2017-09-28 13:34:09 +00:00
|
|
|
class CreateForkNetworks < ActiveRecord::Migration
|
|
|
|
include Gitlab::Database::MigrationHelpers
|
|
|
|
|
|
|
|
DOWNTIME = false
|
|
|
|
|
|
|
|
disable_ddl_transaction!
|
|
|
|
|
|
|
|
def up
|
|
|
|
create_table :fork_networks do |t|
|
|
|
|
t.references :root_project,
|
|
|
|
references: :projects,
|
|
|
|
index: { unique: true }
|
|
|
|
|
|
|
|
t.string :deleted_root_project_name
|
|
|
|
end
|
|
|
|
|
|
|
|
add_concurrent_foreign_key :fork_networks, :projects,
|
|
|
|
column: :root_project_id,
|
|
|
|
on_delete: :nullify
|
|
|
|
end
|
|
|
|
|
|
|
|
def down
|
|
|
|
if foreign_keys_for(:fork_networks, :root_project_id).any?
|
|
|
|
remove_foreign_key :fork_networks, column: :root_project_id
|
|
|
|
end
|
2018-01-11 16:34:01 +00:00
|
|
|
|
2017-09-28 13:34:09 +00:00
|
|
|
drop_table :fork_networks
|
|
|
|
end
|
|
|
|
end
|