1 files changed, 8 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/timestamp.rb b/activerecord/lib/active_record/timestamp.rb
index 5617adea1f..65d9d1fb19 100644
--- a/activerecord/lib/active_record/timestamp.rb
+++ b/activerecord/lib/active_record/timestamp.rb
@@ -66,10 +66,18 @@ module ActiveRecord
       self.record_timestamps && (!partial_updates? || changed? || (attributes.keys & self.class.serialized_attributes.keys).present?)
     end
 
+    def timestamp_attributes_for_create_in_model
+      timestamp_attributes_for_create.select { |c| self.class.column_names.include?(c.to_s) }
+    end
+
     def timestamp_attributes_for_update_in_model
       timestamp_attributes_for_update.select { |c| self.class.column_names.include?(c.to_s) }
     end
 
+    def all_timestamp_attributes_in_model
+      timestamp_attributes_for_create_in_model + timestamp_attributes_for_update_in_model
+    end
+
     def timestamp_attributes_for_update #:nodoc:
       [:updated_at, :updated_on]
     end