42 lines
1.4 KiB
Ruby
42 lines
1.4 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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module BackgroundMigration
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# Back-fill project settings for projects that do not yet have one.
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class BackfillProjectSettings
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include Gitlab::Database::DynamicModelHelpers
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def perform(start_id, end_id, batch_table, batch_column, sub_batch_size, pause_ms)
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batch_relation = relation_scoped_to_range(batch_table, batch_column, start_id, end_id)
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batch_relation.each_batch(column: batch_column, of: sub_batch_size) do |sub_batch|
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insert_sql = <<~SQL
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INSERT INTO project_settings (project_id, created_at, updated_at)
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#{sub_batch.where(project_settings: { project_id: nil })
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.select('projects.id, NOW(), NOW()')
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.to_sql}
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ON CONFLICT (project_id) DO NOTHING
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SQL
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connection.execute(insert_sql)
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pause_ms = 0 if pause_ms < 0
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sleep(pause_ms * 0.001)
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end
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end
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private
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def connection
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ApplicationRecord.connection
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end
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def relation_scoped_to_range(source_table, source_key_column, start_id, stop_id)
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define_batchable_model(:projects, connection: connection)
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.where(source_key_column => start_id..stop_id)
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.joins("LEFT OUTER JOIN project_settings ON project_settings.project_id = projects.id")
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end
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end
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end
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end
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