X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/c0650d1d845b08668445fa5245d0e532b38afb95..6430b728cbce69b56adc01432fc9351088724efd:/services/api/app/models/arvados_model.rb

diff --git a/services/api/app/models/arvados_model.rb b/services/api/app/models/arvados_model.rb
index 51673f7acb..7d1c30cdaf 100644
--- a/services/api/app/models/arvados_model.rb
+++ b/services/api/app/models/arvados_model.rb
@@ -271,6 +271,18 @@ class ArvadosModel < ActiveRecord::Base
 
   protected
 
+  def self.deep_sort_hash(x)
+    if x.is_a? Hash
+      x.sort.collect do |k, v|
+        [k, deep_sort_hash(v)]
+      end.to_h
+    elsif x.is_a? Array
+      x.collect { |v| deep_sort_hash(v) }
+    else
+      x
+    end
+  end
+
   def ensure_ownership_path_leads_to_user
     if new_record? or owner_uuid_changed?
       uuid_in_path = {owner_uuid => true, uuid => true}