Fixes #5558: Fix regex validation support for custom URL fields

Author: jeremystretch

docs/release-notes/version-2.10.md

@@ -12,6 +12,7 @@
 * [#5543](https://github.com/netbox-community/netbox/issues/5543) - Fix rendering of config contexts with cluster assignment for devices
 * [#5546](https://github.com/netbox-community/netbox/issues/5546) - Add custom field bulk edit support for cables, power panels, rack reservations, and virtual chassis
 * [#5547](https://github.com/netbox-community/netbox/issues/5547) - Add custom field bulk import support for cables, power panels, rack reservations, and virtual chassis
+* [#5558](https://github.com/netbox-community/netbox/issues/5558) - Fix regex validation support for custom URL fields
 
 ---
 

netbox/extras/models/customfields.py

@@ -196,7 +196,8 @@ def clean(self):
             })
 
         # Regex validation can be set only for text fields
-        if self.validation_regex and self.type != CustomFieldTypeChoices.TYPE_TEXT:
+        regex_types = (CustomFieldTypeChoices.TYPE_TEXT, CustomFieldTypeChoices.TYPE_URL)
+        if self.validation_regex and self.type not in regex_types:
             raise ValidationError({
                 'validation_regex': "Regular expression validation is supported only for text and URL fields"
             })