blob: 908b122c659ef3545d095d2b1aa5fe355d4e46bb (
plain)
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
35
36
37
|
class AddForeignKeyToMergeRequests < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
class MergeRequest < ActiveRecord::Base
self.table_name = 'merge_requests'
include ::EachBatch
end
def up
scope = <<-SQL.strip_heredoc
head_pipeline_id IS NOT NULL
AND NOT EXISTS (
SELECT 1 FROM ci_pipelines
WHERE ci_pipelines.id = merge_requests.head_pipeline_id
)
SQL
MergeRequest.where(scope).each_batch(of: 1000) do |merge_requests|
merge_requests.update_all(head_pipeline_id: nil)
end
unless foreign_key_exists?(:merge_requests, column: :head_pipeline_id)
add_concurrent_foreign_key(:merge_requests, :ci_pipelines,
column: :head_pipeline_id, on_delete: :nullify)
end
end
def down
if foreign_key_exists?(:merge_requests, column: :head_pipeline_id)
remove_foreign_key(:merge_requests, column: :head_pipeline_id)
end
end
end
|