Shopify/active_merchant — pull request #373 by nagash (2012-06-07 07:00:23+00:00)
Title: Added metadata fields for dynamic card descriptors with NAB Transact

Some code to enable dynamic card acceptor (text displayed on a customer's bank statement) for the NAB Transact gateway.

Open to changing the option names from merchant_name and merchant_location to something different - couldn't really find any cohesion between the few gateways that support card acceptors.

I've only added it for direct, once-off payments. NAB only has it documented there. Will have to get in touch with the bank to see if it can be done through "trigger" payments as well.