Use DatabaseOperations.adapt_durationfield_value()

(new in Django 6.1)

Author: timgraham

django_mongodb_backend/fields/__init__.py

@@ -1,6 +1,5 @@
 from .array import ArrayField
 from .auto import ObjectIdAutoField
-from .duration import register_duration_field
 from .embedded_model import EmbeddedModelField
 from .embedded_model_array import EmbeddedModelArrayField
 from .json import register_json_field
@@ -21,5 +20,4 @@
 
 
 def register_fields():
-    register_duration_field()
     register_json_field()

django_mongodb_backend/fields/duration.py

@@ -66,6 +66,15 @@ def adapt_decimalfield_value(self, value, max_digits=None, decimal_places=None):
             return None
         return Decimal128(value)
 
+    def adapt_durationfield_value(self, value):
+        """DurationField stores milliseconds rather than microseconds."""
+        value = super().adapt_durationfield_value(value)
+        if value is not None:
+            value //= 1000
+            # Store value as Int64 (long).
+            value = Int64(value)
+        return value
+
     def adapt_integerfield_value(self, value, internal_type):
         """Store non-SmallIntegerField variants as Int64 (long)."""
         if value is None: