From 46b3e3c7394b933d383ecde5ae9c0ec30362c2d2 Mon Sep 17 00:00:00 2001
From: Raphael Michel <michel@rami.io>
Date: Mon, 21 Feb 2022 16:59:51 +0100
Subject: [PATCH] AsyncFormView: Allow to declare celery exception classes

---
 src/pretix/base/views/tasks.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/pretix/base/views/tasks.py b/src/pretix/base/views/tasks.py
index 1eeb8515eb..a757fbd7da 100644
--- a/src/pretix/base/views/tasks.py
+++ b/src/pretix/base/views/tasks.py
@@ -205,6 +205,7 @@ class AsyncFormView(AsyncMixin, FormView):
     Also, all form keyword arguments except ``instance`` need to be serializable.
     """
     known_errortypes = ['ValidationError']
+    expected_exceptions = [ValidationError]
     task_base = ProfiledEventTask
 
     def __init_subclass__(cls):
@@ -243,7 +244,7 @@ class AsyncFormView(AsyncMixin, FormView):
             base=cls.task_base,
             bind=True,
             name=cls.__module__ + '.' + cls.__name__ + '.async_execute',
-            throws=(ValidationError,)
+            throws=cls.expected_exceptions
         )(async_execute)
 
     def async_form_valid(self, task, form):