Fixes #3190: Fix custom field rendering for Jinja2 export templates

netbox/extras/querysets.py

@@ -1,6 +1,24 @@
+from collections import OrderedDict
+
 from django.db.models import Q, QuerySet
 
 
+class CustomFieldQueryset:
+    """
+    Annotate custom fields on objects within a QuerySet.
+    """
+    def __init__(self, queryset, custom_fields):
+        self.queryset = queryset
+        self.model = queryset.model
+        self.custom_fields = custom_fields
+
+    def __iter__(self):
+        for obj in self.queryset:
+            values_dict = {cfv.field_id: cfv.value for cfv in obj.custom_field_values.all()}
+            obj.custom_fields = OrderedDict([(field, values_dict.get(field.pk)) for field in self.custom_fields])
+            yield obj
+
+
 class ConfigContextQuerySet(QuerySet):
 
     def get_for_object(self, obj):