From 4b4c542dced4dba6bd61241e3679cd3fed777ed4 Mon Sep 17 00:00:00 2001
From: bctiemann <btiemann@netboxlabs.com>
Date: Thu, 22 Jan 2026 12:40:48 -0500
Subject: [PATCH] Add truncate_middle filter for middle-ellipsis on long
 filenames (#21253)

---
 netbox/extras/tables/tables.py                    |  2 +-
 netbox/utilities/templatetags/builtins/filters.py | 13 +++++++++++++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/netbox/extras/tables/tables.py b/netbox/extras/tables/tables.py
index 09fc5cc3c..996578dab 100644
--- a/netbox/extras/tables/tables.py
+++ b/netbox/extras/tables/tables.py
@@ -43,7 +43,7 @@ IMAGEATTACHMENT_IMAGE = """
   <a href="{{ record.image.url }}" target="_blank" class="image-preview" data-bs-placement="top">
     <i class="mdi mdi-image"></i></a>
 {% endif %}
-<a href="{{ record.get_absolute_url }}">{{ record }}</a>
+<a href="{{ record.get_absolute_url }}">{{ record.filename|truncate_middle:16 }}</a>
 """
 
 NOTIFICATION_ICON = """
diff --git a/netbox/utilities/templatetags/builtins/filters.py b/netbox/utilities/templatetags/builtins/filters.py
index 2d4cbba69..0ee370253 100644
--- a/netbox/utilities/templatetags/builtins/filters.py
+++ b/netbox/utilities/templatetags/builtins/filters.py
@@ -252,3 +252,16 @@ def isodatetime(value, spec='seconds'):
     else:
         return ''
     return mark_safe(f'<span title="{naturaltime(value)}">{text}</span>')
+
+
+@register.filter
+def truncate_middle(value, length):
+    if len(value) <= length:
+        return value
+
+    # Calculate split points for the two parts
+    half_len = (length - 1) // 2  # 1 for the ellipsis
+    first_part = value[:half_len]
+    second_part = value[len(value) - (length - 1 - half_len):]
+
+    return mark_safe(f"{first_part}&hellip;{second_part}")