23 lines
678 B
Ruby
23 lines
678 B
Ruby
# frozen_string_literal: true
|
|
|
|
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
|
|
# for more information on how to write migrations for GitLab.
|
|
|
|
class AddPromotedToEpicToIssuesIndex < ActiveRecord::Migration[5.2]
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
DOWNTIME = false
|
|
|
|
disable_ddl_transaction!
|
|
|
|
def up
|
|
add_concurrent_foreign_key :issues, :epics, column: :promoted_to_epic_id, on_delete: :nullify
|
|
add_concurrent_index :issues, :promoted_to_epic_id, where: 'promoted_to_epic_id IS NOT NULL'
|
|
end
|
|
|
|
def down
|
|
remove_concurrent_index(:issues, :promoted_to_epic_id)
|
|
remove_foreign_key :issues, column: :promoted_to_epic_id
|
|
end
|
|
end
|