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class MigrateStagesStatuses < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
disable_ddl_transaction!
BATCH_SIZE = 10000
RANGE_SIZE = 1000
MIGRATION = 'MigrateStageStatus'.freeze
class Stage < ActiveRecord::Base
self.table_name = 'ci_stages'
include ::EachBatch
end
def up
Stage.where(status: nil).each_batch(of: BATCH_SIZE) do |relation, index|
relation.each_batch(of: RANGE_SIZE) do |batch|
range = relation.pluck('MIN(id)', 'MAX(id)').first
schedule = index * 5.minutes
BackgroundMigrationWorker.perform_in(schedule, MIGRATION, range)
end
end
end
def down
disable_statement_timeout
execute <<-SQL.strip_heredoc
UPDATE ci_stages SET status = null
SQL
end
end
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