1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
class AddGroupIdToBoardsCe < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
disable_ddl_transaction!
DOWNTIME = false
def up
return if group_id_exists?
add_column :boards, :group_id, :integer
add_foreign_key :boards, :namespaces, column: :group_id, on_delete: :cascade
add_concurrent_index :boards, :group_id
change_column_null :boards, :project_id, true
end
def down
return unless group_id_exists?
remove_foreign_key :boards, column: :group_id
remove_index :boards, :group_id if index_exists? :boards, :group_id
remove_column :boards, :group_id
execute "DELETE from boards WHERE project_id IS NULL"
change_column_null :boards, :project_id, false
end
private
def group_id_exists?
column_exists?(:boards, :group_id)
end
end
|