Refactor delegating `join_primary_key` instead of `join_keys` and `association_primary_key` in `TableMetadata`

Because `join_primary_key` is called by `join_keys` and it is to
abstract calling `association_primary_key`.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/reflection.rb b/activerecord/lib/active_record/reflection.rb
index 87bfd75bca..e45228a2ec 100644
--- a/activerecord/lib/active_record/reflection.rb
+++ b/activerecord/lib/active_record/reflection.rb
@@ -293,7 +293,7 @@ module ActiveRecord
         Relation.create(klass, table, predicate_builder)
       end
 
-      def join_primary_key(_)
+      def join_primary_key(*)
         foreign_key
       end
 
@@ -722,7 +722,7 @@ module ActiveRecord
         end
       end
 
-      def join_primary_key(klass)
+      def join_primary_key(klass = nil)
         polymorphic? ? association_primary_key(klass) : association_primary_key
       end