16 lines
381 B
Ruby
16 lines
381 B
Ruby
|
class AddUniqueIndexToListsLabelId < ActiveRecord::Migration
|
||
|
include Gitlab::Database::MigrationHelpers
|
||
|
|
||
|
DOWNTIME = false
|
||
|
|
||
|
disable_ddl_transaction!
|
||
|
|
||
|
def up
|
||
|
add_concurrent_index :lists, [:board_id, :label_id], unique: true
|
||
|
end
|
||
|
|
||
|
def down
|
||
|
remove_index :lists, column: [:board_id, :label_id] if index_exists?(:lists, [:board_id, :label_id], unique: true)
|
||
|
end
|
||
|
end
|