Waiting list export: Add product IDs (Z#23192538)

src/pretix/base/exporters/waitinglist.py

@@ -108,8 +108,10 @@ class WaitingListExporter(ListExporter):
             _('Name'),
             _('Email'),
             _('Phone number'),
-            _('Product name'),
+            _('Product'),
+            _('Product ID'),
             _('Variation'),
+            _('Variation ID'),
             _('Event slug'),
             _('Event name'),
             pgettext_lazy('subevents', 'Date'),  # Name of subevent
@@ -146,7 +148,9 @@ class WaitingListExporter(ListExporter):
                 entry.email,
                 entry.phone,
                 str(entry.item) if entry.item else "",
+                str(entry.item.pk) if entry.item else "",
                 str(entry.variation) if entry.variation else "",
+                str(entry.variation.pk) if entry.variation else "",
                 entry.event.slug,
                 entry.event.name,
                 entry.subevent.name if entry.subevent else "",