Merge pull request #71 from AltSchool/feature/add-hooks-needed-for-fi…

…ltering-sideloads

Add serializer hook for filtering sideloads

constants.py

@@ -4,4 +4,4 @@
 DESCRIPTION = "Adds Dynamic API support to Django REST Framework."
 REPO_NAME = "dynamic-rest"
 ORG_NAME = "AltSchool"
-VERSION = "1.3.9"
+VERSION = "1.3.10"

dynamic_rest/filters.py

@@ -471,6 +471,15 @@ def _filter_queryset(
         if query:
             queryset = queryset.filter(query)
 
+        # A serializer can have this optional function
+        # to dynamically apply additional filters on
+        # any queries that will use that serializer
+        # You could use this to have (for example) different
+        # serializers for different subsets of a model or to
+        # implement permissions which work even in sideloads
+        if hasattr(serializer, 'filter_queryset'):
+            queryset = serializer.filter_queryset(queryset)
+
         prefetch = prefetches.values()
         return queryset.prefetch_related(*prefetch).distinct()