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# frozen_string_literal: true
class EnqueueRedactLinks < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
BATCH_SIZE = 1000
DELAY_INTERVAL = 5.minutes.to_i
MIGRATION = 'RedactLinks'
disable_ddl_transaction!
class Note < ActiveRecord::Base
include EachBatch
self.table_name = 'notes'
self.inheritance_column = :_type_disabled
end
class Issue < ActiveRecord::Base
include EachBatch
self.table_name = 'issues'
self.inheritance_column = :_type_disabled
end
class MergeRequest < ActiveRecord::Base
include EachBatch
self.table_name = 'merge_requests'
self.inheritance_column = :_type_disabled
end
class Snippet < ActiveRecord::Base
include EachBatch
self.table_name = 'snippets'
self.inheritance_column = :_type_disabled
end
def up
disable_statement_timeout do
schedule_migration(Note, 'note')
schedule_migration(Issue, 'description')
schedule_migration(MergeRequest, 'description')
schedule_migration(Snippet, 'description')
end
end
def down
# nothing to do
end
private
def schedule_migration(model, field)
link_pattern = "%/sent_notifications/" + ("_" * 32) + "/unsubscribe%"
model.where("#{field} like ?", link_pattern).each_batch(of: BATCH_SIZE) do |batch, index|
start_id, stop_id = batch.pluck('MIN(id)', 'MAX(id)').first
BackgroundMigrationWorker.perform_in(index * DELAY_INTERVAL, MIGRATION, [model.name.demodulize, field, start_id, stop_id])
end
end
end
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