discourse/db/migrate/20180223222415_remove_censo...

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class RemoveCensoredPatternSiteSetting < ActiveRecord::Migration[5.1]
def up
execute <<~SQL
INSERT INTO user_histories
(action, acting_user_id, subject, previous_value,
new_value, admin_only, created_at, updated_at)
SELECT 3, -1, 'censored_pattern', value, '', true, now(), now()
FROM site_settings
WHERE name = 'censored_pattern'
AND value != ''
SQL
execute "DELETE FROM site_settings WHERE name = 'censored_pattern'"
end
def down
raise ActiveRecord::IrreversibleMigration
end
end