Check-in log: Add select2 for gate selection

src/pretix/control/forms/filter.py

@@ -2215,6 +2215,17 @@ class CheckinFilterForm(FilterForm):
         self.fields['device'].label = _('Device')
 
         self.fields['gate'].queryset = self.event.organizer.gates.all()
+        self.fields['gate'].widget = Select2(
+            attrs={
+                'data-model-select2': 'generic',
+                'data-select2-url': reverse('control:organizer.gates.select2', kwargs={
+                    'organizer': self.event.organizer.slug,
+                }),
+                'data-placeholder': _('All gates'),
+            }
+        )
+        self.fields['gate'].widget.choices = self.fields['gate'].choices
+        self.fields['gate'].label = _('Gate')
 
         self.fields['checkin_list'].queryset = self.event.checkin_lists.all()
         self.fields['checkin_list'].widget = Select2(

src/pretix/control/urls.py

@@ -191,6 +191,7 @@ urlpatterns = [
     re_path(r'^organizer/(?P<organizer>[^/]+)/device/(?P<device>[^/]+)/logs$', organizer.DeviceLogView.as_view(),
             name='organizer.device.logs'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/gates$', organizer.GateListView.as_view(), name='organizer.gates'),
+    re_path(r'^organizer/(?P<organizer>[^/]+)/gates/select2$', typeahead.gate_select2, name='organizer.gates.select2'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/gate/add$', organizer.GateCreateView.as_view(), name='organizer.gate.add'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/gate/(?P<gate>[^/]+)/edit$', organizer.GateUpdateView.as_view(),
             name='organizer.gate.edit'),

src/pretix/control/views/typeahead.py

@@ -869,3 +869,33 @@ def devices_select2(request, **kwargs):
         }
     }
     return JsonResponse(doc)
+
+
+@organizer_permission_required(("can_view_orders", "can_change_organizer_settings"))
+# This decorator is a bit of a hack since this is not technically an organizer permission, but it does the job here --
+# anyone who can see orders for any event can see the check-in log view where this is used as a filter
+def gate_select2(request, **kwargs):
+    query = request.GET.get('query', '')
+    try:
+        page = int(request.GET.get('page', '1'))
+    except ValueError:
+        page = 1
+
+    qs = request.organizer.gates.filter(Q(name__icontains=query) | Q(identifier__icontains=query)).order_by('name')
+
+    total = qs.count()
+    pagesize = 20
+    offset = (page - 1) * pagesize
+    doc = {
+        'results': [
+            {
+                'id': e.pk,
+                'text': str(e),
+            }
+            for e in qs[offset:offset + pagesize]
+        ],
+        'pagination': {
+            "more": total >= (offset + pagesize)
+        }
+    }
+    return JsonResponse(doc)

src/tests/control/test_permissions.py

@@ -519,6 +519,7 @@ organizer_permission_urls = [
     ("can_change_organizer_settings", "organizer/dummy/device/1/connect", 404),
     ("can_change_organizer_settings", "organizer/dummy/device/1/revoke", 404),
     ("can_change_organizer_settings", "organizer/dummy/gates", 200),
+    ("can_change_organizer_settings", "organizer/dummy/gates/select2", 200),
     ("can_change_organizer_settings", "organizer/dummy/gate/add", 200),
     ("can_change_organizer_settings", "organizer/dummy/gate/1/edit", 404),
     ("can_change_organizer_settings", "organizer/dummy/gate/1/delete", 404),