diff options
Diffstat (limited to 'db/post_migrate/20190812070645_migrate_private_profile_nulls.rb')
-rw-r--r-- | db/post_migrate/20190812070645_migrate_private_profile_nulls.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/db/post_migrate/20190812070645_migrate_private_profile_nulls.rb b/db/post_migrate/20190812070645_migrate_private_profile_nulls.rb new file mode 100644 index 00000000000..063c1e16c27 --- /dev/null +++ b/db/post_migrate/20190812070645_migrate_private_profile_nulls.rb @@ -0,0 +1,31 @@ +# frozen_string_literal: true + +class MigratePrivateProfileNulls < ActiveRecord::Migration[5.2] + include Gitlab::Database::MigrationHelpers + + DOWNTIME = false + DELAY = 5.minutes.to_i + BATCH_SIZE = 1_000 + + disable_ddl_transaction! + + class User < ActiveRecord::Base + self.table_name = 'users' + + include ::EachBatch + end + + def up + # Migration will take about 7 hours + User.where(private_profile: nil).each_batch(of: BATCH_SIZE) do |batch, index| + range = batch.pluck(Arel.sql("MIN(id)"), Arel.sql("MAX(id)")).first + delay = index * DELAY + + BackgroundMigrationWorker.perform_in(delay.seconds, 'MigrateNullPrivateProfileToFalse', [*range]) + end + end + + def down + # noop + end +end |