API: Add filters to questions view

doc/api/resources/questions.rst

@@ -59,6 +59,11 @@ options                               list of objects            In case of ques
 Endpoints
 ---------
 
+.. versionchanged:: 1.15
+
+   The questions endpoint has been extended by the filter queries ``ask_during_checkin``, ``requred``, and
+   ``identifier``.
+
 .. http:get:: /api/v1/organizers/(organizer)/events/(event)/questions/
 
    Returns a list of all questions within a given event.
@@ -120,6 +125,9 @@ Endpoints
    :query integer page: The page number in case of a multi-page result set, default is 1
    :query string ordering: Manually set the ordering of results. Valid fields to be used are ``id`` and ``position``.
                            Default: ``position``
+   :query string identifier: Only return questions with the given identifier string
+   :query boolean ask_during_checkin: Only return questions that are or are not to be asked during check-in
+   :query boolean required: Only return questions that are or are not required to fill in
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
    :statuscode 200: no error

src/pretix/api/views/item.py

@@ -251,10 +251,17 @@ class ItemCategoryViewSet(viewsets.ModelViewSet):
         super().perform_destroy(instance)
 
 
+class QuestionFilter(FilterSet):
+    class Meta:
+        model = Question
+        fields = ['ask_during_checkin', 'required', 'identifier']
+
+
 class QuestionViewSet(viewsets.ModelViewSet):
     serializer_class = QuestionSerializer
     queryset = Question.objects.none()
-    filter_backends = (OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_class = QuestionFilter
     ordering_fields = ('id', 'position')
     ordering = ('position', 'id')
     permission = 'can_change_items'

src/tests/api/test_items.py

@@ -1296,6 +1296,31 @@ def test_question_list(token_client, organizer, event, question, item):
     assert resp.status_code == 200
     assert [res] == resp.data['results']
 
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?required=false'.format(
+        organizer.slug, event.slug
+    ))
+    assert [res] == resp.data['results']
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?ask_during_checkin=false'.format(
+        organizer.slug, event.slug
+    ))
+    assert [res] == resp.data['results']
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?identifier=ABC'.format(
+        organizer.slug, event.slug
+    ))
+    assert [res] == resp.data['results']
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?required=true'.format(
+        organizer.slug, event.slug
+    ))
+    assert [] == resp.data['results']
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?ask_during_checkin=true'.format(
+        organizer.slug, event.slug
+    ))
+    assert [] == resp.data['results']
+    resp = token_client.get('/api/v1/organizers/{}/events/{}/questions/?identifier=DEF'.format(
+        organizer.slug, event.slug
+    ))
+    assert [] == resp.data['results']
+
 
 @pytest.mark.django_db
 def test_question_detail(token_client, organizer, event, question, item):