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
38
|
# frozen_string_literal: true
module Gitlab
module BackgroundMigration
# Backfills the `namespaces.type` column, replacing any
# instances of `NULL` with `User`
class BackfillUserNamespace
include Gitlab::Database::DynamicModelHelpers
def perform(start_id, end_id, batch_table, batch_column, sub_batch_size, pause_ms)
parent_batch_relation = relation_scoped_to_range(batch_table, batch_column, start_id, end_id)
parent_batch_relation.each_batch(column: batch_column, of: sub_batch_size, order_hint: :type) do |sub_batch|
batch_metrics.time_operation(:update_all) do
sub_batch.update_all(type: 'User')
end
pause_ms = 0 if pause_ms < 0
sleep(pause_ms * 0.001)
end
end
def batch_metrics
@batch_metrics ||= Gitlab::Database::BackgroundMigration::BatchMetrics.new
end
private
def connection
ActiveRecord::Base.connection
end
def relation_scoped_to_range(source_table, source_key_column, start_id, stop_id)
define_batchable_model(source_table)
.where(source_key_column => start_id..stop_id)
.where(type: nil)
end
end
end
end
|
