Check, is there any other transaction for this order

createtransaction-check-other-transaction-for-order.php

<?php
// ...
        // todo: Check, is there any other transaction for this order/service
        $transaction = new Transaction();
        $found       = $transaction->find(['account' => $this->request->params['account']]);
        if ($found) {
            if (($found->state == Transaction::STATE_CREATED || $found->state == Transaction::STATE_COMPLETED)
                && $found->paycom_transaction_id !== $this->request->params['id']) {
                $this->response->error(
                    PaycomException::ERROR_COULD_NOT_PERFORM,
                    'There is other active/completed transaction for this order.'
                );
            }
        }