debian-mirror-gitlab/lib/gitlab/background_migration/backfill_user_namespace.rb
2022-04-04 11:22:00 +05:30

38 lines
1.2 KiB
Ruby

# 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, connection: connection)
.where(source_key_column => start_id..stop_id)
.where(type: nil)
end
end
end
end