60 lines
1.6 KiB
Ruby
60 lines
1.6 KiB
Ruby
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# frozen_string_literal: true
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class AddUniqueConstraintToShadowAccounts < ActiveRecord::Migration[5.2]
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def up
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create_table :anonymous_users do |t|
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t.integer :user_id, null: false
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t.integer :master_user_id, null: false
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t.boolean :active, null: false
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t.timestamps
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t.index [:user_id], unique: true
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t.index [:master_user_id], unique: true, where: 'active'
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end
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rows = DB.exec <<~SQL
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DELETE FROM user_custom_fields
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WHERE name = 'shadow_id' AND value in (
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SELECT value
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FROM user_custom_fields
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WHERE name = 'shadow_id'
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GROUP BY value
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HAVING COUNT(*) > 1
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)
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SQL
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if rows > 0
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STDERR.puts "Removed #{rows} duplicate shadow users"
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end
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rows = DB.exec <<~SQL
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INSERT INTO anonymous_users(user_id, master_user_id, created_at, updated_at, active)
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SELECT value::int, user_id, created_at, updated_at, 't'
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FROM user_custom_fields
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WHERE name = 'shadow_id'
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SQL
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rows += DB.exec <<~SQL
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INSERT INTO anonymous_users(user_id, master_user_id, created_at, updated_at, active)
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SELECT f.user_id, value::int, f.created_at, f.updated_at, 'f'
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FROM user_custom_fields f
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LEFT JOIN anonymous_users a on a.user_id = f.user_id
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WHERE name = 'master_id' AND a.user_id IS NULL
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SQL
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if rows > 0
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STDERR.puts "Migrated #{rows} anon users to new structure"
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end
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DB.exec <<~SQL
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DELETE FROM user_custom_fields
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WHERE name in ('shadow_id', 'master_id')
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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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