jedateach

<?php

//buyable has one or many payments
    //should this be absolutely required?
$buyable;

//creating a new payment
    //this will inject the appropriate gateway automatically, if one exists
$payment = new PaypalPayment(); //or
$payment = Payment::create('PaypalPayment');

jedateach

<?php
//

$payment->returnTo($controller,$action,$id);
$payment->process();



class PaymentGatewayController extends Controller{

jedateach

<?php

/*
 * goal: build SQL filter, based on parameter array
 */

//a hypothetical filter(parameters) for a new order item.
    //This data would typically come from request parameters.
$filter = array(
    'Size' => 20,

jedateach

<?php

/**
 * Helper class to create a filter for matching a dataobject, 
 * using field values or relationship ids and only those ids.
 * 
 * Combining fields defines a way to uniquely identify an object.
 * 
 * Useful for finding if a dataobject with given field values exists.
 * Protects against SQL injection, and searching on unauthroised fields.

jedateach

<?php

class Weight extends Decimal{


	function Nice(){
		//return in format appropriate to value eg 2grams instead of 0.002kg
	}

}

jedateach

<?php

class RunningTotalExtension extends Extension{

   private static $runningtotal = 0;

   function RunningTotal(){
       return self::$runningtotal ++;
   }

jedateach

<?php
class Payment extends DataObject{

}

interface PaymentProcessor{

    function setup(); //prepare for 

}

jedateach

<?php

/**
* Catch gateway-triggered requests
*/
class PaymentController extends Controller{

    function init(){
        $this->processor = $this->getProcessorForPayment(); //somehow get the right processor to continue handling
        //Perhaps the processor class is sent in the url, eg: mysite/paymentcontrol/PayPal/?extradata=....

jedateach

<?php
class MyController extends Controller{

   static $url_segment = 'mycontroller';

   function Link($action = ""){
       return Controller::join_links(self::$url_segment,$action);
   }

}

jedateach

Name: dummypayment
---
Director:
  rules:
    'dummy/external/$Action/$ID': 'DummyExternalGateway_Controller'
    'payment/$MethodName/$Action/$ID': 'Payment_Controller_GatewayHosted'


# first idea (tied to gateway):