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class AddStateIdToIssuables < ActiveRecord::Migration[5.0]
include Gitlab::Database::MigrationHelpers
DOWNTIME = false
MIGRATION = 'SyncIssuablesStateId'.freeze
# TODO - find out how many issues and merge requests in production
# to adapt the batch size and delay interval
# Keep in mind that the migration will be scheduled for issues and merge requests.
BATCH_SIZE = 5000
DELAY_INTERVAL = 5.minutes.to_i
class Issue < ActiveRecord::Base
include EachBatch
self.table_name = 'issues'
end
class MergeRequest < ActiveRecord::Base
include EachBatch
self.table_name = 'merge_requests'
end
def up
add_column :issues, :state_id, :integer, limit: 1
add_column :merge_requests, :state_id, :integer, limit: 1
queue_background_migration_jobs_by_range_at_intervals(Issue.where(state_id: nil), MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
queue_background_migration_jobs_by_range_at_intervals(MergeRequest.where(state_id: nil), MIGRATION, DELAY_INTERVAL, batch_size: BATCH_SIZE)
end
def down
remove_column :issues, :state_id
remove_column :merge_requests, :state_id
end
end
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