From 2412312a37c72e6e60c6b822fe60db839295e9f8 Mon Sep 17 00:00:00 2001
From: Mira Weller <weller@rami.io>
Date: Thu, 13 Aug 2026 14:50:10 +0200
Subject: [PATCH] Fix question dependency selection on OLQs, add undocumented
 parameter container_type to API

---
 src/pretix/api/views/item.py                      | 5 ++++-
 src/pretix/control/forms/item.py                  | 1 +
 src/pretix/static/pretixcontrol/js/ui/question.js | 3 ++-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/pretix/api/views/item.py b/src/pretix/api/views/item.py
index 7f6b15bf82..eb46964e9c 100644
--- a/src/pretix/api/views/item.py
+++ b/src/pretix/api/views/item.py
@@ -475,7 +475,10 @@ class QuestionViewSet(ConditionalListView, viewsets.ModelViewSet):
     write_permission = 'event.items:write'
 
     def get_queryset(self):
-        return self.request.event.questions.filter(container_type=Question.ContainerType.ORDERPOSITION).prefetch_related('options').all()
+        return self.request.event.questions.filter(
+            # the container_type parameter is undocumented, this API is going to change in a later release
+            container_type=self.request.GET.get('container_type', Question.ContainerType.ORDERPOSITION),
+        ).prefetch_related('options').all()
 
     @transaction.atomic()
     def perform_create(self, serializer):
diff --git a/src/pretix/control/forms/item.py b/src/pretix/control/forms/item.py
index 6ba5ce091e..9c368ba42e 100644
--- a/src/pretix/control/forms/item.py
+++ b/src/pretix/control/forms/item.py
@@ -158,6 +158,7 @@ class QuestionForm(I18nModelForm):
             self.fields['items'].required = True
         else:
             del self.fields['items']
+        self.fields['dependency_question'].widget.attrs['data-container-type'] = self.instance.container_type
         self.fields['dependency_question'].queryset = self.instance.event.questions.filter(
             type__in=(Question.TYPE_BOOLEAN, Question.TYPE_CHOICE, Question.TYPE_CHOICE_MULTIPLE),
             ask_during_checkin=False,
diff --git a/src/pretix/static/pretixcontrol/js/ui/question.js b/src/pretix/static/pretixcontrol/js/ui/question.js
index 99dff95d5f..be1c8d114e 100644
--- a/src/pretix/static/pretixcontrol/js/ui/question.js
+++ b/src/pretix/static/pretixcontrol/js/ui/question.js
@@ -131,7 +131,8 @@ $(function () {
         $val.parent().append("<div class=\"help-block loading-indicator\"><span class=\"fa" +
             " fa-cog fa-spin\"></span></div>");
 
-        apiGET('/api/v1/organizers/' + $("body").attr("data-organizer") + '/events/' + $("body").attr("data-event") + '/questions/' + val + '/', function (data) {
+				// the container_type parameter is undocumented. this API is going to change in a later release.
+        apiGET('/api/v1/organizers/' + $("body").attr("data-organizer") + '/events/' + $("body").attr("data-event") + '/questions/' + val + '/?container_type=' + encodeURIComponent($dq.data('container-type')), function (data) {
             if (data.type === "B") {
                 $val.append($("<option>").attr("value", "True").text(gettext("Yes")));
                 $val.append($("<option>").attr("value", "False").text(gettext("No")));