2023-07-12 16:47:08 +09:00
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# frozen_string_literal: true
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2022-10-26 04:43:44 +09:00
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class AddIndexIpBlocksOnIp < ActiveRecord::Migration[6.1]
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disable_ddl_transaction!
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def up
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duplicates = IpBlock.connection.select_all('SELECT string_agg(id::text, \',\') AS ids FROM ip_blocks GROUP BY ip HAVING count(*) > 1').to_ary
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duplicates.each do |row|
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IpBlock.where(id: row['ids'].split(',')[0...-1]).destroy_all
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end
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add_index :ip_blocks, :ip, unique: true, algorithm: :concurrently
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end
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def down
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remove_index :ip_blocks, :ip, unique: true
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end
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end
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