From de8fa9d94d7e99dda1c65b81a108414313900af1 Mon Sep 17 00:00:00 2001
From: Elias Hernandis <elias@hernandis.me>
Date: Fri, 27 Dec 2024 09:28:44 +0100
Subject: [PATCH] handle null-ish arguments in template tags

---
 anchor/templatetags/anchor.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/anchor/templatetags/anchor.py b/anchor/templatetags/anchor.py
index 152ab42..167d91a 100644
--- a/anchor/templatetags/anchor.py
+++ b/anchor/templatetags/anchor.py
@@ -19,7 +19,7 @@ def blob_url(value: Blob | Attachment | None):
     """
     Return a signed URL for the given Attachment or Blob.
     """
-    if value is None:
+    if value is None or value == "":
         return ""
 
     return reverse(
@@ -33,7 +33,7 @@ def representation_url(value: Variant | Blob | Attachment | None, **transformati
     """
     Return a signed URL for a transformation of the given Attachment or Blob.
     """
-    if value is None:
+    if value is None or value == "":
         return ""
 
     if isinstance(value, Variant):