# Client error code

* refactors internal server error (validationError) into assertionError (client error)

api/utils/serializer/serializer.py

@@ -11,7 +11,7 @@ from abc import abstractmethod
 
 from django.contrib.gis import geos
 from django.contrib.gis.geos import GEOSGeometry
-from django.core.exceptions import ObjectDoesNotExist
+from django.core.exceptions import ObjectDoesNotExist, ValidationError
 from django.core.paginator import Paginator
 from django.db.models import Q
 
@@ -102,13 +102,16 @@ class AbstractModelAPISerializer:
         Returns:
             serialized_data (dict)
         """
-        entries = self.model.objects.filter(
-            **self.lookup
-        ).filter(
-            self.shared_lookup
-        ).order_by(
-            "id"
-        ).distinct()
+        try:
+            entries = self.model.objects.filter(
+                **self.lookup
+            ).filter(
+                self.shared_lookup
+            ).order_by(
+                "id"
+            ).distinct()
+        except ValidationError:
+            raise AssertionError("ID expected to be of UUID4 for internal lookup.")
         self.paginator = Paginator(entries, self.rpp)
         requested_entries = self.paginator.page(self.page_number)