The parse / process notification functions are generally used when the payment gateway is of the hosted type where the user is redirected to paymentsystem.com to enter their credit card details.
Most (but not all) such systems then perform a “callback” to the site to inform it that they paymenbt has gone through (or been declined).
This callback goes to
yoursite.com/index.php?wpsc_action=gateway_notification&gateway=gateway_name
If the gateway is written correctly then parse_gateway_notification is called on object construction.
The convention seems to be to take whatever is in the GET or POST
and put it in $callback_values. Generally at least two – status
and transaction ID.
Then process_gateway_notification is called after object
construction; process $callback_values and update database.
NB that since 2012 (?) transaction_results() no longer despatches emails etc; you need to use $purchase_log->save() which sends
emails when the ‘processed’ status changes to paid.
If you are doing a SOAP call then I guess you are not going off-site and therefore not getting a callback. In which case your gateway just needs to set up the purchase_log and save() it as above in order to trigger the emails to customer and site admin.
