From c6eb37434ebbd74d5ed5aee5e89e6ca14eeccda1 Mon Sep 17 00:00:00 2001
From: tamsin johnson <tomjohnson@ucsb.edu>
Date: Wed, 15 Dec 2021 10:07:59 -0800
Subject: [PATCH] don't try to delegate ""system_create_dtsi" to `#indexer`

not all models have an indexer (e.g. `ActiveFedora::File` inheritors do
not). trying to query them with `MyModel.all` shouldn't raise a `NameError`.
---
 lib/active_fedora/querying.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/active_fedora/querying.rb b/lib/active_fedora/querying.rb
index 4842cf3b8..fe02d3d59 100644
--- a/lib/active_fedora/querying.rb
+++ b/lib/active_fedora/querying.rb
@@ -9,7 +9,8 @@ def self.extended(base)
     end
 
     def default_sort_params
-      [indexer.create_time_solr_name + ' asc']
+      [ActiveFedora.index_field_mapper.solr_name('system_create', :stored_sortable, type: :date) +
+       ' asc']
     end
   end
 end