Refactor fixed_size and size in array field

Author: WaVEV

django_mongodb_backend/fields/array.py

@@ -41,17 +41,13 @@ def __init__(self, base_field, max_size=None, size=None, **kwargs):
                 *self.default_validators,
                 LengthValidator(self.size),
             ]
-        if self.fixed_size:
-            self.default_validators = [
-                *self.default_validators,
-                LengthValidator(self.fixed_size),
-            ]
         # For performance, only add a from_db_value() method if the base field
         # implements it.
         if hasattr(self.base_field, "from_db_value"):
             self.from_db_value = self._from_db_value
         super().__init__(**kwargs)
 
+
     @property
     def model(self):
         try:

django_mongodb_backend/indexes.py

@@ -250,9 +250,9 @@ def create_mongodb_index(
             mappings = {"path": field_path}
             if isinstance(field_, ArrayField):
                 try:
-                    vector_size = int(field_.fixed_size)
+                    vector_size = int(field_.size)
                 except (ValueError, TypeError) as err:
-                    raise ValueError("Atlas vector search requires fixed size.") from err
+                    raise ValueError("Atlas vector search requires size.") from err
                 if not isinstance(field_.base_field, FloatField | DecimalField):
                     raise ValueError("Base type must be Float or Decimal.")
                 mappings.update(