Attempted payments threshold on an order

[nfourtythree]

Additional functionality to track attempted payments on an order.

[philipboomy]

This could be very useful to block "credit card testers". Had one doing like 100 tests on the same order. He might have stopped sooner if he had to create a new order with address etc after every 5 attempts. So my suggestion is some feature that allows the system to delete an order/cart after x failed attempts.

[nfourtythree]

This is a setting that we can looked into in the future. If people are looking for a solution right now, here is some custom code you can add to a module to help with the prevention of checking out after failed transactions.

Event::on(
    Order::class,
    Order::EVENT_DEFINE_RULES,
    function(DefineRulesEvent $event) {
        $event->rules[] = [['transactions'], function($attribute) use ($event) {
            /** @var Order $order */
            $order = $event->sender;
            $failedTransactions = 0;

            foreach ($order->getTransactions() as $transaction) {
                if ($transaction->status !== Transaction::STATUS_FAILED) {
                    continue;
                }

                $failedTransactions++;
            }

            if ($failedTransactions > 3 && !$order->isCompleted) {
                $event->sender->addError($attribute, 'Too many failed transactions. Please contact customer service.');
            }
        }];
    }
);

This is a simple implementation of the idea, this would prevent saving the cart/order at all.