diff options
Diffstat (limited to 'lib/gitlab/background_migration/backfill_member_namespace_for_group_members.rb')
-rw-r--r-- | lib/gitlab/background_migration/backfill_member_namespace_for_group_members.rb | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/lib/gitlab/background_migration/backfill_member_namespace_for_group_members.rb b/lib/gitlab/background_migration/backfill_member_namespace_for_group_members.rb new file mode 100644 index 00000000000..1ed147d67c7 --- /dev/null +++ b/lib/gitlab/background_migration/backfill_member_namespace_for_group_members.rb @@ -0,0 +1,38 @@ +# frozen_string_literal: true + +module Gitlab + module BackgroundMigration + # Backfills the `members.member_namespace_id` column for `type=GroupMember` + class BackfillMemberNamespaceForGroupMembers + 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) do |sub_batch| + batch_metrics.time_operation(:update_all) do + sub_batch.update_all('member_namespace_id=source_id') + end + + pause_ms = [0, pause_ms].max + sleep(pause_ms * 0.001) + end + end + + def batch_metrics + @batch_metrics ||= Gitlab::Database::BackgroundMigration::BatchMetrics.new + end + + private + + def relation_scoped_to_range(source_table, source_key_column, start_id, stop_id) + define_batchable_model(source_table, connection: ActiveRecord::Base.connection) + .joins('INNER JOIN namespaces ON members.source_id = namespaces.id') + .where(source_key_column => start_id..stop_id) + .where(type: 'GroupMember') + .where(source_type: 'Namespace') + .where(member_namespace_id: nil) + end + end + end +end |