Fix orderlist export with no events

src/pretix/base/exporters/orderlist.py

@@ -315,8 +315,9 @@ class OrderListExporter(MultiSheetListExporter):
             for id, vn in payment_methods:
                 headers.append(_('Paid by {method}').format(method=vn))
 
-        # get meta_data labels from first cached event
-        headers += next(iter(self.event_object_cache.values())).meta_data.keys()
+        if self.event_object_cache:
+            # get meta_data labels from first cached event if any
+            headers += next(iter(self.event_object_cache.values())).meta_data.keys()
         yield headers
 
         full_fee_sum_cache = {
@@ -503,8 +504,9 @@ class OrderListExporter(MultiSheetListExporter):
         headers.append(_('External customer ID'))
         headers.append(_('Payment providers'))
 
-        # get meta_data labels from first cached event
-        headers += next(iter(self.event_object_cache.values())).meta_data.keys()
+        if self.event_object_cache:
+            # get meta_data labels from first cached event if any
+            headers += next(iter(self.event_object_cache.values())).meta_data.keys()
         yield headers
 
         yield self.ProgressSetTotal(total=qs.count())
@@ -707,9 +709,9 @@ class OrderListExporter(MultiSheetListExporter):
             _('Position order link')
         ]
 
-        # get meta_data labels from first cached event
-        meta_data_labels = next(iter(self.event_object_cache.values())).meta_data.keys()
         if has_subevents:
+            # get meta_data labels from first cached event
+            meta_data_labels = next(iter(self.event_object_cache.values())).meta_data.keys()
             headers += meta_data_labels
         yield headers
 

src/pretix/control/logdisplay.py

@@ -518,7 +518,6 @@ def pretixcontrol_orderposition_blocked_display(sender: Event, orderposition, bl
         'The order requires approval before it can continue to be processed.'),
     'pretix.event.order.approved': _('The order has been approved.'),
     'pretix.event.order.denied': _('The order has been denied (comment: "{comment}").'),
-    'pretix.event.order.vatid.validated': _('The customer VAT ID has been verified.'),
     'pretix.event.order.contact.changed': _('The email address has been changed from "{old_email}" '
                                             'to "{new_email}".'),
     'pretix.event.order.contact.confirmed': _(

src/pretix/control/views/orders.py

@@ -1641,17 +1641,9 @@ class OrderCheckVATID(OrderView):
 
             try:
                 normalized_id = validate_vat_id(ia.vat_id, str(ia.country))
-                with transaction.atomic():
-                    ia.vat_id_validated = True
-                    ia.vat_id = normalized_id
-                    ia.save()
-                    self.order.log_action(
-                        'pretix.event.order.vatid.validated',
-                        data={
-                            'vat_id': normalized_id,
-                        },
-                        user=self.request.user,
-                    )
+                ia.vat_id_validated = True
+                ia.vat_id = normalized_id
+                ia.save()
             except VATIDFinalError as e:
                 messages.error(self.request, e.message)
             except VATIDTemporaryError: