Remove as_search_document_update validation check

No longer required as we have a default implementation

Author: hugorodgerbrown

elasticsearch_django/apps.py

@@ -50,10 +50,6 @@ def _validate_model(model):
     """Check that a model configured for an index subclasses the required classes."""
     if not hasattr(model, "as_search_document"):
         raise ImproperlyConfigured("'%s' must implement `as_search_document`." % model)
-    if not hasattr(model, "as_search_document_update"):
-        raise ImproperlyConfigured(
-            "'%s' must implement `as_search_document_update`." % model
-        )
     if not hasattr(model.objects, "get_search_queryset"):
         raise ImproperlyConfigured(
             "'%s.objects must implement `get_search_queryset`." % model

elasticsearch_django/models.py

@@ -347,12 +347,7 @@ def update_search_document(self, *, index, update_fields):
             return
 
         get_client().update(
-            index=index,
-            doc_type=self.search_doc_type,
-            body={
-                "doc": doc
-            },
-            id=self.pk,
+            index=index, doc_type=self.search_doc_type, body={"doc": doc}, id=self.pk
         )
 
     def delete_search_document(self, *, index):