diff options
Diffstat (limited to 'db/migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb')
-rw-r--r-- | db/migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/db/migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb b/db/migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb new file mode 100644 index 00000000000..aa617d8425c --- /dev/null +++ b/db/migrate/20180521162137_migrate_remaining_mr_metrics_populating_background_migration.rb @@ -0,0 +1,33 @@ +class MigrateRemainingMrMetricsPopulatingBackgroundMigration < ActiveRecord::Migration + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + BATCH_SIZE = 10_000 + + class MergeRequest < ActiveRecord::Base + self.table_name = 'merge_requests' + + include ::EachBatch + end + + def up + Gitlab::BackgroundMigration.steal('PopulateMergeRequestMetricsWithEventsData') + + metrics_not_exists_clause = + <<-SQL.strip_heredoc + NOT EXISTS (SELECT 1 FROM merge_request_metrics + WHERE merge_request_metrics.merge_request_id = merge_requests.id) + SQL + + MergeRequest.where(metrics_not_exists_clause).each_batch(of: BATCH_SIZE) do |relation, index| + range = relation.pluck('MIN(id)', 'MAX(id)').first + + Gitlab::BackgroundMigration::PopulateMergeRequestMetricsWithEventsData + .new + .perform(*range) + end + end + + def down + end +end |