Closes #9887: Inspect docs_url property to determine link to model documentation

netbox/netbox/models/__init__.py

@@ -1,3 +1,4 @@
+from django.conf import settings
 from django.core.validators import ValidationError
 from django.db import models
 from mptt.models import MPTTModel, TreeForeignKey
@@ -26,6 +27,10 @@ class NetBoxFeatureSet(
     class Meta:
         abstract = True
 
+    @property
+    def docs_url(self):
+        return f'{settings.STATIC_URL}docs/models/{self._meta.app_label}/{self._meta.model_name}/'
+
     @classmethod
     def get_prerequisite_models(cls):
         """

netbox/templates/generic/object_edit.html

@@ -37,9 +37,9 @@ Context:
       {% endif %}
 
       {# Link to model documentation #}
-      {% if object and settings.DOCS_ROOT %}
+      {% if settings.DOCS_ROOT and object.docs_url %}
         <div class="float-end">
-          <a href="{{ object|get_docs_url }}" target="_blank" class="btn btn-sm btn-outline-secondary" title="View model documentation">
+          <a href="{{ object.docs_url }}" target="_blank" class="btn btn-sm btn-outline-secondary" title="View model documentation">
             <i class="mdi mdi-help-circle"></i> Help
           </a>
         </div>

netbox/utilities/templatetags/helpers.py

@@ -141,14 +141,6 @@ def percentage(x, y):
     return round(x / y * 100)
 
 
-@register.filter()
-def get_docs_url(model):
-    """
-    Return the documentation URL for the specified model.
-    """
-    return f'{settings.STATIC_URL}docs/models/{model._meta.app_label}/{model._meta.model_name}/'
-
-
 @register.filter()
 def has_perms(user, permissions_list):
     """