Waiting list: Allow to set auto-disable date (Z#23141338) (#4004)

* Waiting list: Allow to set auto-disable date (Z#23141338)

* ADd warning on non-esries events

src/pretix/base/models/event.py

@@ -229,6 +229,14 @@ class EventMixin:
         else:
             return self.presale_end
 
+    @property
+    def waiting_list_active(self):
+        if not self.settings.waiting_list_enabled:
+            return False
+        if self.settings.waiting_list_auto_disable:
+            return self.settings.waiting_list_auto_disable.datetime(self) > now()
+        return True
+
     @property
     def presale_has_ended(self):
         """

src/pretix/base/services/quotas.py

@@ -446,6 +446,11 @@ class QuotaAvailability:
                         self.results[q] = Quota.AVAILABILITY_RESERVED, 0
 
     def _compute_waitinglist(self, quotas, q_items, q_vars, size_left):
+        quotas = [
+            q for q in quotas
+            if not q.event.settings.waiting_list_auto_disable or q.event.settings.waiting_list_auto_disable.datetime(q.subevent or q.event) > now()
+        ]
+
         events = {q.event_id for q in quotas}
         subevents = {q.subevent_id for q in quotas}
         quota_ids = {q.pk for q in quotas}

src/pretix/base/services/waitinglist.py

@@ -110,6 +110,9 @@ def assign_automatically(event: Event, user_id: int=None, subevent_id: int=None)
                 continue
             if wle.subevent and not wle.subevent.presale_is_running:
                 continue
+            if event.settings.waiting_list_auto_disable and event.settings.waiting_list_auto_disable.datetime(wle.subevent or event) <= now():
+                gone.add((wle.item, wle.variation, wle.subevent))
+                continue
             if not wle.item.is_available():
                 gone.add((wle.item, wle.variation, wle.subevent))
                 continue

src/pretix/base/settings.py

@@ -1397,6 +1397,19 @@ DEFAULTS = {
             widget=forms.NumberInput(),
         )
     },
+    'waiting_list_auto_disable': {
+        'default': None,
+        'type': RelativeDateWrapper,
+        'form_class': RelativeDateTimeField,
+        'serializer_class': SerializerRelativeDateTimeField,
+        'form_kwargs': dict(
+            label=_("Disable waiting list"),
+            help_text=_("The waiting list will be fully disabled after this date. This means that nobody can add "
+                        "themselves to the waiting list any more, but also that tickets will be available for sale "
+                        "again if quota permits, even if there are still people on the waiting list. Vouchers that "
+                        "have already been sent remain active."),
+        )
+    },
     'waiting_list_names_asked': {
         'default': 'False',
         'type': bool,