Organizer/MultiEvent-Exports (#1684)

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

src/pretix/plugins/ticketoutputpdf/signals.py

@@ -10,7 +10,7 @@ from pretix.base.channels import get_all_sales_channels
 from pretix.base.signals import (  # NOQA: legacy import
     EventPluginSignal, event_copy_data, item_copy_data, layout_text_variables,
     logentry_display, logentry_object_link, register_data_exporters,
-    register_ticket_outputs,
+    register_multievent_data_exporters, register_ticket_outputs,
 )
 from pretix.control.signals import item_forms
 from pretix.plugins.ticketoutputpdf.forms import TicketLayoutItemForm
@@ -34,6 +34,12 @@ def register_data(sender, **kwargs):
     return AllTicketsPDF
 
 
+@receiver(register_multievent_data_exporters, dispatch_uid="dataexport_multievent_pdf")
+def register_multievent_data(sender, **kwargs):
+    from .exporters import AllTicketsPDF
+    return AllTicketsPDF
+
+
 @receiver(item_forms, dispatch_uid="pretix_ticketoutputpdf_item_forms")
 def control_item_forms(sender, request, item, **kwargs):
     forms = []