@@ 180,7 180,7 @@ class UnknownTransactions
values = tx_hashes.map do |tx_hash|
"('#{DB.escape_string(tx_hash)}/#{DB.escape_string(address)}')"
end
- return [] unless values
+ return [] if values.empty?
DB.exec_params(<<-SQL)
SELECT transaction_id FROM
(VALUES #{values.join(',')}) AS t(transaction_id)