Add sales channels (#1103)

- [x] Data model
- [x] Enforce constraint
- [x] Filter order list
- [x] Set channel on created order
- [x] Products API
- [x] Order API
- [x] Tests
- [x] Filter reports
- [x] Resellers
- [ ] deploy plugins
  - [ ] posbackend
  - [ ] resellers
  - [ ] reports
- [x] Ticketlayouts
- [x] Support in pretixPOS

src/pretix/presale/checkoutflow.py

@@ -236,7 +236,8 @@ class AddOnsStep(CartMixin, AsyncAction, TemplateFlowStep):
                         data=(self.request.POST if self.request.method == 'POST' else None),
                         quota_cache=quota_cache,
                         item_cache=item_cache,
-                        subevent=cartpos.subevent
+                        subevent=cartpos.subevent,
+                        sales_channel=self.request.sales_channel
                     )
                 }
 
@@ -294,7 +295,8 @@ class AddOnsStep(CartMixin, AsyncAction, TemplateFlowStep):
             return self.get(request, *args, **kwargs)
 
         return self.do(self.request.event.id, data, get_or_create_cart_id(self.request),
-                       invoice_address=self.invoice_address.pk, locale=get_language())
+                       invoice_address=self.invoice_address.pk, locale=get_language(),
+                       sales_channel=request.sales_channel)
 
 
 class QuestionsStep(QuestionsViewMixin, CartMixin, TemplateFlowStep):
@@ -613,7 +615,8 @@ class ConfirmStep(CartMixin, AsyncAction, TemplateFlowStep):
 
         return self.do(self.request.event.id, self.payment_provider.identifier if self.payment_provider else None,
                        [p.id for p in self.positions], self.cart_session.get('email'),
-                       translation.get_language(), self.invoice_address.pk, meta_info)
+                       translation.get_language(), self.invoice_address.pk, meta_info,
+                       request.sales_channel)
 
     def get_success_message(self, value):
         create_empty_cart_id(self.request)

src/pretix/presale/forms/checkout.py

@@ -138,7 +138,6 @@ class AddOnsForm(forms.Form):
         if override_price:
             price = override_price
 
-        print(price, repr(price), type(price), repr(item.default_price))
         if self.price_included:
             price = TAXED_ZERO
         else:
@@ -191,6 +190,7 @@ class AddOnsForm(forms.Form):
         quota_cache = kwargs.pop('quota_cache')
         item_cache = kwargs.pop('item_cache')
         self.price_included = kwargs.pop('price_included')
+        self.sales_channel = kwargs.pop('sales_channel')
 
         super().__init__(*args, **kwargs)
 
@@ -209,6 +209,7 @@ class AddOnsForm(forms.Form):
                 & Q(Q(available_from__isnull=True) | Q(available_from__lte=now()))
                 & Q(Q(available_until__isnull=True) | Q(available_until__gte=now()))
                 & Q(hide_without_voucher=False)
+                & Q(sales_channels__contains=self.sales_channel)
             ).select_related('tax_rule').prefetch_related(
                 Prefetch('quotas',
                          to_attr='_subevent_quotas',

src/pretix/presale/utils.py

@@ -92,6 +92,9 @@ def _detect_event(request, require_live=True, require_plugin=None):
                 if require_plugin not in request.event.get_plugins() and not is_core:
                     raise Http404(_('This feature is not enabled.'))
 
+            if not hasattr(request, 'sales_channel'):
+                # The environ lookup is only relevant during unit testing
+                request.sales_channel = request.environ.get('PRETIX_SALES_CHANNEL', 'web')
             for receiver, response in process_request.send(request.event, request=request):
                 if response:
                     return response

src/pretix/presale/views/cart.py

@@ -382,7 +382,7 @@ class CartAdd(EventViewMixin, CartActionMixin, AsyncAction, View):
         items = self._items_from_post_data()
         if items:
             return self.do(self.request.event.id, items, cart_id, translation.get_language(),
-                           self.invoice_address.pk, widget_data)
+                           self.invoice_address.pk, widget_data, self.request.sales_channel)
         else:
             if 'ajax' in self.request.GET or 'ajax' in self.request.POST:
                 return JsonResponse({
@@ -405,7 +405,7 @@ class RedeemView(NoSearchIndexViewMixin, EventViewMixin, TemplateView):
 
         # Fetch all items
         items, display_add_to_cart = get_grouped_items(self.request.event, self.subevent,
-                                                       voucher=self.voucher)
+                                                       voucher=self.voucher, channel=self.request.sales_channel)
 
         # Calculate how many options the user still has. If there is only one option, we can
         # check the box right away ;)

src/pretix/presale/views/event.py

@@ -47,12 +47,13 @@ def item_group_by_category(items):
     )
 
 
-def get_grouped_items(event, subevent=None, voucher=None):
+def get_grouped_items(event, subevent=None, voucher=None, channel='web'):
     items = event.items.all().filter(
         Q(active=True)
         & Q(Q(available_from__isnull=True) | Q(available_from__lte=now()))
         & Q(Q(available_until__isnull=True) | Q(available_until__gte=now()))
         & Q(Q(category__isnull=True) | Q(category__is_addon=False))
+        & Q(sales_channels__contains=channel)
     )
 
     vouchq = Q(hide_without_voucher=False)
@@ -249,7 +250,8 @@ class EventIndex(EventViewMixin, CartMixin, TemplateView):
         context = super().get_context_data(**kwargs)
         if not self.request.event.has_subevents or self.subevent:
             # Fetch all items
-            items, display_add_to_cart = get_grouped_items(self.request.event, self.subevent)
+            items, display_add_to_cart = get_grouped_items(self.request.event, self.subevent,
+                                                           channel=self.request.sales_channel)
             context['itemnum'] = len(items)
 
             # Regroup those by category

src/pretix/presale/views/widget.py

@@ -155,7 +155,7 @@ class WidgetAPIProductList(View):
 
     def _get_items(self):
         items, display_add_to_cart = get_grouped_items(
-            self.request.event, subevent=self.subevent, voucher=self.voucher
+            self.request.event, subevent=self.subevent, voucher=self.voucher, channel='web'
         )
         grps = []
         for cat, g in item_group_by_category(items):