21 lines
634 B
Ruby
21 lines
634 B
Ruby
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# frozen_string_literal: true
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class CopyUserBadgesNotificationIdValues < ActiveRecord::Migration[7.0]
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disable_ddl_transaction!
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def up
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min_id, max_id = execute("SELECT MIN(id), MAX(id) FROM user_badges")[0].values
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batch_size = 10_000
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(min_id..max_id).step(batch_size) { |start_id| execute <<~SQL.squish } if min_id && max_id
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UPDATE user_badges
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SET new_notification_id = notification_id
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WHERE id >= #{start_id} AND id < #{start_id + batch_size} AND notification_id IS NOT NULL AND new_notification_id IS NULL
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SQL
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end
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def down
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raise ActiveRecord::IrreversibleMigration
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end
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end
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