From 8ba38a0254f2a093d9172d3d25ec20a4b770307a Mon Sep 17 00:00:00 2001
From: Raphael Michel <mail@raphaelmichel.de>
Date: Mon, 11 Mar 2019 16:38:14 +0100
Subject: [PATCH] Order.meta_info_data: Expose null values as an empty dict

---
 src/pretix/base/models/orders.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/pretix/base/models/orders.py b/src/pretix/base/models/orders.py
index c07fa507d..0f4f2c32c 100644
--- a/src/pretix/base/models/orders.py
+++ b/src/pretix/base/models/orders.py
@@ -229,6 +229,8 @@ class Order(LockModel, LoggedModel):
 
     @cached_property
     def meta_info_data(self):
+        if not self.meta_info:
+            return {}
         try:
             return json.loads(self.meta_info)
         except TypeError: