20 lines
1.0 KiB
Ruby
20 lines
1.0 KiB
Ruby
# rubocop:disable RemoveIndex
|
|
class AddUniqueIndexToSubscriptions < ActiveRecord::Migration
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
DOWNTIME = true
|
|
DOWNTIME_REASON = 'This migration requires downtime because it changes a column to not accept null values.'
|
|
|
|
disable_ddl_transaction!
|
|
|
|
def up
|
|
add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id, :project_id], { unique: true, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' }
|
|
remove_index :subscriptions, name: 'subscriptions_user_id_and_ref_fields' if index_name_exists?(:subscriptions, 'subscriptions_user_id_and_ref_fields', false)
|
|
end
|
|
|
|
def down
|
|
add_concurrent_index :subscriptions, [:subscribable_id, :subscribable_type, :user_id], { unique: true, name: 'subscriptions_user_id_and_ref_fields' }
|
|
remove_index :subscriptions, name: 'index_subscriptions_on_subscribable_and_user_id_and_project_id' if index_name_exists?(:subscriptions, 'index_subscriptions_on_subscribable_and_user_id_and_project_id', false)
|
|
end
|
|
end
|