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# frozen_string_literal: true
module Gitlab
module BackgroundMigration
# Class to populate spent_at for timelogs
class UpdateTimelogsNullSpentAt
include Gitlab::Database::DynamicModelHelpers
BATCH_SIZE = 100
def perform(start_id, stop_id)
define_batchable_model('timelogs').where(spent_at: nil, id: start_id..stop_id).each_batch(of: 100) do |subbatch|
batch_start, batch_end = subbatch.pluck('min(id), max(id)').first
update_timelogs(batch_start, batch_end)
end
end
def update_timelogs(batch_start, batch_stop)
execute(<<~SQL)
UPDATE timelogs
SET spent_at = created_at
WHERE spent_at IS NULL
AND timelogs.id BETWEEN #{batch_start} AND #{batch_stop};
SQL
end
def execute(sql)
@connection ||= ::ActiveRecord::Base.connection
@connection.execute(sql)
end
end
end
end
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