From 441d6edd586af784e91d98ef54c9a1ccc282df99 Mon Sep 17 00:00:00 2001
From: Diogo <somnium@riseup.net>
Date: Tue, 19 Oct 2021 16:46:18 +0100
Subject: [PATCH] Fix AttributeError when obj is None

---
 fastapi_admin/resources.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/fastapi_admin/resources.py b/fastapi_admin/resources.py
index c27da11..5aa73b1 100644
--- a/fastapi_admin/resources.py
+++ b/fastapi_admin/resources.py
@@ -134,7 +134,11 @@ class Model(Resource):
                 continue
             if isinstance(input_, inputs.File):
                 cls.enctype = "multipart/form-data"
-            if isinstance(input_, inputs.ForeignKey) and name in obj._meta.fk_fields:
+            if (
+                isinstance(input_, inputs.ForeignKey)
+                and (obj is not None)
+                and name in obj._meta.fk_fields
+            ):
                 await obj.fetch_related(name)
                 # Value must be the string representation of the fk obj 
                 value = str(getattr(obj, name, None))