Fix #515 -- Add check-in lists (#693)

* Data model and migration

* Some backwards compatibility

* CRUD for checkin lists

* Show and perform checkins

* Correct numbers in table and dashboard widget

* event creation and cloning

* Allow to link specific exports and pass options per query

* Play with the CSV export

* PDF export

* Collapse exports by default

* Improve PDF exporter

* Addon stuff

* Subevent stuff, pretixdroid tests

* pretixdroid tests

* Add CRUD API

* Test compatibility

* Fix test

* DB-independent sorting behavior

* Add CRUD and coyp tests

* Re-enable pretixdroid plugin

* pretixdroid config

* Tests & fixes

src/pretix/api/urls.py

@@ -4,7 +4,7 @@ from django.apps import apps
 from django.conf.urls import include, url
 from rest_framework import routers
 
-from .views import event, item, order, organizer, voucher, waitinglist
+from .views import checkin, event, item, order, organizer, voucher, waitinglist
 
 router = routers.DefaultRouter()
 router.register(r'organizers', organizer.OrganizerViewSet)
@@ -24,6 +24,7 @@ event_router.register(r'orderpositions', order.OrderPositionViewSet)
 event_router.register(r'invoices', order.InvoiceViewSet)
 event_router.register(r'taxrules', event.TaxRuleViewSet)
 event_router.register(r'waitinglistentries', waitinglist.WaitingListViewSet)
+event_router.register(r'checkinlists', checkin.CheckinListViewSet)
 
 # Force import of all plugins to give them a chance to register URLs with the router
 for app in apps.get_app_configs():