Merge branch 'fix/sos-delete-view' into 'develop'

Fix logging of SoS deletion

Closes #468

See merge request hub/hub!885

src/backoffice/views/events.py

@@ -192,12 +192,12 @@ class SosDeleteView(ConferenceLoginRequiredMixin, DeleteView):
             Event.objects.manageable_by_user(user=self.request.user, conference=self.conference).filter(kind=Event.Kind.SELF_ORGANIZED).select_related('owner')
         )
 
-    def delete(self, *args, **kwargs):
-        result = super().delete(*args, **kwargs)
+    def form_valid(self, form):
+        response = super().form_valid(form)
         messages.success(self.request, _('SoS__removed %(event_name)s') % {'event_name': self.object.name})
         logger.info('Event (sos) "%(name)s" (%(pk)s) removed by <%(user)s>', {'name': self.object.name, 'pk': self.object.pk, 'user': self.request.user})
         ConferenceExportCache.signal_schedule_modification(self.conference)
-        return result
+        return response
 
     def get_success_url(self, *args, **kwargs):
         return reverse('backoffice:sos')