Event settings: Extend product metadata (Z#23116647) (#3241)

Co-authored-by: Richard Schreiber <schreiber@rami.io>
Co-authored-by: Raphael Michel <michel@rami.io>

src/pretix/api/serializers/event.py

@@ -50,7 +50,9 @@ from pretix.api.serializers.i18n import I18nAwareModelSerializer
 from pretix.api.serializers.settings import SettingsSerializer
 from pretix.base.models import Device, Event, TaxRule, TeamAPIToken
 from pretix.base.models.event import SubEvent
-from pretix.base.models.items import SubEventItem, SubEventItemVariation
+from pretix.base.models.items import (
+    ItemMetaProperty, SubEventItem, SubEventItemVariation,
+)
 from pretix.base.services.seating import (
     SeatProtected, generate_seats, validate_plan_change,
 )
@@ -904,3 +906,23 @@ class DeviceEventSettingsSerializer(EventSettingsSerializer):
                 else []
             )
         )
+
+
+class MultiLineStringField(serializers.Field):
+
+    def to_representation(self, value):
+        return [v.strip() for v in value.splitlines()]
+
+    def to_internal_value(self, data):
+        if isinstance(data, list) and len(data) > 0:
+            return "\n".join(data)
+        else:
+            raise ValidationError('Invalid data type.')
+
+
+class ItemMetaPropertiesSerializer(I18nAwareModelSerializer):
+    allowed_values = MultiLineStringField(allow_null=True)
+
+    class Meta:
+        model = ItemMetaProperty
+        fields = ('id', 'name', 'default', 'required', 'allowed_values')

src/pretix/api/urls.py

@@ -89,6 +89,7 @@ event_router.register(r'checkinlists', checkin.CheckinListViewSet)
 event_router.register(r'cartpositions', cart.CartPositionViewSet)
 event_router.register(r'exporters', exporters.EventExportersViewSet, basename='exporters')
 event_router.register(r'shredders', shredders.EventShreddersViewSet, basename='shredders')
+event_router.register(r'item_meta_properties', event.ItemMetaPropertiesViewSet)
 
 checkinlist_router = routers.DefaultRouter()
 checkinlist_router.register(r'positions', checkin.CheckinListPositionViewSet, basename='checkinlistpos')

src/pretix/api/views/event.py

@@ -47,11 +47,13 @@ from pretix.api.auth.permission import EventCRUDPermission
 from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.event import (
     CloneEventSerializer, DeviceEventSettingsSerializer, EventSerializer,
-    EventSettingsSerializer, SubEventSerializer, TaxRuleSerializer,
+    EventSettingsSerializer, ItemMetaPropertiesSerializer, SubEventSerializer,
+    TaxRuleSerializer,
 )
 from pretix.api.views import ConditionalListView
 from pretix.base.models import (
-    CartPosition, Device, Event, SeatCategoryMapping, TaxRule, TeamAPIToken,
+    CartPosition, Device, Event, ItemMetaProperty, SeatCategoryMapping,
+    TaxRule, TeamAPIToken,
 )
 from pretix.base.models.event import SubEvent
 from pretix.base.services.quotas import QuotaAvailability
@@ -522,6 +524,54 @@ class TaxRuleViewSet(ConditionalListView, viewsets.ModelViewSet):
         super().perform_destroy(instance)
 
 
+class ItemMetaPropertiesViewSet(viewsets.ModelViewSet):
+    serializer_class = ItemMetaPropertiesSerializer
+    queryset = ItemMetaProperty.objects.none()
+    write_permission = 'can_change_event_settings'
+
+    def get_queryset(self):
+        qs = self.request.event.item_meta_properties.all()
+        return qs
+
+    def get_serializer_context(self):
+        ctx = super().get_serializer_context()
+        ctx['organizer'] = self.request.organizer
+        ctx['event'] = self.request.event
+        return ctx
+
+    @transaction.atomic()
+    def perform_destroy(self, instance):
+        instance.log_action(
+            'pretix.event.item_meta_property.deleted',
+            user=self.request.user,
+            auth=self.request.auth,
+            data={'id': instance.pk}
+        )
+        instance.delete()
+
+    @transaction.atomic()
+    def perform_create(self, serializer):
+        inst = serializer.save(event=self.request.event)
+        serializer.instance.log_action(
+            'pretix.event.item_meta_property.added',
+            user=self.request.user,
+            auth=self.request.auth,
+            data=self.request.data,
+        )
+        return inst
+
+    @transaction.atomic()
+    def perform_update(self, serializer):
+        inst = serializer.save(event=self.request.event)
+        serializer.instance.log_action(
+            'pretix.event.item_meta_property.changed',
+            user=self.request.user,
+            auth=self.request.auth,
+            data=self.request.data,
+        )
+        return inst
+
+
 class EventSettingsView(views.APIView):
     permission = None
     write_permission = 'can_change_event_settings'