From 084cf0babffec9e7bee537fd4f6b2294de6c33dc Mon Sep 17 00:00:00 2001 From: Yamagishi Kazutoshi Date: Fri, 20 Apr 2018 19:21:28 +0900 Subject: [PATCH] Add extract_foreign_key_action to Mastodon::MigrationHelpers (#7195) --- lib/mastodon/migration_helpers.rb | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/lib/mastodon/migration_helpers.rb b/lib/mastodon/migration_helpers.rb index 6f6f99f63ca..e154b5a2cd7 100644 --- a/lib/mastodon/migration_helpers.rb +++ b/lib/mastodon/migration_helpers.rb @@ -985,6 +985,17 @@ into similar problems in the future (e.g. when new tables are created). BackgroundMigrationWorker.perform_in(delay_interval * index, job_class_name, [start_id, end_id]) end end + + private + + # https://github.com/rails/rails/blob/v5.2.0/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb#L678-L684 + def extract_foreign_key_action(specifier) + case specifier + when 'c'; :cascade + when 'n'; :nullify + when 'r'; :restrict + end + end end end