types']
-    else:
-        prefetch_membership_types = []
-
-    prefetch_var = Prefetch(
-        'variations',
-        to_attr='available_variations',
-        queryset=ItemVariation.objects.using(settings.DATABASE_REPLICA).annotate(
-            subevent_disabled=Exists(
-                SubEventItemVariation.objects.filter(
-                    Q(disabled=True)
-                    | (Exact(OuterRef('available_from_mode'), 'hide') & Q(available_from__gt=time_machine_now()))
-                    | (Exact(OuterRef('available_until_mode'), 'hide') & Q(available_until__lt=time_machine_now())),
-                    variation_id=OuterRef('pk'),
-                    subevent=subevent,
-                )
-            ),
-        ).filter(
-            variation_q,
-            Q(all_sales_channels=True) | Q(limit_sales_channels=channel),
-            active=True,
-            quotas__isnull=False,
-            subevent_disabled=False
-        ).prefetch_related(
-            *prefetch_membership_types,
-            Prefetch('quotas',
-                     to_attr='_subevent_quotas',
-                     queryset=event.quotas.using(settings.DATABASE_REPLICA).filter(
-                         subevent=subevent).select_related("subevent"))
-        ).distinct()
-    )
-    prefetch_quotas = Prefetch(
-        'quotas',
-        to_attr='_subevent_quotas',
-        queryset=event.quotas.using(settings.DATABASE_REPLICA).filter(subevent=subevent).select_related("subevent")
-    )
-    prefetch_bundles = Prefetch(
-        'bundles',
-        queryset=ItemBundle.objects.using(settings.DATABASE_REPLICA).prefetch_related(
-            Prefetch('bundled_item',
-                     queryset=event.items.using(settings.DATABASE_REPLICA).select_related(
-                         'tax_rule').prefetch_related(
-                         Prefetch('quotas',
-                                  to_attr='_subevent_quotas',
-                                  queryset=event.quotas.using(settings.DATABASE_REPLICA).filter(
-                                      subevent=subevent)),
-                     )),
-            Prefetch('bundled_variation',
-                     queryset=ItemVariation.objects.using(
-                         settings.DATABASE_REPLICA
-                     ).select_related('item', 'item__tax_rule').filter(item__event=event).prefetch_related(
-                         Prefetch('quotas',
-                                  to_attr='_subevent_quotas',
-                                  queryset=event.quotas.using(settings.DATABASE_REPLICA).filter(
-                                      subevent=subevent)),
-                     )),
-        )
-    )
-
-    items = base_qs.using(settings.DATABASE_REPLICA).filter_available(
-        channel=channel.identifier, voucher=voucher, allow_addons=allow_addons, allow_cross_sell=allow_cross_sell
-    ).select_related(
-        'category', 'tax_rule',  # for re-grouping
-        'hidden_if_available',
-    ).prefetch_related(
-        *prefetch_membership_types,
-        Prefetch(
-            'hidden_if_item_available',
-            queryset=event.items.annotate(
-                has_variations=Count('variations'),
-            ).prefetch_related(
-                prefetch_var,
-                prefetch_quotas,
-                prefetch_bundles,
-            )
-        ),
-        prefetch_quotas,
-        prefetch_var,
-        prefetch_bundles,
-    ).annotate(
-        quotac=Count('quotas'),
-        has_variations=Count('variations'),
-        subevent_disabled=Exists(
-            SubEventItem.objects.filter(
-                Q(disabled=True)
-                | (Exact(OuterRef('available_from_mode'), 'hide') & Q(available_from__gt=time_machine_now()))
-                | (Exact(OuterRef('available_until_mode'), 'hide') & Q(available_until__lt=time_machine_now())),
-                item_id=OuterRef('pk'),
-                subevent=subevent,
-            )
-        ),
-        mandatory_priced_addons=Exists(
-            ItemAddOn.objects.filter(
-                base_item_id=OuterRef('pk'),
-                min_count__gte=1,
-                price_included=False
-            )
-        ),
-        requires_seat=requires_seat,
-    ).filter(
-        quotac__gt=0, subevent_disabled=False,
-    ).order_by('category__position', 'category_id', 'position', 'name')
-    if require_seat:
-        items = items.filter(requires_seat__gt=0)
-    elif require_seat is not None:
-        items = items.filter(requires_seat=0)
-
-    if filter_items:
-        items = items.filter(pk__in=[a for a in filter_items if a.isdigit()])
-    if filter_categories:
-        items = items.filter(category_id__in=[a for a in filter_categories if a.isdigit()])
-
-    display_add_to_cart = False
-    quota_cache_key = f'item_quota_cache:{subevent.id if subevent else 0}:{channel.identifier}:{bool(require_seat)}'
-    quota_cache = quota_cache or event.cache.get(quota_cache_key) or {}
-    quota_cache_existed = bool(quota_cache)
-
-    if subevent:
-        item_price_override = subevent.item_price_overrides
-        var_price_override = subevent.var_price_overrides
-    else:
-        item_price_override = {}
-        var_price_override = {}
-
-    restrict_vars = set()
-    if voucher and voucher.quota_id:
-        # If a voucher is set to a specific quota, we need to filter out on that level
-        restrict_vars = set(voucher.quota.variations.all())
-
-    quotas_to_compute = []
-    for item in items:
-        assert item.event_id == event.pk
-        item.event = event  # save a database query if this is looked up
-        if item.has_variations:
-            for v in item.available_variations:
-                for q in v._subevent_quotas:
-                    if q.pk not in quota_cache:
-                        quotas_to_compute.append(q)
-        else:
-            for q in item._subevent_quotas:
-                if q.pk not in quota_cache:
-                    quotas_to_compute.append(q)
-
-    if quotas_to_compute:
-        qa = QuotaAvailability()
-        qa.queue(*quotas_to_compute)
-        qa.compute()
-        quota_cache.update({q.pk: r for q, r in qa.results.items()})
-
-    for item in items:
-        if voucher and voucher.item_id and voucher.variation_id:
-            # Restrict variations if the voucher only allows one
-            item.available_variations = [v for v in item.available_variations
-                                         if v.pk == voucher.variation_id]
-
-        if channel.type_instance.unlimited_items_per_order:
-            max_per_order = sys.maxsize
-        else:
-            max_per_order = item.max_per_order or int(event.settings.max_items_per_order)
-
-        if item.hidden_if_available:
-            q = item.hidden_if_available.availability(_cache=quota_cache)
-            if q[0] == Quota.AVAILABILITY_OK:
-                item._remove = True
-                continue
-
-        if item.hidden_if_item_available:
-            if item.hidden_if_item_available.has_variations:
-                dependency_available = any(
-                    var.check_quotas(subevent=subevent, _cache=quota_cache, include_bundled=True)[0] == Quota.AVAILABILITY_OK
-                    for var in item.hidden_if_item_available.available_variations
-                )
-            else:
-                q = item.hidden_if_item_available.check_quotas(subevent=subevent, _cache=quota_cache, include_bundled=True)
-                dependency_available = q[0] == Quota.AVAILABILITY_OK
-            if dependency_available:
-                item._remove = True
-                continue
-
-        if item.require_membership and item.require_membership_hidden:
-            if not memberships or not any([m.membership_type in item.require_membership_types.all() for m in memberships]):
-                item._remove = True
-                continue
-
-        item.current_unavailability_reason = item.unavailability_reason(has_voucher=voucher, subevent=subevent)
-
-        item.description = str(item.description)
-        for recv, resp in item_description.send(sender=event, item=item, variation=None, subevent=subevent):
-            if resp:
-                item.description += ("<br/>" if item.description else "") + resp
-
-        if not item.has_variations:
-            item._remove = False
-            if not bool(item._subevent_quotas):
-                item._remove = True
-                continue
-
-            if voucher and (voucher.allow_ignore_quota or voucher.block_quota):
-                item.cached_availability = (
-                    Quota.AVAILABILITY_OK, voucher.max_usages - voucher.redeemed
-                )
-            else:
-                item.cached_availability = list(
-                    item.check_quotas(subevent=subevent, _cache=quota_cache, include_bundled=True)
-                )
-
-            if not (
-                    ignore_hide_sold_out_for_item_ids and item.pk in ignore_hide_sold_out_for_item_ids
-            ) and event.settings.hide_sold_out and item.cached_availability[0] < Quota.AVAILABILITY_RESERVED:
-                item._remove = True
-                continue
-
-            item.order_max = min(
-                item.cached_availability[1]
-                if item.cached_availability[1] is not None else sys.maxsize,
-                max_per_order
-            )
-
-            original_price = item_price_override.get(item.pk, item.default_price)
-            voucher_reduced = False
-            if voucher:
-                price = voucher.calculate_price(original_price)
-                voucher_reduced = price < original_price
-                include_bundled = not voucher.all_bundles_included
-            else:
-                price = original_price
-                include_bundled = True
-
-            item.display_price = item.tax(price, currency=event.currency, include_bundled=include_bundled)
-            if item.free_price and item.free_price_suggestion is not None and not voucher_reduced:
-                item.suggested_price = item.tax(max(price, item.free_price_suggestion), currency=event.currency, include_bundled=include_bundled)
-            else:
-                item.suggested_price = item.display_price
-
-            if price != original_price:
-                item.original_price = item.tax(original_price, currency=event.currency, include_bundled=True)
-            else:
-                item.original_price = (
-                    item.tax(item.original_price, currency=event.currency, include_bundled=True,
-                             base_price_is='net' if event.settings.display_net_prices else 'gross')  # backwards-compat
-                    if item.original_price else None
-                )
-            if not display_add_to_cart:
-                display_add_to_cart = not item.requires_seat and item.order_max > 0
-        else:
-            for var in item.available_variations:
-                if var.require_membership and var.require_membership_hidden:
-                    if not memberships or not any([m.membership_type in var.require_membership_types.all() for m in memberships]):
-                        var._remove = True
-                        continue
-
-                var.description = str(var.description)
-                for recv, resp in item_description.send(sender=event, item=item, variation=var, subevent=subevent):
-                    if resp:
-                        var.description += ("<br/>" if var.description else "") + resp
-
-                if voucher and (voucher.allow_ignore_quota or voucher.block_quota):
-                    var.cached_availability = (
-                        Quota.AVAILABILITY_OK, voucher.max_usages - voucher.redeemed
-                    )
-                else:
-                    var.cached_availability = list(
-                        var.check_quotas(subevent=subevent, _cache=quota_cache, include_bundled=True)
-                    )
-
-                var.order_max = min(
-                    var.cached_availability[1]
-                    if var.cached_availability[1] is not None else sys.maxsize,
-                    max_per_order
-                )
-
-                original_price = var_price_override.get(var.pk, var.price)
-                voucher_reduced = False
-                if voucher:
-                    price = voucher.calculate_price(original_price)
-                    voucher_reduced = price < original_price
-                    include_bundled = not voucher.all_bundles_included
-                else:
-                    price = original_price
-                    include_bundled = True
-
-                var.display_price = var.tax(price, currency=event.currency, include_bundled=include_bundled)
-
-                if item.free_price and var.free_price_suggestion is not None and not voucher_reduced:
-                    var.suggested_price = item.tax(max(price, var.free_price_suggestion), currency=event.currency,
-                                                   include_bundled=include_bundled)
-                elif item.free_price and item.free_price_suggestion is not None and not voucher_reduced:
-                    var.suggested_price = item.tax(max(price, item.free_price_suggestion), currency=event.currency,
-                                                   include_bundled=include_bundled)
-                else:
-                    var.suggested_price = var.display_price
-
-                if price != original_price:
-                    var.original_price = var.tax(original_price, currency=event.currency, include_bundled=True)
-                else:
-                    var.original_price = (
-                        var.tax(var.original_price or item.original_price, currency=event.currency,
-                                include_bundled=True,
-                                base_price_is='net' if event.settings.display_net_prices else 'gross')  # backwards-compat
-                    ) if var.original_price or item.original_price else None
-
-                if not display_add_to_cart:
-                    display_add_to_cart = not item.requires_seat and var.order_max > 0
-
-                var.current_unavailability_reason = var.unavailability_reason(has_voucher=voucher, subevent=subevent)
-
-            item.original_price = (
-                item.tax(item.original_price, currency=event.currency, include_bundled=True,
-                         base_price_is='net' if event.settings.display_net_prices else 'gross')  # backwards-compat
-                if item.original_price else None
-            )
-
-            item.available_variations = [
-                v for v in item.available_variations if v._subevent_quotas and (
-                    not voucher or not voucher.quota_id or v in restrict_vars
-                ) and not getattr(v, '_remove', False)
-            ]
-
-            if not (ignore_hide_sold_out_for_item_ids and item.pk in ignore_hide_sold_out_for_item_ids) and event.settings.hide_sold_out:
-                item.available_variations = [v for v in item.available_variations
-                                             if v.cached_availability[0] >= Quota.AVAILABILITY_RESERVED]
-
-            if voucher and voucher.variation_id:
-                item.available_variations = [v for v in item.available_variations
-                                             if v.pk == voucher.variation_id]
-
-            if len(item.available_variations) > 0:
-                item.min_price = min([v.display_price.net if event.settings.display_net_prices else
-                                      v.display_price.gross for v in item.available_variations])
-                item.max_price = max([v.display_price.net if event.settings.display_net_prices else
-                                      v.display_price.gross for v in item.available_variations])
-                item.best_variation_availability = max([v.cached_availability[0] for v in item.available_variations])
-
-            item._remove = not bool(item.available_variations)
-
-    if not quota_cache_existed and not voucher and not allow_addons and not base_qs_set and not filter_items and not filter_categories:
-        event.cache.set(quota_cache_key, quota_cache, 5)
-    items = [item for item in items
-             if (len(item.available_variations) > 0 or not item.has_variations) and not item._remove]
-    return items, display_add_to_cart
-
-
 @method_decorator(allow_frame_if_namespaced, 'dispatch')
 @method_decorator(iframe_entry_view_wrapper, 'dispatch')
 class EventIndex(EventViewMixin, EventListMixin, CartMixin, TemplateView):
@@ -571,7 +184,7 @@ class EventIndex(EventViewMixin, EventListMixin, CartMixin, TemplateView):
 
         if not self.request.event.has_subevents or self.subevent:
             # Fetch all items
-            items, display_add_to_cart = get_grouped_items(
+            items, display_add_to_cart = get_items_for_product_list(
                 self.request.event,
                 subevent=self.subevent,
                 filter_items=self.request.GET.getlist('item'),

src/pretix/presale/views/order.py

@@ -82,6 +82,7 @@ from pretix.base.services.orders import (
 from pretix.base.services.pricing import get_price
 from pretix.base.services.tickets import generate, invalidate_cache
 from pretix.base.signals import order_modified, register_ticket_outputs
+from pretix.base.storelogic.products import get_items_for_product_list
 from pretix.base.templatetags.money import money_filter
 from pretix.base.views.mixins import OrderQuestionsViewMixin
 from pretix.base.views.tasks import AsyncAction
@@ -95,7 +96,6 @@ from pretix.presale.signals import question_form_fields_overrides
 from pretix.presale.views import (
     CartMixin, EventViewMixin, iframe_entry_view_wrapper,
 )
-from pretix.presale.views.event import get_grouped_items
 from pretix.presale.views.robots import NoSearchIndexViewMixin
 
 
@@ -1372,7 +1372,7 @@ class OrderChangeMixin:
 
                     if ckey not in item_cache:
                         # Get all items to possibly show
-                        items, _btn = get_grouped_items(
+                        items, _btn = get_items_for_product_list(
                             self.request.event,
                             subevent=p.subevent,
                             voucher=None,

src/pretix/presale/views/waiting.py

@@ -39,9 +39,9 @@ from pretix.presale.views import EventViewMixin, iframe_entry_view_wrapper
 
 from ...base.i18n import get_language_without_region
 from ...base.models import Voucher, WaitingListEntry
+from ...base.storelogic.products import get_items_for_product_list
 from ..forms.waitinglist import WaitingListForm
 from . import allow_frame_if_namespaced
-from .event import get_grouped_items
 
 
 @method_decorator(allow_frame_if_namespaced, 'dispatch')
@@ -53,7 +53,7 @@ class WaitingView(EventViewMixin, FormView):
     @cached_property
     def itemvars(self):
         customer = getattr(self.request, 'customer', None)
-        items, display_add_to_cart = get_grouped_items(
+        items, display_add_to_cart = get_items_for_product_list(
             self.request.event,
             subevent=self.subevent,
             require_seat=None,

src/pretix/presale/views/widget.py

@@ -61,6 +61,9 @@ from pretix.base.models import (
 from pretix.base.services.cart import error_messages
 from pretix.base.services.placeholders import PlaceholderContext
 from pretix.base.settings import GlobalSettingsObject
+from pretix.base.storelogic.products import (
+    get_items_for_product_list, item_group_by_category,
+)
 from pretix.base.templatetags.rich_text import rich_text
 from pretix.helpers.daterange import daterange
 from pretix.helpers.thumb import get_thumbnail
@@ -68,9 +71,6 @@ from pretix.multidomain.urlreverse import build_absolute_uri
 from pretix.presale.forms.organizer import meta_filtersets
 from pretix.presale.style import get_theme_vars_css
 from pretix.presale.views.cart import get_or_create_cart_id
-from pretix.presale.views.event import (
-    get_grouped_items, item_group_by_category,
-)
 from pretix.presale.views.organizer import (
     EventListMixin, add_events_for_days, add_subevents_for_days,
     days_for_template, filter_qs_by_attr, weeks_for_template,
@@ -270,7 +270,7 @@ class WidgetAPIProductList(EventListMixin, View):
                 ).values_list('item_id', flat=True)
             )
 
-        items, display_add_to_cart = get_grouped_items(
+        items, display_add_to_cart = get_items_for_product_list(
             self.request.event,
             subevent=self.subevent,
             voucher=self.voucher,

src/pretix/urls.py

@@ -57,6 +57,7 @@ base_patterns = [
     re_path(r'^csp_report/$', csp.csp_report, name='csp.report'),
     re_path(r'^agpl_source$', source.get_source, name='source'),
     re_path(r'^js_helpers/states/$', js_helpers.states, name='js_helpers.states'),
+    re_path(r'^storefrontapi/v1/', include(('pretix.storefrontapi.urls', 'pretixstorefrontapi'), namespace='storefrontapi-v1')),
     re_path(r'^api/v1/', include(('pretix.api.urls', 'pretixapi'), namespace='api-v1')),
     re_path(r'^api/$', RedirectView.as_view(url='/api/v1/'), name='redirect-api-version'),
     re_path(r'^.well-known/apple-developer-merchantid-domain-association$',