db/migrate/20200423081441_add_foreign_key_from_users_to_metrics_users_starred_dashboars.rb


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# frozen_string_literal: true

class AddForeignKeyFromUsersToMetricsUsersStarredDashboars < ActiveRecord::Migration[6.0]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false
  disable_ddl_transaction!

  def up
    add_concurrent_foreign_key :metrics_users_starred_dashboards, :users, column: :user_id, on_delete: :cascade
  end

  def down
    with_lock_retries do
      remove_foreign_key_if_exists :metrics_users_starred_dashboards, column: :user_id
    end
  end
end