Payment Prototype

_config.php

<?php
if(Director::isLive()){

    PaymentProcessor::set_live();

}else{

    PaymentProcessor::set_test();

}

Payment.php

<?php
class Payment extends DataObject{

}

interface PaymentProcessor{

    function setup(); //prepare for 

}

interface MerchantProcessor{

    function process();

}

interface GatewayProcessor{

    function redirect();

}

class PaymentController extends Controller{

    //handle success
    function success($request){
         
    }

    //handle payment failed
    function failure($request){
        
    }

    //handle user cancelling
    function cancel($request){
        
    }

    //handle instant payment notification
    function instantnotification($request){
        
    }

}

PaymentPage.php

<?php
class PaymentPage_Controller extends Page_Controller{

    function index(){

        $processor = 
        
        

    }

}

PaypalPayment.php

<?php
class PayPalPayment extends Payment{

    static $db = array(
        'OtherField' => 'Varchar'
    );

}

class PayPalProcessor implements PaymentProcessor{
    
    //field mapping
    

}