Remove duplicated `@raw_attributes.keys`

Reduces the number of things outside of attribute methods that cares
about the details of how we store and type cast attributes

2 files changed, 3 insertions, 3 deletions

diff --git a/activerecord/lib/active_record/locking/optimistic.rb b/activerecord/lib/active_record/locking/optimistic.rb
index 7fb27ef6e9..f7ceff7469 100644
--- a/activerecord/lib/active_record/locking/optimistic.rb
+++ b/activerecord/lib/active_record/locking/optimistic.rb
@@ -66,7 +66,7 @@ module ActiveRecord
           send(lock_col + '=', previous_lock_value + 1)
         end
 
-        def _update_record(attribute_names = @raw_attributes.keys) #:nodoc:
+        def _update_record(attribute_names = self.attribute_names) #:nodoc:
           return super unless locking_enabled?
           return 0 if attribute_names.empty?
 
diff --git a/activerecord/lib/active_record/persistence.rb b/activerecord/lib/active_record/persistence.rb
index f1f0d3e57f..525289c270 100644
--- a/activerecord/lib/active_record/persistence.rb
+++ b/activerecord/lib/active_record/persistence.rb
@@ -494,7 +494,7 @@ module ActiveRecord
 
     # Updates the associated record with values matching those of the instance attributes.
     # Returns the number of affected rows.
-    def _update_record(attribute_names = @raw_attributes.keys)
+    def _update_record(attribute_names = self.attribute_names)
       attributes_values = arel_attributes_with_values_for_update(attribute_names)
       if attributes_values.empty?
         0
@@ -505,7 +505,7 @@ module ActiveRecord
 
     # Creates a record with values matching those of the instance attributes
     # and returns its id.
-    def _create_record(attribute_names = @raw_attributes.keys)
+    def _create_record(attribute_names = self.attribute_names)
       attributes_values = arel_attributes_with_values_for_create(attribute_names)
 
       new_id = self.class.unscoped.insert attributes_values