Extract AR::SchemaMigration.normalized_versions method

2 files changed, 5 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/railties/databases.rake b/activerecord/lib/active_record/railties/databases.rake
index c82a56718a..d7621646d9 100644
--- a/activerecord/lib/active_record/railties/databases.rake
+++ b/activerecord/lib/active_record/railties/databases.rake
@@ -96,8 +96,7 @@ db_namespace = namespace :db do
       unless ActiveRecord::Base.connection.table_exists?(ActiveRecord::Migrator.schema_migrations_table_name)
         abort 'Schema migrations table does not exist yet.'
       end
-      db_list = ActiveRecord::SchemaMigration.pluck(:version)
-      db_list.map! { |version| ActiveRecord::SchemaMigration.normalize_migration_number(version) }
+      db_list = ActiveRecord::SchemaMigration.normalized_versions
 
       file_list =
           ActiveRecord::Migrator.migrations_paths.flat_map do |path|
diff --git a/activerecord/lib/active_record/schema_migration.rb b/activerecord/lib/active_record/schema_migration.rb
index 3a004d58c9..b5038104ac 100644
--- a/activerecord/lib/active_record/schema_migration.rb
+++ b/activerecord/lib/active_record/schema_migration.rb
@@ -43,6 +43,10 @@ module ActiveRecord
       def normalize_migration_number(number)
         "%.3d" % number.to_i
       end
+
+      def normalized_versions
+        pluck(:version).map { |v| normalize_migration_number v }
+      end
     end
 
     def version