diff options
Diffstat (limited to 'generator_templates/rails/post_deployment_migration/migration.rb')
| -rw-r--r-- | generator_templates/rails/post_deployment_migration/migration.rb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/generator_templates/rails/post_deployment_migration/migration.rb b/generator_templates/rails/post_deployment_migration/migration.rb new file mode 100644 index 00000000000..1a7b8d5bf35 --- /dev/null +++ b/generator_templates/rails/post_deployment_migration/migration.rb @@ -0,0 +1,22 @@ +# See http://doc.gitlab.com/ce/development/migration_style_guide.html +# for more information on how to write migrations for GitLab. + +class <%= migration_class_name %> < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + + # When using the methods "add_concurrent_index" or "add_column_with_default" + # you must disable the use of transactions as these methods can not run in an + # existing transaction. When using "add_concurrent_index" make sure that this + # method is the _only_ method called in the migration, any other changes + # should go in a separate migration. This ensures that upon failure _only_ the + # index creation fails and can be retried or reverted easily. + # + # To disable transactions uncomment the following line and remove these + # comments: + # disable_ddl_transaction! + + def change + end +end |