Fix error message when a lookup isn't supported.

Author: WaVEV

django_mongodb_backend/fields/embedded_model_array.py

@@ -16,8 +16,6 @@ class EmbeddedModelArrayField(ArrayField):
         "in",
         "exact",
         "iexact",
-        "regex",
-        "iregex",
         "gt",
         "gte",
         "lt",
@@ -242,7 +240,10 @@ def get_transform(self, name):
             self._sub_transform = transform
             return self
         output_field = self._lhs.output_field
-        suggested_lookups = difflib.get_close_matches(name, output_field.get_lookups())
+        allowed_lookups = self.array_field.ALLOWED_LOOKUPS.intersection(
+            set(output_field.get_lookups())
+        )
+        suggested_lookups = difflib.get_close_matches(name, allowed_lookups)
         if suggested_lookups:
             suggested_lookups = " or ".join(suggested_lookups)
             suggestion = f", perhaps you meant {suggested_lookups}?"

tests/model_fields_/test_embedded_model_array.py

@@ -270,6 +270,13 @@ def test_missing_lookup(self):
         with self.assertRaisesMessage(FieldDoesNotExist, msg):
             MuseumExhibit.objects.filter(sections__section_number__return=3)
 
+    def test_missing_operation(self):
+        msg = "Unsupported lookup 'rage' for EmbeddedModelArrayField of 'IntegerField'"
+        with self.assertRaisesMessage(FieldDoesNotExist, msg):
+            self.assertCountEqual(
+                MuseumExhibit.objects.filter(sections__section_number__rage=[10]), []
+            )
+
     def test_missing_lookup_suggestions(self):
         msg = (
             "Unsupported lookup 'ltee' for EmbeddedModelArrayField of 'IntegerField', "